Sulbactam acid product crushing and sieving device

Abstract

The utility model relates to a sulbactam acid product crushing and screening device, which is characterized in that a screen plate is a conical screen plate, and medicinal powder can slide downwards from the conical top of the conical screen plate under the action of self weight and a vibration motor, so that the medicinal powder is dispersed on the upper surface of the conical screen plate for screening, on one hand, the conical screen plate increases the screening area compared with a flat plate; on the other hand, screen holes are not prone to being blocked. When the screen plate needs to be cleaned, the draught fan is started, airflow is led to sequentially pass through the filter, the draught fan, the flexible hose and the longitudinal ventilation pipeline and is sprayed to the conical screen plate, namely the screen plate, through the air spraying opening, blocked screen holes are dredged through the airflow, in the process, the motor is started, the air spraying opening is driven to rotate around the center line of the screen plate through the driving gear and the driven gear ring, and the screen plate is cleaned. Therefore, the purpose of comprehensively cleaning the screen plate is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of auxiliary equipment for sulbactam acid production, in particular to a pulverizing and screening device for sulbactam acid products. Background Art

[0002] Sulbactam acid is a white crystalline solid, which is commonly used to synthesize sulbactam sodium. The quality of sulbactam acid determines the product quality of sulbactam sodium. At the same time, sulbactam sodium that does not meet the quality standards can be recycled and used to prepare sulbactam acid. The prepared sulbactam acid has the advantages of high content, few impurities, low color grade, good fluidity and good stability. The preparation method is simple, energy-saving and environmentally friendly, and suitable for large-scale industrial production. CN 108997376 B discloses a method for preparing sulbactam acid, that is, using sulbactam sodium as a raw material, adding a solubilizing agent to the concentrated solution while introducing carbon dioxide to cool and grow crystals, and filtering, washing and drying the crystals to obtain sulbactam acid powder. Before making the sulbactam acid product, the sulbactam acid powder still needs to be crushed and sieved to avoid mixing with larger particles of powder, ensure that the powder particle size is uniform, and ensure that the quality of the powder meets the standards.

[0003] CN 213315175 U discloses a rapid screening device for raw medicine, comprising a screening cylinder, a feeding mechanism, a driving mechanism, a screen assembly and a vibration reduction assembly; the feeding mechanism is arranged at the top of the screening cylinder, the feeding mechanism comprises a feeding hopper and a roller assembly arranged at the discharge port of the feeding hopper for grinding and crushing the raw medicine, the roller assembly comprises an active roller and a driven roller, and heating resistance wires are arranged inside the active roller and the driven roller; the screen assembly is arranged in the screening cylinder, comprising a rotating shaft and a screen plate arranged at the lower end of the rotating shaft; the driving mechanism is arranged at the top of the screening cylinder, and is used to drive the rotating shaft and the active roller to rotate. The device can grind and dry the feed by arranging a heatable roller assembly at the discharge port of the feeding hopper, which can greatly reduce the number of large-particle powder in the feed, improve the screening efficiency, and reduce the moisture content of the powder, ensuring that the powder can be better preserved after screening. However, the following problems still exist during use: the finer the powder required, the smaller the sieve holes of the sieve plate. After feeding, the sieve holes on the sieve plate are easy to be blocked and difficult to clean. Utility Model Content

[0004] The purpose of the utility model is to provide a sulbactam acid product crushing and screening device to solve the above problems, which is beneficial to screening and avoids clogging of the sieve holes, and is convenient for cleaning the sieve plate.

