Tail gas recovery treatment device for producing yellow phosphorus based on yellow phosphorus furnace

Abstract

The utility model provides a tail gas recovery processing device for producing yellow phosphorus based on a yellow phosphorus furnace, which comprises a base, the upper surface of the base is fixedly connected with a yellow phosphorus furnace body and a processing box respectively, the top of the inner wall of the processing box is fixedly connected with a shunting disc, and the surface of the shunting disc is communicated with a tail gas pipe. And the other end of the tail gas pipe is communicated with the tail gas discharge end of the yellow phosphorus furnace body. According to the tail gas recovery treatment device for yellow phosphorus production based on the yellow phosphorus furnace, by closing a first valve on a second gas inlet pipe and a second valve on a second gas outlet pipe, a plurality of first bolts can be disassembled, then a sealing cover is opened, an activated carbon plate in an inner cavity of a second treatment tank can be conveniently taken out and replaced, and after replacement is completed, the tail gas is recycled. The first valve on the second air inlet pipe and the second valve on the second air outlet pipe are opened, then the first valve on the humidity sensor and the second valve on the first air outlet pipe are closed, and the operation is repeated, so that the activated carbon plate in the inner cavity of the first treatment tank can be replaced.

Description

Technical Field

[0001] The utility model relates to the technical field of yellow phosphorus production, in particular to a tail gas recovery and treatment device for yellow phosphorus production based on a yellow phosphorus furnace. Background Art

[0002] Yellow phosphorus, also known as white phosphorus, is a white or light yellow translucent solid. It is soft, brittle when cold, and darkens in color when exposed to light. When exposed to air, it produces green phosphorescence and white smoke in the dark. It ignites at about 40°C in moist air and slightly higher in dry air. Generally, when yellow phosphorus furnaces are used to prepare yellow phosphorus, toxic gases such as carbon monoxide will be emitted from the exhaust, and carbon monoxide will produce flames above the furnace body, posing certain safety hazards and not complying with relevant regulations of relevant departments.

[0003] Chinese patent CN211837105U discloses a tail gas recovery and treatment device for yellow phosphorus production based on a yellow phosphorus furnace. This technical solution starts a suction pump to suck carbon monoxide gas into a treatment box. The activated carbon plate and fiber board are arranged to absorb and dry the moisture in the carbon monoxide, making it convenient to use. The excess gas generated is also adsorbed and removed, increasing the concentration of carbon monoxide, thereby increasing the heating rate of hot water for yellow phosphorus product and refining, thereby realizing resource recycling and reuse.

[0004] However, the tail gas recovery and treatment device for yellow phosphorus production based on the yellow phosphorus furnace needs to replace the activated carbon plate with a high moisture content after long-term use during use. However, during the replacement process, the device needs to be shut down, which affects the production of yellow phosphorus and reduces the production and processing efficiency of yellow phosphorus.

[0005] Therefore, it is necessary to provide a new tail gas recovery and treatment device for producing yellow phosphorus based on a yellow phosphorus furnace to solve the above technical problems. Summary of the Invention

[0006] The utility model provides a tail gas recovery and treatment device for producing yellow phosphorus based on a yellow phosphorus furnace, and solves the technical problem that the tail gas recovery and treatment device for producing yellow phosphorus based on a yellow phosphorus furnace needs to be shut down during the replacement of activated carbon plates, thereby affecting the production of yellow phosphorus.

[0007] To solve the above technical problems, the utility model provides a tail gas recovery and treatment device for yellow phosphorus production based on a yellow phosphorus furnace, comprising a base, the upper surface of which is fixedly connected to the yellow phosphorus furnace body and a treatment box, respectively; a diverter plate is fixedly connected to the top of the inner wall of the treatment box; the surface of the diverter plate is connected to an tail gas pipe, and the other end of the tail gas pipe is connected to the exhaust end of the yellow phosphorus furnace body;

[0008] The inner wall of the treatment box is fixedly connected to a collecting plate, the inner cavity of the base is provided with a first treatment tank and a second treatment tank, and the upper part of the inner cavity of the first treatment tank and the second treatment tank is provided with an activated carbon plate;

[0009] The top of the first treatment tank is connected to the diverter plate through a first air inlet pipe, and the top of the second treatment tank is connected to the diverter plate through a second air inlet pipe. A first valve is provided on both the first air inlet pipe and the second air inlet pipe. The bottom of the first treatment tank is connected to the collecting plate through a first air outlet pipe, and the bottom of the second treatment tank is connected to the collecting plate through a second air outlet pipe. A second valve is provided on both the first air outlet pipe and the second air outlet pipe.

