Tail gas treatment device for magnesium sulfate reaction kettle

Abstract

The utility model discloses a tail gas treatment device for a magnesium sulfate reaction kettle, and relates to the technical field of tail gas treatment. The device comprises a treatment tank, an air inlet assembly is arranged at the bottom of the treatment tank, and an exhaust assembly is further arranged at the top of the treatment tank; a gas inlet box in the gas inlet assembly is located on one side of the bottom of the treatment tank, and the bottom of the gas inlet box is fixedly connected with a gas inlet pipe. The U-shaped frame and the movable plate are connected through the electromagnet, so that the rotating block is clamped in the U-shaped frame through the movable plate, the box cover is fixed to the air inlet box, and the problem that in the prior art, regular overhaul and maintenance of air inlet structures such as fan blades are inconvenient is solved; the treated tail gas in the exhaust box is detected through the sensor probe on the L-shaped plate, and the tail gas which does not meet the standard is conveyed into the treatment tank again through the return pipe for secondary treatment, so that the problem that the treated tail gas is inconvenient to detect and secondarily treat in the prior art is solved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to tail gas treatment technical field, especially relate to a tail gas treatment device for magnesium sulfate reaction kettle. BACKGROUND

[0002] Magnesium sulfate is a commonly used chemical reagent and drying reagent, which is colorless or white crystal or powder. Magnesium sulfate is usually prepared by adding sulfuric acid to decompose or neutralize magnesium oxide, magnesium hydroxide, magnesium carbonate, and magnesite. During the preparation of magnesium sulfate, a large amount of waste gas containing sulfur trioxide and sulfur dioxide is generated. In order to avoid pollution of the environment by these waste gases, a tail gas treatment device is usually installed on the magnesium sulfate reaction kettle to harmless treat the waste gas generated during the preparation of magnesium sulfate.

[0003] The file with the publication number CN221062229U discloses a kind of tail gas treatment device for aluminium sulfate reaction kettle, including gas collecting tank, both ends of gas collecting tank are fixed with first connecting pipe and second connecting pipe, the one end of first connecting pipe is fixedly installed with interface, second connecting pipe is fixedly connected with cooling box, the top surface of cooling box is fixed with storage tank, the top of storage tank is equipped with upper water pipeline, one end of upper water pipeline is fixedly connected with spray head, the lower end surface of upper water pipeline is fixedly installed with water valve switch, the one end of cooling box away from second connecting pipe is fixed with first pipeline, one end of first pipeline is fixedly connected with water storage tank, the upper surface of water storage tank is fixedly connected with second pipeline, one end of second pipeline is fixedly connected with exhaust fan.

[0004] However, it still has the following disadvantages in actual use:

[0005] The tail gas treatment device described above has first connecting pipe and second connecting pipe fixed on both ends of the gas collecting tank, and a fan is clamped on the inner wall of the gas collecting tank. The fan guides the tail gas in the reaction kettle into the gas collecting tank. However, during use, the fan inside the gas collecting tank is easily damaged due to the presence of corrosive substances such as sulfur dioxide and sulfur trioxide in the tail gas. In addition, since the fan is located inside the gas collecting tank, it is inconvenient to perform regular maintenance.

[0006] The tail gas treatment device described above has a water storage tank connected to the cooling box through a first pipeline, and an exhaust fan connected to the outer surface of the water storage tank through a second pipeline. The water storage tank is provided with alkaline substances through the storage tank and the spray head, thereby realizing neutralization reaction of acidic substances such as sulfur dioxide and sulfur trioxide in the tail gas. However, the device lacks a structure for detecting the tail gas after neutralization reaction, which may result in excessive content of acidic substances such as sulfur dioxide and sulfur trioxide in the tail gas due to incomplete neutralization reaction.

