Styrene butadiene rubber processing waste gas treatment equipment and method adopting activated carbon

Abstract

The invention discloses butadiene styrene rubber processing waste gas treatment equipment and method adopting activated carbon, and relates to the technical field of waste gas treatment. According to the characteristic that butadiene styrene rubber processing waste gas is usually accompanied by high temperature, and the adsorption performance of activated carbon is easily influenced and attenuated by the high temperature, the cooling mechanism group senses the temperature of the waste gas in real time through a heat-conducting copper rod, and a spraying system is driven by utilizing the thermal expansion and cold contraction characteristics of mercury, so that automatic control of'temperature triggering-accurate spraying 'is realized; when the temperature exceeds the threshold value, the cooling liquid is uniformly sprayed on the surface of the activated carbon storage basket through the spray head assembly, so that the temperature of the activated carbon is quickly reduced through evaporative heat dissipation, and the optimal adsorption activity of the activated carbon is maintained; the problems that traditional activated carbon treatment equipment is low in adsorption efficiency and high in replacement frequency due to high temperature are solved, the position of the sliding sleeve on the push-pull rod is adjusted by referring to the scale line groove, and the temperature threshold value of spraying starting can be flexibly set.

Description

Technical Field

[0001] This invention relates to the field of waste gas treatment technology, specifically to a waste gas treatment device and method for styrene-butadiene rubber processing using activated carbon. Background Technology

[0002] Styrene-butadiene rubber (SBR) processing exhaust gas is a general term for volatile organic compounds (VOCs), odorous substances, and small amounts of particulate matter emitted during production and post-treatment. Short-term exposure can cause respiratory irritation, dizziness, nausea, and other symptoms. Long-term exposure to high concentrations of exhaust gas (such as styrene and butadiene) may damage the hematopoietic and nervous systems, and some components have carcinogenic risks.

[0003] Referring to the activated carbon regenerable waste gas treatment device disclosed in patent application CN117815833A, the device purifies waste gas through a waste gas purifier. A partitioning component divides the activated carbon particles into multiple independent treatment units, each purifying the waste gas independently. A regeneration mechanism individually regenerates the activated carbon particles in each treatment unit without affecting the other units. A sequence alternation device drives the partitioning component to rotate, causing the treatment units to rotate as well. This allows the regeneration mechanism to regenerate the activated carbon particles in each treatment unit sequentially. This eliminates the need for two adsorption towers, reducing equipment size, footprint, and investment, thus improving the practicality of the activated carbon regenerable waste gas treatment device. When waste gas is introduced into the aforementioned activated carbon regenerable waste gas treatment device, the high temperature of the input waste gas, combined with prolonged contact with the activated carbon surface, can cause spontaneous combustion and potentially lead to a fire. Current waste gas treatment devices typically employ an internal spray system to periodically spray cooling water onto the activated carbon to lower its temperature and prevent fires.

[0004] Among them, since the spray device is in the activated carbon box for a long time and is surrounded by exhaust gas, when the spray device is not working, dust particles and oily substances in the exhaust gas can easily enter the spray head and cause blockage, which will cause the spray head to be unable to spray out enough cooling water and lose its effective cooling capacity, thus causing the activated carbon to spontaneously combust. Secondly, in order to obtain the temperature of the activated carbon surface, the spray device must be equipped with a series of electrical components such as temperature sensors and controllers. However, these electrical components operate in high-temperature, impurity-filled exhaust gas for a long time, which will not only severely shorten their service life, but also affect the detection accuracy of the sensors due to the impurities in the exhaust gas, making it impossible to perform cooling actions in a timely manner.

[0005] Therefore, this invention proposes a waste gas treatment device and method for styrene-butadiene rubber processing using activated carbon to solve the above-mentioned problems. Summary of the Invention

