Regenerative Thermal Oxidation (RTO) Device and Method for Treating Organic Waste Gas from Waterproof Membrane Production

Abstract

This invention discloses an organic waste gas RTO regenerative thermal oxidation treatment device and method for waterproof membrane production in the field of waste gas treatment technology. It includes an annular heat storage block, a combustion chamber, an external drive mechanism, an external membrane production machine, an external waste gas emission mechanism, an external waste gas storage machine, and an airflow distribution chamber. The waste gas emission mechanism is connected to both the waste gas storage machine and the airflow distribution chamber. Based on the rate at which the waste gas is generated by the membrane production machine, this invention selects whether to treat the waste gas directly or to store a certain amount of waste gas before treatment, reducing wear and tear on the waste gas storage machine, minimizing waste gas leakage, and increasing treatment efficiency. Furthermore, the annular heat storage block circulates through waste gas, air, and tail gas, enabling this invention to complete the heat storage-recirculation-preheating cycle within a single heat storage chamber, avoiding repeated valve switching, reducing process complexity, and improving process stability.

Description

Technical Field

[0001] This invention relates to the field of waste gas treatment technology, specifically to an RTO (Regenerative Thermal Oxidation) device and method for treating organic waste gas from waterproof membrane production. Background Technology

[0002] Regenerative Thermal Oxidizer (RTO). Its principle is to oxidize the organic matter (VOCs) in the waste gas into carbon dioxide and water at high temperature, thereby purifying the waste gas and recovering the heat released during the decomposition of the waste gas. The three-chamber RTO achieves a waste gas decomposition efficiency of over 99% and a heat recovery efficiency of over 95%.

[0003] In traditional waste gas treatment processes, the variable rate of waste gas generation necessitates the unified collection and treatment of organic waste gas generated by production equipment. This adds collection and storage steps to the waste gas treatment process, increasing workload and the risk of waste gas leakage.

[0004] Based on this, the present invention designs an organic waste gas RTO regenerative thermal oxidation treatment device and method for waterproof membrane production to solve the above problems. Summary of the Invention

[0005] The purpose of this invention is to provide an organic waste gas RTO regenerative thermal oxidation treatment device and method for waterproof membrane production, in order to solve the problem mentioned in the background art that in the traditional waste gas treatment process, due to the variable rate of waste gas generation, the organic waste gas generated by the production equipment needs to be collected and then treated in a unified manner, which adds a collection and storage step to the waste gas treatment process, thereby increasing the workload and the risk of waste gas leakage.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an organic waste gas RTO regenerative thermal oxidation treatment device for waterproof membrane production, comprising an annular heat storage block, a combustion chamber, an external drive mechanism, an external membrane production machine, an external waste gas emission mechanism, an external waste gas storage machine, and an airflow distribution chamber. The annular heat storage block is disposed inside the airflow distribution chamber. The drive mechanism is used to drive the annular heat storage block to rotate relative to the airflow distribution chamber. The waste gas emission mechanism is used to collect the waste gas emitted by the membrane production machine. The waste gas emission mechanism is connected to the waste gas storage machine and the airflow distribution chamber respectively. The airflow distribution chamber is used to allow waste gas, air, and exhaust gas to pass through the annular heat storage block at different positions in the airflow distribution chamber, and then be injected into or flow out of the combustion chamber.

[0007] As a further embodiment of the present invention, the airflow distribution chamber includes an inner ring plate. The middle position of the outer side wall of the inner ring plate is fixedly connected to the inner side wall of the annular heat storage block. An outer ring plate is rotatably connected to the outer side wall of the annular heat storage block. A fixing device is externally connected to the outer ring plate. Mounting plates are provided at both the upper and lower ends of the inner and outer ring plates. A first partition, a second partition, a third partition, and a fourth partition are respectively connected to the end of the mounting plate near the annular heat storage block. Water from the upper and lower first partitions, second partitions, third partitions, and fourth partitions is channeled through them. The horizontal positions remain the same. The area between the first and second partitions is region a, the area between the second and third partitions is region c, and the area between the third and fourth partitions is region b. The mounting plate is vertically penetrating regions a, c, and b, respectively, and has an exhaust port, a first air port, and a tail gas port. The upper exhaust port and the first air port are connected to the air inlet of the combustion chamber, the upper tail gas port is connected to the exhaust port of the combustion chamber, the lower exhaust port is connected to the exhaust gas emission mechanism, and a first blower is connected to the lower exhaust port.

