CN203886386U - Label cloth coating solvent recovery device - Google Patents
Label cloth coating solvent recovery device Download PDFInfo
- Publication number
- CN203886386U CN203886386U CN201420176278.XU CN201420176278U CN203886386U CN 203886386 U CN203886386 U CN 203886386U CN 201420176278 U CN201420176278 U CN 201420176278U CN 203886386 U CN203886386 U CN 203886386U
- Authority
- CN
- China
- Prior art keywords
- absorption tower
- condenser
- level
- solvent recovery
- coating solvent
- 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.)
- Expired - Lifetime
Links
- 239000002904 solvent Substances 0.000 title claims abstract description 42
- 239000011248 coating agent Substances 0.000 title claims abstract description 29
- 238000000576 coating method Methods 0.000 title claims abstract description 29
- 238000011084 recovery Methods 0.000 title claims abstract description 24
- 239000004744 fabric Substances 0.000 title claims abstract description 11
- 238000010521 absorption reaction Methods 0.000 claims abstract description 84
- 239000007788 liquid Substances 0.000 claims abstract description 43
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 34
- 239000002912 waste gas Substances 0.000 claims abstract description 23
- 239000007789 gas Substances 0.000 claims abstract description 16
- 239000012046 mixed solvent Substances 0.000 claims abstract description 10
- 238000009833 condensation Methods 0.000 claims description 11
- 230000005494 condensation Effects 0.000 claims description 11
- 238000012856 packing Methods 0.000 claims description 11
- 230000008676 import Effects 0.000 claims description 9
- 239000007864 aqueous solution Substances 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 6
- 238000003860 storage Methods 0.000 claims description 6
- 229910001220 stainless steel Inorganic materials 0.000 claims description 5
- 239000010935 stainless steel Substances 0.000 claims description 5
- 239000007921 spray Substances 0.000 claims description 4
- 239000011521 glass Substances 0.000 claims description 3
- 238000000926 separation method Methods 0.000 claims description 2
- 238000003912 environmental pollution Methods 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 230000003139 buffering effect Effects 0.000 abstract 1
- 238000001035 drying Methods 0.000 abstract 1
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 9
- 230000002745 absorbent Effects 0.000 description 5
- 239000002250 absorbent Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000011261 inert gas Substances 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 229910001628 calcium chloride Inorganic materials 0.000 description 1
- 239000001110 calcium chloride Substances 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000001066 destructive effect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 238000013517 stratification Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Treating Waste Gases (AREA)
Abstract
The utility model relates to waste gas treatment, and particularly relates to a label cloth coating solvent recovery device. The label cloth coating solvent recovery device comprises a buffer tank, a condenser, a drier, an absorption tower and an oil-water separator, wherein the buffer tank is used for buffering the pressure of waste gas with a coating solvent after a label cloth is coated; the condenser is connected with the buffer tank and used for condensing a mixed gas with pressure released; the drier is connected with the condenser and used for drying a condensed mixed solvent; the absorption tower is connected with the condenser and used for absorbing a part of uncondensed waste gas; the oil-water separator is connected with the liquid outlet of the absorption tower and the liquid inlet of the drier. The label cloth coating solvent recovery device disclosed by the utility model can prevent the waste gas from being directly emitted before being condensed, thereby preventing the halfway solvent recovery and the environmental pollution; the label cloth coating solvent recovery device assembly is capable of sufficiently recovering the solvent and reducing the production cost.
Description
Technical field
The utility model relates to exhaust-gas treatment, relates in particular to trademark belt coating solvent recovery unit.
Background technology
The coating of fabrics be take solvent-borne type raw material as main, in raw material as DMF, ethyl acetate equal solvent are discharged with gas form in baking oven, because the organic solvents such as DMF, ethyl acetate have very large harm to human body and environment, the entail dangers to mankind's descendants and ecological environment.In addition taking cost into account, coating solvent is a considerable wealth, and directly discharge not only causes environmental pollution, is also the waste of the resources of production, for preventing public hazards, reduces costs, and solvent recovery is imperative.
