Phosphorus sludge distillation recovery device
By designing a detachable water sealing device, the problem of fixing and difficult to replace the water sealing device in the prior art is solved, and convenient transportation of phosphorus elements and efficient use of equipment are achieved.
Patent Information
- Application Number
- CN202421877341.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-05
- Publication Date
- 2025-05-30
- Estimated Expiration
- 2034-08-05
AI Technical Summary
The existing water sealing device of the mud phosphorus distillation and recycling device cannot be disassembled, resulting in the need of secondary transportation of phosphorus elements, which increases the difficulty of operation.
A removable water sealing device is designed, including a removable water sealing tower, anti-countercurrent check valve and removable connection mechanism, which can achieve stable connection and convenient disassembly through corrosion-resistant sealing gaskets and U-shaped fixing grooves.
It realizes convenient replacement of water sealing devices and safe transport of phosphorus elements, reduces operation difficulty and improves the efficiency of equipment use.
Smart Images
Figure CN222918130U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of sludge phosphorus recovery, in particular to a sludge phosphorus distillation recovery device. Background Art
[0002] During the production of yellow phosphorus by the electrothermal method, sludge phosphorus will be generated. The amount of this sludge phosphorus accounts for about 7-15% of the product yellow phosphorus. The sludge phosphorus contains about 20-45% of elemental phosphorus, and the content of elemental phosphorus in the sludge phosphorus is between 20-70%. For the development of social recycling and reuse, people usually recycle the sludge phosphorus. Through the sludge phosphorus distillation method, the phosphorus element in the sludge phosphorus is refined again.
[0003] The existing sludge phosphorus distillation method usually uses a vacuum distillation device to heat the sludge phosphorus. In a vacuum state, the phosphorus element will quickly vaporize at a high temperature and enter the anti-corrosion pipeline through the air outlet of the vacuum distillation device. Through the transfer of the anti-corrosion pipeline, it enters the condensation device for liquefaction treatment (in order to prevent the reverse flow of phosphorus vapor, a one-way valve is usually set between the air outlet of the anti-corrosion pipeline and the air inlet of the condensation device. In order to prevent the reaction between the air in the condensation device and the phosphorus vapor, the condensation device is usually evacuated), and a water seal device is installed at the liquid outlet of the condensation device to store the phosphorus element. In order to connect the water seal device and the vacuum pumping device, a three-way pipeline is usually installed at the liquid outlet of the condensation device.
[0004] Although this method of the sludge phosphorus distillation recovery device can refine and recover phosphorus again, the water seal device for storing phosphorus is usually fixed at the outlet of the condensation device. As time goes by, the phosphorus element in the water seal device will continuously increase. In order to transfer the phosphorus in the water seal device, it is necessary to operate under water throughout the process (the ignition point temperature of phosphorus is too low) and cannot be directly in contact with air, which greatly increases the difficulty of transfer. Content of the Utility Model
[0005] The technical problem to be solved by the utility model is that the water seal device of the existing sludge phosphorus distillation recovery device cannot be replaced, and the phosphorus element needs to be transferred twice.
