CN117983041A - A toxic gas removal device and a toxic gas removal method for chemical industry - Google Patents

Abstract

The invention discloses a toxic gas removing device and a toxic gas removing method for the chemical industry, and belongs to the field of industrial waste gas treatment. The toxic gas removing device for the chemical industry comprises a treatment box body, and an air inlet bin and an air outlet bin which are fixed on two sides of the treatment box body and are communicated with the treatment box body, wherein a treatment tank and a liquid blocking tank are respectively arranged in the treatment box body, and the inlet end of the air outlet bin is fixedly connected with an active carbon box; according to the invention, the impeller and the pneumatic fan blades are driven to rotate by the driving of wind power, atomized solution sprayed downwards is generated in the air inlet bin, and a solution water curtain is generated in the treatment tank, so that acid components in toxic gas are subjected to front-back two-step reaction neutralization, the solution is more comprehensively and continuously contacted with the gas, and the purification treatment effect is effectively improved; and the liquid suction pipe continuously pumps the solution upwards, so that the solution can flow into the filter tank rapidly, thereby pushing the pneumatic fan blades to rotate more rapidly, realizing a more compact water curtain effect and improving the neutralization and purification effects.

Description

A toxic gas removal device and a toxic gas removal method for chemical industry

Technical Field

The invention relates to the technical field of industrial waste gas treatment, and in particular to a toxic gas removal device and a toxic gas removal method used in the chemical industry.

Background technique

In the production process of the chemical industry, a certain amount of toxic and harmful gases will inevitably be produced. These harmful gases include acidic carbon oxides, nitrogen oxides and sulfides. These gases are the main components that harm the atmospheric environment and are also the main components that cause acid rain and natural disasters. Therefore, in the production process of the chemical industry, the toxic and harmful gases produced need to be purified and filtered before being discharged, so as to effectively reduce the impact on the environment.

The patent with the publication number of "CN115245725A" is named as a toxic gas removal device and removal method for the chemical industry, which includes a shell, and an adsorption layer replacement mechanism is arranged inside the shell; the adsorption layer replacement mechanism includes a motor; the output end of the motor is fixedly connected to a lead screw, and the outer cylindrical surface of the lead screw is slidably connected to a ball nut seat; two purification mechanisms are symmetrically installed on the upper and lower surfaces of the ball nut seat; the purification mechanism includes a No. 1 rod fixedly connected to the outer surface of one side of the ball nut seat; one end of the No. 1 rod is fixedly connected to a clamping mechanism; the clamping mechanism is fixedly connected to a basic adsorption layer; an amplification mechanism is arranged in the middle of the outer surface of one side of the clamping mechanism. The invention is suitable for replacing the adsorption layer of a plurality of layers of an activated carbon adsorption tower by setting an adsorption layer replacement mechanism, and has a simple structure, convenient operation, and controllable manufacturing and installation costs. Compared with the existing technical means, the device makes the replacement and cleaning of the adsorption layer more convenient and quick, and improves the replacement and cleaning efficiency of the adsorption layer.

With respect to the above existing patents, there are still the following shortcomings. First, the degree of adsorption of activated carbon is limited, and it is not possible to complete the adsorption of toxic gases in a timely and comprehensive manner. Some toxic gases may leak, and the treatment effect is relatively general. Therefore, a toxic gas removal device and a toxic gas removal method for the chemical industry are proposed.

Summary of the invention

The purpose of the present invention is to solve the problem that the prior art cannot timely and comprehensively complete the adsorption of toxic gases, there is leakage of some toxic gases, and the harmful gas treatment effect is reduced, and a toxic gas removal device and removal method for the chemical industry are proposed.

In order to achieve the above object, the present invention adopts the following technical solutions:

A poisonous gas removal device for chemical industry comprises a processing box body and an air inlet bin and an air outlet bin fixed on both sides thereof and connected thereto, wherein a processing tank and a liquid retaining tank are respectively provided in the processing box body, and an activated carbon box is fixedly connected to the inlet end of the air outlet bin, and further comprises: a liquid suction component, which is arranged in the processing tank and is used for neutralizing the poisonous gas with an absorption liquid; a shielding mechanism, which is arranged in the liquid retaining tank and is used for blocking the liquid part in the treated gas and refluxing it for utilization; and a liquid replenishing mechanism, which is arranged on the top of the processing box body and is used for automatically replenishing the absorption liquid into the processing tank during the processing process.

In order to facilitate the absorption of toxic gases, preferably, the liquid suction assembly includes a guide fan blade, which is rotatably connected to the inner wall of the air outlet bin, and the outer wall of the air outlet bin is fixedly connected to a drive motor, and the output shaft of the drive motor is fixedly connected to the rotating shaft of the guide fan blade, the side wall of the treatment tank is fixedly connected to a mounting rod, and the other end of the mounting rod is rotatably connected to a pneumatic fan blade, and the bottom end blade of the pneumatic fan blade extends below the liquid level of the treatment tank cavity.

In order to improve the absorption effect, further, a liquid extraction pipe is fixedly connected in the treatment tank, the top end of the liquid extraction pipe extends through the top of the air inlet bin, and the output end of the liquid extraction pipe is fixedly connected to the atomizing nozzle, the outer wall of the liquid extraction pipe is fixed and connected to a liquid extraction box, the middle part of the liquid extraction box is rotatably connected to a rotating ring, the inner wall of the rotating ring is fixedly connected to liquid extraction blades, and the outer wall of the rotating ring is connected to a driving impeller.

