Strip steel production waste gas treatment device

Abstract

The application relates to the technical field of waste gas treatment, in particular to a strip steel production waste gas treatment device, which comprises a shell, a gas outlet pipe is through-connected to the top surface of the shell, a filler layer is arranged in the shell, a receiving pipe is arranged below the filler layer, a guide pipe is through-connected to the bottom surface of the receiving pipe, a spraying head is arranged at the bottom end of the guide pipe, a pair of through holes is symmetrically arranged on the two sides of the shell, a first partition plate is inserted into the through hole, a first connecting frame is fixedly connected to one end of the first partition plate located outside the through hole, and a first telescopic rod is arranged between the first connecting frame and the shell; the strip steel production waste gas treatment device can generate a sealed space in the living room through the first partition plate and a second partition plate, waste gas can be continuously treated by water mist in the sealed space, the treatment time of the waste gas is increased, the waste gas can be fully contacted with the water mist, and the waste gas treatment effect is improved; and then the waste gas in the shell can be repeatedly treated.

Description

Technical Field

[0001] This invention relates to the field of waste gas treatment technology, and in particular to a waste gas treatment device for strip steel production. Background Technology

[0002] Waste gas is generated during the strip steel production process. The waste gas mainly comes from the following three aspects: First, the transportation, loading and unloading, and processing of raw materials and fuels, which generate waste gas containing a large amount of dust; Second, the production process of various kilns, which generate waste gas containing a large amount of dust and harmful gases; Third, the waste gas generated during chemical reactions in the production process, such as the waste gas generated during pickling.

[0003] The current treatment of the aforementioned waste gas requires multiple processes. Generally, the first step is spray treatment. Specifically, during treatment, the waste gas is input from the bottom of the spray tower, and water mist is sprayed from the top of the tower. As the water mist falls, it comes into contact with the waste gas entering the tower, adsorbing pollutant particles and gases in the waste gas. However, in actual treatment, the waste gas is continuously flowing, and the time the waste gas stays in the spray tower is limited. Therefore, the contact time between the water mist and the waste gas is limited, and the waste gas is difficult to be completely treated when it is discharged from the spray tower. In other words, the waste gas treatment effect needs to be further optimized. Summary of the Invention

[0004] Therefore, the technical problem to be solved by the present invention is to overcome the fact that in the prior art, the exhaust gas is continuously flowing and the exhaust gas has a limited residence time in the spray tower. As a result, the contact time between the water mist and the exhaust gas is limited, and the exhaust gas is difficult to be completely treated when it is discharged from the spray tower. In other words, the exhaust gas treatment effect needs to be further optimized.

[0005] To solve the above-mentioned technical problems, the present invention provides a strip steel production waste gas treatment device, including a shell, an outlet pipe connected through the top surface of the shell, a packing layer disposed inside the shell, a receiving pipe disposed below the packing layer, a conduit connected through the bottom surface of the receiving pipe, a spray head installed at the bottom end of the conduit, a pair of through holes symmetrically opened on both sides of the shell, a first partition plate inserted into the inside of the through holes, a first connecting frame fixedly connected to one end of the first partition plate outside the through holes, and a first telescopic rod disposed between the first connecting frame and the shell, respectively positioned... On opposite sides of the two first partitions with through holes on both sides, there are relief grooves that cooperate with the conduit. When the two first partitions are connected, the relief grooves of the two first partitions contact the conduit, and the two first partitions after connection isolate the internal space of the shell into upper and lower layers. An air inlet is provided on the side of the shell below the through hole. A rectangular cylinder is inserted into the air inlet. An air inlet pipe is connected through the side of the rectangular cylinder. A second partition is inserted through the top surface of the rectangular cylinder. A second telescopic rod is provided on the top surface of the second partition. The second telescopic rod is installed on the shell.

[0006] In one embodiment of the present invention, a rubber pad is provided at one end of the first partition plate located in the housing.

[0007] In one embodiment of the present invention, a rubber sleeve is fitted onto one end of the first partition outside the housing, and the other end of the rubber sleeve is fixed to the surface of the housing; the through hole is sealed by the first partition and the rubber sleeve.

