CN213708960U - High-concentration pulping machine abrasive disc suitable for agricultural straw bio-mechanical pulp - Google Patents
High-concentration pulping machine abrasive disc suitable for agricultural straw bio-mechanical pulp Download PDFInfo
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- CN213708960U CN213708960U CN202022185777.3U CN202022185777U CN213708960U CN 213708960 U CN213708960 U CN 213708960U CN 202022185777 U CN202022185777 U CN 202022185777U CN 213708960 U CN213708960 U CN 213708960U
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Abstract
The utility model discloses a high-concentration pulping machine grinding disc suitable for agricultural straw bio-mechanical pulp, which comprises a grinding disc body with a fan-shaped structure, wherein one surface of the grinding disc body is provided with a plurality of grinding tooth groups, each grinding tooth group comprises a plurality of grinding teeth, the plurality of grinding teeth in each grinding tooth group are arranged in a line along a straight line, and the distance between two adjacent grinding teeth is 1.5mm-1.8 mm; the straight line where each grinding tooth group is located and one fan edge of the grinding plate body are arranged in an alpha angle; a groove is arranged between every two adjacent grinding tooth groups, and the width of the groove is gradually narrowed from the root part of the grinding sheet body to the outer edge; the slurry blocking ring obliquely penetrates through part of the grinding teeth and the grooves, and controls the passing amount of slurry in the grinding sheet together with the grinding teeth and the grooves; the utility model can improve the crushing effect of the grinding teeth, reduce the energy consumption of grinding and improve the grinding efficiency; can reasonably control the flow of the pulp and improve the pulp grinding effect.
Description
Technical Field
The utility model relates to a high concentration fiberizer abrasive disc, specific theory relates to a high concentration fiberizer abrasive disc suitable for agricultural straw bio-mechanical thick liquid belongs to fiberizer technical field.
Background
The high-concentration mill adopts a high-concentration pulping machine with forced feeding. It is suitable for chemical pulp, semi-chemical mechanical pulp, cold soaking process and grinding of fiber board. The grinding plate in the high-consistency refiner is a core component which influences the refining quality and the refining yield. The grinding disc is formed by combining a whole or a group of independent grinding disc units, has a plurality of different structural forms such as a disc-shaped grinding disc, a conical grinding disc, a cylindrical grinding disc and the like, but is matched with one or two groups of movable grinding discs fixed on a rotating disc and fixed grinding discs fixed on a machine body mounting disc in opposite movement. The rotary disc is driven by a power source and can move axially or radially to adjust the gap between the movable and fixed abrasive discs.
In the paper making technology, in the pulping process of mechanical pulp, pulping treatment of two working sections of high-consistency grinding and low-consistency grinding is needed, pulping raw materials for preparing the mechanical pulp are mainly wood, a high-consistency pulping grinding disc used in the prior art mainly treats the mechanical pulp taking the wood as the raw material, and when the existing high-consistency pulping machine treats the mechanical pulp taking agricultural straws as the raw material, the following problems easily occur:
1. the grinding teeth have poor crushing effect on pulp, high pulp grinding energy consumption and low pulp grinding efficiency.
2. In the pulping process, the pulp flow is unreasonable, and the pulping effect is poor.
In view of the above, the prior art is obviously inconvenient and disadvantageous in practical use, and needs to be improved.
SUMMERY OF THE UTILITY MODEL
The technical problem to be solved by the utility model is to provide a high-concentration pulp grinder abrasive disc suitable for agricultural straw bio-mechanical pulp, which can improve the crushing effect of grinding teeth, reduce the energy consumption of pulp grinding and improve the pulp grinding efficiency; can reasonably control the flow of the pulp and improve the pulp grinding effect.
For solving the technical problem, the utility model discloses a following technical scheme: a high-concentration pulp grinder grinding disc suitable for agricultural straw bio-mechanical pulp comprises a grinding disc body with a fan-shaped structure, wherein one surface of the grinding disc body is provided with a plurality of grinding tooth groups, each grinding tooth group comprises a plurality of grinding teeth, the plurality of grinding teeth in each grinding tooth group are arranged in a line along a straight line, and the distance between every two adjacent grinding teeth is 1.5mm-1.8 mm; the straight line where each grinding tooth group is located and one fan edge of the grinding plate body are arranged in an alpha angle; a groove is arranged between every two adjacent grinding tooth groups, and the width of the groove is gradually narrowed from the root part of the grinding sheet body to the outer edge;
the slurry blocking ring obliquely penetrates through part of the grinding teeth and the grooves, and controls the passing amount of slurry in the grinding plate together with the grinding teeth and the grooves.