[0006] To address the shortcomings of existing technologies, this invention provides a waste gas treatment device and method for styrene-butadiene rubber (SBR) processing using activated carbon. This solves the problem that in current methods, the spraying device is constantly surrounded by waste gas within the activated carbon chamber. When the spraying device is not in operation, dust particles and oily substances in the waste gas easily enter the spray head, causing blockage. This results in the spray head failing to spray sufficient cooling water, losing its effective cooling capacity, and potentially causing the activated carbon to spontaneously combust. Furthermore, to obtain the surface temperature of the activated carbon, the spraying device must be equipped with a series of electrical components such as temperature sensors and controllers. The long-term operation of these electrical components in high-temperature, impurity-filled waste gas not only severely shortens their lifespan but also affects the sensor's detection accuracy, preventing timely cooling actions.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a waste gas treatment device for styrene-butadiene rubber processing using activated carbon, comprising an activated carbon box and waste gas inlets and outlets located at both ends thereof, and further comprising: The upper and lower partitions are fixedly installed on the upper and lower sides of the activated carbon box, respectively. The upper and lower partitions are provided with exhaust gas flow channels on both sides of their relative inner walls. Each of the four exhaust gas flow channels can be detachably installed with an activated carbon storage basket for filtering exhaust gas from styrene-butadiene rubber processing. The cooling mechanism group consists of multiple equally spaced cooling mechanisms. These cooling mechanisms are mounted on the opposite side walls of the upper and lower partitions via mounting brackets. The group is used to automatically determine the timing of spraying coolant onto multiple activated carbon storage baskets based on the temperature change of the exhaust gas in the activated carbon box, and simultaneously adjust the amount of coolant sprayed per unit time according to the extent to which the exhaust gas temperature exceeds the preset value. The cooling mechanism also includes a temperature sensing component and an upper and lower water pipe disposed on the upper and lower sides of the temperature sensing component. The upper and lower water pipes are fixed to the temperature sensing component by connectors. Multiple nozzle assemblies for spraying coolant are evenly arranged on the outer wall of the upper and lower water pipes away from the temperature sensing component. The nozzle assembly can automatically shield the exhaust gas from interference when the exhaust gas temperature is lower than a preset value, avoiding the risk of particulate matter clogging itself. It can also perform automatic cleaning when changing from a high temperature state to a low temperature state, further reducing the risk of clogging.

[0008] Furthermore, the device also includes an exhaust gas passage formed between the upper and lower partitions, and the upper and lower partitions and the inner wall of the activated carbon box respectively form an upper gas overflow port and a lower gas overflow port for directing the purified exhaust gas to the exhaust port.

[0009] Furthermore, the temperature sensing component includes a mercury storage tube. Multiple heat-conducting copper rods are evenly arranged on one side of the interior of the mercury storage tube. Each heat-conducting copper rod is fixedly inserted through the mercury storage tube and extends to the outside. A cleaning unit for cleaning is collectively fitted around the exterior of the multiple heat-conducting copper rods. A piston is also sealed and slidably installed inside the mercury storage tube. A push-pull rod is fixedly installed at the end of the piston away from the heat-conducting copper rods. The push-pull rod is sealed and slidably inserted through the mercury storage tube and extends to the outside. An adjusting sleeve is slidably fitted at the end of the push-pull rod located outside the mercury storage tube. The adjusting sleeve and the push-pull rod are locked in position by a fastening bolt. A spring baffle is also fixedly installed on the inner wall of the mercury storage tube. A spring is slidably fitted on the outer wall of the push-pull rod, located between the piston and the spring baffle.

[0010] Furthermore, the side wall of the push-pull rod is provided with a scale groove for marking the position of the adjustment sleeve. The top and bottom of the adjustment sleeve are respectively fixedly provided with a first drive rod and a second drive rod through an upper L-shaped plate and a lower L-shaped plate. The side walls of the first drive rod and the second drive rod are uniformly provided with rack segments that cooperate with multiple nozzle assemblies at corresponding positions. While the first drive rod and the second drive rod synchronously drive multiple nozzle assemblies to run using the rack segments at corresponding positions, they also synchronously control the cleaning unit to perform the work of cleaning the heat-conducting copper rod.

[0011] Furthermore, the cleaning unit includes multiple equidistantly distributed scraper ring groups, which are fixedly connected to each other by two upper and lower connecting rods. Each scraper ring group is slidably sleeved on the outer wall of multiple heat-conducting copper rods. An upper guide sleeve and a lower guide sleeve are fixedly installed on the outer wall of the upper and lower connecting rods, respectively. The upper guide sleeve and the lower guide sleeve are fixedly connected to the first drive rod and the second drive rod, respectively.

[0012] Furthermore, the nozzle assembly includes a protective sleeve fixedly mounted on the outer wall of the water inlet or outlet pipe via a hoisting frame. The protective sleeve has bottom arc-shaped spray holes and side arc-shaped spray holes on its bottom and side walls, respectively. A nozzle is slidably and sealed inside the protective sleeve. The nozzle has bottom arc-shaped water supply holes and side arc-shaped water supply holes on its bottom and side walls, respectively, corresponding to and cooperating with the bottom and side arc-shaped spray holes. The bottom and side arc-shaped spray holes and the bottom and side arc-shaped water supply holes are initially staggered. A water inlet branch pipe for supplying coolant to the nozzle is rotatably and sealed at the top center of the nozzle, and a gear is also fixedly mounted on the top of the nozzle.

[0013] Furthermore, the initial state of the multiple rack segments and the gears at the corresponding positions is an unmeshed state, and the rack segments are set with a preset distance from the gears at the corresponding positions. This allows the exhaust gas temperature to change within a certain threshold without the nozzle assembly performing a spraying operation. Once the exhaust gas temperature exceeds the threshold, the nozzle assembly immediately performs a spraying cooling operation. By adjusting the position of the sliding sleeve on the push-pull rod through the scale groove, the distance between the multiple rack segments and the gears at the corresponding positions can be adjusted to complete the adjustment of the threshold value.

