Refiner discs, refiners, rotors and refiners

A refiner and rotor technology, used in pulp beating/refining methods, textiles and papermaking, papermaking, etc., can solve problems such as reducing binding capacity, and achieve the effects of reducing cutting, high strength and prolonging service life

Active Publication Date: 2022-02-01
ANDRITZ CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Discs, usually with a refining angle of 90°, have an extremely severe cutting action on fibers, which greatly reduces fiber-to-fiber bonding

Method used

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  • Refiner discs, refiners, rotors and refiners
  • Refiner discs, refiners, rotors and refiners
  • Refiner discs, refiners, rotors and refiners

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0027] figure 1 The main configuration of the double disc refiner is schematically shown. Its refiner rotor comprises: rotor main body 1, and described rotor main body 1 has the driving motor side 4 facing the driving motor when installed and the gap adjustment side 5 facing away from the driving motor (the door side of the refiner is equipped with a gap adjustment device 16 ), both sides of the rotor main body 1 are arranged with grinding discs 2 with several grinding blades 6; two stators, the rotor main body 1 is designed to be suitable for rotating between these two stators 3, wherein, Each of the stators 3 is provided with a grinding disc 2 with a sharpening edge 6 on the side facing the rotor main body 1, whereby the rotor main body 1 on the drive motor side 4 and the gap adjustment side 5 are respectively provided by the rotor The main body 1 and the corresponding stator 3 form a refining zone 7 ; wherein the rotor main body 1 is designed to be adapted to be floatingly...

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PUM

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Abstract

The invention relates to a refiner grinding disc, which is installed on the rotor or stator of the refiner, and at least part of the grinding blade of the grinding disc forms a disc surface formed by the direction of rotation of the rotor of the refiner. The sharpening angle is within the angle range of 105° to 150°. The invention also relates to a rotor comprising such a refiner disc, a refiner and a double disc refiner.

Description

technical field [0001] The invention relates to a refiner plate, a refiner and a rotor. Furthermore, the invention also relates to any type of refiner. Background technique [0002] Low consistency refining of fiber stock suspensions (chemical pulping / physical pulping / recycled fibers) is a routine practice to improve fiber properties and strength. There are various disc pattern styles on the market, especially for the most commonly used type of double disc refiner. However, there are also conical refiners as well as cylindrical refiners on the market. Regardless of shape, all refiners are equipped with grinding discs with sharpened edges and grooves. Loading (reduction of the gap between the refining discs) is used to provide the required refining energy to achieve specific fiber properties. The fiber suspension, typically with a concentration between 4-5%, is pumped through the refining disc and due to the fact that there is at least one rotor and at least one stator, t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D21D1/30
CPCD21D1/306D21D1/30
Inventor 亚历山大·葛帅德
Owner ANDRITZ CHINA
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