Tail gas dissolving and dedusting device for sulfamic acid production

Abstract

The application relates to the field of industrial waste gas treatment, and discloses a tail gas dissolving and dedusting device for aminosulfonic acid production, which comprises a tank body, an air inlet mechanism, a dedusting mechanism and a primary spraying mechanism arranged on the tank body. The air inlet mechanism comprises an air inlet pipe arranged on the bottom of the tank body in the vertically upward direction, a baffle arranged on the top end of the air inlet pipe and a rotating rod arranged on the baffle in the vertical direction. The rotating rod is provided with blades. The top of the air inlet pipe is uniformly provided with air outlet holes. The primary spraying mechanism comprises a first spraying pipe rotatably arranged on the top of the tank body and a second spraying pipe symmetrically and communicatively arranged on the bottom of the first spraying pipe in the horizontal direction. The second spraying pipe is uniformly provided with a plurality of first spraying heads in the vertically downward direction. The application has the effects of absorbing and dissolving dust, sulfur dioxide, ammonia and the like in tail gas and improving the treatment efficiency of the tail gas.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of industrial waste gas treatment, and particularly relates to a tail gas dissolving and dedusting device for aminosulfonic acid production. BACKGROUND

[0002] Aminosulfonic acid (NH2SO3H) is an important chemical raw material, which is often used for synthesizing herbicides, preservatives, metal cleaning agents and the like. In the reaction of urea (CO(NH2)2) and fuming sulfuric acid (H2SO4·xSO3) at low temperature to generate aminosulfonic acid, the tail gas generated in the reaction contains dust, by-product sulfur dioxide, ammonia and the like, which need to be treated before being discharged.

[0003] The existing tail gas treatment equipment usually first treats the dust, then uses an alkaline solution to absorb the acidic gas, then uses an ammonia gas absorption tower to absorb the ammonia, and finally uses activated carbon or the like to absorb nitrogen oxides, so that the whole treatment process needs to go through multiple procedures, the treatment process is relatively complicated, and the treatment efficiency is relatively low. SUMMARY

[0004] The present application aims to provide a tail gas dissolving and dedusting device for aminosulfonic acid production, which has the effect of absorbing and dissolving dust, sulfur dioxide, ammonia and the like in the tail gas, and improving the treatment efficiency of the tail gas.

[0005] The technical problem is solved by the following technical scheme: the dust collector comprises a tank body, an air inlet mechanism, a dust removal mechanism and a primary spraying mechanism, the top of the tank body is connected with an exhaust pipe, the air inlet mechanism comprises an air inlet pipe arranged on the bottom of the tank body in a vertical upward direction, a baffle arranged on the top end of the air inlet pipe and a rotating rod arranged on the baffle in a vertical direction, the rotating rod is provided with blades, the blades are located on the top of the air inlet pipe, the top of the air inlet pipe is uniformly provided with air outlet holes, the primary spraying mechanism comprises a first spraying pipe arranged on the top of the tank body in a rotating manner and a second spraying pipe arranged on the bottom of the first spraying pipe in a symmetrical and connected manner in a horizontal direction, a plurality of first spraying heads are uniformly arranged on the second spraying pipe in a vertical downward direction, the top end of the rotating rod is fixedly connected with the bottom end of the first spraying pipe, the dust removal mechanism comprises a first liquid outlet pipe arranged on the tank body in a symmetrical and connected manner in a horizontal direction and a second liquid outlet pipe arranged in a vertical direction and connected with the end of the first liquid outlet pipe, the end of the first liquid outlet pipe close to the tank body has a set distance with the bottom of the tank body, the horizontal plane where the end of the first liquid outlet pipe close to the tank body is located is lower than the horizontal plane where the air outlet holes are located, the tank body is provided with a control mechanism for controlling the opening and closing of the first liquid outlet pipe, the bottom of the second liquid outlet pipe is provided with a third liquid outlet pipe in a horizontal direction, the second liquid outlet pipe is provided with a cylindrical filter cylinder, and the bottom end of the second liquid outlet pipe is provided with a first valve block connected in a threaded manner.

[0006] By adopting the above technical scheme, in the production process of aminosulfonic acid, the tail gas generated is transported through the gas inlet pipe, and when the tail gas is transported to the top end of the gas inlet pipe, the blades are pushed to rotate, thereby driving the rotating rod and the first spraying pipe to rotate, and then the tail gas enters the tank body through the gas outlet hole on the gas inlet pipe from the rotating blades, at this time, the ammonia water is transported to the first spraying pipe through a special conveying pipeline (it should be noted that the pipeline for conveying ammonia water is rotatably connected with the first spraying pipe), and then sprayed downward from the first spraying pipe, the second spraying pipe and the plurality of first spraying heads, since the rotating rod drives the first spraying pipe and the second spraying pipe to rotate, the first spraying head sprays downward in the rotating process to contact the tail gas entering the tank body, after the SO2, ammonia and dust in the tail gas contact the ammonia water, the SO2 and ammonia are dissolved in the ammonia water to react to generate ammonium sulfite, and the dust enters the bottom of the tank body with the ammonia water, as the liquid level in the bottom of the tank body rises, the first liquid outlet pipe is opened through the control mechanism, so that the liquid flows out of the first liquid outlet pipe and into the filter cartridge of the second liquid outlet pipe, the liquid flows out of the third liquid outlet pipe through the filtration of the filter cartridge, and the dust and impurities are left in the filter cartridge, after a period of time, the first valve block can be rotated to directly take out the filter cartridge downward for treatment of the dust in the filter cartridge (it should be noted that the tail gas after spraying with ammonia water also contains nitrogen oxides, which can be treated by activated carbon later); by arranging the rotating rod and the blades, the rotating rod can be driven to rotate in the process of the tail gas entering the tank body, thereby driving the first spraying pipe and the second spraying pipe to rotate, so that the first spraying head sprays downward in the rotating process, greatly increasing the spraying range of the first spraying head, and at the same time, the tail gas is discharged from the top of the gas inlet pipe along the horizontal direction through the rotating blades, which can also prolong the contact time of the tail gas in the tank body with the ammonia water, ensure that the tail gas entering the tank body from the gas inlet pipe can fully contact the ammonia water, so that the SO2 and ammonia can be fully dissolved in the ammonia water, and the dust can be adsorbed and removed, thereby improving the treatment efficiency of the tail gas; by arranging the first liquid outlet pipe and the second liquid outlet pipe, the liquid in the tank body can be accumulated to a certain height and then discharged through the first liquid outlet pipe, and at the same time, the dust is collected in the filter cartridge through the filtration of the filter cartridge, and the bottom of the second liquid outlet pipe can be opened for treatment later, which is simple and convenient, so that the dust, sulfur dioxide and ammonia in the tail gas can be treated by the tank, without the need for multiple processes, and the treatment efficiency of the tail gas can be greatly improved.

