Grinding disc of heat dispersion pulping machine

Abstract

The utility model relates to the technical field of pulping machines, and discloses a heat dispersion pulping machine grinding disc which comprises a grinding disc base plate, a pulp inlet end and a pulp outlet end, the pulp inlet end and the pulp outlet end are arranged on the grinding disc base plate, a coarse grinding area, a fine grinding area and an accurate grinding area are sequentially arranged on the grinding disc base plate from the pulp inlet end to the pulp outlet end, and an inclined face groove is formed in the grinding disc base plate. The coarse grinding area is arranged on the inclined surface groove and comprises a plurality of coarse grinding teeth, a first check block and a second check block, and coarse grinding grooves are formed among the coarse grinding teeth. The coarse grinding grooves and the second check blocks are arranged, so that the coarse grinding grooves and the second check blocks can slow down the moving speed of slurry, and the slurry is prevented from directly flowing into the fine grinding area from the coarse grinding area in the coarse grinding process; meanwhile, the slurry can be driven to be multiple times in the coarse grinding area, so that the slurry is crushed more sufficiently, the slurry crushing efficiency of the coarse grinding area is improved, the slurry flows into the fine grinding area and the accurate grinding area more uniformly by arranging a first groove and a second groove, uniform slurry distribution is facilitated, and the grinding effect is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of pulper, more particularly to a hot dispersion pulper grinding plate. BACKGROUND

[0002] The hot dispersion pulper is a key equipment in the pulp and paper industry, mainly used for waste paper pulp treatment, fiber dispersion and impurity removal. Its core function is to improve the pulp quality and optimize the subsequent process flow through mechanical grinding and thermal dispersion under high temperature and high concentration conditions.

[0003] The patent CN209099045U discloses a pulper grinding plate, which comprises a dynamic grinding plate (1, 9) and a fixed grinding plate (24) matched with the dynamic grinding plate (1, 9). The pulper grinding plate comprises a grinding plate unit (1', 9'), which comprises an inlet end (7) and an outlet end (8), and at least two different functional areas therebetween, at least including a pulping area (4). The pulping area (4) is provided with pulp and steam grooves (5), and a pulping working part (12) is arranged between the adjacent two pulp and steam grooves (5), wherein the pulping working part (12) is provided with grinding teeth (2) and different depth first grooves (3) and second grooves (3') arranged thereon.

[0004] The tooth groove spacing of the coarse grinding area of the above-mentioned device is too large, so that too much pulp flows directly in the coarse grinding groove without stopping, causing the pulp to easily cross the coarse grinding area and enter the fine grinding area. Larger pulp particles in the pulp enter the fine grinding area without being completely broken in the coarse grinding area, and the fine grinding groove is easily blocked by larger pulp particles, affecting the pulping effect and resulting in insufficient fineness of the final pulping. UTILITY MODEL CONTENT

[0005] In order to overcome the above-mentioned defects of the prior art, the utility model provides a hot dispersion pulper grinding plate to solve the problems of the above-mentioned background art, such as the tooth groove spacing of the coarse grinding area being too large, the larger pulp particles in the pulp entering the fine grinding area without being completely broken in the coarse grinding area, affecting the pulping effect, and resulting in insufficient fineness of the final pulping.

[0006] The utility model provides the following technical scheme:

[0007] A hot dispersion pulper grinding plate, comprising a grinding plate base plate and a pulp inlet end and a pulp outlet end arranged on the grinding plate base plate, wherein the grinding plate base plate is sequentially provided with a coarse grinding area, a fine grinding area and a fine grinding area from the pulp inlet end to the pulp outlet end, and a bevel groove is formed in the grinding plate base plate, and the coarse grinding area is arranged on the bevel groove.

[0008] Further, the rough grinding area comprises a plurality of rough grinding teeth, a first stop block, and a second stop block, rough grinding grooves are formed between the rough grinding teeth, the first stop block is located in the rough grinding groove, the first stop block is fixedly connected with the side wall of the adjacent rough grinding tooth, the second stop block is located in the rough grinding groove, the second stop block is fixedly connected with the side wall of the adjacent rough grinding tooth, and the second stop block is located on the side, away from the pulp inlet end, of the first stop block.

[0009] Further, the fine grinding area comprises a plurality of fine grinding teeth, the fine grinding teeth are fixedly connected with the grinding plate base plate, fine grinding grooves are formed between the fine grinding teeth, and the width of the fine grinding groove is smaller than the width of the rough grinding tooth.

[0010] Further, the fine grinding area comprises a plurality of fine grinding teeth, the fine grinding teeth are fixedly connected with the grinding plate base plate, fine grinding grooves are formed between the fine grinding teeth, and the width of the fine grinding groove is smaller than the width of the rough grinding tooth.

[0011] Further, the grinding plate base plate is arranged in a fan shape, the pulp inlet end is located on the inner side of the grinding plate base plate, and the pulp outlet end is located on the outer side of the grinding plate base plate.

[0012] Further, the inclined groove gradually rises from the pulp inlet end to the pulp outlet end, and the rough grinding tooth is fixedly connected with the inclined groove.