[0007] To this end, we provide a magnesium sulfate reactor exhaust treatment device, to solve the above problems. The utility model discloses a magnesium sulfate reactor exhaust treatment device

[0008] The utility model discloses a magnesium sulfate reactor exhaust treatment device, which is connected between the U-shaped frame and the movable plate through an electromagnet, so that the rotating block is clamped in the inside of the U-shaped frame through the movable plate, the box cover is fixed on the air inlet tank, the problem that the existing fan blade and other air inlet structures are not convenient to maintain regularly is solved, the treated exhaust gas in the exhaust tank is detected through the sensor probe on the L-shaped plate, and the exhaust gas that does not meet the standard is transported to the treatment tank again through the reflux pipe for secondary treatment, so that the problem that the treated exhaust gas is not convenient to detect and treat again is solved.

[0009] To solve the above technical problems, the utility model is realized through the following technical schemes:

[0010] The utility model discloses a magnesium sulfate reactor exhaust treatment device, which is connected between the U-shaped frame and the movable plate through an electromagnet, so that the rotating block is clamped in the inside of the U-shaped frame through the movable plate, the box cover is fixed on the air inlet tank, the problem that the existing fan blade and other air inlet structures are not convenient to maintain regularly is solved, the treated exhaust gas in the exhaust tank is detected through the sensor probe on the L-shaped plate, and the exhaust gas that does not meet the standard is transported to the treatment tank again through the reflux pipe for secondary treatment, so that the problem that the treated exhaust gas is not convenient to detect and treat again is solved.

[0011] The air inlet tank in the air inlet assembly is located at one side of the bottom of the treatment tank, the bottom of the air inlet tank is fixedly connected with an air inlet pipe, one side of the air inlet tank is fixedly connected with an annular pipe, the annular pipe is located below the outside of the treatment tank, the side, away from the treatment tank, of the air inlet tank is clamped with a tank cover, the side, away from the air inlet tank, of the tank cover is fixedly connected with a driving motor through a motor bracket, a fan blade is sleeved on the output shaft of the driving motor, the fan blade is located in the inside of the air inlet tank, the front and rear end faces of the tank cover are rotatably connected with rotating blocks, the top of the rotating blocks is provided with mounting holes, the front and rear end faces of the air inlet tank are fixedly connected with U-shaped frames, the top of the U-shaped frames is fixedly connected with electromagnets, the top of the U-shaped frames is magnetically connected with movable plates, the front and rear ends of the lower surface of the movable plates are welded with mounting columns, the bottom of the mounting columns is movably penetrated through the top of the U-shaped frames and is gap-fit in the inside of the mounting holes.

[0012] The exhaust tank in the exhaust assembly is fixedly connected above the treatment tank, the upper sides of the outer walls of the two sides of the exhaust tank are fixedly connected with an exhaust pipe and a reflux pipe respectively, the end, away from the exhaust tank, of the exhaust pipe is fixedly connected with a first electromagnetic valve, the end, away from the exhaust tank, of the reflux pipe is fixedly connected with a second connecting pipe through a second electromagnetic valve, a sleeve rod is penetrated through the top of the exhaust tank, a threaded rod is threadedly sleeved in the inside of the sleeve rod, the top of the threaded rod is fixedly connected with a handle, the bottom of the threaded rod is fixedly connected with a movable block, the movable block is fixedly connected with L-shaped plates around, and the lower surfaces of the L-shaped plates are fixedly connected with sensor probes.

[0013] The utility model discloses further provide: the top of processing jar is penetrated with the air outlet pipe, and the top of air outlet pipe is fixedly connected in the bottom of exhaust tank, and the bottom of processing jar is penetrated with the blowdown pipe, and the bottom of blowdown pipe is fixedly connected with blowdown valve, and the inside of processing jar is provided with the filler in upper and lower sides, and the upper side of filler is fixedly connected with the spray pipe.

[0014] The utility model discloses further provide: one end of spray pipe penetrates the one side outer wall of processing jar and is fixedly connected with the water segregator, and the one end of water segregator is fixedly connected with the feed pipe, and the front and back end of spray pipe is fixedly connected with a plurality of branch pipes along the axial direction of spray pipe, and the bottom of branch pipe is fixedly connected with the shower head.

