Reheating type coke oven combustion exchange shutter for VOCs waste gas treatment

Abstract

The invention discloses a recuperative coke oven combustion exchange shutter for VOCs waste gas treatment, which comprises a valve body, a gas inlet box and a mixing box, an opening and closing piece is arranged in the valve body, the gas inlet box is connected with the valve body, a gas inlet piece and a gas inlet pipe are arranged on the gas inlet box, the gas inlet piece is arranged on the top of the gas inlet box, and the mixing box is arranged on the gas inlet pipe. The air inlet pipe is arranged on one side of the bottom of the air inlet box, the mixing box is arranged on one side of the air inlet box, the mixing box is connected with the air inlet box, and a spoiler is arranged in the mixing box. Through the linkage structure of the gas inlet piece and the opening and closing piece, the inlet flow of VOCs waste gas and air can be accurately adjusted, accurate control over the proportion of mixed gas in the gas inlet box is achieved, and therefore it is guaranteed that the efficient and stable purification efficiency and treatment quality of the VOCs waste gas are kept in the treatment process.

Description

Technical Field

[0001] This invention belongs to the field of waste gas treatment technology, and specifically relates to an exchange switch for reheat coke oven combustion in VOCs waste gas treatment. Background Technology

[0002] With increasingly stringent energy conservation and environmental protection requirements for coke ovens, the trend towards larger and more automated coke ovens is evident. The adjustable capacity and automatic control level of coke oven heating systems are crucial for reducing coking energy consumption and VOC emissions. Currently, large-scale integrated iron and steel enterprises mostly use reheating coke ovens, which are coke ovens that can be heated using both coke oven gas and lean coal gas (blast furnace gas).

[0003] A search revealed that patent application number 202223432408.5 discloses a reheating coke oven system, including a mixed gas supply unit, a coke oven gas supply unit, an exhaust gas switch, and a coke oven body. The exhaust gas supply unit is directly connected to the exhaust gas switch. When the coke oven is heated with mixed gas, the coke oven gas supply unit and the exhaust gas supply unit are closed, while the mixed gas supply unit is opened. The mixed gas enters the gas regenerator chamber through the exhaust gas switch, and air enters the air regenerator chamber through the damper of the exhaust gas switch. The two gases enter the bottom and upper middle parts of the vertical flue for combustion heating, respectively. When the coke oven is heated with coke oven gas, the coke oven gas supply unit is opened, cutting off the gas supply to the mixed gas supply unit. The exhaust gas supply unit is opened, and air enters the air regenerator chamber through the damper of the exhaust gas switch, while the exhaust gas enters the gas regenerator chamber through the exhaust gas supply unit.

[0004] A search revealed that Chinese Patent Application No. 202110528022.5 discloses a method for regulating a reheating multi-stage coke oven heating system. When using coke oven gas for heating, blast furnace gas is stopped from being supplied. The coke oven gas enters the vertical flue through the bottom gas outlet one via the pipe brick channel. Combustion air is introduced through a waste gas switch and enters the lower part of the vertical flue through rising airflow regenerator A and rising airflow regenerator B. The waste gas generated from combustion enters the distribution flue through the descending airflow regenerator. When using blast furnace gas for heating, the coke oven gas is stopped from being supplied. The blast furnace gas reaches the bottom of the vertical flue through rising airflow regenerator B and enters the vertical flue through bottom gas outlet two. Air enters the vertical flue after passing through rising airflow regenerator A. The two gases mix and burn within the vertical flue, and the waste gas generated enters the distribution flue through the descending airflow regenerator.

[0005] Both of the above-mentioned reheating coke oven heating systems involve exhaust gas switches, but do not describe the specific structure of the exhaust gas switches, or rather, they use conventional exhaust gas switches. The installation accuracy of the exchange drive pull bar of the exhaust gas switch in the traditional reheating coke oven is low, and the airflow is difficult to be accurately adjusted by the exhaust gas chuck and the opening of the air damper. Additional adjustment methods must be added, which makes it difficult to meet the requirements of the coke oven heating system to accurately adjust the airflow through the exhaust gas switch. Summary of the Invention

[0006] The purpose of this invention is to overcome the shortcomings of the prior art and provide an exchange switch for reheating coke oven combustion in VOCs waste gas treatment. This device, through the linkage structure of the air inlet and the switch, can accurately adjust the inflow rate of VOCs waste gas and air, and achieve precise control of the mixed gas ratio in the air inlet box, thereby ensuring that the VOCs waste gas maintains high and stable purification efficiency and treatment quality during the treatment process.

[0007] To achieve the above objectives, the technical solution adopted by the present invention is as follows: An exchange switch for reheating coke oven combustion in VOCs waste gas treatment includes a valve body, an air inlet box, and a mixing box. An opening and closing element is provided inside the valve body. The air inlet box is connected to the valve body. An air inlet component and an air inlet pipe are provided on the air inlet box. The air inlet component is located at the top of the air inlet box and is connected to the opening and closing element. The air inlet pipe is located on one side of the bottom of the air inlet box. The mixing box is located on one side of the air inlet box and is connected to the air inlet box. A turbulence-inducing element is provided inside the mixing box.

[0008] Preferably, the opening and closing component includes a sealing plate, a blocking plate, a rotating shaft, a first sleeve shaft, a driving component, and a lifting component. An installation cavity is provided on the valve body. The sealing plate is located at the bottom of the installation cavity and has several first through holes evenly distributed on it. The rotating shaft is rotatably mounted in the middle of the sealing plate. The first sleeve shaft is mounted on the rotating shaft and is slidably connected to it. The blocking plate is fixedly mounted on the first sleeve shaft. The blocking plate has several sealing gaskets that mate with the first through holes, and also has several sealing gaskets that mate with the first through holes. The second through hole, the lifting member is located on the top of the valve body, the lifting member cooperates with the first set of shafts, the driving member is located on the top of the valve body, and the driving member cooperates with the rotating shaft. The sealing plate can block the first through hole on the sealing plate to prevent exhaust gas from entering the air intake box through the valve body when closed. With the cooperation of the lifting member, the driving member, the rotating shaft and the first set of shafts, the sealing plate can be driven to rotate around the middle of the sealing plate, thereby adjusting the opening degree of the first through hole on the sealing plate, which facilitates the control of the intake volume of exhaust gas.