[0014] Furthermore, mercury is filled between the mercury storage tube and the heat-conducting copper rod.

[0015] This invention also discloses a method for treating waste gas from styrene-butadiene rubber (SBR) processing using activated carbon, for use in equipment for treating waste gas from SBR processing using activated carbon. The method includes the following steps: Step 1: Input the styrene-butadiene rubber processing waste gas into the activated carbon box through the waste gas inlet; Step 2: The waste gas from the styrene-butadiene rubber processing is purified by multiple activated carbon storage baskets and then discharged through the exhaust port; Step 3: Multiple activated carbon storage baskets are exposed to high-temperature exhaust gas for a long time, causing their own temperature to gradually rise. The cooling mechanism flexibly controls the timing of spraying coolant and the amount of coolant sprayed per unit time based on the temperature changes around the activated carbon storage baskets. Step 4: After the coolant comes into contact with the surface of the activated carbon storage basket, it evaporates rapidly to form water vapor. The water vapor is discharged from the exhaust port through the airflow to carry away some of the heat from the surface of the activated carbon storage basket.

[0016] This invention provides a device and method for treating waste gas from the processing of styrene-butadiene rubber using activated carbon. Compared with the prior art, it has the following advantages: 1. A device and method for treating waste gas from styrene-butadiene rubber (SBR) processing using activated carbon, comprising a waste gas flow channel design with upper and lower baffles, guiding the waste gas into multiple detachable activated carbon storage baskets to form a multi-channel synchronous adsorption structure. The waste gas must pass through the activated carbon storage baskets before being discharged through the upper and lower gas overflow outlets, extending the contact time between the waste gas and the activated carbon. Simultaneously, the parallel operation of multiple storage baskets expands the adsorption area, effectively improving the adsorption and removal efficiency of odors and toxic substances in the SBR waste gas, and avoiding the incomplete purification problem caused by a single adsorption channel.

[0017] 2. A device and method for treating styrene-butadiene rubber (SBR) processing waste gas using activated carbon. Given that SBR processing waste gas is typically accompanied by high temperatures, and the adsorption performance of activated carbon is easily affected and degraded by high temperatures, this invention addresses this issue by using a cooling mechanism that senses the waste gas temperature in real time via a heat-conducting copper rod. Utilizing the thermal expansion and contraction properties of mercury, it drives a spray system to achieve automated control of "temperature triggering - precise spraying." Specifically, spraying does not occur when the temperature does not reach a threshold, preventing the activated carbon from becoming damp and affecting adsorption. When the temperature exceeds the threshold, coolant is evenly sprayed onto the surface of the activated carbon storage basket through the nozzle assembly, rapidly reducing the activated carbon temperature through evaporative cooling and maintaining its optimal adsorption activity. This solves the problems of traditional activated carbon treatment equipment, such as decreased adsorption efficiency and high replacement frequency due to high temperatures.

[0018] 3. A device and method for treating exhaust gas from styrene-butadiene rubber (SBR) processing using activated carbon. By adjusting the position of the sliding sleeve on the push-pull rod with reference to the scale groove, the temperature threshold for spray start-up can be flexibly set. Each adjustment corresponds to a 0.5℃ change in the threshold. This allows for precise matching of spray start-up conditions to address temperature fluctuations in exhaust gas during different processes and time periods in SBR processing, such as the temperature difference between the initial startup and stable operation period. This avoids water waste caused by ineffective spraying and ensures that the activated carbon is not damaged by overheating under extreme high-temperature conditions. Furthermore, the spray volume is positively correlated with the exhaust gas temperature. When the temperature just exceeds the threshold, the water supply holes of the nozzle partially overlap with the spray holes of the protective sleeve, resulting in a smaller spray volume. As the temperature continues to rise, the drive rod continues to move until the holes completely overlap, maximizing the spray volume. This "on-demand adjustment" mode ensures rapid cooling at high temperatures while avoiding excessive spraying that could lead to excessive moisture occupying the activated carbon adsorption pores, achieving a balance between cooling and adsorption.

[0019] 4. A styrene-butadiene rubber (SBR) processing waste gas treatment device and method using activated carbon, employing a "misaligned sealing-rotational conduction" structure in the nozzle assembly. When the temperature is below a threshold, the water supply hole of the nozzle is misaligned with the spray hole of the protective sleeve, and the protective sleeve completely blocks the water supply hole, preventing particulate matter in the waste gas from entering the nozzle and causing blockage. When the temperature decreases and the nozzle resets, the hole position is misaligned again, forming a secondary seal. In addition, the rotation of the nozzle caused by temperature changes can slightly scrape the area around the hole, further reducing the risk of blockage and solving the problem of traditional spray nozzles being easily blocked by waste gas particles and requiring frequent disassembly and cleaning. Secondly, the temperature sensing is accurate and reliable. The heat-conducting copper rod is the core component of temperature detection. Its surface is easily covered with dust and impurities in the waste gas, affecting the heat transfer efficiency. The cleaning unit of this invention is synchronously linked with the drive rod: when the drive rod moves, it drives the scraper ring assembly to slide along the heat-conducting copper rod through the connecting rod to scrape off the surface deposits; when the temperature resets, the scraper ring assembly slides in the opposite direction to perform secondary cleaning. This design ensures that the heat-conducting copper rod remains clean at all times, maintains stable heat transfer efficiency, avoids temperature perception deviations caused by dust accumulation, and guarantees the accuracy of automated control of the cooling system.

