Anti-explosion electric control device for preventing leakage of steelmaking gas

Abstract

The utility model discloses a leakproof steel-making gas explosion-proof electric control device, which relates to the field of explosion-proof electric control, and comprises a gas inlet cover, a gas guide cover fixedly mounted on the side surface of the gas inlet cover, a fixed mounting table fixedly mounted on the outer side of the gas guide cover, a valve motor fixedly mounted on the fixed mounting table, a butterfly valve rotatably mounted in the gas guide cover, and a valve rod fixedly mounted on the butterfly valve. The output end of the valve motor is connected with the butterfly valve, the sealing cover is movably installed on the air guide cover, the air suction pipeline is fixedly installed on the sealing cover, the purification box is fixedly installed at the end, away from the sealing cover, of the air suction pipeline, and the atomization box is fixedly installed on the air suction pipeline. And meanwhile, the negative pressure pump is used for generating negative pressure to extract all residual air in the gas guide cover, and the activated carbon filter block is used for filtering and adsorbing, so that the occurrence of gas explosion is avoided, and the safety of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of explosion-proof electric control, in particular to an explosion-proof electric control device for preventing leakage of steelmaking coal gas. Background Art

[0002] In the steelmaking process, the steel raw materials need to be heated to melt. Coal is used as a heat source to heat them. The coal is first ground into coal powder in a coal mill. After it becomes coal powder, it is connected to the coal mill through an air duct by a primary fan. The wind in the primary fan is used to blow the coal powder in the coal mill into the boiler for combustion.

[0003] In the prior art, a boiler will produce a portion of gas during combustion. If the gas leaks through the fan, a safety accident may occur. Therefore, a leakage-proof steelmaking gas explosion-proof electronic control device is needed to meet people's needs. Utility Model Content

[0004] The utility model aims to provide an anti-leakage steelmaking gas explosion-proof electric control device to solve the problem in the above background technology that a boiler will produce a part of gas during combustion, and if the gas leaks through the fan, a safety accident may occur.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an anti-leakage steelmaking gas explosion-proof electric control device, comprising an air intake hood, an air guide hood is fixedly installed on the side of the air intake hood, a fixed mounting platform is fixedly installed on the outer side of the air guide hood, a valve motor is fixedly installed on the fixed mounting platform, a butterfly valve is rotatably installed in the air guide hood, the output end of the valve motor is connected to the butterfly valve, a sealing hood is movably installed on the air guide hood, an air intake pipe is fixedly installed on the sealing hood, a purification box is fixedly installed on the end of the air intake pipe away from the sealing hood, an atomization box is fixedly installed on the air intake pipe, a fan motor is fixedly installed on the air intake hood, a transmission rod is fixedly installed on the output end of the fan motor, a fan is fixedly installed on the transmission rod, and a gas sensor is fixedly installed in the air guide hood.

[0006] Preferably, a movable sealing sleeve is slidably mounted on the inner wall of the sealing cover, a plurality of through holes are provided in the annular shape of the air guide cover, and the movable sealing sleeve is matched with the through holes.

[0007] Preferably, the air guide cover is fixedly mounted with six control cylinders, the output end of the control cylinder is fixedly mounted with a same connecting ring, six sliding rods are fixedly mounted on the connecting ring, six sliding holes are opened on the sealing cover, the sliding rods pass through the sliding holes and are fixedly mounted on the movable sealing sleeve.

[0008] Preferably, a nozzle seat is fixedly mounted on the inner wall of the atomizing box, a nozzle is fixedly mounted on the bottom of the nozzle seat, a water delivery pipeline is fixedly mounted on the side of the atomizing box, and the water delivery pipeline is connected to the nozzle seat.

[0009] Preferably: a negative pressure pump is fixedly installed in the purification box, the input end of the negative pressure pump is connected to the air intake pipe, and the output end of the negative pressure pump is fixedly installed with a connecting pipe.

[0010] Preferably, a filter chamber is provided in the purification box, an exhaust pipe is fixedly installed on the outside of the purification box, and the exhaust pipe and the connecting pipe are in contact with the filter chamber.

[0011] Preferably, an activated carbon filter block is fixedly installed in the filter bin, and multiple activated carbon filter blocks are stacked and used in combination.

[0012] The beneficial effects of the utility model are:

[0013] In the utility model, a butterfly valve is used as a cutoff means in the gas hood to prevent the gas from further diffusing and leaking through the gas hood. At the same time, a negative pressure pump is used to generate negative pressure to extract all the residual air in the gas hood, and an activated carbon filter block is used for filtering and adsorption to avoid the occurrence of gas explosion and improve the safety of the device.

