Centralized treatment device and method for tail gas in coconut shell activated carbon production

Abstract

The invention discloses a tail gas centralized treatment device and method in coconut shell activated carbon production, and relates to the technical field of tail gas treatment.The tail gas centralized treatment device in coconut shell activated carbon production comprises a base, a carbonizing machine is fixedly installed at the top of the base, and a heat exchange machine is fixedly installed at the top of the base; the tail gas centralized treatment device comprises a base, a heat exchanger is fixedly mounted at the top of the base, a gas conveying pipe fixedly penetrates through the bottom of the heat exchanger, a treatment barrel is fixedly mounted at the top of the base, and a cyclone separator is fixedly mounted at the top of the treatment barrel. At the moment, the cyclone separator is started and separates out large-particle impurities in the tail gas, so that equipment is prevented from being blocked and abraded, the service life is prolonged, the load on equipment parts can be reduced, the overall purification efficiency is improved, subsequent treatment is facilitated, and the situation that the large-particle impurities wrap reactants to affect the solid-liquid separation efficiency is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of tail gas treatment, and specifically to a device and method for centralized treatment of tail gas in the production of coconut shell activated carbon. Background Art

[0002] Coconut shell activated carbon is a kind of activated carbon made from coconut shells, which has a high specific surface area and good adsorption performance.

[0003] The patent with the patent announcement number CN217312723U relates to a device and method for centralized treatment of tail gas in the production of coconut shell activated carbon, including an air intake mechanism, and a purification mechanism is installed at the upper end of the air intake mechanism; the air intake mechanism includes a base, a ventilation pipe is fixedly connected inside the base, one end of the outer part of the ventilation pipe is fixedly connected with a connecting pipe, an air intake valve is fixedly connected to the middle of the back of the connecting pipe, and fine holes are opened in the middle of the upper surface of the base. This patent fixes the device through the base, the air intake valve controls the rate of the tail gas in the production of activated carbon entering the connecting pipe, and multiple through holes on the surface of the ventilation pipe evenly lead out the tail gas in the production of activated carbon, enter the fine holes of the base, and the evenly distributed fine holes disperse the tail gas evenly again, thereby reducing the air flow speed, so that the tail gas can act slowly and evenly with the purification liquid in the purification box, improving the tail gas purification rate.

[0004] In the above patent, the device is fixed through the base, and the air intake valve controls the rate of the tail gas in the production of activated carbon entering the connecting pipe, thereby reducing the air flow speed, so that the tail gas can act slowly and evenly with the purification liquid in the purification box, improving the tail gas purification rate. However, when the tail gas enters the equipment for treatment, large particle impurities will exacerbate the wear of filters, fans, pipelines and other equipment, shortening the service life of the equipment. Therefore, a device for centralized treatment of tail gas in the production of coconut shell activated carbon with a pre-treatment and solid-liquid separation and recycling function is designed. Summary of the Invention

[0005] Aiming at the deficiencies of the prior art, the present invention provides a device and method for centralized treatment of tail gas in the production of coconut shell activated carbon, and solves the problems raised in the above background art.

[0006] To achieve the above object, the present invention is realized through the following technical solutions: A tail gas centralized treatment device and method in the production of coconut shell activated carbon, including a base, on the top of which a carbonization machine is fixedly installed, and a heat exchanger is fixedly installed on the top of the base. A gas transmission pipe penetrates through the bottom of the heat exchanger. A treatment cylinder is fixedly installed on the top of the base, and a cyclone separator is fixedly installed on the top of the treatment cylinder. An air inlet pipe penetrates through the bottom of the cyclone separator. A water storage ring is fixedly installed on the circumferential surface of the treatment cylinder. A purification device for pre-separating and then purifying the tail gas is arranged on the circumferential surface of the treatment cylinder. The purification device includes a first motor fixedly installed on the circumferential surface of the treatment cylinder. A rotating shaft penetrates through the top of the treatment cylinder in a rotating manner. A molecular sieve is rotatably installed on the inner wall of the treatment cylinder. A second motor is fixedly installed on the surface of the treatment cylinder. A filter plate is fixedly installed on the inner wall of the treatment cylinder. A scraping plate is fixedly installed on the circumferential surface of the rotating shaft. A convex block is fixedly installed on the inner wall of the treatment cylinder. A sieve plate is fixedly installed on the circumferential surface of the rotating shaft. A stirring plate is fixedly installed at the bottom of the sieve plate, which can prevent blockage and wear of the equipment, extend the service life, reduce the load on equipment components, improve the overall purification efficiency, facilitate subsequent treatment, and avoid large particle impurities from wrapping the reactants and affecting the solid-liquid separation efficiency.

[0007] According to the above technical solution, one end of the rotating shaft away from the first motor is fixedly installed with a centrifugal cylinder. A collection cylinder is sleeved on the circumferential surface of the centrifugal cylinder. A fixing plate is fixedly installed on the circumferential surface of the rotating shaft. A rotating wheel is fixedly installed on the circumferential surface of the fixing plate. A spiral plate is fixedly installed on the circumferential surface of the fixing plate away from the rotating wheel. A circulation pipe penetrates through the bottom of the collection cylinder. The carbonization machine is communicated with the heat exchanger. One end of the gas transmission pipe away from the heat exchanger penetrates through the surface of the cyclone separator. A first transmission belt is rotatably connected between the first motor and the rotating shaft. A reciprocating thread groove is formed on the circumferential surface of the rotating shaft. Filter holes for centrifugal sieving are formed on the surface of the centrifugal cylinder. One end of the circulation pipe away from the collection cylinder penetrates through the water storage ring, which improves the reaction rate and contact area between the lime water and the tail gas, thereby improving the reaction effect, and at the same time enhancing the desulfurization reaction rate and thoroughness.