[0006] To solve the above technical problems, the technical solution provided by the present utility model is as follows: A mud phosphorus distillation and recovery device, including a vacuum distillation device, an anti-corrosion pipeline is provided at the air outlet of the vacuum distillation device, a condensation device is provided at the air outlet of the anti-corrosion pipeline, the condensation device is connected to the air outlet of the anti-corrosion pipeline through a one-way valve, a water seal device and a vacuum pumping device are provided at the liquid outlet of the condensation device, both the water seal device and the vacuum pumping device are connected to the liquid outlet of the condensation device through a three-way pipeline, the water seal device is a detachable device, the water seal device includes a detachable water seal tower, a reverse flow prevention one-way valve located on one side of the water inlet of the detachable water seal tower, and a detachable connection mechanism connecting the liquid outlet of the three-way pipeline and the liquid inlet of the reverse flow prevention one-way valve, the reverse flow prevention one-way valve is connected to the water inlet of the detachable water seal tower through a waterproof gasket, the detachable connection mechanism includes a hollow fixed disk A located at the liquid inlet of the reverse flow prevention one-way valve, a hollow fixed disk B located at the liquid outlet of the three-way pipeline, and a corrosion-resistant sealing gasket located between the hollow fixed disk A and the hollow fixed disk B, the corrosion-resistant sealing gasket passes through the hollow fixed disk A and the hollow fixed disk B, the outer walls of the liquid outlet of the three-way pipeline and the liquid inlet of the reverse flow prevention one-way valve are both connected to the inner through hole of the corrosion-resistant sealing gasket through body contact, the liquid inlet of the reverse flow prevention one-way valve is connected to the inner hole of the hollow fixed disk A and the liquid outlet of the three-way pipeline is connected to the inner hole of the hollow fixed disk B through welding, U-shaped fixing grooves are provided on the outer sides of the hollow fixed disk A and the hollow fixed disk B, both sides of the U-shaped fixing groove pass through the pipeline outer wall of the three-way pipeline and the pipeline outer wall of the reverse flow prevention one-way valve respectively, the side slot holes of the U-shaped fixing groove are connected to the pipeline outer wall of the reverse flow prevention one-way valve through welding, and the side slot holes of the U-shaped fixing groove are connected to the pipeline outer wall of the three-way pipeline through body contact.
[0007] As an improvement, the vacuum pipe orifice of the vacuum distillation device and the vacuum pipe orifice of the three-way pipeline are both connected to the vacuum pumping device through a vacuum pipeline.
[0008] As an improvement, the condensation device includes a condensation pipeline and a cooling water pipe located outside the condensation pipeline, the condensation pipeline and the cooling water pipe are connected through welding, and a condensation cavity is provided between the condensation pipeline and the cooling water pipe.
[0009] As an improvement, a cooling circulation device is provided on one side of the cooling water pipe, and the water inlet and water outlet of the cooling water pipe are both connected to the cooling circulation device through a cooling pipeline.
[0010] As an improvement, a taper support is provided below the condensation pipeline, and the outer wall of the condensation pipeline passes through the taper plate of the taper support.
[0011] As an improvement, the height of the liquid outlet of the condensation pipeline is lower than the height of the air inlet.
[0012] The advantages of the present utility model compared with the prior art are as follows: By means of the corrosion-resistant sealing gasket between the hollow fixed disk A and the hollow fixed disk B, the anti-backflow check valve on the water inlet side of the detachable water seal tower is connected to the liquid outlet of the three-way pipe. The hollow fixed disk A and the hollow fixed disk B are fixed through the U-shaped fixing groove. Since the side slot holes of the U-shaped fixing groove are connected to the outer wall of the pipe of the anti-backflow check valve by welding, the inner hole of the hollow fixed disk A is welded to the outer wall of the liquid inlet of the anti-backflow check valve, and the inner hole of the hollow fixed disk B is welded to the outer wall of the liquid outlet of the three-way pipe, the stability of the hollow fixed disk A and the hollow fixed disk B is ensured. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 is the top view of the overall structure of a phosphorus mud distillation and recovery device of the present utility model.
[0014] Figure 2 is the front view of the overall structure of a phosphorus mud distillation and recovery device of the present utility model.
[0015] Figure 3 is the cross-sectional view of the condensation device of a phosphorus mud distillation and recovery device of the present utility model.
[0016] Figure 4 is the exploded view of the detachable connection mechanism of a phosphorus mud distillation and recovery device of the present utility model.
[0017] Figure 5 is the cross-sectional view of the detachable connection mechanism of a phosphorus mud distillation and recovery device of the present utility model.
[0018] As shown in the figure: 1. Vacuum distillation device; 11. Anti-corrosion pipe; 2. Condensation device; 21. Condensation pipe; 22. Cooling water pipe; 23. Condensation cavity; 24. Cooling circulation device; 3. Check valve; 4. Water seal device; 41. Detachable water seal tower; 42. Anti-backflow check valve; 43. Detachable connection mechanism; 431. Hollow fixed disk A; 432. Hollow fixed disk B; 433. Corrosion-resistant sealing gasket; 434. U-shaped fixing groove; 5. Vacuum pumping device; 6. Three-way pipe; 7. Tapered bracket. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0019] The present utility model will be further described in detail below with reference to the accompanying drawings.
