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

Abstract

The application discloses a waste gas intelligent treatment device and method for p-toluenesulfonyl isocyanate production, which comprises a spray tower placed on the ground and relates to the technical field of waste gas treatment. The waste gas intelligent treatment device and method for p-toluenesulfonyl isocyanate production can remove soluble pollutants in waste gas produced in p-toluenesulfonyl isocyanate production and particulate matters in the waste gas by the cooperation among the spray tower, the activated carbon purification cylinder mechanism, the exhaust pipe and the hot air mechanism, so that the preliminary purification of the waste gas is realized. After that, the waste gas enters the activated carbon purification cylinder mechanism, the organic pollutants in the waste gas are adsorbed by the activated carbon, the deep purification of the waste gas is realized, and the hot air mechanism is cooperated, so that the organic matters on the surface of activated carbon particles can be timely and effectively removed by using the high-temperature regeneration principle, the regeneration of the activated carbon is realized, and the efficient cooperation between the waste gas treatment and the activated carbon regeneration is ensured.

Description

Technical Field

[0001] This invention relates to the field of waste gas treatment technology, specifically to an intelligent waste gas treatment device and method for the production of p-toluenesulfonyl isocyanate. Background Technology

[0002] In the chemical industry, p-toluenesulfonyl isocyanate (TOSCI) is a key fine chemical raw material used in paint manufacturing, polyurethane synthesis, and the preparation of pharmaceutical and pesticide intermediates. However, the production process of TOSCI generates waste gas containing harmful substances, and direct emission of these gases can seriously endanger the environment and human health. To address this issue, intelligent waste gas treatment devices have been developed to reduce the emission of harmful substances and protect the ecological environment. When treating these waste gases, activated carbon, due to its porous structure, has a strong adsorption capacity and can effectively purify organic molecules and pollutants in the waste gas. This technology is widely used in advanced environmental protection industries.

[0003] Referring to the VOC waste gas treatment device disclosed in patent application CN219252138U, the existing VOC waste gas treatment device is optimized and improved by designing a duct mechanism in each activated carbon drawer. This allows the VOC waste gas entering the purification chamber to be guided into the center of the activated carbon drawer through vertical and horizontal ducts. This ensures that the activated carbon particles buried in the center of the activated carbon drawer can also fully contact the waste gas, thereby maximizing the utilization efficiency of the activated carbon particles and improving the overall waste gas treatment efficiency of the device.

[0004] A comprehensive analysis of the above-mentioned patents reveals the following drawbacks:

[0005] Existing intelligent waste gas treatment devices and methods for p-toluenesulfonyl isocyanate production typically utilize activated carbon particles to adsorb organic pollutants in the waste gas, thereby purifying the waste gas. High-temperature hot air is then used to regenerate the activated carbon. However, the activated carbon particles within the device are relatively fixed in position, resulting in insufficient contact with the waste gas during purification, thus limiting purification efficiency. Furthermore, the contact effect with the high-temperature hot air during activated carbon regeneration is also affected, leading to some activated carbon particles potentially failing to be effectively regenerated. It is also difficult to promptly and automatically agitate the activated carbon particles to ensure thorough contact between all particles and the waste gas or high-temperature hot air. Therefore, it is necessary to provide an intelligent waste gas treatment device and method for p-toluenesulfonyl isocyanate production to solve the aforementioned technical problems. Summary of the Invention

[0006] To address the shortcomings of existing technologies, this invention provides an intelligent waste gas treatment device and method for the production of p-toluenesulfonyl isocyanate. This invention solves the problems of the relatively fixed position of activated carbon particles in the device, which not only results in insufficient contact with the waste gas during the purification process, thus limiting the purification efficiency, but also affects the contact effect with high-temperature hot air during the activated carbon regeneration process. Consequently, some activated carbon particles may not be effectively regenerated, and it is difficult to timely and automatically turn the activated carbon particles so that the activated carbon particles in all positions can have in-depth contact with the waste gas or high-temperature hot air.

[0007] To achieve the above objectives, the present invention provides the following technical solution: an intelligent waste gas treatment device for the production of p-toluenesulfonyl isocyanate, comprising:

[0008] The spray tower, placed on the ground, is used to remove soluble pollutants from the waste gas produced by p-toluenesulfonyl isocyanate, while also removing particulate matter from the waste gas.

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

[0010] The exhaust pipe is fixedly connected to the top of the activated carbon purification cylinder mechanism and is used to discharge the purified gas.

[0011] The hot air mechanism is fixedly installed at the lower rear end of the activated carbon purification cylinder mechanism and is used to deliver 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 cartridge mechanism includes:

[0013] The system consists of a drive shaft assembly, three activated carbon holding assemblies, and a servo motor. The servo motor drives the drive shaft assembly to rotate intermittently by 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 used to regenerate the activated carbon.