[0008] As a further embodiment of the present invention, the area between the fourth partition and the first partition is region d, and the mounting plate is vertically provided with a second air hole at region d. The upper end of the second air hole is connected to the air intake end of the combustion chamber, and the lower end of the second air hole is externally connected to a second blower.

[0009] As a further embodiment of the present invention, the inner ring plate includes a fixed ring, which is fixedly connected to the inner wall of the annular heat storage block. The driving mechanism is pulsatorically connected to the inner wall of the fixed ring. A first rotating ring is rotatably connected to both the upper and lower ends of the fixed ring. The first rotating ring is fixedly connected to a corresponding first partition plate. A second rotating ring is rotatably connected to each of the first rotating rings. The second rotating ring is fixedly connected to a corresponding fourth partition plate. A third rotating ring is rotatably connected to each of the second rotating rings. The third rotating ring is fixedly connected to a corresponding mounting plate. A first connecting rod is connected to the inner walls of the upper and lower first rotating rings. A second connecting rod is connected to the inner walls of the upper and lower second rotating rings. The second and third partition plates are fixedly connected to the outer ring plate and the mounting plate. The first and fourth partition plates are slidably connected to the outer ring plate and the mounting plate. A control mechanism is connected to the lower first and fourth partition plates. The control mechanism is used to control the position of the first and fourth partition plates, thereby controlling the size of regions a and d.

[0010] As a further embodiment of the present invention, the control mechanism includes a first arc-shaped plate, which is slidably connected to the upper end of a mounting plate below it. One end of the first arc-shaped plate is fixedly connected to a first partition plate, and the other end of the first arc-shaped plate is elastically slidably connected to a second arc-shaped plate. The second arc-shaped plate is fixedly connected to the side wall of a third partition plate. A third arc-shaped plate is slidably connected to the upper end of the first arc-shaped plate. The third arc-shaped plate is fixedly connected to a fourth partition plate, and the third arc-shaped plate is elastically slidably connected to a fourth arc-shaped plate. The fourth arc-shaped plate is fixedly connected to the end of the first arc-shaped plate.

[0011] As a further embodiment of the present invention, a sealing strip is fixedly connected to one side of the third partition located in region c, and the sealing strip is slidably connected to the upper end of the annular heat storage block.

[0012] As a further embodiment of the present invention, the combustion chamber includes a cylinder body, a fixed mechanism connected to the outside of the cylinder body, a partition plate vertically and slidably sealed inside the cylinder body, a control motor with a built-in pressure sensor fixedly connected to the inner wall of the upper end of the cylinder body, the output end of the control motor being fixedly connected to the upper end of the partition plate, an exhaust pipe and an air pipe being fixedly connected to the left side of the lower end of the cylinder body, an exhaust pipe being fixedly connected to the right side of the lower end of the cylinder body, and an air pump being provided at the upper end of the left side wall of the cylinder body, the air pump being used to extract and transfer gas above the partition plate inside the cylinder body.

[0013] A regenerative thermal oxidation (RTO) method for treating organic waste gas from waterproof membrane production is as follows:

[0014] S1. During operation, if the speed at which the roll material production machine generates exhaust gas is too low, the exhaust gas will be discharged into the exhaust gas storage machine and accumulated.

[0015] S2. When the speed at which the roll production machine generates waste gas is normal or high, the waste gas emission mechanism directly transports the waste gas to the airflow distribution chamber for treatment.

[0016] S3. During the process of treating exhaust gas, the annular heat storage block rotates clockwise, and the airflow distribution chamber transports exhaust gas, air, tail gas and air in the vertical direction in areas a, d, b and c respectively, passing through the annular heat storage block in the middle.

[0017] S4. During this process, the annular heat storage block is heated by the exhaust gas in zone b; then in zone c, the exhaust gas remaining in the air guide hole is blown into the combustion chamber by air. Then, in zones a and d, the exhaust gas and air are preheated respectively. The preheated exhaust gas and air are burned in the combustion chamber to produce exhaust gas, which is discharged from the output end of the combustion chamber to zone b.

