Multi-angle spraying treatment tower for waste gas desulfurization

Abstract

The invention relates to the field of waste gas treatment, in particular to a multi-angle spraying treatment tower for waste gas desulfurization. The problem to be solved is that an existing environment-friendly ball is generally filled irregularly, has a certain filling thickness and cannot move under the action of waste gas, the disturbance effect of the ball on airflow is reduced, and the filtering efficiency of the ball is reduced. According to the technical scheme, the multi-angle spraying treatment tower for waste gas desulfurization comprises a desulfurization tower and a gas inlet pipe mounted on the lower side of the desulfurization tower, under the action of water flow, the movable ball is driven, then the environment-friendly ball moves irregularly, the waste gas circulation time and contact area are increased, the filtering efficiency is enhanced, the interior of the environment-friendly ball filling layer is rapidly cooled through the water flow, the cooling efficiency is improved, and the service life of the environment-friendly ball filling layer is prolonged.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of waste gas treatment, in particular to a multi-angle spraying treatment tower for waste gas desulfurization. BACKGROUND

[0002] The desulfurization tower is one of the important equipment for industrial waste gas desulfurization, and it has a very important position in the field of waste gas desulfurization treatment. The general working process of the existing desulfurization tower is that the sulfur-containing waste gas is introduced into the desulfurization tower through the inlet pipe, and then the waste gas needs to pass through the filter layer, the spraying layer and the atomization treatment layer in turn. After the above treatment, it is discharged from the top of the desulfurization tower, and the whole desulfurization process is completed. In this process, the filter layer generally uses environmental protection balls (usually pp material multi-face hollow balls) for filling and filtering. When the gas passes between the environmental protection balls with a certain filling thickness, the irregular arrangement or movement of the environmental protection balls realizes the disturbance and slow flow of the gas, increases the contact area between the gas and the environmental protection balls, and thus improves the filtering effect of the environmental protection balls on the solid particle impurities in the waste gas, and effectively improves the subsequent absorption treatment of sulfides (such as the filler layer filler method in the patent application No. 202421774499.7, "Laboratory acid waste gas purification treatment device with self-cleaning function"). However, in the above process, since the environmental protection balls are generally irregularly filled, they have a certain thickness and cannot move under the action of waste gas, which reduces the disturbance effect on the airflow and leads to a decrease in the filtering efficiency. At the same time, another filling method for environmental protection balls is proposed in the Chinese patent No. 202321164170.4, although it realizes the operation of convenient replacement, but still has the problems of difficulty in overall replacement and difficulty in effective movement of environmental protection balls. SUMMARY

[0003] In order to overcome the shortcomings that the existing environmental protection balls are generally irregularly filled, have a certain thickness, cannot move under the action of waste gas, reduce the disturbance effect on the airflow, and lead to a decrease in the filtering efficiency, the present application provides a multi-angle spraying treatment tower for waste gas desulfurization.

[0004] The technical scheme is as follows: a multi-angle spraying treatment tower for waste gas desulfurization, comprising a desulfurization tower and an air inlet pipe installed at the lower side of the desulfurization tower; a water conveying pipe for conveying spraying water is installed on the desulfurization tower; a spraying pipe network is installed on the inner side of the desulfurization tower, and the spraying pipe network is in communication with the water conveying pipe; a filter screen is further included; two filter screens are installed on the inner side of the desulfurization tower; a plurality of elastic element groups are installed on the inner side of the desulfurization tower; each elastic element group is composed of two symmetrical spring expansion plates, and the elastic element group is located between the two filter screens; a first partition plate is arranged on each elastic element group; a second partition plate is arranged on each elastic element group, and adjacent first partition plates and second partition plates cooperate to form cooling water flow channels; a water inlet pipe is installed on the outer side of the desulfurization tower; the water inlet pipe is in communication with the water conveying pipe, and an electromagnetic valve is arranged between the water inlet pipe and the water conveying pipe; the water inlet pipe is in communication with all the cooling water flow channels; a plurality of movable balls for driving the irregular movement of environmental protection balls are arranged on each first partition plate and second partition plate; a fixed plate is arranged between each elastic element group; a plurality of square grooves are formed in each first partition plate and second partition plate from top to bottom, and a sealing plate matched with each square groove is arranged in each square groove, and all the sealing plates are arranged on adjacent fixed plates.

[0005] As an improvement of the above scheme, the spraying pipe network is composed of a plurality of spray heads, and a corrugated pipe is arranged between the spray head and the pipe.

[0006] As an improvement of the above scheme, the sealed cooling water flow channels are formed by a group of elastic elements, a first partition plate and a second partition plate arranged on the corresponding elastic element group.

[0007] As an improvement of the above scheme, all the first partition plates and second partition plates are located between the two filter screens, and the space between the two filter screens is divided into a plurality of filling spaces which are not in communication with each other by the cooperation of the plurality of first partition plates and second partition plates.

[0008] As an improvement of the above scheme, a protrusion is arranged on the surface of each movable ball.

