Spray tower for acid mist treatment

Abstract

The invention relates to a spray tower for acid mist treatment, and relates to the field of waste gas treatment.The spray tower comprises a tower body and a plurality of layers of spray mechanisms installed in the tower body, each spray mechanism comprises a main water inlet pipe and a plurality of water inlet branch pipes communicated with the main water inlet pipe, and each water inlet branch pipe is fixedly communicated with a plurality of branch pipes; each branch pipe communicates with a water spraying pipe, each water spraying pipe comprises a sleeve communicating with the corresponding branch pipe, a first mounting plate and a second mounting plate are rotationally connected into the sleeve, a rotating shaft is fixedly connected between the first mounting plate and the second mounting plate, and a plurality of driving blades are fixedly connected to the side wall of the rotating shaft. The communicating position of the branch pipe and the sleeve is aligned with one of the driving blades, and a plurality of water spraying holes are formed in the first mounting plate. The device has the effect of rotationally spraying the absorption liquid and saving electric power resources.

Description

Technical Field

[0001] The present application relates to the field of waste gas treatment, and in particular to a spray tower for acid mist treatment. Background Art

[0002] Acid mist spray tower is a kind of waste gas treatment equipment specially used for treating waste gas containing acid gas or acid mist. It is widely used in industries that produce acid waste gas, such as chemical, pharmaceutical, electronic, laboratory, etc. Its working principle is based on acid-base neutralization reaction, and it neutralizes acid gas by spraying alkali solution, thereby purifying waste gas.

[0003] In order to spray the absorption liquid more evenly inside the tower body, thereby improving the treatment effect of acidic gas, a rotating nozzle for spraying the absorption liquid is usually provided inside the tower body, and the rotating nozzle rotates during the spraying of the absorption liquid. However, the rotation mode of the rotating nozzle is usually to drive multiple rotating nozzles to rotate together by setting a driving power supply, which wastes power resources. Summary of the invention

[0004] In order to save electricity resources by rotary spraying absorption liquid, the present application provides a spray tower for acid mist treatment.

[0005] The present application provides a spray tower for acid mist treatment using the following technical solution: A spray tower for acid mist treatment comprises a tower body and a multi-layer spray mechanism installed inside the tower body, each of the spray mechanisms comprises a main water inlet pipe, a plurality of water inlet branches connected to the main water inlet pipe, each water inlet branch pipe is fixed and connected to a plurality of branch pipes, each branch pipe is connected to a water spray pipe, the water spray pipe comprises a sleeve connected to the branch pipe, a first mounting plate and a second mounting plate are rotatably connected inside the sleeve, a rotating shaft is fixedly connected between the first mounting plate and the second mounting plate, a plurality of driving blades are fixedly connected to the side wall of the rotating shaft, the connecting point between the branch pipe and the sleeve is aligned with one of the driving blades, and a plurality of water spray holes are opened on the first mounting plate.

[0006] By adopting the above technical solution, the spray tower can achieve a uniformly distributed water spray effect and effectively improve the acid mist purification efficiency. The design of the multi-layer spray mechanism in the tower body allows the acid mist to be sprayed multiple times at different heights, increasing the chance of contact between the acid mist and the cleaning liquid, thereby improving the purification effect. The design of multiple branch pipes and spray pipes on each water inlet branch ensures the uniform distribution of water flow, avoids local overload or shortage, and further improves the uniformity of spraying. The rotating shaft and driving blade structure between the first plate and the second plate enable the spray pipe to rotate automatically under the impact of water flow, achieving all-round, dead-angle spray coverage, enhancing the cleaning effect, and no need for electricity to drive the spray pipe to rotate, which saves more electricity resources. The multiple spray holes opened on the first plate help to form small and dense water droplets, increase the probability of collision with acid mist particles, and further improve the removal efficiency.

[0007] Preferably, the side wall of each branch pipe is connected to two water spray pipes, wherein one of the water spray pipes has a first installation plate and a second installation plate arranged up and down, and the other of the water spray pipes has a first installation plate and a second installation plate arranged down and up.

