Class / Patent application number | Description | Number of patent applications / Date published |
110185000 | WITH CONTROL MEANS RESPONSIVE TO A SENSED CONDITION | 75 |
20080271653 | Controlling curtain opening system in continuous furnaces - This invention is directed to a controlling curtain opening system in a continuous furnace which comprises a laser photo cell eye system situated in front of the curtain box. The laser photo cell eye system comprises a plurality of laser beams to monitor and adjust to the height of a moving products passing therethrough. | 11-06-2008 |
20080295749 | METHOD AND DEVICE FOR BURNING-OFF PRECIOUS METAL-CONTAINING MATERIALS - A recycling furnace and method are provided for processing potentially explosive precious metal-containing materials having organic fractions that combust with great energy, the furnace including a switching facility for alternating operation of a burning-off chamber of the furnace between: (A) pyrolysis or carbonization under protective furnace gas in an atmosphere comprising maximally 6 wt-% oxygen, and (B) oxidative combustion of the organic fractions including carbon. The furnace has indirect heating and a control that determines the end of the pyrolysis or carbonization by a sensor and controls the switching facility to supply air or oxygen to the interior of the furnace. Steps (A) and (B) are carried out sequentially in the furnace chamber, wherein neither the batch is changed, nor the furnace is opened. After the end of step (A) is determined, step (B) proceeds right after the pyrolysis or carbonization by supplying air or oxygen. A dosing of liquid or liquefied substances during the pyrolysis is controlled by at least one parameter of post-combustion. Thermal post-combustion is used for two furnace chambers, one operated for pyrolysis or carbonization and the other operated as a combustion chamber. | 12-04-2008 |
20090173259 | OUTDOOR FURNACE MONITOR - A monitoring system that provides a display, either local or remote, of operation information regarding an outdoor furnace or boiler system. The monitor polls various sensors, including information relative to water temperature, draft fan operation, pump operation, various switch status, safety status, and emissions status. The various sensors may be operationally connected wirelessly with the monitor. The monitor displays operational status information, including indications requiring operator attention. Thus, operator maintenance is more effectively applied as needed rather than also on an information gathering basis. | 07-09-2009 |
20090183659 | PELLET STOVE - According to embodiments of the present invention, a pellet stove includes a firepot assembly with a bottom plate slideable along rails to move between a closed position during combustion in the firepot and an open position during ash removal. According to other embodiments, a firebox or combustion enclosure includes a plurality of airfoils formed on the inner and outer surfaces of the enclosure to facilitate heat exchange between exhaust gases flowing across the inner surface of the enclosure and air blown across the outer surface of the enclosure. According to some embodiments, the airfoils and enclosure are of integral unibody construction. According to yet other embodiments, a user sets parameters via a wall control unit, and a stove control unit receives the parameters and automatically controls fuel feed rate, ignition, convection blower, combustion blower, and/or firepot cleaning based on the one or more parameters. | 07-23-2009 |
20090308292 | COAL BURNING BOILER APPARATUS - In a coal burning boiler apparatus, temperature of the pulverized coal to be fed to the boiler can be set depending on the property of the combustion coal, so that stable ignition and combustion can be made regardless of the property of the combustion coal fed. | 12-17-2009 |
20100024693 | FOSSIL-FUEL-FIRED SYSTEM HAVING REDUCED EMISSIONS AND METHOD OF OPERATING THE SAME - A fossil-fuel-fired system, which includes an emissions-control-agent dispenser, a furnace, an emissions monitor and, optionally, a controller, is disclosed. The emissions-control-agent dispenser provides a prescribed amount of organic-emissions-control agent, such as, for example, an opacity-control agent to the fossil-fuel-fired system. The furnace includes an exhaust communicating with the atmosphere. The emissions monitor is capable of measuring at least one property of the flue-gas communicated through the exhaust to the atmosphere. For example, when an organic-emissions-control agent is an opacity-control agent, the emissions monitor has the capability of at least measuring opacity. When included, the controller communicates with at least the emissions-control-agent dispenser and the emissions monitor. | 02-04-2010 |
20100058960 | Biomass Fuel Furnace System and Related Methods - A furnace system for heating a poultry brooder house includes a firebox for burning biomass fuel, and a grate within the firebox for burning the biomass fuel thereon. A distributor assembly may positioned within the firebox and is located directly above the grate. The distributor assembly includes a distributor plate having a plurality of apertures therethrough, and a distributor arm above the distributor plate that is movable relative to the distributor plate to cause biomass fuel supported on the plate to pass through the apertures and fall onto the grate. The furnace system may include a hopper assembly that defines a well for receiving a volume of biomass fuel for delivery to the grate or to the distributor plate. | 03-11-2010 |
20100288171 | GASIFICATION COMBUSTION SYSTEM - A two stage refuse gasification combustion system for processing refuse is disclosed. The system may contain features such as an advancer, a first and second gasifier, a gas regulator, and a post combustor. Additionally, methods for regulating gas and advancing refuse through a two stage refuse gasification combustion system are disclosed. | 11-18-2010 |
