CN212492320U - Organic waste gas's processing apparatus - Google Patents
Organic waste gas's processing apparatus Download PDFInfo
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- CN212492320U CN212492320U CN202020548280.0U CN202020548280U CN212492320U CN 212492320 U CN212492320 U CN 212492320U CN 202020548280 U CN202020548280 U CN 202020548280U CN 212492320 U CN212492320 U CN 212492320U
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Abstract
The utility model discloses an organic waste gas's processing apparatus, including first spraying system, second spraying system, light oxygen catalytic system, third spraying system and the RCO catalytic combustion system that connects gradually. The first spraying system comprises a first spraying tower, wherein a honeycomb packing layer and a demisting layer are arranged in the first spraying tower; the second spraying system comprises a second spraying tower; the photo-oxidation catalysis system comprises a photo-oxidation catalysis box; a third spray system comprising a third spray tower; RCO catalytic combustion system is including adsorption apparatus structure, deviating from mechanism and catalytic combustion mechanism. The utility model discloses an organic waste gas's processing apparatus, through mutually supporting between first spraying system, second spraying system, light oxygen catalytic system, third spraying system and the RCO catalytic combustion system, can effectively reduce the benzene series thing in the organic waste gas and the content of the total hydrocarbon of non-methane, the treatment effect is good, makes organic waste gas reach emission standard and has solved single mode in the past and to the not thorough problem of organic waste gas treatment.
Description
Technical Field
The utility model relates to a waste gas treatment technical field, concretely relates to be a processing apparatus of organic waste gas.
Background
The chemical industry is an important prop industry of national economy in China, however, waste gas generated in chemical production often contains a plurality of pollutants, and the pollutants are usually complex in physical and chemical properties, easily cause great pollution to the environment and simultaneously influence the health of human bodies. Therefore, China has come out strict regulations and specifications to control the discharge of chemical waste gas. For example, GB16297-1996 Integrated atmospheric pollutants discharge Standard, which defines the emission values for 33 emissions.
For example, in the production process of a fine chemical workshop, a stripping process is involved, and in the stripping process, a part of uncondensed gas volatilizes, and because benzene series and non-methane total hydrocarbon are contained, the single-mode treatment difficulty is high, the single-mode treatment is not thorough, and the benzene series and the non-methane total hydrocarbon exceed the standard, so that the environment-friendly emission requirement cannot be met.
In the prior art, there are various methods for treating the chemical organic waste gas, and a relatively common method includes an adsorption method, an absorption method, a plasma method, an incineration method, a catalytic oxidation method, and the like. But the adsorption method has the defects of high cost, saturated adsorption of the adsorbent and the like; the absorption method needs to select a proper chemical agent, requires mild reaction conditions of the chemical agent, and simultaneously considers the problems of secondary pollution, price and the like; the plasma method has the defects of high energy consumption, general purification rate and the like; the incineration method has good purification effect, but has high investment and operation cost. The catalytic oxidation method has the disadvantages of low ignition temperature and good safety, but has the defect of catalyst deactivation. Therefore, there is a great need for developing a new organic waste gas treatment technology that is efficient, simple and inexpensive.
In view of this, the utility model provides an organic waste gas's processing apparatus, through adopting many system coordination's mode, can effectively reduce the content of benzene series thing and the total hydrocarbon of non-methane in the organic waste gas, the treatment effect is good, makes organic waste gas reach emission standard.
SUMMERY OF THE UTILITY MODEL
The utility model provides a not enough to prior art, the utility model provides an organic waste gas's processing apparatus through adopting many system complex modes, can effectively reduce the content of benzene series thing and the total hydrocarbon of non-methane in the organic waste gas, and the treatment effect is good, makes organic waste gas reach emission standard.
