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Grinding table of disc grinder for preparing synthetic fiber pulp

A technology for synthetic fibers and disc refiners, applied in the field of disc refiners, can solve the problems of complex manufacturing process, influence on pulp quality, short service life, etc., to increase grinding time, improve the degree of microfibrillation, and reduce the cutting effect. Effect

Active Publication Date: 2013-02-13
BLUESTAR CHENGDU NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The problems of using the above-mentioned grinding discs are: 1. The edges and corners of the grinding teeth are right angles. When the grinding disc is working, the grinding teeth have a strong cutting effect on the fibers, which affects the quality of the pulp.
2. The grinding teeth and the base of the grinding plate are processed separately, and then the grinding teeth are welded to the base. The manufacturing process is complicated, the teeth are easy to break, and the service life is short.
The problems of using the above-mentioned grinding discs are: 1. The teeth of the grinding teeth are all spur-shaped, which will have a strong cutting effect on the fibers and affect the quality of the pulp.

Method used

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  • Grinding table of disc grinder for preparing synthetic fiber pulp
  • Grinding table of disc grinder for preparing synthetic fiber pulp

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] A disc refiner grinding plate for preparing synthetic fiber pulp, including a grinding disc, with a plurality of grooves on the working surface of the grinding disc, the grooves are distributed in a multi-layer concentric circle around the center of the grinding disc, and each layer of concentric circles The grooves are evenly distributed, the grinding discs between two adjacent grooves on the same circumference form grinding teeth, and the gap between any adjacent two layers forms a baffle.

[0037] In the present invention, the grinding tooth includes a plane part formed by the working surface of the grinding disc and an arc-shaped surface part where one side meets the plane part and the other side meets the groove, that is, the groove meets the grinding tooth in an arc shape noodle. The groove forms an angle of 5°C with the diameter of the grinding disc.

[0038] A circular concave feeding channel around the feeding hole is arranged at the feeding hole of the grindi...

Embodiment 2

[0041] A disc refiner grinding plate for preparing synthetic fiber pulp, including a grinding disc, with a plurality of grooves on the working surface of the grinding disc, the grooves are distributed in a multi-layer concentric circle around the center of the grinding disc, and each layer of concentric circles The grooves are evenly distributed, and the grinding discs between two adjacent grooves on the same circumference form grinding teeth, and the gap between any two adjacent layers forms a continuous baffle, that is, a circular baffle .

[0042] In the present invention, the groove and the diameter of the grinding disc form an included angle of 20°C. A circular concave feeding channel around the feeding hole is arranged at the feeding hole of the grinding disc. The inner side of the feeding channel communicates with the feeding hole, and the outer side communicates with the groove on the first layer outside the center of the grinding disc.

[0043] Set the inclination dire...

Embodiment 3

[0045] A disc refiner grinding plate for preparing synthetic fiber pulp, including a grinding disc, with a plurality of grooves on the working surface of the grinding disc, the grooves are distributed in a multi-layer concentric circle around the center of the grinding disc, and each layer of concentric circles The grooves are evenly distributed, the grinding discs between two adjacent grooves on the same circumference form grinding teeth, and the gap between any adjacent two layers forms a baffle.

[0046] In the present invention, the grinding tooth includes a plane part formed by the working surface of the grinding disc and an arc-shaped surface part where one side is connected to the plane part and the other side is connected to the groove, that is, the plane part is connected to the groove. The curved surface and the curvature of the curved surface can be adjusted by those skilled in the art according to the above-mentioned records in actual production.

[0047] Set the g...

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Abstract

The invention discloses a grinding table of a disc grinder for preparing synthetic fiber pulp, which comprises a grinding plate, wherein the working surface of the grinding plate is provided with a plurality of grooves; the grooves are distributed in a multiple-layer concentric circle mode around the grinding plate; the grooves are evenly distributed on each layer of the concentric circle; grinding teeth are formed on the grinding plate between every two adjacent grooves on the same circle; and a pulp baffle plate is formed at the gap between any two adjacent layers. The invention can prolong the the residence time of materials in the disc grinder, weaken the cut-off function of the grinding table, enhance the effects of crushing, kneading and fibrillation on the fibers, and greatly improve the microfibrillation degree of the pulp fibers.

Description

technical field [0001] The invention relates to a pulping equipment, in particular to a disc refiner disc suitable for preparing high-performance synthetic fiber pulp. Background technique [0002] In the current technology, the refining equipment mainly includes disc mills, conical mills, and cylindrical mills in form. Among them, disc mills with disc-shaped discs were used earlier and more widely. Disc mills can be divided into three categories according to their grinding discs: single disc mill consisting of 1 moving disc and 1 fixed disc; Composition of three disc mills. In various refiners, the disc is the core component of the disc refiner. Disc refiners achieve outstanding results in a variety of natural and man-made fiber applications. However, the existing grinding discs are not suitable for the preparation of high-performance synthetic fiber pulp. High-performance fiber has the characteristics of high strength, high modulus and high temperature resistance. To ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D21D1/30
Inventor 王凤德彭涛刘克杰
Owner BLUESTAR CHENGDU NEW MATERIALS
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