[0009] Preferably, the driving component includes a fixed frame, a first motor, a first pulley, a second pulley, a V-belt, a first bevel gear, a second bevel gear, and a rotating shaft. The fixed frame is fixedly mounted on the top of the valve body, and the rotating shaft is rotatably mounted on the fixed frame. The first bevel gear is fixedly mounted on the rotating shaft, and the second bevel gear is fixedly mounted on the rotating shaft, meshing with each other. The first motor is located on the top of the fixed frame, the first pulley is fixedly mounted on the output shaft of the first motor, and the second pulley is fixedly mounted on the rotating shaft. The second pulley is connected to the first pulley via a V-belt. It can drive the rotating shaft and the first set of shafts to rotate, thereby driving the sealing plate to rotate, so as to adjust the opening degree of the first through hole. The first motor drives the first pulley to rotate, the first pulley drives the second pulley to rotate through the V-belt, the second pulley drives the rotating shaft to rotate, the rotating shaft drives the first bevel gear to rotate, the first bevel gear meshes with the second bevel gear, the first bevel gear rotates, the second bevel gear rotates, the rotating shaft rotates, the rotating shaft rotates, the first set of shafts rotates, the first set of shafts rotates, and the sealing plate rotates, ultimately achieving the purpose of regulating the intake volume.

[0010] Preferably, the lifting component includes a fixed base, a lifting rod, a gripping rod, a rotating ring, and a first spring. The fixed base is fixedly installed on the top of the valve body. The lifting rod is symmetrically arranged on both sides of the fixed base and rotatably installed on the fixed base. A strip-shaped hole is opened in the middle of the lifting rod, and a sliding block is provided in the strip-shaped hole. An installation groove is opened on the first shaft, and the rotating ring is rotatably installed in the installation groove. Fixed shafts are provided on both sides of the rotating ring, and the fixed shafts are connected to the sliding block. The first spring is sleeved on the rotating shaft and is located between the first shaft and the second bevel gear. The gripping rod is fixedly installed at the end of the lifting rod. The lifting component can lift the sealing gasket on the sealing plate from the first through hole on the sealing plate. With the action of the driving component, the sealing plate can be rotated, gradually increasing the air volume of the first through hole, thereby achieving the purpose of regulating the air intake.

[0011] Preferably, a protrusion is provided on the inner wall of the first shaft and a groove is provided on the rotating shaft. The protrusion and the groove are slidably engaged to ensure that the first shaft can rotate during the rotation of the rotating shaft, thereby facilitating the adjustment of the sealing plate and ultimately achieving the control of the air intake volume.

[0012] Preferably, the lifting component further includes an arc-shaped plate, a support rod, a fixed rod, a limiting post, and a limiting member. The arc-shaped plate is symmetrically arranged at both ends of the fixed rod, and the center of the arc-shaped plate coincides with the installation point of the lifting rod at the fixed seat. The two ends of the limiting post are fixedly installed on the arc-shaped plate. The limiting member is arranged on the lifting rod and cooperates with the limiting post. The arc-shaped plate can guide the movement of the lifting rod, and the cooperation between the limiting post and the limiting member can limit the lifting rod, ensuring that the lifting rod is always in a stable state during operation.

[0013] Preferably, the limiting component includes a mounting rod, a guide rod, a limiting rod, a second spring, a moving block, a vertical plate, and a limiting plate. The two ends of the mounting rod are respectively fixedly mounted on the lifting rods on both sides of the fixed base. The two ends of the guide rod are respectively fixedly mounted on the mounting rod and the gripping rod. The limiting rods are symmetrically arranged on both sides of the guide rod, and their two ends are respectively fixedly mounted on the mounting rod and the gripping rod. The moving block is slidably mounted on the guide rod and the limiting rod. The second spring is sleeved on the guide rod and is located between the moving block and the gripping rod. The vertical plate is vertically mounted on the top of the moving block, and the limiting plate is inclined. Installed downwards on the top of the upright plate, the limiting component restricts the rotation of the lifting rod. Pushing the gripping rod causes the lifting rod to rotate around the connection between the lifting rod and the fixed base until the limiting plate contacts the limiting post. Continuing to push the gripping rod upwards, under the action of the limiting post, will cause the limiting plate to move along the guide rod towards the side closer to the gripping rod. When the gap between the limiting plate and the moving block mates with the limiting post, the second spring will cause the moving block to reset. The reset of the moving block will cause the limiting post to move to the connection between the upright plate and the limiting plate, thereby limiting the position of the limiting post and ensuring that the lifting rod remains stable during operation.

[0014] Preferably, the air intake component includes a vertical rod, a threaded rod, a guide rod, a push-pull block, a push-pull rod, a cover plate, and a fixing tube. The vertical rods are symmetrically arranged on both sides of the top of the air intake box. The threaded rod is rotatably mounted on the vertical rod and connected to a rotating shaft. The guide rod is located above the threaded rod, and its two ends are fixedly connected to the vertical rods on both sides of the air intake box. The push-pull block is threadedly connected to the threaded rod and slidably engaged with the guide rod. The fixing tube is fixedly mounted on the top of the air intake box. One end of the cover plate is rotatably mounted on the fixing tube. The two ends of the push-pull rod are rotatably connected to the push-pull block and the cover plate, respectively. To control air intake, the threaded rod, push-pull block, and push-pull rod are designed to pull up one end of the cover plate, allowing air to enter the intake box from the fixed pipe. The first motor drives the first pulley to rotate, which in turn drives the second pulley to rotate via a V-belt. The rotation of the second pulley drives the shaft to rotate, which in turn drives the threaded rod to rotate. The rotation of the threaded rod drives the push-pull block to move, which in turn pulls one end of the push-pull rod to move. The other end of the push-pull rod causes the cover plate to rotate around the connection between the cover plate and the fixed pipe, allowing air to enter the intake box through the gap between the cover plate and the fixed pipe.