20100307387 | COMBUSTION FURNACE CONTROL APPARATUS - A combustion furnace control apparatus for which an operation control system that ensures the combustion safety of the combustion furnace can be constructed easily. Interlocks pertaining to the safe operation of a combustion furnace are classified as a 1 | 12-09-2010 |
20110056416 | SYSTEM FOR COMBUSTION OPTIMIZATION USING QUANTUM CASCADE LASERS - A system with a boiler and a turbine, and an associated control method. The method includes sensing a plurality of operating conditions at a first common boiler location. At least one of the plurality of operating conditions sensed at the first common location is indicative of a combustion anomaly occurring during operation. The combustion anomaly indicated by the plurality of operating conditions at the first common location is traced back to an offending burner that is at least partially responsible for the combustion anomaly based on a model that takes into consideration at least two of the plurality of operating conditions sensed at the first common location. At least one of a process input and a boiler configuration is adjusted to establish a desired value of the operating conditions at the first common location. | 03-10-2011 |
20110146543 | Particulate Fuel Combustion Method and Furnace - Method of operating a combustion furnace comprising at least one pair of particulate fuel burners positioned opposite one another across a combustion zone, whereby each burner of a pair operates in turn to generate a flame directed at the other inactive burner of the pair so as to locally overheat the burner block of the inactive burner. | 06-23-2011 |
20110239914 | COMBUSTION CONTROLLING DEVICE - Two temperature controllers, a first temperature controller and a second temperature controller are provided, and combustion in the furnace is controlled based on a first signal and a second signal outputted therefrom. Doing so enables safe control of the furnace even when a failure occurs in one of the temperature controllers. | 10-06-2011 |
20120090515 | BLAST FURNACE TOP GAS RECYCLING PROCESS AND CORRESPONDING RECYCLING EQUIPMENT - The invention mainly relates to a process for recycling blast furnace gas in which at least one portion of the gases resulting from the blast furnace undergo a CO | 04-19-2012 |
20130000530 | PORTABLE MEDICAL WASTE PROCESSING SYSTEM & METHOD - A portable medical waste processing system and method includes a processing device and a medical waste container. The processing device has an enclosure with a housing and a lid, with at least one heater, a control system, a filtration system and a cooling system inside the enclosure. The control system regulates the temperature of the heater and time of the process cycle. The filtration system prevents noxious odors emanating from the container during the process cycle. The cooling system prevents heat build-up inside the enclosure and also ensures that the sides of the enclosure do not exceed harmful temperatures. The portable medical waste processing system melts syringes and sterilize needles, lancets and infectious waste that are placed in the medical waste container that is inserted into the heater. The system identifies and responses to short and long term power interruptions. | 01-03-2013 |
20150107496 | BIOMASS GASIFIER SYSTEM FOR POWER GENERATION - The various embodiments herein provide an improved biomass based down draft gasifier for producing electrical energy. The gasifier comprises a reactor with double walled construction having an annular space between outer and inner shells. The annular space houses multiple helical guide vanes welded to the inner shell. The reactor is covered with a top cover assembly. An air inlet manifold is provided for directing the controlled air into the reactor through the air inlet nozzles. An automatic start system is provided for controlling the combustion of inlet fuel done with a spark plug. The gasifier comprises a throat which permits the ashes and charcoal of burnt fuel to drop into the bottom of the reactor. The gas separation holes are provided at the bottom of the reactor to separate the product gas from the charcoal. The product gas is taken out from an output pipe. | 04-23-2015 |
110186000 | Feed control | 60 |
20080264310 | Combustion Method and System - A method of combustion for pulverized hydro-carbonaceous fuel includes the steps of injecting an oxidant/fuel stream into a burner, causing a low-pressure zone; directing a flow of a high-temperature combustion gas from a combustion chamber into the low-pressure zone in the burner; mixing the high-temperature combustion gas with the injected oxidant/fuel stream to heat the injected oxidant/fuel stream, and injecting the heated oxidant/fuel stream from the burner to the combustion chamber, wherein the oxidant/fuel stream is rapidly devolatilized and combusted in a flame that has a high temperature; sensing a combustion parameter; and based on the sensed combustion parameter, controlling combustion to achieve at least one of a desired NOx reduction and a desired distance from the burner to a flame front. | 10-30-2008 |
20090050034 | SYSTEM FOR AUTOMATIC FEEDING OF FURNACES WITH LIQUID FUEL - A device for automatic feeding liquid fuel ( | 02-26-2009 |
20090199747 | BIOMASS BURNER SYSTEM - A biomass burner system includes a burner assembly, a fuel storage assembly coupled to the burner assembly, and a heat exchanger configured to receive the heat from the burner assembly. The biomass burner system includes a controller which is programmable to monitor various operating conditions of the biomass burner and control the operation of the biomass burner to confirm safe and efficient operation. The controller is operable to monitor a temperature associated with the combustion chamber, a temperature associated with the heat exchanger, and a temperature associated with the air exiting the system. The biomass burner system is operable to vary the flow of air into the combustion chamber, the flow of fuel into the combustion chamber, the operation of an igniter system to maintain the efficient operation of the biomass burner system. | 08-13-2009 |