[0020] 5. A device and method for treating styrene-butadiene rubber (SBR) processing waste gas using activated carbon. The starting of the cooling system, spray volume adjustment, nozzle sealing and conduction, and cleaning of the heat-conducting copper rods are all automatically completed through mechanical structures such as mercury thermal expansion and contraction and spring reset. This eliminates the need for additional sensors, controllers, or other electronic components, avoiding the risk of electronic equipment failure in high-temperature, corrosive waste gas environments. It also reduces the cost of manual monitoring and operation, improving the stability and safety of equipment operation. Secondly, the core transmission structure of the entire device, including the mercury storage tube, piston, drive rod, gear rack, etc., are all mechanical components with strong resistance to high and low temperatures and corrosion, making them suitable for the harsh environment of SBR processing waste gas, which is characterized by high temperature, dust, and trace amounts of corrosive substances. Compared to equipment relying on electronic control systems, it has a lower failure rate and longer service life. Furthermore, the cooling mechanism of this invention achieves automated control through mechanical structures, requiring minimal electrical energy consumption, resulting in lower energy consumption compared to electrically controlled cooling systems. In addition, precise spray adjustment and anti-clogging design reduce water waste and equipment maintenance energy consumption, significantly lowering overall operating costs.

[0021] 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

[0022] Figure 1 This is a schematic diagram of the first overall three-dimensional structure of the present invention; Figure 2 This is a schematic diagram of the second overall three-dimensional structure of the present invention; Figure 3 This is a schematic cross-sectional view of the present invention; Figure 4 This is a schematic diagram of the activated carbon removal box structure of the present invention; Figure 5 This is a schematic diagram of the upper and lower partitions in the assembled state of the present invention; Figure 6 This is a schematic diagram of the activated carbon box and the upper and lower partitions in the present invention. Figure 7 This is a schematic diagram of the cooling mechanism of the present invention; Figure 8 For the present invention Figure 7 A magnified structural diagram of part A in the diagram; Figure 9 This is a schematic diagram of the cleaning unit structure of the present invention; Figure 10 This is a cross-sectional view of the cooling mechanism of the present invention; Figure 11 For the present invention Figure 10 A magnified structural diagram of part B in the diagram; Figure 12 For the present invention Figure 10 A magnified structural diagram of part C in the diagram; Figure 13 This is a schematic diagram of the overall structure of the nozzle assembly of the present invention; Figure 14 This is a schematic diagram of the exploded state structure of the nozzle assembly of the present invention.

[0023] In the diagram: 1. Activated carbon box; 2. Exhaust gas inlet; 3. Exhaust outlet; 4. Upper baffle; 5. Lower baffle; 6. Exhaust gas flow channel; 7. Activated carbon storage basket; 8. Exhaust gas passage; 9. Cooling mechanism; 91. Temperature sensing component; 911. Mercury storage tube; 912. Thermally conductive copper rod; 913. Cleaning unit; 9131. Scraper ring assembly; 9132. Upper guide sleeve; 9133. Lower guide sleeve; 914. Piston; 915. Push-pull rod; 916. Adjusting sleeve; 917. Scale groove; 9 18. Upper L-shaped plate; 919. Lower L-shaped plate; 9110. First drive rod; 9111. Second drive rod; 92. Water inlet pipe; 93. Water outlet pipe; 94. Nozzle assembly; 941. Protective sleeve; 942. Bottom arc-shaped water spray hole; 943. Side arc-shaped water spray hole; 944. Lifting frame; 945. Nozzle; 946. Bottom arc-shaped water supply hole; 947. Side arc-shaped water supply hole; 948. Gear; 949. Water inlet branch pipe; 10. Upper gas overflow port; 11. Lower gas overflow port. Detailed Implementation

[0024] 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.

