CN203315970U - Device for recovering organic solvents from waste gas - Google Patents
Device for recovering organic solvents from waste gas Download PDFInfo
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- CN203315970U CN203315970U CN2013202715654U CN201320271565U CN203315970U CN 203315970 U CN203315970 U CN 203315970U CN 2013202715654 U CN2013202715654 U CN 2013202715654U CN 201320271565 U CN201320271565 U CN 201320271565U CN 203315970 U CN203315970 U CN 203315970U
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Abstract
The utility model relates to a device for recovering organic solvents from waste gas. The device comprises an adsorption bed, an adsorption bed regeneration unit, an adsorption bed cooling unit, a solvent cooling and recovery unit, a treatment fan, a waste gas cooler and a series of valves, wherein the top of the adsorption bed is connected with the atmosphere via an exhaust valve and the treatment fan, and the bottom of the adsorption bed is connected with a waste gas pipeline via an intake valve, a circulated water cooler and a chilled water cooler; an adsorption material and a temperature measurer are installed in the adsorption bed, a nitrogen inlet or other inert gas inlets are formed in the lower part of the adsorption bed, an outlet connected to the solvent cooling and recovery unit is formed in the upper part of the adsorption bed, the solvent cooling and recovery unit comprises multi-stage cooling heat exchangers which are connected in series, and the adsorption bed regeneration unit and the adsorption bed cooling unit are communicated with the upper part and the lower part of the adsorption bed via pipelines respectively. The device disclosed by the utility model is capable of recovering the organic solvents from waste gas containing a high-boiling-point organic solvent and a low-boiling-point organic solvent simultaneously.
Description
Technical field
The utility model relates to exhaust gas treatment technology, specifically from waste gas, reclaims the device of organic solvent.
Background technology
Can produce various organic exhaust gas in industrial production, along with resource is increasingly exhausted, people more and more tend to utilize the method that reclaims organic solvent from waste gas to process the waste gas containing organic solvent.
According to current VOCs treatment technical merit, if only contain high boiling organic solvent in waste gas, for example, only contain 1-METHYLPYRROLIDONE or dimethylacetylamide in waste gas or contain 1-METHYLPYRROLIDONE and dimethylacetylamide simultaneously, usually utilizing the concentrated freezing method that adds of molecular sieve runner to reclaim the high boiling organic solvent in waste gas.If only contain low boiling in waste gas, usually utilize activated carbon fiber absorption to add steam direct heating regeneration and reclaim the organic solvent in waste gas.
In actual production process, usually contain high boiling organic solvent and low boiling point organic solvent in waste gas simultaneously, for example, contain high boiling organic solvent dimethylformamide and low boiling point organic solvent toluene, ethyl acetate and butanone in the waste gas that, the artificial leather process industry produces simultaneously.For the waste gas that contains high boiling organic solvent and low boiling point organic solvent simultaneously, there is no so far the organic waste gas treatment method very ripe, that energy-conserving and environment-protective are reliably arranged simultaneously.
Summary of the invention
The technical problems to be solved in the utility model is to provide in a kind of waste gas that can simultaneously from contain high boiling organic solvent and low boiling point organic solvent, reclaim organic solvent and reclaims the organic solvent device.
Above-mentioned purpose of the present utility model is to be achieved by the following technical programs: reclaim the device of organic solvent from waste gas, comprise adsorbent bed, regeneration of adsorbent beds unit, adsorbent bed cooling unit, the cooling recovery unit of solvent, process blower fan, gaseous effluent and a series of valve.
Top at adsorbent bed is connected with atmosphere by the valve of giving vent to anger, processing blower fan, and the bottom of adsorbent bed is connected with exhaust piping by air intake valve, water recirculator, chilled water cooler, and water recirculator, chilled water cooler form gaseous effluent.
Sorbing material, temperature meter are housed in adsorbent bed, and sorbing material is molecular sieve, and molecular sieve is graininess or cellular.
The bottom of adsorbent bed is provided with nitrogen or other inert gas entrances, and top is provided with towards the outlet of the cooling recovery unit of solvent, and the cooling recovery unit of solvent comprises multistage cooling heat exchanger series connection.
