CN110523249B - Industrial waste gas treatment device with monitoring function - Google Patents
Industrial waste gas treatment device with monitoring function Download PDFInfo
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- CN110523249B CN110523249B CN201910931196.9A CN201910931196A CN110523249B CN 110523249 B CN110523249 B CN 110523249B CN 201910931196 A CN201910931196 A CN 201910931196A CN 110523249 B CN110523249 B CN 110523249B
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- 239000002440 industrial waste Substances 0.000 title claims abstract description 18
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- 239000002912 waste gas Substances 0.000 claims abstract description 58
- 238000012806 monitoring device Methods 0.000 claims abstract description 26
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- B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
- B01D53/04—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
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- Environmental & Geological Engineering (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Treating Waste Gases (AREA)
Abstract
The invention discloses an industrial waste gas treatment device with a monitoring function, which comprises a buffer tank, an air inlet fan, a waste gas treatment tank, a filtering device, a first gas monitoring device and a second gas monitoring device, wherein the buffer tank, the air inlet fan, the waste gas treatment tank and the filtering device are sequentially arranged along the air flow direction; the exhaust gas treatment tank comprises a cylindrical treatment tank body, a main stirring device, a gas treatment disc assembly and a gas circulation assembly. According to the industrial waste gas treatment device with the monitoring function, waste gas is filtered in advance through the filter screen in the buffer tank, and then the waste gas is treated through the waste gas treatment tank and the filter device in sequence, so that a good process waste gas treatment effect can be achieved, and the device is simple in structure.
Description
Technical Field
The invention relates to the technical field of waste gas treatment, in particular to an industrial waste gas treatment device with a monitoring function.
Background
The rapid progress of industrialization inevitably produces a large amount of industrial waste gas such as acid waste gas, organic waste gas, etc. The acid waste gas mainly comprises sulfur oxides, nitrogen oxides and H 2 S, chlorine and the like, acid rain is formed due to the fact that a large amount of acid waste gas is discharged, the acid rain has huge damage to the environment, the acid rain has the largest influence on trees in particular, the acid rain can kill the trees and seriously influence the living environment of human beings, so that the environment is particularly concerned worldwide, a plurality of measures are formulated to reduce factories for producing polluted air, and green economy and green life are developed. The organic waste gas comprises formaldehyde, dimethylbenzene, toluene, acetone, butanone, halogen compounds and the like, most of the compounds have pungent odor, the air quality is greatly influenced, the direct contact of the compounds can cause harm to human health, and the inflammable characteristic of VOC waste gas also causes potential safety hazard. The treatment of industrial waste gases is becoming more and more important. However, the existing industrial waste gas treatment system often has a plurality of defects, such as poor treatment effect and substandard waste gas emission; the treatment energy consumption is high and the cost is high; processing systems are bulky, etc.
For example, patent: CN110013721a, it discloses an industrial waste gas treatment system, including main part, retainer plate and water pump, the inside connection valve that is provided with in left side top of main part, and the left side of connection valve is connected with the crossover sub, the inside of retainer plate is provided with micro motor, and the retainer plate is located the inside of crossover sub, micro motor's left end is fixed with the flabellum, the inside cotton and the active carbon of absorbing water that are provided with respectively of upper end of main part, the top of cotton of absorbing water is provided with sealed lid, the inside left side of main part is fixed with the air duct, and the middle part of air duct is provided with the staple bolt. The structure is simple, and when the waste gas treatment mode is single, the waste gas treatment effect is difficult to ensure.
Such as the patent: CN110075666a, which discloses an exhaust gas treatment system, comprises a filtering component, a zeolite rotating wheel, a heat exchanger, a wind mixer and a catalytic burner which are sequentially connected through pipelines, the exhaust gas treatment system further comprises a second filtering component and a dust removing device, one end of the second filtering component is connected with the dust removing device through a pipeline, and the other end of the second filtering component is connected with the heat exchanger through a pipeline. The waste gas treatment system has the advantage of efficiently treating waste gas, but has a complex structure and consumes energy.
Another example is the patent: CN208372775U discloses an exhaust gas treatment system, including the first shell that is used for holding the adsorption liquid, exhaust gas passes a plurality of blades in proper order after getting into from first exhaust gas inlet and discharges from first exhaust gas outlet, exhaust gas treatment system still include the second shell, the second shell be provided with the second exhaust gas inlet that supplies to get into by the purifying gas, supply by purifying gas exhaust gas outlet, it absorbs the adsorption liquid through the blade, then the gas passes through the blade, harmful substance therein is adsorbed by the adsorption liquid, it has reduced the volume of system, still need drive arrangement to drive the blade and rotate when the blade, the energy consumption is big, in addition, the gas after the blade handles directly gets into next operation, lack the regulatory function to exhaust gas treatment effect, and lack the monitoring function to the gas composition of final discharge.