[0008] In one embodiment of the present invention, a connecting rod is provided on the bottom surface of the spray head, and an air cylinder is fixedly connected to the bottom end of the connecting rod. A support frame is provided inside the air cylinder, and a motor is provided on the bottom surface of the support frame. A rotating shaft is fixedly connected to the top end of the output end of the motor, and fan blades are provided on the surface of the rotating shaft. The opening of the air cylinder points to the bottom surface of the spray head.

[0009] In one embodiment of the present invention, an isolation cover is provided on the bottom surface of the support frame, the isolation cover is sleeved on the motor, and the isolation cover, together with the support frame, isolates the motor housing from the internal space of the housing, and the motor output end passes through the isolation cover.

[0010] In one embodiment of the present invention, a heat dissipation pipe is connected through the bottom surface of the isolation cover, and the bottom end of the heat dissipation pipe extends through to the outside of the housing.

[0011] In one embodiment of the present invention, a third telescopic rod is provided on the side of the housing, and a second connecting frame is provided at the output end of the third telescopic rod. A guide rod is fixedly connected to the end of the second connecting frame away from the third telescopic rod. The guide rod extends into the interior of the housing, and a scraper is provided at one end located inside the housing. When the scraper moves, its top end contacts the bottom surface of the first partition plate, and its side surface contacts the inner wall of the housing.

[0012] In one embodiment of the present invention, a baffle plate is provided inside the housing, and a plurality of protrusions are uniformly provided on the top surface of the baffle plate. The scraper is elastic and is intermittently blocked by the protrusions during its movement, causing deformation.

[0013] In one embodiment of the present invention, a connecting pipe is provided on the bottom surface of the spray head, and a plurality of through holes are uniformly formed on the surface of the connecting pipe.

[0014] In one embodiment of the present invention, a pair of pressure relief holes are provided on both sides of the housing based on central symmetry. A pressure relief cylinder is inserted into the inside of the pressure relief hole. A pressure relief plate is slidably connected inside the pressure relief cylinder. A fourth telescopic rod is installed at the opening of the pressure relief cylinder. Initially, the output end of the fourth telescopic rod is not in contact with the pressure relief plate. There is friction between the pressure relief plate and the pressure relief cylinder.

[0015] The technical solution of the present invention has the following advantages compared with the prior art:

[0016] 1. The waste gas treatment device for strip steel production of the present invention creates a sealed space in the living room through a first partition and a second partition. The waste gas is continuously treated by water mist in the sealed space. The treatment time of the waste gas is increased, so that the waste gas and water mist can fully contact each other, thereby improving the waste gas treatment effect. Then, the first partition is driven to reset by the first telescopic rod and the first connecting frame. The treated waste gas is extracted from the shell and then isolated inside the shell by the first partition. The second partition is driven to reset by the second telescopic rod. At the same time, the air inlet pipe continues to fill the rectangular cylinder with waste gas, and then the isolation and treatment of the waste gas inside the shell is repeated.

[0017] 2. The waste gas treatment device for strip steel production of the present invention, by setting a ventilation cylinder below the spray head, when the waste gas is continuously treated by the water mist sprayed from the spray head in the shell, the motor starts and drives the rotating shaft to rotate. The rotating shaft drives the fan blades on the surface to rotate synchronously, so that the waste gas drawn into the ventilation cylinder rushes to the spray outlet position of the spray head. The waste gas in the shell is directed and concentrated to be sprayed out by the water mist from the spray head to counteract it, thereby increasing the contact speed between the waste gas and the water mist, and thus improving the efficiency of waste gas treatment. Attached Figure Description

[0018] To make the content of this invention easier to understand, the invention will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0019] Figure 1 This is an overall schematic diagram of the invention;

[0020] Figure 2 This is a schematic diagram of the housing of the present invention;

[0021] Figure 3 This is a schematic diagram of the internal structure of the housing of the present invention;

[0022] Figure 4 This is a schematic diagram of the structure below the bearing pipe of the present invention;

[0023] Figure 5 This is a schematic diagram of the spray head of the present invention;

[0024] Figure 6 This is a schematic diagram of the first partition of the present invention;

[0025] Figure 7 This is the present invention. Figure 1 Enlarged diagram of part A in the middle;

[0026] Figure 8 This is the present invention. Figure 1 Enlarged diagram of section B;

[0027] Figure 9 This is a schematic diagram of the structure on the third telescopic rod of the present invention;

[0028] Figure 10 This is the present invention. Figure 9 Enlarged diagram of section C;

[0029] Figure 11 This is a side view of the device of the present invention;

[0030] Figure 12 This is a schematic diagram of the ventilation cylinder of the present invention;

[0031] Figure 13 This is a schematic diagram of the internal structure of the ventilation cylinder of the present invention.

