CN110345496A - A kind of chemical waste liquid burned waste gas processing system - Google Patents
A kind of chemical waste liquid burned waste gas processing system Download PDFInfo
- Publication number
- CN110345496A CN110345496A CN201910570518.1A CN201910570518A CN110345496A CN 110345496 A CN110345496 A CN 110345496A CN 201910570518 A CN201910570518 A CN 201910570518A CN 110345496 A CN110345496 A CN 110345496A
- Authority
- CN
- China
- Prior art keywords
- flue gas
- waste liquid
- pipeline
- chilling
- falling
- 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
- 239000007788 liquid Substances 0.000 title claims abstract description 52
- 239000002912 waste gas Substances 0.000 title claims abstract description 27
- 239000002894 chemical waste Substances 0.000 title claims abstract description 19
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 68
- 239000003546 flue gas Substances 0.000 claims abstract description 68
- 239000007789 gas Substances 0.000 claims abstract description 32
- 239000002699 waste material Substances 0.000 claims abstract description 26
- 238000000034 method Methods 0.000 claims abstract description 14
- 239000006096 absorbing agent Substances 0.000 claims description 54
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 35
- 239000011552 falling film Substances 0.000 claims description 32
- 239000002253 acid Substances 0.000 claims description 24
- 230000003472 neutralizing effect Effects 0.000 claims description 23
- 238000002485 combustion reaction Methods 0.000 claims description 22
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 claims description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 16
- 238000001816 cooling Methods 0.000 claims description 15
- 235000021110 pickles Nutrition 0.000 claims description 14
- 238000010521 absorption reaction Methods 0.000 claims description 12
- 238000005406 washing Methods 0.000 claims description 12
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 9
- 239000000498 cooling water Substances 0.000 claims description 7
- 239000000945 filler Substances 0.000 claims description 7
- 239000006227 byproduct Substances 0.000 claims description 6
- 238000004140 cleaning Methods 0.000 claims description 6
- 239000000446 fuel Substances 0.000 claims description 6
- 239000007921 spray Substances 0.000 claims description 6
- 238000002156 mixing Methods 0.000 claims description 4
- 238000000889 atomisation Methods 0.000 claims description 3
- 125000004122 cyclic group Chemical group 0.000 claims description 3
- 239000010408 film Substances 0.000 claims description 3
- 239000007792 gaseous phase Substances 0.000 claims description 3
- 238000000197 pyrolysis Methods 0.000 claims description 3
- 238000010791 quenching Methods 0.000 claims description 3
- 238000010992 reflux Methods 0.000 claims description 3
- 238000005507 spraying Methods 0.000 claims description 3
- 239000002351 wastewater Substances 0.000 claims description 3
- 239000004743 Polypropylene Substances 0.000 claims description 2
- 239000003595 mist Substances 0.000 claims description 2
- -1 polypropylene Polymers 0.000 claims description 2
- 229920001155 polypropylene Polymers 0.000 claims description 2
- 238000011084 recovery Methods 0.000 claims description 2
- 238000010304 firing Methods 0.000 claims 1
- 230000006378 damage Effects 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 6
- 239000010808 liquid waste Substances 0.000 abstract description 6
- 239000000126 substance Substances 0.000 abstract description 5
- HGUFODBRKLSHSI-UHFFFAOYSA-N 2,3,7,8-tetrachloro-dibenzo-p-dioxin Chemical compound O1C2=CC(Cl)=C(Cl)C=C2OC2=C1C=C(Cl)C(Cl)=C2 HGUFODBRKLSHSI-UHFFFAOYSA-N 0.000 abstract description 4
- 229910052731 fluorine Inorganic materials 0.000 abstract description 4
- 239000011737 fluorine Substances 0.000 abstract description 4
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 abstract description 3
- 229910052801 chlorine Inorganic materials 0.000 abstract description 3
- 239000000460 chlorine Substances 0.000 abstract description 3
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 abstract 1
- 230000009102 absorption Effects 0.000 description 9
- 239000000047 product Substances 0.000 description 4
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 3
- 235000019504 cigarettes Nutrition 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000004090 dissolution Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 150000001336 alkenes Chemical class 0.000 description 1
- 238000010009 beating Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 238000002207 thermal evaporation Methods 0.000 description 1
Classifications
-
- 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
- B01D53/14—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 absorption
- B01D53/1418—Recovery of products
-
- 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
- B01D53/14—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 absorption
- B01D53/1456—Removing acid components
-
- 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
- B01D53/14—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 absorption
- B01D53/18—Absorbing units; Liquid distributors therefor
-
- 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
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/68—Halogens or halogen compounds
-
- 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
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/77—Liquid phase processes
- B01D53/78—Liquid phase processes with gas-liquid contact
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G7/00—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals
- F23G7/04—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste liquors, e.g. sulfite liquors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G7/00—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals
- F23G7/06—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/20—Halogens or halogen compounds
- B01D2257/204—Inorganic halogen compounds
- B01D2257/2045—Hydrochloric acid
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/20—Halogens or halogen compounds
- B01D2257/204—Inorganic halogen compounds
- B01D2257/2047—Hydrofluoric acid
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Treating Waste Gases (AREA)
Abstract
The invention discloses a kind of chemical waste liquid burned waste gas processing systems, including waste liquid, burned waste gas processing unit and flue gas processing device；Organic destruction removal rate can be made to reach 99.99% or more using treatment process of the invention, the generation of harmful substance bisoxirane (dioxin) can be completely eliminated；By the processing layer by layer to flue gas, country is complied fully with for the discharge standard of flue gas；Fluorine-containing, chlorine contained exhaust gas, waste liquid can individually be handled and be handled simultaneously, it is provided with emergency storage tank, once the accidents such as power-off fault occur, emergency storage tank can make high-temperature flue gas not enter follow-up system, reduce security risk, circulation supply can be carried out to the product during exhaust gas and liquid waste treatment system simultaneously to utilize, keeps treatment effect more preferable, while energy-saving and emission-reduction.