[0015] The utility model discloses further provide: one side of annular pipe is fixedly connected with the first connecting pipe, and the one end of first connecting pipe is fixedly connected with the feed tank, and the inside of annular pipe is circular array fixedly connected with a plurality of gas conveying pipes, and the one end of gas conveying pipe is fixedly connected with the outer wall of processing jar and extends to the inside below processing jar.

[0016] The utility model discloses further provide: the outer wall of lid is set with the positioning hole all around, and the inside of a plurality of positioning holes is matched with the positioning column, and the one end of a plurality of positioning columns is welded in the outer wall all around of the one side of feed tank far from processing jar.

[0017] The utility model discloses further provide: the one side outer wall of lid near feed tank is welded with the clamping block, and the outside of clamping block is bonded with the sealing ring, and the outside surface of sealing ring is connected on the inner wall of feed tank.

[0018] The utility model discloses further provide: the top of feed tank is fixedly connected with the mounting plate, and the surface of mounting plate is fixedly connected with the movable link all around, and the bottom of movable link is welded on the upper surface of movable plate, and the top of movable link is fixedly connected with the limit nut, and the outside of movable link is sleeved with the reset spring, and the both ends of reset spring are fixedly connected with the upper surface of movable plate and the lower surface of mounting plate.

[0019] The utility model discloses further provide: the outer wall all around of movable block is fixedly connected with the connecting rod, and the one end of connecting rod is fixedly connected on the vertical supporting arm of L type board far from movable block.

[0020] The utility model discloses further provide: the front end surface below of exhaust tank is sealed and is connected with the front cover plate, and the end surface on the inside of exhaust tank is fixedly connected with a plurality of water absorbing plates along vertical equal interval, and the surface of water absorbing plate is evenly set with the air hole.

[0021] The utility model discloses further provide: the front end surface below of exhaust tank is sealed and is connected with the front cover plate, and the end surface on the inside of exhaust tank is fixedly connected with a plurality of water absorbing plates along vertical equal interval, and the surface of water absorbing plate is evenly set with the air hole.

[0022] The utility model discloses a set up air intake assembly, and the box cover is clamped on the air intake tank through the positioning hole and the positioning column, and external force is applied to the rotating block, so that the rotating block rotates to the inside of the U type frame, and the power of the electromagnet is connected, so that the electromagnet generates the magnetic field, and the movable plate is connected through the electromagnet, so that the movable plate moves downward, so that the mounting column gap on the movable plate is matched in the mounting hole of the top of the rotating block, realizes the fixing of the box cover, and then realizes the installation of the fan blade in the air intake tank, and the installation of the fan blade and other air intake structures is facilitated, and the fan blade and other air intake structures are conveniently overhauled and maintained.

[0023] The utility model discloses a set up exhaust component, and the sensor probe is connected with sulfur dioxide sensor, sulfur trioxide sensor and other sensors through the wire, and the treated tail gas in the exhaust tank is detected through the sensor probe, when the tail gas in the exhaust tank does not meet the discharge standard, closes the first electromagnetic valve and opens the second electromagnetic valve, and the tail gas in the exhaust tank is then returned to the processing tank through the reflux pipe and the second connecting pipe and is treated secondly, when the tail gas in the exhaust tank meets the discharge standard, closes the second electromagnetic valve and opens the first electromagnetic valve, and the tail gas in the exhaust tank is then discharged through the exhaust pipe, and the treated tail gas is conveniently detected, and the tail gas not meeting the discharge standard is detected and treated secondly, and the tail gas treatment effect in the magnesium sulfate reaction kettle is improved.

[0024] Of course, implementing any product of the utility model does not necessarily need to achieve all the advantages mentioned above. BRIEF DESCRIPTION OF DRAWINGS

[0025] In order to more clearly illustrate the technical scheme of the embodiment of the utility model, the following will be to the embodiment description needed to use the drawing briefly introduced, obviously, the following description in the drawing is only some embodiments of the utility model, for those skilled in the art, under the premise of not paying the creative labor, can also obtain other drawings according to these drawings.