20090205544 | COAL ROPE LOCATOR - An apparatus ( | 08-20-2009 |
20090277363 | Oxyfuel Boiler System and Method of Retrofit of Air Fired Boiler to Oxyfuel Boiler - An oxyfuel boiler system, comprising: an oxygen generator to separate oxygen from air; a coal supply unit to dry and pulverize coal; a burner having a fuel feed path for feeding pulverized coal supplied from the coal supply unit and an oxidizer feed path for feeding oxidizer; a boiler provided with the burner; an exhaust gas discharge line to discharge exhaust gas generated in the boiler into environment; an exhaust gas treatment apparatus provided in the exhaust gas discharge line, a CO | 11-12-2009 |
20100037805 | Method of and Apparatus for Controlling the Temperature of a Fluidized Bed Reactor - A method of and an apparatus for controlling the temperature of a fluidized bed reactor, comprising a separator for separating first solid particles from the fluidized bed reactor, a return duct for returning a first portion of the first solid particles to the fluidized bed reactor, a discharge duct for the discharge of a second portion of the first solid particles and an inlet duct for transferring second solid particles from a second fluidized bed reactor to the fluidized bed reactor, in which the return duct and the inlet duct share a common end portion for transferring a mixture of solid particles, formed of the first portion of the first solid particles and the second solid particles, to the fluidized bed reactor. The apparatus also preferably includes a fluidized mixing device for mixing the first portion of the solid particles and the second solid particles with each other. | 02-18-2010 |
20100050912 | METHOD FOR CONTROLLING THE OPERATION OF A ROTARY FURNACE BURNER - In order, for operating the lance burner of a rotary tubular furnace for the production of cement clinker from calcined raw cement meal, to provide an automated regulation method which is optimized in terms of the configuration of the burner flame for all types and quantities of fuels used, according to the invention a regulation method is proposed in which the characteristics of the burner flame are used as measurement variables, and the measurement variables are delivered to a controller which can vary at least three different manipulated variables of the burner, such as the spatial outflow angle and the swirl momentum of the swirled primary-airstream and/or the angle of divergence of the primary-air/jet-air jets emerging from individual nozzles and/or the velocity of emergence and/or swirl component of a stream of fragmentary alternative fuels or secondary fuels which is blown through the burner. | 03-04-2010 |
20100212555 | Oxyfuel Combustion Boiler Plant and Operating Method for the Same - An oxyfuel combustion boiler plant having a first boiler and a second boiler for injecting gas including oxygen in higher concentration than that in the air, gas including carbon dioxide in higher concentration than that in the air, and fuel from a burner and generating steam by combustion gas in a furnace, respectively, comprising:
| 08-26-2010 |
20100282139 | METHODS FOR INCINERATING SLUDGE IN A COMBUSTOR - A method controls mass and heat loading of sludge feed into a fluidized bed combustor (FBC) controlled via regulation of a polymer dosage or a sludge feed rate including: continuously monitoring at least one performance characteristic of the FBC; producing an input signal characteristic; analyzing the input signal and determining a first rate of change of the characteristic; generating an output signal based on the first rate of change to control addition of polymer to the FBC; generating a second output signal to control addition of sludge feed to the FBC; and determining a transition point between the addition of polymer and addition of sludge, which transition point is an upper limit of a first rate change to maintain flow so that the value of the characteristic is maintained proximate at the upper limit. | 11-11-2010 |
20100319592 | System and Method for Full Combustion Optimization For Pulverized Coal-Fired Steam Boilers - A method and system for controlling a pulverized coal fired boiler wherein the flow of a coal/air mixture flowing to each burner is monitored and transmitted to a distributed control system. The distributed control system also monitors and controls the position of dampers in a splitter that feeds the coal/air mixture to the burners. The dampers are controlled in a closed loop fashion to achieve a optimal boiler performance. | 12-23-2010 |
20100319593 | METHODS AND SYSTEMS FOR CLEANING HEAT EXCHANGE SURFACES OF A HEAT EXCHANGE SYSTEM - Means for obtaining accurate knowledge of location and amount of fouling inside a heat exchange system, such as a boiler of a power plant, are provided. According to the invention this knowledge can be used to optimize cleaning of a heat exchange system. The system of the invention comprises: Means for measuring particles in the exhaust gas stream of the heat exchange system. These particles are at least partly released when cleaning a certain part of the heat exchange surface of the heat exchange system. Means for creating information of the fouling in an electronic memory by linking together coordinates of the part of the heat exchange surface being cleaned and the measurement data created during the cleaning of said part. | 12-23-2010 |
20100326337 | CONTROL DEVICE OF COAL PULVERIZER - There is provided a control device of a coal pulverizer which enables estimation of a coal output with a precision suited for a purpose. In a control device of a coal pulverizer which pulverizes coal by the coal pulverizer and estimates coal output by which the pulverized coal is output to a boiler, the control device includes a main operation circuit which calculates a command signal associated with a coal feed rate on the basis of detection data from a boiler or a power generator connected to the boiler, and an additional control unit which calculates the deviation between a standard coal output pattern preset in the coal pulverizer, and a current coal output pattern, and adds a calculation result by the additional control unit to the main operation circuit as a correction signal. | 12-30-2010 |
