Electrolytic manganese air purification device

Abstract

The utility model discloses an electrolytic manganese air purification device, and relates to the technical field of air purification, the electrolytic manganese air purification device comprises a spray tower, the top of the spray tower is provided with a discharge pipe, and a spray filter assembly is arranged in the spray tower. The spraying disc sprays the waste gas, and the sprayed alkaline absorption liquid is in reverse contact with the acid mist; acidic components in the acid mist and the alkaline absorption liquid are subjected to neutralization reaction to generate salt and water, so that the salt and the water are removed; sprayed gas is mixed with acid mist and water molecules, the gas can touch a water drop trapping sheet when rising, the water molecules can be attached to the lower surface of the water drop trapping sheet under blocking of the water drop trapping sheet at the moment, waste gas penetrates through an activated carbon filter, and molecules in the acid mist can be adsorbed in pores of activated carbon; secondary filtration is realized, and the purification effect of waste gas is improved.

Description

Technical Field

[0001] The utility model specifically relates to the technical field of air purification, in particular to an electrolytic manganese air purification device. Background Art

[0002] Acidic substances such as sulfuric acid are often used in the leaching and purification processes of electrolytic manganese. These acidic solutions emit acid mist during operation. Acid mist is not only corrosive, damaging production equipment and factory buildings, but also irritating the human respiratory tract and skin, posing a health risk to operators. For example, when leaching manganese ore with sulfuric acid, the sulfuric acid on the surface of the solution evaporates, forming sulfuric acid mist.

[0003] When treating electrolytic manganese waste gas, some traditional spray towers usually use a simple spraying method to remove acid from the gas. However, this simple spraying method has the problem of incomplete spraying, resulting in the escape of gas containing acid mist; or when the air pressure inside the spray tower increases, the gas will carry some water molecules and be discharged outside the tower; therefore, it will also have an impact on the environment. Utility Model Content

[0004] The purpose of the utility model is to provide an electrolytic manganese air purification device that can spray exhaust gas over a large area. The treated gas will collide with a water droplet capture sheet. At this time, the water molecules in the gas will remain on the water droplet capture sheet, and the gas will pass through the activated carbon filter and be filtered again, thereby effectively preventing the escape of water molecules and exhaust gas and increasing the gas purification effect; so as to solve the technical problems raised in the above-mentioned background technology.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] An electrolytic manganese air purification device includes a spray tower having a discharge pipe at the top, a spray filter assembly disposed within the spray tower, and a gas collecting hood fixed to the inner wall of the spray tower; a plurality of through holes are formed in a circular array on the top of the gas collecting hood to facilitate gas passage; a reflow hole is formed in the middle of the top of the gas collecting hood, and a reflow hood is welded to the reflow hole; an exhaust pipe is welded to the top of the reflow hood, and through holes are formed around the lower end of the exhaust pipe;

[0007] The outside of the exhaust pipe is sleeved with an activated carbon filter, and the outside of the activated carbon filter is sleeved with a water droplet collecting sheet.

[0008] As a further technical solution of the present invention, a plurality of water droplet collecting sheets are provided, and the longitudinal cross-section of the water droplet collecting sheets is conical.

[0009] As a further technical solution of the present invention, a top cover is buckled on the top of the exhaust pipe; the outer diameter of the top cover fits on the inner wall of the spray tower.

[0010] As a further technical solution of the present invention, a straight tube is welded below the reflux hole, and a circular spray plate is installed at the bottom of the straight tube. A spray hole is provided at the bottom of the spray plate to facilitate spraying the gas; one side of the straight tube is connected to the spray pipe.

[0011] As a further technical solution of the present invention, the other end of the spray pipe is connected to the water outlet of the spray pump; the water inlet of the spray pump is connected to the liquid storage tank through a pipeline.

[0012] As a further technical solution of the present invention, the spray tower is arranged above the liquid storage tank, and a mounting platform is fixed on the outside of the spray tower; a ladder is also installed on the mounting platform.

[0013] As a further technical solution of the present invention, the lower end of the spray tower is connected to the air outlet end of the axial flow fan through a pipeline, and the air inlet end of the axial flow fan is connected to the pulse dust collector through an exhaust pipe.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] 1. In this utility model, when the gas enters the spray tower, the spray disk will spray the exhaust gas, and the sprayed alkaline absorption liquid will come into reverse contact with the acid mist; the acidic components in the acid mist will react with the alkaline absorption liquid to generate salt and water, which will be removed;

[0016] 2. In this utility model, if the sprayed gas contains acid mist and water molecules, the gas will hit the water droplet capture sheet as it rises. The water molecules at this time are blocked by the water droplet capture sheet and adhere to the lower surface of the water droplet capture sheet, causing the exhaust gas to penetrate the activated carbon filter. Activated carbon has a highly developed pore structure, and these pores provide a large specific surface area. When the acid mist passes through the activated carbon, the molecules in the acid mist can be adsorbed within the pores of the activated carbon.