Disclosure of Invention
The present invention is directed to an industrial waste gas treatment device with a monitoring function, and aims at solving at least one of the above problems.
The technical scheme adopted by the invention is as follows: an industrial waste gas treatment device with a monitoring function comprises a buffer tank, an air inlet fan, a waste gas treatment tank, a filtering device, a first gas monitoring device and a second gas monitoring device, wherein the buffer tank, the air inlet fan, the waste gas treatment tank, the filtering device and the first gas monitoring device are sequentially arranged along the air flow direction;
the waste gas treatment tank comprises a cylindrical treatment tank body, a main stirring device arranged in the treatment tank body along the vertical direction, a gas treatment disc assembly which can be rotatably arranged in the treatment tank body around the central axis of the treatment tank body, and a gas circulation assembly which is used for pumping out part of gas at the downstream of the treatment tank body and then conveying the part of gas to the upstream of the treatment tank body;
the gas treatment disc assembly comprises a rotating shaft which is coaxial with the treatment tank body and can be rotatably arranged in the treatment tank body, and at least two turntables which are arranged on the rotating shaft at intervals along the direction of the gas flow; the side wall of the treatment tank body protrudes to the periphery, and a rotating disc groove for accommodating the outer end of the rotating disc is formed on the inner wall of the treatment tank body.
Preferably, the turntable comprises a turntable body fixedly connected with the rotating shaft and concentrically arranged, and a plurality of driving air blades which are arranged on the surface of the turntable body facing the air flow side in an annular array;
the driving wind blade plate is provided with a windward groove.
Preferably, the tray body is made of breathable carbon fiber materials, and the surfaces of two sides of the tray body are provided with diversion channels;
the diversion channel comprises an inner annular groove, an outer annular groove and a plurality of communication holes, wherein the inner annular groove and the outer annular groove are formed in the surface of the disc body, and the communication holes are communicated with the inner annular groove and the outer annular groove.
Preferably, the two turntables are divided into a first turntable and a second turntable in turn along the airflow direction, and auxiliary stirring assemblies are arranged on the surfaces of two sides of the second turntable;
the auxiliary stirring assembly comprises a connecting rod fixedly connected with the surface of the disc body and a plurality of stirring blades fixedly connected on the connecting rod along the axial direction.
Preferably, the surface of the stirring blade is provided with a plurality of liquid storage grooves.
Preferably, the treatment tank body is internally filled with waste gas treatment liquid, at least 2 circulating gas inlets are formed at the upstream of the treatment tank body and above the liquid level, and circulating gas outlets are formed at the downstream of the treatment tank body and above the liquid level;
the gas circulation assembly comprises a circulating gas pipeline which is communicated with the circulating gas outlet and the circulating gas inlet, and a circulating fan which is arranged on the circulating gas pipeline;
when a certain driving fan blade plate on the disc body rotates to be close to the corresponding circulating air inlet, a windward groove on the driving fan blade plate faces the circulating air inlet, so that circulating air entering through the circulating air inlet drives the driving fan blade plate and the disc body to rotate.
Preferably, the side part of the treatment tank body is also provided with an air inlet pipe communicated with the outlet end of the air inlet fan and an air distribution pipe communicated with the air inlet pipe;
the outlet end of the air distribution pipe is cone-shaped.
Preferably, the main stirring device comprises a stirring shaft which is perpendicular to the central axis of the treatment tank body and is rotatably connected with the inner wall of the treatment tank body, a stirring impeller fixedly connected to the lower end of the stirring shaft, and a wind blade fixedly connected to the upper end of the stirring shaft;
the outlet end of the air distribution pipe is arranged at the side part of the air blade and is used for driving the air blade, the stirring shaft and the stirring impeller to rotate through air inlet airflow.
Preferably, the first rotary disc and the second rotary disc divide the treatment tank body to form a first treatment chamber, a second treatment chamber and a third treatment chamber which are sequentially arranged along the airflow direction;
and the first treatment chamber, the second treatment chamber and the third treatment chamber are respectively provided with a liquid inlet and a liquid outlet.
Preferably, a filter screen is arranged in the buffer tank, and a drain outlet is also arranged on the side wall of the buffer tank.
The beneficial effects of the invention are as follows: according to the industrial waste gas treatment device with the monitoring function, waste gas is filtered in advance through the filter screen in the buffer tank, and then the waste gas is treated through the waste gas treatment tank and the filter device in sequence, so that a good process waste gas treatment effect can be achieved, and the device is simple in structure.
