An apparatus for absorbing off-gas in ethylamine processing

Abstract

The application discloses a tail gas absorption device for ethylamine processing and relates to the technical field of tail gas absorption devices.The tail gas absorption device for ethylamine processing comprises a purification frame, a servo motor is fixedly installed at the bottom of the inner wall of the purification frame, a transmission shaft is fixedly installed at the output end of the servo motor, an air inlet pipe is fixedly penetrated through the inner wall of the purification frame, an air outlet pipe is fixedly penetrated through the top of the purification frame, and the tail gas absorption device further comprises an absorption device which comprises a filter plate, an absorption frame, an absorption pipe, a discharge pipe, a receiving disc, a protruding block one and a protruding block two.The tail gas absorption device for ethylamine processing removes large-particle waste under the action of the filter plate, absorbs harmful substances in the tail gas in the absorption frame, effectively reduces the blockage of the filter plate through vibration, and effectively avoids the caking of activated carbon caused by humid water vapor while improving the contact area of the activated carbon and the tail gas through the stirring rod.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of tail gas absorption devices, in particular to a tail gas absorption device for ethylamine processing. BACKGROUND

[0002] Tail gas generated during ethylamine processing often contains harmful gases and volatile substances, so it needs to be treated by a tail gas absorption device to reduce environmental pollution and recover useful substances. Ethylamine is a chemical widely used in gas treatment, pharmaceuticals, fertilizers and chemical synthesis. In the production process of ethylamine, tail gas components such as ammonia, carbon dioxide, water vapor and other organic volatile compounds may be produced.

[0003] The patent with patent number CN211274200U relates to a triethylamine cold box core making tail gas treatment device, which comprises a fan, the distal end of the fan is provided with a heating circulating machine, and the side of the heating circulating machine is provided with a first adsorption tower connected through a pipeline. The side of the first adsorption tower is connected with a second adsorption tower through a pipeline. Through the above technical scheme, the problem that the existing technology cannot simultaneously treat triethylamine gas tail gas and recover triethylamine is solved. The patent adopts "activated carbon adsorption + desorption + condensation recovery", uses adsorption method to remove triethylamine in triethylamine cold box core making tail gas, solves the problem of treatment of cold box core making tail gas containing triethylamine, then desorbs the activated carbon after adsorbing triethylamine, and condenses the desorbed triethylamine gas by condensation method, so as to realize the recovery of triethylamine.

[0004] In the above patent, the problem of treatment of cold box core making tail gas containing triethylamine is solved, then the activated carbon after adsorbing triethylamine is desorbed, and the desorbed triethylamine gas is condensed by condensation method, so as to realize the recovery of triethylamine. However, during the treatment of tail gas, large particle residues in the tail gas will gradually accumulate and cause blockage, thereby reducing the subsequent overall treatment effect. Therefore, a tail gas absorption device for ethylamine processing with better absorption effect is designed. SUMMARY

[0005] In view of the deficiencies of the prior art, the present application provides a tail gas absorption device for ethylamine processing, which solves the problems raised in the background art.

[0006] In order to achieve the above object, the present application is realized by the following technical scheme: A tail gas absorption device for ethylamine processing, comprising a purification frame, a servo motor is fixedly installed at the inner wall bottom of the purification frame, a transmission shaft is fixedly installed at the output end of the servo motor, an air inlet pipe is fixedly penetrated through the inner wall of the purification frame, an exhaust pipe is fixedly penetrated through the top of the purification frame, and the device further comprises an absorption device, which comprises a filter plate, an absorption frame, an absorption pipe, a discharge pipe, a receiving disc, a protruding block one and a protruding block two, the tail gas is introduced into the inside of the purification frame through the air inlet pipe, then the servo motor is started, and the tail gas is filtered to remove larger particulate matters under the action of the filter plate after entering the inside of the purification frame, the filter plate is slidingly installed at the inner wall of the purification frame, the absorption frame is fixedly installed at the inner wall of the purification frame, the absorption pipe is fixedly penetrated through the lower inner and outer walls of the absorption frame, the discharge pipe is fixedly penetrated through the top of the absorption frame, the receiving disc is fixedly installed at the circumferential surface of the transmission shaft, the protruding block one is fixedly installed below the receiving disc, the protruding block two is fixedly installed above the filter plate, and the inside of the absorption frame stores absorption liquid, the transmission shaft rotates to drive the receiving disc to rotate, the receiving disc rotates to drive the protruding block one to rotate, and the protruding block one rotates to contact and press the protruding block two and generate vibration.

