Intelligent treatment device and method for waste gas generated in production of p-toluenesulfonyl isocyanate

Abstract

The invention discloses an intelligent treatment device and method for waste gas generated in p-toluenesulfonyl isocyanate production, and relates to the technical field of waste gas treatment. According to the intelligent treatment device and method for the waste gas generated in p-toluenesulfonyl isocyanate production, through mutual cooperation of the spray tower, the activated carbon purification barrel mechanism, the exhaust pipe and the hot air mechanism, soluble pollutants in the waste gas generated in p-toluenesulfonyl isocyanate production can be removed through the spray tower, meanwhile, particulate matter in the waste gas can be removed, and the waste gas can be recycled. Then, the waste gas enters the activated carbon purification barrel mechanism, organic pollutants in the waste gas are adsorbed through activated carbon, deep purification of the waste gas is achieved, the waste gas purification barrel mechanism is matched with the hot air mechanism, organic matter on the surfaces of activated carbon particles can be effectively removed in time through the high-temperature regeneration principle, and regeneration of the activated carbon is achieved; and efficient cooperation of waste gas treatment and activated carbon regeneration is ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of waste gas treatment, and specifically to an intelligent waste gas treatment device and method for the waste gas produced in the production of tosyl isocyanate. Background Art

[0002] In the chemical industry, tosyl isocyanate (abbreviated as TOSCI) is a key fine chemical raw material, which is used in paint making, polyurethane synthesis, and the preparation of pharmaceutical and pesticide intermediates. However, harmful waste gas is generated during the production of TOSCI. Direct emission will seriously harm the environment and human health. To solve this problem, an intelligent waste gas treatment device has been developed to reduce the emission of harmful substances and protect the ecological environment. When treating these waste gases, activated carbon has strong adsorption ability due to its porous structure and can effectively purify organic molecules and pollutants in the waste gas. This technology is widely used in the advanced environmental protection industry.

[0003] Referring to the VOC waste gas treatment device disclosed in the patent application with the publication number CN219252138U, by optimizing and improving the existing VOC waste gas treatment device, an air duct mechanism is designed in each activated carbon drawer, which can introduce the VOC waste gas entering the purification box into the center of the activated carbon drawer through the vertical air duct and the horizontal air duct, ensuring that the activated carbon particles buried in the center of the activated carbon drawer can also be in full contact with the waste gas, maximizing the use efficiency of the activated carbon particles and improving the waste gas treatment efficiency of the entire device.

[0004] Based on the comprehensive analysis of the above reference patents, the following defects can be obtained:

[0005] The existing intelligent waste gas treatment device and method for the waste gas produced in the production of tosyl isocyanate usually use activated carbon particles to adsorb organic pollutants in the waste gas to complete the purification of the waste gas, and then use high-temperature hot air to regenerate the activated carbon. However, the position of the activated carbon particles in the device is relatively fixed. During the purification process, not only is the contact with the waste gas insufficient, resulting in limited purification efficiency, but also the contact effect with the high-temperature hot air is affected during the regeneration process of the activated carbon, resulting in the fact that some activated carbon particles may not be effectively regenerated. It is difficult to turn the activated carbon particles in a timely and automatic manner so that the activated carbon particles at each position can be in in-depth contact with the waste gas or high-temperature hot air. Therefore, it is necessary to provide an intelligent waste gas treatment device and method for the waste gas produced in the production of tosyl isocyanate to solve the above technical problems. Summary of the Invention

[0006] In view of the deficiencies of the prior art, the present invention provides an intelligent treatment device and method for the waste gas produced in the production of p-toluenesulfonyl isocyanate, which solves the problems that the position of the activated carbon particles in the device is relatively fixed, not only the contact with the waste gas is insufficient during the purification process, resulting in limited purification efficiency, but also the contact effect with the high-temperature hot air is affected during the regeneration process of the activated carbon, resulting in the possibility that some activated carbon particles may not be effectively regenerated, and it is difficult to turn the activated carbon particles in a timely and automatic manner, so that the activated carbon particles at each position can be in-depth contact with the waste gas or high-temperature hot air.

[0007] To achieve the above objectives, the present invention is realized through the following technical solutions: An intelligent treatment device for the waste gas produced in the production of p-toluenesulfonyl isocyanate, comprising:

[0008] A spray tower, placed on the ground, is used to remove soluble pollutants in the waste gas produced in the production of p-toluenesulfonyl isocyanate, and at the same time remove particulate matter in the waste gas;

[0009] An activated carbon purification cylinder mechanism, placed on the ground through multiple legs, uses activated carbon to adsorb organic pollutants in the waste gas produced in the production of p-toluenesulfonyl isocyanate, and automatically removes the organic matter on the surface of the activated carbon by using the high-temperature regeneration principle to complete the regeneration of the activated carbon. The bottom left of the activated carbon purification cylinder mechanism is fixedly connected to the top of the spray tower through a gas guide pipe;

[0010] An exhaust pipe, fixedly connected to the top of the activated carbon purification cylinder mechanism, is used to discharge the purified gas;

[0011] A hot air mechanism, fixedly arranged at the lower part of the rear end of the activated carbon purification cylinder mechanism, is used to convey high-temperature hot air into the activated carbon purification cylinder mechanism to decompose the organic matter on the surface of the activated carbon;

[0012] The activated carbon purification cylinder mechanism includes:

[0013] A drive shaft assembly, three activated carbon storage assemblies, and a servo motor. The servo motor drives the drive shaft assembly to intermittently rotate by a set angle to switch the positions between adjacent two activated carbon storage assemblies, uses one activated carbon storage assembly to complete the purification of the waste gas, and at the same time performs the activated carbon regeneration operation on another activated carbon storage assembly.