[0014] In the utility model, the movable sealing sleeve is driven by the control cylinder to be movable, so as to freely control the sealing of the through hole, thereby not affecting the daily coal powder conveying work of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a three-dimensional structural schematic diagram of an anti-leakage steelmaking gas explosion-proof electric control device proposed by the utility model;

[0016] Figure 2 This is a side structural schematic diagram of an anti-leakage steelmaking gas explosion-proof electric control device proposed by the utility model;

[0017] Figure 3 This is a schematic diagram of the internal structure of an anti-leakage steelmaking gas explosion-proof electric control device proposed by the utility model;

[0018] Figure 4 This is a structural schematic diagram of the atomizing box part of an anti-leakage steelmaking gas explosion-proof electric control device proposed by the utility model;

[0019] Figure 5 This is a schematic structural diagram of the purification box portion of a leakage-proof steelmaking gas explosion-proof electric control device proposed by the utility model;

[0020] Figure 6 The utility model discloses a schematic structural diagram of an air intake hood of an anti-leakage steelmaking gas explosion-proof electric control device.

[0021] In the figure: 100, air intake hood; 101, fan motor; 102, transmission rod; 103, fan; 200, air guide hood; 201, fixed mounting platform; 202, valve motor; 203, butterfly valve; 204, through hole; 205, gas sensor; 300, sealing hood; 301, suction pipe; 302, movable sealing sleeve; 303, sliding hole; 304, sliding rod; 305, control cylinder; 306, connecting ring; 400, atomization box; 401, nozzle seat; 402, nozzle; 403, water pipeline; 500, purification box; 501, exhaust pipe; 502, negative pressure pump; 503, connecting pipe; 504, filter bin; 505, activated carbon filter block. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0023] Reference Figure 1-6 A leakage-proof steelmaking coal gas explosion-proof electric control device includes an air intake hood 100, an air guide hood 200 is fixedly installed on the side of the air intake hood 100, a fixed mounting platform 201 is fixedly installed on the outer side of the air guide hood 200, a valve motor 202 is fixedly installed on the fixed mounting platform 201, a butterfly valve 203 is rotatably installed in the air guide hood 200, and the output end of the valve motor 202 is connected to the butterfly valve 203, a sealing hood 300 is movably installed on the air guide hood 200, an air intake pipe 301 is fixedly installed on the sealing hood 300, and a purification box 500 is fixedly installed on one end of the air intake pipe 301 away from the sealing hood 300 A mist box 400 is fixedly installed on the air intake pipe 301, a fan motor 101 is fixedly installed on the air intake hood 100, a transmission rod 102 is fixedly installed on the output end of the fan motor 101, and a fan 103 is fixedly installed on the transmission rod 102. A gas sensor 205 is fixedly installed in the air guide hood 200, and a butterfly valve is used in the air guide hood as a cutoff means to prevent the gas from further diffusing and leaking through the air guide hood. At the same time, a negative pressure pump is used to generate negative pressure to extract all the residual air in the air guide hood, and an activated carbon filter block is used for filtering and adsorption to avoid the occurrence of gas explosion and improve the safety of the device.

[0024] In an optional embodiment: a movable sealing sleeve 302 is slidably installed on the inner wall of the sealing cover 300, a plurality of through holes 204 are provided in an annular shape of the air guide cover 200, the movable sealing sleeve 302 is adapted to the through holes 204, six control cylinders 305 are fixedly installed on the air guide cover 200, the output end of the control cylinder 305 is fixedly installed with the same connecting ring 306, six sliding rods 304 are fixedly installed on the connecting ring 306, six sliding holes 303 are provided on the sealing cover 300, the sliding rods 304 pass through the sliding holes 303 and are fixedly installed on the movable sealing sleeve 302, the output end of the control cylinder 305 drives the connecting ring 306 to move, the connecting ring 306 drives the sliding rods 304 to slide in the sliding holes 303, so that the movable sealing sleeve 302 moves to a movable position, exposing the through holes 204, and at this time the negative pressure pump 502 in the purification box 500 is started, so that the residual air inside the air guide cover 200 is collected through the suction pipe 301 and the sealing cover 300.

[0025] In an optional embodiment: a nozzle holder 401 is fixedly installed on the inner wall of the atomizing box 400, a nozzle 402 is fixedly installed on the bottom of the nozzle holder 401, a water pipe 403 is fixedly installed on the side of the atomizing box 400, and the water pipe 403 is connected to the nozzle holder 401. Inside the atomizing box 400, the nozzle holder 401 and the nozzle 402 cooperate with each other to spray water mist into the gas to prevent the gas from being accidentally ignited.