[0025] This invention provides two technical solutions: a waste gas treatment device for styrene-butadiene rubber processing using activated carbon, specifically including the following embodiments: like Figures 1-6 The first embodiment is shown: a styrene-butadiene rubber processing waste gas treatment device using activated carbon, including an activated carbon box 1 and waste gas inlets 2 and outlets 3 opened at both ends thereon, and further including: The upper partition 4 and the lower partition 5 are respectively fixedly installed on the upper and lower sides inside the activated carbon box 1. The upper partition 4 and the lower partition 5 are provided with exhaust gas flow channels 6 on both sides of their relative inner walls. Each of the four exhaust gas flow channels 6 can be detachably installed with an activated carbon storage basket 7 for filtering styrene-butadiene rubber processing exhaust gas. The cooling mechanism group consists of multiple equally spaced cooling mechanisms 9. The multiple cooling mechanisms 9 are installed between the opposite side walls of the upper partition 4 and the lower partition 5 by mounting brackets. It is used to automatically determine the time node for spraying coolant into multiple activated carbon storage baskets 7 according to the temperature change of the exhaust gas in the activated carbon box 1, and at the same time flexibly adjust the amount of coolant sprayed per unit time according to the extent that the exhaust gas temperature exceeds the preset value. The device also includes an exhaust gas passage 8, which is formed between the upper partition 4 and the lower partition 5. The upper partition 4 and the lower partition 5 are respectively formed with the inner wall of the activated carbon box 1 to form an upper gas overflow port 10 and a lower gas overflow port 11 for directing the purified exhaust gas to the exhaust port 3.

[0026] like Figures 7-14 The second embodiment is shown, differing from the first in that the cooling mechanism 9 further includes a temperature sensing component 91 and upper and lower water pipes 92 and 93 disposed on the upper and lower sides of the temperature sensing component 91. The upper and lower water pipes 92 and 93 are fixed to the temperature sensing component 91 via connectors. Multiple nozzle assemblies 94 for spraying coolant are evenly arranged on the outer walls of the upper and lower water pipes 92 and 93 away from the temperature sensing component 91. These nozzle assemblies 94 can automatically shield against exhaust gas interference when the exhaust gas temperature is below a preset value, avoiding the risk of particulate matter clogging them. They can also perform automatic cleaning when transitioning from a high-temperature state to a low-temperature state, further reducing the risk of clogging. Each end of the upper and lower water pipes 92 and 93 has a coolant inlet, which is connected to an external coolant input device via a pipe. It should be noted that the coolant is clean water.

[0027] In this embodiment, the temperature sensing component 91 includes a mercury storage tube 911. Multiple heat-conducting copper rods 912 are evenly arranged on one side of the interior of the mercury storage tube 911. Each heat-conducting copper rod 912 is fixedly inserted through the mercury storage tube 911 and extends to the outside. A cleaning unit 913 for cleaning is collectively fitted around the exterior of the multiple heat-conducting copper rods 912. A piston 914 is also sealed and slidably arranged inside the mercury storage tube 911. A push-pull rod 915 is fixedly arranged at the end of the piston 914 away from the heat-conducting copper rods 912. The push-pull rod 915 is sealed and slidably inserted through the mercury storage tube 911 and extends to the outside. An adjusting sleeve 916 is slidably fitted at the end of the push-pull rod 915 located outside the mercury storage tube 911. The adjusting sleeve 916 and the push-pull rod 915 are locked in position by a fastening bolt. A spring baffle is also fixedly arranged on the inner wall of the mercury storage tube 911. A spring is slidably fitted on the outer wall of the push-pull rod 915 between the piston 914 and the spring baffle. Both the spring baffle and the mercury storage tube 911 have exhaust ports at one end, which keeps the air pressure inside the mercury storage tube 911 near the upper L-shaped plate 918 stable when the piston 914 moves. The side wall of the push-pull rod 915 is also provided with a scale groove 917 for marking the position of the adjusting sleeve 916. The top and bottom of the adjusting sleeve 916 are respectively fixed with a first drive rod 9110 and a second drive rod 9111 via the upper L-shaped plate 918 and the lower L-shaped plate 919. The side walls of the first drive rod 9110 and the second drive rod 9111 are uniformly fixed with rack segments that cooperate with multiple nozzle assemblies 94 at corresponding positions. While the first drive rod 9110 and the second drive rod 9111 synchronously drive multiple nozzle assemblies 94 using the rack segments at corresponding positions, they also synchronously control the cleaning unit 913 to perform the work of cleaning the heat-conducting copper rod 912. When the adjusting sleeve 916 moves one scale distance to the left relative to the scale groove 917, the corresponding exhaust gas temperature increases by 0.5 degrees Celsius. Only then can the rack segment mesh with the gear 948 at the corresponding position, thus performing the spray cooling operation.

[0028] In this embodiment, the cleaning unit 913 includes multiple equidistantly distributed scraper ring groups 9131. These groups are fixedly connected to each other via upper and lower connecting rods. Each scraper ring group 9131 is slidably sleeved on the outer wall of multiple heat-conducting copper rods 912. An upper guide sleeve 9132 and a lower guide sleeve 9133 are respectively fixedly disposed on the outer wall of the upper and lower connecting rods. The upper guide sleeve 9132 and the lower guide sleeve 9133 are fixedly connected to the first drive rod 9110 and the second drive rod 9111, respectively. The upper guide sleeve 9132 and the lower guide sleeve 9133 are slidably sleeved on the outer wall of the upper water pipe 92 and the lower water pipe 93, respectively.