[0008] By adopting the above technical solution, the design of each branch pipe being connected with two water spray pipes makes the water flow distribution more extensive, increases the spraying area, and thus enhances the washing efficiency of the acid mist. In one of the water spray pipes, the installation plate and the installation plate are arranged up and down, while in the other water spray pipe, the installation plate and the installation plate are arranged down and up. This structural design can form different spray angles and directions, further improve the coverage and uniformity of the water spray, and effectively avoid the problem of insufficient water spray in local areas. In addition, the water spray pipe with the installation plate located above sprays the absorption liquid upward, which reduces the falling speed of the absorption liquid, increases the contact time between the absorption liquid and the acid mist, and improves the purification effect.

[0009] Preferably, the middle portion of the first mounting plate gradually bulges away from the second mounting plate.

[0010] By adopting the above technical solution, the middle part of the first plate gradually rises away from the second plate, making the water flow in the water spray pipe more concentrated and evenly distributed, improving the coverage and efficiency of the water spray, thereby enhancing the effect of acid mist treatment.

[0011] Preferably, a cleaning assembly is installed in each of the water spray pipes, each of the water spray pipes is vertically slidably connected to the corresponding branch pipe, each of the branch pipes is provided with two through openings on the side wall, each of the water spray pipes is provided with a long hole connected to the corresponding through openings on the side wall, the length of the long hole is greater than the height of the through opening, the cleaning assembly includes a brush rod hinged to the outer wall of the branch pipe, the brush rod is plugged into the long hole, a side of the brush rod close to the branch pipe is fixedly connected with a plurality of bristles, a torsion spring is installed at the hinge of the brush rod, the brush rod extends in the direction of installing a plate, and a lifting mechanism for driving each water spray pipe to rise and fall is installed on the tower body.

[0012] By adopting the above technical solution, under the action of the lifting mechanism, the lifting mechanism drives the water spray pipe to move along the branch pipe, and the installation plate in the water spray pipe gradually moves in the direction close to the brush rod until one end of the brush rod touches the inner surface wall of the installation plate. At this time, the water spray pipe continues to move, and the brush rod gradually rotates under the force of the inner surface wall of the installation plate, and the bristles are close to the inner surface wall of the installation plate. At this time, the torsion spring is in a state of storing force. When the driving blade drives the rotating shaft and the installation plate to rotate under the impact of the water flow, the installation plate rotates relative to the brush rod, thereby achieving effective cleaning of the inner surface wall of the installation plate by the bristles, reducing the occurrence of clogging of the water spray hole. When the lifting mechanism drives the installation plate in the water spray pipe to gradually move away from the brush rod, the brush rod rotates and resets under the force of the torsion spring, which does not affect the spraying effect of the water spray hole.

[0013] Preferably, an inclined surface is provided at one end of the brush rod close to the mounting plate, and the inclined surface gradually inclines from a direction away from the branch pipe to a direction close to the mounting plate.

[0014] By adopting the above technical solution, when the mounting plate in the water spray pipe gradually moves toward the brush rod, the inclined surface guides the brush rod to gradually approach and finally cling to the mounting plate, ensuring that the bristles can fully remove the residues on the mounting plate and reduce the occurrence of clogging of the water spray hole.

[0015] Preferably, the lifting mechanism includes two hydraulic cylinders fixedly connected to the outside of the tower body, and each of the water spray pipes on the same side of the branch pipes in each layer of the spray mechanism is fixedly connected to the same support frame, and each of the support frames includes a support rod. The side wall of the tower body is provided with a plurality of vertically arranged guide holes, and a connecting rod is fixedly connected to the piston rod of each hydraulic cylinder, and each support rod passes through the corresponding guide hole and is fixedly connected to the adjacent connecting rod.

