Multi-angle spraying treatment tower for waste gas desulfurization

Abstract

The present application relates to the field of waste gas treatment, especially to a multi-angle spraying treatment tower for waste gas desulfurization, which aims to solve the problem that the existing environmental protection balls are generally irregularly filled, and the filling has a certain thickness, which cannot move under the action of waste gas, reduces the disturbance effect on the airflow, and leads to the reduction of the filtering efficiency.The technical scheme is a multi-angle spraying treatment tower for waste gas desulfurization, which comprises a desulfurization tower and an air inlet pipe installed on the lower side of the desulfurization tower.The present application realizes the driving of the movable ball under the action of water flow, and then makes the environmental protection ball move irregularly, improves the waste gas flow time and contact area, strengthens the filtering efficiency, and uses the water flow to quickly cool the inside of the environmental protection ball filling layer, improves the cooling efficiency, and prolongs the service life.

Description

Technical Field

[0001] This invention relates to the field of waste gas treatment, and more particularly to a multi-angle spray treatment tower for waste gas desulfurization. Background Technology

[0002] As a crucial piece of equipment for industrial waste gas desulfurization, the desulfurization tower holds a vital position in the field of waste gas desulfurization treatment. The general workflow of existing desulfurization towers is as follows: sulfur-containing waste gas is introduced into the tower through an inlet pipe. The waste gas then sequentially passes through a filter layer, a spray layer, and an atomization treatment layer. After these treatments, it is discharged from the top of the desulfurization tower, completing the entire desulfurization process. In this process, the filter layer is typically filled with environmentally friendly spheres (usually multi-faceted hollow spheres made of PP material). When the gas passes between these spheres, which have a certain filling thickness, the irregular arrangement or movement of the spheres effectively filters the gas. The current method involves turbulence and slowing the flow of gas to increase the contact area between the gas and the environmental protection balls, thereby improving the filtration effect of solid particulate impurities in the exhaust gas and effectively enhancing the subsequent absorption and treatment of sulfides (as consistent with the packing method in the packing layer of "A Laboratory Acid Waste Gas Purification and Treatment Device with Self-Cleaning Function" in application number 202421774499.7). However, in the above process, since the environmental protection balls are generally irregularly filled with a certain thickness, they cannot move under the action of exhaust gas, reducing their turbulence effect on the airflow and thus reducing their filtration efficiency. Meanwhile, Chinese patent application number 202321164170.4 proposes another filling method for the environmental protection balls, which facilitates replacement, but still suffers from difficulties in overall replacement and ineffective movement of the environmental protection balls. Summary of the Invention

[0003] To overcome the shortcomings of existing environmental protection balls, which are generally irregularly filled with a certain thickness, making them unable to move under the action of exhaust gas, thus reducing their disturbance effect on airflow and resulting in reduced filtration efficiency, this invention provides a multi-angle spray treatment tower for exhaust gas desulfurization.

[0004] The technical solution is as follows: A multi-angle spray treatment tower for waste gas desulfurization includes a desulfurization tower and an inlet pipe installed on the lower side of the desulfurization tower; a water supply pipe for conveying spray water is installed on the desulfurization tower; a spray pipe network is installed inside the desulfurization tower, and the spray pipe network is connected to the water supply pipe; it also includes filter screens; two filter screens, one upper and one lower, are installed inside the desulfurization tower; several sets of elastic element groups are installed inside the desulfurization tower; each set of elastic element groups consists of two symmetrical upper and lower spring telescopic plates, and the elastic element group is located between the two filter screens; each set of elastic element groups is provided with a first partition plate; each set of elastic element groups is provided with a second partition plate, adjacent to the first partition plate. The first and second partitions work together to form a cooling water flow channel; an inlet pipe is installed on the outside of the desulfurization tower; the inlet pipe is connected to the delivery pipe, and a solenoid valve is installed between the inlet pipe and the delivery pipe; the inlet pipe is also connected to all cooling water flow channels; several movable balls for driving the environmental protection balls to move randomly are installed through each first and second partition; a fixed plate is installed between each elastic component group; several square grooves are opened from top to bottom on each first and second partition, and a matching sealing plate is installed in each square groove, and all sealing plates are installed on adjacent fixed plates respectively.

