Industrial waste gas desulfurization and denitrification equipment

Abstract

The utility model discloses industrial waste gas desulfurization and denitrification equipment which comprises a protection box and further comprises an absorption barrel, the absorption barrel is arranged at the bottom of the protection box, a reaction barrel is arranged in the protection box, mounting plates are arranged on the two sides of the absorption barrel, and the absorption barrel and the reaction barrel are arranged in the protection box. A gas inlet pipe and a gas outlet pipe are arranged on the two mounting plates respectively, one end of the gas outlet pipe penetrates into the reaction cylinder, a fixing rod is arranged on the mounting plates, a sleeve is rotatably arranged outside the fixing rod, a filter screen plate is arranged outside the sleeve, the gas inlet pipe introduces waste gas into the absorption cylinder, and the waste gas pushes an impeller to rotate; the sleeve drives the multiple scrapers to rotate, the scrapers scrape solid impurities in the filter plate, waste gas enters the reaction cylinder along the gas outlet pipe, nitrides in the waste gas react with reaction liquid, heating water is introduced from the liquid inlet pipe, and the heating water flows along the heating pipe and heats the reaction liquid, so that the reaction speed is increased.

Description

Technical Field

[0001] The utility model relates to the field of waste gas treatment equipment, in particular to industrial waste gas desulfurization and denitrification equipment. Background Art

[0002] Industrial waste gas refers to the general term for various pollutant gases discharged into the air during the combustion of fuel and production processes within the factory area of ​​an enterprise. These waste gases contain carbon dioxide, carbon disulfide, hydrogen sulfide, smoke and industrial dust. When discharged into the atmosphere, they will pollute the air and endanger human health. Desulfurization and denitrification are important steps in the treatment of industrial waste gas. The substances in the waste gas are recycled and reused to increase the utilization rate of the waste gas.

[0003] During the absorption treatment of existing desulfurization and denitrification, the exhaust gas needs to be passed into alkaline substances (such as limestone, calcium oxide, sodium hydroxide) and dilute nitric acid to separate sulfur dioxide and nitrates. The existing denitrification equipment has poor absorption and filtration effects. The solid particles produced by the reaction can easily clog the filter, resulting in reduced filtration efficiency. It is impossible to speed up the treatment of the exhaust gas and cannot meet the usage requirements. Utility Model Content

[0004] The purpose of the utility model is to provide an industrial waste gas desulfurization and denitrification device to solve the problems raised by the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] An industrial waste gas desulfurization and denitrification device, comprising a protection box and:

[0007] An absorption cylinder, an absorption cylinder is arranged at the bottom of the protection box, a reaction cylinder is arranged inside the protection box, mounting plates are arranged on both sides of the absorption cylinder, an air inlet pipe and an air outlet pipe are arranged on the two mounting plates respectively, one end of the air outlet pipe penetrates into the reaction cylinder, a fixing rod is arranged on the mounting plate, a sleeve is rotatably arranged outside the fixing rod, a filter plate is arranged outside the sleeve, a scraper is arranged inside the filter plate, a plurality of scrapers are fixedly arranged on the sleeve, and an impeller is arranged outside the sleeve;

[0008] A heating tube, wherein a plurality of rotating plates are arranged inside the reaction tube, a support plate is arranged outside the reaction tube, a liquid inlet pipe and a liquid outlet pipe are arranged on the support plate, a heating tube is arranged between the liquid inlet pipe and the liquid outlet pipe, and the heating tube is a spiral structure and is arranged inside the reaction tube;

[0009] The transmission mechanism is arranged inside the reaction tube and stirs the reaction liquid by driving a plurality of rotating plates to rotate.

[0010] On the basis of the above technical solutions, the present invention also provides the following optional technical solutions:

[0011] In an optional solution: the transmission mechanism includes a driving gear, a driven gear and a rotating rod, a rotating rod is arranged at the center of the reaction tube, a plurality of rotating plates are arranged outside the rotating rod, the bottom end of the rotating rod penetrates into the absorption tube and is provided with a driven gear, and a driving gear meshing with the driven gear is arranged outside the sleeve.

[0012] In an optional solution: both ends of the fixing rod pass through the mounting plate and are provided with handles, a slot is provided on the absorption cylinder, and a fixing column matching the slot is provided on the mounting plate.

[0013] In an optional solution: a support block is provided on the inner wall of the protection box, a connection block is provided on the outer wall of the reaction cylinder, a screw is provided at the bottom of the connection block, and one end of the screw passes through the support block and is provided with a nut.

[0014] In an optional solution: a protective plate is provided on the top of the protective box, a sampling box is provided on the protective plate, and the air outlet pipe is connected to the interior of the sampling box.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0016] The industrial waste gas desulfurization and denitrification equipment absorbs the waste gas through the liquid in the absorption tube and the reaction tube. The air inlet pipe passes the waste gas into the absorption tube. The waste gas drives the impeller to rotate, and the sleeve drives multiple scrapers to rotate. The scrapers scrape off the solid impurities inside the filter plate to prevent impurities from clogging the mesh holes and ensure the gas circulation speed. The waste gas enters the reaction tube along the air outlet pipe, and the nitrate in the waste gas reacts with the reaction liquid. Heating water is introduced from the liquid inlet pipe, and the heating water flows along the heating pipe and heats the reaction liquid to speed up the reaction. The reaction liquid and industrial waste gas are mixed more fully, ensuring the normal use of industrial waste gas desulfurization and denitrification. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a structural schematic diagram of industrial waste gas desulfurization and denitrification equipment.

