CN101306297B - Pollution control device for preventing organic solvent gas from being short circuited - Google Patents
Pollution control device for preventing organic solvent gas from being short circuited Download PDFInfo
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- CN101306297B CN101306297B CN2008100259646A CN200810025964A CN101306297B CN 101306297 B CN101306297 B CN 101306297B CN 2008100259646 A CN2008100259646 A CN 2008100259646A CN 200810025964 A CN200810025964 A CN 200810025964A CN 101306297 B CN101306297 B CN 101306297B
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- active carbon
- carbon adsorber
- organic solvent
- activated carbon
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Abstract
The invention discloses a pollution control device for preventing short circuit caused by organic solvent gas, which comprises suction cover openings, suction fans, an activated carbon absorber 1, an activated carbon absorber 2, a low-temperature incinerator and a hot air pipe; a plurality of suction cover openings are respectively formed at outlets of gas containing the organic solvent, each suction cover opening is respectively connected with one suction fan, pipelines for connecting the outlets of the suction fans are respectively connected with the activated carbon absorber 1 and the activated carbon absorber 2, the activated carbon absorber 1 and the activated carbon absorber 2 are respectively connected with the low-temperature incinerator, the activated carbon absorber 1 and the activated carbon absorber 2 further respectively communicate with the outside by a control valve 5 and a gas outlet. The pollution control device arranges one active fan at each suction opening, thereby effectively ensuring each air opening to have sufficient suction force to suck and emit the gas of a pollution source. The water washing process is simultaneously eliminated, thereby more effectively improving the absorption capacity of activated carbon.
Description
Technical field
The present invention relates to the dusty gas emission control, particularly related to and prevent that organic solvent gas from walking the pollution control device of short circuit, can be used for chemical plant workshop pollution control.
Background technology
The technology that existing harmful dusty gas is administered as shown in Figure 1, the technology of taking usually is: a plurality of pollution sources → a plurality of inlet scoops → concentrate airduct → water to drench cleaning → charcoal absorption → blower fan → emptying.Specifically be the air-suction cover mouth 1 that a plurality of pollution sources gases pass through a plurality of inlet scoops respectively, send into water by concentrated airduct again and drench cleaning device 4 that clean after active carbon 3 absorption are discharged by air exhauster 2 at last, its power is from air exhauster 2.There is following problem in this technical matters: it is just many more that (1) pollutes many more inlet scoops, source, and the chance that gas is walked short circuit is just many more.Gas is walked short circuit and is meant owing to being aspirated by an air exhauster after the parallel connection of a plurality of inlet scoops, the discharge capacity difference of each inlet scoop dusty gas in parallel, resistance difference to suction, make that the wind-force of inlet scoop of each is uncontrollable, although can the people be the wind-force of balance adjustment inlet scoop, but a certain in process of production link has change all can make the whole system disequilibrium slightly, makes that some inlet scoops can not air draught, does not reach the effect of the pollution control of expection.(2) effect of water pouring emulsification cleaning is little, and organic solvent gas is difficult to and water dissolves each other and the mass transfer exchange coefficient is very low.(3) drench the process that emulsification is cleaned because prime is a water, so the moisture content of gas is very high, the gas that moisture content is high enters charcoal absorption, has influenced the adsorption capacity of active carbon widely.
Summary of the invention
For addressing the above problem; the purpose of this invention is to provide a kind of utilization and prevent that pernicious gas from walking the pollution control device of short circuit; realize improving effectively the effect of pollution control, optimize the production environment in worker's workshop, packing of product workshop, protection direct labor's healthy effect.
For achieving the above object, technical scheme of the present invention is:
A kind of organic solvent gas that prevents is walked the pollution control device of short circuit, comprise one of air-suction cover mouth, induced-draught fan, active carbon adsorber, active carbon adsorber two, low temperature burns device and warm-air pipe; A plurality of air-suction cover mouths are separately positioned on and contain organic solvent gas exit, each air-suction cover mouth is connected with an induced-draught fan respectively, the pipeline that connects the induced-draught fan outlet is connected with two of one of active carbon adsorber and active carbon adsorber respectively, two of one of active carbon adsorber and active carbon adsorber burns device with low temperature respectively and is connected, and two of one of active carbon adsorber and active carbon adsorber also is in communication with the outside at gas discharge outlet by control valve five respectively; The pipeline that is connected with heated air source is connected with two of active carbon adsorber with one of active carbon adsorber respectively.