[0018] S5. Finally, the air guide hole rotates to area b to start a new cycle.

[0019] Compared with the prior art, the beneficial effects of the present invention are:

[0020] 1. This invention selects whether to directly discharge the waste gas into the airflow distribution chamber for treatment, or to store a certain amount of waste gas in a waste gas storage unit before discharging it into the airflow distribution chamber for treatment, based on the speed at which the waste gas is generated by the roll material production machine. This effectively reduces the use of the waste gas storage unit during the roll material production process, reduces the wear and tear on the waste gas storage unit, further reduces intermediate transfer links for waste gas, reduces waste gas leakage, and increases treatment efficiency. Furthermore, this invention uses an annular heat storage block to circulate through the transport path of waste gas, air, and tail gas, enabling the invention to meet the cycle of heat storage-recirculation-preheating in the RTO process through a single heat storage chamber. This avoids the back-and-forth switching of valves in traditional solutions, reduces process difficulty, and improves process stability.

[0021] 2. In this invention, the air blown in by the first blower can blow the residual exhaust gas in the annular heat storage block into the combustion chamber, preventing the exhaust gas from reacting with the waste gas and forming crystals. The remaining required air volume is then supplemented by the second blower, so that the annular heat storage block can minimize heat loss during the process of passing through region c, thereby increasing the residual heat of the annular heat storage block when passing through region a, thus enhancing the preheating effect of the annular heat storage block on the waste gas, increasing the temperature of the waste gas entering the combustion chamber as much as possible, and further making the waste gas more likely to participate in the combustion reaction, resulting in more complete combustion of the waste gas.

[0022] 3. This invention stabilizes the flow rate of exhaust gas and air through the vents in the annular heat storage block by adjusting the sizes of regions a and d according to the velocity of the exhaust gas and air entering within them. This ensures that the gas has sufficient time to preheat within the annular heat storage block, and the size of the corresponding region b is maximized while ensuring sufficient preheating of the exhaust gas and air. Furthermore, this invention minimizes the velocity of the exhaust gas flowing through the annular heat storage block and increases the time the exhaust gas spends flowing through it, maximizing the heating of the annular heat storage block by the exhaust gas and increasing the utilization rate of the exhaust gas heat by the equipment. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 This is a side sectional view of the overall structure of the present invention;

[0025] Figure 3 This is a top-section schematic diagram of the upper end of the annular heat storage block in the overall structure of the present invention;

[0026] Figure 4 This is a top-section schematic diagram of the lower end of the annular heat storage block in the overall structure of the present invention;

[0027] Figure 5 This is a schematic diagram of the process flow of the present invention.

[0028] The attached diagram lists the components represented by each number as follows:

[0029] 1. Annular heat storage block, 32. Outer ring plate, 33. Mounting plate, 34. First partition, 35. Second partition, 36. Third partition, 37. Fourth partition, 38. Exhaust vent, 39. Tail vent, 310. First air vent, 41. Second air vent, 51. Fixed ring, 52. First rotating ring, 53. Second rotating ring, 54. First connecting rod, 55. Second connecting rod, 56. First arc plate, 61. Second arc plate, 62. Third arc plate, 63. Fourth arc plate, 64. Sealing strip, 7. Cylinder body, 81. Partition, 82. Control motor, 83. Exhaust pipe, 84. Air pipe, 85. Tail vent, 86. Air pump, 87. Area a, Area b, Area c, Area d. Detailed Implementation

[0030] Please see Figure 1-5 This invention provides a technical solution: an organic waste gas RTO regenerative thermal oxidation treatment device for waterproof membrane production, comprising an annular heat storage block 1, a combustion chamber, an external drive mechanism, an external membrane production machine, an external waste gas emission mechanism, an external waste gas storage machine, and an airflow distribution chamber. The annular heat storage block 1 is disposed inside the airflow distribution chamber. The drive mechanism is used to drive the annular heat storage block 1 to rotate relative to the airflow distribution chamber. The waste gas emission mechanism is used to collect the waste gas emitted by the membrane production machine. The waste gas emission mechanism is connected to the waste gas storage machine and the airflow distribution chamber respectively. The airflow distribution chamber is used to allow waste gas, air, and exhaust gas to pass through the annular heat storage block 1 at different positions in the airflow distribution chamber, and then be injected into or flow out of the combustion chamber.

