CN102029148A - Dry method desorption device for organic waste gas activated carbon adsorption - Google Patents
Dry method desorption device for organic waste gas activated carbon adsorption Download PDFInfo
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- CN102029148A CN102029148A CN 201010554364 CN201010554364A CN102029148A CN 102029148 A CN102029148 A CN 102029148A CN 201010554364 CN201010554364 CN 201010554364 CN 201010554364 A CN201010554364 A CN 201010554364A CN 102029148 A CN102029148 A CN 102029148A
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Abstract
The invention relates to a dry method desorption device for organic waste gas activated carbon adsorption, comprising an adsorption tank filled with activated carbon, a waste gas transmission channel, a purified gas transmission channel, a steam generator and a solvent recycler, wherein the adsorption tank is internally provided with a waste gas pipe through which organic waste gas flows and a steam pipe through which desorption steam flows, the steam pipe is arranged in the waste gas pipe, activated carbon is filled in the waste gas pipe and outside the steam pipe, the recycler is also provided with a vacuum pump, and the vacuum pump vacuumizes the recycler before the desorption part operates. The invention simultaneously realizes adsorption and desorption in the same adsorption tank by virtue of two paths, the activated carbon is not directly contacted with the steam, thus maintaining the activated carbon to be dry and avoiding the problems that in the original method, steam is directly used to desorb the activated carbon so that the absorption capability of the activated carbon is reduced due to moisture absorption, and secondary pollution is caused due to emission of combined steam and solvents in the desorption process. The invention has the advantages of saving energy, avoiding pollution and reducing cost.
Description
Technical field
The present invention relates to a kind of exhaust-gas treatment field, particularly relate to a kind of dry method desorption apparatus of organic exhaust gas active-carbon absorption.
Background technology
Active carbon has specific area preferably and very strong absorption, decolours and the performance that eliminates the unusual smell, and therefore usually is used as the adsorbing medium of circularly purifying system, absorbs poisonous, polluter in waste gas, the waste water.
At present, use more adsorption desorption retracting device mainly to comprise: air cleaner, adsorption tanks, condenser, separation be with, quick-fried inflator etc., and two or more adsorption tanks simultaneously or be used alternatingly.Its adsorption process is as follows: after waste gas is removed small suspended particulate through air cleaner, enter the top of adsorption tanks, after jar interior charcoal absorption, remove harmful components, the Purge gas of allow compliance with emission standards is discharged into outdoor through blower fan.On the contrary, its desorption and regeneration process is as follows: after active carbon had used a period of time, certain amount of solvent (service time, length was decided according to the content and the production time length of body weight) had been adsorbed on its surface, need carry out desorption and regeneration.Spray into from pot bottom with steam during regeneration, the solvent that adsorbs in the active carbon is steamed, become liquid through condenser condenses again, enter cylinder, separate and reclaim organic solvent, raffinate enters quick-fried inflator, discharges through behind the quick-fried gas.
With reference to application number is the Chinese patent of " 200510200344.8 ", discloses a kind of " automatic reclaiming process for industrial organic exhaust gas ", the method that this patent adopts steam desorption, static layering to reclaim.Though utilize the steam desorption have heat of transformation height, desorption fully, easy characteristics such as condensation, but also there be the shortcoming the same: when desorption with traditional desorption, have a large amount of water vapor condensations in the adsorption layer of active carbon, though the process dry wind purges but the water content of active carbon is still very high, influence its absorption property, reduced adsorption efficiency; In addition, steam temperature is higher, has just finished desorption such as need and has carried out adsorption process at once, and active carbon also can influence its desorption efficient under the temperature condition with higher.Therefore will overcome above-mentioned technical problem, certainly will need to add proper device equipment and treatment process, increase production cost, investment is big.
Summary of the invention
The object of the invention provides a kind of dry method desorption apparatus that adopts the exhaust gas active-carbon absorption of organic solvents such as dry type desorption benzene, alcohol, ketone, fat, gasoline.
