A compound fertilizer granulation tail gas washing device

Abstract

The utility model belongs to the technical field of waste gas treatment equipment, and particularly relates to a compound fertilizer granulation tail gas washing device, comprising a tower body, wherein the lower part of the tower body is provided with an air inlet, the upper part of the tower body is provided with an exhaust port, the side of the tower body is provided with an inspection door that can be rotatably opened or closed, a tray filter connected to the inspection door is provided in the tower body, a spray device is provided above the tray filter, the spray device is connected to a liquid supply pipeline extending to the outside of the tower body, the liquid supply pipeline is connected to the liquid supply device, and the exhaust port pipeline is connected to a fan. The inspection door in the utility model can take out the tray filter after opening, so that the filler can be replaced conveniently, and the internal structure of the tower body can be cleaned very conveniently when the inspection door is opened.

Description

Technical Field

[0001] The utility model belongs to the technical field of waste gas treatment equipment, in particular to a compound fertilizer granulation tail gas washing device. Background Art

[0002] The compound fertilizer granulation tail gas scrubber is a device used to treat the tail gas generated in the compound fertilizer production process. In the process of compound fertilizer production, a large amount of tail gas will be generated, which contains a certain amount of dust, ammonia and other harmful gases. In order to reduce the pollution to the environment, these tail gases need to be treated.

[0003] The tail gas from compound fertilizer granulation is generally purified by washing to remove harmful substances in the tail gas. The purified tail gas can meet environmental emission standards. This device usually uses a washing tower, such as a desulfurization tower disclosed in the utility model patent with the authorization patent announcement number CN220802637U. The desulfurization tower includes a cylinder and an upper head and a lower head matched with the cylinder. The upper head and the lower head are respectively connected to the two ends of the cylinder. The upper head is provided with a gas outlet, and the bottom of the lower head is provided with a tower bottom liquid outlet; a gas distributor is provided in the cylinder, and the first reaction section is below the gas distributor; a desulfurization liquid distributor and a reaction section tower plate are provided in the middle section of the cylinder above the gas distributor, and the reaction section tower plate and the desulfurization liquid distributor are arranged in The second reaction section is formed in the desulfurization tower; the upper section of the cylinder is a washing section, which is provided with a washing liquid distributor, and a washing section tower plate or filled with fillers. However, after the washing tower has worked for a long time, the inside of the washing tower needs to be cleaned or the fillers need to be replaced, otherwise the exhaust gas purification effect will be affected. However, the existing equipment generally opens a small window at the filler layer when replacing the filler, which is not convenient for replacing the filler and is also inconvenient for cleaning. In order to solve the above problems, a compound fertilizer granulation tail gas washing device is needed that can facilitate the replacement of fillers and the cleaning of the inside of the tower. Summary of the invention

[0004] In view of the above problems, the utility model proposes a compound fertilizer granulation tail gas washing device, which well solves the problems of inconvenient cleaning of the inside of the tower body and inconvenient replacement of fillers in the prior art.

[0005] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is as follows: a compound fertilizer granulation tail gas washing device, comprising a tower body, the lower part of the tower body is provided with an air inlet, the upper part of the tower body is provided with an exhaust port, the side of the tower body is provided with a maintenance door that can be rotatably opened or closed, a tray filter connected to the maintenance door is provided in the tower body, a spray device is provided above the tray filter, the spray device is connected to a liquid supply pipe extending to the outside of the tower body, the liquid supply pipe is connected to the liquid supply device, and the exhaust port pipe is connected to a fan.

[0006] Furthermore, the tower body is cylindrical, and the outer wall of the tray filter is in contact with the inner wall of the tower body.