[0029] In this embodiment, the nozzle assembly 94 includes a protective sleeve 941 fixedly mounted on the outer wall of the water inlet pipe 92 or the water outlet pipe 93 via a lifting frame 944. The protective sleeve 941 has a bottom arc-shaped spray hole 942 and a side arc-shaped spray hole 943 respectively on its bottom and side walls. A nozzle 945 is slidably and sealed inside the protective sleeve 941. The nozzle 945 also has a bottom arc-shaped spray hole 942 and a side arc-shaped spray hole 943 respectively on its bottom and side walls. The nozzle 945 has a bottom arc-shaped water supply hole 946 and a side arc-shaped water supply hole 947, which are positioned correspondingly and cooperate with each other. The bottom arc-shaped spray hole 942, the side arc-shaped spray hole 943, the bottom arc-shaped water supply hole 946, and the side arc-shaped water supply hole 947 are initially staggered. The nozzle 945 has a sealed and rotatable inlet branch pipe 949 at the top center for supplying coolant to its interior. A gear 948 is also fixedly installed on the top of the nozzle 945. The inlet branch pipe 949 is connected to the upper water pipe 92 or the lower water pipe 93. The gear 948 in all nozzle assemblies 94 installed on the upper water pipe 92 is engaged with the first drive rod 9110. The gear 948 in all nozzle assemblies 94 installed on the lower water pipe 93 is engaged with the second drive rod 9111.

[0030] In this embodiment, the multiple rack segments and the corresponding gears 948 are initially in an unmeshed state, and a preset distance is set between the rack segments and the corresponding gears 948. This allows the exhaust gas temperature to vary within a certain threshold without the nozzle assembly 94 performing a spraying operation. Once the exhaust gas temperature exceeds this threshold, the nozzle assembly 94 immediately performs a spraying cooling operation. By adjusting the position of the sliding sleeve 916 on the push-pull rod 915 through the scale groove 917, the distance between the multiple rack segments and the corresponding gears 948 can be adjusted to complete the adjustment of the threshold value. That is, if it is required to increase the threshold, the distance between the multiple rack segments and the corresponding gears 948 in the initial state is increased; if it is required to decrease the threshold, the distance between the multiple rack segments and the corresponding gears 948 in the initial state is decreased.

[0031] In this embodiment, mercury is filled between the mercury storage tube 911 and the heat-conducting copper rod 912.

[0032] This invention also provides a method for treating waste gas from styrene-butadiene rubber (SBR) processing using activated carbon, for use in equipment for treating waste gas from SBR processing using activated carbon. The method includes the following steps: Step 1: Input the styrene-butadiene rubber processing waste gas into the activated carbon box 1 through waste gas inlet 2; Step 2: The waste gas from the styrene-butadiene rubber processing is purified by multiple activated carbon storage baskets 7 and then discharged through the exhaust port 3; Step 3: Multiple activated carbon storage baskets 7 are exposed to high-temperature exhaust gas for a long time, and their own temperature gradually increases. The cooling mechanism 9 flexibly controls the timing of spraying coolant and the amount of coolant sprayed per unit time according to the temperature change around the activated carbon storage baskets 7. Step 4: After the coolant comes into contact with the surface of the activated carbon storage basket 7, it evaporates rapidly to form water vapor. The water vapor is discharged from the exhaust port 3 through the airflow to carry away some of the heat from the surface of the activated carbon storage basket 7.

[0033] The specific process is as follows: the waste gas from the processing of styrene-butadiene rubber is introduced into the waste gas inlet 2 through the pipeline, and distributed to the positions of multiple waste gas flow channels 6 by the waste gas channel 8. The waste gas passes through the waste gas flow channels 6 and enters the activated carbon storage basket 7 at the corresponding position. The activated carbon in the activated carbon storage basket 7 adsorbs the odor and toxic substances in the waste gas. Then, the purified waste gas flows to the exhaust port 3 through the upper gas overflow port 10 and the lower gas overflow port 11, and is discharged through the pipeline to the subsequent purification equipment for further treatment.

