Device for treating waste gas containing dichloromethane

Abstract

The invention discloses a device for treating waste gas containing dichloromethane, and relates to the technical field of efficient activated carbon treatment of dichloromethane waste gas, the device comprises a treatment equipment main body, an access door is arranged on the outer wall of the treatment equipment main body, and an alternating assembly is arranged on the treatment equipment main body; according to the alternating assembly in the device, the detachable activated carbon modules are annularly distributed at equal intervals, and a timed rotating mechanism is combined, so that the activated carbon modules adsorbing a large amount of dichloromethane are automatically separated from an adsorption area, and meanwhile, the activated carbon modules with regenerated adsorption capacity are transferred into the adsorption area, so that activated carbon for purifying waste gas moves; therefore, dichloromethane in the waste gas can be continuously adsorbed, and the problems of tedious operation steps and overlong downtime caused by manual disassembly and replacement of the activated carbon module due to adoption of a fixed mounting mode of the activated carbon module in the prior art are solved, so that efficient activated carbon can be continuously used for waste gas purification; the automation of efficient activated carbon adsorption is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of high - efficiency activated carbon treatment of dichloromethane waste gas, and more specifically, to a device for treating dichloromethane - containing waste gas. Background Art

[0002] A device for treating dichloromethane - containing waste gas generally refers to an industrial device that uses high - efficiency activated carbon as an adsorbent to adsorb and purify dichloromethane in volatile waste gas; In existing devices for treating dichloromethane - containing waste gas, fixed - installed activated carbon modules are usually adopted. This method requires manual disassembly of the high - efficiency activated carbon modules for replacement, which is cumbersome and time - consuming, resulting in long equipment downtime and reducing the efficiency of high - efficiency activated carbon in purifying waste gas; At the same time, to avoid the pressure caused by the too - fast contact between waste gas and high - efficiency activated carbon, traditional technologies usually adjust the gas flow by reducing the waste gas flow rate. However, although this method can reduce the instantaneous pressure, it inevitably leads to a decrease in waste gas treatment capacity and reduces the adsorption efficiency and uniformity of high - efficiency activated carbon for waste gas; And traditional regeneration technologies usually take out all the high - efficiency activated carbon and then conduct centralized heating regeneration. This method causes the long - term interruption of waste gas transportation and also reduces the waste gas treatment efficiency; To solve the above problems, the inventor has proposed a device for treating dichloromethane - containing waste gas. Summary of the Invention

[0003] To solve the above - mentioned technical problems, a device for treating dichloromethane - containing waste gas is provided, and this technical solution solves the problems raised in the above - mentioned background art; To achieve the above object, the present invention can adopt the following technical solutions: The present invention provides a device for treating dichloromethane - containing waste gas, including a main treatment device body, and a maintenance door is provided on the outer wall of the main treatment device body; An alternating component is provided on the main treatment device body. The alternating component includes a support plate fixedly connected to the main treatment device body. A dividing plate and a connecting disk are rotatably connected to the support plate. A plurality of strip - shaped inner grooves are annularly and equidistantly opened on the dividing plate. A limiting block and a pushing block are fixedly connected to the connecting disk. A placement frame is rotatably connected to the inner cavity of the main treatment device body. A plurality of triangular holes are annularly and equidistantly opened on the placement frame. A plurality of cavity blocks are detachably connected to the placement frame by bolts. A plurality of air guiding covers are symmetrically and annularly and equidistantly fixedly connected to the outer wall of the placement frame. A servo motor is fixedly installed on the main treatment device body.

[0004] Preferably, a plurality of arc-shaped inner grooves are equidistantly arranged in a ring on the partition board, and the number of arc-shaped inner grooves is equal to the number of strip-shaped inner grooves. The limiting block is adapted to each arc-shaped inner groove, the pushing block is adapted to each strip-shaped inner groove, and the output shaft of the servo motor is fixedly connected to the connecting disc.

[0005] Preferably, activated carbon is installed in each cavity block, and a plurality of ventilation holes are arranged on the surface of each cavity block. The number of cavity blocks is equal to the number of strip-shaped inner grooves. The number of air guide covers on the same side is equal to the number of triangular holes on the same side, and the total number of air guide covers and triangular holes is twice the number of strip-shaped inner grooves. The shape of each air guide cover is a "frustum of a pyramid".

