Material pumping device

Abstract

The utility model relates to the technical field of raw material medicine production, aims to solve the technical problems of exposure operation, occupational disease harm and environmental pollution in solvent feeding, and discloses a material pumping device which comprises a material pumping device and a material pumping pipe seat arranged on a solvent barrel, a feeding end of the material pumping device is arranged in the material pumping pipe seat, and a discharging end of the material pumping device is arranged in the material pumping pipe seat. The discharging end of the material pumping device is used for inputting materials into the reaction kettle through a negative-pressure material suction pipeline; the material pumping device comprises a bent pipe body and a lower pipe body fixedly connected with the bent pipe body, an upper cavity of the lower pipe body is provided with a check valve, the side portion of the lower pipe body is provided with a nitrogen protection valve communicated with the upper cavity, the upper side portion of the bent pipe body is provided with a nitrogen purging valve communicated with the bent pipe body, and the nitrogen purging valve is connected with a hose used for nitrogen to flow in. Stable sealing is achieved through connection with a solvent barrel, airtight operation is ensured, solvent volatilization and air contact are avoided, occupational disease harm and environmental pollution are reduced, residues are removed through nitrogen purging, and operation safety is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of API production, in particular to a material pumping device. Background Art

[0002] In the process of API production, a variety of volatile organic solvents are often used, such as methanol, ethanol, hydrochloric acid, and ammonia water. When using these solvents, if the open operation mode is adopted, it will cause serious harm to human health and the environment. In production, the solvents are usually transported to the use site in ton barrels or iron barrels. The current feeding method is that on-site operators wear protective equipment such as gas masks and silica gel gloves, manually unscrew the barrel lid, and directly pour the solvent into the reaction kettle. This method of adding solvents has potential safety hazards. For strongly corrosive and toxic solvents, once the operation is improper, it will pose a threat to the health of operators. In addition, this method fails to achieve closed operation, resulting in the volatilization of solvents into the air and polluting the workshop environment. Summary of the Utility Model

[0003] The purpose of the utility model is to provide a material pumping device to solve the technical problems of exposure operation in solvent feeding, occupational disease hazards, and environmental pollution.

[0004] To achieve the above purpose, the utility model provides a material pumping device, which includes a material pump and a material pumping pipe seat installed on the solvent barrel. The feeding end of the material pump is installed in the material pumping pipe seat, and the discharging end of the material pump is used to be input into the reaction kettle through a negative pressure material suction pipeline; the material pump includes a bent pipe body and a lower pipe body fixedly connected to the bent pipe body. A check valve is arranged in the upper chamber of the lower pipe body, a nitrogen protection valve communicated with the upper chamber is arranged on the side of the lower pipe body, a nitrogen purging valve communicated with the bent pipe body is arranged on the upper side of the bent pipe body, and a hose for flowing nitrogen is connected to the nitrogen purging valve.

[0005] By adopting the material pumping device, the open operation in the process of solvent feeding is avoided, the risk of direct contact between operators and toxic and harmful solvents is fundamentally reduced, and the occupational disease hazards are effectively reduced.

[0006] The design of the material pumping device realizes closed feeding. The solvent is transported from the solvent barrel to the reaction kettle through a negative pressure material suction pipeline, preventing the solvent from volatilizing into the air during the feeding process, thereby reducing the pollution of the solvent to the workshop environment.

[0007] A check valve is arranged on the material pump, which can effectively prevent the solvent from flowing back, ensuring the safety and stability of the transportation process.

[0008] The equipped nitrogen protection valve and nitrogen purging valve can provide nitrogen protection during the feeding process, prevent the solvent from contacting with oxygen in the air, reduce the risk of explosion and combustion, and further improve the safety of operation.

[0009] It is convenient to operate, applicable to the safe feeding process of various solvents, improving production efficiency while ensuring a safe production environment.

[0010] Furthermore, the lower pipe body is connected to the suction pipe base through a threaded structure. The side of the suction pipe base is provided with a nitrogen diversion hole slanting downwards, and the lower pipe body is provided with a nitrogen outlet hole corresponding to the nitrogen diversion hole.

[0011] The lower pipe body is connected to the suction pipe base through a threaded structure, ensuring a firm and reliable connection, which is convenient for disassembly and replacement; the slanting downwards nitrogen diversion hole on the side of the suction pipe base is correspondingly arranged with the nitrogen outlet hole of the lower pipe body, realizing the effective introduction of nitrogen in the barrel, ensuring the nitrogen protection effect, preventing oxygen from entering, further reducing the risk of volatile organic solvents contacting air, and reducing the possibility of explosion and fire.

[0012] Furthermore, one end of the discharge end is connected with a corrugated pipe through a ferrule, and the other end of the corrugated pipe is connected with a negative pressure suction pipeline through a ferrule. The negative pressure suction pipeline is provided with a pneumatic pump.

[0013] The discharge end is connected with the corrugated pipe through a ferrule. The flexible design of the corrugated pipe can effectively absorb vibration and offset, preventing damage or leakage caused by rigid connection. Further, it is connected with the negative pressure suction pipeline through a ferrule, improving the connection stability and sealing performance, ensuring the safety and continuity of the solvent during transportation; the pneumatic pump configured in the negative pressure suction pipeline provides stable suction force, ensuring the efficient transportation of the solvent.