[0014] Preferably, the activated carbon purification cylinder mechanism further includes an outer cylinder. A receiving plate is fixedly disposed between the inner wall of the outer cylinder and the middle of the inner cavity. An air outlet is opened on the top right side of the receiving plate. An air inlet is fixedly disposed on the bottom right side of the receiving plate. An electromagnetic valve is fixedly disposed on the upper part of the air inlet. The drive shaft assembly is rotatably disposed between the upper and lower walls of the inner cavity of the receiving plate. Three activated carbon holding components are evenly fixedly disposed around the side wall of the drive shaft assembly. The upper and lower walls of each activated carbon holding component are in contact with the upper and lower walls of the inner cavity of the receiving plate. A hot air inlet pipe is fixedly connected to the bottom rear end of the receiving plate. The rear end of the hot air inlet pipe is fixedly connected through the rear wall of the outer cylinder and is fixedly connected to the air supply end of the hot air mechanism. An exhaust pipe is fixedly connected to the top rear end of the receiving plate. The rear end of the exhaust pipe is fixedly... A bend is fixedly connected to the right side of the exhaust pipe, which is located outside the outer cylinder, and to the left side of the exhaust pipe, which is also located outside the outer cylinder. Two air inlets and two air outlets are opened at the bottom of the receiving tray. The bottom of the bend is fixedly connected to the bottom of the receiving tray and communicates with the two air inlets. Two outlet pipes are fixedly installed at the bottom of the receiving tray, with the front ends of each outlet pipe communicating with the two air outlets. The rear ends of both outlet pipes are fixedly connected to the rear wall of the outer cylinder. A servo motor is fixedly installed at the top center of the receiving tray. The output shaft of the servo motor passes through the top of the receiving tray and is fixedly connected to the top of the drive shaft assembly. A cover fitted over the servo motor is fixedly installed on the top of the receiving tray.

[0015] Preferably, the drive shaft assembly includes a rotating shaft, which is rotatably connected between the upper and lower walls of the inner cavity of the receiving plate. A base is fixedly sleeved on the lower outer wall of the rotating shaft. The bottom of the base is in contact with the bottom of the inner cavity of the receiving plate. Three air inlets are evenly distributed around the inside of the base, and three air outlets are evenly distributed around the outside of the base.

[0016] Preferably, each activated carbon holding component includes an upper purification component, and a lower purification component is disposed below the upper purification component. The upper and lower purification components have identical structures. The bottom middle of the upper purification component and the top middle of the lower purification component are fixedly connected by a rod. The rod is fixedly connected to the side wall of the rotating shaft by a bracket. The upper and lower purification components are fixedly connected by an inclined tube. Two connecting pipes are fixedly disposed between the upper and lower purification components. The middle part of one connecting pipe is fixedly connected to the top of the chassis by an air inlet hose and is connected to an adjacent air inlet hole two. 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 an adjacent air outlet hole two.

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

[0018] Preferably, a partition is fixedly provided between the outer wall of the square frame and the inner wall of the holding tray. The partition is located in one of the flow guiding spaces, and two flow blocking plates are fixedly provided inside the other three flow guiding spaces. An air inlet is provided at the bottom of the holding tray, located on one side of the partition. An air outlet is provided at the top of the holding tray, located on the other side of the partition.

[0019] Preferably, a hollow ring is fixedly sleeved on the outside of the holding tray, and a partition plate two 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 connected to the air inlet and the air outlet in the lower purification component. The two connecting tubes are located on both sides of the partition plate two and are connected to the inside of the hollow ring.

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

[0021] Preferably, one end of the shaft passes through the placement box and is rotatably connected to the inner wall of the placement box. A large gear located inside the placement box is fixedly sleeved on the outside of the shaft. A short shaft is rotatably arranged between the inner walls of the placement box. A small gear is fixedly sleeved on the outside of the short shaft. The small gear meshes with the large gear. The end of the short shaft away from the receiving box passes through the outer wall of the placement box and is rotatably connected to the inner wall of the hollow ring. An impeller located inside the hollow ring is fixedly sleeved on the outside of the short shaft.

[0022] This invention also provides a smart treatment method for waste gas from the production of p-toluenesulfonyl isocyanate, which employs a smart treatment device for waste gas from the production of p-toluenesulfonyl isocyanate. The specific method includes the following steps:

[0023] Step 1: The waste gas from the production of p-toluenesulfonyl isocyanate is introduced into the spray tower. The spray liquid sprayed down from the top of the tower comes into contact with the waste gas, removing soluble pollutants and particulate matter, thus completing the initial purification of the waste gas.

[0024] Step 2: The gas then enters the activated carbon purification cylinder through the gas guide pipe. The activated carbon purification cylinder adsorbs the organic pollutants in the gas, completing the deep purification of the waste gas. The purified gas is discharged to the outside through the exhaust pipe.

[0025] Step 3: During the deep purification of waste gas by the activated carbon purification cylinder mechanism, in conjunction with the hot air mechanism, the hot air mechanism delivers high-temperature hot air into the activated carbon purification cylinder mechanism. The high-temperature hot air heats the activated carbon particles, causing the adsorbate in the micropores of the activated carbon particles to automatically detach from the activated carbon upon encountering the high temperature, thus completing the regeneration of the activated carbon particles and restoring their adsorption capacity for use in the next adsorption process.