[0015] Preferably, a guide plate is also provided at the bottom of the cover plate. The guide plate has a fan-shaped structure, and the center of the guide plate coincides with the position where the cover plate is installed on the fixed pipe. An air inlet groove is opened on the guide plate. The air inlet groove on the guide plate can guide the gas entering the air inlet box, so as to facilitate the initial mixing of the air entering the air inlet box with the VOCs exhaust gas.

[0016] Preferably, a first guide plate and a second guide plate are provided inside the air intake box. The bottom of the first guide plate is fixedly installed on the bottom wall of the air intake box and is inclined upward. The second guide plate is provided on the top wall of the air intake box and is inclined downward. The first guide plate and the second guide plate are provided to guide the gas entering the air intake box, and can also perform preliminary mixing of VOCs exhaust gas and air entering the air intake box, so as to ensure the mixing quality and mixing efficiency of the gas.

[0017] Preferably, the aerodynamic component includes a second motor, a fixed housing, a spoiler frame, a spoiler plate, a mounting shaft, and a second set of shafts. The mounting shaft is rotatably mounted on the center line of the mixing chamber, the second set of shafts is rotatably mounted on the mounting shaft, the spoiler frame is fixedly mounted on the second set of shafts, the spoiler plate is disposed inside the spoiler frame and fixedly mounted on the mounting shaft, both the mounting shaft and the second set of shafts extend through the mixing chamber to the outside of the mixing chamber, the fixed housing is fixedly mounted on the outside of the mixing chamber, and a third bevel gear and a fourth bevel gear are disposed inside the fixed housing. The second motor is fixedly mounted on the bottom of the fixed housing, and the third bevel gear is fixedly mounted on the second motor. On the output shaft, the fourth bevel gear is symmetrically arranged on both sides of the third bevel gear and meshes with the third bevel gear. The fourth bevel gears arranged on both sides of the third bevel gear are respectively fixedly installed on the mounting shaft and the second set of shafts. When the second motor is started, it drives the third bevel gear to rotate. The third bevel gear meshes with the fourth bevel gear, and the third bevel gear drives the fourth bevel gear to rotate. The rotation of the fourth bevel gear will drive the mounting shaft and the second set of shafts to rotate. The rotation of the mounting shaft and the second set of shafts will drive the baffle frame and the baffle plate to rotate in the opposite direction. During the rotation of the baffle frame and the baffle plate, the gas passing through the mixing box can be mixed, ensuring the mixing quality of the gas.

[0018] The beneficial effects of this invention are: 1) This device, through the linkage structure of the air inlet and the opening and closing parts, can precisely adjust the inflow rate of VOCs waste gas and air, and achieve precise control of the mixed gas ratio in the air inlet box, thereby ensuring that the VOCs waste gas maintains high and stable purification efficiency and treatment quality during the treatment process.

[0019] 2) The sealing plate of this device can block the first through hole on the sealing plate to prevent exhaust gas from entering the air inlet box through the valve body when the device is closed. With the cooperation of the lifting component, the driving component, the rotating shaft and the first set of shafts, the sealing plate can be driven to rotate around the middle of the sealing plate, thereby adjusting the opening and closing degree of the first through hole on the sealing plate and facilitating the control of the intake volume of exhaust gas.

[0020] 3) The drive mechanism of this device can drive the rotating shaft and the first set of shafts to rotate, thereby driving the sealing plate to rotate, which serves to adjust the opening degree of the first through hole. The first motor drives the first pulley to rotate, and the rotation of the first pulley drives the second pulley to rotate through the V-belt. The rotation of the second pulley drives the rotating shaft to rotate, and the rotation of the rotating shaft drives the first bevel gear to rotate. The first bevel gear meshes with the second bevel gear, and the rotation of the first bevel gear drives the second bevel gear to rotate. The rotation of the second bevel gear drives the rotating shaft to rotate, and the rotation of the rotating shaft drives the first set of shafts to rotate. The rotation of the first set of shafts drives the sealing plate to rotate, ultimately achieving the purpose of regulating the intake air volume.

[0021] 4) The lifting component of this device can lift the sealing gasket on the sealing plate from the first through hole on the sealing plate. In conjunction with the driving component, the sealing plate can be rotated to gradually increase the air volume of the first through hole, thereby achieving the purpose of regulating the air intake.

[0022] 5) The protrusion and groove of this device slide together to ensure that the first set of shafts can be driven to rotate during the rotation of the rotating shaft, thereby facilitating the adjustment of the sealing plate and ultimately achieving the control of the air intake volume.

[0023] 6) The arc-shaped plate of this device can guide the movement of the lifting rod, and the cooperation of the limiting post and the limiting component can limit the lifting rod, ensuring that the lifting rod is always in a stable state during operation.

[0024] 7) The limiting component of this device can restrict the rotation of the lifting rod. Pushing the gripping rod causes the lifting rod to rotate around the connection between the lifting rod and the fixed base until the limiting plate contacts the limiting post. Continuing to push the gripping rod upwards will cause the limiting plate to move along the guide rod towards the side closer to the gripping rod under the action of the limiting post. When the gap between the limiting plate and the moving block matches the limiting post, the moving block will be reset under the action of the second spring. The reset of the moving block will cause the limiting post to move to the connection between the upright plate and the limiting plate, thereby achieving the purpose of limiting the limiting post and ensuring that the lifting rod is always in a stable state during operation.

[0025] 8) The air intake components of this device are designed to control the entry of air. The threaded rod, push-pull block, and push-pull rod can pull up one end of the cover plate, thus facilitating the entry of air from the fixed pipe into the air intake box. The first motor drives the first pulley to rotate, and the first pulley drives the second pulley to rotate via a V-belt. The rotation of the second pulley drives the shaft to rotate, and the rotation of the shaft drives the threaded rod to rotate. The rotation of the threaded rod drives the push-pull block to move, and the movement of the push-pull block pulls one end of the push-pull rod to move. The other end of the push-pull rod drives the cover plate to rotate around the connection between the cover plate and the fixed pipe, and air enters the air intake box through the gap between the cover plate and the fixed pipe.

