Chemical tail gas treatment device

Abstract

The invention discloses a chemical tail gas treatment device, and relates to the technical field of chemical tail gas treatment devices.The chemical tail gas treatment device comprises a treatment box, a gas inlet pipe is fixed to the left side of the treatment box, a liquid inlet pipe is fixed to the right side of the treatment box, and an exhaust pipe is fixed to the right side of the treatment box; and a liquid discharging pipe is fixed to the right side of the treatment box, an impurity discharging opening is formed in the right side of the treatment box, and a circulating device for conducting secondary treatment on tail gas is arranged in the treatment box. When the chemical tail gas treatment device is used for treating tail gas, the motor drives the rotating shaft to rotate, so that the spoilers on the outer wall of the rotating shaft also rotate, turbulent flow is carried out above reaction liquid, and tail gas which cannot completely react due to too high rising speed when the tail gas is introduced into the reaction liquid is scattered, so that the tail gas is more uniformly distributed above the liquid level; the local concentration is prevented from being too high or lower, and the problem that the tail gas treatment effect difference is large is solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of chemical tail gas treatment device, in particular to a chemical tail gas treatment device. BACKGROUND

[0002] A large amount of tail gas will be produced in the process of chemical production (such as petrochemical, coal chemical industry, fine chemical industry, etc.), and if these pollutants are directly discharged, it will cause environmental problems such as acid rain, haze, ozone layer destruction, etc., and harm human health, therefore, before tail gas is discharged, it must be treated first.

[0003] The patent announcement No. CN215842453U is a kind of chemical tail gas treatment device, including tail gas treatment box, tail gas inlet pipe, top cover, first liquid inlet pipe and gas outlet pipe, the tail gas treatment box one side is communicated with tail gas inlet pipe, the tail gas treatment box top is fixed with top cover, the top cover top is communicated with gas outlet pipe, the tail gas treatment box one side is communicated with first liquid inlet pipe, the tail gas treatment box one side is communicated with tail gas inlet pipe, the tail gas inlet pipe one end is communicated with inlet pipe, the inlet pipe shaft body is communicated with a plurality of inlet pipe branch;However, the above-mentioned chemical tail gas treatment device does not set a special spoiler, the tail gas is slow in the air due to density and other reasons, in the cold environment, the tail gas is easy to accumulate in one place after being introduced into the treatment box, thereby causing large local concentration difference of tail gas, and the spraying treatment method can only react with a small part of the tail gas accumulated together, thereby affecting the treatment effect of tail gas. SUMMARY

[0004] In view of the deficiencies of the prior art, the present application provides a chemical tail gas treatment device to solve the problems raised in the background art.

[0005] To achieve the above object, the present application is realized by the following technical scheme: a chemical tail gas treatment device, comprising a treatment box, a gas inlet pipe fixed to the left side of the treatment box, a liquid inlet pipe fixed to the right side of the treatment box, an exhaust pipe fixed to the right side of the treatment box, a liquid outlet pipe fixed to the right side of the treatment box, a dreg discharge port formed in the right side of the treatment box, a circulating device for secondary treatment of tail gas arranged inside the treatment box, an adjusting device for increasing the use efficiency of treatment liquid arranged inside the treatment box, and a treatment device for separating the precipitate generated by reaction arranged inside the treatment box. The circulating device comprises a motor, a rotating shaft, a spoiler, a rotating disc, a hinged rod, a piston rod, a gas storage tank, a sealing plate, a gas collecting pipe, a first one-way valve, a circulating pipe and a second one-way valve, the motor is fixedly connected to the back of the treatment box, the rotating shaft is fixedly connected to the output end of the motor, the spoiler is fixedly connected to the outer wall of the rotating shaft, and the spoiler rotates above the reaction liquid to disturb the tail gas.

[0006] According to the above technical scheme, the rotating disc is fixedly connected to the shaft end away from the motor through a bearing, the protrusion on the outer wall of the articulated rod penetrates the rotating disc and is rotationally connected at the penetration position, the piston rod is articulated to one end of the articulated rod away from the protrusion, the gas storage tank is fixedly connected to the upper left corner of the inner wall of the treatment box, the sealing plate is fixedly connected to one end of the piston rod away from the articulated rod, and the sealing plate slides left and right to displace the gas in the gas storage tank.

