Disc refiner constant pressure pulping method and device

A disk refiner and pressure technology, which is applied in pulp beating/refining methods, textiles and papermaking, fiber raw material processing, etc., can solve the problem of increased working pressure, stable quality, unfavorable parameters as quality control, and no consideration, etc. problem, to achieve the effect of reducing energy consumption, high quality and stability, and reducing cut-off effect

Inactive Publication Date: 2003-11-19
SOUTH CHINA UNIV OF TECH
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  • Abstract
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AI Technical Summary

Problems solved by technology

In the existing beating technology, the strength and quality of the beating action are mainly adjusted by adjusting the distance between the grinding discs. The gap between the moving plate and the fixed plate is set in advance before the disc refiner works, and is mechanically adjusted. or hydraulic methods to ensure that the disc refiner remains at this set value during work. This fixed-distance beating method continues from low-consistency beating to medium- and high-consistency beating, without considering the medium- and high-consistency beating. Compared with the low-consistency beating, the beating mechanism has undergone fundamental changes. Since the medium- and high-consistency beating is not mainly based on the direct mechanical action of the grinding discs on the fibe

Method used

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  • Disc refiner constant pressure pulping method and device
  • Disc refiner constant pressure pulping method and device
  • Disc refiner constant pressure pulping method and device

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Embodiment

[0021] figure 1 A specific embodiment of the present invention is shown, by figure 1 It can be seen that the disc mill constant pressure beating device of the present invention includes a static disc 1, a moving disc 2, a main shaft 3, an oil cylinder 4, a piston 5, a set screw 6, a limit nut 7, a thrust cylinder 8, etc., the static disc 1 and the moving disc 2 are arranged oppositely, the grinding area is between the two discs, the moving disc 2 is connected to the main shaft 3, the piston 5 is installed in the oil cylinder 4 and positioned outside the thrust cylinder 8, and the thrust cylinder 8 is positioned and sleeved outside the main shaft 4 and connected with the pressure The control components are connected, and the limit nut 7 is sleeved on the thrust cylinder 8 and connected with the thrust cylinder 8 through the set screw 6. One end of the limit nut 7 is connected to the end cover 9 of the oil cylinder 4, and its function is to limit the main shaft. 3 The maximum d...

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PUM

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Abstract

A constant-pressure beating method features that the pressure in grinding area is constant and the beating intensity is controlled by the pressure in grinding area. Its constant-pressure beating apparatus is composed of moving disk, static disk, mainshaft, hydraulic cylinder, piston, push barrel and pressure control module. Its advantages are high pulp quality and low energy consumption.

Description

technical field [0001] The invention relates to disc refiner beating technology, in particular to a disc refiner constant pressure beating method and a device thereof. Background technique [0002] For the paper industry, medium and high-consistency beating technology is more and more widely used. During medium and high-consistency beating, due to the high concentration of pulp, the fiber is no longer in the grinding area of ​​the disc refiner like low-consistency beating. The beating effect is caused by the direct mechanical action on the fiber, but the beating effect on the fiber itself is caused by the friction between the fibers, such as dissolving, splitting, brooming and fibrillation, and the direct effect of the grinding disc on the fiber is secondary. s position. In the existing beating technology, the strength and quality of the beating action are mainly adjusted by adjusting the distance between the grinding discs. The gap between the m...

Claims

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Application Information

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IPC IPC(8): D21D1/30
Inventor 李世扬朱小林曹国平
Owner SOUTH CHINA UNIV OF TECH
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