[0005] As an improvement to the above solution, the sprinkler network consists of several sprinkler heads, and the sprinkler heads are connected to the pipes using corrugated pipes.

[0006] As an improvement to the above solution, a set of elastic components is used in conjunction with a first and a second partition plate installed on the corresponding elastic component set to form a sealed cooling water flow channel.

[0007] As an improvement to the above scheme, all the first and second partitions are located between the two filters. Through the cooperation of multiple first and second partitions, the space between the two filters is divided into multiple non-communicating filling spaces.

[0008] As an improvement to the above scheme, each movable ball has protrusions on its surface.

[0009] As an improvement to the above solution, an auxiliary soaking assembly is also included. The auxiliary soaking assembly includes a first rotating shaft, a second rotating shaft, a first limiting plate, a second limiting plate, and a partition plate. A first rotating shaft is provided between the upper side of each first partition plate and the spring telescopic plate above the elastic element group. A second rotating shaft is provided between the upper side of each second partition plate and the spring telescopic plate above the elastic element group. Several first limiting plates and second limiting plates are fixedly connected to the inside of the desulfurization tower, and the first partition plate and the second partition plate are located between two adjacent first limiting plates and the second limiting plate. Several sets of partition plate groups for extending the vertical placement space of the environmental protection ball are installed on the filter screen above. Each partition plate group consists of two partition plates, and each partition plate is in contact with the adjacent spring telescopic plate.

[0010] As an improvement to the above scheme, both the first and second partitions are made of corrosion-resistant metal materials with a certain degree of deformation capability.

[0011] As an improvement to the above scheme, the distance between the first limiting plate and the first partition is equal to the distance between the second limiting plate and the second partition, and this distance is greater than the thickness of the sealing plate.

[0012] As an improvement to the above solution, adjacent first and second partitions that are not located on the same elastic element group can contact each other on their lower sides during the mutual movement and approach process, and cooperate to form a V-shape.

[0013] As an improvement to the above scheme, the middle part of the desulfurization tower is set to be square.

[0014] Beneficial effects: This invention achieves the driving of the moving ball through the action of water flow, thereby making the environmental protection ball move randomly, increasing the exhaust gas flow time and contact area, enhancing filtration efficiency, and using water flow to quickly cool the inside of the environmental protection ball filling layer, improving cooling efficiency and extending its service life.

[0015] By using the first and second partitions to squeeze the environmental protection balls, they can be effectively tested and broken, and at the same time, they can be quickly dropped from the bottom filter screen. If the embrittlement is too severe, the environmental protection balls in different filling spaces need to be replaced instead of replacing them all, which reduces costs and also reduces the difficulty of manual testing, solving the problem of incomplete manual testing.

[0016] By having the lower sides of the adjacent first and second partitions contact each other and combine to form a V-shape, the lower side of the filling space is sealed, ensuring that the environmental protection ball can be soaked and cleaned, thus improving cleaning efficiency. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the three-dimensional structure of the multi-angle spray treatment tower for waste gas desulfurization according to the present invention;

[0018] Figure 2 This is a cross-sectional view of the present invention;

[0019] Figure 3 This is the front view of the present invention;

[0020] Figure 4 This is a three-dimensional structural diagram of the elastic element assembly, the first partition, and the second partition of the present invention.

[0021] Figure 5 This is a three-dimensional structural diagram of the auxiliary soaking component of the present invention.