[0007] According to the above technical scheme, the outer wall of the sealing plate is slidingly connected to the inner wall of the gas storage tank, the gas collecting pipe is fixedly connected to the side wall of the gas storage tank, the first one-way valve is fixedly connected to the inner wall of the gas collecting pipe, one end of the circulating pipe is fixedly connected to the side wall of the gas storage tank, the other end of the circulating pipe is fixedly connected to the inner wall of the gas inlet pipe, the second one-way valve is fixedly connected to the inner wall of the circulating pipe, and the gas in the gas storage tank flows out through the circulating pipe and is then drawn into the treatment box from the gas collecting pipe.

[0008] According to the above technical scheme, the adjusting device comprises a cam, a sliding rod, a connecting spring, a stop block, a return spring, a lightweight plate, a first telescopic rod, a jacking rod, and an alarm, the shaft penetrates the cam and is fixedly connected at the penetration position, the sliding rod is slidingly connected to the back of the inner wall of the treatment box, the back of the inner wall of the treatment box is provided with a sliding groove, and the sliding rod slides in the inner wall of the sliding groove.

[0009] According to the above technical scheme, one end of the connecting spring is fixedly connected to the protrusion on the back of the sliding rod, the other end of the connecting spring is fixedly connected to the left side wall of the inner wall of the sliding groove, the stop block is slidingly connected to the right side of the inner wall of the treatment box, one end of the return spring is fixedly connected to the right side wall of the stop block, the other end of the return spring is fixedly connected to the protrusion on the right inner wall of the treatment box, and the sliding rod pushes the stop block to slide when the sliding rod slides to the right.

[0010] According to the above technical scheme, the lightweight plate is slidingly connected to the back of the inner wall of the treatment box, the upper end of the first telescopic rod is fixedly connected to the bottom surface of the lightweight plate, the bottom end of the first telescopic rod is fixedly connected to the bottom of the inner wall of the treatment box, the jacking rod is fixedly connected to the upper surface of the lightweight plate, the alarm is fixedly connected to the back of the inner wall of the treatment box, and the side wall of the jacking rod is fixedly provided with a horizontal plate, the jacking rod moves upward to drive the horizontal plate to press the switch of the alarm upward.

[0011] According to the above technical scheme, the treatment device comprises a pressing rod, a return spring, a guide groove, a long rod, a separation plate, a second telescopic rod, a limiting spring, a stop rod, a limiting block, a connecting rod, and a partition plate, the pressing rod is slidingly connected to the back of the inner wall of the treatment box, the back of the inner wall of the treatment box is provided with a connecting groove, the upper end of the return spring is fixedly connected to the inner wall of the connecting groove, and the lower end of the return spring is fixedly connected to the protrusion on the back of the pressing rod, so that the pressing rod is pushed to slide downward when the cam rotates.

[0012] According to the above technical scheme, the guide groove is arranged on the left and right sides of the inner wall of the treatment box, the two ends of the long rod are slidingly connected in the guide groove, the separation plate is fixedly connected to the bottom surface of the long rod, one end of the second telescopic rod is fixedly connected to the back surface of the long rod, the other end of the second telescopic rod is fixedly connected to the back surface of the inner wall of the treatment box, the limiting spring penetrates through the second telescopic rod and is fitted at the penetration position, and the long rod slides along the guide groove when moving.

[0013] According to the above technical scheme, one end of the limiting spring is fixedly connected to the back surface of the long rod, the other end of the limiting spring is fixedly connected to the back surface of the inner wall of the treatment box, the blocking rod is rotationally connected to the left and right sides of the inner wall of the treatment box, the limiting block is fixedly connected to the left and right sides of the inner wall of the treatment box, the connecting rod is fixedly connected to the upper surface of the long rod, the connecting rod is slidingly connected to the inner wall of the pressing rod, the partition plate is slidingly connected to the back surface of the inner wall of the treatment box, and the separation plate pushes the partition plate to slide upward when moving to the partition plate.

[0014] The application provides a chemical tail gas treatment device. (1) The application is provided with a circulating device. When treating the tail gas, the motor drives the rotating shaft to rotate, so that the spoiler on the outer wall also rotates, the spoiler performs flow disturbance above the reaction liquid, the tail gas that cannot be completely reacted due to too high rising speed is dispersed, so that the tail gas is more uniformly distributed in the space above the liquid surface, the local concentration is avoided to be too high or too low, and the problem that the tail gas treatment effect is greatly different is solved. The rotating disc, the hinged rod and the piston rod drive the sealing plate to repeatedly slide in the gas storage tank to pump the tail gas in the treatment box, and the tail gas is sent into the gas inlet pipe again, so that the tail gas that is not completely reacted is again introduced into the reaction liquid to perform secondary reaction, the reaction time of the tail gas is increased, the treatment effect is improved, and the problem that the treatment effect is poor due to too fast rising of the tail gas is solved.