[0034] When the high-temperature styrene-butadiene rubber processing waste gas enters the activated carbon box 1, the surfaces of multiple activated carbon storage baskets 7 are subjected to high temperatures for an extended period, causing their surface temperatures to gradually rise. Simultaneously, the high temperature acts on the surfaces of multiple heat-conducting copper rods 912, which transfer heat to the mercury in the mercury storage tube 911 through heat conduction. As the mercury is gradually heated, its volume expands, pushing the piston 914 away from the cleaning unit 913. Simultaneously, the push-pull rod 915 pushes the upper L-shaped plate 918 and the lower L-shaped plate 919 to move in the same direction. The first drive rod 9110... During the initial movement phase, the multiple rack segments fixed on the second drive rod 9111 are not engaged with the gear 948. Therefore, for a short period, the side arc-shaped water supply holes 947 and bottom arc-shaped water supply holes 946 in the multiple nozzle assemblies 94 are blocked by the outer wall of the protective sleeve 941 and cannot perform spraying. As the mercury continues to push the piston 914 to move, the multiple rack segments fixed on the first drive rod 9110 and the second drive rod 9111 begin to engage with the gear 948 at the corresponding positions, and the first drive rod 9110 and the second drive rod 9111... 111 During subsequent movement, the rack segment drives the gear 948 at the corresponding position to rotate gradually, causing a partial overlap between the bottom arc-shaped water supply hole 946 and the corresponding bottom arc-shaped water spray hole 942. Simultaneously, a partial overlap also occurs between the side arc-shaped water supply hole 947 and the corresponding side arc-shaped water spray hole 943. Since the upper water pipe 92 and the lower water pipe 93 are always connected to the external water pump, overlap also occurs between the bottom arc-shaped water supply hole 946 and the corresponding bottom arc-shaped water spray hole 942, and between the side arc-shaped water supply hole 947 and the corresponding side arc-shaped water spray hole 943. In the partially overlapping area, clean water is sprayed onto the surface of the surrounding activated carbon storage basket 7 through the bottom arc-shaped water spray hole 942 and the side arc-shaped water spray hole 943. After the clean water comes into contact with the surface of the activated carbon storage basket 7, it evaporates quickly to remove the heat from the surface of the activated carbon storage basket 7. When the temperature inside the activated carbon box 1 remains high and shows an upward trend, the first drive rod 9110 and the second drive rod 9111 continue to move to the right until they reach the limit distance. At this point, the side arc-shaped water supply hole 947 and the side arc-shaped water spray hole 943 completely overlap, and the bottom arc-shaped water spray hole 942 and the bottom arc-shaped water supply hole 946 completely overlap.

[0035] Meanwhile, when the first drive rod 9110 and the second drive rod 9111 move, they can simultaneously pull multiple scraper ring groups 9131 to move. When the scraper ring groups 9131 move, they scrape off the dust and impurities attached to the surface of the heat-conducting copper rod 912 to maintain the ability to accurately sense temperature changes. When the internal temperature of the activated carbon box 1 gradually decreases, the temperature inside the mercury storage tube 911 also decreases synchronously, and the mercury volume gradually decreases. The piston 914 gradually resets under the elastic force of the spring. At the same time, the multi-segment racks on the first drive rod 9110 and the second drive rod 9111 drive the gears 948 at the corresponding positions to rotate in opposite directions, so that the side arc-shaped water supply holes 947 and the bottom arc-shaped water supply holes 946 on the nozzle 945 are misaligned with the side arc-shaped water spray holes 943 and the bottom arc-shaped water spray holes 942 on the protective sleeve 941 to prevent dust from entering. When the first drive rod 9110 and the second drive rod 9111 reset, the multiple scraper ring groups 9131 perform a secondary scraping operation on the outer wall of the heat-conducting copper rod 912.

[0036] 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.

[0037] 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. A waste gas treatment device for styrene-butadiene rubber processing using activated carbon, comprising an activated carbon box and waste gas inlets and outlets opened at both ends thereof, characterized in that, Also includes: The upper and lower partitions are fixedly installed on the upper and lower sides of the activated carbon box, respectively. The upper and lower partitions are provided with exhaust gas flow channels on both sides of their relative inner walls. Each of the four exhaust gas flow channels can be detachably installed with an activated carbon storage basket for filtering exhaust gas from styrene-butadiene rubber processing. The cooling mechanism group consists of multiple equally spaced cooling mechanisms. These cooling mechanisms are mounted on the opposite side walls of the upper and lower partitions via mounting brackets. The group is used to automatically determine the timing of spraying coolant onto multiple activated carbon storage baskets based on the temperature change of the exhaust gas in the activated carbon box, and simultaneously adjust the amount of coolant sprayed per unit time according to the extent to which the exhaust gas temperature exceeds the preset value. The cooling mechanism also includes a temperature sensing component and an upper and lower water pipe disposed on the upper and lower sides of the temperature sensing component. The upper and lower water pipes are fixed to the temperature sensing component by connectors. Multiple nozzle assemblies for spraying coolant are evenly arranged on the outer wall of the upper and lower water pipes away from the temperature sensing component. The nozzle assembly can automatically shield the exhaust gas from interference when the exhaust gas temperature is lower than a preset value, avoiding the risk of particulate matter clogging itself. It can also perform automatic cleaning when changing from a high temperature state to a low temperature state, further reducing the risk of clogging.

2. The waste gas treatment equipment for styrene-butadiene rubber processing using activated carbon according to claim 1, characterized in that: The equipment also includes an exhaust gas passage formed between the upper and lower partitions, and the upper and lower partitions and the inner wall of the activated carbon box respectively form an upper gas overflow port and a lower gas overflow port for directing the purified exhaust gas to the exhaust port.

