Raw material medicine cleaning and closed conveying device

Abstract

The utility model belongs to the technical field of transportation devices, and particularly relates to a raw material medicine cleaning and closed conveying device which comprises a filter cake conveying mechanism, a stock bin is connected to the bottom of the filter cake conveying mechanism, a plate-and-frame filter press is arranged on the top of the filter cake conveying mechanism in a matched mode, a plurality of filter plate frames are arranged in the plate-and-frame filter press, and filter cloth is arranged on the surfaces of the filter plate frames. A transmission shaft and a scraper blade matched with the filter cloth are arranged on one side of the filter plate frame, a storage tank feeder is connected to the bottom of the stock bin, and two storage tanks are connected to the storage tank feeder. The device can realize efficient separation of raw material medicines and cleaning water, prolong the service life of equipment, inhibit dust diffusion and ensure the purity of the raw material medicines.

Description

Technical Field

[0001] The utility model belongs to the technical field of transportation devices, and in particular relates to a closed transportation device for cleaning raw material medicines. Background Art

[0002] Clean production technology is of great significance in the pharmaceutical industry. By optimizing processes, selecting clean raw materials, integrating advanced equipment and recycling resources, it is possible to control pollution sources in the production process, improve resource utilization efficiency and reduce pollutant emissions in the product production process.

[0003] In the production process of APIs, in order to remove the reaction by-products, catalyst residues and unreacted raw materials adsorbed on the surface of APIs, continuous process water is required to rinse the APIs. However, this process has significant defects: first, the APIs will cause a large amount of water resource waste in the cleaning process, increasing production costs; second, the dehydration process of APIs is mainly completed by the centrifugal action of the bag centrifuge. The bag centrifuge will produce obvious vibrations during operation, which will not only pose a threat to the long-term stable operation of the equipment and shorten the service life of the equipment, but also put forward strict requirements on the operating environment. If the operator lacks professional skills and relevant knowledge, it is easy to cause equipment failure, bringing potential production risks and personnel safety hazards; third, after the bag centrifuge is dehydrated, the filter cake of the API will also produce a large amount of dust, seriously polluting the production environment and posing a great threat to the health of the staff; finally, the filter cake of the API is very susceptible to secondary contamination during the transportation stage, which in turn affects the product quality and leads to a decrease in product purity and stability. Utility Model Content

[0004] The utility model aims to provide a closed conveying device for cleaning raw materials, which can realize efficient separation of raw materials and cleaning water, eliminate severe mechanical vibration, extend the service life of the equipment, and at the same time inhibit dust diffusion to ensure the purity of the raw materials.

[0005] To achieve the above purpose, the technical solution of the utility model is:

[0006] A closed conveying device for cleaning raw materials comprises a filter cake conveying mechanism, wherein the bottom of the filter cake conveying mechanism is connected to a silo, a plate and frame filter press is arranged on the top of the filter cake conveying mechanism, a plurality of filter plates and frames are arranged inside the plate and frame filter press, filter cloths are arranged on the surfaces of the filter plates and frames, a transmission shaft and a scraper are arranged on one side of the filter plate and frame in cooperation with the filter cloth, a storage tank feeder is connected to the bottom of the silo, and two storage tanks are connected to the storage tank feeder.

[0007] in:

[0008] The plate and frame filter press is arranged in a rectangular shape as a whole, and a plurality of filter plate frames are arranged horizontally inside the plate and frame filter press.

[0009] The two ends of the transmission shaft are rotatably arranged on the inner wall of the plate-frame filter press, and the transmission shafts of two adjacent filter plate frames are arranged opposite to each other.

[0010] A feed pipe is arranged on the top of the plate-frame filter press, and each filter plate frame is matched with a plate-frame feed pipe, one end of the plate-frame feed pipe is connected to the filter plate frame, and the other end of the plate-frame feed pipe is connected to the feed pipe.

[0011] A hydraulic cylinder is arranged on the top of the plate and frame filter press.

[0012] A water outlet pipe is arranged on one side of the plate-frame filter press, one end of the water outlet pipe is connected to the filter plate frame, and the other end of the water outlet pipe penetrates the plate-frame filter press and extends to the outside of the plate-frame filter press.

[0013] A weighing module is arranged in the middle of the silo, and a vibrating discharger is arranged at the bottom of the silo.

[0014] The top of the storage tank is provided with a motor, the side wall of the storage tank is provided with a feed port in cooperation with the storage tank feeder, and the middle of the storage tank is provided with a sight glass.

[0015] The filter cake conveying mechanism is internally provided with a one-way conveying auger in coordination with the material bin.

[0016] The storage tank feeder is internally provided with a bidirectional conveying auger in cooperation with the two storage tanks.