[0026] In an optional embodiment: a negative pressure pump 502 is fixedly installed in the purification box 500, the input end of the negative pressure pump 502 is connected to the suction pipe 301, and a connecting pipe 503 is fixedly installed at the output end of the negative pressure pump 502. A filter bin 504 is opened in the purification box 500, and an exhaust pipe 501 is fixedly installed on the outside of the purification box 500. Both the exhaust pipe 501 and the connecting pipe 503 are in contact with the filter bin 504. Air is transported to the filter bin 504 through the negative pressure pump 502 and the connecting pipe 503, and is filtered by an activated carbon filter block 505 to solidify the coal gas components, and the safe gas is discharged from the exhaust pipe 501. An activated carbon filter block 505 is fixedly installed in the filter bin 504, and multiple activated carbon filter blocks 505 are stacked and used together.

[0027] Working principle of this utility model:

[0028] When using the device, the fan motor 101 is started, so that the fan motor 101 drives the transmission rod 102 and the fan 103 to rotate, thereby driving the coal powder to be transported in the air intake hood 100 and the air guide hood 200. When the gas sensor 205 on the inner wall of the air guide hood 200 detects the gas, the valve motor 202 is first started, and the output end of the valve motor 202 drives the butterfly valve 203 to rotate, so as to seal the output end of the air guide hood 200 to prevent further diffusion of the gas, and the output end of the control cylinder 305 drives the connecting ring 306 to move. The connecting ring 306 drives the slide rod 304 to slide in the slide hole 303, so that the movable sealing sleeve 302 moves to a movable position, exposing the through hole 204. At this time, the negative pressure pump 502 in the purification box 500 is started, so that the residual air in the air guide cover 200 is collected through the suction pipe 301 and the sealing cover 300. The air is transported to the filter bin 504 through the negative pressure pump 502 and the connecting pipe 503, filtered by the activated carbon filter block 505, solidified the gas components, and the safe gas is discharged from the exhaust pipe 501.

[0029] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An anti-leakage steelmaking gas explosion-proof electric control device, comprising an air intake hood (100), characterized in that: An air guide cover (200) is fixedly mounted on the side of the air intake cover (100), a fixed mounting platform (201) is fixedly mounted on the outer side of the air guide cover (200), a valve motor (202) is fixedly mounted on the fixed mounting platform (201), a butterfly valve (203) is rotatably mounted in the air guide cover (200), an output end of the valve motor (202) is connected to the butterfly valve (203), a sealing cover (300) is movably mounted on the air guide cover (200), and a suction valve (203) is fixedly mounted on the sealing cover (300). An air duct (301) is provided, a purification box (500) is fixedly installed at one end of the air intake duct (301) away from the sealing cover (300), an atomization box (400) is fixedly installed on the air intake duct (301), a fan motor (101) is fixedly installed on the air intake cover (100), a transmission rod (102) is fixedly installed on the output end of the fan motor (101), a fan (103) is fixedly installed on the transmission rod (102), and a gas sensor (205) is fixedly installed in the air guide cover (200).

2. The anti-leakage steelmaking gas explosion-proof electric control device according to claim 1 is characterized in that: A movable sealing sleeve (302) is slidably mounted on the inner wall of the sealing cover (300), a plurality of through holes (204) are provided in an annular shape of the air guide cover (200), and the movable sealing sleeve (302) is adapted to the through holes (204).

3. The anti-leakage steelmaking gas explosion-proof electric control device according to claim 1 is characterized in that: The air guide cover (200) is fixedly mounted with six control cylinders (305), the output end of the control cylinder (305) is fixedly mounted with a same connecting ring (306), six sliding rods (304) are fixedly mounted on the connecting ring (306), six sliding holes (303) are opened on the sealing cover (300), and the sliding rods (304) pass through the sliding holes (303) and are fixedly mounted on the movable sealing sleeve (302).

4. The anti-leakage steelmaking gas explosion-proof electric control device according to claim 1 is characterized in that: A nozzle seat (401) is fixedly mounted on the inner wall of the atomizing box (400), a nozzle (402) is fixedly mounted on the bottom of the nozzle seat (401), and a water delivery pipeline (403) is fixedly mounted on the side of the atomizing box (400), and the water delivery pipeline (403) is connected to the nozzle seat (401).

5. The anti-leakage steelmaking gas explosion-proof electric control device according to claim 1 is characterized in that: A negative pressure pump (502) is fixedly installed in the purification box (500), the input end of the negative pressure pump (502) is connected to the air intake pipe (301), and the output end of the negative pressure pump (502) is fixedly installed with a connecting pipe (503).

6. The anti-leakage steelmaking gas explosion-proof electric control device according to claim 1, characterized in that: A filter chamber (504) is provided in the purification box (500), an exhaust pipe (501) is fixedly installed on the outside of the purification box (500), and the exhaust pipe (501) and the connecting pipe (503) are both in contact with the filter chamber (504).

7. The anti-leakage steelmaking gas explosion-proof electric control device according to claim 6, characterized in that: An activated carbon filter block (505) is fixedly installed in the filter chamber (504), and multiple activated carbon filter blocks (505) are stacked and used together.

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