[0010] Preferably, surfaces of the first processing tank and the second processing tank are both detachably connected to sealing covers via a plurality of first bolts, and inner surfaces of the sealing covers are fixedly connected to sealing members.

[0011] Preferably, the surface of the processing box is connected to a rear inspection cover by disassembling a plurality of second bolts.

[0012] Preferably, a fiberboard is provided at the lower portion of the inner cavity of the first treatment tank.

[0013] Preferably, a first solenoid valve is provided on the tail gas pipe, and a humidity sensor is provided on both the first treatment tank and the second treatment tank.

[0014] Preferably, the surface of the collecting plate is connected to an exhaust pipe, the other end of the exhaust pipe extends to the outside of the processing box and is connected to a negative pressure device, and a second solenoid valve is provided on the exhaust pipe.

[0015] Compared with the related art, the tail gas recovery and treatment device for yellow phosphorus production based on the yellow phosphorus furnace provided by the utility model has the following beneficial effects:

[0016] The utility model provides a tail gas recovery and treatment device for yellow phosphorus production based on a yellow phosphorus furnace. After the tail gas passes through the inner cavities of a first treatment tank and a second treatment tank, the water in the carbon monoxide can be adsorbed and dried by an activated carbon plate, which is beneficial to subsequent combustion. When the water content of the activated carbon plate is high and it needs to be replaced, the first valve on the second air inlet pipe and the second valve on the second air outlet pipe are closed, and a plurality of first bolts can be removed and then a sealing cover is opened to facilitate the removal and replacement operation of the activated carbon plate in the inner cavity of the second treatment tank. After the replacement is completed, the first valve on the second air inlet pipe and the second valve on the second air outlet pipe are opened, and then the first valve on the humidity sensor and the second valve on the first air outlet pipe are closed. The operation is repeated to replace the activated carbon plate in the inner cavity of the first treatment tank. The replacement operation is alternated, so that there is no need to stop the machine during the replacement process of the activated carbon plate, thereby improving the production and processing efficiency of yellow phosphorus and facilitating the production and use of yellow phosphorus. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic structural diagram of a preferred embodiment of a tail gas recovery and treatment device for yellow phosphorus production based on a yellow phosphorus furnace provided by the utility model;

[0018] Figure 2 for Figure 1 The schematic diagram of the structure of the processing box and the inspection cover shown;

[0019] Figure 3 for Figure 1 The structural diagram of the first treatment tank and the activated carbon plate shown;

[0020] Figure 4 for Figure 1 The schematic diagram of the structure of the yellow phosphorus furnace body and the processing box is shown.

[0021] Numbers in the figure: 1. Base; 2. Yellow phosphorus furnace body; 3. Processing box; 4. Tail pipe; 5. First solenoid valve; 6. Diverter plate; 7. First processing tank; 8. Activated carbon plate; 9. Fiberboard; 10. First air inlet pipe; 11. Second processing tank; 12. Second air inlet pipe; 13. First valve; 14. Collecting plate; 15. First air outlet pipe; 16. Second air outlet pipe; 17. Second valve; 18. Exhaust pipe; 19. Second solenoid valve; 20. Humidity sensor; 21. Sealing cover; 22. First bolt; 23. Second bolt; 24. Inspection cover; 25. Seal. DETAILED DESCRIPTION

[0022] The present invention will be further described below with reference to the accompanying drawings and implementation examples.

[0023] Please refer to Figure 1 、 Figure 2 、 Figure 3 and Figure 4 ,in, Figure 1 A schematic structural diagram of a preferred embodiment of a tail gas recovery and treatment device for yellow phosphorus production based on a yellow phosphorus furnace provided by the utility model; Figure 2 for Figure 1 The schematic diagram of the structure of the processing box and the inspection cover shown; Figure 3 for Figure 1 The structural diagram of the first treatment tank and the activated carbon plate shown; Figure 4 for Figure 1 The yellow phosphorus furnace body and treatment box are shown as a schematic diagram. The exhaust gas recovery and treatment device for yellow phosphorus production based on a yellow phosphorus furnace comprises a base 1, to the upper surface of which are fixedly connected the yellow phosphorus furnace body 2 and the treatment box 3. A diverter plate 6 is fixedly connected to the top of the inner wall of the treatment box 3. The surface of the diverter plate 6 is connected to an exhaust pipe 4, the other end of which is connected to the exhaust gas discharge port of the yellow phosphorus furnace body 2.