[0026] 9) The air inlet slots on the air guide plate of this device can guide the gas entering the air inlet box, which facilitates the initial mixing of air and VOCs waste gas in the air inlet box; the first guide plate and the second guide plate are used to guide the gas entering the air inlet box, and at the same time can also initially mix the VOCs waste gas and air in the air inlet box, ensuring the mixing quality and mixing efficiency of the gas.

[0027] 10) When the device starts, the second motor drives the third bevel gear to rotate. The third bevel gear meshes with the fourth bevel gear. The third bevel gear drives the fourth bevel gear to rotate. The rotation of the fourth bevel gear will drive the mounting shaft and the second set of shafts to rotate. The rotation of the mounting shaft and the second set of shafts will drive the baffle frame and the baffle plate to rotate in the opposite direction. During the rotation of the baffle frame and the baffle plate, the gas passing through the mixing box can be mixed, ensuring the mixing quality of the gas. Attached Figure Description

[0028] Appendix Figure 1 This is a schematic diagram of the structure of the present invention. Figure 1 .

[0029] Appendix Figure 2 This is a schematic diagram of the structure of the present invention. Figure 2 .

[0030] Appendix Figure 3 This is a schematic diagram of the installation structure of the opening and closing component in this invention.

[0031] Appendix Figure 4 This is a schematic diagram of the mounting structure of the groove and protrusion of the present invention.

[0032] Appendix Figure 5 This is a schematic diagram of the installation structure of the driving component in this invention.

[0033] Appendix Figure 6 This is a schematic diagram of the installation structure of the lifting component in this invention.

[0034] Appendix Figure 7 This is a schematic diagram of the installation structure of the arc-shaped plate and the fixed column in this invention.

[0035] Appendix Figure 8 This is a schematic diagram of the limiting component in this invention.

[0036] Appendix Figure 9 This is a schematic diagram of the air intake component in this invention.

[0037] Appendix Figure 10 This is a schematic diagram of the air intake groove in this invention.

[0038] Appendix Figure 11 This is a schematic diagram of the installation structure of the baffle in this invention.

[0039] Appendix Figure 12 This is a schematic diagram of the structure of the turbulence-disrupting component in this invention.

[0040] In the picture: 1. Valve body; 101. Mounting cavity; 2. Opening and closing components; 201. Driving components; 202. First set of shafts; 203. Sealing plate; 204. Sealing plate; 205. Rotating shaft; 206. Groove; 207. First through hole; 208. Protrusion; 209. Sealing gasket; 2010. Mounting groove; 2011, First motor; 2012, First pulley; 2013, V-belt; 2014, Second pulley; 2015, Shaft; 2016, Fixing frame; 2017, Second bevel gear; 2018, First bevel gear; 2019, Second through hole; 3. Lifting component; 301. Fixed base; 302. Rotating ring; 303. First spring; 304. Limiting component; 305. Lifting rod; 306. Grip rod; 307. Strip hole; 308. Sliding block; 309. Fixed shaft; 3010. Support rod; 3011. Fixed rod; 3012. Limiting post; 3013. Arc plate; 3014. Mounting rod; 3015. Limiting rod; 3016. Second spring; 3017. Guide rod; 3018. Vertical plate; 3019. Limiting plate; 3020. Moving block; 4. Air intake box; 401. First guide plate; 402. Second guide plate; 5. Air intake components; 501. Cover plate; 502. Air guide plate; 503. Upright pole; 504. Threaded rod; 505. Guide rod; 506. Push-pull block; 507. Push-pull rod; 508. Fixing pipe; 509. Air intake slot; 6. Spoiler component; 601. Fixed housing; 602. Second motor; 603. Third bevel gear; 604. Fourth bevel gear; 605. Spoiler frame; 606. Second shaft; 607. Spoiler plate; 608. Mounting shaft; 7. Mixing box; 8. Air intake pipe. Detailed Implementation

[0041] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0042] In the description of this invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this invention, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0043] like Figure 1 , Figure 2 As shown, an exchange switch for reheating coke oven combustion in VOCs waste gas treatment includes a valve body 1, an air inlet box 4, and a mixing box 7. An opening and closing element 2 is provided inside the valve body 1. The opening and closing element 2 can open and close the valve body 1, thereby controlling the entry of VOCs waste gas.

[0044] The air inlet box 4 is connected to the valve body 1 and is used to transport VOCs waste gas from the valve body 1 to the air inlet box 4 to ensure the treatment efficiency and quality of VOCs waste gas.

[0045] An air intake component 5 and an air intake pipe 8 are provided on the air intake box 4. The air intake component 5 is located on the top of the air intake box 4 and is connected to the opening and closing component 2. The air intake pipe 8 is located on one side of the bottom of the air intake box 4. The air intake component 5 can block the air intake box 4, thereby controlling the air entering the air intake box 4.

[0046] The mixing box 7 is located on one side of the air inlet box 4 and is connected to the air inlet box 4. A baffle 6 is provided inside the mixing box 7. The mixing box 7 is designed to facilitate the full mixing of VOCs waste gas and air, ensuring the treatment efficiency and quality of VOCs waste gas.

[0047] In this embodiment, as Figure 3 , Figure 4 As shown, the opening and closing component 2 includes a sealing plate 203, a blocking plate 204, a rotating shaft 205, a first set of shafts 202, a driving component 201, and a lifting component 3. An installation cavity 101 is provided on the valve body 1. The installation cavity 101 facilitates the installation of the sealing plate 203 and the blocking plate 204 and ensures the normal operation of the sealing plate 203 and the blocking plate 204.