[0006] Preferably, a docking assembly is arranged in the main body of the processing device. The docking assembly includes four transverse grooves symmetrically arranged in the inner cavity of the main body of the processing device. A first rack is slidably connected in each of the upper two transverse grooves, and a second rack is slidably connected in each of the lower two transverse grooves. Each first rack is fixedly connected with two first docking pipes, and each second rack is fixedly connected with two second docking pipes. A gear is rotatably connected in the inner cavity of the main body of the processing device. A long strip board is fixedly connected to one of the second racks, and a crank is rotatably connected to one side of the inner cavity of the main body of the processing device close to the gear.

[0007] Preferably, C-shaped rods are fixedly connected between the two first racks and the two second racks. The gear is meshed with the adjacent first rack and second rack. The crank is adapted to the long strip board, and the crank is fixedly connected to the limiting block.

[0008] Preferably, a sealing gasket is arranged between each first docking pipe and the adjacent second docking pipe, and the first docking pipe and the second docking pipe are adapted to the adjacent air guide cover.

[0009] Preferably, an air intake assembly is arranged in the main body of the processing device. The air intake assembly includes a drying pipe, a Y-shaped pipe, a connecting pipe and a discharge pipe communicated in the main body of the processing device. The drying pipe is communicated with a heating box, the Y-shaped pipe is communicated with a storage box. A flexible air bag and a pressure-sensitive switch are fixedly connected in the storage box. The drying pipe and the Y-shaped pipe are both communicated with an air extraction fan.

[0010] Preferably, electromagnetic valves are arranged on both the drying pipe and the Y-shaped pipe. An electric heating wire is arranged in the heating box, and an electronically controlled timing valve is arranged in the storage box.

[0011] Preferably, the drying pipe, the Y-shaped pipe, the connecting pipe and the discharge pipe are all adapted to the adjacent first docking pipe and second docking pipe.

[0012] As described above, the advantages of the present invention are: In the alternating component of this device, through the annular equidistant distribution of the detachable high-efficiency activated carbon module and in combination with the timing rotation mechanism, the high-efficiency activated carbon module that has adsorbed a large amount of dichloromethane automatically disengages from the adsorption zone, while the high-efficiency activated carbon module with regenerated adsorption capacity is transferred into the adsorption zone, causing the high-efficiency activated carbon for purifying waste gas to move. Thus, dichloromethane in the waste gas can be continuously adsorbed, solving the problem in the prior art that in the fixed installation method of the high-efficiency activated carbon module, manual disassembly and replacement of the high-efficiency activated carbon module are required, resulting in cumbersome operation steps and too long downtime. In this way, high-efficiency activated carbon can be continuously used for waste gas purification, greatly improving the automation of high-efficiency activated carbon adsorption; The docking component and the air intake component in this device cooperate with each other. Through the structural design of the waste gas intake pipeline and the setting of a buffer container, the pressure of the waste gas impacting the high-efficiency activated carbon is dispersed without reducing the waste gas transportation speed, solving the problem in the prior art that by reducing the waste gas transportation speed to relieve the pressure, the utilization of the high-efficiency activated carbon layer is uneven, resulting in a decrease in the adsorption reaction rate of the high-efficiency activated carbon and a reduction in the equipment processing capacity. In this way, not only is the utilization of the high-efficiency activated carbon layer more sufficient, but also the adsorption of dichloromethane by the high-efficiency activated carbon is more uniform; The alternating component and the air intake component in this device cooperate with each other. The dichloromethane gas in the high-efficiency activated carbon is dried by the heated air, causing the dichloromethane to desorb from the activated carbon, thereby restoring the adsorption capacity of the activated carbon. And the adsorption of dichloromethane by the high-efficiency activated carbon and the regeneration of the adsorption capacity of the high-efficiency activated carbon can be carried out simultaneously, solving the problem in the traditional technology that after all the high-efficiency activated carbon in the fixed-installed activated carbon module needs to be manually taken out, then centralized heating and desorption are carried out, and then reinstalled for adsorption, resulting in a long interruption of waste gas transportation due to the replacement or regeneration of the activated carbon, leading to a reduction in waste gas treatment efficiency. In this way, the high-efficiency activated carbon can automatically carry out cyclic adsorption, improving the processing capacity of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a front three-dimensional schematic diagram of the overall structure shown in the present invention; Figure 2 is a three-dimensional schematic diagram of the internal section of the main body of the processing equipment shown in the present invention; Figure 3 is a three-dimensional schematic diagram of the relevant components of the main body of the processing equipment and the placement frame shown in the present invention; Figure 4 is an exploded three-dimensional schematic diagram of the placement frame and the air guide cover shown in the present invention; Figure 5 is an exploded three-dimensional schematic diagram of the cavity block and the placement frame shown in the present invention; Figure 6 is a planar schematic diagram of the direction of waste gas passing through the activated carbon layer shown in the present invention; Figure 7 Schematic three-dimensional view of the partition board and connection disk related components shown in the present invention; Figure 8 Schematic plan view of the drying pipe and Y-shaped pipe related components shown in the present invention; Figure 9 Schematic three-dimensional view of the first rack and second rack related components shown in the present invention; Figure 10 Schematic three-dimensional view of the long strip board and crank related components shown in the present invention; Figure 11 Schematic three-dimensional view of the first rack and gear related components shown in the present invention; Figure 12 Schematic three-dimensional view of the first docking pipe and second docking pipe related components shown in the present invention; Figure 13 Schematic three-dimensional view of the flexible airbag and pressure-sensitive switch related components shown in the present invention.