[0007] According to the above technical scheme, one side of the protruding block one close to the protruding block two is provided as an arc surface one, one side of the protruding block two close to the protruding block one is provided as an arc surface two, and a spring one is arranged between the absorption frame and the filter plate, which can drive the filter plate to reset.

[0008] According to the above technical scheme, an adsorption frame is fixedly installed at the inside of the purification frame, and a stirring rod is fixedly installed at the circumferential surface of the transmission shaft, and the inside of the adsorption frame stores activated carbon, and the stirring rod can effectively stir the activated carbon.

[0009] According to the above technical scheme, a regeneration device for improving the absorption effect of the tail gas is arranged on the surface of the absorption frame, the regeneration device comprises a water inlet pipe and a water outlet pipe, the water inlet pipe is fixedly penetrated through the inner and outer walls of the purification frame, the water outlet pipe is fixedly penetrated through the inner and outer walls of the purification frame, the regeneration device further comprises a baffle, a drainage pipe, a limiting plate, a connecting rod, a partition plate and a receiving rod, the filter plate moves upward to drive the receiving rod to move upward, the receiving rod moves upward to drive the limiting plate to move upward, the baffle is slidingly installed at the inner wall of the absorption frame, the drainage pipe is fixedly installed at one side of the baffle close to the water outlet pipe, the limiting plate is slidingly penetrated through the top of the absorption frame, the connecting rod is rotatably installed below the limiting plate, the partition plate is slidingly installed at the inner wall of the absorption frame, the receiving rod is fixedly installed above the filter plate, and the receiving rod is slidingly penetrated through the upper and lower walls of the absorption frame, the absorption liquid reenters the inside of the absorption frame through the water inlet pipe, and the regeneration of the absorption liquid in the inside of the absorption frame is realized.

[0010] According to the technical scheme, one end of the connecting rod away from the limiting plate is rotationally connected to the lower part of the baffle, the surface of the drainage pipe is provided with a drainage groove, the circumferential surface of the drainage pipe is slidably connected to the inner wall of the water outlet pipe, the surface of the partition plate is provided with a water outlet, and the upward movement of the partition plate drives the upward movement of the water outlet and the coincidence with the water inlet pipe.

[0011] According to the technical scheme, the limiting plate is provided with two limiting plates, the two limiting plates are symmetrically distributed with the center of the absorption frame, the upper part of the supporting rod is fixedly connected to the limiting plate, the upward movement of the right limiting plate drives the upward movement of the partition plate, and the upward movement of the partition plate drives the upward movement of the water outlet and the coincidence with the water inlet pipe.

[0012] According to the technical scheme, the bottom of the absorption frame is provided with a limiting device for limiting the entering tail gas, the limiting device comprises a limiting plate, the limiting plate is slidably installed below the absorption frame, the surface of the limiting plate is provided with a through hole, the limiting device further comprises a pushing rod, an L-shaped plate, a fixed frame, a pressing plate and a supporting plate, the upward movement of the supporting rod drives the upward movement of the L-shaped plate, the upward movement of the L-shaped plate contacts and extrudes the pushing rod to move away from the supporting rod, the pushing rod is fixedly installed on the side surface of the limiting plate, the L-shaped plate is fixedly installed on the circumferential surface of the supporting rod, the fixed frame is fixedly installed below the absorption frame, the pressing plate is slidably installed below the fixed frame, and the supporting plate is fixedly installed on the surface of the limiting plate.

[0013] According to the technical scheme, the L-shaped plate slidably penetrates the bottom of the absorption frame, the surface of the supporting plate is provided with a stabilizing groove, the lower part of the pressing plate is provided as an arc surface, the side of the pushing rod away from the limiting plate is provided as an inclined surface, a second spring is arranged between the inner wall of the fixed frame and the pressing plate, the pressing plate moves downward under the action of the second spring, and the pressing plate moves downward into the inside of the stabilizing groove on the surface of the supporting plate.