[0007] Further provided in the application is that the control mechanism comprises a circular second valve block slidingly arranged on the inner wall of the tank body in the vertical direction and a first floating plate horizontally arranged at the bottom end of the second valve block.

[0008] By adopting the technical scheme, the ammonia water sprayed by the first spray head contacts the tail gas and then flows to the bottom of the tank body, and as the liquid level at the bottom of the tank body rises, the first floating plate also pushes the second valve block to rise, when the second valve block rises to a certain height, the first liquid outlet pipe is opened, and the liquid in the tank body flows out from the first liquid outlet pipe, and as the dust is lighter in weight, it floats on the liquid surface, so the dust flows out from the first liquid outlet pipe along with the liquid when the first liquid outlet pipe is opened; by arranging the first floating plate and the second valve block, the height of the second valve block changes with the liquid level, and the liquid and the dust are automatically discharged without manual operation, which is more convenient and efficient, and meanwhile, the problem that the liquid level in the tank body is too high to affect the normal passage of the tail gas can be avoided.

[0009] Further arrangement of the present application is that the first floating plate is rotatable around the gas inlet pipe, one end of the first floating plate is rotatably connected to the bottom of the second valve block, the other end of the first floating plate is rotatably connected to the outer wall of the gas inlet pipe, and a synchronous rod is vertically arranged at the top end of the first floating plate and movably passes through the second spray pipe.

[0010] By adopting the technical scheme, the synchronous rod is arranged, and when the second spray pipe rotates, the first floating plate is driven to rotate by the synchronous rod, on one hand, the first floating plate can drive the gas at the bottom of the tank body to flow during the rotation process, so that the tail gas to be introduced can be more fully contacted with the spray liquid, and on the other hand, when the liquid level rises to the opening of the first liquid outlet pipe, the rotation of the first floating plate on the liquid level can push the dust on the liquid level to move, so that the dust on the liquid level can be more quickly discharged from the first liquid outlet pipe along with the liquid, and the treatment efficiency of the dust is improved.

[0011] Further arrangement of the present application is that a cylindrical reflux part is arranged at the bottom of the tank body, one end of the third liquid outlet pipe away from the second liquid outlet pipe is communicated with the reflux part, reflux pipes are symmetrically and communicatively arranged on the outer wall of the reflux part, a water pump is arranged on the reflux pipe, a third spray pipe is horizontally arranged at the top of the reflux pipe, the third spray pipe passes through the top of the tank body, a second spray head is arranged at the end of the third spray pipe in a vertically downward direction, a first filler layer is horizontally arranged in the tank body, and the first filler layer is located between the second spray head and the second spray pipe.

[0012] By adopting the technical scheme, the liquid filtered by the filter cartridge in the tank body enters the reflux part from the third liquid outlet pipe (it should be noted that after the liquid is treated once, part of the liquid is converted into ammonium sulfite, the concentration of ammonia water is reduced, the absorption capacity for ammonia gas is increased, and therefore the liquid can be used for secondary absorption of the tail gas), then the liquid in the reflux part is transported to the third spray pipe through the water pump, and finally the liquid is sprayed downward from the second spray head, part of the sprayed liquid is distributed in the first filler layer, and can be in contact with the tail gas sprayed by the first spray head again to dissolve and absorb sulfur dioxide and ammonia gas in the tail gas; therefore, by arranging the reflux pipe and the like, on the one hand, the liquid treated once can be used to treat the tail gas, to ensure that sulfur dioxide and ammonia gas in the tail gas are completely dissolved and absorbed, and on the other hand, by using the treated liquid twice, the absorption capacity for ammonia gas can be increased, and the cost of treating the tail gas can be reduced; by arranging the first filler layer, the contact time of the treated liquid and the tail gas is increased, and it is ensured that sulfur dioxide and ammonia gas in the tail gas can be completely dissolved and absorbed.

[0013] Further provided in the application is that the tank body comprises, from bottom to top, a cylindrical first spray part, a bucket-shaped second spray part, a bucket-shaped third spray part and a cylindrical fourth spray part, the cross-sectional area of the top end of the second spray part is smaller than the cross-sectional area of the bottom end of the second spray part, the cross-sectional area of the top end of the third spray part is larger than the cross-sectional area of the bottom end of the third spray part, the second spray head and the first filler layer are located in the fourth spray part, a fifth spray part is arranged between the second spray part and the third spray part in a vertical direction, a plug plate is movably arranged in the fifth spray part, a circular ring-shaped first push plate is horizontally arranged on the outer wall of the first spray pipe, the first push plate is located directly above the plug plate, a circular ring-shaped second push plate is rotatably arranged at the bottom of the first push plate, a reset spring is arranged between the second push plate and the plug plate, the first spray pipe movably passes through the reset spring and the plug plate, and when the reset spring is in the original length, the plug plate is located in the fifth spray part.

[0014] By adopting the technical scheme, the second spraying part, the third spraying part and the like are arranged, when the air pressure in the first spraying part is small, the plug plate is located in the fifth spraying part, so that the second spraying part and the third spraying part are in a relatively isolated state, thus the treatment liquid sprayed from the second spraying head is accumulated in the third spraying part, then as the air pressure in the first spraying part rises, the plug plate is pushed upward, so that the plug plate moves to the third spraying part, the liquid in the third spraying part flows downward from the gap between the plug plate and the fifth spraying part, contacts with the tail gas in the fifth spraying part, and dissolves and absorbs the ammonia and residual sulfur dioxide in the tail gas, then the tail gas enters the fourth spraying part and contacts with the liquid in the first filler layer, and the tail gas is treated again; thus, by arranging the second spraying part and the third spraying part in the shape of a bucket, the diameter of the fifth spraying part can be narrowed, on the one hand, the plug plate can isolate the second spraying part and the third spraying part, the air pressure in the first spraying part can be increased, the dust in the tail gas can be accelerated to sink downward in the air, the liquid at the bottom of the tank body can be pressed to accelerate the discharge of the liquid, and a part of the treatment liquid can be accumulated in the third spraying part, so that the treatment liquid can fully contact with the tail gas in the fifth spraying part under the action of the air pressure, and the sulfur dioxide and the ammonia in the tail gas can be completely treated, and the treatment capacity of the device for the tail gas is improved.

