Uniform feeding device for phosphorus pentachloride production

Abstract

The utility model discloses a kind of even feeding devices for phosphorus pentachloride production, it is related to phosphorus pentachloride production technical field, including base, the top of base both ends is fixedly connected with U-shaped support seat, the top of base one end is fixedly connected with L-shaped support plate, both ends The top of U-shaped support seat is fixedly connected with heat-insulating jacket device, the inner side wall top of heat-insulating jacket device is fixedly connected with storage bin between, the bottom output end of storage bin is fixedly connected with electric valve, the other end of electric valve is fixedly connected with buffer tank, the base provided in the utility model, on the basis of realizing heat preservation protection to avoid affecting even feeding, increase inert gas protection to avoid causing metamorphosis simultaneously, to solve the temperature of the existing phosphorus pentachloride production feeding device is difficult to control due to lack of effective heat preservation structure, and lack of inert gas protection causes security and metamorphosis problem.

Description

Technical Field

[0001] This utility model relates to the field of phosphorus pentachloride production technology, specifically to a uniform feeding device for phosphorus pentachloride production. Background Technology

[0002] The uniform feeding device for phosphorus pentachloride production is a special equipment that can stably and uniformly add raw materials to the reaction system at a set rate to ensure the smooth progress of the phosphorus pentachloride production reaction.

[0003] According to the public announcement (CN113413789B), the subject is: A feeding device and method for phosphorus pentachloride, including an organic solvent heating device, a feeding device and a mixing device; the organic solvent heating device includes an organic solvent storage tank and an electric heating wire installed in the organic solvent storage tank, the electric heating wire is connected to a power source, etc., so that the dissolved phosphorus pentachloride has more sufficient contact with the reactants, thereby improving the conversion rate of the reactants.

[0004] The above technical solution has the following shortcomings;

[0005] In actual production, the raw materials (such as phosphorus trichloride) and products described above are sensitive to temperature. Too low a temperature slows the reaction rate and reduces production efficiency, while too high a temperature triggers side reactions, generating impurities and affecting purity. Existing feeding devices lack effective insulation structures, making it difficult to maintain suitable temperatures, increasing energy consumption and quality uncertainty. They are also greatly affected by ambient temperature fluctuations, especially in low-temperature seasons or regions where materials cool rapidly, causing deviations from reaction conditions and reducing production stability. Furthermore, the materials are highly chemically reactive; phosphorus pentachloride is hygroscopic and corrosive, easily explodes upon contact with water, and reacts violently with flammable materials. The lack of inert gas protection means that the materials easily react with moisture and oxygen in the air during feeding, reducing purity and potentially causing safety accidents. During storage, the materials are also prone to deterioration, resulting in waste, equipment corrosion, and increased costs and risks. Utility Model Content

[0006] In view of the problems existing in the current uniform feeding device for phosphorus pentachloride production, this utility model is proposed.

[0007] Therefore, the purpose of this utility model is to provide a uniform feeding device for the production of phosphorus pentachloride, which solves the problems of temperature control difficulties caused by the lack of an effective heat preservation structure and the safety and deterioration caused by the lack of inert gas protection in the existing feeding devices for the production of phosphorus pentachloride.

[0008] To achieve the above objectives, this utility model provides the following technical solution:

[0009] A uniform feeding device for phosphorus pentachloride production includes a base, with U-shaped support seats fixedly connected to both ends of the top of the base, an L-shaped support plate fixedly connected to one end of the top of the base, and a heat-insulating jacket device fixedly connected to the top of the two ends of the U-shaped support seats. A storage bin is fixedly connected between the top of the inner sidewalls of the heat-insulating jacket device, and an electric valve is fixedly connected to the bottom output end of the storage bin. A buffer tank is fixedly connected to the other end of the electric valve.