[0005] The technical solution of the utility model is:

[0006] A sulbactam acid product crushing and screening device, comprising a screening drum, a crushing bin arranged in the screening drum, two crushing roller assemblies arranged in the crushing bin, and a screen plate arranged below the crushing bin, wherein a feed pipe connected to the crushing bin is arranged at the center of the top of the screening drum, and the technical key points are: the screen plate is a conical screen plate, the cone top of the conical screen plate is located directly below the outlet of the crushing bin, a connecting frame is fixed to the bottom surface of the cone top of the conical screen plate, and a vibration motor is fixed to the connecting frame, the four peripheral edges of the conical screen plate are connected and fixed to the inner wall of the screening drum, and a motor is fixed to one side of the top of the screening drum. A driving gear connected to the output shaft of the motor is provided on the inner side of the screening cylinder, a shaft sleeve is provided on the pipe section of the feed pipe located in the screening cylinder, a passive gear ring meshing with the driving gear is fixed on the outer side of the shaft sleeve, a filter and a fan connected to the filter are fixed on the other side of the top of the screening cylinder, a longitudinal ventilation pipeline is connected to the passive gear ring, the upper end of the longitudinal ventilation pipeline passes through the passive gear ring and is connected to a flexible hose, the other end of the flexible hose passes through the top of the screening cylinder and is connected to the air outlet pipeline of the fan, and an air jet toward the conical mesh plate is provided at the lower end of the longitudinal ventilation pipeline.

[0007] In the above-mentioned sulbactam acid product crushing and screening device, the lower end of the feed pipe is reduced in diameter and is located directly above the middle of the two crushing roller assemblies, and the upper port of the crushing bin is connected and fixed to the middle of the feed pipe.

[0008] In the above-mentioned sulbactam acid product crushing and screening device, the cone top of the conical mesh plate is not provided with a sieve hole to prevent powder from leaking above the vibration motor.

[0009] The beneficial effects of the utility model are:

[0010] 1. Since the screen plate is a conical screen plate, the powder can slide downward from the top of the conical screen plate under the action of its own weight and the vibration motor, and then dispersed on the upper surface of the conical screen plate for screening. On the one hand, the conical screen plate increases the screening area compared to the flat plate, and on the other hand, it is not easy to clog the screen holes.

[0011] 2. When the screen plate needs to be cleaned, start the fan to lead the airflow through the filter, fan, flexible hose and longitudinal ventilation duct in sequence, and spray from the jet port to the conical mesh plate, i.e. the screen plate. In this process, start the motor to drive the jet port to rotate around the center line of the screen plate through the active gear and the passive gear ring, and use the airflow to dredge the blocked screen holes, thereby achieving the purpose of fully cleaning the screen plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of the utility model.

[0013] In the figure: 1. motor, 2. driving gear, 3. screening cylinder, 4. crushing bin, 5. crushing roller assembly, 6. screen plate, 7. passive gear ring, 8. discharge port, 9. bushing, 10. feed pipe, 11. flexible hose, 12. fan, 13. filter, 14. longitudinal ventilation pipeline, 15. jet nozzle, 16. vibration motor, 17. connecting frame. DETAILED DESCRIPTION

[0014] The utility model is described in detail according to the accompanying drawings of the specification.

[0015] like Figure 1 As shown, the sulbactam acid product pulverizing and screening device comprises a screening cylinder 3, a pulverizing bin 4 arranged in the screening cylinder 3, two pulverizing roller assemblies 5 arranged in the pulverizing bin 4, and a screen plate 6 arranged below the pulverizing bin 4. A feed pipe 10 connected to the pulverizing bin 4 is arranged at the top center of the screening cylinder 3.

[0016] The screen plate 6 is a conical screen plate, the top of which is located directly below the outlet of the crushing bin 4, a connecting frame 17 is fixed to the bottom of the top of the conical screen plate, and a vibration motor 16 is fixed to the connecting frame 17, and the four edges of the conical screen plate are connected and fixed to the inner wall of the screening cylinder 3.

[0017] A motor 1 is fixed to one side of the top of the screening cylinder 3, a driving gear 2 connected to the output shaft of the motor 1 is provided inside the screening cylinder 3, a sleeve 9 is provided on the pipe section of the feed pipe 10 located inside the screening cylinder 3, a passive gear ring 7 meshing with the driving gear 2 is fixed to the outside of the sleeve 9. A filter 13 and a fan 12 connected to the filter 13 are fixed to the other side of the top of the screening cylinder 3, a longitudinal ventilation pipeline 14 is connected to the passive gear ring 7, the upper end of the longitudinal ventilation pipeline 14 passes through the passive gear ring 7 and is connected to a flexible hose 11, the other end of the flexible hose 11 passes through the top of the screening cylinder 3 and is connected to the air outlet pipeline of the fan 12, and the lower end of the longitudinal ventilation pipeline 14 is provided with an air jet 15 facing the conical mesh plate.