[0014] Among them, the reference numerals in the present invention are: 1. Main body of the processing device; 2. Maintenance door; Alternating component: 31. Support plate; 32. Partition board; 33. Connection disk; 34. Strip-shaped inner groove; 35. Limit block; 36. Pushing block; 37. Placing frame; 38. Triangular hole; 39. Cavity block; 310. Air guide cover; 311. Servo motor; Docking component: 41. Horizontal groove; 42. First rack; 43. Second rack; 44. First docking pipe; 45. Second docking pipe; 46. Gear; 47. Long strip board; 48. Crank; Air intake component: 51. Drying pipe; 52. Y-shaped pipe; 53. Connecting pipe; 54. Discharge pipe; 55. Heating box; 56. Storage box; 57. Flexible airbag; 58. Pressure-sensitive switch; 59. Exhaust fan. Specific embodiments

[0015] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0016] The embodiments provided by the present invention will be elaborated in detail below: A device for treating dichloromethane-containing waste gas, as Figure 1 shown, includes a main body 1 of the processing device, and a maintenance door 2 is provided on the outer wall of the main body 1 of the processing device. Staff can enter the inside of the main body 1 of the processing device through the maintenance door 2 for maintenance; AsFigures 2 to 7 As shown in the figure, an alternating component is provided on the processing device main body 1. The alternating component includes a support plate 31 fixedly connected to the processing device main body 1. A dividing plate 32 and a connecting disk 33 are rotatably connected to the support plate 31. The connecting disk 33 is located directly below the dividing plate 32. A plurality of strip-shaped inner grooves 34 are annularly and equidistantly formed on the dividing plate 32. A limiting block 35 and a pushing block 36 are fixedly connected to one side of the connecting disk 33 away from the support plate 31. The pushing block 36 is located directly below the limiting block 35. A placement frame 37 is rotatably connected to the inner cavity side wall of the processing device main body 1. A plurality of triangular holes 38 are annularly and equidistantly formed on the placement frame 37. The plurality of triangular holes 38 are symmetrically arranged on both sides of the placement frame 37. A plurality of cavity blocks 39 are detachably connected to the placement frame 37 by bolts. The plurality of cavity blocks 39 correspond to two adjacent triangular holes 38. A plurality of air guiding covers 310 are symmetrically and annularly and fixedly connected to one side of the placement frame 37 close to the triangular holes 38. The plurality of air guiding covers 310 are symmetrically arranged on both sides of the placement frame 37. A servo motor 311 is fixedly installed on one side of the processing device main body 1 close to the support plate 31.

[0017] Further, as Figure 3 and Figure 7 shown in the figure, a plurality of arc-shaped inner grooves are annularly and equidistantly formed on the dividing plate 32, and the number of arc-shaped inner grooves is equal to the number of strip-shaped inner grooves 34. The limiting block 35 is adapted to each arc-shaped inner groove. The connecting disk 33 is in a water droplet shape. The pushing block 36 is located on the side away from the center of the connecting disk 33. The pushing block 36 is adapted to each strip-shaped inner groove 34. When the connecting disk 33 rotates to make the pushing block 36 move in a circular motion, it can enter and disengage from the strip-shaped inner groove 34. The output shaft of the servo motor 311 is fixedly connected to the connecting disk 33.