[0026] Figure 1 It is the whole structure schematic diagram of a magnesium sulfate reaction kettle tail gas treatment device;

[0027] Figure 2 It is the front view of the processing tank of the utility model;

[0028] Figure 3 It is the structure schematic diagram of the spray pipe of the utility model;

[0029] Figure 4 It is the structure schematic diagram of the air intake assembly of the utility model;

[0030] Figure 5 It is the structure schematic diagram of the air intake tank of the utility model;

[0031] Figure 6 It is the structure exploded view of the box cover of the utility model;

[0032] Figure 7 It is the installation schematic view between the U-shaped frame and the movable plate of the utility model;

[0033] Figure 8 It is the front view sectional view of the exhaust assembly of the utility model;

[0034] Figure 9 It is the installation schematic view between the threaded rod and the L-shaped plate of the utility model;

[0035] Figure 10 It is the structure schematic view of the water absorption plate of the utility model.

[0036] In the drawings, the component list represented by each sign is as follows:

[0037] 1-treatment tank, 101-exhaust pipe, 102-drain pipe, 102a-drain valve, 103-packing, 104-spraying pipe, 104a-water distributor, 104b-feeding pipe, 104c-branch pipe, 104d-spraying head, 2-air inlet assembly, 201-air inlet tank, 201a-positioning column, 202-air inlet pipe, 203-annular pipe, 203a-first connecting pipe, 203b-gas conveying pipe, 204-tank cover, 204a-positioning hole, 204b-clamping block, 204c-sealing ring, 204d-rotating block, 204e-mounting hole, 205-fan blade, 205a-motor bracket, 205b-driving motor, 206-U-shaped frame, 206a-electromagnet, 207-movable plate, 207a-mounting column, 207b-mounting plate, 207c-movable rod, 207d-limiting nut, 207e-return spring, 3-exhaust assembly, 301-exhaust tank, 302-exhaust pipe, 302a-first electromagnetic valve, 303-backflow pipe, 303a-second electromagnetic valve, 304-second connecting pipe, 305-threaded rod, 305a-sleeve rod, 305b-handle, 305c-movable block, 306-L-shaped plate, 306a-sensor probe, 306b-connecting rod, 307-water absorption plate, 307a-front cover plate, 307b-vent hole. DETAILED DESCRIPTION

[0038] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0039] Embodiment 1

[0040] Referring to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 shown, a first embodiment of the present application provides a tail gas treatment device for magnesium sulfate reaction kettle, including processing tank 1, the bottom of processing tank 1 is provided with air inlet assembly 2, air inlet assembly 2 includes air inlet box 201, annular pipe 203, air inlet pipe 202, box cover 204, fan blade 205, U-shaped frame 206 and movable plate 207, movable plate 207 is connected between box cover 204 and U-shaped frame 206, so that fan blade 205 is installed in the inside of air inlet box 201 through box cover 204, solve the existing problem of not being convenient for regular maintenance of fan blade 205 and other air inlet structures.

[0041] Specifically, the air inlet box 201 is located at one side of the bottom of the treatment tank 1, the bottom of the air inlet box 201 is fixedly connected with an air inlet pipe 202, one side of the air inlet box 201 is fixedly connected with an annular pipe 203, the annular pipe 203 is located below the outside of the treatment tank 1, the side of the air inlet box 201 away from the treatment tank 1 is clamped with a box cover 204, the side wall of the side of the box cover 204 away from the air inlet box 201 is fixedly connected with a driving motor 205b through a motor bracket 205a, a fan blade 205 is sleeved on the output shaft of the driving motor 205b, the fan blade 205 is located in the inside of the air inlet box 201, the front and rear end faces of the box cover 204 are both rotatably connected with a rotating block 204d, the top of the two sides of the rotating block 204d is provided with a mounting hole 204e, the front and rear end faces of the air inlet box 201 are both fixedly connected with a U-shaped frame 206, the top of the U-shaped frame 206 is fixedly connected with an electromagnet 206a, the upper surface of the U-shaped frame 206 is magnetically connected with a movable plate 207, the front and rear ends of the lower surface of the movable plate 207 are both welded with a mounting column 207a, the bottom end of the mounting column 207a is movably penetrated through the top of the U-shaped frame 206 and is gap-fitted in the inside of the mounting hole 204e, the air inlet box 201 and the annular pipe 203 are arranged to transport the tail gas in the magnesium sulfate reaction kettle into the treatment tank 1, the air inlet pipe 202 is arranged to transport the tail gas in the magnesium sulfate reaction kettle into the air inlet box 201, the box cover 204 is arranged to close the inside of the air inlet box 201 and to install the fan blade 205, the rotating block 204d is arranged to fix the box cover 204, the mounting hole 204e and the mounting column 207a are arranged to fix the rotating block 204d in the inside of the U-shaped frame 206, the fan blade 205 is arranged to guide the gas in the air inlet box 201 into the treatment tank 1, the motor bracket 205a is arranged to install the driving motor 205b, the driving motor 205b is arranged to drive the fan blade 205 to rotate, the U-shaped frame 206 is arranged to fix the box cover 204 on the air inlet box 201, the electromagnet 206a is arranged to magnetically connect the movable plate 207 on the U-shaped frame 206, and the movable plate 207 is arranged to drive the mounting column 207a to move.

