Sodium hypochlorite interlocking tail gas absorption tower

By treating the exhaust gas from the sodium hypochlorite preparation process through multi-stage filtration and catalytic oxidation, and utilizing particulate filter plates, waste gas adsorption nets, and spray pipes in conjunction with catalysts, the environmental pollution and health hazards caused by direct exhaust gas emissions are solved, achieving a purification effect on the exhaust gas.

CN224056944UActive Publication Date: 2026-03-31WUWEI HECAI CHEM CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-11
Publication Date
2026-03-31

AI Technical Summary

Technical Problem

The interlocking exhaust gases generated during the preparation of sodium hypochlorite are directly emitted, causing environmental pollution and health hazards. Existing technologies have failed to effectively purify the toxic substances.

Method used

The exhaust gas is treated by multi-stage filtration and catalytic oxidation. The process utilizes particulate filter plates, exhaust gas adsorption nets, and spray pipes in conjunction with a catalyst to oxidize hydrocarbons in organic waste gas into carbon dioxide and water at low temperatures.

Benefits of technology

It achieves multiple purification of exhaust gas, ensuring that the emitted gas does not contain toxic substances, thus protecting the environment and health.

✦ Generated by Eureka AI based on patent content.

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Abstract

The sodium hypochlorite interlocking tail gas absorption tower comprises a storage tower, the right side of the storage tower is communicated with a treatment box through an absorption pump, the right side of the treatment box is communicated with an absorption tower through an absorption pump, and a particle filter plate is vertically installed on the left side of an inner cavity of the treatment box. And a waste gas adsorption net is installed on the right side of the particle filtering plate, a storage box is installed on the back face of the treatment box, and the top of the storage box communicates with a conveying pump. According to the tail gas treatment device, the spraying pipe is additionally arranged in the treatment box and matched with the particle filter plate and the waste gas adsorption net on the left side to perform multiple filtration and treatment on tail gas, and a catalytic oxidation method is adopted in the treatment box to effectively treat the tail gas; hydrocarbon in the organic waste gas is rapidly oxidized into carbon dioxide and water at a low temperature by using the catalyst, so that the purpose of purification is achieved, and the discharged tail gas can be ensured not to generate toxic substances.
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Description

Technical Field

[0001] This utility model relates to the field of exhaust gas treatment technology, specifically to a sodium hypochlorite interlocking exhaust gas absorption tower. Background Technology

[0002] In industry, sodium hydroxide, chlorine, and hydrogen are produced by electrolyzing saturated sodium chloride solution. These are then used as raw materials to produce a series of chemical products, a process known as the chlor-alkali industry. Sodium hypochlorite, also known as sodium chloride, is commonly used as a purifying agent, disinfectant, and bleaching agent. The mass concentration of common sodium hypochlorite solution products ranges from 5% to 13%. Sodium hypochlorite production is also a branch of the chlor-alkali industry. Common preparation methods for sodium hypochlorite include liquid alkali chlorination and electrolysis. However, the interlocking tail gas generated during sodium hypochlorite preparation is generally directly emitted. The particulate matter and toxic substances contained in the tail gas can pollute the environment and harm human health. Therefore, we propose a sodium hypochlorite interlocking tail gas absorption tower, which uses a catalyst to rapidly oxidize hydrocarbons in organic waste gas into carbon dioxide and water at a lower temperature, thereby achieving the purpose of purification. Utility Model Content

[0003] The purpose of this invention is to provide a sodium hypochlorite interlocking tail gas absorption tower, which has the advantage of multi-stage treatment of tail gas.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a sodium hypochlorite interlocking tail gas absorption tower, comprising a storage tower, a treatment tank connected to the right side of the storage tower via an absorption pump, an absorption tower connected to the right side of the treatment tank via an absorption pump, a particle filter plate vertically installed on the left side of the inner cavity of the treatment tank, a waste gas adsorption mesh installed on the right side of the particle filter plate, a storage tank installed on the back of the treatment tank, a delivery pump connected to the top of the storage tank, a spray pipe extending from the outlet pipe of the delivery pump into the interior of the treatment tank, and a nozzle connected to the bottom of the spray pipe.

[0005] As a preferred embodiment, a sealing partition is sealed and installed on the upper right side of the inner cavity of the processing box. The sealing partition is sleeved on the outside of one end of the liquid outlet pipe. A support frame is fixedly installed on the back of the processing box, and the support frame is wrapped around the outside of the storage box.

[0006] As a preferred embodiment, limit frames are fixedly installed on both the front and rear sides of the left end of the processing box cavity, and the end of the particle filter plate is vertically inserted into the inside of the limit frames.

[0007] As a preferred embodiment, an isolation net is embedded in the upper part of the front of the processing box, and guide rods are fixedly installed at both ends of the isolation net on the front of the processing box. A sealing pull plate is slidably installed on the outside of the guide rods, and a sealing gasket that works with the isolation net is installed on the back of the sealing pull plate.