[0031] During operation, when the speed of exhaust gas generated by the coil production machine is too low (relative to the equipment's exhaust gas processing speed), the exhaust gas emission mechanism transports the exhaust gas to the exhaust gas storage tank. After the storage tank stores a certain amount of exhaust gas, it then transports the exhaust gas into the airflow distribution chamber for processing. When the speed of exhaust gas generated by the coil production machine is normal or high (relative to the equipment's exhaust gas processing speed), the exhaust gas emission mechanism directly transports the exhaust gas to the airflow distribution chamber for processing. During the exhaust gas treatment process, the drive mechanism first drives the annular heat storage block 1 to rotate clockwise. The airflow distribution chamber then transports exhaust gas, tail gas, and air vertically in zones a, b, and c, passing through the annular heat storage block 1. Exhaust gas and air enter the combustion chamber from zones a and c, while tail gas is discharged from the combustion chamber's output to zone b. This process... Taking a single air guide hole on the annular heat storage block 1 as an example, when the air guide hole is in region b, the exhaust gas passes through the air guide hole from top to bottom and is discharged, heating the heat conduction hole. Then, the air guide hole moves to region c, where air passes through the air guide hole from bottom to top and enters the input end of the combustion chamber. During this process, the air blows the residual exhaust gas in the air guide hole into the combustion chamber, preventing residual exhaust gas from remaining in the air guide hole. At the same time, the air passing through the air guide hole is heated by the air guide hole, preheating the air to reduce the difficulty of subsequent air participating in combustion in the combustion chamber. Then, the air guide hole moves to region a, where the exhaust gas passes through the air guide hole from bottom to top and enters the input end of the combustion chamber. During the process of the exhaust gas passing through the air guide hole, it is preheated by the air guide hole. The preheated exhaust gas and air burn in the combustion chamber to produce exhaust gas, which is discharged from the output end of the combustion chamber to region b. Finally, the air guide hole rotates to region b to start a new cycle.

[0032] This invention selects whether to directly discharge the waste gas into the airflow distribution chamber for treatment, or to store a certain amount of waste gas in a waste gas storage tank before discharging it into the airflow distribution chamber for treatment, based on the speed at which the waste gas is generated by the roll material production machine. This effectively reduces the use of the waste gas storage tank during the roll material production process, reduces the wear and tear on the waste gas storage tank, further reduces intermediate transfer links for waste gas, reduces waste gas leakage, and increases treatment efficiency. Furthermore, this invention uses an annular heat storage block 1 to circulate through the transport path of waste gas, air, and tail gas, enabling the invention to meet the cycle of heat storage-recirculation-preheating in the RTO process through a single heat storage chamber. This avoids the back-and-forth switching of valves in traditional solutions, reduces process difficulty, and improves process stability.

[0033] As a further embodiment of the present invention, the airflow distribution chamber includes an inner ring plate. The middle position of the outer side wall of the inner ring plate is fixedly connected to the inner side wall of the annular heat storage block 1. An outer ring plate 32 is rotatably connected to the outer side wall of the annular heat storage block 1. A fixing device is externally connected to the outer ring plate 32. Mounting plates 33 are provided at both the upper and lower ends of the inner ring plate and the outer ring plate 32. The end of the mounting plate 33 near the annular heat storage block 1 is respectively connected to a first partition plate 34, a second partition plate 35, a third partition plate 36, and a fourth partition plate 37. The horizontal positions of the upper and lower first partition plates 34, second partition plates 35, third partition plates 36, and fourth partition plates 37 are... The positions are kept the same. The area between the first partition 34 and the second partition 35 is area a, the area between the second partition 35 and the third partition 36 is area c, and the area between the third partition 36 and the fourth partition 37 is area b. The mounting plate 33 is vertically penetrating areas a, c, and b, respectively, and has an exhaust gas hole 38, a first air hole 310, and a tail gas hole 39. The upper exhaust gas hole 38 and the first air hole 310 are connected to the air inlet of the combustion chamber, the upper tail gas hole 39 is connected to the exhaust end of the combustion chamber, the lower exhaust gas hole 38 is connected to the exhaust gas emission mechanism, and a first blower is connected to the lower exhaust gas hole 38.