[0017] 3. In the present invention, a plurality of water droplet collecting sheets increase the interception effect of water molecules in the exhaust gas. The cone-shaped arrangement is to enable the water molecules attached to the surface of the water droplet collecting sheets to flow downward according to their own gravity; when the water molecules gather in the reflux cover, they will pass through the through holes opened around the lower end of the exhaust pipe into the straight pipe, so that they can flow back to the liquid storage tank for recycling and energy saving. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional structural diagram of the utility model.

[0019] Figure 2 This utility model Figure 1 Schematic diagram of the rear structure.

[0020] Figure 3 This utility model Figure 1 main view.

[0021] Figure 4 This utility model Figure 3 AA cross-sectional view.

[0022] Figure 5 This utility model Figure 4 A partial enlarged schematic diagram.

[0023] In the figure: 1- pulse dust collector, 2- exhaust pipe, 3- axial flow fan, 4- spray tower, 5- liquid storage tank, 6- spray pump, 7- spray pipe, 8- installation platform, 9- ladder, 10- spray plate, 11- gas collection hood, 12- backflow hood, 13- water droplet collection sheet, 14- activated carbon filter, 15- exhaust pipe, 16- top cover. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] See also Figure 1-5 In an embodiment of the utility model, an electrolytic manganese air purification device includes a spray tower 4, the top of which is provided with a discharge pipe, and a spray filter assembly is provided inside the spray tower 4, the spray filter assembly including an air collecting hood 11 fixed on the inner wall of the spray tower 4; a plurality of through holes are provided in a circular array on the top of the air collecting hood 11 to facilitate the passage of gas; and a reflux hole is provided in the middle position of the top of the air collecting hood 11, and a reflux cover 12 is welded on the reflux hole; an activated carbon filter 14 is sleeved on the outside of the exhaust pipe 15, and a water droplet capture sheet 13 is sleeved on the outside of the activated carbon filter 14.

[0026] To be more specific, a straight tube is welded below the reflux hole, and a circular spray plate 10 is installed at the bottom of the straight tube. A spray hole is provided at the bottom of the spray plate 10 for spraying gas; one side of the straight tube is connected to the spray pipe 7.

[0027] By adopting the above technical solution, when the gas enters the interior of the spray tower 4, the spray disk 10 will spray the exhaust gas, and the sprayed alkaline absorption liquid will come into reverse contact with the acid mist; the acidic components in the acid mist (such as sulfuric acid in the sulfuric acid mist) will react with the alkaline absorption liquid to neutralize and generate salt and water, which will be removed.

[0028] The spraying area of ​​the spray plate 10 is large, and can realize spraying and acid removal in a large range, thereby reducing the occurrence of acid mist gas escape as much as possible.

[0029] If the sprayed gas contains acid mist and water molecules, the rising gas will hit the water droplet trapping sheet 13. The water molecules, blocked by the water droplet trapping sheet 13, will adhere to the lower surface of the sheet 13, causing the exhaust gas to pass through the activated carbon filter 14. Activated carbon has a highly developed pore structure, which provides a large specific surface area. When the acid mist passes through the activated carbon, the molecules in the acid mist can be adsorbed within the pores of the activated carbon.

[0030] After two purifications, the clean gas can be discharged directly.

[0031] Specifically, an exhaust pipe 15 is welded to the top of the reflux cover 12, and through holes are opened around the lower end of the exhaust pipe 15. A plurality of water droplet collecting sheets 13 are provided, and the longitudinal section of the water droplet collecting sheets 13 is tapered.

[0032] By adopting the above technical solution, the plurality of water droplet collecting sheets 13 increase the interception effect of water molecules in the exhaust gas. The cone shape is set so that the water molecules attached to the surface of the water droplet collecting sheet 13 can flow downward according to their own gravity.

[0033] When the water molecules gather in the reflux cover 12 , they will pass through the through holes formed around the lower end of the exhaust pipe 15 and enter the straight pipe, thereby being able to flow back into the liquid storage tank 5 .

[0034] In this embodiment, a top cover 16 is buckled onto the top of the exhaust pipe 15 ; the outer diameter of the top cover 16 fits onto the inner wall of the spray tower 4 .

[0035] By adopting the above technical solution, the top cover 16 and the exhaust pipe 15 are installed by snap-fitting. Firstly, it is to prevent the gas from being directly discharged or escaping during the gas filtration process; secondly, it is to facilitate the replacement of the activated carbon filter 14.

[0036] In this embodiment, the other end of the spray pipe 7 is connected to the water outlet of the spray pump 6; the water inlet of the spray pump 6 is connected to the liquid storage tank 5 through a pipeline.

[0037] In this embodiment, the spray tower 4 is arranged above the liquid storage tank 5, and a mounting platform 8 is fixed on the outside of the spray tower 4; a ladder 9 is also installed on the mounting platform 8.