According to the invention, the main stirring device is arranged to continuously stir the waste gas treatment liquid in the treatment tank body, so that liquid precipitation can be treated, and the concentration of the waste gas treatment liquid in the treatment tank body is kept uniform, so that the waste gas treatment effect is ensured; on the other hand, a large number of micro-droplets can be generated through stirring, and the micro-droplets are filled in the treatment tank body and on the turntable, so that the contact area and probability of waste gas and treatment liquid can be increased, and the waste gas treatment effect can be improved;
according to the invention, the air inlet is guided by the air distribution pipe, the main stirring device is driven to rotate by utilizing the air flow of the air inlet, and a rotary driving element is not needed to be additionally adopted, so that one driving element can be omitted, the energy consumption is saved, and the equipment is simplified.
According to the invention, the rotatable gas treatment disc assembly is arranged, and the disc body is utilized to rotate continuously, so that new liquid is continuously absorbed from waste gas treatment liquid at the lower part in the treatment tank body, waste gas passes through the disc body from left to right and reacts with the liquid in the disc body in a contact manner, and harmful substances in the waste gas are removed. The tray body can continuously absorb new liquid, so that the liquid in the tray body can be prevented from being saturated or excessively reacted to lose efficacy due to the fact that excessive harmful substances are adsorbed, and the treatment effect of waste gas can be ensured; in addition, through constantly absorbing new liquid, can guarantee that the disk body can absorb a large amount of treatment liquid all the time, maintain high exhaust-gas treatment effect.
According to the invention, the gas circulation assembly is arranged, so that on one hand, the treatment effect of the waste gas treatment tank on the waste gas can be adjusted, the treatment effect of the waste gas can be improved through partial gas circulation purification, and the content of harmful gas in the gas is reduced; on the other hand, the air inlet flow introduced by the air circulation assembly can also provide driving force for the rotation of the turntable, so that one driving element can be omitted, the energy consumption is saved, the equipment is simplified, and multiple purposes are achieved.
According to the invention, the content of main harmful gases in the exhaust gas entering the device and the tail gas treated by the device can be monitored in real time through the first gas monitoring device and the second gas monitoring device, and the treatment effect of the device can be monitored.
Drawings
FIG. 1 is a schematic diagram of an industrial waste gas treatment device with monitoring function according to the present invention;
FIG. 2 is a schematic top view of the main stirring device in the exhaust treatment tank of the present invention;
FIG. 3 is a schematic view of the main stirring device of the present invention;
FIG. 4 is a schematic top view of the first turntable and exhaust gas treatment canister therein according to the present invention;
FIG. 5 is a schematic top view of a second turntable and exhaust gas treatment canister therein according to the present invention;
FIG. 6 is a schematic view of the structure of the secondary stirring assembly of the present invention;
fig. 7 is a schematic structural view of the filtering device of the present invention.
Reference numerals illustrate:
1-a buffer tank; 10-a filter screen; 11-a sewage outlet;
2-an air inlet fan;
3-an exhaust gas treatment tank; 30-treating the tank body; 31-a main stirring device; 32-a gas treatment tray assembly; 33-a gas circulation assembly; 34-a secondary stirring assembly; 35-a first process chamber; 36-a second process chamber; 37-a third process chamber; 300—a recycle gas inlet; 301-a recycle gas outlet; 302, an air inlet pipe; 303-gas distribution pipe; 304-a liquid inlet; 305-a liquid outlet; 306—a rotor groove; 310-stirring shaft; 311-stirring impeller; 312—wind blades; 320-rotating shaft; 321-a turntable; 322-a tray body; 323-driving the wind blade; 324-windward groove; 325-a diversion channel; 326-an inner annular groove; 327-an outer annular groove; 328-a communication hole; 330—a recycle gas line; 331—a circulation fan; 340-connecting rod; 341-stirring blades; 342-a liquid storage groove; 3210—a first carousel; 3211-a second carousel;
4-a filtering device; 40-a housing; 41-a first orifice plate; 42-a non-woven fabric layer; 43-PTFE fiber layer; 44-an activated carbon layer; 45-bamboo charcoal fiber layer; 46-a nano carbon fiber cloth layer; 47-a second orifice plate;
5-a first gas monitoring device;
6-a second gas monitoring device;
7-a first conveying pipeline;
8-a second conveying pipeline.
Detailed Description
The present invention is described in further detail below with reference to examples to enable those skilled in the art to practice the same by referring to the description.
It will be understood that terms, such as "having," "including," and "comprising," as used herein, do not preclude the presence or addition of one or more other elements or groups thereof.