[0034] During operation, the first blower blows fresh air into region c through the first air hole 310 at the lower end, and the exhaust gas emission mechanism blows exhaust gas into region a through the exhaust gas hole 38 at the lower end. After the fresh air and exhaust gas pass through the annular heat storage block 1 for preheating, they enter the combustion chamber through the first air hole 310 and the exhaust gas hole 38 at the upper end, respectively. The amount of air blown in by the first blower is controlled by the PLC according to the amount of exhaust gas blown in by the exhaust gas emission mechanism (the control relationship is controlled proportionally according to the slightly excessive amount of air required for the combustion of organic waste gas). Then, the exhaust gas after the exhaust gas and air are mixed and burned in the combustion chamber enters region b through the exhaust gas hole 39 at the upper end, and then passes through the annular heat storage block 1 to heat the annular heat storage block 1 before being discharged through the exhaust gas hole 39 at the lower end.

[0035] As a further embodiment of the present invention, the area between the fourth partition 37 and the first partition 34 is region d, and the mounting plate 33 is provided with a second air hole 41 vertically penetrating through region d. The upper end of the second air hole 41 is connected to the air intake end of the combustion chamber, and the lower end of the second air hole 41 is externally connected to a second blower.

[0036] During operation, the first blower and the second blower blow air into the equipment through the first air hole 310 and the second air hole 41, respectively. (The amount of air blown in by the first blower and the second blower is controlled by the PLC. The amount of air blown in by the first blower is constant so that the air blown in by the first blower can blow the residual exhaust gas in the annular heat storage block 1 into the combustion chamber to prevent the exhaust gas from reacting with the waste gas and producing crystals. The amount of air blown in by the second blower is used to supplement the total amount of air required by the equipment to meet the air required for the combustion of the waste gas.)

[0037] This invention uses air blown in by a first blower to blow the residual exhaust gas in the annular heat storage block 1 into the combustion chamber, preventing the exhaust gas from reacting with the waste gas and forming crystals. The remaining required air volume is then supplemented by a second blower, minimizing heat loss in the annular heat storage block 1 as it passes through region c, thereby increasing the residual heat in the annular heat storage block 1 when passing through region a. This enhances the preheating effect of the annular heat storage block 1 on the waste gas, maximizing the temperature of the waste gas entering the combustion chamber, and further making the waste gas more readily participate in the combustion reaction, resulting in more complete combustion.

[0038] As a further embodiment of the present invention, the inner ring plate includes a fixed ring 51, which is fixedly connected to the inner wall of the annular heat storage block 1. The driving mechanism is drivenly connected to the inner wall of the fixed ring 51. First rotating rings 52 are rotatably connected to both the upper and lower ends of the fixed ring 51. Each first rotating ring 52 is fixedly connected to a corresponding first partition plate 34. Each first rotating ring 52 is rotatably connected to a second rotating ring 53, which is fixedly connected to a corresponding fourth partition plate 37. Each second rotating ring 53 is rotatably connected to a third rotating ring 54, which is connected to a corresponding mounting plate. The upper and lower first rotating rings 52 are fixedly connected to the inner sidewalls of the two first rotating rings 52, and the upper and lower second rotating rings 53 are fixedly connected to the inner sidewalls of the two second rotating rings 53, and the second partition 35 and the third partition 36 are fixedly connected to the outer ring plate 32 and the mounting plate 33. The first partition 34 and the fourth partition 37 are slidably connected to the outer ring plate 32 and the mounting plate 33. The lower first partition 34 and the fourth partition 37 are connected to a control mechanism, which is used to control the position of the first partition 34 and the fourth partition 37, thereby controlling the size of areas a and d.

