Yellow phosphorus tail gas waste heat recycling device

Abstract

The utility model discloses a yellow phosphorus tail gas waste heat recycling device, and relates to the technical field of recycling devices, the yellow phosphorus tail gas waste heat recycling device comprises a heat recycling box, the right side face of the heat recycling box is fixedly connected with a waste gas recycling box, and the upper end of the left side face of the heat recycling box is fixedly connected with a heat recycling mechanism; the top of the waste gas recycling box is fixedly connected with a dust falling mechanism, the heat recycling mechanism comprises a first water pump, the right side of the first water pump is fixedly connected with the upper end of the left side face of the heat recycling box, and the output end of the first water pump is fixedly connected with a water outlet pipe. According to the yellow phosphorus tail gas waste heat recycling device, the arranged heat recycling pipe completely makes contact with cooling water, then heat of yellow phosphorus tail gas is transmitted to the cooling water, the cooling water with the temperature increased can be recycled in cooperation with use of the first water pump, waste of resources is reduced, and the environment is protected. And dust particles in the yellow phosphorus tail gas can be absorbed by water through the first exhaust pipe.

Description

Technical Field

[0001] The utility model relates to the technical field of recycling devices, in particular to a yellow phosphorus tail gas waste heat recycling device. Background Art

[0002] Yellow phosphorus is a 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. The tail gas generated during the process of extracting phosphorus from phosphate rock becomes yellow phosphorus tail gas. Directly discharging yellow phosphorus tail gas will not only cause environmental pollution, but also waste resources. Therefore, a recycling system will be used to treat the high-temperature yellow phosphorus tail gas.

[0003] For example, the Chinese patent with publication number CN214019835U discloses a yellow phosphorus tail gas purification waste heat recovery system, including a heat recovery box, a spray box and a purification box, the inner cavity of the heat recovery box is penetrated by a coil, the top of the inner cavity of the heat recovery box is connected to an air supply pipe, the top of the air supply pipe penetrates to the top of the heat recovery box and is fixedly connected to a steam pipe, the bottom of the inner cavity of the spray box is fixedly connected to a collection frame, and the rear side of the inner cavity of the collection frame is connected to a sewage pipe. The utility model is provided with a coil, a through hole, a through pipe, a discharge pipe, a mesh plate, an air outlet pipe, an electric push rod, a collection funnel, a water pump, a water outlet pipe, an outer sheath, a steam pipe, an air supply pipe, a fixed pipe, a windmill blade, a spray hole, an inner sheath and a through groove for use, and has the advantage of uniform dust reduction, solves the problem that the existing recycling system has poor treatment effect, cannot evenly reduce dust on phosphorus smoke, has a general dust reduction effect, and reduces the practicality of the recycling system.

[0004] The existing technology has the following problems:

[0005] The emission of existing yellow phosphorus tail gas is often accompanied by a large amount of heat. Direct emission will cause a certain degree of waste. At the same time, the existing recycling and utilization devices cannot evenly reduce the dust of phosphorus smoke, which reduces the practicality of the recycling and utilization devices. Utility Model Content

[0006] The utility model provides a yellow phosphorus tail gas waste heat recovery and utilization device to solve the problems raised in the above background technology.

[0007] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0008] A yellow phosphorus tail gas waste heat recovery device comprises a heat recovery box, a waste gas recovery box is fixedly connected to the right side of the heat recovery box, a heat recovery mechanism is fixedly connected to the upper end of the left side of the heat recovery box, and a dust reduction mechanism is fixedly connected to the top of the waste gas recovery box.

[0009] Preferably: the heat recovery mechanism includes a water pump 1, the right side of the water pump 1 is fixedly connected to the upper end of the left side surface of the heat recovery box, the output end of the water pump 1 is fixedly connected to a water outlet pipe, the upper end of the left side surface of the heat recovery box is fixedly connected to a water suction pipe, the bottom of the inner wall of the heat recovery box is fixedly connected to an air intake pipe, the left end of the air intake pipe passes through the bottom of the left side of the heat recovery box, the right end of the air intake pipe is fixedly connected to a heat recovery pipe, and the top right side of the heat recovery box is fixedly connected to a water inlet 1.

