CN105879552A - Treatment system and treatment method for viscose drying tail gas - Google Patents
Treatment system and treatment method for viscose drying tail gas Download PDFInfo
- Publication number
- CN105879552A CN105879552A CN201610365150.1A CN201610365150A CN105879552A CN 105879552 A CN105879552 A CN 105879552A CN 201610365150 A CN201610365150 A CN 201610365150A CN 105879552 A CN105879552 A CN 105879552A
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- Prior art keywords
- tail gas
- drying
- batting
- water
- heat
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D50/00—Combinations of methods or devices for separating particles from gases or vapours
- B01D50/60—Combinations of devices covered by groups B01D46/00 and B01D47/00
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
- B01D53/04—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/32—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by electrical effects other than those provided for in group B01D61/00
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2259/00—Type of treatment
- B01D2259/80—Employing electric, magnetic, electromagnetic or wave energy, or particle radiation
- B01D2259/818—Employing electrical discharges or the generation of a plasma
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Chemical Or Physical Treatment Of Fibers (AREA)
- Nonwoven Fabrics (AREA)
Abstract
The invention relates to a treatment system and treatment method for viscose drying tail gas. The treatment system comprises a fluff filtering device for filtering fluff, a heat exchanging device for achieving heat exchanging with cold water, a demister for removing oil and water substances in the drying tail gas, a low-temperature plasma generator for decomposing pollutants in the drying tail gas, an adsorption device for containing zeolite and an exhaust fan for exhausting the drying tail gas. According to the system, the pollutants in the drying tail gas can be greatly decreased, the removal rate can reach 70% or above, and mist and odor are greatly decreased after purification treatment of the spinning drying tail gas; through the heat exchanging device, the drying tail gas can be cooled, cold water can be heated, heat energy of the drying tail gas is greatly and fully utilized, therefore, the heated cold water is used in viscose production, and usage of steam is greatly reduced.
Description
Technical field
The present invention relates to a kind of system and method, a kind of viscose rayon dries the processing system of tail gas
And processing method.
Background technology
Viscose rayon is always treated as the industry of high pollution, highly energy-consuming, high cost, and current China viscose rayon produces
Amount accounts for the 60% of world wide production, and the energy consumption and the blowdown that thus bring increase, and energy consumption and environmental issue become
One of " bottleneck " sex chromosome mosaicism that restriction China viscose glue industry is fast-developing further.In viscose rayon industry,
Dehydrator is one of highly energy-consuming equipment, is also the emphasis of energy-saving and emission-reduction, the most generally uses common warm braw
Formula dehydrator, dries 1 ton of viscose rayon and about consumes 2.8 tons of steam, and dry exhaust temperature is about 110 DEG C,
Water vapour content about 60～70%, carries the tail gas of a large amount of waste heat and directly empties and on the one hand cause huge energy
Source is wasted, and on the other hand, dries in tail gas and includes CS2、H2S, VOCs, NMHC, waste gas without
Process directs out boundary's environmental emission, and ambient atmosphere environment is caused serious environmental pollution.
Summary of the invention
It is an object of the present invention to provide a kind of viscose rayon and dry the processing system of tail gas and processing method, with gram
Take and dry tail gas present in prior art and directly discharge, the waste energy and the problem of environmental pollution.
The present invention adopts the following technical scheme that a kind of viscose rayon dries the processing system of tail gas, it is characterized in that:
Including the batting defecator for filtering batting, for carry out with cold water heat exchange heat-exchanger rig, for
Remove and dry the demister of tail gas profit thing and for decomposing the low-temperature plasma of the pollutant dried in tail gas
Body generator, for contain zeolite adsorbent equipment, for get rid of dry tail gas exhaust blower, described batting
Defecator outlet side is connected by the first pipeline with described heat-exchanger rig inlet end, going out of described heat-exchanger rig
Gas end is connected by second pipe with the inlet end of described demister, and the water inlet end of described heat-exchanger rig is passed through cold
Water, the water side of described heat-exchanger rig connects the hot water having for reclaiming the hot water after drying tail gas heating
The input of recovery system, the outlet side of described demister and described low-temperature plasma generator is by the 3rd
Pipeline connects, and the input of the outfan of described low-temperature plasma generator and described adsorbent equipment is by the
Four pipelines connect, and the outfan of described adsorbent equipment is connected by the 5th pipeline with described exhaust blower.
Preferably, described batting defecator is drum-type drainage screen.
Preferably, it is also associated with between described batting defecator and described heat-exchanger rig for drying tail gas
Carry out the water mist sprinkling device of water mist sprinkling.
Preferably, after described water mist sprinkling device spray, the waste water of generation, heat-exchanger rig dry tail gas cooling
The waste water produced in the waste water produced in the waste water of rear generation, demister and low-temperature plasma generator is equal
Flow into Waste Water Treatment.