[0008] As a preferred embodiment, two sets of spray pipes are arranged inside the treatment box and installed symmetrically in the longitudinal direction, and the sealing partition is installed below the spray pipes.

[0009] As a preferred embodiment, the right side of the particle filter plate is attached to the connection point with the waste gas adsorption net, and the adsorption structure inside the waste gas adsorption net is arranged horizontally.

[0010] As a preferred embodiment, the top cover of the processing tank is designed to be detachable, and the liquid outlet pipe is connected to the top cover through a sealing ring.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] 1. This utility model adds a spray pipe inside the treatment box and works with a particle filter plate and a waste gas adsorption net on the left side to perform multiple filtration and treatment of the exhaust gas. Inside the treatment box, a catalytic oxidation method is used to effectively treat the exhaust gas. The catalyst is used to rapidly oxidize the hydrocarbons in the organic waste gas into carbon dioxide and water at a low temperature, thereby achieving the purpose of purification and ensuring that the exhaust gas after discharge will not produce toxic substances.

[0013] 2. The main function of the limiting frame in this utility model is to limit the end of the particle filter plate, which can be quickly installed inside the processing box. At the same time, the isolation net on the front of the processing box can be sealed by the sealing pull plate, and it can also be removed from the surface to facilitate the processing and ventilation of the inside of the processing box. Attached Figure Description

[0014] Figure 1 This is a first-person perspective structural perspective view of the present invention;

[0015] Figure 2 This is a second-view perspective structural perspective view of the present invention;

[0016] Figure 3 This is a partial structural cross-sectional view of the present invention;

[0017] Figure 4 This is a partial structural cross-sectional view of the present invention from another perspective;

[0018] Figure 5 This is a partial view of the internal structure of the processing box of this utility model.

[0019] In the diagram: 1. Storage tower; 2. Absorption tower; 3. Processing tank; 4. Particle filter plate; 5. Limiting frame; 6. Waste gas adsorption net; 7. Sealing partition; 8. Support frame; 9. Storage tank; 10. Transfer pump; 11. Spray pipe; 12. Nozzle; 13. Isolation net; 14. Sealing pull plate. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0022] Example 1:

[0023] Please see Figure 1 As shown, this utility model provides a sodium hypochlorite interlocking tail gas absorption tower, including a storage tower 1. The right side of the storage tower 1 is connected to a treatment tank 3 via an absorption pump. The right side of the treatment tank 3 is connected to an absorption tower 2 via an absorption pump. A particle filter plate 4 is vertically installed on the left side of the inner cavity of the treatment tank 3. A waste gas adsorption net 6 is installed on the right side of the particle filter plate 4. A storage tank 9 is installed on the back of the treatment tank 3. A transfer pump 10 is connected to the top of the storage tank 9. The outlet pipe of the transfer pump 10 passes through the interior of the treatment tank 3 and is connected to a spray pipe 11. A nozzle 12 is connected to the bottom of the spray pipe 11.

[0024] This technical solution utilizes a particle filter plate 4, a waste gas adsorption net 6, and a spray pipe 11. The spray pipe 11, added inside the treatment chamber 3, works in conjunction with the particle filter plate 4 and waste gas adsorption net 6 on the left side to perform multiple filtrations and treatments on the exhaust gas. Furthermore, a catalytic oxidation method is employed inside the treatment chamber 3 to effectively treat the exhaust gas. A catalyst is used to rapidly oxidize the hydrocarbons in the organic waste gas into carbon dioxide and water at a relatively low temperature, thereby achieving purification and ensuring that the emitted exhaust gas does not produce toxic substances.

[0025] Example 2:

[0026] Based on Embodiment 1, this utility model is as follows: Figure 2 As shown, a sealing partition 7 is installed on the upper right side of the inner cavity of the treatment box 3. The sealing partition 7 is sleeved on the outside of one end of the liquid outlet pipe. A support frame 8 is fixedly installed on the back of the treatment box 3. The support frame 8 is wrapped around the outside of the storage box 9.

[0027] Adopting such Figure 1The technical solution shown allows the sealing partition 7 to seal the upper right side of the inner cavity of the treatment box 3, forming an independent sealed space on the right side to prevent exhaust gas from leaking out from elsewhere. In addition, the support frame 8 on the front of the treatment box 3 can support the bottom of the storage box 9 and ensure its stability after installation on the front.

[0028] Secondly, in the technical solution, limit frames 5 are fixedly installed on both the front and rear sides of the left end of the inner cavity of the treatment box 3, and the end of the particle filter plate 4 is vertically inserted into the inside of the limit frame 5; an isolation net 13 is embedded in the upper front of the treatment box 3, and guide rods are fixedly installed on both ends of the isolation net 13 and on the front of the treatment box 3, and a sealing pull plate 14 is slidably installed on the outside of the guide rods, and a sealing gasket that works with the isolation net 13 is also installed on the back of the sealing pull plate 14.

