CN201855642U - Two-step recovery device of large-wind-quantity low-concentration organic waste gas - Google Patents
Two-step recovery device of large-wind-quantity low-concentration organic waste gas Download PDFInfo
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- CN201855642U CN201855642U CN2010202931819U CN201020293181U CN201855642U CN 201855642 U CN201855642 U CN 201855642U CN 2010202931819 U CN2010202931819 U CN 2010202931819U CN 201020293181 U CN201020293181 U CN 201020293181U CN 201855642 U CN201855642 U CN 201855642U
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Abstract
The utility model discloses a two-step recovery device of large-wind-quantity low-concentration organic waste gas, which comprises a waste-gas preprocessing system and an adsorption bed, wherein the adsorption bed is connected behind the waste-gas preprocessing system, the adsorption bed comprises a concentration fixation and adsorption bed and an adsorption and recovery bed, the adsorption and recovery bed is connected behind the concentration fixation and adsorption bed, a cooler is arranged behind the adsorption and recovery bed, and a layering slot is connected behind the cooler. In the utility model, square activated carbon with low wind resistance is adopted for adsorbing and concentrating the large-wind-quantity low-concentration organic waste gas, then activated carbon fibers with high recovery efficiency are adopted for adsorbing and recovering the large-wind-quantity low-concentration organic waste gas after the adsorption and the concentration of the square activated carbon, and thereby the usage amount of the activated carbon fibers is reduced, and the manufacturing cost and the operating cost of the recovery device are lowered. Through the utility model, the defect that the granular activated carbon or the activated carbon fibers are individually adopted for processing in the past is overcome, the recovery efficiency is improved, the waste-gas processing cost is lowered, and the recovery device is particularly applicable to the treatment of the large-wind-quantity low-concentration organic waste gas and has a wide application range.
Description
Technical field
The utility model relates to a kind of organic exhaust gas retracting device, is specifically related to a kind of large-wind-volume low-concentration organic exhaust gas two-step retracting device.
Background technology
Big air quantity organic exhaust gas mainly results from industrial coating and sprays paint in the production line production processes such as oven dry, shoemaking viscose glue, chemical plastic, printing-ink, enamel-covered wire, and these organic exhaust gas all can be indirectly or are directly discharged with the waste gas form, and organic exhaust gas must be handled just and not pollute the environment.
The processing of present most of organic exhaust gas still adopts destroy methods such as Production by Catalytic Combustion Process, firing method to handle, the destroy method main purpose is in order to reduce the total amount that organic exhaust gas enters atmosphere, to guarantee the qualified discharge of organic exhaust gas, can not carry out effective recycling to valuable organic solvent in the organic exhaust gas, not only increase the operating cost of equipment, and caused raw-material waste.Gradually have at present the NACF of employing or technology such as granular activated carbon absorption, absorption that the organic solvent in the large-wind-volume low-concentration organic exhaust gas is simply adsorbed recovery, but these recovery technologies all exist certain defective, it is mainly following 2 points:
One, because of the object handled is big air quantity organic exhaust gas, if adopt NACF to carry out adsorption treatment, because NACF just has good adsorption effect during less than 0.2m/s in air velocity, for the air velocity that reduces in the retracting device need be used a large amount of NACFs, NACF costs an arm and a leg, the per kilogram market price is up to 300 yuan at present, and cause the retracting device floor space big, adsorbent bed in the retracting device need adopt the stainless steel manufacturing, the manufacturing expense of retracting device is very high, and the operating cost of NACF retracting device is also high.So the NACF retracting device is only applicable to the improvement of little air quantity, high-concentration organic waste gas.
Two, if adopt granular activated carbon to carry out solvent recovery as sorbing material; there is the problem that air-flow in the retracting device can not be too fast equally; cause occupation area of equipment big; adsorbent bed in the retracting device need adopt the stainless steel manufacturing; the manufacturing expense of retracting device is very high; and the adsorption rate of granular activated carbon is low, retracting device stops up easily, retracting device is to problems such as gas-flow resistance are big, and its organic efficiency specific activity charcoal fibrous recovery unit is low.
Summary of the invention
The utility model purpose provides a kind of large-wind-volume low-concentration organic exhaust gas two-step retracting device that can effectively overcome the various shortcomings that existed when in the past adopting NACF or granular activated carbon to reclaim organic exhaust gas separately.
The technical scheme that the utility model purpose is taked is: the adsorbent bed after the two-step method retracting device comprises the waste gas pretreatment system and is connected in the waste gas pretreatment system, wherein said adsorbent bed comprises that concentrating fixed adsorption bed reclaims bed with absorption, concentrate the fixed adsorption bed input and connect waste gas pretreatment system output, concentrate the fixed adsorption bed output and connect an absorption recovery bed input, absorption is reclaimed the bed output and is connected the cooler input, and the cooler output connects layering groove input.