[0018] It should be noted that: as Figures 4 to 6 shown in the figure, activated carbon is installed in each cavity block 39. The activated carbon is used to adsorb dichloromethane in the waste gas, so that the dichloromethane in the waste gas can be directly discharged after being adsorbed by the activated carbon. A plurality of ventilation holes are provided on the surface of each cavity block 39, so that the waste gas passes through the ventilation holes and comes into contact with the activated carbon. The position of the activated carbon in the cavity block 39 and the direction of the waste gas entering the cavity block 39 are as Figure 6 shown in the figure. The number of cavity blocks 39 is equal to the number of strip-shaped inner grooves 34. The number of air guiding covers 310 on the same side is equal to the number of triangular holes 38 on the same side, and the total number of air guiding covers 310 and triangular holes 38 is twice the number of strip-shaped inner grooves 34. The shape of each air guiding cover 310 is a "frustum of a pyramid". Each air guiding cover 310 covers the adjacent triangular hole 38 and a plurality of ventilation holes opened on the adjacent cavity block 39. One side of each air guiding cover 310 close to the cavity block 39 is wider, and one side of each air guiding cover 310 away from the cavity block 39 is narrower.

[0019] Further, asFigures 9 to 12 As shown, a docking component is provided inside the processing device main body 1. The docking component includes four horizontal grooves 41 symmetrically formed in the inner cavity of the processing device main body 1. The four horizontal grooves 41 are symmetrically distributed in two groups on the opposite sides of the inner cavity side wall of the processing device main body 1. A first rack 42 is horizontally slidably connected in each of the upper two horizontal grooves 41, and a second rack 43 is horizontally slidably connected in each of the lower two horizontal grooves 41. Each first rack 42 is fixedly connected to two first docking pipes 44, and the two first docking pipes 44 are both located obliquely below the adjacent first rack 42. Each second rack 43 is fixedly connected to two second docking pipes 45, and the two second docking pipes 45 are both located obliquely above the adjacent second rack 43. The adjacent first docking pipe 44 and second docking pipe 45 are closely attached to each other. A gear 46 is rotatably connected to the inner cavity side wall of the processing device main body 1. The gear 46 is located on the inner cavity side wall of the processing device main body 1 close to the support plate 31. A long strip plate 47 is fixedly connected to the second rack 43 on the side close to the gear 46. A crank 48 is rotatably connected to one side of the inner cavity of the processing device main body 1 close to the gear 46.

[0020] Further, as Figure 10 and Figure 11 shown, a C-shaped rod is fixedly connected between the two first racks 42 and the two second racks 43. The C-shaped rod enables the two first racks 42 to move synchronously and the two second racks 43 to move synchronously. The gear 46 is meshed with the adjacent first rack 42 and second rack 43. The end of the crank 48 away from the limit block 35 is adapted to the inner ring surface of the long strip plate 47. The end of the crank 48 away from the long strip plate 47 is fixedly connected to the limit block 35.

[0021] Further, as Figure 10 and Figure 12 shown, a sealing gasket is provided between each first docking pipe 44 and the adjacent second docking pipe 45, so as to ensure the sealing performance after the first docking pipe 44 and the second docking pipe 45 are attached, and prevent waste gas from leaking when passing through the first docking pipe 44 and the second docking pipe 45. Moreover, the docking pipeline formed after the first docking pipe 44 and the second docking pipe 45 are attached is adapted to the adjacent air guide cover 310, and a part of the multiple air guide covers 310 is located inside the docking channel formed after the adjacent first docking pipe 44 and second docking pipe 45 are attached.