As shown in fig. 1, an industrial waste gas treatment device with a monitoring function of the present embodiment includes a buffer tank 1, an air intake fan 2, a waste gas treatment tank 3, a filter device 4, a first gas monitoring device 5 and a second gas monitoring device 6, which are disposed in this order along the air flow direction, and an air outlet end of the filter device 4.
The exhaust gas treatment tank 3 comprises a cylindrical treatment tank body 30, a main stirring device 31 arranged in the treatment tank body 30 along the vertical direction, a gas treatment disc assembly 32 which is rotatably arranged in the treatment tank body 30 around the central axis of the treatment tank body 30, and a gas circulation assembly 33 which is used for pumping out part of the gas downstream of the treatment tank body 30 and then conveying the part of the gas to the upstream of the treatment tank body 30;
the gas treatment tray assembly 32 includes a rotation shaft 320 which is coaxial with the treatment tank 30 and rotatably disposed in the treatment tank 30, and at least two turntables 321 disposed on the rotation shaft 320 at intervals along the gas flow direction; the sidewall of the process tank 30 is protruded to the outer circumference, and a turntable groove 306 for receiving the outer end of the turntable 321 is formed on the inner wall of the process tank 30.
The treatment tank 30 is filled with an exhaust gas treatment liquid, and the exhaust gas treatment liquid is used for purifying and treating harmful gases in the exhaust gas by utilizing absorption and/or adsorption principles, and the treatment tank is specifically selected conventionally according to main components of the treated exhaust gas, such as an acidic absorption liquid or an alkaline absorption liquid or other absorbents or absorption liquids.
The first gas monitoring device 5 and the second gas monitoring device 6 are devices integrated with a plurality of gas sensors for detecting the content of main harmful substances in the gas entering the exhaust gas treatment device and the finally discharged gas, and are also required to be configured according to the main components of the treated exhaust gas in a conventional selection manner.
It should be noted that, in the embodiment of the invention, the model parameters of the gas monitoring devices are not specifically required, and the function of acquiring the required information can be realized only by directly applying the ready-made gas monitoring devices in the prior art.
The industrial waste gas firstly enters the buffer tank 1 for buffering, is filtered in advance, then enters the waste gas treatment tank 3 for treatment under the action of the air inlet fan 2, a large amount of harmful gas (target pollutant) is removed, and finally enters the filtering device 4 for further filtration and then is discharged.
For example, in one embodiment, the exhaust gas treatment device is used to treat acid exhaust gas, in which the main harmful gas components are: SO (SO) 2 、H 2 S、NO 2 The chlorine gas, the first gas monitoring device 5 and the second gas monitoring device 6 are integrated with SO 2 Sensor, H 2 S sensor, NO 2 A sensor and a chlorine sensor to detect the content of each gas. The exhaust gas treatment liquid may be selected from conventional alkaline absorption liquids, such as sodium hydroxide, to absorb and remove the above gases. Therefore, for the selection of the exhaust gas treatment liquid, and the configuration of the gas sensors integrated in the first gas monitoring device 5 and the second gas monitoring device 6, a person skilled in the art will be able to make routine selections according to the composition of the exhaust gas to be treated. As another example, if an organic waste gas is used to treat, the organic waste gas mainly includes formaldehyde, xylene, toluene, acetone, butanone, the first gas monitoring device 5 and the second gas monitoring device 6 are respectively configured to integrate a formaldehyde sensor, a xylene sensor, a toluene sensor, an acetone sensor, and a Ding Tongchuan sensor to detect the corresponding gas content. And the exhaust gas treatment liquid selects the corresponding conventional organic exhaust gas absorption liquid.
A filter screen 10 is arranged in the buffer tank 1, and a sewage outlet 11 is also arranged on the side wall of the buffer tank 1. The waste gas is conveyed to the buffer tank 1 for buffering through a pipeline, and the waste gas is filtered in advance through the filter screen 10 so as to remove most of particle dust and part of harmful gas. The filter screen 10 may employ a conventional filter screen such as a glass fiber filter screen or a PTFE filter screen. The granular dust trapped by the filter screen 10 in the buffer tank 1 can be discharged through the drain outlet 11.
The gas discharged from the buffer tank 1 is conveyed to the treatment tank body 30 through the first conveying pipe 7, and the air intake fan 2 is provided on the first conveying pipe 7. The gas discharged from the exhaust gas treatment tank 3 is supplied to the filtering device 4 through the second supply pipe 8.
In a preferred embodiment, referring to fig. 1 to 3, the side of the treatment tank 30 is further provided with an air inlet pipe 302 communicating with the outlet end of the air intake fan 2 and an air distribution pipe 303 communicating with the air inlet pipe 302;
the outlet end of the air distribution pipe 303 is cone-shaped.