20110061575 | COMBUSTION CONTROL SYSTEM AND METHOD USING SPATIAL FEEDBACK AND ACOUSTIC FORCINGS OF JETS - A system is provided that includes a combustion system having a plurality of jets; a spatial monitoring system with a plurality of sensors disposed in a spatial grid within or downstream from the combustion system; and a control system configured to adjust a forcing frequency of at least one fluid jet in the plurality of fluid jets in response to sensor feedback from the spatial monitoring system. | 03-17-2011 |
20110100271 | Device and Method for Controlling the Fuel-Air Ratio During the Combustion of Ground Coal in the Firing System of a Coal Power Plant - A device and method for controlling fuel-air ratio during combustion of ground in a coal power plant, including pneumatic delivery of ground coal to the burners and feeding combustion air to burners while controlling the combustion air and the amount of carrier air. A high reliability of control combined with low maintenance of the air mass measurement devices is achieved. This is achieved by a measurement device for measuring the amount of combustion air which, according to correlation measurement, evaluates the triboelectric effects on sensors. Between 0.1 mg and 10 mg of fine-grained particles of a diameter between 20 μm and 200 μm are introduced per m | 05-05-2011 |
20110113993 | Method of Operating a Furnace - A method of operating a furnace having process tubes and multiple burners where it is desired to conform the temperatures of the process tubes to selected target temperature criterion. The present method provides a systematic and quantitative approach to determine how to adjust burner flow rates to result in desired tube wall temperatures, for example to minimize the temperature deviation between tube wall temperatures at a predetermined elevation in the furnace. | 05-19-2011 |
20110174201 | FURNACE, A METHOD FOR OPERATING A FURNACE AND A FURNACE CONTROLLER CONFIGURED FOR THE SAME - A controller for a gas furnace, a computer-usable medium for implementing a method and a gas furnace are disclosed herein. In one embodiment, the controller includes: (1) an interface configured to receive a heating call and (2) a processor configured to enable an inducer of the gas furnace at a low speed based on the heating call and ignite the gas furnace at a high fire operation when determining a low fire pressure switch of the gas furnace is open. | 07-21-2011 |
20110271880 | Redundant Modulating Furnace Gas Valve Closure System and Method - In a modulating furnace with an integrated furnace control (IFC) that may enter a lockout mode for any one or more of a variety of safety reasons, the IFC may be programmed to send a “home” signal to the regulator stepper motor to close the regulator seat thereby reducing the outlet pressure of the gas valve to zero or near zero. Even though the ITC may have several different safety lockout modes, an additional home command from the IFC allows the modulating gas valve to position itself to a reference point such that the outlet pressure would approach zero pressure, even when the gas valve is energized at the wrong time due to a short circuit or miswire, or mechanically stuck open. By using the home command, an additional safety redundancy is provided whenever the furnace enters a lockout mode. | 11-10-2011 |
20120247374 | Independent vector control system for gasification furnace - A control sequencing system for a biomass fuel gasification furnace utilizes control vector separation and isolation. The three vector system provides clean operation and fuel efficiency. A wide variety of solid fuel may be used of various fuel values, moisture content, and fuel particle size. The independent control vectors are separated into fan speed, fuel pile level maintenance, and oxygen content maintenance. | 10-04-2012 |
20120260834 | BOILER CONTROL SYSTEM - A boiler control system for efficiently controlling the operation of a packaged boiler is provided. The system includes a combustion air control system, a fuel control system, a flue gas sensing system, and a boiler controller. The boiler controller is in operative communication with the combustion air control system, fuel control system, and the flue gas sensing system. Based upon a system demand, the boiler controller controls coarse-level operation of the combustion air control system and the fuel control system. The flue gas sensing system may include an oxygen sensor and a flue gas differential sensor to sense a change in a characteristic of the flue gas. When the flue gas differential sensor senses a change in the flue gas characteristic that meets a flue gas differential setpoint, the boiler controller controls the fine-level operation of the boiler. | 10-18-2012 |
20120291679 | METHOD FOR CORRECTING THE COMBUSTION SETTINGS OF A SET OF COMBUSTION CHAMBERS AND APPARATUS IMPLEMENTING THE METHOD - The invention relates to a method for real-time, continuous adjustment of a set of thermal combustion chambers ( | 11-22-2012 |
20130025512 | FUEL OXYGENATION APPARATUS AND METHOD - In one aspect, a fuel oxygenation apparatus includes a fuel oil supply fluidically coupled to the inlet of a positive displacement pump for delivery of the fuel oil to a fuel oil burner. An oxygen supply is fluidically coupled to the inlet of the positive displacement pump. During the suction cycle, a momentary vacuum is created at the pump inlet side drawing oxygen gas into the fuel line where it admixes with the fuel oil supply. Oxygenating the fuel prior to combustion increases efficiency of the burner and reduces undesirable emissions. | 01-31-2013 |
20130213279 | Oxygen Measuring Apparatuses - An oxygen measuring apparatus ( | 08-22-2013 |