[0022] Further, as Figure 8 、 Figure 11 and Figure 13As shown in the figure, an air intake assembly is provided inside the processing device main body 1. The air intake assembly includes a drying pipe 51, a Y-shaped pipe 52, a connecting pipe 53, and a discharge pipe 54 that are connected to the inside of the processing device main body 1. Both the drying pipe 51 and the Y-shaped pipe 52 are located on the side away from the support plate 31, and both the connecting pipe 53 and the discharge pipe 54 are located on the side close to the support plate 31. The drying pipe 51 and the connecting pipe 53 are on the same axis, and the Y-shaped pipe 52 and the discharge pipe 54 are on the same axis. One side of the drying pipe 51 away from the processing device main body 1 is connected to a heating box 55, and one side of the Y-shaped pipe 52 away from the processing device main body 1 is connected to a storage box 56. A flexible airbag 57 and a pressure-sensitive switch 58 are fixedly connected inside the storage box 56. Both the drying pipe 51 and the Y-shaped pipe 52 are connected to an air extraction fan 59. The air extraction fan 59 is used to suck outside air into the inside of the drying pipe 51 and suck waste gas into the inside of the Y-shaped pipe 52. The air extraction fan 59 on the drying pipe 51 is located between the processing device main body 1 and the heating box 55, and the air extraction fan 59 on the Y-shaped pipe 52 is located on the side of the storage box 56 away from the processing device main body 1.

[0023] Further, as Figure 13 shown, electromagnetic valves are provided on both the drying pipe 51 and the Y-shaped pipe 52 to control whether outside gas and waste gas can come into contact with the activated carbon in the internal cavity block 39 of the processing device main body 1. An electric heating wire is provided inside the heating box 55, and the electric heating wire is used to heat outside gas. The heated outside gas is used to dry the dichloromethane adsorbed by the activated carbon, thereby restoring the adsorption capacity of the activated carbon. An electronically controlled timing valve is provided inside the storage box 56. When the waste gas in the flexible airbag 57 increases, causing the flexible airbag 57 to expand and squeeze the pressure-sensitive switch 58, the electronically controlled timing valve opens, allowing the waste gas in the flexible airbag 57 to be released. The electronically controlled timing valve will automatically close after opening for a fixed time.

[0024] Further, as Figure 11 shown, the drying pipe 51, the Y-shaped pipe 52, the connecting pipe 53, and the discharge pipe 54 are all adapted to the docking channels formed after fitting with the adjacent docking pipe one 44 and docking pipe two 45. Part of the drying pipe 51, the Y-shaped pipe 52, the connecting pipe 53, and the discharge pipe 54 is located inside the docking channels formed after fitting of the adjacent docking pipe one 44 and docking pipe two 45.

[0025] During operation: The staff sets the output shaft of the servo motor 311 to rotate clockwise one full circle at regular intervals through the controller; This device can maintain the uniformity of activated carbon adsorption. The following are the detailed steps: When processing waste gas containing dichloromethane is required, the staff connects one end of the Y-shaped pipe 52 away from the processing device main body 1 to the device generating waste gas containing dichloromethane, and connects one end of the connecting pipe 53 away from the processing device main body 1 to the condensation treatment tower; Subsequently, the staff starts the solenoid valve on the Y-shaped pipe 52 and the exhaust fan 59 through the controller. By the rotation of the exhaust fan 59, the waste gas containing dichloromethane is suctioned into the Y-shaped pipe 52. Due to the structural design of the Y-shaped pipe 52, part of the waste gas suctioned into the Y-shaped pipe 52 moves along the Y-shaped pipe 52 to the end of the Y-shaped pipe 52 close to the main body 1 of the treatment device and comes into contact with the activated carbon in the corresponding cavity block 39 of the Y-shaped pipe 52; Another part enters the interior of the flexible airbag 57. As the exhaust fan 59 on the Y-shaped pipe 52 continuously suctions waste gas into the Y-shaped pipe 52, more and more waste gas accumulates inside the flexible airbag 57, further causing the flexible airbag 57 to continuously expand. When the flexible airbag 57 expands and the outer wall of the flexible airbag 57 presses against the pressure-sensitive switch 58, the electronically controlled timing valve provided in the storage tank 56 opens, allowing the waste gas stored inside the flexible airbag 57 to be discharged to the end of the Y-shaped pipe 52 close to the main body 1 of the treatment device and come into contact with the activated carbon in the corresponding cavity block 39 of the Y-shaped pipe 52. At this time, since the waste gas inside the flexible airbag 57 is discharged, the flexible airbag 57 gradually shrinks. Since the electronically controlled timing valve will automatically close after being opened for a fixed time, when the electronically controlled timing valve provided in the storage tank 56 closes, the flexible airbag 57 starts to expand again as the waste gas increases, that is, repeating the above steps. In this way, by setting the buffer container, it is possible to relieve the instantaneous airflow fluctuation on the premise of ensuring the constant waste gas transportation speed, and it is also possible to disperse the pressure of the waste gas impacting the activated carbon; In the above process, the docking component and the air intake component in the device cooperate with each other. Through the structural design of the waste gas intake pipe and the setting of the buffer container, the pressure of the waste gas impacting the activated carbon is dispersed on the premise of not reducing the waste gas transportation speed, solving the problem in the prior art that the pressure is relieved by reducing the waste gas transportation speed, resulting in uneven utilization of the activated carbon layer, leading to a decrease in the adsorption reaction rate of the activated carbon and a reduction in the treatment capacity of the device. In this way, not only is the utilization of the high-efficiency activated carbon layer more sufficient, but also the adsorption of dichloromethane by the high-efficiency activated carbon is more uniform.