3. The waste gas treatment equipment for styrene-butadiene rubber processing using activated carbon according to claim 1, characterized in that: The temperature sensing component includes a mercury storage tube. Multiple heat-conducting copper rods are evenly arranged on one side of the inner side of the mercury storage tube. Each heat-conducting copper rod is fixedly inserted through the mercury storage tube and extends to the outside. A cleaning unit for cleaning is collectively fitted around the outside of the multiple heat-conducting copper rods. A piston is also sealed and slidably installed inside the mercury storage tube. A push-pull rod is fixedly installed at the end of the piston away from the heat-conducting copper rods. The push-pull rod is sealed and slidably inserted through the mercury storage tube and extends to the outside. An adjusting sleeve is slidably fitted at the end of the push-pull rod outside the mercury storage tube. The adjusting sleeve and the push-pull rod are locked in position by a fastening bolt. A spring baffle is also fixedly installed on the inner wall of the mercury storage tube. A spring is slidably fitted on the outer wall of the push-pull rod between the piston and the spring baffle.

4. The waste gas treatment equipment for styrene-butadiene rubber processing using activated carbon according to claim 3, characterized in that: The push-pull rod is also provided with a scale groove for marking the position of the adjustment sleeve. The top and bottom of the adjustment sleeve are respectively fixedly provided with a first drive rod and a second drive rod through an upper L-shaped plate and a lower L-shaped plate. The side walls of the first drive rod and the second drive rod are uniformly provided with rack segments that cooperate with multiple nozzle assemblies at corresponding positions. While the first drive rod and the second drive rod synchronously drive multiple nozzle assemblies to run using the rack segments at corresponding positions, they also synchronously control the cleaning unit to perform the work of cleaning the heat-conducting copper rod.

5. The waste gas treatment equipment for styrene-butadiene rubber processing using activated carbon according to claim 3, characterized in that: The cleaning unit includes multiple equidistantly distributed scraper ring groups, which are fixedly connected to each other by two upper and lower connecting rods. Each scraper ring group is slidably sleeved on the outer wall of multiple heat-conducting copper rods. An upper guide sleeve and a lower guide sleeve are fixedly installed on the outer wall of the upper and lower connecting rods, respectively. The upper guide sleeve and the lower guide sleeve are fixedly connected to the first drive rod and the second drive rod, respectively.

6. The waste gas treatment equipment for styrene-butadiene rubber processing using activated carbon according to claim 4, characterized in that: The nozzle assembly includes a protective sleeve fixed to the outer wall of the water inlet or outlet pipe via a hoisting frame. The protective sleeve has bottom arc-shaped spray holes and side arc-shaped spray holes on its bottom and side walls, respectively. A nozzle is slidably and sealed inside the protective sleeve. The nozzle also has bottom arc-shaped water supply holes and side arc-shaped water supply holes on its bottom and side walls, corresponding to and cooperating with the bottom and side arc-shaped spray holes. These holes are initially staggered. A water inlet branch pipe for supplying coolant to the nozzle is rotatably and sealed at the top center of the nozzle, and a gear is fixedly mounted on the top of the nozzle.

7. The waste gas treatment equipment for styrene-butadiene rubber processing using activated carbon according to claim 6, characterized in that: The multiple rack segments and the corresponding gears are initially in an unmeshed state, and the rack segments are set at a preset distance from the corresponding gears. This allows the exhaust gas temperature to vary within a certain threshold without the nozzle assembly performing a spraying operation. Once the exhaust gas temperature exceeds the threshold, the nozzle assembly immediately performs a spraying cooling operation. By adjusting the position of the sliding sleeve on the push-pull rod through the scale groove, the distance between the multiple rack segments and the corresponding gears can be adjusted to complete the adjustment of the threshold value.

8. The waste gas treatment equipment for styrene-butadiene rubber processing using activated carbon according to claim 3, characterized in that: Mercury is filled between the mercury storage tube and the heat-conducting copper rod.

9. A method for treating waste gas from styrene-butadiene rubber (SBR) processing using activated carbon, used in the SBR processing waste gas treatment equipment using activated carbon as described in any one of claims 1-8, characterized in that: The method includes the following steps: Step 1: Input the styrene-butadiene rubber processing waste gas into the activated carbon box through the waste gas inlet; Step 2: The waste gas from the styrene-butadiene rubber processing is purified by multiple activated carbon storage baskets and then discharged through the exhaust port; Step 3: Multiple activated carbon storage baskets are exposed to high-temperature exhaust gas for a long time, causing their own temperature to gradually rise. The cooling mechanism flexibly controls the timing of spraying coolant and the amount of coolant sprayed per unit time based on the temperature changes around the activated carbon storage baskets. Step 4: After the coolant comes into contact with the surface of the activated carbon storage basket, it evaporates rapidly to form water vapor. The water vapor is discharged from the exhaust port through the airflow to carry away some of the heat from the surface of the activated carbon storage basket.

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