Waste gas treatment equipment and method for chemical safety engineering

Abstract

The invention discloses waste gas treatment equipment and method for chemical safety engineering, and relates to the technical field of waste gas treatment. The waste gas treatment device comprises a treatment tank provided with a waste gas inlet pipe, and further comprises an adsorption box, and the lower end of the waste gas inlet pipe is communicated with the adsorption box; the adsorption treatment unit comprises a filtering assembly, an adsorption assembly and a desorption assembly; a purification treatment unit is arranged in the purification cylinder; the purification treatment unit comprises a flocculation assembly and a heating assembly. The waste gas treatment device has the advantages that the waste gas is relatively thoroughly purified by adopting the modes of multi-stage gradient filtration, activated carbon adsorption and purification and flocculation, heat energy of the waste gas can be converted and utilized, desorption regeneration of an activated carbon adsorption plate and concentration and collection of organic compounds are realized, non-stop desorption is realized, the waste gas treatment efficiency is effectively improved, and the waste gas treatment cost is reduced. And meanwhile, the discharged high-purity organic concentrated gas is recycled, so that efficient energy conservation and emission reduction are realized.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of waste gas treatment, in particular to a waste gas treatment equipment and method for chemical safety engineering. BACKGROUND

[0002] When the existing chemical enterprises process chemical products, a large amount of organic waste gas will be generated. In order to realize the safe emission of organic waste gas, avoid environmental pollution during waste gas emission, and realize chemical safety production and environmental protection processing, waste gas treatment equipment is usually used to treat waste gas to avoid environmental pollution caused by direct emission of waste gas. The existing waste gas treatment equipment realizes the treatment of waste gas in various ways, such as an organic waste gas treatment device disclosed in CN114870554A, which comprises a primary treatment device, a spray tower, a UV curing furnace, a multi-stage filter, an adsorption cylinder and a regenerative thermal incinerator. The primary treatment device is used to receive paint mist generated by a paint spraying machine and to preliminarily treat the paint mist. The spray tower further treats paint residue and paint mist in the waste gas. The UV curing furnace cures the paint mist in the waste gas.

[0003] The existing treatment equipment usually realizes the treatment of waste gas by filtering and adsorbing. The adsorption part in this treatment method cannot realize desorption and regeneration, so the adsorption part needs to be replaced after working for a period of time. At the same time, the organic compounds accumulated in the adsorption part after adsorption cannot be recycled and reused. For example, the existing technology mentioned above uses an adsorption cylinder to realize the adsorption treatment of organic compounds in waste gas, but cannot realize the desorption and regeneration of the adsorption cylinder, so that the organic compounds will gradually accumulate in the adsorption cylinder and need to be replaced regularly, which has low treatment efficiency. At the same time, the organic compounds accumulated in the adsorption cylinder after adsorption treatment cannot be recycled, which is relatively wasteful and has certain limitations.

[0004] Therefore, it is urgent to design a waste gas treatment equipment and method for chemical safety engineering to solve the above problems. SUMMARY

[0005] In view of the deficiencies of the prior art, the present application provides a waste gas treatment equipment and method for chemical safety engineering, which solves the problems raised in the background art.

[0006] To achieve the above purpose, the present application realizes the following technical scheme: a waste gas treatment equipment for chemical safety engineering, comprising a treatment tank provided with a waste gas inlet pipe, further comprising: An adsorption box is arranged in the treatment tank, and the lower end of the waste gas inlet pipe is communicated with the adsorption box. The adsorption treatment unit is arranged in the adsorption box and comprises a filtering assembly, an adsorption assembly and a desorption assembly, wherein the filtering assembly is internally provided with a plurality of sieve filter plates for filtering solid impurities in the exhaust gas, the adsorption assembly is internally provided with two activated carbon adsorption plates for adsorbing organic compounds in the exhaust gas, and the desorption assembly is used for automatically desorbing the activated carbon adsorption plates after adsorption. The purification cylinder is arranged in the treatment tank and internally provided with a purification treatment unit. The purification treatment unit comprises a coagulation assembly and a heating assembly, wherein the coagulation assembly is internally filled with purification water for coagulation purification treatment of the exhaust gas, the heating assembly is used for heating and dehumidifying the purified air, and cooperates with the desorption assembly to realize desorption and concentration recovery of the organic compounds.

[0007] Preferably, the filtering assembly comprises a filtering box fixedly installed in the adsorption box, the filtering box is communicated with the exhaust gas inlet pipe, a plurality of sieve filter plates are fixedly installed in the filtering box, the hole diameters of the filtering holes in the plurality of sieve filter plates are sequentially reduced from top to bottom, and the treatment tank, the adsorption box and the purification cylinder are all provided with an inspection door.

[0008] Preferably, the adsorption assembly comprises two air isolation plates fixedly installed in the adsorption box, the filtering box is located between the two air isolation plates, two limiting sliding plates are fixedly installed in the adsorption box, a translation frame is slidingly installed between the two limiting sliding plates, translation openings matched with the translation frame are formed in the two air isolation plates, two activated carbon adsorption plates are fixedly installed in the translation frame, and a position adjusting mechanism is installed between the translation frame and the adsorption box.

[0009] Preferably, the position adjusting mechanism comprises two reset spring rods fixedly installed between the translation frame and the inner wall of the adsorption box and used for resetting, a control cylinder is fixedly installed in the adsorption box, a memory alloy spring is fixedly installed in the control cylinder, a heat conduction frame slidingly connected with the control cylinder is fixedly installed on the memory alloy spring, and the end portion of the heat conduction frame penetrates through the translation frame and is clamped and connected on one of the activated carbon adsorption plates.

