| METSO AUTOMATION OY Patent applications |
| Patent application number | Title | Published |
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| 20120072000 | MODELLING OF A PROPERTY OF PAPER, PAPERBOARD OR BOARD - Properties of an end product, such as paper, paperboard or board, are important for the user of the end product. To be able to manufacture an end product of desired quality, it is important to know what kind of paper pulp used for manufacturing the end product results in a particular kind of property of the end product. Embodiments provide a method and an apparatus for generating a model, which model connects at least one property of the end product with at least one property of the paper pulp. On the basis of the model, also the manufacturing process can be controlled. | 03-22-2012 |
| 20110295407 | METHOD AND APPARATUS FOR CONDITION MONITORING OF VALVE - In the method and apparatus of the invention, the process point is taken into account when the condition and performance of a control valve are monitored. In the condition monitoring of the valve, process measurements are used in addition to measurements inside the valve in such a manner that the process measurements identify the operating point at which the valve operates, and the measurements inside the valve are observed at these operating points to detect changes and to determine the condition of the valve. According to an aspect of the invention, the variables representing the operating point of an industrial process are considered when changes in the friction load of the valve and/or the load factor of the actuator are observed. | 12-01-2011 |
| 20110226434 | METHOD FOR GUIDING WEB PATCHING USING A RE-REELER AND A CORRESPONDING SYSTEM - A method for guiding web patching, using a re-reeler, in connection with a paper machine and an off-line coating machine, in which method a defect map of the web is created on the paper machine, to show deviations some of which are shown on the coating machine, using selected criteria, to the operator, the deviations being patched using the re-reeler, guided by the defect map and preset patching rules. On the coating machine, the virtual location of the selected deviations is monitored through the coating machine and if a possible web break occurs, a deviation is localized relative to the web break, and on the basis of this monitoring, feedback is provided to the patching rules of the re-reeler, in order to optimize them. | 09-22-2011 |
| 20110204232 | DETERMINING THE AMOUNT OF STARCH - The invention relates to a method and arrangement for determining the amount of starch used in surface-sizing a cellulose product. In the solution according to the invention, the amount of starch is determined with a transmission method utilizing IR spectroscopy by using absorption wavelengths of cellulose. Absorption values are measured before adding a coating and after it, whereby the amount of starch is determined from the difference between these absorption values. | 08-25-2011 |
| 20110153230 | DRAINABILITY MEASUREMENT - A measurement device measures a liquid flow discharged from a funnel in a lower branch and/or a side branch. A modelling function is established between liquid flows received with the funnel and/or liquid flows discharged through the lower branch and/or the side branch. In drainability measurement, a sensor measures the flow through a wire out of a measurement chamber at least at two points in time. A processor establishes a parameter descriptive of the drainability from flows measured at the different points in time based on a modelling function stored in a memory. | 06-23-2011 |
| 20110015763 | METHOD FOR CONTROLLING A PROCESS AND FOR MONITORING THE CONDITION OF PROCESS EQUIPMENT, AND AN AUTOMATION SYSTEM - An automation system and a method for controlling a process and for monitoring the condition of process equipment. The method comprises the steps of measuring process signals indicating the condition of the process by means of a first sensor; measuring condition monitoring signals indicating the condition of process components by means of a second sensor; processing the process signals by means of a first I/O module; processing the condition monitoring signals by means of a second I/O module; transmitting the processed process signals obtained from the first I/O module to a process station. The method also comprises the steps of transferring the processed condition monitoring signals obtained from the second I/O module to the same process station; and processing both the said processed process signals and the said processed condition monitoring signals by process station software in the said process station. | 01-20-2011 |
| 20100319866 | MEASURING OF WEB - Optical radiation sources functioning on different optical bands radiate on different optical bands and focus optical radiation on a region in a web surface as pulses in such a manner that illumination areas of the pulses overlap on the plane of the web. At most one optical radiation band is focused on the web from the direction of the normal. The spatial intensity distribution of at least one optical band differs from the uniform distribution and the intensity distributions of at least two different optical bands differ from one another in a predetermined manner. A camera forms still images of the web surface region on each optical radiation band. An image-processing unit determines the surface topography of the web on the basis of the images. In addition, a controller may control the paper manufacturing process on the basis of the determined surface topography. | 12-23-2010 |
| 20100213400 | VALVE - The invention relates to a valve comprising a housing and a closing member arranged in the housing, from which member a shaft protrudes via which the closing member is rotatable in the housing. In order to provide a working and easy-to-use valve, the closing member comprises a sector closing the opening, a flexible sector having a thinner wall than the closing sector, a guiding sector having the same radius (R) as the inner surface of the housing wall, and an open sector. | 08-26-2010 |
| 20100165344 | WEB MEASUREMENT - One measuring part of a traversing measuring unit measures at least one characteristic of a web with a first radiation type from a plurality of measuring locations during a traversing movement at successive moments in time. At least two measuring parts of an array measuring unit measure at least one characteristic of the web with another radiation type during each traversing movement at a plurality of different moments in time by directing the measurement to a plurality of measuring locations in the web at each moment in time. A signal processing unit is arranged to estimate at least one characteristic measured by the traversing measuring unit with at least one measurement of the array measuring unit. | 07-01-2010 |