The number of the turntables 3212 is a first turntable 3210 and a second turntable 3211 in turn along the air flow direction, and auxiliary stirring assemblies 34 are arranged on the surfaces of two sides of the tray body 322 of the second turntable 3211;
the auxiliary stirring assembly 34 comprises a connecting rod 340 fixedly connected with the surface of the tray 322, and a plurality of stirring blades 341 fixedly connected on the connecting rod 340 along the axial direction. The surface of stirring vane 341 is provided with a plurality of liquid storage grooves 342.
The first and second turn plates 3210 and 3211 divide the process tank 30 to form first, second and third process chambers 35, 36 and 37, which are sequentially arranged in the air flow direction; the first, second and third process chambers 35, 36 and 37 are each provided with a liquid inlet 304 and a liquid outlet 305. The exhaust gas sequentially passes through the first and second rotating disks 3210 and 3211 to be contacted with an exhaust gas treatment liquid filled in the first and second rotating disks 3210 and 3211, thereby absorbing and removing harmful substances in the exhaust gas.
The main stirring device 31 is arranged in the first processing chamber 35 and comprises a stirring shaft 310 which is perpendicular to the central axis of the processing tank body 30 and is rotatably connected with the inner wall of the processing tank body 30, a stirring impeller 311 fixedly connected to the lower end of the stirring shaft 310 and a fan blade 312 fixedly connected to the upper end of the stirring shaft 310; the stirring impeller 311 is below the liquid level and the air blades 312 are above the liquid level.
The outlet end of the air distribution pipe 303 is disposed at the side of the fan blade 312, and is used for driving the fan blade 312, the stirring shaft 310 and the stirring impeller 311 to rotate by the air inlet flow.
In this embodiment, the air inlet is guided by the air distribution pipe 303, and the main stirring device 31 is driven to rotate by the air flow of the air inlet, that is, the air blades 312 are blown by the air flow of the air inlet to rotate, so as to drive the stirring shaft 310 to rotate, and thus, the stirring impeller 311 at the lower end of the stirring shaft 310 is driven to rotate, so as to stir the treatment liquid. The rotary driving element is not needed, so that one driving element can be omitted, the energy consumption is saved, and the equipment is simplified. The air distribution pipe 303 includes a plurality of layers in the vertical direction, 4 layers in this embodiment, and a plurality of layers in the horizontal direction, 5 layers in this embodiment. A part of the air distribution pipe 303 corresponds to the wind blade 312 to blow the wind blade 312 to rotate; in addition, the side of part of the air distribution pipe 303 is not provided with the air blades 312, and the air discharged by the part of the air distribution pipe 303 directly moves to the right so as to ensure the flow velocity in the horizontal direction. In this embodiment, 5 groups of air distribution pipes 303,4 of the main stirring devices 31 are sequentially arranged in the horizontal direction, and the side part of the middle air distribution pipe 303 is not provided with the main stirring devices 31 so as to ensure the flow velocity in the horizontal direction. The air distribution pipes 303 deviate from the centers of the air blades 312 of the main stirring device 31 corresponding to the air distribution pipes, and the deviation direction of each air distribution pipe 303 is the same, as in the embodiment, the air distribution pipes 303 deviate upwards, so that all the air blades 312 rotate clockwise, and the stirring effect can be ensured.
The main stirring device 31 mainly stirs the exhaust gas treatment liquid in the first treatment chamber 35 in the treatment tank 30. When the second turntable 3211 rotates, the sub-stirring assemblies 34 on the left and right sides of the second turntable 3211 simultaneously stir the second process chamber 36 and the third process chamber 37, respectively. The main stirring device 31, the auxiliary stirring assembly 34, the rotating shaft 320 and the like are made of corrosion-resistant materials.
The exhaust gas treatment liquid may generate some particulate matters or some salt matters due to the absorption of pollutants in the exhaust gas, the exhaust gas treatment liquid in the treatment tank 30 may be easily precipitated (or deposited), and the concentration of the exhaust gas treatment liquid may be easily uneven. In this embodiment, the main stirring device 31 is provided to continuously stir the waste gas treatment liquid to prevent the treatment liquid from precipitating, and the concentration of the waste gas treatment liquid in the treatment tank 30 is kept uniform by stirring, so as to ensure the waste gas treatment effect. On the other hand, a large amount of micro-droplets can be generated by stirring, and the micro-droplets are filled in the treatment tank 30 and on the turntable 321, so that the contact area and probability of the exhaust gas and the treatment liquid can be increased, and the exhaust gas treatment effect can be improved.
