CN101745287A - Waste gas reclamation treatment system for waste refrigerating electric appliances and method - Google Patents
Waste gas reclamation treatment system for waste refrigerating electric appliances and method Download PDFInfo
- Publication number
- CN101745287A CN101745287A CN201010019538A CN201010019538A CN101745287A CN 101745287 A CN101745287 A CN 101745287A CN 201010019538 A CN201010019538 A CN 201010019538A CN 201010019538 A CN201010019538 A CN 201010019538A CN 101745287 A CN101745287 A CN 101745287A
- Authority
- CN
- China
- Prior art keywords
- waste
- gas
- waste gas
- absorption
- carbon adsorption
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Abstract
The invention discloses a waste gas reclamation treatment system for waste refrigerating electric appliances, which comprises an adsorption device, a desorption device and an absorption system. The adsorption device comprises at least two groups of active carbon adsorption beds connected in parallel through a pipeline; each group of active carbon adsorption beds is provided with two pairs of gas inlets and gas outlets, wherein one pair of gas inlet and gas outlet are communicated with a waste gas inlet and a purified gas exhaust port respectively, and the other pair of gas inlet and gas outlet are communicated with the desorption device respectively; the waste gas outlet of the desorption device is communicated with the gas inlet of the absorption system; and the gas outlet of the absorption system is communicated with the waste gas inlet. The invention also discloses a waste gas reclamation method using the system. The system has the advantages of low investment cost and operation and maintenance expenses; a plurality of groups of active carbon adsorption beds can alternately perform adsorption and desorption, so the cyclic purification process of Freon containing waste gas is realized; and the desorbed high-concentration waste gas enters the absorption system to be reclaimed and treated, so the reclamation rate is high, the requirements for batch treatment, safety and environmental protection can be met, and secondary pollution is avoided.
Description
Technical field
The present invention relates to waste and old electric electrical equipment recovery technology field, be specifically related to a kind of waste gas reclamation treatment system for waste refrigerating electric appliances and method.
Background technology
Waste refrigerating electric appliances is in the process of manually disassembling; can cause the foaming agent gas (mainly being freon and pentamethylene) in the polyurethane foam layer to be directly released in the atmosphere; freon has effumability; ozone layer there is great destruction; can cause adverse consequences such as global warming and ozone cavity; therefore, waste refrigerating electric appliances disassemble can adopt usually in the process special technology and the specialty equipment freon is recycled.
At present, the method that reclaims freon mainly contains two kinds: a kind of is to utilize ultralow temperature cooling freon mist, and liquefaction freon is so that collect.Developed country such as the U.S., Germany adopts recycling complete set of equipments totally-enclosed, full-automatic formula to carry out at the recycling of Freon gas, its processing technological flow is: in totally enclosed recovery and processing system waste electrical equipment is carried out the integral body fragmentation earlier, in shattering process, utilize liquid nitrogen to make low temperature environment (below 100 ℃) condensation freon, obtain collecting behind the liquid form of freon.Can obtain the black brittleness of material when collecting liquid freon again according to this technology; Another kind method is the freon that adopts in the active material absorption mist, realizes gas cleaning is carried out desorption to active material, freon in the centralized collection active material then.A kind of freon retracting device of Japan's development, employing as cellular active carbon have 95% the ability that reclaims as absorbing material to the freon more than 99.97%, improved the rate of recovery greatly, do not use steam during recovery, so do not produce hydrochloric acid, not etching apparatus.
In developed country, the freon treatment process of waste refrigerating electric appliances and equipment is comparative maturity all, has waste gas rate of recovery height, can not cause the advantage of secondary pollution, still, the manufacturing of technology, operation and maintenance cost are all very high, and the later maintenance of equipment and operating cost are also higher; And that China contains the recycling technology of waste refrigerating electric appliances of blowing agent is also relatively backward, generally is the recovery and treatment method that adopts the handicraft workshop formula, can't satisfy the requirement of mass disposal and safety and environmental protection, also causes serious secondary pollution easily.China does not occur the waste gas of waste refrigerating electric appliances is carried out the device that specialty reclaims so far as yet.