[0048] The sealing plate 203 is disposed at the bottom of the mounting cavity 101. A plurality of first through holes 207 are evenly opened on the sealing plate 203. The rotating shaft 205 is rotatably mounted in the middle of the sealing plate 203. The first set of shafts 202 is mounted on the rotating shaft 205 and is slidably connected to the rotating shaft 205. The sealing plate 204 is fixedly mounted on the first set of shafts 202. A plurality of sealing gaskets 209 are provided on the sealing plate 204 to cooperate with the first through holes 207 on the sealing plate 204. The sealing gaskets 209 are used to seal the first through holes 207 to ensure that the valve body 1 can be closed when air intake is not required.

[0049] In this embodiment, as Figure 4 As shown, the sealing plate 204 also has several second through holes 2019 that cooperate with the first through hole 207. The greater the overlap between the first through hole 207 and the second through hole 2019, the greater the inflow of VOCs exhaust gas, thereby achieving precise control of the inflow of VOCs exhaust gas.

[0050] The lifting member 3 is located on the top of the valve body 1 and cooperates with the first shaft 202. The driving member 201 is located on the top of the valve body 1 and cooperates with the rotating shaft 205. The sealing plate 204 can block the first through hole 207 on the sealing plate 203 to prevent exhaust gas from entering the air intake box 4 through the valve body 1 when the valve is closed.

[0051] With the cooperation of the lifting component 3, the driving component 201, the rotating shaft 205 and the first set of shafts 202, the sealing plate 204 can be driven to rotate around the middle of the sealing plate 203, thereby adjusting the opening degree of the first through hole 207 on the sealing plate 203, which facilitates the control of the intake volume of exhaust gas.

[0052] In this embodiment, as Figure 5As shown, the driving component 201 includes a fixed frame 2016, a first motor 2011, a first pulley 2012, a second pulley 2014, a V-belt 2013, a first bevel gear 2018, a second bevel gear 2017, and a rotating shaft 2015. The fixed frame 2016 is fixedly mounted on the top of the valve body 1, and the rotating shaft 2015 is rotatably mounted on the fixed frame 2016. The first bevel gear 2018 is fixedly mounted on the rotating shaft 2015, and the second bevel gear 2017 is fixedly mounted on the rotating shaft 2015. The first bevel gear 2018 and the second bevel gear 2017 are connected to the rotating shaft 2015. Two bevel gears 2017 mesh with each other. The first motor 2011 is mounted on the top of the fixed frame 2016. The first pulley 2012 is fixedly mounted on the output shaft of the first motor 2011. The second pulley 2014 is fixedly mounted on the rotating shaft 2015. The second pulley 2014 is connected to the first pulley 2012 through a V-belt 2013. The driving component 201 can drive the rotating shaft 205 and the first set of shafts 202 to rotate, thereby driving the sealing plate 204 to rotate, so as to adjust the opening degree of the first through hole 207.

[0053] The first motor 2011 drives the first pulley 2012 to rotate. The rotation of the first pulley 2012 drives the second pulley 2014 to rotate via the V-belt 2013. The rotation of the second pulley 2014 drives the rotating shaft 2015 to rotate. The rotation of the rotating shaft 2015 drives the first bevel gear 2018 to rotate. The first bevel gear 2018 meshes with the second bevel gear 2017. The rotation of the first bevel gear 2018 drives the second bevel gear 2017 to rotate. The rotation of the second bevel gear 2017 drives the rotating shaft 205 to rotate. The rotation of the rotating shaft 205 drives the first set of shafts 202 to rotate. The rotation of the first set of shafts 202 drives the sealing plate 204 to rotate, ultimately achieving the purpose of regulating the intake air volume.

[0054] In this embodiment, as Figure 6As shown, the lifting component 3 includes a fixed base 301, a lifting rod 305, a gripping rod 306, a rotating ring 302, and a first spring 303. The fixed base 301 is fixedly installed on the top of the valve body 1. The lifting rod 305 is symmetrically arranged on both sides of the fixed base 301 and is rotatably mounted on the fixed base 301. A strip-shaped hole 307 is opened in the middle of the lifting rod 305, and a sliding block 308 is provided in the strip-shaped hole 307. A mounting groove 2010 is opened on the first sleeve shaft 202, and the rotating ring 302 is rotatably mounted in the mounting groove 2010. A first spring 303 is provided on both sides of the rotating ring 302. A fixed shaft 309 is provided, which is connected to a sliding block 308. The first spring 303 is sleeved on the rotating shaft 205 and is located between the first shaft 202 and the second bevel gear 2017. The gripping rod 306 is fixedly installed at the end of the lifting rod 305. The lifting member 3 can lift the sealing gasket 209 on the sealing plate 204 from the first through hole 207 on the sealing plate 203. With the action of the driving member 201, the sealing plate 204 can be rotated, gradually increasing the air volume of the first through hole 207, thereby achieving the purpose of regulating the air intake.

[0055] In this embodiment, as Figure 4 As shown, a protrusion 208 is provided on the inner wall of the first set of shafts 202, and a groove 206 is provided on the rotating shaft 205. The protrusion 208 and the groove 206 are slidably engaged to ensure that the rotating shaft 205 can drive the first set of shafts 202 to rotate during rotation, thereby facilitating the adjustment of the sealing plate 204 and ultimately achieving the control of the air intake volume.

[0056] In this embodiment, as Figure 7 As shown, the lifting component 3 also includes an arc-shaped plate 3013, a support rod 3010, a fixing rod 3011, a limiting post 3012, and a limiting component 304. The arc-shaped plate 3013 is symmetrically arranged at both ends of the fixing rod 3011. The center of the arc-shaped plate 3013 coincides with the installation point of the lifting rod 305 at the fixing seat 301. The arc-shaped plate 3013 can guide the movement of the lifting rod 305.

[0057] The two ends of the limiting post 3012 are fixedly installed on the arc plate 3013. The limiting member 304 is set on the lifting rod 305 and the limiting member 304 cooperates with the limiting post 3012. The cooperation between the limiting post 3012 and the limiting member 304 can limit the lifting rod 305 and ensure that the lifting rod 305 is always in a stable state during the operation.