[0008] According to the above technical solution, a second transmission belt is rotatably connected between the molecular sieve and the second motor. An arc surface one for contact collision and generating vibration is arranged on the surface of the scraping plate away from the rotating shaft. An arc surface two for assisting contact collision is arranged on the surface of the convex block. The treatment cylinder penetrates through the surface of the stirring plate. The filter plate is slidably connected with the scraping plate. The fixing plate is fixedly connected with the inner wall of the centrifugal cylinder. The rotating wheel is in contact with the surface of the gas transmission pipe. The spray pipe penetrates through the water storage ring, realizing the recycling of the lime water, reducing the waste of chemicals, lowering the operation cost, simultaneously realizing the regeneration of the chemicals after solid-liquid separation, forming a closed environmental protection loop, and at the same time enhancing the resource recycling efficiency and reducing the waste water discharge.

[0009] According to the above technical solution, a cleaning device for cleaning the equipment is provided on the circumferential surface of the rotating shaft to avoid operation failures caused by tar adhesion. The cleaning device includes a rotating cylinder, which is slidably installed on the circumferential surface of the rotating shaft. A support plate is fixedly installed on the circumferential surface of the rotating cylinder. A first rotating rod is rotatably penetrated through the surface of the support plate. An activated carbon plate is fixedly installed on the circumferential surface of the first rotating rod. A cleaning cylinder is fixedly installed at one end of the support plate away from the rotating cylinder. A brush plate is slidably installed on the surface of the stirring plate. A connecting plate is fixedly installed at the top of the brush plate. A first telescopic elastic rod is fixedly installed on the surface of the sieve plate, avoiding the accumulation of viscous substances and affecting the mass transfer efficiency; preventing the tar from solidifying to form hard scale, reducing the frequency of manual cleaning, maintaining the long-term stable operation of the equipment, and at the same time reducing the abnormal load of transmission components caused by adhesion.

[0010] According to the above technical solution, the rotating cylinder and the rotating shaft are connected by threads. The circumferential surface of the cleaning cylinder is provided with bristles for cleaning the inner wall of the treatment cylinder, avoiding a large amount of tar adhering to the surface of the stirring plate during long-term operation, thereby affecting its operation efficiency and effect. At the same time, the tar impurities on the surface of the stirring plate are cleaned, improving the service life of the stirring plate.

[0011] According to the above technical solution, the free end of the first telescopic elastic rod is fixedly connected to the connecting plate. The connecting plate slidably penetrates through the surface of the sieve plate. Leakage holes for filtering tar are opened at the bottom of the cleaning cylinder, improving the adsorption effect on particles in the tail gas.

[0012] According to the above technical solution, a pressure filtration device for filtering tar is provided on the surface of the support plate. The pressure filtration device includes a second rotating rod, which is rotatably penetrated through the surface of the support plate. A pressure filtration roller is fixedly installed on the circumferential surface of the second rotating rod. A roller is fixedly installed on the circumferential surface of the second rotating rod. An eccentric wheel is fixedly installed on the circumferential surface of the second rotating rod. A sliding toothed plate is slidably installed on the surface of the support plate. A gear is fixedly installed on the circumferential surface of the first rotating rod. A second telescopic elastic rod is fixedly installed on the surface of the sliding toothed plate, avoiding tar adhering to equipment components. At the same time, the collected tar residue can be used as fuel, realizing the conversion of pollutants into resources, further improving the environmental protection of the equipment, and the tar after pressure filtration is not easy to volatilize harmful gases.

[0013] According to the above technical solution, the free end of the second telescopic elastic rod is fixedly connected to the support plate. The sliding toothed plate is engaged with the gear. An arc surface three for assisting the upward movement force is provided at one end of the sliding toothed plate close to the eccentric wheel. The roller is in contact with the cleaning cylinder, further improving the purification and adsorption effect of the activated carbon plate on the tail gas, covering a larger space range at the same time, and significantly increasing the adsorption amount of pollutants within the same residence time.

[0014] An exhaust gas centralized treatment device in the production of coconut shell activated carbon. Using the above-mentioned exhaust gas centralized treatment device in the production of coconut shell activated carbon, it includes: Step 1: The exhaust gas is discharged into the interior of the heat exchanger through the carbonization machine, and the heat exchanger cools down the exhaust gas. Subsequently, the cooled exhaust gas is discharged into the interior of the cyclone separator through the gas pipeline. At this time, the cyclone separator is started, and the cyclone separator separates the large particle impurities in the exhaust gas; Step 2: The treated exhaust gas is then discharged into the interior of the treatment cylinder through the intake pipe. Subsequently, the water storage ring is started, and the water storage ring pumps lime water into the interior of the spray pipe. The spray pipe sprays the lime water through the spray heads to spray the exhaust gas inside the treatment cylinder, and the exhaust gas reacts when it comes into contact with the lime water; Step 3: Start Motor 1. The output end of Motor 1 rotates to drive Belt 1 to rotate. Belt 1 rotates to drive the rotating shaft to rotate. The rotating shaft rotates to drive the sieve plate to rotate. At the same time, the sieve plate rotates to drive the stirring plate to rotate to fully stir the lime water accumulated inside the treatment cylinder; Step 4: The rotating shaft rotates to drive the fixed plate to rotate. The fixed plate rotates to drive the centrifugal cylinder to rotate. The centrifugal cylinder rotates to throw out the water in the reactants and water accumulated inside the centrifugal cylinder through centrifugal force. The lime water separated by the centrifugal cylinder enters the interior of the collection cylinder. Subsequently, the lime water is pumped into the water storage ring through the circulation pipe to realize the recycling of the lime water; Step 5: When the exhaust gas after reaction desulfurization floats upward, at this time, start Motor 2. The output end of Motor 2 rotates to drive Belt 2 to rotate. Belt 2 rotates to drive the molecular sieve to rotate. The rotation of the molecular sieve improves the purification and adsorption effect on the exhaust gas. Subsequently, the purified exhaust gas is discharged from the top of the treatment cylinder; Step 6: The rotating shaft rotates under the action of Motor 1. The rotating shaft rotates to drive the scraper to rotate. The scraper rotates to scrape off the exhaust gas particles and tar attached or adhered to the surface of the filter plate. When the scraper rotates and contacts and collides with the surface of the convex block, it vibrates at this time. At this time, the scraper vibrates under the action of the convex block, and the scraper improves the cleaning effect on the surface of the filter plate; Step 7: The rotating shaft rotates under the action of Motor 1 to drive the fixed plate to rotate. The fixed plate rotates to drive the runner to rotate around the rotating shaft as the center. At the same time, because the runner contacts the surface of the treatment cylinder, the runner rotates and rotates on its own under the action of the treatment cylinder. At this time, the runner rotates to drive the spiral plate to rotate. The spiral plate rotates to stir and turn over the reactants accumulated inside the centrifugal cylinder, improving the separation effect of the centrifugal cylinder on the reactants.

