Environment-friendly tail gas filtering treatment device for carbide slag cement rotary kiln

Abstract

The utility model discloses a carbide slag cement rotary kiln tail gas environment-friendly filtering treatment device which comprises an installation plate, a support is fixedly installed at the top of the installation plate, two hoops are fixedly installed at the top of the support, the inner sides of the two hoops are movably sleeved with inclined pipes, one ends of the inclined pipes are communicated with an installation pipe, and threaded plates are fixedly installed in the inclined pipes. The other end of the inclined pipe is communicated with a branch pipe, a plurality of hooks are fixedly installed in the branch pipe, a metal ring net is movably hung on the inner sides of the hooks, the top end of the branch pipe is communicated with a filter box, the top of the filter box is communicated with an exhaust pipe, and a top cover is fixedly installed at the top of the exhaust pipe. And through the arranged hooks and the metal ring net, when the device is cleaned and maintained, all structures can be disassembled through flange plates, the metal ring net is taken down from the hooks, dust and smoke dust are cleaned, cleaning and maintenance are convenient, the overall structure is stable, and the using effect is good.

Description

Technical Field

[0001] The utility model belongs to the technical field of carbide slag rotary kiln waste gas treatment, and specifically relates to an environmentally friendly filtering treatment device for carbide slag cement rotary kiln tail gas. Background Art

[0002] Calcium carbide slag is the waste slag with calcium hydroxide as the main component after acetylene gas is obtained by hydrolysis of calcium carbide. Acetylene (C2H2) is one of the important raw materials for the basic organic synthesis industry. The process of producing acetylene with calcium carbide (CaC2) as the raw material and adding water (wet method) is simple and mature, and accounts for a large proportion in my country. 1 ton of calcium carbide plus water can generate more than 300 kg of acetylene gas, and at the same time generate 10 tons of industrial waste liquid with a solid content of about 12%, commonly known as calcium carbide slag slurry. Calcium carbide slag can be used to replace limestone to make cement, produce quicklime as calcium carbide raw material, produce chemical products, produce building materials, and be used for environmental governance.

[0003] During the operation of the carbide slag rotary kiln, a certain amount of waste gas will be generated due to the firing effect. Traditional waste gas treatment is generally just a simple filtration and removal, which has the problem of difficulty in cleaning smoke and dust and low filtration efficiency, thus affecting the environmental protection of waste gas emissions. Based on this, we propose an environmentally friendly filtration treatment device for tail gas from a carbide slag cement rotary kiln. Summary of the invention

[0004] In view of the shortcomings of the prior art, the purpose of the utility model is to provide an environmentally friendly filtration and treatment device for tail gas from a carbide slag cement rotary kiln, which solves the problem that traditional exhaust gas treatment is generally just simple filtration and removal, which makes smoke and dust cleaning difficult and has low filtration efficiency, thus affecting the environmental friendliness of exhaust gas emissions.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an environmentally friendly filtering and processing device for tail gas from a carbide slag cement rotary kiln, comprising a mounting plate, a bracket fixedly mounted on the top of the mounting plate, two clamps fixedly mounted on the top of the bracket, one end of an inclined tube movably sleeved on the inner side of the two clamps is connected to a mounting tube, a threaded plate is fixedly mounted on the inside of the inclined tube, the other end of the inclined tube is connected to a branch tube, a plurality of hooks are fixedly mounted on the inside of the branch tube, a metal ring net is movably suspended on the inner side of the hook, the top of the branch tube is connected to a filter box, and the top of the filter box is connected to An exhaust pipe, a top cover is fixedly installed on the top of the exhaust pipe, a sealed box door is movably installed on the front of the filter box, an observation window is installed inside the sealed box door, one side of the filter box is connected to a water inlet pipe, and the other side of the filter box is connected to a drain pipe, a metal mesh plate is fixedly installed inside the filter box, a plurality of guide pipes are fixedly installed on the bottom of the metal mesh plate, a PP filter cotton plate is movably installed on the top of the metal mesh plate, a plurality of magnetic buckles are movably installed on the top of the PP filter cotton plate, a plurality of support blocks are fixedly installed inside the filter box, and a plurality of filter plate groups are movably installed on the top of the support blocks.