To facilitate cleaning, preferably, a filter tank is provided at the bottom of the treatment tank, a filter plate is fixedly connected between the filter tank and the treatment tank, a guide pipe is fixedly connected to the middle of the filter plate, both ends of the guide pipe are respectively connected to the filter tank and the treatment tank, and a one-way valve is provided in the guide pipe, the input end of the liquid extraction pipe passes through the filter plate and extends into the filter tank to be connected thereto, and a filter screen structure identical to the filter plate is provided in the input end of the liquid extraction pipe, and a drain pipe is connected to the outer wall of the filter tank.

In order to reduce the loss of liquid medicine, preferably, the shielding mechanism includes an upper baffle and a lower baffle, and the upper baffle and the lower baffle are both rotatably connected to the inside of the liquid retaining groove, the upper baffle and the lower baffle are cross-arranged, the extension line of the upper baffle intersects with the lower baffle, and the side walls of the upper baffle are provided with blocking strips at equal intervals, and the side walls of the upper baffle are hinged with a first connecting rod, and the other end of the first connecting rod is hinged to the top of the lower baffle.

In order to facilitate rapid reflux, preferably, a spring telescopic rod is fixedly connected to the bottom of the liquid retaining groove, a second connecting rod is hinged to the top of the spring telescopic rod, the other end of the second connecting rod is hinged to the side wall of the lower baffle plate, an air-filled groove is opened in the central disk of the pneumatic fan blade, a first magnetic plate is slidably connected in the air-filled groove, a first spring is fixedly connected between the first magnetic plate and the air-filled groove, a second magnetic plate is fixedly connected to the blade end of the driving impeller, the second magnetic plate and the first magnetic plate magnetically repel each other, an air guide groove is opened inside the mounting rod, and the two ends of the air guide groove are respectively connected to the air-filled groove and the inner cavity of the spring telescopic rod.

In order to improve the absorption effect, preferably, the liquid replenishing mechanism includes a liquid storage box, which is fixedly connected to the top of the processing box, a piston cylinder is fixedly connected in the liquid storage box, a piston plate is slidably connected in the piston cylinder, a second spring is fixedly connected between the top of the piston plate and the piston cylinder, a liquid guiding rod is fixedly connected to the bottom of the piston plate, the liquid guiding rod extends through and into the processing tank, and a third magnetic plate is fixedly connected to the bottom end of the liquid guiding rod, a liquid guiding hole is opened in the middle of the liquid guiding rod and the third magnetic plate, and a fourth magnetic plate is fixedly connected to the blade end of the pneumatic fan blade, and the fourth magnetic plate and the third magnetic plate magnetically repel each other.

Furthermore, the outside of the piston cylinder is connected to an air duct, the other end of the air duct passes through the middle of the activated carbon box and is connected to the inner cavity of the filter tank, and the side walls of the air duct located in the activated carbon box are connected to intake pipes at equal intervals, and one-way valves are provided at one end of the air duct close to the filter tank and in the intake pipe.

Preferably, one end of the air inlet bin away from the processing box is connected to an air inlet pipe, and one end of the air outlet bin away from the processing box is connected to an air outlet pipe, and the air outlet pipe is arranged to be inclined upward.

A method for removing toxic gases in the chemical industry, the specific steps are as follows:

Step 1: Using absorption liquid to absorb and purify the toxic gas;

Step 2: During the absorption and purification process, new absorption liquid is continuously added to the treatment box;

Step 3: filtering the particulate matter contained in the gas and the absorption reaction products;

Step 4: Block the moisture in the purified gas and make it flow back.

Compared with the prior art, the present invention provides a toxic gas removal device and a toxic gas removal method for the chemical industry, which has the following beneficial effects:

1. The toxic gas removal device used in the chemical industry drives the impeller and the pneumatic fan blades to rotate through wind power, generates a downward sprayed atomized solution in the air inlet bin, and generates a solution water curtain in the treatment tank, so as to neutralize the acidic components in the toxic gas in two steps, so that the solution and the gas are in more comprehensive and continuous contact, and the purification treatment effect is effectively improved; and the liquid extraction pipe continuously extracts the solution upward, which will make the solution flow quickly into the filter tank, thereby driving the pneumatic fan blades to rotate faster, achieving a denser water curtain effect, and improving the neutralization and purification effect.

2. The toxic gas removal device used in the chemical industry, when the solution flows rapidly into the filter tank, will cause the particles and reaction products in the solution to enter the filter tank and be collected, thereby improving the cleanliness of the solution inside, making it easier to dip and swing to form a water curtain, and also reducing the wear of the particles and reaction products on the pneumatic fan blades.

3. The toxic gas removal device used in the chemical industry blocks the solution entrained in the gas through the special structural setting of the upper baffle and the lower baffle. Under the inertia and vibration generated by the reciprocating movement, the solution attached to the upper baffle and the lower baffle quickly flows back to the treatment tank, so that the blown-away solution quickly flows back and replenishes, ensuring the purification effect.