[0010] Preferably, the left side of the upper end of the water suction pipe passes through the upper end of the left side of the heat recovery tank and is fixedly connected to the input end of the water pump 1, and the lower end of the water suction pipe is in an inclined shape.

[0011] Preferably: the dust reduction mechanism includes an air pump and a purification plate, the bottom of the air pump is fixedly connected to the right side of the top of the exhaust gas recovery box, the outer surface of the purification plate is fixedly connected to the upper end of the inner wall of the exhaust gas recovery box, the input end of the air pump is fixedly connected with an air guide pipe, the left end of the air guide pipe is fixedly connected to the left side of the top of the exhaust gas recovery box, the left side of the bottom of the inner wall of the exhaust gas recovery box is fixedly connected with exhaust pipe 1, the right side of the exhaust gas recovery box is fixedly connected with water injection port 2, and the output end of the air pump is fixedly connected with exhaust pipe 2.

[0012] Preferably: an air outlet pipe is fixedly connected to the right side of the upper end of the heat recovery pipe, and the right end of the air outlet pipe passes through the right side of the heat recovery box and the left side of the exhaust gas recovery box and is fixedly connected to the top of the exhaust pipe 1.

[0013] Preferably, five air outlet holes are provided on the right side of an outer surface of the exhaust pipe in a linear array, and the inner walls of the five air outlet holes are fixedly connected with exhaust grooves.

[0014] Preferably, a rubber pad is fixedly connected to the left end of the purification plate, and the inner wall of the rubber pad is fixedly connected to the lower end of the outer surface of the air outlet pipe.

[0015] Preferably, three air intake pipes are fixedly connected to the bottom of the air guide pipe, and the bottoms of the three air intake pipes are all conical.

[0016] Due to the adoption of the above technical solution, the utility model has achieved the following technical progress compared with the prior art:

[0017] 1. The utility model provides a yellow phosphorus tail gas waste heat recovery and utilization device, in which a heat recovery pipe is completely in contact with cooling water, thereby transmitting the heat of the yellow phosphorus tail gas to the cooling water. In conjunction with the use of a water pump, the cooling water with increased temperature can be recovered and utilized, thereby reducing the waste of resources.

[0018] 2. The utility model provides a yellow phosphorus tail gas waste heat recovery and utilization device. Through the exhaust pipe that is set, the dust particles in the yellow phosphorus tail gas can be absorbed by water. At the same time, the yellow phosphorus tail gas can be purified through the purification plate. With the use of an air pump, the dust reduction and purification of the yellow phosphorus tail gas can be completed and successfully recovered. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0020] Figure 2 This is a schematic diagram of the heat recovery mechanism structure of the utility model;

[0021] Figure 3 This is a schematic diagram of the dust reduction mechanism structure of the utility model;

[0022] Figure 4 This is a schematic diagram of the sealing assembly structure of the utility model;

[0023] Figure 5 This is a schematic diagram of the structure of the dust reduction component of the utility model.

[0024] In the figure: 1. heat recovery box; 2. exhaust gas recovery box; 3. heat recovery mechanism; 4. dust suppression mechanism; 31. air inlet pipe; 32. heat recovery pipe; 33. air outlet pipe; 34. water injection port 1; 35. water suction pipe; 36. water pump 1; 37. water outlet pipe; 40. air outlet; 41. purification plate; 42. rubber pad; 43. exhaust pipe 1; 44. exhaust groove; 45. water injection port 2; 46. air pump; 47. air guide pipe; 48. air suction pipe; 49. exhaust pipe 2. DETAILED DESCRIPTION

[0025] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0026] like Figure 1 As shown, a yellow phosphorus tail gas waste heat recovery and utilization device includes a heat recovery box 1, a waste gas recovery box 2 is fixedly connected to the right side of the heat recovery box 1, a heat recovery mechanism 3 is fixedly connected to the upper end of the left side of the heat recovery box 1, and a dust reduction mechanism 4 is fixedly connected to the top of the waste gas recovery box 2.