[0013] Further, the first groove is arranged between the rough grinding area and the fine grinding area, and the second groove is arranged between the fine grinding area and the fine grinding area.

[0014] Further, the top surfaces of the first stop block and the second stop block are arranged in an inclined manner, and the inclined surfaces of the first stop block and the second stop block gradually rise from the pulp inlet end to the pulp outlet end.

[0015] The technical effects and advantages of the present application are as follows:

[0016] 1. The rough grinding groove and the second stop block can slow down the moving speed of the pulp, avoid the pulp flowing directly from the rough grinding area to the fine grinding area during the rough grinding process, and drive the pulp to pass through the rough grinding area multiple times, so that the pulp is broken more fully and the efficiency of the rough grinding area for breaking the pulp is improved.

[0017] 2. The first groove and the second groove are arranged, so that the pulp flows more uniformly into the fine grinding area and the fine grinding area, which is beneficial to uniform pulp distribution and improves the grinding effect. BRIEF DESCRIPTION OF DRAWINGS

[0018] Fig. 1 is the main view of the present application;

[0019] Fig. 2 is the perspective view of the present application;

[0020] Fig. 3 is a bottom view of the utility model.

[0021] The figure signs are: 1, abrasive plate base plate; 2, pulp inlet end; 3, pulp outlet end; 4, inclined groove; 5, rough grinding tooth; 6, rough grinding groove; 7, first stop block; 8, second stop block; 9, fine grinding tooth; 10, fine grinding groove; 11, fine grinding tooth; 12, fine grinding groove; 13, first groove; 14, second groove. DETAILED DESCRIPTION

[0022] The utility model will be further explained in combination with specific embodiments, however, people skilled in the art should understand that the detailed explanation given in combination with the drawings is for better explanation, the structure of the utility model must exceed these limited embodiments, and for some equivalent replacement schemes or common means, the detailed description will not be made in the present article, but still belongs to the protection scope of the present application.

[0023] The drawings Figs. 1-3 is the best embodiment of the utility model, the following will be combined with the drawings Figs. 1-3 The utility model will be further explained.

[0024] The drawings Figs. 1-3 A hot dispersion pulp grinder abrasive plate, including abrasive plate base plate 1 and the pulp inlet end 2 and the pulp outlet end 3 of setting on abrasive plate base plate 1, abrasive plate base plate 1 is sequentially provided with rough grinding area, fine grinding area and fine grinding area from the pulp inlet end 2 to the pulp outlet end 3 on it, the inclined groove 4 is opened on abrasive plate base plate 1, and the rough grinding area is arranged on the inclined groove 4.

[0025] Specifically, the rough grinding area includes a plurality of rough grinding teeth 5, a first stop block 7 and a second stop block 8, the rough grinding teeth 5 form a rough grinding groove 6 therebetween, the first stop block 7 is located in the rough grinding groove 6, the first stop block 7 is fixedly connected with the side wall of the adjacent rough grinding tooth 5, the second stop block 8 is located in the rough grinding groove 6, the second stop block 8 is fixedly connected with the side wall of the adjacent rough grinding tooth 5, and the second stop block 8 is located on the side away from the pulp inlet end 2 of the first stop block 7.

[0026] In the embodiment, the rough grinding groove 6 and the second stop block 8 can slow down the moving speed of the pulp, avoid the pulp from flowing directly from the rough grinding area to the fine grinding area in the rough grinding process, and drive the pulp to pass through the rough grinding area multiple times, so that the pulp is broken more fully and the efficiency of the rough grinding area for breaking the pulp is improved.

[0027] Specifically, the fine grinding area includes a plurality of fine grinding teeth 9, the fine grinding teeth 9 are fixedly connected with the abrasive plate base plate 1, the fine grinding teeth 9 form a fine grinding groove 10 therebetween, and the width of the fine grinding groove 10 is less than the width of the rough grinding tooth 5.

[0028] Specifically, the fine grinding area includes a plurality of fine grinding teeth 9, the fine grinding teeth 9 are fixedly connected with the abrasive plate base plate 1, the fine grinding teeth 9 form a fine grinding groove 10 therebetween, and the width of the fine grinding groove 10 is less than the width of the rough grinding tooth 5.

[0029] Specifically, the grinding sheet base plate 1 is arranged in a fan shape, the pulp inlet end 2 is located at the inner side of the grinding sheet base plate 1, and the pulp outlet end 3 is located at the outer side of the grinding sheet base plate 1.

[0030] Specifically, the inclined groove 4 gradually rises from the pulp inlet end 2 to the pulp outlet end 3, and the rough grinding tooth 5 is fixedly connected with the inclined groove 4.

[0031] In the embodiment, the angle of the inclined groove 4 is such that more slurry can be accommodated in the rough grinding area, so that the slurry is extruded when flowing to the fine grinding area during the rough grinding process, thereby improving the rough grinding effect.

[0032] Specifically, the first groove 13 is arranged between the rough grinding area and the fine grinding area, and the second groove 14 is arranged between the fine grinding area and the fine grinding area.