[0014] Furthermore, both ends of the nitrogen purge valve and the nitrogen protection valve are provided with ferrules for easy connection. Both ends of the nitrogen purge valve and the nitrogen protection valve are provided with ferrules for easy connection, simplifying the assembly steps during operation, being convenient and fast. At the same time, it improves the connection sealing performance, preventing air leakage, and ensuring the safety of the entire system and the simplicity of operation.

[0015] Furthermore, the end of the hose is provided with a PP locking sleeve for tightly connecting with the ferrule.

[0016] The end of the hose is configured with a PP locking sleeve, which can be tightly connected with the ferrule, ensuring the firmness and sealing performance of the pipeline connection during the nitrogen purge process, preventing nitrogen leakage, improving the purge effect, cleaning the pipeline, reducing residues, and maintaining the cleanliness and safety of the system.

[0017] Furthermore, the lower pipe body is sleeved with an O-ring for airtight connection with the suction pipe base.

[0018] The lower pipe body is sleeved with an O-ring for airtight connection with the suction pipe base, ensuring the sealing performance of the connection part, effectively preventing the leakage and volatilization of the solvent, and at the same time preventing the entry of external air, maintaining the internal and external isolation of the system.

[0019] The feeding device provided by the utility model has the following advantages:

[0020] It avoids the direct contact of operators with toxic and harmful substances during the solvent feeding process, reduces the risk of occupational diseases, and prevents environmental pollution caused by solvent volatilization. The device uses the negative pressure suction method to extract the solvent from the barrel and transport it to the reaction kettle, ensuring the tightness of the feeding process; its check valve design can prevent the solvent from flowing back and improve the safety of transportation; the combined use of the nitrogen protection valve and the nitrogen purge valve realizes the nitrogen protection of the environment in the solvent barrel and the cleaning of the pipeline, reducing the solvent residue; the overall structure is made of lightweight and corrosion-resistant materials, with strong applicability and easy operation, and can be quickly installed on various containers, further improving production efficiency and safety. Description of the Drawings

[0021] Figure 1 It is a schematic application diagram of the feeding device provided by the utility model;

[0022] Figure 2 It is a structural diagram of the feeding device provided by the utility model;

[0023] Figure 3 It is a structural diagram of the feeding pipe provided by the utility model.

[0024] In the figure: 10, reaction kettle; 20, feeder; 30, solvent barrel; 40, pneumatic pump; 21, bellows; 22, hose; 23, locking sleeve; 24, nitrogen purge valve; 25, check valve; 26, nitrogen protection valve; 27, nitrogen outlet hole; 28, O-ring; 31, feeding pipe seat; 32, nitrogen diversion hole. Specific Embodiments

[0025] In order to make the purpose, technical solutions and advantages of the utility model clearer, the following further describes the utility model in detail with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the utility model and are not used to limit the utility model.

[0026] Refer to Figures 1 to 3 , the utility model provides a feeding device, including a feeding pipe seat 31 installed in the solvent barrel 30, a feeder 20 installed at the bottom in the feeding pipe seat 31, the outlet of the feeder 20 is input into the inlet of the reaction kettle 10 through a pipeline, and a pneumatic pump 40 is arranged in the pipeline.

[0027] The feeder 20 includes an L-shaped elbow body and a lower pipe body fixedly connected to the elbow body. The lower pipe body is connected to the feeding pipe seat 31 through a threaded structure. The side of the feeding pipe seat 31 is provided with a nitrogen diversion hole 32 slanting downward, and the feeder 20 is provided with a nitrogen outlet hole 27 corresponding to the nitrogen diversion hole 32.

[0028] The lower pipe body part is arranged inside the material extraction pipe seat 31. A check valve 25 is arranged in the upper chamber of the lower pipe body, and a nitrogen protection valve 26 communicated with it is arranged on the side of the check valve 25. The outlet end of the elbow pipe body is connected with a corrugated pipe 21, and a nitrogen purging valve 24 communicated with the upper side of the elbow head is arranged. The nitrogen purging valve 24 is connected with a hose 22 for flowing in nitrogen.

[0029] Among them, the whole material extraction device is made of PP material, which is very light and corrosion-resistant, and is not easy to generate static electricity.

[0030] A spherical check mechanism is arranged inside the material extractor 20. When extracting the solvent, the solvent pushes open the sphere. It conducts in the forward direction. When purging with nitrogen, the sphere moves downward to seal the downward channel, and the gas can only move towards the material extraction port, realizing the purging of the residual liquid in the outlet pipeline.

[0031] Nitrogen protection enters through the nitrogen protection valve 26 on the material extraction device and is discharged through the nitrogen outlet hole 27. In order to enable nitrogen to smoothly enter the solvent barrel 30, nitrogen diversion holes 32 are arranged at corresponding positions on the material extraction pipe seat 31. Finally, it enters the solvent barrel 30 through the nitrogen diversion holes 32. The gas conduction of two components connected by threads is realized.

