Closed calcium carbide furnace tail gas mud net filtering mechanism

Abstract

The utility model provides a sealed calcium carbide furnace tail gas mud net filtering mechanism, and relates to the field of calcium carbide furnace tail gas treatment, the sealed calcium carbide furnace tail gas mud net filtering mechanism comprises a bottom plate, a box body is fixed on the top of the bottom plate, a filtering main body is arranged in the box body, two mounting pipes are arranged in the box body at equal intervals, and the surfaces of the two mounting pipes are fixedly communicated with high-pressure spray heads at equal intervals; a conveying mechanism is arranged on the bottom plate, and an air inlet pipe and an air outlet pipe are installed on the surface of the box body in a communicating mode. By arranging the mounting pipe, the high-pressure spray head and the conveying mechanism, the two sides of the filter screen are both muddy water areas, only water in the middle of the filter screen is clean, the conveying mechanism is started, the clean water can be pumped into the mounting pipe, and the side, where muddy water is scraped, of the filter screen is flushed from the high-pressure spray head; the mud blocking the meshes of the filter screen can be flushed out, and the filter screen on one side from which the muddy water is scraped can be flushed all the time in cooperation with the continuous work of the filter main body.

Description

Technical Field

[0001] The utility model relates to the field of calcium carbide furnace tail gas treatment, in particular to a closed calcium carbide furnace tail gas mud net filtering mechanism. Background Art

[0002] There are more than 400 calcium carbide furnaces in China's calcium carbide industry, and the number is increasing every year. The annual output ranks first in the world, but the purification of calcium carbide furnace exhaust gas to meet emission standards has always been a major problem. Calcium carbide furnaces will produce a large amount of exhaust gas in the process of producing calcium carbide. Due to the special nature of the dust in the exhaust gas of the calcium carbide furnace and the fine dust particles, if the exhaust gas of the calcium carbide furnace is not treated, it will cause pollution to the environment. Therefore, the calcium carbide industry basically uses mud mesh filtration to purify the exhaust gas.

[0003] During the mud net filtration process, the filter needs to repeatedly dip into the mud and water and have the mud and water scraped off. When scraping the mud and water on the filter, the mud and water will clog the filter holes of the filter, which will affect the subsequent filtering effect of the filter on the exhaust gas. During the long-term treatment of the waste exhaust gas, the treatment efficiency will become lower and lower. If the machine is shut down for manual cleaning, the calcium carbide furnace will also need to be shut down, which is very inconvenient to clean. Therefore, we proposed a closed calcium carbide furnace exhaust mud net filtration mechanism to solve the above problems. Utility Model Content

[0004] The purpose of the utility model is to solve the problem that muddy water will clog the filter holes of the filter net during the mud net filtering process, which will affect the subsequent filtering effect of the filter net on the exhaust gas, resulting in increasingly low exhaust gas treatment efficiency.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a closed calcium carbide furnace tail gas mud net filter mechanism, including a base plate, a box body is fixed on the top of the base plate, a filter body is arranged in the box body, two mounting pipes are equidistantly arranged in the box body, and the surfaces of the two mounting pipes are equidistantly fixed and connected with high-pressure nozzles, a conveying mechanism is arranged on the base plate, and the surface of the box body is respectively installed with an air inlet pipe and an air outlet pipe; the filter body includes two transmission rollers rotatably connected to the box body through bearings, and the surfaces of the two transmission rollers are sleeved with filter nets.

[0006] Preferably, the two installation pipes are both located in the filter screen, and the output end of the high-pressure nozzle is inclined downward toward the air outlet pipe.

[0007] Preferably, the conveying mechanism includes a conveying pump fixed on the top of the base plate, a surface of the box body is installed with a water pumping pipe, one end of the water pumping pipe is located in the box body, and the other end passes through the box body and is fixedly connected to the water inlet end of the conveying pump, one end of the two installation pipes passes through an adjacent side wall of the box body and is fixedly connected with a connecting pipe, and a water inlet pipe is fixedly connected between the output end of the conveying pump and the connecting pipe.

[0008] Preferably, the water extraction pipe is located in the filter screen and below the high-pressure nozzle.

[0009] Preferably, a mounting hole is opened on one surface of the box body, and the water pumping pipe is fixed in the mounting hole.

[0010] Preferably, one end of the two transmission rollers passes through an adjacent side wall of the box and is fixed with a connecting rod, the surfaces of the two connecting rods are both sleeved and fixed with pulleys, the surfaces of the two pulleys are both sleeved with belt bodies, a servo motor is fixed on one surface of the box, and one of the connecting rods is fixedly connected to the output shaft of the servo motor.

[0011] Preferably, a mud cleaning port is provided on the surface of the box body, and a sealing door is hingedly connected to the mud cleaning port via a hinge.