The regeneration of adsorbent beds unit comprises regeneration blower fan, heater, and the adsorbent bed cooling unit comprises several water recirculators, cooling blower, and regeneration of adsorbent beds unit, adsorbent bed cooling unit are respectively by pipeline communication adsorbent bed top and the bottom.
The utility model can reclaim organic solvent simultaneously from contain high boiling organic solvent and low boiling point organic solvent.
Below in conjunction with accompanying drawing, the utility model is further described.
The accompanying drawing explanation
Fig. 1 is a kind of structural representation of the present utility model.
The specific embodiment
The utility model is to reclaim the device of organic solvent from waste gas, as shown in the figure.
Comprise adsorbent bed 1, regeneration of adsorbent beds unit 2, adsorbent bed cooling unit 3, the cooling recovery unit 4 of solvent, process blower fan 5, gaseous effluent 6 and a series of valve F1, F2, F3, F4, F5, F6, F7, F8.
Top at adsorbent bed 1 is connected with atmosphere by the valve of giving vent to anger, processing blower fan 5.The bottom of adsorbent bed 1 is connected with exhaust piping by air intake valve, recirculated water aerial cooler 61, chilled water aerial cooler 62.
The bottom of adsorbent bed 1 is provided with nitrogen or other inert gas entrances 7, and top is provided with towards the outlet of the cooling recovery unit 4 of solvent, and the cooling recovery unit 4 of solvent comprises multistage cooling heat exchanger 41 series connection, and the present embodiment adopts three grades;
Sorbing material, temperature meter are housed in adsorbent bed 1, and sorbing material is molecular sieve, and molecular sieve is graininess or cellular.
Regeneration of adsorbent beds unit 2 comprises regeneration blower fan 21, heater 22, and adsorbent bed cooling unit 3 comprises several water recirculators 31, cooling blower 32, and regeneration of adsorbent beds unit 2, adsorbent bed cooling unit 3 are respectively by pipeline communication adsorbent bed 1 top and the bottom.
When adsorbent bed 1 in adsorption operations the time, F1, F2 open, the waste gas that contains solvent is under the effect of processing blower fan 5, first process recirculated water aerial cooler 61 is cooling, then process chilled water aerial cooler 62 is cooling enters adsorbent bed 1 by F2, organic solvent is adsorbed material absorption, through valve F1, processing blower fan 5, enters atmosphere.
After adsorbent bed 1 absorption certain hour, adsorbent bed 1 enters regenerative operation.
Regenerative operation: valve F1, F2 close; Valve F7, F8 open, supplement nitrogen or other inert gas in adsorbent bed 1 simultaneously, utilize nitrogen or other inert gas by the air displacement in adsorbent bed 1 out, in order to guarantee that adsorbent bed 1 regenerative operation potential safety hazard can not occur because organic solvent concentration is too high.
After adsorbent bed 1 inflated with nitrogen or other inert gas have operated, valve F7, F8 close, and valve F3, F4 start, and regeneration blower fan 21 is started working with regenerative heater 22.
Be brought to the cooling recovery unit 4 of solvent containing the gas of high levels of organic solvents in adsorbent bed 1 cooling, in order to save the energy, cooling heat exchanger 41 can be that a plurality of series connection are used, the chilling temperature difference of each cooling heat exchanger 41, in figure, the temperature of one-level cooling heat exchanger cooling medium is the highest, secondary cooling heat exchanger coolant temperature is lower than the temperature of one-level cooling heat exchanger cooling medium, and three grades of cooling heat exchanger coolant temperatures are lower than the temperature of secondary cooling heat exchanger cooling medium, difference according to solvent species in waste gas, the quantity of cooler can be more than three.May contain a small amount of organic solvent the waste gas of discharging from the cooling recovery unit 4 of solvent, these cooled waste gas are delivered in the adsorbent bed 1 in adsorbed state and are further carried out adsorption treatment.
After the solvent recovery operation maintains certain hour, adsorbent bed 1 enters cooling down operation, and now, regeneration blower fan 21, regenerative heater 22 and valve F3, F4, F7, F8 quit work.Valve F5, F6 open, and cooling blower 32 starts, and utilizes the cooling sorbing material of water recirculator 31.