[0032] Explanation of reference numerals in the accompanying drawings: 1. Shell; 11. Air outlet pipe; 12. Packing layer; 13. Receiving pipe; 14. Conduit; 15. Spray head; 2. Through hole; 21. First partition; 22. First telescopic rod; 23. First connecting frame; 24. Rubber sleeve; 3. Air inlet; 31. Rectangular cylinder; 32. Second partition; 33. Second telescopic rod; 4. Ventilation cylinder; 41. Support frame; 42. Motor; 43. Rotating shaft; 44. Fan blade; 45. Isolation cover; 46. Heat dissipation pipe; 5. Third telescopic rod; 51. Second connecting frame; 511. Guide rod; 52. Scraper; 53. Baffle plate; 6. Connecting pipe; 7. Pressure relief hole; 71. Pressure relief cylinder; 72. Fourth telescopic rod; 73. Pressure relief plate. Detailed Implementation

[0033] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand and implement the present invention. However, the embodiments described are not intended to limit the present invention.

[0034] Reference Figures 1-7 As shown, a strip steel production waste gas treatment device of the present invention includes a shell 1, an outlet pipe 11 connected through the top surface of the shell 1, a packing layer 12 disposed inside the shell 1, a receiving pipe 13 disposed below the packing layer 12, a conduit 14 connected through the bottom surface of the receiving pipe 13, a spray head 15 installed at the bottom end of the conduit 14, a pair of through holes 2 symmetrically opened on both sides of the shell 1, a first partition plate 21 inserted into the through holes 2, a first connecting frame 23 fixedly connected to one end of the first partition plate 21 outside the through holes 2, and a first telescopic rod 22 disposed between the first connecting frame 23 and the shell 1, respectively located at the through holes 2 on both sides. Each of the two first partitions 21 has a clearance groove on one side opposite to the conduit 14. When the two first partitions 21 are connected, the clearance grooves of the two first partitions 21 contact the conduit 14, and the two first partitions 21 after connection isolate the internal space of the housing 1 into upper and lower layers. An air inlet 3 is provided on the side of the housing 1 and below the through hole 2. A rectangular cylinder 31 is inserted into the air inlet 3. An air inlet pipe is connected through the side of the rectangular cylinder 31. A second partition 32 is inserted through the top surface of the rectangular cylinder 31. A second telescopic rod 33 is provided on the top surface of the second partition 32. The second telescopic rod 33 is installed on the housing 1.

[0035] In use, waste gas is injected into the rectangular cylinder 31 through the air inlet pipe. The waste gas is filled into the housing 1 through the air inlet hole 3. An input pipe is connected through the surface of the receiving pipe 13. The input pipe injects spray liquid into the receiving pipe 13. The receiving pipe 13 injects spray liquid into the spray head 15 through the conduit 14. The spray head 15 sprays the spray liquid downward in the form of water mist in the housing 1. After being flushed with the waste gas, the treated waste gas passes through the packing layer 12 and is then sprayed out through the air outlet pipe 11.

[0036] During the aforementioned waste gas treatment process, the first telescopic rod 22 intermittently drives the first partition 21 to move into the housing 1 through the through hole 2 via the first connecting frame 23. The first partitions 21 on both sides of the housing 1 are relatively close and connected, and together with the conduit 14, the interior of the housing 1 is isolated, and the waste gas is collected in the area below the first partition 21. At this time, the second telescopic rod 33 drives the second partition 32 to insert into the rectangular cylinder 31, isolating the rectangular cylinder 31 from the air inlet pipe, and at the same time, stops the air inlet pipe from injecting waste gas into the rectangular cylinder 31. The waste gas entering the housing 1 is sprayed by water from the spray head 15. The continuous mist treatment increases the treatment time of the exhaust gas, allowing for full contact between the exhaust gas and the water mist, thus improving the treatment effect. Then, the first telescopic rod 22 and the first connecting frame 23 move the first partition 21 back to its original position, and the treated exhaust gas is extracted from the housing 1. The first partition 21 then isolates the interior of the housing 1. The second telescopic rod 33 moves the second partition 32 back to its original position, while the air inlet pipe continues to fill the rectangular cylinder 31 with exhaust gas, and the process of isolating and treating the exhaust gas inside the housing 1 is repeated. It should be noted that the inflation of the telescopic rod and the air inlet pipe is automatically controlled by a microcomputer.