[0022] The labels in the diagram are as follows: 1-Desulfurization tower, 1001-Filling space, 2-Air inlet pipe, 3-Water supply pipe, 4-Spraying network, 101-Filter screen, 102-Elastic component assembly, 103-First partition plate, 104-Second partition plate, 105-Moving ball, 106-Fixed plate, 107-Blocking plate, 108-First rotating shaft, 109-Second rotating shaft, 110-First limiting plate, 111-Second limiting plate, 112-Divider plate assembly, 113-Water inlet pipe. Detailed Implementation

[0023] The above-described solution will be further illustrated below with reference to specific embodiments. It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of this application. The implementation conditions used in the embodiments may be further adjusted according to the conditions of specific manufacturers, and the implementation conditions not specified are generally those in routine experiments.

[0024] Example 1

[0025] A multi-angle spray treatment tower for waste gas desulfurization, such as Figures 1-5 As shown, it includes a desulfurization tower 1 and an air inlet pipe 2; a water supply pipe 3 is installed on the desulfurization tower 1; a spray pipe network 4 is installed inside the desulfurization tower 1, and the spray pipe network 4 is connected to the water supply pipe 3.

[0026] It also includes a filter screen 101, an elastic element assembly 102, a first partition 103, a second partition 104, a movable ball 105, a fixed plate 106, a sealing plate 107, and a water inlet pipe 113; two filter screens 101 are installed inside the desulfurization tower 1; several sets of elastic element assemblies 102 are installed inside the desulfurization tower 1; each set of elastic element assemblies 102 consists of two symmetrical upper and lower spring telescopic plates, and the elastic element assembly 102 is located between the two filter screens 101; each set of elastic element assemblies 102 is provided with a first partition 103; each set of elastic element assemblies 102 is provided with a second partition 104, and the elastic element assembly 102 is connected to the first partition 103 and the second partition 104 installed on the corresponding elastic element assembly 102. The components are combined to form a sealed cooling water flow channel; an inlet pipe 113 is installed on the outside of the desulfurization tower 1; the inlet pipe 113 is connected to the water supply pipe 3, and a solenoid valve is installed between the inlet pipe 113 and the water supply pipe 3 to control the on / off state of the two; the inlet pipe 113 is also connected to all cooling water flow channels; several movable balls 105 are installed through each first partition 103 and second partition 104; a fixed plate 106 is installed between each elastic component group 102; several square grooves are opened from top to bottom on each first partition 103 and second partition 104, and a matching sealing plate 107 is installed in each square groove, and all sealing plates 107 are installed on adjacent fixed plates 106 respectively.

[0027] The sprinkler network 4 consists of several nozzles, and the nozzles are connected to the pipes by corrugated pipes. Under water pressure, they move randomly, thus enabling multi-angle spraying operations.

[0028] All the first partitions 103 and the second partitions 104 are located between the two filters 101. Through the cooperation of multiple first partitions 103 and second partitions 104, the space between the two filters 101 is divided into multiple non-communicating filling spaces 1001. By placing environmental protection balls in the space from top to bottom in an orderly manner, the filtration operation of exhaust gas is achieved.

[0029] Each movable ball 105 has protrusions on its surface to ensure that the water flow can smoothly drive the movable ball 105 to rotate, thereby driving the environmental protection ball.

[0030] As a crucial piece of equipment for industrial waste gas desulfurization, the desulfurization tower 1 plays a vital role in the field of waste gas desulfurization treatment. The typical workflow of the existing desulfurization tower 1 is as follows: sulfur-containing waste gas is introduced into the tower through the inlet pipe 2. The waste gas then passes through a filter layer, a spray layer, and an atomization treatment layer in sequence. After these treatments, it is discharged from the top of the tower, completing the entire desulfurization process. In this process, the filter layer typically uses environmentally friendly spheres (usually multi-faceted hollow spheres made of PP material) for filtration. When the gas passes between these spheres, which have a certain filling thickness, the irregular arrangement or movement of the spheres turbulence and slows the flow of the gas, increasing the contact area between the gas and the spheres. This improves the filtration effect of the spheres on solid particulate impurities in the waste gas, effectively enhancing the subsequent absorption and treatment of sulfides. However, in the above process, because the environmentally friendly spheres are generally irregularly filled with a certain thickness, they cannot move under the influence of the waste gas, reducing their turbulence effect on the airflow and thus lowering their filtration efficiency.