[0016] By adopting the above technical solution, the hydraulic cylinder can drive the support frame and the water spray pipe to move up and down, so as to realize automatic cleaning of the water spray pipe. When the water spray pipe is raised and lowered, thereby driving the mounting plate to move toward the brush rod, the bristles on the brush rod will cling to the inner surface wall of the mounting plate, remove the blockage, and ensure that the water spray hole is unobstructed.

[0017] Preferably, a sealing plate is fixedly connected to each of the support rods, one sealing plate corresponds to one guide hole, and the sealing plate is slidably connected to the tower body and is used to block the guide hole.

[0018] By adopting the above technical solution, the design of the guide hole and the sealing plate ensures the sealing and stability of the system, and reduces the occurrence of external impurities entering the tower body and affecting the treatment effect. The whole process has a high degree of automation, is easy to maintain, and improves the efficiency of acid mist treatment.

[0019] Preferably, each of the driving blades is an arc-shaped blade.

[0020] By adopting the above technical solution, each driving blade is designed as an arc blade, which can effectively increase the force of the water flow on the driving blade, thereby improving the rotation efficiency of the water spray pipe, making the water spray more uniform, and further improving the effect of acid mist treatment.

[0021] In summary, the present application includes at least one of the following beneficial technical effects: 1. When water flows into the water spray pipe, it can drive the driving blade to rotate, thereby driving the rotating shaft between the first mounting plate and the second mounting plate to rotate, so that the water spray pipe can automatically rotate and spray water without an additional power source. The rotary spraying absorption liquid saves power resources and improves the uniformity of the spray liquid distribution and the processing efficiency. 2. The spray mechanism sprays the absorption liquid upward and downward, which improves the purification efficiency of acid mist; 3. The bristles can fully remove the residue on the installation board and reduce the occurrence of clogging of the water spray holes. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the spray tower embodied in the embodiment of the present application.

[0023] Figure 2 It is a structural schematic diagram of the spray mechanism embodied in an embodiment of the present application.

[0024] Figure 3 It is a schematic diagram of the structure of the support frame according to an embodiment of the present application.

[0025] Figure 4 It is a schematic diagram of the internal structure of the water spray pipe according to an embodiment of the present application.

[0026] Figure 5 It is a structural schematic diagram of an embodiment of the present application embodying the installation of a board.

[0027] Figure 6 It is a manifestation Figure 5 Enlarged view of point A in the middle.

[0028] Explanation of the reference numerals: 1. tower body; 11. air inlet pipe; 12. air outlet pipe; 13. guide hole; 2. swirl plate; 3. spray mechanism; 31. main water inlet pipe; 32. water inlet branch pipe; 33. branch pipe; 331. through port; 34. water spray pipe; 341. sleeve; 342. installation of one plate; 343. installation of two plates; 344. rotating shaft; 345. driving blade; 346. long hole; 4. cleaning assembly; 41. mounting block; 42. brush rod; 421. groove; 43. connecting shaft; 44. torsion spring; 5. lifting mechanism; 51. hydraulic cylinder; 52. connecting rod; 53. support frame; 54. support rod; 55. sealing plate. DETAILED DESCRIPTION

[0029] The following is combined with Figure 1-Figure 6 This application is described in further detail.

[0030] The present application embodiment discloses a spray tower for acid mist treatment. Figure 1 and Figure 2 The spray tower comprises a tower body 1, an air inlet pipe 11 is installed at the lower end of the tower body 1, and an air outlet pipe 12 is installed at the upper end. A multi-layer swirl plate 2 is installed inside the tower body 1, and a multi-layer spray mechanism 3 is arranged inside the tower body 1, and each spray mechanism 3 is arranged under a corresponding swirl plate 2.

[0031] Reference Figure 2 and Figure 3 Each spray mechanism 3 includes a main water inlet pipe 31, one end of which penetrates the side wall of the tower body 1 and is used for the pumping device, and the other end is fixed inside the tower body 1 and fixedly connected with a plurality of water inlet branch pipes 32, and each water inlet branch pipe 32 is fixed and connected with a plurality of branch pipes 33. Each branch pipe 33 is vertically arranged downward, and the lower end of each branch pipe 33 is in a closed state. Two water spray pipes 34 are installed on each branch pipe 33.