In order to achieve the purpose, the utility model discloses a following technical scheme realizes:
the organic waste gas treatment device comprises a first spraying system, a second spraying system, a photo-oxidation catalytic system, a third spraying system and an RCO catalytic combustion system which are sequentially connected;
the first spraying system comprises a first spraying tower, a honeycomb packing layer and a demisting layer are arranged in the first spraying tower, a plurality of spray heads are arranged between the honeycomb packing layer and the demisting layer, water inlet ends of the spray heads are connected with the same water pipeline, the water inlet end of the water pipeline penetrates through the side wall of the first spraying tower to be communicated with the liquid outlet pipe, a first circulating pump is arranged on the water pipeline, and the air inlet pipe is arranged between the waste gas treatment liquid and the honeycomb packing layer;
the second spraying system comprises a second spraying tower, the air inlet end of the second spraying tower is communicated with a first air outlet pipe arranged at the top of the first spraying tower, the bottom of the side wall of the second spraying tower is provided with a liquid outlet pipeline, the liquid outlet pipeline is divided into a first branch pipe and a second branch pipe after passing through a first high-pressure water pump, the first branch pipe and the second branch pipe respectively enter the upper end and the middle end of the inside of the second spraying tower, the first branch pipe and the second branch pipe entering the second spraying tower are respectively and uniformly provided with a first atomizing nozzle and a second atomizing nozzle, the first atomizing nozzle sprays downwards, and the second atomizing nozzle sprays upwards;
the photo-oxygen catalysis system comprises a photo-oxygen catalysis box, and the air inlet end of the photo-oxygen catalysis box is communicated with the air outlet end of the second spraying system through a first pipeline;
the third spraying system comprises a third spraying tower, the air inlet end of the third spraying tower is communicated with the photo-oxidation catalysis box through a second pipeline, the bottom of the side wall of the third spraying tower is provided with a water pipe, the water pipe enters the third spray tower through the second high-pressure water pump and the ejector, and the tail end of the water pipe is communicated with a plurality of spray pipes, the plurality of spray pipes are in L-shaped structures, are vertically fixed on the inner wall of the third spray tower at intervals, and simultaneously, the plurality of spray pipes are uniformly provided with spray heads and spray to the center of the third spray tower, and the ozone generator also comprises an ozone outlet which is connected into the third spray tower through an ozone outlet pipe, the tail end of the ozone outlet pipe is communicated with a plurality of ozone spray pipes, a plurality of ozone spray heads are uniformly arranged on each ozone spray pipe and spray downwards, and the ozone spray heads are positioned above the water pipe;
RCO catalytic combustion system, include adsorption apparatus structure, deviate from mechanism and catalytic combustion mechanism, adsorption apparatus constructs by first admission line, second admission line, third admission line, air-blower and active carbon adsorbed layer and constitutes, deviate from the mechanism and comprise deviating from fan and heater to should deviate from the mechanism and establish ties on first admission line, second admission line and third admission line through the connecting pipe, catalytic combustion mechanism includes the catalytic combustion chamber, the end of first admission line, second admission line and third admission line runs through this catalytic combustion chamber and stretches into in the catalytic combustion chamber, and is provided with the catalysis layer in this catalytic combustion chamber.
As the utility model discloses structural optimization, the inlet end of first spray tower is connected with the intake pipe, ann has the collection fan in the intake pipe.
As the structure of the utility model is optimized, alkali liquor is filled in the first spray tower and the second spray tower.
As the structure of the utility model is optimized, the alkali liquor is any one of sodium hydroxide or sodium carbonate solution.
As the utility model discloses structural optimization, first flow valve and second flow valve are installed respectively to first branch pipe and second branch pipe.
As the utility model discloses structural optimization, contain the liquid oxidant in the third spray column, the liquid oxidant is arbitrary one kind in sodium hypochlorite or the hydrogen peroxide solution.
As the utility model discloses structural optimization, adsorption device comprises first admission line, second admission line, third admission line, air-blower and active carbon adsorption layer, and just first admission line, second admission line and third admission line set up side by side at adsorption device's front end, first admission line, second admission line and third admission line communicate with the end of giving vent to anger of third spray column.
As the utility model discloses structural optimization, set up on the connecting pipe and should deviate from the fan, should deviate from the fan and be located the front position of first admission line, second admission line and third admission line, and the heater then sets up the front end at deviating from the fan.
As the utility model discloses structural optimization, the catalysis layer is cellular structure, the pipeline of giving vent to anger is connected to the end of giving vent to anger of catalytic combustion chamber, the end and the aiutage of giving vent to anger of pipeline are connected to set up the second fan on the pipeline of giving vent to anger.