[0017] The beneficial effects of the utility model are:

[0018] The plate and frame filter press is used to clean and dehydrate the API, which achieves efficient separation of the API and the washing water, reduces water waste, and avoids the severe vibration problem during the dehydration operation of the hanging bag centrifuge, ensuring the long-term stable operation of the equipment and extending the service life of the equipment; the API filter cake is transported through the filter cake conveying mechanism and the tank feeder, which can prevent dust diffusion, improve the production environment, reduce the risk of occupational diseases, and avoid the API filter cake from contacting the outside world during the transportation process, ensuring product purity and stability, and improving product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of the utility model;

[0020] Figure 2 It is a structural schematic diagram of the filter plate frame, filter cloth, transmission shaft and scraper in the utility model;

[0021] Figure 3 It is a schematic diagram of the structure of the filter plate frame, filter cloth, transmission shaft, scraper, feed pipe and plate frame feed pipe in the utility model;

[0022] Figure 4It is a partial cutaway schematic diagram of the filter cake conveying mechanism and the plate and frame filter press in the utility model;

[0023] Figure 5 It is a partial cutaway schematic diagram of the storage tank feeder in the utility model;

[0024] In the figure:

[0025] 1. Filter cake conveying mechanism; 2. Plate and frame filter press; 3. Silo; 4. Tank feeder; 5. Tank; 6. Filter plate and frame; 7. Filter cloth; 8. Transmission shaft; 9. Scraper; 10. Feed pipe; 11. Plate and frame feed pipe; 12. Hydraulic cylinder; 13. Water outlet pipe; 14. Weighing module; 15. Vibrating discharger. DETAILED DESCRIPTION

[0026] The present invention will be specifically described and illustrated below in conjunction with the embodiments.

[0027] Example 1

[0028] like Figure 1-5 As shown, the closed conveying device for cleaning raw materials of the utility model comprises a filter cake conveying mechanism 1, a silo 3 is connected to the bottom of the filter cake conveying mechanism 1, a plate-frame filter press 2 is arranged on the top of the filter cake conveying mechanism 1, a plurality of filter plates 6 are arranged inside the plate-frame filter press 2, a filter cloth 7 is arranged on the surface of the filter plate frame 6, a transmission shaft 8 and a scraper 9 are arranged on one side of the filter plate frame 6 in cooperation with the filter cloth 7, a storage tank feeder 4 is connected to the bottom of the silo 3, and two storage tanks 5 are connected to the storage tank feeder 4. The plate-frame filter press 2 is used to clean and dehydrate the raw materials, so as to achieve efficient separation of the raw materials and the cleaning water and reduce the waste of water resources; the filter cake of the raw materials is conveyed by the filter cake conveying mechanism 1 and the storage tank feeder 4, so as to prevent the diffusion of dust, improve the production environment, reduce the risk of occupational diseases, and at the same time avoid the raw materials filter cake from contacting with the outside world during the conveying process, ensure the purity and stability of the product, and improve the product quality.

[0029] The plate and frame filter press 2 is arranged in a rectangular parallelepiped as a whole, and a plurality of filter plate frames 6 are arranged horizontally inside the plate and frame filter press 2. The horizontally arranged filter plate frames 6 are conducive to uniform distribution of the raw materials on the filter plate frames 6, making the cleaning and dehydration process more uniform and efficient, and improving the cleaning and dehydration effect.

[0030] The two ends of the transmission shaft 8 are rotatably arranged on the inner wall of the plate-frame filter press 2, and the transmission shafts 8 of two adjacent filter plate frames 6 are arranged opposite to each other. The scraper 9 can cooperate with the transmission shaft 8 to scrape the raw material filter cake on the surface of the filter cloth 7, ensuring that the raw material filter cake can be smoothly separated from the filter cloth 7, and ensuring the continuous and stable operation of the device.

[0031] A feed pipe 10 is provided on the top of the plate-frame filter press 2, and a plate-frame feed pipe 11 is provided on each filter plate frame 6, one end of the plate-frame feed pipe 11 is connected to the filter plate frame 6, and the other end of the plate-frame feed pipe 11 is connected to the feed pipe 10. The plate-frame feed pipe 11 can evenly transport the raw materials and the cleaning water to each filter plate frame 6.

[0032] A hydraulic cylinder 12 is provided on the top of the plate-frame filter press 2. The hydraulic cylinder 12 can provide pressure for the filter plate frame 6, so that the filter plate frame 6 fits tightly together, realizes the separation of the raw material medicine and the cleaning water, and improves the dehydration efficiency.

[0033] A water outlet pipe 13 is provided on one side of the plate-frame filter press 2, one end of the water outlet pipe 13 is connected to the filter plate frame 6, and the other end of the water outlet pipe 13 passes through the plate-frame filter press 2 and extends to the outside of the plate-frame filter press 2. The water outlet pipe 13 allows the sewage generated during the cleaning process to flow out of the plate-frame filter press 2 in time.

[0034] A weighing module 14 is provided in the middle of the silo 3, and a vibrating discharger 15 is provided at the bottom of the silo 3. The weighing module 14 can monitor the weight of the API filter cake in the silo 3 in real time, so that the operator can grasp the conveying condition of the API filter cake; the vibrating discharger 15 can help the API filter cake in the silo 3 to be discharged smoothly, prevent the API filter cake from accumulating in the silo 3, and ensure the continuity of the conveying of the API filter cake.

[0035] A motor is arranged on the top of the storage tank 5 , a feeding port is arranged on the side wall of the storage tank 5 in cooperation with the storage tank feeder 4 , and a sight glass is arranged in the middle of the storage tank 5 .