[0006] Preferably, flange plates are provided at both ends of the mounting pipe, and the mounting pipe, the branch pipe and the inclined pipe are fixedly mounted via the flange plates.

[0007] By adopting the above technical solution, the advantages are that dust and smoke can be cleaned, the cleaning is convenient, maintenance is convenient, the overall structure is stable, and the use effect is good.

[0008] Preferably, the bottom end of the filter box is fixedly mounted on the top of the branch pipe by bolts and a flange plate, and the top end of the branch pipe is extended and connected to the interior of the filter box through a sealing structure and a pipeline.

[0009] By adopting the above technical solution, the advantage is that when water is stored inside the filter box, the air flow will not be affected, and the overall use effect is good.

[0010] Preferably, the water inlet pipe and the drain pipe are evenly distributed diagonally on the outside of the filter box, the water inlet pipe is connected to the top of the PP filter cotton board, and the drain pipe is connected to the bottom of the filter box.

[0011] The adoption of the above technical solution has the advantage of being convenient for stable structure use and water flow diversion.

[0012] Preferably, the guide pipes are linearly and evenly arranged at the bottom of the metal mesh plate, and the two ends of the metal mesh plate are inclined to correspond to the water inlet pipe and the drain pipe, and throttling one-way valves are provided inside the water inlet pipe and the drain pipe.

[0013] By adopting the above technical solution, the advantage is that the installation of the one-way throttle valve can determine the direction of the liquid flow, avoid gas overflow, and facilitate the operation.

[0014] Preferably, the magnetic buckles are evenly distributed on the top of the PP filter cotton plate in a rectangular array.

[0015] The above technical solution has the advantage of preventing the PP filter cotton plate from shifting after being soaked, thereby stabilizing the use position.

[0016] Preferably, the filter plate group includes a quartz sand filter plate, a sponge filter plate and an activated carbon filter plate.

[0017] By adopting the above technical solution, the advantage lies in that the filtering of the gas by the overall structure is increased, which is convenient for increasing the processing of the gas flow and has a good overall use effect.

[0018] Compared with the prior art, the beneficial effects of the utility model are:

[0019] 1. Through the installation pipe, when in use, first install the device on the exhaust gas discharge end of the rotary kiln through the installation pipe, and then fix the structure at the use position through the bracket, and connect the water inlet pipe and the drain pipe to the circulation device of the neutralization treatment liquid. When the exhaust gas enters the inclined tube through the installation pipe, the spiral action of the threaded plate makes the airflow evenly mixed and has a certain rotation characteristic. Then the large particles of smoke and dust in the airflow will be attached through the fine metal ring net, which is convenient for intercepting larger smoke and dust particles. Then the airflow enters the filter box. At this time, the exhaust gas particles come into contact with the PP filter cotton board. Since the PP filter cotton board is wetted with liquid, the liquid trickles slowly through the PP filter cotton board, so that the fine particles of smoke and dust and other debris are neutralized and attached in the liquid flow, which is convenient for further filtration. The liquid flow is discharged through the drain pipe with impurities for easy treatment. Then the airflow is filtered by the filter plate group and discharged, which increases environmental protection.

[0020] 2. Through the provided hooks and metal ring nets, when the device is cleaned and maintained, each structure can be dismantled through the flange plate, and the metal ring net can be removed from the hook to clean the dust and smoke, making cleaning and maintenance convenient, the overall structure is stable, and the use effect is good. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the front three-dimensional appearance structure of the utility model;

[0022] Figure 2 This is a schematic diagram of the rear-view stereoscopic appearance structure of the utility model;

[0023] Figure 3 It is a front cross-sectional structural schematic diagram of the utility model;

[0024] Figure 4 For the utility model Figure 3 Enlarged structural diagram at A in the middle.

