Spray tower for waste gas treatment

Abstract

The invention relates to the technical field of spray towers, in particular to a spray tower for waste gas treatment, which comprises a tower body and a spray pipe, and further comprises a mounting filter plate arranged in the tower body; the lifting filter plate is movably arranged in the tower body and is matched with the filter plate to form a movable filler layer; the fan blades are rotationally arranged in the tower body; according to the spray tower for waste gas treatment, when a worker treats waste gas, the waste gas entering the tower body is used for driving the fan blades to rotate, and then the rotary material stirring unit is driven to work, so that the waste gas treatment efficiency is improved, and the waste gas treatment efficiency is improved. And the filler is stirred according to the blockage condition of the movable filler layer, so that the blockage phenomenon of the filler is effectively prevented, and the continuity and stability of tail gas treatment are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of spray towers, and specifically to a spray tower for waste gas treatment. Background Art

[0002] With the increasing awareness of environmental protection, tail gas purification technologies have been widely studied and applied. As an important part of tail gas treatment, the performance of the tail gas purification and washing device is directly related to the efficiency and quality of tail gas treatment. Traditional tail gas purification and washing devices usually adopt a spray tower structure, and the tail gas is purified and washed by contacting the spray liquid with the tail gas.

[0003] A packing layer is provided in the spray tower. As a mass transfer device for the contact component between gas and liquid phases, a packing support plate is installed in the packing tower. The packing is placed on the support plate in a random manner, and a packing pressing plate is installed above the packing to prevent it from being blown by the upward airflow. The spray liquid of the spray tower is sprayed from the top of the tower onto the packing through a liquid distributor and flows down along the surface of the packing. The gas is fed from the bottom of the tower, and after being distributed by the gas distribution device, it passes through the voids of the packing layer in countercurrent with the liquid. On the surface of the packing, the gas-liquid two phases are in close contact for mass transfer.

[0004] However, in actual applications, due to the complex composition and large treatment volume of the tail gas, impurities are likely to accumulate inside the packing layer in the spray tower. As a result, when the liquid flows downward along the packing layer, it has a tendency to gradually concentrate towards the tower wall, causing the liquid flow rate near the tower wall to gradually increase, that is, the wall flow effect will occur. This effect will cause uneven distribution of the gas-liquid two phases in the packing layer, resulting in a decrease in mass transfer efficiency, leading to packing blockage, and further affecting the efficiency and effect of tail gas treatment. For this reason, we propose a spray tower for waste gas treatment. Summary of the Invention

[0005] One technical problem to be solved by this application is: how to design a spray tower for waste gas treatment that can stir and mix the packing layer.

[0006] To solve the above technical problem, the embodiment of this application provides a spray tower for waste gas treatment, including a tower body and a spray pipe, and further including:

[0007] An installation filter plate, which is arranged inside the tower body;

[0008] A lifting filter plate, which is movably arranged inside the tower body and cooperates with the installation filter plate to form a movable packing layer;

[0009] A fan blade, which is rotatably arranged inside the tower body;

[0010] Rotary feeding unit, the rotary feeding unit is arranged in the tower body and is connected to the installation of the filter plate and the lifting filter. The waste gas entering the tower body drives the fan blades to rotate, thereby driving the rotary feeding unit to work, and stirring the packing according to the blockage condition of the movable packing layer.

[0011] In some embodiments, the rotary feeding unit includes a fixed bracket arranged in the tower body, and a lifting member is arranged on the fixed bracket for adjusting the position of the lifting filter plate, thereby adjusting the packing layer. A rotating member connected to the lifting filter plate is arranged in the tower body for driving the lifting filter plate to rotate synchronously therewith when the fan blades rotate. A plurality of dial rods are movably arranged in the tower body, and a deployment assembly is arranged in the tower body for deploying the dial rods to stir the packing when the packing layer is blocked.

[0012] In some embodiments, the lifting member includes a plurality of reset springs uniformly arranged on the fixed bracket. A lifting ring is slidably arranged on the fixed bracket, and the reset springs are all connected to the lifting ring. The lifting filter plate is rotatably arranged in the middle of the lifting ring.

[0013] In some embodiments, the rotating member includes a connecting seat rotatably arranged in the middle of the installation filter plate. A fixed shaft is slidably arranged in the connecting seat. The fan blade is arranged at one end of the fixed shaft close to the air inlet of the tower body. A hollow shaft is arranged on the lifting filter plate, and the end of the hollow shaft is connected to the fixed shaft.

