Waste gas treatment device and method for methyl ethyl ketone peroxide processing

Abstract

The invention discloses a methyl ethyl ketone peroxide processing waste gas treatment device and method, and relates to the technical field of waste gas treatment devices.The methyl ethyl ketone peroxide processing waste gas treatment device comprises a treatment pipeline, and an adsorption and degradation mechanism is arranged in the treatment pipeline; a circulating desorption mechanism is arranged on one side of the treatment pipeline and is used for forming an inert gas circulating desorption environment in the adsorption and degradation mechanism. According to the invention, the adsorption and degradation mechanism is arranged, a honeycomb-shaped activated carbon adsorption matrix of the adsorption and degradation mechanism performs efficient physical adsorption on pollutants such as peroxide small molecules and volatile organic compounds in waste gas by utilizing honeycomb pore channels with large specific surface areas, and a catalytic coating coated on the surface can realize directional degradation on the adsorbed peroxide small molecules; meanwhile, the heat conduction metal pipe rapidly conducts heat generated by degradation and a small amount of self-decomposition to the heat dissipation fins, the heat is taken away in cooperation with airflow of the auxiliary cooling mechanism, efficient purification of peroxide micromolecules and timely dissipation of the heat are achieved, and it is guaranteed that the adsorbent is always at the safe working temperature.

Description

An apparatus and method for treating waste gas from the processing of methyl ethyl ketone peroxide Technical Field

[0001] This invention relates to the field of waste gas treatment equipment, and in particular to a waste gas treatment device and method for the processing of methyl ethyl ketone peroxide. Background Technology

[0002] Methyl ethyl ketone peroxide (MEK), a strong oxidizing organic peroxide widely used in the curing of unsaturated polyester resins, generates complex waste gas during its processing, containing small peroxide molecules, volatile organic compounds (VOCs), acidic byproducts, and trace amounts of explosive impurities. This waste gas is characterized by its complex composition, flammability, explosiveness, and strong corrosiveness. Direct emission would cause severe environmental pollution and pose significant safety risks; therefore, it must be purified using specialized waste gas treatment equipment to meet emission standards. However, existing MEK processing waste gas treatment equipment still has the following drawbacks: First, small peroxide molecules tend to accumulate in the pores of the adsorption unit, undergoing a slow self-decomposition reaction under static conditions at room temperature. The released heat cannot be dissipated in time, leading to localized overheating and carbonization of the adsorbent, and even inducing the risk of combustion and explosion in the adsorption unit. Second, due to the thermal instability of small peroxide molecules, the hot air blower desorption method used in existing equipment accelerates peroxide decomposition, further amplifying safety hazards and failing to achieve safe desorption. Summary of the Invention

[0003] The purpose of this application is to provide a waste gas treatment device and method for the processing of methyl ethyl ketone peroxide, which can effectively solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this application provides the following technical solution: a waste gas treatment device for the processing of methyl ethyl ketone peroxide, comprising a treatment pipe, wherein an adsorption degradation mechanism is provided inside the treatment pipe; a circulating desorption mechanism is provided on one side of the treatment pipe, and is used to form an inert gas circulating desorption environment within the adsorption degradation mechanism; the adsorption degradation mechanism comprises: a separation plate, disposed inside the treatment pipe, and used to separate the treatment pipe into two independent cavities; a honeycomb activated carbon adsorption substrate, disposed on the separation plate, the two independent cavities being connected through honeycomb holes on the honeycomb activated carbon adsorption substrate; a catalytic coating being applied to the surface of the honeycomb activated carbon adsorption substrate; multiple heat-conducting metal tubes, inserted into the honeycomb holes of the honeycomb activated carbon adsorption substrate; a pair of mounting plates, respectively fixed at both ends of the heat-conducting metal tubes; multiple heat dissipation fins, fixed on the mounting plates; and an auxiliary cooling mechanism, disposed in the treatment pipe; the auxiliary cooling mechanism is used to generate airflow to remove heat from the heat dissipation fins.

[0005] Preferably, the auxiliary cooling mechanism includes a sleeve and a blower; the sleeve is coaxially sleeved on the processing pipe, and the sleeve and the processing pipe form a cooling cavity; the heat dissipation fins are disposed in the cooling cavity; the blower is installed at the bottom of the sleeve, and the top of the sleeve is provided with an air outlet; the output end of the blower passes through the cooling cavity and communicates with the air outlet.

[0006] Preferably, each of the heat dissipation fins is provided with a pair of rotating plates; the pair of rotating plates are hinged to each other, and a torsion spring is provided at the hinge position; when the rotating plates are unrestrained, the torsion spring is used to drive the pair of rotating plates to move closer to each other.