[0037] A rubber pad is provided at one end of the first partition 21 located in the housing 1. When a pair of first partitions 21 are connected to each other to isolate the inside of the housing 1, the rubber pads provided at the ends of the first partitions 21 will press against each other, thereby improving the isolation and sealing effect of the first partitions 21 on the inside of the housing 1.

[0038] A rubber sleeve 24 is fitted onto one end of the first partition 21 outside the housing 1, and the other end of the rubber sleeve 24 is fixed to the surface of the housing 1. The through hole 2 is sealed by the first partition 21 and the rubber sleeve 24. When the first partition 21 moves, the rubber sleeve 24 at its end cooperates with the first partition 21 to seal the through hole 2, thereby improving the sealing effect of the through hole 2 and preventing exhaust gas from leaking through the gap between the through hole 2 and the first partition 21.

[0039] Reference Figure 3 , Figure 12 , Figure 13As shown, a connecting rod is provided on the bottom surface of the spray head 15, and a ventilator 4 is fixedly connected to the bottom end of the connecting rod. A support frame 41 is provided inside the ventilator 4, and a motor 42 is provided on the bottom surface of the support frame 41. A rotating shaft 43 is fixedly connected to the top end of the output end of the motor 42, and a fan blade 44 is provided on the surface of the rotating shaft 43. The opening of the ventilator 4 points to the bottom surface of the spray head 15. When the exhaust gas is continuously treated by the water mist sprayed by the spray head 15 in the housing 1, the motor 42 starts and drives the rotating shaft 43 to rotate. The rotating shaft 43 drives the fan blade 44 on the surface to rotate synchronously, so that the exhaust gas drawn into the ventilator 4 rushes to the spray outlet position of the spray head 15. The exhaust gas in the housing 1 is directed and concentrated to be sprayed by the water mist from the spray head 15 to counteract it, thereby increasing the contact speed between the exhaust gas and the water mist and thus improving the efficiency of exhaust gas treatment.

[0040] The bottom surface of the support frame 41 is provided with an isolation cover 45, which is fitted onto the motor 42. The isolation cover 45, together with the support frame 41, isolates the outer shell of the motor 42 from the internal space of the housing 1. The output end of the motor 42 passes through the isolation cover 45. The isolation cover 45 is fitted onto the outer shell of the motor 42, which isolates the motor 42 from the water mist inside the housing 1 and protects the motor 42.

[0041] A heat dissipation pipe 46 is connected to the bottom surface of the isolation cover 45, and the bottom end of the heat dissipation pipe 46 extends to the outside of the housing 1. The heat generated by the motor 42 when it is working is dissipated to the outside of the housing 1 through the heat dissipation pipe 46, which is beneficial to the continuous operation of the motor 42.

[0042] Reference Figures 8-10 As shown, a third telescopic rod 5 is provided on the side of the housing 1. A second connecting frame 51 is provided at the output end of the third telescopic rod 5. A guide rod 511 is fixedly connected to the end of the second connecting frame 51 away from the third telescopic rod 5. The guide rod 511 extends into the interior of the housing 1, and a scraper 52 is provided at one end inside the housing 1. When the scraper 52 moves, its top end contacts the bottom surface of the first partition 21, and its side surface contacts the inner wall of the housing 1. During use, dust particles and impurities in the exhaust gas may adhere to the bottom surface of the first partition 21. As the first partition 21 moves relative to the housing 1, the dust particles on the bottom surface accumulate. The dust particles accumulate at the junction of the first partition 21 and the inner wall of the housing 1. At this time, the third telescopic rod 5 is activated. The third telescopic rod 5 drives the scraper 52 to move inside the housing 1 through the guide rod 511. When the scraper 52 moves, its top end contacts the bottom surface of the first partition 21 and its side surface contacts the inner wall of the housing 1. Therefore, when the scraper 52 moves, it will drive the dust particles accumulated at the junction of the first partition 21 and the inner wall of the housing 1 to be concentrated again. The concentrated dust particles fall downwards to the bottom of the housing 1 under their own gravity and flow out with the spray liquid. This improves the overall self-cleaning ability and is beneficial to the continuous treatment of waste gas.