[0026] Beneficial effects

[0027] This invention provides an intelligent device and method for treating waste gas from the production of p-toluenesulfonyl isocyanate. Compared with the prior art, it has the following advantages:

[0028] 1. An intelligent treatment device and method for waste gas from p-toluenesulfonyl isocyanate production, which utilizes the coordinated operation of a spray tower, an activated carbon purification cylinder, an exhaust pipe, and a hot air mechanism. The spray tower removes soluble pollutants and particulate matter from the waste gas, achieving preliminary purification. The waste gas then enters the activated carbon purification cylinder, where activated carbon adsorbs organic pollutants, achieving deep purification. In conjunction with the hot air mechanism, the high-temperature regeneration principle effectively and promptly removes organic matter from the surface of activated carbon particles, regenerating the activated carbon and ensuring efficient synergy between waste gas treatment and activated carbon regeneration.

[0029] 2. An intelligent waste gas treatment device and method for p-toluenesulfonyl isocyanate production, through the cooperation of an outlet, an inlet hopper, a drive shaft assembly, an activated carbon holding assembly, a hot air inlet pipe, a bend pipe, and a servo motor, utilizes the servo motor to drive the drive shaft assembly to rotate intermittently at a set angle, causing the three activated carbon holding assemblies to revolve accordingly. When one of the activated carbon holding assemblies is rotated to the far right, its interior is connected to the outlet and the inlet hopper, and it is switched to the state of purifying the waste gas in the outer cylinder. At the same time, another activated carbon holding assembly is rotated to the rear, connecting its interior to the hot air inlet pipe and the exhaust pipe, and it is switched to the activated carbon regeneration state. This allows for flexible switching between purification and regeneration states without stopping the machine, ensuring the continuity and efficiency of waste gas treatment, and enabling the long-term recycling of activated carbon.

[0030] 3. An intelligent treatment device and method for waste gas from the production of p-toluenesulfonyl isocyanate: Through the cooperation of a holding tray, multiple activated carbon adsorption components, a partition plate, a lower purification component, and an inclined tube, the waste gas entering the outer cylinder first enters the lower purification component through the air inlet hopper, and then enters the upper purification component through the inclined tube. Since the upper purification component is equipped with multiple activated carbon adsorption components, and the lower purification component has the same structure as the upper purification component, the cooperation of the layers of activated carbon adsorption components ensures that the waste gas can fully contact the activated carbon during the flow, thoroughly adsorbing the organic pollutants in the waste gas, completing the deep purification of the waste gas, which not only optimizes the airflow path, but also improves the space utilization rate.

[0031] 4. An intelligent waste gas treatment device and method for p-toluenesulfonyl isocyanate production, through the cooperation of shafts, arc-shaped blades, large gears, small gears, and impellers, when one activated carbon holding component completes the purification of waste gas, while high-temperature hot air is supplied to another activated carbon holding component for activated carbon regeneration, a portion of the hot air is cleverly guided through a bend and an air inlet to the rightmost and rearmost activated carbon holding components. Passing through the hollow ring, the impeller is blown, causing several arc-shaped blades to rotate. This not only fully utilizes the hot air but also reduces energy loss. The rotating arc-shaped blades promptly agitate the activated carbon particles in the holding box, ensuring that the activated carbon particles in the rightmost activated carbon holding component fully contact the passing waste gas, and that the activated carbon particles in the rear activated carbon holding component fully contact the passing high-temperature hot air. This intelligent agitation operation ensures comprehensive and deep contact between the activated carbon particles and both the waste gas during purification and the high-temperature hot air during regeneration, improving the overall utilization rate and regeneration efficiency of the activated carbon.

[0032] 5. Intelligent treatment device and method for waste gas from p-toluenesulfonyl isocyanate production: Due to the spiral distribution of several arc-shaped blades on the outside of the shaft, the unique geometry makes the turning action more continuous and uniform. Compared with arc-shaped blades distributed in a straight line or radial direction, it can more effectively turn the activated carbon particles, prevent the particles from clumping, ensure that each activated carbon particle can be fully utilized, and improve the overall utilization rate of activated carbon. The setting of the baffle plate can extend the contact time between the activated carbon particles in each container and the waste gas or high-temperature hot air. More contact time means that the activated carbon can more effectively adsorb pollutants in the waste gas or release adsorbed pollutants during the regeneration process, thereby improving the efficiency of purification or regeneration.