After sorbing material is cooled to certain temperature, adsorbent bed 1 cooling down operation is complete, and adsorbent bed 1 can restart to carry out adsorption operations.
In order to guarantee carrying out continuously of exhaust-gas treatment, adsorbent bed 1 can be a plurality of in parallel uses, and when part adsorbent bed 1 wherein carries out regenerative operation or cooling down operation, part adsorbent bed 1 is carrying out adsorption operations.For a plurality of adsorbent beds 1 of energy-saving investment can share regeneration of adsorbent beds unit, a unit 2, adsorbent bed cooling unit 3, the cooling recovery unit 4 of solvent.
Above-described embodiment is preferably embodiment of the utility model; but embodiment of the present utility model is not restricted to the described embodiments; other any do not deviate from change, the modification done under Spirit Essence of the present utility model and principle, substitutes, combination, simplify; all should be equivalent substitute mode, within being included in protection domain of the present utility model.
Claims (3)
1. reclaim the device of organic solvent from waste gas, it is characterized in that: comprise adsorbent bed (1), regeneration of adsorbent beds unit (2), adsorbent bed cooling unit (3), the cooling recovery unit of solvent (4), process blower fan (5), gaseous effluent (6) and a series of valve; Top at adsorbent bed (1) is connected with atmosphere by the valve of giving vent to anger, processing blower fan (5), the bottom of adsorbent bed (1) is connected with exhaust piping by air intake valve, gaseous effluent (6), sorbing material is housed in adsorbent bed, the bottom of adsorbent bed (1) is provided with inert gas entrance (7), and top is provided with towards the outlet of the cooling recovery unit of solvent (4); Regeneration of adsorbent beds unit (2), adsorbent bed cooling unit (3) are respectively by pipeline communication adsorbent bed (1) top and the bottom.
2. device according to claim 1, it is characterized in that: sorbing material is molecular sieve, molecular sieve is graininess or cellular.
3. device according to claim 1, it is characterized in that: adsorbent bed is provided with temperature meter in (1), regeneration of adsorbent beds unit (2) comprises regeneration blower fan (21), heater (22), adsorbent bed cooling unit (3) comprises several water recirculators (31), cooling blower (32), gaseous effluent (6) comprises recirculated water aerial cooler (61), chilled water aerial cooler (62), and the cooling recovery unit of solvent (4) comprises multistage cooling heat exchanger (41) series connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202715654U CN203315970U (en) | 2013-05-19 | 2013-05-19 | Device for recovering organic solvents from waste gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202715654U CN203315970U (en) | 2013-05-19 | 2013-05-19 | Device for recovering organic solvents from waste gas |
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| Publication Number | Publication Date |
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| CN203315970U true CN203315970U (en) | 2013-12-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2013202715654U Expired - Fee Related CN203315970U (en) | 2013-05-19 | 2013-05-19 | Device for recovering organic solvents from waste gas |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104941381A (en) * | 2015-04-30 | 2015-09-30 | 马军 | Method and device for recycling organic solvent in high-temperature inert gas |
| CN105214442A (en) * | 2015-10-26 | 2016-01-06 | 马军 | A kind of new and effective recovery system for organic solvent |
| CN108744852A (en) * | 2018-06-25 | 2018-11-06 | 上海化工研究院有限公司 | A kind of organic waste gas treatment system |
-
2013
- 2013-05-19 CN CN2013202715654U patent/CN203315970U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104941381A (en) * | 2015-04-30 | 2015-09-30 | 马军 | Method and device for recycling organic solvent in high-temperature inert gas |
| CN105214442A (en) * | 2015-10-26 | 2016-01-06 | 马军 | A kind of new and effective recovery system for organic solvent |
| CN105214442B (en) * | 2015-10-26 | 2018-01-12 | 马军 | A kind of efficient recovery system for organic solvent |
| CN108744852A (en) * | 2018-06-25 | 2018-11-06 | 上海化工研究院有限公司 | A kind of organic waste gas treatment system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131204 |