[0032] After the material extraction is completed, nitrogen purging can be carried out to minimize the residue in the pipeline as much as possible.

[0033] During the material extraction process, nitrogen supplementation is provided for the material extractor 20, which can effectively prevent the formation of negative pressure in the solvent barrel 30, resulting in the deformation of the container.

[0034] The whole operation process is carried out under nitrogen isolation, which can effectively isolate oxygen and achieve explosion protection of the device.

[0035] All nitrogen pipe joints use ferrule joints, which are convenient to connect, have good sealing performance, and will not cause leakage.

[0036] The material extraction pipe seat 31 is configured on each ton barrel, and the material extractor 20 is configured as needed. It can be quickly connected during use. And as long as it has the same thread, the material extractor can be installed. It can be used on different types of containers.

[0037] The usage method is as follows:

[0038] Install a pumping pipe seat 31 on all solvent barrels 30 such as ton barrels / iron barrels. During use, there is no need to disassemble the pumping pipe seat 31. Only by installing a special barrel cover can sealing be achieved. When in use, unscrew the barrel cover, and connect the extractor 20 to the pumping pipe seat 31 on the barrel through a threaded connection. The outlet of the extractor 20 is connected to the pneumatic pump 40 through a chuck. The nitrogen protection valve 26, the nitrogen purge valve 24 and the nitrogen pipe 22 are connected through a ferrule. When in use, open the nitrogen protection valve 26 and turn on the pneumatic pump 40. The solvent sequentially passes through the pumping pipe seat 31, the extractor 20, and the pneumatic pump 40 and enters the reaction kettle 10. After the solvent pumping is completed, close the nitrogen protection valve 26 and open the nitrogen purge valve 24 to purge the solvent in the connecting pipe from the extractor 20 to the reaction kettle 10.

[0039] A pumping device provided by the utility model has the following advantages:

[0040] By adopting a pumping device that is threadedly connected to the solvent barrel, the installation and operation processes are simplified, the convenience and adaptability of use are improved, and it can be used on different containers at the same time; the threaded connection design between the pumping device and the pumping pipe seat ensures the stability and sealing of the operation, preventing the leakage and volatilization of the solvent; using a pneumatic pump as the power device, the solvent is safely transported to the reaction kettle in a negative pressure manner, realizing a closed operation, avoiding the contact between the solvent and the air, and reducing occupational disease hazards and environmental pollution; during the pumping process, by supplementing the extracted volume with nitrogen, the formation of negative pressure in the solvent barrel is effectively prevented, avoiding the deformation of the container; after the pumping is completed, the pipeline is purged with nitrogen to effectively remove the residual solvent in the pipeline, keep the system clean, and reduce the safety hazards caused by the residual solvent; the nitrogen isolation of the operation environment can effectively prevent oxygen from entering, improving the explosion-proof performance of the device; the application of the ferrule joint makes the connection of the nitrogen pipe more convenient and has good sealing performance, preventing gas leakage and ensuring the safety and efficiency of the operation.

[0041] In summary, through optimized design, the device realizes an efficient, safe and environmentally friendly solvent feeding process and has significant application value.

[0042] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. A material extraction device, characterized in that: The invention comprises a material extractor (20) and a material extraction pipe seat (31) installed on a solvent barrel (30), wherein the feed end of the material extractor (20) is installed in the material extraction pipe seat (31), and the discharge end of the material extractor (20) is used to be input into a reaction kettle (10) through a negative pressure suction pipeline; the material extractor (20) comprises a bent pipe body and a lower pipe body fixedly connected to the bent pipe body, a check valve (25) is arranged on the upper chamber of the lower pipe body, a nitrogen protection valve (26) connected to the upper chamber is arranged on the side of the lower pipe body, a nitrogen purge valve (24) connected thereto is arranged on the upper side of the bent pipe body, and the nitrogen purge valve (24) is connected to a hose (22) for nitrogen to flow in.

2. The material extraction device according to claim 1, characterized in that: The lower tube body is connected to the material extraction tube seat (31) through a threaded structure, a nitrogen flow guide hole (32) obliquely pointing downward is provided on the side of the material extraction tube seat (31), and a nitrogen outlet hole (27) corresponding to the nitrogen flow guide hole (32) is provided on the lower tube body.

3. The material extraction device according to claim 2, characterized in that: The discharge end is connected to one end of a bellows (21) via a ferrule, and the other end of the bellows (21) is connected to a negative pressure suction pipeline via a ferrule, and the negative pressure suction pipeline is provided with a pneumatic pump (40).

4. The material extraction device according to claim 1, characterized in that: Both ends of the nitrogen purge valve (24) and the nitrogen protection valve (26) are provided with ferrules for easy connection.

5. The material extraction device according to claim 4, characterized in that: The end of the hose (22) is provided with a PP locking sleeve (23) for easy tight connection with the ferrule.

6. The material extraction device according to claim 1, characterized in that: The lower tube body is sleeved with an O-ring (28) for airtight connection with the material extraction tube seat (31).

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