Summary of the invention
One object of the present invention is to provide a kind of waste gas reclamation treatment system for waste refrigerating electric appliances, has reduced cost of investment, operation and maintenance cost usefulness, and waste gas rate of recovery height, can realize the continuous service of producing.
Purpose of the present invention realizes by following technical measures: a kind of waste gas reclamation treatment system for waste refrigerating electric appliances, it is characterized in that comprising adsorbent equipment, desorption apparatus and absorption system, described adsorbent equipment comprises the activated carbon adsorption bed of at least two groups by the pipeline parallel connection, every group of activated carbon adsorption bed is provided with two pairs of air inlets and gas outlet, wherein a pair of air inlet and gas outlet are respectively and exhaust gas inlet, the Purge gas outlet is communicated with, another is communicated with desorption apparatus respectively with the gas outlet air inlet, the waste gas outlet of described desorption apparatus communicates with the air inlet of absorption system, and the gas outlet of described absorption system communicates with exhaust gas inlet.
The course of work of the present invention is: the waste gas that contains freon that waste refrigerating electric appliances is disassembled, produce in the shattering process enters activated carbon adsorption bed in the adsorption cleaning path of unlatching, freon is by charcoal absorption, and purified gas gives off recovery and processing system from the Purge gas outlet; After the charcoal absorption of above-mentioned activated carbon adsorption bed is saturated, close the residing adsorption cleaning of this activated carbon adsorption bed path, open other adsorption cleaning path simultaneously, waste gas is adsorbed with regard to entering the activated carbon adsorption bed in these paths; Desorption apparatus carries out desorption to the active carbon after saturated, forms the freon air-flow of high concentration, enters absorption system and recycles, and the gas that absorbs after handling enters adsorbent bed once more.
Activated carbon adsorption bed of the present invention can be provided with many groups according to the actual treatment amount of waste gas, cost of investment, operation and maintenance cost are low, many group activated carbon adsorption beds can hocket absorption, desorption process have realized containing the circularly purifying process of freon waste gas, realize the continuous service of production simultaneously; High-concentration waste gas through desorption enters the absorption system recycling, and rate of recovery height can satisfy the requirement of mass disposal and safety and environmental protection, can not cause secondary pollution.
As a kind of improvement of the present invention, described desorption apparatus comprises heater and blower fan, the air-supply end of described blower fan is connected with the import of heater, the air intake of described blower fan is connected with the air inlet of activated carbon adsorption bed, the place ahead pipeline of this connecting portion is provided with the air port that is used for air intake, the outlet of described heater is communicated with the gas outlet of activated carbon adsorption bed, and the air inlet of described absorption system is arranged on the pipeline between blower fan and the heater.
Air-flow after the heater via heating is blowed by blower fan, by the desorbing gas of activated carbon adsorption bed to charcoal absorption, waste gas behind the desorption enters absorption system and absorbs processing, further improved the desorption rate of active carbon through the high temperature gas flow after the heater heating, waste gas major part behind the desorption can enter absorption system, and a spot of waste gas also can be crossed heater with air communication and enters activated carbon adsorption bed, and enter absorption system together with desorption gas, make the fast quick-recovery activity of active carbon, so that carry out absorption next time.
As one embodiment of the present invention, described absorption system comprises the absorption tower and be used for spraying the spray equipment of absorption liquid in the absorption tower, the air inlet on described absorption tower is the air inlet of absorption system, this air inlet is positioned at the bottom on absorption tower, the gas outlet on described absorption tower is positioned at the top on absorption tower, and this gas outlet is the gas outlet of described absorption system; Bottom on described absorption tower also is provided with the absorption cell that is used to store waste liquid.Waste gas behind the desorption of the present invention enters the absorption tower, spray absorption liquid by spray equipment and absorb waste gas, becoming the waste liquid that contains high concentration freon is stored in the absorption cell, adsorb and enter adsorbent bed once more, and discharge by the Purge gas outlet through the waste gas that still contains the low dose fluoride Leon after the absorbing gas outlet by the absorption tower.