[0015] (2) The application is provided with an adjusting device. When treating the tail gas, the rotating shaft drives the cam to rotate, cooperates with the sliding rod, the connecting spring and the return spring to push the blocking block to repeatedly slide forward on the right side wall of the treatment box, and blocks the liquid inlet pipe, so that the liquid inlet pipe is repeatedly closed and opened, the reaction liquid can enter the treatment box intermittently, the problem that the reaction liquid continuously enters the treatment box to cause too fast rising of the liquid surface and incomplete reaction with the tail gas is solved, and the problem that too much reaction liquid is wasted is easily caused. The light plate floating on the liquid surface is arranged on the inner wall of the treatment box, cooperates with the first telescopic rod and the jacking rod to automatically close the liquid inlet pipe when the liquid surface reaches a certain height, so that the liquid inlet is stopped, the extrusion of the horizontal plate arranged on the side wall of the jacking rod on the alarm switch is pressed to alarm, and the staff is reminded to open the gate to discharge the liquid, so that the problem that the situation in the treatment box is difficult to detect is solved.

[0016] (3), the processing device is arranged, when the tail gas is treated, the cam pushes the pressure rod to slide up and down, the long rod is pushed to move up and down and also slides forward and backward in cooperation with the guide groove, the separation plate is driven to move to the front of the treatment box and is lowered, and the reaction generated precipitate is pushed to the rear of the treatment box, so that the reaction generated precipitate and the reaction liquid are separated, the precipitate is prevented from being scattered in the reaction liquid, the reaction of the tail gas and the reaction liquid is prevented from being interfered, the problem that the precipitate accumulation affects the reaction rate is solved, after the precipitate and the reaction liquid are separated, the separated precipitate is isolated at the impurity discharge port in cooperation with the partition plate, subsequent discharge of the precipitate is facilitated, and the precipitate is prevented from being accumulated at the liquid discharge pipe, so that the liquid discharge pipe is prevented from being blocked, subsequent liquid discharge work is affected, the problem that the precipitate easily blocks the liquid discharge pipe and causes equipment damage is solved. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a whole structure schematic view of the present application; Figure 2 It is a half cut structure schematic view of the treatment box of the present application; Figure 3 It is a whole cut structure schematic view of the present application Figure 2 It is a local enlarged structure schematic view of area A; Figure 4 It is a internal structure schematic view of the treatment box of the present application; Figure 5 It is a local cut structure schematic view of the treatment box and the gas storage tank of the present application; Figure 6 It is a whole cut structure schematic view of the treatment box of the present application; Figure 7 It is a structure schematic view of the part of the circulating device and the processing device of the present application; Figure 8 It is a whole cut structure schematic view of the present application Figure 7 It is a local enlarged structure schematic view of area B.

[0018] In the drawing: 1, treatment box;2, gas inlet pipe;3, liquid inlet pipe;4, exhaust pipe;5, liquid discharge pipe;6, impurity discharge port;71, motor;72, rotating shaft;73, spoiler;74, rotating disc;75, hinged rod;76, piston rod;77, gas storage tank;78, sealing plate;79, gas collecting pipe;710, first one-way valve;711, circulating pipe;712, second one-way valve;81, cam;82, sliding rod;83, connecting spring;84, stop block;85, return spring;86, light plate;87, first telescopic rod;88, jacking rod;89, alarm;91, pressure rod;92, return spring;93, guide groove;94, long rod;95, separation plate;96, second telescopic rod;97, limit spring;98, stop rod;99, limit block;910, connecting rod;911, partition plate. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all the other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0020] Please refer to Figures 1-8 An embodiment of the present application is: a chemical tail gas treatment device, comprising a treatment box 1, the left side of the treatment box 1 is fixed with an air inlet pipe 2, the right side of the treatment box 1 is fixed with a liquid inlet pipe 3, the right side of the treatment box 1 is fixed with an exhaust pipe 4, the right side of the treatment box 1 is fixed with a liquid outlet pipe 5, the right side of the treatment box 1 is provided with a discharge port 6, and the inside of the treatment box 1 is provided with a circulating device for secondary treatment of tail gas.