Additionally, the utility model also provides a processing method of above-mentioned organic waste gas utilizes above-mentioned organic waste gas's processing apparatus, specifically includes following step:
(1) the organic waste gas to be treated is sent into a first spraying system for treatment through a collecting fan, waste gas treatment liquid in a first spraying tower is sprayed out from a spray head through a water conveying pipeline by a first circulating pump, the organic waste gas to be treated is fully contacted with the waste gas treatment liquid flowing on the surface of a filler of a honeycomb filler layer in the first spraying tower, the waste gas passing through the honeycomb filler layer is fully mixed with water mist sprayed out by the spray head, and finally liquid drops in the waste gas are removed through a demisting layer;
(2) filtering the organic waste gas pretreated in the step (1) through a filter box, then carrying out gas-liquid separation through a gas-liquid separator, and enabling the waste gas with the moisture removed to enter a second spraying system for further purification treatment;
(3) the waste gas entering the second spraying system collides with the atomized water mist sprayed by the first atomizing nozzle and the second atomizing nozzle, so that the waste gas entering the second spraying tower can be more fully contacted with the atomized water mist;
(4) the waste gas treated in the step (3) enters a photo-oxidation catalytic system for photo-oxidation catalytic treatment to remove organic pollutants;
(5) the waste gas after photo-oxidation catalytic treatment enters a third spraying system, under the action of an ejector, a liquid oxidant in a third spraying tower can be converted into micro-nano bubbles, then the micro-nano bubbles are sprayed into the third spraying tower through a spraying head on a spraying pipe to react with the waste gas, and ozone generated by an ozone generator is sprayed towards the direction of a water pipe through an ozone spraying head and is mixed with the vaporific micro-nano bubbles sprayed by the spraying head to jointly use organic pollutants in the waste gas;
(6) and (3) enabling the waste gas treated in the step (5) to enter an RCO catalytic combustion system, realizing adsorption and desorption of the waste gas through an adsorption mechanism and a separation mechanism, and enabling the organic waste gas to be subjected to combustion treatment at high temperature through a catalytic combustion chamber, so that the organic waste gas can be discharged up to the standard.
Compared with the prior art, the utility model discloses following advantage has mutually:
the utility model discloses an organic waste gas's processing apparatus, through the mutual cooperation between first spraying system, second spraying system, light oxygen catalytic system, third spraying system and the RCO catalytic combustion system, can effectively reduce the benzene series thing in the organic waste gas and the content of non-methane total hydrocarbon, the treatment effect is good, makes organic waste gas reach emission standard and has solved the problem that single mode was not thorough to organic waste gas treatment in the past;
the first spraying system of the utility model fully contacts the organic waste gas with the waste gas treatment liquid flowing on the surface of the filler of the honeycomb packing layer to remove the non-methane total hydrocarbon and benzene series contained in the waste gas, and the waste gas passing through the honeycomb packing layer is fully mixed with the water mist sprayed by the spray head to further purify the waste gas, and finally the waste gas is demisted by the demisting layer to remove the liquid drops in the waste gas, so as to realize the preliminary purification of the organic waste gas;
the second spraying system of the utility model collides the atomized water mist sprayed by the first atomizing nozzle and the second atomizing nozzle, so that the waste gas entering the second spraying tower can be fully contacted with the atomized water mist, and the waste gas treatment effect of the utility model is improved;
the third spraying system of the utility model can convert the liquid oxidant in the third spraying tower into micro-nano bubbles, then the micro-nano bubbles are sprayed into the third spraying tower by the spraying heads on the spraying pipes and react with the waste gas entering from the second pipeline, so that the harmful gas components such as non-methane total hydrocarbon and benzene series in the waste gas can be effectively removed, and the spraying heads on a plurality of spraying pipes simultaneously spray vaporous micro-nano bubbles to the center of the third spraying tower, so that the micro-nano bubbles and the waste gas can be more fully contacted, thereby further improving the treatment effect of the waste gas, and the ozone generated by the ozone generator is sprayed to the direction of the water pipe through the ozone nozzle and is mixed with the vaporous micro-nano bubbles sprayed by the spraying heads, thereby achieving the synergistic purpose, further improving the waste gas treatment effect, and the ozone nozzle on the ozone spraying pipe sprays downwards, so that the retention time of the waste gas at the spraying heads can be prolonged, thereby realizing more fully removing harmful components such as non-methane total hydrocarbon, benzene series and the like in the waste gas;
the utility model discloses a RCO catalytic combustion system can realize the activation to the active carbon adsorption layer, makes it utilize many times to can carry the inside of catalytic combustion room with the organic waste gas after desorption through the catalytic combustion mechanism who sets up, through the catalysis of catalytic combustion room heating and catalysis layer, make organic waste gas burn under high temperature, produce harmless compositions such as carbon dioxide and water, later clean air is discharged by the aiutage again.