Furthermore, the number of the slurry blocking rings is three, each slurry blocking ring is composed of a plurality of slurry blocking blocks, the height of each slurry blocking block is the same as that of the grinding teeth, the slurry blocking blocks are arranged in the grooves, and two ends of each slurry blocking block are fixedly connected with the side walls of the grinding teeth on two sides of each groove; the slurry blocking block and the grinding teeth (2) are arranged in a beta angle.
Furthermore, the cross section of the grinding tooth is rectangular, and the width of the grinding tooth is 2.7-3.2 mm; the height of the grinding teeth is 6-6.4 mm.
Further, the α angle is 20 to 40 °.
Further, the beta angle is 55-75 deg.
Further, the maximum width of the groove is 5.6mm, and the minimum width is 2.5 mm.
Furthermore, one end of the grinding sheet body, which is close to the root, is provided with two fixing holes, and the two fixing holes are arranged at intervals; the fixing holes are used for fixing the grinding plates on the high-concentration pulping machine.
The utility model adopts the above technical scheme after, compare with prior art, have following advantage:
the utility model can improve the crushing effect of the grinding teeth, reduce the energy consumption of grinding and improve the grinding efficiency; can reasonably control the flow of the pulp and improve the pulp grinding effect.
The present invention will be described in detail with reference to the accompanying drawings and examples.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
fig. 2 is a partial cross-sectional view of the present invention;
in the figure, the position of the upper end of the main shaft,
1-grinding plate body, 2-grinding teeth, 3-grooves, 4-fixing holes and 5-slurry blocking blocks.
Detailed Description
In order to clearly understand the technical features, objects, and effects of the present invention, embodiments of the present invention will be described with reference to the accompanying drawings.
Example 1
As shown in figures 1-2 jointly, the utility model provides a high concentration fiberizer abrasive disc suitable for agricultural straw bio-mechanical thick liquid, including abrasive disc body 1, abrasive disc body 1 is fan-shaped lamellar body structure, and a plurality of abrasive disc bodies 1 enclose into the circular shape mill.
One side of the grinding disc body 1 is provided with a plurality of grinding tooth groups, each grinding tooth group comprises a plurality of grinding teeth 2 which are uniformly arranged at intervals, the plurality of grinding teeth 2 in each grinding tooth group are arranged in a line along a straight line, and the distance between every two adjacent grinding teeth 2 is 1.5mm-1.8 mm; the straight line of each grinding tooth group and one fan edge of the grinding plate body 1 form an angle alpha, and the angle alpha is 20-40 degrees.
A groove 3 is arranged between two adjacent grinding tooth groups, and the width of the groove 3 is gradually narrowed from the root part of the grinding plate body 1 to the outer edge; such a structure can gradually slow down the speed of the fiber bundles passing through the grooves 3 from the root to the outer edge of the refiner plate body 1 during refining, so that the grinding teeth 2 gradually transit from coarse grinding to fine grinding to the fiber bundles passing through the grooves 3; specifically, the width of the groove 3 close to the root of the grinding plate body 1 is wide, the passing speed of the fiber bundles in the groove is high, and the grinding teeth 2 close to the root on the grinding plate body 1 have a defibering effect on the fiber bundles and are used as rough grinding areas; the grooves 3 near the edge of the refiner plate body 1 are narrow in width, the passing speed of the fiber bundles in the grooves is slow, and the grinding teeth 2 near the edge on the refiner plate body 1 are ground and refined to form a refining area.
The cross section of the grinding tooth 2 is rectangular, and the width of the grinding tooth 2 is 2.7-3.2 mm; the height of the grinding teeth 2 is 6-6.4 mm.
The maximum width of the groove 3 is 5.6mm, and the minimum width is 2.5 mm.
One end of the grinding sheet body 1 close to the root is provided with two fixing holes 4, and the two fixing holes 4 are arranged at intervals; the fixing holes 4 are used for fixing the grinding plate on the high-consistency pulping machine.
The grinding disc also comprises three slurry baffle rings, the three slurry baffle rings obliquely penetrate through part of the grinding teeth 2 and the grooves 3, and the slurry baffle rings, the grinding teeth 2 and the grooves 3 control the passing amount of slurry in the grinding disc; each slurry blocking ring is composed of a plurality of slurry blocking blocks 5, the height of each slurry blocking block 5 is the same as that of the grinding teeth 2, the slurry blocking blocks 5 are arranged in the grooves 3, and two ends of each slurry blocking block 5 are fixedly connected with the side walls of the grinding teeth 2 on two sides of each groove 3; the slurry blocking block 5 and the grinding teeth 2 are arranged at a certain angle; the included angle beta between the pulp blocking block 5 and the grinding teeth 2 is 55-75 degrees.