[0036] A one-way conveying auger is provided inside the filter cake conveying mechanism 1 in cooperation with the silo 3. The one-way conveying auger can stably and orderly convey the raw material drug filter cake scraped from the plate and frame filter press 2 to the silo 3, thereby realizing directional conveyance of the raw material drug filter cake.

[0037] A bidirectional conveying auger is provided inside the storage tank feeder 4 to cooperate with the two storage tanks 5. The bidirectional conveying auger can distribute the raw material drug filter cake conveyed from the silo 3 to the two storage tanks 5, avoiding the problems of scattering and clogging of the raw material drug filter cake during the conveying process.

[0038] Working process and principle:

[0039] 1. Cleaning and dehydration stage:

[0040] The API and the cleaning water enter the filter plate frame 6 in the plate frame filter press 2 through the feed pipe 10 and the plate frame feed pipe 11. The hydraulic cylinder 12 applies pressure to make the filter plate frame 6 fit tightly together. Impurities penetrate the filter cloth 7 along with the cleaning water and are discharged through the outlet pipe 13. The API is retained on the surface of the filter cloth 7 to form a API filter cake.

[0041] The transmission shaft 8 drives the filter cloth 7 to rotate, and the scraper 9 can cooperate with the transmission shaft 8 to peel off the raw material filter cake on the surface of the filter cloth 7 to avoid dust pollution caused by manual unloading.

[0042] 2. Closed conveying stage:

[0043] The API filter cake in the plate and frame filter press 2 enters the filter cake conveying mechanism 1, and the filter cake conveying mechanism 1 conveys the API filter cake to the silo 3. The weighing module 14 monitors the weight of the API filter cake in the silo 3. When the weight of the API filter cake reaches 500 kg, the vibration discharger 15 is triggered to discharge the material, and the API filter cake in the silo 3 enters the storage tank feeder 4.

[0044] 3. Storage stage:

[0045] The tank feeder 4 distributes the API filter cake to two tanks 5 for separate storage.

Claims

1. A closed conveying device for cleaning raw materials, comprising a filter cake conveying mechanism (1), wherein the bottom of the filter cake conveying mechanism (1) is connected to a silo (3), characterized in that: A plate-and-frame filter press (2) is arranged on the top of the filter cake conveying mechanism (1), a plurality of filter plate frames (6) are arranged inside the plate-and-frame filter press (2), filter cloths (7) are arranged on the surface of the filter plate frames (6), a transmission shaft (8) and a scraper (9) are arranged on one side of the filter plate frames (6) in cooperation with the filter cloths (7), a storage tank feeder (4) is connected to the bottom of the silo (3), and two storage tanks (5) are connected to the storage tank feeder (4).

2. The closed conveying device for cleaning bulk drugs according to claim 1, characterized in that: The plate and frame filter press (2) is arranged in a rectangular parallelepiped as a whole, and a plurality of filter plate frames (6) are arranged horizontally inside the plate and frame filter press (2).

3. The closed conveying device for cleaning bulk drugs according to claim 2, characterized in that: Both ends of the transmission shaft (8) are rotatably arranged on the inner wall of the plate-frame filter press (2), and the transmission shafts (8) of two adjacent filter plate frames (6) are arranged opposite to each other.

4. The closed conveying device for cleaning bulk drugs according to claim 2, characterized in that: A feed pipe (10) is arranged on the top of the plate-frame filter press (2), and a plate-frame feed pipe (11) is arranged on each filter plate frame (6). One end of the plate-frame feed pipe (11) is connected to the filter plate frame (6), and the other end of the plate-frame feed pipe (11) is connected to the feed pipe (10).

5. The closed conveying device for cleaning bulk drugs according to claim 2, characterized in that: A hydraulic cylinder (12) is arranged on the top of the plate and frame filter press (2).

6. The closed conveying device for cleaning bulk drugs according to claim 2, characterized in that: A water outlet pipe (13) is provided on one side of the plate and frame filter press (2); one end of the water outlet pipe (13) is connected to the filter plate frame (6); the other end of the water outlet pipe (13) penetrates the plate and frame filter press (2) and extends to the outside of the plate and frame filter press (2).

7. The closed conveying device for cleaning bulk drugs according to claim 1, characterized in that: A weighing module (14) is arranged in the middle of the silo (3), and a vibrating discharger (15) is arranged at the bottom of the silo (3).

8. The closed conveying device for cleaning bulk drugs according to claim 1, characterized in that: A motor is arranged on the top of the storage tank (5), a feed port is arranged on the side wall of the storage tank (5) in cooperation with the storage tank feeder (4), and a sight glass is arranged in the middle of the storage tank (5).

9. The closed conveying device for cleaning bulk drugs according to claim 1, characterized in that: A one-way conveying auger is arranged inside the filter cake conveying mechanism (1) and in conjunction with the material bin (3).

10. The closed conveying device for cleaning bulk drugs according to claim 1, characterized in that: A bidirectional conveying auger is arranged inside the storage tank feeder (4) and in coordination with the two storage tanks (5).

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