[0015] Further provided in the application is that the bottom of the plug plate is provided with a second filler layer, the second filler layer is movably attached to the inner wall of the fifth spraying part, and the first spraying pipe movably passes through the second filler layer.

[0016] By adopting the technical scheme, the second filler layer is arranged, when the plug plate is pushed upward to the second filler layer to enter the third spraying part under the action of the pressure of the tail gas in the first spraying part, the liquid accumulated in the third spraying part rapidly fills in the second filler layer and contacts with the tail gas, the tail gas passing through the second filler layer subsequently contacts with the liquid in the second filler layer, and the sulfur dioxide and the ammonia in the tail gas are further absorbed and dissolved, meanwhile, the second filler layer is arranged in cooperation with the second spraying part in the shape of a bucket, so that a part of the dust possibly remaining in the tail gas is adsorbed on the inner wall of the second spraying part and a part of the dust passes through the second filler layer and is adsorbed on the second filler layer in the process of moving upward, and the dust is subsequently washed down by the treatment liquid passing through the second filler layer, in addition, the treatment liquid passing through the second filler layer from top to bottom is divided into a plurality of small droplets, most of which flow downward along the inner wall of the second spraying part, so that the dust adsorbed on the inner wall of the second spraying part is washed down, and the automatic cleaning of the inner wall of the tank body is realized; in summary, the arrangement of the second filler layer not only can further realize the complete adsorption and dissolution of the sulfur dioxide and other gases in the tail gas, but also can avoid the dust passing through the fifth spraying part, and realize the automatic cleaning of the inner wall of the second spraying part.

[0017] The further arrangement of the present application is that the bottom of the reflux part is provided with a first liquid discharge pipe in communication, a third valve block is movably arranged in the first liquid discharge pipe, the top end of the third valve block is provided with a lifting rod in the vertical direction, the outer wall of the air inlet pipe is slidably provided with a second floating plate in the vertical direction, the second floating plate is located in the reflux part, the second floating plate is fixedly connected with the lifting rod, and the second floating plate has a set distance from the third valve block.

[0018] By adopting the above technical scheme, the second floating plate, the third valve block and the like are arranged, and with the continuous spraying of the first spraying head, even if the water in the reflux part is pumped by the water pump, the water level in the reflux part will continue to rise, driving the second floating plate, the lifting rod and the third valve block to rise, and when the third valve rises to separate from the first liquid discharge pipe, the liquid in the reflux part is discharged from the first liquid discharge pipe, so that the liquid in the reflux part can be discharged in time, and accumulation of the liquid in the reflux part is avoided, so that the liquid in the tank body cannot be normally discharged.

[0019] The further arrangement of the present application is that the bottom of the tank body is provided with a liquid discharge hole in communication with the reflux part, the top of the lifting rod is provided with a fourth valve block matched with the liquid discharge hole, a driving air cylinder is vertically arranged on the outer wall of the reflux part, a pushing rod is arranged on the driving air cylinder in the vertical direction, the pushing rod movably penetrates through the reflux part, and the top of the pushing rod is movably attached to the bottom of the second floating plate.

[0020] By adopting the above technical scheme, the liquid discharge hole and the fourth valve block are arranged, when the liquid surface in the reflux part rises to the opening of the first liquid discharge pipe, the fourth valve block is still clamped in the liquid discharge hole, and then when the tail gas treatment is completed, the driving air cylinder is opened, the pushing rod is driven to rise and push the second valve block to be attached to the top of the reflux part, at this time, the liquid discharge hole and the first liquid discharge pipe are both in the open state, so that the residual part of the treatment liquid in the tank body and the reflux part can flow out from the first liquid discharge pipe, and subsequent tail gas treatment can be continued.

[0021] The further arrangement of the present application is that the top of the synchronous rod is provided with a scraper, the scraper is movably attached to the inner wall of the second spraying part, and when the scraper is attached to the inner wall of the second spraying part, the horizontal plane where the first floating plate is located is higher than the horizontal plane where the end of the first liquid discharge pipe is located.

[0022] By adopting the technical scheme, the scraper is arranged, when the first floating plate rises to abut against the inner wall of the second spraying part, the first floating plate cannot continue to rise, at this time, the first liquid outlet pipe is in an open state, and the treatment liquid in the tank body is discharged from the first liquid outlet pipe, at this time, the synchronous rod still drives the scraper and the first floating plate to rotate, the liquid and dust adsorbed on the inner wall of the second spraying part can be scraped off in the process of rotation of the scraper, and the second spraying part is cleaned; when there is a certain distance between the first floating plate and the inner wall of the second spraying part, the rotating scraper can agitate the tail gas located in the second spraying part, so that part of the dust remaining in the tail gas is settled, and the tail gas can also form a spiral airflow to generate downward movement and contact with the ammonia water sprayed by the first spraying pipe, thereby prolonging the action time between the tail gas and the treatment liquid.

[0023] Further provided in the application is that the bottom of the second valve block is provided with a circular annular first magnetic block, and the bottom of the tank body is provided with a circular annular second magnetic block matched with the first magnetic block, when the first magnetic block is attached to the second magnetic block, the scraper and the second spraying pipe have a set distance.

[0024] By adopting the above technical scheme, the first magnetic block and the like are arranged, in the case that the liquid level in the tank body is low, the mutual attraction between the first magnetic block and the second magnetic block ensures that the second valve block can be attached to the pipe opening of the first liquid outlet pipe, thereby ensuring the closed state of the first liquid outlet pipe and realizing the positioning of the second valve block.

[0025] The application has the following beneficial effects:

[0026] 1. By arranging the rotating rod and the blade, the rotating rod can be driven to rotate in the process that the tail gas enters the tank body, thereby driving the first spraying pipe and the second spraying pipe to rotate, so that the first spraying head sprays downward in the process of rotation, greatly increasing the spraying range of the first spraying head, and at the same time, the tail gas is discharged from the top of the air inlet pipe along the horizontal direction through the rotating blade, which can also prolong the contact time of the tail gas with the ammonia water in the tank body, ensure that the tail gas entering the tank body from the air inlet pipe can fully contact with the ammonia water, make SO2 and ammonia gas fully dissolve in the ammonia water, and simultaneously adsorb and remove the dust, thereby improving the treatment efficiency of the tail gas; by arranging the first liquid outlet pipe and the second liquid outlet pipe, the liquid in the tank body can be accumulated to a certain height and then discharged through the first liquid outlet pipe, and at the same time, the dust is gathered in the filter cartridge through the filtration of the filter cartridge, and the bottom of the second liquid outlet pipe can be opened for treatment subsequently, which is simple and convenient, so that the dust, sulfur dioxide and ammonia gas in the tail gas can be treated through the tank body, without the need to go through multiple processes, and the treatment efficiency of the tail gas can be greatly improved.