[0010] Preferably, the coagulation assembly comprises a servo motor fixedly installed at the bottom of the treatment tank, a drive roller is fixedly installed on the driving end of the servo motor and rotationally connected with the purification cylinder, a gas guide member is fixedly installed between the two air isolation plates, a waste gas guide pipe for conducting the exhaust gas is fixedly communicated between the gas guide member and the purification cylinder, and a stirring mechanism is arranged in the purification cylinder.

[0011] Preferably, the stirring mechanism comprises a one-way bearing one arranged on the drive roller and matched with the forward rotation of the drive roller, a stirring impeller for stirring the purification water is fixedly installed on the one-way bearing one, and a coagulation inlet pipe for injecting a coagulant is fixedly communicated between the treatment tank and the purification cylinder.

[0012] Preferably, the heating assembly comprises an upper support ring and a lower support ring fixedly installed in the purification cylinder, and a plurality of support sliding rods are fixedly installed between the upper support ring and the lower support ring, the purified water is filled in the bottom of the purification cylinder, and the liquid surface of the purified water is located below the lower support ring, a lifting pressure plate is slidingly installed between the plurality of support sliding rods, a plurality of contraction spring rods are fixedly installed between the lifting pressure plate and the lower support ring, and a gas guide mechanism is installed between the lifting pressure plate and the driving roller.

[0013] Preferably, the gas guide mechanism comprises a rotating ring rotatably installed on the lifting pressure plate, a plurality of upper gas pipes for guiding gas are fixedly communicated on the lifting pressure plate, two permanent magnetic shielding plates for shielding the plurality of upper gas pipes are fixedly installed on the rotating ring, a one-way bearing two is arranged on the driving roller and cooperates with reverse rotation of the driving roller, two driving frames are fixedly installed on the one-way bearing two, and an electromagnetic adsorption plate cooperated with the corresponding permanent magnetic shielding plate is fixedly installed on each driving frame. A heating pot is fixedly installed in the purification cylinder and located above the upper support ring, a water guide spiral groove is formed in the heating pot, and a water collecting pipe cooperated with the water guide spiral groove is arranged on the lifting pressure plate.

[0014] Preferably, the desorption assembly comprises two hot air inlet pieces fixedly installed in the adsorption box, and the two hot air inlet pieces are respectively located between the corresponding gas separation plate and the side wall of the adsorption box, the lower ends of the two hot air inlet pieces are in communication with the heating pot, two telescopic heat conduction rods for conducting residual heat are fixedly installed between the translation frame and the heating pot, a plurality of exhaust pipes are fixedly communicated on the adsorption box, and each exhaust pipe is located above the corresponding hot air inlet piece, a collecting elbow pipe is fixedly communicated on the upper portions of the plurality of exhaust pipes, and a concentration exhaust pipe for discharging concentrated gas is fixedly communicated on the collecting elbow pipe.

[0015] A waste gas treatment method for chemical safety engineering is used for the waste gas treatment device for chemical safety engineering, and comprises the following steps: S1, injecting the waste gas to be treated into the adsorption box through the waste gas inlet pipe, and performing multi-stage filtration treatment on the solid particles in the waste gas through the filtration assembly; S2, adsorbing and removing the organic compounds in the waste gas by the activated carbon adsorption plate in the adsorption assembly; S3, injecting the removed waste gas into the purified water in the purification cylinder, and further removing the impurities in the waste gas by cooperating with the flocculation assembly; S4, converting the flocculation-purified waste gas into harmless gas and injecting it into the heating assembly for heating and dehumidification; S5, the hot air after heating and dehumidification is injected into the adsorption box through the cooperation of the desorption assembly, and the activated carbon adsorption plate after adsorption is subjected to hot air desorption, and the concentrated gas containing concentrated organic compounds after desorption is led out and recovered.

[0016] The application provides a waste gas treatment equipment and method for chemical safety engineering. 1. The waste gas treatment equipment can efficiently remove solid impurities of different particle sizes in the waste gas through multi-stage screening filter plates, that is, the multi-stage gradient filtration design can more thoroughly remove impurities in the waste gas and lay a good foundation for subsequent adsorption and flocculation treatment, thereby achieving better treatment effect.

[0017] 2. The waste gas treatment equipment can more thoroughly remove organic compounds in the waste gas through the adsorption of activated carbon adsorption plates after waste gas filtration, and can realize more thorough purification treatment of the waste gas by cooperating with the purification of purified water and the flocculation and precipitation of a flocculating agent.

[0018] 3. The waste gas treatment equipment can utilize and convert the heat of the waste gas during desorption, and can heat and dehumidify the purified air by cooperating with a heating pot, thereby realizing secondary utilization of the heat in the waste gas, avoiding waste of heat energy, realizing dehumidification of the purified air, and being lower in energy consumption and more energy-saving.

[0019] 4. The waste gas treatment equipment can blow the hot air after dehumidification to the activated carbon adsorption plate to realize desorption and regeneration and concentration of organic compounds therein, thereby avoiding affecting the adsorption treatment of the front waste gas during desorption, realizing desorption without shutdown, and converting the organic concentrated gas into organic concentrated gas for recycling and reuse, thereby effectively avoiding waste of organic compounds.

[0020] In summary, the application realizes more thorough purification treatment of the waste gas by adopting multi-stage gradient filtration, activated carbon adsorption and purification, and flocculation, can convert and utilize the heat energy of the waste gas, realizes desorption and regeneration of the activated carbon adsorption plate and concentration and collection of organic compounds, realizes desorption without shutdown, effectively improves the waste gas treatment efficiency, discharges high-purity organic concentrated gas for recycling and reuse, and realizes efficient energy saving and emission reduction.

