Tail gas treatment device of absorption tower for producing water purifying agent

Abstract

The utility model relates to the technical field of water purifying agent production equipment, and discloses a tail gas treatment device of an absorption tower for producing a water purifying agent, which comprises a fixing mechanism, the chemical gas treatment mechanism is arranged in the fixing mechanism; the physical gas treatment mechanism is arranged at one end of the fixing mechanism; and the active air exhaust mechanism is arranged at the other end of the fixing mechanism. The continuous multi-gas treatment structure design is adopted, namely, the head end of the continuous multi-gas treatment device is provided with an activated carbon adsorption mechanism which can adsorb volatile organic compounds in tail gas, the middle end of the continuous multi-gas treatment device is provided with an acid pickling box body which absorbs ammonia gas by using an acid solution to form ammonia salt so as to facilitate treatment and recovery, and the tail end of the continuous multi-gas treatment device is provided with a carbon dioxide absorption box body which can absorb carbon dioxide in the tail gas. Liquid such as sodium hydroxide or ammonia water is used for absorbing carbon dioxide to generate sodium carbonate or sodium bicarbonate, and volatile organic compounds, ammonia gas and carbon dioxide in the tail gas can be subjected to stage treatment.

Description

Technical Field

[0001] The utility model relates to the technical field of water purifying agent production equipment, in particular to an exhaust gas treatment device for an absorption tower used in the production of water purifying agents. Background Technique

[0002] During the conventional production process of water purifying agents, exhaust gas will be generated, which may contain volatile organic compounds, ammonia, and carbon dioxide. Usually, the exhaust gas needs to be treated by technologies such as absorption, condensation, or catalytic oxidation to meet the emission standards. The specific treatment method depends on the composition and concentration of the exhaust gas, and an absorption tower is required to treat the exhaust gas used in the production of water purifying agents.

[0003] The existing exhaust gas treatment devices for absorption towers used in water purifying agent production still have the following problems when in use: Most of them use physical methods for treatment, mainly adsorption method, using activated carbon to physically adsorb the exhaust gas to remove organic substances in the exhaust gas. However, this method is only applicable to the treatment of low-concentration organic gases and cannot effectively treat ammonia and carbon dioxide in the exhaust gas. At the same time, it lacks an active exhaust gas guiding mechanism, and the actual exhaust gas treatment relies on passive exhaust gas input, resulting in slow circulation of the exhaust gas in the exhaust gas treatment device. Content of the Utility Model

[0004] (I) Technical Problems to be Solved

[0005] In view of the deficiencies of the prior art, the utility model provides an exhaust gas treatment device for an absorption tower used in the production of water purifying agents, which solves the problems raised in the background technique.

[0006] (II) Technical Solutions

[0007] To achieve the above object, the utility model provides the following technical solutions: An exhaust gas treatment device for an absorption tower used in the production of water purifying agents, including a fixing mechanism; a chemical gas treatment mechanism arranged inside the fixing mechanism; a physical gas treatment mechanism arranged at one end of the fixing mechanism; an active air extraction mechanism arranged at the other end of the fixing mechanism. The fixing mechanism includes a fixing frame, and two installation slots are symmetrically arranged between the upper and lower side walls of the fixing frame. The chemical gas treatment mechanism includes a box body fixedly installed in the installation slot, and the physical gas treatment mechanism includes a filter box fixedly connected to one end of the fixing frame.

[0008] As a further scheme of the utility model: A sealing cover is slidably and fittingly installed at the top opening of the box body. Two pipe slots are symmetrically arranged between the upper and lower side walls of the sealing cover. Two handles are symmetrically fixedly connected to the top of the sealing cover. A gas inlet pipe is fixedly installed in the pipe slot at one end of the sealing cover, and a gas outlet pipe is fixedly installed in the pipe slot at the other end of the sealing cover.

[0009] As a further solution of the present utility model: the front end of the filter box is open, and an activated carbon block is slidably and fittingly installed in the filter box. An air guide hole is opened at each of the upper and lower ends of the inner side wall of the filter box. An air inlet joint is fixedly installed at the lower air guide hole. A gas transmission pipe is connected between the upper air guide hole and one end of the gas inlet pipe. A sealing plate is fixedly connected to the front end of the activated carbon block. The sealing plate closes the front opening of the filter box, and a handle is fixedly connected to the middle of the front end of the sealing plate.