[0027] 2. By setting the second and third spraying parts in the shape of a bucket, the diameter of the fifth spraying part can be narrowed, on the one hand, the plug plate can isolate the second and third spraying parts, the air pressure in the first spraying part can be increased, the dust in the tail gas can be accelerated to sink downward in the air, at the same time, the liquid at the bottom of the tank can be pressed to accelerate the discharge of the liquid, a part of the treatment liquid in the third spraying part can be accumulated, the treatment liquid can be in full contact with the tail gas under the action of air pressure after pushing the plug plate, the sulfur dioxide and ammonia in the tail gas can be further ensured to be completely treated, and the treatment capacity of the device for the tail gas can be improved.

[0028] 3. By setting the second filler layer, the sulfur dioxide and other gases in the tail gas can be further completely adsorbed and dissolved, dust passing through the fifth spraying part can be avoided, and the inner wall of the second spraying part can be automatically cleaned. BRIEF DESCRIPTION OF DRAWINGS

[0029] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0030] Figure 1 is a structural schematic diagram of an embodiment of the tail gas dissolving and dust removing device for the production of sulfamic acid.

[0031] Figure 2 is a partial sectional structural schematic diagram of an embodiment of the tail gas dissolving and dust removing device for the production of sulfamic acid.

[0032] Figure 3 is Figure 2 is an enlarged schematic diagram of A in FIG.

[0033] Figure 4 is Figure 2 is an enlarged schematic diagram of B in FIG.

[0034] Figure 5 is Figure 2 is an enlarged schematic diagram of C in FIG.

[0035] Figure 6 is a structural schematic diagram of an embodiment of the tail gas dissolving and dust removing device for the production of sulfamic acid.

[0036] In the figure, 1, tank body; 1a, first spraying part; 1b, second spraying part; 1c, third spraying part; 1d, fourth spraying part; 2, air inlet mechanism; 2a, air inlet pipe; 2b, baffle; 2c, rotating rod; 3, dust removal mechanism; 3a, first liquid outlet pipe; 3b, second liquid outlet pipe; 4, first-stage spraying mechanism; 4a, first spraying pipe; 4b, second spraying pipe; 5, air outlet pipe; 6, vane; 7, air outlet hole; 8, first spraying head; 9, control mechanism; 9a, second valve block; 9b, first floating plate; 10, third liquid outlet pipe; 11, filter cartridge; 12, first valve block; 13, synchronizing rod; 14, backflow part; 15, backflow pipe; 16, water pump; 17, third spraying pipe; 18, second spraying head; 19, first filler layer; 20, fifth spraying part; 21, plug plate; 22, first push plate; 23, second push plate; 24, return spring; 25, second filler layer; 26, first liquid discharge pipe; 27, third valve block; 28, lifting rod; 29, second floating plate; 30, liquid discharge hole; 31, fourth valve block; 32, driving air cylinder; 33, pushing rod; 34, scraper; 35, first magnetic block; 36, second magnetic block; 37, first rotating wheel; 38, second rotating wheel; 39, synchronous belt; 40, driving motor. DETAILED DESCRIPTION

[0037] The technical solutions of the present application will be described clearly and completely below in connection with specific embodiments. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments. Based on the embodiments of the present application, all the other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0038] Embodiment 1: The present application provides a tail gas dissolving and dust removal device for sulfamic acid production, which comprises a tank body 1, an air inlet mechanism 2, a dust removal mechanism 3, a first-stage spraying mechanism 4, an air outlet pipe 5, a filter cartridge 11, a control mechanism 9, a backflow part 14, a water pump 16, a third spraying pipe 17, a second spraying head 18, a first filler layer 19, a fifth spraying part 20, a plug plate 21, a first push plate 22, a second push plate 23, a return spring 24, a second filler layer 25, a first liquid discharge pipe 26, a third valve block 27, a lifting rod 28, a second floating plate 29, a liquid discharge hole 30, a fourth valve block 31, a driving air cylinder 32, a pushing rod 33, a scraper 34, a first magnetic block 35, a second magnetic block 36, a first rotating wheel 37, a second rotating wheel 38, a synchronous belt 39, and a driving motor 40. Figures 1 to 5As shown, including the tank body 1, provided on the tank body 1 on the intake mechanism 2, dust removal mechanism 3 and a first spray mechanism 4, the tank body 1 top communication is provided with the exhaust pipe 5, the intake mechanism 2 includes along the vertical upward direction provided on the bottom of the tank body 1 air inlet pipe 2a, provided on the top end of the baffle 2b and the rotating rod 2c is arranged on the baffle 2b along the vertical direction, the rotating rod 2c is provided with a blade 6, the blade 6 is located on the top of the air inlet pipe 2a, the top of the air inlet pipe 2a is uniformly provided with air outlet hole 7, the first spray mechanism 4 includes rotatingly arranged on the top of the tank body 1 first spray pipe 4a and along the horizontal direction symmetrically connected to the bottom of the first spray pipe 4a second spray pipe 4b, the second spray pipe 4b is uniformly provided with a plurality of first spray head 8 along the vertical downward direction, the top end of the rotating rod 2c and the bottom end of the first spray pipe 4a are fixedly connected, the dust removal mechanism 3 includes a first liquid outlet pipe 3a symmetrically connected to the tank body 1 along the horizontal direction and a second liquid outlet pipe 3b connected to the end of the first liquid outlet pipe 3a along the vertical direction, the first liquid outlet pipe 3a is close to the tank body 1 one end and the bottom of the tank body 1 has a set distance, the horizontal plane where the first liquid outlet pipe 3a is close to the tank body 1 one end is lower than the horizontal plane where the air outlet hole 7 is located, the tank body 1 is provided with a control mechanism 9 for controlling the opening and closing of the first liquid outlet pipe 3a, the bottom of the second liquid outlet pipe 3b is provided with a third liquid outlet pipe 10 along the horizontal direction, the second liquid outlet pipe 3b is provided with a cylindrical filter cylinder 11, and the bottom end of the second liquid outlet pipe 3b is provided with a threaded first valve block 12.