[0043] The shell 1 is equipped with a baffle plate 53. The top surface of the baffle plate 53 is uniformly provided with multiple protrusions. The scraper 52 is elastic and is intermittently blocked by the protrusions during its movement, causing it to deform. When the scraper 52 moves, it is intermittently blocked by the protrusions on the baffle plate 53, causing the scraper 52 to deform and reset. The scraper 52 oscillates, causing the entire device to oscillate synchronously, thereby accelerating the dust particles accumulated at the junction of the first partition plate 21 and the inner wall of the shell 1 to fall downward. At the same time, it also accelerates the dust particles attached to the inner wall of the shell 1 to move downward into the concentrated spray liquid inside the shell 1, and then the spray liquid flows out of the shell 1.

[0044] Reference Figure 3 As shown, a connecting pipe 6 is provided on the bottom surface of the spray head 15, and multiple through holes are evenly opened on the surface of the connecting pipe 6. When the spray head 15 sprays water mist, the water mist is guided downward through the connecting pipe 6. The water mist entering the connecting pipe 6 is sprayed out through the through holes and the lower opening, so that it is horizontally and directionally released into the area of ​​the housing 1. The water mist fully covers the sealed space below the first partition 21, which is beneficial to the contact with particles in the exhaust gas and further improves the efficiency of exhaust gas treatment.

[0045] Reference Figure 8 , Figure 11 As shown, a pair of pressure relief holes 7 are centrally symmetrically opened on both sides of the housing 1. A pressure relief cylinder 71 is inserted into the pressure relief hole 7, and a pressure relief plate 73 is slidably connected inside the pressure relief cylinder 71. A fourth telescopic rod 72 is installed at the opening of the pressure relief cylinder 71. Initially, the output end of the fourth telescopic rod 72 is not in contact with the pressure relief plate 73. There is friction between the pressure relief plate 73 and the pressure relief cylinder 71. When a large amount of waste gas enters the housing 1 each time, the air pressure in the sealed space below the first partition 21 inside the housing 1 is relatively high. When the spray head 15 sprays liquid, it also injects outside air into the sealed space, making the seal... As the air pressure in the sealed space gradually increases, a pressure relief hole 7 is provided. A pressure relief cylinder 71 is inserted into the pressure relief hole 7. When the air pressure in the sealed space reaches the friction force between the pressure relief cylinder 71 and the pressure relief plate 73, the air pressure acts on the pressure relief plate 73 inside the pressure relief cylinder 71. The pressure relief plate 73 slides inside the pressure relief cylinder 71, thereby increasing the volume of the sealed space, reducing the air pressure in the sealed space, and preventing the device from being damaged due to excessive air pressure in the sealed space. After the exhaust gas treatment is completed, the fourth telescopic rod 72 is activated, and the output end approaches the pressure relief plate 73 and squeezes and moves the pressure relief plate 73 to reset. After that, the output end is reset.

[0046] During operation, exhaust gas is injected into the rectangular cylinder 31 through the intake pipe. The exhaust gas also enters the housing 1 through the intake hole 3. An input pipe is connected to the surface of the receiving pipe 13, injecting spray liquid into the receiving pipe 13. The receiving pipe 13 injects spray liquid into the spray head 15 through the conduit 14. The spray head 15 sprays the spray liquid downward in the form of water mist inside the housing 1, which comes into contact with the exhaust gas after being flushed against it. The treated exhaust gas then passes through the packing layer 12 and is sprayed out through the exhaust pipe 11. Afterward, the first telescopic rod 22 intermittently drives the first partition 21 to move into the housing 1 through the through hole 2 via the first connecting frame 23. The first partitions 21 on both sides of the housing 1 are brought closer together and, together with the conduit 14, isolate the interior of the housing 1. The exhaust gas is collected in the area below the first partition 21. At this time, the second telescopic rod 33 drives the second partition 32 to insert into the rectangular cylinder 31, isolating the rectangular cylinder 31 from the intake pipe. Simultaneously, the intake pipe stops injecting exhaust gas into the rectangular cylinder 31. The exhaust gas entering the housing 1 is continuously treated by the water mist sprayed from the spray head 15. The treatment time of the exhaust gas is increased, allowing the exhaust gas to fully contact the water mist and improving the exhaust gas treatment effect. Then, the first partition 21 is driven to reset by the first telescopic rod 22 and the first connecting frame 23. The treated exhaust gas is extracted from the housing 1 and then isolated inside the housing 1 by the first partition 21. The second partition 32 is driven to reset by the second telescopic rod 33. At the same time, the intake pipe continues to fill the rectangular cylinder 31 with exhaust gas, and then the isolation and treatment of the exhaust gas inside the housing 1 is repeated. It should be noted that the inflation of the above-mentioned telescopic rod and intake pipe is automatically controlled by a microcomputer. When a pair of first partitions 21 are connected to isolate the inside of the housing 1, the rubber pads set at the ends of the first partitions 21 will press against each other, improving the isolation and sealing effect of the first partitions 21 on the inside of the housing 1.