[0031] To solve the above problems, in the initial state, environmentally friendly balls are manually filled into multiple filling spaces 1001 between two filter screens 101. During filling, each filling space 1001 should be wide enough to accommodate two environmentally friendly balls. After filling, the environmentally friendly balls are in close contact with the corresponding movable balls 105. After filling, sulfur-containing waste gas is normally introduced, and simultaneously, low-temperature spray water is supplied to the water supply pipe 3. At the same time, the solenoid valve between the water supply pipe 3 and the inlet pipe 113 is opened, synchronously supplying water into the inlet pipe 113. At this time, with the entry of gas, the spray network 4 sprays low-temperature water normally. To allow for multi-angle adjustment of the spray, the spray network 4 is composed of several nozzles, and the nozzles are connected to the pipes using corrugated pipes. Under water pressure, these nozzles move randomly, thus achieving multi-angle spraying operation. Based on this, when water flows through the inlet pipe 113... After entering the water flow channel between the first partition 103 and the second partition 104, the water flow drives the movable ball 105 to rotate continuously. This, in turn, drives the environmental protection ball in contact with it, keeping the environmental protection ball in a state of small-amplitude irregular movement. Compared to existing technologies, this ensures effective irregular movement of the environmental protection ball, thereby increasing the contact area and extending the contact time during waste gas flow. This ensures the filtration effect of the environmental protection ball on the waste gas and prevents it from becoming immobile due to the accumulation of layers. Simultaneously, when the water flows through the water flow channel, it effectively and rapidly cools the interior of the environmental protection ball filling layer. This solves the problem of excessively high temperatures in the lower part of the environmental protection ball filling layer, which can easily damage the PP material environmental protection ball and reduce its service life, compared to existing technologies that only use spraying.

[0032] Furthermore, as the environmental protection ball is used for a longer period of time, it may become brittle, resulting in a large number of small fragments. If the number of small fragments is large, it can easily cause the flow channel of sulfur-containing gas to be blocked when it passes through the filling layer, thus preventing it from flowing effectively and affecting its filtration effect. Therefore, during the movement of the environmental protection ball driven by the moving ball 105, the fragments can be effectively made to fall downwards continuously, preventing them from accumulating inside the filling layer.

[0033] Meanwhile, during the desulfurization process, multiple factors affect the desulfurization effect. For example, the environmental protection balls may exhibit the aforementioned embrittlement phenomenon, but they may not necessarily break into small fragments. This makes manual detection difficult, and confirming whether the environmental protection balls need to be replaced is challenging. Furthermore, current technologies require replacing all environmental protection balls at once, which is costly and difficult. Therefore, during shutdown, when water is supplied to the inlet pipe 113 through the water supply pipe 3, the water enters the water flow channel. By increasing the water flow rate, the water pressure is increased, causing the first partition 103 and the second partition 104 located on different elastic component groups 102 to move closer to each other. This gradually compresses the distance between the filling spaces 1001, using the first partition 103 and the second partition 104 to squeeze the environmental protection balls. During the squeezing process, if the environmental protection balls exhibit embrittlement, they can be effectively detected and broken, causing them to fall quickly from the lower filter screen 101. If the embrittlement is too severe, the environmental protection balls in different filling spaces 1001 need to be replaced accordingly, without replacing all of them. This reduces costs, simplifies manual detection, and solves the problem of incomplete manual detection.

[0034] Furthermore, existing technologies are also unable to effectively rinse and clean the environmental protection balls. As the usage time increases, the solid particles adhering to their surface cannot be cleaned, reducing their filtration effect and even blocking gas flow. Therefore, during the above-mentioned testing process, as the first partition 103 and the second partition 104 move, they gradually separate from the sealing plate 107, allowing water to flow through the square groove and directly rinse the environmental protection balls, solving the problem of ineffective cleaning in existing technologies. At the same time, in order to improve cleaning efficiency, since the cooling water cooling and heat dissipation operation is realized during the desulfurization process, subsequent cleaning can also be carried out simultaneously using hot water, improving the cleaning effect, while also being more energy-efficient and environmentally friendly, reducing enterprise maintenance costs.