20130255546 | WALL MOUNTED PELLET STOVE - A wood pellet stove operable to mount to a wall includes a combustion chamber, a combustion chamber door, and a hopper. The combustion chamber has a front, back, and side. The combustion chamber door is in the front of the combustion chamber. The hopper is mounted at the side of the combustion chamber. The bottom of the hopper is below a top of the combustion chamber, and a top of the hopper is substantially coplanar with the top of the combustion chamber. The stove may also include a sight glass or fuel level monitoring system for determining a fuel level of the hopper without opening the hopper. | 10-03-2013 |
20130340658 | EXHAUST GAS RECYCLING CONTROL SYSTEM OF COMBUSTION DEVICE - An exhaust gas recycling control system includes a combination device, having inlet and exhaust ends. The exhaust end is connected to the inlet end by a recycling tube which has a control valve to control an open or closed state. An oxygen sensor mounted detects oxygen content in an exhaust gas and convert the oxygen content detected signal into a voltage signal sent to a controller. The controller controls the control valve to open or close. When the oxygen content of the exhaust gas is higher than a threshold, the control valve opens and a high oxygen content of exhaust gas flows through the recycling tube to the inlet end. | 12-26-2013 |
110187000 | Supplemental burner | 1 |
20120240831 | System and Process for the Combustion of Solid Fuels - A system that provides for the efficient combustion of solid fuels is disclosed. The system includes a combustion chamber, a solid fuel dosing system for determining an amount of solid fuel to supply to the combustion chamber, a solid fuel conveying air blower for conveying solid fuel from the solid fuel dosing system to the combustion chamber, and an air combustion fan for supplying air to the combustion chamber via air conveying piping. The system may optionally further include a measurement and auxiliary fuel control system for determining an amount of auxiliary fuel to supply to the combustion chamber. Combustion of the auxiliary fuel raises a temperature of the combustion chamber to a level suitable for combustion of the solid fuel. The combustion chamber may be mounted on a displacement trolley. | 09-27-2012 |
110188000 | Of noncombustible fluid; e.g., air, etc. | 35 |
20090183660 | Method for controlling the combustion air supply in a steam generator that is fueled with fossil fuels - A method for controlling the combustion air supply in a steam generator that is fueled with fossil fuels, the combustion air being supplied gradually in different combustion zones. The combustion air supply is controlled, depending on the NOx and/or CO content in the flue gas, in such a manner that first the air supply is varied between the different combustion zones with approximately constant air volumes. An external control of the overall air volume overrides this type of control. | 07-23-2009 |
20090260553 | METHOD AND DEVICE FOR CONTROLLING THE SUPPLY OF COMBUSTION AIR TO A COMBUSTION CHAMBER - A device is supplying combustion air to a combustion chamber, in which solid fuel is being burned, and the air supply is controlled in accordance with at predetermined program as a function of combustion time. The predetermined program is preferably based on empirical data. The combustion air may be supplied by means of a valve member, which is displaceable between first and second positions, and the valve member may expose varying areas of air supply opening(s) when moved between said positions. Biasing means, such as spring means, may bias the valve member towards said second position and slowing-down means may delay the movement of the valve member. | 10-22-2009 |
20100031858 | Pulverized Coal Boiler - The present invention provides a highly reliable pulverized coal boiler that ensures suppression of a rise in flame temperature caused during the combustion of an unburnt gas in a furnace when combustion air is supplied from after-air ports so as to reduce the concentration of thermal NOx generated during the combustion. | 02-11-2010 |
20100077941 | OXY/FUEL COMBUSTION SYSTEM WITH MINIMIZED FLUE GAS RECIRCULATION - This disclosure includes a system and method of controlling fuel combustion including providing a system, measuring a property, and providing oxygen and fuel in response to the property. The system includes a furnace arranged and disposed to receive fuel and oxygen and combust the fuel and the oxygen to form a combustion fluid, a plurality of heat exchanger sections arranged and disposed to receive heat from the combustion fluid, and a plurality of oxygen injectors arranged and disposed to controllably provide oxygen to the combustion fluid to adjust composition of the combustion fluid and temperature of the combustion fluid. The property measured is selected from the group consisting of temperature of the combustion fluid, composition of the combustion fluid, temperature of the heat exchanger sections, and combinations thereof and is performed in close proximity to the oxygen injectors. | 04-01-2010 |
20100224108 | PULVERIZED COAL-FIRED BOILER AND PULVERIZED COAL BURNING METHOD - A pulverized coal-fired boiler efficiently supplies air to a central part of a furnace and the neighborhood of a furnace wall, thereby promoting mixture with combustion gas, and reducing both NOx and CO. | 09-09-2010 |
20100229768 | METHOD FOR REGULATING THE OUTPUT OF A SOLID-FUEL FURNACE AND FURNACE WITH A CORRESPONDING OUTPUT REGULATOR - A method is provided for regulating the output of a solid fuel furnace having primary and secondary combustion chambers arranged adjacent to each other, in particular one above the other or side by side, and are separated from each other by a partition in the floor or wall but are nevertheless connected to each other by at least one partition opening. The secondary combustion chamber is connected through a secondary exhaust-gas channel to a flue-gas passage, and the primary combustion chamber is connected to the flue-gas passage by a transition opening, wherein the transition opening can be closed at least partially by a flue-gas flap. Both a primary air supply and a secondary air supply are provided. A first temperature sensor is arranged in the secondary exhaust-gas channel and controls the primary air volume flow as a function of the temperature in the secondary exhaust-gas channel, while the secondary air volume flow is held substantially constant. | 09-16-2010 |