[0015] The present invention provides an exhaust gas centralized treatment device and method in the production of coconut shell activated carbon. It has the following beneficial effects:

[0016] (1)The tail gas centralized treatment device in the production of coconut shell activated carbon cools the tail gas through a heat exchanger to avoid damaging the downstream pipeline due to high temperature. Moreover, the cooled tail gas is more easily absorbed or reacted by the subsequent purification process. At the same time, it avoids leakage caused by the thermal expansion and contraction of the pipeline due to high temperature. The tail gas after cooling treatment is discharged into the interior of the cyclone separator through a gas pipeline. At this time, the cyclone separator is started, and the cyclone separator separates large particle impurities in the tail gas to prevent blockage and abrasion of equipment and extend its service life. The rotation of the rotating shaft drives the sieve plate to rotate, and at the same time, the rotation of the sieve plate drives the stirring plate to rotate to fully stir the lime water accumulated inside the treatment cylinder, improving the reaction rate and contact area between the lime water and the tail gas, thereby improving the reaction effect and simultaneously enhancing the desulfurization reaction rate and thoroughness.

[0017] (2)The tail gas centralized treatment device in the production of coconut shell activated carbon rotates the centrifugal cylinder to throw out the water in the reactants accumulated inside the centrifugal cylinder through centrifugal force, realizing the separation of the water in the reactants and simultaneously collecting the reactants centrally. The lime water separated by the centrifugal cylinder enters the interior of the collection cylinder, and then the lime water is pumped into the water storage ring through a circulation pipe, realizing the recycling of the lime water, reducing the waste of chemicals, lowering the operating cost, and simultaneously realizing the regeneration of the chemicals after solid-liquid separation, forming a closed environmental protection loop, and at the same time enhancing the resource recycling efficiency and reducing wastewater discharge.

[0018] (3)The tail gas centralized treatment device in the production of coconut shell activated carbon rotates the rotating shaft under the action of the first motor. The rotation of the rotating shaft drives the scraper to rotate, and the rotation of the scraper scrapes off the tail gas particles and tar attached or adhered to the surface of the filter plate, avoiding the accumulation of impurities and blocking the filter holes, maintaining the permeability of the filter plate, and keeping it in a good working state at all times. At the same time, when the scraper rotates and touches and collides with the surface of the convex block, vibration occurs at this time, and the scraper vibrates under the action of the convex block, improving the cleaning effect on the surface of the filter plate. At the same time, it avoids the scraper sticking to tar during the cleaning of the filter plate and thus affecting its working efficiency, enhancing the peeling ability of stubborn impurities in the gaps of the filter plate. The runner rotates and rotates self-driven under the action of the treatment cylinder. At this time, the rotation of the runner drives the spiral plate to rotate, and the rotation of the spiral plate stirs and turns the reactants accumulated inside the centrifugal cylinder, improving the separation effect of the centrifugal cylinder on the reactants, effectively reducing the phenomenon of material agglomeration, avoiding uneven centrifugal force conduction caused by local excessive accumulation, and enhancing the thoroughness of the solid-liquid two-phase separation.

[0019] (4) The tail gas centralized treatment device in the production of coconut shell activated carbon rotates around the rotating shaft by the activated carbon plate under the action of tail gas and spraying, improving the adsorption effect of particles in the tail gas. The brush bristles rotate under the action of the cleaning cylinder to clean the impurities, reactants or tar attached or adhered to the inner wall of the treatment cylinder, avoiding the accumulation of viscous substances and affecting the mass transfer efficiency; preventing the tar from solidifying to form hard scale, reducing the frequency of manual cleaning, maintaining the long-term stable operation of the equipment, and at the same time reducing the abnormal load of transmission components caused by adhesion.

[0020] (5) The tail gas centralized treatment device in the production of coconut shell activated carbon moves downward by the cleaning cylinder to contact and squeeze the connecting plate to move downward. At the same time, the movement of the connecting plate drives the brush plate to move downward. At this time, the brush plate moves downward to clean the surface of the stirring plate, avoiding a large amount of tar adhering to the surface of the stirring plate during long-term operation, thereby affecting its operation efficiency and effect. At the same time, the tar impurities on the surface of the stirring plate are cleaned, improving the service life of the stirring plate.

[0021] (6) The tail gas centralized treatment device in the production of coconut shell activated carbon allows the filtered tar to enter the inside of the centrifugal cylinder, and then is centrally processed by the staff, avoiding tar adhering to equipment components. At the same time, the collected tar residue can be used as fuel, realizing the conversion of pollutants into resources, further improving the environmental protection of the equipment. And the tar after pressure filtration is not easy to volatilize harmful gases. The gear rotates to drive the first rotating rod to rotate, and at the same time, the rotation of the first rotating rod drives the activated carbon plate to rotate. At this time, the activated carbon plate rotates stably under the action of the gear, further improving the purification and adsorption effect of the activated carbon plate on the tail gas, covering a larger space range at the same time, and significantly increasing the adsorption amount of pollutants within the same residence time. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a schematic diagram of the overall structure of the present invention; Figure 2 is a schematic diagram of the overall internal structure of the present invention; Figure 3 is a schematic diagram of the positional structure of the sieve plate and the stirring plate of the present invention; Figure 4 is a schematic diagram of the positional structure of the first rotating rod and the activated carbon plate of the present invention; Figure 5 is for the present invention Figure 4 enlarged schematic diagram of part A structure; Figure 6 is a schematic diagram of the positional structure of the rotating cylinder and the support plate of the present invention; Figure 7 is a schematic diagram of the positional structure of the sliding tooth plate and the gear of the present invention.