[0014] The application provides a tail gas absorption device for ethylamine processing.

[0015] (1) The tail gas absorption device for ethylamine processing, through the cooperation between the transmission shaft, the air inlet pipe, the exhaust pipe, the filter plate, the absorption frame, the absorption pipe, the discharge pipe, the supporting disc, the protrusion one and the protrusion two, the harmful substances in the tail gas are absorbed in the absorption frame after the large-particle waste is removed under the action of the filter plate, the blockage of the filter plate is effectively reduced through vibration, and then the harmful substances are further removed under the action of the stirring rod and the adsorption frame, the contact area of the activated carbon and the tail gas is improved, the caking of the activated carbon caused by humid water vapor can be effectively avoided, and the treatment effect of the tail gas discharged to the outside is further improved.

[0016] (2) The tail gas absorption device for ethylamine processing, through the cooperation between the water inlet pipe, the water outlet pipe, the baffle, the drainage pipe, the limiting plate, the connecting rod, the partition plate and the receiving rod, the saturated absorption liquid in the absorption frame is regenerated under the action of the water inlet pipe and the water outlet pipe, so that the absorption liquid in the absorption frame is not too saturated due to long-time absorption, thereby reducing the absorption effect of the subsequent tail gas, effectively reducing the subsequent maintenance cost and improving the processing efficiency of the tail gas.

[0017] (3) The tail gas absorption device for ethylamine processing, through the cooperation between the limiting plate, the push rod, the L-shaped plate, the fixed frame, the pressing plate, the receiving plate and the second spring, the movement of the limiting plate causes the through holes on the surface of the limiting plate to be misaligned with the absorption pipe, thereby realizing the closure of the absorption pipe and preventing the tail gas from entering the inside of the absorption frame through the absorption pipe, which can effectively avoid the situation that the over-saturated absorption liquid cannot effectively absorb the harmful substances in the tail gas when the absorption liquid is regenerated, thereby causing the incompletely absorbed tail gas to be directly discharged and polluting the environment, reducing the possibility of direct discharge of the tail gas, and effectively avoiding the situation that the through holes on the surface of the limiting plate are not completely coincided with the absorption pipe due to incomplete resetting, thereby reducing the absorption efficiency of the tail gas, maintaining the stability of the equipment during operation, and reducing the subsequent maintenance cost. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present application;

[0019] Figure 2 It is a schematic diagram of the internal structure of the purification frame of the present application;

[0020] Figure 3 It is a schematic diagram of the position structure of the adsorption frame and the absorption pipe of the present application;

[0021] Figure 4 It is a schematic diagram of the position structure of the filter plate and the limiting plate of the present application;

[0022] Figure 5 It is a schematic diagram of the position structure of the receiving disc and the second protrusion of the present application;

[0023] Figure 6 It is a schematic diagram of the position structure of the L-shaped plate and the limiting plate of the present application;

[0024] Figure 7 It is a schematic diagram of the position structure of the L-shaped plate and the limiting plate of the present application; Figure 6 It is a schematic diagram of the position structure of the L-shaped plate and the limiting plate of the present application;