[0025] In the figure: 1. Mounting plate; 2. Bracket; 3. Clamp; 4. Branch pipe; 5. Drain pipe; 6. Filter box; 7. Exhaust pipe; 8. Top cover; 9. Water inlet pipe; 10. Observation window; 11. Sealed box door; 12. Oblique pipe; 13. Mounting pipe; 14. Threaded plate; 15. Metal ring net; 16. Hook; 17. PP filter cotton board; 18. Support block; 19. Filter plate group; 20. Magnetic buckle; 21. Guide pipe; 22. Metal mesh plate. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the implementation scheme of the utility model to clearly and completely describe the technical scheme in the implementation scheme of the utility model. Obviously, the described implementation scheme is only a part of the implementation scheme of the utility model, not all the implementation schemes. Based on the implementation scheme in the utility model, all other implementation schemes obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0027] like Figure 1-Figure 4 As shown, an environmentally friendly filtering and treating device for tail gas of carbide slag cement rotary kiln comprises a mounting plate 1, a bracket 2 is fixedly mounted on the top of the mounting plate 1, two clamps 3 are fixedly mounted on the top of the bracket 2, one end of the inner side of the two clamps 3 is movably sleeved with an inclined tube 12 and is connected to a mounting tube 13, a threaded plate 14 is fixedly mounted inside the inclined tube 12, the other end of the inclined tube 12 is connected to a branch tube 4, a plurality of hooks 16 are fixedly mounted inside the branch tube 4, a metal ring net 15 is movably suspended inside the hook 16, the top of the branch tube 4 is connected to a filter box 6, the top of the filter box 6 is connected to an exhaust pipe 7, the top of the exhaust pipe 7 A top cover 8 is fixedly installed, a sealed box door 11 is movably installed on the front of the filter box 6, an observation window 10 is installed inside the sealed box door 11, one side of the filter box 6 is connected to a water inlet pipe 9, and the other side of the filter box 6 is connected to a drain pipe 5, a metal mesh plate 22 is fixedly installed inside the filter box 6, a plurality of guide pipes 21 are fixedly installed at the bottom of the metal mesh plate 22, a PP filter cotton plate 17 is movably installed on the top of the metal mesh plate 22, a plurality of magnetic buckles 20 are movably installed on the top of the PP filter cotton plate 17, a plurality of support blocks 18 are fixedly installed inside the filter box 6, and a plurality of filter plate groups 19 are movably installed on the top of the support blocks 18.

[0028] The working principle of the above technical solution is as follows:

[0029] When in use, first install the device at the exhaust gas discharge end of the rotary kiln through the installation pipe 13, and then fix the structure at the use position through the bracket 2, and connect the water inlet pipe 9 and the drain pipe 5 to the circulation device of the neutralization treatment liquid. When the exhaust gas enters the inclined tube 12 through the installation pipe 13, the spiral action of the threaded plate 14 makes the airflow mixed evenly and has a certain rotation characteristic. Then the large particles of smoke in the airflow will be attached through the fine metal ring net 15, which is convenient for intercepting larger smoke particles. Then the airflow enters the filter box 6. At this time, the exhaust gas particles come into contact with the PP filter cotton board 17. Since the PP filter cotton board 17 is wetted with liquid, the liquid trickles slowly through the PP filter cotton board 17, so that the fine particles of smoke and other debris are neutralized and attached in the liquid flow, which is convenient for further filtration. The liquid flow is discharged through the drain pipe 5 with impurities for easy treatment, and then the airflow is filtered by the filter plate group 19 and discharged, which increases environmental protection.