[0007] Preferably, the circulating desorption mechanism includes a nitrogen storage tank, a cryogenic thermostat, a circulating fan, an input pipe, and an output pipe; the nitrogen storage tank is located on one side of the processing pipeline, and the output end of the nitrogen storage tank is connected to the processing pipeline through the input pipe; the cryogenic thermostat is located on the input pipe and is used to control the temperature of the nitrogen introduced into the processing pipeline; the input end of the nitrogen storage tank is connected to the processing pipeline through the output pipe; the circulating fan is installed on the output pipe and is used to drive the nitrogen in the processing pipeline to achieve circulation.

[0008] Preferably, a gas distributor is provided inside the processing pipeline, and the gas distributor is located between the honeycomb activated carbon adsorption substrate and the input pipe; the low-temperature nitrogen gas discharged from the input pipe is dispersed by the gas distributor and then flows into the honeycomb activated carbon adsorption substrate, so as to evenly disperse the low-temperature nitrogen gas into each honeycomb channel of the honeycomb activated carbon adsorption substrate.

[0009] Preferably, the input pipe is provided with a spiral guide vane, which is used to guide the airflow to rotate and mix, so as to eliminate local temperature differences.

[0010] Preferably, a temperature monitoring mechanism is provided inside the processing pipeline; the temperature monitoring mechanism includes a controller and two sets of temperature sensors; one set of temperature sensors is disposed in the honeycomb activated carbon adsorption substrate, and the other set of temperature sensors is inserted into the heat-conducting metal pipe; the controller is installed on one side of the processing pipeline, and the temperature sensors and the controller are connected by signal control.

[0011] Preferably, the processing pipeline is equipped with a cooling and isolation mechanism for cooling and isolating the honeycomb activated carbon adsorption matrix.

[0012] Preferably, the cooling and isolation mechanism includes a nozzle, a delivery pipe, and a solenoid valve; the nozzle is disposed inside the processing pipe, and the output end of the nozzle is aligned with the honeycomb activated carbon adsorption substrate; a carbon dioxide storage tank is disposed on one side of the processing pipe, the output end of the carbon dioxide storage tank is connected to the nozzle through the delivery pipe, and the solenoid valve is installed on the delivery pipe.

[0013] A method for treating waste gas from the processing of methyl ethyl ketone peroxide (MEK) employs the aforementioned waste gas treatment device for MEK processing. Specifically, it includes the following steps: Step 1, Adsorption and Degradation: Waste gas is introduced into the treatment pipeline, and pollutants are physically adsorbed through the pores of the honeycomb activated carbon adsorption matrix. The large specific surface area enhances the adsorption capacity, while the honeycomb structure reduces the flow resistance of the waste gas. The heat generated by the degradation of small peroxide molecules and their self-decomposition is conducted to the heat dissipation fins through a heat-conducting metal pipe, and then removed by an auxiliary cooling mechanism. Step 2, Low Temperature... Desorption: When the honeycomb activated carbon adsorption matrix is ​​saturated, the circulating desorption mechanism starts working. At this time, the exhaust gas inlet valve and outlet valve are closed, and the airflow only circulates within the treatment pipeline and the circulating desorption mechanism. High-purity nitrogen is used as an inert desorption medium. Low-temperature nitrogen is introduced into the treatment pipeline through the circulating desorption mechanism. The low-temperature nitrogen purges the undegraded small molecule pollutants remaining in the honeycomb pores of the honeycomb activated carbon adsorption matrix. The pollutants carried by the returning nitrogen will be further degraded by the catalytic coating when the honeycomb activated carbon adsorption matrix is ​​purged again until desorption is complete.

[0014] In summary, the technical effects and advantages of this invention are as follows: 1. By setting up an adsorption and degradation mechanism, the honeycomb activated carbon adsorption matrix utilizes the honeycomb channels with a large specific surface area to efficiently physically adsorb pollutants such as peroxide small molecules and volatile organic compounds in the waste gas. The catalytic coating on the surface can achieve directional degradation of the adsorbed peroxide small molecules. At the same time, the heat-conducting metal pipe quickly conducts the heat generated by degradation and a small amount of self-decomposition to the heat dissipation fins. Combined with the airflow of the auxiliary cooling mechanism, the heat is carried away, achieving efficient purification of peroxide small molecules and timely heat dissipation, ensuring that the adsorbent is always at a safe operating temperature, and fundamentally ensuring the safety of the device operation.

[0015] 2. This invention, by setting up a circulating desorption mechanism, uses high-purity nitrogen as an inert desorption medium. After being controlled at a suitable low temperature by a low-temperature thermostat, it is introduced into the processing pipeline through the input pipe, and then evenly dispersed into each channel of the honeycomb activated carbon adsorption matrix by a gas distributor. Driven by a circulating fan, a closed-loop circulation purging is formed, realizing the safe and efficient regeneration of the adsorption matrix. The recycling of nitrogen reduces operating costs, and the low-temperature environment avoids the risk of thermal decomposition of peroxide small molecules, maintaining the stability of the adsorption matrix.