On the other hand, the surface of the stirring blade 341 of the auxiliary stirring assembly 34 is provided with a plurality of liquid storage grooves 342, when the liquid storage grooves 342 rotate below the liquid level, a small amount of waste gas treatment liquid can be stored in the liquid storage grooves 342, and when the liquid storage grooves 342 rotate above the liquid level, the liquid in the liquid storage grooves can flow downwards along with the rotation of the liquid storage grooves 342, so that the content of the treatment liquid in the cavity above the liquid level in the second treatment chamber 36 and the third treatment chamber 37 can be increased, and when the waste gas passes through, the probability of the contact of the waste gas and the treatment liquid can be increased, so that the treatment effect of the waste gas can be enhanced.
In a further preferred embodiment, referring to FIGS. 1 and 4-6, the turntable 321 includes a disk body 322 fixedly coupled to the rotary shaft 320 and concentrically disposed, and a plurality of driving air blades 323 disposed in an annular array on a surface of the disk body 322 facing the air flow side
The driving wind blade 323 is provided with a windward groove 324. The tray 322 is made of a breathable carbon fiber material, and both side surfaces of the tray are provided with diversion channels 325; the diversion channel 325 includes an inner annular groove 326 and an outer annular groove 327 formed on the surface of the disk 322, and a plurality of communication holes 328 communicating the inner annular groove 326 and the outer annular groove 327. The tray body 322 is made of carbon fiber, and is made of porous material, so that the waste gas can be fully absorbed and treated liquid and can pass through the tray body, and the waste gas can be fully contacted and purified with the absorbed and treated liquid. The surfaces of the inner annular groove 326 and the outer annular groove 327 are open, after the inner annular groove 326 and the outer annular groove 327 are immersed in the treatment liquid, the treatment liquid can enter the inner annular groove 326 and the outer annular groove 327, and two ends of the communication hole 328 are respectively communicated with the inner annular groove 326 and the outer annular groove 327 and are arranged inside the disc body 322. After the disc body 322 is immersed in the treatment liquid, the inner annular groove 326 and the outer annular groove 327 immersed in the liquid are fully filled with the liquid, and after the inner annular groove 326 and the outer annular groove 327 rotate away from the liquid, the liquid in the inner annular groove 326 and the liquid in the outer annular groove 327 flow mutually and fully enter gaps among carbon fibers of the disc body 322 to be fully absorbed, so that the whole disc body 322 is filled with the waste gas treatment liquid, and the purification treatment effect of the disc body 322 on waste gas can be improved.
The treatment tank 30 contains an exhaust gas treatment liquid, at least 2 circulating gas inlets 300 are formed at the upstream side of the treatment tank 30 above the liquid level, and a circulating gas outlet 301 is formed at the downstream side of the treatment tank 30 above the liquid level.
The gas circulation assembly 33 includes a circulation gas pipe 330 communicating the circulation gas outlet 301 and the circulation gas inlet 300, and a circulation fan 331 provided on the circulation gas pipe 330;
when the disk body 322 rotates and a certain driving wind blade 323 on the disk body 322 rotates to a position close to the corresponding circulating air inlet 300, a windward groove 324 on the driving wind blade 323 faces the circulating air inlet 300, so that circulating air flowing in through the circulating air inlet 300 drives the driving wind blade 323 and the disk body 322 to rotate. In the preferred embodiment, the circulating air inlet 300 is formed in a tangential direction to the outer circumference of the treatment tank 30, so that when the wind vane 323 is driven to rotate to the circulating air inlet 300, the wind facing groove 324 thereon vertically faces the circulating air inlet 300, thereby more effectively utilizing the power of the circulating air inlet flow.
The sidewall of the process tank 30 is protruded to the outer circumference to form a rotor groove 306. The outer circumferences of the first and second turntables 3210 and 3211 are disposed in the turntable groove 306, thereby enabling the three process chambers to have a better isolation effect, and simultaneously, also greatly reducing the amount of gas directly flowing out from the gap between the tray 322 and the sidewall of the process tank 30 without passing through the tray 322, so as to ensure the treatment effect of the exhaust gas.
On the one hand, the tray 322 is continuously rotated, so that new liquid is continuously absorbed from the exhaust gas treatment liquid at the lower part in the treatment tank 30, and the exhaust gas passes through the tray 322 from left to right to contact and react with the liquid in the tray 322, thereby removing harmful substances in the exhaust gas. The tray body 322 can continuously absorb new liquid, so that the liquid in the tray body 322 can be prevented from being saturated or excessively reacted to lose efficacy due to the fact that excessive harmful substances are adsorbed, and the treatment effect of waste gas can be ensured; in addition, by continuously absorbing new liquid, it is ensured that the tray 322 can always absorb a large amount of treatment liquid, maintaining a high exhaust gas treatment effect.