[0021] Other features and advantages of the application will be set forth in the specification, and in part will become apparent to those skilled in the art upon examination of the following or can be learned by practice of the application. The objects and other advantages of the application can be realized and attained by the structure particularly pointed out in the written description and claims hereof. BRIEF DESCRIPTION OF DRAWINGS

[0022] The specific embodiments of the present application will be further described in detail below with reference to the accompanying drawings, wherein: Figure 1 A structure schematic view of a waste gas treatment equipment for chemical safety engineering according to the present application is shown in the figure; Figure 2 A structure schematic view of a waste gas treatment equipment for chemical safety engineering according to the present application is shown in the figure; Figure 1 A structure schematic view of a waste gas treatment equipment for chemical safety engineering according to the present application is shown in the figure; Figure 3 A structure schematic view of a waste gas treatment equipment for chemical safety engineering according to the present application is shown in the figure; Figure 2 A structure schematic view of a waste gas treatment equipment for chemical safety engineering according to the present application is shown in the figure; Figure 4 A structure schematic view of a waste gas treatment equipment for chemical safety engineering according to the present application is shown in the figure; Figure 2 A structure schematic view of a waste gas treatment equipment for chemical safety engineering according to the present application is shown in the figure; Figure 5 A structure schematic view of a waste gas treatment equipment for chemical safety engineering according to the present application is shown in the figure; Figure 4 A structure schematic view of a waste gas treatment equipment for chemical safety engineering according to the present application is shown in the figure; Figure 6 A structure schematic view of a waste gas treatment equipment for chemical safety engineering according to the present application is shown in the figure; Figure 5 A structure schematic view of a waste gas treatment equipment for chemical safety engineering according to the present application is shown in the figure; Figure 7 A structure schematic view of a waste gas treatment equipment for chemical safety engineering according to the present application is shown in the figure; Figure 6 A structure schematic view of a waste gas treatment equipment for chemical safety engineering according to the present application is shown in the figure; Figure 8 A structure schematic view of a waste gas treatment equipment for chemical safety engineering according to the present application is shown in the figure; Figure 6 A structure schematic view of a waste gas treatment equipment for chemical safety engineering according to the present application is shown in the figure; Figure 9 A structure schematic view of a waste gas treatment equipment for chemical safety engineering according to the present application is shown in the figure; Figure 8 A structure schematic view of a waste gas treatment equipment for chemical safety engineering according to the present application is shown in the figure; Figure 10 A structure schematic view of a waste gas treatment equipment for chemical safety engineering according to the present application is shown in the figure; Figure 8 A structure schematic view of a waste gas treatment equipment for chemical safety engineering according to the present application is shown in the figure; Figure 11 A structure schematic view of a waste gas treatment equipment for chemical safety engineering according to the present application is shown in the figure; Figure 10 A structure schematic view of a waste gas treatment equipment for chemical safety engineering according to the present application is shown in the figure; Figure 12 A structure schematic view of a waste gas treatment equipment for chemical safety engineering according to the present application is shown in the figure; Figure 4 A structure schematic view of a waste gas treatment equipment for chemical safety engineering according to the present application is shown in the figure; Figure 13 A structure schematic view of a waste gas treatment equipment for chemical safety engineering according to the present application is shown in the figure; Figure 12 A structure schematic view of a waste gas treatment equipment for chemical safety engineering according to the present application is shown in the figure; Figure 14 A structure schematic view of a waste gas treatment equipment for chemical safety engineering according to the present application is shown in the figure; Figure 13 A structure schematic view of a waste gas treatment equipment for chemical safety engineering according to the present application is shown in the figure; Figure 15 A structure schematic view of a waste gas treatment equipment for chemical safety engineering according to the present application is shown in the figure; Figure 13 A structure schematic view of a waste gas treatment equipment for chemical safety engineering according to the present application is shown in the figure; Figure 16 A structure schematic view of a waste gas treatment equipment for chemical safety engineering according to the present application is shown in the figure; Figure 15 A structure schematic view of a waste gas treatment equipment for chemical safety engineering according to the present application is shown in the figure; Figure 17 A structure schematic view of a waste gas treatment equipment for chemical safety engineering according to the present application is shown in the figure. Figure 16 A structure schematic view of a waste gas treatment equipment for chemical safety engineering according to the present application is shown in the figure.

[0023] Fig. 1: 1 processing tank, 2 exhaust gas inlet pipe, 3 concentrated exhaust pipe, 4 adsorption box, 5 purification cylinder, 6 servo motor, 7 collection folding pipe, 8 exhaust gas guide pipe, 9 control cylinder, 10 telescopic heat conduction rod, 11 gas barrier plate, 12 translation frame, 13 filter box, 14 exhaust pipe, 15 hot air inlet, 16 activated carbon adsorption plate, 17 reset spring rod, 18 heat conduction frame, 19 screening filter plate, 20 memory alloy spring, 21 heating pot, 22 stirring impeller, 23 lower support ring, 24 drive roller, 25 one-way bearing I, 26 support slide rod, 27 pressure relief disc, 28 contraction spring rod, 29 one-way bearing II, 30 permanent magnet shielding plate, 31 drive frame, 32 rotating ring, 33 upper support ring, 34 upper air pipe, 35 electromagnetic adsorption plate, 36 limit slide plate. DETAILED DESCRIPTION

[0024] 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 some of the embodiments of the present application, not all.