[0010] A Coriolis mass flow meter is fixedly connected to the other end of the buffer tank. A plunger metering pump is fixedly connected to the output end of the Coriolis mass flow meter. A material injection and pressurization pipe head is fixedly connected to the side wall of the L-shaped support plate through an installation mechanism. Both the material injection and pressurization pipe head and the output end of the plunger metering pump are fixedly connected to threaded connection ends. An insulation pipe is threaded between the two threaded connection ends. An anti-loosening mechanism is provided between the two ends of the insulation pipe and the threaded connection ends. A support pipe is fixedly connected inside the cavity of the storage bin. A protective inert gas spray pipe is fixedly connected to one end of the support pipe. A nitrogen power supply device is fixedly connected to one end of the top of the base. The output end of the nitrogen power supply device is fixedly connected to one end of the support pipe.

[0011] Preferably, the installation mechanism includes a limiting slot, a limiting plate, a limiting threaded opening, and a limiting screw. The side wall of the L-shaped support plate has a limiting slot, the side wall of the injection pressurization pipe head is fixedly connected to the limiting plate, the limiting plate engages with the limiting slot, the side walls of the limiting plate and the L-shaped support plate have corresponding limiting threaded openings, and the limiting screw is threadedly connected to them.

[0012] Preferably, the anti-loosening mechanism includes a locking hole, a limiting rod, a spring, and a handle. The side walls of both threaded connection ends are provided with locking holes. The limiting rods are slidably connected in the side wall cavities of the insulation pipes at both ends. The side walls of the limiting rods at both ends are fixedly connected with springs. One end of the limiting rods at both ends is inserted into the locking hole, and the other end of the limiting rods at both ends passes through the side wall of the insulation pipe and is fixedly connected with a handle.

[0013] Preferably, the heat insulation jacket device is a hollow heat insulation oil jacket, and an oil inlet connection pipe and an oil outlet connection pipe are fixedly connected to both ends of the side wall.

[0014] Preferably, a feed valve is fixedly connected to one end of the top of the storage hopper, a safety vent valve is fixedly connected to the other end of the top of the storage hopper, and a filter tank is fixedly connected to the other end of the safety vent valve.

[0015] Furthermore, the buffer tank is a tank body, and a spiral cavity is formed inside the cavity, and multiple spray holes are formed on the surface of the protective inert gas nozzle.

[0016] Preferably, the filter canister is a canister body, and a filter filling layer is fixedly connected inside the cavity, and a separation filter screen is fixedly connected to the top of the filter canister.

[0017] The technical effects and advantages provided by this utility model in the above technical solution are as follows:

[0018] 1. This utility model utilizes an insulated jacket device to control the temperature through the circulation of insulated oil, and works in conjunction with an insulated pipe to reduce temperature loss during the conveying process. This can stably maintain the temperature of the storage bin and materials, preventing phosphorus pentachloride from deteriorating due to temperature fluctuations. The spiral cavity of the buffer tank buffers the impact of materials, and the plunger metering pump achieves quantitative conveying, ensuring uniform feeding.

[0019] 2. This utility model utilizes a nitrogen power supply device to introduce nitrogen into the storage silo through multiple nozzles of a protective inert gas nozzle to create an inert environment, preventing the material from reacting with air. A safety exhaust valve is used to balance the air pressure inside the silo, and the filter filling layer and separation filter screen of the filter tank purify the exhaust gas, preventing pollution and safety accidents.

[0020] 3. This utility model utilizes an anti-loosening mechanism to lock the insulation pipe and threaded connection end through a limit clamp and locking hole to prevent loosening. The limit clamp and limit screw of the installation mechanism enable stable installation and quick disassembly of the injection and pressurization pipe head. The feed valve facilitates controlled feeding, thereby improving overall maintenance efficiency and operational stability. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0022] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0023] Figure 2 This is a front sectional view of the present invention;

[0024] Figure 3 For the present utility model Figure 2 Enlarged schematic diagram of part A.