[0021] The circulation device includes a motor 71, a rotating shaft 72, a baffle plate 73, a turntable 74, a hinge rod 75, a piston rod 76, an air storage tank 77, a sealing plate 78, an air collection pipe 79, a first one-way valve 710, a circulation pipe 711, and a second one-way valve 712. The motor 71 is fixedly connected to the back of the treatment box 1, and the rotating shaft 72 is fixedly connected to the output end of the motor 71. When the motor 71 is started, it drives the rotating shaft 72 to rotate. The baffle plate 73 is fixedly connected to the outer wall of the rotating shaft 72. When the rotating shaft 72 rotates, it drives the baffle plate 73 to rotate around the rotating shaft 72 above the interior of the treatment box 1, thus turbulenting the rising exhaust gas inside the treatment box 1. The turntable 74 is fixedly connected to the end of the rotating shaft 72 away from the motor 71 via a bearing. When the rotating shaft 72 rotates... The turntable 74 is rotated by the bearing. The protrusion on the outer wall of the hinge rod 75 passes through the turntable 74 and is rotatably connected at the point of penetration. When the turntable 74 rotates, it drives the hinge rod 75 to rotate and move around the central axis of the turntable 74. The piston rod 76 is hinged to the end of the hinge rod 75 away from its protrusion. The movement of the hinge rod 75 drives the piston rod 76 to move left and right. The gas storage box 77 is fixedly connected to the upper left corner of the inner wall of the processing box 1. The sealing plate 78 is fixedly connected to the end of the piston rod 76 away from the hinge rod 75. The outer wall of the sealing plate 78 is slidably connected to the inner wall of the gas storage box 77. When the piston rod 76 moves, it drives the sealing plate 78 to slide against the inner wall of the gas storage box 77. The gas collecting pipe 79 is fixedly connected to the side wall of the gas storage box 77. The first one-way valve 7... 10 is fixedly connected to the inner wall of the gas collecting pipe 79. One end of the circulation pipe 711 is fixedly connected to the side wall of the gas storage tank 77, and the other end of the circulation pipe 711 is fixedly connected to the inner wall of the air inlet pipe 2. The second one-way valve 712 is fixedly connected to the inner wall of the circulation pipe 711. Because the gas collecting pipe 79 is equipped with the first one-way valve 710, gas can only flow from the outside into the gas storage tank 77. And because the circulation pipe 711 is equipped with the second one-way valve 712, gas can only flow from the inside of the gas storage tank 77 to the outside. Therefore, when the sealing plate 78 squeezes the air in the gas storage tank 77, the gas flows from the gas storage tank 77 into the air inlet pipe 2 through the circulation pipe 711. When the piston rod 76 moves toward the turntable 74, the sealing plate 78 slides inward to draw in air. This circulation device treats the exhaust gas. During processing, the motor 71 drives the rotating shaft 72 to rotate, causing the baffle plate 73 on its outer wall to also rotate. This baffle plate creates turbulence above the reaction liquid, dispersing any exhaust gas that cannot fully react due to its rapid ascent. This results in a more even distribution of the exhaust gas above the liquid surface, preventing localized high or low concentrations and resolving the issue of inconsistent exhaust gas treatment effects. In conjunction with the turntable 74, the hinge rod 75, and the piston rod 76, the sealing plate 78 repeatedly slides within the gas storage tank 77 to extract the exhaust gas from the treatment tank 1 and reintroduce it into the inlet pipe 2. This allows the incompletely reacted exhaust gas to be reintroduced into the reaction liquid for a secondary reaction, increasing the reaction time and improving the treatment effect. This solves the problem of poor treatment results caused by excessively rapid ascent of the exhaust gas.

[0022] When the present embodiment works: start the motor 71, the motor 71 drives the rotating shaft 72 to rotate, the rotating shaft 72 drives the spoiler 73 to rotate around the rotating shaft 72 in the upper part of the processing box 1, and the rising exhaust gas in the processing box 1 is disturbed, the rotating shaft 72 drives the rotating disc 74 to rotate through the bearing when rotating, the rotating disc 74 drives the hinged rod 75 to rotate when rotating, the hinged rod 75 drives the piston rod 76 to move left and right, the piston rod 76 drives the sealing plate 78 to slide along the inner wall of the air storage tank 77 when moving, the piston rod 76 drives the sealing plate 78 to push the air in the air storage tank 77 out when moving away from the rotating disc 74, because the first one-way valve 710 is arranged on the gas collecting pipe 79, the gas can only flow from the outside to the air storage tank 77, and the second one-way valve 712 is arranged on the circulating pipe 711, the gas can only flow from the air storage tank 77 to the outside, so when the sealing plate 78 extrudes the air in the air storage tank 77, the gas flows from the air storage tank 77 into the air inlet pipe 2 through the circulating pipe 711, when the piston rod 76 moves towards the rotating disc 74, the sealing plate 78 slides inwards to exhaust, the exhaust gas in the processing box 1 that has not reacted completely is sucked into the air storage tank 77, and then flows into the air inlet pipe 2 again through the circulating pipe 711, and then enters the processing box 1 through the air inlet pipe 2 to react for the second time.