4. The toxic gas removal device used in the chemical industry, through the continuous magnetic contact between the third magnetic plate and the fourth magnetic plate, enables the liquid storage box to continuously add new solution to the treatment tank, thereby avoiding the reduction of the concentration of the solution in the treatment tank and improving the treatment effect; and utilizes the air pressure generated by the reciprocating sliding of the piston cylinder and the piston plate to first complete the recoil of the filter plate, thereby improving the use effect of the filter plate, and secondly, the toxic gas molecules adsorbed in the activated carbon box are re-filled into the filter tank for purification, thereby improving the purification effect and ensuring the quality of the discharged air.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic diagram of the overall structure of a toxic gas removal device for use in the chemical industry according to the present invention;

FIG2 is a schematic diagram of the internal structure of a treatment box of a toxic gas removal device for chemical industry proposed by the present invention;

FIG3 is a schematic side view of a half-section structure of a toxic gas removal device for use in the chemical industry proposed by the present invention;

FIG4 is an enlarged structural schematic diagram of the A region in FIG3 of a toxic gas removal device for chemical industry proposed by the present invention;

FIG5 is a schematic diagram of the internal structure of a treatment tank of a toxic gas removal device for use in the chemical industry proposed by the present invention;

FIG6 is an enlarged structural schematic diagram of the B area in FIG5 of a toxic gas removal device for chemical industry proposed by the present invention;

FIG7 is a partial cross-sectional structural schematic diagram of a toxic gas removal device for use in the chemical industry proposed by the present invention;

FIG8 is a schematic diagram of the enlarged structure of the C area in FIG7 of a toxic gas removal device for the chemical industry proposed by the present invention.

In the figure: 1, treatment box; 2, air inlet chamber; 21, air inlet pipe; 3, air outlet chamber; 31, activated carbon box; 32, air outlet pipe; 4, treatment tank; 41, filter tank; 42, filter plate; 421, guide pipe; 5, liquid retaining tank; 6, liquid suction assembly; 61, guide fan blade; 62, drive motor; 63, mounting rod; 64, pneumatic fan blade; 65, liquid extraction pipe; 651, atomizing nozzle; 66, liquid extraction box; 661, rotating ring; 662, liquid extraction blade; 663, driving impeller; 7, shielding mechanism; 7 1. Upper baffle; 711. blocking bar; 72. Lower baffle; 73. first connecting rod; 74. spring telescopic rod; 741. second connecting rod; 75. inflation groove; 751. first magnetic plate; 752. first spring; 753. second magnetic plate; 754. air guide groove; 8. liquid replenishing mechanism; 81. liquid storage box; 82. piston cylinder; 821. piston plate; 822. second spring; 83. liquid guide rod; 831. third magnetic plate; 832. liquid guide hole; 84. fourth magnetic plate; 85. air guide pipe; 851. air intake pipe.

Detailed ways

The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

Embodiment 1

1 to 8, a toxic gas removal device for chemical industry includes a processing box 1 and an air inlet bin 2 and an air outlet bin 3 fixed on both sides thereof and connected thereto. The end of the air inlet bin 2 away from the processing box 1 is connected to an air inlet pipe 21, and the air inlet pipe 21 is connected to the chemical production room. The end of the air outlet bin 3 away from the processing box 1 is connected to an air outlet pipe 32, and the air outlet pipe 32 is connected to the outside, and the air outlet pipe 32 is inclined upward. A processing tank 4 and a liquid retaining tank 5 are respectively provided in the processing box 1. An activated carbon box 31 is fixedly connected to the inlet end of the air outlet bin 3. It also includes: a liquid suction component 6, which is arranged in the treatment tank 4 and is used for neutralizing the toxic gas with the absorption liquid; a shielding mechanism 7, which is arranged in the liquid blocking tank 5 and is used to block the liquid part of the treated gas and reflux it for utilization; a liquid replenishing mechanism 8, which is arranged on the top of the treatment box 1 and is used to automatically replenish the absorption liquid into the treatment tank 4 during the treatment process, wherein the activated carbon box 31 contains activated carbon particles, which are used to re-adsorb and purify the purified gas, so as to improve the overall purification effect of the device.

Referring to Figures 2, 3, 4 and 8, the liquid suction assembly 6 includes a guide blade 61, which is rotatably connected to the inner wall of the gas outlet bin 3, and a drive motor 62 is fixedly connected to the outer wall of the gas outlet bin 3. The output shaft of the drive motor 62 is fixedly connected to the rotating shaft of the guide blade 61, and a mounting rod 63 is fixedly connected to the side wall of the processing tank 4. The other end of the mounting rod 63 is rotatably connected to a pneumatic blade 64, and the bottom end blade of the pneumatic blade 64 extends to below the liquid level of the processing tank 4 cavity. Hydrogen can be selected in the processing tank 4. Sodium oxide solution is used to absorb and treat acidic toxic gases such as nitrogen oxides and sulfides; a liquid extraction pipe 65 is fixedly connected in the treatment tank 4, the top of the liquid extraction pipe 65 extends through the top of the air inlet bin 2, and the output end of the liquid extraction pipe 65 is fixedly connected to the atomizing nozzle 651, the outer wall of the liquid extraction pipe 65 is fixed and connected to a liquid extraction box 66, the middle part of the liquid extraction box 66 is rotatably connected to a rotating ring 661, the inner wall of the rotating ring 661 is fixedly connected to a liquid extraction blade 662, and the outer wall of the rotating ring 661 is connected to a driving impeller 663;

Through the above-mentioned combined arrangement, the driving motor 62 is turned on to drive the guide blade 61 to rotate, thereby generating a suction effect in the processing box 1, so that the toxic gas in the chemical production area enters the processing box 1 along the air inlet pipe 21, and under the thrust of the fast-flowing gas, the driving impeller 663 will be driven to rotate first, so that it drives the extraction blade 662 in the extraction box 66 to rotate, thereby extracting the sodium hydroxide solution from the bottom of the processing tank 4 through the extraction pipe 65, and then spraying it downwards by the atomizing nozzle 651, so that the acidic toxic gas and the sodium hydroxide solution Contact and neutralization reaction are carried out to achieve the initial purification. Secondly, the airflow will also cause the pneumatic fan blades 64 to rotate, so that the blades continuously dip into the sodium hydroxide solution at the bottom of the treatment tank 4, and under the action of centrifugal rotation, the sodium hydroxide solution forms a layer of water curtain around the pneumatic fan blades 64. At this time, when the gas passes through, the toxic acidic components inside it will react with the sodium hydroxide solution again to achieve secondary purification. In summary, through the front and back step-by-step purification, the solution and the gas are in more comprehensive and continuous contact, which effectively improves the purification treatment effect.