[0029] Its adoption is as follows Figure 1 The main function of the limiting frame 5 in the technical solution shown is to limit the end of the particle filter plate 4, so that it can be quickly installed inside the processing box 3. At the same time, the isolation net 13 on the back of the processing box 3 can be sealed by the sealing pull plate 14, and can also be removed from the surface to facilitate the processing and ventilation of the inside of the processing box 3.

[0030] Example 3:

[0031] This utility model is as follows Figures 1-5 As shown, two sets of spray pipes 11 are arranged inside the treatment box 3 and installed symmetrically in the longitudinal direction. The sealing partition 7 is sealed and installed below the spray pipes 11. The right side of the particle filter plate 4 is attached to the connection with the waste gas adsorption net 6. The adsorption structure inside the waste gas adsorption net 6 is arranged horizontally. The top cover of the treatment box 3 is a detachable design. In addition, the liquid outlet pipe is connected to the through part of the top cover by a sealing ring.

[0032] By adopting the above technical solution, the spray pipes 11 are symmetrically installed inside the treatment box 3 to achieve effective spraying over a large area. A catalyst is used to rapidly oxidize the hydrocarbons in the organic waste gas into carbon dioxide and water at a lower temperature, thereby achieving the purpose of purification. Adding a sealing ring at the connection between the liquid outlet pipe and the top cover can fill the connection gap and prevent exhaust gas leakage.

[0033] The working principle of this utility model is as follows: the exhaust gas inside the storage tower 1 is transported to the interior of the treatment tank 3 by the absorption pump. The exhaust gas first passes through the particle filter plate 4 and the waste gas adsorption net 6 in sequence to filter and treat the exhaust gas. At this time, the delivery pump 10 delivers the catalyst to the spray pipe 11 and sprays it out through the nozzle 12 to catalytically oxidize the treated exhaust gas again. This method uses the catalyst to rapidly oxidize the hydrocarbons in the organic waste gas into carbon dioxide and water at a low temperature, thereby achieving the purpose of purification and ensuring that the exhaust gas after discharge will not produce toxic substances.

[0034] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape and proportion of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of this utility model. The order or sequence of any process or method steps may be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structural equivalents but also equivalent structures. Without departing from the scope of this invention, other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments. Therefore, this invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0035] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the present invention as currently considered, or those features that are not relevant to implementing the present invention) may be omitted.

[0036] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the essence and scope of the technical solutions of this utility model.

Claims

1. A sub-sodium interlocked off-gas absorption tower comprising a storage tower (1), characterized in that: The right side of the storage tower (1) is communicated with a treatment box (3) through an absorption pump, the right side of the treatment box (3) is communicated with an absorption tower (2) through an absorption pump, the left side of the inner cavity of the treatment box (3) is vertically installed with a particle filter plate (4), the right side of the particle filter plate (4) is installed with a waste gas adsorption net (6), the back of the treatment box (3) is installed with a storage box (9), the top of the storage box (9) is communicated with a conveying pump (10), the liquid outlet pipe of the conveying pump (10) penetrates into the inside of the treatment box (3) and is communicated with a spraying pipe (11), and the bottom of the spraying pipe (11) is communicated with a spray head (12).

2. A sub sodium interlock tail gas absorption column as claimed in claim 1, wherein: The upper right side of the inner cavity of the treatment box (3) is sealingly installed with a sealing partition plate (7), the sealing partition plate (7) is sleeved outside one end of the liquid outlet pipe, the back of the treatment box (3) is fixedly installed with a support frame (8), and the support frame (8) is wrapped outside the storage box (9).

3. The sub-sodium interlock tail gas absorption tower according to claim 1, characterized in that: The front and rear sides of the left end of the inner cavity of the treatment box (3) are both fixedly installed with a limiting frame (5), and the end of the particle filter plate (4) is vertically inserted into the inside of the limiting frame (5).

4. The sub-sodium interlock tail gas absorption column of claim 1, wherein: The upper front of the treatment box (3) is embeddedly installed with an isolation net (13), both ends of the outside of the isolation net (13) are fixedly installed with guide rods on the front of the treatment box (3), a sealing pull plate (14) is slidingly installed outside the guide rods, and the back of the sealing pull plate (14) is further installed with a sealing gasket used in cooperation with the isolation net (13).

5. A sub sodium interlock tail gas absorption column as claimed in claim 2, wherein: The spraying pipe (11) is provided with two groups inside the treatment box (3) and is vertically symmetrically installed, and the sealing partition plate (7) is sealingly installed below the spraying pipe (11).

6. A sub sodium interlock tail gas absorption column as claimed in claim 1, wherein: The right side of the particle filter plate (4) is attached to the connection of the waste gas adsorption net (6), and the adsorption structures inside the waste gas adsorption net (6) are transversely arranged.

7. A sub sodium interlock tail gas absorption column as claimed in claim 1, wherein: The top cover of the top of the treatment box (3) is designed to be detachable, and the penetration part of the liquid outlet pipe and the top cover is connected through a sealing ring.