[0023] Please refer to Figures 1-8Based on the above embodiments, in another embodiment of the present invention, the treatment tank 1 is provided with an adjustment device to increase the efficiency of the treatment fluid. The adjustment device includes a cam 81, a sliding rod 82, a connecting spring 83, a stop block 84, a return spring 85, a lightweight plate 86, a first telescopic rod 87, a top rod 88, and an alarm 89. A rotating shaft 72 passes through the cam 81 and is fixedly connected at the point of penetration. When the rotating shaft 72 rotates, it also drives the cam 81 to rotate. The sliding rod 82 is slidably connected to the back of the inner wall of the treatment tank 1. A sliding groove is provided on the back of the inner wall of the treatment tank 1. One end of the connecting spring 83 is fixedly connected to the protrusion on the back of the sliding rod 82. The other end of 83 is fixedly connected to the left side wall of the inner wall of the sliding groove. When the cam 81 rotates to the sliding rod 82, it pushes the sliding rod 82 to slide to the right, while stretching the connecting spring 83. The stop block 84 is slidably connected to the right side of the inner wall of the processing tank 1. When the sliding rod 82 slides to the right to the stop block 84, it pushes the stop block 84 to slide forward, blocking the liquid inlet pipe 3. One end of the return spring 85 is fixedly connected to the right side wall of the stop block 84, and the other end of the return spring 85 is fixedly connected to the protrusion on the right inner wall of the processing tank 1. The stop block 84 slides forward to compress the return spring 85. The lightweight plate 86 is slidably connected to the back of the inner wall of the processing tank 1. The lightweight plate 86 is due to its weight. The material is relatively light and floats in the reaction solution. When the reaction solution level in the treatment tank 1 is high, the lightweight plate 86 rises to a certain height due to buoyancy. The upper end of the first telescopic rod 87 is fixedly connected to the bottom surface of the lightweight plate 86, and the lower end of the first telescopic rod 87 is fixedly connected to the bottom surface of the inner wall of the treatment tank 1. The top rod 88 is fixedly connected to the upper surface of the lightweight plate 86. When the lightweight plate 86 rises, it drives the top rod 88 to move upward as well. When the top rod 88 moves upward to the sliding rod 82, it pushes the sliding rod 82 to slide to the right. The alarm 89 is fixedly connected to the back of the inner wall of the treatment tank 1. A horizontal plate is fixed to the side wall of the top rod 88. When the top rod 88 moves upward, it also drives the side plate to move upward. The horizontal plate on the side moves upward. When the stop 84 completely blocks the liquid inlet pipe 3, the horizontal plate also pushes the button of the alarm 89 upward, causing the alarm 89 to sound an alarm. When the adjustment device treats the exhaust gas, it drives the cam 81 to rotate through the rotating shaft 72. In conjunction with the sliding rod 82, the connecting spring 83 and the return spring 85 push the stop 84 to slide forward repeatedly on the right side wall of the treatment tank 1, blocking the liquid inlet pipe 3. This allows the liquid inlet pipe 3 to be repeatedly closed and opened, so that the reaction liquid can enter the treatment tank 1 intermittently. This solves the problem that the liquid level rises too quickly due to the continuous entry of the reaction liquid into the treatment tank 1, resulting in incomplete reaction with the exhaust gas and easy loss of too much reaction liquid. By setting the light plate 86 floating on the liquid surface on the inner wall of the treatment box 1, cooperating with the first telescopic rod 87 and the top rod 88, when the liquid surface reaches a certain height, the liquid inlet pipe 3 is automatically closed, so as to stop the liquid inlet, at the same time, the extrusion of the horizontal plate set on the side wall of the top rod 88 to the alarm 89 switch performs the alarm, reminding the staff to open the gate to drain the liquid, solving the problem that the situation inside the treatment box 1 is difficult to detect.