[0007] Furthermore, the inner wall of the tower body is provided with a sealing strip mounting block 1, the inner wall of the inspection door is provided with a sealing strip mounting block 2, the sealing strip mounting block 2 is fitted with the sealing strip mounting block 1, a sealing groove 1 is provided on the side where the sealing strip mounting block 2 or the sealing strip mounting block 1 is fitted, a sealing strip 1 is provided in the sealing groove 1, the upper and lower sides of the inspection door are both provided with sealing grooves 2, the sealing strip 2 is provided in the sealing groove 2, a sealing strip 3 is provided on the outer wall of the inspection door, and a sealing strip mounting block 4 is provided on the outer wall of the tower body, the sealing strip mounting block 3 is fitted with the sealing strip mounting block 4, a sealing groove 3 is provided on the side where the sealing strip mounting block 3 or the sealing strip mounting block 4 is fitted, and a sealing strip 3 is installed in the sealing groove 3.

[0008] Furthermore, the sealing strip mounting block three and the sealing strip mounting block four are provided with bolt holes at corresponding positions, and bolts are installed in the bolt holes.

[0009] Furthermore, the outer wall of the tray filter is provided with an escape opening, the shape of which matches the sealing strip mounting block 1, and the rear side of the sealing strip mounting block 1 is provided with a baffle connected to the inner wall of the tower body.

[0010] Furthermore, the tray filter includes a support fence and a filter, wherein the support fence is disposed around the filter and is fixedly connected to the filter.

[0011] Furthermore, a support platform is provided on the inner side surface of the inspection door, and a reinforcing plate is provided on the side of the tray filter connected to the inspection door, and the reinforcing plate is detachably connected to the support platform.

[0012] Furthermore, the spray device includes a support pipe, an auxiliary pipe and a plurality of atomizing nozzles, the support pipe is connected to the liquid supply pipe, the auxiliary pipe is symmetrically connected to the support pipe, and the plurality of atomizing nozzles are installed at the lower part of the auxiliary pipe.

[0013] Furthermore, a handle is provided on the outer side of the inspection door.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] The compound fertilizer tail gas washing device proposed by the utility model is provided with an inspection door which can be rotatably opened or closed on the side of the tower body, and cooperates with the tray filter connected to the inspection door, so that the tray filter is taken out after the inspection door is opened, which is convenient for replacing the filler. At the same time, after the inspection door is opened, the tray filter is taken out as a whole, and a larger inspection space can be obtained at this time, so that the internal structure of the tower body can be cleaned or the spray device can be maintained and serviced, making the equipment maintenance more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is the front view of the utility model;

[0017] Figure 2 It is a schematic diagram of the cross-section structure of the tower;

[0018] Figure 3 for Figure 1 A magnified view of the structure of the middle part A;

[0019] Figure 4 for Figure 2 A magnified view of the structure of the middle B section;

[0020] Figure 5 for Figure 2 Enlarged view of the structure of section C.

[0021] In the figure: 1. tower body; 2. air inlet; 3. exhaust port; 4. inspection door; 41. support platform; 5. tray filter; 51. support fence; 52. filter; 53. reinforcement plate; 6. spray device; 61. support pipe; 62. auxiliary pipeline; 7. liquid supply pipeline; 8. liquid supply device; 81. water pump; 82. liquid storage tank; 9. fan; 10. exhaust pipeline; 11. sealing strip installation block one; 12. sealing strip installation block two; 13. sealing groove one; 14. sealing groove two; 15. sealing strip installation block three; 16. sealing strip installation block four; 17. sealing groove three; 18. bolt; 19. avoidance; 20. baffle; 21. handle. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] like Figure 1-Figure 5As shown, a compound fertilizer granulation tail gas washing device comprises a tower body 1, which can be welded by alloy materials, an air inlet 2 is provided on the lower side of the tower body 1, and the air inlet 2 can be welded to an air inlet pipe, and the air inlet pipe is arranged at the exhaust gas output location, an exhaust port 3 is provided on the upper part of the tower body 1, an inspection window is provided on the side of the tower body 1, a rotating shaft is provided on one side of the inspection window, an inspection door 4 matched with the structure of the tower body 1 is installed in the inspection window, an axial hole is provided on one side of the inspection door 4, and the axial hole is sleeved on the rotating shaft so that the inspection door 4 and the tower body 1 are rotatably connected, A tray filter 5 connected to the inspection door 4 is arranged in the tower body 1, and a spray device 6 is arranged above the tray filter 5. The spray device 6 is connected to a liquid supply pipe 7 extending to the outside of the tower body 1, and the liquid supply pipe 7 is connected to a liquid supply device 8. The liquid supply device 8 includes a water pump 81 and a liquid storage barrel 82 connected to the water pump 81. The liquid storage barrel 82 is filled with washing liquid. The water pump 81 can transport the washing liquid in the liquid storage barrel 82 to the spray device 6 through the liquid supply pipe 7, so that the spray device 6 can evenly spray the washing liquid on the tray filter 5. The exhaust port 3 pipe is connected to a fan 9, and the fan 9 is connected to the exhaust pipe 10.