In the present embodiment, the rotation of the turntable 321 is realized by the inlet flow of the circulating gas obtained by the gas circulation assembly 33, so that one driving element can be omitted, energy consumption is saved, and equipment is simplified. Specific: specific: the circulating fan 331 extracts part of the gas in the downstream (third processing chamber 37) of the processing tank 30, and conveys the gas to the upstream (first processing chamber 35 and second processing chamber 36), and the gas enters from the circulating gas inlet 300 on the side of the processing tank 30, and the driving air vane 323 on the circulating gas inlet 300 is blown by the intake air flow to drive the whole turntable 321 to rotate. The turntable 321 is provided with a plurality of driving air blades 323 at intervals, so that sufficient rotation power can be ensured.
On the other hand, when the second gas monitoring device 64 detects that the content of the harmful gas in the last discharged gas is too high (for example, insufficient treatment due to too high concentration of the harmful gas in the feed exhaust gas), it indicates that the exhaust gas treatment is insufficient and thorough. In this embodiment, by providing the gas circulation assembly 33, the circulation fan 331 can pump out and circulate the part of the processed gas in the downstream (the third processing chamber 37) of the processing tank 30 to the upstream (the first processing chamber 35 and the second processing chamber 36) again, and the part of the processed gas is absorbed and purified again through the tray 322, so that the purifying effect on the waste gas can be improved, and the content of harmful gas in the finally discharged gas can be reduced, so as to ensure that the emission reaches the standard. And in a certain range, the larger the circulating gas amount is, the more thorough the waste gas purification treatment is, and the lower the content of harmful gas in the finally discharged gas is. For example, when the second gas monitoring device 64 detects that the content of the harmful gas in the last discharged gas is too high (or the first gas monitoring device 54 detects that the concentration of the harmful gas in the fed exhaust gas is significantly increased), by increasing the power of the circulating fan 331, the circulating gas is increased, more downstream gas is circulated to the upstream side, and then the gas is absorbed and purified through the tray 322, so that the harmful gas in the exhaust gas can be absorbed and removed more fully, and the content of the harmful gas in the last discharged gas is reduced.
Therefore, in this embodiment, by providing the gas circulation assembly 33, on the one hand, the treatment effect of the exhaust gas treatment tank 3 on the exhaust gas can be adjusted, and the treatment effect of the exhaust gas can be improved by partial gas circulation and purification, so that the content of harmful gas in the gas can be reduced; on the other hand, the intake air flow introduced through the air circulation assembly 33 can also provide a driving force for the rotation of the turntable 321, so that one driving element can be omitted, the energy consumption can be saved, the equipment can be simplified, and multiple purposes can be achieved.
In one embodiment, referring to fig. 7, the filtering device 4 includes a housing 40, and a first orifice plate 41, a non-woven fabric layer 42, a PTFE fiber layer 43, an activated carbon layer 44, a bamboo carbon fiber layer 45, a nano carbon fiber cloth layer 46, and a second orifice plate 47 sequentially stacked in the housing 40 from bottom to top. The first orifice plate 41 and the second orifice plate 47 are densely provided with micropores, and gas passes through the micropores. The PTFE fiber layer 43 has good mechanical strength and filtering performance, the activated carbon layer 44 can absorb a large amount of pollutants, the bamboo carbon fiber layer 45 has good filtering performance, the nano carbon fiber layer 46 has high porosity, large pollutant holding capacity and high mechanical strength, and deep filtration can be performed. The gas sequentially passes through the first pore plate 41, the non-woven fabric layer 42, the PTFE fiber layer 43, the activated carbon layer 44, the bamboo carbon fiber layer 45, the nano carbon fiber cloth layer 46 and the second pore plate 47 from left to right, and is discharged, and the gas is further subjected to deep filtration through the multi-layer filtration structure, so that the content of harmful pollutants in the finally discharged gas can be further reduced.
Although embodiments of the present invention have been disclosed above, it is not limited to the use of the description and embodiments, it is well suited to various fields of use for the invention, and further modifications may be readily apparent to those skilled in the art, and accordingly, the invention is not limited to the particular details without departing from the general concepts defined in the claims and the equivalents thereof.