[0027] It should be noted that the heat recovery pipe 32 is completely in contact with the cooling water, and the heat of the yellow phosphorus tail gas is transferred to the cooling water. With the use of a water pump 36, the cooling water with increased temperature can be recycled, thereby reducing the waste of resources. The dust particles in the yellow phosphorus tail gas can be absorbed by water through the exhaust pipe 43. At the same time, the yellow phosphorus tail gas can be purified through the purification plate 41. With the use of the air pump 46, the dust reduction and purification of the yellow phosphorus tail gas can be completed and successfully recovered.

[0028] like Figure 2 As shown, the heat recovery mechanism 3 includes a water pump 36, the right side of the water pump 36 is fixedly connected to the upper end of the left side surface of the heat recovery box 1, the output end of the water pump 36 is fixedly connected to a water outlet pipe 37, the upper end of the left side surface of the heat recovery box 1 is fixedly connected to a water suction pipe 35, the bottom of the inner wall of the heat recovery box 1 is fixedly connected to an air intake pipe 31, the left end of the air intake pipe 31 passes through the bottom of the left side of the heat recovery box 1, the right end of the air intake pipe 31 is fixedly connected to a heat recovery pipe 32, and the top right side of the heat recovery box 1 is fixedly connected to a water injection port 34.

[0029] It should be noted that first, cooling water is added to the heat recovery box 1 through the water injection port 34. The added cooling water needs to cover the height of the heat recovery pipe 32, and then the yellow phosphorus tail gas is discharged into the air intake pipe 31. The tail gas enters the heat recovery pipe 32 through the air intake pipe 31. The heat recovery pipe 32 is fully in contact with the cooling water, and then the heat carried by the yellow phosphorus tail gas is absorbed, and then the cooling water is heated to achieve heat recovery of the yellow phosphorus tail gas. When the discharge is completed, the temperature of the cooling water is also improved to a certain extent. At this time, the water pump 36 is started to make the water suction pipe 35 generate a certain suction force. The bottom of the water suction pipe 35 is inclined and in contact with the bottom of the heat recovery box 1, ensuring that the cooling water inside the heat recovery box 1 can be completely absorbed without excessive residue.

[0030] like Figure 2 As shown, the left side of the upper end of the water suction pipe 35 passes through the upper end of the left side of the heat recovery box 1 and is fixedly connected to the input end of the water pump 1 36, and the lower end of the water suction pipe 35 is in an inclined shape.

[0031] It should be noted that the bottom of the water absorption pipe 35 is in an inclined shape and contacts the bottom of the heat recovery tank 1 , thereby ensuring that the cooling water inside the heat recovery tank 1 can be completely absorbed without excessive residue.

[0032] like Figure 3-Figure 5 As shown, the dust reduction mechanism 4 includes an air pump 46 and a purification plate 41, the bottom of the air pump 46 is fixedly connected to the right side of the top of the exhaust gas recovery box 2, the outer surface of the purification plate 41 is fixedly connected to the upper end of the inner wall of the exhaust gas recovery box 2, the input end of the air pump 46 is fixedly connected to an air guide pipe 47, the left end of the air guide pipe 47 is fixedly connected to the left side of the top of the exhaust gas recovery box 2, the left side of the bottom of the inner wall of the exhaust gas recovery box 2 is fixedly connected to an exhaust pipe 1 43, the right side of the exhaust gas recovery box 2 is fixedly connected to a water injection port 2 45, and the output end of the air pump 46 is fixedly connected to an exhaust pipe 2 49.

[0033] It should be noted that the exhaust gas after heat recovery enters the exhaust pipe 1 43 through the outlet pipe 33. At this time, water is added to the exhaust gas recovery box 2 through the water injection port 2 45. The height of the water will submerge the exhaust pipe 1 43 but will not touch the purification plate 41. The exhaust gas is continuously discharged and then discharged into the exhaust gas recovery box 2 through the exhaust groove 44. The exhaust gas contacts with the water, and then the dust is adhered to the water. The exhaust gas is insoluble in water, and then continues to rise, and reaches the upper area of ​​the exhaust gas recovery box 2 after being purified by the purification plate 41. The purification plate 41 has good adsorption. , which can purify fine impurities in the exhaust gas. The rubber pad 42 arranged at the left end of the purification plate 41 ensures the stability of the outlet pipe 33 and the exhaust pipe 1 43, so that they will not be damaged and detached due to vibration. At this time, the air pump 46 is started, so that the air guide pipe 47 generates a certain suction force, and then the three suction pipes 48 generate a certain suction force. The bottom of the suction pipe 48 is conical and the bottom diameter is larger, so as to ensure better suction capacity, so that the purified exhaust gas can be absorbed more smoothly, and finally the gas is recovered through the exhaust pipe 2 49.