[0018] In this embodiment, the lower end of the feed pipe 10 is reduced in diameter and located just above the middle of the two crushing roller assemblies 5, and the upper end of the crushing bin 4 is connected and fixed to the middle of the feed pipe 10. No sieve holes are provided at the top of the conical mesh plate to prevent powder from leaking above the vibration motor 16.

[0019] Working principle:

[0020] When in use, the sulbactam acid product to be crushed and screened is sent to the feed pipe 10 through the conveying mechanism, and then continuously falls into the crushing bin 4 from the feed pipe 10, and after being ground by the two crushing roller assemblies 5, falls on the top of the screen plate 6. Under the action of the vibration motor 16 and its own weight, the powder slides downward from the top of the cone screen plate, and is thus dispersed on the upper surface of the cone screen plate for screening. Finally, the screened powder is discharged through the discharge port 8 at the lower end of the screening cylinder 3. When cleaning the screen plate 6, the fan 12 is started, and the air flow is led to pass through the filter 13, the fan 12, the flexible hose 11 and the longitudinal ventilation pipeline 14 in sequence, and is sprayed from the air jet 15 to the cone screen plate, i.e., the screen plate 6, and the blocked sieve holes are cleared by the air flow. In this process, the motor 1 drives the air jet 15 to reciprocate around the center line of the screen plate 6 through the driving gear 2 and the passive gear ring 7, so as to achieve the purpose of fully cleaning the screen plate 6.

[0021] The above is a detailed description of the embodiments of the utility model, but the above contents are only preferred embodiments of the utility model and cannot be considered to limit the scope of implementation of the utility model. All equivalent changes and improvements made within the scope of the invention of the utility model should still fall within the scope of this patent.

Claims

1. A sulbactam acid product pulverizing and screening device, comprising a screening cylinder, a pulverizing bin arranged in the screening cylinder, two pulverizing roller assemblies arranged in the pulverizing bin, and a screen plate arranged below the pulverizing bin, wherein a feed pipe connected to the pulverizing bin is arranged at the center of the top of the screening cylinder, and characterized in that: The screen plate is a conical screen plate, the cone top of the conical screen plate is located directly below the outlet of the crushing bin, a connecting frame is fixed to the bottom surface of the cone top of the conical screen plate, and a vibration motor is fixed on the connecting frame, the four peripheral edges of the conical screen plate are connected and fixed to the inner wall of the screening cylinder, a motor is fixed to one side of the top of the screening cylinder, a driving gear connected to the output shaft of the motor is provided on the inner side of the screening cylinder, a shaft sleeve is provided on the pipe section of the feed pipe located in the screening cylinder, a passive gear ring meshing with the driving gear is fixed on the outside of the shaft sleeve, a filter and a fan connected to the filter are fixed on the other side of the top of the screening cylinder, a longitudinal ventilation duct is connected to the passive gear ring, the upper end of the longitudinal ventilation duct passes through the passive gear ring and is connected to a flexible hose, the other end of the flexible hose passes through the top of the screening cylinder and is connected to the air outlet duct of the fan, and a jet port facing the conical screen plate is provided at the lower end of the longitudinal ventilation duct.

2. The sulbactam acid product crushing and screening device according to claim 1, characterized in that: The lower end of the feed pipe is reduced in diameter and is located just above the middle of the two crushing roller assemblies, and the upper port of the crushing bin is connected and fixed to the middle of the feed pipe.

3. The sulbactam acid product crushing and screening device according to claim 1, characterized in that: The cone top position of the conical mesh plate is not provided with a sieve hole.

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