[0014] Preferably, the activated carbon purification cylinder mechanism further includes an outer cylinder. A receiving tray is fixedly arranged between the side walls in the middle of the inner cavity of the outer cylinder. An air outlet is formed in the upper right side of the top of the receiving tray. An air inlet hopper is fixedly arranged on the lower right side of the bottom of the receiving tray. A solenoid valve is fixedly arranged on the upper part of the air inlet hopper. The drive shaft assembly is rotatably arranged between the upper and lower walls in the middle of the inner cavity of the receiving tray. The three activated carbon storage components are evenly and fixedly arranged in a circle on the side wall of the drive shaft assembly. The upper and lower walls of each activated carbon storage component are in contact with the upper and lower walls of the inner cavity of the receiving tray. A hot air inlet pipe is fixedly communicated with the rear end of the bottom of the receiving tray. The rear end of the hot air inlet pipe fixedly penetrates the rear wall of the outer cylinder and is fixedly communicated with the air delivery end of the hot air mechanism. A exhaust air pipe is fixedly communicated with the rear end of the top of the receiving tray. The rear end of the exhaust air pipe fixedly penetrates the rear wall of the outer cylinder. A bent pipe is fixedly communicated on the right side of the exhaust air pipe and outside the outer cylinder. A branch pipe is fixedly communicated on the left side of the exhaust air pipe and outside the outer cylinder. Two air inlet holes I are formed in the bottom of the receiving tray. Two air outlet holes I are formed in the bottom of the receiving tray. The bottom of the bent pipe is fixedly connected to the bottom of the receiving tray and communicated with the two air inlet holes I. Two outlet pipes are fixedly arranged at the bottom of the receiving tray. The front ends of the two outlet pipes are respectively communicated with the two air outlet holes I. The rear ends of the two outlet pipes both fixedly penetrate the rear wall of the outer cylinder. The servo motor is fixedly arranged in the middle of the top of the receiving tray. The output shaft of the servo motor penetrates the top of the receiving tray and is fixedly connected to the top of the drive shaft assembly. A cover body sleeving the servo motor is fixedly arranged on the top of the receiving tray.

[0015] Preferably, the drive shaft assembly includes a rotating shaft. The rotating shaft is rotatably connected between the upper and lower walls in the inner cavity of the receiving tray. A chassis is fixedly sleeved on the outer wall of the lower part of the rotating shaft. The bottom of the chassis is in contact with the bottom of the inner cavity of the receiving tray. Three air inlet holes II are evenly formed in a circle inside the chassis. Three air outlet holes II are evenly formed in a circle outside the chassis.

[0016] Preferably, each activated carbon storage component includes an upper purification component. A lower purification component is arranged below the upper purification component. The structures of the upper purification component and the lower purification component are completely the same. The middle of the bottom of the upper purification component is fixedly connected to the middle of the top of the lower purification component through a rod body. The rod body is fixedly connected to the side wall of the rotating shaft through a bracket. The upper purification component and the lower purification component are fixedly communicated through an inclined pipe. Two connecting pipes are fixedly arranged between the upper purification component and the lower purification component. The middle of one of the connecting pipes is fixedly connected to the top of the chassis through an air inlet hose and communicated with the adjacent air inlet hole II. The middle of the other connecting pipe is fixedly connected to the top of the chassis through an air outlet hose and communicated with the adjacent air outlet hole II.

[0017] Preferably, the upper purification component includes a holding tray. A square frame is fixedly arranged between the upper and lower walls in the middle of the inner cavity of the holding tray. Four activated carbon adsorption components are evenly and fixedly arranged between the outer wall of the square frame and the inner wall of the holding tray. The four activated carbon adsorption components equally divide the internal space of the holding tray into four relatively independent diversion spaces.

[0018] Preferably, a first partition board is fixedly arranged between the outer wall of the square frame and the inner wall of the holding tray. The first partition board is located in one of the diversion spaces. Two flow blocking plates are fixedly arranged in each of the other three diversion spaces. An air inlet hole is opened at the bottom of the holding tray. The air inlet hole is located on one side of the first partition board. An air outlet hole is opened at the top of the holding tray. The air outlet hole is located on the other side of the first partition board.

[0019] Preferably, a hollow ring is fixedly sleeved outside the holding tray. A second partition board is fixedly arranged between the inner wall of the hollow ring and the outer wall of the holding tray. The inside of the inclined tube is communicated with the air inlet hole and the air outlet hole in the lower purification component. The two connecting tubes are respectively located on both sides of the second partition board and are communicated with the inside of the hollow ring.

[0020] Preferably, each activated carbon adsorption component includes a containing box. The containing box is fixedly connected between the inner wall of the holding tray and the outer wall of the square frame. A plurality of through holes are opened on both side walls of the containing box. A placing box located in the hollow ring is arranged on one side of the containing box. The placing box is fixedly connected to the outer wall of the holding tray. A shaft rod is rotatably arranged between the two side walls of the inner cavity of the containing box. A plurality of arc-shaped blades are evenly and fixedly arranged on the outer wall of the shaft rod. The plurality of arc-shaped blades are spirally distributed outside the shaft rod.

[0021] Preferably, one end of the shaft rod penetrates through the placing box and is rotatably connected to the inner wall of the placing box. A large gear located in the placing box is fixedly sleeved on the outer part of the shaft rod. A short shaft is rotatably arranged between the inner walls of the placing box. A small gear is fixedly sleeved on the outer part of the short shaft. The small gear meshes with the large gear. The end of the short shaft far away from the containing box penetrates through the outer wall of the placing box and is rotatably connected to the inner wall of the hollow ring. An impeller located in the hollow ring is fixedly sleeved on the outer part of the short shaft.

[0022] The present invention also provides an intelligent treatment method for the waste gas produced in the production of p-toluenesulfonyl isocyanate. By using the intelligent treatment device for the waste gas produced in the production of p-toluenesulfonyl isocyanate, the specific method includes the following steps:

[0023] Step 1: Introduce the waste gas produced in the production of p-toluenesulfonyl isocyanate into the spray tower. The spray liquid sprayed down from the top of the tower contacts the waste gas to remove the soluble pollutants in the waste gas and at the same time remove the particulate matter in the waste gas, completing the preliminary purification of the waste gas.

[0024] Step 2. Then, the gas enters the activated carbon purification cylinder mechanism through the air duct. The activated carbon purification cylinder mechanism adsorbs the organic pollutants in the gas to complete the deep purification of the waste gas. The purified gas is discharged outward through the exhaust pipe.