Drawings
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 is a schematic structural diagram of the present invention;
FIG. 2 is a flow chart of the present invention;
FIG. 3 is a detailed structural diagram of the present invention;
reference numerals: 1. the device comprises a first spray system, a second spray system, a photo-oxidation catalytic system, a third spray system, a RCO catalytic combustion system, a first spray tower, a second spray system, a photo-oxidation catalytic system, a third spray system, a fourth spray tower, a fifth spray tower, a sixth spray tower, a fifth spray tower, a sixth spray tower, a fourth spray tower, a fifth spray tower, a, Ozone exit tube, 36, ozone spray tube, 37, ozone shower nozzle, 38, adsorption mechanism, 39, take-off mechanism, 40, catalytic combustion mechanism, 41, first inlet line, 42, second inlet line, 43, third inlet line, 44, blower, 45, activated carbon adsorption layer, 46, take-off fan, 47, heater, 48, catalytic combustion chamber, 49, catalytic layer, 50, outlet line, 51, exhaust funnel, 52, second fan.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings in the embodiments of the present invention are combined below to clearly and completely describe the technical solutions in the embodiments of the present invention.
In the description of the present invention, it is to be noted that, unless otherwise specified, "a plurality" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "top", "bottom", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; the connection can be mechanical connection or circuit connection; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood as the case may be, by those of ordinary skill in the art.
Referring to fig. 1 to 3, the organic waste gas treatment device of the present invention has the following general structure:
the device comprises a first spraying system 1, a second spraying system 2, a photo-oxidation catalytic system 3, a third spraying system 4 and an RCO catalytic combustion system 5 which are connected in sequence.
The first spraying system 1 comprises a first spraying tower 6, an air inlet pipe 7 is connected to the air inlet end of the first spraying tower 6, and a collecting fan 8 is mounted on the air inlet pipe 7, so that organic waste gas to be treated can be sent into the first spraying tower 6 through the collecting fan 8 to be treated.
Further, the first spray tower 6 is filled with alkali liquor, the first spray tower 6 is provided with a liquor outlet communicated with the alkali liquor, the liquor outlet is connected with a liquor outlet pipe 9, meanwhile, a honeycomb packing layer 10 and a demisting layer 11 are arranged inside the first spray tower 6, the demisting layer 11 is positioned above the honeycomb packing layer 10, a plurality of spray heads 12 are arranged between the honeycomb packing layer 10 and the demisting layer 11, the water inlet ends of the spray heads 12 are connected with a same water pipeline 13, the water inlet end of the water pipeline 13 penetrates through the side wall of the first spray tower 6 to be communicated with the liquor outlet pipe 9, a first circulating pump 14 is arranged on the water pipeline 13, the air inlet pipe 7 is positioned between the waste gas treatment liquid and the honeycomb packing layer 10, so that the organic waste gas to be treated can be sent into the first spray tower 6 through the collecting fan 8, the waste gas treatment liquid in the first spray tower 6 is sprayed out by the spray heads 12 through the first circulating pump 14, in the first spray tower 6, the organic waste gas to be treated is fully contacted with the waste gas treatment liquid flowing on the surface of the filler of the honeycomb filler layer 10 to remove non-methane total hydrocarbons and benzene series contained in the waste gas, the waste gas passing through the honeycomb filler layer 10 is fully mixed with water mist sprayed by a spray head 12 to further purify the waste gas, and finally the waste gas passes through a defogging layer 11 to remove liquid drops in the waste gas.
Further, the alkali liquor is any one of sodium hydroxide solution or sodium carbonate solution, and the alkali liquor can absorb toxic gas which is easily dissolved in water and can neutralize acid gas in the gas by spraying the alkali liquor, so that the load of subsequent gas treatment is reduced.