[0038] The provision of the installation platform 8 and the ladder 9 facilitates the maintenance and repair of the spray tower 4 .

[0039] In this embodiment, the lower end of the spray tower 4 is connected to the air outlet end of the axial flow fan 3 through a pipeline, and the air inlet end of the axial flow fan 3 is connected to the pulse dust collector 1 through the exhaust pipe 2.

[0040] By adopting the above technical solution, when in use, the exhaust gas generated during electrolysis is transported to the pulse dust collector 1 for dust removal first, and then the exhaust gas is transported to the spray tower 4 through the axial flow fan 3 for spray treatment; the setting of the axial flow fan 3 can quickly promote the transmission of gas and improve the purification efficiency of the exhaust gas.

[0041] The working principle of the present invention is as follows: when in use, the exhaust gas generated during electrolysis is transported to the pulse dust collector 1 for dust removal first, and then the exhaust gas is transported to the spray tower 4 through the axial flow fan 3 for spray treatment; when the gas enters the interior of the spray tower 4, the spray disk 10 will spray the exhaust gas, and the sprayed alkaline absorption liquid will contact the acid mist in reverse; the acidic components in the acid mist (such as sulfuric acid in the sulfuric acid mist) will react with the alkaline absorption liquid to neutralize and generate salt and water, which will be removed.

[0042] The spraying area of ​​the spray plate 10 is large, and can realize spraying and acid removal in a large range, thereby reducing the occurrence of acid mist gas escape as much as possible.

[0043] If the sprayed gas contains acid mist and water molecules, the rising gas will hit the water droplet trapping sheet 13. The water molecules, blocked by the water droplet trapping sheet 13, will adhere to its lower surface, causing the exhaust gas to pass through the activated carbon filter 14. Activated carbon has a highly developed pore structure, providing a large specific surface area. When the acid mist passes through the activated carbon, the molecules in the mist are adsorbed within the pores. After two purification steps, the clean gas can be directly discharged.

[0044] The plurality of water droplet collecting sheets 13 increase the interception effect of water molecules in the exhaust gas. The cone-shaped arrangement is to allow the water molecules attached to the surface of the water droplet collecting sheet 13 to flow downward according to their own gravity.

[0045] When the water molecules gather in the reflux cover 12 , they will pass through the through holes formed around the lower end of the exhaust pipe 15 and enter the straight pipe, thereby being able to flow back into the liquid storage tank 5 .

[0046] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0047] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. An electrolytic manganese air purification device, characterized in that: The invention comprises a spray tower (4), wherein the top of the spray tower (4) is provided with a discharge pipe, and a spray filter assembly is provided inside the spray tower (4), and the spray filter assembly comprises a gas collecting hood (11) fixed on the inner wall of the spray tower (4); a plurality of through holes are provided in a circular array on the top of the gas collecting hood (11) for facilitating the passage of gas; a reflow hole is provided in the middle position of the top of the gas collecting hood (11), and a reflow hood (12) is welded on the reflow hole; an exhaust pipe (15) is welded on the top of the reflow hood (12), and through holes are provided around the lower end of the exhaust pipe (15); The outside of the exhaust pipe (15) is sleeved with an activated carbon filter (14), and the outside of the activated carbon filter (14) is sleeved with a water droplet collecting sheet (13).

2. The electrolytic manganese air purification device according to claim 1, characterized in that: There are a plurality of water droplet collecting sheets (13), and the longitudinal sections of the water droplet collecting sheets (13) are arranged in a conical shape.

3. The electrolytic manganese air purification device according to claim 2, characterized in that: The top of the exhaust pipe (15) is buckled with a top cover (16); the outer diameter of the top cover (16) fits on the inner wall of the spray tower (4).

4. The electrolytic manganese air purification device according to claim 3, characterized in that: A straight pipe is welded below the reflux hole, and a circular spray plate (10) is installed at the bottom of the straight pipe. Spray holes for spraying gas are opened at the bottom of the spray plate (10); one side of the straight pipe is connected to the spray pipe (7).

5. The electrolytic manganese air purification device according to claim 4, characterized in that: The other end of the spray pipe (7) is connected to the water outlet of the spray pump (6); the water inlet of the spray pump (6) is connected to the liquid storage tank (5) through a pipeline.

6. The electrolytic manganese air purification device according to claim 1, characterized in that: The spray tower (4) is arranged above the liquid storage tank (5), and a mounting platform (8) is fixed on the outside of the spray tower (4); a ladder (9) is also mounted on the mounting platform (8).

7. The electrolytic manganese air purification device according to claim 1, characterized in that: The lower end of the spray tower (4) is connected to the air outlet end of the axial flow fan (3) through a pipeline, and the air inlet end of the axial flow fan (3) is connected to the pulse dust collector (1) through an exhaust pipe (2).

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