[0018] Figure 2 This is a cross-sectional view of industrial waste gas desulfurization and denitrification equipment.

[0019] Figure 3 This is a schematic diagram of the structure of the support plate in the industrial waste gas desulfurization and denitrification equipment.

[0020] Notes on figure numbers: 1-protection box, 2-absorption cylinder, 201-card slot, 3-reaction cylinder, 4-protection plate, 5-sampling box, 6-air outlet pipe, 7-mounting plate, 8-air inlet pipe, 9-handle, 10-fixed rod, 11-fixed column, 12-heating tube, 13-connecting block, 14-support block, 15-screw, 16-rotating rod, 17-sleeve, 18-driven gear, 19-driving gear, 20-filter plate, 21-scraper, 22-impeller, 23-rotating plate, 24-liquid inlet pipe, 25-support plate, 26-liquid outlet pipe. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model is further described in detail in conjunction with the accompanying drawings and embodiments below; in the drawings or descriptions, similar or identical parts use the same reference numerals, and in actual applications, the shape, thickness or height of each component can be enlarged or reduced. The various embodiments listed in the utility model are only used to illustrate the utility model, and are not used to limit the scope of the utility model. Any obvious modifications or changes made to the utility model do not depart from the spirit and scope of the utility model.

[0022] In one embodiment, Figure 1-3 As shown, an industrial waste gas desulfurization and denitrification device includes a protection box 1 and also includes:

[0023] An absorption tube 2, an absorption tube 2 is horizontally arranged at the bottom of the protection box 1, a reaction tube 3 is arranged inside the protection box 1, mounting plates 7 are arranged on both sides of the absorption tube 2, an alkaline solution for absorbing sulfur dioxide in the exhaust gas, such as lime water or sodium hydroxide, is arranged inside the absorption tube 2, an air inlet pipe 8 and an air outlet pipe 6 are respectively arranged on the two mounting plates 7, one end of the air outlet pipe 6 penetrates into the reaction tube 3, dilute nitric acid is put into the reaction tube 3 to separate the nitrate in the exhaust gas, a fixing rod 10 is arranged on the mounting plate 7, a sleeve 17 is rotatably arranged outside the fixing rod 10, a filter plate 20 is arranged outside the sleeve 17 to separate the solid matter produced by the reaction, a scraper 21 is arranged inside the filter plate 20, a plurality of scrapers 21 are fixedly arranged on the sleeve 17, and an impeller 22 is arranged outside the sleeve 17;

[0024] A heating tube 12, a plurality of rotating plates 23 are arranged inside the reaction tube 3, a support plate 25 is arranged outside the reaction tube 3, a liquid inlet pipe 24 and a liquid outlet pipe 26 are arranged on the support plate 25, the liquid inlet pipe 24 is connected to the heating water, a heating tube 12 is arranged between the liquid inlet pipe 24 and the liquid outlet pipe 26, the heating water flows along the heating tube 12 and heats the reaction liquid, speeding up the separation speed of the nitrate, the heating tube 12 is a spiral structure and is arranged inside the reaction tube 3, increasing the heating area of ​​the reaction liquid;

[0025] The transmission mechanism is arranged inside the reaction tube 3 and stirs the reaction liquid by driving the plurality of rotating plates 23 to rotate.

[0026] The industrial waste gas desulfurization and denitrification equipment passes the waste gas into the absorption tube 2 through the air inlet pipe 8, and the liquid in the absorption tube 2 absorbs sulfur dioxide. The waste gas drives the impeller 22 to rotate, and the impeller 22 drives the sleeve 17 to rotate. The sleeve 17 drives multiple scrapers 21 to rotate. The scrapers 21 scrape off the solid impurities inside the filter plate 20 to prevent the impurities from clogging the mesh. The waste gas enters the reaction tube 3 along the outlet pipe 6, and the nitrate in the waste gas reacts with the liquid to achieve the denitrification treatment of the waste gas. In the denitrification process of the waste gas, heating water is introduced from the liquid inlet pipe 24, and the heating water flows along the heating pipe 12 and heats the reaction liquid, thereby increasing the solubility of the nitrate in the liquid and accelerating the reaction speed. As an embodiment, the left, right, up, and down positions of the various components given in the accompanying drawings are only an arrangement method, and the specific positions are set according to specific needs.