[0014] In some embodiments, a plurality of installation grooves are uniformly formed around the hollow shaft, and a plurality of the dial rods are respectively movably arranged in the installation grooves. The deployment assembly includes an installation pipe arranged on the lifting filter plate. A radial rod is rotatably arranged on the fixed bracket. A plurality of fixed racks respectively matched with the installation grooves are uniformly arranged on the outer side of the radial rod. The installation pipe is slidably arranged on the outer side of the radial rod. A plurality of transmission members respectively matched with the fixed racks are arranged on the hollow shaft for driving adjacent dial rods to deploy. A displacement rod is slidably arranged at the end of the dial rod. A plurality of ejecting members respectively matched with the dial rods are arranged on the hollow shaft for driving the displacement rod to extend synchronously when the dial rods are deployed.

[0015] In some embodiments, the transmission member includes a support frame arranged on the inner wall of the hollow shaft. A transmission shaft is rotatably arranged on the support frame. The dial rod is arranged on the transmission shaft, and a gear matched with the adjacent fixed rack is arranged on the transmission shaft.

[0016] In some embodiments, a limiting plate is arranged at the bottom of the radial rod.

[0017] In some embodiments, the lever is provided with an activity groove, the displacement rod is slidably arranged in the activity groove, the ejector includes an ejector spring arranged in the activity groove, the end of the ejector spring is connected to the displacement rod, the lever and the side wall of the hollow shaft are both provided with wire grooves, a wire rope is arranged on the radial rod, the wire rope sequentially passes through the wire grooves on the hollow shaft and the lever, and is connected to the displacement rod.

[0018] In some embodiments, a multi-stage telescopic baffle is arranged in the activity groove, and the multi-stage telescopic baffle is located between the ejector spring and the wire rope.

[0019] In some embodiments, an annular groove is formed on the lever, and a multi-stage telescopic guard plate is arranged in the annular groove, and the multi-stage telescopic guard plate is connected to the displacement rod.

[0020] The present invention has at least the following beneficial effects:

[0021] 1. Preventing the blockage of the packing layer: Through the movable packing layer formed by the lifting filter plate and the installation filter plate, and the stirring action of the rotary feeding unit, the packing can be adjusted and stirred in time according to the blockage condition of the packing layer, effectively preventing the blockage phenomenon of the packing, and improving the continuity and stability of tail gas treatment;

[0022] 2. Optimizing gas-liquid distribution: The rotation of the fan blade not only drives the operation of the rotary feeding unit, but also realizes the synchronous rotation of the lifting filter plate and the unfolding of the lever through a series of transmission mechanisms, such as lifting parts, rotating parts, etc. This design helps to break the tendency of liquid to concentrate towards the tower wall when flowing downward along the packing layer, that is, the wall flow effect, thereby optimizing the distribution of gas-liquid two phases in the packing layer and improving the mass transfer efficiency;

[0023] 3. Improving the tail gas treatment efficiency: Since the blockage of the packing is effectively prevented and the gas-liquid distribution is optimized, this spray tower can make more full use of the treatment capacity of the packing layer, improve the efficiency and effect of tail gas treatment, which is particularly important for treating tail gas with complex components and large treatment volume, and helps to reduce environmental pollution and improve the sustainability of industrial production. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0025] Figure 2 is of the present invention Figure 1 a schematic diagram of the structure from another orientation;

[0026] Figure 3 is a schematic diagram of the overall partial cross-sectional structure of the present invention;

[0027] Figure 4 is of the present invention Figure 3 a schematic diagram of the structure from another orientation;

[0028] Figure 5 Schematic diagram of the overall sectional plane structure of the present invention;

[0029] Figure 6 Schematic diagram of the structure of the rotary feeding unit of the present invention;

[0030] Figure 7 Explosion schematic diagram of the structure of the rotating part of the present invention;

[0031] Figure 8 Schematic diagram of the sectional structure of the rotary feeding unit of the present invention;

[0032] Figure 9 Schematic diagram of the sectional structure of the unfolding component of the present invention;

[0033] Figure 10 For the present invention Figure 9 Schematic diagram of the enlarged structure of area A in;

[0034] Figure 11 Schematic diagram of the structure of the radial rod and a single dial rod of the present invention;

[0035] Figure 12 Schematic diagram of the installation structure of the multi-stage telescopic baffle and the multi-stage telescopic guard plate in Embodiment 2 of the present invention;

[0036] Figure 13 Explosion schematic diagram of the multi-stage telescopic guard plate and the shift rod of the present invention.