A kind of viscose rayon dries the processing method of tail gas, it is characterized in that: comprise the following steps:
A. batting defecator is utilized to remove batting to drying tail gas；
B. drying tail gas and cold water after removing batting are passed through heat-exchanger rig and carry out heat exchange, and tail gas is dried in cooling；
C. the drying waste gas utilization demister after cooling is removed profit thing；
D. carry out the drying waste gas utilization low-temperature plasma generator after demister processes decomposing polluting
Thing；
E. the pollutant that zeolite adsorption is not decomposed after Step d processes are used；
F. exhaust blower is used to discharge the drying tail gas after step e processes.
Preferably, described a step also includes the drying tail gas after filtering batting is carried out water mist sprinkling.
The above-mentioned description to present configuration and method understands, and compared to the prior art, the present invention has the most excellent
Point: one, the pollutant dried in tail gas can be substantially reduced by the system of the present invention, and clearance is up to 70%
Above, spin mist after tail gas clean-up process is dried in refining, taste alleviates significantly.Its two, the heat-exchanger rig of the present invention
Can will dry tail gas cooling and temperature of cold water rises, significantly make full use of the heat energy drying tail gas, make temperature of cold water rises
In producing for viscose rayon afterwards, greatly reduce the use of steam.
Accompanying drawing explanation
Fig. 1 is the structural representation of the processing system of the present invention.
Detailed description of the invention
The detailed description of the invention of the present invention is described with reference to the accompanying drawings.
With reference to Fig. 1, a kind of viscose rayon dries the processing system of tail gas, including the batting mistake for filtering batting
Filter device 10, for carrying out the heat-exchanger rig 11 of heat exchange with cold water, for removing drying tail gas profit thing
Demister 12 and for decomposing the low-temperature plasma generator 13 of the pollutant dried in tail gas, for containing
Fill the adsorbent equipment 14 of zeolite, for getting rid of the exhaust blower 15 drying tail gas.Described batting defecator 10
Outlet side is connected by the first pipeline 16 with described heat-exchanger rig 11 inlet end.Going out of described heat-exchanger rig 11
Gas end is connected by second pipe 17 with the inlet end of described demister 12.The water inlet of described heat-exchanger rig 11
End 110 is passed through cold water, and the water side 111 of described heat-exchanger rig 11 connects to be had for reclaiming through drying tail gas
The hot water recovery system 18 of the hot water after heating.The outlet side of described demister 12 and described low temperature plasma
The input of generator 13 is connected by the 3rd pipeline 19, the output of described low-temperature plasma generator 13
The input with described adsorbent equipment 14 is held to be connected by the 4th pipeline 20, the output of described adsorbent equipment 14
Hold and be connected by the 5th pipeline 21 with described exhaust blower 15.
With reference to Fig. 1, described batting defecator 10 is drum-type drainage screen.Described batting defecator 10 with
The water mist sprinkling device for drying tail gas being carried out water mist sprinkling it is also associated with between described heat-exchanger rig 11
22。
With reference to Fig. 1, the waste water produced after described water mist sprinkling device 22 spray, heat-exchanger rig 11 dry tail
In the waste water produced in the waste water of generation, demister 12 after air cooling and low-temperature plasma generator 13
The waste water produced all flows into Waste Water Treatment 23.
With reference to Fig. 1, a kind of viscose rayon is dried the processing method of tail gas, be it is characterized in that: comprise the following steps:
A. batting defecator 10 is utilized to remove batting to drying tail gas；
B. drying tail gas and cold water after removing batting are passed through heat-exchanger rig 11 and carry out heat exchange, and tail is dried in cooling
Gas；
C. the drying waste gas utilization demister 12 after cooling is removed profit thing；
D. the drying waste gas utilization low-temperature plasma generator 13 after demister 12 processes is carried out point
Solve pollutant；
E. the pollutant that zeolite adsorption is not decomposed after Step d processes are used；
F. exhaust blower 15 is used to discharge the drying tail gas after step e processes.
Described a step also includes the drying tail gas after filtering batting is carried out water mist sprinkling.
After tested, the index parameter drying tail gas before and after treatment is with reference to as follows:
(table) spins refining dries tail gas clean-up treatment facility index parameter
With reference to Fig. 1, the pollutant dried in tail gas can be substantially reduced by the system of the present invention, and clearance is up to 70%
Above, spin mist after tail gas clean-up process is dried in refining, taste alleviates significantly.The heat-exchanger rig 11 of the present invention can be by
Dry tail gas cooling and temperature of cold water rises, significantly make full use of the heat energy drying tail gas, supply after making temperature of cold water rises
Viscose rayon uses in producing, and greatly reduces the use of steam.
Above are only the detailed description of the invention of the present invention, but the design concept of the present invention is not limited thereto, all
Utilize this design that the present invention carries out the change of unsubstantiality, the row invading scope all should be belonged to
For.