[0016] 3. This invention incorporates a temperature monitoring mechanism and a cooling isolation mechanism. Two sets of temperature sensors monitor the temperature data of the honeycomb activated carbon adsorption substrate and the heat-conducting metal pipe in real time. The controller processes the temperature signal promptly and triggers the cooling isolation mechanism when the temperature exceeds the limit. High-pressure carbon dioxide is sprayed evenly onto the surface of the adsorption substrate in a mist form through the nozzle, which quickly cools the substrate while isolating oxygen, forming a double safety protection. This ensures that the device can respond quickly when the temperature is abnormal, further improving the device's ability to cope with emergencies and ensuring the stability and reliability of the overall operation.

[0017] 4. By setting a spiral guide plate, the present invention guides the airflow to rotate and mix as the nitrogen flows through the input pipe, effectively eliminating local temperature differences generated during the heating or transportation of nitrogen, so that the temperature of the nitrogen entering the processing pipeline remains uniform. Combined with the dispersing effect of the gas distributor, the low-temperature nitrogen can evenly cover all the pores of the adsorption matrix, ensuring that the desorption process is uniform and sufficient, thereby improving the regeneration quality and efficiency of the adsorption matrix. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 is a schematic diagram of the overall three-dimensional structure of the present invention; Figure 2 is a schematic diagram of the overall three-dimensional structure with partial cross-section of the present invention; Figure 3 is a schematic diagram of the enlarged three-dimensional structure with partial cross-section of the adsorption degradation mechanism of the present invention; Figure 4 is a schematic diagram of the enlarged three-dimensional structure with front view of the treatment pipeline of the present invention; Figure 5 is a schematic diagram of the enlarged three-dimensional structure with first view of the adsorption degradation mechanism of the present invention; Figure 6 is a schematic diagram of the enlarged three-dimensional structure with second view of the adsorption degradation mechanism of the present invention; Figure 7 is a schematic diagram of the enlarged three-dimensional structure of the rotating plate of the present invention; Figure 8 is a schematic diagram of the enlarged three-dimensional structure with partial cross-section of the auxiliary cooling mechanism of the present invention; Figure 9 is a schematic diagram of the enlarged front view of the honeycomb activated carbon adsorption matrix of the present invention; Figure 10 is a schematic diagram of the enlarged three-dimensional structure of the circulating fan of the present invention; Figure 11 is a flowchart of the method of the present invention.

[0020] In the diagram: 1. Processing pipe; 2. Adsorption and degradation mechanism; 21. Isolation plate; 22. Honeycomb activated carbon adsorption matrix; 23. Heat-conducting metal pipe; 24. Mounting plate; 25. Heat dissipation fins; 26. Auxiliary cooling mechanism; 261. Sleeve; 262. Cooling chamber; 263. Blower; 264. Air outlet; 27. Rotating plate; 3. Circulating desorption mechanism; 31. Nitrogen storage tank; 32. Low-temperature thermostat; 33. Circulating fan; 34. Gas distributor; 35. Spiral guide vane; 36. Input pipe; 37. Output pipe; 4. Temperature monitoring mechanism; 41. Temperature sensor; 42. Controller; 5. Cooling and isolation mechanism; 51. Nozzle; 52. Delivery pipe; 53. Solenoid valve. Detailed Implementation

[0021] 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.

[0022] Example 1: Please refer to Figures 1-4 for a waste gas treatment device for the processing of methyl ethyl ketone peroxide, including a treatment pipe 1, an adsorption degradation mechanism 2 installed inside the treatment pipe 1; a circulating desorption mechanism 3 is installed on one side of the treatment pipe 1, which is used to form an inert gas circulating desorption environment within the adsorption degradation mechanism 2; the adsorption degradation mechanism 2 includes: a separation plate 21, a honeycomb activated carbon adsorption substrate 22, an auxiliary cooling mechanism 26, a pair of mounting plates 24, multiple heat-conducting metal pipes 23, and heat dissipation fins 25; wherein, the separation plate 21 is installed inside the treatment pipe 1 and is used to isolate the treatment pipe 1 into two independent cavities; the honeycomb activated carbon adsorption substrate 26 includes ... a honeycomb activated carbon adsorption substrate 23, a honeycomb activated carbon adsorption substrate 24, a honeycomb activated carbon adsorption substrate 25, a honeycomb activated carbon adsorption substrate 26, a honeycomb activated carbon adsorption substrate 26, a honeycomb activated carbon adsorption substrate 26, a honeycomb activated carbon adsorption substrate 26, a honeycomb activated carbon adsorption substrate 26, a honeycomb activated carbon adsorption substrate 26, a honeycomb activated carbon adsorption substrate 26, a honeycomb activated carbon adsorption substrate 26, a honeycomb activated carbon adsorption substrate 26, a honeycomb activated carbon adsorption substrate 26, a honeycomb activated carbon adsorption substrate 26, A honeycomb activated carbon adsorption substrate 22 is disposed on a separator plate 21, and two independent cavities are connected through honeycomb holes on the honeycomb activated carbon adsorption substrate 22; the surface of the honeycomb activated carbon adsorption substrate 22 is coated with a catalytic coating; multiple heat-conducting metal tubes 23 are inserted into the honeycomb holes of the honeycomb activated carbon adsorption substrate 22, and a gap is formed between the heat-conducting metal tubes 23 and the honeycomb holes to allow waste gas to pass through; a pair of mounting plates 24 are respectively fixed at both ends of the heat-conducting metal tubes 23; multiple heat dissipation fins 25 are fixed on the mounting plates 24; an auxiliary cooling mechanism 26 is disposed on the treatment pipe 1; the auxiliary cooling mechanism 26 is used to generate airflow to remove heat from the heat dissipation fins 25.