[0034] like Figure 2 , Figure 3 As shown, the right side of the upper end of the heat recovery pipe 32 is fixedly connected with an outlet pipe 33, and the right end of the outlet pipe 33 passes through the right side of the heat recovery box 1 and the left side of the exhaust gas recovery box 2 and is fixedly connected to the top of the exhaust pipe 43.

[0035] It should be noted that the exhaust gas after heat recovery enters the exhaust pipe 43 through the outlet pipe 33, and the exhaust gas after heat recovery is immediately purified and recovered, which greatly speeds up the work efficiency.

[0036] like Figure 3 , Figure 5 As shown, five air outlet holes 40 are provided in a linear array on the right side of the outer surface of the exhaust pipe 1 43 , and the inner walls of the five air outlet holes 40 are fixedly connected with exhaust grooves 44 .

[0037] It should be noted that the exhaust pipe 43 is completely immersed in water, and the exhaust gas is discharged into the exhaust gas recovery box 2 through the exhaust groove 44, which can reduce the generation of bubbles and prevent water from splashing to the bottom of the purification plate 41, thereby affecting the purification effect.

[0038] like Figure 3 , Figure 4 As shown, a rubber pad 42 is fixedly connected to the left end of the purification plate 41 , and an inner wall of the rubber pad 42 is fixedly connected to the lower end of the outer surface of the air outlet pipe 33 .

[0039] It should be noted that a rubber pad 42 is provided at the left end of the purification plate 41, which has good ductility and sealing properties, ensuring the stability of the air outlet pipe 33 and the exhaust pipe 43 so that they will not be damaged or detached due to vibration.

[0040] like Figure 3 As shown, three air intake pipes 48 are fixedly connected to the bottom of the air guide pipe 47, and the bottoms of the three air intake pipes 48 are all conical.

[0041] It should be noted that the bottom of the air intake pipe 48 is conical and has a larger bottom diameter, thereby ensuring a better air intake capability and allowing the purified exhaust gas to be absorbed more smoothly.

[0042] The working principle of the utility model is as follows: first, cooling water is added to the heat recovery tank 1 through the water injection port 34. The added cooling water needs to cover the height of the heat recovery pipe 32, and then the yellow phosphorus tail gas is discharged into the air intake pipe 31. The tail gas enters the heat recovery pipe 32 through the air intake pipe 31. The heat recovery pipe 32 is fully in contact with the cooling water, and then the heat carried by the yellow phosphorus tail gas is absorbed, and then the cooling water is heated to achieve the recovery of the heat of the yellow phosphorus tail gas. When the discharge is completed, the temperature of the cooling water is also improved to a certain extent. At this time, the water pump 36 is started to make the water suction pipe 35 generate a certain suction force. The bottom of the water suction pipe 35 is inclined and contacts with the bottom of the heat recovery tank 1, ensuring that the cooling water inside the heat recovery tank 1 can be completely absorbed without excessive residue, so that the heated cooling water flows upward through the water suction pipe 35, and finally flows to the desired place through the water outlet pipe 37. The tail gas after heat recovery enters the exhaust pipe 43 through the outlet pipe 33. At this time, through the injection port 34, the heat recovery pipe 34 is connected to the exhaust pipe 43. The water inlet 2 45 adds water to the exhaust gas recovery box 2. The height of the water will submerge the exhaust pipe 1 43 but will not touch the purification plate 41. The exhaust gas is continuously discharged and then discharged into the exhaust gas recovery box 2 through the exhaust groove 44. The exhaust gas contacts with the water and then the dust is adhered to the water, while the exhaust gas is insoluble in water and then continues to rise. After being purified by the purification plate 41, it reaches the upper area of ​​the exhaust gas recovery box 2. The purification plate 41 has excellent adsorption properties and can purify fine impurities in the exhaust gas. The rubber pad 42 arranged at the left end of the purification plate 41 ensures the stability of the exhaust pipe 33 and the exhaust pipe 1 43 so that they will not be damaged and detached due to vibration. At this time, the air pump 46 is started, so that the air guide pipe 47 generates a certain suction force, and then the three suction pipes 48 generate a certain suction force. The bottom of the suction pipe 48 is conical and the bottom diameter is larger, so as to ensure better suction capacity, so that the purified exhaust gas is more smoothly absorbed, and finally the gas is recovered through the exhaust pipe 2 49.