[0032] Reference Figure 3 and Figure 4 The water spray pipe 34 includes a sleeve 341 connected to the branch pipe 33, and a first mounting plate 342 and a second mounting plate 343 are rotatably connected inside the sleeve 341. A rotating shaft 344 is fixedly connected between the first mounting plate 342 and the second mounting plate 343. A plurality of driving blades 345 are fixedly connected to the side wall of the rotating shaft 344, and the plurality of driving blades 345 are evenly distributed around the rotating shaft 344. The connecting point between the branch pipe 33 and the sleeve 341 is aligned with one of the driving blades 345, and a plurality of water spray holes are opened on the first mounting plate 342.

[0033] When the spray mechanism 3 sprays the absorption liquid, the absorption liquid enters each water spray pipe 34 along the main water inlet pipe 31, the water inlet branch pipe 32, and the branch pipe 33. In the process of the liquid entering the water spray pipe 34, the liquid impacts the driving blade 345 to drive the rotating shaft 344 to rotate. The rotation of the rotating shaft 344 drives the first installation plate 342 and the second installation plate 343 to rotate, so that the first installation plate 342 can achieve the effect of rotating water spraying. Compared with the traditional electric drive method, this method is more energy-saving and efficient, reduces maintenance costs, and extends the service life of the equipment.

[0034] The driving blade 345 is designed as an arc-shaped blade to increase the contact area with the water flow, so as to facilitate the driving blade 345 to rotate under the impact of the water flow and improve the spraying efficiency.

[0035] The two water spray pipes 34 connected to each branch pipe 33 spray water in opposite directions, that is, the first plate 342 and the second plate 343 in one of the water spray pipes 34 are arranged vertically, and the water spray direction is upward, while the first plate 342 and the second plate 343 in the other water spray pipe 34 are arranged vertically, and the water spray direction is downward.

[0036] When one water spray pipe 34 sprays liquid upward, the other water spray pipe 34 sprays liquid downward, and the two complement each other to cover more areas. This can not only increase the spraying area, but also increase the spraying force, so that the absorption liquid can contact with the acid gas more effectively and improve the treatment effect. In addition, spraying the liquid upward can slow down the descending speed of the liquid and increase the contact time between the liquid and the acid mist.

[0037] The middle of the first mounting plate 342 gradually rises in a direction away from the second mounting plate 343 to form a cone. This design can guide the water flow to spread outward from the middle part to form a more uniform spraying pattern. The raised part can also be designed into a hemispherical shape or other suitable geometric shapes to increase the spraying area of ​​the first mounting plate 342.

[0038] Reference Figure 4 and Figure 5 A cleaning assembly 4 is installed in each water spray pipe 34, and the cleaning assembly 4 is used to clean the inner surface wall of the installation plate 342 to reduce the occurrence of blockage of the water spray hole.

[0039] Each water spray pipe 34 is vertically slidably connected to the corresponding branch pipe 33. The side wall of each branch pipe 33 is provided with two through-holes 331. The side wall of each water spray pipe 34 is provided with a long hole 346 connected to the corresponding through-hole 331. The long hole 346 is arranged in a vertical direction, and the length of the long hole 346 is greater than the height of the through-hole 331. The tower body 1 is equipped with a lifting mechanism 5 (see FIG. 1 ) for driving each water spray pipe 34 to rise and fall. Figure 1 ).

