Crushing device for preparing 5-acetoacetamidobenzimidazolone

Abstract

The utility model relates to a crushing device for preparing 5-acetoacetamidobenzimidazolone, which belongs to the technical field of crushing equipment, and comprises a crushing box, a discharge pipe, a feed pipe, a crushing shaft, a crushing motor, a screen and a crushing rod, a grinding block is fixed on the inner wall of the bottom of the crushing box, and a grinding groove is arranged at the top of the grinding block. A grinding roller which rolls in the grinding groove to grind and smash materials is installed on the lower portion of the smashing shaft, an inclined discharging hole communicated with the discharging pipe is formed in the bottom of the grinding groove, and a scraping plate connected with the smashing shaft is arranged in the grinding groove. According to the utility model, the screen is arranged at the upper part of the crushing box, so that caked intermediate materials can be screened out and are crushed by the crushing rod, the crushed materials with qualified sizes fall into the grinding groove below, are ground and crushed by the grinding roller, and are scraped by the scraping plate to move along the grinding groove; when materials fall into the discharging pipe through the discharging hole to be discharged, the materials cannot be blocked, and material smashing is facilitated.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of 5-acetyl acetylamino benzimidazolone preparation with crushing device, belong to crushing equipment technical field. BACKGROUND

[0002] 5-acetyl acetylamino benzimidazolone is often applied to medicine, pesticide, pigment and special material synthesis field, and particle intermediate after crystallization is used in 5-acetyl acetylamino benzimidazolone production, and some particles of these intermediates are large, which adversely affects subsequent reactions and product quality, so crushing device is used for crushing and grinding. The current crushing device is by setting grinding roller or grinding roller pair, and these two structures are to put intermediate directly into feed inlet to enter crushing, but particle intermediate after crystallization is used by drying, and in this process, intermediate can produce caking, and if directly feeding, it is easy to cause blockage, affecting subsequent material crushing. SUMMARY

[0003] The utility model provides a kind of 5-acetyl acetylamino benzimidazolone preparation with crushing device, solve the current device is to put intermediate directly into feed inlet to enter crushing, but particle intermediate after crystallization is used by drying, and in this process, intermediate can produce caking, and if directly feeding, it is easy to cause blockage, affecting subsequent material crushing problem.

[0004] The utility model relates to a kind of 5-acetyl acetylamino benzimidazolone preparation with crushing device, including crushing box, the bottom of crushing box is equipped with discharge pipe, the top of crushing box is equipped with feed pipe, be equipped with crushing shaft in crushing box, and crushing shaft is connected with crushing motor, the upper portion of crushing box is equipped with screen, the upper portion of screen is equipped with the broken pole fixed on the crushing shaft, the inner wall on the bottom of crushing box is fixed with grinding block, the top of grinding block is equipped with annular grinding recess, the lower portion of crushing shaft is installed with the grinding roller that rolls in grinding recess and grinds and crushes material, the bottom of grinding recess is equipped with the inclined discharge hole that is connected with discharge pipe, and the scraping plate that is connected with crushing shaft is equipped in grinding recess.

[0005] As a kind of preferred, the bottom of crushing shaft is fixed with mounting bracket, and grinding roller is rotatably installed on mounting bracket, which is convenient to install.

[0006] As a kind of preferred, the middle of grinding recess is equipped with guide cone, and the outer side of grinding recess is equipped with guide slope, which is convenient for material to fall into grinding recess.

[0007] As a kind of preferred, the lower portion of screen is equipped with guide hopper, and the bottom of guide hopper is equipped with discharge port, which is convenient for material to be concentrated and guided.

[0008] As a preferred embodiment, the crushing box includes an upper box and a lower box, which are connected and fixed together by a connecting flange. The guide hopper is fixed to the inner wall of the upper box, which facilitates installation, disassembly and maintenance.

[0009] As a preferred embodiment, a maintenance opening is provided on the side wall of the lower housing, and a sealing plate is provided on the outside of the maintenance opening to facilitate opening the edge sealing and maintenance of the grinding roller and scraper.