[0033] Other advantages, objectives, and features of the invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination, or may be learned from practice of the invention. The objectives and other advantages of the invention can be realized and obtained through the following description. Attached Figure Description

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

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

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

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

[0038] Figure 5 This is a cross-sectional perspective view of the receiving plate of the present invention;

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

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

[0041] Figure 8 This is a first assembly drawing of the drive shaft assembly and activated carbon holding assembly of the present invention;

[0042] Figure 9 This is a second assembly diagram of the drive shaft assembly and activated carbon holding assembly of the present invention;

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

[0044] Figure 11 This is a perspective view of the activated carbon holding component of the present invention;

[0045] Figure 12 This is an exploded view of the activated carbon holding component of the present invention;

[0046] Figure 13 This is a cross-sectional perspective view of the purification component of the present invention;

[0047] Figure 14 This is a cross-sectional perspective view of the activated carbon adsorption component of the present invention.

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

[0049] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0050] This invention provides two technical solutions:

[0051] like Figure 1 and Figure 6 A first embodiment is shown: a smart treatment device for waste gas from the production of p-toluenesulfonyl isocyanate, comprising:

[0052] Spray tower 1, placed on the ground, is used to remove soluble pollutants from the waste gas produced by p-toluenesulfonyl isocyanate, and at the same time remove particulate matter from the waste gas.

[0053] The activated carbon purification cylinder mechanism 3 is placed on the ground by multiple legs. It uses activated carbon to adsorb organic pollutants in the waste gas produced by p-toluenesulfonyl isocyanate and automatically removes organic matter from the surface of the activated carbon by using the high temperature regeneration principle to complete the regeneration of the activated carbon. The bottom left side of the activated carbon purification cylinder mechanism 3 is fixedly connected to the top of the spray tower 1 through the air guide pipe 2.

[0054] The exhaust pipe 4 is fixedly connected to the top of the activated carbon purification cylinder mechanism 3 and is used to discharge the purified gas.

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

[0056] Activated carbon purification cylinder mechanism 3 includes:

[0057] The system includes a drive shaft assembly 36, three activated carbon holding assemblies 37, and a servo motor 313. The servo motor 313 drives the drive shaft assembly 36 to rotate intermittently by a set angle to switch the position between two adjacent activated carbon holding assemblies 37. One activated carbon holding assembly 37 is used to purify the exhaust gas, while the other activated carbon holding assembly 37 is used to regenerate the activated carbon.

[0058] Through the coordinated operation of the spray tower 1, activated carbon purification cylinder 3, exhaust pipe 4, and hot air mechanism 5, the spray tower 1 removes soluble pollutants from the waste gas produced by p-toluenesulfonyl isocyanate production, while also removing particulate matter, thus achieving preliminary purification of the waste gas. The waste gas then enters the activated carbon purification cylinder 3, where activated carbon adsorbs organic pollutants, achieving deep purification. In conjunction with the hot air mechanism 5, the high-temperature regeneration principle effectively and promptly removes organic matter from the surface of the activated carbon particles, regenerating the activated carbon and ensuring efficient synergy between waste gas treatment and activated carbon regeneration.