For further realizing purpose of the present invention, the described pipeline that is connected with heated air source is connected with two of active carbon adsorber with one of active carbon adsorber with control valve four by control valve three respectively.
One of described active carbon adsorber and active carbon adsorber two in be provided with temperature sensor.
Two the pipeline that connects one of active carbon adsorber and active carbon adsorber is respectively equipped with control valve one and control valve two.
The principle of the invention: the present invention increases an active power-actuated induced-draught fan (being each inlet scoop) by the position at each pollution sources, and the position of pollution sources made limited encapsulation process, then the organic solvent dusty gas of collecting is adsorbed and desorption through a charcoal absorption and desorption system, adsorb and automatically switch to another charcoal absorption system after saturated, adsorb saturated active carbon and carry out desorption and regeneration automatically, the active carbon after the regeneration is waited for switching next time.
With respect to prior art, the present invention has following advantage and beneficial effect:
(1) the present invention prevents that the organic solvent gas that is harmful to from walking the method for governing pollution of short circuit is at place, each inlet scoop an active blower fan to be installed, and can guarantee effectively that like this each air port has enough suction to carry out gas suction to pollution sources.
(2) the present invention saves water-washing process in the flow process of handling the organic gas that pollutes, more effectively improves the adsorption capacity of modified activated carbon.At low-temperature catalytic burning organic solvent is burnt modified activated carbon absorption and desorption are finished desorption in same system after, make the discharging of pollution control reach discharging standards.
Description of drawings
Fig. 1 is a prior art pernicious gas handling process schematic diagram;
Fig. 2 is that the present invention prevents that organic solvent gas from walking the pollution control device structural representation of short circuit.
The specific embodiment
The present invention is further illustrated below in conjunction with drawings and Examples, but the scope of protection of present invention is not limited to the scope of embodiment statement.
As shown in Figure 2, prevent the organic solvent dusty gas walk the control device of short circuit comprise one of air-suction cover mouth 1, induced-draught fan 2, active carbon adsorber 3, active carbon adsorber 24, low temperature burns device 5 and warm-air pipe 6.A plurality of air-suction cover mouths 1 are separately positioned on and contain organic solvent gas exit, 1 in each air-suction cover mouth is not connected with an induced-draught fan 2, connect after the pipeline parallel connection of many induced-draught fans 2 outlet with 24 the pipeline that is connected one of active carbon adsorber 3 and active carbon adsorber and be connected, the 24 fixed tube roads that connect one of active carbon adsorber 3 and active carbon adsorber are respectively equipped with control valve 1 and control valve 28, one of active carbon adsorber 3 burns device 5 with low temperature respectively with 24 of active carbon adsorber and is connected, and its connecting pipe is provided with the gas discharge outlet of control valve 5 11 controls.The pipeline 6 that is connected with heated air source is connected with 24 of active carbon adsorber with one of active carbon adsorber 3 with control valve 4 10 by control valve 39 respectively.One of active carbon adsorber 3 and active carbon adsorber 24 in be provided with temperature sensor, after the gas of charcoal absorption is saturated, temperature raises in the absorber, but variation by this temperature sensor reaction temperature, after temperature raises, stop toxic gas by control valve and enter this absorber, and hot-air is fed this absorber, active carbon is carried out desorption.At this moment, open another absorber.
The air-suction cover mouth is a cover-cup type open-ended cavity that is provided with at organic solvent gas outlet place, is limited encapsulation process device, and similar extractor hood its objective is and is convenient to induced-draught fan suction organic solvent dusty gas.Induced-draught fan adopt axial flow blower, its power to satisfy to make in the air-suction cover mouth with the air-suction cover mouth outside poor greater than the 50Pa total head.One of active carbon adsorber 3 is that the container of general industry with active carbon is housed with 24 of active carbon adsorber.