[0023] It should be noted that after the waste gas enters the treatment pipe 1, it passes through the honeycomb pores of the honeycomb activated carbon adsorption substrate 22. The activated carbon pores on the honeycomb pore walls physically adsorb pollutants such as peroxide small molecules and volatile organic compounds in the waste gas. The catalytic coating then directionally degrades the adsorbed peroxide small molecules. The heat generated during the degradation process, as well as the heat generated by the self-decomposition of a small amount of peroxide small molecules that are not degraded in time, is conducted to the heat dissipation fins 25 on the mounting plate 24 through the heat-conducting metal pipe 23. This assists the cooling mechanism 26 in generating airflow to remove the heat from the heat dissipation fins 25. When the honeycomb activated carbon adsorption substrate 22 is saturated with adsorption, the circulation desorption mechanism 3 is activated, forming an inert gas circulation desorption environment within the adsorption and degradation mechanism 2.

[0024] By incorporating the adsorption and degradation mechanism 2, the large specific surface area of ​​the honeycomb activated carbon adsorption matrix 22 enhances the adsorption capacity for pollutants. The honeycomb structure reduces the flow resistance of waste gas, and the catalytic coating enables the directional degradation of small peroxide molecules, preventing their accumulation within the pores of the adsorption unit. The combination of the heat-conducting metal pipe 23 and the heat dissipation fins 25 allows for rapid heat conduction and dissipation, effectively mitigating the risk of localized overheating, carbonization, or even combustion and explosion of the adsorbent due to insufficient heat dissipation. The circulating desorption mechanism 3 creates an inert gas circulating desorption environment, avoiding the problem of accelerated peroxide decomposition caused by existing temperature-raising desorption technologies and achieving safe desorption.

[0025] Referring to Figures 3 and 4, the auxiliary cooling mechanism 26 includes a sleeve 261 and a blower 263; the sleeve 261 is coaxially sleeved on the processing pipe 1, and the sleeve 261 and the processing pipe 1 form a cooling cavity 262; heat dissipation fins 25 are disposed in the cooling cavity 262; the blower 263 is installed at the bottom of the sleeve 261, and an air outlet 264 is provided at the top of the sleeve 261; the output end of the blower 263 passes through the cooling cavity 262 and communicates with the air outlet 264.

[0026] It should be noted that during the operation of the adsorption and degradation mechanism 2, the blower 263 is started, and the generated airflow enters the cooling chamber 262 from the bottom of the sleeve 261. The airflow flows in the cooling chamber 262 and passes through the gap between the heat dissipation fins 25, exchanging heat with the heat dissipation fins 25. The airflow that has absorbed heat is discharged from the air outlet 264 at the top, continuously carrying away the heat conducted by the heat-conducting metal pipe 23 to the heat dissipation fins 25.

[0027] The sleeve 261 and the processing pipe 1 form a closed cooling chamber 262, allowing airflow to be concentrated within the cooling chamber 262, thus avoiding the problem of low heat dissipation efficiency caused by dispersed airflow. The blower 263 provides a continuous and stable airflow, with the airflow entering from the bottom and exiting from the top, ensuring full contact with the heat dissipation fins 25 and maximizing heat removal. This ensures that the temperature inside the adsorption and degradation mechanism 2 remains at a low level, effectively preventing the accelerated self-decomposition of peroxide molecules due to temperature increases, further improving the heat dissipation effect and operational safety of the device.

[0028] Referring to Figures 5-7, each heat dissipation fin 25 is provided with a pair of rotating plates 27; the pair of rotating plates 27 are hinged to each other, and a torsion spring is provided at the hinge position; when the rotating plates 27 are unrestrained, the torsion spring is used to drive the pair of rotating plates 27 to move closer to each other.