[0025] In the figure: 1, purification frame; 2, servo motor; 3, transmission shaft; 4, air inlet pipe; 5, exhaust pipe; 6, filter plate; 7, absorption frame; 8, absorption pipe; 9, discharge pipe; 10, receiving disc; 11, protrusion one; 12, protrusion two; 13, No. 1 spring; 14, adsorption frame; 15, stirring rod; 161, water inlet pipe; 162, water outlet pipe; 163, baffle; 164, drainage pipe; 165, limiting plate; 166, connecting rod; 167, partition; 168, receiving rod; 171, limiting plate; 172, push rod; 173, L-shaped plate; 174, fixed frame; 175, pressing plate; 176, receiving plate; 177, No. 2 spring. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0027] Please refer to Figures 1-7 An embodiment of the present application is: a tail gas absorption device for ethylamine processing, comprising a purification frame 1, a servo motor 2 is fixedly installed on the inner wall bottom of the purification frame 1, a transmission shaft 3 is fixedly installed on the output end of the servo motor 2, an air inlet pipe 4 is fixedly penetrated through the inner wall of the purification frame 1, and an exhaust pipe 5 is fixedly penetrated through the top of the purification frame 1. The tail gas absorption device further comprises a filter plate 6, an absorption frame 7, an absorption pipe 8, a discharge pipe 9, a receiving disc 10, a protrusion one 11 and a protrusion two 12. The tail gas is introduced into the inside of the purification frame 1 through the air inlet pipe 4, and then the servo motor 2 is started. After the tail gas enters the inside of the purification frame 1, the larger particulate matters in the tail gas are filtered out under the action of the filter plate 6. The filter plate 6 is slidingly installed on the inner wall of the purification frame 1. The absorption frame 7 is fixedly installed on the inner wall of the purification frame 1. The absorption pipe 8 is fixedly penetrated through the lower inner and outer walls of the absorption frame 7. The discharge pipe 9 is fixedly penetrated through the top of the absorption frame 7. The receiving disc 10 is fixedly installed on the circumferential surface of the transmission shaft 3. The protrusion one 11 is fixedly installed below the receiving disc 10. The protrusion two 12 is fixedly installed above the filter plate 6. The absorption frame 7 stores absorption liquid in the inside. The transmission shaft 3 drives the receiving disc 10 to rotate. The receiving disc 10 drives the protrusion one 11 to rotate. The protrusion one 11 rotates to contact and extrude the protrusion two 12 and generates vibration. The vibration can effectively shake off the foreign matters accumulated below the filter plate 6. The treatment effect of the tail gas is improved, and the gradual reduction of the treatment effect caused by the blockage of the filter plate 6 in the long-term tail gas treatment process is avoided.

[0028] The side of the bump one 11 close to the bump two 12 is set as arc surface one, the side of the bump two 12 close to the bump one 11 is set as arc surface two, a spring 13 is arranged between the absorption frame 7 and the filter plate 6, the spring 13 can drive the filter plate 6 to reset.

[0029] The inside of the purification frame 1 is fixedly installed with an adsorption frame 14, the circumferential surface of the transmission shaft 3 is fixedly installed with a stirring rod 15, the inside of the adsorption frame 14 stores activated carbon, the stirring rod 15 can effectively stir the activated carbon, improve the contact area of the activated carbon and the tail gas, and effectively avoid the caking of the activated carbon caused by humid water vapor, further improve the treatment effect of the tail gas discharged to the outside.

[0030] When the embodiment works: the tail gas is introduced into the inside of the purification frame 1 through the air inlet pipe 4, then the servo motor 2 is started, the tail gas enters the inside of the purification frame 1, and the larger particles in the tail gas are filtered out under the action of the filter plate 6, then the tail gas is introduced into the inside of the absorption frame 7 under the action of the absorption pipe 8, and the harmful substances in the tail gas are absorbed by the absorption liquid, in this process, the filter plate 6 will accumulate too much foreign matter under it after a long time of filtering, which will affect the filtering effect of the filter plate 6 and gradually increase the pressure received in the subsequent process of the tail gas flowing in, the gradually increasing pressure will push the filter plate 6 to move upwards, the filter plate 6 moving upwards drives the bump two 12 to move upwards, the bump two 12 moving upwards enters the movement track of the bump one 11, at this time, the output end of the servo motor 2 rotates to drive the transmission shaft 3 to rotate, the transmission shaft 3 rotating drives the bearing disc 10 to rotate, the bearing disc 10 rotating drives the bump one 11 to rotate, the bump one 11 rotating contacts and extrudes the bump two 12 and generates vibration, the vibration can effectively shake off the foreign matter accumulated under the filter plate 6, avoid the gradually reduced treatment effect caused by the blockage of the filter plate 6 in the process of long-time tail gas treatment, improve the treatment effect of the tail gas, at the same time, the tail gas after the absorption and adsorption is introduced into the inside of the adsorption frame 14 through the exhaust pipe 9, and further removes the harmful substances in the tail gas under the action of the activated carbon in the adsorption frame 14, at this time, the transmission shaft 3 rotating drives the stirring rod 15 to rotate, the stirring rod 15 rotating can effectively stir the activated carbon, improve the contact area of the activated carbon and the tail gas, and effectively avoid the caking of the activated carbon caused by humid water vapor, further improve the treatment effect of the tail gas discharged to the outside.