In the process of harmful organic solvent master gas, at first determine the quantity of pollution sources, and corresponding one by one apolegamy air exhauster, and the position of pollution sources is provided with air-suction cover mouth 1, make limited encapsulation process, and by controlling the work done power of induced-draught fan 2, it is outer poor greater than the 50Pa total head with suspended hood to make in the air-suction cover.Open control valve 1 and control valve 5 11 then, close other control valve, the organic solvent dusty gas that induced-draught fan 2 is collected enters one of active carbon adsorber 3, harmful organic solvent gas through absorption is discharged through the pipeline of control valve five controls, after the charcoal absorption in one of active carbon adsorber 3 is saturated, the temperature sensor reaction temperature that is arranged in the absorber raises, at this moment, closed control valve 1 and control valve 5 11, open control valve 39 and control valve 28, make harmful organic solvent gas enter 24 absorption of active carbon adsorber, hot-air enters 3 pairs of active carbons of one of active carbon adsorber and carries out desorption.Gas behind the desorption enters low temperature and burns device 5, under CuO/CeO2/ γ-Al2O base metal composite catalyst effect, the low temperature that are lower than 700 degree burn (relevant Preparation of catalysts and use see that application number that the applicant proposes is 200610036787.2 Chinese patent application), after the burning, the gas qualified discharge.Adsorb saturated active carbon and realize carrying out automatically desorption and regeneration, the active carbon after the regeneration is waited for switching absorption next time.Gas through absorption is discharged in the atmosphere, and charcoal absorption and desorption are that low-temperature catalytic burning burns organic solvent finish desorption in same system after, and its discharging meets " discharge standard of air pollutants " (GB 16297-1996) of country.
Use the organic solvent gas that prevents of the present invention in main production acrylic monomers, dyeing and finishing with the workshop in certain chemical plant of resin, auxiliary agent etc. and walk the pollution control device of short circuit.This workshop is inevitable the generation and discharging volatile organic matter gas in reinforced synthetic reaction, filtration and packaging process, and the harmful organic solvent gas concentration that measures at the floss hole place of pollution abatement system original shown in Figure 1 is 1500ppm.As shown in Figure 2, utilize apparatus of the present invention transformation, at 8 gas discharge outlets air-suction cover mouth 1 is set respectively, 8 air-suction cover mouth 1 difference connecting axle flow fan 2 (each inlet scoop all correspondence are provided with an axial flow blower), be connected with 24 of one of active carbon adsorber 3 and active carbon adsorber respectively after the pipeline parallel connection of connection induced-draught fan 2,24 of one of active carbon adsorber 3 and active carbon adsorber burns device 5 with low temperature respectively and is connected.By the work done power of control induced-draught fan 2, making in the air-suction cover with suspended hood is outward that 50 Pa total heads are poor.Active carbon is GW35 * 59 type active carbons, and the catalyst that low temperature burns in the device 5 are CuO/CeO2/ γ-Al2O base metal composite catalyst, and Preparation of catalysts and using sees that application number that the applicant proposes is 200610036787.2 Chinese patent application.Demonstration according to temperature sensor, after charcoal absorption is saturated, stop the gas absorption of one of active carbon adsorber 3, connect 24 of active carbon adsorber and carry out gas absorption, one of active carbon adsorber 3 is fed 50～60 ℃ of hot-airs, active carbon is carried out desorption, the gas that produces behind the desorption enters low temperature and burns device 5 burning under temperature is 700 ℃, burning the back discharges, harmful organic solvent gas concentration that the floss hole place measures is 5ppm, far below the discharge gas concentration 1500ppm of prior art processing.
Walk the pollution control device of short circuit at certain laboratory applications organic solvent gas that prevents of the present invention that produces volatile organic solvent gases such as toluene, ethyl acetate, dimethylbenzene, styrene, methyl alcohol.The organic solvent gas concentration of its suction inlet of test is 800ppm in certain test.As shown in Figure 2, the present invention is installed prevents that organic solvent gas from walking the pollution control device of short circuit, at 5 gas discharge outlets air-suction cover mouth 1 is set respectively, 5 air-suction cover mouth 1 difference connecting axle flow fans 2, be connected with 24 of one of active carbon adsorber 3 and active carbon adsorber respectively after the pipeline parallel connection of connection induced-draught fan 2,24 of one of active carbon adsorber 3 and active carbon adsorber burns device 5 with low temperature respectively and is connected.By the work done power of control induced-draught fan 2, it is poor for the 100Pa total head outward with suspended hood to make in the air-suction cover.Active carbon is the general industry active carbon, and the catalyst that low temperature burns in the device 5 are CuO/CeO2/ γ-Al2O base metal composite catalyst, and Preparation of catalysts and using sees that application number that the applicant proposes is 200610036787.2 Chinese patent application.Demonstration according to temperature sensor, after charcoal absorption is saturated, stop the gas absorption of one of active carbon adsorber 3, connect 24 of active carbon adsorber and carry out gas absorption, one of active carbon adsorber 3 is fed 60～70 ℃ of hot-airs, active carbon is carried out desorption, the gas that produces behind the desorption enters low temperature and burns device 5 burning under temperature is 700 ℃, burn the back and discharge, in charcoal absorption and desorption system, finish desorption after low-temperature catalytic burning organic solvent burnt major part become CO
2And H
2The discharging of O.The organic solvent gas concentration of measuring at the floss hole place is 3ppm, far below the discharge gas concentration 800ppm of prior art processing.