[0059] like Figures 2 to 5 and Figures 7 to 14The second embodiment is shown. The main difference from the first embodiment is that the intelligent waste gas treatment device for p-toluenesulfonyl isocyanate production includes an outer cylinder 31. A receiving plate 32 is fixedly arranged between the inner wall of the outer cylinder 31. An air outlet 33 is opened on the top right side of the receiving plate 32, and an air inlet hopper 34 is fixedly arranged on the bottom right side of the receiving plate 32. A solenoid valve 35 is fixedly arranged on the upper part of the air inlet hopper 34. A drive shaft assembly 36 is rotatably arranged between the upper and lower walls of the inner cavity of the receiving plate 32. Three activated carbon holding components 37 are evenly fixedly arranged around the side wall of the drive shaft assembly 36. The upper and lower walls of each activated carbon holding component 37 are in contact with the upper and lower walls of the inner cavity of the receiving plate 32. A hot air inlet pipe 38 is fixedly connected to the bottom rear end of the receiving plate 32. The rear end of the hot air inlet pipe 38 is fixedly connected through the rear wall of the outer cylinder 31 and is fixedly connected to the air supply end of the hot air mechanism 5. An exhaust pipe 39 is fixedly connected to the top rear end of the receiving plate 32. The rear end of the exhaust pipe 39 is fixedly connected through the rear wall of the outer cylinder 31. A bend pipe 310 is fixedly connected to the right side of the exhaust pipe 39 and outside the outer cylinder 31. A branch pipe 311 is fixedly connected to the left side of the exhaust pipe 39 and outside the outer cylinder 31. Two air inlets 315 and two air outlets 316 are opened at the bottom of the receiving plate 32. The bottom of the bend pipe 310 is fixedly connected to the bottom of the receiving plate 32 and is connected to the two air inlets 315. The bottom of the receiving plate 32 is fixedly connected to the bottom of the receiving plate 32. Two outlet pipes 312 are fixedly provided, with the front ends of the two outlet pipes 312 respectively connected to two air outlets 316. The rear ends of the two outlet pipes 312 are fixedly inserted through the rear wall of the outer cylinder 31. A servo motor 313 is fixedly disposed at the top center of the receiving plate 32. The output shaft of the servo motor 313 passes through the top of the receiving plate 32 and is fixedly connected to the top of the drive shaft assembly 36. A cover 314 is fixedly disposed on the top of the receiving plate 32 and sleeved outside the servo motor 313. The drive shaft assembly 36 includes a rotating shaft 361, which is rotatably connected between the upper and lower walls of the inner cavity of the receiving plate 32. A base plate 362 is fixedly sleeved on the lower outer wall of the rotating shaft 361. The bottom of the base plate 362 is in contact with the bottom of the inner cavity of the receiving plate 32. The base 362 has three evenly spaced air inlets 363 inside and three evenly spaced air outlets 364 on the outer side. Each activated carbon holding component 37 includes an upper purification component 371 and a lower purification component 372 below it. The upper and lower purification components 371 and 372 have identical structures. The bottom center of the upper purification component 371 and the top center of the lower purification component 372 are fixedly connected by a rod. The rod is fixedly connected to the side wall of the rotating shaft 361 by a bracket 373. The upper and lower purification components 371 and 372 are fixedly connected by an inclined tube 374. Two connecting pipes 375 are fixedly installed between the upper and lower purification components 371 and 372.One connecting pipe 375 is fixedly connected to the top of the chassis 362 via an air inlet hose 377 and communicates with the adjacent air inlet 363. The other connecting pipe 375 is fixedly connected to the top of the chassis 362 via an air outlet hose 376 and communicates with the adjacent air outlet 364. The upper purification component 371 includes a holding tray 3711. A square frame 3712 is fixedly installed between the upper and lower walls of the inner cavity of the holding tray 3711. Four activated carbon adsorption components 3713 are evenly fixedly installed around the outer wall of the square frame 3712 and between the inner wall of the holding tray 3711. The four activated carbon adsorption components 3713 divide the internal space of the holding tray 3711 into four relatively independent guides. In the flow space, a partition 3714 is fixedly installed between the outer wall of the square frame 3712 and the inner wall of the container 3711. The partition 3714 is located in one of the flow guiding spaces. Two flow-blocking plates 3715 are fixedly installed inside the other three flow guiding spaces. An air inlet 3716 is opened at the bottom of the container 3711, located on one side of the partition 3714. An air outlet 3717 is opened at the top of the container 3711, located on the other side of the partition 3714. A hollow ring 3718 is fixedly fitted on the outside of the container 3711. A partition 3719 is fixedly installed between the inner wall of the hollow ring 3718 and the outer wall of the container 3711. An inclined tube 37... The interior of component 4 is connected to the air inlet 3716 and the air outlet 3717 in the lower purification component 372. Two connecting pipes 375 are located on both sides of the partition plate 3719 and are connected to the interior of the hollow ring 3718. Each activated carbon adsorption component 3713 includes a receiving box a1, in which activated carbon particles are filled. The receiving box a1 is fixedly connected between the inner wall of the holding tray 3711 and the outer wall of the square frame 3712. Several through holes a2 are opened on both sides of the receiving box a1. A placement box a3 is provided on one side of the receiving box a1, located in the hollow ring 3718. The placement box a3 is fixedly connected to the outer wall of the holding tray 3711. The inner cavity of the receiving box a1 is rotatably connected between the two sides. The device has a shaft a4, on the outer wall of which several arc-shaped blades a5 are evenly fixed and spirally distributed. One end of the shaft a4 passes through a placement box a3 and is rotatably connected to the inner wall of the placement box a3. A large gear a6 is fixedly fitted on the outside of the shaft a4 and located inside the placement box a3. A short shaft a7 is rotatably mounted between the inner walls of the placement box a3. A small gear a8 is fixedly fitted on the outside of the short shaft a7 and meshes with the large gear a6. The end of the short shaft a7 away from the receiving box a1 passes through the outer wall of the placement box a3 and is rotatably connected to the inner wall of a hollow ring 3718. An impeller a9 is fixedly fitted on the outside of the short shaft a7 and located inside the hollow ring 3718.