[0012] Compared with the prior art, the advantages and positive effects of the utility model are:

[0013] In the utility model, by arranging the installation pipe, the high-pressure nozzle and the conveying mechanism, both sides of the filter screen are muddy and water areas, and only the water in the middle of the filter screen is relatively clean. By starting the conveying mechanism, this part of the relatively clean water can be pumped into the installation pipe, and the side of the filter screen where the muddy and water are scraped off is flushed from the high-pressure nozzle, so that the mud blocking the mesh of the filter screen can be flushed out. With the continuous operation of the filtering body, the filter screen on the side where the muddy and water are scraped off can be flushed continuously, so that when the filter screen moves to the other side to dip into the muddy and water, the filtering effect of the filter screen can be maintained in the best state, and then the filter screen can be cleaned without stopping the calcium carbide furnace and the mud screen filtering mechanism. In the long run, the filtering effect of the exhaust gas is stable and lasting. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a first-view structural stereogram of the entire structure of a closed calcium carbide furnace tail gas mud net filtering mechanism proposed by the utility model;

[0015] Figure 2 This is a structural plan view of the front part of a closed calcium carbide furnace tail gas mud net filtering mechanism proposed by the utility model;

[0016] Figure 3 This is a second-angle structural stereogram of the overall structure of a closed calcium carbide furnace tail gas mud net filtering mechanism proposed by the utility model;

[0017] Figure 4 This is a structural plan view of the back side of a box in a closed calcium carbide furnace tail gas mud mesh filtering mechanism proposed by the utility model.

[0018] Legend: 1. Bottom plate; 2. Box body; 3. Filter body; 301. Drive roller; 302. Filter screen; 303. Connecting rod; 304. Pulley; 305. Belt body; 306. Servo motor; 4. Mounting pipe; 5. High-pressure nozzle; 6. Conveying mechanism; 601. Conveying pump; 602. Suction pipe; 603. Connecting pipe; 604. Water inlet pipe; 605. Mounting hole; 7. Inlet pipe; 8. Outlet pipe; 9. Sealing door. DETAILED DESCRIPTION

[0019] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0020] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0021] Embodiment 1, as Figure 1-Figure 4 As shown, the utility model provides a closed calcium carbide furnace tail gas mud net filtering mechanism, including a base plate 1, a box body 2 is fixed on the top of the base plate 1, a filter body 3 is arranged in the box body 2, two installation pipes 4 are equidistantly arranged in the box body 2, and the surfaces of the two installation pipes 4 are equidistantly fixed and connected with high-pressure nozzles 5, a conveying mechanism 6 is arranged on the base plate 1, and an air inlet pipe 7 and an air outlet pipe 8 are respectively installed and connected on the surface of the box body 2; the filter body 3 includes two transmission rollers 301 rotatably connected to the box body 2 through bearings, and the surfaces of the two transmission rollers 301 are sleeved with filter nets 302.

[0022] The effect achieved by the entire embodiment 1 is that by starting the conveying mechanism 6, the relatively clean water in the filter screen 302 can be pumped into the installation pipe 4, and the high-pressure nozzle 5 is used to flush the side of the filter screen 302 where the muddy water is scraped off, so that the mud blocking the mesh of the filter screen 302 can be flushed out. With the continuous operation of the filter body 3, the filter screen 302 on the side where the muddy water is scraped off can be automatically flushed, and the filtering effect of the filter screen 302 can be restored before each re-dipping of the muddy water, which can be achieved without people stopping the machine.

[0023] Embodiment 2, as Figure 1-Figure 4As shown, the two installation pipes 4 are both located in the filter 302, and the output end of the high-pressure nozzle 5 is inclined downward toward the air outlet pipe 8; the delivery mechanism 6 includes a delivery pump 601 fixed on the top of the bottom plate 1, and a water extraction pipe 602 is installed on one surface of the box body 2, one end of the water extraction pipe 602 is located in the box body 2, and the other end passes through the box body 2 and is fixedly connected to the water inlet end of the delivery pump 601. One end of the two installation pipes 4 passes through the adjacent side wall of the box body 2 and is fixedly connected with a connecting pipe 603. The output end of the delivery pump 601 and the connecting pipe 603 are fixedly connected with a water inlet pipe 604; the water extraction pipe 602 is located in the filter 3 02 and below the high-pressure nozzle 5; a mounting hole 605 is provided on one surface of the box body 2, and a water suction pipe 602 is fixed in the mounting hole 605; one end of the two transmission rollers 301 passes through an adjacent side wall of the box body 2 and is fixed with a connecting rod 303, and the surfaces of the two connecting rods 303 are both sleeved and fixed with pulleys 304, and the surfaces of the two pulleys 304 are both sleeved with belt bodies 305, and a servo motor 306 is fixed on one surface of the box body 2, and one of the connecting rods 303 is fixedly connected to the output shaft of the servo motor 306; a mud cleaning port is provided on the surface of the box body 2, and a sealing door 9 is hinged on the mud cleaning port through a hinge.