Referring to Figures 2, 3 and 7, a filter tank 41 is provided at the bottom of the treatment tank 4, a filter plate 42 is fixedly connected between the filter tank 41 and the treatment tank 4, a guide pipe 421 is fixedly connected to the middle of the filter plate 42, two ends of the guide pipe 421 are respectively connected to the filter tank 41 and the treatment tank 4, and a one-way valve is arranged in the guide pipe 421, the input end of the liquid extraction pipe 65 passes through the filter plate 42 and extends to the filter tank 41 to be connected thereto, and a filter screen structure identical to the filter plate 42 is arranged in the input end of the liquid extraction pipe 65, and the aperture of the filter plate 42 structure can only allow liquid to pass through, and cannot allow particulate matter and reaction products to pass through, and a drain pipe is connected to the outer wall of the filter tank 41, and the drain pipe is used to discharge the residue in the treatment tank 4 after the treatment is completed;

It should be noted that the one-way valve in the flow guide pipe 421 can only allow the solution in the treatment tank 4 to move into the filter tank 41;

Through the above-mentioned combined setting, the solution sprayed downward by the atomizing nozzle 651 will flow back into the treatment tank 4. At this time, the particulate matter in the air and the neutralization reaction products carried in the solution will all be gathered in the treatment tank 4. As the solution in the treatment tank 4 is continuously drawn upward along the liquid extraction pipe 65, the solution in the treatment tank 4 will quickly filter the plate 42 and the guide pipe 421 to move toward the input end of the liquid extraction pipe 65 in the filter tank 41. When the liquid passes through the guide pipe 421, its internal one-way valve will be opened to allow the particulate matter and the reaction products to enter the filter tank 41. Then the solution will be continuously drawn away, while the particulate matter and the reaction products will be filtered in the filter tank 41, thereby improving the cleanliness of the solution inside, facilitating dipping and swinging to form a water curtain, and also reducing the wear of the particulate matter and the reaction products on the pneumatic fan blades 64, thereby improving the durability of the pneumatic fan blades 64; and the solution in the treatment tank 4 continuously flows rapidly into the filter tank 41, thereby promoting the pneumatic fan blades 64 to rotate faster, achieving a denser water curtain effect, and improving the neutralization and purification effect.

Referring to Figures 2, 3, 7 and 8, the shielding mechanism 7 includes an upper baffle 71 and a lower baffle 72, both of which are rotatably connected to the inside of the liquid retaining tank 5, and the upper baffle 71 and the lower baffle 72 are cross-arranged, and the extension line of the upper baffle 71 intersects with the lower baffle 72, so that the shielding and obstructing effect of the solution can be fully achieved, and the side wall of the upper baffle 71 is evenly spaced with blocking bars 711, and the blocking bars 711 are used to better block the solution. The side wall of the upper baffle 71 is hinged with a first connecting rod 73, and the other end of the first connecting rod 73 is hinged with the top of the lower baffle 72; the bottom of the liquid retaining tank 5 is fixedly connected with a spring telescopic rod 74, a second connecting rod 741 is hinged at the top of the spring telescopic rod 74, and the other end of the second connecting rod 741 is hinged to the side wall of the lower baffle 72, an air-filling groove 75 is provided in the central disk of the pneumatic fan blade 64, a first magnetic plate 751 is slidably connected in the air-filling groove 75, a first spring 752 is fixedly connected between the first magnetic plate 751 and the air-filling groove 75, a second magnetic plate 753 is fixedly connected to the blade end of the driving impeller 663, the second magnetic plate 753 and the first magnetic plate 751 are magnetically repelled, an air-guiding groove 754 is provided inside the mounting rod 63, and the two ends of the air-guiding groove 754 are respectively connected to the air-filling groove 75 and the inner cavity of the spring telescopic rod 74;

Through the above-mentioned combined arrangement, the toxic gas will continue to be sucked into the liquid retaining groove 5 after being processed, and the incoming gas will collide with the upper baffle 71 and the lower baffle 72, and through the special structural arrangement of the upper baffle 71 and the lower baffle 72, the solution entrained in the gas is blocked and retained, and the gas partially passes through, effectively reducing the loss of the solution. When the driving impeller 663 rotates, the second magnetic plate 753 set at the end of its blade will repel the first magnetic plate 751. When the two are in the area of magnetic contact, the first magnetic plate 751 will retract into the gas filling groove 75, thereby compressing the gas in the gas filling groove 75. The gas is guided into the inner cavity of the spring telescopic rod 74 through the gas guide groove 754, so that the spring telescopic rod 74 pushes the lower baffle plate 72 to move, and the lower baffle plate 72 also pushes the lower baffle plate 72 to move at the same time. Then, when the two are separated from the magnetic area, the spring telescopic rod 74 will retract and reset, so that the upper baffle plate 71 and the lower baffle plate 72 move in the opposite direction again, and so on and so forth, so as to better block the solution. The inertia and vibration generated by the reciprocating movement will cause the solution attached to the upper baffle plate 71 and the lower baffle plate 72 to quickly flow back into the treatment tank 4, so that the blown-away solution can quickly flow back and be replenished, thereby ensuring the purification effect.