[0060] Through the coordinated operation of the air outlet 33, air inlet hopper 34, drive shaft assembly 36, activated carbon holding assembly 37, hot air inlet pipe 38, bend pipe 310, and servo motor 313, the servo motor 313 drives the drive shaft assembly 36 to rotate intermittently at a set angle. The three activated carbon holding assemblies 37 then revolve, rotating one of them to the far right. This activated carbon holding assembly 37 is then connected to the air outlet 33 and air inlet hopper 34, and is switched to purifying the waste gas inside the outer cylinder 31. Simultaneously, another activated carbon holding assembly 37 rotates to the rear, connecting its interior to the hot air inlet pipe 38 and exhaust pipe 39. At this point, the activated carbon holding component 37 is switched to the activated carbon regeneration state, flexibly switching between purification and regeneration states without stopping the machine, ensuring the continuity and efficiency of waste gas treatment, and realizing the long-term recycling of activated carbon. Through the cooperation between the holding tray 3711, multiple activated carbon adsorption components 3713, partition 3714, lower purification component 372, and inclined tube 374, the waste gas entering the outer cylinder 31 first enters the lower purification component 372 through the air inlet hopper 34, and then enters the upper purification component 371 through the inclined tube 374. Since the upper purification component 371 is equipped with multiple activated carbon adsorption components 3713, and the lower purification component 372 has the same structure as the upper purification component 371, the waste gas passes through layers of activated carbon... The adsorption component 3713 ensures that the exhaust gas can fully contact the activated carbon during its flow, thoroughly adsorbing the organic pollutants in the exhaust gas and achieving deep purification. This not only optimizes the airflow path but also improves space utilization. Through the cooperation of shaft a4, arc-shaped blade a5, large gear a6, small gear a8, and impeller a9, when one activated carbon holding component 37 completes the purification of the exhaust gas, while high-temperature hot air is supplied to another activated carbon holding component 37 for activated carbon regeneration, a portion of the hot air is cleverly guided through the bend 310 and air inlet 315 to the rightmost and rearmost activated carbon holding components 37. Passing through the hollow ring 3718, the air blows the impeller a9, thus carrying away the pollutants. The rotation of several arc-shaped blades a5 not only maximizes the utilization of hot air but also reduces energy loss. The rotating blades a5 promptly agitate the activated carbon particles in the container a1, ensuring that the activated carbon particles in the rightmost activated carbon holding component 37 fully contact the passing exhaust gas and that the activated carbon particles in the rear activated carbon holding component 37 fully contact the passing high-temperature hot air. This intelligent agitation operation ensures comprehensive and deep contact between the activated carbon particles and both the exhaust gas during purification and the high-temperature hot air during regeneration, improving the overall utilization rate and regeneration efficiency of the activated carbon. Because the several arc-shaped blades a5 are spirally distributed outside the shaft a4, their unique geometry makes the agitation action more continuous and uniform.Compared to linear or radially distributed arc-shaped blades (a5), this design more effectively agitates activated carbon particles, preventing clumping and ensuring that each particle is fully utilized, thus improving overall activated carbon utilization. The baffle plate (3715) extends the contact time between the activated carbon particles in each container (a1) and the exhaust gas or high-temperature hot air. More contact time means the activated carbon can more effectively adsorb pollutants in the exhaust gas or release adsorbed pollutants during regeneration, improving purification or regeneration efficiency.

[0061] This invention also provides an intelligent treatment method for waste gas from the production of p-toluenesulfonyl isocyanate, which employs an intelligent waste gas treatment device for p-toluenesulfonyl isocyanate production. The specific method includes the following steps:

[0062] Step 1: The waste gas from the production of p-toluenesulfonyl isocyanate is introduced into spray tower 1. Spray tower 1 is a prior art known to those skilled in the art. Its core working principle is to use the spray liquid that is uniformly sprayed down from the top of the tower to fully interact with the rising waste gas through physical and chemical processes. Specifically, the spray liquid that is sprayed down from the top of the tower comes into contact with the waste gas to remove soluble pollutants in the waste gas, and at the same time remove particulate matter in the waste gas, thus completing the preliminary purification of the waste gas.

[0063] Step 2: The gas then enters the outer cylinder 31 through the air guide pipe 2. The servo motor 313 is activated, driving the drive shaft assembly 36 to rotate intermittently at a set angle. The three activated carbon holding assemblies 37 revolve accordingly. One of the activated carbon holding assemblies 37 is rotated to the far right, where its interior is connected to the air outlet 33 and the air inlet hopper 34. The air inlet 3716 in the lower purification assembly 372 completely overlaps with the top of the air inlet hopper 34, and the air outlet 371... 7 is completely aligned with the air outlet 33. Whenever the activated carbon holding component 37 rotates, the solenoid valve 35 closes. When the activated carbon holding component 37 stops rotating, the solenoid valve 35 opens. At this time, the activated carbon holding 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 holding tray 3711 in the lower purification component 372 through the air inlet hopper 34 and the air inlet 3716 in the lower purification component 372, and then enters through the inclined pipe 374. In the upper purification component 371, during the process of the waste gas flowing through the holding tray 3711, it passes through each activated carbon adsorption component 3713 in sequence and comes into full contact with the activated carbon particles in the container box a1. The activated carbon particles adsorb the organic pollutants in the waste gas, and finally complete the deep purification of the waste gas. The purified gas is discharged through the outlet 33 and finally discharged outward through the exhaust pipe 4. While one activated carbon holding component 37 is rotated to the far right, another activated carbon holding component 37 is rotated to the rear. The activated carbon holding 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, the air inlet 3716 in the lower purification component 372 inside the activated carbon holding component 37 completely overlaps with the top of the hot air inlet pipe 38, and the air outlet 3717 completely overlaps with the bottom of the exhaust pipe 39. At this time, the activated carbon holding component 37 is switched to the activated carbon regeneration state.