[0024] The inside of the processing box 1 is provided with a processing device for separating the precipitate generated by the reaction, and the processing device comprises a pressing rod 91, a return spring 92, a guide groove 93, a long rod 94, a separation plate 95, a second telescopic rod 96, a limiting spring 97, a blocking rod 98, a limiting block 99, a connecting rod 910 and a partition plate 911. The pressing rod 91 is slidingly connected to the back of the inner wall of the processing box 1, and the back of the inner wall of the processing box 1 is provided with a connecting groove. The upper end of the return spring 92 is fixedly connected to the inner wall of the connecting groove, and the lower end of the return spring 92 is fixedly connected to the protruding position on the back of the pressing rod 91. When the cam 81 rotates to the position of the pressing rod 91, the pressing rod 91 is pushed to slide downward, and at the same time, the return spring 92 is stretched. The guide groove 93 is formed on the left and right sides of the inner wall of the processing box 1. The two ends of the long rod 94 are slidingly connected to the guide groove 93. When the long rod 94 moves, it slides along the guide groove 93. The separation plate 95 is fixedly connected to the bottom surface of the long rod 94. The separation plate 95 is made of a filter plate. When the long rod 94 slides forward, the separation plate 95 is driven to move forward and drop down. One end of the second telescopic rod 96 is fixedly connected to the back of the long rod 94, and the other end of the second telescopic rod 96 is fixedly connected to the back of the inner wall of the processing box 1. The limiting spring 97 penetrates through the second telescopic rod 96 and is in close contact at the penetration position. One end of the limiting spring 97 is fixedly connected to the back of the long rod 94, and the other end of the limiting spring 97 is fixedly connected to the back of the inner wall of the processing box 1. When the long rod 94 moves downward, it cannot directly slide in the vertical direction along the guide groove 93, but slides forward along the guide groove 93, and at the same time, the limiting spring 97 is stretched. When the long rod 94 slides to the most forward end along the guide groove 93, the long rod 94 slides backward under the elastic force of the limiting spring 97, and drives the separation plate 95 to move backward, and drives the precipitate generated by the reaction to the rear of the processing box 1. The blocking rod 98 is rotatably connected to the left and right sides of the inner wall of the processing box 1. The limiting block 99 is fixedly connected to the left and right sides of the inner wall of the processing box 1. The blocking rod 98 cannot rotate downward under the limitation of the limiting block 99. The connecting rod 910 is fixedly connected to the upper surface of the long rod 94 and slidingly connected to the inner wall of the pressing rod 91. The partition plate 911 is slidingly connected to the back of the inner wall of the processing box 1 and is made of a filter plate. When the separation plate 95 moves to the partition plate 911, the protruding position of the separation plate 95 slides with the inclined surface in the partition plate 911. The separation plate 95 drives the partition plate 911 to slide upward and rise. The separation plate 95 pushes the precipitate to the rear of the partition plate 911. When the long rod 94 slides to the highest end of the guide groove 93, the blocking rod 98 is reset by gravity. The long rod 94 drives the separation plate 95 to rise again, and when it slides downward next time, the separation plate 95 is away from the partition plate 911. The partition plate 911 slides downward under the gravity, and the precipitate is isolated in the rear of the processing box 1. When the processing device processes the tail gas, the pressing rod 91 slides upward and downward under the pushing of the cam 81. The long rod 94 slides forward and backward under the pushing of the guide groove 93 while moving upward and downward, and drives the separation plate 95 to move to the most forward position of the processing box 1 and drop down, and drives the precipitate generated by the reaction to the rear of the processing box 1.Thus, the generated precipitate and the reaction liquid are separated, avoiding the precipitate scattered in the reaction liquid, interfering with the reaction of the tail gas and the reaction liquid, solving the problem of the precipitate accumulation affecting the reaction rate; after the precipitate and the reaction liquid are separated, the separated precipitate is isolated at the impurity discharge port 6 by the partition plate 911, facilitating subsequent discharge of the precipitate while avoiding the precipitate accumulation at the liquid discharge pipe 5, thereby causing the liquid discharge pipe 5 to be blocked, affecting subsequent liquid discharge work, solving the problem that the precipitate easily blocks the liquid discharge pipe 5, causing damage to the equipment.