[0058] In this embodiment, as Figure 8As shown, the limiting component 304 includes a mounting rod 3014, a guide rod 3017, a limiting rod 3015, a second spring 3016, a moving block 3020, a vertical plate 3018, and a limiting plate 3019. The two ends of the mounting rod 3014 are respectively fixedly mounted on the lifting rods 305 on both sides of the fixed base 301. The two ends of the guide rod 3017 are respectively fixedly mounted on the mounting rod 3014 and the gripping rod 306. The guide rod 3017 is set to guide the moving block 3020 to ensure the normal operation of the moving block 3020.

[0059] The movable block 3020 is slidably mounted on the guide rod 3017 and the limiting rod 3015. The upright plate 3018 is vertically mounted on the top of the movable block 3020. The limiting plate 3019 is inclined downward and mounted on the top of the upright plate 3018. The cooperation of the movable block 3020, the upright plate 3018 and the limiting plate 3019 can fix the movable block 3020 on the limiting post 3012, thereby achieving the purpose of fixing the lifting rod 305 and ensuring that the lifting rod 305 is always in a stable state during operation.

[0060] The second spring 3016 is sleeved on the guide rod 3017 and is located between the moving block 3020 and the gripping rod 306. The second spring 3016 is used to provide power for the movement of the moving block 3020, ensuring that the moving block 3020 always has the force to move towards the limiting post 3012, and ensuring that the limiting plate 3019 always cooperates with the limiting post 3012 during the operation.

[0061] The limiting rods 3015 are symmetrically arranged on both sides of the guide rod 3017, and the two ends of the limiting rods 3015 are respectively fixedly installed on the mounting rod 3014 and the gripping rod 306. The limiting rods 3015 are used to support the moving block 3020, prevent the moving block 3020 from shaking during movement, and ensure the normal operation of the moving block 3020.

[0062] Pushing the gripping rod 306 causes the lifting rod 305 to rotate around the connection between the lifting rod 305 and the fixed base 301 until the limiting plate 3019 contacts the limiting post 3012. Continuing to push the gripping rod 306 upwards will cause the limiting plate 3019 to move along the guide rod 3017 towards the side closer to the gripping rod 306 under the action of the limiting post 3012. When the gap between the limiting plate 3019 and the moving block 3020 matches the limiting post 3012, the moving block 3020 will be reset under the action of the second spring 3016. The reset of the moving block 3020 will cause the limiting post 3012 to move to the connection between the upright plate 3018 and the limiting plate 3019, thereby limiting the limiting post 3012 and ensuring that the lifting rod 305 remains stable during operation.

[0063] In this embodiment, as Figure 9 As shown, the air intake component 5 includes a vertical rod 503, a threaded rod 504, a guide rod 505, a push-pull block 506, a push-pull rod 507, a cover plate 501, and a fixing pipe 508. The vertical rods 503 are symmetrically arranged on both sides of the top of the air intake box 4. The threaded rod 504 is rotatably mounted on the vertical rod 503 and is connected to the rotating shaft 2015. The guide rod 505 is arranged above the threaded rod 504, and its two ends are fixedly connected to the vertical rods 503 on both sides of the air intake box 4. The guide rod 505 can restrict the push-pull block 506 and prevent it from rotating during the movement of the push-pull block 506 following the threaded rod 504, thus ensuring the normal operation of the push-pull block 506.

[0064] The push-pull block 506 is threadedly connected to the threaded rod 504, and the push-pull block 506 is slidably engaged with the guide rod 505. The threaded rod 504 is used to drive the push-pull block 506 to move.

[0065] The fixing pipe 508 is fixedly installed on the top of the air intake box 4. The fixing pipe 508 facilitates the installation of the cover plate 501 and ensures the normal operation of the cover plate 501.

[0066] One end of the cover plate 501 is rotatably mounted on the fixed pipe 508. The two ends of the push-pull rod 507 are rotatably connected to the push-pull block 506 and the cover plate 501, respectively. The air intake component 5 is set to control the entry of air. The threaded rod 504, the push-pull block 506 and the push-pull rod 507 can pull up one end of the cover plate 501, so that air can enter the air intake box 4 from the fixed pipe 508.

[0067] The first motor 2011 drives the first pulley 2012 to rotate. The first pulley 2012 drives the second pulley 2014 to rotate via the V-belt 2013. The rotation of the second pulley 2014 drives the rotating shaft 2015 to rotate. The rotation of the rotating shaft 2015 drives the threaded rod 504 to rotate. The rotation of the threaded rod 504 drives the push-pull block 506 to move. The movement of the push-pull block 506 pulls one end of the push-pull rod 507 to move. The other end of the push-pull rod 507 drives the cover plate 501 to rotate around the connection between the cover plate 501 and the fixed tube 508. Air enters the air intake box 4 through the gap between the cover plate 501 and the fixed tube 508.

[0068] In this embodiment, as Figure 9 , Figure 10As shown, a guide plate 502 is also provided at the bottom of the cover plate 501. The guide plate 502 has a fan-shaped structure, and the center of the guide plate 502 coincides with the position of the cover plate 501 installed on the fixed pipe 508. An air inlet groove 509 is opened on the guide plate 502. The air inlet groove 509 on the guide plate 502 can guide the gas entering the air inlet box 4, so as to facilitate the initial mixing of the air entering the air inlet box 4 with the VOCs exhaust gas.

[0069] In this embodiment, as Figure 9 As shown, a first guide plate 401 and a second guide plate 402 are provided inside the air intake box 4. The bottom of the first guide plate 401 is fixedly installed on the bottom wall of the air intake box 4 and is inclined upward. The second guide plate 402 is provided on the top wall of the air intake box 4 and is inclined downward. The first guide plate 401 and the second guide plate 402 are provided to guide the gas entering the air intake box 4, and can also perform preliminary mixing of VOCs exhaust gas and air entering the air intake box 4, ensuring the mixing quality and mixing efficiency of the gas.

