Desulfurization and denitrification equipment for industrial waste gas

Abstract

The utility model provides desulfurization and denitrification equipment for industrial waste gas, which belongs to the technical field of waste gas treatment and comprises a tank body, a gas inlet structure, a drying structure arranged at the bottom end of one side of the tank body and used for filtering dust in waste gas, an exhaust pipe arranged at the top end of the tank body and used for drying exhausted gas, and filler fixed at the top end of the drying structure, the filler is fixed in the tank body, and a demister is arranged at the top end of the filler. According to the utility model, waste gas entering the tank body is filtered through the filter cartridge, so that dust foreign matters fall off and are accumulated at the bottom of the shell, and the dust accumulated in the shell can be discharged by pulling out the partition plate to open the dust discharge port, so that the dust treatment function of the device is realized, and the dust is prevented from blocking components such as a nozzle and a pipeline of the device; the normal operation of the equipment is protected, the wastewater pollution is reduced, the pollutant content in the wastewater is reduced, and the functionality of the device is enhanced.

Description

Technical Field

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

[0002] After searching, the Chinese patent application number 2019 2175 5848.X discloses a desulfurization and denitrification equipment for industrial waste gas. In view of the problem that the existing desulfurization and denitrification equipment cannot filter the floating dust in the waste gas and the desulfurization efficiency is low, the following scheme is proposed, which includes a treatment box, a liquid storage box is welded on one side of the treatment box, and the liquid storage box contains alkaline reaction liquid. A feeding hole is opened on the top of the liquid storage box, and a sealing plug is installed in the feeding hole. The pump body is fixedly connected to the inner wall of the bottom of the liquid storage box by bolts, and a liquid outlet pipe is fixedly connected to the water outlet of the pump body. A plurality of nozzles are fixedly connected to the bottom of the liquid outlet pipe. A sealing plate is installed as a sliding seal in the liquid storage box, and a side plate is welded on one side of the sealing plate. A vertical plate is welded on one side of the side plate, and a telescopic motor is fixedly connected to one side of the liquid storage box by bolts. The utility model has good practicality, effectively filters floating dust in the waste gas, has high desulfurization efficiency, and is powerful in functionality;

[0003] The above patent still has the following deficiencies: (1) It has the defect that dust can easily enter the interior of the device. After the dust is dissolved in the reaction liquid, it will react to form a complex, which will inhibit the dissolution rate of sulfides and nitrogen oxides, reduce their reaction activity, and cause a "blind spot" in desulfurization. At the same time, when the circulation pump inhales dust and foreign matter, it will accelerate the wear of the circulation pump blades, affecting the service life of the device;

[0004] (2) The defect of being inconvenient to dry the air. Since the air discharged by the device usually has a certain acidity and alkalinity, and the humidity is relatively high, the metal of the device or other equipment is easily corroded by acid, alkali and water vapor, shortening the service life of the equipment.

[0005] Therefore, there is an urgent need for an industrial waste gas desulfurization and denitrification equipment to solve the above problems. Utility Model Content

[0006] The purpose of the utility model is to address the existing defect that dust can easily enter the interior of the device. After the dust is dissolved in the reaction liquid, it will react to form a complex, which will inhibit the dissolution rate of sulfides and nitrogen oxides and reduce their reaction activity, resulting in a "blind spot" in desulfurization. At the same time, when the circulating pump inhales dust and foreign matter, it will accelerate the wear of the circulating pump blades, affecting the service life of the device.

[0007] In order to achieve the above-mentioned invention object, the utility model provides the following technical solutions:

[0008] An industrial waste gas desulfurization and denitrification device, comprising:

[0009] Tank;

[0010] The air intake structure is arranged at the bottom of one side of the tank body to filter the dust in the exhaust gas;

[0011] The drying structure is arranged at the top of the tank to dry the exhaust gas;

[0012] An exhaust pipe, fixed to the top of the drying structure;

[0013] A motor is installed at the bottom end of the tank, and a stirring rod is connected to the top end of the motor;

[0014] The solenoid valve is fixed on one side of the bottom end of the tank and is used to discharge sewage;

[0015] A circulation pump is installed on one side of the tank body, and a water pipe is connected to the top of the circulation pump, a shunt pipe is connected to the top of the water pipe, and a spray pipe is fixed to one side of the shunt pipe;

[0016] The filler is fixed inside the tank body, and a demister is arranged on the top of the filler.