[0026] The device can form a system of "adsorption-regeneration-rotation" for the activated carbon. The following are the detailed steps: The waste gas enters the adjacent air guide cover 310 and cavity block 39 from the Y-shaped pipe 52. Through the adsorption of the activated carbon in the adjacent cavity block 39, the dichloromethane in the waste gas is adsorbed, and the adsorbed waste gas is then discharged from the adjacent air guide cover 310 and the discharge pipe 54; As the activated carbon continuously adsorbs dichloromethane, the activated carbon gradually becomes saturated. The output shaft of the servo motor 311 set by the controller starts to rotate clockwise and stops after one rotation. At the same time, the solenoid valves on the drying pipe 51 and the Y-shaped pipe 52 are closed. During the process of the output shaft of the servo motor 311 rotating one circle, the connecting disk 33 is driven to rotate clockwise together; During one clockwise rotation of the connection disk 33, the pushing block 36 on the connection disk 33 moves in a circular motion. Before the pushing block 36 rotates into the internal bar-shaped groove 34, the outer arc surface of the limiting block 35 fits with the arc-shaped internal groove on the outer wall of the partition plate 32, so that the partition plate 32 cannot rotate freely and remains stationary under the limiting action of the outer arc surface of the limiting block 35; When the pushing block 36 enters the internal bar-shaped groove 34 opened on the partition plate 32, the arc-shaped internal groove on the outer wall of the partition plate 32 disengages from the contact with the outer arc surface of the limiting block 35. As the connection disk 33 continues to rotate, the pushing block 36 gradually enters the bar-shaped internal groove 34 and gradually pushes the bar-shaped internal groove 34, causing the partition plate 32 to rotate counterclockwise. During the process that the pushing block 36 rotates through the bar-shaped internal groove 34 to push the partition plate 32 to rotate counterclockwise, the positions of the six bar-shaped internal grooves 34 on the partition plate 32 are mutually replaced. During the replacement process, the connection disk 33 continues to rotate, causing the pushing block 36 to gradually slide out of the bar-shaped internal groove 34. When the connection disk 33 rotates one clockwise circle, the partition plate 32 rotates counterclockwise by sixty degrees and then remains stationary; Before the pushing block 36 on the connection disk 33 rotates into the internal bar-shaped groove 34, the placement frame 37 remains stationary, and the limiting block 35 on the connection disk 33 drives the crank 48 to rotate together, so that the end of the crank 48 away from the limiting block 35 pulls the long strip plate 47, and further causes the second rack 43 to drive the second docking pipe 45 to move along the horizontal groove 41 in the direction away from the air guide cover 310. Since both the second rack 43 and the first rack 42 are engaged with the gear 46, when the second rack 43 drives the second docking pipe 45 to move along the horizontal groove 41 in the direction away from the air guide cover 310, the first rack 42 drives the first docking pipe 44 to move in the opposite direction. That is, before the pushing block 36 enters the bar-shaped internal groove 34, the first docking pipe 44 and the second docking pipe 45 adjacent to each air guide cover 310 move away from each other; When the pushing block 36 enters the internal bar-shaped groove 34, the placement frame 37 rotates with the partition plate 32, and at the same time, the first docking pipe 44 and the second docking pipe 45 continue to move away from each other. When the connection disk 33 rotates half a circle, the first docking pipe 44 and the second docking pipe 45 are at the farthest distance from each other. When the pushing block 36 rotates out of the bar-shaped internal groove 34, the placement frame 37 has rotated sixty degrees and remains stationary, and at the same time, the first docking pipe 44 and the second docking pipe 45 move closer to each other. At this time, the cavity block 39 filled with activated carbon that has absorbed dichloromethane rotates away from the position where the Y-shaped pipe 52 is located, and the next cavity block 39 filled with activated carbon that has not adsorbed dichloromethane rotates to the position where the Y-shaped pipe 52 is located; As the connecting plate 33 continues to rotate, the first docking pipe 44 and the second docking pipe 45 approach each other. When the pushing block 36 rotates one full circle and returns to its initial position, the first docking pipe 44 and the second docking pipe 45 fit together again, and the docking channel formed by the first docking pipe 44 and the second docking pipe 45 reconnects the drying pipe 51, the Y-shaped pipe 52, the connecting pipe 53, and the discharge pipe 54 to the adjacent air guide hood 310 and maintains the seal. Subsequently, the solenoid valves on the drying pipe 51 and the Y-shaped pipe 52 are opened, and at this time, the purification of the waste gas can continue.