20110126742 | METHOD AND APPARATUS OF CONTROLLING FLOW RATE OF PRIMARY RECIRCULATING EXHAUST GAS IN OXYFUEL COMBUSTION BOILER - Provided are a method and an apparatus of controlling a flow rate of a primary recirculating exhaust gas in an oxyfuel combustion boiler, capable of realizing a stable combustion by a burner in oxyfuel combustion. Weight ratio of flow rate of primary recirculating exhaust gas [ton/h] to amount of pulverized coal from a mill [ton/h] is defined as G/C, and the flow rate of primary recirculating exhaust gas is controlled so that the G/C falls within a given range. | 06-02-2011 |
20110139045 | PREMIX GAS BURNER - An air/gas premix burner, comprising:
| 06-16-2011 |
20110185952 | BURNER STRUCTURE - To provide a burner structure in which a burner is capable of highly precisely controlling the flow rate of the air for combustion within itself. An air flow passage ( | 08-04-2011 |
20120079969 | COMBUSTION CONTROLLER - The combustion controller controls the fuel and air that are supplied to the combustion furnace for burning substances, and addresses the aforementioned object by including: fuel supply unit for supplying fuel and air into the combustion furnace; air supply unit for supplying air into the combustion furnace, the air supply unit being disposed downstream of the fuel supply unit in the direction of flow of combustion air; concentration measuring unit for measuring the concentration of hydrogen sulfide of the combustion air by passing a measurement beam of light through the combustion air at a measurement position downstream of the fuel supply unit in the direction of flow of the combustion air; and control unit for controlling the amount of air supplied from the fuel supply unit based on a measurement result provided by the concentration measuring unit. | 04-05-2012 |
20120227643 | RECYCLING FURNACE FOR BURNING OFF PRECIOUS METAL-CONTAINING MATERIALS - A recycling furnace is provided for processing potentially explosive precious metal-containing materials having organic fractions that combust with great energy. The furnace includes a switching facility for alternating operation of two burning-off chambers of the furnace between: (A) pyrolysis or carbonization under protective furnace gas in an atmosphere comprising maximally 6 wt-% oxygen, and (B) oxidative combustion of the organic fractions including carbon. The furnace has indirect heating and a control that determines the end of the pyrolysis or carbonization by a sensor and controls the switching facility to supply air or oxygen to the interior of the furnace. A continuous conveyor for dosing of liquids or liquefied substances during the pyrolysis is controlled by at least one parameter of post-combustion, preferably a temperature sensor. A single waste gas treatment facility is used for thermal post-combustion for the two furnace chambers. | 09-13-2012 |
20120325128 | Homogenized Feeding of Pulverized fuel with a controllable restriction in the pulverized fuel feed line - An apparatus for constantly supplying pulverized fuel at ambient or increased pressure includes a restrictable pulverized fuel control valve in the pulverized fuel feed line connecting the swirl layer of a dispensing vessel with a pulverized fuel collector is provided. This pulverized fuel control valve effects a compensation for and also attenuation of the pressure fluctuations, as occur in the pulverized fuel feed line, particularly during refill processes of the dispensing vessel. Special embodiments relate to a further homogenization by a fixed throttle facility and also auxiliary gas feeds into the pulverized fuel feed line. | 12-27-2012 |
20120325129 | EQUALIZED INJECTION OF PULVERIZED FUELS WITH FIXED RESTRICTION POINT IN THE PULVERIZED FUEL CONVEYOR LINE - An apparatus for constant feeding of pulverized fuels at ambient or elevated pressure having a fixed restrictor device in the pulverized fuel conveyor line connecting a metering vessel to a pulverized fuel consumer is provided. The restrictor device effects a compensation and also attenuation of pressure fluctuations such as occur in the pulverized fuel conveyor line, in particular during operations to replenish the metering vessel. Special embodiments relate to a further equalization by means of injections of auxiliary gas into the pulverized fuel conveyor line. | 12-27-2012 |
20130133559 | FLOW REGULATOR DEVICE - A fluid flow regulator of the present invention comprises in combination a stationary hollow duct housing having a first end and a second end through which fluid flows. The device also incorporates a movable member aligned concentric with the duct having an end essentially similarly shaped and sized to the first end of the housing. The member may be spaced apart from the duct so that fluid can enter the duct housing through an opening defined by the space between the end of the member and the first end of the duct, with the movement of the member serving to change the size of opening. The movement of the member is controlled by the movement of a float located within the duct. The position of the float can be preset by the operator of the invention so that when fluid flow into the duct is at a predetermined amount the float will remain stationary, and when the fluid flow increases above such predetermined level the float will be moved in the direction of the fluid flow and when fluid flow into the duct is below said predetermined amount, the float will move the member opposite the direction of fluid flow. | 05-30-2013 |