| 20100116032 | SENSOR ELEMENT AND CONSISTENCY TRANSMITTER - A sensor element for a consistency transmitter for use in measurements of a pulp suspension and coated with a diamond coating. A consistency transmitter for measuring the consistency of a pulp suspension, comprising: a sensor element to be placed in the pulp suspension and provided with a diamond coating; a part provided with equipment for measuring the force/torque effective on the sensor element, for processing the force/torque by computation, and for converting the force/torque to an electrical signal; and a transmitting element, connected to the sensor element and said part, for transmitting the force/torque effective on the sensor element to said part. A method in the manufacture of a sensor element for a consistency transmitter for use in measurements of a pulp suspension, wherein the method comprises the step of coating the sensor element with a diamond coating. | 05-13-2010 |
| 20100024900 | Simple axial locking of a valve shaft - The invention concerns axial locking of a valve shaft to be non-turnably attached to a closing element of a valve, an end of the shaft to be attached to the closing element being machined on two opposite sides in order to fit into a pivot recess formed in the outer perimeter of the closing element. The invention is characterized by a collar part to be fitted to said end of the shaft and to be turned into a locking position, one of the end surfaces of the main part of said collar part having at least one axial projection that fits into the pivot recess of the closing element of the valve when the collar part is in the locking position and the end of the shaft is positioned into the pivot recess of the closing element. | 02-04-2010 |
| 20090301674 | METHOD AND MEASURING DEVICE FOR MEASURING RECYCLED FIBRE PULP - A measuring device is provided that includes a camera, and an image-processing unit and a fractionating pipe. The receives a sample from recycled fibre pulp of a recycled fibre process and arranges the particles of the flowing sample in accordance with particle size. The measuring device processes the sample as at least two fractions according to particle size. The camera images at least one fraction. The image-processing unit receives images imaged by the camera and measures at least one parameter of an added substance in at least one imaged fraction. | 12-10-2009 |
| 20090261526 | FEEDING DEVICE AND FEEDING METHOD - A feeding device comprises at least two feeding units. At least one feeding unit may send a sample towards the measurement device so that the sample passes at least one feeding unit next in the feed direction. | 10-22-2009 |
| 20090141265 | Method and Apparatus for Measuring Color of a Moving Web - A method and an apparatus for measuring color of a moving web. The web is measured by reflectance measurement and transmittance measurement, wherein the reflectance measurement is carried out by illuminating a surface of the web in a measuring area, where on the other side of the web at the measuring area resides a solidly attached backing element and measuring the radiation reflected from the web. The transmittance measurement is carried out by illuminating the web and measuring the radiation transmitted through the web. The radiation measured in the transmittance measurement is transmitted through the backing element. | 06-04-2009 |
| 20090139334 | Method and a System for Monitoring the Condition and Operation of Periodically Moving Objects - A system and a method for calculating a synchronized time average for a measurement signal obtained from an object to be measured and containing periodical variations. In the method: from the periodical variations of the measurement signal a frequency is determined, said frequency corresponding within predetermined limits to a frequency estimated as the periodicity characteristic of the object to be measured; a signal component representing the determined frequency is separated from the measurement signal by filtering, and the filtered signal is used as a synchronizing signal, and the measurement signal is divided into sequences by means of the synchronizing signal, and the synchronized time average of the sequences is calculated. In an example of the method, the rotating frequency or the moving frequency of the object selected as the periodicity characteristic to the object. | 06-04-2009 |
| 20090134351 | CONTROL VALVE - This invention relates to a control valve which comprises a first and a second flow channel ( | 05-28-2009 |
| 20090133845 | METHOD OF CONTROLLING RECYCLED FIBRE LINE, AND RECYCLED FIBRE LINE - Measuring devices measure at least one characteristic of the fibres of recycled fibre pulp and at least one characteristic of ink, and the measuring devices feed the measurement results to controllers of a pulping subprocess and a dispersing subprocess, the controllers performing multivariable-based predictive calculation and optimization of control functions. The controllers of the pulping sub-process and the dispersing subprocess generate control variables on the basis of the measurement results for mechanical and chemical processing of the recycled fibre pulp to be performed in the pulping subprocess and the dispersing subprocess. | 05-28-2009 |
| 20090057439 | Moistening Nozzle of a Paper Web - A moistening nozzle of a paper web comprises a frame into which air and water are fed. Inside the frame there is arranged a water nozzle wherewith water is conducted to an outlet of the moistening nozzle and an air nozzle wherewith air is correspondingly conducted to the outlet. The air nozzle and the water nozzle are arranged one within the other such that the air and the water form water mist that is sprayed out from the moistening nozzle. The air nozzle is provided with a thread that brings the air in swirling motion. The air nozzle comprises a sleeve part with an opening through which air is discharged and in said opening there is arranged a piece that is an integral part of the frame of the moistening nozzle, whereby a part of the moistening nozzle frame forms an inner edge of the air gap provided by said piece and the sleeve part. | 03-05-2009 |
| 20090056412 | METHOD FOR CALIBRATION OF MEASURING EQUIPMENT AND MEASURING EQUIPMENT - A method for the calibration of measuring equipment, and measuring equipment. The measuring equipment comprises at least one first sensor, at least one second sensor and at least one reference piece. When the measuring equipment is calibrated, a moving web is supported against the reference piece and the reference piece with the moving web supported thereto is moved to different distances from the first sensor and the second sensor. Further, a distance between the first sensor and the moving web and a distance between the second sensor and the reference piece is measured at least for two different distances, and the first sensor and the second sensor are calibrated to be uniform in relation to the movement of the reference piece. | 03-05-2009 |
| 20090025893 | Method and Apparatus for Determining the Total Peroxide Content of Pulp Suspension - A method and an apparatus for determining the total peroxide content of a cellulose pulp suspension in the pulp suspension bleaching stage, wherein the bleaching chemical is peroxide. A sample is taken from the pulp suspension, which sample is measured in a measuring device ( | 01-29-2009 |
| 20080308245 | Moistening Nozzle of a Paper Web - A moistening nozzle of a paper web comprises a frame ( | 12-18-2008 |