[0042] Further, the top of the treatment tank 1 is penetrated through with an air outlet pipe 101, the bottom of the treatment tank 1 is penetrated through with a blowdown pipe 102, the bottom end of the blowdown pipe 102 is fixedly connected with a blowdown valve 102a, the inside of the treatment tank 1 is provided with a filler 103 above and below, and the upper surface of the filler 103 is fixedly connected with a spray pipe 104;

[0043] One end of the spray pipe 104 is penetrated through the side wall of the treatment tank 1 and is fixedly connected with a water distributor 104a, the end of the water distributor 104a away from the spray pipe 104 is fixedly connected with a feed pipe 104b, the front and rear ends of the spray pipe 104 are fixedly connected with a plurality of branch pipes 104c along the axial direction of the spray pipe 104 at equal intervals, and the bottom of the branch pipe 104c is fixedly connected with a spray head 104d.

[0044] One side of the annular pipe 203 is fixedly connected with a first connecting pipe 203a, one end of the first connecting pipe 203a away from the annular pipe 203 penetrates through one side of the outer wall of the air inlet box 201 and extends to the inside of the air inlet box 201, the inner side of the annular pipe 203 is circularly arrayed and fixedly connected with a plurality of gas conveying pipes 203b at equal intervals, one end of the gas conveying pipe 203b away from the annular pipe 203 penetrates through the outer wall of the processing tank 1 and extends to the lower part inside the processing tank 1;

[0045] The outer wall of the box cover 204 is provided with a plurality of positioning holes 204a around, the inside of the plurality of positioning holes 204a is gap-fitted with a plurality of positioning columns 201a, one end of the plurality of positioning columns 201a is respectively welded on the outer wall of the air inlet box 201 away from the processing tank 1 around;

[0046] The box cover 204 is welded with a clamping block 204b on the side of the outer wall close to the air inlet box 201, the outer side of the clamping block 204b is bonded with a sealing ring 204c, the outer side of the sealing ring 204c abuts and connects on the inner wall of the air inlet box 201;

[0047] The top of the air inlet box 201 is fixedly connected with a mounting plate 207b, the surface of the mounting plate 207b is movably penetrated through with a movable rod 207c at the front and back ends, the bottom end of the movable rod 207c is welded on the upper surface of the movable plate 207, the top end of the movable rod 207c is threadedly sleeved with a limiting nut 207d, the outer side of the movable rod 207c is sleeved with a reset spring 207e, the two ends of the reset spring 207e are respectively fixedly connected with the upper surface of the movable plate 207 and the lower surface of the mounting plate 207b.