[0023] In the figure: 1. Base; 2. Carbonization machine; 3. Heat exchanger; 41. Gas transmission pipe; 42. Treatment cylinder; 43. Cyclone separator; 44. Intake pipe; 45. Water storage ring; 46. Spray pipe; 51. Motor 1; 52. Rotating shaft; 53. Molecular sieve; 54. Motor 2; 55. Filter plate; 56. Scraper; 57. Protrusion; 58. Sieve plate; 59. Stirring plate; 510. Centrifugal cylinder; 511. Collection cylinder; 512. Fixed plate; 513. Runner; 514. Spiral plate; 515. Circulation pipe; 61. Rotary cylinder; 62. Support plate; 63. Rotating rod 1; 64. Activated carbon plate; 65. Cleaning cylinder; 66. Brush plate; 67. Connection plate; 68. Telescopic spring rod 1; 71. Rotating rod 2; 72. Filter press roller; 73. Roller; 74. Eccentric wheel; 75. Sliding tooth plate; 76. Gear; 77. Telescopic spring rod 2. Detailed implementation mode

[0024] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0025] Please refer to Figures 1 - 7 , an embodiment of the present invention is: An exhaust gas centralized treatment device and method in the production of coconut shell activated carbon, including a base 1, a carbonization machine 2 is fixedly installed on the top of the base 1, a heat exchanger 3 is fixedly installed on the top of the base 1, an air transmission pipe 41 is fixedly penetrated through the bottom of the heat exchanger 3, a treatment cylinder 42 is fixedly installed on the top of the base 1, a cyclone separator 43 is fixedly installed on the top of the treatment cylinder 42, an intake pipe 44 is fixedly penetrated through the bottom of the cyclone separator 43, a water storage ring 45 is fixedly installed on the circumferential surface of the treatment cylinder 42, and a purification device for pre-separating the exhaust gas before purification is arranged on the circumferential surface of the treatment cylinder 42. The purification device includes a motor 1 51, the motor 1 51 is fixedly installed on the circumferential surface of the treatment cylinder 42, a rotating shaft 52 is rotatably penetrated through the top of the treatment cylinder 42, a molecular sieve 53 is rotatably installed on the inner wall of the treatment cylinder 42, a motor 2 54 is fixedly installed on the surface of the treatment cylinder 42, a filter plate 55 is fixedly installed on the inner wall of the treatment cylinder 42, a scraper 56 is fixedly installed on the circumferential surface of the rotating shaft 52, a protrusion 57 is fixedly installed on the inner wall of the treatment cylinder 42, a sieve plate 58 is fixedly installed on the circumferential surface of the rotating shaft 52, a stirring plate 59 is fixedly installed at the bottom of the sieve plate 58, the rotation of the first transmission belt drives the rotation of the rotating shaft 52, the rotation of the rotating shaft 52 drives the rotation of the sieve plate 58, and at the same time, the rotation of the sieve plate 58 drives the rotation of the stirring plate 59 to fully stir the accumulated lime water inside the treatment cylinder 42.

[0026] One end of the rotating shaft 52 far from the first motor 51 is fixedly installed with a centrifugal cylinder 510. A collecting cylinder 511 is sleeved on the circumferential surface of the centrifugal cylinder 510. A fixing plate 512 is fixedly installed on the circumferential surface of the rotating shaft 52. A rotating wheel 513 is fixedly installed on the circumferential surface of the fixing plate 512. A spiral plate 514 is fixedly installed on the circumferential surface of the fixing plate 512 far from the rotating wheel 513. A circulation pipe 515 is fixedly penetrated through the bottom of the collecting cylinder 511. The carbonization machine 2 is communicated with the heat exchanger 3. One end of the air delivery pipe 41 far from the heat exchanger 3 is fixedly penetrated through the surface of the cyclone separator 43. A first transmission belt is rotationally connected between the first motor 51 and the rotating shaft 52. A reciprocating thread groove is formed on the circumferential surface of the rotating shaft 52. Filter holes for centrifugal sieving are formed on the surface of the centrifugal cylinder 510. One end of the circulation pipe 515 far from the collecting cylinder 511 is fixedly penetrated through the water storage ring 45. When the water storage ring 45 is started, the water storage ring 45 pumps the lime water into the inside of the spray pipe 46. The spray pipe 46 sprays the lime water through the spray head to spray the tail gas inside the treatment cylinder 42.

[0027] A second transmission belt is transmissionally connected between the molecular sieve 53 and the second motor 54. An arc surface one for contact collision and vibration generation is arranged on the surface of one end of the scraping plate 56 far from the rotating shaft 52. An arc surface two for auxiliary contact collision is arranged on the surface of the convex block 57. The treatment cylinder 42 is fixedly penetrated through the surface of the stirring plate 59. The filter plate 55 is slidably connected with the scraping plate 56. The fixing plate 512 is fixedly connected with the inner wall of the centrifugal cylinder 510. The rotating wheel 513 is in contact with the surface of the air delivery pipe 41. The spray pipe 46 is fixedly penetrated through the water storage ring 45. The spray pipe 46 sprays the lime water through the spray head to spray the tail gas inside the treatment cylinder 42. The tail gas reacts when contacting the lime water.

