A spray tower for treating chemical waste gas

Abstract

The invention relates to the technical field of spray towers, and discloses a spray tower for treating chemical waste gas, comprising a spray tower, a viewing window, a gas-liquid separation structure, a partition plate one and a partition plate two, wherein spray structures are arranged above the partition plate one and the partition plate two, the spray structure comprises a main pipeline, and a group of spray pipes are arranged on both sides of the main pipeline, and the two groups of spray pipes are arranged with a plurality of spray pipes, and the spray pipes are rotatably connected to the main pipeline, and a transmission frame is arranged below the spray pipes, and the transmission frame is threadedly connected to a rotating rod; in this scheme, the spray structure is designed to be a movable connection structure, and a plurality of connecting rods fixedly connected to each other are arranged below the main pipeline. When the connecting rod is displaced, the pin slides inside the groove of the adjusting plate, and the transmission spray pipe rotates on both sides of the main pipeline, so as to realize the adjustment of the spacing between the spray pipes, and when the spacing between the spray pipes is smaller than the diameter of the viewing window, the spray pipes can be taken out, thereby reducing the operation and maintenance cost compared with the existing structure that needs to be dismantled on a large scale.

Description

Technical Field

[0001] The invention relates to the field of spray towers, in particular to a spray tower for treating chemical waste gas. Background Art

[0002] The spray tower is a device used to pre-treat waste gas, which can indirectly improve the waste gas treatment efficiency. Since the waste gas is washed with water inside the spray tower, the dust in the waste gas and the chemicals that are easily soluble in water can be reduced, which can reduce the burden of the VOCs waste gas treatment equipment and improve the waste gas purification efficiency. Generally, when treating waste gas, there are steps such as collecting gas-pre-washing waste gas-transporting waste gas-purifying waste gas-discharging gas, and the spray tower plays the role of pre-washing and troubleshooting in the VOCs waste gas treatment process. For example, it plays an important role in projects such as biological deodorization and waste gas deodorization. In the treatment of waste gas containing paint, water-soluble waste gas, dust particles, etc., due to different chemical compositions, there is an impact on the treatment efficiency and energy consumption of the VOCs waste gas treatment equipment. The spray tower is used as a pre-treatment equipment to eliminate these unstable factors and improve the smooth operation and purification efficiency of the VOCs waste gas treatment equipment. In some special cases, when the exhaust gas collection inlet temperature is high, the inorganic acidic gas generated during the catalytic combustion equipment treatment needs to be cooled down before entering the subsequent process, and the spray tower can be used as a cooling facility and can be widely used in different exhaust gas treatment projects. When dealing with odors and peculiar smells, the irritating gases will produce toxic components, which have a great impact on human health; but some are soluble in water, such as ammonia, sulfide and other gases. These odors are washed by the spray tower, which will increase the treatment efficiency of microorganisms in the biological deodorization equipment and reduce the load; at the same time, the moist internal environment of the spray tower discharges the odor into the biological purification equipment, which can improve the living environment of microorganisms and greatly improve the deodorization efficiency of microorganisms. Therefore, the spray tower is also suitable for biological deodorization and is widely used in waste gas treatment projects such as biological deodorization, biological trickling filtration, biological filter tanks and UV photolysis.

[0003] The spray tower structure is a reverse packing absorption tower; due to the light volume of gas, the gas enters the spray tower from the bottom of the tower body, rises evenly to the packing area, and is treated by water pre-washing to reduce the water-soluble and dust in the waste gas. The gas is mixed with mist water to form a filter layer on the surface of tiny droplets to simply treat VOCs waste gas. The external structure of the spray tower is made of PP and stainless steel. The bottom is also equipped with a water tank for water supply, a packing layer in the middle, and a demisting layer on the upper layer to separate the droplets carried by the waste gas. The pre-treated gas enters the waste gas treatment equipment for waste gas purification.

[0004] The spray structure in the existing spray tower usually adopts a fixed pipe frame, on which a number of nozzles connected to the inside are fixedly connected. Due to the complex composition of chemical waste gas, the spray tower is prone to nozzle blockage during long-term operation. The blocked nozzle will lead to the unevenness of spraying cannot be guaranteed. Therefore, after a period of use, it is necessary to maintain it. During maintenance, due to its fixed structure, the spray tower needs to be disassembled as a whole. The operation is very complicated and the maintenance cycle is long, which affects production. Therefore, the present invention proposes a spray tower for chemical waste gas treatment and a water circulation mechanism thereof to solve the above problems. Summary of the invention

[0005] In order to solve the problem that the fixed spray pipe structure inside the existing spray tower is not conducive to later maintenance, the present invention provides a spray tower for chemical waste gas treatment and a water circulation mechanism thereof.