[0037] In the figure: 1, tower body; 2, spray pipe; 3, rotary feeding unit; 31, fixed bracket; 32, dial rod; 4, lifting member; 41, return spring; 42, lifting ring; 5, rotating member; 51, connecting seat; 52, fixed shaft; 53, hollow shaft; 6, unfolding component; 61, installation groove; 62, installation pipe; 63, radial rod; 64, fixed rack; 65, shift rod; 7, transmission member; 71, support frame; 72, transmission shaft; 73, gear; 8, ejecting member; 81, movable groove; 82, ejecting spring; 83, wire rope; 9, installation filter plate; 10, lifting filter plate; 11, fan blade; 12, limiting plate; 13, multi-stage telescopic baffle; 14, annular groove; 15, multi-stage telescopic guard plate. Detailed implementation manners

[0038] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without making creative efforts belong to the scope of protection of the present invention.

[0039] Embodiment 1

[0040] See also Figures 1 - 11 , the present invention provides a technical solution:

[0041] A spray tower for waste gas treatment includes a tower body 1 and a spray pipe 2. The tower body 1 and the spray pipe 2 are both common structures in the prior art and will not be described in detail herein. The tower body 1 and the spray pipe 2 also include:

[0042] Install the filter plate 9, the filter plate 9 is arranged in the tower body 1, the filter plate 9 is a fixed structure, and a through hole for installing the connecting seat 51 is opened in the middle;

[0043] A lifting filter plate 10, which is movably arranged in the tower body 1 and cooperates with the filter plate 9 to form a movable packing layer. The lifting filter plate 10 is a movable structure, and a through hole for installing the radial rod 63 is opened in the middle;

[0044] When the packing layer is not blocked, the packing layer formed between the installation filter plate 9 and the lifting filter plate 10 is of almost fixed size. The rotation of the lifting filter plate 10 makes the internal packing move slightly, thereby ensuring the effective contact between the exhaust gas and the packing. When the packing layer is blocked, the resistance to the exhaust gas increases, and the exhaust gas pushes the lifting filter plate 10 to start rising. At this time, the packing layer formed between the installation filter plate 9 and the lifting filter plate 10 is of non-fixed size, and the size gradually increases. Then the rotary material-dispensing unit 3 starts to work, completes the mixing of the packing layer, and then under the action of the reset spring 41, the lifting filter plate 10 is reset;

[0045] The fan blades 11 are rotatably arranged in the tower body 1;

[0046] The rotary material-dispensing unit 3 is arranged in the tower body 1 and is connected with the filter plate 9 and the lifting filter. The exhaust gas entering the tower body 1 drives the fan blades 11 to rotate, thereby driving the rotary material-dispensing unit 3 to work, and stirs the filler according to the blockage of the movable filler layer;

[0047] The rotary material-dispensing unit 3 comprises a fixed bracket 31 arranged in the tower body 1, and a lifting member 4 is arranged on the fixed bracket 31, which is used to adjust the position of the lifting filter plate 10, thereby adjusting the packing layer. A rotating member 5 connected to the lifting filter plate 10 is arranged in the tower body 1, which is used to drive the lifting filter plate 10 to rotate synchronously with the fan blade 11 when the fan blade 11 rotates. A plurality of levers 32 are movably arranged in the tower body 1, and an unfolding component 6 is arranged in the tower body 1, which is used to unfold the lever 32 to stir the packing when the packing layer is blocked;

[0048] The lifting member 4 includes a plurality of reset springs 41 uniformly arranged on the fixed bracket 31. A lifting ring 42 is slidably arranged on the fixed bracket 31. The reset springs 41 are all connected to the lifting ring 42. The lifting filter plate 10 is rotatably arranged in the middle of the lifting ring 42;

[0049] The rotating member 5 includes a connecting seat 51 rotatably arranged in the middle of the installation filter plate 9. A fixed shaft 52 is slidably arranged in the connecting seat 51. The fan blade 11 is arranged at one end of the fixed shaft 52 close to the air inlet of the tower body 1. A hollow shaft 53 is arranged on the lifting filter plate 10. The end of the hollow shaft 53 is connected to the fixed shaft 52;

[0050] A plurality of installation grooves 61 are uniformly formed around the hollow shaft 53. A plurality of the shift rods 32 are respectively movably arranged in the installation grooves 61. The unfolding assembly 6 includes an installation pipe 62 arranged on the lifting filter plate 10. A radial rod 63 is rotatably arranged on the fixed bracket 31. A plurality of fixed racks 64 respectively matched with the installation grooves 61 are uniformly arranged on the outer side of the radial rod 63. The installation pipe 62 is slidably arranged on the outer side of the radial rod 63. A plurality of transmission members 7 respectively matched with the fixed racks 64 are arranged on the hollow shaft 53 for driving the adjacent shift rods 32 to unfold. A displacement rod 65 is slidably arranged at the end of the shift rod 32. A plurality of ejecting members 8 respectively matched with the shift rods 32 are arranged on the hollow shaft 53 for driving the displacement rod 65 to extend synchronously when the shift rod 32 unfolds. Since the waste gas enters from below the spray tower, the packing at the bottom is more likely to be blocked. Therefore, in this solution, the shift rod 32 is arranged to unfold from below. At the same time, the displacement rod 65 also extends from below, ensuring the priority stirring and mixing of the bottom packing, and improving the treatment efficiency and treatment effect;