[0028] An exhaust gas centralized treatment device in coconut shell activated carbon production, using an exhaust gas centralized treatment device in coconut shell activated carbon production, includes: Step 1: The exhaust gas is discharged into the inside of the heat exchanger 3 through the carbonization machine 2. The heat exchanger 3 cools down the exhaust gas. Subsequently, the cooled exhaust gas is discharged into the inside of the cyclone separator 43 through the air delivery pipe 41. At this time, the cyclone separator 43 is started, and the cyclone separator 43 separates the large particle impurities in the exhaust gas; Step 2: The treated exhaust gas is then discharged into the inside of the treatment cylinder 42 through the air inlet pipe 44. Subsequently, the water storage ring 45 is started. The water storage ring 45 pumps the lime water into the inside of the spray pipe 46. The spray pipe 46 sprays the lime water through the spray head to spray the tail gas inside the treatment cylinder 42. The tail gas reacts when contacting the lime water; Step 3: Start the first motor 51. The output end of the first motor 51 rotates to drive the first transmission belt to rotate. The first transmission belt rotates to drive the rotating shaft 52 to rotate. The rotating shaft 52 rotates to drive the sieve plate 58 to rotate. At the same time, the sieve plate 58 rotates to drive the stirring plate 59 to rotate to fully stir the accumulated lime water inside the treatment cylinder 42; Step 4: The rotation of the rotating shaft 52 drives the rotation of the fixed plate 512, the rotation of the fixed plate 512 drives the rotation of the centrifugal cylinder 510, and the rotation of the centrifugal cylinder 510 separates the reactants and water accumulated inside the centrifugal cylinder 510 by centrifugal force and flings out the water. The lime water separated by the centrifugal cylinder 510 enters the interior of the collection cylinder 511, and then the lime water is pumped into the water storage ring 45 through the circulation pipe 515 to achieve the recycling of the lime water; Step 5: When the tail gas after reaction desulfurization floats upward, the second motor 54 is started at this time. The output end of the second motor 54 rotates to drive the rotation of the second transmission belt, and the rotation of the second transmission belt drives the rotation of the molecular sieve 53. The rotation of the molecular sieve 53 improves the purification and adsorption effect on the tail gas. Then, the purified tail gas is discharged from the top of the treatment cylinder 42; Step 6: The rotating shaft 52 rotates under the action of the first motor 51. The rotation of the rotating shaft 52 drives the rotation of the scraper 56. The rotation of the scraper 56 scrapes off the tail gas particles and tar adhering or sticking to the surface of the filter plate 55. When the scraper 56 rotates and contacts and collides with the surface of the bump 57, it vibrates at this time. At this time, the scraper 56 vibrates under the action of the bump 57, and the scraper 56 improves the cleaning effect on the surface of the filter plate 55; Step 7: The rotating shaft 52 rotates under the action of the first motor 51 to drive the rotation of the fixed plate 512. The rotation of the fixed plate 512 drives the runner 513 to rotate around the rotating shaft 52 as the center. At the same time, because the runner 513 contacts the surface of the treatment cylinder 42, the runner 513 rotates and rotates on its own under the action of the treatment cylinder 42. At this time, the rotation of the runner 513 drives the rotation of the spiral plate 514. The rotation of the spiral plate 514 stirs and flips the reactants accumulated inside the centrifugal cylinder 510, improving the separation effect of the centrifugal cylinder 510 on the reactants.

[0029] During the operation of this embodiment: The tail gas is discharged into the interior of the heat exchanger 3 through the carbonization machine 2. The heat exchanger 3 cools down the tail gas to avoid damage to downstream pipelines caused by high temperature, and the cooled tail gas is more easily absorbed or reacted by subsequent purification processes. At the same time, it avoids leakage caused by thermal expansion and contraction of pipelines due to high temperature. Subsequently, the tail gas after cooling treatment is discharged into the interior of the cyclone separator 43 through the gas transmission pipe 41. At this time, the cyclone separator 43 is started, and the cyclone separator 43 separates large particle impurities in the tail gas to prevent blockage and wear of equipment, extend the service life, reduce the load on equipment components, improve the overall purification efficiency, facilitate subsequent treatment, and avoid large particle impurities wrapping reactants and affecting the solid-liquid separation efficiency. The treated tail gas is then discharged into the interior of the treatment cylinder 42 through the air inlet pipe 44. Subsequently, the water storage ring 45 is started, and the water storage ring 45 pumps lime water into the interior of the spray pipe 46. The spray pipe 46 sprays the lime water through the nozzles to spray the tail gas inside the treatment cylinder 42. The tail gas reacts with the lime water. At the same time, the first motor 51 is started, and the output end of the first motor 51 rotates to drive the first transmission belt to rotate. The first transmission belt rotates to drive the rotating shaft 52 to rotate. The rotating shaft 52 rotates to drive the sieve plate 58 to rotate. At the same time, the sieve plate 58 rotates to drive the stirring plate 59 to rotate to fully stir the lime water accumulated inside the treatment cylinder 42, improving the reaction rate and contact area between the lime water and the tail gas, thereby improving the reaction effect, and at the same time enhancing the desulfurization reaction rate and thoroughness. At the same time, the rotating shaft 52 rotates to drive the fixed plate 512 to rotate. The fixed plate 512 rotates to drive the centrifugal cylinder 510 to rotate. The centrifugal cylinder 510 rotates to throw out the water in the reactants accumulated inside the centrifugal cylinder 510 through centrifugal force, realizing the separation of water from the reactants and the centralized collection of the reactants. At the same time, the lime water separated by the centrifugal cylinder 510 enters the interior of the collection cylinder 511. Subsequently, the lime water is pumped into the water storage ring 45 through the circulation pipe 515, realizing the recycling of lime water, reducing chemical agent waste, lowering the operation cost, at the same time realizing the regeneration of the chemical agent after solid-liquid separation, forming a closed environmental protection loop, and at the same time enhancing the resource recycling efficiency and reducing wastewater discharge. When the tail gas after reaction desulfurization floats upward, at this time, the second motor 54 is started, and the output end of the second motor 54 rotates to drive the second transmission belt to rotate. The second transmission belt rotates to drive the molecular sieve 53 to rotate. The rotation of the molecular sieve 53 improves the purification and adsorption effect on the tail gas. Subsequently, the purified tail gas is discharged from the top of the treatment cylinder 42.

[0030] When the rotating shaft 52 rotates under the action of the first motor 51, the rotating shaft 52 drives the scraper 56 to rotate. The rotation of the scraper 56 scrapes off the tail gas particles and tar adhering or sticking to the surface of the filter plate 55, avoiding the accumulation of impurities and clogging of the filter holes, maintaining the permeability of the filter plate 55, keeping it in a good working state all the time, preventing the formation of a hard scale layer after the impurities solidify, reducing the cleaning difficulty of the filter plate 55, extending the service life of the filter plate 55, reducing the frequency of shutdown cleaning caused by the clogging of the filter plate 55, ensuring the continuity of the separation process. At the same time, when the scraper 56 rotates and contacts and collides with the surface of the bump 57, vibration occurs at this time. At this time, the scraper 56 vibrates under the action of the bump 57, improving the cleaning effect on the surface of the filter plate 55. At the same time, it avoids the scraper 56 sticking to tar during the cleaning of the filter plate 55, which affects its working efficiency. At the same time, it enhances the ability to peel off stubborn impurities in the gaps of the filter plate 55, and at the same time avoids problems such as an increase in scraping resistance and movement jamming of the scraper 56 due to sticking to tar, ensuring that the scraper 56 always maintains an efficient cleaning state and maintaining a long-term stable scraping efficiency.