[0025] When the present embodiment works: when the rotating shaft 72 rotates, the cam 81 also rotates, when the cam 81 rotates to the sliding rod 82, the sliding rod 82 slides to the right, and the connecting spring 83 is stretched, when the sliding rod 82 slides to the right to the stop block 84, the side of the sliding rod 82 and the inclined surface of the stop block 84 slide with each other, the sliding rod 82 pushes the stop block 84 to slide forward, blocking the liquid inlet pipe 3, and compressing the return spring 85, when the cam 81 rotates to the position away from the sliding rod 82, the sliding rod 82 is reset by the elastic force of the connecting spring 83, the stop block 84 is no longer pushed by the sliding rod 82, and the return spring 85 is also reset, opening the liquid inlet pipe 3 again, and realizing intermittent liquid inlet through the reciprocating movement of the stop block 84, the lightweight plate 86 floats in the reaction liquid due to its light weight, when the liquid level in the treatment box 1 is high, the lightweight plate 86 also rises to a certain height due to the influence of the buoyancy, when the lightweight plate 86 rises upward, the top rod 88 also moves upward, when the top rod 88 moves upward to the sliding rod 82, the inclined surface of the top rod 88 and the side of the sliding rod 82 slide with each other, the top rod 88 continues to move upward, pushing the sliding rod 82 to slide to the right, pushing the stop block 84 to slide forward, when the liquid level reaches a certain height, the stop block 84 completely blocks the liquid inlet pipe 3, when the top rod 88 moves upward, the lateral plate on the side of the top rod 88 also moves upward, when the stop block 84 completely blocks the liquid inlet pipe 3, the lateral plate pushes the button of the alarm 89 upward, and the alarm 89 sends an alarm, reminding the staff to open the gate and discharge liquid.

[0026] When the cam 81 rotates to the pressing rod 91, the pressing rod 91 is pushed to slide downward, and the return spring 92 is stretched, when the pressing rod 91 slides downward, the long rod 94 is also moved downward, and the two ends of the long rod 94 slide along the guide groove 93, and the stop rod 98 is limited by the limiting block 99 and cannot rotate downward, so the long rod 94 cannot slide along the guide groove 93 in the vertical direction when moving downward, but slides forward along the guide groove 93, and stretches the limiting spring 97, when the long rod 94 slides forward, the separation plate 95 is moved forward and lowered, when the long rod 94 slides along the guide groove 93 to the most front end, the long rod 94 is slid backward under the elastic force of the limiting spring 97, drives the separation plate 95 to move backward, and the reaction generated precipitate is brought to the rear of the treatment box 1, when the separation plate 95 moves to the partition plate 911, the protrusion of the separation plate 95 slides with the inclined surface in the partition plate 911, the separation plate 95 drives the partition plate 911 to slide upward and rise, and the separation plate 95 pushes the precipitate to the rear of the partition plate 911, when the cam 81 continues to rotate to be separated from the pressing rod 91, the pressing rod 91 slides upward under the elastic force of the return spring 92, and the long rod 94 also moves upward, at this time, the long rod 94 slides upward along the guide groove 93, and when sliding to the stop rod 98, the stop rod 98 is driven to rotate and continue to slide upward, when the long rod 94 slides to the highest end of the guide groove 93, the stop rod 98 is reset by gravity, and the long rod 94 drives the separation plate 95 to rise again, and when sliding downward next time, the separation plate 95 is away from the partition plate 911, the partition plate 911 slides downward under gravity, and the precipitate is isolated in the rear of the treatment box 1, which is convenient for subsequent liquid and impurity separation.

[0027] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A chemical waste gas treatment device, comprising a treatment tank (1), characterized in that: The left side of the processing box (1) is fixed with an air inlet pipe (2), the right side of the processing box (1) is fixed with a liquid inlet pipe (3), the right side of the processing box (1) is fixed with an exhaust pipe (4), the right side of the processing box (1) is fixed with a liquid outlet pipe (5), the right side of the processing box (1) is provided with a discharge port (6), the inside of the processing box (1) is provided with a circulating device for secondary treatment of tail gas, the inside of the processing box (1) is provided with an adjusting device for increasing the use efficiency of treatment liquid, and the inside of the processing box (1) is provided with a treatment device for separating the precipitate generated by reaction. The circulating device comprises a motor (71), a rotating shaft (72), a spoiler (73), a rotating disc (74), a hinged rod (75), a piston rod (76), a gas storage tank (77), a sealing plate (78), a gas collecting pipe (79), a first one-way valve (710), a circulating pipe (711) and a second one-way valve (712), the motor (71) is fixedly connected to the back of the processing box (1), the rotating shaft (72) is fixedly connected to the output end of the motor (71), and the spoiler (73) is fixedly connected to the outer wall of the rotating shaft (72).