[0030] In another embodiment, Figure 1-Figure 3 As shown, flange plates are provided at both ends of the installation pipe 13, and the installation pipe 13, the branch pipe 4 and the inclined pipe 12 are fixedly installed through the flange plates.

[0031] By setting the hook 16 and the metal ring net 15, when the device is cleaned and maintained, the various structures can be dismantled through the flange plate, and the metal ring net 15 can be removed from the hook 16 to clean the dust and smoke, making cleaning and maintenance convenient, the overall structure is stable, and the use effect is good.

[0032] In another embodiment, Figure 3 As shown, the bottom end of the filter box 6 is fixedly mounted on the top of the branch pipe 4 by bolts and a flange plate, and the top end of the branch pipe 4 is connected to the interior of the filter box 6 through a sealing structure and a pipeline extension.

[0033] It is convenient to introduce the airflow into the filter box 6, and the branch pipe 4 goes deep into the filter box 6, so that the airflow passing operation is not affected when water is stored in the filter box 6, and the overall use effect is good.

[0034] In another embodiment, Figure 1-Figure 3 As shown, the water inlet pipe 9 and the drainage pipe 5 are evenly distributed diagonally on the outside of the filter box 6, the water inlet pipe 9 is connected to the top of the PP filter cotton board 17, and the drainage pipe 5 is connected to the bottom of the filter box 6.

[0035] The water inlet pipe 9 introduces the liquid flow into the top of the PP filter cotton plate 17 and leads it out through the drain pipe 5, which is convenient for stable structure use and water flow diversion.

[0036] In another embodiment, Figure 3As shown, the guide pipes 21 are linearly and evenly arranged at the bottom of the metal mesh plate 22. The two ends of the metal mesh plate 22 are inclined to correspond to the water inlet pipe 9 and the drainage pipe 5. Throttling one-way valves are provided inside the water inlet pipe 9 and the drainage pipe 5.

[0037] The guide pipe 21 can assist in guiding the liquid flow when it is low, avoiding large-scale dripping and facilitating use, while the installation of a one-way throttle valve can determine the direction of the liquid flow, avoiding gas overflow and facilitating the operation.

[0038] In another embodiment, Figure 3 As shown, the magnetic buckles 20 are evenly distributed on the top of the PP filter cotton plate 17 in a rectangular array.

[0039] The magnetic buckle 20 can fix the corresponding position of the PP filter cotton plate 17, prevent the PP filter cotton plate 17 from shifting after being soaked, and stabilize the use position.

[0040] In another embodiment, Figure 3 As shown, the filter plate group 19 includes a quartz sand filter plate, a sponge filter plate and an activated carbon filter plate.

[0041] The quartz sand filter plate, sponge filter plate and activated carbon filter plate filter in sequence increase the filtering of the gas by the overall structure, facilitate the increase of gas flow processing, and the overall use effect is good.

[0042] The working principle and use process of the utility model are as follows: when in use, firstly, the device is installed at the exhaust gas discharge end of the rotary kiln through the installation pipe 13, and then the structure is fixed at the use position through the bracket 2, and the water inlet pipe 9 and the drain pipe 5 are connected to the circulation device of the neutralization treatment liquid. When the exhaust gas enters the inclined tube 12 through the installation pipe 13, the spiral action of the threaded plate 14 makes the airflow evenly mixed and has a certain rotation characteristic, and then the large particles of smoke in the airflow will be attached through the fine metal ring net 15, which is convenient for intercepting larger smoke particles, and then the airflow enters the filter box 6. At this time, the exhaust gas particles pass through the connection with the PP filter cotton plate 17. Since the PP filter cotton plate 17 is wetted with liquid, the liquid trickles slowly through the PP filter cotton plate 17, so that the fine particles of smoke and other debris are neutralized and attached in the liquid flow, which is convenient for further filtration. The liquid flow is discharged through the drain pipe 5 with the impurities for easy treatment, and then the air flow is filtered through the filter plate group 19 and then discharged, which increases the environmental protection. Through the set hooks 16 and metal ring nets 15, when the device is cleaned and maintained, the various structures can be disassembled through the flange plate, and the metal ring net 15 can be removed from the hooks 16 to clean the dust and smoke, which makes cleaning convenient and maintenance convenient, the overall structure is stable, and the use effect is good.