[0010] As a further solution of the present utility model: a mounting seat is fixedly connected to the middle of each of the front and rear ends of the fixed frame. The active air extraction mechanism includes a mounting frame fixedly connected to the other end of the fixed frame. An active air pump is fixedly installed at the other end of the mounting frame. A gas transmission pipe is connected between the upper air inlet of the active air pump and the other end of the gas discharge pipe. An exhaust pipe is fixedly installed at the lower exhaust port of the active air pump. A gas transmission pipe is connected between one end of the gas discharge pipe and the other end of the gas inlet pipe.

[0011] As a further solution of the present utility model: a discharge port is opened on the inner bottom wall of the box body, and a discharge valve is fixedly installed on the outer bottom wall of the box body at the opening of the discharge port.

[0012] Compared with the prior art, the beneficial effects of the present utility model are:

[0013] 1. In the present utility model, through the adoption of a coherent multi-gas treatment structure design, that is, the first end is an activated carbon adsorption mechanism, which can adsorb and treat volatile organic compounds in the tail gas. The middle end is an acid-washing box body, which uses an acidic solution to absorb ammonia to form ammonium salts, facilitating treatment and recovery. The tail end is a carbon dioxide absorption box body, which uses liquids such as sodium hydroxide or ammonia water to absorb carbon dioxide to generate sodium carbonate or sodium bicarbonate, and can perform hierarchical treatment on volatile organic compounds, ammonia, and carbon dioxide in the tail gas.

[0014] 2. In the present utility model, through the provision of an active tail gas guiding mechanism, that is, the other end of the fixed frame is fixedly connected to a mounting frame, and an active air pump is fixedly installed on the mounting frame, which can actively extract tail gas from the tail end of the tail gas treatment device. In addition to relying on the passive tail gas input at the input end for the tail gas treatment of the overall tail gas device, the tail end can actively extract tail gas for the circulation in the tail gas treatment device, accelerating its circulation rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is the overall three-dimensional view of the present utility model;

[0016] Figure 2 is the three-dimensional view of the gas treatment box of the present utility model;

[0017] Figure 33D view of the gas transmission structure of the present utility model;

[0018] Figure 4 Exploded 3D view of the physical gas treatment mechanism components of the present utility model.

[0019] In the figure: 1, fixing mechanism; 2, chemical gas treatment mechanism; 3, physical gas treatment mechanism; 4, active air extraction mechanism; 11, fixing frame; 12, mounting seat; 13, mounting groove; 21, box body; 22, discharge port; 23, discharge valve; 24, sealing cover; 25, handle; 26, pipe groove; 27, gas inlet pipe; 28, gas outlet pipe; 29, gas transmission pipe; 31, filter box; 32, air guide hole; 33, activated carbon block; 34, sealing plate; 35, handle; 36, air inlet joint; 41, mounting frame; 42, active air pump; 43, exhaust pipe. Detailed implementation manners

[0020] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0021] Please refer to Figures 1 to 4 , in the embodiment of the present utility model, a tail gas treatment device for an absorption tower used in the production of water purifying agent includes a fixing mechanism 1; a chemical gas treatment mechanism 2, disposed within the fixing mechanism 1; a physical gas treatment mechanism 3, disposed at one end of the fixing mechanism 1; an active air extraction mechanism 4, disposed at the other end of the fixing mechanism 1. The fixing mechanism 1 includes a fixing frame 11, and two mounting grooves 13 are symmetrically formed between the upper and lower side walls of the fixing frame 11. The chemical gas treatment mechanism 2 includes a box body 21 fixedly installed in the mounting groove 13. The physical gas treatment mechanism 3 includes a filter box 31 fixedly connected to one end of the fixing frame 11. The whole adopts a coherent multi-gas treatment structure design, that is, its head end is an activated carbon adsorption mechanism, which can adsorb volatile organic compounds in the tail gas. The middle end is a pickling box body 21, that is, one end box body 21, which can contain acidic solution therein, and use the acidic solution to absorb ammonia gas to form ammonium salts, which is convenient for treatment and recovery. The tail end is a carbon dioxide absorption box body 21, which can contain liquids such as sodium hydroxide or ammonia water therein, and use the liquids such as sodium hydroxide or ammonia water to absorb carbon dioxide to generate sodium carbonate or sodium bicarbonate, and can perform hierarchical treatment on volatile organic compounds, ammonia gas and carbon dioxide in the tail gas.