[0035] Example 2

[0036] Based on Example 1, such as Figure 1 and Figure 5As shown, it also includes an auxiliary soaking assembly, which includes a first rotating shaft 108, a second rotating shaft 109, a first limiting plate 110, a second limiting plate 111, and a partition plate; a first rotating shaft 108 is provided between the upper side of each first partition plate 103 and the spring telescopic plate above the elastic element assembly 102; a second rotating shaft 109 is provided between the upper side of each second partition plate 104 and the spring telescopic plate above the elastic element assembly 102; a plurality of first limiting plates 110 and second limiting plates 111 are fixedly connected to the inner side of the desulfurization tower 1. The first partition 103 and the second partition 104 are located between two adjacent first limiting plates 110 and second limiting plates 111. The first limiting plates 110 and the second limiting plates 111 respectively limit the first partition 103 and the second partition 104. When the first partition 103 and the second partition 104 move to both sides, the upper movement distance of the two is limited. Several sets of partition plate groups 112 are installed on the filter screen 101 located above. Each partition plate group 112 consists of two partitions, and each partition is in contact with the adjacent spring telescopic plate.

[0037] Both the first partition 103 and the second partition 104 are made of corrosion-resistant metal materials with a certain degree of deformation capability, ensuring that their lower sides can fit tightly together after rotation.

[0038] The distance between the first limiting plate 110 and the first partition 103 is equal to the distance between the second limiting plate 111 and the second partition 104, and this distance is greater than the thickness of the sealing plate 107.

[0039] The lower sides of adjacent first partitions 103 and second partitions 104, which are not located on the same elastic element group 102, can contact each other and form a V-shape during mutual movement and approach.

[0040] The middle part of the desulfurization tower 1 is square, which is used to cooperate to achieve the sealing operation after the lower side of the first baffle 103 and the second baffle 104 come into contact.

[0041] Furthermore, during the shutdown cleaning process of the environmental protection balls, immersion cleaning is generally used to improve the cleaning effect. Therefore, as the water pressure increases, the first partition 103 and the second partition 104 gradually move. The first limiting plate 110 and the second limiting plate 111 limit the upper movement distance of the first partition 103 and the second partition 104. That is, when the upper sides of the first partition 103 and the second partition 104 move to contact the corresponding first limiting plate 110 and the second limiting plate 111, they stop moving. However, under the pressure of the water flow, the lower sides of the first partition 103 and the second partition 104 continue to move, thereby causing the upper sides of the first partition 103 and the second partition 104 to rotate around the corresponding first rotating shaft 108 and the second rotating shaft 109, respectively. This causes the lower sides of the adjacent first partition 103 and the second partition 104, which are not located on the same elastic element group 102, to come into contact with each other and form a V-shape. This achieves the sealing operation of the lower side of the filling space 1001, ensuring that the environmental protection ball can be soaked and cleaned, thus improving the cleaning efficiency.

[0042] Although this disclosure has been shown and described with reference to specific exemplary embodiments thereof, those skilled in the art will understand that various changes in form and detail may be made to this disclosure without departing from the spirit and scope of the disclosure as defined by the appended claims and their equivalents. Therefore, the scope of this disclosure should not be limited to the above embodiments, but should be defined not only by the appended claims, but also by their equivalents.