[0024] The effect achieved by the entire embodiment 2 is that the installation position and direction restrictions of the installation pipe 4 and the high-pressure nozzle 5 are so that the high-pressure nozzle 5 can smoothly flush out the mud in the mesh on one side of the filter screen 302 from the inside to the outside, and the delivery pump 601 can smoothly pump the relatively clean water in the box 2 into the installation pipe 4 through the pumping pipe 602, the connecting pipe 603 and the water inlet pipe 604 for the use of the high-pressure nozzle 5. The pumping pipe 602 is located in the filter screen 302 in order to smoothly extract the relatively clean water in the box 2. The servo motor 306 can smoothly drive the filter screen 302 to rotate clockwise. People open the sealing door 9 to clean the mud accumulated in the box 2. After using it for a period of time, the filtering mechanism can be maintained and cleaned.

[0025] Working principle: When in use, start the servo motor 306, and with the cooperation of the connecting rod 303, the pulley 304 and the belt body 305, the two transmission rollers 301 can be driven to rotate, which can drive the filter screen 302 to rotate clockwise from the direction of the air inlet pipe 7 to the direction of the air outlet pipe 8, start the delivery pump 601, and the water suction pipe 602 can suck out the cleaner water in the filter screen 302, and transport the water to the connecting pipe 603 and the installation pipe 4 through the water inlet pipe 604. Finally, the water is flushed to one side of the filter screen 302 by the high-pressure nozzle 5. In this way, before the filter screen 302 is dipped in muddy water next time, the filtering effect of the filter screen 302 is restored. In summary, the problems raised in the above background are solved.

[0026] The above description is only a preferred embodiment of the present invention and does not constitute any other form of limitation to the present invention. Any technician familiar with the profession may use the technical contents disclosed above to change or modify them into equivalent embodiments with equivalent changes and apply them to other fields. However, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present invention without departing from the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A closed calcium carbide furnace tail gas mud net filtering mechanism, characterized by: It comprises a bottom plate (1), a box body (2) is fixed on the top of the bottom plate (1), a filter body (3) is arranged in the box body (2), two installation pipes (4) are arranged at equal distances in the box body (2), and high-pressure nozzles (5) are fixedly connected to the surfaces of the two installation pipes (4) at equal distances, a conveying mechanism (6) is arranged on the bottom plate (1), and an air inlet pipe (7) and an air outlet pipe (8) are respectively installed and connected to the surface of the box body (2); The filter body (3) comprises two transmission rollers (301) rotatably connected to the housing (2) via bearings, and the surfaces of the two transmission rollers (301) are sleeved with filter nets (302); The conveying mechanism (6) comprises a conveying pump (601) fixed on the top of the bottom plate (1); a water extraction pipe (602) is installed and connected to one surface of the box body (2); one end of the water extraction pipe (602) is located inside the box body (2); the other end passes through the box body (2) and is fixedly connected to the water inlet end of the conveying pump (601); one end of the two installation pipes (4) both pass through an adjacent side wall of the box body (2) and are fixedly connected to a connecting pipe (603); and a water inlet pipe (604) is fixedly connected between the output end of the conveying pump (601) and the connecting pipe (603); The water extraction pipe (602) is located in the filter screen (302) and below the high-pressure nozzle (5); A mounting hole (605) is provided on one surface of the box body (2), and the water extraction pipe (602) is fixed in the mounting hole (605).

2. A closed calcium carbide furnace tail gas mud net filtering mechanism according to claim 1, characterized in that: The two installation pipes (4) are both located in the filter screen (302), and the output end of the high-pressure nozzle (5) is inclined downward toward the air outlet pipe (8).

3. A closed calcium carbide furnace tail gas mud net filtering mechanism according to claim 1, characterized in that: One end of the two transmission rollers (301) passes through an adjacent side wall of the box body (2) and is fixed with a connecting rod (303); pulleys (304) are sleeved and fixed on the surfaces of the two connecting rods (303); belt bodies (305) are sleeved on the surfaces of the two pulleys (304); a servo motor (306) is fixed on one surface of the box body (2); and one of the connecting rods (303) is fixedly connected to the output shaft of the servo motor (306).

4. A closed calcium carbide furnace tail gas mud net filtering mechanism according to claim 1, characterized in that: A mud cleaning port is provided on the surface of the box body (2), and a sealing door (9) is hingedly connected to the mud cleaning port via a hinge.

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