[0039] During operation, the control mechanism adjusts the size of regions a and d based on the velocity of the exhaust gas and air entering them (the greater the velocity of the exhaust gas and air, the larger the corresponding regions a and d). This further stabilizes the velocity of the exhaust gas and air flowing through the vents in the annular heat storage block 1, ensuring that the gas has sufficient time to preheat in the annular heat storage block 1. Furthermore, the size of the corresponding region b is maximized while ensuring sufficient preheating of the exhaust gas and air. This further minimizes the velocity of the exhaust gas flowing through the annular heat storage block 1 and increases the time the exhaust gas spends in the annular heat storage block 1, maximizing the heating of the annular heat storage block 1 by the exhaust gas and increasing the equipment's utilization rate of the exhaust gas heat.

[0040] This invention stabilizes the flow rate of exhaust gas and air through the vents in the annular heat storage block 1 by adjusting the sizes of regions a and d according to the velocity of the exhaust gas and air entering within them. This ensures that the gas has sufficient time to preheat within the annular heat storage block 1, and the size of the corresponding region b is maximized while ensuring sufficient preheating of the exhaust gas and air. Furthermore, this invention minimizes the velocity of the exhaust gas flowing through the annular heat storage block 1 and increases the time the exhaust gas spends flowing through it, maximizing the heating of the annular heat storage block 1 by the exhaust gas and increasing the utilization rate of the exhaust gas heat by the equipment.

[0041] As a further embodiment of the present invention, the control mechanism includes a first arc-shaped plate 61, which is slidably connected to the upper end of the mounting plate 33 below. One end of the first arc-shaped plate 61 is fixedly connected to a first partition 34, and the other end of the first arc-shaped plate 61 is elastically slidably connected to a second arc-shaped plate 62. The second arc-shaped plate 62 is fixedly connected to the side wall of a third partition 36. A third arc-shaped plate 63 is slidably connected to the upper end of the first arc-shaped plate 61. The third arc-shaped plate 63 is fixedly connected to a fourth partition 37. The third arc-shaped plate 63 is elastically slidably connected to a fourth arc-shaped plate 64, and the fourth arc-shaped plate 64 is fixedly connected to the end of the first arc-shaped plate 61.

[0042] During operation, as the gas velocity entering region a increases, the corresponding gas pressure in region a increases, causing the first partition 34 to overcome the elastic force between the first arc plate 61 and the second arc plate 62 and move closer to the third partition 36, thereby increasing the size of region a. Similarly, as the gas velocity entering region d increases, the fourth partition 37 moves closer to the third partition 36, thereby increasing the size of region d.

[0043] As a further embodiment of the present invention, the third partition 36 is fixedly connected to a sealing strip 7 on one side of region c, and the sealing strip 7 is slidably connected to the upper end of the annular heat storage block 1.

[0044] By using the sealing strip 7, the annular heat storage block 1 will no longer receive the downward-flowing exhaust gas when it is about to enter the region c, thus eliminating the kinetic energy of the exhaust gas and increasing the stability of the air backflow.

[0045] As a further embodiment of the present invention, the combustion chamber includes a cylinder body 81, an external fixing mechanism for the cylinder body 81, a vertically sliding and sealed partition 82 inside the cylinder body 81, a control motor 83 with a built-in pressure sensor fixedly connected to the upper inner wall of the cylinder body 81, the output end of the control motor 83 fixedly connected to the upper end of the partition 82, an exhaust pipe 84 and an air pipe 85 fixedly connected to the lower left side of the cylinder body 81, an exhaust pipe 86 fixedly connected to the lower right side of the cylinder body 81, and an air pump 87 provided on the upper end of the left side wall of the cylinder body 81, the air pump 87 being used to extract and transfer gas above the partition 82 inside the cylinder body 81.

[0046] During operation, preheated air and exhaust gas enter cylinder 81 through exhaust pipe 84 and air pipe 85 for mixing and combustion (the relevant ignition mechanism is existing technology; in this invention, it is assumed that cylinder 81 has its own ignition mechanism). The mixture is then discharged through exhaust pipe 86. The air pressure inside cylinder 81 below baffle 82 acts on baffle 82, generating an upward thrust on baffle 82. The control motor 83 determines the air pressure inside cylinder 81 below baffle 82 based on the magnitude of the thrust. By controlling the up-and-down movement of baffle 82, the volume inside cylinder 81 below baffle 82 is changed, thereby controlling the air pressure inside cylinder 81 to prevent the air pressure inside cylinder 81 from being too low, which would increase the difficulty of ignition.