[0039] Further, the control mechanism 9 includes a circular ring-shaped second valve block 9a slidingly arranged on the inner wall of the tank body 1 along the vertical direction and a first floating plate 9b horizontally arranged at the bottom end of the second valve block 9a.

[0040] Further, the first floating plate 9b can rotate around the air inlet pipe 2a, one end of the first floating plate 9b is rotatably connected to the bottom of the second valve block 9a, the other end of the first floating plate 9b is rotatably connected to the outer wall of the air inlet pipe 2a, the top end of the first floating plate 9b is vertically provided with a synchronous rod 13, and the synchronous rod 13 passes through the second spray pipe 4b.

[0041] Further, the bottom of the tank body 1 is provided with a cylindrical reflux part 14, one end of the third liquid outlet pipe 10 away from the second liquid outlet pipe 3b communicates with the reflux part 14, the outer wall of the reflux part 14 is symmetrically provided with reflux pipes 15, the reflux pipes 15 are provided with water pumps 16, the top of the reflux pipe 15 is provided with a third spray pipe 17 in the horizontal direction, the third spray pipe 17 penetrates the top of the tank body 1, the end of the third spray pipe 17 is provided with a second spray head 18 in the vertically downward direction, a first filler layer 19 is horizontally arranged in the tank body 1, and the first filler layer 19 is located between the second spray head 18 and the second spray pipe 4b.

[0042] Further, the tank body 1 sequentially comprises a cylindrical first spray part 1a, a bucket-shaped second spray part 1b, a bucket-shaped third spray part 1c and a cylindrical fourth spray part 1d from bottom to top, the cross-sectional area of the top end of the second spray part 1b is smaller than that of the bottom end of the second spray part 1b, the cross-sectional area of the top end of the third spray part 1c is larger than that of the bottom end of the third spray part 1c, the second spray head 18 and the first filler layer 19 are located in the fourth spray part 1d, a fifth spray part 20 is arranged in the vertical direction between the second spray part 1b and the third spray part 1c, a plug plate 21 is movably arranged in the fifth spray part 20, a circular ring-shaped first push plate 22 is horizontally arranged on the outer wall of the first spray pipe 4a, the first push plate 22 is located directly above the plug plate 21, a circular ring-shaped second push plate 23 is rotatably arranged at the bottom of the first push plate 22, a reset spring 24 is arranged between the second push plate 23 and the plug plate 21, and the first spray pipe 4a movably penetrates the reset spring 24 and the plug plate 21; when the reset spring 24 is in the original length, the plug plate 21 is located in the fifth spray part 20.

[0043] Further, the bottom of the plug plate 21 is provided with a second filler layer 25, the second filler layer 25 movably adheres to the inner wall of the fifth spray part 20, and the first spray pipe 4a movably penetrates the second filler layer 25.

[0044] Further, the bottom of the reflux part 14 is provided with a first liquid discharge pipe 26, a third valve block 27 is movably arranged in the first liquid discharge pipe 26, the top end of the third valve block 27 is provided with a lifting rod 28 in the vertical direction, a second floating plate 29 is slidably arranged on the outer wall of the air inlet pipe 2a in the vertical direction, the second floating plate 29 is located in the reflux part 14, the second floating plate 29 is fixedly connected with the lifting rod 28, and the second floating plate 29 and the third valve block 27 have a set distance.

[0045] Further, the bottom end of the tank body 1 is provided with a liquid discharge hole 30 communicated with the reflux part 14, the top of the lifting rod 28 is provided with a fourth valve block 31 matched with the liquid discharge hole 30, the outer wall of the reflux part 14 is vertically provided with a driving air cylinder 32, the driving air cylinder 32 is vertically provided with a pushing rod 33, the pushing rod 33 movably passes through the reflux part 14, and the top of the pushing rod 33 movably abuts against the bottom of the second floating plate 29.

[0046] Further, the top of the synchronous rod 13 is provided with a scraper 34 movably abutting against the inner wall of the second spraying part 1b, and when the scraper 34 abuts against the inner wall of the second spraying part 1b, the horizontal plane where the first floating plate 9b is located is higher than the horizontal plane where the end of the first liquid outlet pipe 3a is located.

[0047] Further, the bottom of the second valve block 9a is provided with a circular ring-shaped first magnetic block 35, the bottom of the tank body 1 is provided with a circular ring-shaped second magnetic block 36 matched with the first magnetic block 35, and when the first magnetic block 35 abuts against the second magnetic block 36, the scraper 34 has a set distance from the second spraying pipe 4b.