[0006] The present invention provides a spray tower for treating chemical waste gas and a water circulation mechanism thereof, which adopts the following technical solutions:

[0007] A spray tower for treating chemical waste gas comprises a spray tower, wherein a plurality of viewing windows are evenly distributed on one side of the tower body of the spray tower, a gas delivery port is arranged at the bottom end of the other side, an exhaust port is arranged at the top of the spray tower, and a gas-liquid separation structure, a partition plate 1 and a partition plate 2 are fixedly connected in sequence from top to bottom inside the spray tower, a spray structure is arranged above the partition plate 1 and the partition plate 2, and a rotating rod is rotatably connected below the spray structure, a positioning tube is welded on the inner wall of the spray tower, and the rotating rod and the positioning tube cooperate to fix the position of the spray structure in the spray tower;

[0008] The spray structure includes a main pipeline, and a group of spray pipes are arranged on both sides of the main pipeline, and the two groups of spray pipes are arranged with a plurality of spray pipes, and the spray pipes are rotatably connected to the main pipeline, and a transmission frame is arranged below the spray pipe, and the transmission frame is threadedly connected to the rotating rod;

[0009] When the spray structure is fixed to the inner side of the spray tower by a rotating rod, the rotating rod drives the spray pipe to be arranged perpendicular to the main pipeline through the transmission frame. When the rotating rod and the positioning pipe are separated, the angle between the spray pipe and the main pipeline is an acute angle, and the maximum spacing between the ends of the spray pipe is less than the window diameter.

[0010] Preferably, a fixing frame is vertically welded on the outer wall of the main pipeline corresponding to the position of each spray pipe, an articulated frame is welded at one end of the spray pipe close to the main pipeline, and the articulated frame and the fixing frame are rotatably connected, and the spray pipe is located at one end of the articulated frame and is connected to the inside of the main pipeline through a rubber tube.

[0011] Preferably, sliding sleeves are welded below both ends of the main pipeline, and the rotating rod is slidably connected to the inner side of the sliding sleeve.

[0012] Preferably, two fixing rings are welded on the outer wall of the rotating rod corresponding to the two sliding sleeves, a threaded section is provided at the front end of the rotating rod, the rotating rod is threadedly connected to the positioning tube through the threaded section, the positioning tube and the fixing ring cooperate to clamp and fix one of the two sliding sleeves, a positioning rod is provided at a position welder near the window on the inner wall of the spray tower, the positioning rod and the fixing ring cooperate to clamp and fix the other of the two sliding sleeves, and a nut is welded on the end of the rotating rod away from the threaded section.

[0013] Preferably, an adjusting plate is welded on the side of the articulated frame of the spray pipe away from the fixed frame, a connecting rod is slidably embedded between the main pipe and the rotating rod, two colinear sprays in the two groups of spray pipes correspond to one connecting rod, and the connecting rod is movably connected between the pin shaft and the adjusting plate, and fixed rods are welded on both sides of several of the connecting rods.

[0014] Preferably, a collar is welded at a middle position of a plurality of the connecting rods, and the collar is rotatably connected to the rotating rod and performs axial displacement along with the rotating rod.

[0015] A spray tower water circulation mechanism for treating chemical waste gas comprises a spray tower and a spray structure, a water tank is arranged on one side of the spray tower, and the bottom of the water tank is connected to the inside of the spray tower through a circulation pipe, a water pump is arranged on the top of the water tank, and the output end of the water pump is connected to the inside of the spray tower through a pipeline, the pipeline comprises a water delivery pipe, a diverter pipe 1 and a diverter pipe 2, one end of the water delivery pipe is connected to the output end of the water pump, and the other end of the water delivery pipe is connected to the diverter pipe 1 and the diverter pipe 2, and the diverter pipe 1 and the diverter pipe 2 are both connected to the spray structure through a connecting pipe.

[0016] In summary, the present invention includes at least one of the following beneficial technical effects:

[0017] 1. By designing the spray structure into a movable connection structure and setting a number of mutually fixed connecting rods under the main pipeline, when the connecting rod moves, the pin slides inside the adjusting plate slot, and the transmission spray pipe rotates on both sides of the main pipeline to adjust the spray pipe spacing. When it is smaller than the window diameter, it can be taken out. Compared with the existing structure that needs to be dismantled on a large scale, the operation and maintenance cost is reduced.

