Vertical three-disc type disc mill with good pulping effect

Abstract

The invention relates to the technical field of biological engineering equipment, and discloses a vertical three-disc type disc mill with a good pulping effect, the vertical three-disc type disc mill comprises a fixing frame and a lifting table, and the lifting table is located under the fixing frame. The movable millstone and the bottom millstone are arranged in the V shape, so that when the movable millstone rotates to generate large centrifugal force, on one hand, the gravity of slurry overcomes the effect of the centrifugal force, the time of the slurry in a grinding area is prolonged, and the grinding effect is improved; through the arrangement that the fixed millstone and the movable millstone are arranged, steam generated in the grinding process gradually rises along the bottom faces of the fixed millstone and the movable millstone, the discharging resistance is reduced, the discharging speed is increased, and the situation that large loads are generated due to the fact that the steam stays is avoided, and meanwhile gaps between the fixed millstone and the movable millstone and gaps between the movable millstone and the bottom millstone are gradually reduced from bottom to top; the abrasive materials entering the fixed millstone and the movable millstone and between the movable millstone and the bottom millstone are further blocked, and the time of the abrasive materials in the gap is prolonged.

Description

technical field [0001] The invention relates to the technical field of bioengineering equipment, in particular to a vertical three-disk disc refiner with good pulp refining effect. Background technique [0002] Disc refiner, also known as disc machine or disc refiner, is a continuous beating equipment in the paper industry, consisting of a cast iron casing and a pair or three metal or grinding stone discs with knife patterns on the surface, Slurry enters between the disks by gravity or pressure, is subjected to the friction of the rotating disks, the beating effect of rubbing, and is discharged from the periphery of the grinding disks by centrifugal force. However, there are some deficiencies in the use of existing disk refiners, as follows: [0003] When using a disk refiner to grind high-consistency pulping, although the pulp fibers after refining are less cut, fiber bundles are less, and the water filtration performance is good, due to the low water content of the pulp un...

AI Technical Summary

Problems solved by technology

[0003] When using a disk refiner to grind high-consistency pulping, although the pulp fibers after refining are less cut, fiber bundles are less, and the water filtration performance is good, due to the low water content of the pulp under high-consistency conditions, it cannot be fully and timely. It absorbs a large amount of heat generated by friction during refining, and generates a large amount of steam and air bubbles in the refining area. The steam generates a large thrust between the grinding discs, causing increased impact load on the grinding discs, causing deformation of the grinding discs and increasing the gap. , leading to poor refining effect, or deformation of the rotating shaft, causing the grinding disc on the other side to collide, resulting in contact between the tooth surfaces and severe wear, increasing maintenance costs;

[0004] When the grinding disc rotates at high speed, it will generate a large centrifugal force. The fixed grinding disc and the moving grinding disc of the currently used disc refiner are generally arranged symmetrically, which leads to insufficient time for the slurry to stay in the refining area, resulting in insufficient refining. poor

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