[0043] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A yellow phosphorus tail gas waste heat recovery device, comprising a heat recovery box (1), characterized in that: The right side of the heat recovery box (1) is fixedly connected to an exhaust gas recovery box (2), the upper end of the left side of the heat recovery box (1) is fixedly connected to a heat recovery mechanism (3), and the top of the exhaust gas recovery box (2) is fixedly connected to a dust reduction mechanism (4); The heat recovery mechanism (3) comprises a water pump (36), the right side of the water pump (36) being fixedly connected to the upper end of the left side of the heat recovery box (1), the output end of the water pump (36) being fixedly connected to a water outlet pipe (37), the upper end of the left side of the heat recovery box (1) being fixedly connected to a water suction pipe (35), the bottom of the inner wall of the heat recovery box (1) being fixedly connected to an air intake pipe (31), the left end of the air intake pipe (31) passing through the bottom of the left side of the heat recovery box (1), the right end of the air intake pipe (31) being fixedly connected to a heat recovery pipe (32), the top right side of the heat recovery box (1) being fixedly connected to a water injection port (34), the left side of the upper end of the water suction pipe (35) passing through the upper end of the left side of the heat recovery box (1) and being fixedly connected to the input end of the water pump (36), and the lower end of the water suction pipe (35) being in the shape of an inclined surface; The dust reduction mechanism (4) comprises an air pump (46) and a purification plate (41), the bottom of the air pump (46) is fixedly connected to the right side of the top of the waste gas recovery box (2), the outer surface of the purification plate (41) is fixedly connected to the upper end of the inner wall of the waste gas recovery box (2), the input end of the air pump (46) is fixedly connected to an air guide pipe (47), the left end of the air guide pipe (47) is fixedly connected to the left side of the top of the waste gas recovery box (2), the left side of the bottom of the inner wall of the waste gas recovery box (2) is fixedly connected to an exhaust pipe 1 (43), the right side of the waste gas recovery box (2) is fixedly connected to a water injection port 2 (45), and the output end of the air pump (46) is fixedly connected to an exhaust pipe 2 (49).

2. A yellow phosphorus tail gas waste heat recovery and utilization device according to claim 1, characterized in that: The right side of the upper end of the heat recovery pipe (32) is fixedly connected to an outlet pipe (33), and the right end of the outlet pipe (33) passes through the right side of the heat recovery box (1) and the left side of the exhaust gas recovery box (2) and is fixedly connected to the top of the exhaust pipe 1 (43).

3. A yellow phosphorus tail gas waste heat recovery and utilization device according to claim 1, characterized in that: The right side of the outer surface of the exhaust pipe 1 (43) is provided with five air outlet holes (40) in a linear array, and the inner walls of the five air outlet holes (40) are all fixedly connected with exhaust grooves (44).

4. A yellow phosphorus tail gas waste heat recovery and utilization device according to claim 1, characterized in that: The left end of the purification plate (41) is fixedly connected to a rubber pad (42), and the inner wall of the rubber pad (42) is fixedly connected to the lower end of the outer surface of the air outlet pipe (33).

5. The yellow phosphorus tail gas waste heat recovery and utilization device according to claim 1 is characterized in that: The bottom of the air guide pipe (47) is fixedly connected to three air suction pipes (48), and the bottoms of the three air suction pipes (48) are all conical.

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