[0025] Embodiment one: refer to Figures 1-3 A waste gas treatment equipment for chemical safety engineering, comprising a processing tank 1 provided with a waste gas inlet pipe 2, and organic compound-containing waste gas is injected into the processing tank 1 through the waste gas inlet pipe 2, and the organic waste gas is purified and treated by the waste gas treatment equipment.

[0026] The waste gas treatment equipment further comprises: An adsorption box 4 is arranged in the processing tank 1, and the lower end of the waste gas inlet pipe 2 is in communication with the adsorption box 4, and the organic waste gas is injected into the adsorption box 4 through the waste gas inlet pipe 2 for filtration and adsorption treatment.

[0027] An adsorption treatment unit is arranged in the adsorption box 4, and the adsorption treatment unit can completely filter out impurities of different particle sizes in the organic waste gas by adopting a multi-stage gradient filtration mode, and can achieve more complete adsorption removal of organic compounds in the organic waste gas by adopting an activated carbon adsorption plate 16 adsorption mode, thereby achieving deep purification of the organic waste gas, and the purification effect is better.

[0028] A purification cylinder 5 is arranged in the processing tank 1, and a purification treatment unit is arranged in the purification cylinder 5, and the purification cylinder 5 can further improve the treatment effect of the waste gas by adopting a purification adsorption and flocculation precipitation mode, and can heat the treated waste gas and then guide it back to the adsorption box 4, so as to realize desorption of the activated carbon adsorption plate 16 and concentration and recovery of the organic compounds, thereby realizing deep purification of the waste gas and concentration and recovery of the high-purity organic compound gas.

[0029] Embodiment two: refer to Figures 2-11The difference between this embodiment and Embodiment 1 is that the adsorption treatment unit includes a filtration component, an adsorption component, and a desorption component. The filtration component is provided with multiple sieve filter plates 19 for filtering solid impurities in the waste gas. The adsorption component is provided with two activated carbon adsorption plates 16 for adsorbing organic compounds in the waste gas. The desorption component is used to realize the automatic desorption of the activated carbon adsorption plates 16 after adsorption.

[0030] The filter assembly includes a filter box 13 fixedly installed in the adsorption box 4, and the filter box 13 is connected to the exhaust gas inlet pipe 2. Multiple sieve filter plates 19 are fixedly installed in the filter box 13, and the pore diameter of the filter holes on the multiple sieve filter plates 19 decreases from top to bottom. Organic waste gas enters the filter box 13 inside the adsorption box 4 through the waste gas inlet pipe 2. At this time, multiple sieve filter plates 19 in the filter box 13 will perform sequential gradient filtration on the organic waste gas, thereby efficiently removing solid impurities in the organic waste gas and achieving preliminary purification treatment of the organic waste gas.

[0031] The treatment tank 1, adsorption box 4 and purification cylinder 5 are all equipped with inspection doors, which can be used to inspect and replace the internal structure of the treatment tank 1, adsorption box 4 and purification cylinder 5, and to clean the impurities collected in the filter box 13 in the adsorption box 4.

[0032] The adsorption assembly includes two air-separating plates 11 fixedly installed inside the adsorption box 4, and the filter box 13 is located between the two air-separating plates 11. Two limiting slide plates 36 are fixedly installed inside the adsorption box 4, and a translation frame 12 is slidably installed between the two limiting slide plates 36. Each of the two air-separating plates 11 has a translation opening that cooperates with the translation frame 12. Both activated carbon adsorption plates 16 are fixedly installed inside the translation frame 12. As per the instruction manual Figure 7 As shown, the two air baffles 11 divide the internal space of the adsorption box 4 into three regions. For ease of explanation, the region in the middle of the two air baffles 11 is named the adsorption region, the region on the left side of the two air baffles 11 is named the left desorption region, and the region on the right side of the two air baffles 11 is named the right desorption region. The same principle applies to all other regions, and will not be repeated here.

[0033] Two limiting slide plates 36 are used to limit the translation frame 12, so that the translation frame 12 can only slide between the two limiting slide plates 36 and between the two translation openings, thereby realizing the translation and position adjustment of the two activated carbon adsorption plates 16 on the translation frame 12.

[0034] The initial positions of the two activated carbon adsorption plates 16 on the translation frame 12 are as follows: the left activated carbon adsorption plate 16 is located in the adsorption zone, and the right activated carbon adsorption plate 16 is located in the right desorption zone, as per the instruction manual. Figure 7 The location shown.

[0035] After being filtered by the filter box 13, the organic waste gas enters the adsorption zone and comes into contact with the activated carbon adsorption plate 16 on the left side of the adsorption zone. At this time, the activated carbon adsorption plate 16 will adsorb the organic waste gas, thereby adsorbing the organic compounds in the organic waste gas and removing the organic compounds. The waste gas that passes through the activated carbon adsorption plate 16 after adsorption treatment is named secondary waste gas. The secondary waste gas will continue to be transported downward in the adsorption zone.

[0036] In a further embodiment, an adjustment mechanism is installed between the translation frame 12 and the adsorption box 4. The adjustment mechanism includes two reset spring rods 17 for resetting, which are fixedly installed between the translation frame 12 and the inner wall of the adsorption box 4. A control cylinder 9 is fixedly installed inside the adsorption box 4. A memory alloy spring 20 is fixedly installed inside the control cylinder 9, and a heat conduction frame 18 that is slidably connected to the control cylinder 9 is fixedly installed on the memory alloy spring 20. The end of the heat conduction frame 18 passes through the translation frame 12 and is engaged with one of the activated carbon adsorption plates 16 (i.e., the left activated carbon adsorption plate 16). When the organic waste gas comes into contact with the activated carbon adsorption plate 16 for adsorption, the heat in the organic waste gas will be conducted to the activated carbon adsorption plate 16 and the translation frame 12, and will be conducted through the heat conduction frame 18 to the shape memory alloy spring 20 in the control cylinder 9, thus completing the conduction and utilization of the heat in the organic waste gas.