[0070] In this embodiment, as Figure 11 , Figure 12 As shown, the turbulence-disrupting component 6 includes a second motor 602, a fixed housing 601, a turbulence-disrupting frame 605, a turbulence-disrupting plate 607, a mounting shaft 608, and a second set of shafts 606. The mounting shaft 608 is rotatably mounted on the center line of the mixing chamber 7, and the second set of shafts 606 is rotatably mounted on the mounting shaft 608. The turbulence-disrupting frame 605 is fixedly mounted on the second set of shafts 606. The turbulence-disrupting plate 607 is disposed inside the turbulence-disrupting frame 605 and is fixedly mounted on the mounting shaft 608. The arrangement of the turbulence-disrupting frame 605 and the turbulence-disrupting plate 607 can turbulentize the gas to ensure that the VOCs exhaust gas can be fully mixed with the air entering the intake chamber 4, thereby improving the treatment efficiency and treatment quality of the VOCs exhaust gas.

[0071] The mounting shaft 608 and the second set of shafts 606 both penetrate the mixing box 7 and extend to the outside of the mixing box 7. The fixing shell 601 is fixedly installed on the outside of the mixing box 7. The fixing shell 601 is provided with a third bevel gear 603 and a fourth bevel gear 604 inside the fixing shell 601. The fixing shell 601 is used to protect the third bevel gear 603 and the fourth bevel gear 604 to prevent impurities from falling onto the teeth of the third bevel gear 603 and the fourth bevel gear 604 and affecting the normal operation of the third bevel gear 603 and the fourth bevel gear 604.

[0072] The second motor 602 is fixedly installed at the bottom of the fixed housing 601. The third bevel gear 603 is fixedly installed on the output shaft of the second motor 602. The fourth bevel gear 604 is symmetrically arranged on both sides of the third bevel gear 603 and meshes with the third bevel gear 603. The fourth bevel gear 604 arranged on both sides of the third bevel gear 603 is fixedly installed on the mounting shaft 608 and the second set of shafts 606, respectively. The second motor 602 is used to provide power for the rotation of the third bevel gear 603, ensuring that the third bevel gear 603 can drive the fourth bevel gear 604 to rotate, thereby driving the baffle 607 and the baffle frame 605 on the mounting shaft 608 and the second set of shafts 606 to rotate, so as to achieve the purpose of turbulent mixing of the gas flowing through the mixing box 7.

[0073] The second motor 602 is started, which drives the third bevel gear 603 to rotate. The third bevel gear 603 meshes with the fourth bevel gear 604. The third bevel gear 603 drives the fourth bevel gear 604 to rotate. The rotation of the fourth bevel gear 604 will drive the mounting shaft 608 and the second set of shafts 606 to rotate. The rotation of the mounting shaft 608 and the second set of shafts 606 will drive the spoiler frame 605 and the spoiler plate 607 to rotate in the opposite direction. During the rotation of the spoiler frame 605 and the spoiler plate 607, the gas passing through the mixing box 7 can be mixed, ensuring the mixing quality of the gas.

[0074] Its working process is as follows: When VOCs exhaust gas and air need to be input, push the gripping rod 306 to drive the lifting rod 305 to rotate around the connection between the lifting rod 305 and the fixed seat 301. During the upward rotation of the lifting rod 305, the sliding block 308 and the rotating ring 302 will move upward. The upward movement of the rotating ring 302 will drive the first set of shafts 202 to move upward. The upward movement of the first set of shafts 202 will drive the sealing plate 204 to move upward until the sealing gasket 209 at the bottom of the sealing plate 204 is pulled out from the first through hole 207.

[0075] The first motor 2011 is started, which drives the first pulley 2012 to rotate. The first pulley 2012 drives the second pulley 2014 to rotate via the V-belt 2013. The rotation of the second pulley 2014 drives the rotating shaft 2015 to rotate. The rotation of the rotating shaft 2015 drives the first bevel gear 2018 to rotate. The first bevel gear 2018 meshes with the second bevel gear 2017. The rotation of the first bevel gear 2018 drives the second bevel gear 2017 to rotate. The rotation of the second bevel gear 2017 drives the rotating shaft 205 to rotate. Due to the mutual cooperation of the groove 206 and the protrusion 208, the rotation of the rotating shaft 205 drives the first set of shafts 202 to rotate. The rotation of the first set of shafts 202 drives the sealing plate 204 to rotate, so that the second through hole 2019 on the sealing plate 204 gradually overlaps with the first through hole 207 on the sealing plate 203, thereby delivering VOCs exhaust gas into the valve body 1.

[0076] At the same time, the rotation of the shaft 2015 will drive the threaded rod 504 to rotate, the rotation of the threaded rod 504 will drive the push-pull block 506 to move, the movement of the push-pull block 506 will pull one end of the push-pull rod 507 to move, and the other end of the push-pull rod 507 will drive the cover plate 501 to rotate around the connection between the cover plate 501 and the fixed tube 508, and air will enter the air intake box 4 through the gap between the cover plate 501 and the fixed tube 508.

[0077] The above description is merely an example and illustration of the structure of the present invention. Those skilled in the art can make various modifications or additions to the specific embodiments described or use similar methods to replace them, as long as they do not deviate from the scope defined by the structure of the present invention, they should all fall within the protection scope of the present invention.

Claims

1. An exchange switch for reheating coke oven combustion in VOCs waste gas treatment, comprising a valve body, an inlet box, and a mixing box, characterized in that, An opening and closing component is provided inside the valve body. The air intake box is connected to the valve body. An air intake component and an air intake pipe are provided on the air intake box. The air intake component is located at the top of the air intake box and is connected to the opening and closing component. The air intake pipe is located on one side of the bottom of the air intake box. The mixing box is located on one side of the air intake box and is connected to the air intake box. A baffle is provided inside the mixing box.

2. The exchange switch for a reheating coke oven combustion system for VOCs waste gas treatment according to claim 1, characterized in that, The opening and closing component includes a sealing plate, a blocking plate, a rotating shaft, a first set of shafts, a driving component, and a lifting component. An installation cavity is provided on the valve body. The sealing plate is located at the bottom of the installation cavity and has several first through holes evenly distributed on it. The rotating shaft is rotatably mounted in the middle of the sealing plate. The first set of shafts is mounted on the rotating shaft and is slidably connected to it. The blocking plate is fixedly mounted on the first set of shafts and has several sealing gaskets that mate with the first through holes. The blocking plate also has several second through holes that mate with the first through holes. The lifting component is located at the top of the valve body and mates with the first set of shafts. The driving component is located at the top of the valve body and mates with the rotating shaft. A protrusion is provided on the inner wall of the first set of shafts, and a groove is provided on the rotating shaft, wherein the protrusion and the groove are slidably engaged.