[0051] The transmission member 7 includes a support frame 71 arranged on the inner wall of the hollow shaft 53. A transmission shaft 72 is rotatably arranged on the support frame 71. The shift rod 32 is arranged on the transmission shaft 72. A gear 73 matched with the adjacent fixed rack 64 is arranged on the transmission shaft 72;

[0052] A limiting plate 12 is arranged at the bottom of the radial rod 63;

[0053] Each of the shift rods 32 is provided with a movable groove 81. The displacement rod 65 is slidably arranged in the movable groove 81. The ejecting member 8 includes an ejecting spring 82 arranged in the movable groove 81. The end of the ejecting spring 82 is connected to the displacement rod 65. Thread grooves are formed on the side walls of the shift rod 32 and the hollow shaft 53. A wire rope 83 is arranged on the radial rod 63. The wire rope 83 sequentially passes through the thread grooves on the hollow shaft 53 and the shift rod 32 and is connected to the displacement rod 65.

[0054] During use, the spray tower for waste gas treatment realizes the intelligent adjustment and efficient stirring and mixing of the packing layer by introducing innovative designs such as the installation filter plate 9, the lifting filter plate 10, the fan blade 11, and the rotary feeding unit 3;

[0055] When not blocked, the packing layer formed between the installation filter plate 9 and the lifting filter plate 10 maintains an almost fixed size. The rotation of the fan blade 11 drives the rotation of the fixed shaft 52, and the fixed shaft 52 drives the hollow shaft 53 and the lifting filter plate 10 to rotate. The rotation of the lifting filter plate 10 ensures the effective contact between the waste gas and the packing;

[0056] When blocked, the resistance of the packing layer to the waste gas increases, the lifting filter plate 10 rises, the fixed shaft 52 rises and falls in the connecting seat 51, the lifting filter plate 10 rises on the fixed support 31, and the size of the packing layer gradually becomes larger. At the same time, using the rotational energy of the fan blade 11, the lifting filter plate 10 still continues to rotate. When the hollow shaft 53 and the lifting filter plate 10 rise, the cooperation of the fixed rack 64 and the gear 73 can deploy the dial rod 32 from below and preferentially stir and mix the bottom packing, effectively preventing the blockage of the packing and improving the treatment efficiency and effect;

[0057] When the hollow shaft 53 rises, the wire rope 83 at one end of the dial rod 32 continuously approaches the wire rope 83 at one end of the radial rod 63, making the wire rope 83 loose. This enables the ejecting spring 82 to drive the displacement rod 65 to move outwards, increasing the stirring range.

[0058] In addition, the design of the return spring 41 ensures the automatic reset of the lifting filter plate 10 after stirring is completed, maintaining the stability of the packing layer. The overall structure is designed compactly, and the connection of each component is reasonable, facilitating daily maintenance and repair.

[0059] Embodiment 2

[0060] Please refer to Figures 12 - 13 , the present invention provides a technical solution:

[0061] Different from Embodiment 1, a multi-stage telescopic baffle 13 is arranged in the movable groove 81. The multi-stage telescopic baffle 13 is located between the ejecting spring 82 and the wire rope 83. Through the arrangement of the multi-stage telescopic baffle 13, it is beneficial to avoid the wire rope 83 getting stuck on the ejecting spring 82 and beneficial to ensuring the stability of the operation of each structure;

[0062] An annular groove 14 is formed on the dial rod 32, and a multi-stage telescopic guard plate 15 is arranged in the annular groove 14. The multi-stage telescopic guard plate 15 is connected to the displacement rod 65. The arrangement of the multi-stage telescopic guard plate 15 can prevent the packing from entering between the displacement rod 65 and the dial rod 32, which is beneficial to ensuring the normal reset of the displacement rod 65.

[0063] Although embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention.