[0020] As shown in the instruction manual appendix Figure 1 、 2As shown in FIGS. 3, it includes a vacuum distillation device 1. An anti-corrosion pipeline 11 is provided at the air outlet of the vacuum distillation device 1. A condensation device 2 is provided at the air outlet of the anti-corrosion pipeline 11. The condensation device 2 includes a condensation pipeline 21 and a cooling water pipe 22 located outside the condensation pipeline 21. The condensation pipeline 21 is connected to the cooling water pipe 22 by welding. A condensation cavity 23 is provided in the condensation pipeline 21 and the cooling water pipe 22. A cooling circulation device 24 is provided on one side of the cooling water pipe 22. The water inlet and outlet of the cooling water pipe 22 are both connected to the cooling circulation device 24 through a cooling pipeline. Under the circulating action of the cooling liquid in the condensation cavity 23 in the cooling circulation device 24, the phosphorus vapor is quickly condensed into a liquid state.
[0021] The condensation device 2 is connected to the air outlet of the anti-corrosion pipeline 11 through a one-way valve 3 to prevent the phosphorus vapor from flowing back through the one-way valve 3. A taper bracket 7 is provided below the condensation pipeline 21. The outer wall of the condensation pipeline 21 passes through the taper plate of the taper bracket 7. The height of the liquid outlet of the condensation pipeline 21 is lower than the height of the air inlet. Through the tapered placement of the condensation pipeline 21, the condensed phosphorus liquid can flow out by gravity. A water seal device 4 and a vacuum pumping device 5 are provided at the liquid outlet of the condensation device 2. The water seal device 4 and the vacuum pumping device 5 are both connected to the liquid outlet of the condensation device 2 through a tee pipeline 6. The vacuum pipe orifice of the vacuum distillation device 1 and the vacuum pipe orifice of the tee pipeline 6 are both connected to the vacuum pumping device 5 through a vacuum pipeline. The air in the condensation pipeline 21 is pumped out by the vacuum pumping device 5 to prevent the phosphorus vapor from reacting with air by combustion.
[0022] As shown in the specification appendix Figure 2 、 4As shown in FIGS. 5, the water seal device 4 is a detachable device. The water seal device 4 includes a detachable water seal tower 41, a backflow prevention check valve 42 located on the water inlet side of the detachable water seal tower 41, and a detachable connection mechanism 43 connecting the liquid outlet of the three-way pipe 6 and the liquid inlet of the backflow prevention check valve 42. The backflow prevention check valve 42 prevents the preservation liquid from flowing back when the vacuum pumping device 5 pumps vacuum; the backflow prevention check valve 42 is connected to the water inlet of the detachable water seal tower 41 through a waterproof gasket. The detachable connection mechanism 43 includes a hollow fixed disk A 431 located at the liquid inlet of the backflow prevention check valve 42, a hollow fixed disk B 432 located at the liquid outlet of the three-way pipe 6, and a corrosion-resistant sealing gasket 433 located between the hollow fixed disk A 431 and the hollow fixed disk B 432. The corrosion-resistant sealing gasket 433 passes through the hollow fixed disk A 431 and the hollow fixed disk B 432. The outer wall of the liquid outlet of the three-way pipe 6 and the outer wall of the liquid inlet of the backflow prevention check valve 42 are both connected to the inner through hole of the corrosion-resistant sealing gasket 433 through body contact. The liquid inlet of the backflow prevention check valve 42 is connected to the inner hole of the hollow fixed disk A 431, and the liquid outlet of the three-way pipe 6 is connected to the inner hole of the hollow fixed disk B 432 through welding. The corrosion-resistant sealing gasket 433 ensures that the hollow fixed disk A 431 and the hollow fixed disk B 432 can be hermetically connected, and this structure is convenient for disassembly. U-shaped fixing grooves 434 are provided on the outer sides of the hollow fixed disk A 431 and the hollow fixed disk B 432. The two sides of the U-shaped fixing grooves 434 respectively pass through the pipe outer wall of the three-way pipe 6 and the pipe outer wall of the backflow prevention check valve 42. The side slot holes of the U-shaped fixing grooves 434 are connected to the pipe outer wall of the backflow prevention check valve 42 through welding, and the side slot holes of the U-shaped fixing grooves 434 are connected to the pipe outer wall of the three-way pipe 6 through body contact. Through the fixation of the U-shaped fixing grooves 434, the position deviation of the hollow fixed disk A 431 and the hollow fixed disk B 432 is avoided.