[0010] As a preferred embodiment, a connecting arm plate is fixed to the outer bottom of the crushing shaft, and a welded semi-circular sleeve is fixed to the outer end of the connecting arm plate. An adjusting sleeve is welded and fixed to the inner wall of the welded semi-circular sleeve. An adjusting column is provided inside the adjusting sleeve. The bottom of the adjusting column is fixed to the scraper plate. A locking bolt is provided on the adjusting column, which can adjust the height of the scraper plate so that the bottom of the scraper plate is close to the grinding groove.

[0011] This utility model has the following beneficial effects:

[0012] By setting a screen at the top of the crushing box, agglomerated intermediate materials can be screened out. Then, the crushed materials are crushed by the crushing rod. After crushing, the qualified materials fall into the grinding groove below, and are then ground by the grinding roller. The materials are then scraped by the scraper and move along the grinding groove. When the materials fall into the discharge pipe through the discharge hole, the materials will not be blocked, which is conducive to the crushing of materials. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 for Figure 1 A schematic diagram of the side structure of the scraper.

[0015] Figure 3 A schematic diagram of the top structure for welding the semi-circular sleeve;

[0016] In the diagram: 1. Crushing motor, 2. Upper housing, 3. Crushing shaft, 4. Crushing rod, 5. Screen, 6. Guide hopper, 7. Lower housing, 8. Grinding block, 9. Grinding roller, 10. Grinding groove, 11. Discharge pipe, 12. Discharge hole, 13. Guide cone, 14. Guide slope, 15. Adjusting column, 16. Feed pipe, 17. Sealing plate, 18. Mounting frame, 19. Scraper, 20. Welded semi-circular sleeve, 21. Adjusting sleeve, 22. Connecting arm plate. Detailed Implementation

[0017] The present invention will be further described below with reference to the embodiments.

[0018] Example 1, as Figures 1 to 3As shown, this utility model is a pulverizing device for the preparation of 5-acetylacetamidobenzimidazole, including a pulverizing box, a discharge pipe 11 at the bottom of the pulverizing box, a feed pipe 16 at the top of the pulverizing box, a pulverizing shaft 3 inside the pulverizing box, a pulverizing motor 1 connected to the pulverizing shaft 3, the pulverizing motor 1 being a slow-speed motor, a screen 5 at the top of the pulverizing box, a crushing rod 4 fixed on the pulverizing shaft 3 above the screen 5, a grinding block 8 fixed on the bottom inner wall of the pulverizing box, an annular grinding groove 10 at the top of the grinding block 8, a grinding roller 9 installed at the bottom of the pulverizing shaft 3 for grinding and pulverizing the material by rolling in the grinding groove 10, the grinding roller 9 being inclined, an inclined discharge hole 12 connected to the discharge pipe 11 at the bottom of the grinding groove 10, and a scraper 19 connected to the pulverizing shaft 3 inside the grinding groove 10.

[0019] In use, the crushing motor 1 is started, which drives the crushing shaft 3 and the grinding roller 9 to rotate slowly. The material to be crushed enters from the feed pipe 16 and then falls onto the screen 5. Small particles of material pass through the screen 5 and fall into the grinding and crushing zone below. Clumped material is crushed by the rotating crushing rod 4 on the screen 5 and then falls into the grinding groove 10 through the screen 5. It is then ground and crushed by the rotating grinding roller 9. The scraper 19 scrapes up the ground and crushed material and pushes it along the grinding groove 10. When it moves to the discharge hole 12, the ground and crushed material falls into the discharge hole 12 and then enters the discharge pipe 11 for discharge.

[0020] Example 2: Based on Example 1, a mounting frame 18 is fixed to the bottom of the crushing shaft 3, and the grinding roller 9 is rotatably mounted on the mounting frame 18.

[0021] A guide cone 13 is provided in the middle of the grinding groove 10, and a guide slope 14 is provided on the outer side of the grinding groove 10.

[0022] Below the screen 5 is a guide hopper 6, and the bottom center of the guide hopper 6 is a discharge port.

