CN104028094A - Viscose fiber production waste gas recovery system - Google Patents
Viscose fiber production waste gas recovery system Download PDFInfo
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- CN104028094A CN104028094A CN201410260538.6A CN201410260538A CN104028094A CN 104028094 A CN104028094 A CN 104028094A CN 201410260538 A CN201410260538 A CN 201410260538A CN 104028094 A CN104028094 A CN 104028094A
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- blower fan
- dirty gas
- charcoal absorption
- gas
- supervisor
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- Treating Waste Gases (AREA)
- Gas Separation By Absorption (AREA)
Abstract
The invention discloses a viscose fiber production waste gas recovery system which is safe to use. The viscose fiber production waste gas recovery system comprises an acid mist removal tank, an alkaline wash tank, an alkaline wash fan, a Na2S and NaHS storage tank, a bad air scrubbing tower, a bad air fan and an activated carbon adsorption tank, wherein the alkaline wash tank is arranged at the rear end of the acid mist removal tank and is connected with the acid mist removal tank, the alkaline wash fan and the Na2S and NaHS storage tank are connected with the alkaline wash tank, the bad air scrubbing tower is connected with the alkaline wash fan, the bad air fan is connected with the bad air scrubbing tower, and the activated carbon adsorption tank is connected with the bad air fan.
Description
Technical field
The present invention relates to a kind of equipment for treating industrial waste gas, relate in particular to a kind of viscose rayon process gas recovery system.
Background technology
Viscose rayon can produce the waste gas that contains in a large number H2S and CS2 in process of production, these waste gas mainly overflow in following process point, that is: xanthating machine exhaust, the waste gas of spinning-drawing machine, drawing-off, cutting machine, two baths are through the condensed tail gas of condensing unit, fine hair moulding waste gas, scouring machine one washes waste gas and acid station is degassed and the waste gas of each bath.Due to the feature of production process of viscose fiber, the waste gas composition of each spill point is not identical yet: waste gas H2S and CS2 concentration from spinning-drawing machine are all higher, the waste gas H2S concentration degassed from acid station is the highest, and CS2 concentration is generally lower, waste gas H2S concentration from other bath of acid station generally also has finite concentration, have 16g/m3 left and right from the waste gas CS2 concentration of other process point, and H2S concentration is not high.Above-mentioned waste gas directly discharge does not reach national discharge standard, can be to atmosphere and environment.The structure of existing viscose rayon process gas recovery system comprises: alkali cleaning blower fan, the alkaline bath being connected with described alkali cleaning blower fan, the Na being connected with described alkaline bath
2s, NaHS storage tank and dirty gas water scrubber, the sprinkling separator being connected with described dirty gas water scrubber, the dirty gas blower fan being connected with described sprinkling separator, the charcoal absorption groove being connected with described dirty gas blower fan, the evaporimeter being connected with described charcoal absorption groove, the first condenser being connected with described evaporimeter, the gas-liquid separator and the second condenser that are connected with described the first condenser, the specific gravity separator and the safety can that are connected with described gas-liquid separator, the aftercooler being connected with described specific gravity separator and the CS2 storage tank being connected with described aftercooler, the second described condenser is connected with described gas-liquid separator, described safety can is connected with described dirty gas blower fan with described specific gravity separator.Described dirty gas blower fan respectively by dirty gas blower fan arm be connected supervisor be connected, on described dirty gas blower fan arm, be provided with autocontrol valve, described charcoal absorption groove respectively by charcoal absorption groove connecting branch with described be connected supervisor be connected, on described charcoal absorption groove connecting branch, be provided with autocontrol valve.Above-mentioned viscose rayon gas recovery system, autocontrol valve due to what arrange on dirty gas blower fan arm, use cost is higher, in use, once there is case of fire between dirty gas blower fan and charcoal absorption groove, operating personnel cannot on-the-spot valve-off, and danger is higher, cannot ensure operating personnel's safety.Above-mentioned viscose rayon process gas recovery system simultaneously, alkali cleaning blower fan is arranged on before acid mist removal tank and alkaline bath, and in the time that gas recovery system breaks down, acid mist removal tank and alkaline bath all can not be worked, can not be by the H containing in waste gas
2s removes, and directly discharge, can pollute atmosphere.Above-mentioned viscose rayon process gas recovery system, is used dirty gas water scrubber to wash the waste gas of process, in water-washing process, in waste gas, can contain a large amount of moisture content, sprinkling separator need to be set after dirty gas water scrubber aqueous vapor is separated, and use cost is higher.