[0031] Please refer to Figures 1-7On the basis of the above-mentioned embodiment, in another embodiment of the present application, the surface of the absorption frame 7 is provided with a regeneration device for improving the tail gas absorption effect, the regeneration device comprises a water inlet pipe 161 and a water outlet pipe 162, the water inlet pipe 161 is fixedly penetrated through the inner and outer walls of the purification frame 1, the water outlet pipe 162 is fixedly penetrated through the inner and outer walls of the purification frame 1, the regeneration device further comprises a baffle 163, a drainage pipe 164, a limiting plate 165, a connecting rod 166, a partition plate 167 and a receiving rod 168, the receiving rod 168 is moved upward when the filter plate 6 is moved upward, the receiving rod 168 is moved upward to drive the limiting plate 165 to move upward, the baffle 163 is slidingly installed on the inner wall of the absorption frame 7, the drainage pipe 164 is fixedly installed on one side of the baffle 163 close to the water outlet pipe 162, the limiting plate 165 is slidingly penetrated through the top of the absorption frame 7, the connecting rod 166 is rotatably installed below the limiting plate 165, the partition plate 167 is slidingly installed on the inner wall of the absorption frame 7, the receiving rod 168 is fixedly installed above the filter plate 6, and the receiving rod 168 is slidingly penetrated through the upper and lower walls of the absorption frame 7, the absorption liquid reenters the inside of the absorption frame 7 through the water inlet pipe 161, thereby realizing the regeneration of the absorption liquid in the inside of the absorption frame 7, avoiding the absorption liquid in the inside of the absorption frame 7 being too saturated due to long-time absorption, and thereby reducing the absorption effect on subsequent tail gas.

[0032] The end of the connecting rod 166 away from the limiting plate 165 is rotatably connected below the baffle 163, the surface of the drainage pipe 164 is provided with a drainage groove, the circumferential surface of the drainage pipe 164 is slidingly connected with the inner wall of the water outlet pipe 162, and the surface of the partition plate 167 is provided with a water outlet, the partition plate 167 is moved upward to drive the water outlet to move upward and coincide with the water inlet pipe 161.

[0033] The limiting plate 165 is provided with two limiting plates 165, the two limiting plates 165 are symmetrically distributed with the center of the absorption frame 7, the upper end of the receiving rod 168 is fixedly connected with the limiting plate 165, the right limiting plate 165 is moved upward to drive the partition plate 167 to move upward, and the partition plate 167 is moved upward to drive the water outlet to move upward and coincide with the water inlet pipe 161.

[0034] The bottom of the absorption frame 7 is provided with a limiting device for limiting the entering tail gas, the limiting device comprises a limiting plate 171, the limiting plate 171 is slidingly installed below the absorption frame 7, the surface of the limiting plate 171 is provided with a through hole, the limiting device further comprises a push rod 172, an L-shaped plate 173, a fixed frame 174, a pressing plate 175 and a receiving plate 176, when the receiving rod 168 moves upward, the L-shaped plate 173 moves upward, the L-shaped plate 173 moves upward to contact and extrude the push rod 172 to move away from the receiving rod 168, the push rod 172 is fixedly installed on the side surface of the limiting plate 171, the L-shaped plate 173 is fixedly installed on the circumferential surface of the receiving rod 168, the fixed frame 174 is fixedly installed below the absorption frame 7, the pressing plate 175 is slidingly installed below the fixed frame 174, the receiving plate 176 is fixedly installed on the surface of the limiting plate 171, the limiting plate 171 moves to make the through hole on the surface thereof dislocated with the absorption pipe 8, thereby realizing the closure of the absorption pipe 8, preventing the tail gas from entering the inside of the absorption frame 7 through the absorption pipe 8, effectively avoiding the tail gas entering the inside of the absorption frame 7 when the absorption liquid is regenerated, causing the supersaturated absorption liquid to be unable to effectively absorb the harmful substances in the tail gas, thereby making the incomplete absorption of the tail gas directly discharged to cause the environment to be polluted, reducing the possibility of direct discharge of the tail gas.