[0025] Explanation of reference numerals in the attached figures:

[0026] 1. Base; 2. U-shaped support seat; 3. L-shaped support plate; 4. Insulation jacket device; 5. Storage hopper; 6. Electric valve; 7. Buffer tank; 8. Coriolis mass flow meter; 9. Plunger metering pump; 10. Injection and pressurization pipe head; 11. Threaded connection end; 12. Insulation pipe; 13. Support pipe; 14. Protective inert gas nozzle; 15. Nitrogen power supply device; 16. Limiting bayonet; 17. Limiting plate; 18. Limiting threaded port; 19. Limiting screw; 20. Locking hole; 21. Limiting lever; 22. Spring; 23. Handle; 24. Oil inlet connection pipe; 25. Oil outlet connection pipe; 26. Feed valve; 27. Safety exhaust valve; 28. Filter tank; 29. ​​Spray hole; 30. Filter filling layer; 31. Separation filter screen. Detailed Implementation

[0027] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0028] This utility model discloses a uniform feeding device for the production of phosphorus pentachloride.

[0029] This utility model provides, for example Figure 1-3 The uniform feeding device for phosphorus pentachloride production shown includes a base 1, with U-shaped support seats 2 fixedly connected to both ends of the top of the base 1, an L-shaped support plate 3 fixedly connected to one end of the top of the base 1, and a heat insulation jacket device 4 fixedly connected to the top of the two U-shaped support seats 2. A storage bin 5 is fixedly connected between the top of the inner side wall of the heat insulation jacket device 4, and an electric valve 6 is fixedly connected to the bottom output end of the storage bin 5. A buffer tank 7 is fixedly connected to the other end of the electric valve 6.

[0030] A Coriolis mass flow meter 8 is fixedly connected to the other end of the buffer tank 7. A plunger metering pump 9 is fixedly connected to the output end of the Coriolis mass flow meter 8. A material injection and pressurization pipe head 10 is fixedly connected to the side wall of the L-shaped support plate 3 through an installation mechanism. Threaded connection ends 11 are fixedly connected to the output ends of both the material injection and pressurization pipe head 10 and the plunger metering pump 9. A heat insulation pipe 12 is threaded between the two threaded connection ends 11. Anti-loosening mechanisms are provided between the two ends of the heat insulation pipe 12 and the threaded connection ends 11. A support pipe 13 is fixedly connected inside the storage bin 5. A protective inert gas spray pipe 14 is fixedly connected to one end of the support pipe 13. A nitrogen supply device 15 is fixedly connected to one end of the top of the base 1. The output end of the nitrogen supply device 15 is fixedly connected to one end of the support pipe 13. The base 1 provides stable support for the entire device. The U-shaped support seat 2 firmly supports the heat insulation jacket device 4. The L-shaped support plate 3 serves as the material injection and pressurization pipe... The first part 10 provides the installation foundation. The temperature of the storage silo 5 can be controlled by the insulated jacket device 4 to prevent phosphorus pentachloride from deteriorating due to temperature fluctuations. The electric valve 6 can control the material conveying volume. The buffer tank 7 can reduce the impact during material conveying and make the feeding more uniform. The Coriolis mass flow meter 8 can accurately measure the material flow. The plunger metering pump 9 can realize quantitative pressurized conveying to ensure uniform feeding. The insulated pipe 12 can reduce the temperature loss during material conveying. The anti-loosening mechanism can prevent the connection from loosening and ensure the conveying stability. The nitrogen power supply device 15 introduces nitrogen into the storage silo 5 through the protective inert gas nozzle 14 to form an inert environment and prevent phosphorus pentachloride from reacting with air and causing safety problems or deterioration. This solves the problems of existing phosphorus pentachloride production feeding devices that lack effective insulation structure, resulting in difficult temperature control and lack of inert gas protection, leading to safety and deterioration issues.

[0031] To achieve stable installation and convenient disassembly of the injection pressurization nozzle and improve maintenance efficiency, such as Figure 2 As shown, the installation mechanism includes a limiting slot 16, a limiting plate 17, a limiting threaded port 18, and a limiting screw 19. The L-shaped support plate 3 has a limiting slot 16 on its side wall, and the limiting plate 17 is fixedly connected to the side wall of the injection pressurization pipe head 10. The limiting plate 17 engages with the limiting slot 16. The limiting plate 17 and the side wall of the L-shaped support plate 3 have corresponding limiting threaded ports 18, and the limiting screw 19 is threadedly connected. The initial positioning is achieved by engaging the limiting plate 17 with the limiting slot 16. The limiting screw 19 is locked through the limiting threaded port 18 to ensure that the injection pressurization pipe head 10 is installed firmly. Disassembly can be achieved by simply unscrewing the limiting screw, which is convenient for maintenance and replacement and improves operating efficiency.