[0064] Step 3: After the activated carbon holding component 37 is positioned correctly, the hot air mechanism 5 operates, delivering high-temperature hot air into the activated carbon holding component 37 through the hot air inlet pipe 38. The high-temperature hot air enters the holding tray 3711 in the lower purification component 372, and then enters the holding tray 3711 in the upper purification component 371. During the flow of the high-temperature hot air through the holding tray 3711, it passes through each activated carbon adsorption component 3713 in sequence, making full contact with the activated carbon particles in the container a1, heating the activated carbon particles. Under the action of the high-temperature air, the activated carbon particles... Organic matter adhering to the surface of activated carbon is decomposed and detached, allowing the activated carbon to regenerate. Hot air is then exhausted through exhaust pipe 39, with some exiting directly to the outside via branch pipe 311 and some entering bend pipe 310. It then enters the rightmost and rear activated carbon holding components 37 through two air inlets 315 and two air inlets 363 that overlap with the first air inlets 315. During this process, hot air passes through air inlet hose 377 and corresponding connecting pipe 375 into the hollow rings of the upper and lower purification components 371 and 372. Inside 3718, the airflow through the hollow ring 3718 causes the impeller a9 to rotate. Under the meshing of the small gear a8 and the large gear a6, the shaft a4 and the arc-shaped blade a5 rotate slowly. The rotating arc-shaped blade a5 promptly agitates the activated carbon particles in the receiving box a1, ensuring that the activated carbon particles in the rightmost activated carbon holding component 37 can fully contact the passing exhaust gas, and that the activated carbon particles in the rear activated carbon holding component 37 can fully contact the passing high-temperature hot air. This ensures that both the exhaust gas during the purification process and the high-temperature hot air during the regeneration process are effectively treated. After achieving full and deep contact with the activated carbon particles, the hot air passes through the corresponding connecting pipe 375, the air outlet hose 376, the second air outlet 364, and the first air outlet 316, and is finally discharged to the outside through the outlet pipe 312. The hot air mechanism 5 is a prior art known to those skilled in the art. The hot air mechanism 5 consists of an outer casing and a hot air mechanism fixedly installed in the outer casing. After the drive shaft assembly 36 rotates to a set angle, the two first air inlets 315 coincide with the two corresponding second air inlets 363, and the two first air outlets 316 coincide with the two corresponding second air outlets 364.