[0031] When the rotating shaft 52 rotates under the action of the first motor 51, it drives the fixed plate 512 to rotate. The rotation of the fixed plate 512 drives the runner 513 to rotate around the rotating shaft 52 as the center. At the same time, because the runner 513 contacts the surface of the processing cylinder 42, the runner 513 rotates and rotates around its own axis under the action of the processing cylinder 42. At this time, the rotation of the runner 513 drives the spiral plate 514 to rotate. The rotation of the spiral plate 514 stirs and flips the reactants accumulated inside the centrifugal cylinder 510, improving the separation effect of the centrifugal cylinder 510 on the reactants. At the same time, it effectively reduces the phenomenon of material agglomeration, avoids uneven transmission of centrifugal force caused by local excessive accumulation, and improves the thoroughness of the separation of the solid-liquid two phases.

[0032] Please refer to Figures 1 - 7 , on the basis of the above embodiments, in another embodiment of the present invention, a cleaning device for cleaning the equipment and avoiding operation failures caused by tar adhesion is provided on the circumferential surface of the rotating shaft 52. The cleaning device includes a rotating cylinder 61. The rotating cylinder 61 is slidably installed on the circumferential surface of the rotating shaft 52. A support plate 62 is fixedly installed on the circumferential surface of the rotating cylinder 61. A first rotating rod 63 is rotatably penetrated through the surface of the support plate 62. An activated carbon plate 64 is fixedly installed on the circumferential surface of the first rotating rod 63. A cleaning cylinder 65 is fixedly installed at one end of the support plate 62 away from the rotating cylinder 61. A brush plate 66 is slidably installed on the surface of the stirring plate 59. A connecting disk 67 is fixedly installed at the top of the brush plate 66. When the cleaning cylinder 65 moves downward, it contacts and presses the connecting disk 67 to move downward. At the same time, the movement of the connecting disk 67 drives the brush plate 66 to move downward. A first telescopic elastic rod 68 is fixedly installed on the surface of the sieve plate 58.

[0033] The rotary drum 61 is threadedly connected to the rotating shaft 52. The circumferential surface of the cleaning cylinder 65 is provided with bristles for cleaning the inner wall of the treatment cylinder 42. The rotation of the cleaning cylinder 65 drives the bristles to rotate, and the bristles rotate under the action of the cleaning cylinder 65 to clean the impurities, reactants or tar attached or adhered to the inner wall of the treatment cylinder 42.

[0034] The free end of the telescopic spring rod one 68 is fixedly connected to the connecting disk 67. The connecting disk 67 slidably penetrates the surface of the sieve plate 58. The bottom of the cleaning cylinder 65 is provided with leakage holes for pressing and filtering tar. The movement of the rotary drum 61 drives the cleaning cylinder 65 to move downward, and the downward movement of the cleaning cylinder 65 contacts and presses the connecting disk 67 to move downward.

[0035] A pressing and filtering device for pressing and filtering tar is arranged on the surface of the support plate 62. The pressing and filtering device includes a second rotating rod 71. The second rotating rod 71 rotatably penetrates the surface of the support plate 62. A pressing and filtering roller 72 is fixedly installed on the circumferential surface of the second rotating rod 71. A roller 73 is fixedly installed on the circumferential surface of the second rotating rod 71. An eccentric wheel 74 is fixedly installed on the circumferential surface of the second rotating rod 71. A sliding tooth plate 75 is slidably installed on the surface of the support plate 62. A gear 76 is fixedly installed on the circumferential surface of the first rotating rod 63. Since the sliding tooth plate 75 meshes with the gear 76, and at the same time the sliding tooth plate 75 moves upward to contact and engage with the gear 76 and drives the gear 76 to rotate, the rotation of the gear 76 drives the first rotating rod 63 to rotate. A telescopic spring rod two 77 is fixedly installed on the surface of the sliding tooth plate 75.

[0036] The free end of the telescopic spring rod two 77 is fixedly connected to the support plate 62. The sliding tooth plate 75 meshes with the gear 76. One end of the sliding tooth plate 75 close to the eccentric wheel 74 is provided with an arc surface three for assisting the upward movement and force. The roller 73 contacts the cleaning cylinder 65. The roller 73 rotates and rotates by itself under the action of the cleaning cylinder 65. At this time, the rotation of the roller 73 drives the second rotating rod 71 to rotate.

[0037] When this embodiment works: the rotating shaft 52 rotates under the action of the first motor 51 to drive the rotary drum 61 to rotate. The rotation of the rotary drum 61 drives the support plate 62 to rotate. The rotation of the support plate 62 drives the first rotating rod 63 to rotate. At the same time, the rotation of the first rotating rod 63 drives the activated carbon plate 64 to rotate around the rotating shaft 52. At the same time, the activated carbon plate 64 rotates around the rotating shaft 52 and rotates under the action of the tail gas and spraying, improving the adsorption effect on the particles in the tail gas. At the same time, the rotation of the support plate 62 drives the cleaning cylinder 65 to rotate. The rotation of the cleaning cylinder 65 drives the bristles to rotate. The bristles rotate under the action of the cleaning cylinder 65 to clean the impurities, reactants or tar attached or adhered to the inner wall of the treatment cylinder 42, avoiding the accumulation of viscous substances and affecting the mass transfer efficiency; preventing the tar from solidifying to form hard scale, reducing the frequency of manual cleaning, maintaining the long-term stable operation of the equipment, and at the same time reducing the abnormal load of the transmission components caused by adhesion.