Described concentrated fixed adsorption bed is provided with more than three, all be provided with square active carbon in each concentrated fixed adsorption bed, each concentrated fixed adsorption bed all is provided with exhaust gas inlet valve and purified gas outlet valve, the exhaust gas inlet valve connects waste gas pretreatment system output, and the purified gas outlet valve is connected to discharging blower fan input through pipeline; Each concentrated fixed adsorption bed all is provided with hot-air inlets valve and concentrated waste gas outlet valve, the hot-air inlets valve connects water vapour heater output, water vapour heater input connects air inlet blower fan and water vapour transfer valve, concentrate the waste gas outlet valve and connect thickened waste gas meter cooler input, thickened waste gas meter cooler output is connected at the intake valve that the bed front end is reclaimed in absorption, absorption is reclaimed in the bed and is provided with NACF, absorption is reclaimed bed and also is provided with the purified gas outlet valve, water vapour transfer valve and mixed vapour outlet valve, the mixed vapour outlet valve connects the cooler input, cooler is the mixed vapour condenser, and the cooler output connects layering groove input.
Also be provided with automatic control system in the described two-step method retracting device, be respectively equipped with gas concentration detection apparatus in described concentrated fixed adsorption bed, the absorption recovery bed and link to each other with automatic control system.
The beneficial effects of the utility model are: the utility model adopts the square active carbon of low windage large-wind-volume low-concentration organic exhaust gas to be adsorbed concentrated, its processing capacity improves greatly, and the concentrated fixed adsorption bed of this structure can adopt common carbon steel material manufacturing, after concentrating by square charcoal absorption, adopt the high NACF of organic efficiency to adsorb recovery again, reduce the use amount of NACF, reduced manufacturing cost and operating cost that bed is reclaimed in concentrated fixed adsorption bed and absorption.The shortcoming that has adopted granular activated carbon or NACF to handle separately before the utility model has overcome has improved organic efficiency, has reduced the exhaust-gas treatment cost, is specially adapted to the improvement of big air quantity, low-concentration organic exhaust gas, has wide range of applications.
Description of drawings
Now in conjunction with the accompanying drawings the utility model is further elaborated:
Fig. 1 is the structural representation of the utility model large-wind-volume low-concentration organic exhaust gas two-step retracting device.
The specific embodiment
As shown in Figure 1, adsorbent bed 2 after the utility model comprises waste gas pretreatment system 1 and is connected in waste gas pretreatment system 1, wherein said adsorbent bed 2 comprises that concentrating fixed adsorption bed 21 reclaims bed 22 with absorption, concentrate fixed adsorption bed 21 inputs and connect waste gas pretreatment system 1 output, concentrate fixed adsorption bed 21 outputs and connect absorption recovery bed 22 inputs, absorption is reclaimed bed 22 outputs and is connected cooler 3 inputs, and cooler 3 outputs connect layering groove 4 inputs.
Described concentrated fixed adsorption bed 21 is provided with more than three, all be provided with square active carbon in each concentrated fixed adsorption bed 21, each concentrated fixed adsorption bed 21 all is provided with exhaust gas inlet valve 2101 and purified gas outlet valve 2102, exhaust gas inlet valve 2101 connects waste gas pretreatment system 1 output, and purified gas outlet valve 2102 is connected to discharging blower fan 5 inputs through pipeline; Each concentrated fixed adsorption bed 21 all is provided with hot-air inlets valve 2103 and concentrated waste gas outlet valve 2104, hot-air inlets valve 2103 connects water vapour heater 6 outputs, water vapour heater 6 inputs connect air inlet blower fan 7 and water vapour transfer valve 601, concentrate waste gas outlet valve 2104 and connect thickened waste gas meter cooler 23 inputs, thickened waste gas meter cooler 23 outputs are connected at the intake valve 2201 that bed 22 front ends are reclaimed in absorption, absorption is reclaimed in the bed 22 and is provided with NACF, absorption is reclaimed bed 22 and also is provided with purified gas outlet valve 2202, water vapour transfer valve 2203 and mixed vapour outlet valve 2204, mixed vapour outlet valve 2204 connects cooler 3 inputs, cooler 3 is the mixed vapour condenser, and cooler 3 outputs connect layering groove 4 inputs.