[0029] It should be noted that when the blower 263 of the auxiliary cooling mechanism 26 starts to generate airflow, the airflow exerts a force on the rotating plate 27, driving the pair of rotating plates 27 to overcome the elastic force of the torsion spring and move away from each other, increasing the contact area between the airflow and the heat dissipation fins 25 and the rotating plate 27; when the blower 263 stops working, the rotating plate 27 loses the airflow restriction, and the elastic force of the torsion spring drives the pair of rotating plates 27 to move closer to each other, reducing the accumulation of dust and other impurities on the surface of the heat dissipation fins 25; when the rotating plates 27 rotate away from each other, they will change part of the airflow direction, allowing the airflow to flow through the heat-conducting metal pipe 23, further improving the heat dissipation effect.

[0030] The opening and closing action of the rotating plates 27 under the action of airflow increases the heat dissipation area and improves the heat exchange efficiency during the heat dissipation process, ensuring that the heat dissipation effect of the heat dissipation fins 25 remains at a high level. In the non-heat dissipation state, the rotating plates 27 are close to each other, effectively preventing dust and other impurities from adhering to the surface of the heat dissipation fins 25, avoiding the accumulation of impurities that affects the heat dissipation effect, extending the cleaning cycle and service life of the heat dissipation fins 25, and ensuring the heat dissipation stability during long-term operation of the device.

[0031] Referring to Figures 1-3 and 10, the circulating desorption mechanism 3 includes a nitrogen storage tank 31, a cryogenic thermostat 32, a circulating fan 33, an input pipe 36, and an output pipe 37. The nitrogen storage tank 31 is located on one side of the processing pipeline 1, and the output end of the nitrogen storage tank 31 is connected to the processing pipeline 1 through the input pipe 36. The cryogenic thermostat 32 is located on the input pipe 36 and is used to control the temperature of the nitrogen introduced into the processing pipeline 1. The input end of the nitrogen storage tank 31 is connected to the processing pipeline 1 through the output pipe 37. The circulating fan 33 is installed on the output pipe 37 and is used to drive the nitrogen in the processing pipeline 1 to achieve circulation.

[0032] It should be noted that when the honeycomb activated carbon adsorption substrate 22 is saturated, the exhaust gas inlet valve and outlet valve are closed. The exhaust gas inlet valve and outlet valve are existing technologies and are not shown in the figure, so they will not be described in detail. The high-purity nitrogen in the nitrogen storage tank 31 enters the treatment pipeline 1 through the input pipe 36. The low-temperature thermostat 32 controls the temperature of the nitrogen introduced into the treatment pipeline 1 to be at a low level. The circulating fan 33 is started, driving the nitrogen in the treatment pipeline 1 to flow back to the nitrogen storage tank 31 through the output pipe 37, forming a nitrogen circulation environment. During the circulation process, the low-temperature nitrogen purges the honeycomb pores of the honeycomb activated carbon adsorption substrate 22 to achieve desorption and regeneration.

[0033] Nitrogen is used as an inert desorption medium. Its chemical stability prevents it from reacting with peroxide molecules, thus avoiding the safety hazards associated with existing temperature-based desorption technologies. A cryogenic thermostat 32 controls the nitrogen temperature, ensuring the desorption process takes place at a low temperature and preventing accelerated decomposition of peroxide molecules. A circulating fan 33 drives the nitrogen circulation, enabling nitrogen reuse, reducing operating costs. Simultaneously, the circulating purging method ensures sufficient contact with the honeycomb activated carbon adsorption matrix 22, improving desorption efficiency and allowing the adsorption degradation mechanism 2 to quickly recover its adsorption performance, ensuring continuous and stable operation of the device.

[0034] Referring to Figure 3, a gas distributor 34 is installed in the processing pipe 1. The gas distributor 34 is located between the honeycomb activated carbon adsorption substrate 22 and the input pipe 36. The low-temperature nitrogen gas discharged from the input pipe 36 is dispersed by the gas distributor 34 and flows into the honeycomb activated carbon adsorption substrate 22 to uniformly disperse the low-temperature nitrogen gas into each honeycomb channel of the honeycomb activated carbon adsorption substrate 22.

[0035] It should be noted that when the circulating desorption mechanism 3 is working, the nitrogen gas output from the nitrogen storage tank 31 is discharged through the input pipe 36 and first enters the gas distributor 34. The gas distributor 34 disperses the concentrated nitrogen gas flow into multiple uniform gas flows. The dispersed low-temperature nitrogen gas flows into the honeycomb activated carbon adsorption matrix 22 and enters each honeycomb channel of the honeycomb activated carbon adsorption matrix 22 evenly to purge the residual undegraded small molecule pollutants in the channels.