[0037] When the shape memory alloy spring 20 gradually absorbs heat and heats up to the deformation threshold, the shape memory alloy spring 20 will automatically contract, thereby pulling the heat conduction frame 18 to the left (see instruction manual). Figure 7 (As shown in the direction) When the heat-conducting frame 18 moves to the left, it will pull the translation frame 12 and the activated carbon adsorption plate 16 on the left to move to the left as a whole. When the heat-conducting frame 18 moves to the left and drives the translation frame 12 to move to the maximum position, the activated carbon adsorption plate 16 on the left side of the translation frame 12, which is adsorbing in the front, will move to the left desorption zone, while the activated carbon adsorption plate 16 on the right side will move to the adsorption zone. At this time, the organic waste gas in the adsorption zone will be adsorbed by the activated carbon adsorption plate 16 on the right side, while the activated carbon adsorption plate 16 that has been adsorbed in the left desorption zone will undergo subsequent desorption treatment.

[0038] When the translation frame 12 moves to the left, it will compress the two reset spring rods 17. After the translation frame 12 has moved to the left, the activated carbon adsorption plate 16 on the left side of the translation frame 12 will no longer provide heat to the shape memory alloy spring 20. The shape memory alloy spring 20 will gradually release heat and cool down. When the shape memory alloy spring 20 cools down to the deformation threshold, it will automatically extend and reset. Under the extension of the reset spring rod 17, it will drive the translation frame 12 to move to the right and reset, thereby driving the two activated carbon adsorption plates 16 on it to move to the right. At this time, the activated carbon adsorption plate 16 on the left side will return from the left desorption zone to the adsorption zone, while the activated carbon adsorption plate 16 on the right side will enter the right desorption zone, completing the position adjustment of the two activated carbon adsorption plates 16.

[0039] With the cooperation of the adjustment mechanism, the positions of the two activated carbon adsorption plates 16 on the left and right sides can be adjusted to carry out continuous adsorption and desorption of organic waste gas. That is, in the initial state, the activated carbon adsorption plate 16 on the left side is located in the adsorption zone for adsorption, while the activated carbon adsorption plate 16 on the right side is located in the desorption zone. After adsorption for a period of time, the left activated carbon adsorption plate 16 is moved to the left desorption zone for desorption by the adjustment mechanism, while the right activated carbon adsorption plate 16 enters the adsorption zone for adsorption. When the left activated carbon adsorption plate 16 has finished desorption in the left desorption zone, it will return to the adsorption zone for adsorption again, while the right activated carbon adsorption plate 16 will return to the right adsorption zone for desorption. By repeating the above process, the adsorption and desorption of the two activated carbon adsorption plates 16 can be continuously alternated and adjusted, and the normal adsorption treatment of organic waste gas will not be affected during the adjustment.

[0040] Example 3: Refer to Figures 1-4 as well as Figures 12-17 The difference between this embodiment and embodiment two is that the purification unit includes a flocculation component and a heating component. The flocculation component is filled with purified water for flocculation and purification of the waste gas. The heating component is used to heat and dehumidify the purified air and works with the desorption component to desorb and concentrate organic compounds for recovery.

[0041] The flocculation assembly includes a servo motor 6 fixedly installed at the bottom of the treatment tank 1. A drive roller 24 is fixedly installed on the drive end of the servo motor 6 and is rotatably connected to the purification cylinder 5. An air guide is fixedly installed between the two air baffles 11 and an exhaust gas duct 8 for conducting exhaust gas is fixedly connected between the air guide and the purification cylinder 5. The secondary waste gas adsorbed by the activated carbon adsorption plate 16 will be conducted to the waste gas duct 8 through the gas guide component, and then injected into the purification cylinder 5 through the waste gas duct 8 to complete the transport and conduction of the secondary waste gas.

[0042] The purification cylinder 5 is equipped with a stirring mechanism, which includes a one-way bearing 25 mounted on the drive roller 24. The one-way bearing 25 is engaged with the forward rotation of the drive roller 24. An impeller 22 for stirring the purified water is fixedly mounted on the one-way bearing 25. A flocculant inlet pipe for injecting flocculant is fixedly connected between the treatment tank 1 and the purification cylinder 5. When the secondary exhaust gas enters the purification cylinder 5, it will be directly injected into the purified water inside. At this time, the purified water will purify the secondary exhaust gas. At the same time, the flocculation inlet pipe will inject flocculant into the purified water, so that the flocculant combines with the fine impurities in the secondary exhaust gas and precipitates, thereby achieving the flocculation and purification of the fine impurities in the secondary exhaust gas.

[0043] While the flocculant is being injected, the servo motor 6 will start and drive the drive roller 24 to rotate in the forward direction. When the drive roller 24 rotates in the forward direction, it will drive the one-way bearing 25 and the stirring impeller 22 on it to rotate. When the stirring impeller 22 rotates, it will stir the purified water, so that the purified water, flocculant and secondary waste gas are fully and evenly mixed, thereby improving the purification efficiency of the secondary waste gas and achieving full treatment of impurities in the secondary waste gas.