[0025] Step 3. During the process of the activated carbon purification cylinder mechanism deeply purifying the waste gas, it cooperates with the hot air mechanism. The hot air mechanism conveys high-temperature hot air into the activated carbon purification cylinder mechanism, and uses the high-temperature hot air to heat the activated carbon particles, so that the adsorbate in the micropores of the activated carbon particles automatically detaches from the activated carbon when encountering high temperature, completing the regeneration of the activated carbon particles and restoring the adsorption capacity of the activated carbon for the next adsorption process.

[0026] Beneficial effects

[0027] The present invention provides an intelligent waste gas treatment device and method for the production of p-toluenesulfonyl isocyanate. Compared with the prior art, it has the following beneficial effects:

[0028] 1. The intelligent waste gas treatment device and method for the production of p-toluenesulfonyl isocyanate, through the mutual cooperation among the spray tower, the activated carbon purification cylinder mechanism, the exhaust pipe and the hot air mechanism, can use the spray tower to remove the soluble pollutants in the waste gas from the production of p-toluenesulfonyl isocyanate, and at the same time remove the particulate matter in the waste gas to achieve the preliminary purification of the waste gas. Then, the waste gas enters the activated carbon purification cylinder mechanism, and the activated carbon adsorbs the organic pollutants in the waste gas to achieve the deep purification of the waste gas. It cooperates with the hot air mechanism, and can timely and effectively remove the organic matter on the surface of the activated carbon particles by using the high-temperature regeneration principle, realizing the regeneration of the activated carbon, and ensuring the efficient coordination of waste gas treatment and activated carbon regeneration.

[0029] 2. The intelligent waste gas treatment device and method for the production of p-toluenesulfonyl isocyanate, through the mutual cooperation among the air outlet, the air inlet hopper, the drive shaft assembly, the activated carbon storage assembly, the hot air inlet pipe, the elbow pipe and the servo motor, uses the servo motor to drive the drive shaft assembly to intermittently rotate a set angle, and the three activated carbon storage assemblies revolve accordingly. One of the activated carbon storage assemblies is rotated to the rightmost side, and the inside of this activated carbon storage assembly is in a state of being connected to the air outlet and the air inlet hopper. At this time, this activated carbon storage assembly is switched to the state of purifying the waste gas in the purification outer cylinder. At the same time, another activated carbon storage assembly is rotated to the rear, so that the inside of this activated carbon storage assembly is in a state of being connected to the hot air inlet pipe and the exhaust pipe. At this time, this activated carbon storage assembly is switched to the activated carbon regeneration state, flexibly switching the purification and regeneration states without shutting down the machine, ensuring the continuity and efficiency of waste gas treatment, and realizing the long-term recycling of activated carbon.

[0030] 3. Intelligent treatment device and method for waste gas produced in the production of p-toluenesulfonyl isocyanate. Through the mutual cooperation among the placing tray, multiple activated carbon adsorption components, partition one, lower purification component and inclined tube, the waste gas entering the outer cylinder first enters the lower purification component in the lower part through the air inlet hopper, and then enters the upper purification component through the inclined tube. Since there are multiple activated carbon adsorption components in the upper purification component, and the structures of the lower purification component and the upper purification component are the same, through the cooperation of the activated carbon adsorption components layer by layer, it is ensured that the waste gas can fully contact the activated carbon during the flowing process, and the organic pollutants in the waste gas are thoroughly adsorbed, completing the deep purification of the waste gas. This not only optimizes the air flow path but also improves the space utilization rate.

[0031] 4. Intelligent treatment device and method for waste gas produced in the production of p-toluenesulfonyl isocyanate. Through the mutual cooperation among the shaft rod, arc-shaped blades, large gear, small gear and impeller, when one activated carbon placing component completes the purification of the waste gas and at the same time conveys high-temperature hot air into another activated carbon placing component for activated carbon regeneration operation, finally part of the hot air is cleverly guided to the rightmost and rear activated carbon placing components through the elbow pipe and air inlet hole one, flowing through the inside of the hollow ring. During this process, the impeller is blown, which can drive several arc-shaped blades to rotate. This not only realizes the full utilization of the hot air but also reduces the energy loss. The rotating arc-shaped blades can timely turn over the activated carbon particles in the containing box, enabling the activated carbon particles in the rightmost activated carbon placing component to fully contact the passing waste gas, and the activated carbon particles in the rear activated carbon placing component to fully contact the passing high-temperature hot air. This intelligent turning operation ensures that both the waste gas during the purification process and the high-temperature hot air during the regeneration process can have comprehensive and in-depth contact with the activated carbon particles, improving the overall utilization rate and regeneration efficiency of the activated carbon.

[0032] 5. Intelligent treatment device and method for waste gas produced in the production of p-toluenesulfonyl isocyanate. Since several arc-shaped blades are spirally distributed outside the shaft rod, the unique geometric shape makes the turning action more continuous and uniform. Compared with arc-shaped blades distributed linearly or radially, it can more effectively turn over the activated carbon particles, prevent caking between the particles, ensure that each activated carbon particle can be fully utilized, and improve the overall utilization rate of the activated carbon. The setting of the baffle plate can extend the contact time of the activated carbon particles in each containing box with the waste gas or high-temperature hot air. More contact time means that the activated carbon can more effectively adsorb the pollutants in the waste gas or release the adsorbed pollutants during the regeneration process, improving the purification or regeneration efficiency.