As a kind of improvement of the present invention, be filled with filler in the described absorption tower, described filler is filled along the longitudinal divisions on absorption tower, has feeding port corresponding to the filling position of every section filler.Filler of the present invention absorbs gas behind the freon for absorption liquid, can further purify, and improves the waste gas rate of recovery, and the filler of segmentation setting is convenient to change from feeding port.
As improvement of the present invention, described spray equipment comprises spray head, the water pump that is connected by pipeline and is used for the heat exchanger of cooling and absorbing liquid, described spray head is located at the top in the described absorption tower, described heat exchanger is arranged on the place ahead pipeline of described spray head, described water pump pressurization makes absorption liquid rise to the cat head on absorption tower along pipeline, after the heat exchanger cooling, in the absorption tower, spray absorption liquid by spray head and be used to absorb waste gas.
The present invention can also do following improvement, is provided with condenser in described exhaust gas inlet.The waste gas of collecting reduces the temperature of waste gas at first by condenser, can improve the adsorption capacity of active carbon to lower boiling freon.
Be respectively equipped with the detector that is used for monitoring in real time exhaust gas concentration on exhaust gas inlet of the present invention and the Purge gas outlet.The exhaust gas concentration of monitoring when the detector of outlet can carry out desorption this moment and absorb handling during near discharge standard.
Another object of the present invention provides the waste refrigerating electric appliances gas recovery method that uses above-mentioned waste refrigerating electric appliances gas recovery system.
Purpose of the present invention realizes by following technical measures: a kind of waste refrigerating electric appliances gas recovery method that utilizes above-mentioned refrigerating electric appliances gas recovery system is characterized in that may further comprise the steps:
(1) waste refrigerating electric appliances enters activated carbon adsorption bed in the adsorption cleaning path of unlatching at the waste gas of disassembling, produce when broken, flow through this activated carbon adsorption bed and being adsorbed of waste gas, and purified gas is discharged from the Purge gas outlet;
(2) treat the active carbon on the activated carbon adsorption bed described in the step (1) absorb saturated after, close this adsorption cleaning path, activated carbon adsorption bed place;
(3) open desorption apparatus and absorption system, and open the adsorption cleaning path at other activated carbon adsorption bed place, when the activated carbon adsorption bed in this path adsorbs waste gas, by desorption apparatus to the adsorbed waste gas desorption of saturated active carbon in the step (2);
(4) waste gas behind the desorption enters absorption system and absorbs processing.
As a kind of improvement of the present invention, absorb the gas of handling through absorption system and enter exhaust gas inlet, by activated carbon adsorption bed absorption, further purify the back and discharge.
As a further improvement on the present invention, waste gas and absorption system absorb the gas handled enter activated carbon adsorption bed after condensations.
Compared with prior art, the present invention has following significant effect:
(1) the present invention adopts the parallel connections of many group activated carbon adsorption beds, and activated carbon adsorption bed can hocket absorption, desorption have been realized the circularly purifying process of freon waste gas, have guaranteed the continuous service of production.
(2) waste gas adsorbs once more through adsorbing, absorb and absorbing the gas of handling, and makes and can satisfy waste gas rate of recovery height of the present invention the requirement of mass disposal and safety and environmental protection, and can not cause secondary pollution.
(3) employing freon concentration detector is monitored the freon concentration in the waste gas in real time, judges the adsorbed state of activated carbon adsorption bed, in time carries out the switching of adsorbent bed and Regenerative beds, guarantees the safe concentration and the qualified discharge of pernicious gas in the working space.
(4) activated carbon adsorption bed of the present invention can be realized the safe desorption of Freon gas.
(5) the present invention can adjust adsorption time, desorption time, desorption temperature and condensation temperature according to the freon kind, prevents blast, guarantees emission compliance and saves operating cost.