[0024] The inner wall of the treatment box 3 is fixedly connected with a collecting plate 14 , the inner cavity of the base 1 is provided with a first treatment tank 7 and a second treatment tank 11 , and the upper part of the inner cavity of the first treatment tank 7 and the second treatment tank 11 is provided with an activated carbon plate 8 .

[0025] The top of the first treatment tank 7 is connected to the diverter plate 6 through a first air inlet pipe 10 , and the top of the second treatment tank 11 is connected to the diverter plate 6 through a second air inlet pipe 12 . A first valve 13 is provided on both the first air inlet pipe 10 and the second air inlet pipe 12 .

[0026] The bottom of the first treatment tank 7 is connected to the collecting plate 14 through the first air outlet pipe 15, and the bottom of the second treatment tank 11 is connected to the collecting plate 14 through the second air outlet pipe 16. A second valve 17 is provided on the first air outlet pipe 15 and the second air outlet pipe 16. The surfaces of the first treatment tank 7 and the second treatment tank 11 are both connected to the sealing cover 21 by a plurality of first bolts 22 for disassembly. The surface of the treatment box 3 is connected to the rear inspection cover 24 by a plurality of second bolts 23 for disassembly.

[0027] After the tail gas passes through the inner cavities of the first treatment tank 7 and the second treatment tank 11, the activated carbon plate 8 can adsorb and dry the moisture in the carbon monoxide, which is beneficial to the subsequent combustion.

[0028] When the activated carbon plate 8 needs to be replaced due to a high water content, the inspection cover 24 can be opened by removing multiple second bolts 23, and the first valve 13 on the second air inlet pipe 12 and the second valve 17 on the second air outlet pipe 16 can be closed. After removing multiple first bolts 22, the sealing cover 21 can be opened to facilitate the removal and replacement of the activated carbon plate 8 in the inner cavity of the second treatment tank 11.

[0029] After the replacement is completed, open the first valve 13 on the second air inlet pipe 12 and the second valve 17 on the second air outlet pipe 16, then close the first valve 13 on the humidity sensor 20 and the second valve 17 on the first air outlet pipe 15, and repeat the operation to replace the activated carbon plate 8 in the inner cavity of the first treatment tank 7. The replacement operation is alternated so that there is no need to stop the machine during the replacement of the activated carbon plate 8, thereby improving the production and processing efficiency of yellow phosphorus and facilitating the production and use of yellow phosphorus.

[0030] A fiberboard 9 is provided at the lower portion of the inner cavity of the first processing tank 7 , and a sealing member 25 is fixedly connected to the inner side surface of the sealing cover 21 .

[0031] The fiberboard 9 facilitates filtering impurities in the carbon monoxide, and the sealing member 25 facilitates improving the sealing performance between the sealing cover 21 and the activated carbon plate 8 and the fiberboard 9 after installation.

[0032] A first solenoid valve 5 is provided on the exhaust pipe 4, and a humidity sensor 20 is provided on both the first treatment tank 7 and the second treatment tank 11. The first solenoid valve 5 is convenient for controlling the entry of exhaust gas, and the humidity sensor 20 is convenient for monitoring the humidity of carbon monoxide, thereby facilitating monitoring the status of the first treatment tank 7.

[0033] The surface of the collecting plate 14 is connected to an exhaust pipe 18 , the other end of the exhaust pipe 18 extends to the outside of the processing box 3 and is connected to the negative pressure device. A second solenoid valve 19 is provided on the exhaust pipe 18 .

[0034] The working principle of the tail gas recovery and treatment device for yellow phosphorus production based on the yellow phosphorus furnace provided by the utility model is as follows:

[0035] The humidity sensor 20 is convenient for monitoring the humidity of carbon monoxide, and then for monitoring the status of the first treatment tank 7. After the exhaust gas passes through the inner cavity of the first treatment tank 7 and the second treatment tank 11, the moisture in the carbon monoxide can be adsorbed and dried by the activated carbon plate 8, which is beneficial to subsequent combustion. When the water content of the activated carbon plate 8 is high and needs to be replaced, the first valve 13 on the second air inlet pipe 12 and the second valve 17 on the second air outlet pipe 16 are closed, and the multiple first bolts 22 can be removed, and the sealing cover 21 can be opened to facilitate the removal and replacement of the activated carbon plate 8 in the inner cavity of the second treatment tank 11. After the replacement is completed, the first valve 13 on the second air inlet pipe 12 and the second valve 17 on the second air outlet pipe 16 are opened, and then the first valve 13 on the humidity sensor 20 and the second valve 17 on the first air outlet pipe 15 are closed. Repeat the operation to replace the activated carbon plate 8 in the inner cavity of the first treatment tank 7.