[0048] The operation process of the embodiment is as follows: first, the box cover 204 is clamped on the air inlet box 201 through the positioning hole 204a and the positioning column 201a, and an external force is applied to the rotating block 204d, so that the rotating block 204d is rotated to the inside of the U-shaped frame 206, and the power supply of the electromagnet 206a is turned on, so that the electromagnet 206a generates a magnetic field, and the movable plate 207 is magnetically connected through the electromagnet 206a, so that the movable plate 207 moves downward, so that the mounting column 207a on the movable plate 207 is clearance fitted in the mounting hole 204e at the top of the rotating block 204d, the box cover 204 is fixed, and then the fan blade 205 is installed in the inside of the air inlet box 201, finally, the driving motor 205b is started, the output shaft of the driving motor 205b drives the fan blade 205 to rotate synchronously, and under the action of the fan blade 205, the tail gas in the magnesium sulfate reaction kettle enters the treatment tank 1 through the air inlet pipe 202, the first connecting pipe 203a, the annular pipe 203 and the gas conveying pipe 203b in turn, and the alkaline liquid is provided into the water distributor 104a through the feed pipe 104b, the alkaline liquid enters the branch pipe 104c through the spray pipe 104, and the alkaline liquid is sprayed in the treatment tank 1 through the spray head 104d, and the tail gas in the magnesium sulfate reaction kettle is treated through the alkaline liquid.

[0049] Embodiment 2

[0050] Please refer to Figure 1 、 Figure 8 、 Figure 9 and Figure 10 , which is the second embodiment of the utility model, which is based on the previous embodiment, but differs from the previous embodiment in that: the top of the treatment tank 1 is further provided with an exhaust assembly 3, the exhaust assembly 3 comprises an exhaust box 301, an exhaust pipe 302, a reflux pipe 303, a threaded rod 305 and an L-shaped plate 306, the sensor probe 306a is installed through the L-shaped plate 306, and the gas in the exhaust box 301 is detected through the sensor probe 306a, at the same time, the gas in the exhaust box 301 that does not meet the emission standard is guided back to the treatment tank 1 for secondary treatment through the reflux pipe 303, and the problem that the treated tail gas is not convenient to detect and treat is solved.

[0051] Specifically, the exhaust tank 301 is fixedly connected to the top end of the air outlet pipe 101, and an exhaust pipe 302 and a return pipe 303 are fixedly connected to the upper part of the outer wall on both sides of the exhaust tank 301, respectively. The exhaust pipe 302 is fixedly connected to a first electromagnetic valve 302a at the end away from the exhaust tank 301, and the return pipe 303 is fixedly connected to a second connecting pipe 304 through a second electromagnetic valve 303a at the end away from the exhaust tank 301. A sleeve rod 305a penetrates the top of the exhaust tank 301, a threaded rod 305 is threadedly sleeved in the sleeve rod 305a, a handle 305b is fixedly connected to the top end of the threaded rod 305, and a movable block 305c is fixedly connected to the bottom end of the threaded rod 305. L-shaped plates 306 are fixedly connected to the periphery of the movable block 305c, sensor probes 306a are fixedly connected to the lower surfaces of the L-shaped plates 306, the exhaust tank 301 is arranged to temporarily store the treated exhaust gas, the exhaust pipe 302 and the first electromagnetic valve 302a are arranged to discharge the exhaust gas in the exhaust tank 301 that meets the standard, the return pipe 303, the second electromagnetic valve 303a and the second connecting pipe 304 are arranged to return and secondarily treat the exhaust gas in the exhaust tank 301 that does not meet the standard, the threaded rod 305 and the sleeve rod 305a are arranged to drive the movable block 305c to move, the movable block 305c is arranged to install the L-shaped plates 306, the handle 305b is arranged to facilitate the rotation of the threaded rod 305, the L-shaped plates 306 are arranged to install the sensor probes 306a, and the sensor probes 306a are arranged to detect the exhaust gas in the exhaust tank 301.

[0052] Further, a connecting rod 306b is fixedly connected to the outer wall around the movable block 305c, and the end away from the movable block 305c is fixedly connected to the vertical branch of the L-shaped plate 306.

[0053] A front cover plate 307a is sealingly connected below the front end face of the exhaust tank 301, a plurality of water absorption plates 307 are fixedly connected to the end face inside the exhaust tank 301 in vertical equal intervals, and air holes 307b are uniformly formed in the surfaces of the water absorption plates 307.