(6) of the present invention simple in structure, greatly reduce cost of investment, make operation and maintenance cost low, applied widely, be particularly useful for the waste gas recycling of waste refrigerating electric appliances.
Description of drawings
The present invention is described in further detail below in conjunction with the drawings and specific embodiments.
Fig. 1 is a plan structure schematic diagram of the present invention;
Fig. 2 is a schematic side view of the present invention;
Fig. 3 is a technological process block-diagram of the present invention.
The specific embodiment
As Fig. 1, shown in 2, it is a kind of waste gas reclamation treatment system for waste refrigerating electric appliances of the present invention, comprise adsorbent equipment, desorption apparatus and absorption system, adsorbent equipment comprises two groups of activated carbon adsorption beds 1 by the pipeline parallel connection, 2, every group of activated carbon adsorption bed is provided with two pairs of air inlets and gas outlet, wherein a pair of air inlet and gas outlet respectively with exhaust gas inlet 3, Purge gas outlet 4 is communicated with, be provided with blower fan 6a at Purge gas outlet 4, another is communicated with desorption apparatus respectively with the gas outlet air inlet, the waste gas outlet of desorption apparatus communicates with the air inlet of absorption system, and the gas outlet of absorption system communicates with exhaust gas inlet 3.Desorption apparatus comprises heater 5 and blower fan 6, the air-supply end of blower fan 6 is connected with the import of heater 5, the air intake of blower fan 6 and activated carbon adsorption bed 1,2 air inlet connects, the place ahead pipeline of this connecting portion is provided with the air port 7 that is used for air intake, the outlet of heater 5 and activated carbon adsorption bed 1,2 gas outlet is communicated with, absorption system comprises absorption tower 8 and be used for spraying the spray equipment of absorption liquid in absorption tower 8, the air inlet on absorption tower 8 is the air inlet of absorption system, be arranged on the pipeline between blower fan 6 and the heater 5, this air inlet is positioned at the bottom on absorption tower 8, the gas outlet on absorption tower 8 is positioned at the top on absorption tower 8, this gas outlet is communicated with exhaust gas inlet 3, be provided with condenser 12 in exhaust gas inlet 3, condenser 12 and its accessory evaporimeter, water tank, cold machine connects to form condensing unit, condenser 12 is positioned on the exhaust gas inlet 3, and condenser 12 can cool off to waste gas and through the gas that absorbs after handling, to strengthen the adsorption capacity of active carbon to freon; 8 bottom also is provided with absorption cell on the absorption tower, and this absorption cell is used to store the waste liquid that contains high concentration freon after absorption liquid absorbs.
Be filled with filler in the absorption tower 8, filler along the absorption tower 8 longitudinal divisions fill, have feeding port 81 corresponding to the filling position of every section filler, by feeding port 81 is convenient filler is changed.
Spray equipment comprises spray head 9, the water pump 10 that is connected by pipeline and is used for the heat exchanger 11 of cooling and absorbing liquid, spray head 9 is located at the top in the absorption tower 8, heat exchanger 11 is arranged on the place ahead pipeline of spray head 9, and heat exchanger 11 is used for absorption liquid is cooled off, to reduce the volatilization of absorption liquid.
On exhaust gas inlet 3 and Purge gas outlet 4, be respectively equipped with the detector that is used for monitoring in real time freon concentration, the exhaust gas concentration of monitoring when the detector of outlet is during near discharge standard, can carry out desorption this moment and absorb handling, realize the switching of adsorbent bed and Regenerative beds, and open new adsorption cleaning path and adsorb, realize the circularly purifying process.
As shown in Figure 3, utilize above-mentioned waste refrigerating electric appliances gas recovery system to carry out the waste gas recovery and treatment method, may further comprise the steps:
(1) waste refrigerating electric appliances enters activated carbon adsorption bed the adsorption cleaning path of unlatching at the freon waste gas of disassembling, produce when broken from exhaust gas inlet, flow through this activated carbon adsorption bed and being adsorbed of waste gas, purified gas is forced to discharge from the Purge gas outlet by blower fan.