CN102585283B (2014-2-12) discloses a kind of method for recovering solvent from oligomer and device, yet the method is unsuitable for trademark belt coating solvent recovery.
Utility model content
Technical purpose of the present utility model is to provide a kind of trademark belt coating solvent recovery unit that can reclaim Resources and protection environment.
Utility model
Technical purpose of the present utility model is achieved by the following technical programs:
A trademark belt coating solvent recovery unit, comprising:
For cushioning the surge tank of the exhaust gas pressure of the coating solvent after fabrics coating;
And be connected with surge tank, for by the condenser of the Mixed Gas Condensation after earth pressure release;
And be connected with described condenser, for the mixed solvent that condensation is gone out, carry out dry drier;
And be connected with described condenser, the absorption tower for the uncooled part waste gas going out is absorbed;
And the oil water separator being connected with drier inlet with described absorption tower liquid outlet.
The utility model device adopts the combination of surge tank, condenser, drier and oil water separator, can prevent the uncooled just directly discharge of waste gas, thereby prevent that solvent recovery is thorough, environmental pollution; By device of the present utility model, combine, can fully reclaim solvent, reduce production costs.
As preferably, described absorption tower comprises first order absorption tower, absorption tower, the second level and the third level absorption tower being connected successively; Between absorption tower, the described second level and third level absorption tower, be provided with for circulating and absorb to increase the second level circulating pump of concentration; Described first order absorption tower liquid outlet is connected with described oil water separator; Between described first order absorption tower and absorption tower, the second level, be provided with first order delivery pump; Between described third level absorption tower and first order absorption tower, be provided with for circulation being absorbed to the third level delivery pump that is delivered to first order absorption tower with the mixed liquor after increase concentration.
The utility model adopts three grades of absorption towers, and the one, can fully absorb waste gas, make solvent can fully be pooled to the liquid collecting zone of bottom, absorption tower; The 2nd, enrichment can make to circulate between absorption tower, the second level and third level absorption tower, then using the mixed liquor after circulation enrichment as absorbent, squeeze into first order absorption tower and directly absorb fresh mix waste gas, to improve the concentration of mixed solvent, be more conducive to solvent recovery.
As preferably, described condenser comprises first order condenser and the second level condenser being connected in series successively, the liquid outlet of described first order condenser and second level condenser is connected with described drier respectively, and the gas outlet of described second level condenser is connected with described the first absorption tower air inlet.
Adopt condensed in two stages device can make the abundant condensation of waste gas, solvent to be recycled and all the other impurity are carried out to effective initial gross separation.
As preferably, inside, described first order absorption tower is disposed with demister, spray thrower, packing layer and liquid collecting zone from top to bottom; Described packing layer is Raschig ring structure, for increasing gas vent resistance; Top, first order absorption tower is also respectively arranged with the import of enrichment liquid, pressurized water import and mix waste gas outlet; Bottom, first order absorption tower sidewall is provided with air inlet and liquid outlet, and demister communicates with pressurized water import.
Adopt the absorption tower of the utility model structural design, can make uncooled waste gas first from bottom, first order absorption tower, enter, from top to bottom through liquid collecting zone, packing layer, demister, uncooled waste gas fully contacts in dumped packing layer with pressurized water, the part that becomes liquid after fully absorbing flows into liquid collecting zone, bottom, absorption tower, unabsorbed from absorption tower top exit enters two-stage absorption tower, the liquid of liquid collecting zone is delivered to oil water separator with first order delivery pump.
As preferably, described demister is screen net structure.
Adopt screen net structure can destroy the froth bed producing in demist process.
As preferably, described oil water separator is separated pyramidal structure for the benefit of, and described oil water separator outer setting is useful on the glass tube of observing layering situation.
