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3results about "Beating/refining control devices" patented technology

Monitoring and controlling of refining of fibrous pulp

ActiveEP3733959B1Beating/refining control devicesPulp properties modificationFiberMechanical engineering
According to an example aspect of the present invention, there is provided a method for monitoring and controlling of refining of a fibrous pulp, the method comprising: capturing at least one image of a pulp sample; determining amount of all fibres or non-fibrillated fibres in the at least one image; determining amount of fibrillated fibres in the at least one image; determining relation between fibrillated fibres and all fibres or non-fibrillated fibres in the pulp on the basis of the amount of fibrillated fibres and the amount of all fibres or non-fibrillated fibres in the at least one image; generating a control parameter on the basis of the determined relation between fibrillated fibres and all fibres or non-fibrillated fibres in the pulp, and controlling fibre refining by at least one pulp refining device on the basis of the control parameter.
Monitoring and controlling of refining of fibrous pulp
Monitoring and controlling of refining of fibrous pulp
Monitoring and controlling of refining of fibrous pulp
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Owner:VALMET TECH INC

Method of operating a refiner and refiner

PendingCN122100285ABeating/refining control devicesWood working apparatusFiberMechanical engineering
The invention relates to a method for operating a refiner (1), wherein grinding plates (2) are rotated relative to one another by means of a drive in order to comminute organic fibrous material located between the grinding plates (2) and / or to separate fibres, in order to form a product consisting of fibre material and / or separated fibres. In order to achieve a particularly efficient method, the invention provides that the quality, in particular the homogeneity, of the product should be detected and the relative rotational speed of the grinding plates (2) should be changed in dependence on the quality. The invention also relates to a refiner (1) for the fibre formation of organic fibrous material in order to obtain a product consisting of fibre material and / or separated fibres, wherein the refiner (1) has grinding plates (2) which can be rotated relative to one another by means of a drive.
Method of operating a refiner and refiner
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Owner:ANDRITZ AG

Method for operating a refiner and refiner

PendingEP4752275A1Beating/refining control devicesPaper-making machines
The invention relates to a method for operating a refiner (1), wherein grinding plates (2) are rotated relative to one another by means of a drive in order to comminute organic fibrous material located between the grinding plates (2) and / or to separate fibers, forming a product of fibrous material and / or separated fibers. To achieve a particularly efficient process, the invention provides that a quality of the product, in particular homogeneity, is detected and the relative rotational speed of the grinding plates (2) is changed depending on the quality. The invention further relates to a refiner (1) for fibrous organic fibrous material to obtain a product of fibrous material and / or separated fibers, wherein the refiner (1) comprises grinding plates (2) which are rotatable relative to one another by means of a drive.
Method for operating a refiner and refiner
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Owner:ANDRITZ AG

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Material analysis Cellulose pulp after-treatment modification