(2) treat the active carbon on the activated carbon adsorption bed described in the step (1) absorb saturated after, close this adsorption cleaning path, activated carbon adsorption bed place;
(3) open desorption apparatus and absorption system, and open the adsorption cleaning path at other activated carbon adsorption bed place, when the activated carbon adsorption bed in this path adsorbs waste gas, by desorption apparatus to the adsorbed waste gas desorption of saturated active carbon in the step (2);
(4) waste gas behind the desorption enters absorption system and absorbs processing, collects through absorption liquid to absorb the waste liquid that waste gas forms, and enters exhaust gas inlet through absorbing the low concentration Freon gas of handling that contains, by activated carbon adsorption bed absorption, and discharge after further purifying; Waste gas and absorption system absorb the gas of handling and all enter activated carbon adsorption bed after condensations.
In step (4), the absorption tower of flowing through from bottom to up of the waste gas behind the desorption, absorbing through absorption liquid becomes waste liquid and is recovered in the absorption cell; Further purify by filler again through the gas after the absorption liquid absorption.
In step (2), respectively waste gas and Purge gas are taken a sample in exhaust gas inlet and Purge gas outlet, and detect its index, judge whether to carry out the switching of adsorbent bed and Regenerative beds according to testing result, the exhaust gas concentration of monitoring when the detector of outlet should carry out desorption and absorb processing procedure during near discharge standard.
The course of work of the present invention is:
When the active carbon on two groups of activated carbon adsorption beds was activity, valve 13 was opened, and waste gas enters condenser 12 by threeway 14,,, by valve 16, discharges from blower fan 6a after the gas purification through adsorbent bed 1 by valve 15; Before threeway 14 air inlet pipe freon detector is housed, outlet freon detector is housed before the blower fan 6a, monitoring in real time enters waste gas and discharges the freon concentration of gas, and knows the active carbon saturated conditions thus.The exhaust gas concentration of monitoring when the detector of outlet is during near discharge standard, then valve-off 15, valve 16, and Open valve 17, valve 18, waste gas purifies via adsorbent bed 2, forms new freon waste gas and adsorbs the path.
Adsorbent bed 1 is carried out desorption handle, Open valve 19, the valve 21 on valve 20, the air port 7, Open valve 22, valve 23 utilize hot blast to accelerate the desorption of freon and the regeneration of active carbon.The high concentration freon gas stream of desorption enters absorption system by valve 23, after the Freon gas of high concentration enters absorption tower 8, freon is absorbed by liquid absorption, be stored in the absorption cell, gas is further purified by filler, overflow in 8 top from the absorption tower, and enter adsorbent equipment once more by threeway 14.After adsorbent bed 2 absorption are saturated, adjust respective valves, can carry out adsorbent bed 1 absorption, adsorbent bed 2 desorptions, thus realize the circulation running.
Except adopting two groups of activated carbon adsorption beds, according to the requirement of actual exhaust-gas treatment amount, can also adopt two groups of above activated carbon adsorption beds, can open wherein many group adsorbent beds simultaneously and adsorb, be used alternatingly with other many group adsorbent beds, realize handling the purpose of large quantity of exhaust gas and purification capable of circulation.
Embodiments of the present invention are not limited thereto; according to foregoing of the present invention; ordinary skill knowledge and customary means according to this area; do not breaking away under the above-mentioned basic fundamental thought of the present invention prerequisite; the present invention can also make modification, replacement or the change of other various ways, all drops within the rights protection scope of the present invention.
Claims (10)
1. waste gas reclamation treatment system for waste refrigerating electric appliances, it is characterized in that: comprise adsorbent equipment, desorption apparatus and absorption system, described adsorbent equipment comprises the activated carbon adsorption bed of at least two groups by the pipeline parallel connection, every group of activated carbon adsorption bed is provided with two pairs of air inlets and gas outlet, wherein a pair of air inlet is communicated with exhaust gas inlet, Purge gas outlet respectively with the gas outlet, another is communicated with desorption apparatus respectively with the gas outlet air inlet, and the waste gas outlet of described desorption apparatus communicates with the air inlet of absorption system.