[0047] A regenerative thermal oxidation (RTO) method for treating organic waste gas from waterproof membrane production is as follows:

[0048] S1. During operation, if the speed at which the roll material production machine generates exhaust gas is too low, the exhaust gas will be discharged into the exhaust gas storage machine and accumulated.

[0049] S2. When the speed at which the roll production machine generates waste gas is normal or high, the waste gas emission mechanism directly transports the waste gas to the airflow distribution chamber for treatment.

[0050] S3. During the process of treating exhaust gas, the annular heat storage block 1 rotates clockwise, and the airflow distribution chamber transports exhaust gas, air, tail gas and air in the vertical direction in areas a, d, b and c respectively, passing through the annular heat storage block 1 in the middle.

[0051] S4. During this process, when the annular heat storage block 1 is in zone b, it is heated by the exhaust gas; then in zone c, the exhaust gas remaining in the air guide hole is blown into the combustion chamber by air. Then, in zones a and d, the exhaust gas and air are preheated respectively. The preheated exhaust gas and air are burned in the combustion chamber to produce exhaust gas, which is discharged from the output end of the combustion chamber to zone b.

[0052] S5. Finally, the air guide hole rotates to area b to start a new cycle.

Claims

1. A regenerative thermal oxidation (RTO) device for treating organic waste gas from waterproof membrane production, characterized in that: The device includes an annular heat storage block (1), a combustion chamber, an external drive mechanism, an external roll forming machine, an external exhaust gas emission mechanism, an external exhaust gas storage machine, and an airflow distribution chamber. The annular heat storage block (1) is located inside the airflow distribution chamber. The drive mechanism is used to drive the annular heat storage block (1) to rotate relative to the airflow distribution chamber. The exhaust gas emission mechanism is used to collect the exhaust gas emitted by the roll forming machine. The exhaust gas emission mechanism is connected to the exhaust gas storage machine and the airflow distribution chamber respectively. The airflow distribution chamber is used to allow the exhaust gas, air, and tail gas to pass through the annular heat storage block (1) at different positions in the airflow distribution chamber, and then be injected into or flow out of the combustion chamber. The airflow distribution chamber includes an inner ring plate. The middle position of the outer side wall of the inner ring plate is fixedly connected to the inner side wall of the annular heat storage block (1). An outer ring plate (32) is rotatably connected to the outer side wall of the annular heat storage block (1). A fixing device is connected to the outer ring plate (32). Mounting plates (33) are provided at both the upper and lower ends of the inner ring plate and the outer ring plate (32). The end of the mounting plate (33) near the annular heat storage block (1) is respectively connected to a first partition (34), a second partition (35), a third partition (36), and a fourth partition (37). The horizontal positions of the upper and lower first partitions (34), second partitions (35), third partitions (36), and fourth partitions (37) are respectively maintained. Similarly, the area between the first partition (34) and the second partition (35) is region a, the area between the second partition (35) and the third partition (36) is region c, and the area between the third partition (36) and the fourth partition (37) is region b; the mounting plate (33) is vertically penetrating regions a, c, and b respectively and has an exhaust gas hole (38), a first air hole (310), and a tail gas hole (39). The upper exhaust gas hole (38) and the first air hole (310) are connected to the air inlet of the combustion chamber, the upper tail gas hole (39) is connected to the exhaust end of the combustion chamber, the lower exhaust gas hole (38) is connected to the exhaust gas emission mechanism, and the lower exhaust gas hole (38) is externally connected to a first blower; The area between the fourth partition (37) and the first partition (34) is region d. The mounting plate (33) is vertically penetrating region d and has a second air hole (41). The upper end of the second air hole (41) is connected to the combustion chamber air inlet, and the lower end of the second air hole (41) is connected to a second blower. The inner ring plate includes a fixed ring (51), which is fixedly connected to the inner wall of the annular heat storage block (1). The driving mechanism is drivenly connected to the inner wall of the fixed ring (51). The upper and lower ends of the fixed ring (51) are rotatably connected to a first rotating ring (52). The first rotating ring (52) is fixedly connected to a corresponding first partition plate (34). The first rotating ring (52) is rotatably connected to a second rotating ring (53). The second rotating ring (53) is fixedly connected to a corresponding fourth partition plate (37). The second rotating ring (53) is rotatably connected to a third rotating ring (54). The third rotating ring (54) is fixedly connected to a corresponding mounting plate (33). The inner walls of the two first rotating rings (52) are connected to a first connecting rod (55), and the inner walls of the two second rotating rings (53) are connected to a second connecting rod (56). The second partition (35) and the third partition (36) are fixedly connected to the outer ring plate (32) and the mounting plate (33). The first partition (34) and the fourth partition (37) are slidably connected to the outer ring plate (32) and the mounting plate (33). The lower first partition (34) and the fourth partition (37) are connected to a control mechanism. The control mechanism is used to control the position of the first partition (34) and the fourth partition (37), thereby controlling the size of areas a and d.