For achieving the above object, the technical solution used in the present invention is:
A kind of dry method desorption apparatus of organic exhaust gas active-carbon absorption, it comprises a plurality of adsorption tanks that are filled with active carbon that are in parallel and are provided with, be used to carry the waste gas transfer passage of organic exhaust gas, the pure qi (oxygen) transfer passage that is used for delivery of purge gas, be used to make the steam raising plant of high temperature desorption steam, be used to collect the solvent recovery unit of desorption solvent, described waste gas transfer passage, adsorption tanks, the pure qi (oxygen) transfer passage constitutes absorbed portion, described steam raising plant, adsorption tanks, solvent recovery unit constitutes the desorption part, be provided with the flue gas leading of the organic exhaust gas that is used to flow through in the described adsorption tanks, the steam pipe of desorption steam is used to flow through, described steam pipe is arranged in the described flue gas leading, active carbon is filled in the described flue gas leading, outside the steam pipe, described retracting device also is provided with vavuum pump, before described desorption portion was divided work, described vavuum pump was evacuated to vacuum with described retracting device.
Preferably, described solvent recovery unit comprises the condenser that is used to cool off desorption and goes out solvent vapo(u)r, the solvent recovery jar that is used to collect cooling back solvent, and described vavuum pump is connected with the solvent recovery jar.
Preferably, described adsorption tanks are provided with Pressure gauge.
Preferably, described pure qi (oxygen) transfer passage is provided with air-introduced machine.
Because the technique scheme utilization, the present invention compared with prior art has following advantage and effect:
The present invention realizes by two-way by adsorbing in same adsorption tanks with desorption, during desorption, active carbon outside managing is carried out desorption in steam pipework, feeding high-temperature steam under the environment of negative pressure, active carbon does not directly contact with steam, keep its drying, avoided original and directly active carbon has been carried out the secondary pollution that desorption makes active carbon absorb that adsorption capacity that moisture causes descends and water vapour and solvent cause in conjunction with the back discharging in desorption process by water vapour.Its advantage is as follows:
(1), energy savings; (2), avoid polluting; (3), reduce cost.
Description of drawings
Accompanying drawing 1 is a structural representation of the present invention;
Accompanying drawing 2 is the structural representation of adsorption tanks of the present invention.
Wherein: 1, adsorption tanks; 2, waste gas transfer passage; 3, pure qi (oxygen) transfer passage; 4, flue gas leading; 5, steam pipe; 6, active carbon; 7, vavuum pump; 8, condenser; 9, solvent recovery jar; 10, Pressure gauge; 11, air-introduced machine; 12, pipeline.
The specific embodiment
Below in conjunction with drawings and Examples the present invention is further described:
The dry method desorption apparatus of a kind of organic exhaust gas active-carbon absorption as shown in Figure 1, it comprises be in parallel a plurality of adsorption tanks 1 that are filled with active carbon 6, the waste gas transfer passage 2 that is used to carry organic exhaust gas, the pure qi (oxygen) transfer passage 3 that is used for delivery of purge gas, the steam raising plant that is used to make high temperature desorption steam that is provided with, the solvent recovery unit that is used to collect the desorption solvent.
Waste gas transfer passage 2, adsorption tanks 1, pure qi (oxygen) transfer passage 3 constitute absorbed portion; Steam raising plant (not shown), adsorption tanks 1, solvent recovery unit constitute the desorption part.Be provided with the flue gas leading 4 of the organic exhaust gas that is used to flow through, the steam pipe 5 of the desorption steam that is used to flow through in the adsorption tanks 1, steam pipe 5 is arranged in the flue gas leading 4, and active carbon 6 is filled in the flue gas leading 4, outside the steam pipe 5.Wherein: solvent recovery unit comprises the condenser 8 that is used to cool off desorption and goes out solvent vapo(u)r, the solvent recovery jar 9 that is used to collect cooling back solvent; Retracting device also is provided with vavuum pump 7, and vavuum pump 7 is connected with solvent recovery jar 9; Adsorption tanks 1 also are provided with Pressure gauge 10, to guarantee when working the pressure reading in the adsorption tanks 1; In the present embodiment, be provided with altogether that 1, two adsorption tanks 1 of two adsorption tanks can replace adsorb, desorption.