3, 5 and 6, the liquid replenishing mechanism 8 includes a liquid storage box 81, the liquid storage box 81 is fixedly connected to the top of the processing box 1, a piston cylinder 82 is fixedly connected in the liquid storage box 81, a piston plate 821 is slidably connected in the piston cylinder 82, a second spring 822 is fixedly connected between the top of the piston plate 821 and the piston cylinder 82, a liquid guide rod 83 is fixedly connected to the bottom of the piston plate 821, the liquid guide rod 83 extends through and extends into the processing tank 4, and a third magnetic plate 831 is fixedly connected to the bottom end of the liquid guide rod 83, a liquid guide hole 832 is opened in the middle of the liquid guide rod 83 and the third magnetic plate 831, and a fourth magnetic plate 84 is fixedly connected to the blade end of the pneumatic fan blade 64, and the fourth magnetic plate 84 and the third magnetic plate 831 repel each other magnetically;

Through the above-mentioned combined settings, while the pneumatic fan blades 64 rotate, the fourth magnetic plate 84 set at the end of the blades will intermittently contact the third magnetic plate 831. When the two are in the magnetic area, the third magnetic plate 831 will be pushed to move upward, so that the liquid guiding rod 83 and the piston plate 821 will retract into the piston cylinder 82. At this time, when the liquid guiding rod 83 moves up, the top of the liquid guiding hole 832 will be connected to the inner cavity of the liquid storage box 81. At this time, the higher concentration sodium hydroxide solution stored in the liquid storage box 81 will fall and be added to the treatment tank 4. Then, when the two leave the magnetic area, the liquid guiding rod 83 will be reset under the rebound action of the second spring 822, so as to achieve the blocking of the liquid guiding hole 832. This reciprocating process continuously drips new solution into the treatment tank 4 to avoid the reduction of the solution concentration in the treatment tank 4 and improve the treatment effect.

Referring to Figures 2, 3 and 7, the outside of the piston cylinder 82 is connected to an air duct 85, the other end of the air duct 85 passes through the middle of the activated carbon box 31 and is connected to the inner cavity of the filter tank 41, and the side walls of the air duct 85 located in the activated carbon box 31 are connected to the air intake pipe 851 at equal intervals, and one-way valves are provided at one end of the air duct 85 close to the filter tank 41 and in the air intake pipe 851.

It should be noted that the one-way valve in the air guide pipe 85 can only allow the airflow to enter the filter tank 41 along the air guide pipe 85; the one-way valve in the air intake pipe 851 can only allow the gas in the activated carbon box 31 to be sucked into the air guide pipe 85 and replenished into the piston cylinder 82;

Through the arrangement of the above structure, when the piston plate 821 retracts into the piston cylinder 82, the gas in the piston cylinder 82 will be squeezed, so that the airflow with thrust is filled into the filter tank 41 along the air guide pipe 85, thereby realizing the recoil of the filter plate 42, avoiding excessive filter material adhering to its water inlet surface, and effectively improving the use effect of the filter plate 42. When the piston plate 821 is reset, suction will be generated in the piston cylinder 82, thereby sucking air from the activated carbon box 31, so that some harmful gas molecules attached to the activated carbon inside the activated carbon box 31 are re-sucked into the piston cylinder 82. Subsequently, the above contents are repeated, and the adsorbed harmful gas molecules will be filled into the filter tank 41 with the recoil effect, thereby realizing the re-purification of the harmful gas molecules, improving the purification effect, and ensuring the quality of the exhaust air.

1 to 8, in the present invention, when in use, the driving motor 62 is turned on to drive the guide blade 61 to rotate, thereby generating a suction effect in the processing box 1, so that the toxic gas in the chemical production area enters the processing box 1 along the air inlet pipe 21, and under the thrust of the fast-flowing gas, the driving impeller 663 will first be driven to rotate, so that it drives the liquid extraction blade 662 in the liquid extraction box 66 to rotate, thereby extracting the sodium hydroxide solution from the bottom of the processing tank 4 through the liquid extraction pipe 65, and then spraying it downwards by the atomizing nozzle 651, so that the acidic toxic gas and the hydrogen The sodium hydroxide solution contacts and reacts with the gas to achieve the initial purification. The airflow will also cause the pneumatic fan blades 64 to rotate, so that the blades continuously dip into the sodium hydroxide solution at the bottom of the treatment tank 4, and under the action of centrifugal rotation, the sodium hydroxide solution forms a layer of water curtain around the pneumatic fan blades 64. At this time, when the gas passes through, the toxic acidic components inside it will react with the sodium hydroxide solution again to achieve secondary purification. In summary, through the front and back step-by-step purification, the solution and the gas are in more comprehensive and continuous contact, which effectively improves the purification effect.