As preferably, on described drier sidewall, be provided with for setting for exceeding the overfall that the solvent of liquid level overflows automatically.
Accompanying drawing explanation
Fig. 1 is the device schematic diagram of the utility model gas recovery method;
Fig. 2 is the utility model absorption tower device schematic diagram;
In figure: 1-mix waste gas, 2-surge tank, 3-first order condenser, 4-second level condenser, 5-drier; 51-overfall;
6-first order absorption tower;
61-demister; 62-spray thrower; 63-packing layer; 64-liquid collecting zone;
Absorption tower, the 7-second level, 8-third level absorption tower, 9-oil water separator, 10-DMF aqueous solution storage tank, 11-first order delivery pump, 12-second level circulating pump, 13-third level delivery pump, 14-separate pump, 15-pressurized water, 16-inert gas, mixed solvent after 17-reclaims, 18-calcium chloride solution.
The specific embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
As shown in Figure 1 and Figure 2, trademark belt coating solvent recovery unit comprises: for cushioning the surge tank 2 of the exhaust gas pressure of the coating solvent after fabrics coating; And that be connected with surge tank 2, for by the condenser of the Mixed Gas Condensation after earth pressure release; And be connected with condenser, for the mixed solvent that condensation is gone out, carry out dry drier 5; And be connected with condenser, the absorption tower for the uncooled part waste gas going out is absorbed; And the oil water separator 9 being connected with drier 5 inlets with absorption tower liquid outlet.On drier 5 sidewalls, be provided with for setting for exceeding the overfall 51 that the solvent of liquid level overflows automatically.
In order fully to reclaim solvent, absorption tower comprises first order absorption tower 6, absorption tower, the second level 7 and the third level absorption tower 8 being connected successively; Between absorption tower, the second level 7 and third level absorption tower 8, be provided with for circulating and absorb to increase the second level pump 12 of concentration; First order absorption tower 6 liquid outlets are connected with oil water separator 9.
In order to improve condensation effect, condenser comprises first order condenser 3 and the second level condenser 4 being connected in series successively, the liquid outlet of first order condenser 3 and second level condenser 4 is connected with drier 5 respectively, and the gas outlet of second level condenser 4 is connected with first order absorption tower 6 air inlets.
In order to improve assimilation effect, 6 inside, first order absorption tower are disposed with demister 61, spray thrower 62, packing layer 63 and liquid collecting zone 64 from top to bottom; Packing layer 63 is Raschig ring structure, for increasing gas vent resistance; The first absorption tower 6 air inlets are arranged on the first absorption tower 6 bottom sidewalls.Demister 61 can be arranged for ease of the screen net structure defoaming.6 tops, first order absorption tower are also respectively arranged with enrichment liquid import 65, pressurized water import 66 and mix waste gas outlet 67; First order absorption tower 6 bottom sidewalls are provided with air inlet 68 and liquid outlet 69, and demister 61 communicates with pressurized water import 66.
The structure of oil water separator 9 can be for the benefit of separated pyramidal structure, and oil water separator 9 outer setting are useful on the glass tube of observing layering situation.Oil water separator 9 liquid outlets are connected with separate pump 14, separate pump 14 liquid outlets are connected with and are connected to respectively drier 5, first order absorption pump 6 and for storing three pipelines of the storage tank 10 that reclaims solvent, are connected on the pipeline of first order absorption pump 6 and are provided with the stainless steel ball valve as separated upper strata oily liquids; Be connected to and on the pipeline of storage tank 10, be provided with the stainless steel ball valve as the separated DMF of the lower floor aqueous solution.