[0040] Reference Figure 5 and Figure 6 The cleaning assembly 4 includes a mounting block 41 fixedly connected to the outer wall of the branch pipe 33, a brush rod 42 is provided on one side of the mounting block 41, a groove 421 is provided at one end of the brush rod 42, and a connecting shaft 43 is fixedly connected in the groove 421. One end of the mounting block 41 is inserted into the groove 421 and is rotatably connected to the connecting shaft 43. A torsion spring 44 is sleeved on the outer side of the connecting shaft 43, one end of the torsion spring 44 is fixedly connected to the mounting block 41, and the other end is fixedly connected to the brush rod 42. The brush rod 42 is plugged into the long hole 346, and a side of the brush rod 42 close to the branch pipe 33 is fixedly connected with a plurality of bristles. When the torsion spring 44 is in a normal state, the bristles contact the outer wall of the branch pipe 33, and the end of the brush rod 42 away from the mounting block 41 extends toward the direction of the mounting plate 342.

[0041] By adjusting the lifting mechanism 5 (see Figure 1 ) drives the water spray pipe 34 up and down. When the water spray pipe 34 moves and drives the mounting plate 342 to move toward the brush rod 42, the mounting plate 342 pushes the brush rod 42 to rotate away from the branch pipe 33 until the bristles on the brush rod 42 contact the inner surface wall of the mounting plate 342, and the torsion spring 44 is in a state of storing force. At this time, when the water flow impacts the driving blade 345 and drives the mounting plate 342 to rotate, the mounting plate 342 rotates relative to the bristles, and the bristles can clean the water spray holes in the mounting plate 342.

[0042] When there is no need to clean the water spray hole, adjust the lifting mechanism 5 (see Figure 1 ) drives the water spray pipe 34 to move, and the water spray pipe 34 drives the mounting plate 342 to move away from the brush rod 42, so that the brush rod 42 is rotated and reset in the direction close to the branch pipe 33 by the force of the torsion spring 44. At this time, the brush rod 42 is out of contact with the mounting plate 342, which facilitates the mounting plate 342 to spray liquid more efficiently.

[0043] Each brush rod 42 is provided with an inclined surface at one end close to the corresponding mounting plate 342, and the inclined surface gradually inclines from the direction away from the branch pipe 33 to the direction close to the mounting plate 342. The mounting plate 342 moves in the direction close to the brush rod 42 and contacts the inclined surface, so that the mounting plate 342 can give the brush rod 42 a rotation force by contacting the inclined surface, so that the bristles can contact the mounting plate 342 more smoothly.

[0044] Reference Figure 1 and Figure 3 The lifting mechanism 5 includes two hydraulic cylinders 51 fixedly connected to the outer wall of the tower body 1, and the piston rod of each hydraulic cylinder 51 is vertically arranged upward and fixedly connected to a connecting rod 52. The water spray pipes 34 on the same side of each branch pipe 33 in each layer of the spray mechanism 3 are fixedly connected to the same support frame 53, and each support frame 53 includes a support rod 54. The side wall of the tower body 1 is provided with a plurality of guide holes 13, and each guide hole 13 is arranged in a vertical direction.

[0045] One end of each support rod 54 is plugged into a corresponding guide hole 13, and one end of the support rod 54 extends out of the tower body 1 and is fixedly connected to one of the connecting rods 52. A vertically arranged sealing plate 55 is fixedly connected to each support rod 54, and the sealing plate 55 is vertically slidably connected to the outer side wall of the tower body 1, and each sealing plate 55 is used to block the corresponding guide hole 13.

[0046] When the hydraulic cylinder 51 is started, the piston rod of the hydraulic cylinder 51 can be raised or lowered to drive the connecting rod 52 to be raised or lowered, thereby driving the corresponding support frame 53 to be raised or lowered, so as to facilitate the adjustment of the water spray pipes 34 on the same side of each branch pipe 33 to be raised or lowered together.

[0047] The implementation principle of a spray tower for acid mist treatment in the embodiment of the present application is as follows: by setting up multiple water spray pipes 34, the power of the water flow is used to make the driving blades 345 in the water spray pipes 34 drive the installation plate 342 to rotate, thereby realizing all-round spraying of the water spray hole. This design not only improves the uniformity and coverage of the spraying, but also effectively solves the problems of high energy consumption and high maintenance costs of the traditional electric drive method. At the same time, by adding a cleaning component 4, the water spray hole is cleaned regularly, the occurrence of water spray hole blockage is reduced, and the long-term stable operation of the equipment is ensured. Overall, this embodiment significantly improves the effect of acid mist treatment and the reliability of the equipment.