[0048] In the production process of amino sulfonic acid, the generated tail gas is transported through the gas inlet pipe 2a, and when the tail gas is transported to the top end of the gas inlet pipe 2a, it will push the blade 6 to rotate, and then drive the rotating rod 2c and the first spray pipe 4a to rotate. After that, the tail gas enters the tank body 1 through the gas outlet hole 7 at the top of the gas inlet pipe 2a, and at this time, the spraying ammonia water is transported to the first spray pipe 4a through a special conveying pipeline (it is necessary to explain that the pipeline for conveying ammonia water is rotatably connected with the first spray pipe 4a). After that, the ammonia water is sprayed downward from the first spray head 8 through the first spray pipe 4a and the second spray pipe 4b. Since the rotating rod 2c drives the first spray pipe 4a and the second spray pipe 4b to rotate, the first spray head 8 sprays ammonia water downward in the process of rotation, and the tail gas entering the tank body 1 is contacted, so that the first-stage treatment of the tail gas is realized. After the SO2, ammonia gas and dust in the tail gas contact with the ammonia water, the SO2 and ammonia gas are dissolved in the ammonia water, and the reaction generates ammonium sulfite, and the dust enters the bottom of the tank body 1 with the ammonia water. With the rising of the liquid level at the bottom of the tank body 1, the first floating plate 9b drives the second valve block 9a to rise, and when the second floating plate 29 rises higher than the pipe opening of the first liquid outlet pipe 3a, the first floating block is kept rotating under the driving of the second spray pipe 4b and the synchronous rod 13, pushes the dust on the liquid surface to move, so that the treatment liquid and the dust floating on the liquid surface flow out from the first liquid outlet pipe 3a into the filter cylinder 11 of the second liquid outlet pipe 3b. Through the filtration of the filter cylinder 11, the treatment liquid flows into the reflux part 14 from the third liquid outlet pipe 10, and the dust and other impurities are left in the filter cylinder 11. After a period of time, the first valve block 12 can be rotated to directly take out the filter cylinder 11 downward, and the dust in the filter cylinder 11 is treated. After the tail gas is subjected to the first-stage treatment of the first spray head 8, it continues to rise to the second spraying part 1b, the rotating scraper 34 drives the tail gas to rotate, so that the dust remaining in the tail gas is settled. At the same time, since the second spraying part 1b is in the shape of a bucket with a narrow top, the dust remaining in the tail gas is also adsorbed on the inner wall of the second spraying part 1b. After that, when the air pressure in the first spraying part 1a continues to increase, the plug plate 21 is pushed to rise, so that the treatment liquid accumulated in the third spraying part 1c flows into the second filler layer 25 and can be contacted with the tail gas passing through the second filler layer 25. The liquid flowing out of the second filler layer 25 can wash down the dust adsorbed on the bottom of the second filler layer 25 and the dust adsorbed on the inner wall of the second spraying part 1b, so as to realize the second-stage treatment of the residual sulfur dioxide, ammonia gas and dust in the tail gas. After that, the tail gas entering the third spraying part 1c continues to move upward to the first filler layer 19, and the tail gas is contacted with the treatment liquid again to realize the third-stage treatment of the residual sulfur dioxide, ammonia gas and other substances in the tail gas. After the three-stage treatment, the tail gas can enter the subsequent equipment from the exhaust pipe 5 for adsorption treatment of nitrogen oxides in the tail gas.By setting the rotating rod 2c, the blade 6, etc., the rotating rod 2c can be pushed to rotate in the process of the tail gas entering the tank body 1, thereby driving the first spray pipe 4a and the second spray pipe 4b to rotate, so that the first spray head 8 sprays downward in the process of rotation, greatly increasing the spraying range of the first spray head 8. At the same time, the tail gas is discharged from the top of the inlet pipe 2a along the horizontal direction through the rotating blade 6, which can also prolong the time of the tail gas in contact with the ammonia water in the tank body 1, ensure that the tail gas entering the tank body 1 from the inlet pipe 2a can fully contact with the ammonia water, so that SO2 and ammonia gas can be fully dissolved in the ammonia water, and dust can be adsorbed and removed, thereby improving the treatment efficiency of the tail gas.

[0049] By setting the first floating plate 9b, the ammonia water sprayed by the first spray head 8 contacts the tail gas and flows to the bottom of the tank body 1. As the liquid level at the bottom of the tank body 1 rises, the first floating plate 9b also pushes the second valve block 9a to rise. When the second valve block 9a rises to a certain height, the first liquid outlet pipe 3a is opened, and the liquid in the tank body 1 flows out from the first liquid outlet pipe 3a. Since the dust is lighter in weight, it floats on the liquid surface, so the dust will flow out from the first liquid outlet pipe 3a along with the liquid when the first liquid outlet pipe 3a is opened. By setting the first floating plate 9b and the second valve block 9a, the height of the second valve block 9a changes with the liquid level, automatically discharging the liquid and the dust without manual operation, which is more convenient and efficient, and can also avoid the liquid level in the tank body 1 being too high to affect the normal passage of the tail gas.

[0050] By setting the synchronous rod 13, the second spray pipe 4b drives the first floating plate 9b to rotate through the synchronous rod 13 when it rotates. On the one hand, the first floating plate 9b can drive the gas at the bottom of the tank body 1 to flow during rotation, facilitating the contact between the entering tail gas and the spraying liquid. On the other hand, when the liquid level rises to the opening of the first liquid outlet pipe 3a, the rotation of the first floating plate 9b on the liquid surface can push the dust on the liquid surface to move, facilitating the dust on the liquid surface to be discharged from the first liquid outlet pipe 3a along with the liquid more quickly, thereby improving the treatment efficiency of the dust.

[0051] The liquid filtered by the filter cartridge 11 in the tank body 1 enters the reflux part 14 from the third liquid outlet pipe 10 (it should be noted that the liquid after the first treatment of the tail gas is partially converted into ammonium sulfite, and the concentration of ammonia water is reduced, and the absorption capacity of ammonia gas is increased, so it can be used for secondary absorption of the tail gas), and then the liquid in the reflux part 14 is transported to the third spray pipe 17 by the action of the water pump 16 through the reflux pipe 15, and finally sprayed downward from the second spray head 18. Part of the sprayed liquid is distributed in the first filler layer 19, which can be in contact with the tail gas sprayed by the first spray head 8 again to dissolve and absorb sulfur dioxide and ammonia gas in the tail gas. Therefore, by providing the reflux pipe 15 and the like, on the one hand, the liquid after the first treatment can be used to treat the tail gas, ensuring that the sulfur dioxide and ammonia gas in the tail gas are completely absorbed and dissolved. On the other hand, by using the treated liquid twice, the absorption capacity of ammonia gas can be increased, and the cost of tail gas treatment can be reduced. By providing the first filler layer 19, the contact time of the treated liquid and the tail gas is increased, ensuring that the sulfur dioxide and ammonia gas in the tail gas can be completely absorbed and dissolved.

[0052] By providing the second spray part 1b, the third spray part 1c and the like, when the air pressure in the first spray part 1a is small, the plug plate 21 is located in the fifth spray part 20, so that the second spray part 1b and the third spray part 1c are in a relatively isolated state. Therefore, the treated liquid sprayed from the second spray head 18 will accumulate in the third spray part 1c. Then, as the air pressure in the first spray part 1a rises, the plug plate 21 is pushed upward, so that the plug plate 21 moves to the third spray part 1c. The liquid in the third spray part 1c will flow downward from the gap between the plug plate 21 and the fifth spray part 20, contact the tail gas in the fifth spray part 20, dissolve and absorb ammonia gas and residual sulfur dioxide in the tail gas, and then the tail gas enters the fourth spray part 1d and contacts the liquid in the first filler layer 19 to treat the tail gas again. Therefore, by providing the second spray part 1b and the third spray part 1c in the shape of a bucket, the diameter of the fifth spray part 20 can be narrowed. On the one hand, the plug plate 21 can isolate the second spray part 1b and the third spray part 1c, so that the air pressure in the first spray part 1a can be increased to accelerate the downward settling of dust in the air, and the liquid at the bottom of the tank body 1 can be pressed to accelerate the discharge of the liquid. On the other hand, a part of the treated liquid can accumulate in the third spray part 1c, so that the treated liquid can fully contact the tail gas in the fifth spray part 20 under the action of the air pressure, further ensuring that the sulfur dioxide and ammonia gas in the tail gas can be completely treated, and improving the treatment capacity of the device for the tail gas.