By the waste gas of discharging from baking oven after fabrics coating 1, through surge tank 2 compensator or trimmer pressures; By the mist of earth pressure release, through first order condensation 3 and 4 condensations of second level condenser of two series connection, the part mixed solvent that condensation goes out enters drier 5; Uncooled part enters three grades of absorption towers; Top, absorption tower is absorbent inlet port, absorbent is pressurized water 15, uncooled waste gas 1 first enters from 6 bottoms, first order absorption tower, from top to bottom through liquid collecting zone 61, packing layer 62, demister 63, uncooled waste gas 1 fully contacts in dumped packing layer 62 with pressurized water 15, the part that becomes liquid after fully absorbing flows into liquid collecting zone 64, bottom, absorption tower, unabsorbed from absorption tower top exit enters two-stage absorption tower, the liquid of liquid collecting zone 64 is delivered to oil water separator 9 with one-level delivery pump 11.Demister 63 adopts screen net structure, the froth bed producing in destructive process.
The waste gas 1 entering from 7 tops, absorption tower, the second level first absorbs through a small amount of pressurized water 15, the mixed liquor of bottom is squeezed into 8 tops, three grades of absorption towers as the absorbent on third level absorption tower with second level circulating pump 12, the waste gas 1 entering from 8 tops, third level absorption tower is after the mixed liquor of two-level absorption tower 7 bottoms absorbs, with third level delivery pump 13, the mixed liquor of 8 bottoms, third level absorption tower is squeezed into 7 tops, absorption tower, the second level, to two towers through row circulation enrichment, after reaching finite concentration, with third level delivery pump 13, squeeze into 6 tops, first order absorption tower, as absorbent, directly absorb fresh mix waste gas 1, to improve the concentration of mixed solvent, inert gas 16 is 8 top emptying from third level absorption tower.
From 6 bottoms, first order absorption tower mixed liquor out, enter oil water separator 9, the ethyl acetate light specific gravity molten with shipwreck, aqueous solution meeting layering with DMF, after stratification, separate pump 14 suction driers 5 for the solvent of upper strata, in drier 5, drop into anhydrous calcium chloride and absorb after moisture, the mixed solvent 17 on upper strata reclaims as joining glue use, and the calcium chloride water 18 of lower floor is discharged and sent into sewage plant processing; The top of drier arranges the overfall that reclaims mixed solvent 17, and after the solvent after to be dried reaches certain liquid level, automatic overflow goes out.
At two pipelines of separate pump 14 punishment, two stainless steel ball valves are set, be used as separated upper strata oily liquids and the DMF of the lower floor aqueous solution.
From oil water separator lower floor DMF concentration of aqueous solution out reaches certain requirement, squeezing into storage tank 10 concentrates sale to go rectifying to reclaim; If the low first grade absorption tower 6 of squeezing into of concentration continues enrichment until concentration reaches requirement.
This specific embodiment is only to explanation of the present utility model; it is not to restriction of the present utility model; those skilled in the art can make to the present embodiment the modification that there is no creative contribution as required after reading this description, but as long as within the scope of claim of the present utility model, are all subject to the protection of Patent Law.
Claims (8)
1. a trademark belt coating solvent recovery unit, is characterized in that comprising:
For cushioning the surge tank (2) of the exhaust gas pressure of the coating solvent after fabrics coating;
And be connected with surge tank (2), for by the condenser of the Mixed Gas Condensation after earth pressure release;
And be connected with described condenser, for the mixed solvent that condensation is gone out, carry out dry drier (5);
And be connected with described condenser, the absorption tower for the uncooled part waste gas going out is absorbed;
And the oil water separator (9) being connected with drier (5) inlet with described absorption tower liquid outlet.
2. a kind of trademark belt coating solvent recovery unit according to claim 1, is characterized in that: described absorption tower comprises first order absorption tower (6), absorption tower, the second level (7) and third level absorption tower (8) that are connected successively; Between absorption tower, the described second level (7) and third level absorption tower (8), be provided with for circulating and absorb to increase the second level pump (12) of concentration;
Described first order absorption tower (6) liquid outlet is connected with described oil water separator (9).