2. waste gas reclamation treatment system for waste refrigerating electric appliances according to claim 1, it is characterized in that: described desorption apparatus comprises heater and blower fan, the air-supply end of described blower fan is connected with the import of heater, the air intake of described blower fan is connected with the air inlet of activated carbon adsorption bed, the place ahead pipeline of this connecting portion is provided with the air port that is used for air intake, the outlet of described heater is communicated with the gas outlet of activated carbon adsorption bed, and the air inlet of described absorption system is arranged on the pipeline between blower fan and the heater.
3. waste gas reclamation treatment system for waste refrigerating electric appliances according to claim 1 and 2, it is characterized in that: described absorption system comprises the absorption tower and be used for spraying the spray equipment of absorption liquid in the absorption tower, the air inlet on described absorption tower is the air inlet of absorption system, this air inlet is positioned at the bottom on absorption tower, the gas outlet on described absorption tower is positioned at the top on absorption tower, and this gas outlet is communicated with described exhaust gas inlet; Bottom on described absorption tower also is provided with the absorption cell that is used to store waste liquid.
4. waste gas reclamation treatment system for waste refrigerating electric appliances according to claim 3 is characterized in that: be filled with filler in the described absorption tower, described filler is filled along the longitudinal divisions on absorption tower, has feeding port corresponding to the filling position of every section filler.
5. waste gas reclamation treatment system for waste refrigerating electric appliances according to claim 3, it is characterized in that: described spray equipment comprises spray head, the water pump that is connected by pipeline and is used for the heat exchanger of cooling and absorbing liquid, described spray head is located at the top in the described absorption tower, and described heat exchanger is arranged on the place ahead pipeline of described spray head.
6. waste gas reclamation treatment system for waste refrigerating electric appliances according to claim 3 is characterized in that: be provided with condenser in described exhaust gas inlet.
7. waste gas reclamation treatment system for waste refrigerating electric appliances according to claim 1 is characterized in that: be respectively equipped with the detector that is used for monitoring in real time exhaust gas concentration on described exhaust gas inlet and the Purge gas outlet.
8. one kind is utilized the described waste refrigerating electric appliances gas recovery system of claim 1 to carry out the waste gas recovery and treatment method, it is characterized in that may further comprise the steps:
(1) waste refrigerating electric appliances enters activated carbon adsorption bed in the adsorption cleaning path of unlatching at the waste gas of disassembling, produce when broken, flow through this activated carbon adsorption bed and being adsorbed of waste gas, and purified gas is discharged from the Purge gas outlet;
(2) treat the active carbon on the activated carbon adsorption bed described in the step (1) absorb saturated after, close this adsorption cleaning path, activated carbon adsorption bed place;
(3) open desorption apparatus and absorption system, and open the adsorption cleaning path at other activated carbon adsorption bed place, when the activated carbon adsorption bed in this path adsorbs waste gas, by desorption apparatus to the adsorbed waste gas desorption of saturated active carbon in the step (2);
(4) waste gas behind the desorption enters absorption system and absorbs processing.
9. recovery and treatment method according to claim 8 is characterized in that: absorb the gas of handling through absorption system and enter exhaust gas inlet, by activated carbon adsorption bed absorption, further purify the back and discharge.