[0027] In one embodiment, Figure 1-2 As shown, the transmission mechanism includes a driving gear 19, a driven gear 18 and a rotating rod 16. The rotating rod 16 is rotatably provided at the center of the reaction tube 3. A plurality of rotating plates 23 are provided on the outside of the rotating rod 16. The bottom end of the rotating rod 16 penetrates into the absorption tube 2 and is provided with a driven gear 18. The outside of the sleeve 17 is provided with a driving gear 19 meshing with the driven gear 18. The sleeve 17 drives the rotating rod 16 to rotate through the meshing of the gear set, and the rotating rod 16 drives the plurality of rotating plates 23 to rotate, so as to stir the reaction liquid.

[0028] In one embodiment, Figure 1-2 As shown, both ends of the fixing rod 10 pass through the mounting plate 7 and are provided with handles 9, a slot 201 is provided on the absorption cylinder 2, and a fixing column 11 matching the slot 201 is provided on the mounting plate 7. The mounting plate 7 rotates and drives the fixing column 11 to slide out of the slot 201, so that the mounting plate 7 can be removed from the absorption cylinder 2.

[0029] In one embodiment, Figure 1-2 As shown, a support block 14 is provided on the inner wall of the protective box 1, a connecting block 13 is provided on the outer wall of the reaction tube 3, a screw rod 15 is provided on the bottom of the connecting block 13, one end of the screw rod 15 passes through the support block 14 and is provided with a nut, and the connecting block 13 is connected to the support block 14 through the screw rod 15, so as to facilitate the fixed support of the entire reaction tube 3.

[0030] In one embodiment, Figure 1As shown, a protective plate 4 is provided on the top of the protective box 1, a sampling box 5 is provided on the protective plate 4, and the gas outlet pipe 6 is connected with the inside of the sampling box 5, and the desulfurized gas is sampled and tested through the sampling box 5.

[0031] The above-mentioned embodiment of the utility model provides an industrial waste gas desulfurization and denitrification equipment, which introduces the industrial waste gas to be treated into the absorption tube 2 through the air inlet pipe 8, and the liquid in the absorption tube 2 absorbs sulfur dioxide. The waste gas will drive the impeller 22 to rotate at the same time, and the impeller 22 drives the sleeve 17 and the rotating rod 16 to rotate, and the sleeve 17 drives multiple scrapers 21 to rotate, and the scrapers 21 scrape off the solid impurities attached to the outside of the filter plate 20 to prevent the impurities from clogging the mesh. The waste gas enters the reaction tube 3 along the air outlet pipe 6, and the nitrate in the waste gas reacts with the liquid. The rotating plate 23 stirs the reaction liquid, and heating water is introduced from the liquid inlet pipe 24. The heating water flows along the heating tube 12 and heats the reaction liquid, thereby accelerating the denitrification treatment speed of the waste gas.

[0032] The above is only a specific implementation of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any person skilled in the art who is familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present disclosure, which should be included in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be based on the protection scope of the claims.

Claims

1. An industrial waste gas desulfurization and denitrification device, comprising a protection box, characterized in that: Also includes: An absorption cylinder, an absorption cylinder is arranged at the bottom of the protection box, a reaction cylinder is arranged inside the protection box, mounting plates are arranged on both sides of the absorption cylinder, an air inlet pipe and an air outlet pipe are arranged on the two mounting plates respectively, one end of the air outlet pipe penetrates into the reaction cylinder, a fixing rod is arranged on the mounting plate, a sleeve is rotatably arranged outside the fixing rod, a filter plate is arranged outside the sleeve, a scraper is arranged inside the filter plate, a plurality of scrapers are fixedly arranged on the sleeve, and an impeller is arranged outside the sleeve; A heating tube, wherein a plurality of rotating plates are arranged inside the reaction tube, a support plate is arranged outside the reaction tube, a liquid inlet pipe and a liquid outlet pipe are arranged on the support plate, a heating tube is arranged between the liquid inlet pipe and the liquid outlet pipe, and the heating tube is a spiral structure and is arranged inside the reaction tube; The transmission mechanism is arranged inside the reaction tube and stirs the reaction liquid by driving a plurality of rotating plates to rotate.

2. The industrial waste gas desulfurization and denitrification equipment according to claim 1, characterized in that: The transmission mechanism includes a driving gear, a driven gear and a rotating rod. The rotating rod is arranged at the center of the reaction tube, and a plurality of rotating plates are arranged outside the rotating rod. The bottom end of the rotating rod penetrates into the absorption tube and is provided with a driven gear. The outside of the sleeve is provided with a driving gear meshing with the driven gear.

3. The industrial waste gas desulfurization and denitrification equipment according to claim 2, characterized in that: Both ends of the fixing rod pass through the mounting plate and are provided with handles, a clamping groove is provided on the absorption cylinder, and a fixing column matched with the clamping groove is provided on the mounting plate.

4. The industrial waste gas desulfurization and denitrification equipment according to claim 1, characterized in that: The inner wall of the protection box is provided with a support block, the outer wall of the reaction cylinder is provided with a connection block, the bottom of the connection block is provided with a screw rod, one end of the screw rod passes through the support block and is provided with a nut.

5. The industrial waste gas desulfurization and denitrification equipment according to claim 1, characterized in that: A protective plate is arranged on the top of the protective box, a sampling box is arranged on the protective plate, and the air outlet pipe is connected with the inside of the sampling box.

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