[0036] The gas distributor 34 can effectively solve the problem of uneven distribution when nitrogen is introduced, so that low-temperature nitrogen can evenly cover all the honeycomb channels of the honeycomb activated carbon adsorption matrix 22, avoid insufficient desorption due to inadequate nitrogen purging in some channels, ensure consistent desorption effect of the entire adsorption matrix, improve the quality and efficiency of desorption and regeneration, and thus ensure the stability of subsequent adsorption and degradation performance of the adsorption and degradation mechanism 2.

[0037] Referring to Figure 8, a spiral guide vane 35 is provided inside the input pipe 36 to guide the airflow to rotate and mix, thereby eliminating local temperature differences.

[0038] It should be noted that when the circulating desorption mechanism 3 is running, when the nitrogen gas output from the nitrogen storage tank 31 flows through the input pipe 36, the spiral guide plate 35 guides the nitrogen gas flow to rotate and mix, so that the nitrogen gas is fully stirred during the flow. The local temperature difference that may exist is gradually eliminated during the rotation and mixing process. The nitrogen gas temperature after being treated by the spiral guide plate 35 remains uniform and consistent. Then, it is dispersed to each honeycomb channel of the honeycomb activated carbon adsorption matrix 22 through the gas distributor 34.

[0039] The spiral guide vane 35 guides the nitrogen gas to rotate and mix, effectively eliminating local temperature differences generated during nitrogen heating or transportation. This ensures that the nitrogen gas entering the treatment pipe 1 maintains a uniform temperature, preventing the decomposition of peroxide molecules due to excessively high local temperatures, while also preventing excessively low local temperatures from affecting the desorption effect. The uniformly heated nitrogen gas, after passing through the gas distributor 34, further enhances the uniformity and stability of desorption, protects the catalytic coating on the surface of the honeycomb activated carbon adsorption substrate 22, and extends the service life of the adsorption degradation mechanism 2.

[0040] Referring to Figures 3 and 9, a temperature monitoring mechanism 4 is installed inside the processing pipeline 1; the temperature monitoring mechanism 4 includes a controller 42 and two sets of temperature sensors 41; one set of temperature sensors 41 is installed in the honeycomb activated carbon adsorption substrate 22, and the other set of temperature sensors 41 is inserted into the heat-conducting metal pipe 23; the controller 42 is installed on one side of the processing pipeline 1, and the temperature sensors 41 and the controller 42 are connected by signal control; it is understood that the temperature sensors 41 and the controller 42 are existing technologies and will not be described in detail.

[0041] It should be noted that during the operation of the device, the two sets of temperature sensors 41 collect the temperature data of the honeycomb activated carbon adsorption substrate 22 and the heat-conducting metal tube 23 in real time, and transmit the collected temperature signals to the controller 42. The controller 42 analyzes and processes the temperature data, and when the temperature data exceeds the preset threshold, the controller 42 issues the corresponding control signal.

[0042] Two sets of temperature sensors 41 comprehensively monitor the temperature of the core components of the adsorption and degradation mechanism 2, ensuring comprehensive temperature monitoring. The controller 42 receives and processes temperature signals in real time, enabling timely detection of temperature anomalies and providing accurate data support for subsequent emergency response. This avoids risks such as adsorbent carbonization and explosion caused by undetected overheating. The temperature monitoring mechanism 4 makes the temperature control of the device more precise, improves the automation and safety of the device's operation, and effectively addresses potential temperature surges during the self-decomposition of peroxide small molecules.

[0043] Referring to Figures 1-3, a cooling and isolation mechanism 5 is provided on the processing pipe 1, which is used to cool and isolate the honeycomb activated carbon adsorption substrate 22.

[0044] It should be noted that when the temperature monitoring mechanism 4 detects that the temperature exceeds the preset threshold, the controller 42 sends a start signal to the cooling isolation mechanism 5, and the cooling isolation mechanism 5 starts to work. It cools the honeycomb activated carbon adsorption matrix 22 through a specific cooling medium and method, and at the same time forms an isolation protection to prevent heat diffusion and the expansion of the peroxide decomposition range.

[0045] Example 2: The technical solution of this example differs from that of Example 1 in that: referring to Figures 4-6, the cooling isolation mechanism 5 includes a nozzle 51, a delivery pipe 52, and a solenoid valve 53; the nozzle 51 is disposed in the processing pipe 1, and the output end of the nozzle 51 is aligned with the honeycomb activated carbon adsorption substrate 22; a carbon dioxide storage tank is disposed on one side of the processing pipe 1, and the output end of the carbon dioxide storage tank is connected to the nozzle 51 through the delivery pipe 52, and the solenoid valve 53 is installed on the delivery pipe 52.

[0046] It should be noted that when the controller 42 sends a start signal, the solenoid valve 53 opens, and the high-pressure carbon dioxide in the carbon dioxide storage tank is transported to the nozzle 51 through the delivery pipe 52. The nozzle 51 sprays the high-pressure carbon dioxide in a mist onto the surface and surrounding area of ​​the honeycomb activated carbon adsorption substrate 22 to achieve rapid cooling. At the same time, the carbon dioxide gas can isolate oxygen and inhibit the decomposition of peroxides.