In addition, pure qi (oxygen) transfer passage 3 is provided with air-introduced machine 11.Each element of whole recovery device is connected by pipeline 12.
Below the concrete method of operating of present embodiment down of setting forth:
(1), pending organic exhaust gas is through filtering the filtration of cooling system, filtering bulky grain magazine, and enter in the waste gas transfer passage 2 after the cooling of lowering the temperature, organic exhaust gas enters in the adsorption tanks 1 that adsorb work by waste gas transfer passage 2, in adsorption tanks 1, the organic exhaust gas flue gas leading 4 of flowing through, and under the absorption that is filled in active carbon 6 wherein, filtering its comprise such as benzene, alcohol, ketone, organic solvent gas such as fat, can certainly select the better NACF of adsorption function, and under the effect of air-introduced machine 11, discharge recovery system from pure qi (oxygen) transfer passage 3, in the adsorption process, the pressure of whole recovery device is malleation;
(2), after active carbon 6 absorption certain amount of solvent, carry out desorption work, before desorption, by vavuum pump 7 recovery system is evacuated to vacuum, after being in subnormal ambient by Pressure gauge 10 affirmation systems, carry out desorption, use steam raising plant to produce the high-temperature steams that temperature is 115～125 degree, when vapor (steam) temperature at 120 Du Shiyoujia, vapor stream is through steam pipe 5 and conduct heat to active carbon 6, the solvent of absorption in the active carbon 6 is steamed, be delivered to solvent recovery unit by pipeline 12;
(3), solvent vapo(u)r cools off in the condenser 8 of solvent recovery unit, is kept in the solvent recovery jar 9 after becoming organic solution after the cooling, carries out other utilization.
In the present embodiment, after active carbon 6 absorption of adsorption tanks 1 was saturated, its desorption partly carried out work, when vavuum pump 7 will wherein gas be evacuated to vacuum, a small amount of gas can enter the absorbed portion of another one adsorption tanks 1 ', makes it still can carry out absorption work.
Like this, in the whole desorption process, high-temperature steam there is no directly and contacts with active carbon, and active carbon remains drying, also can not influence its absorption property owing to drying is insufficient behind the desorption, has improved the service life and the adsorption efficiency of active carbon; Simultaneously, also avoided the secondary pollution that water vapour and solvent cause in conjunction with the back discharging in desorption process.
The foregoing description only is explanation technical conceive of the present invention and characteristics, and its purpose is to allow the personage who is familiar with this technology can understand content of the present invention and enforcement according to this, can not limit protection scope of the present invention with this.All equivalences that spirit essence is done according to the present invention change or modify, and all should be encompassed within protection scope of the present invention.
Claims (4)
1. the dry method desorption apparatus of organic exhaust gas active-carbon absorption, it comprises a plurality of adsorption tanks that are filled with active carbon that are in parallel and are provided with, be used to carry the waste gas transfer passage of organic exhaust gas, the pure qi (oxygen) transfer passage that is used for delivery of purge gas, be used to make the steam raising plant of high temperature desorption steam, be used to collect the solvent recovery unit of desorption solvent, described waste gas transfer passage, adsorption tanks, the pure qi (oxygen) transfer passage constitutes absorbed portion, described steam raising plant, adsorption tanks, solvent recovery unit constitutes the desorption part, it is characterized in that: the flue gas leading that is provided with the organic exhaust gas that is used to flow through in the described adsorption tanks, the steam pipe of desorption steam is used to flow through, described steam pipe is arranged in the described flue gas leading, active carbon is filled in the described flue gas leading, outside the steam pipe, described retracting device also is provided with vavuum pump, before described desorption portion was divided work, described vavuum pump was evacuated to vacuum with described retracting device.
2. the dry method desorption apparatus of organic exhaust gas active-carbon absorption according to claim 1, it is characterized in that: described solvent recovery unit comprises the condenser that is used to cool off desorption and goes out solvent vapo(u)r, the solvent recovery jar that is used to collect cooling back solvent, and described vavuum pump is connected with the solvent recovery jar.