When the pneumatic fan blade 64 rotates, the fourth magnetic plate 84 arranged at the end of the blade will intermittently contact the third magnetic plate 831. When the two are in the magnetic area, the third magnetic plate 831 will be pushed to move upward, so that the liquid guide rod 83 and the piston plate 821 will retract into the piston cylinder 82. At this time, when the liquid guide rod 83 moves up, the top of the liquid guide hole 832 will be connected with the inner cavity of the liquid storage box 81. At this time, the high-concentration sodium hydroxide solution stored in the liquid storage box 81 will fall and be added to the processing tank 4. Then, when the two leave the magnetic area, the liquid guide rod 83 will be reset under the rebound action of the second spring 822, so as to realize the liquid guide hole 832 is blocked, and new solution is continuously added to the treatment tank 4 in this way, so as to avoid the concentration of the solution in the treatment tank 4 from decreasing and improve the treatment effect; and the solution sprayed downward by the atomizing nozzle 651 will flow back into the treatment tank 4. At this time, the particulate matter in the air and the neutralization reaction products carried by the solution will be collected in the treatment tank 4. As the solution in the treatment tank 4 is continuously drawn upward along the liquid extraction pipe 65, the solution in the treatment tank 4 will quickly filter the plate 42 and the guide pipe 421 to move toward the input end of the liquid extraction pipe 65 in the filter tank 41. When the liquid passes through the guide pipe 421, the internal one-way valve will be opened, so that the particulate matter and the reaction products will be separated. The product enters the filter tank 41, and then the solution will be continuously pumped away, while the particles and reaction products will be filtered in the filter tank 41, which improves the cleanliness of the solution inside, facilitates dipping and swinging to form a water curtain, and also reduces the wear of the particles and reaction products on the pneumatic fan blades 64, thereby improving the durability of the pneumatic fan blades 64; and the solution in the treatment tank 4 continuously flows rapidly into the filter tank 41, which will drive the pneumatic fan blades 64 to rotate faster, achieve a denser water curtain effect, and improve the neutralization and purification effect; and when the piston plate 821 retracts into the piston cylinder 82, it will squeeze the gas in the piston cylinder 82, so that the gas with The thrust airflow is charged into the filter tank 41 along the air guide pipe 85, realizing the backwash of the filter plate 42, avoiding excessive filter material adhering to the water inlet surface thereof, and effectively improving the use effect of the filter plate 42. When the piston plate 821 is reset, a suction effect will be generated in the piston cylinder 82, thereby sucking air from the activated carbon box 31, so that some harmful gas molecules attached to the activated carbon inside the activated carbon box 31 are sucked back into the piston cylinder 82. Subsequently, the above contents are repeated, and the adsorbed harmful gas molecules will be charged into the filter tank 41 with the backwash effect, realizing the re-purification of the harmful gas molecules, improving the purification effect, and ensuring the quality of the exhaust air.

After being treated, the toxic gas will continue to be sucked into the liquid retaining groove 5, and the incoming gas will collide with the upper baffle 71 and the lower baffle 72, and through the special structural setting of the upper baffle 71 and the lower baffle 72, the solution entrained in the gas is blocked and retained, allowing the gas to partially pass through, effectively reducing the loss of the solution, and when the driving impeller 663 rotates, the second magnetic plate 753 set at the end of its blade will repel the first magnetic plate 751, and when the two are in the area of magnetic contact, the first magnetic plate 751 will retract into the gas filling groove 75, thereby compressing the gas in the gas filling groove 75 and making This part of gas enters the inner cavity of the spring telescopic rod 74 through the air guide groove 754, so that the spring telescopic rod 74 pushes the lower baffle 72 to move, and the lower baffle 72 also pushes the lower baffle 72 to move at the same time. Then, when the two are separated from the magnetic area, the spring telescopic rod 74 will retract and reset, so that the upper baffle 71 and the lower baffle 72 move in the opposite direction again, and so on and so forth, so as to better block the solution, and the inertia and vibration generated by the reciprocating movement will cause the solution attached to the upper baffle 71 and the lower baffle 72 to quickly flow back into the processing tank 4, so that the blown away solution can quickly flow back and be replenished, thereby ensuring the purification effect.

Embodiment 2

Basically the same as the first embodiment, on the basis of the first embodiment, a method for removing toxic gases used in the chemical industry is proposed;

Referring to Figures 1 to 8, a method for removing toxic gases used in the chemical industry, the specific steps are as follows:

Step 1: Using absorption liquid to absorb and purify the toxic gas;

The driving motor 62 is turned on to drive the guide blade 61 to rotate, thereby generating a suction effect in the treatment box 1, so that the toxic gas in the chemical production area enters the treatment box 1 along the air inlet pipe 21, and under the thrust of the fast-flowing gas, the driving impeller 663 will be driven to rotate first, so that it drives the extraction blade 662 in the extraction box 66 to rotate, so that the sodium hydroxide solution is extracted from the bottom of the treatment tank 4 through the extraction pipe 65, and then sprayed downward by the atomizing nozzle 651, so that the acidic toxic gas contacts with the sodium hydroxide solution and undergoes a neutralization reaction, thereby achieving the first purification. Secondly, the airflow will also cause the pneumatic blade 64 to rotate, so that the blade continuously dips into the sodium hydroxide solution at the bottom of the treatment tank 4, and under the action of centrifugal rotation, the sodium hydroxide solution forms a layer of water curtain around the pneumatic blade 64. At this time, when the gas passes through, the toxic acidic components inside it will undergo a neutralization reaction with the sodium hydroxide solution again, thereby achieving a second purification. In summary, through the front and back step-by-step purification, the solution and the gas are in more comprehensive and continuous contact, which effectively improves the purification treatment effect.