[0033] Other advantages, objects, and features of the present invention will be set forth in part in the following description, and in part will be obvious to those skilled in the art upon examination of the following, or may be learned by practice of the present invention. The objects and other advantages of the present invention may be realized and obtained by the following description of the specification. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 is a perspective view of the present invention;

[0035] Figure 2 is a perspective view of the activated carbon purification cylinder mechanism of the present invention;

[0036] Figure 3 is a first sectional perspective view of the activated carbon purification cylinder mechanism of the present invention;

[0037] Figure 4 is a second sectional perspective view of the activated carbon purification cylinder mechanism of the present invention;

[0038] Figure 5 is a sectional perspective view of the receiving tray of the present invention;

[0039] Figure 6 is an exploded view of the receiving tray, drive shaft assembly, activated carbon storage assembly, and exhaust duct of the present invention;

[0040] Figure 7 is a perspective view of the receiving tray of the present invention;

[0041] Figure 8 is a first assembly view of the drive shaft assembly and the activated carbon storage assembly of the present invention;

[0042] Figure 9 is a second assembly view of the drive shaft assembly and the activated carbon storage assembly of the present invention;

[0043] Figure 10 is an exploded view of the drive shaft assembly and the activated carbon storage assembly of the present invention;

[0044] Figure 11 is a perspective view of the activated carbon storage assembly of the present invention;

[0045] Figure 12 is an exploded view of the activated carbon storage assembly of the present invention;

[0046] Figure 13 is a sectional perspective view of the upper purification assembly of the present invention;

[0047] Figure 14 is a sectional perspective view of the activated carbon adsorption assembly of the present invention.

[0048] In the figure: 1. Spray tower; 2. Air duct; 3. Activated carbon purification cylinder mechanism; 31. Outer cylinder; 32. Accommodating tray; 33. Air outlet; 34. Air inlet hopper; 35. Solenoid valve; 36. Drive shaft assembly; 361. Rotating shaft; 362. Chassis; 363. Second air inlet hole; 364. Second air outlet hole; 37. Activated carbon containing assembly; 371. Upper purification assembly; 3711. Placing tray; 3712. Square frame; 3713. Activated carbon adsorption assembly; a1. Accommodating box; a2. Through hole; a3. Placing box; a4. Shaft rod; a5. Arc blade; a6. Large gear; a7. Short shaft; a8. Small gear; a9. Impeller; 3714. First partition; 3715. Baffle; 3716. Air inlet hole; 3717. Air outlet hole; 3718. Hollow ring; 3719. Second partition; 372. Lower purification assembly; 373. Support; 374. Inclined pipe; 375. Connecting pipe; 376. Air outlet hose; 377. Air inlet hose; 38. Hot air inlet pipe; 39. Exhaust pipe; 310. Elbow pipe; 311. Branch pipe; 312. Outlet pipe; 313. Servo motor; 314. Cover body; 315. First air inlet hole; 316. First air outlet hole; 4. Exhaust pipe; 5. Hot air mechanism. Detailed implementation manners

[0049] 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.

[0050] The present invention provides two technical solutions:

[0051] As Figure 1 and Figure 6 shown in the first embodiment: An intelligent treatment device for waste gas produced in the production of p-toluenesulfonyl isocyanate, including:

[0052] A spray tower 1, placed on the ground, used to remove soluble pollutants in the waste gas produced in the production of p-toluenesulfonyl isocyanate, and at the same time remove particulate matter in the waste gas;

[0053] An activated carbon purification cylinder mechanism 3, placed on the ground through multiple legs, using activated carbon to adsorb organic pollutants in the waste gas produced in the production of p-toluenesulfonyl isocyanate, and automatically removing the organic matter on the surface of the activated carbon by using the high-temperature regeneration principle to complete the regeneration of the activated carbon. The left bottom of the activated carbon purification cylinder mechanism 3 is fixedly connected to the top of the spray tower 1 through an air duct 2;

[0054] An exhaust pipe 4, fixedly connected to the top of the activated carbon purification cylinder mechanism 3, used to discharge the purified gas;

[0055] The hot air mechanism 5 is fixedly arranged at the lower part of the rear end of the activated carbon purification cylinder mechanism 3 and is used to convey high-temperature hot air into the activated carbon purification cylinder mechanism 3 to decompose the organic substances on the surface of the activated carbon.

[0056] The activated carbon purification cylinder mechanism 3 includes:

[0057] A drive shaft assembly 36, three activated carbon storage assemblies 37, and a servo motor 313. The servo motor 313 drives the drive shaft assembly 36 to intermittently rotate by a set angle to switch the positions between two adjacent activated carbon storage assemblies 37, uses one activated carbon storage assembly 37 to purify the waste gas, and simultaneously performs the activated carbon regeneration operation on another activated carbon storage assembly 37.

[0058] Through the mutual cooperation among the spray tower 1, the activated carbon purification cylinder mechanism 3, the exhaust pipe 4, and the hot air mechanism 5, the spray tower 1 can remove the soluble pollutants in the waste gas produced by the production of p-toluenesulfonyl isocyanate and simultaneously remove the particulate matter in the waste gas to achieve the preliminary purification of the waste gas. Then, the waste gas enters the activated carbon purification cylinder mechanism 3, and the activated carbon adsorbs the organic pollutants in the waste gas to achieve the deep purification of the waste gas. In cooperation with the hot air mechanism 5, the high-temperature regeneration principle can timely and effectively remove the organic substances on the surface of the activated carbon particles to realize the regeneration of the activated carbon, ensuring the efficient coordination of waste gas treatment and activated carbon regeneration.