Claims

1. A multi-angle spray treatment tower for waste gas desulfurization, comprising a desulfurization tower (1) and an air inlet pipe (2) installed at the lower side of the desulfurization tower (1); a water delivery pipe (3) for delivering spray water is installed on the desulfurization tower (1); a spray pipe network (4) is installed on the inner side of the desulfurization tower (1), and the spray pipe network (4) is in communication with the water delivery pipe (3); characterized in that, The filter screen (101) is further included; two filter screens (101) are installed on the inner side of the desulfurization tower (1); a plurality of elastic element groups (102) are installed on the inner side of the desulfurization tower (1); each elastic element group (102) is composed of two symmetrical spring expansion plates, and the elastic element group (102) is located between the two filter screens (101); a first partition plate (103) is arranged on each elastic element group (102); a second partition plate (104) is arranged on each elastic element group (102), and the adjacent first partition plate (103) and the second partition plate (104) cooperate to form a cooling water flow passage; a water inlet pipe (113) is installed on the outer side of the desulfurization tower (1); the water inlet pipe (113) is communicated with the water delivery pipe (3), and an electromagnetic valve is arranged between the water inlet pipe (113) and the water delivery pipe (3); the water inlet pipe (113) is communicated with all the cooling water flow passages; a plurality of movable balls (105) for driving the irregular movement of the environmental protection ball are installed on each first partition plate (103) and second partition plate (104); a fixed plate (106) is installed between each elastic element group (102); a plurality of square grooves are formed in each first partition plate (103) and second partition plate (104) from top to bottom, and a sealing plate (107) matched with each square groove is arranged in each square groove, and all the sealing plates (107) are respectively installed on the adjacent fixed plates (106); The auxiliary soaking assembly further includes a first rotating shaft (108), a second rotating shaft (109), a first limiting plate (110), a second limiting plate (111) and a partition plate; a first rotating shaft (108) is arranged between each first partition plate (103) and the spring expansion plate located above the elastic element group (102); a second rotating shaft (109) is arranged between each second partition plate (104) and the spring expansion plate located above the elastic element group (102); a plurality of first limiting plates (110) and second limiting plates (111) are respectively fixedly connected to the inner side of the desulfurization tower (1), and the first partition plate (103) and the second partition plate (104) are located between the adjacent two first limiting plates (110) and second limiting plates (111); a plurality of partition plate groups (112) for lengthening the vertical placement space of the environmental protection ball are installed on the upper filter screen (101), each partition plate group (112) is composed of two partition plates, and each partition plate is in contact with the adjacent spring expansion plate.

2. The multi-angle spray treatment tower for waste gas desulfurization according to claim 1, characterized in that, The spray pipe network (4) is composed of a plurality of spray heads, and the spray head and the pipeline are connected by a corrugated pipe.

3. The multi-angle spray treatment tower for waste gas desulfurization according to claim 1, characterized in that, A sealed cooling water flow passage is formed by cooperation of a group of elastic element groups (102), a first partition plate (103) and a second partition plate (104) installed on the corresponding elastic element group (102).

4. The multi-angle spray treatment tower for waste gas desulfurization according to claim 1, characterized in that, All the first partition plates (103) and the second partition plates (104) are located between the two filter screens (101), and the space between the two filter screens (101) is divided into a plurality of filling spaces (1001) which are not communicated with each other by cooperation of the plurality of first partition plates (103) and the second partition plates (104).

5. The multi-angle spray treatment tower for waste gas desulfurization according to claim 1, characterized in that, Each active ball (105) is provided with a convex surface.

6. The multi-angle spray treatment tower for waste gas desulfurization according to claim 4, characterized in that, The first partition plate (103) and the second partition plate (104) are made of metal material with corrosion resistance and certain deformation capacity.

7. The multi-angle spray treatment tower for waste gas desulfurization according to claim 1, characterized in that, The distance between the first limiting plate (110) and the first partition plate (103) is equal to the distance between the second limiting plate (111) and the second partition plate (104), and the distance is greater than the thickness of the plugging plate (107).

8. The multi-angle spray treatment tower for waste gas desulfurization according to claim 7, characterized in that, The lower sides of the adjacent first partition plate (103) and the second partition plate (104) not located in the same elastic member group (102) can be contacted during the mutual moving close, and a V shape is formed in cooperation.

9. The multi-angle spray treatment tower for waste gas desulfurization according to claim 8, characterized in that, The middle part of the desulfurization tower (1) is square.

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