Claims (4)
1. one kind prevents that organic solvent gas from walking the pollution control device of short circuit, it is characterized in that comprising one of air-suction cover mouth, induced-draught fan, active carbon adsorber, active carbon adsorber two, low temperature burns device and warm-air pipe; A plurality of air-suction cover mouths are separately positioned on and contain organic solvent gas exit, each air-suction cover mouth is connected with an induced-draught fan respectively, the pipeline that connects the induced-draught fan outlet is connected with two of one of active carbon adsorber and active carbon adsorber respectively, two of one of active carbon adsorber and active carbon adsorber burns device with low temperature respectively and is connected, and two of one of active carbon adsorber and active carbon adsorber also is in communication with the outside at gas discharge outlet by control valve five respectively; The pipeline that is connected with warm-air pipe is connected with two of one of active carbon adsorber and active carbon adsorber respectively.
2. the organic solvent gas that prevents according to claim 1 is walked the pollution control device of short circuit, it is characterized in that the described pipeline that is connected with heated air source is connected with two of one of active carbon adsorber and active carbon adsorber with control valve four by control valve three respectively.
3. the organic solvent gas that prevents according to claim 1 is walked the pollution control device of short circuit, it is characterized in that one of described active carbon adsorber and active carbon adsorber two in be provided with temperature sensor.
4. the organic solvent gas that prevents according to claim 1 is walked the pollution control device of short circuit, it is characterized in that: two the pipeline that connects one of active carbon adsorber and active carbon adsorber is respectively equipped with control valve one and control valve two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2008100259646A CN101306297B (en) | 2008-01-22 | 2008-01-22 | Pollution control device for preventing organic solvent gas from being short circuited |
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| CN2008100259646A CN101306297B (en) | 2008-01-22 | 2008-01-22 | Pollution control device for preventing organic solvent gas from being short circuited |
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| CN101306297A CN101306297A (en) | 2008-11-19 |
| CN101306297B true CN101306297B (en) | 2011-12-28 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101844023A (en) * | 2010-05-21 | 2010-09-29 | 安徽宏宇玻璃有限公司 | Paint exhaust treatment device |
| CN102908866A (en) * | 2012-10-22 | 2013-02-06 | 中国石油化工股份有限公司 | Adsorbing device for processing low-flow and low-concentration organic waste gas |
| CN109045994A (en) * | 2018-09-28 | 2018-12-21 | 国电环境保护研究院有限公司 | A kind of activated coke flue gas purification device and cool-down method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001003805A1 (en) * | 1999-07-14 | 2001-01-18 | Taylor Tommy G | Innovative incineration system for refuse-derived fuels, coal and petroleum coke, or chlorinated hydrocarbons |
| CN2542955Y (en) * | 2001-12-03 | 2003-04-02 | 阮前程 | Moving hood split pollutionless kitchen ventilator |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001003805A1 (en) * | 1999-07-14 | 2001-01-18 | Taylor Tommy G | Innovative incineration system for refuse-derived fuels, coal and petroleum coke, or chlorinated hydrocarbons |
| CN2542955Y (en) * | 2001-12-03 | 2003-04-02 | 阮前程 | Moving hood split pollutionless kitchen ventilator |
Non-Patent Citations (1)
| Title |
|---|
| 吴永文,李忠,奚红霞,徐科峰,韩静磊,郭建光.VOCs污染控制技术与吸附催化材料.离子交换与吸附.2003,19(1),88-95. * |
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