[0047] Carbon dioxide, as a cooling medium, features rapid cooling, no residue, and no environmental pollution. The mist spraying method ensures that carbon dioxide evenly covers the honeycomb activated carbon adsorption substrate 22, guaranteeing uniform and sufficient cooling and rapidly reducing the temperature of the adsorption substrate. Simultaneously, carbon dioxide isolates oxygen, fundamentally inhibiting the self-decomposition reaction of small peroxide molecules, further reducing the risk of combustion and explosion.

[0048] A method for treating waste gas from the processing of methyl ethyl ketone peroxide (MEK), referring to Figures 1-11, employs the aforementioned waste gas treatment device for MEK processing; specifically, it includes the following steps: Step 1, Adsorption and Degradation: The waste gas introduced into the treatment pipe 1 is physically adsorbed by the activated carbon pores of the honeycomb activated carbon adsorption substrate 22, utilizing the large specific surface area to increase the adsorption capacity, while simultaneously reducing the flow resistance of the waste gas through the honeycomb structure; the heat generated by the degradation of small peroxide molecules and their self-decomposition is conducted to the heat dissipation fins 25 through the heat-conducting metal pipe 23, and then the heat is removed by the auxiliary cooling mechanism 26; Step 2 Low-temperature desorption: When the honeycomb activated carbon adsorption substrate 22 is saturated, the circulating desorption mechanism 3 operates. At this time, the exhaust gas inlet valve and outlet valve are closed, and the airflow only circulates within the treatment pipeline 1 and the circulating desorption mechanism 3. High-purity nitrogen is used as an inert desorption medium. Low-temperature nitrogen is circulated into the treatment pipeline 1 through the circulating desorption mechanism 3. The low-temperature nitrogen purges the undegraded small molecule pollutants remaining in the honeycomb pores of the honeycomb activated carbon adsorption substrate 22. The pollutants carried by the returning nitrogen are further degraded by the catalytic coating when the honeycomb activated carbon adsorption substrate 22 is purged again until desorption is complete.

[0049] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A waste gas treatment device for the processing of methyl ethyl ketone peroxide, comprising a treatment pipeline (1), characterized in that: The processing pipeline (1) is provided with an adsorption degradation mechanism (2) and a circulation desorption mechanism (3); the adsorption degradation mechanism (2) includes: a partition plate (21), which is disposed in the processing pipeline (1) and is used to isolate the processing pipeline (1) into two independent cavities; a honeycomb activated carbon adsorption substrate (22), which is disposed on the partition plate (21), and the two independent cavities are connected through the honeycomb holes on the honeycomb activated carbon adsorption substrate (22); the surface of the honeycomb activated carbon adsorption substrate (22) is coated with a catalytic coating; multiple heat-conducting metal tubes (23), which are inserted into the honeycomb holes of the honeycomb activated carbon adsorption substrate (22); a pair of mounting plates (24), which are respectively fixed at both ends of the heat-conducting metal tubes (23); and multiple heat dissipation fins (25), which are fixed on the mounting plates (24) to... An auxiliary cooling mechanism (26) is provided on the processing pipeline (1); the auxiliary cooling mechanism (26) is used to generate airflow to remove heat from the heat dissipation fins (25); the circulating desorption mechanism (3) includes a nitrogen storage tank (31), a low-temperature thermostat (32), a circulating fan (33), an input pipe (36), and an output pipe (37); the nitrogen storage tank (31) is provided on one side of the processing pipeline (1), and the output end of the nitrogen storage tank (31) is connected to the processing pipeline (1) through the input pipe (36); the low-temperature thermostat (32) is provided on the input pipe (36); the input end of the nitrogen storage tank (31) is connected to the processing pipeline (1) through the output pipe (37); the circulating fan (33) is installed on the output pipe (37).

2. The waste gas treatment device for the processing of methyl ethyl ketone peroxide according to claim 1, characterized in that: The auxiliary cooling mechanism (26) includes a sleeve (261) and a blower (263); the sleeve (261) is coaxially sleeved on the processing pipe (1), and the sleeve (261) and the processing pipe (1) form a cooling cavity (262); the heat dissipation fins (25) are disposed in the cooling cavity (262); the blower (263) is installed at the bottom of the sleeve (261), and the top of the sleeve (261) is provided with an air outlet (264); the output end of the blower (263) passes through the cooling cavity (262) and communicates with the air outlet (264).

3. The waste gas treatment device for the processing of methyl ethyl ketone peroxide according to claim 1, characterized in that: Each of the heat dissipation fins (25) is provided with a pair of rotating plates (27); the pair of rotating plates (27) are hinged to each other, and a torsion spring is provided at the hinge position; when the rotating plates (27) are unrestrained, the torsion spring is used to drive the pair of rotating plates (27) to move closer to each other.