3. the dry method desorption apparatus of organic exhaust gas active-carbon absorption according to claim 1, it is characterized in that: described adsorption tanks are provided with Pressure gauge.
4. the dry method desorption apparatus of organic exhaust gas active-carbon absorption according to claim 1, it is characterized in that: described pure qi (oxygen) transfer passage is provided with air-introduced machine.
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| CN2010105543646A CN102029148B (en) | 2010-11-23 | 2010-11-23 | Dry method desorption device for organic waste gas activated carbon adsorption |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102489106A (en) * | 2011-12-08 | 2012-06-13 | 孙宗长 | Method for cycle collection of exhaust gas by adopting secondary adsorption |
| CN102847412A (en) * | 2012-10-12 | 2013-01-02 | 哈尔滨工业大学 | Activated carbon fiber adsorber |
| CN103463928A (en) * | 2013-09-11 | 2013-12-25 | 中节能天辰(北京)环保科技有限公司 | Method and device for adsorbing and recovering organic waste gas |
| CN104958993A (en) * | 2015-06-23 | 2015-10-07 | 江苏中远环保科技有限公司 | Novel desorption regeneration process and device using granular active carbon adsorption and vapor indirect heating |
| CN106413850A (en) * | 2016-01-11 | 2017-02-15 | 鹤山市新科达企业有限公司 | Device and method for adsorbing and recovery processing waste gas from synthetic leather factories by activated carbon |
| CN112028300A (en) * | 2020-07-30 | 2020-12-04 | 深圳市创飞格环保实业有限公司 | Sewage treatment's sediment and floater processing collection device |
| CN116272246A (en) * | 2023-04-06 | 2023-06-23 | 河南润能科技有限公司 | Petrochemical tail gas comprehensive utilization device |
| CN117359834A (en) * | 2023-10-18 | 2024-01-09 | 安徽睿环环保科技有限公司 | Pretreatment process of waste packaging barrel with waste gas collecting and adsorbing function |
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| CN104028075A (en) * | 2014-05-31 | 2014-09-10 | 蔡博 | Device and process for recycling organic gas through low-pressure dry-type indirect heating desorption |
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| CN106413850A (en) * | 2016-01-11 | 2017-02-15 | 鹤山市新科达企业有限公司 | Device and method for adsorbing and recovery processing waste gas from synthetic leather factories by activated carbon |
| CN112028300A (en) * | 2020-07-30 | 2020-12-04 | 深圳市创飞格环保实业有限公司 | Sewage treatment's sediment and floater processing collection device |
| CN116272246A (en) * | 2023-04-06 | 2023-06-23 | 河南润能科技有限公司 | Petrochemical tail gas comprehensive utilization device |
| CN117359834A (en) * | 2023-10-18 | 2024-01-09 | 安徽睿环环保科技有限公司 | Pretreatment process of waste packaging barrel with waste gas collecting and adsorbing function |
| CN117359834B (en) * | 2023-10-18 | 2024-04-02 | 安徽睿环环保科技有限公司 | Pretreatment process of waste packaging barrel with waste gas collecting and adsorbing function |
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Address after: Suzhou City, Jiangsu province 215631 gold town Zhangjiagang City Industrial Zone after Cheng Zhu Dang Patentee after: ZHANGJIAGANG GREEN SANXING PURIFICATION SCIENCE AND TECHNOLOGY CO.,LTD. Address before: Suzhou City, Jiangsu province 215631 gold town Zhangjiagang City Industrial Zone after Cheng Zhu Dang Patentee before: Zhangjiagang Sanxing Purification Machinery Co.,Ltd. |
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Address after: 215631 Jin Gang Zhen Zhu Jia Dang Cun, Zhangjiagang City, Suzhou City, Jiangsu Province Patentee after: Zhangjiagang green Samsung Purification Technology Co.,Ltd. Address before: 215631 Houcheng zhujiadang Industrial Zone, Jingang town, Zhangjiagang City, Suzhou City, Jiangsu Province Patentee before: ZHANGJIAGANG GREEN SANXING PURIFICATION SCIENCE AND TECHNOLOGY CO.,LTD. |
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