[0027] During the above process, the alternating component in this device, through the annular equidistant distribution of the detachable activated carbon modules and in combination with the timing rotation mechanism, enables the activated carbon modules that have adsorbed a large amount of dichloromethane to automatically move out of the adsorption area, while transferring the activated carbon modules with regenerated adsorption capacity into the adsorption area, causing the activated carbon used for purifying the waste gas to move. Thus, the dichloromethane in the waste gas can be continuously adsorbed, solving the problem in the prior art that the fixed installation method of the activated carbon modules requires manual disassembly and replacement of the activated carbon modules, resulting in cumbersome operation steps and too long downtime. In this way, highly efficient activated carbon can be continuously used for waste gas purification, greatly improving the automation of highly efficient activated carbon adsorption.

[0028] The following are the steps for regenerating the adsorption capacity of the activated carbon that has absorbed dichloromethane: During the process of the placement frame 37 rotating by sixty degrees, the cavity block 39 filled with activated carbon that has absorbed dichloromethane rotates away from the position where the Y-shaped pipe 52 is located and rotates to the position where the drying pipe 51 is located. At the same time, the next cavity block 39 filled with activated carbon that has not adsorbed dichloromethane rotates to the position where the Y-shaped pipe 52 is located. At this time, the staff starts the solenoid valve on the drying pipe 51, the air extraction fan 59 on the drying pipe 51, and the heating wire in the heating box 55 through the controller, so that the outside air is sucked into the interior of the heating box 55 and heated by the heating wire inside the heating box 55. The air extraction fan 59 blows the heated air, so that the heated air heats the activated carbon that has absorbed dichloromethane, thereby drying the dichloromethane in the activated carbon, causing the dichloromethane to desorb from the activated carbon and blowing the desorbed dichloromethane to the condensation treatment tower connected to the end of the connecting pipe 53 for treating the dichloromethane. At this time, the adsorption capacity of the activated carbon is regenerated.

[0029] In the above process, the alternating component and the intake component in this device cooperate with each other to dry the dichloromethane gas in the activated carbon through the heated air, so that the dichloromethane is desorbed from the activated carbon, thereby restoring the adsorption capacity of the activated carbon. Moreover, the adsorption of dichloromethane by the activated carbon and the regeneration of the adsorption capacity of the activated carbon can be carried out simultaneously, solving the problem in the traditional technology that after all the activated carbon in the fixedly installed activated carbon module needs to be manually taken out, then centralized heating desorption is carried out, and then reinstalled for adsorption, resulting in the long-term interruption of waste gas transportation due to the replacement or regeneration of the activated carbon, leading to the reduction of waste gas treatment efficiency. In this way, the high-efficiency activated carbon can automatically carry out cyclic adsorption, improving the treatment capacity of the equipment.