[0033] In the embodiment, the first groove 13 and the second groove 14 make the slurry flow more uniformly into the fine grinding area and the fine grinding area, which is beneficial to uniform pulp distribution and improves the grinding effect.

[0034] Specifically, the top surfaces of the first stop block 7 and the second stop block 8 are inclined, and the inclined surfaces of the first stop block 7 and the second stop block 8 gradually rise from the pulp inlet end 2 to the pulp outlet end 3.

[0035] In the embodiment, when the slurry passes through the first stop block 7 and the second stop block 8, it moves upward along the inclined surfaces of the first stop block 7 and the second stop block 8, and in the process of moving upward, the slurry is sheared by the rough grinding tooth 5, which is beneficial to grinding the slurry more finely.

[0036] The working principle and use process of the utility model are as follows: in use, the slurry enters the rough grinding groove 6 from the pulp inlet end 2, the rough grinding groove 6 and the second stop block 8 slow down the moving speed of the slurry, avoiding the slurry flowing from the rough grinding area to the fine grinding area directly in the rough grinding process, and at the same time, due to the centrifugal force when the grinding sheet base plate 1 rotates, the slurry can be driven to pass through the rough grinding area multiple times, so that the slurry is broken more fully, and the efficiency of grinding the slurry in the rough grinding area is improved; after the slurry is roughly ground, it enters the multiple fine grinding grooves 10 through the first groove 13 and is further ground by the fine grinding tooth 9, so that the particles of the slurry are further reduced; after the slurry is finely ground, it enters the multiple fine grinding grooves 12 through the second groove 14 and is further ground by the fine grinding tooth 11, so that the slurry becomes fine, and is discharged from the pulp outlet end 3.

[0037] The above merely describes preferred embodiments of the present application, but is not intended to limit the present application in other forms, and any skilled person in the art can modify or change the above disclosed technical content into equivalent embodiments with equivalent changes. However, any simple modification, equivalent change and modification made to the above embodiments without departing from the technical solution of the present application and according to the technical essence of the present application still falls within the protection scope of the technical solution of the present application.

Claims

1. A heat-dispersing refiner plate comprising a plate substrate (1) and a stock inlet end (2) and a stock outlet end (3) arranged on the plate substrate (1), characterized in that: The abrasive plate base (1) is provided with a rough grinding area, a fine grinding area and a precision grinding area from the pulp inlet end (2) to the pulp outlet end (3) in sequence, and the abrasive plate base (1) is provided with an inclined groove (4), and the rough grinding area is arranged on the inclined groove (4).

2. A thermal disperser refiner plate according to claim 1, characterized in that: The rough grinding area comprises a plurality of rough grinding teeth (5), a first stop block (7) and a second stop block (8), the rough grinding teeth (5) form a rough grinding groove (6) between the rough grinding teeth (5), the first stop block (7) is located in the rough grinding groove (6), the first stop block (7) is fixedly connected with the side wall of the adjacent rough grinding tooth (5), the second stop block (8) is located in the rough grinding groove (6), the second stop block (8) is fixedly connected with the side wall of the adjacent rough grinding tooth (5), and the second stop block (8) is located on the side away from the pulp inlet end (2) of the first stop block (7).

3. A thermal disperser refiner plate according to claim 2, characterized in that: The fine grinding area comprises a plurality of fine grinding teeth (9), the fine grinding teeth (9) are fixedly connected with the abrasive plate base (1), the fine grinding teeth (9) form a fine grinding groove (10) between the fine grinding teeth (9), and the width of the fine grinding groove (10) is smaller than the width of the rough grinding tooth (5).

4. A thermal disperser refiner plate according to claim 3, characterized in that: The precision grinding area comprises a plurality of precision grinding teeth (11), the precision grinding teeth (11) are fixedly connected with the abrasive plate base (1), the precision grinding teeth (11) form a precision grinding groove (12) between the precision grinding teeth (11), and the width of the precision grinding groove (12) is smaller than the width of the fine grinding groove (10).

5. A thermal disperser refiner plate as claimed in claim 1 wherein: The abrasive plate base (1) is provided in a fan shape, the pulp inlet end (2) is located at the inner side of the abrasive plate base (1), and the pulp outlet end (3) is located at the outer side of the abrasive plate base (1).

6. A thermal disperser refiner plate as claimed in claim 3, characterized in that: The inclined groove (4) gradually rises from the pulp inlet end (2) to the pulp outlet end (3), and the rough grinding tooth (5) is fixedly connected with the inclined groove (4).

7. A thermal disperser refiner plate as claimed in claim 4, characterized in that: The first groove (13) is arranged between the rough grinding area and the fine grinding area, and the second groove (14) is arranged between the fine grinding area and the precision grinding area.

8. A thermal disperser refiner plate as claimed in claim 2, characterized in that: The top surfaces of the first stop block (7) and the second stop block (8) are inclined, and the inclined surfaces of the first stop block (7) and the second stop block (8) gradually rise from the pulp inlet end (2) to the pulp outlet end (3).

Images