[0059] Such as Figures 2 to 5 and Figures 7 to 14The second embodiment is shown. The main difference from the first embodiment is that for the intelligent waste gas treatment device for the production of p-toluenesulfonyl isocyanate, the activated carbon purification cylinder mechanism 3 further includes an outer cylinder 31. Between the side walls in the middle of the inner cavity of the outer cylinder 31, a receiving tray 32 is fixedly arranged. On the top right side of the receiving tray 32, an air outlet 33 is opened. On the bottom right side of the receiving tray 32, an air inlet hopper 34 is fixedly arranged. On the upper part of the air inlet hopper 34, a solenoid valve 35 is fixedly arranged. The drive shaft assembly 36 is rotatably arranged between the upper and lower walls in the middle of the inner cavity of the receiving tray 32. Three activated carbon containing assemblies 37 are evenly and fixedly arranged in a circle on the side wall of the drive shaft assembly 36. The upper and lower walls of each activated carbon containing assembly 37 are in contact with the upper and lower walls of the inner cavity of the receiving tray 32. At the rear end of the bottom of the receiving tray 32, a hot air inlet pipe 38 is fixedly communicated. The rear end of the hot air inlet pipe 38 fixedly penetrates the rear wall of the outer cylinder 31 and is fixedly communicated with the air delivery end of the hot air mechanism 5. At the rear end of the top of the receiving tray 32, an exhaust air pipe 39 is fixedly communicated. The rear end of the exhaust air pipe 39 fixedly penetrates the rear wall of the outer cylinder 31. On the right side of the exhaust air pipe 39 and outside the outer cylinder 31, an elbow pipe 310 is fixedly communicated. On the left side of the exhaust air pipe 39 and outside the outer cylinder 31, a branch pipe 311 is fixedly communicated. Two air inlet holes one 315 are opened at the bottom of the receiving tray 32. Two air outlet holes one 316 are opened at the bottom of the receiving tray 32. The bottom of the elbow pipe 310 is fixedly connected to the bottom of the receiving tray 32 and is communicated with the two air inlet holes one 315. Two outlet pipes 312 are fixedly arranged at the bottom of the receiving tray 32. The front ends of the two outlet pipes 312 are respectively communicated with the two air outlet holes one 316. The rear ends of the two outlet pipes 312 both fixedly penetrate the rear wall of the outer cylinder 31. A servo motor 313 is fixedly arranged in the middle of the top of the receiving tray 32. The output shaft of the servo motor 313 penetrates the top of the receiving tray 32 and is fixedly connected to the top of the drive shaft assembly 36. A cover body 314 sleeved outside the servo motor 313 is fixedly arranged at the top of the receiving tray 32. The drive shaft assembly 36 includes a rotating shaft 361. The rotating shaft 361 is rotatably connected between the upper and lower walls of the inner cavity of the receiving tray 32. A chassis 362 is fixedly sleeved on the lower outer wall of the rotating shaft 361. The bottom of the chassis 362 is in contact with the bottom of the inner cavity of the receiving tray 32. Three air inlet holes two 363 are evenly opened in a circle inside the chassis 362. Three air outlet holes two 364 are evenly opened in a circle outside the chassis 362. Each activated carbon containing assembly 37 includes an upper purification component 371. A lower purification component 372 is arranged below the upper purification component 371. The structures of the upper purification component 371 and the lower purification component 372 are completely the same. The middle of the bottom of the upper purification component 371 and the middle of the top of the lower purification component 372 are fixedly connected by a rod body. The rod body and the side wall of the rotating shaft 361 are fixedly connected by a bracket 373. The upper purification component 371 and the lower purification component 372 are fixedly communicated by an inclined pipe 374. Two connecting pipes 375 are fixedly arranged between the upper purification component 371 and the lower purification component 372.The middle part of one connecting pipe 375 is fixedly connected to the top of the chassis 362 through an air inlet hose 377 and is communicated with an adjacent second air inlet hole 363. The middle part of the other connecting pipe 375 is fixedly connected to the top of the chassis 362 through an air outlet hose 376 and is communicated with an adjacent second air outlet hole 364. The upper purification component 371 includes a containing tray 3711. A square frame 3712 is fixedly arranged between the upper and lower walls in the inner cavity of the containing tray 3711. Four activated carbon adsorption components 3713 are evenly fixedly arranged between the outer wall of the square frame 3712 and the inner wall of the containing tray 3711. The four activated carbon adsorption components 3713 divide the internal space of the containing tray 3711 into four relatively independent flow guiding spaces. A first partition plate 3714 is fixedly arranged between the outer wall of the square frame 3712 and the inner wall of the containing tray 3711. The first partition plate 3714 is located in one of the flow guiding spaces. Two flow blocking plates 3715 are fixedly arranged in each of the other three flow guiding spaces. An air inlet hole 3716 is opened at the bottom of the containing tray 3711. The air inlet hole 3716 is located on one side of the first partition plate 3714. An air outlet hole 3717 is opened at the top of the containing tray 3711. The air outlet hole 3717 is located on the other side of the first partition plate 3714. A hollow ring 3718 is fixedly sleeved outside the containing tray 3711. A second partition plate 3719 is fixedly arranged between the inner wall of the hollow ring 3718 and the outer wall of the containing tray 3711. The inside of the inclined pipe 374 is communicated with the air inlet hole 3716 and the air outlet hole 3717 in the lower purification component 372. The two connecting pipes 375 are respectively located on both sides of the second partition plate 3719 and are communicated with the inside of the hollow ring 3718. Each activated carbon adsorption component 3713 includes a containing box a1. Activated carbon particles are filled in the inside of the containing box a1. The containing box a1 is fixedly connected between the inner wall of the containing tray 3711 and the outer wall of the square frame 3712. A plurality of through holes a2 are opened on both side walls of the containing box a1. A placement box a3 located in the hollow ring 3718 is arranged on one side of the containing box a1. The placement box a3 is fixedly connected to the outer wall of the containing tray 3711. A shaft rod a4 is rotatably arranged between the two side walls of the inner cavity of the containing box a1. A plurality of arc-shaped blades a5 are evenly fixedly arranged on the outer wall of the shaft rod a4. The plurality of arc-shaped blades a5 are spirally distributed outside the shaft rod a4. One end of the shaft rod a4 penetrates through the placement box a3 and is rotatably connected to the inner wall of the placement box a3. A large gear a6 located in the placement box a3 is fixedly sleeved on the outer part of the shaft rod a4. A short shaft a7 is rotatably arranged between the inner walls of the placement box a3. A small gear a8 is fixedly sleeved on the outer part of the short shaft a7. The small gear a8 meshes with the large gear a6. One end of the short shaft a7 far away from the containing box a1 penetrates through the outer wall of the placement box a3 and is rotatably connected to the inner wall of the hollow ring 3718. An impeller a9 located in the hollow ring 3718 is fixedly sleeved on the outer part of the short shaft a7.,