[0054] The remaining structure is the same as that of Embodiment 1.

[0055] The operation process of the embodiment is as follows: rotating the handle 305b, the handle 305b drives the threaded rod 305 to rotate synchronously, and under the action of the threaded connection between the sleeve rod 305a and the threaded rod 305, the threaded rod 305 drives the L-shaped plate 306 to move through the movable block 305c, so that the L-shaped plate 306 drives the sensor probe 306a to move to a specified position in the exhaust tank 301, then the sensor probe 306a is connected to a sulfur dioxide sensor, a sulfur trioxide sensor and the like through a wire, and the treated exhaust gas in the exhaust tank 301 is detected through the sensor probe 306a, when the exhaust gas in the exhaust tank 301 does not meet the emission standard, the first electromagnetic valve 302a is closed and the second electromagnetic valve 303a is opened, and the exhaust gas in the exhaust tank 301 is returned to the treatment tank 1 through the return pipe 303 and the second connecting pipe 304 in turn for secondary treatment, when the exhaust gas in the exhaust tank 301 meets the emission standard, the second electromagnetic valve 303a is closed and the first electromagnetic valve 302a is opened, and the exhaust gas in the exhaust tank 301 is discharged through the exhaust pipe 302.

[0056] In the description of the present specification, the description referring to the terms "one embodiment", "an example", "a specific example" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0057] The preferred embodiments of the application disclosed above are only used to help explain the application. The preferred embodiments do not describe all the details, nor limit the application to the specific embodiments described. Obviously, according to the content of the present specification, many modifications and changes can be made. The present specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the application, so that those skilled in the art can well understand and utilize the application. The application is limited by the claims and their entire scope and equivalents.

Claims

1. A tail gas treatment device for a magnesium sulfate reaction kettle, comprising a treatment tank (1), characterized in that: The bottom of the processing tank (1) is provided with an air inlet assembly (2), and the top of the processing tank (1) is further provided with an air outlet assembly (3); The air inlet box (201) in the air inlet assembly (2) is located at one side of the bottom of the processing tank (1), and the bottom of the air inlet box (201) is fixedly connected with an air inlet pipe (202); one side of the air inlet box (201) is fixedly connected with an annular pipe (203), and the annular pipe (203) is located below the outside of the processing tank (1); the side of the air inlet box (201) away from the processing tank (1) is clamped with a box cover (204), and the side wall of the side of the box cover (204) away from the air inlet box (201) is fixedly connected with a driving motor (205b) through a motor bracket (205a); the output shaft of the driving motor (205b) is sleeved with a fan blade (205), and the fan blade (205) is located in the inside of the air inlet box (201); the front and rear end faces of the box cover (204) are both rotatably connected with a rotating block (204d), and the top of the rotating block (204d) is provided with a mounting hole (204e); the front and rear end faces of the air inlet box (201) are both fixedly connected with a U-shaped frame (206), and the top of the U-shaped frame (206) is fixedly connected with an electromagnet (206a); the top of the U-shaped frame (206) is magnetically connected with a movable plate (207), and the bottom of the movable plate (207) is welded with a mounting column (207a); the bottom end of the mounting column (207a) is movably penetrated through the top of the U-shaped frame (206) and is gap-fitted in the inside of the mounting hole (204e); The air outlet box (301) in the air outlet assembly (3) is fixedly connected above the processing tank (1), and the upper sides of the outer walls of the two sides of the air outlet box (301) are respectively fixedly connected with an air outlet pipe (302) and a backflow pipe (303); the end of the air outlet pipe (302) away from the air outlet box (301) is fixedly connected with a first electromagnetic valve (302a), and the end of the backflow pipe (303) away from the air outlet box (301) is fixedly connected with a second connecting pipe (304) through a second electromagnetic valve (303a); the top of the air outlet box (301) is penetrated with a sleeve rod (305a), and the inside of the sleeve rod (305a) is threadedly sleeved with a threaded rod (305); the top end of the threaded rod (305) is fixedly connected with a handle (305b), and the bottom end of the threaded rod (305) is fixedly connected with a movable block (305c); the periphery of the movable block (305c) is fixedly connected with an L-shaped plate (306), and the lower surface of the L-shaped plate (306) is fixedly connected with a sensor probe (306a).