In addition, in order to perform the next treatment on the waste gas treated by the first spraying tower 6, a first air outlet pipe 15 is arranged at the top of the first spraying tower 6, the first air outlet pipe 15 is communicated with the second spraying system 2, and meanwhile, a filter box 16, a first fan 17 and a gas-liquid separator 18 are sequentially arranged on the first air outlet pipe 15, so that under the action of the first fan 17, the waste gas treated by the first spraying system 1 is firstly filtered by the filter box 16, then the gas-liquid separator 18 performs gas-liquid separation, and the waste gas with moisture removed enters the second spraying system 2 for further purification treatment.
Similarly, the second spraying system 2 includes a second spraying tower 19, the air inlet end of the second spraying tower 19 is communicated with the first air outlet pipe 15, the second spraying tower 19 contains alkali liquor, specifically, the alkali liquor can be one of sodium hydroxide or sodium carbonate solution, meanwhile, the bottom of the side wall of the second spraying tower 19 is provided with a liquid outlet pipe 20, the liquid outlet pipe 20 is divided into a first branch pipe 22 and a second branch pipe 23 by a first high pressure water pump 21, the first branch pipe 22 and the second branch pipe 23 respectively enter the upper end and the middle end inside the second spraying tower 19, and the first branch pipe 22 and the second branch pipe 23 entering the second spraying tower 19 are respectively and uniformly provided with a first atomizing nozzle 24 and a second atomizing nozzle 25, the first atomizing nozzle 24 sprays downwards, the second atomizing nozzle 25 sprays upwards, thus, atomized water sprayed from the first atomizing nozzle 24 and the second atomizing nozzle 25 collide with each other, make the waste gas that gets into in the second spray column 25 can obtain more abundant contact with atomizing water smoke, improve the utility model discloses a waste gas treatment effect.
Preferably, a first flow valve 26 and a second flow valve 27 are respectively installed on the first branch pipe 22 and the second branch pipe 23 to control the flow rate of the exhaust treatment liquid entering the first branch pipe 22 and the second branch pipe 23, and further, the flow rate of the exhaust treatment liquid entering the first atomizer 24 can be made smaller than the flow rate of the exhaust treatment liquid entering the second atomizer 25, so that the spraying speed of the second atomizer 25 is greater than that of the first atomizer 24, thereby further improving the exhaust treatment effect of the present invention.
The photo-oxidation catalysis system 3 comprises a photo-oxidation catalysis box 26, a first pipeline is connected between the air inlet end of the photo-oxidation catalysis box 26 and the air outlet end of the second spraying system 2, and the photo-oxidation catalysis box 26 is communicated with the third spraying system 4 through a second pipeline 27.
Specifically, the third spraying system 4 includes a third spraying tower 28, an air inlet end of the third spraying tower 28 is communicated with the second pipeline 27, a liquid oxidant is contained in the third spraying tower 28, in addition, a water pipe 29 is installed at the bottom of the side wall of the third spraying tower 28, the water pipe 29 enters the third spraying tower 28 through a second high-pressure water pump 30 and an ejector 31, the end of the water pipe 29 is communicated with a plurality of spraying pipes 32, the plurality of spraying pipes 32 are in an L-shaped structure, the plurality of spraying pipes 32 are vertically fixed on the inner wall of the third spraying tower 28 at intervals, meanwhile, spraying heads 33 are uniformly distributed on the plurality of spraying pipes 32 and spray towards the center of the third spraying tower 28, so that the liquid oxidant in the third spraying tower 28 can be converted into micro-nano bubbles under the action of the ejector 31, and then is sprayed into the third spraying tower 28 by the spraying heads on the spraying pipes 32, and react with the waste gas that gets into from second pipeline 27, can effectively get rid of harmful gas composition such as non-methane total hydrocarbon and benzene series thing in the waste gas to shower head 33 on a plurality of shower 32 sprays vaporific micro-nano bubble to the central authorities of third spray column 28 simultaneously, can make micro-nano bubble and waste gas obtain more abundant contact, thereby further improve the treatment effect of waste gas.