[0060] Through the mutual cooperation among the air outlet 33, the air inlet hopper 34, the drive shaft assembly 36, the activated carbon storage assembly 37, the hot air inlet pipe 38, the elbow pipe 310 and the servo motor 313, the servo motor 313 is used to drive the drive shaft assembly 36 to intermittently rotate by a set angle. The three activated carbon storage assemblies 37 revolve accordingly, and one of the activated carbon storage assemblies 37 is rotated to the far right. The inside of this activated carbon storage assembly 37 is in a state of being connected to the air outlet 33 and the air inlet hopper 34. At this time, this activated carbon storage assembly 37 is switched to the state of purifying the waste gas in the purification outer cylinder 31. At the same time, another activated carbon storage assembly 37 is rotated to the rear, so that the inside of this activated carbon storage assembly 37 is in a state of being connected to the hot air inlet pipe 38 and the exhaust pipe 39. At this time, this activated carbon storage assembly 37 is switched to the activated carbon regeneration state. The purification and regeneration states can be flexibly switched without shutting down the machine, ensuring the continuity and high efficiency of waste gas treatment, and realizing the long-term recycling of activated carbon. Through the mutual cooperation among the storage tray 3711, the multiple activated carbon adsorption assemblies 3713, the partition plate 1 3714, the lower purification assembly 372 and the inclined pipe 374, the waste gas entering the outer cylinder 31 first enters the lower purification assembly 372 through the air inlet hopper 34, and then enters the upper purification assembly 371 through the inclined pipe 374. Since there are multiple activated carbon adsorption assemblies 3713 in the upper purification assembly 371, and the lower purification assembly 372 has the same structure as the upper purification assembly 371, through the cooperation of the layers of activated carbon adsorption assemblies 3713, it is ensured that the waste gas can fully contact the activated carbon during the flowing process, and the organic pollutants in the waste gas are thoroughly adsorbed, completing the deep purification of the waste gas. This not only optimizes the air flow path but also improves the space utilization rate. Through the mutual cooperation among the shaft rod a4, the arc-shaped blade a5, the large gear a6, the small gear a8 and the impeller a9, when one activated carbon storage assembly 37 completes the purification of the waste gas and at the same time conveys high-temperature hot air into another activated carbon storage assembly 37 for activated carbon regeneration operation, finally part of the hot air is cleverly guided to the activated carbon storage assemblies 37 at the far right and the rear through the elbow pipe 310 and the air inlet hole 1 315, flowing through the inside of the hollow ring 3718. During the process, the impeller a9 is blown, which can drive several arc-shaped blades a5 to rotate. This not only realizes the full utilization of hot air but also reduces energy loss. The rotating arc-shaped blades a5 can timely turn over the activated carbon particles in the accommodating box a1, so that the activated carbon particles in the activated carbon storage assembly 37 at the far right can fully contact the passing waste gas, and the activated carbon particles in the activated carbon storage assembly 37 at the rear can fully contact the passing high-temperature hot air. This intelligent turning operation ensures that both the waste gas during the purification process and the high-temperature hot air during the regeneration process can achieve comprehensive and in-depth contact with the activated carbon particles, improving the overall utilization rate and regeneration efficiency of the activated carbon. Since several arc-shaped blades a5 are spirally distributed outside the shaft rod a4, the unique geometric shape makes the turning action more continuous and uniform.Compared with the straight or radially distributed arc-shaped blades a5, it can more effectively turn the activated carbon particles, prevent caking between the particles, ensure that each activated carbon particle can be fully utilized, improve the overall utilization rate of the activated carbon, and the setting of the baffle 3715 can extend the contact time between the activated carbon particles in each receiving box a1 and the waste gas or hot air, and more contact time means that the activated carbon can more effectively adsorb the pollutants in the waste gas or release the adsorbed pollutants during the regeneration process, improving the purification or regeneration efficiency.

[0061] The embodiment of the present invention also provides an intelligent treatment method for the waste gas produced in the production of p-toluenesulfonyl isocyanate. An intelligent treatment device for the waste gas produced in the production of p-toluenesulfonyl isocyanate is used. The specific method includes the following steps:

[0062] Step 1: Introduce the waste gas produced in the production of p-toluenesulfonyl isocyanate into the spray tower 1. The spray tower 1 is a prior art well-known to those skilled in the art. Its core working principle is to use the spray liquid uniformly sprayed from the top of the tower to fully physically and chemically interact with the rising waste gas. Specifically, the spray liquid sprayed from the top of the tower contacts the waste gas to remove the soluble pollutants in the waste gas and at the same time remove the particulate matter in the waste gas, completing the preliminary purification of the waste gas;

[0063] Step 2: Then, the gas enters the outer cylinder 31 through the air duct 2. The servo motor 313 is started to drive the drive shaft assembly 36 to rotate intermittently by a set angle. The three activated carbon storage components 37 revolve accordingly, and one of the activated carbon storage components 37 is rotated to the far right. The inside of this activated carbon storage component 37 is in a state of being connected to the air outlet 33 and the air inlet hopper 34. Among them, the air inlet hole 3716 in the lower purification component 372 completely coincides with the top of the air inlet hopper 34, and the air outlet hole 3717 completely coincides with the air outlet 33. Whenever the activated carbon storage component 37 rotates, the solenoid valve 35 will close. When the activated carbon storage component 37 stops rotating, the solenoid valve 35 is opened. At this time, this activated carbon storage component 37 is switched to the state of purifying the waste gas in the outer cylinder 31. The waste gas in the outer cylinder 31 enters the storage tray 3711 in the lower purification component 372 through the air inlet hopper 34 and the air inlet hole 3716 in the lower purification component 372, and then enters the storage tray 3711 in the upper purification component 371 through the inclined pipe 374. During the process of the waste gas flowing through the storage tray 3711, it successively passes through each activated carbon adsorption component 3713 and comes into full contact with the activated carbon particles in the storage box a1. The activated carbon particles adsorb the organic pollutants in the waste gas, and finally the deep purification of the waste gas is completed. The purified gas is discharged through the air outlet 33 and finally discharged outward through the exhaust pipe 4. While one of the activated carbon storage components 37 is rotated to the far right, another activated carbon storage component 37 is rotated to the rear. The inside of the activated carbon storage component 37 rotated to the rear is in a state of being connected to the hot air inlet pipe 38 and the exhaust pipe 39. At this time, for this activated carbon storage component 37, the air inlet hole 3716 in the lower purification component 372 inside it completely coincides with the top of the hot air inlet pipe 38, and the air outlet hole 3717 completely coincides with the bottom of the exhaust pipe 39. At this time, this activated carbon storage component 37 is switched to the activated carbon regeneration state;