3. The exchange switch for reheating coke oven combustion in VOCs waste gas treatment according to claim 2, characterized in that, The driving component includes a fixed frame, a first motor, a first pulley, a second pulley, a V-belt, a first bevel gear, a second bevel gear, and a rotating shaft. The fixed frame is fixedly installed on the top of the valve body, and the rotating shaft is rotatably installed on the fixed frame. The first bevel gear is fixedly installed on the rotating shaft, and the second bevel gear is fixedly installed on the rotating shaft. The first bevel gear and the second bevel gear mesh with each other. The first motor is located on the top of the fixed frame, the first pulley is fixedly installed on the output shaft of the first motor, and the second pulley is fixedly installed on the rotating shaft. The second pulley is connected to the first pulley via a V-belt.

4. The exchange switch for reheating coke oven combustion in VOCs waste gas treatment according to claim 3, characterized in that, The lifting component includes a fixed base, a lifting rod, a gripping rod, a rotating ring, and a first spring. The fixed base is fixedly installed on the top of the valve body. The lifting rod is symmetrically arranged on both sides of the fixed base and rotatably mounted on the fixed base. A strip-shaped hole is opened in the middle of the lifting rod, and a sliding block is provided in the strip-shaped hole. An installation groove is opened on the first sleeve shaft, and the rotating ring is rotatably mounted in the installation groove. Fixed shafts are provided on both sides of the rotating ring, and the fixed shafts are connected to the sliding blocks. The first spring is sleeved on the rotating shaft and is located between the first sleeve shaft and the second bevel gear. The gripping rod is fixedly installed at the end of the lifting rod.

5. The exchange switch for reheating coke oven combustion in VOCs waste gas treatment according to claim 4, characterized in that, The lifting component also includes an arc-shaped plate, a support rod, a fixing rod, a limiting post, and a limiting member. The arc-shaped plate is symmetrically arranged at both ends of the fixing rod, and the center of the arc-shaped plate coincides with the mounting point of the lifting rod on the fixing seat. The two ends of the limiting post are fixedly installed on the arc-shaped plate, and the limiting member is arranged on the lifting rod and cooperates with the limiting post.

6. The exchange switch for reheating coke oven combustion in VOCs waste gas treatment according to claim 5, characterized in that, The limiting component includes a mounting rod, a guide rod, a limiting rod, a second spring, a moving block, a vertical plate, and a limiting plate. The two ends of the mounting rod are fixedly mounted on the lifting rods on both sides of the fixed base. The two ends of the guide rod are fixedly mounted on the mounting rod and the gripping rod, respectively. The limiting rods are symmetrically arranged on both sides of the guide rod, and their two ends are fixedly mounted on the mounting rod and the gripping rod, respectively. The moving block is slidably mounted on the guide rod and the limiting rod. The second spring is sleeved on the guide rod and is located between the moving block and the gripping rod. The vertical plate is vertically mounted on the top of the moving block, and the limiting plate is inclined downwards and mounted on the top of the vertical plate.

7. The exchange switch for reheating coke oven combustion in VOCs waste gas treatment according to claim 1, characterized in that, The air intake component includes a vertical rod, a threaded rod, a guide rod, a push-pull block, a push-pull rod, a cover plate, and a fixing tube. The vertical rods are symmetrically arranged on both sides of the top of the air intake box. The threaded rod is rotatably mounted on the vertical rod and connected to a rotating shaft. The guide rod is located above the threaded rod, and its two ends are fixedly connected to the vertical rods on both sides of the air intake box. The push-pull block is threadedly connected to the threaded rod and slides with the guide rod. The fixing tube is fixedly mounted on the top of the air intake box. One end of the cover plate is rotatably mounted on the fixing tube. The two ends of the push-pull rod are rotatably connected to the push-pull block and the cover plate, respectively.

8. The exchange switch for reheating coke oven combustion in VOCs waste gas treatment according to claim 7, characterized in that, An air guide plate is also provided at the bottom of the cover plate. The air guide plate has a fan-shaped structure, and the center of the air guide plate coincides with the position where the cover plate is installed on the fixed pipe. An air inlet groove is opened on the air guide plate.

9. The exchange switch for reheating coke oven combustion in VOCs waste gas treatment according to claim 1, characterized in that, Inside the air intake box, there is a first guide plate and a second guide plate. The bottom of the first guide plate is fixedly installed on the bottom wall of the air intake box and is inclined upward. The second guide plate is installed on the top wall of the air intake box and is inclined downward.

10. The exchange switch for reheating coke oven combustion in VOCs waste gas treatment according to claim 1, characterized in that, The aerodynamic component includes a second motor, a fixed housing, an aerodynamic frame, an aerodynamic plate, a mounting shaft, and a second set of shafts. The mounting shaft is rotatably mounted on the center line of the mixing chamber, and the second set of shafts is rotatably mounted on the mounting shaft. The aerodynamic frame is fixedly mounted on the second set of shafts. The aerodynamic plate is disposed inside the aerodynamic frame and is fixedly mounted on the mounting shaft. Both the mounting shaft and the second set of shafts extend through the mixing chamber to the outside of the mixing chamber. The fixed housing is fixedly mounted on the outside of the mixing chamber. A third bevel gear and a fourth bevel gear are disposed inside the fixed housing. The second motor is fixedly mounted on the bottom of the fixed housing. The third bevel gear is fixedly mounted on the output shaft of the second motor. The fourth bevel gears are symmetrically disposed on both sides of the third bevel gear and mesh with the third bevel gear. The fourth bevel gears disposed on both sides of the third bevel gear are respectively fixedly mounted on the mounting shaft and the second set of shafts.

Images