In order to further improve the treatment effect on the exhaust gas, the third spraying system 4 further comprises an ozone generator 34, the ozone outlet of the ozone generator 34 is connected to the third spray tower 28 through an ozone outlet pipe 35, the tail end of the ozone outlet pipe 35 is communicated with a plurality of ozone spray pipes 36, a plurality of ozone spray heads 37 are uniformly arranged on each ozone spray pipe 36 and spray downwards, and the ozone nozzle 37 is positioned above the water pipe 29, so that the ozone generated by the ozone generator 34 is injected toward the water pipe through the ozone nozzle 37, and is mixed with the mist micro-nano bubbles sprayed by the spray header 33, thereby achieving the purpose of synergy and further improving the waste gas treatment effect, in addition, the ozone nozzle 37 on the ozone nozzle 36 is downward-spraying, so that the retention time of the waste gas at the spray head 33 can be prolonged, and harmful components such as non-methane total hydrocarbon and benzene series in the waste gas can be removed more fully.
The liquid oxidant is any one of sodium hypochlorite or hydrogen peroxide, and is sprayed by oxidation, so that the oxidant in the form of micro-nano bubbles is oxidized and absorbed by ozone, substances which are not easy to oxidize are oxidized, and the purification strength is further improved.
In addition, the RCO catalytic combustion system 5 includes an adsorption mechanism 38, a detachment mechanism 39 and a catalytic combustion mechanism 40, wherein the adsorption mechanism 38 is composed of a first air inlet pipe 41, a second air inlet pipe 42, a third air inlet pipe 43, a blower 44 and an activated carbon adsorption layer 45, the front end of the adsorption mechanism 38 is provided with the first air inlet pipe 41, the second air inlet pipe 42 and the third air inlet pipe 43 in parallel, the first air inlet pipe 41, the second air inlet pipe 42 and the third air inlet pipe 43 are communicated with the air outlet end of the third spray tower 28, and the three pipes can be used alternately (each pipe can be provided with a switch valve, the switch valve controls the on-off of each pipe), so that the activated carbon adsorption layer 45 adsorbs organic waste gas and detaches at each time, and continuous operation is realized, and the detachment mechanism 39 is composed of a detachment fan 46 and a heater 47, the stripping mechanism 39 is connected in series to the first air inlet pipe 41, the second air inlet pipe 42 and the third air inlet pipe 43 through a connecting pipe 46, the stripping fan 46 is arranged on the connecting pipe 46, the stripping fan 46 is positioned at the front end of the first air inlet pipe 41, the second air inlet pipe 42 and the third air inlet pipe 43, and the heater 47 is arranged at the front end of the stripping fan 46, so that when the activated carbon adsorption layer 45 is saturated, the stripping of the activated carbon adsorption layer 45 can be realized through the combined action of the stripping fan 46 and the heater 47.
The catalytic combustion mechanism 5 includes a catalytic combustion chamber 48, the ends of the first air intake duct 41, the second air intake duct 42, and the third air intake duct 43 penetrate the catalytic combustion chamber 48 and extend into the catalytic combustion chamber 48, and a catalytic layer 49 is provided in the catalytic combustion chamber 48, the catalyst layer is of a honeycomb structure, the gas outlet end of the catalytic combustion chamber 48 is connected with a gas outlet pipeline 50, the tail end of the gas outlet pipeline 50 is connected with an exhaust funnel 51, and a second fan 52 is provided on the outlet duct 50 to discharge the exhaust gas treated by the catalytic combustor 48 in time, so that, the desorbed organic exhaust gas can be delivered to the interior of the catalytic combustor 48 by the catalytic combustion mechanism 40, the organic waste gas is combusted at a high temperature by heating in the catalytic combustor 48 and catalysis in the catalytic layer 49 to produce harmless components such as carbon dioxide and water, and then the clean air is exhausted from the exhaust funnel.