Claims

1. A spray tower for waste gas treatment, comprising a tower body (1) and a spray pipe (2), characterized in that: Also included are: Installing a filter plate (9), wherein the filter plate (9) is arranged in the tower body (1); A lifting filter plate (10), wherein the lifting filter plate (10) is movably arranged in the tower body (1) and cooperates with the installed filter plate (9) to form a movable packing layer; A fan blade (11), wherein the fan blade (11) is rotatably arranged in the tower body (1); The rotary material-dispensing unit (3) is arranged in the tower body (1) and is connected to the filter plate (9) and the lifting filter. The exhaust gas entering the tower body (1) drives the fan blade (11) to rotate, thereby driving the rotary material-dispensing unit (3) to work, and stirring the filler according to the blockage condition of the movable filler layer.

2. The waste gas treatment spray tower according to claim 1, characterized in that: The rotary material shifting unit (3) comprises a fixed support (31) arranged in a tower body (1); a lifting member (4) is arranged on the fixed support (31) for adjusting the position of the lifting filter plate (10) and thereby adjusting the packing layer; a rotating member (5) connected to the lifting filter plate (10) is arranged in the tower body (1) for driving the lifting filter plate (10) to rotate synchronously with the fan blade (11) when the fan blade (11) rotates; a plurality of shifting rods (32) are movably arranged in the tower body (1); and an unfolding assembly (6) is arranged in the tower body (1) for unfolding the shifting rods (32) to stir the packing when the packing layer is clogged.

3. The spray tower for waste gas treatment according to claim 2, characterized in that: The lifting member (4) comprises a plurality of return springs (41) uniformly arranged on a fixed bracket (31); a lifting ring (42) is slidably arranged on the fixed bracket (31); the return springs (41) are all connected to the lifting ring (42); and the lifting filter plate (10) is rotatably arranged in the middle of the lifting ring (42).

4. The waste gas treatment spray tower according to claim 3, characterized in that: The rotating member (5) comprises a connecting seat (51) rotatably arranged in the middle of the installation filter plate (9), a fixed shaft (52) is slidably arranged in the connecting seat (51), the fan blade (11) is arranged at one end of the fixed shaft (52) close to the air inlet of the tower body (1), and a hollow shaft (53) is arranged on the lifting filter plate (10), and the end of the hollow shaft (53) is connected to the fixed shaft (52).

5. The spray tower for waste gas treatment according to claim 4, characterized in that: A plurality of mounting grooves (61) are evenly arranged around the hollow shaft (53), and a plurality of the levers (32) are movably arranged in the mounting grooves (61). The unfolding assembly (6) comprises a mounting tube (62) arranged on the lifting filter plate (10). A radial rod (63) is rotatably arranged on the fixed bracket (31). A plurality of fixed racks (64) respectively matched with the mounting grooves (61) are evenly arranged on the outer side of the radial rod (63). The mounting tube (62) is slidably arranged on the outer side of the radial rod (63). A plurality of transmission members (7) respectively matched with the fixed racks (64) are arranged on the hollow shaft (53) for driving the adjacent levers (32) to unfold. A shift rod (65) is slidably arranged at the end of the lever (32). A plurality of ejection members (8) respectively matched with the lever (32) are arranged on the hollow shaft (53) for driving the shift rod (65) to extend synchronously when the lever (32) is unfolded.

6. The waste gas treatment spray tower according to claim 5, characterized in that: The transmission member (7) comprises a support frame (71) arranged on the inner wall of the hollow shaft (53), a transmission shaft (72) being rotatably arranged on the support frame (71), the shifting rod (32) being arranged on the transmission shaft (72), and a gear (73) being arranged on the transmission shaft (72) and cooperating with an adjacent fixed rack (64).

7. The waste gas treatment spray tower according to claim 6, characterized in that: A limiting plate (12) is provided at the bottom of the radial rod (63).

8. The waste gas treatment spray tower according to claim 7, characterized in that: The shift rod (32) is provided with a movable groove (81), the shift rod (65) is slidably arranged in the movable groove (81), the ejection member (8) comprises an ejection spring (82) arranged in the movable groove (81), the end of the ejection spring (82) is connected to the shift rod (65), the shift rod (32) and the side wall of the hollow shaft (53) are provided with a wire groove, the radial rod (63) is provided with a wire rope (83), the wire rope (83) passes through the wire grooves on the hollow shaft (53) and the shift rod (32) in sequence, and is connected to the shift rod (65).

9. The waste gas treatment spray tower according to claim 8, characterized in that: A multi-stage telescopic baffle (13) is arranged in the movable groove (81), and the multi-stage telescopic baffle (13) is located between the ejection spring (82) and the wire rope (83).

10. The spray tower for waste gas treatment according to claim 5, characterized in that: An annular groove (14) is provided on the shifting rod (32), a multi-stage telescopic guard plate (15) is arranged in the annular groove (14), and the multi-stage telescopic guard plate (15) is connected to the shifting rod (65).

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