[0036] Compared with the related art, the tail gas recovery and treatment device for yellow phosphorus production based on the yellow phosphorus furnace provided by the utility model has the following beneficial effects:

[0037] The utility model provides a tail gas recovery and treatment device for yellow phosphorus production based on a yellow phosphorus furnace. After the tail gas passes through the inner cavities of a first treatment tank 7 and a second treatment tank 11, the water in the carbon monoxide can be adsorbed and dried by an activated carbon plate 8, which is beneficial to subsequent combustion. When the water content of the activated carbon plate 8 is high and needs to be replaced, the first valve 13 on the second air inlet pipe 12 and the second valve 17 on the second air outlet pipe 16 are closed, and the plurality of first bolts 22 can be removed, and the sealing cover 21 can be opened to facilitate the removal and replacement operation of the activated carbon plate 8 in the inner cavity of the second treatment tank 11. After the replacement is completed, the first valve 13 on the second air inlet pipe 12 and the second valve 17 on the second air outlet pipe 16 are opened, and the first valve 13 on the humidity sensor 20 and the second valve 17 on the first air outlet pipe 15 are closed. The operation is repeated to replace the activated carbon plate 8 in the inner cavity of the first treatment tank 7. The replacement operation is alternated, so that there is no need to stop the machine during the replacement process of the activated carbon plate 8, thereby improving the production and processing efficiency of yellow phosphorus and facilitating the production and use of yellow phosphorus.

[0038] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the description and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A tail gas recovery and treatment device for yellow phosphorus production based on a yellow phosphorus furnace, comprising a base (1), characterized in that: The upper surface of the base (1) is fixedly connected to the yellow phosphorus furnace body (2) and the processing box (3), the top of the inner wall of the processing box (3) is fixedly connected to a diverter plate (6), the surface of the diverter plate (6) is connected to a tail gas pipe (4), and the other end of the tail gas pipe (4) is connected to the exhaust end of the yellow phosphorus furnace body (2); The inner wall of the treatment box (3) is fixedly connected to a collecting plate (14); the inner cavity of the base (1) is provided with a first treatment tank (7) and a second treatment tank (11); and the upper parts of the inner cavities of the first treatment tank (7) and the second treatment tank (11) are both provided with activated carbon plates (8); The top of the first treatment tank (7) is connected to the diverter plate (6) through a first air inlet pipe (10), and the top of the second treatment tank (11) is connected to the diverter plate (6) through a second air inlet pipe (12). A first valve (13) is provided on both the first air inlet pipe (10) and the second air inlet pipe (12). The bottom of the first treatment tank (7) is connected to the collecting plate (14) through a first air outlet pipe (15), and the bottom of the second treatment tank (11) is connected to the collecting plate (14) through a second air outlet pipe (16). A second valve (17) is provided on both the first air outlet pipe (15) and the second air outlet pipe (16).

2. The tail gas recovery and treatment device for producing yellow phosphorus based on a yellow phosphorus furnace according to claim 1, characterized in that: The surfaces of the first treatment tank (7) and the second treatment tank (11) are both detachably connected to sealing covers (21) via a plurality of first bolts (22), and the inner side surfaces of the sealing covers (21) are fixedly connected to sealing members (25).

3. The tail gas recovery and treatment device for producing yellow phosphorus based on a yellow phosphorus furnace according to claim 1, characterized in that: The surface of the processing box (3) is connected to a rear inspection cover plate (24) by means of a plurality of second bolts (23).

4. The tail gas recovery and treatment device for producing yellow phosphorus based on a yellow phosphorus furnace according to claim 1, characterized in that: A fiberboard (9) is provided at the lower portion of the inner cavity of the first processing tank (7).

5. The tail gas recovery and treatment device for producing yellow phosphorus based on a yellow phosphorus furnace according to claim 1, characterized in that: The tail gas pipe (4) is provided with a first solenoid valve (5), and the first processing tank (7) and the second processing tank (11) are both provided with a humidity sensor (20).

6. The tail gas recovery and treatment device for producing yellow phosphorus based on a yellow phosphorus furnace according to claim 1, characterized in that: The surface of the collecting plate (14) is connected to an exhaust pipe (18), the other end of which extends to the outside of the processing box (3) and is connected to a negative pressure device. A second solenoid valve (19) is provided on the exhaust pipe (18).

Images