[0032] To prevent the insulation pipe from loosening at the threaded connection end and to ensure stable material conveying, such as Figure 1-3As shown, the anti-loosening mechanism includes a locking hole 20, a limiting rod 21, a spring 22, and a handle 23. Locking holes 20 are provided on the side walls of the threaded connection ends 11 at both ends. Limiting rods 21 are slidably connected within the side wall cavities of the insulation tubes 12 at both ends. Springs 22 are fixedly connected to the side walls of the limiting rods 21 at both ends. One end of the limiting rods 21 at both ends is inserted into the locking hole 20, and the other end passes through the side wall of the insulation tube 12 and is fixedly connected to the handle 23. The elastic force of the springs 22 pushes the limiting rods 21 into the locking hole 20, further locking the threaded connection and preventing the insulation tube 12 from loosening due to vibration. Pulling the handle 23 allows the limiting rods 21 to disengage from the locking hole 20, facilitating quick disassembly of the insulation tube 12. The operation is convenient and the locking is reliable.

[0033] To achieve precise temperature control in the storage silo and prevent material deterioration due to temperature changes, such as Figure 1 and 2 As shown, the insulation jacket device 4 is a hollow jacket for insulation oil, and the two ends of the side wall are respectively fixedly connected with an oil inlet pipe 24 and an oil outlet pipe 25. The insulation oil is used to enter the hollow jacket through the oil inlet pipe 24, exchange heat with the storage bin 5, and then flow out from the oil outlet pipe 25, forming a circulating temperature control system. This system can stably maintain the temperature inside the storage bin 5, prevent phosphorus pentachloride from decomposing or deteriorating due to temperature fluctuations, and ensure the stability of the material.

[0034] To facilitate material feeding, ensure the safety of the storage silo, and prevent contamination by impurities, such as Figure 1 and 2 As shown, a feed valve 26 is fixedly connected to one end of the top of the storage silo 5, and a safety exhaust valve 27 is fixedly connected to the other end of the top of the storage silo 5. A filter tank 28 is fixedly connected to the other end of the safety exhaust valve 27. The feed valve 26 is used to control the addition of materials to the storage silo 5 and prevent a large amount of air from entering during feeding. The safety exhaust valve 27 is used to balance the air pressure inside the storage silo 5 and prevent excessive pressure from causing safety accidents. The filter tank 28 is used to filter out impurities in the gas and prevent environmental pollution.

[0035] To buffer the impact of material conveying and to ensure uniform distribution of inert gas, such as Figure 2 As shown, the buffer tank 7 is a tank body with a spiral cavity inside. The surface of the protective inert gas nozzle 14 has multiple nozzles 29. The spiral cavity of the buffer tank 7 can extend the material flow path and slow down the flow rate to buffer the impact, making the material conveying more stable. The multiple nozzles 29 of the protective inert gas nozzle 14 can evenly spray nitrogen into the storage bin 5 to ensure that the inert gas fully covers the material and prevents the material from reacting with the air.

[0036] To improve exhaust filtration efficiency and prevent impurities from flowing back, such as Figure 1 and 2As shown, the filter tank 28 is a tank body, and a filter filling layer 30 is fixedly connected inside the cavity. A separation filter screen 31 is fixedly connected to the top of the filter tank 28. The filter filling layer 30 can adsorb harmful substances and impurities in the exhaust gas, and the separation filter screen 31 further filters fine particles. The dual filtration improves the cleanliness of the exhaust gas. At the same time, the separation filter screen 31 can prevent external impurities from entering the storage bin 5 through the exhaust port, ensuring the purity of the material.