The process flow for treating the waste gas by the device is as follows:
(1) organic waste gas to be treated is sent into the first spraying system 1 through the collecting fan 8 to be treated, waste gas treatment liquid in the first spraying tower 6 is sprayed out from the spray head 12 through the water conveying pipeline 13 by the first circulating pump 14, the organic waste gas to be treated is fully contacted with the waste gas treatment liquid flowing on the surface of the filler of the honeycomb filler layer 10 in the first spraying tower 6, the waste gas passing through the honeycomb filler layer 10 is fully mixed with water mist sprayed out from the spray head 12, and finally the waste gas passes through the mist removing layer 11 to remove liquid drops in the waste gas;
(2) filtering the organic waste gas pretreated in the step (1) through a filter box 16, then performing gas-liquid separation through a gas-liquid separator 18, and enabling the waste gas with the moisture removed to enter a second spraying system 2 for further purification treatment;
(3) the waste gas entering the second spraying system 2 collides with the atomized water mist sprayed by the first atomizing nozzle 24 and the second atomizing nozzle 25, so that the waste gas entering the second spraying tower 19 can be more fully contacted with the atomized water mist;
(4) the waste gas treated in the step (3) enters a photo-oxidation catalytic system 3 for photo-oxidation catalytic treatment to remove organic pollutants;
(5) the waste gas after photo-oxidation catalytic treatment enters a third spraying system 4, under the action of an ejector 31, a liquid oxidant in a third spraying tower 28 can be converted into micro-nano bubbles, then the micro-nano bubbles are sprayed into the third spraying tower 28 through a spraying head 33 on a spraying pipe 32 to react with the waste gas, ozone generated by an ozone generator 34 is sprayed to the direction of a water pipe 29 through an ozone spraying head 37 and is mixed with the vaporific micro-nano bubbles sprayed by the spraying head 33, and organic pollutants in the waste gas are shared;
(6) and (3) enabling the waste gas treated in the step (5) to enter the RCO catalytic combustion system 5, realizing adsorption and desorption of the waste gas through the adsorption mechanism 38 and the separation mechanism 39, and enabling the organic waste gas to be subjected to combustion treatment at high temperature through the catalytic combustion chamber 40, so that the organic waste gas can be discharged up to the standard.
Experimental example:
the treatment effect of the waste gas (non-methane total hydrocarbon and benzene series) of a certain chemical industry is shown in table 1.
TABLE 1 exhaust-gas treatment Effect table
| Name of contaminant | Benzene series compound | Non-methane total hydrocarbons |
| Concentration mg/m before treatment3 | 545.6 | 35.4 |
| Concentration after treatment mg/m3 | 35.3 | 1.5 |
| The treatment efficiency% | 93.5 | 95.8 |
To sum up, adopt the utility model discloses a handle the back, exhaust-gas treatment is respond well, can realize not having secondary pollution's organic waste gas's processing apparatus after, organic waste gas treatment is respond well, can reach the mark and discharge.
To sum up, the utility model discloses an organic waste gas's processing apparatus through mutually supporting between first spraying system, second spraying system, light oxygen catalytic system, third spraying system and the RCO catalytic combustion system, can effectively reduce the content of benzene series thing and the total hydrocarbon of non-methane in the organic waste gas, and the treatment effect is good, makes organic waste gas reach emission standard and has solved the not thorough problem of single mode to organic waste gas treatment in the past.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (9)
1. The device for treating the organic waste gas is characterized by comprising a first spraying system, a second spraying system, a photo-oxygen catalysis system, a third spraying system and an RCO catalytic combustion system which are sequentially connected;
the first spraying system comprises a first spraying tower, a honeycomb packing layer and a demisting layer are arranged in the first spraying tower, a plurality of spray heads are arranged between the honeycomb packing layer and the demisting layer, water inlet ends of the spray heads are connected with the same water conveying pipeline, the water inlet end of the water conveying pipeline penetrates through the side wall of the first spraying tower to be communicated with a liquid outlet pipe, a first circulating pump is arranged on the water conveying pipeline, and an air inlet pipe is arranged between the waste gas treatment liquid and the honeycomb packing layer;
the second spraying system comprises a second spraying tower, the air inlet end of the second spraying tower is communicated with a first air outlet pipe arranged at the top of the first spraying tower, the bottom of the side wall of the second spraying tower is provided with a liquid outlet pipeline, the liquid outlet pipeline is divided into a first branch pipe and a second branch pipe after passing through a first high-pressure water pump, the first branch pipe and the second branch pipe respectively enter the upper end and the middle end of the inside of the second spraying tower, the first branch pipe and the second branch pipe entering the second spraying tower are respectively and uniformly provided with a first atomizing nozzle and a second atomizing nozzle, the first atomizing nozzle sprays downwards, and the second atomizing nozzle sprays upwards;