10. recovery and treatment method according to claim 9 is characterized in that: waste gas and absorption system absorb the gas of handling and enter activated carbon adsorption bed after condensations.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010019538A CN101745287A (en) | 2010-01-20 | 2010-01-20 | Waste gas reclamation treatment system for waste refrigerating electric appliances and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010019538A CN101745287A (en) | 2010-01-20 | 2010-01-20 | Waste gas reclamation treatment system for waste refrigerating electric appliances and method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101745287A true CN101745287A (en) | 2010-06-23 |
Family
ID=42473282
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010019538A Pending CN101745287A (en) | 2010-01-20 | 2010-01-20 | Waste gas reclamation treatment system for waste refrigerating electric appliances and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101745287A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102430315A (en) * | 2011-10-13 | 2012-05-02 | 赵胜 | Process for recycling 1-fluorotrichloromethane from insulating materials of refrigeration appliances |
| CN107854930A (en) * | 2017-11-25 | 2018-03-30 | 佛山市龙兄虎弟环保设备有限公司 | A kind of waste gas processing method and processing system |
| CN108896497A (en) * | 2018-04-04 | 2018-11-27 | 王惠勇 | Air monitoring device and the exhaust-gas treatment line for being equipped with air monitoring device |
-
2010
- 2010-01-20 CN CN201010019538A patent/CN101745287A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102430315A (en) * | 2011-10-13 | 2012-05-02 | 赵胜 | Process for recycling 1-fluorotrichloromethane from insulating materials of refrigeration appliances |
| CN102430315B (en) * | 2011-10-13 | 2014-07-23 | 赵胜 | Process for recycling 1-fluorotrichloromethane from insulating materials of refrigeration appliances |
| CN107854930A (en) * | 2017-11-25 | 2018-03-30 | 佛山市龙兄虎弟环保设备有限公司 | A kind of waste gas processing method and processing system |
| CN108896497A (en) * | 2018-04-04 | 2018-11-27 | 王惠勇 | Air monitoring device and the exhaust-gas treatment line for being equipped with air monitoring device |
| CN108896497B (en) * | 2018-04-04 | 2023-12-01 | 王惠勇 | Air monitoring device and exhaust gas treatment line provided with same |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102179129B (en) | Treatment process for absorbed condensate waste gas | |
| CN202460412U (en) | Organic waste gas treatment device | |
| CN102029148B (en) | Dry method desorption device for organic waste gas activated carbon adsorption | |
| CN106413850A (en) | Device and method for adsorbing and recovery processing waste gas from synthetic leather factories by activated carbon | |
| CN102441310A (en) | Method for recovering oil gas and device | |
| CN101301558A (en) | Activated carbon fiber organic solvent recovery novel technique using nitrogen as desorption medium | |
| CN203540289U (en) | Treating and recovering device of organic waste gas with low concentration and large air volume | |
| CN107261754A (en) | VOCs waste gas recovery processing method and processing devices | |
| CN103463932B (en) | Method and device for treating and recycling organic exhaust gas with low concentration and large air volume | |
| CN101081361A (en) | Adsorbent bed circulating desorption distributary recovery regeneration process and device thereof | |
| CN106621697A (en) | Efficient solvent recycling device | |
| CN102205235A (en) | Method and apparatus for circulating, desorbing, shunting, recovering, and reclaiming hot gas by using adsorption bed | |
| CN108744889A (en) | It is a kind of to absorb the VOCs waste gas processing methods being combined with absorption | |
| CN109401805A (en) | A kind of renewable hydrargyrum-removing technology method of natural gas | |
| CN104096452A (en) | Oil gas recovery process adopting cooling oil pre-absorption adsorption method | |
| CN105032113A (en) | Process for capturing carbon dioxide in flue gas based on wet reclamation technology | |
| CN102302888A (en) | Organic waste gas recycling device with functions of saving energy and prolonging service life of absorbing agent | |
| CN203935758U (en) | A kind of cold oil pre-absorption Vapor Recovery Equipment with Adsorption | |
| CN113374552A (en) | Device system and method for capturing carbon dioxide by amine method and utilizing energy of analytical tower | |
| CN101745287A (en) | Waste gas reclamation treatment system for waste refrigerating electric appliances and method | |
| CN103058187A (en) | Method for producing improved food-grade liquid carbon dioxide product | |
| CN201871526U (en) | Recovery device of freon in polyurethane foam of waste refrigerator | |
| CN207102240U (en) | VOCs waste gas recovery processing units | |
| CN211537120U (en) | Organic waste gas purification device and system adopting thermal nitrogen desorption | |
| CN102029100A (en) | Dry desorption process for activated carbon adsorption of organic waste gas |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20100623 |