[0018] 2. By setting a rotating rod under the main pipeline, the rotating rod uses a fixing ring, a positioning tube and a positioning rod to fix the position of the sliding sleeve, thereby fixing the position of the spray structure. The connecting rod is rotatably connected between the ring and the rotating rod, so that the spray pipe can be folded while being disassembled, thereby improving the practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the isometric structure on the left side of an embodiment of the invention;

[0020] Figure 2 is a right isometric structural schematic diagram of an embodiment of the invention;

[0021] Figure 3 It is a schematic diagram of the internal structure of the spray tower of an embodiment of the invention;

[0022] Figure 4 It is a schematic diagram of the internal structure of the spray tower of an embodiment of the invention;

[0023] Figure 5 It is a schematic diagram of the structure of the spray rack of an embodiment of the invention;

[0024] Figure 6 It is a schematic diagram of the explosion structure of the spray rack of the embodiment of the invention;

[0025] Figure 7 is a schematic diagram of the isometric structure of a spray rack in a top view according to an embodiment of the invention;

[0026] Figure 8 is an enlarged structural schematic diagram of location A of an embodiment of the invention;

[0027] Fig. 9 is an enlarged structural schematic diagram of location B of an embodiment of the invention;

[0028] Fig.10 It is a schematic diagram of the enlarged structure of point C of an embodiment of the invention.

[0029] Explanation of the accompanying drawings: 1. spray tower; 2. window; 3. exhaust port; 4. water tank; 5. water pump; 6. water pipe; 7. diverter pipe 1; 8. diverter pipe 2; 9. gas port; 10. gas-liquid separation structure; 11. partition 1; 12. partition 2; 13. positioning pipe; 14. spray pipe; 15. main pipeline; 16. connecting pipe; 17. rotating rod; 18. nut; 19. fixing ring; 20. circulation pipe; 21. threaded section; 22. sliding sleeve; 23. connecting rod; 24. fixing rod; 25. hinged frame; 26. adjustment plate; 27. fixing frame; 28. rubber tube; 29. ​​collar; 30. positioning rod. DETAILED DESCRIPTION

[0030] The following is combined with Figure 1 —10 The present invention is described in further detail.

[0031] Embodiment 1:

[0032] Reference Figure 1-10A spray tower 1 for treating chemical waste gas comprises a spray tower 1, a plurality of viewing windows 2 are evenly distributed on one side of the tower body of the spray tower 1, a gas delivery port 9 is arranged at the bottom of the other side, an exhaust port 3 is arranged at the top of the spray tower 1, and a gas-liquid separation structure 10, a partition 11 and a partition 2 12 are fixedly connected in sequence from top to bottom inside the spray tower 1, a spray structure is arranged above the partition 11 and the partition 2 12, and a rotating rod 17 is rotatably connected below the spray structure, a positioning tube 13 is welded on the inner wall of the spray tower 1, and the rotating rod 17 and the positioning tube 13 cooperate to fix the position of the spray structure in the spray tower 1.

[0033] The spray structure includes a main pipeline 15, and a group of spray pipes 14 are arranged on both sides of the main pipeline 15. Both groups of spray pipes 14 are provided with a plurality of spray pipes, and the spray pipes 14 are rotatably connected to the main pipeline 15. A transmission frame is arranged below the spray pipes 14, and the transmission frame and the rotating rod 17 are threadedly connected.

[0034] When the spray structure is fixed to the inner side of the spray tower 1 by the rotating rod 17, the rotating rod 17 drives the spray pipe 14 to be arranged perpendicular to the main pipeline 15 through the transmission frame. When the rotating rod 17 and the positioning pipe 13 are separated, the angle between the spray pipe 14 and the main pipeline 15 is an acute angle, and the maximum spacing between the ends of the spray pipe 14 is less than the diameter of the window 2.

