Patent application number | Description | Published |
20100024599 | METHOD AND DEVICE FOR PRODUCING MOLTEN MATERIAL - A method for producing molten material, wherein oxygen, reducing agents and iron that has been reduced in a reduction reactor are introduced into a melter gasifier. The reducing agent is gasified with the oxygen and the heat thereby produced melts the reduced iron. Cupola gas from the melter gasifier is used at least as a portion of the reduction gas, and reacted top gas is withdrawn from the reduction reactor. The aim of the invention is to increase energy efficiency and raw material efficiency as well as productivity while at the same time obtaining metallurgically improved properties of the product. For this purpose, at least a portion of the top gas is branched off from the line for the withdrawal of the top gas from the reduction reactor and is returned via at least one return line leading to the melter gasifier and is introduced into the melter gasifier. | 02-04-2010 |
20100043599 | METHOD AND DEVICE FOR PRODUCING MOLTEN MATERIAL - In a method for the production of molten metal, oxygen, a reducing agent and iron reduced in a reduction reactor are introduced into a melt gasifier, the reducing agent is gasified with oxygen and reduced iron is melted by means of the heat which occurs, the cupola gas being used as at least a fraction of the reduction gas. Reacted top gas is drawn off from the reduction reactor. | 02-25-2010 |
20100133723 | METHOD FOR PRODUCING MOLDINGS - A method for producing moldings, in particular briquettes, from fine-grained to medium-grained mixed material using organic binders. In a first stage, the mixed material is heated to a temperature necessary for the molding operation. In a second, atmospherically separate stage, mixing of the mixed material with binder is performed, as well as downstream steps of the process. The method allows hazardous emissions to be avoided. | 06-03-2010 |
20100313711 | METHOD FOR THE MELTING OF PIG IRON WITH THE RECIRCULATION OF BLAST FURNACE GAS AND WITH THE ADDITION OF HYDROCARBONS - A method for the melting of pig iron in a blast furnace ( | 12-16-2010 |
20110030507 | PROCESS AND APPARATUS FOR PRODUCING LIQUID PIG IRON OR LIQUID PRIMARY STEEL PRODUCTS - A process and an apparatus for producing liquid pig iron or liquid primary steel products from charge materials formed by iron ores and additions. The charge materials are subjected to a further reduction in a reducing zone ( | 02-10-2011 |
20110146485 | PROCESS GAS PURIFICATION DEVICE FOR A MELT REDUCTION SYSTEM FOR EXTRACTING PIG IRON - Process gas purification device ( | 06-23-2011 |
20110170114 | METHOD OF CONTROLLING A TRANSFORMATION PROCESS OF CHARGE MATERIAL TO A PRODUCT - A method for controlling a transformation process in which the conversion of charge materials to a product takes place along a transformation interface from the crystal and/or grain and/or phase and/or pore surface into the charge material, wherein one or more chemical elements in the charge materials is released and/or incorporated and/or rearranged and wherein the conversion of the charge materials takes place along advancing transformation interfaces. The charge materials are identified on the basis of at least one optical, in particular microscopic, analysis with respect to their phases and/or phase components and/or their phase morphology, structure, texture and/or their chemical composition. On the basis of these variables, reference functions for the charge materials, which describe the conversion of the charge materials in the process, are assigned and used for establishing the process parameters of the transformation process. | 07-14-2011 |
20110283837 | METHOD AND DEVICE FOR OPERATING A SMELTING REDUCTION PROCESS - In a method and a device for operating a smelting reduction process, at least part of an export gas from a blast furnace or a reduction unit is thermally utilized in a gas turbine and the exhaust gas of this gas turbine is used in a waste heat steam generator to generate steam. The remaining part of the export gas is fed to a CO2 separation apparatus, the tail gas thereby obtained being fed to a waste heat steam generator and burned for additional steam generation. The combustible components of the tail gas are sent for thermal utilization in a steam generator, so that the overall energy balance of the thermal use of the export gas is improved. In addition, a further part of the export gas is qualitatively improved by the CO2 separation apparatus, so as to generate a high-quality reduction gas which can be supplied for metallurgical use. | 11-24-2011 |
20110290075 | Nozzle for Injecting Gas Containing Oxygen Into a Pig Iron Device Having an Injector Insertion Pipe - An injector insert pipe is arranged in the gas channel of a nozzle for injecting oxygen-containing gas into a pig iron production unit, wherein an interspace which surrounds the pipe is present over the entire pipe length between the wall of the gas channel and the pipe outer wall . The pipe extends at least as far as the nozzle end face which contains the mouth of the gas channel. The pipe space is connected to an oxygen-containing gas feed line, and the interspace is connected to a protective gas supply line. In a process, oxygen-containing gas is fed into the pipe space, which after it has flowed through the pipe, enters the production unit at an entry velocity, and the interspace is simultaneously flowed through by a gas which exits into the production unit at an exit velocity, wherein the entry velocity is greater than the exit velocity. | 12-01-2011 |
20120020868 | PROCESS AND INSTALLATION FOR PRODUCING SUBSTITUTE GAS - A process and an installation for reducing particulate material containing iron oxide are shown, wherein the material containing iron oxide is at least partially reduced with reducing gas in a reducing zone and the waste gas produced during the reduction is drawn off and subsequently subjected to CO | 01-26-2012 |
20120237421 | Method for Removing CO2 From Exhaust Gases, Such as Exhaust Gases From Plants for Producing Raw Iron or Exhaust Gases From Syngas Plants - A method for the removal of CO | 09-20-2012 |
20130154166 | Method for Increasing the Penetration Depth of an Oxygen Stream - A method and device are disclosed for automatically evaluating a delivery system in respect of the energy efficiency and emissions efficiency thereof. The method may include: determining a service level for the delivery system according to an energy intensity and an evaluation relevance of the particular delivery system, detecting energy data and emissions data of the delivery system corresponding to the determined service level of the delivery system, and calculating at least one indicator based on the detected energy data and emissions data and/or based on data for the energy management and environmental management of the delivery system for evaluating the delivery system with respect to the energy efficiency and emissions efficiency thereof. | 06-20-2013 |
20140110891 | METHOD AND DEVICE FOR CHARGING COAL-CONTAINING MATERIAL AND IRON CARRIER MATERIAL - A melter gasifier of a smelting reduction installation is charged by bringing together coal-containing material in lump form and iron carrier material (which may be hot) before and/or while they enter the melter gasifier. The ratio of the combined amounts of iron carrier material and coal-containing material in lump form is variable. The combined amounts of iron carrier material and coal-containing material in lump form are distributed over the cross section of the melter gasifier by a dynamic distributing device, and the ratio of the combined amounts of the iron carrier material and coal-containing material in lump form is set depending on the position of the dynamic distributing device. | 04-24-2014 |
20140138883 | MELTING REDUCTION ASSEMBLY AND METHOD FOR OPERATING A MELTING REDUCTION ASSEMBLY - A melting reduction assembly ( | 05-22-2014 |
20140361472 | METHOD AND DEVICE FOR OPERATING A SMELTING REDUCTION PROCESS - In a method and a device for operating a smelting reduction process, at least part of an export gas from a blast furnace or a reduction unit is thermally utilized in a gas turbine and the exhaust gas of this gas turbine is used in a waste heat steam generator to generate steam. The remaining part of the export gas is fed to a CO | 12-11-2014 |