[0009] As an improvement of the above scheme, an auxiliary soaking assembly is further included, and the auxiliary soaking assembly comprises 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 arranged between each first partition plate and the spring expansion plate located above the elastic element group; a second rotating shaft is arranged between each second partition plate and the spring expansion plate located above the elastic element group; a plurality of first limiting plates and second limiting plates are fixedly connected to the inner side of the desulfurization tower, and the first partition plate and the second partition plate are located between adjacent two first limiting plates and second limiting plates; a plurality of partition plate groups for lengthening the vertical placement space of the environmental protection balls are installed on the filter screen located above, each partition plate group is composed of two partition plates, and each partition plate is in contact with the adjacent spring expansion plate.

[0010] As the improvement of the above-mentioned scheme, the first partition plate and the second partition plate are made of corrosion-resistant metal material with certain deformation capacity.

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

[0012] As the improvement of the above-mentioned scheme, the adjacent first partition plate and second partition plate not located on the same elastic member group can be contacted on the lower side during the mutual movement and approach, and form a V shape in cooperation.

[0013] As the improvement of the above-mentioned scheme, the middle part of the desulfurization tower is square.

[0014] Beneficial effects: 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 utilizes the water flow to quickly cool the inside of the environmental protection ball filling layer, improves the cooling efficiency, and prolongs the service life; The first partition plate and the second partition plate are used for extruding the environmental protection ball, which can effectively detect and crush the environmental protection ball, and make the environmental protection ball quickly fall from the lower side of the filter screen. If the embrittlement phenomenon is too serious, the environmental protection ball in the different filling space needs to be replaced, without the need of replacing all, which reduces the cost and reduces the difficulty of manual detection, solves the problem of incomplete manual detection. The lower sides of the adjacent first partition plate and the second partition plate are contacted with each other, and the two are combined into a V shape, so as to realize the blocking operation of the lower side of the filling space, ensure that the environmental protection ball can be soaked and cleaned, and improve the cleaning efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a waste gas desulfurization multi-angle spraying treatment tower three-dimensional structure schematic view of the present application; Figure 2 It is a sectional view of the present application; Figure 3 It is a front view of the present application; Figure 4 It is a three-dimensional structure schematic view of the combination of the elastic member group, the first partition plate and the second partition plate of the present application; Figure 5 It is a three-dimensional structure schematic view of the auxiliary soaking assembly of the present application.

[0016] 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

[0017] 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.

[0018] Example 1 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. 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.

[0019] 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.

[0020] 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.

[0021] 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.

[0022] 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.

[0023] 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.

[0024] 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.

[0025] 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.

[0026] 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.

[0027] Example 2 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.

[0028] 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.

[0029] 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.

[0030] 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.

[0031] 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.

[0032] 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.

[0033] 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 desulfurization of waste gas, comprising a desulfurization tower (1) and an inlet pipe (2) installed on the lower side of the desulfurization tower (1); a water supply pipe (3) for conveying spray water 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); characterized in that, It also includes a filter screen (101); two filter screens (101) are installed inside the desulfurization tower (1); several sets of elastic component groups (102) are installed inside the desulfurization tower (1); each set of elastic component groups (102) consists of two symmetrical spring telescopic plates, and the elastic component group (102) is located between the two filter screens (101); each set of elastic component groups (102) is provided with a first partition (103); each set of elastic component groups (102) is provided with a second partition (104), and the adjacent first partition (103) and second partition (104) cooperate to form a cooling water flow channel; an inlet pipe (113) is installed on the outside of the desulfurization tower (1); the inlet pipe (113) and The water supply pipe (3) is connected, and an electromagnetic valve is provided between the water inlet pipe (113) and the water supply pipe (3); the water inlet pipe (113) is also connected to all cooling water flow channels; several movable balls (105) for driving the environmental protection ball to move randomly 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 provided in each square groove, and all sealing plates (107) are installed on adjacent fixed plates (106).

2. The multi-angle spray treatment tower for waste gas desulfurization according to claim 1, characterized in that, The sprinkler network (4) consists of several nozzles, and the nozzles and pipes are connected by corrugated pipes.

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

4. The multi-angle spray treatment tower for desulfurization of waste gas according to claim 1, characterized in that, 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).

5. The multi-angle spray treatment tower for desulfurization of waste gas according to claim 1, characterized in that, Each active ball (105) has protrusions on its surface.

6. The multi-angle spray treatment tower for waste gas desulfurization according to claim 1, characterized in that, 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); Several first limiting plates (110) and second limiting plates (111) are fixedly connected to the inside of the sulfur tower (1), and the first partition (103) and the second partition (104) are located between two adjacent first limiting plates (110) and second limiting plates (111); several sets of partition plates (112) for extending the vertical placement space of the environmental protection ball are installed on the filter screen (101) above. Each partition plate set (112) consists of two partitions, and each partition is in contact with the adjacent spring telescopic plate.

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

8. A multi-angle spray treatment tower for desulfurization of waste gas according to claim 6, characterized in that, 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).

9. A multi-angle spray treatment tower for desulfurization of waste gas according to claim 8, characterized in that, The adjacent first partition (103) and second partition (104) that are not located on the same elastic element group (102) can contact each other on their lower sides during the process of moving closer to each other, and cooperate to form a V shape.

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

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