[0035] A fixing frame 27 is vertically welded on the outer wall of the main pipeline 15 corresponding to each spray pipe 14 position. A hinged frame 25 is welded on one end of the spray pipe 14 close to the main pipeline 15, and the hinged frame 25 and the fixing frame 27 are rotatably connected. The spray pipe 14 is located at one end of the hinged frame 25 and is connected to the inside of the main pipeline 15 through a rubber tube 28. The fixing frame 27 is a two-stage structure with a gap between the two sections. The rubber tube 28 is located between the two fixing frames 27. The length of the rubber tube 28 is greater than the spray pipe 14 when it is vertically connected to the main pipeline 15. 5, so as to ensure the connection between the spray pipe 14 and the main pipeline 15 when the spray pipe 14 rotates, the hinge frame 25 is a two-stage structure, and the two sections of the hinge frame 25 are located on the outside of the two fixed frames 27, and the two are matched with each other. The hinge frame 25 and the fixed frame 27 are rotatably connected through a pin shaft. Slide sleeves 22 are welded below both ends of the main pipeline 15, and the rotating rod 17 is slidably connected to the inner side of the slide sleeve 22. Two fixing rings 19 are welded on the outer wall of the rotating rod 17 corresponding to the two slide sleeves 22. A threaded section 21 is provided at the front end of the moving rod 17, and the rotating rod 17 is threadedly connected to the positioning tube 13 through the threaded section 21. The positioning tube 13 and the fixing ring 19 cooperate to clamp and fix one of the two sliding sleeves 22. A positioning rod 30 is provided at the position of the inner wall of the spray tower 1 near the window 2. The positioning rod 30 and the fixing ring 19 cooperate to clamp and fix the other of the two sliding sleeves 22. A nut 18 is welded at one end of the rotating rod 17 away from the threaded section 21. The nut 18 is used to operate the rotating rod 17. The rotating rod 17 is moved toward the positioning tube 1 3, since the reserved length of the front end of the rotating rod 17 is greater than the distance between the front fixing ring 19 and the front end of the front sliding sleeve 22, the fixing ring 19 can continue to move forward. When the front end of the sliding sleeve 22 is fitted with the positioning tube 13, the positioning tube 13 and the fixing ring 19 squeeze the sliding sleeve 22 to fix the position of the sliding sleeve 22. The two sides of the sliding sleeve 22 at the rear are also fixed in position by mutual squeezing between the positioning rod 30 and the fixing ring 19. The combination of the two fixes the position of the spray structure to ensure its levelness.

[0036] An adjusting piece 26 is welded on the side of the hinged frame 25 of the spray pipe 14 away from the fixed frame 27. A connecting rod 23 is slidably embedded between the main pipeline 15 and the rotating rod 17. Two sprays in the same line of the two groups of spray pipes 14 correspond to one connecting rod 23, and the connecting rod 23 is movably connected through a pin shaft and the adjusting piece 26. Fixed rods 24 are welded on both sides of several connecting rods 23. The connecting rod 23 is fixed in position by the fixed rod 24. A notch is provided on the adjusting piece 26. When the connecting rod 23 is displaced in the horizontal direction, its pin shaft slides in the notch of the adjusting piece 26, thereby toggling the adjusting piece 26, so as to realize the rotation of the spray pipe 14 around the pin shaft of the hinged frame 25, thereby realizing the adjustment of the angle between the spray pipe 14 and the main pipeline 15. Several connecting rods 2 A collar 29 is welded at an intermediate position in 3, and the collar 29 is rotatably connected to the rotating rod 17 and axially displaced with the rotating rod 17. The collar 29 and the rotating rod 17 rotate radially and slide axially. When the rotating rod 17 is operated by the nut 18, the axial slide occurs. At this time, the collar 29 synchronously displaces forward with the rotation, and the connecting rod 23 and the collar 29 synchronously displace. The pins at both ends of the connecting rod 23 slide in the notches of the adjusting plate 26, thereby realizing the angle adjustment of the spray pipe 14. The spacing between the ends of the spray pipe 14 after rotation is reduced, and finally reduced to less than the diameter of the window 2. At this time, the spray pipe 14 can be easily taken out of the window 2 of the spray tower 1, and a new spray pipe 14 can be replaced, reducing the impact of the maintenance of the spray pipe 14 on the device.

[0037] Embodiment 2:

[0038] Reference Figure 1-4 A water circulation mechanism for a spray tower 1 for treating chemical waste gas, comprising a spray tower 1 and a spray structure, a water tank 4 is arranged on one side of the spray tower 1, and the bottom of the water tank 4 is connected to the inside of the spray tower 1 through a circulation pipe 20, a water pump 5 is arranged on the top of the water tank 4, and the output end of the water pump 5 is connected to the inside of the spray tower 1 through a pipeline, the pipeline comprises a water delivery pipe 6, a diversion pipe 1 7 and a diversion pipe 2 8, one end of the water delivery pipe 6 is connected to the output end of the water pump 5, and the other end of the water delivery pipe 6 is connected to the diversion pipe 1 7, the diversion pipe 2 Pipe 2 8 is connected, and both diverter pipe 1 7 and diverter pipe 2 8 are connected to the spray structure through a connecting pipe 16. Valves are provided on both diverter pipe 1 7 and diverter pipe 2 8. The connecting pipe 16 is made of rubber material, and both ends of the connecting pipe 16 are provided with threaded connection sections. The connecting pipe 16 is detachably connected to the diverter pipe and the main pipeline 15 of the spray structure through the threaded connection sections. During maintenance, the connection between the connecting pipe 16 and the spray structure is first removed, and then the spray structure can be removed.