[0023] During the specific implementation of the utility model, the vacuum port of the vacuum distillation device 1 and the vacuum port on one side of the three-way pipe 6 are connected by using a vacuum pipe; the condensation pipe 21 is inserted into the inner hole of the cooling water pipe 22, and is welded by using an electric welding device; the water inlet and the water outlet of the cooling water pipe 22 are respectively connected to the water inlet and the water outlet of the cooling circulation device 24 by using a cooling pipe; one side of the three-way pipe 6 is inserted into the water outlet of the condensation pipe 21, and is connected by using a waterproof gasket; the one-way valve 3 is fixed to the water inlet of the condensation pipe 21 by using a waterproof gasket (the opening direction of the one-way valve 3 is the water inlet of the condensation pipe 21); the air inlet and the water outlet of the condensation pipe 21 are placed in the slot of the tapered bracket 7 (the height of the liquid outlet of the condensation pipe 21 is lower than the height of the air inlet); the anti-corrosion pipe 11 is respectively fixed to the air inlet of the one-way valve 3 and the air outlet of the vacuum distillation device 1 by using a corrosion-resistant sealing ring; Fix the anti-backflow one-way valve 42 to the water inlet of the detachable water seal tower 41 using a waterproof gasket, and inject a certain amount of water into the detachable water seal tower 41 (the water level is higher than the water inlet of the detachable water seal tower 41); put the central through hole of the hollow fixed disk A431 on the water inlet of the anti-backflow one-way valve 42, and weld the two using an electric welding device, put the central through hole of the hollow fixed disk B432 on the liquid outlet of the three-way pipe 6, and weld the two using an electric welding device, put the side groove of the U-shaped fixing groove 434 on the outer wall of the water inlet of the anti-backflow one-way valve 42, and weld it using an electric welding device, and fix the corrosion-resistant sealing gasket 433 in the internal groove of the hollow fixed disk B432; insert the U-shaped fixing groove 434 into the outer wall of the hollow fixing disk B432, so that the corrosion-resistant sealing gasket 433 is fixed in the internal grooves of the hollow fixing disk A431 and the hollow fixing disk B432.
[0024] When in use, start the vacuum pumping device 5 and the cooling circulation device 24 to cool the condensing pipe 21, use the vacuum pumping device 5 to extract the air in the condensing pipe 21 and the vacuum distillation device 1, and close the two after the vacuum pumping is completed (when vacuum pumping, the corrosion-resistant sealing gasket 433 is adsorbed on the outer wall of the pipe of the three-way pipe 6 and the outer wall of the pipe of the anti-backflow one-way valve 42 for sealing); start the vacuum distillation device 1, and under the evaporation of the vacuum distillation device 1, phosphorus vapor flows from the corrosion-resistant pipe 11 into the condensing pipe 21 for cooling, and after condensing into liquid, it relies on gravity to flow into the detachable water seal tower 41 for sealed storage. When the phosphorus element in the detachable water seal tower 41 is full, it is only necessary to break open the hollow fixed disk A431 and the hollow fixed disk B432 (the condensing pipe 21 is no longer in a negative pressure state under the action of phosphorus vapor), and insert the new water seal device 4 into the hollow fixed disk B for fixing (under low temperature conditions, phosphorus will not spontaneously combust in the air for a short time).