[0017] As a preferred technical solution of the present application, the air intake structure includes a shell fixed on one side of the tank body, a filter cartridge detachably mounted inside the inclined plate, a cover plate detachably mounted on the top of the shell, a placement plate fixed on the outside of the filter cartridge, an inclined plate fixed inside the shell, a partition detachably mounted inside the ash discharge port, and an ash discharge port opened at the bottom end of one side of the shell.

[0018] As a preferred technical solution of the present application, the drying structure includes a box body fixed on the top of the tank body, a placement rack sliding on the top of the slide groove, honeycomb activated carbon arranged inside the placement rack, slide grooves fixed on both sides of the box body, and a calcium chloride desiccant arranged on the top of the honeycomb activated carbon.

[0019] As a preferred technical solution of the present application, the stirring rod extends to the outside of the tank body and is connected to the motor.

[0020] As a preferred technical solution of the present application, the cover plate is installed on the top of the shell by bolts.

[0021] As a preferred technical solution of the present application, the calcium chloride desiccant is arranged in several groups inside the placement rack, and the several groups of calcium chloride desiccant are distributed at equal intervals inside the placement rack.

[0022] As a preferred technical solution of the present application, the filter cartridges are evenly spaced inside the inclined plate, and the shell and the tank body are welded into an integrated structure.

[0023] As a preferred technical solution of the present application, a sliding structure is formed between the box body and the slide groove, and the exhaust pipe is connected to the tank body through the box body.

[0024] Compared with the prior art, the utility model has the following beneficial effects:

[0025] In the scheme of this application:

[0026] The exhaust gas entering the tank is filtered by the filter cartridge, so that dust and foreign matter fall and accumulate at the bottom of the shell. The dust accumulated inside the shell can be discharged by pulling out the partition to open the dust discharge port, thereby realizing the dust treatment function of the device, preventing dust from blocking the nozzle, pipe and other parts of the device, protecting the normal operation of the equipment, reducing wastewater pollution, reducing the pollutant content in the wastewater, and enhancing the functionality of the device;

[0027] The acidic and alkaline substances remaining in the exhaust gas are adsorbed by honeycomb activated carbon, and then the calcium chloride desiccant adsorbs the moisture in the exhaust gas to reduce the water content of the exhaust gas, thereby realizing the drying function of the device, reducing the moisture in the air discharged by the device and neutralizing the acidic and alkaline substances in the air, protecting metal parts such as pipes, and extending the service life of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 A schematic diagram of the three-dimensional structure provided for this application;

[0029] Figure 2 A schematic diagram of a three-dimensional cross-sectional structure provided for this application;

[0030] Figure 3 A schematic diagram of the three-dimensional cross-sectional structure of the air intake structure provided in this application;

[0031] Figure 4 This is a schematic diagram of the three-dimensional cross-sectional structure of the drying structure provided in this application.

[0032] Indications in the figure: 1. Tank body; 2. Drying structure; 201. Box body; 202. Placement rack; 203. Honeycomb activated carbon; 204. Slide; 205. Calcium chloride desiccant; 3. Exhaust pipe; 4. Diverter pipe; 5. Water pipe; 6. Circulation pump; 7. Air intake structure; 701. Shell; 702. Filter cartridge; 703. Cover plate; 704. Placement sheet; 705. Inclined plate; 706. Partition; 707. Ash discharge port; 8. Filling; 9. Defogger; 10. Stirring rod; 11. Motor; 12. Solenoid valve; 13. Spray pipe. DETAILED DESCRIPTION

[0033] To make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be described clearly and completely in conjunction with the accompanying drawings. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments.

[0034] like Figure 1-4 As shown, the present embodiment proposes a device for desulfurization and denitrification of industrial waste gas, comprising:

[0035] Tank 1;

[0036] The air intake structure 7 is arranged at the bottom end of one side of the tank body 1 to filter the dust in the exhaust gas;

[0037] The drying structure 2 is arranged at the top of the tank body 1 to dry the exhaust gas;

[0038] An exhaust pipe 3 is fixed on the top of the drying structure 2;

[0039] The motor 11 is installed at the bottom end of the tank 1, and the top end of the motor 11 is connected to the stirring rod 10;

[0040] The solenoid valve 12 is fixed to one side of the bottom end of the tank 1 and is used to discharge sewage;

[0041] A circulation pump 6 is installed on one side of the tank body 1, and a water pipe 5 is connected to the top of the circulation pump 6, a shunt pipe 4 is connected to the top of the water pipe 5, and a spray pipe 13 is fixed to one side of the shunt pipe 4;

[0042] The filler 8 is fixed inside the tank body 1 , and a demister 9 is provided at the top of the filler 8 .