[0022] A sealing cover 24 is slidably and fittingly installed at the top opening of the box body 21. Two pipe grooves 26 are symmetrically formed between the upper and lower side walls of the sealing cover 24. Two handles 25 are symmetrically and fixedly connected to the top of the sealing cover 24, and the sealing cover 24 can be lifted and removed. A gas inlet pipe 27 is fixedly installed in the pipe groove 26 at one end of the sealing cover 24, which can introduce the tail gas into the liquid contained in the box body 21. A gas outlet pipe 28 is fixedly installed in the pipe groove 26 at the other end of the sealing cover 24, which can discharge the tail gas after passing through the liquid.

[0023] The front end of the filter box 31 is open, and an activated carbon block 33 is slidably and fittingly installed in the filter box 31. One air guide hole 32 is formed at each of the upper and lower ends of the inner side wall of the filter box 31. An air inlet joint 36 is fixedly installed at the lower air guide hole 32, which can be connected to the tail gas transmission pipeline for the production of water purification agent. A gas transmission pipe 29 is connected between the upper air guide hole 32 and one gas inlet pipe 27. A sealing plate 34 is fixedly connected to the front end of the activated carbon block 33. The sealing plate 34 closes the front opening of the filter box 31, and a handle 35 is fixedly connected to the middle of the front end of the sealing plate 34. The handle 35 can be held to drive the sealing plate 34 to remove the activated carbon block 33 for cleaning.

[0024] At the middle of the front and rear ends of the fixing frame 11, an installation seat 12 is fixedly connected to each. The overall device can be arranged at the corresponding position of the absorption tower through the installation seat 12 and the installation components. The active air extraction mechanism 4 includes an installation frame 41 fixedly connected to the other end of the fixing frame 11. An active air pump 42 is fixedly installed at the other end of the installation frame 41. A gas transmission pipe 29 is connected between the upper air inlet of the active air pump 42 and the other gas outlet pipe 28. An exhaust pipe 43 is fixedly installed at the lower exhaust port of the active air pump 42. A gas transmission pipe 29 is connected between one gas outlet pipe 28 and the other gas inlet pipe 27. It is provided with an active tail gas guiding mechanism, that is, an installation frame 41 is fixedly connected to the other end of the fixing frame 11, and an active air pump 42 is fixedly installed on the installation frame 41. It can actively extract the tail gas from the tail end of the tail gas treatment device. In addition to relying on the passive input of the tail gas at the input end for the tail gas treatment of the overall tail gas device, its tail end can actively extract the tail gas for the circulation in the tail gas treatment device, accelerating its circulation rate.

[0025] A discharge port 22 is formed on the inner bottom wall of the box body 21. A discharge valve 23 is fixedly installed on the outer bottom wall of the box body 21 and at the opening of the discharge port 22, and the discharge valve 23 can be opened to discharge the waste liquid in the box body 21.

[0026] The working principle of the present utility model is as follows: The overall device can be arranged at the corresponding position of the absorption tower through the cooperation of the mounting base 12 and the mounting component. The air inlet joint 36 can be connected to the tail gas conveying pipeline of the production of the water purification agent. It is provided with an active tail gas guiding mechanism, that is, the other end of the fixing frame 11 is fixedly connected to the mounting frame 41, and an active air pump 42 is fixedly installed on the mounting frame 41, which can actively extract the tail gas from the tail end of the tail gas treatment device. The tail gas treatment of the overall tail gas device not only relies on the passive tail gas input at the input end, but also can actively extract the tail gas at its tail end for the circulation in the tail gas treatment device, accelerating its circulation rate. The overall adopts a coherent multi-gas treatment structure design, that is, its head end is an activated carbon adsorption mechanism, which can adsorb and treat the volatile organic compounds in the tail gas. The middle end is an acid washing box body 21, that is, one end box body 21, which can contain an acidic solution therein to absorb ammonia gas with the acidic solution to form ammonium salts, facilitating treatment and recovery. The tail end is a carbon dioxide absorption box body 21, which can contain liquids such as sodium hydroxide or ammonia water therein to absorb carbon dioxide with the sodium hydroxide or ammonia water and other liquids to generate sodium carbonate or sodium bicarbonate, and can perform hierarchical treatment on the volatile organic compounds, ammonia gas and carbon dioxide in the tail gas.