[0025] The above describes the present utility model and its implementation manners. Such description is not restrictive. What is shown in the drawings is only one of the implementation manners of the present utility model, and the actual structure is not limited thereto. In general, if those of ordinary skill in the art are inspired by it and, without departing from the gist of the creation of the present utility model, design similar structural modes and embodiments to this technical solution without creative efforts, they shall fall within the protection scope of the present utility model.
Claims
1. A sludge phosphorus distillation and recovery device, comprising a vacuum distillation device (1), the gas outlet of the vacuum distillation device (1) is provided with an anti-corrosion pipeline (11), the gas outlet of the anti-corrosion pipeline (11) is provided with a condensing device (2), the condensing device (2) is connected to the gas outlet of the anti-corrosion pipeline (11) through a one-way valve (3), the liquid outlet of the condensing device (2) is provided with a water seal device (4) and a vacuum pumping device (5), the water seal device (4) and the vacuum pumping device (5) are both connected to the liquid outlet of the condensing device (2) through a three-way pipeline (6), characterized in that: The water seal device (4) is a detachable device, comprising a detachable water seal tower (41), an anti-backflow check valve (42) located at one side of the water inlet of the detachable water seal tower (41), and a detachable connecting mechanism (43) connecting the liquid outlet of the three-way pipe (6) and the liquid inlet of the anti-backflow check valve (42); the anti-backflow check valve (42) is connected to the water inlet of the detachable water seal tower (41) via a waterproof gasket; the detachable connecting mechanism (43) comprises a hollow fixed disk A (431) located at the liquid inlet of the anti-backflow check valve (42), a hollow fixed disk B (432) located at the liquid outlet of the three-way pipe (6), and a corrosion-resistant sealing gasket (433) located between the hollow fixed disk A (431) and the hollow fixed disk B (432); the corrosion-resistant sealing gasket (433) passes through the hollow fixed disk A (431) and the hollow fixed disk B (432). ), the outer wall of the liquid outlet of the three-way pipe (6) and the outer wall of the liquid inlet of the anti-backflow check valve (42) are both connected to the internal through hole of the corrosion-resistant sealing gasket (433) through body contact, the liquid inlet of the anti-backflow check valve (42) and the inner hole of the hollow fixed disk A (431) and the liquid outlet of the three-way pipe (6) and the inner hole of the hollow fixed disk B (432) are both connected by welding, the outer sides of the hollow fixed disk A (431) and the hollow fixed disk B (432) are provided with a U-shaped fixing groove (434), the two sides of the U-shaped fixing groove (434) respectively pass through the outer wall of the three-way pipe (6) and the outer wall of the pipe of the anti-backflow check valve (42), the side slot hole of the U-shaped fixing groove (434) is connected to the outer wall of the pipe of the anti-backflow check valve (42) by welding, and the side slot hole of the U-shaped fixing groove (434) is connected to the outer wall of the pipe of the three-way pipe (6) through body contact.
2. A sludge phosphorus distillation recovery device according to claim 1, characterized in that: The vacuum pipe opening of the vacuum distillation device (1) and the vacuum pipe opening of the three-way pipe (6) are both connected to the vacuum extraction device (5) through a vacuum pipe.
3. A sludge phosphorus distillation recovery device according to claim 1, characterized in that: The condensing device (2) comprises a condensing pipe (21) and a cooling water pipe (22) located outside the condensing pipe (21); the condensing pipe (21) and the cooling water pipe (22) are connected by welding; and the condensing pipe (21) and the cooling water pipe (22) are provided with a condensing cavity (23).
4. A sludge phosphorus distillation recovery device according to claim 3, characterized in that: A cooling circulation device (24) is provided on one side of the cooling water pipe (22), and a water inlet and a water outlet of the cooling water pipe (22) are connected to the cooling circulation device (24) via a cooling pipeline.
5. A sludge phosphorus distillation recovery device according to claim 3, characterized in that: A tapered bracket (7) is provided below the condensation pipe (21), and the outer wall of the condensation pipe (21) passes through the tapered plate of the tapered bracket (7).
6. A sludge phosphorus distillation recovery device according to claim 5, characterized in that: The height of the liquid outlet of the condensation pipe (21) is lower than the height of the air inlet.