[0024] In this embodiment, the tower body 1 is cylindrical, the inspection door 4 is a semicircular arc of half the cross-section of the tower body 1 when viewed from above, the outer diameter of the tray filter 5 is equal to the inner diameter of the tower body 1, and the outer wall of the tray filter 5 is in contact with the inner wall of the tower body 1.

[0025] In this embodiment, if Figure 3-Figure 5 As shown, a sealing strip mounting block 11 is welded on the inner wall of the tower body 1, a sealing strip mounting block 2 12 is welded on the inner wall of the inspection door 4, the sealing strip mounting block 2 12 fits the sealing strip mounting block 11, a vertical sealing groove 13 is provided on the side of the sealing strip mounting block 11 that fits with the sealing strip mounting block 2 12, a sealing strip 1 is embedded and installed in the sealing groove 13, a sealing groove 2 14 is provided on the upper and lower sides of the inspection door 4, a sealing strip 2 is embedded and installed in the sealing groove 2 14, a sealing strip 3 15 is welded on the side of the inspection door 4 that is away from the rotatably connected tower body 1, a sealing strip mounting block 4 16 is welded and connected to the outer wall of the tower body 1, the sealing strip mounting block 3 15 fits the sealing strip mounting block 4 16, a sealing groove 3 17 is provided on the side of the sealing strip mounting block 4 16 that fits with the sealing strip mounting block 3 15, a sealing strip 3 is embedded and installed in the sealing groove 3 17.

[0026] In this embodiment, bolt holes corresponding to the positions are provided on the sealing strip mounting block three 15 and the sealing strip mounting block four 16 , bolts 18 are installed in the bolt holes, and the bolt holes are provided to avoid the sealing groove three 17 .

[0027] In this embodiment, the outer wall of the tray filter 5 is provided with an escape opening 19, the shape of which matches the sealing strip mounting block 11, and the rear side of the sealing strip mounting block 11 is welded with a baffle 20 connected to the inner wall of the tower body 1.

[0028] In this embodiment, the tray filter 5 includes a support fence 51 and a filter 52 . The support fence 51 is disposed around the filter 52 and is welded and fixed to the filter 52 .

[0029] In this embodiment, a support platform 41 is provided on the inspection door 4, and the support platform 41 is welded and fixed to the lower part of the inner side surface of the inspection door 4. A reinforcing plate 53 is provided on the side of the tray filter 5 connected to the inspection door 4. The reinforcing plate 53 is located on the upper side surface of the support platform 41, and the reinforcing plate 53 is detachably connected to the support platform 41 by screws.

[0030] In this embodiment, the spray device 6 includes a support tube 61, an auxiliary pipe 62 and a plurality of atomizing nozzles. The support tube 61 is connected to the liquid supply pipe 7. Symmetrical threaded pipe interfaces are provided on both sides of the support tube 61. The auxiliary pipe 62 is connected to the support tube 61 through the threaded pipe interface. The atomizing nozzle adopts a commonly used atomizing nozzle with a threaded joint. A threaded interface is provided at the lower part of the auxiliary pipe 62. The plurality of atomizing nozzles are threadedly connected to the lower part of the auxiliary pipe 62.

[0031] In this embodiment, a handle 21 is welded to the outer side surface of the inspection door 4 .