[0027] The above is only the preferred specific implementation mode of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution of the present utility model and its inventive concept, makes equivalent substitutions or changes, and should be covered by the protection scope of the present utility model.

Claims

1. A tail gas treatment device for an absorption tower for producing water purifiers, comprising a fixing mechanism (1); a chemical gas treatment mechanism (2) arranged in the fixing mechanism (1); a physical gas treatment mechanism (3) arranged at one end of the fixing mechanism (1); and an active gas extraction mechanism (4) arranged at the other end of the fixing mechanism (1); Features: The fixing mechanism (1) comprises a fixing frame (11), two mounting grooves (13) are symmetrically provided between upper and lower side walls of the fixing frame (11), the chemical gas treatment mechanism (2) comprises a box body (21) fixedly installed in the mounting groove (13), and the physical gas treatment mechanism (3) comprises a filter box (31) fixedly connected to one end of the fixing frame (11); A sealing cover (24) is slidably mounted at the top opening of the box body (21), two pipe grooves (26) are symmetrically arranged between the upper and lower side walls of the sealing cover (24), and two handles (25) are symmetrically fixedly connected to the top of the sealing cover (24); A gas introduction pipe (27) is fixedly installed in the pipe groove (26) at one end of the sealing cover (24), and a gas discharge pipe (28) is fixedly installed in the pipe groove (26) at the other end of the sealing cover (24); The front end of the filter box (31) is open, and an activated carbon block (33) is slidably mounted in the filter box (31).

2. The tail gas treatment device of the absorption tower for water purification agent production according to claim 1, characterized in that: An air guide hole (32) is respectively formed at the upper and lower ends of the inner wall of the filter box (31).

3. The tail gas treatment device of the absorption tower for water purification agent production according to claim 2, characterized in that: An air inlet joint (36) is fixedly installed at the lower air guide hole (32), and a gas transmission pipe (29) is connected between the upper air guide hole (32) and one end of the gas introduction pipe (27).

4. The tail gas treatment device of the absorption tower for water purification agent production according to claim 1, characterized in that: The front end of the activated carbon block (33) is fixedly connected to a sealing plate (34), the sealing plate (34) closes the front end opening of the filter box (31), and a handle (35) is fixedly connected to the middle of the front end of the sealing plate (34).

5. The tail gas treatment device of the absorption tower for water purification agent production according to claim 1, characterized in that: A mounting seat (12) is fixedly connected to each of the middle portions of the front and rear ends of the fixing frame (11), and the active air extraction mechanism (4) comprises a mounting frame (41) fixedly connected to the other end of the fixing frame (11), and an active air pump (42) is fixedly mounted on the other end of the mounting frame (41).

6. The tail gas treatment device of the absorption tower for water purification agent production according to claim 5, characterized in that: A gas transmission pipe (29) is connected between the gas inlet at the upper end of the active air pump (42) and the gas exhaust pipe (28) at the other end, and an exhaust pipe (43) is fixedly installed at the exhaust port at the lower end of the active air pump (42).

7. The tail gas treatment device of the absorption tower for water purification agent production according to claim 1, characterized in that: A gas transmission pipe (29) is connected between the gas discharge pipe (28) at one end and the gas introduction pipe (27) at the other end.

8. The tail gas treatment device of the absorption tower for water purification agent production according to claim 1, characterized in that: The inner bottom wall of the box body (21) is provided with a discharge port (22), and the outer bottom wall of the box body (21) is fixedly provided with a discharge valve (23) at the opening of the discharge port (22).

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