2. The chemical tail gas treatment device according to claim 1, characterized in that: The rotating disc (74) is fixedly connected to one end of the rotating shaft (72) away from the motor (71) through a bearing, the protrusion on the outer wall of the hinged rod (75) penetrates the rotating disc (74) and is rotationally connected at the penetration position, the piston rod (76) is hinged to one end of the hinged rod (75) away from the protrusion, the gas storage tank (77) is fixedly connected to the upper left corner of the inner wall of the processing box (1), and the sealing plate (78) is fixedly connected to one end of the piston rod (76) away from the hinged rod (75).

3. The chemical tail gas treatment device according to claim 2, characterized in that: The outer wall of the sealing plate (78) is slidably connected to the inner wall of the gas storage tank (77), the gas collecting pipe (79) is fixedly connected to the side wall of the gas storage tank (77), the first one-way valve (710) is fixedly connected to the inner wall of the gas collecting pipe (79), one end of the circulating pipe (711) is fixedly connected to the side wall of the gas storage tank (77), the other end of the circulating pipe (711) is fixedly connected to the inner wall of the air inlet pipe (2), and the second one-way valve (712) is fixedly connected to the inner wall of the circulating pipe (711).

4. The chemical plant off-gas treatment device according to claim 3, characterized in that: The adjusting device comprises a cam (81), a sliding rod (82), a connecting spring (83), a stop block (84), a return spring (85), a lightweight plate (86), a first telescopic rod (87), a jacking rod (88) and an alarm (89), the rotating shaft (72) penetrates the cam (81) and is fixedly connected at the penetration position, the sliding rod (82) is slidably connected to the back of the inner wall of the processing box (1), and a sliding groove is formed in the back of the inner wall of the processing box (1).

5. The chemical plant off-gas treatment device according to claim 4, characterized in that: One end of the connecting spring (83) is fixedly connected with the protrusion at the back of the sliding rod (82), the other end of the connecting spring (83) is fixedly connected with the left side wall of the inner wall of the sliding groove, the stop block (84) is slidingly connected with the right side of the inner wall of the processing box (1), one end of the return spring (85) is fixedly connected with the right side wall of the stop block (84), the other end of the return spring (85) is fixedly connected with the protrusion at the right inner wall of the processing box (1).

6. The chemical plant off-gas treatment device according to claim 5, characterized in that: The lightweight plate (86) is slidingly connected to the back of the inner wall of the processing box (1), the upper end of the first telescopic rod (87) is fixedly connected to the bottom surface of the lightweight plate (86), the bottom end of the first telescopic rod (87) is fixedly connected to the bottom surface of the inner wall of the processing box (1), the top rod (88) is fixedly connected to the upper surface of the lightweight plate (86), the alarm (89) is fixedly connected to the back of the inner wall of the processing box (1), and the side wall of the top rod (88) is fixed with a horizontal plate.

7. The chemical plant off-gas treatment device according to claim 6, characterized in that: The processing device comprises a pressing rod (91), a return spring (92), a guide groove (93), a long rod (94), a separation plate (95), a second telescopic rod (96), a limiting spring (97), a blocking rod (98), a limiting block (99), a connecting rod (910) and a partition plate (911), the pressing rod (91) is slidingly connected to the back of the inner wall of the processing box (1), a connecting groove is formed in the back of the inner wall of the processing box (1), the upper end of the return spring (92) is fixedly connected to the inner wall of the connecting groove, and the lower end of the return spring (92) is fixedly connected to the protrusion at the back of the pressing rod (91).

8. The chemical plant off-gas treatment device according to claim 7, characterized in that: The guide groove (93) is formed in the left and right sides of the inner wall of the processing box (1), the long rod (94) is slidingly connected to the guide groove (93), the separation plate (95) is fixedly connected to the bottom surface of the long rod (94), one end of the second telescopic rod (96) is fixedly connected to the back of the long rod (94), the other end of the second telescopic rod (96) is fixedly connected to the back of the inner wall of the processing box (1), the limiting spring (97) penetrates the second telescopic rod (96) and is attached at the penetration position.

9. The chemical plant off-gas treatment device according to claim 8, characterized in that: One end of the limiting spring (97) is fixedly connected to the back of the long rod (94), the other end of the limiting spring (97) is fixedly connected to the back of the inner wall of the processing box (1), the blocking rod (98) is rotatably connected to the left and right sides of the inner wall of the processing box (1), the limiting block (99) is fixedly connected to the left and right sides of the inner wall of the processing box (1), the connecting rod (910) is fixedly connected to the upper surface of the long rod (94), the connecting rod (910) is slidingly connected to the inner wall of the pressing rod (91), and the partition plate (911) is slidingly connected to the back of the inner wall of the processing box (1).

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