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

[0066] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which 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: The spray tower, placed on the ground, is used to remove soluble pollutants from the waste gas produced by p-toluenesulfonyl isocyanate, while also removing particulate matter from the waste gas. The activated carbon purification cylinder mechanism is placed on the ground by multiple legs. It uses activated carbon to adsorb organic pollutants in the waste gas produced by p-toluenesulfonyl isocyanate and automatically removes organic matter from the surface of the activated carbon using the high-temperature regeneration principle to complete the regeneration of the activated carbon. The bottom left side of the activated carbon purification cylinder mechanism is fixedly connected to the top of the spray tower through a gas 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 installed at the lower rear end of the activated carbon purification cylinder mechanism and is used to deliver high-temperature hot air into the activated carbon purification cylinder mechanism to decompose the organic matter on the surface of the activated carbon. The activated carbon purification cartridge mechanism includes: The system consists of a drive shaft assembly, three activated carbon holding assemblies, and a servo motor. The servo motor drives the drive shaft assembly to rotate intermittently by 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 used to regenerate the activated carbon. The activated carbon purification cylinder mechanism also includes an outer cylinder. A receiving plate is fixedly arranged between the inner wall of the outer cylinder. An air outlet is opened on the top right side of the receiving plate. An air inlet is fixedly arranged on the bottom right side of the receiving plate. A solenoid valve is fixedly arranged on the upper part of the air inlet. The drive shaft assembly is rotatably arranged between the upper and lower walls of the inner cavity of the receiving plate. Three activated carbon holding components are evenly fixedly arranged around the side wall of the drive shaft assembly. The upper and lower walls of each activated carbon holding component are in contact with the upper and lower walls of the inner cavity of the receiving plate. A hot air inlet pipe is fixedly connected to the bottom rear end of the receiving plate. The rear end of the hot air inlet pipe is fixedly connected through the rear wall of the outer cylinder and is fixedly connected to the air supply end of the hot air mechanism. An exhaust pipe is fixedly connected to the top rear end of the receiving plate. The rear end of the exhaust pipe is fixedly connected through... The rear wall of the outer cylinder has a bend pipe fixedly connected to the right side of the exhaust pipe outside the outer cylinder, and a branch pipe fixedly connected to the left side of the exhaust pipe outside the outer cylinder. The bottom of the receiving plate has two air inlets and two air outlets. The bottom of the bend pipe is fixedly connected to the bottom of the receiving plate and communicates with the two air inlets. The bottom of the receiving plate has two outlet pipes fixedly installed. The front ends of the two outlet pipes are respectively connected to the two air outlets. The rear ends of the two outlet pipes are fixedly penetrated through the rear wall of the outer cylinder. The servo motor is fixedly installed in the middle of the top of the receiving plate. The output shaft of the servo motor passes through the top of the receiving plate and is fixedly connected to the top of the drive shaft assembly. The top of the receiving plate is fixedly fitted with a cover that covers the outside of the servo motor. The drive shaft assembly includes a rotating shaft, which is rotatably connected between the upper and lower walls of the inner cavity of the receiving plate. A base is fixedly sleeved on the lower outer wall of the rotating shaft. The bottom of the base is in contact with the bottom of the inner cavity of the receiving plate. Three air inlets are evenly distributed around the inside of the base, and three air outlets are evenly distributed around the outside of the base. Each activated carbon holding assembly includes an upper purification assembly, and a lower purification assembly is disposed below the upper purification assembly. The upper and lower purification assemblies have identical structures. The bottom middle of the upper purification assembly and the top middle of the lower purification assembly are fixedly connected by a rod. The rod is fixedly connected to the side wall of the rotating shaft by a bracket. The upper and lower purification assemblies are fixedly connected by an inclined tube. Two connecting pipes are fixedly installed between the upper and lower purification assemblies. The middle part of one connecting pipe is fixedly connected to the top of the chassis by an air inlet hose and is connected to an adjacent air inlet hole two. 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 an adjacent air outlet hole two. The upper purification component includes a holding tray. A square frame is fixedly installed between the upper and lower walls of the inner cavity of the holding tray. Four activated carbon adsorption components are evenly fixedly installed between the outer wall of the square frame and the inner wall of the holding tray. The four activated carbon adsorption components divide the internal space of the holding tray into four relatively independent flow guiding spaces. A partition is fixedly installed between the outer wall of the square frame and the inner wall of the holding tray. The partition is located in one of the flow guiding spaces. Two flow-blocking plates are fixedly installed inside the other three flow guiding spaces. An air inlet is opened at the bottom of the holding tray and is located on one side of the partition. An air outlet is opened at the top of the holding tray and is located on the other side of the partition. A hollow ring is fixedly fitted on the outside of the holding tray. A partition is fixedly installed between the inner wall of the hollow ring and the outer wall of the holding tray. The inside of the inclined tube is connected to the air inlet and the air outlet in the lower purification component. Two connecting tubes are located on both sides of the partition and are connected to the inside of the hollow ring. Each activated carbon adsorption assembly includes a receiving box, which is fixedly connected between the inner wall of the holding tray and the outer wall of the square frame. Several through holes are provided on both side walls of the receiving box. A placement box located within a hollow ring is provided on one side of the receiving box, and the placement box is fixedly connected to the outer wall of the holding tray. A shaft is rotatably arranged between the two side walls of the inner cavity of the receiving box. Several arc-shaped blades are evenly fixedly arranged on the outer wall of the shaft, and these arc-shaped blades are spirally distributed outside the shaft. One end of the shaft passes through the placement box and is rotatably connected to the inner wall of the placement box. A large gear located inside the placement box is fixedly sleeved on the outside of the shaft. A short shaft is rotatably arranged between the inner walls of the placement box. A small gear is fixedly sleeved on the outside of the short shaft, and the small gear meshes with the large gear. The end of the short shaft away from the receiving box passes through the outer wall of the placement box and is rotatably connected to the inner wall of the hollow ring. An impeller located inside the hollow ring is fixedly sleeved on the outside of the short shaft. Part of the hot air used for regeneration is discharged directly to the outside through the branch pipe, and part enters the bend pipe. Then, it enters the rightmost activated carbon holding component and the rear activated carbon holding component through two air inlets. During the process, the hot air enters the hollow ring in the upper and lower purification components through the air inlet hose and the corresponding connecting pipe, blowing the impeller to rotate. The impeller drives the arc blades to turn the activated carbon through the gear mechanism.

2. A smart treatment method for waste gas from the production of p-toluenesulfonyl isocyanate, characterized in that: The intelligent waste gas treatment device for the production of p-toluenesulfonyl isocyanate as described in claim 1 includes the following steps: Step 1: The waste gas from the production of p-toluenesulfonyl isocyanate is introduced into the spray tower. The spray liquid sprayed down from the top of the tower comes into contact with the waste gas, removing soluble pollutants and particulate matter, thus completing the initial purification of the waste gas. Step 2: The gas then enters the activated carbon purification cylinder through the gas guide pipe. The activated carbon purification cylinder adsorbs the organic pollutants in the gas, completing the deep purification of the waste gas. The purified gas is discharged to the outside through the exhaust pipe. Step 3: During the deep purification of waste gas by the activated carbon purification cylinder mechanism, in conjunction with the hot air mechanism, the hot air mechanism delivers high-temperature hot air into the activated carbon purification cylinder mechanism. The high-temperature hot air heats the activated carbon particles, causing the adsorbate in the micropores of the activated carbon particles to automatically detach from the activated carbon upon encountering the high temperature, thus completing the regeneration of the activated carbon particles and restoring their adsorption capacity for use in the next adsorption process.

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