Claims (6)
1. viscose rayon dries a processing system for tail gas, it is characterized in that: include the batting for filtering batting
Defecator, for carrying out the heat-exchanger rig of heat exchange with cold water, drying the removing of tail gas profit thing for removing
Day with fog and for decomposing the low-temperature plasma generator of the pollutant dried in tail gas, for containing zeolite
Adsorbent equipment, for get rid of dry tail gas exhaust blower, described batting defecator outlet side is changed with described
Thermal inlet end is connected by the first pipeline, the outlet side of described heat-exchanger rig and the air inlet of described demister
End is connected by second pipe, and the water inlet end of described heat-exchanger rig is passed through cold water, the water outlet of described heat-exchanger rig
End connects the hot water recovery system having for reclaiming the hot water after drying tail gas heating, described demister
Outlet side is connected by the 3rd pipeline with the input of described low-temperature plasma generator, described low temperature etc. from
The outfan of daughter generator is connected by the 4th pipeline with the input of described adsorbent equipment, described absorption dress
The outfan put is connected by the 5th pipeline with described exhaust blower.
2. dry the processing system of tail gas according to a kind of viscose rayon described in claim 1, it is characterized in that: institute
Stating batting defecator is drum-type drainage screen.
3. dry the processing system of tail gas according to a kind of viscose rayon described in claim 1, it is characterized in that: institute
State and be also associated with between batting defecator and described heat-exchanger rig for drying tail gas is carried out water mist sprinkling
Water mist sprinkling device.
4. dry the processing system of tail gas according to a kind of viscose rayon described in claim 3, it is characterized in that: institute
The waste water that produces after stating water mist sprinkling device spray, heat-exchanger rig is dried tail gas cooling after produce waste water,
The waste water produced in the waste water produced in demister and low-temperature plasma generator all flows into waste water and processes system
System.
5. viscose rayon dries a processing method for tail gas, it is characterized in that: comprise the following steps:
A. batting defecator is utilized to remove batting to drying tail gas；
B. drying tail gas and cold water after removing batting are passed through heat-exchanger rig and carry out heat exchange, and tail gas is dried in cooling；
C. the drying waste gas utilization demister after cooling is removed profit thing；
D. carry out the drying waste gas utilization low-temperature plasma generator after demister processes decomposing polluting
Thing；
E. the pollutant that zeolite adsorption is not decomposed after Step d processes are used；
F. exhaust blower is used to discharge the drying tail gas after step e processes.
6. dry the processing method of tail gas according to a kind of viscose rayon described in claim 5, it is characterized in that: institute
State a step also to include the drying tail gas after filtering batting is carried out water mist sprinkling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610365150.1A CN105879552A (en) | 2016-05-27 | 2016-05-27 | Treatment system and treatment method for viscose drying tail gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610365150.1A CN105879552A (en) | 2016-05-27 | 2016-05-27 | Treatment system and treatment method for viscose drying tail gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105879552A true CN105879552A (en) | 2016-08-24 |
Family
ID=56708864
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610365150.1A Pending CN105879552A (en) | 2016-05-27 | 2016-05-27 | Treatment system and treatment method for viscose drying tail gas |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103721524A (en) * | 2014-01-23 | 2014-04-16 | 石家庄科英化工技术有限公司 | Recycling treatment method of CS2 and H2S in waste gas in production of viscose fiber |
| CN104028094A (en) * | 2014-06-10 | 2014-09-10 | 江苏申江环境科技有限公司 | Viscose fiber production waste gas recovery system |
| CN105251232A (en) * | 2015-11-23 | 2016-01-20 | 山东丰特环保科技有限公司 | Equipment and process for condensing and collecting steam and waste gas at tail end of multi-grade flash evaporation device |
| CN205073834U (en) * | 2015-10-12 | 2016-03-09 | 杭州奥通环保科技有限公司 | Viscose fiber drying -machine exhaust treatment device |
| CN205760394U (en) * | 2016-05-27 | 2016-12-07 | 赛得利（福建）纤维有限公司 | A kind of viscose rayon dries the processing system of tail gas |
-
2016
- 2016-05-27 CN CN201610365150.1A patent/CN105879552A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103721524A (en) * | 2014-01-23 | 2014-04-16 | 石家庄科英化工技术有限公司 | Recycling treatment method of CS2 and H2S in waste gas in production of viscose fiber |
| CN104028094A (en) * | 2014-06-10 | 2014-09-10 | 江苏申江环境科技有限公司 | Viscose fiber production waste gas recovery system |
| CN205073834U (en) * | 2015-10-12 | 2016-03-09 | 杭州奥通环保科技有限公司 | Viscose fiber drying -machine exhaust treatment device |
| CN105251232A (en) * | 2015-11-23 | 2016-01-20 | 山东丰特环保科技有限公司 | Equipment and process for condensing and collecting steam and waste gas at tail end of multi-grade flash evaporation device |
| CN205760394U (en) * | 2016-05-27 | 2016-12-07 | 赛得利（福建）纤维有限公司 | A kind of viscose rayon dries the processing system of tail gas |
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Application publication date: 20160824 |