Summary of the invention
Technical problem to be solved by this invention is: provide a kind of use safer viscose rayon process gas recovery system.
In order to solve the problems of the technologies described above, the technical solution used in the present invention is: viscose rayon process gas recovery system, comprising: acid mist removal tank is arranged on described acid mist removal tank rear end alkaline bath interconnective with it, the alkali cleaning blower fan and the Na that are connected with described alkaline bath
2s, NaHS storage tank, the dirty gas water scrubber being connected with described alkali cleaning blower fan, the dirty gas blower fan being connected with described dirty gas water scrubber, the charcoal absorption groove being connected with described dirty gas blower fan, the evaporimeter being connected with described charcoal absorption groove, the first condenser being connected with described evaporimeter, the gas-liquid separator and the second condenser that are connected with described the first condenser, the specific gravity separator and the safety can that are connected with described gas-liquid separator, the aftercooler being connected with described specific gravity separator and the CS2 storage tank being connected with described aftercooler, the second described condenser is connected with described gas-liquid separator, described safety can is connected with described dirty gas blower fan with described specific gravity separator.Described dirty gas blower fan respectively by dirty gas blower fan arm be connected supervisor be connected, on described dirty gas blower fan arm, be provided with hand control valve, described charcoal absorption groove respectively by charcoal absorption groove connecting branch with described be connected supervisor be connected, on described charcoal absorption groove connecting branch, be provided with autocontrol valve, described connection supervisor is connected with nitrogen supervisor by some nitrogen arms, is provided with nitrogen arm autocontrol valve on described nitrogen arm.
In order to solve the problems of the technologies described above better, the further technical scheme that the present invention adopts is: be provided with three dirty gas blower fans and two charcoal absorption grooves, described dirty gas blower fan respectively three dirty gas blower fan arms be connected supervisor and be connected, described charcoal absorption groove is connected supervisor and is connected with described by two charcoal absorption groove connecting branches respectively, and described connection supervisor be responsible for and be connected with nitrogen by two nitrogen arms.
In order to solve the problems of the technologies described above better, the further technical scheme that the present invention adopts is: described dirty air water is washed comprising of tower structure: tank body, in the lower end of tank body, one side is provided with air inlet, top at tank body is provided with gas outlet, bottom at tank body is provided with delivery port, be provided with PP saddle type packing ring in the inside of described air inlet upper end tank body, inside at described PP saddle type packing ring upper end tank body is provided with shower nozzle, shower nozzle is connected with sparge pipe, in the tank body of described shower nozzle upper end, be provided with PP inclined tube filler watertight layer, described PP inclined tube filler watertight layer is made up of some PP pipes, on described PP pipe, be evenly provided with some air inlets, some PP pipes tilt to put, some air inlets on PP pipe are interconnected.
In order to solve the problems of the technologies described above better, the further technical scheme that the present invention adopts is: described PP inclined tube filler watertight layer is made up of three PP pipes.
Advantage of the present invention is: above-mentioned viscose rayon process gas recovery system, can effectively collect the waste gas that contains H2S and CS2, reach national discharge standard, can be to atmosphere and environment, collecting effect is good, and cost drops into lower, simultaneously, in the time that gas recovery system breaks down, the acid mist removal tank and the alkaline bath that are arranged on alkali cleaning blower fan front end still can work on, by the H containing in waste gas
2s removes, and reduces the pollution of discharging waste gas to atmosphere; Hand control valve due to what arrange on dirty gas blower fan arm, use cost is lower than autocontrol valve, in use, once there is case of fire between dirty gas blower fan and charcoal absorption groove, nitrogen in nitrogen tube can put out the fire connecting in supervisor automatically, valve-off, uses safer; Dirty gas water scrubber can separate the aqueous vapor after spray, does not need after dirty gas water scrubber, to use sprinkling separator to separate aqueous vapor again, has reduced use cost.
Brief description of the drawings
Fig. 1 is the structural representation of viscose rayon process gas recovery system of the present invention.
Fig. 2 is pipeline jointing construction schematic diagram between dirty gas blower fan and charcoal absorption groove in viscose rayon process gas recovery system of the present invention.
Fig. 3 is the structural representation that in viscose rayon process gas recovery system of the present invention, dirty air water is washed tower structure.