[0043] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A carbide slag cement rotary kiln tail gas environmental filtering treatment device, comprising a mounting plate (1), characterized in that: A bracket (2) is fixedly mounted on the top of the mounting plate (1), two clamps (3) are fixedly mounted on the top of the bracket (2), one end of an inclined tube (12) movably sleeved on the inner side of the two clamps (3) is connected to a mounting tube (13), a threaded plate (14) is fixedly mounted inside the inclined tube (12), the other end of the inclined tube (12) is connected to a branch tube (4), a plurality of hooks (16) are fixedly mounted inside the branch tube (4), a metal ring net (15) is movably suspended on the inner side of the hook (16), the top end of the branch tube (4) is connected to a filter box (6), the top of the filter box (6) is connected to an exhaust pipe (7), a top cover (8) is fixedly mounted on the top of the exhaust pipe (7), the filter box (6) ) is movably mounted on the front of the filter box (6), an observation window (10) is mounted inside the sealed box door (11), one side of the filter box (6) is connected to a water inlet pipe (9), and the other side of the filter box (6) is connected to a drain pipe (5), a metal mesh plate (22) is fixedly mounted inside the filter box (6), a plurality of flow guide pipes (21) are fixedly mounted on the bottom of the metal mesh plate (22), a PP filter cotton plate (17) is movably mounted on the top of the metal mesh plate (22), a plurality of magnetic buckles (20) are movably mounted on the top of the PP filter cotton plate (17), a plurality of support blocks (18) are fixedly mounted inside the filter box (6), and a plurality of filter plate groups (19) are movably mounted on the top of the support blocks (18).

2. The environmental protection filtering and processing device for tail gas of carbide slag cement rotary kiln according to claim 1 is characterized in that: Both ends of the mounting pipe (13) are provided with flange plates, and the mounting pipe (13) and the branch pipe (4) are fixedly mounted with the inclined pipe (12) via the flange plates.

3. The environmental protection filtering treatment device for tail gas from carbide slag cement rotary kiln according to claim 1 is characterized by: The bottom end of the filter box (6) is fixedly mounted on the top of the branch pipe (4) via bolts and a flange plate, and the top end of the branch pipe (4) is extended and connected to the interior of the filter box (6) via a sealing structure and a pipeline.

4. The environmental protection filtering treatment device for tail gas from carbide slag cement rotary kiln according to claim 1 is characterized by: The water inlet pipe (9) and the drainage pipe (5) are evenly distributed diagonally on the outside of the filter box (6); the water inlet pipe (9) is connected to the top of the PP filter cotton plate (17), and the drainage pipe (5) is connected to the bottom of the filter box (6).

5. The environmental protection filtering and treating device for tail gas of carbide slag cement rotary kiln according to claim 1 is characterized in that: The flow guide pipes (21) are linearly and evenly arranged at the bottom of the metal mesh plate (22); the two ends of the metal mesh plate (22) are inclined to correspond to the water inlet pipe (9) and the drainage pipe (5); and throttling one-way valves are provided inside the water inlet pipe (9) and the drainage pipe (5).

6. The environmental protection filtering treatment device for tail gas from carbide slag cement rotary kiln according to claim 1 is characterized by: The magnetic buckles (20) are evenly distributed on the top of the PP filter cotton plate (17) in a rectangular array.

7. The environmental protection filtering and treating device for tail gas of carbide slag cement rotary kiln according to claim 1 is characterized by: The filter plate group (19) comprises a quartz sand filter plate, a sponge filter plate and an activated carbon filter plate.

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