[0044] In a further embodiment, the heating assembly includes an upper support ring 33 and a lower support ring 23 fixedly installed inside the purification cylinder 5, and a plurality of support slide rods 26 are fixedly installed between the upper support ring 33 and the lower support ring 23. Purified water is filled at the bottom of the purification cylinder 5, and the liquid level of the purified water is located at the lower part of the lower support ring 23. A lifting pressure plate 27 is slidably installed between the plurality of support slide rods 26, and a plurality of retraction spring rods 28 are fixedly installed between the lifting pressure plate 27 and the lower support ring 23. The exhaust gas, after being purified by the purified water, will be transformed into clean gas and will emerge through the surface of the purified water. At the same time, it will accumulate and be temporarily stored at the bottom of the lifting pressure plate 27. During the temporary storage process, the moisture in the clean gas will initially settle, thus achieving initial dehumidification of the clean gas.

[0045] An air guiding mechanism is installed between the lifting pressure plate 27 and the drive roller 24. The air guiding mechanism includes a rotating ring 32 rotatably mounted on the lifting pressure plate 27. Multiple upper air pipes 34 for air guiding are fixedly connected to the lifting pressure plate 27. As clean gas gradually accumulates at the bottom of the lifting pressure plate 27, it will gradually push the lifting pressure plate 27 to move upward between multiple support slide bars 26 (when the lifting pressure plate 27 moves upward, it will compress multiple retraction spring bars 28). When the lifting pressure plate 27 moves to the highest position, exhaust can be performed.

[0046] Two permanent magnet shielding plates 30 for blocking multiple air pipes 34 are fixedly installed on the rotating ring 32. One-way bearing 29 is provided on the drive roller 24, and the one-way bearing 29 cooperates with the reverse rotation of the drive roller 24. Two drive frames 31 are fixedly installed on the one-way bearing 29, and each of the two drive frames 31 is fixedly installed with an electromagnetic adsorption plate 35 that cooperates with the corresponding permanent magnet shielding plate 30. When the permanent magnet baffle 30 is in its initial position, it will block the upper air pipe 34. At this time, the clean gas under the lifting pressure plate 27 cannot be conducted upward through the upper air pipe 34. When the lifting pressure plate 27 moves to its maximum position, the permanent magnet baffle 30 will come into contact with the electromagnetic adsorption plate 35 on the drive frame 31. At this time, the electromagnetic adsorption plate 35 will be energized to generate magnetic force and adsorb the permanent magnet baffle 30. At this time, the electromagnetic adsorption plate 35 and the permanent magnet baffle 30 will form a whole and rotate synchronously.

[0047] After adsorption and fixation are complete, the servo motor 6 can be started to drive the drive roller 24 to rotate in the reverse direction. When the drive roller 24 rotates in the reverse direction, it will drive the one-way bearing 29 to rotate in the reverse direction (at this time, the one-way bearing 25 does not rotate, and the exhaust gas duct 8 is closed to stop supplying secondary exhaust gas into the purification cylinder 5). When the one-way bearing 29 rotates in the reverse direction, it will drive the drive frame 31 and the electromagnetic adsorption plate 35 to rotate. The rotation of the electromagnetic adsorption plate 35 will drive the permanent magnet shielding plate 30 to rotate synchronously until it rotates to the position specified in the instruction manual. Figure 17 As shown, the permanent magnet shielding plate 30 releases its obstruction of the multiple upper air pipes 34, and the clean gas at the bottom of the lifting pressure plate 27 will enter the upper part of the lifting pressure plate 27 through the multiple upper air pipes 34, completing the delivery and conduction of clean gas.

[0048] Once the clean gas has been delivered, the servo motor 6 drives the permanent magnet baffle 30 to continue rotating and return to its original position, thus blocking the multiple upper air pipes 34 again. At this time, the electromagnetic adsorption plate 35 is de-energized and releases its adsorption and fixation on the permanent magnet baffle 30. Then, the multiple retraction spring rods 28 will automatically extend and reset, and under the action of gravity, drive the lifting pressure plate 27 to move down and return to its original position. At this time, the exhaust gas duct 8 can be opened to continue delivering secondary exhaust gas for further purification.

[0049] In a further embodiment, a heating bucket 21 is fixedly installed inside the purification cylinder 5, and the heating bucket 21 is located above the upper support ring 33. Two telescopic heat-conducting rods 10 for conducting waste heat are fixedly installed between the translation frame 12 and the heating bucket 21. A water-guiding spiral groove is opened inside the heating bucket 21, and a water collection pipe that cooperates with the water-guiding spiral groove is provided on the lifting pressure plate 27. Some of the heat inside the translation frame 12 will be conducted to the heating bucket 21 through the telescopic heat-conducting rod 10, so that the residual heat of the heating bucket 21 can be used to realize the secondary reuse of the heat energy in the organic waste gas and effectively reduce energy consumption.

[0050] Clean gas delivered through multiple upper air pipes 34 is injected into the heating hopper 21. The heating hopper 21 then heats the clean gas, achieving both heating and dehumidification. The water vapor separated after dehumidification condenses in the heating hopper 21 and, after cooling and liquefaction, falls into the water collection pipe through the water inlet spiral groove. The water collection pipe can be opened periodically to allow the collected liquefied purified water to return to the purified water in the lower part of the lifting pressure plate 27, thus completing the recycling of purified water and further avoiding waste.