Claims (3)
1. The industrial waste gas treatment device with the monitoring function is characterized by comprising a buffer tank, an air inlet fan, a waste gas treatment tank, a filtering device, a first gas monitoring device and a second gas monitoring device, wherein the buffer tank, the air inlet fan, the waste gas treatment tank and the filtering device are sequentially arranged along the air flow direction;
the waste gas treatment tank comprises a cylindrical treatment tank body, a main stirring device arranged in the treatment tank body along the vertical direction, a gas treatment disc assembly which can be rotatably arranged in the treatment tank body around the central axis of the treatment tank body, and a gas circulation assembly which is used for pumping out part of gas at the downstream of the treatment tank body and then conveying the part of gas to the upstream of the treatment tank body;
the gas treatment disc assembly comprises a rotating shaft which is coaxial with the treatment tank body and can be rotatably arranged in the treatment tank body, and at least two turntables which are arranged on the rotating shaft at intervals along the direction of the gas flow; the side wall of the treatment tank body protrudes towards the periphery, and a rotating disc groove for accommodating the outer end of the rotating disc is formed on the inner wall of the treatment tank body;
the rotary table comprises a disc body fixedly connected with the rotary shaft and concentrically arranged, and a plurality of driving wind blades which are arranged on the surface of the disc body facing the airflow side in an annular array;
the driving wind blade plate is provided with a windward groove;
the tray body is made of a breathable carbon fiber material, and flow guide channels are formed in the surfaces of two sides of the tray body;
the diversion channel comprises an inner annular groove, an outer annular groove and a plurality of communication holes, wherein the inner annular groove and the outer annular groove are formed in the surface of the disc body, and the communication holes are communicated with the inner annular groove and the outer annular groove;
the two turntables are divided into a first turntable and a second turntable in turn along the air flow direction, and auxiliary stirring assemblies are arranged on the surfaces of two sides of the second turntable;
the auxiliary stirring assembly comprises a connecting rod fixedly connected with the surface of the disc body and a plurality of stirring blades fixedly connected on the connecting rod along the axial direction;
the surface of the stirring blade is provided with a plurality of liquid storage grooves;
the treatment tank body is internally filled with waste gas treatment liquid, at least 2 circulating gas inlets are formed at the upstream of the treatment tank body and above the liquid level, and circulating gas outlets are formed at the downstream of the treatment tank body and above the liquid level;
the gas circulation assembly comprises a circulating gas pipeline which is communicated with the circulating gas outlet and the circulating gas inlet, and a circulating fan which is arranged on the circulating gas pipeline;
when a certain driving fan blade plate on the disc body rotates to be close to a corresponding circulating gas inlet, a windward groove on the driving fan blade plate faces the circulating gas inlet so as to drive the driving fan blade plate and the disc body to rotate through circulating air flow entering through the circulating gas inlet;
the side part of the treatment tank body is also provided with an air inlet pipe communicated with the outlet end of the air inlet fan and an air distribution pipe communicated with the air inlet pipe;
the outlet end of the air distribution pipe is cone-shaped;
the main stirring device comprises a stirring shaft which is perpendicular to the central axis of the treatment tank body and is rotatably connected with the inner wall of the treatment tank body, a stirring impeller fixedly connected to the lower end of the stirring shaft, and a wind blade fixedly connected to the upper end of the stirring shaft;
the outlet end of the air distribution pipe is arranged at the side part of the air blade and is used for driving the air blade, the stirring shaft and the stirring impeller to rotate through air inlet airflow.
2. The industrial waste gas treatment device with a monitoring function according to claim 1, wherein the first rotary disk and the second rotary disk divide the treatment tank body into a first treatment chamber, a second treatment chamber and a third treatment chamber which are sequentially arranged along the air flow direction;
and the first treatment chamber, the second treatment chamber and the third treatment chamber are respectively provided with a liquid inlet and a liquid outlet.
3. The industrial waste gas treatment device with the monitoring function according to claim 1, wherein a filter screen is arranged in the buffer tank, and a drain outlet is further arranged on the side wall of the buffer tank.
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| CN111077808B (en) * | 2019-12-26 | 2021-07-06 | 深圳市前海汰洋环保科技有限公司 | Real-time data feedback artificial intelligence control system and control method thereof |
| CN110981029B (en) * | 2019-12-26 | 2023-07-07 | 苏州仕净科技股份有限公司 | Industrial high-purity water preparing system |
| CN111097261A (en) * | 2020-01-13 | 2020-05-05 | 上海家倍得装饰工程有限公司 | Formaldehyde-removing air purification device for home decoration |
| CN112275048A (en) * | 2020-10-15 | 2021-01-29 | 吉林建筑大学 | Purification and treatment device for atmospheric pollution |
| CN112426852A (en) * | 2020-12-18 | 2021-03-02 | 华能秦煤瑞金发电有限责任公司 | Flue gas desulfurization device for coal-fired power plant |
| CN114832599A (en) * | 2022-04-02 | 2022-08-02 | 江苏爱尚环境科技有限公司 | Production technology tail gas cleaning device |
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