[0023] The crushing box includes an upper box 2 and a lower box 7, which are connected and fixed by a connecting flange. The guide hopper 6 is fixed on the inner wall of the upper box 2.

[0024] The lower housing 7 has a maintenance opening on its side wall, and a sealing plate 17 is provided on the outside of the maintenance opening to close it.

[0025] A connecting arm plate 22 is fixed to the outer bottom of the crushing shaft 3. A welded semi-circular sleeve 20 is fixed to the outer end of the connecting arm plate 22. An adjusting sleeve 21 is welded and fixed to the inner wall of the welded semi-circular sleeve 20. An adjusting column 15 is provided inside the adjusting sleeve 21. The bottom of the adjusting column 15 is fixed to the scraper plate 19. A locking bolt is provided on the adjusting column 15. After the scraper plate 19 is worn after a period of use, the sealing plate 17 can be opened, the locking bolt can be loosened, and then the adjusting column 15 can be moved downward to move the scraper plate 19 downward. The scraper plate 19 will then be pressed tightly against the grinding groove 10 again. Then the locking bolt can be tightened, and the sealing plate 17 can be fixed back on.

[0026] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0027] In the description of this utility model, the terms "inner", "outer", "longitudinal", "transverse", "upper", "lower", "top", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and do not require that this utility model must be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

Claims

1. A pulverizing device for preparing 5-acetylacetamidobenzimidazolone, comprising a pulverizing chamber, a discharge pipe (11) at the bottom of the pulverizing chamber, a feed pipe (16) at the top of the pulverizing chamber, a pulverizing shaft (3) inside the pulverizing chamber, and a pulverizing motor (1) connected to the pulverizing shaft (3), characterized in that: The upper part of the crushing box is provided with a screen (5), and a crushing rod (4) fixed on the crushing shaft (3) is provided above the screen (5). A grinding block (8) is fixed on the inner wall of the bottom of the crushing box. A ring-shaped grinding groove (10) is provided on the top of the grinding block (8). A grinding roller (9) is installed on the lower part of the crushing shaft (3) to grind and crush the material by rolling in the grinding groove (10). An inclined discharge hole (12) connecting the discharge pipe (11) is provided at the bottom of the grinding groove (10). A scraper (19) connected to the crushing shaft (3) is provided in the grinding groove (10).

2. The pulverizing apparatus for preparing 5-acetylacetamidobenzimidazole according to claim 1, characterized in that: The bottom of the crushing shaft (3) is fixed with a mounting bracket (18), and the grinding roller (9) is rotatably mounted on the mounting bracket (18).

3. The pulverizing apparatus for preparing 5-acetylacetamidobenzimidazolone according to claim 1, characterized in that: A guide cone (13) is provided in the middle of the grinding groove (10), and a guide slope (14) is provided on the outside of the grinding groove (10).

4. The pulverizing apparatus for preparing 5-acetylacetamidobenzimidazolone according to claim 1, characterized in that: Below the screen (5) is a guide hopper (6), and the bottom of the guide hopper (6) is provided with a discharge port.

5. The pulverizing apparatus for preparing 5-acetylacetamidobenzimidazolone according to claim 4, characterized in that: The crushing box includes an upper box (2) and a lower box (7), which are connected and fixed by a connecting flange. The guide hopper (6) is fixed on the inner wall of the upper box (2).

6. The pulverizing apparatus for preparing 5-acetylacetamidobenzimidazolone according to claim 5, characterized in that: The lower housing (7) has a maintenance opening on its side wall, and a sealing plate (17) is provided on the outside of the maintenance opening to close it.

7. The pulverizing apparatus for preparing 5-acetylacetamidobenzimidazolone according to claim 1, characterized in that: A connecting arm plate (22) is fixed to the outer side of the bottom of the crushing shaft (3). A welded semi-circular sleeve (20) is fixed to the outer end of the connecting arm plate (22). An adjusting sleeve (21) is welded and fixed to the inner wall of the welded semi-circular sleeve (20). An adjusting column (15) is provided inside the adjusting sleeve (21). The bottom of the adjusting column (15) is fixed to the scraper plate (19). A locking bolt is provided on the adjusting column (15).

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