[0035] The L-shaped plate 173 slidingly penetrates the bottom of the absorption frame 7, the surface of the receiving plate 176 is provided with a stabilizing groove, the lower side of the pressing plate 175 is provided as an arc surface, the side of the push rod 172 away from the limiting plate 171 is provided as an inclined surface, the inner wall of the fixed frame 174 and the pressing plate 175 are provided with a second spring 177, the pressing plate 175 moves downward under the action of the second spring 177, the pressing plate 175 moves downward into the inside of the stabilizing groove on the surface of the receiving plate 176, which can effectively avoid the through hole on the surface of the limiting plate 171 from not being completely coincided with the absorption pipe 8 due to incomplete reset, thereby reducing the absorption efficiency of the tail gas, maintaining the stability during the working process of the equipment, and reducing the subsequent maintenance cost.

[0036] When the filter plate 6 moves upward, the supporting rod 168 moves upward, the supporting rod 168 drives the limiting plate 165 to move upward, the limiting plate 165 drives one end of the connecting rod 166 to move upward, the one end of the connecting rod 166 moves upward and drives the baffle 163 to move away from the water outlet pipe 162, the baffle 163 drives the drainage pipe 164 to move, and the drainage pipe 164 moves to make the absorption liquid in the absorption frame 7 enter the inside of the water outlet pipe 162 through the drainage groove on the surface of the drainage pipe 164 and be discharged. At this time, the right limiting plate 165 moves upward and drives the partition plate 167 to move upward, the partition plate 167 moves upward and drives the water outlet to move upward and coincide with the water inlet pipe 161, and the absorption liquid reenters the inside of the absorption frame 7 through the water inlet pipe 161, thereby realizing the regeneration of the absorption liquid in the absorption frame 7, avoiding that the absorption liquid in the absorption frame 7 is too saturated due to long-time absorption, and reducing the absorption effect on the subsequent tail gas. When the filter plate 6 is reset under the action of the first spring 13, the baffle 163 and the partition plate 167 re-close the water outlet pipe 162 and the water inlet pipe 161, and continue to absorb the subsequent tail gas, thereby reducing the maintenance cost and improving the treatment effect on the tail gas.

[0037] When the supporting rod 168 moves upward, the L-shaped plate 173 moves upward, the L-shaped plate 173 contacts and extrudes the pushing rod 172 to move away from the supporting rod 168, the pushing rod 172 drives the limiting plate 171 to move, the limiting plate 171 moves to make the through hole on the surface of the limiting plate 171 be out of position with the absorption pipe 8, thereby realizing the closure of the absorption pipe 8 and preventing the tail gas from entering the inside of the absorption frame 7 through the absorption pipe 8. This can effectively avoid that the over-saturated absorption liquid cannot effectively absorb the harmful substances in the tail gas when the absorption liquid is regenerated, thereby making the incompletely absorbed tail gas directly discharged to pollute the environment and reducing the possibility of directly discharging the tail gas. When the limiting plate 171 moves, the supporting plate 176 moves, the supporting plate 176 extrudes the pressing plate 175 to move upward, the pressing plate 175 moves upward and extrudes the second spring 177 to contract. When the limiting plate 171 is reset, the pressing plate 175 moves downward under the action of the second spring 177, the pressing plate 175 moves downward into the stable groove on the surface of the supporting plate 176, thereby effectively avoiding that the through hole on the surface of the limiting plate 171 cannot completely coincide with the absorption pipe 8 due to incomplete resetting, thereby reducing the absorption efficiency of the tail gas, maintaining the stability during the working process of the equipment, and reducing the subsequent maintenance cost.