2. The tail gas treatment device for a magnesium sulfate reaction vessel according to claim 1, characterized by, The top of the processing tank (1) is penetrated with an air outlet pipe (101), and the top end of the air outlet pipe (101) is fixedly connected with the bottom of the air outlet box (301); the bottom of the processing tank (1) is penetrated with a blowdown pipe (102), and the bottom end of the blowdown pipe (102) is fixedly connected with a blowdown valve (102a); the inside of the processing tank (1) is provided with a filler (103) above and below, and the upper side of the filler (103) is fixedly connected with a spray pipe (104).

3. The tail gas treatment device for a magnesium sulfate reaction vessel according to claim 2, characterized by, One end of the spray pipe (104) penetrates through one side of the outer wall of the treatment tank (1) and is fixedly connected with a water distributor (104a), and the water distributor (104a) is fixedly connected with a feed pipe (104b) away from one end of the spray pipe (104), the front and rear ends of the spray pipe (104) are fixedly connected with a plurality of branch pipes (104c) at equal intervals along the axial direction of the spray pipe (104), and the bottom of the branch pipe (104c) is fixedly connected with a spray head (104d).

4. The tail gas treatment device for a magnesium sulfate reaction vessel according to claim 1, characterized by One side of the annular pipe (203) is fixedly connected with a first connecting pipe (203a), and one end of the first connecting pipe (203a) away from the annular pipe (203) penetrates through one side of the outer wall of the air inlet box (201) and extends to the inside of the air inlet box (201), and the inner side of the annular pipe (203) is fixedly connected with a plurality of gas conveying pipes (203b) at equal intervals in a circular array, and one end of the gas conveying pipe (203b) away from the annular pipe (203) penetrates through the outer wall of the treatment tank (1) and extends to the lower part inside the treatment tank (1).

5. The tail gas treatment device for a magnesium sulfate reaction vessel according to claim 1, characterized by The outer wall of the box cover (204) is provided with a plurality of positioning holes (204a), and the inner side of the positioning hole (204a) is gap-fit with a positioning column (201a), and one end of the positioning column (201a) is welded to the outer wall of the air inlet box (201) away from the treatment tank (1).

6. The tail gas treatment device for a magnesium sulfate reaction vessel according to claim 5, characterized by The box cover (204) is welded with a clamping block (204b) on the side wall of the air inlet box (201), and the outer side of the clamping block (204b) is bonded with a sealing ring (204c), and the outer side of the sealing ring (204c) is connected to the inner wall of the air inlet box (201).

7. The tail gas treatment device for a magnesium sulfate reaction vessel according to claim 1, characterized by The top of the air inlet box (201) is fixedly connected with a mounting plate (207b), and the front and rear ends of the surface of the mounting plate (207b) are movably penetrated with movable rods (207c), the bottom end of the movable rod (207c) is welded to the upper surface of the movable plate (207), and the top end of the movable rod (207c) is threaded with a limiting nut (207d), the outer side of the movable rod (207c) is sleeved with a reset spring (207e), and the two ends of the reset spring (207e) are fixedly connected with the upper surface of the movable plate (207) and the lower surface of the mounting plate (207b) respectively.

8. The tail gas treatment device for a magnesium sulfate reaction vessel according to claim 1, characterized by The outer wall of the movable block (305c) is fixedly connected with a connecting rod (306b), and one end of the connecting rod (306b) away from the movable block (305c) is fixedly connected with the vertical branch of the L-shaped plate (306).

9. The tail gas treatment device for a magnesium sulfate reaction vessel according to claim 1, characterized by The front end face of the exhaust box (301) is sealingly connected with a front cover plate (307a), and a plurality of water absorbing plates (307) are fixedly connected on the end face inside the exhaust box (301) at equal intervals in the vertical direction, and the surface of the water absorbing plate (307) is uniformly provided with air holes (307b).

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