2. The organic waste gas RTO regenerative thermal oxidation treatment device for waterproof membrane production according to claim 1, characterized in that: The control mechanism includes a first arc-shaped plate (61), which is slidably connected to the upper end of the mounting plate (33) below. One end of the first arc-shaped plate (61) is fixedly connected to the first partition plate (34), and the other end of the first arc-shaped plate (61) is elastically slidably connected to a second arc-shaped plate (62). The second arc-shaped plate (62) is fixedly connected to the side wall of the third partition plate (36). The upper end of the first arc-shaped plate (61) is slidably connected to a third arc-shaped plate (63), which is fixedly connected to a fourth partition plate (37). The third arc-shaped plate (63) is elastically slidably connected to a fourth arc-shaped plate (64), which is fixedly connected to the end of the first arc-shaped plate (61).

3. The organic waste gas RTO regenerative thermal oxidation treatment device for waterproof membrane production according to claim 2, characterized in that: The third partition (36) is fixedly connected to a sealing strip (7) on one side of region c, and the sealing strip (7) is slidably connected to the upper end of the annular heat storage block (1).

4. The organic waste gas RTO regenerative thermal oxidation treatment device for waterproof membrane production according to claim 3, characterized in that: The combustion chamber includes a cylinder (81), which is externally fixed. A partition (82) is vertically and slidably sealed inside the cylinder (81). A control motor (83) with a built-in pressure sensor is fixedly connected to the inner wall of the upper end of the cylinder (81). The output end of the control motor (83) is fixedly connected to the upper end of the partition (82). An exhaust pipe (84) and an air pipe (85) are fixedly connected to the left side of the lower end of the cylinder (81). An exhaust pipe (86) is fixedly connected to the right side of the lower end of the cylinder (81). An air pump (87) is provided on the upper end of the left side wall of the cylinder (81). The air pump (87) is used to extract and transfer the gas above the partition (82) inside the cylinder (81).

5. A method for treating organic waste gas from waterproof membrane production using a regenerative thermal oxidation (RTO) device, applicable to the organic waste gas from waterproof membrane production as described in claim 4, characterized in that; The method is as follows: S1. During operation, if the speed at which the roll material production machine generates exhaust gas is too low, the exhaust gas will be discharged into the exhaust gas storage machine and accumulated. S2. When the speed at which the roll production machine generates waste gas is normal or high, the waste gas emission mechanism directly transports the waste gas to the airflow distribution chamber for treatment. S3. During the process of treating exhaust gas, the annular heat storage block (1) rotates clockwise, and the airflow distribution chamber transports exhaust gas, air, tail gas and air in the vertical direction in areas a, d, b and c respectively, passing through the annular heat storage block (1). S4. During this process, the annular heat storage block (1) is heated by the exhaust gas in region b; then in region c, the exhaust gas remaining in the air guide hole is blown into the combustion chamber by air. Then, in regions a and d, the exhaust gas and air are preheated respectively. After preheating, the exhaust gas and air are burned in the combustion chamber to generate exhaust gas, which is discharged from the output end of the combustion chamber to region b. S5. Finally, the air guide hole rotates to area b to start a new cycle.

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