[0038] Since the rotary drum 61 and the rotating shaft 52 are connected by threads, the rotation of the rotating shaft 52 drives the rotary drum 61 to move downward. The movement of the rotary drum 61 drives the cleaning drum 65 to move downward. The downward movement of the cleaning drum 65 contacts and presses the connecting plate 67 to move downward. At the same time, the movement of the connecting plate 67 drives the brush plate 66 to move downward. At this time, the downward movement of the brush plate 66 cleans the surface of the stirring plate 59, avoiding a large amount of tar adhering to the surface of the stirring plate 59 during long-term operation, which affects its operation efficiency and effect. At the same time, the tar impurities on the surface of the stirring plate 59 are cleaned, improving the service life of the stirring plate 59.

[0039] When the support plate 62 rotates around the rotating shaft 52 under the action of the rotary drum 61, it drives the second rotating rod 71 to rotate. The rotation of the second rotating rod 71 drives the roller 73 to rotate around the rotating shaft 52. Since the roller 73 contacts the cleaning drum 65, the rotation of the roller 73 causes it to rotate on its own under the action of the cleaning drum 65. At this time, the rotation of the roller 73 drives the second rotating rod 71 to rotate. At the same time, the rotation of the second rotating rod 71 drives the filter press roller 72 to rotate. The rotation of the filter press roller 72 presses and filters the tar scraped off the surface of the filter plate 55 or accumulated inside the cleaning drum 65, filtering the tar through the leakage holes opened on the surface of the cleaning drum 65. Subsequently, the filtered tar enters the interior of the centrifugal cylinder 510 and is then centrally processed by the staff, avoiding tar adhering to the equipment components. At the same time, the collected tar residue can be used as fuel, realizing the conversion of pollutants into resources, further improving the environmental protection of the equipment, and the tar after pressure filtration is not likely to volatilize harmful gases.

[0040] When the second rotating rod 71 rotates under the action of the roller 73, it drives the eccentric wheel 74 to rotate. The rotation of the eccentric wheel 74 contacts and presses the sliding tooth plate 75 to move upward. Since the sliding tooth plate 75 meshes with the gear 76, and at the same time the sliding tooth plate 75 moves upward to contact and engage with the gear 76 and drives the gear 76 to rotate. The rotation of the gear 76 drives the first rotating rod 63 to rotate. At the same time, the rotation of the first rotating rod 63 drives the activated carbon plate 64 to rotate. At this time, the activated carbon plate 64 rotates stably under the action of the gear 76, further improving the purification and adsorption effect of the activated carbon plate 64 on the tail gas, and covering a larger space range, significantly increasing the adsorption amount of pollutants within the same residence time.

[0041] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A centralized tail gas treatment device for coconut shell activated carbon production, comprising a base (1), characterized in that: A carbonizer (2) is fixedly mounted on the top of the base (1), a heat exchanger (3) is fixedly mounted on the top of the base (1), a gas delivery pipe (41) is fixedly penetrated through the bottom of the heat exchanger (3), a treatment cylinder (42) is fixedly mounted on the top of the base (1), a cyclone separator (43) is fixedly mounted on the top of the treatment cylinder (42), an air intake pipe (44) is fixedly penetrated through the bottom of the cyclone separator (43), a water storage ring (45) is fixedly mounted on the circumferential surface of the treatment cylinder (42), and a purification device for pre-separating and purifying tail gas is provided on the circumferential surface of the treatment cylinder (42), the purification device comprising a motor (5 1), the motor 1 (51) is fixedly mounted on the circumferential surface of the treatment cylinder (42), a rotating shaft (52) is rotatably penetrated through the top of the treatment cylinder (42), a molecular sieve (53) is rotatably mounted on the inner wall of the treatment cylinder (42), a motor 2 (54) is fixedly mounted on the surface of the treatment cylinder (42), a filter plate (55) is fixedly mounted on the inner wall of the treatment cylinder (42), a scraper (56) is fixedly mounted on the circumferential surface of the rotating shaft (52), a protrusion (57) is fixedly mounted on the inner wall of the treatment cylinder (42), a sieve plate (58) is fixedly mounted on the circumferential surface of the rotating shaft (52), and a stirring plate (59) is fixedly mounted on the bottom of the sieve plate (58).

2. The device for centralized treatment of tail gas in the production of coconut shell activated carbon according to claim 1, characterized in that: A centrifugal cylinder (510) is fixedly mounted on one end of the rotating shaft (52) away from the motor (51); a collecting cylinder (511) is sleeved on the circumferential surface of the centrifugal cylinder (510); a fixing plate (512) is fixedly mounted on the circumferential surface of the rotating shaft (52); a rotating wheel (513) is fixedly mounted on the circumferential surface of the fixing plate (512); a spiral plate (514) is fixedly mounted on the circumferential surface of the fixing plate (512) away from the rotating wheel (513); a circulating pipe (514) is fixedly penetrated through the bottom of the collecting cylinder (511); 515), the carbonizing machine (2) is connected to the heat exchanger (3), one end of the gas delivery pipe (41) away from the heat exchanger (3) is fixedly penetrated through the surface of the cyclone separator (43), a transmission belt (1) is rotatably connected between the motor (51) and the rotating shaft (52), a reciprocating thread groove is provided on the circumferential surface of the rotating shaft (52), a filter hole for centrifugal screening is provided on the surface of the centrifugal cylinder (510), and one end of the circulation pipe (515) away from the collecting cylinder (511) is fixedly penetrated through the water storage ring (45).

3. The device for centralized tail gas treatment in coconut shell activated carbon production according to claim 2, characterized in that: A transmission belt 2 is provided between the molecular sieve (53) and the second motor (54) for transmission connection; a first arc surface for contact, collision and vibration generation is provided on the surface of the scraper (56) at one end away from the rotating shaft (52); a second arc surface for assisting contact, collision and vibration is provided on the surface of the protrusion (57); the treatment cylinder (42) is fixedly connected to the surface of the stirring plate (59); the filter plate (55) is slidably connected to the scraper (56); the fixing plate (512) is fixedly connected to the inner wall of the centrifugal cylinder (510); the impeller (513) is in contact with the surface of the gas transmission pipe (41); and the spray pipe (46) is fixedly connected to the water storage ring (45).