[0048] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A spray tower for acid mist treatment, characterized in that: The invention comprises a tower body (1) and a multi-layer spray mechanism (3) installed inside the tower body (1), each of the spray mechanisms (3) comprising a main water inlet pipe (31), a plurality of water inlet branch pipes (32) connected to the main water inlet pipe (31), a plurality of branch pipes (33) fixed to and connected to each water inlet branch pipe (32), each branch pipe (33) connected to a spray pipe (34), the spray pipe (34) comprising a sleeve pipe (341) connected to the branch pipe (33), A first mounting plate (342) and a second mounting plate (343) are rotatably connected inside the sleeve (341); a rotating shaft (344) is fixedly connected between the first mounting plate (342) and the second mounting plate (343); a plurality of driving blades (345) are fixedly connected to the side wall of the rotating shaft (344); a connection point between the branch pipe (33) and the sleeve (341) is aligned with one of the driving blades (345); and a plurality of water spray holes are provided on the first mounting plate (342).

2. The spray tower for acid mist treatment according to claim 1, characterized in that: The side wall of each branch pipe (33) is connected to two water spray pipes (34), wherein the first plate (342) and the second plate (343) in one of the water spray pipes (34) are arranged vertically, and the first plate (342) and the second plate (343) in the other water spray pipe (34) are arranged vertically.

3. The spray tower for acid mist treatment according to claim 2, characterized in that: The middle portion of the first mounting plate (342) gradually rises in a direction away from the second mounting plate (343).

4. The spray tower for acid mist treatment according to claim 3, characterized in that: A cleaning assembly (4) is installed in each of the water spray pipes (34). Each of the water spray pipes (34) is vertically slidably connected to the corresponding branch pipe (33). The side wall of each branch pipe (33) is provided with two through holes (331). The side wall of each water spray pipe (34) is provided with a long hole (346) connected to the corresponding through hole (331). The length of the long hole (346) is greater than the height of the through hole (331). The cleaning assembly (4) comprises a brush rod (42) hinged to the outer wall of the branch pipe (33). The brush rod (42) is plugged into the long hole (346). A side surface of the brush rod (42) close to the branch pipe (33) is fixedly connected with a plurality of bristles. A torsion spring (44) is installed at the hinge of the brush rod (42). The brush rod (42) extends in the direction of installing a plate (342). A lifting mechanism (5) for driving each water spray pipe (34) to rise and fall is installed on the tower body (1).

5. The spray tower for acid mist treatment according to claim 4, characterized in that: An inclined surface is provided at one end of the brush rod (42) close to the mounting plate (342), and the inclined surface gradually inclines in a direction away from the branch pipe (33) towards a direction close to the mounting plate (342).

6. The spray tower for acid mist treatment according to claim 4, characterized in that: The lifting mechanism (5) comprises two hydraulic cylinders (51) fixedly connected to the outside of the tower body (1); the water spray pipes (34) on the same side of each branch pipe (33) in each layer of the spray mechanism (3) are fixedly connected to the same support frame (53); each support frame (53) comprises a support rod (54); a plurality of vertically arranged guide holes (13) are provided on the side wall of the tower body (1); a connecting rod (52) is fixedly connected to the piston rod of each hydraulic cylinder (51); and each support rod (54) passes through the corresponding guide hole (13) and is fixedly connected to an adjacent connecting rod (52).

7. The spray tower for acid mist treatment according to claim 6, characterized in that: A sealing plate (55) is fixedly connected to each of the support rods (54), one sealing plate (55) corresponds to one guide hole (13), and the sealing plate (55) is slidably connected to the tower body (1) and is used to seal the guide hole (13).

8. The spray tower for acid mist treatment according to claim 1, characterized in that: Each of the driving blades (345) is an arc-shaped blade.

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