Step 2: During the absorption and purification, new absorption liquid is continuously added to the treatment box 1;

When the pneumatic fan blade 64 rotates, the fourth magnetic plate 84 arranged at the end of the blade will intermittently contact the third magnetic plate 831. When the two are in the magnetic area, the third magnetic plate 831 will be pushed to move upward, so that the liquid guiding rod 83 and the piston plate 821 will retract into the piston cylinder 82. At this time, when the liquid guiding rod 83 moves upward, the top of the liquid guiding hole 832 will be connected with the inner cavity of the liquid storage box 81. At this time, the high-concentration sodium hydroxide solution stored in the liquid storage box 81 will fall and be added to the treatment tank 4. Then, when the two are out of the magnetic area, the liquid guiding rod 83 will be reset under the rebound action of the second spring 822 to achieve the blocking of the liquid guiding hole 832. In this way, new solution is continuously added to the treatment tank 4 to avoid the reduction of the solution concentration in the treatment tank 4, thereby improving the treatment effect.

Step 3: filtering the particulate matter contained in the gas and the absorption reaction products;

The solution sprayed downward by the atomizing nozzle 651 will flow back into the treatment tank 4. At this time, the particulate matter in the air and the neutralization reaction products carried by the solution will all be collected in the treatment tank 4. As the solution in the treatment tank 4 is continuously drawn upward along the liquid extraction pipe 65, the solution in the treatment tank 4 will quickly filter the plate 42 and the guide pipe 421 to move toward the input end of the liquid extraction pipe 65 in the filter tank 41. When the liquid passes through the guide pipe 421, its internal one-way valve will be opened, allowing the particulate matter and the reaction products to enter the filter tank 41. Then the solution will be continuously drawn away, while the particulate matter and the reaction products will be filtered in the filter tank 41, thereby improving the cleanliness of the solution inside, facilitating dipping and swinging to form a water curtain, and also reducing the wear of the particulate matter and the reaction products on the pneumatic fan blades 64, thereby improving the durability of the pneumatic fan blades 64. In addition, the solution in the treatment tank 4 continuously flows rapidly into the filter tank 41, thereby promoting the pneumatic fan blades 64 to rotate faster, achieving a denser water curtain effect, and improving the neutralization and purification effect.

When the piston plate 821 retracts into the piston cylinder 82, the gas in the piston cylinder 82 will be squeezed, and under this squeezing effect, the one-way valve in the air guide pipe 85 will be opened, so that the airflow with thrust will be filled into the filter tank 41 along the air guide pipe 85, so as to realize the recoil of the filter plate 42, avoid excessive filter material adhering to its water inlet surface, and effectively improve the use effect of the filter plate 42. When the piston plate 821 is reset, a suction effect will be generated in the piston cylinder 82, and this suction will open the one-way valve in the air suction pipe 851, so as to inhale air from the activated carbon box 31, so that some harmful gas molecules attached to the activated carbon inside the activated carbon box 31 are re-sucked into the piston cylinder 82, and then the above contents are repeated, and the adsorbed harmful gas molecules will be filled into the filter tank 41 with the recoil effect, so as to realize the re-purification of the harmful gas molecules, improve the purification effect, and ensure the quality of the exhaust air.

Step 4: Block the moisture in the purified gas and make it flow back;

After being treated, the toxic gas will continue to be sucked into the liquid retaining groove 5, and the incoming gas will collide with the upper baffle 71 and the lower baffle 72, and through the special structural setting of the upper baffle 71 and the lower baffle 72, the solution entrained in the gas is blocked and retained, allowing the gas to partially pass through, effectively reducing the loss of the solution, and when the driving impeller 663 rotates, the second magnetic plate 753 set at the end of its blade will repel the first magnetic plate 751, and when the two are in the area of magnetic contact, the first magnetic plate 751 will retract into the gas filling groove 75, thereby compressing the gas in the gas filling groove 75 and making This part of gas enters the inner cavity of the spring telescopic rod 74 through the air guide groove 754, so that the spring telescopic rod 74 pushes the lower baffle 72 to move, and the lower baffle 72 also pushes the lower baffle 72 to move at the same time. Then, when the two are separated from the magnetic area, the spring telescopic rod 74 will retract and reset, so that the upper baffle 71 and the lower baffle 72 move in the opposite direction again, and so on and so forth, so as to better block the solution, and the inertia and vibration generated by the reciprocating movement will cause the solution attached to the upper baffle 71 and the lower baffle 72 to quickly flow back into the processing tank 4, so that the blown away solution can quickly flow back and be replenished, thereby ensuring the purification effect.

The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims (10)