3. a kind of trademark belt coating solvent recovery unit according to claim 2, it is characterized in that: described condenser comprises first order condenser (3) and the second level condenser (4) being connected in series successively, the liquid outlet of described first order condenser (3) and second level condenser (4) is connected with described drier (5) respectively, and the gas outlet of described second level condenser (4) is connected with described first order absorption tower (6) air inlet.
4. according to a kind of trademark belt coating solvent recovery unit described in claim 2 or 3, it is characterized in that: inside, described first order absorption tower (6) is disposed with demister (61), spray thrower (62), packing layer (63) and liquid collecting zone (64) from top to bottom; Described packing layer (63) is Raschig ring structure, for increasing gas vent resistance; 6 tops, first order absorption tower are also respectively arranged with enrichment liquid import (65), pressurized water import (66) and mix waste gas outlet (67); Bottom, first order absorption tower (6) sidewall is provided with air inlet (68) and liquid outlet (69), and demister (61) communicates with pressurized water import (66).
5. a kind of trademark belt coating solvent recovery unit according to claim 4, is characterized in that: described oil water separator (9) is the pyramidal structure of separation for the benefit of, and described oil water separator (9) outer setting is useful on the glass tube of observing layering situation.
6. a kind of trademark belt coating solvent recovery unit according to claim 4, is characterized in that: on described drier (5) sidewall, be provided with for setting for exceeding the overfall (51) that the solvent of liquid level overflows automatically.
7. according to a kind of trademark belt coating solvent recovery unit described in claim 5 or 6, it is characterized in that: described demister (62) is screen net structure.
8. a kind of trademark belt coating solvent recovery unit according to claim 7, it is characterized in that: described oil water separator (9) liquid outlet is connected with separate pump (14), described separate pump (14) liquid outlet is connected with and is connected to respectively described drier (5), first order absorption pump (6) and for storing three pipelines of the storage tank (10) that reclaims solvent, is connected on the pipeline of described first order absorption pump (6) and is provided with the stainless steel ball valve as separated upper strata oily liquids; Be connected to and on the pipeline of described storage tank (10), be provided with the stainless steel ball valve as the separated DMF of the lower floor aqueous solution.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420176278.XU CN203886386U (en) | 2014-04-14 | 2014-04-14 | Label cloth coating solvent recovery device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420176278.XU CN203886386U (en) | 2014-04-14 | 2014-04-14 | Label cloth coating solvent recovery device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203886386U true CN203886386U (en) | 2014-10-22 |
Family
ID=51712837
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420176278.XU Expired - Lifetime CN203886386U (en) | 2014-04-14 | 2014-04-14 | Label cloth coating solvent recovery device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203886386U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103920359A (en) * | 2014-04-14 | 2014-07-16 | 湖州南浔菱创纺织有限公司 | Recycling device and recycling method for label coating solvent |
| CN107433110A (en) * | 2017-09-04 | 2017-12-05 | 江苏泰利达新材料股份有限公司 | Waste gas recovery technology in reactor in a kind of CMC productions |
-
2014
- 2014-04-14 CN CN201420176278.XU patent/CN203886386U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103920359A (en) * | 2014-04-14 | 2014-07-16 | 湖州南浔菱创纺织有限公司 | Recycling device and recycling method for label coating solvent |
| CN107433110A (en) * | 2017-09-04 | 2017-12-05 | 江苏泰利达新材料股份有限公司 | Waste gas recovery technology in reactor in a kind of CMC productions |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20150918 Address after: 313000, Zhejiang, Nanxun province Huzhou Ling Hu Town Phoenix Bridge, Huzhou Xinli trademark belt Co., Ltd. Patentee after: HUZHOU SINY LABEL MATERIAL Co.,Ltd. Address before: 313000, 6 towns, 5 new towns, Ling Hu Town, Nanxun District, Zhejiang City, Huzhou province (Huzhou Xinli trademark belt Co., Ltd.) Patentee before: HUZHOU NANXUN LINGCHUANG TEXTILE Co.,Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20141022 |
|
| CX01 | Expiry of patent term |