[0039] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A spray tower for treating chemical waste gas, comprising a spray tower (1), wherein a plurality of viewing windows (2) are evenly distributed on one side of the tower body of the spray tower (1), a gas delivery port (9) is arranged at the bottom end of the other side, an exhaust port (3) is arranged at the top of the spray tower (1), and a gas-liquid separation structure (10), a partition plate 1 (11) and a partition plate 2 (12) are fixedly connected in sequence from top to bottom inside the spray tower (1), characterized in that: A spray structure is disposed above the partition plate 1 (11) and the partition plate 2 (12), and a rotating rod (17) is rotatably connected to the bottom of the spray structure. A positioning tube (13) is welded to the inner wall of the spray tower (1), and the rotating rod (17) and the positioning tube (13) cooperate to fix the position of the spray structure in the spray tower (1); The spray structure comprises a main pipeline (15), and a group of spray pipes (14) are arranged on both sides of the main pipeline (15), and the two groups of spray pipes (14) are provided with a plurality of spray pipes, and the spray pipes (14) are rotatably connected to the main pipeline (15), and a transmission frame is arranged below the spray pipes (14), and the transmission frame and the rotating rod (17) are threadedly connected; When the spray structure is fixed to the inner side of the spray tower (1) via the rotating rod (17), the rotating rod (17) drives the spray pipe (14) to be arranged perpendicular to the main pipe (15) via the transmission frame; when the rotating rod (17) and the positioning pipe (13) are separated, the angle between the spray pipe (14) and the main pipe (15) is an acute angle, and the maximum spacing between the ends of the spray pipe (14) is smaller than the diameter of the viewing window (2); A fixing frame (27) is vertically welded on the outer wall of the main pipeline (15) at the position corresponding to each spray pipe (14); an articulated frame (25) is welded at one end of the spray pipe (14) close to the main pipeline (15); the articulated frame (25) and the fixing frame (27) are rotatably connected; and one end of the spray pipe (14) located at the articulated frame (25) is connected to the inside of the main pipeline (15) via a rubber tube (28); An adjusting plate (26) is welded to one side of the hinge frame (25) of the spray pipe (14) away from the fixed frame (27); a connecting rod (23) is slidably embedded between the main pipe (15) and the rotating rod (17); two colinear sprays in the two groups of spray pipes (14) correspond to one connecting rod (23); and the connecting rod (23) is movably connected to the adjusting plate (26) via a pin shaft, and the pin shaft can slide in the adjusting plate (26); and fixing rods (24) are welded to both sides of a plurality of the connecting rods (23); One of the plurality of connecting rods (23) is welded with a collar (29) at a middle position, the collar (29) is rotatably connected to the rotating rod (17) and moves axially along with the rotating rod (17), and the connecting rod (23) welded with the collar (29) and the fixed rod (24) constitute the transmission frame; A water tank (4) is provided on one side of the spray tower (1), and the bottom of the water tank (4) is connected to the interior of the spray tower (1) through a circulation pipe (20); a water pump (5) is provided on the top of the water tank (4), and the output end of the water pump (5) is connected to the interior of the spray tower (1) through a pipeline, the pipeline comprising a water delivery pipe (6), a first diversion pipe (7) and a second diversion pipe (8); one end of the water delivery pipe (6) is connected to the output end of the water pump (5), and the other end of the water delivery pipe (6) is connected to the first diversion pipe (7) and the second diversion pipe (8); the first diversion pipe (7) and the second diversion pipe (8) are both connected to the spray structure through a connecting pipe (16); The hinge frame (25) and the fixed frame (27) are rotatably connected via a pin shaft. Sliding sleeves (22) are welded below both ends of the main pipe (15). The rotating rod (17) is slidably connected to the inner side of the sliding sleeve (22). Two fixing rings (19) are welded on the outer wall of the rotating rod (17) corresponding to the two sliding sleeves (22). A threaded section (21) is provided at the front end of the rotating rod (17). The rotating rod (17) is threadedly connected to the positioning tube (13) via the threaded section (21). The positioning tube (13) and the fixing ring (19) cooperate to clamp and fix one of the two sliding sleeves (22); a positioning rod (30) is provided at a position welder on the inner wall of the spray tower (1) near the viewing window (2); the positioning rod (30) and the fixing ring (19) cooperate to clamp and fix the other of the two sliding sleeves (22); a nut (18) is welded to one end of the rotating rod (17) away from the threaded section (21); the nut (18) is used to operate the rotating rod (17).

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