1. A toxic gas removal device for chemical industry, comprising a processing box (1) and an air inlet bin (2) and an air outlet bin (3) fixed on both sides thereof and connected thereto, characterized in that a processing tank (4) and a liquid retaining tank (5) are respectively provided in the processing box (1), an activated carbon box (31) is fixedly connected to the inlet end of the air outlet bin (3), and further comprising: A liquid suction component (6), the liquid suction component (6) being arranged in the treatment tank (4) and used for performing a neutralization reaction between the toxic gas and the absorption liquid; A shielding mechanism (7), the shielding mechanism (7) being arranged in the liquid blocking groove (5) and used for blocking the liquid part in the treated gas and reflowing it for utilization; A liquid replenishing mechanism (8), wherein the liquid replenishing mechanism (8) is arranged on the top of the processing box (1) and is used to automatically replenish the absorption liquid into the processing tank (4) during the processing process. 2. A toxic gas removal device for chemical industry according to claim 1, characterized in that the liquid suction component (6) comprises a guide blade (61), the guide blade (61) is rotatably connected to the inner wall of the gas outlet bin (3), the outer wall of the gas outlet bin (3) is fixedly connected to a drive motor (62), the output shaft of the drive motor (62) is fixedly connected to the rotating shaft of the guide blade (61), the side wall of the treatment tank (4) is fixedly connected to a mounting rod (63), the other end of the mounting rod (63) is rotatably connected to a pneumatic blade (64), and the bottom blade of the pneumatic blade (64) extends below the liquid level of the treatment tank (4) cavity. 3. A toxic gas removal device for chemical industry according to claim 2, characterized in that a liquid extraction pipe (65) is fixedly connected inside the treatment tank (4), the top end of the liquid extraction pipe (65) extends through the top of the air inlet bin (2), and the output end of the liquid extraction pipe (65) is fixedly connected to an atomizing nozzle (651), the outer wall of the liquid extraction pipe (65) is fixed and connected to a liquid extraction box (66), the middle part of the liquid extraction box (66) is rotatably connected to a rotating ring (661), the inner wall of the rotating ring (661) is fixedly connected to a liquid extraction blade (662), and the outer wall of the rotating ring (661) is connected to a driving impeller (663). 4. A toxic gas removal device for chemical industry according to claim 3, characterized in that a filter tank (41) is provided at the bottom of the treatment tank (4), a filter plate (42) is fixedly connected between the filter tank (41) and the treatment tank (4), a guide pipe (421) is fixedly connected to the middle of the filter plate (42), two ends of the guide pipe (421) are respectively connected to the filter tank (41) and the treatment tank (4), and a one-way valve is arranged in the guide pipe (421), the input end of the liquid extraction pipe (65) passes through the filter plate (42) and extends into the filter tank (41) to be connected thereto, and a filter screen structure identical to that of the filter plate (42) is arranged in the input end of the liquid extraction pipe (65), and a drain pipe is connected to the outer wall of the filter tank (41). 5. A toxic gas removal device for chemical industry according to claim 3, characterized in that the shielding mechanism (7) comprises an upper baffle (71) and a lower baffle (72), the upper baffle (71) and the lower baffle (72) are both rotatably connected to the inside of the liquid retaining tank (5), the upper baffle (71) and the lower baffle (72) are arranged crosswise, the extension line of the upper baffle (71) intersects with the lower baffle (72), the side wall of the upper baffle (71) is provided with blocking strips (711) at equal intervals, the side wall of the upper baffle (71) is hinged with a first connecting rod (73), and the other end of the first connecting rod (73) is hinged to the top of the lower baffle (72). 6. A poisonous gas removal device for chemical industry according to claim 5, characterized in that a spring telescopic rod (74) is fixedly connected to the bottom of the liquid retaining groove (5), a second connecting rod (741) is hinged to the top of the spring telescopic rod (74), the other end of the second connecting rod (741) is hinged to the side wall of the lower baffle (72), an air filling groove (75) is provided in the central disk of the pneumatic fan blade (64), a first magnetic plate (751) is slidably connected in the air filling groove (75), a first spring (752) is fixedly connected between the first magnetic plate (751) and the air filling groove (75), a second magnetic plate (753) is fixedly connected to the blade end of the driving impeller (663), the second magnetic plate (753) and the first magnetic plate (751) repel each other magnetically, and an air guide groove (754) is provided inside the mounting rod (63), and the two ends of the air guide groove (754) are respectively connected to the air filling groove (75) and the inner cavity of the spring telescopic rod (74). 7. A poisonous gas removal device for chemical industry according to claim 4, characterized in that the liquid replenishing mechanism (8) comprises a liquid storage box (81), the liquid storage box (81) is fixedly connected to the top of the processing box (1), a piston cylinder (82) is fixedly connected in the liquid storage box (81), a piston plate (821) is slidably connected in the piston cylinder (82), a second spring (822) is fixedly connected between the top of the piston plate (821) and the piston cylinder (82), a liquid guide rod (83) is fixedly connected to the bottom of the piston plate (821), the liquid guide rod (83) extends through the processing tank (4), and a third magnetic plate (831) is fixedly connected to the bottom end of the liquid guide rod (83), a liquid guide hole (832) is opened in the middle of the liquid guide rod (83) and the third magnetic plate (831), and a fourth magnetic plate (84) is fixedly connected to the blade end of the pneumatic fan blade (64), and the fourth magnetic plate (84) and the third magnetic plate (831) are magnetically repelled from each other. 8. A toxic gas removal device for chemical industry according to claim 7, characterized in that the piston cylinder (82) is connected to the outside with an air guide pipe (85), the other end of the air guide pipe (85) passes through the middle of the activated carbon box (31) and is connected to the inner cavity of the filter tank (41), and the side wall of the air guide pipe (85) located in the activated carbon box (31) is connected to the suction pipe (851) at equal intervals, and one-way valves are provided at one end of the air guide pipe (85) close to the filter tank (41) and in the suction pipe (851). 9. A toxic gas removal device for chemical industry according to claim 1, characterized in that the end of the air inlet bin (2) away from the processing box (1) is connected to an air inlet pipe (21), the end of the air outlet bin (3) away from the processing box (1) is connected to an air outlet pipe (32), and the air outlet pipe (32) is arranged to be inclined upward. 10. A method for removing toxic gases used in the chemical industry, using the toxic gas removal device used in the chemical industry according to any one of claims 1 to 9, characterized in that the specific steps are as follows: Step 1: Using absorption liquid to absorb and purify the toxic gas; Step 2: During the absorption and purification process, new absorption liquid is continuously added to the treatment box (1); Step 3: filtering the particulate matter contained in the gas and the absorption reaction products; Step 4: Block the moisture in the purified gas and make it flow back.