[0064] Step 3: After the position of the activated carbon storage component 37 is adjusted, the hot air mechanism 5 operates, and high-temperature hot air is conveyed into the interior of the activated carbon storage component 37 through the hot air inlet pipe 38. The high-temperature hot air enters the storage tray 3711 in the lower purification component 372, and then enters the storage tray 3711 in the upper purification component 371. During the process of the high-temperature hot air flowing through the storage tray 3711, it successively passes through each activated carbon adsorption component 3713, makes full contact with the activated carbon particles in the accommodation box a1, and heats the activated carbon particles. Under the action of the high-temperature air, the organic matter attached to the surface of the activated carbon particles is decomposed and detached from the surface of the activated carbon, and the activated carbon is regenerated. Then, the hot air is discharged through the exhaust pipe 39. Part of it is directly discharged to the outside through the branch pipe 311, and part enters the elbow pipe 310, then passes through the two first air inlet holes 315 and the two second air inlet holes 363 that coincide with the two first air inlet holes 315 respectively, and enters the rightmost activated carbon storage component 37 and the rear activated carbon storage component 37. During this process, the hot air passes through the air inlet hose 377 and the corresponding connecting pipe 375 and enters the hollow ring 3718 in the upper purification component 371 and the lower purification component 372. When flowing through the inside of the hollow ring 3718, it will blow the impeller a9 to rotate. Under the meshing of the small gear a8 and the large gear a6, the shaft rod a4 and the arc-shaped blade a5 will rotate slowly accordingly. The rotating arc-shaped blade a5 timely flips the activated carbon particles in the accommodation box a1, so that the activated carbon particles in the rightmost activated carbon storage component 37 can fully contact the passing waste gas, and the activated carbon particles in the rear activated carbon storage component 37 can fully contact the passing high-temperature hot air, ensuring that both the waste gas during the purification process and the high-temperature hot air during the regeneration process can achieve comprehensive and in-depth contact with the activated carbon particles. Then, the hot air passes through the corresponding connecting pipe 375, the air outlet hose 376, the second air outlet hole 364 and the first air outlet hole 316, and is finally discharged to the outside through the outlet pipe 312. Among them, the hot air mechanism 5 is a prior art well-known to those skilled in the art. The hot air mechanism 5 is composed of an outer box and a hot air mechanism fixedly arranged inside the outer box. After the drive shaft assembly 36 rotates by a set angle, the two first air inlet holes 315 respectively coincide with the corresponding two second air inlet holes 363, and at the same time, the two first air outlet holes 316 respectively coincide with the corresponding two second air outlet holes 364.

[0065] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device.

[0066] Although embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An intelligent waste gas treatment device for the production of p-toluenesulfonyl isocyanate, characterized in that: include: A spray tower, placed on the ground, is used to remove soluble pollutants from the waste gas produced by p-toluenesulfonyl isocyanate production, and also removes particulate matter from the waste gas; The activated carbon purification cartridge mechanism is placed on the ground through a plurality of legs, and uses activated carbon to absorb organic pollutants in the waste gas produced by p-toluenesulfonyl isocyanate, and uses the high-temperature regeneration principle to automatically remove organic matter on the surface of the activated carbon to complete the regeneration of the activated carbon. The left bottom of the activated carbon purification cartridge mechanism is fixedly connected to the top of the spray tower through an air guide pipe; The exhaust pipe is fixedly connected to the top of the activated carbon purification cylinder mechanism and is used to discharge the purified gas; The hot air mechanism is fixedly arranged at the lower rear end of the activated carbon purification cartridge mechanism and is used to deliver high-temperature hot air into the activated carbon purification cartridge mechanism to decompose organic matter on the surface of the activated carbon; The activated carbon purification cartridge mechanism includes: A drive shaft assembly, three activated carbon holding assemblies and a servo motor. The servo motor drives the drive shaft assembly to intermittently rotate at a set angle to switch the position between two adjacent activated carbon holding assemblies. One activated carbon holding assembly is used to purify the exhaust gas, while the other activated carbon holding assembly is regenerated.

2. The intelligent waste gas treatment device for the production of p-toluenesulfonyl isocyanate according to claim 1, characterized in that: The activated carbon purification cartridge mechanism also includes an outer cartridge, a receiving tray is fixedly arranged between the side walls in the middle of the inner cavity of the outer cartridge, an air outlet is opened on the right side of the top of the receiving tray, an air inlet hopper is fixedly arranged on the right side of the bottom of the receiving tray, an electromagnetic valve is fixedly arranged on the upper part of the air inlet hopper, the drive shaft assembly is rotatably arranged between the upper and lower walls in the middle of the inner cavity of the receiving tray, three activated carbon containing assemblies are evenly fixedly arranged in a circle on the side walls of the drive shaft assembly, the upper and lower walls of each activated carbon containing assembly are in contact with the upper and lower walls of the inner cavity of the receiving tray, a hot air inlet pipe is fixedly connected to the rear end of the bottom of the receiving tray, the rear end of the hot air inlet pipe is fixedly passed through the rear wall of the outer cartridge and is fixedly connected to the air delivery end of the hot air mechanism, an exhaust pipe is fixedly connected to the rear end of the top of the receiving tray, and the rear end of the exhaust pipe is fixedly passed through The rear wall of the outer cylinder, the right side of the exhaust pipe and located on the outside of the outer cylinder is fixedly connected with a bent pipe, the left side of the exhaust pipe and located on the outside of the outer cylinder is fixedly connected with a branch pipe, the bottom of the accommodating plate is provided with two air inlet holes, the bottom of the accommodating plate is provided with two air outlet holes, the bottom of the bent pipe is fixedly connected to the bottom of the accommodating plate and is connected with the two air inlet holes, the bottom of the accommodating plate is fixedly provided with two export pipes, the front ends of the two export pipes are respectively connected with the two air outlet holes, and the rear ends of the two export pipes are fixedly passed through the rear wall of the outer cylinder, the servo motor is fixedly provided in the middle of the top of the accommodating plate, the output shaft of the servo motor passes through the top of the accommodating plate and is fixedly connected to the top of the drive shaft assembly, and the top of the accommodating plate is fixedly provided with a cover body sleeved on the outside of the servo motor.