[0043] like Figure 1 , Figure 2 and Figure 3As shown, as a preferred embodiment, on the basis of the above method, further, the air intake structure 7 includes a shell 701 fixed on one side of the tank body 1, a filter cartridge 702 detachably mounted inside the inclined plate 705, a cover plate 703 detachably mounted on the top of the shell 701, a placement sheet 704 fixed on the outside of the filter cartridge 702, an inclined plate 705 fixed inside the shell 701, a partition plate 706 detachably mounted inside the ash discharge port 707, and a cover plate 703 of the ash discharge port 707 opened at the bottom end of one side of the shell 701 is mounted on the shell by bolts. At the top of 701, filter cartridges 702 are evenly spaced inside the inclined plate 705. The shell 701 and the tank body 1 are welded into an integrated structure. The industrial waste gas is introduced into the shell 701 through the holes on one side of the shell 701. The waste gas can pass through the inclined plate 705 through the filter cartridge 702 and enter the tank body 1. Dust and foreign matter accumulate on the outside of the filter cartridge 702 and fall down and accumulate at the bottom of the shell 701. When the device stops running, the dust accumulated in the shell 701 can be discharged by pulling out the partition 706 to open the ash discharge port 707.

[0044] like Figure 1 , Figure 2 and Figure 4 As shown, as a preferred embodiment, on the basis of the above-mentioned method, further, the drying structure 2 includes a box body 201 fixed on the top of the tank body 1, a placement rack 202 sliding on the top of the slide 204, a honeycomb activated carbon 203 arranged inside the placement rack 202, slides 204 fixed on both sides of the box body 201, and a calcium chloride desiccant 205 arranged on the top of the honeycomb activated carbon 203, and the calcium chloride desiccant 205 is arranged in a plurality of groups inside the placement rack 202, and a plurality of groups of calcium chloride desiccant 205 are arranged on the top of the placement rack 202. The interior is evenly spaced, and a sliding structure is formed between the box body 201 and the slide groove 204. The exhaust pipe 3 is connected to the tank body 1 through the box body 201. The acidic and alkaline substances remaining in the exhaust gas are adsorbed by the honeycomb activated carbon 203. Then the exhaust gas contacts the calcium chloride desiccant 205, so that the calcium chloride desiccant 205 absorbs the moisture in the exhaust gas, reduces the water content of the exhaust gas, and prevents subsequent pipeline corrosion. By opening the box cover on one side of the box body 201, the placement rack 202 can be pulled out to replace the calcium chloride desiccant 205 and the honeycomb activated carbon 203.

[0045] The stirring rod 10 extends to the outside of the tank body 1 and is connected to the motor 11 .

[0046] Specifically, when the industrial waste gas desulfurization and denitrification equipment is in use: the industrial waste gas is introduced into the interior of the device through the air intake structure 7, and at the same time, the air intake structure 7 processes the dust particles in the waste gas to prevent the dust particles from entering the interior of the device and contacting the reaction liquid; the reaction liquid in the tank body 1 is extracted by the circulating pump 6 and input into the inside of the diversion pipe 4 through the water pipe 5; then the diversion pipe 4 sprays the reaction liquid into the inside of the tank body 1, so that the sulfide and nitrogen oxides in the waste gas are in contact with the reaction liquid for purification treatment; the contact area between the purification liquid and the waste gas is increased by the filler 8, so that the waste gas and the reaction liquid are in full contact to ensure the purification effect; the reaction liquid is stirred by the stirring rod 10 to prevent the generation of crystal precipitation; the droplets entrained in the gas are separated by the demister 9; then the air of the drying structure 2 is dried to prevent the pipelines of subsequent equipment from being corroded.

[0047] Specifically, when the equipment for desulfurization and denitrification of industrial waste gas is in use: the industrial waste gas is introduced into the interior of the shell 701 through the holes on one side of the shell 701, the waste gas can pass through the filter cartridge 702, through the inclined plate 705 and enter the interior of the tank body 1, and dust and foreign matter accumulate on the outside of the filter cartridge 702, and fall downward and accumulate at the bottom of the shell 701. When the device stops running, the dust accumulated in the shell 701 can be discharged by pulling out the partition 706 to open the ash discharge port 707.