[0030] The above are only the embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. An apparatus for treating waste gas containing dichloromethane, comprising a main body of treatment equipment (1), characterized in that, An inspection door (2) is provided on the outer wall of the processing equipment main body (1); An alternating component is provided on the processing equipment main body (1). The alternating component includes a support plate (31) fixedly connected to the processing equipment main body (1). A partition plate (32) and a connecting disk (33) are rotatably connected to the support plate (31). A plurality of strip-shaped inner grooves (34) are annularly and equidistantly formed on the partition plate (32). A limiting block (35) and a pushing block (36) are fixedly connected to the connecting disk (33). A placement frame (37) is rotatably connected to the inner cavity of the processing equipment main body (1). A plurality of triangular holes (38) are annularly and equidistantly formed on the placement frame (37). A plurality of cavity blocks (39) are detachably connected to the placement frame (37) by bolts. A plurality of air guide covers (310) are symmetrically and annularly and equidistantly fixedly connected to the outer wall of the placement frame (37). A servo motor (311) is fixedly installed on the processing equipment main body (1).

2. The device for treating waste gas containing dichloromethane according to claim 1, characterized in that, A plurality of arc-shaped inner grooves are annularly and equidistantly formed on the partition plate (32), and the number of arc-shaped inner grooves is equal to the number of strip-shaped inner grooves (34). The limiting block (35) is adapted to each arc-shaped inner groove, and the pushing block (36) is adapted to each strip-shaped inner groove (34). The output shaft of the servo motor (311) is fixedly connected to the connecting disk (33).

3. The device for treating waste gas containing dichloromethane according to claim 1, wherein, Activated carbon is contained in each of the cavity blocks (39). A plurality of ventilation holes are provided on the surface of each cavity block (39). The number of cavity blocks (39) is equal to the number of strip-shaped inner grooves (34). The number of air guide covers (310) on the same side is equal to the number of triangular holes (38) on the same side, and the total number of air guide covers (310) and triangular holes (38) is twice the number of strip-shaped inner grooves (34). The shape of each air guide cover (310) is a "frustum".

4. A device for treating waste gas containing dichloromethane according to claim 1, characterized in that, A docking component is provided in the processing equipment main body (1). The docking component includes four transverse grooves (41) symmetrically formed in the inner cavity of the processing equipment main body (1). A first rack (42) is slidably connected to each of the upper two transverse grooves (41). A second rack (43) is slidably connected to each of the lower two transverse grooves (41). Two docking pipes one (44) are fixedly connected to each first rack (42). Two docking pipes two (45) are fixedly connected to each second rack (43). A gear (46) is rotatably connected to the inner cavity of the processing equipment main body (1). A long strip plate (47) is fixedly connected to one of the second racks (43). A crank (48) is rotatably connected to one side of the inner cavity of the processing equipment main body (1) close to the gear (46).

5. The device for treating waste gas containing dichloromethane according to claim 4, characterized in that, A C-shaped rod is fixedly connected between the two first racks (42) and the two second racks (43). The gear (46) is meshed with the adjacent first rack (42) and second rack (43). The crank (48) is adapted to the long strip plate (47). The crank (48) is fixedly connected to the limiting block (35).

6. The device for treating waste gas containing dichloromethane according to claim 4, wherein, A gasket is provided between each of the docking pipes one (44) and the adjacent docking pipe two (45), and the docking pipe one (44) and the docking pipe two (45) are adapted to the adjacent air guide hood (310).

7. The device for treating waste gas containing dichloromethane according to claim 1, wherein An air intake assembly is provided in the main body (1) of the processing device. The air intake assembly includes a drying pipe (51), a Y-shaped pipe (52), a connecting pipe (53), and a discharge pipe (54) that are connected to the inside of the main body (1) of the processing device. The drying pipe (51) is connected to a heating box (55), the Y-shaped pipe (52) is connected to a storage box (56), a flexible airbag (57) and a pressure-sensitive switch (58) are fixedly connected inside the storage box (56), and an air extraction fan (59) is connected to both the drying pipe (51) and the Y-shaped pipe (52).

8. The device for treating waste gas containing dichloromethane according to claim 7, wherein Electromagnetic valves are provided on both the drying pipe (51) and the Y-shaped pipe (52), heating wires are provided inside the heating box (55), and an electronically controlled timing valve is provided inside the storage box (56).

9. The device for treating waste gas containing dichloromethane according to claim 7, characterized in that, The drying pipe (51), the Y-shaped pipe (52), the connecting pipe (53), and the discharge pipe (54) are all adapted to the adjacent docking pipe one (44) and docking pipe two (45).

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