[0037] The above description illustrates only certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A uniform feeding device for phosphorus pentachloride production, comprising a base (1), characterized in that, The base (1) is fixedly connected to U-shaped support seats (2) at both ends of the top. The base (1) is fixedly connected to one end of the top and to an L-shaped support plate (3). The top of the U-shaped support seats (2) at both ends is fixedly connected to a heat insulation jacket device (4). The top of the inner side wall of the heat insulation jacket device (4) is fixedly connected to a storage bin (5). The bottom output end of the storage bin (5) is fixedly connected to an electric valve (6). The other end of the electric valve (6) is fixedly connected to a buffer tank (7). The other end of the buffer tank (7) is fixedly connected to a Coriolis mass flow meter (8), the output end of the Coriolis mass flow meter (8) is fixedly connected to a plunger metering pump (9), the side wall of the L-shaped support plate (3) is fixedly connected to an injection pressurization pipe head (10) through an installation mechanism, the output ends of the injection pressurization pipe head (10) and the plunger metering pump (9) are both fixedly connected to threaded connection ends (11), the two ends of the threaded connection ends (11) are threadedly connected to a heat insulation pipe (12), the two ends of the heat insulation pipe (12) are provided with an anti-loosening mechanism between the threaded connection ends (11), the cavity of the storage bin (5) is fixedly connected to a support pipe (13), one end of the support pipe (13) is fixedly connected to a protective inert gas nozzle (14), one end of the top of the base (1) is fixedly connected to a nitrogen power supply device (15), the output end of the nitrogen power supply device (15) is fixedly connected to one end of the support pipe (13).

2. The uniform feeding device for phosphorus pentachloride production according to claim 1, characterized in that, The installation mechanism includes a limiting slot (16), a limiting plate (17), a limiting threaded opening (18), and a limiting screw (19). The side wall of the L-shaped support plate (3) has a limiting slot (16). The side wall of the injection pressurization pipe head (10) is fixedly connected to the limiting plate (17). The limiting plate (17) is engaged with the limiting slot (16). The side walls of the limiting plate (17) and the L-shaped support plate (3) have corresponding limiting threaded openings (18), and the limiting screw (19) is threadedly connected.

3. The uniform feeding device for phosphorus pentachloride production according to claim 1, characterized in that, The anti-loosening mechanism includes a locking hole (20), a limiting rod (21), a spring (22), and a handle (23). The side walls of the threaded connection ends (11) at both ends are provided with locking holes (20). The side wall cavities of the insulation pipes (12) at both ends are slidably connected to the limiting rods (21). The side walls of the limiting rods (21) at both ends are fixedly connected to the springs (22). One end of the limiting rods (21) at both ends is inserted into the locking hole (20), and the other end of the limiting rods (21) at both ends passes through the side wall of the insulation pipe (12) and is fixedly connected to the handle (23).

4. The uniform feeding device for phosphorus pentachloride production according to claim 1, characterized in that, The heat insulation jacket device (4) is a hollow heat insulation oil jacket, and the two ends of the side wall are respectively fixedly connected with an oil inlet connection pipe (24) and an oil outlet connection pipe (25).

5. A uniform feeding device for phosphorus pentachloride production according to claim 1, characterized in that, A feed valve (26) is fixedly connected to one end of the top of the storage bin (5), a safety exhaust valve (27) is fixedly connected to the other end of the top of the storage bin (5), and a filter tank (28) is fixedly connected to the other end of the safety exhaust valve (27).

6. The uniform feeding device for phosphorus pentachloride production according to claim 1, characterized in that, The buffer tank (7) is a tank body, and a spiral cavity is provided inside the cavity. The surface of the protective inert gas nozzle (14) is provided with multiple nozzle holes (29).

7. A uniform feeding device for phosphorus pentachloride production according to claim 5, characterized in that, The filter tank (28) is a tank body, and a filter filling layer (30) is fixedly connected inside the cavity. A separation filter screen (31) is fixedly connected to the top of the filter tank (28).

Images