Fig. 4 is the structural representation of PP pipe in Fig. 3.
In figure: 1, acid mist removal tank, 2, alkaline bath, 3, alkali cleaning blower fan, 4, Na
2s, NaHS storage tank, 5, dirty gas water scrubber, 51, tank body, 52, air inlet, 53, gas outlet, 54, delivery port, 55, PP saddle type packing ring, 56, shower nozzle, 57, sparge pipe, 58, PP inclined tube filler watertight layer, 59, PP pipe, 510, air inlet, 6, dirty gas blower fan, 7, charcoal absorption groove, 8, evaporimeter, 9, the first condenser, 10, gas-liquid separator, 11, the second condenser, 12, specific gravity separator, 13, safety can, 14, aftercooler, 15, CS2 storage tank, 16, dirty gas blower fan arm, 17, connect supervisor, 18, hand control valve, 19, charcoal absorption groove connecting branch, 20, autocontrol valve, 21, nitrogen arm, 22, nitrogen supervisor, 23, nitrogen arm autocontrol valve, 24, exhaust pipe, 25, magnetic valve.
Detailed description of the invention
Describe in detail particular content of the present invention below in conjunction with the drawings and specific embodiments.
As shown in Figure 1 and Figure 2, viscose rayon process gas recovery system, comprising: acid mist removal tank 1 is arranged on described acid mist removal tank 1 rear end alkaline bath 2 interconnective with it, the alkali cleaning blower fan 3 and the Na that are connected with described alkaline bath 2
2s, NaHS storage tank 4, the dirty gas water scrubber 5 being connected with described alkali cleaning blower fan 3, the dirty gas blower fan 6 being connected with described dirty gas water scrubber 5, the charcoal absorption groove 7 being connected with described dirty gas blower fan 6, the evaporimeter 8 being connected with described charcoal absorption groove 7, the first condenser 9 being connected with described evaporimeter 8, the gas-liquid separator 10 and the second condenser 11 that are connected with described the first condenser 9, the specific gravity separator 12 and the safety can 13 that are connected with described gas-liquid separator 10, the aftercooler 14 being connected with described specific gravity separator 14 and the CS2 storage tank 15 being connected with described aftercooler 14, the second described condenser 11 is connected with described gas-liquid separator 10, described safety can 12 is connected with described dirty gas blower fan 6 with described specific gravity separator 12, described dirty gas blower fan 6 respectively by dirty gas blower fan arm 16 be connected supervisor and 17 be connected, on described dirty gas blower fan arm 16, be provided with hand control valve 18, described charcoal absorption groove 7 is connected supervisor and 17 is connected with described by charcoal absorption groove connecting branch 19 respectively, on described charcoal absorption groove connecting branch 19, be provided with autocontrol valve 20, described connection supervisor 17 is connected with nitrogen supervisor 22 by some nitrogen arms 21, on described nitrogen arm 21, be provided with nitrogen arm autocontrol valve 23.
As shown in Figure 2, in the present embodiment, be provided with three dirty gas blower fans 6 and two charcoal absorption grooves 7, described dirty gas blower fan 6 respectively three dirty gas blower fan arms 16 be connected supervisor 17 and be connected, described charcoal absorption groove 7 is connected supervisor and 17 is connected with described by two charcoal absorption groove connecting branches 19 respectively, and described connection supervisor 17 is responsible for 22 by two nitrogen arms 21 and nitrogen and is connected.
As Fig. 3, shown in Fig. 4, in the present embodiment, comprising of described dirty gas water scrubber 5 structures: tank body 51, in the lower end of tank body 51, a side is provided with air inlet 52, be provided with gas outlet 53 at the top of tank body 51, be provided with delivery port 54 in the bottom of tank body 51, be provided with PP saddle type packing ring 55 in the inside of described air inlet 51 upper end tank bodies 51, inside at described PP saddle type packing ring 55 upper end tank bodies 51 is provided with shower nozzle 56, shower nozzle 56 is connected with sparge pipe 57, in the tank body 51 of described shower nozzle 56 upper ends, be provided with PP inclined tube filler watertight layer, 58, described PP inclined tube filler watertight layer 58 is made up of some PP pipes 59, on described PP pipe 59, be evenly provided with some air inlets 510, some PP pipes 59 tilt to put, some air inlets 510 on PP pipe 59 are interconnected.