Described two-step method retracting device also is provided with automatic control system 8, be respectively equipped with gas concentration detection apparatus 211,221 in described concentrated fixed adsorption bed 21, the absorption recovery bed 22 and link to each other with automatic control system 8, automatic control system 8 detects automatically and the control retracting device moves.
Claims (3)
1. large-wind-volume low-concentration organic exhaust gas two-step retracting device, adsorbent bed after comprising the waste gas pretreatment system and being connected in the waste gas pretreatment system, it is characterized in that: described adsorbent bed comprises that concentrating fixed adsorption bed reclaims bed with absorption, concentrate the fixed adsorption bed input and connect waste gas pretreatment system output, concentrate the fixed adsorption bed output and connect an absorption recovery bed input, absorption is reclaimed the bed output and is connected the cooler input, and the cooler output connects layering groove input.
2. a kind of large-wind-volume low-concentration organic exhaust gas two-step retracting device according to claim 1, it is characterized in that: described concentrated fixed adsorption bed is provided with more than three, all be provided with square active carbon in each concentrated fixed adsorption bed, each concentrated fixed adsorption bed all is provided with exhaust gas inlet valve and purified gas outlet valve, the exhaust gas inlet valve connects waste gas pretreatment system output, and the purified gas outlet valve is connected to discharging blower fan input through pipeline; Each concentrated fixed adsorption bed all is provided with hot-air inlets valve and concentrated waste gas outlet valve, the hot-air inlets valve connects water vapour heater output, water vapour heater input connects air inlet blower fan and water vapour transfer valve, concentrate the waste gas outlet valve and connect thickened waste gas meter cooler input, thickened waste gas meter cooler output is connected at the intake valve that the bed front end is reclaimed in absorption, absorption is reclaimed in the bed and is provided with NACF, absorption is reclaimed bed and also is provided with the purified gas outlet valve, water vapour transfer valve and mixed vapour outlet valve, the mixed vapour outlet valve connects the cooler input, cooler is the mixed vapour condenser, and the cooler output connects layering groove input.
3. a kind of large-wind-volume low-concentration organic exhaust gas two-step retracting device according to claim 1 and 2, it is characterized in that: also be provided with automatic control system in the described two-step method retracting device, be respectively equipped with gas concentration detection apparatus in described concentrated fixed adsorption bed, the absorption recovery bed and link to each other with automatic control system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202931819U CN201855642U (en) | 2010-08-16 | 2010-08-16 | Two-step recovery device of large-wind-quantity low-concentration organic waste gas |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202931819U CN201855642U (en) | 2010-08-16 | 2010-08-16 | Two-step recovery device of large-wind-quantity low-concentration organic waste gas |
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| CN201855642U true CN201855642U (en) | 2011-06-08 |
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| CN2010202931819U Expired - Lifetime CN201855642U (en) | 2010-08-16 | 2010-08-16 | Two-step recovery device of large-wind-quantity low-concentration organic waste gas |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101912714A (en) * | 2010-08-16 | 2010-12-15 | 大拇指环保科技集团(福建)有限公司 | Large-wind-volume low-concentration organic exhaust gas two-step recycling device and method |
| CN102380284A (en) * | 2011-09-14 | 2012-03-21 | 北京化工大学常州先进材料研究院 | Device and method for adsorbing, recovering and treating organic exhaust gas by aerogel |
| CN105169886A (en) * | 2015-10-30 | 2015-12-23 | 黄文科 | Efficient energy-saving large-air-quantity low-concentration organic waste gas recovery and treatment device and method |
| CN106731461A (en) * | 2016-08-03 | 2017-05-31 | 石家庄市滕泰环保设备有限公司 | The tandem adsorption system and technique of a kind of carbon disulfide |
-
2010
- 2010-08-16 CN CN2010202931819U patent/CN201855642U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101912714A (en) * | 2010-08-16 | 2010-12-15 | 大拇指环保科技集团(福建)有限公司 | Large-wind-volume low-concentration organic exhaust gas two-step recycling device and method |
| CN102380284A (en) * | 2011-09-14 | 2012-03-21 | 北京化工大学常州先进材料研究院 | Device and method for adsorbing, recovering and treating organic exhaust gas by aerogel |
| CN105169886A (en) * | 2015-10-30 | 2015-12-23 | 黄文科 | Efficient energy-saving large-air-quantity low-concentration organic waste gas recovery and treatment device and method |
| CN106731461A (en) * | 2016-08-03 | 2017-05-31 | 石家庄市滕泰环保设备有限公司 | The tandem adsorption system and technique of a kind of carbon disulfide |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20110608 Effective date of abandoning: 20130724 |
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| RGAV | Abandon patent right to avoid regrant |