the photo-oxygen catalysis system comprises a photo-oxygen catalysis box, and the air inlet end of the photo-oxygen catalysis box is communicated with the air outlet end of the second spraying system through a first pipeline;
the third spraying system comprises a third spraying tower, the air inlet end of the third spraying tower is communicated with the photo-oxidation catalysis box through a second pipeline, the bottom of the side wall of the third spraying tower is provided with a water pipe, the water pipe enters the third spray tower through the second high-pressure water pump and the ejector, and the tail end of the water pipe is communicated with a plurality of spray pipes, the plurality of spray pipes are in L-shaped structures, are vertically fixed on the inner wall of the third spray tower at intervals, and simultaneously, the plurality of spray pipes are uniformly provided with spray heads and spray to the center of the third spray tower, and the ozone generator also comprises an ozone outlet which is connected into the third spray tower through an ozone outlet pipe, the tail end of the ozone outlet pipe is communicated with a plurality of ozone spray pipes, a plurality of ozone spray heads are uniformly arranged on each ozone spray pipe and spray downwards, and the ozone spray heads are positioned above the water pipe;
RCO catalytic combustion system, include adsorption apparatus structure, deviate from mechanism and catalytic combustion mechanism, adsorption apparatus constructs by first admission line, second admission line, third admission line, air-blower and active carbon adsorbed layer and constitutes, deviate from the mechanism and comprise deviating from fan and heater to should deviate from the mechanism and establish ties on first admission line, second admission line and third admission line through the connecting pipe, catalytic combustion mechanism includes the catalytic combustion chamber, the end of first admission line, second admission line and third admission line runs through this catalytic combustion chamber and stretches into in the catalytic combustion chamber, and is provided with the catalysis layer in this catalytic combustion chamber.
2. The organic waste gas treatment device according to claim 1, wherein an air inlet pipe is connected to the air inlet end of the first spray tower, and a collection fan is mounted on the air inlet pipe.
3. The apparatus for treating organic waste gas according to claim 1, wherein the first spray tower and the second spray tower contain alkali solution.
4. The apparatus for treating organic waste gas according to claim 3, wherein the alkali solution is any one of sodium hydroxide or sodium carbonate solution.
5. The apparatus for treating organic waste gas according to claim 1, wherein the first branch pipe and the second branch pipe are respectively provided with a first flow valve and a second flow valve.
6. The organic waste gas treatment device according to claim 1, wherein a liquid oxidant is contained in the third spray tower, and the liquid oxidant is any one of sodium hypochlorite and hydrogen peroxide.
7. The organic waste gas treatment device according to claim 1, wherein the adsorption mechanism comprises a first air inlet pipe, a second air inlet pipe, a third air inlet pipe, a blower and an activated carbon adsorption layer, the first air inlet pipe, the second air inlet pipe and the third air inlet pipe are arranged at the front end of the adsorption mechanism in parallel, and the first air inlet pipe, the second air inlet pipe and the third air inlet pipe are communicated with the air outlet end of the third spray tower.
8. The apparatus for treating organic waste gas according to claim 1, wherein the connection pipe is provided with the extractor fan at a front end of the first air intake duct, the second air intake duct, and the third air intake duct, and the heater is provided at a front end of the extractor fan.
9. The organic waste gas treatment device according to claim 1, wherein the catalyst layer is of a honeycomb structure, the gas outlet end of the catalytic combustion chamber is connected with a gas outlet pipeline, the tail end of the gas outlet pipeline is connected with an exhaust funnel, and a second fan is arranged on the gas outlet pipeline.
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| CN202020548280.0U CN212492320U (en) | 2020-04-13 | 2020-04-13 | Organic waste gas's processing apparatus |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111359406A (en) * | 2020-04-13 | 2020-07-03 | 山东欧亚化工有限公司 | Organic waste gas treatment device and treatment method |
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| CN111359406A (en) * | 2020-04-13 | 2020-07-03 | 山东欧亚化工有限公司 | Organic waste gas treatment device and treatment method |
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Granted publication date: 20210209 |