[0051] In a further embodiment, the desorption assembly includes two hot air inlets 15 fixedly installed inside the adsorption box 4, and the two hot air inlets 15 are respectively located between the corresponding air baffle 11 and the side wall of the adsorption box 4, and the lower ends of the two hot air inlets 15 are connected to the heating bucket 21. The heated and dehumidified air in the heating bucket 21 is conducted to the adsorption box 4 through the hot air inlet 15. When the left activated carbon adsorption plate 16 is located in the left desorption zone, the left hot air inlet 15 will open to introduce the hot air into the left desorption zone in the adsorption box 4. When the hot air enters the left desorption zone, it will come into contact with the left activated carbon adsorption plate 16, and the left activated carbon adsorption plate 16 will be desorbed and regenerated. The organic compounds accumulated in the left activated carbon adsorption plate 16 will be exported and exported with the hot air, thereby concentrating the organic compounds. After being mixed with the hot air, they will be converted into concentrated organic gas and exported. Similarly, when the right activated carbon adsorption plate 16 is located in the right desorption zone, the right hot air inlet 15 will open, and the right activated carbon adsorption plate 16 can be desorbed and regenerated.

[0052] Multiple exhaust pipes 14 are fixedly connected to the adsorption box 4, and each exhaust pipe 14 is located above the corresponding hot air inlet 15. The upper part of the multiple exhaust pipes 14 is fixedly connected to a collection baffle 7, and a concentration pipe 3 for discharging concentrated gas is fixedly connected to the collection baffle 7. The concentrated organic gas will be discharged into the collection baffle 7 through the exhaust pipe 14 and discharged to the outside of the treatment tank 1 through the concentration pipe 3, so that the concentrated organic gas can be recycled and reused.

[0053] The specific working principle of this processing equipment is as follows: Organic waste gas enters the adsorption box 4 inside the treatment tank 1 through the waste gas inlet pipe 2. After being filtered by the filter box 13, it enters the adsorption zone and comes into contact with the activated carbon adsorption plate 16 for adsorption treatment. The organic waste gas after adsorption treatment is converted into secondary waste gas. Secondary waste gas is injected into the purification cylinder 5 through the waste gas duct 8. After being purified by purified water and flocculated by flocculant, it is transformed into clean gas and introduced into the heating tank 21. The heating tank 21 heats and dehumidifies the clean gas, turning it into hot air, which is then guided back to the desorption zone in the adsorption box 4 to desorb and regenerate the activated carbon adsorption plate 16. The hot air after desorption and regeneration is transformed into concentrated organic gas and discharged through the concentration pipe 3 for collection, completing the entire process of organic waste gas treatment, purification, and recycling.

[0054] This invention also provides a method for treating waste gas in chemical safety engineering, used in the aforementioned waste gas treatment equipment for chemical safety engineering, comprising the following steps: S1. The waste gas to be treated is injected into the adsorption box 4 through the waste gas inlet pipe 2, and the solid particles in the waste gas are filtered through the filter assembly in multiple stages. S2. The filtered waste gas is adsorbed and removed by the activated carbon adsorption plate 16 in the adsorption component. S3. The removed waste gas is injected into the purified water in the purification cylinder 5, and the waste gas is treated by flocculation with the help of the flocculation component to further remove impurities in the waste gas. S4. The waste gas after condensation and purification is converted into harmless gas and injected into the heating component for heating and dehumidification; S5. The heated and dehumidified hot air is injected into the adsorption box 4 through the desorption component, and the activated carbon adsorption plate 16 after adsorption is desorbed by hot air. The concentrated gas containing concentrated organic compounds after desorption is exported and recovered.

[0055] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A waste gas treatment apparatus for chemical safety engineering, comprising a treatment tank (1) provided with a waste gas inlet pipe (2), characterized in that, Also include: The adsorption box (4) is arranged in the treatment tank (1), and the lower end of the exhaust inlet pipe (2) is communicated with the adsorption box (4); The adsorption treatment unit is arranged in the adsorption box (4), comprising a filter assembly, an adsorption assembly and a desorption assembly, wherein a plurality of screen filter plates (19) for filtering solid impurities in the exhaust gas are arranged in the filter assembly, two activated carbon adsorption plates (16) for adsorbing organic compounds in the exhaust gas are arranged in the adsorption assembly, and the desorption assembly is used to realize the automatic desorption of the activated carbon adsorption plate (16) after adsorption; The purification cylinder (5) is arranged in the treatment tank (1), and the purification treatment unit is arranged in the purification cylinder (5); The purification treatment unit includes a coagulation assembly and a heating assembly, wherein the coagulation assembly is filled with purification water for coagulation purification treatment of the exhaust gas, and the heating assembly is used to realize heating and dehumidification of the purified air, and realizes desorption and concentration recovery of organic compounds in cooperation with the desorption assembly.

2. The waste gas treatment device for chemical safety engineering according to claim 1, characterized in that, The filter assembly includes a filter box (13) fixedly installed in the adsorption box (4), and the filter box (13) is communicated with the exhaust inlet pipe (2), a plurality of screen filter plates (19) are fixedly installed in the filter box (13), and the hole diameters of the filter holes in the plurality of screen filter plates (19) decrease from top to bottom, and the treatment tank (1), the adsorption box (4) and the purification cylinder (5) are provided with an inspection door.

3. The waste gas treatment device for chemical safety engineering according to claim 2, characterized in that, The adsorption assembly includes two air separation plates (11) fixedly installed in the adsorption box (4), and the filter box (13) is located between the two air separation plates (11), two limiting sliding plates (36) are fixedly installed in the adsorption box (4), and a translation frame (12) is slidingly installed between the two limiting sliding plates (36), two air separation plates (11) are provided with translation openings matched with the translation frame (12), two activated carbon adsorption plates (16) are fixedly installed in the translation frame (12), and a position adjusting mechanism is installed between the translation frame (12) and the adsorption box (4).