[0053] By setting the second filler layer 25, when the plug plate 21 is pushed upward to the second filler layer 25 into the third spraying part 1c under the action of the pressure of the tail gas in the first spraying part 1a, the liquid accumulated in the third spraying part 1c quickly fills in the second filler layer 25 and contacts the tail gas, and the subsequent tail gas passing through the second filler layer 25 will contact the liquid in the second filler layer 25, further absorbing and dissolving sulfur dioxide and ammonia gas in the tail gas. At the same time, the second filler layer 25 is matched with the second spraying part 1b in the shape of a bucket, so that a part of the dust remaining in the tail gas is adsorbed on the inner wall of the second spraying part 1b during upward movement, and a part of the dust is adsorbed on the second filler layer 25 by the blockage of the second filler layer 25, and is then washed down by the treatment liquid passing through the second filler layer 25. In addition, the treatment liquid passing through the second filler layer 25 from top to bottom is divided into a plurality of small droplets, most of which flow downward along the inner wall of the second spraying part 1b, so as to wash the dust adsorbed on the inner wall of the second spraying part 1b down, thereby realizing automatic cleaning of the inner wall of the tank body 1. As described above, the setting of the second filler layer 25 not only further realizes complete adsorption and dissolution of sulfur dioxide and other gases in the tail gas, but also avoids the passage of dust through the fifth spraying part 20, and realizes automatic cleaning of the inner wall of the second spraying part 1b.

[0054] By setting the second floating plate 29, the third valve block 27, etc., under the continuous spraying of the first spraying head 8, even if the water pump 16 sucks the water in the return part 14, the water level in the return part 14 will continue to rise, driving the second floating plate 29, the lifting rod 28 and the third valve block 27, etc. to rise. When the third valve rises to separate from the first liquid discharge pipe 26, the liquid in the return part 14 is discharged from the first liquid discharge pipe 26, so as to timely discharge the liquid in the return part 14, avoiding the accumulation of liquid in the return part 14, which causes the liquid in the tank body 1 to be unable to be normally discharged.

[0055] By setting the liquid discharge hole 30 and the fourth valve block 31, when the liquid surface in the return part 14 rises to the opening of the first liquid discharge pipe 26, the fourth valve block 31 is still engaged with the liquid discharge hole 30. After the tail gas treatment is completed, the driving cylinder 32 is opened, the pushing rod 33 is driven to rise and push the second valve block 9a to adhere to the top of the return part 14. At this time, the liquid discharge hole 30 and the first liquid discharge pipe 26 are in the open state, so as to make the part of the treatment liquid remaining in the tank body 1 and the return part 14 flow out from the first liquid discharge pipe 26, facilitating the subsequent continuous tail gas treatment.

[0056] By setting scraper 34, when the first float 9b rises to the point where scraper 34 touches the inner wall of the second spray section 1b and can no longer rise, the first outlet pipe 3a is in the open state, and the treatment liquid in the tank 1 is discharged from the first outlet pipe 3a. At this time, the synchronizing rod 13 still drives scraper 34 and the first float 9b to rotate. During the rotation of scraper 34, the liquid and dust adsorbed on the inner wall of the second spray section 1b can be scraped off, thereby cleaning the second spray section 1b. When there is a certain distance between the first float 9b and the inner wall of the second spray section 1b, the rotating scraper 34 can agitate the exhaust gas located in the second spray section 1b, causing some of the dust remaining in the exhaust gas to settle, and also causing the exhaust gas to form a spiral airflow, generating downward movement, and contacting the ammonia water sprayed by the first spray pipe 4a, thus prolonging the interaction time between the exhaust gas and the treatment liquid.

[0057] By setting the first magnetic block 35, when the liquid level in the tank 1 is low, the mutual attraction between the first magnetic block 35 and the second magnetic block 36 ensures that the second valve block 9a can fit against the opening of the first outlet pipe 3a, thereby ensuring the closed state of the first outlet pipe 3a and realizing the positioning of the second valve block 9a.

[0058] Example 2: This invention provides a tail gas dissolution and dust removal device for aminosulfonic acid production, such as... Figure 6 As shown, the difference from Embodiment 1 is that the top end of the first spray pipe 4a is provided with a first rotating wheel 37, the top end of the tank body 1 is rotatably provided with a second rotating wheel 38, a synchronous belt 39 is provided between the first rotating wheel 37 and the second rotating wheel 38, and a drive motor 40 for driving the second rotating wheel 38 to rotate is provided on the top of the tank body 1.

[0059] By setting up the first rotating wheel 37, the second rotating wheel 38, etc., when the exhaust gas flow rate is small, the drive motor 40 is turned on to drive the second rotating wheel 38, the first rotating wheel 37 and the first spray pipe 4a to rotate, which in turn drives the rotating rod 2c and the second spray pipe 4b to rotate. This ensures that even when the exhaust gas flow rate is small, the second spray pipe 4b and the first float plate 9b can be driven to rotate normally. At the same time, the rotation of the blades 6 on the rotating rod 2c can promote the exhaust gas in the intake pipe 2a to be discharged from the exhaust port 7.

[0060] It should be noted that the various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. Similar or identical parts between embodiments can be referred to mutually. The accompanying drawings only represent the positions and connections between the various parts of the invention and do not represent actual product proportions.

[0061] The above description is only the description of the preferred embodiments of the present application, and is not any limitation on the scope of the present application. Any change and modification made by the person skilled in the art according to the above disclosure is within the protection scope of the claims.