The utility model discloses a theory of operation:
when the grinding disc is used, a plurality of grinding discs are surrounded into a circular grinding disc and are installed on a high-concentration pulping machine, the gap between the two grinding discs is adjusted, agricultural straw materials which are subjected to thread rolling treatment and become thick and large fiber bundles firstly enter from the root of the grinding disc body along the wider part of the groove 3 and gradually flow to the narrower part of the groove at the edge of the grinding disc body in the rotation process of the grinding discs, and in the process, the agricultural straw materials are gradually defibered into single fibers after the mechanical defibering and crushing of the grinding teeth and the friction treatment among the fibers.
The utility model can improve the crushing effect of the grinding teeth, reduce the energy consumption of grinding and improve the grinding efficiency; can reasonably control the flow of the pulp and improve the pulp grinding effect.
The foregoing is illustrative of the best mode of the invention, and details not described herein are within the common general knowledge of a person of ordinary skill in the art. The protection scope of the present invention is subject to the content of the claims, and any equivalent transformation based on the technical teaching of the present invention is also within the protection scope of the present invention.
Claims (7)
1. The utility model provides a high concentration fiberizer abrasive disc suitable for agricultural straw bio-mechanical thick liquid which characterized in that: the grinding disc comprises a grinding disc body (1) with a fan-shaped structure, wherein one surface of the grinding disc body (1) is provided with a plurality of grinding tooth groups, each grinding tooth group comprises a plurality of grinding teeth (2), the plurality of grinding teeth (2) in each grinding tooth group are arranged in a line along a straight line, and the distance between every two adjacent grinding teeth (2) is 1.5-1.8 mm; the straight line where each grinding tooth group is located and one fan edge of the grinding plate body (1) are arranged in an alpha angle; a groove (3) is arranged between every two adjacent grinding tooth groups, and the width of the groove (3) is gradually narrowed from the root part of the grinding sheet body (1) to the outer edge;
the grinding plate also comprises a pulp blocking ring, wherein the pulp blocking ring obliquely penetrates through part of the grinding teeth (2) and the grooves (3), and the pulp blocking ring, the grinding teeth (2) and the grooves (3) control the passing amount of pulp in the grinding plate.
2. A refiner plate of a high consistency refiner suitable for agricultural straw bio-mechanical pulp as claimed in claim 1, wherein: the number of the slurry blocking rings is three, each slurry blocking ring is composed of a plurality of slurry blocking blocks (5), the height of each slurry blocking block (5) is the same as that of the grinding teeth (2), each slurry blocking block (5) is arranged in the corresponding groove (3), and two ends of each slurry blocking block are fixedly connected with the side walls of the grinding teeth (2) on two sides of the corresponding groove (3); the slurry blocking block (5) and the grinding teeth (2) are arranged in a beta angle.
3. A refiner plate of a high consistency refiner suitable for agricultural straw bio-mechanical pulp as claimed in claim 1, wherein: the cross section of the grinding tooth (2) is rectangular, and the width of the grinding tooth (2) is 2.7-3.2 mm; the height of the grinding teeth (2) is 6-6.4 mm.
4. A refiner plate of a high consistency refiner suitable for agricultural straw bio-mechanical pulp as claimed in claim 1, wherein: the alpha angle is 20-40 deg.
5. A refiner plate of a high consistency refiner suitable for agricultural straw bio-mechanical pulp as claimed in claim 2, wherein: the beta angle is 55-75 deg.
6. A refiner plate of a high consistency refiner suitable for agricultural straw bio-mechanical pulp as claimed in claim 1, wherein: the maximum width of the groove (3) is 5.6mm, and the minimum width is 2.5 mm.
7. A refiner plate of a high consistency refiner suitable for agricultural straw bio-mechanical pulp as claimed in claim 1, wherein: one end, close to the root, of the grinding sheet body (1) is provided with two fixing holes (4), and the two fixing holes (4) are arranged at intervals; the fixing holes (4) are used for fixing the grinding plate on the high-concentration pulping machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022185777.3U CN213708960U (en) | 2020-09-29 | 2020-09-29 | High-concentration pulping machine abrasive disc suitable for agricultural straw bio-mechanical pulp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022185777.3U CN213708960U (en) | 2020-09-29 | 2020-09-29 | High-concentration pulping machine abrasive disc suitable for agricultural straw bio-mechanical pulp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213708960U true CN213708960U (en) | 2021-07-16 |
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ID=76796045
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022185777.3U Active CN213708960U (en) | 2020-09-29 | 2020-09-29 | High-concentration pulping machine abrasive disc suitable for agricultural straw bio-mechanical pulp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213708960U (en) |
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2020
- 2020-09-29 CN CN202022185777.3U patent/CN213708960U/en active Active
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