4. The device for centralized tail gas treatment in coconut shell activated carbon production according to claim 3, characterized in that: The circumferential surface of the rotating shaft (52) is provided with a cleaning device for cleaning the equipment to avoid tar adhesion causing operating failures, the cleaning device comprising a rotating drum (61), the rotating drum (61) being slidably mounted on the circumferential surface of the rotating shaft (52), a supporting plate (62) being fixedly mounted on the circumferential surface of the rotating drum (61), a rotating rod (63) rotatably penetrating the surface of the supporting plate (62), an activated carbon plate (64) being fixedly mounted on the circumferential surface of the rotating rod (63), a cleaning drum (65) being fixedly mounted on one end of the supporting plate (62) away from the rotating drum (61), a brush plate (66) being slidably mounted on the surface of the stirring plate (59), a connecting plate (67) being fixedly mounted on the top of the brush plate (66), and a telescopic elastic rod (68) being fixedly mounted on the surface of the sieve plate (58).

5. The device for centralized treatment of tail gas in the production of coconut shell activated carbon according to claim 4, characterized in that: The rotating cylinder (61) is connected to the rotating shaft (52) via a threaded connection, and the circumferential surface of the cleaning cylinder (65) is provided with bristles for cleaning the inner wall of the processing cylinder (42).

6. The device for centralized treatment of tail gas in the production of coconut shell activated carbon according to claim 5, characterized in that: The free end of the telescopic spring rod (68) is fixedly connected to the connecting plate (67), and the connecting plate (67) slides through the surface of the sieve plate (58). The bottom of the cleaning cylinder (65) is provided with a leakage hole for filtering tar.

7. The device for centralized treatment of tail gas in the production of coconut shell activated carbon according to claim 6, characterized in that: The surface of the support plate (62) is provided with a filter press device for filtering tar, and the filter press device comprises a second rotating rod (71), the second rotating rod (71) rotates and penetrates the surface of the support plate (62), a filter press roller (72) is fixedly mounted on the circumferential surface of the second rotating rod (71), a roller (73) is fixedly mounted on the circumferential surface of the second rotating rod (71), an eccentric wheel (74) is fixedly mounted on the circumferential surface of the second rotating rod (71), a sliding tooth plate (75) is slidably mounted on the surface of the support plate (62), a gear (76) is fixedly mounted on the circumferential surface of the first rotating rod (63), and a second telescopic elastic rod (77) is fixedly mounted on the surface of the sliding tooth plate (75).

8. The device for centralized treatment of tail gas in the production of coconut shell activated carbon according to claim 7, characterized in that: The free end of the second telescopic elastic rod (77) is fixedly connected to the support plate (62), the sliding tooth plate (75) is meshed with the gear (76), and an arc surface (3) for assisting upward movement of the force-bearing sliding tooth plate (75) is provided at one end of the sliding tooth plate (75) close to the eccentric wheel (74), and the roller (73) is in contact with the cleaning cylinder (65).

9. A centralized tail gas treatment device for coconut shell activated carbon production, according to claim 8, characterized in that: include: Step 1: The tail gas is discharged into the heat exchanger (3) through the carbonization machine (2), and the heat exchanger (3) cools the tail gas. The cooled tail gas is then discharged into the cyclone separator (43) through the gas pipe (41), and the cyclone separator (43) is started to separate the large particles of impurities in the tail gas; Step 2: The treated exhaust gas is discharged into the interior of the treatment tube (42) through the air inlet pipe (44), and then the water storage ring (45) is started, and the water storage ring (45) pumps lime water into the interior of the spray pipe (46), and the spray pipe (46) sprays the lime water through the nozzle to spray the exhaust gas in the treatment tube (42), and the exhaust gas and the lime water come into contact and react; Step 3: starting the motor 1 (51), the output end of the motor 1 (51) rotates to drive the transmission belt 1 to rotate, the rotation of the transmission belt 1 drives the rotating shaft (52) to rotate, the rotation of the rotating shaft (52) drives the sieve plate (58) to rotate, and at the same time, the rotation of the sieve plate (58) drives the stirring plate (59) to rotate to fully stir the lime water accumulated inside the treatment cylinder (42); Step 4: The rotating shaft (52) rotates to drive the fixed plate (512) to rotate, and the fixed plate (512) rotates to drive the centrifugal cylinder (510) to rotate. The centrifugal cylinder (510) rotates to throw out the reactants and water accumulated inside the centrifugal cylinder (510) through centrifugal force, and the lime water separated by the centrifugal cylinder (510) enters the inside of the collecting cylinder (511), and then the lime water is pumped into the water storage ring (45) through the circulation pipe (515), thereby realizing the recycling of the lime water; Step 5: When the tail gas after the reaction and desulfurization floats upward, the second motor (54) is started, and the output end of the second motor (54) rotates to drive the second transmission belt to rotate, and the rotation of the second transmission belt drives the molecular sieve (53) to rotate. The rotation of the molecular sieve (53) improves the purification and adsorption effect of the tail gas, and then the purified tail gas is discharged through the top of the treatment cylinder (42); Step 6: The rotating shaft (52) rotates under the action of the motor 1 (51), and the rotation of the rotating shaft (52) drives the scraper (56) to rotate. The scraper (56) rotates to scrape off the exhaust particles and tar attached to or stuck to the surface of the filter plate (55). The scraper (56) rotates to contact and collide with the surface of the protrusion (57), and the scraper (56) vibrates at this time. At this time, the scraper (56) vibrates under the action of the protrusion (57), and the scraper (56) improves the cleaning effect on the surface of the filter plate (55); Step seven: The rotating shaft (52) rotates under the action of the motor 1 (51) to drive the fixed plate (512) to rotate. The fixed plate (512) rotates to drive the rotating wheel (513) to rotate with the rotating shaft (52) as the center. At the same time, because the rotating wheel (513) is in contact with the surface of the processing cylinder (42), the rotating wheel (513) rotates under the action of the processing cylinder (42). At this time, the rotating wheel (513) rotates to drive the spiral plate (514) to rotate. The rotation of the spiral plate (514) turns and stirs the reactants accumulated inside the centrifugal cylinder (510), thereby improving the separation effect of the centrifugal cylinder (510) on the reactants.

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