[0047] When the first partition 21 moves, the rubber sleeve 24 at its end cooperates with the first partition 21 to seal the through hole 2, improving the sealing effect of the through hole 2. When the exhaust gas is continuously treated by the water mist sprayed from the spray head 15 inside the housing 1, the motor 42 starts, driving the rotating shaft 43 to rotate. The rotating shaft 43 drives the fan blades 44 on the surface to rotate synchronously, so that the exhaust gas drawn in by the ventilation cylinder 4 rushes to the spray outlet position of the spray head 15, and the exhaust gas inside the housing 1 is directed and concentrated to be sprayed out by the water mist from the spray head 15 for counter-current. An isolation cover 45 is fitted over the motor 42, which isolates the motor 42 from the water mist inside the housing 1 and protects the motor 42. The heat generated by the motor 42 during operation is dissipated to the outside of the housing 1 through the heat dissipation pipe 46. This is beneficial for the continuous operation of motor 42. During use, dust particles and impurities in the exhaust gas may adhere to the bottom surface of the first partition 21. As the first partition 21 moves relative to the housing 1, the dust particles on the bottom surface accumulate at the junction of the first partition 21 and the inner wall of the housing 1. At this time, the third telescopic rod 5 is activated. The third telescopic rod 5 drives the scraper 52 to move inside the housing 1 through the guide rod 511. When the scraper 52 moves, its top end contacts the bottom surface of the first partition 21, and its side side contacts the inner wall of the housing 1. Therefore, when the scraper 52 moves, it will drive the dust particles accumulated at the junction of the first partition 21 and the inner wall of the housing 1 to concentrate again. The concentrated dust particles fall downwards to the bottom of the housing 1 due to their own gravity.

[0048] As the scraper 52 moves, it is intermittently blocked by the protrusions on the baffle plate 53, causing it to deform and reset. This vibration of the scraper 52 synchronizes the entire device, accelerating the downward shedding of dust particles accumulated at the junction of the first partition plate 21 and the inner wall of the housing 1. It also accelerates the downward movement of dust particles adhering to the inner wall of the housing 1 into the concentrated spray liquid within the housing 1. When the spray head 15 sprays water mist, the mist is guided downwards through the receiving pipe 6. The water mist entering the receiving pipe 6 is then sprayed out through the through-hole and the lower opening, allowing it to be horizontally and directionally released into the area of ​​the housing 1. The water mist fully covers the sealed space below the first partition plate 21, facilitating the interaction with the exhaust gas. The contact of particles further improves the efficiency of waste gas treatment. When a large amount of waste gas enters the housing 1 each time, the air pressure in the sealed space below the first partition 21 inside the housing 1 is relatively high. When the spray head 15 sprays liquid, it also injects outside air into the sealed space, and the air pressure in the sealed space gradually increases. Therefore, a pressure relief hole 7 is provided, and a pressure relief cylinder 71 is inserted into the pressure relief hole 7. When the air pressure in the sealed space reaches the friction between the pressure relief cylinder 71 and the pressure relief plate 73, the air pressure acts on the pressure relief plate 73 inside the pressure relief cylinder 71. The pressure relief plate 73 slides inside the pressure relief cylinder 71, thereby increasing the volume of the sealed space, reducing the air pressure in the sealed space, and preventing the device from being damaged due to excessive air pressure in the sealed space.

[0049] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.