As shown in Figure 3, Figure 4, in the present embodiment, described PP inclined tube filler watertight layer 58 is made up of three PP pipes 59.
When viscose rayon process gas recovery system is used, first the waste gas that contains H2S and CS2 that carrys out the generation of self-adhesive production process aspirate by alkali cleaning blower fan 3, after acid mist removal tank 1 is removed impurity, removes H through alkaline bath 2
2s, guarantees to enter H in the waste gas of next step charcoal absorption groove 7
2s content is less than 10ppm.
H
2S+NaOH→NaHS+H
2O
H
2S+2NaOH→Na
2S+2H
2O
H
2s reacts with NaOH, generates two kinds of materials, Na
2s and NaHS solution, Na
2s and NaHS solution enter Na
2s, NaHS storage tank 4.By the suction of dirty gas blower fan 6, first after dirty gas water scrubber 5, send into charcoal absorption groove 7 by dirty gas blower fan 6 from alkaline bath 2 waste gas out, when use, waste gas enters in tank body 51 by dirty gas water scrubber 5 air inlets 52, after PP saddle type packing ring 55 by shower nozzle spraying cooling, cooled aqueous vapor is by managing the air inlet 510 on 59 by each PP successively, most of moisture content in aqueous vapor is by under the inner wall blocking of PP pipe 59, the delivery port 54 of the bottom by tank body 51 together with shower water is discharged, separate rear end waste gas discharges by the gas outlet 53 at tank body 51 tops with water, in above-mentioned viscose rayon process gas recovery system, dirty gas cooling tower structure can separate the aqueous vapor after spray, do not need after dirty gas cooling tower, to use again sprinkling separator to separate aqueous vapor, reduce use cost.C in waste gas
2s is by charcoal absorption, and clean tail gas directly discharges.Charcoal absorption groove 7 adsorbs CS
2after saturated, first by steam to the CS in charcoal absorption groove 7
2carry out desorb, the CS after desorb
2steam and condensed water together enter after evaporimeter 8, containing the CS of residue steam
2steam enters the first condenser 9, after circulating cooling water cooling, and overwhelming majority residue steam and CS
2steam is cooled into liquid state, enters gas-liquid separator 10 and separates, the steam that uncolled one-tenth is liquid and CS
2steam enters the second condenser 11 and carries out cooling, be cooled to and also enter gas-liquid separator 10 after liquid state and separate, liquid after separation enters specific gravity separator 12 and carries out proportion separation, gas after separation enters safety can 13 under the effect of nitrogen, gas after treatment is got back in charcoal absorption groove 7 acting on by dirty gas blower fan 6, liquid enters specific gravity separator 12 again and carries out proportion separation, then enters aftercooler 14 and enters CS2 storage tank 15 reservoirs after cooling.Once in use gas recovery system breaks down, the acid mist removal tank 1 and the alkaline bath 2 that are arranged on alkali cleaning blower fan 3 ends still can work on, by the H containing in waste gas
2s removes, and the magnetic valve 25 of controlling on the exhaust pipe 24 being connected with alkali cleaning blower fan 3 is opened, and removes H
2the waste gas of S discharges through exhaust pipe 24, reduces the pollution of discharging waste gas to atmosphere.
In use procedure, once there is case of fire between dirty gas blower fan 5 and charcoal absorption groove 6, the nitrogen in nitrogen supervisor 22 can put out the fire connecting in supervisor 17.
Claims (4)
1. viscose rayon process gas recovery system, it is characterized in that: comprising: acid mist removal tank (1) is arranged on described acid mist removal tank (1) rear end alkaline bath interconnective with it (2) the alkali cleaning blower fan (3) and the Na that are connected with described alkaline bath (2)
2s, NaHS storage tank (4), the dirty gas water scrubber (5) being connected with described alkali cleaning blower fan (3), the dirty gas blower fan (6) being connected with described dirty gas water scrubber (5), the charcoal absorption groove (7) being connected with described dirty gas blower fan (6), the evaporimeter (8) being connected with described charcoal absorption groove (7), the first condenser (9) being connected with described evaporimeter (8), the gas-liquid separator (10) being connected with described the first condenser (9) and the second condenser (11), the specific gravity separator (12) being connected with described gas-liquid separator (10) and safety can (13), the aftercooler (14) being connected with described specific gravity separator (14) and the CS2 storage tank (15) being connected with described aftercooler (14), described the second condenser (11) is connected with described gas-liquid separator (10), described safety can (12) is connected with described dirty gas blower fan (6) with described specific gravity separator (12), described dirty gas blower fan (6) respectively by dirty gas blower fan arm (16) be connected supervisor (17) and be connected, on described dirty gas blower fan arm (16), be provided with hand control valve (18), described charcoal absorption groove (7) is connected supervisor (17) and is connected with described by charcoal absorption groove connecting branch (19) respectively, on described charcoal absorption groove connecting branch (19), be provided with autocontrol valve (20), described connection supervisor (17) is connected with nitrogen supervisor (22) by some nitrogen arms (21), on described nitrogen arm (21), be provided with nitrogen arm autocontrol valve (23).