[0048] Specifically, when the equipment for desulfurization and denitrification of industrial waste gas is in use: the treated waste gas is introduced into the interior of the box body 201 by the tank body 1, and the acidic and alkaline substances remaining in the waste gas are adsorbed by the honeycomb activated carbon 203, and then the waste gas contacts the calcium chloride desiccant 205, so that the calcium chloride desiccant 205 adsorbs the moisture in the waste gas, reduces the water content of the waste gas, and prevents subsequent pipeline corrosion. By opening the box cover on one side of the box body 201, the placement rack 202 can be pulled out to replace the calcium chloride desiccant 205 and the honeycomb activated carbon 203.

[0049] The above embodiments are only used to illustrate the present invention and are not intended to limit the technical solutions described in the present invention. Although the present invention has been described in detail with reference to the above embodiments, the present invention is not limited to the above specific implementation methods. Therefore, any modification or equivalent replacement of the present invention; and all technical solutions and improvements thereof that do not depart from the spirit and scope of the invention are included in the scope of the claims of the present invention.

Claims

1. A device for desulfurization and denitrification of industrial waste gas, characterized in that: include; Tank (1); An air intake structure (7) is arranged at the bottom end of one side of the tank body (1) to filter dust in the exhaust gas; A drying structure (2) is arranged at the top of the tank body (1) to dry the exhaust gas; An exhaust pipe (3) is fixed on the top of the drying structure (2); A motor (11) is mounted at the bottom end of the tank body (1), and a stirring rod (10) is connected to the top end of the motor (11); A solenoid valve (12) is fixed to one side of the bottom end of the tank (1) and is used to discharge sewage; A circulation pump (6) is installed on one side of the tank body (1), and the top of the circulation pump (6) is connected to a water pipe (5), the top of the water pipe (5) is connected to a diversion pipe (4), and a spray pipe (13) is fixed to one side of the diversion pipe (4); The filler (8) is fixed inside the tank body (1), and a demister (9) is provided at the top end of the filler (8).

2. The equipment for desulfurization and denitrification of industrial waste gas according to claim 1, characterized in that: The air intake structure (7) comprises a shell (701) fixed to one side of the tank body (1), a filter cartridge (702) detachably mounted inside an inclined plate (705), a cover plate (703) detachably mounted on the top of the shell (701), a placement sheet (704) fixed to the outside of the filter cartridge (702), an inclined plate (705) fixed inside the shell (701), a partition plate (706) detachably mounted inside an ash discharge port (707), and an ash discharge port (707) opened at the bottom end of one side of the shell (701).

3. The equipment for desulfurization and denitrification of industrial waste gas according to claim 1, characterized in that: The drying structure (2) comprises a box body (201) fixed on the top of the tank body (1), a placement rack (202) sliding on the top of a slide groove (204), honeycomb activated carbon (203) arranged inside the placement rack (202), slide grooves (204) fixed on both sides inside the box body (201), and a calcium chloride desiccant (205) arranged on the top of the honeycomb activated carbon (203).

4. The equipment for desulfurization and denitrification of industrial waste gas according to claim 1, characterized in that: The stirring rod (10) extends to the outside of the tank body (1) and is connected to the motor (11).

5. The equipment for desulfurization and denitrification of industrial waste gas according to claim 2, characterized in that: The cover plate (703) is mounted on the top of the housing (701) by means of bolts.

6. The equipment for desulfurization and denitrification of industrial waste gas according to claim 2, characterized in that: The filter cartridges (702) are distributed at equal intervals inside the inclined plate (705), and the shell (701) and the tank body (1) are welded into an integrated structure.

7. The equipment for desulfurization and denitrification of industrial waste gas according to claim 3, characterized in that: The calcium chloride desiccant (205) is arranged in a plurality of groups inside the placement rack (202), and the plurality of groups of calcium chloride desiccant (205) are distributed at equal intervals inside the placement rack (202).

8. The equipment for desulfurization and denitrification of industrial waste gas according to claim 3, characterized in that: A sliding structure is formed between the box body (201) and the slide groove (204), and the exhaust pipe (3) is connected to the tank body (1) through the box body (201).

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