20130255547 | PULVERIZED COAL-FIRED BOILER AND PULVERIZED COAL BURNING METHOD - A pulverized coal-fired boiler efficiently supplies air to a central part of a furnace and the neighborhood of a furnace wall, thereby promoting mixture with combustion gas, and reducing both NOx and CO. The main after air ports are structured so as to jet air having a large momentum for enabling arrival at the central part of the furnace, and the sub-after air ports are structured so as to jet air having a small momentum to the neighborhood of the wall face of the furnace, and a sectional center of each of the sub-after air ports is within a range from 1 to 5 times of a caliber of the main after air ports from a sectional center of each of the main after air ports. | 10-03-2013 |
20140102341 | Combustion Efficiency Control Systems - A high efficiency laminar flow burner system for proving a stream of heat energy including a supply input module for providing fuel and laminar streams of air to a combustion manifold. The laminar air delivery system includes a damper, a blower, and an air delivery controller. The air delivery controller receives an efficiency signal to control the flow of a laminar air intake stream by adjusting the damper. The combustion manifold includes an air-fuel mixing system, a stoichiometric unit, and a refractory unit each coupled to one another. The laminar air intake stream traveling from the supply input module passes through a stoichiometric unit body to meet with a first combustion stream from an air-fuel mixing chamber within the stoichiometric unit body to define a second combustion stream. The second combustion stream then travels across the refractory passageway to define a third combustion stream. | 04-17-2014 |
20140261111 | Combustion Efficiency Control System with a Stoichiometric Controller for a Laminar Burner System - A combustion efficiency control system includes an air flow sensor arrangement, a fuel controller unit, a burner output sensor module, and an operating unit. The air flow sensor arrangement including an upstream laminar flow control system and a downstream laminar flow control system and is communicatively coupled to a damper, a blower, and a flow conditioner. The air flow sensor arrangement measures laminar air flow and emits an efficiency signal that includes laminar air flow input values. An operating unit compares laminar air flow input values with combustion output values and a stoichiometric controller receives the comparison to generate an efficiency signal having a combination of air and fuel control data for the damper, the blower, the flow conditioner and the fuel controller unit, respectively. The stoichiometric controller maintains a selected combustion efficiency setting until cancelled. | 09-18-2014 |
20140318427 | Methods and Systems for Controlling the Products of Combustion - The present invention relates to methods and systems for controlling a combustion reaction and the products thereof. One embodiment includes a combustion control system having an oxygenation stream substantially comprising oxygen and CO | 10-30-2014 |
20160084499 | SMALL HEATING SYSTEM WITH IMPROVED VENTILATION AND CYCLONIC COMBUSTION CHAMBER - A small heating system is provided for the combustion of solid fuels, having: a gasification zone for generating combustion gas and a combustion zone for combusting combustion gas; a first blower for supplying primary air into the gasification zone; and a second blower for supplying secondary air into the combustion zone , wherein the first blower can be regulated depending on the desired output of the small heating system and/or the second blower can be regulated depending on a desired oxygen content in the exhaust air from the combustion zone. | 03-24-2016 |
20160123585 | COMBINED COMBUSTION DEVICE - A combined combustion device comprises: a plurality of combustion units ( | 05-05-2016 |
20160138806 | INDUSTRIAL FURNACE AND PROCESS FOR CONTROLLING THE COMBUSTION INSIDE IT - Industrial furnace ( | 05-19-2016 |
110189000 | Pressure sensor | 4 |
20090308293 | BOILER AND METHOD FOR CONTROLLING AIR AND FUEL RATIO USING AIR PRESSURE SENSOR - Disclosed is an air-fuel ratio control boiler using a air pressure sensor and method for controlling the air-fuel ratio thereof. The boiler is comprised of a fan, the air pressure sensor, a air pressure sensor voltage measurement unit, a air pressure sensor voltage compensation unit, and a controller, and previously compensates for noise factors caused by deviation (error) of a component property, a constituent, of the air pressure sensor so as to be matched to initial reference voltage prior to operating the fan, thereby maximizing the effectiveness of the air-fuel ratio. Further, the boiler makes it possible not only to exert an optimal fuel efficiency effect due to the maximization of combustion efficiency, but also to minimize discharge of harmful gases, thereby preventing environmental pollution in advance, and thus improving the reliability of products. | 12-17-2009 |
20130291770 | SOLID FUEL BURNER AND COMBUSTION DEVICE USING SAME - A solid fuel burner and a combustion device using the solid fuel burner includes: a throat provided to the outer periphery of a fuel nozzle and injecting combustion gas into a furnace; a duct for delivering the combustion gas to the throat, the duct being provided with an inlet opening into which the gas is introduced from a direction perpendicular to the central axis of the nozzle and having a flow path formed so as to be bent at a right angle in the direction of the central axis of the nozzle; a damper provided in the duct; and a differential pressure detection device for detecting the difference between the pressure of the combustion gas flowing through the upstream portion of the duct and the pressure of the combustion gas flowing through the downstream portion of the duct. The damper is provided near and downstream of the inlet opening of the duct. | 11-07-2013 |