Claims

1. A tail gas dissolution and dust removal device for aminosulfonic acid production, characterized in that: The utility model provides a dust removal device, including the jar body (1), set up on the jar body (1) air intake mechanism (2), dust removal mechanism (3) and primary spray mechanism (4), the top of jar body (1) is connected with and is provided with the exhaust pipe (5), air intake mechanism (2) includes the air inlet pipe (2a) of setting up in the vertical upward direction the bottom of jar body (1), the baffle (2b) of setting up the top end of air inlet pipe (2a) and the rotating rod (2c) of setting up in the vertical direction rotating baffle (2b) on, rotating rod (2c) is provided with the vane (6), the vane (6) is located the top of air inlet pipe (2a), the top of air inlet pipe (2a) is evenly provided with the air outlet (7), primary spray mechanism (4) includes the first spray pipe (4a) of setting up in the top of jar body (1) and the second spray pipe (4b) of setting up in the bottom of first spray pipe (4a) along the horizontal direction symmetry communication, the second spray pipe (4b) is evenly provided with a plurality of first spray head (8) along the vertical downward direction on, the top end of rotating rod (2c) is fixedly connected with the bottom end of first spray pipe (4a), dust removal mechanism (3) includes the first liquid outlet pipe (3a) of setting up on jar body (1) along the horizontal direction symmetry communication and the second liquid outlet pipe (3b) of setting up with the end of first liquid outlet pipe (3a) communication along the vertical direction, the first liquid outlet pipe (3a) is close to the one end of jar body (1) with the bottom of jar body (1) between with the set distance, the first liquid outlet pipe (3a) is close to the one end of jar body (1) the horizontal plane where the first liquid outlet pipe (3a) is located is lower than the horizontal plane where the air outlet (7) is located, be provided with control mechanism (9) in jar body (1) for controlling the opening and closing of first liquid outlet pipe (3a), the bottom of second liquid outlet pipe (3b) is provided with third liquid outlet pipe (10) along the horizontal direction, be provided with the filter cylinder (11) of cylinder in second liquid outlet pipe (3b), the bottom end of second liquid outlet pipe (3b) is provided with the first valve block (12) of screw connection.

2. The off-gas dissolving and dust removing device for the production of aminosulfonic acid according to claim 1, characterized in that: The control mechanism (9) includes a circular ring-shaped second valve block (9a) that is slidably arranged on the inner wall of the jar body (1) along the vertical direction, and a first floating plate (9b) that is horizontally arranged at the bottom end of the second valve block (9a).

3. The tail gas dissolving and dedusting device for producing aminosulfonic acid according to claim 2, characterized in that: The first floating plate (9b) can rotate around the air inlet pipe (2a), one end of the first floating plate (9b) is rotationally connected with the bottom of the second valve block (9a), the other end of the first floating plate (9b) is rotationally connected with the outer wall of the air inlet pipe (2a), a synchronous rod (13) is vertically arranged at the top end of the first floating plate (9b), the synchronous rod (13) movably passes through the second spray pipe (4b).

4. The tail gas dissolving and dedusting device for producing aminosulfonic acid according to claim 3, characterized in that: The bottom of the tank body (1) is provided with a cylindrical reflux part (14), one end of the third liquid outlet pipe (10) away from the second liquid outlet pipe (3b) communicates with the reflux part (14), the outer wall of the reflux part (14) is symmetrically provided with a reflux pipe (15), the reflux pipe (15) is provided with a water pump (16), the top of the reflux pipe (15) is provided with a third spray pipe (17) in the horizontal direction, the third spray pipe (17) penetrates the top of the tank body (1), the end of the third spray pipe (17) is provided with a second spray head (18) in the vertically downward direction, the tank body (1) is horizontally provided with a first filler layer (19), the first filler layer (19) is located between the second spray head (18) and the second spray pipe (4b).

5. The tail gas dissolving and dust removing device for producing aminosulfonic acid according to claim 4, characterized in that: The tank body (1) sequentially comprises a cylindrical first spray part (1a), a bucket-shaped second spray part (1b), a bucket-shaped third spray part (1c) and a cylindrical fourth spray part (1d) from bottom to top, the cross-sectional area of the top end of the second spray part (1b) is smaller than that of the bottom end of the second spray part (1b), the cross-sectional area of the top end of the third spray part (1c) is larger than that of the bottom end of the third spray part (1c), the second spray head (18) and the first filler layer (19) are located in the fourth spray part (1d), a fifth spray part (20) is provided between the second spray part (1b) and the third spray part (1c) in the vertical direction, a shutter plate (21) is movably arranged in the fifth spray part (20), a circular ring-shaped first push plate (22) is horizontally arranged on the outer wall of the first spray pipe (4a), the first push plate (22) is located directly above the shutter plate (21), a circular ring-shaped second push plate (23) is rotatably arranged at the bottom of the first push plate (22), a reset spring (24) is arranged between the second push plate (23) and the shutter plate (21), the first spray pipe (4a) movably penetrates the reset spring (24) and the shutter plate (21), when the reset spring (24) is in the original length, the shutter plate (21) is located in the fifth spray part (20).

6. The tail gas dissolving and dedusting device for producing aminosulfonic acid according to claim 5, characterized in that: The bottom of the shutter plate (21) is provided with a second filler layer (25), the second filler layer (25) is movably attached to the inner wall of the fifth spray part (20), and the first spray pipe (4a) movably penetrates the second filler layer (25).

7. The tail gas dissolving and dedusting device for producing aminosulfonic acid according to claim 4, characterized in that: The bottom of the reflux part (14) is provided with a first liquid discharge pipe (26), a third valve block (27) is movably arranged in the first liquid discharge pipe (26), the top end of the third valve block (27) is provided with a lifting rod (28) in the vertical direction, the outer wall of the air inlet pipe (2a) is slidably provided with a second floating plate (29) in the vertical direction, the second floating plate (29) is located in the reflux part (14), the second floating plate (29) is fixedly connected with the lifting rod (28), and the second floating plate (29) and the third valve block (27) have a set distance.

8. The tail gas dissolving and dedusting device for producing aminosulfonic acid according to claim 7, characterized in that: The bottom end of the tank body (1) is provided with a liquid discharge hole (30) communicated with the reflux part (14), the top of the lifting rod (28) is provided with a fourth valve block (31) matched with the liquid discharge hole (30), the outer wall of the reflux part (14) is vertically provided with a driving air cylinder (32), the driving air cylinder (32) is vertically provided with a pushing rod (33), the pushing rod (33) movably passes through the reflux part (14), and the top of the pushing rod (33) movably abuts against the bottom of the second floating plate (29).

9. The tail gas dissolving and dust removing device for producing aminosulfonic acid according to claim 5, characterized in that: The top of the synchronous rod (13) is provided with a scraper (34) movably abutting against the inner wall of the second spraying part (1b), when the scraper (34) abuts against the inner wall of the second spraying part (1b), the horizontal plane where the first floating plate (9b) is located is higher than the horizontal plane where the end of the first liquid outlet pipe (3a) is located.

10. The tail gas dissolving and dedusting device for producing aminosulfonic acid according to claim 9, characterized in that: The bottom of the second valve block (9a) is provided with a circular ring-shaped first magnetic block (35), the bottom of the tank body (1) is provided with a circular ring-shaped second magnetic block (36) matched with the first magnetic block (35), when the first magnetic block (35) abuts against the second magnetic block (36), the scraper (34) and the second spraying pipe (4b) have a set distance.

Images