4. The waste gas treatment device for chemical safety engineering according to claim 3, characterized in that, The position adjusting mechanism includes two reset spring rods (17) fixedly installed between the translation frame (12) and the inner wall of the adsorption box (4) for resetting, a control cylinder (9) is fixedly installed in the adsorption box (4), a memory alloy spring (20) is fixedly installed in the control cylinder (9), a heat conducting frame (18) is slidingly connected with the control cylinder (9) and fixedly installed on the memory alloy spring (20), and the end of the heat conducting frame (18) penetrates through the translation frame (12) and is clamped and connected on one of the activated carbon adsorption plates (16).

5. The waste gas treatment device for chemical safety engineering according to claim 4, characterized in that, The coagulation assembly includes a servo motor (6) fixedly installed at the bottom of the treatment tank (1), a drive roller (24) is fixedly installed on the driving end of the servo motor (6) and rotationally connected with the purification cylinder (5), a gas guide member is fixedly installed between the two air separation plates (11), a waste gas guide pipe (8) for conducting waste gas is fixedly communicated between the gas guide member and the purification cylinder (5), and a stirring mechanism is arranged in the purification cylinder (5).

6. The waste gas treatment device for chemical safety engineering according to claim 5, characterized in that, The stirring mechanism comprises a one-way bearing I (25) arranged on the driving roller (24), the one-way bearing I (25) is matched with the forward rotation of the driving roller (24), a stirring impeller (22) for stirring the purified water is fixedly installed on the one-way bearing I (25), and a flocculation inlet pipe for pouring a flocculating agent is fixedly and communicatively connected between the treatment tank (1) and the purification cylinder (5).

7. The waste gas treatment device for chemical engineering safety engineering according to claim 6, characterized in that, The heating assembly comprises an upper support ring (33) and a lower support ring (23) fixedly installed in the purification cylinder (5), a plurality of support sliding rods (26) are fixedly installed between the upper support ring (33) and the lower support ring (23), purified water is filled in the bottom of the purification cylinder (5), and the liquid level of the purified water is located at the lower part of the lower support ring (23), a lifting pressure plate (27) is slidably installed between the plurality of support sliding rods (26), a plurality of contraction spring rods (28) are fixedly installed between the lifting pressure plate (27) and the lower support ring (23), and a gas guide mechanism is installed between the lifting pressure plate (27) and the driving roller (24).

8. The waste gas treatment device for chemical engineering safety engineering according to claim 7, characterized in that, The gas guide mechanism comprises a rotating ring (32) rotatably installed on the lifting pressure plate (27), a plurality of upper gas pipes (34) for guiding gas are fixedly and communicatively connected to the lifting pressure plate (27), two permanent magnetic shielding plates (30) for shielding the plurality of upper gas pipes (34) are fixedly installed on the rotating ring (32), a one-way bearing II (29) is arranged on the driving roller (24) and matched with the reverse rotation of the driving roller (24), two driving frames (31) are fixedly installed on the one-way bearing II (29), and an electromagnetic adsorption plate (35) matched with the corresponding permanent magnetic shielding plate (30) is fixedly installed on each of the two driving frames (31). A heating pot (21) is fixedly installed in the purification cylinder (5) and located at the upper part of the upper support ring (33), a water guide spiral groove is formed in the heating pot (21), and a water collecting pipe matched with the water guide spiral groove is arranged on the lifting pressure plate (27).

9. The waste gas treatment device for chemical engineering safety engineering according to claim 8, characterized in that, The desorption assembly comprises two hot air inlet pieces (15) fixedly installed in the adsorption box (4) and located between the corresponding air separation plate (11) and the side wall of the adsorption box (4), the lower ends of the two hot air inlet pieces (15) are in communication with the heating pot (21), two telescopic heat conduction rods (10) for conducting residual heat are fixedly installed between the translation frame (12) and the heating pot (21), a plurality of exhaust pipes (14) are fixedly and communicatively connected to the adsorption box (4), each exhaust pipe (14) is located at the upper part of the corresponding hot air inlet piece (15), a collecting elbow (7) is fixedly and communicatively connected to the upper parts of the plurality of exhaust pipes (14), and a concentration exhaust pipe (3) for discharging concentrated gas is fixedly and communicatively connected to the collecting elbow (7).

10. A waste gas treatment method for chemical safety engineering, for the waste gas treatment apparatus for chemical safety engineering according to any one of claims 1 to 9, characterized by, The method comprises the following steps: S1, injecting the waste gas to be treated into the adsorption box (4) through the waste gas inlet pipe (2) and performing multi-stage filtration treatment on the solid particles in the waste gas through the filtration assembly; S2, the filtered waste gas is adsorbed by the activated carbon adsorption plate (16) in the adsorption assembly, and the organic compounds in the waste gas are adsorbed and removed; S3, the removed waste gas is injected into the purification water in the purification cylinder (5), and the waste gas is coagulated and flocculated by the cooperation of the coagulation and flocculation assembly, so as to further remove the impurities in the waste gas; S4, the waste gas after coagulation and flocculation is converted into harmless gas and injected into the heating assembly for heating and dehumidification; S5, the hot air after heating and dehumidification is injected into the adsorption box (4) through the cooperation of the desorption assembly, and the activated carbon adsorption plate (16) after adsorption is heated and desorbed, and the concentrated gas containing concentrated organic compounds after desorption is discharged and recovered.

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