Claims

1. A waste gas treatment device for strip steel production, characterized in that: The enclosure includes a housing (1), with an air outlet pipe (11) connected to the top surface of the housing (1). A packing layer (12) is provided inside the housing (1), and a receiving pipe (13) is provided below the packing layer (12). A conduit (14) is connected to the bottom surface of the receiving pipe (13), and a spray head (15) is installed at the bottom end of the conduit (14). A pair of through holes (2) are symmetrically opened on both sides of the housing (1). A first partition plate (21) is inserted into the through hole (2). A first connecting frame (23) is fixed to one end of the first partition plate (21) outside the through hole (2). A first telescopic rod (22) is provided between the first connecting frame (23) and the housing (1), located at the two ends of the through holes (2) on both sides. Each of the two partitions (21) has a clearance groove on one side that cooperates with the conduit (14). When the two first partitions (21) are connected, the clearance grooves of the two first partitions (21) and the conduit (14) are in contact with each other, and the two first partitions (21) after connection isolate the internal space of the shell (1) into upper and lower layers. An air inlet (3) is provided on the side of the shell (1) and below the through hole (2). A rectangular tube (31) is inserted into the air inlet (3). An air inlet pipe is connected through the side of the rectangular tube (31). A second partition (32) is inserted through the top surface of the rectangular tube (31). A second telescopic rod (33) is provided on the top surface of the second partition (32). The second telescopic rod (33) is installed on the shell (1). The bottom surface of the spray head (15) is provided with a connecting rod, and the bottom end of the connecting rod is fixedly connected to an air cylinder (4). The air cylinder (4) is provided with a support frame (41), and the bottom surface of the support frame (41) is provided with a motor (42). The top end of the output end of the motor (42) is fixedly connected to a rotating shaft (43), and the surface of the rotating shaft (43) is provided with fan blades (44). The opening of the air cylinder (4) points to the bottom surface of the spray head (15). The bottom surface of the support frame (41) is provided with an isolation cover (45). The isolation cover (45) sleeves the motor (42). The isolation cover (45) works with the support frame (41) to isolate the outer shell of the motor (42) from the internal space of the housing (1). The output end of the motor (42) passes through the isolation cover (45). The bottom surface of the isolation cover (45) is connected to a heat dissipation pipe (46), and the bottom end of the heat dissipation pipe (46) extends to the outside of the shell (1).

2. The strip steel production waste gas treatment device according to claim 1, characterized in that: The first partition (21) is provided with a rubber pad at one end of the housing (1).

3. The strip steel production waste gas treatment device according to claim 1, characterized in that: The first partition (21) is fitted with a rubber sleeve (24) at one end outside the housing (1), and the other end of the rubber sleeve (24) is fixed to the surface of the housing (1); the through hole (2) is sealed by the first partition (21) and the rubber sleeve (24).

4. The strip steel production waste gas treatment device according to claim 1, characterized in that: A third telescopic rod (5) is provided on the side of the housing (1). A second connecting frame (51) is provided at the output end of the third telescopic rod (5). A guide rod (511) is fixedly connected to the end of the second connecting frame (51) away from the third telescopic rod (5). The guide rod (511) extends into the interior of the housing (1), and a scraper (52) is provided at one end inside the housing (1). When the scraper (52) moves, its top end contacts the bottom surface of the first partition (21), and its side side contacts the inner wall of the housing (1).

5. The strip steel production waste gas treatment device according to claim 4, characterized in that: The housing (1) is provided with a baffle plate (53) inside. The top surface of the baffle plate (53) is uniformly provided with multiple protrusions. The scraper (52) is elastic and is intermittently blocked by the protrusions during its movement, causing deformation.

6. The strip steel production waste gas treatment device according to claim 1, characterized in that: The bottom surface of the spray head (15) is provided with a connecting pipe (6), and the surface of the connecting pipe (6) is uniformly provided with multiple through holes.

7. The strip steel production waste gas treatment device according to claim 1, characterized in that: The housing (1) has a pair of pressure relief holes (7) on both sides based on central symmetry. A pressure relief cylinder (71) is inserted into the pressure relief hole (7). A pressure relief plate (73) is slidably connected inside the pressure relief cylinder (71). A fourth telescopic rod (72) is installed at the opening of the pressure relief cylinder (71). Initially, the output end of the fourth telescopic rod (72) is not in contact with the pressure relief plate (73). There is friction between the pressure relief plate (73) and the pressure relief cylinder (71).

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