4. The waste gas treatment device for the processing of methyl ethyl ketone peroxide according to claim 1, characterized in that: A gas distributor (34) is provided inside the processing pipe (1). The gas distributor (34) is located between the honeycomb activated carbon adsorption substrate (22) and the input pipe (36). The low-temperature nitrogen gas discharged from the input pipe (36) is dispersed by the gas distributor (34) and flows into the honeycomb activated carbon adsorption substrate (22) to uniformly disperse the low-temperature nitrogen gas into each honeycomb channel of the honeycomb activated carbon adsorption substrate (22).

5. The waste gas treatment device for the processing of methyl ethyl ketone peroxide according to claim 1, characterized in that: The input pipe (36) is provided with a spiral guide vane (35) to guide the airflow to rotate and mix, so as to eliminate local temperature differences.

6. The waste gas treatment device for the processing of methyl ethyl ketone peroxide according to claim 1, characterized in that: A temperature monitoring mechanism (4) is provided inside the processing pipeline (1); the temperature monitoring mechanism (4) includes a controller (42) and two sets of temperature sensors (41); one set of temperature sensors (41) is located on the honeycomb activated carbon adsorption substrate (22), and the other set of temperature sensors (41) is inserted into the heat-conducting metal pipe (23); the controller (42) is installed on one side of the processing pipeline (1), and the temperature sensors (41) and the controller (42) are connected by signal control.

7. The waste gas treatment device for the processing of methyl ethyl ketone peroxide according to claim 6, characterized in that: The processing pipe (1) is equipped with a cooling isolation mechanism (5) for cooling and isolating the honeycomb activated carbon adsorption matrix (22).

8. The waste gas treatment device for the processing of methyl ethyl ketone peroxide according to claim 7, characterized in that: The cooling isolation mechanism (5) includes a nozzle (51), a delivery pipe (52), and a solenoid valve (53); the nozzle (51) is installed in the processing pipe (1), and the output end of the nozzle (51) is aligned with the honeycomb activated carbon adsorption substrate (22); a carbon dioxide storage tank is provided on one side of the processing pipe (1), and the output end of the carbon dioxide storage tank is connected to the nozzle (51) through the delivery pipe (52), and the solenoid valve (53) is installed on the delivery pipe (52).

9. A method for treating waste gas from the processing of methyl ethyl ketone peroxide, characterized in that: The waste gas treatment device for processing methyl ethyl ketone peroxide according to any one of claims 1-8 includes the following steps: Step 1, adsorption degradation: the waste gas introduced into the treatment pipe (1) is physically adsorbed by the activated carbon pores of the honeycomb activated carbon adsorption matrix (22), which increases the adsorption capacity by utilizing the large specific surface area, and at the same time reduces the flow resistance of the waste gas by the honeycomb structure; the heat generated by the degradation of small molecules of peroxide and its self-decomposition is conducted to the heat dissipation fins (25) through the heat-conducting metal pipe (23), and then the heat is removed by the auxiliary cooling mechanism (26); Step 2, low temperature desorption: when the honeycomb activated carbon adsorption matrix (22) is desorbed by the activated carbon pores of the honeycomb activated carbon adsorption matrix (22), the waste gas is physically adsorbed by the activated carbon pores of the honeycomb activated carbon adsorption matrix (22), which increases the adsorption capacity by utilizing the large specific surface area, and at the same time reduces the flow resistance of the waste gas by the honeycomb structure; the heat generated by the degradation of small molecules of peroxide and its self-decomposition is conducted to the heat dissipation fins (25) through the heat-conducting metal pipe (23), and then the heat is removed by the auxiliary cooling mechanism (26); Step 2, low temperature desorption: when the honeycomb activated carbon adsorption matrix (22) is desorbed by the activated carbon adsorption matrix (22), the waste gas is desorbed by the activated carbon adsorption matrix (22) through the heat-conducting metal pipe (23), which increases the adsorption capacity of the activated carbon adsorption matrix (25), and then the heat is removed by the auxiliary cooling mechanism (26); After the activated carbon adsorption matrix (22) is saturated with adsorption, the circulating desorption mechanism (3) is activated. At this time, the control valves for the exhaust gas inlet and outlet are closed, and the airflow only circulates within the treatment pipeline (1) and the circulating desorption mechanism (3). High-purity nitrogen is used as an inert desorption medium. Low-temperature nitrogen is introduced into the treatment pipeline (1) through the circulating desorption mechanism (3). The low-temperature nitrogen purges the undegraded small molecule pollutants remaining in the honeycomb pores of the honeycomb activated carbon adsorption matrix (22). The pollutants carried by the returning nitrogen will be further degraded by the catalytic coating when the honeycomb activated carbon adsorption matrix (22) is purged again until the desorption is completed.

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