[0032] When the utility model is in use, the bolts 18 installed on the sealing strip mounting block 3 15 are removed, the handle 21 on the outside of the inspection door 4 is pulled to rotate the inspection door 4 to open it, and the filler is placed in the tray filter 5. The filler can be a ball ring or a Taylor rosette. The support fence 51 provided on the tray filter 5 prevents the filler from rolling down. The inspection door 4 is closed and the bolts 18 are reinstalled to close the inspection door 4. The fan 9 and the liquid supply device 8 are started. At this time, the air inlet 2 sucks the exhaust gas from the bottom of the tower body 1, and at the same time, the spray device 6 atomizes the washing liquid through the spray device 6 and sprays the washing liquid onto the filler. At this time, the exhaust gas passes upward through the filler and the atomized washing liquid, and after washing, it is discharged through the exhaust port 3 provided on the upper part of the tower body 1. After working for a corresponding period of time, when the filler needs to be washed or replaced, the bolts 18 are removed again to open the inspection door 4 to replace the filler. At the same time, the inside of the tower body 1 can be cleaned and the spray device 6 can be inspected.

[0033] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A compound fertilizer granulation tail gas washing device, comprising a tower body, characterized in that: An air inlet is provided at the lower part of the tower body, an exhaust port is provided at the upper part of the tower body, an inspection door that can be rotatably opened or closed is provided at the side of the tower body, a tray filter connected to the inspection door is provided in the tower body, a spray device is provided above the tray filter, the spray device is connected to a liquid supply pipe extending to the outside of the tower body, the liquid supply pipe is connected to the liquid supply device, and the exhaust port pipe is connected to a fan.

2. The compound fertilizer granulation tail gas washing device according to claim 1 is characterized in that: The tower body is cylindrical, and the outer wall of the tray filter is in contact with the inner wall of the tower body.

3. The compound fertilizer granulation tail gas washing device according to claim 1 is characterized in that: The inner wall of the tower body is provided with a sealing strip mounting block 1, the inner wall of the inspection door is provided with a sealing strip mounting block 2, the sealing strip mounting block 2 is fitted with the sealing strip mounting block 1, a sealing groove 1 is provided on the side where the sealing strip mounting block 2 or the sealing strip mounting block 1 is fitted, a sealing strip 1 is provided in the sealing groove 1, the upper side and the lower side of the inspection door are both provided with sealing grooves 2, the sealing strip 2 is provided in the sealing groove 2, a sealing strip 3 is provided on the outer wall of the inspection door, a sealing strip mounting block 4 is provided on the outer wall of the tower body, the sealing strip mounting block 3 is fitted with the sealing strip mounting block 4, a sealing groove 3 is provided on the side where the sealing strip mounting block 3 or the sealing strip mounting block 4 is fitted, a sealing strip 3 is installed in the sealing groove 3.

4. The compound fertilizer granulation tail gas washing device according to claim 3 is characterized in that: The sealing strip mounting block three and the sealing strip mounting block four are provided with bolt holes at corresponding positions, and bolts are installed in the bolt holes.

5. The compound fertilizer granulation tail gas washing device according to claim 3 is characterized in that: The outer wall of the tray filter is provided with an escape opening, the shape of which matches the sealing strip mounting block 1, and the rear side surface of the sealing strip mounting block 1 is provided with a baffle connected to the inner wall of the tower body.

6. The compound fertilizer granulation tail gas washing device according to claim 1 is characterized in that: The tray filter comprises a support fence and a filter, wherein the support fence is arranged around the filter and is fixedly connected to the filter.

7. The compound fertilizer granulation tail gas washing device according to claim 1 is characterized in that: A support platform is arranged on the inner side surface of the inspection door, and a reinforcing plate is arranged on the side of the tray filter connected to the inspection door, and the reinforcing plate is detachably connected to the support platform.

8. The compound fertilizer granulation tail gas washing device according to claim 1 is characterized in that: The spray device comprises a support pipe, an auxiliary pipe and a plurality of atomizing nozzles. The support pipe is connected to the liquid supply pipe, the auxiliary pipe is symmetrically connected to the support pipe, and the plurality of atomizing nozzles are installed at the lower part of the auxiliary pipe.

9. The compound fertilizer granulation tail gas washing device according to claim 1, characterized in that: A handle is provided on the outer side of the inspection door.

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