20130305967 | Burner - A burner has a combustion head, an ignition device, a fuel delivery/regulating device, a combustion air delivery/regulating device, a safe operation monitoring device, and an electronic control device. The combustion air delivery/regulating device has an air flap mechanism controlled by an air flap actuator, and an inverter for controlling the rotation speed of a blower motor, and has a displacement sensor, linked with the air flap actuator and for controlling the output frequency of the inverter. A program controller of the electronic control device instructs the air flap actuator to control the opening position of the air flap mechanism according to the requirements of a combustion load. The inverter regulates, according to a signal with respect to the opening position of the air flap mechanism and detected by the displacement sensor, the frequency output to the blower motor so as to control the rotation speed of the blower motor. | 11-21-2013 |
20130319298 | FLUIDIZED BED GASIFICATION FURNACE - A fluidized bed gasification furnace includes a control device that identifies a defective fluidization spot of a fluidized bed based on distribution of temperatures detected by a plurality of temperature sensors, temporarily increases an amount of supplied combustion gas to air boxes located below the identified defective fluidization spot, and increases a speed of discharge of noncombustibles and a fluidization medium discharged by an extruder. | 12-05-2013 |
110190000 | Temperature sensor | 10 |
20090272300 | METHOD AND APPARATUS FOR CONTROLLING COMBUSTION IN OXYGEN FIRED BOILER - Provided are a method and an apparatus for controlling combustion in an oxygen fired boiler which are easily applicable to an existing air fired boiler for easy and stable control of the combustion. | 11-05-2009 |
20100101462 | Oxyfuel Boiler and a Method of Controlling the Same - An oxyfuel boiler | 04-29-2010 |
20100162930 | SOLID-FUEL BURNER, COMBUSTION DEVICE USING SOLID-FUEL BURNER, AND METHOD OF OPERATING THE COMBUSTION DEVICE - Provided is a solid fuel burner ( | 07-01-2010 |
20120079970 | Dry Distillation and Gasification Typed Incinerator - Provided is a dry distillation and gasification typed incinerator capable of saving time and fuels required for combustion aid. In a first phase when a waste material A stored in a dry distillation furnace | 04-05-2012 |
20130133560 | NON-CATALYTIC BIOMASS FUEL BURNER AND METHOD - The present invention relates to a non-catalytic biomass burner that may be used to burn a variety of fuel types at high efficiencies. The burner may include a cylindrical combustion chamber with an auxiliary igniter to heat the fuel in the combustion chamber until desirable combustion temperatures are reached. Fuel may be added to the chamber via a fuel feed assembly, and the rate of fuel addition to the chamber by the fuel feed assembly may be controlled by a computer. A fan located on the distal side of a flue pipe from the chamber may also be provided that pulls air into the chamber through one or more air inlets that are designed to encourage cyclonic air and exhaust flow in the chamber. Methods are further provided for controlling the manner of operation of the burner by a computer that may be instructed by a computer program code. | 05-30-2013 |
20130319299 | Boiler - In a boiler, a heat exchanger provided in one of two flow paths formed by partitioning a downstream portion of a flow path for exhaust gas discharged from a furnace has a smaller total heat transfer area than a heat exchanger provided in the other of the two flow paths; the exhaust gases discharged from the flow paths to outside the boiler are introduced, without being mixed, into an air heater downstream of the boiler; and, in the air heater, the heat of the exhaust gases is transferred to the primary air and the secondary air so as to heat combustion air. | 12-05-2013 |
20130327257 | FLUIDIZED BED FURNACE - Provided is a fluidized bed furnace for heating waste to extract a combustible gas from the waste, including: a plurality of wind boxes arranged on a lower side of a bottom wall of a furnace body to blow a fluidizing gas into the fluidized bed; a plurality of temperature detection sections disposed at respective positions allowing detection of temperatures of an upper position and a lower position vertically spaced in a first region, and allowing detection of temperatures of upper and lower positions vertically spaced in a second region; and a control section operable, based on the temperatures detected by the temperature detection sections, to adjust an air ratio of the fluidizing gas to be fed to each of the wind boxes, so that the temperature of the fluidized bed is raised in a direction from the first region toward the second region. | 12-12-2013 |
20140076209 | INDUSTRIAL FURNACE - The dry oxygen content in the exhaust of an industrial furnace may be controlled to | 03-20-2014 |
20140174329 | CONTROLLED TEMPERATURE ION TRANSPORT MEMBRANE REACTOR - The controlled temperature ion transport membrane reactor is a combustion-type ion transport membrane reactor for combusting a hydrocarbon fuel with oxygen. The reactor includes an oxygen permeable ion transport membrane for separating oxygen from air. In order to control temperature within the reactor, a thermally conductive plate is positioned between a mixing passage, where a diluent gas and the permeated oxygen are mixed, and a reaction zone. The reaction zone is in fluid communication with the mixing passage and a fuel chamber through a porous plate for combusting the hydrocarbon fuel with the oxygen. | 06-26-2014 |
20140373762 | OXYFUEL COMBUSTION BOILER SYSTEM - A combined heat exchanger including a flue gas cooler heat-transfer unit supplied with cooling fluid by a supply pump and an upstream GGH heat-transfer unit for circulation of circulating fluid with a downstream GGH by a circulation pump is arranged at an outlet of a gas air heater for heat exchange of flue gas from a boiler body for oxyfuel combustion with recirculation flue gases. A low-low temperature ESP is arranged at an outlet of the combined heat exchanger. A heat-exchange-duty adjustment device is arranged to regulate heats exchanged in the heat-transfer units in the heat exchanger such that at least flue gas temperature at the inlet of the low-low temperature ESP is kept to an inlet set temperature. | 12-25-2014 |