[0038] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A tail gas absorption device for ethylamine processing, comprising a purification frame, a servo motor fixedly mounted on the bottom of the inner wall of the purification frame, a drive shaft fixedly mounted on the output end of the servo motor, an inlet pipe fixedly penetrating the inner wall of the purification frame, and an exhaust pipe fixedly penetrating the top of the purification frame, characterized in that, Also include: The absorption device includes filter plate, absorption frame, absorption pipe, exhaust pipe, receiving disc, convex block one and convex block two, the filter plate is slidingly installed on the inner wall of the purification frame, the absorption frame is fixedly installed on the inner wall of the purification frame, the absorption pipe is fixedly penetrated through the lower inner and outer wall of the absorption frame, the exhaust pipe is fixedly penetrated through the top of the absorption frame, the receiving disc is fixedly installed on the circumference of the transmission shaft, the convex block one is fixedly installed below the receiving disc, the convex block two is fixedly installed above the filter plate, the inside of the absorption frame stores absorption liquid; Wherein, the surface of the absorption frame is provided with a regeneration device for improving the absorption effect of the tail gas, the regeneration device includes water inlet pipe and water outlet pipe, the water inlet pipe is fixedly penetrated through the inner and outer wall of the purification frame, the water outlet pipe is fixedly penetrated through the inner and outer wall of the purification frame; Wherein, the bottom of the absorption frame is provided with a limiting device for limiting the entering tail gas, the limiting device includes a limiting plate, the limiting plate is slidingly installed below the absorption frame, the surface of the limiting plate is provided with a through hole; The side of the convex block one close to the convex block two is provided as an arc surface one, the side of the convex block two close to the convex block one is provided as an arc surface two, a spring is arranged between the absorption frame and the filter plate; The regeneration device further includes a baffle, a drainage pipe, a limiting plate, a connecting rod, a partition plate and a receiving rod, the baffle is slidingly installed on the inner wall of the absorption frame, the drainage pipe is fixedly installed on the side of the baffle close to the water outlet pipe, the limiting plate is slidingly penetrated through the top of the absorption frame, the connecting rod is rotatably installed below the limiting plate, the partition plate is slidingly installed on the inner wall of the absorption frame, the receiving rod is fixedly installed on the top of the filter plate, and the receiving rod is slidingly penetrated through the upper and lower walls of the absorption frame; The end of the connecting rod away from the limiting plate is rotatably connected with the lower side of the baffle, the surface of the drainage pipe is provided with a drainage groove, the circumference of the drainage pipe is slidingly connected with the inner wall of the water outlet pipe, and the surface of the partition plate is provided with a water outlet; the upward movement of the partition plate drives the upward movement of the water outlet and coincides with the water inlet pipe; The limiting plate is provided with two limiting plates, which are symmetrically distributed with the center of the absorption frame, and the upper side of the receiving rod is fixedly connected with the limiting plate; After a long time of filtering, the filter plate will accumulate too much foreign matter below, which will affect the filtering effect of the filter plate and gradually increase the pressure received in the subsequent process of tail gas inflow. The gradually increasing pressure will push the filter plate to move upward, the filter plate moving upward will drive the convex block two to move upward, the convex block two moving upward will enter the movement track of the convex block one, at this time, the output end of the servo motor will rotate to drive the transmission shaft to rotate, the transmission shaft rotating will drive the receiving disc to rotate, the receiving disc rotating will drive the convex block one to rotate, and the convex block one rotating will contact and extrude the convex block two and produce vibration.

2. An off-gas absorption apparatus for ethylamine processing according to claim 1, characterized in that: The inside of the purification frame is fixedly installed with an adsorption frame, the circumference of the transmission shaft is fixedly installed with a stirring rod, and the inside of the adsorption frame stores activated carbon.

3. An apparatus for absorbing off-gas from ethylamine processing according to claim 2, characterized in that: The limiting device further comprises a pushing rod, an L-shaped plate, a fixed frame, a pressing plate and a receiving plate, the pushing rod is fixedly installed on the side of the limiting plate, the L-shaped plate is fixedly installed on the circumferential surface of the receiving rod, the fixed frame is fixedly installed below the absorbing frame, the pressing plate is slidingly installed below the fixed frame, and the receiving plate is fixedly installed on the surface of the limiting plate.

4. An off-gas absorption apparatus for ethylamine processing according to claim 3, characterized in that: The L-shaped plate slidingly penetrates the bottom of the absorbing frame, the surface of the receiving plate is provided with a stabilizing groove, the lower portion of the pressing plate is provided as an arc surface, the side of the pushing rod away from the limiting plate is provided as an inclined surface, and the inner wall of the fixed frame is provided with a No.

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