2. according to viscose rayon process gas recovery system claimed in claim 1, it is characterized in that: be provided with three dirty gas blower fans (6) and two charcoal absorption grooves (7), described dirty gas blower fan (6) respectively three dirty gas blower fan arms (16) be connected supervisor (17) and be connected, described charcoal absorption groove (7) is connected supervisor (17) and is connected with described by two charcoal absorption groove connecting branches (19) respectively, and described connection supervisor (17) is responsible for (22) by two nitrogen arms (21) and nitrogen and is connected.
3. according to viscose rayon process gas recovery system claimed in claim 2, it is characterized in that: the comprising of described dirty gas water scrubber (5) structure: tank body (51), in the lower end of tank body (51), a side is provided with air inlet (52), be provided with gas outlet (53) at the top of tank body (51), be provided with delivery port (54) in the bottom of tank body (51), be provided with PP saddle type packing ring (55) in the inside of described air inlet (51) upper end tank body (51), be provided with shower nozzle (56) in the inside of described PP saddle type packing ring (55) upper end tank body (51), shower nozzle (56) is connected with sparge pipe (57), in the tank body (51) of described shower nozzle (56) upper end, be provided with PP inclined tube filler watertight layer (58), described PP inclined tube filler watertight layer (58) is managed (59) by some PP and is formed, on described PP pipe (59), be evenly provided with some air inlets (510), some PP pipes (59) tilt to put, some air inlets (510) on PP pipe (59) are interconnected.
4. according to viscose rayon process gas recovery system claimed in claim 3, it is characterized in that: described PP inclined tube filler watertight layer (58) is managed (59) by three PP and formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410260538.6A CN104028094A (en) | 2014-06-10 | 2014-06-10 | Viscose fiber production waste gas recovery system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410260538.6A CN104028094A (en) | 2014-06-10 | 2014-06-10 | Viscose fiber production waste gas recovery system |
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| Publication Number | Publication Date |
|---|---|
| CN104028094A true CN104028094A (en) | 2014-09-10 |
Family
ID=51459224
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410260538.6A Pending CN104028094A (en) | 2014-06-10 | 2014-06-10 | Viscose fiber production waste gas recovery system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105879552A (en) * | 2016-05-27 | 2016-08-24 | 赛得利（福建）纤维有限公司 | Treatment system and treatment method for viscose drying tail gas |
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| CN103316580A (en) * | 2013-07-16 | 2013-09-25 | 泉州市天龙环境工程有限公司 | Viscose fiber desulfuration and recovery device and method |
| CN103341304A (en) * | 2013-07-23 | 2013-10-09 | 江苏申江环境科技有限公司 | Waste gas recovery system for mucilage glue production |
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2014
- 2014-06-10 CN CN201410260538.6A patent/CN104028094A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007038071A (en) * | 2005-08-01 | 2007-02-15 | Toyobo Co Ltd | System for recovering organic solvent |
| JP5061482B2 (en) * | 2006-03-27 | 2012-10-31 | Ｊｆｅスチール株式会社 | Method for separating and recovering carbon monoxide in source gas |
| CN201643921U (en) * | 2010-03-22 | 2010-11-24 | 江苏蓝之达环境科技股份有限公司 | Acid mist removal tank |
| CN201643967U (en) * | 2010-03-22 | 2010-11-24 | 江苏蓝之达环境科技股份有限公司 | Industrial waste gas treatment and recycling device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105879552A (en) * | 2016-05-27 | 2016-08-24 | 赛得利（福建）纤维有限公司 | Treatment system and treatment method for viscose drying tail gas |
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Application publication date: 20140910 |