3. The intelligent waste gas treatment device for the production of p-toluenesulfonyl isocyanate according to claim 2, characterized in that: The drive shaft assembly includes a rotating shaft, which is rotatably connected between the upper and lower walls of the inner cavity of the accommodating plate. A chassis is fixedly sleeved on the lower outer wall of the rotating shaft. The bottom of the chassis is in contact with the bottom of the inner cavity of the accommodating plate. Three air inlet holes are evenly arranged in a circle inside the chassis, and three air outlet holes are evenly arranged in a circle outside the chassis.

4. The intelligent waste gas treatment device for the production of p-toluenesulfonyl isocyanate according to claim 3, characterized in that: Each of the activated carbon containing components includes an upper purification component, a lower purification component is arranged below the upper purification component, the structures of the upper purification component and the lower purification component are exactly the same, the middle of the bottom of the upper purification component and the middle of the top of the lower purification component are fixedly connected by a rod body, the rod body and the side wall of the rotating shaft are fixedly connected by a bracket, the upper purification component and the lower purification component are fixedly connected by an inclined pipe, and two connecting pipes are fixedly arranged between the upper purification component and the lower purification component, the middle part of one of the connecting pipes is fixedly connected to the top of the chassis by an air inlet hose and is connected to the adjacent air inlet hole two, and the middle part of the other connecting pipe is fixedly connected to the top of the chassis by an air outlet hose and is connected to the adjacent air outlet hole two.

5. The intelligent waste gas treatment device for the production of p-toluenesulfonyl isocyanate according to claim 4, characterized in that: The upper purification component includes a holding plate, a square frame is fixedly arranged between the upper and lower walls in the middle of the inner cavity of the holding plate, four activated carbon adsorption components are evenly fixedly arranged between the outer wall of the square frame and the inner wall of the holding plate, and the four activated carbon adsorption components divide the internal space of the holding plate into four relatively independent diversion spaces.

6. The intelligent waste gas treatment device for the production of p-toluenesulfonyl isocyanate according to claim 5, characterized in that: A partition plate 1 is fixedly arranged between the outer wall of the square frame and the inner wall of the receiving tray, and the partition plate 1 is located in one of the guide spaces. Two baffle plates are fixedly arranged inside the other three guide spaces. An air inlet hole is provided at the bottom of the receiving tray, and the air inlet hole is located on one side of the partition plate 1. An air outlet hole is provided at the top of the receiving tray, and the air outlet hole is located on the other side of the partition plate 1.

7. The intelligent waste gas treatment device for the production of p-toluenesulfonyl isocyanate according to claim 6, characterized in that: The outer fixed sleeve of the containing plate is provided with a hollow ring, and a partition plate 2 is fixedly arranged between the inner wall of the hollow ring and the outer wall of the containing plate. The interior of the inclined tube is connected with the air inlet hole and the air outlet hole in the lower purification component, and the two connecting pipes are respectively located on both sides of the partition plate 2 and are connected with the interior of the hollow ring.

8. The intelligent waste gas treatment device for the production of p-toluenesulfonyl isocyanate according to claim 7, characterized in that: Each of the activated carbon adsorption components includes a containing box, which is fixedly connected between the inner wall of the containing plate and the outer wall of the square frame. Both side walls of the containing box are provided with a plurality of through holes. A placement box located in a hollow ring is provided on one side of the containing box. The placement box is fixedly connected to the outer wall of the containing plate. An axle rod is rotatably provided between the two side walls of the inner cavity of the containing box. A plurality of arc-shaped blades are evenly and fixedly provided on the outer wall of the axle rod. The plurality of arc-shaped blades are spirally distributed on the outside of the axle rod.

9. The intelligent waste gas treatment device for the production of p-toluenesulfonyl isocyanate according to claim 8, characterized in that: One end of the shaft rod passes through the placement box and is rotatably connected to the inner wall of the placement box, the external fixed sleeve of the shaft rod is provided with a large gear located in the placement box, a short shaft is rotatably arranged between the inner walls of the placement box, the external fixed sleeve of the short shaft is provided with a small gear, the small gear is meshed with the large gear, the end of the short shaft away from the containing box passes through the outer wall of the placement box and is rotatably connected to the inner wall of the hollow ring, and the external fixed sleeve of the short shaft is provided with an impeller located in the hollow ring.

10. Intelligent treatment method for waste gas from the production of p-toluenesulfonyl isocyanate, characterized by: Using the intelligent waste gas treatment device produced by p-toluenesulfonyl isocyanate as described in any one of claims 1 to 9, the method comprises the following steps: Step 1: The waste gas produced by the production of p-toluenesulfonyl isocyanate is passed into a spray tower, and the spray liquid sprayed from the top of the tower contacts the waste gas to remove soluble pollutants in the waste gas, and at the same time remove particulate matter in the waste gas, thereby completing the preliminary purification of the waste gas; Step 2: The gas then enters the activated carbon purification cartridge through the air guide pipe. The activated carbon purification cartridge adsorbs the organic pollutants in the gas to complete the deep purification of the exhaust gas. The purified gas is discharged to the outside through the exhaust pipe. Step 3. During the deep purification of the exhaust gas by the activated carbon purification cartridge mechanism, the hot air mechanism cooperates with the hot air mechanism to deliver high-temperature hot air into the activated carbon purification cartridge mechanism, and uses the high-temperature hot air to heat the activated carbon particles, so that the adsorbent in the micropores of the activated carbon particles automatically separates from the activated carbon when encountering high temperature, completing the regeneration of the activated carbon particles and restoring the adsorption capacity of the activated carbon for the next adsorption process.

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