Description
Technical field
The present invention relates to chemical waste liquid exhaust-gas treatment fields, more specifically, it relates to a kind of chemical waste liquid burned waste gas
Processing system.
Background technique
Since existing industry, agricultural etc. constantly rapidly develop, while, existing burning higher and higher to environmental protection requirement
Treatment process is commonly present insufficient, the halfway problem of exhaust-gas treatment of burning；Environmental requirement, especially chemical products has been not achieved
Burning Pollution on Air layer destruction, seriously affected our living environment.
For exhaust gas, liquid waste treatment system, the high-temperature flue gas come out out of incinerator needs the cooling ability of quencher
It can be further processed, once generation power-off fault or quencher stop working, can be broken without cooling high-temperature flue gas
Bad next processing system, there is serious security risk.In addition the prior art is worked for exhaust gas, liquid waste treatment system
The waste utilization that the product generated in journey can not be recycled.
Summary of the invention
It is an object of the invention to overcome problem above of the existing technology, provide at a kind of chemical waste liquid burned waste gas
Reason system can make organic destruction removal rate reach 99.99% or more, can completely eliminate using treatment process of the invention
The generation of evil substance bisoxirane (dioxin)；By the processing layer by layer to flue gas, country is complied fully with for the row of flue gas
Put standard；Fluorine-containing, chlorine contained exhaust gas, waste liquid can individually be handled and be handled simultaneously, be provided with emergency storage tank, once stop
The accidents such as electric fault, emergency storage tank can make high-temperature flue gas not enter follow-up system, reduce security risk, while can be to exhaust gas
And the product during liquid waste treatment system carries out circulation supply and utilizes, and keeps treatment effect more preferable, while energy-saving and emission-reduction.
To realize above-mentioned technical purpose and the technique effect, the invention is realized by the following technical scheme: Yi Zhonghua
Work waste liquid burned waste gas processing system, including waste liquid, burned waste gas processing unit and flue gas processing device；
The waste liquid, burned waste gas processing unit include: that air is sent into the combustion air blower of incinerator, is used to burn
Fuel high-temperature heats the combustion chamber of incinerator and burns the incinerator of waste liquid and raffinate after atomization, combustion air blower and burning
By piping connection, combustion chamber is connected to furnace with incinerator.
The flue gas processing device includes: the chilling cooler of cooling quencher, the quencher of rapid cooling flue gas, chilling
Tank, mixing, washing liquid and overflow acid solution lead to extraneous overflow launder, the falling-film absorber for reducing HCL and HF concentration, washing flue gas
Packed absorber, neutralize remnants HCL and HF neutralizing tower, neutralizing tower pump, by flue gas be discharged exhaust blower and communicate with the outside world
Chimney；
The incinerator is connect with quencher by pipeline, and the quencher is communicated with chilling tank, the chilling tank and overflow
Chute is connected with chilling cooler by pipeline, also with falling-film absorber by pipeline flow back connect, the chilling cooler with
It is provided with chilling pump on the connected pipeline of chilling tank, is provided with flood pump on the pipeline that the overflow launder is connected with chilling tank, institute
It states falling-film absorber and packed absorber to connect by pipeline reflux, the packed absorber and overflow launder and neutralizing tower pass through pipe
Road connection, is provided with absorption tower pump, the neutralizing tower is connect by pipeline with exhaust blower, is arranged on pipeline in connecting pipe
There is neutralizing tower pump, a shunt conduit is additionally provided on pipeline and is communicated with the outside world and carrys out waste discharge, the exhaust blower passes through with chimney
Pipeline connection, the chimney and leads to the external world.
A kind of chemical waste liquid burned waste gas processing system, comprises the following steps that:
Step 1: fuel is sent into combustion chamber ignition by pipeline and burns, until making exhaust gas enter incinerator after set temperature, gives up
Liquid and raffinate spray into furnace automatically after being atomized with pressurized with compressed air, and combustion air is sent into furnace by combustion air blower multistage
It is interior；
Step 2: the flue gas come out from incinerator enters quencher, and in quencher, flue gas passes through the spray of quencher bottom
Heat and mass transfer process occurs for the pickle contact that hole is ejected；
Step 3: chilling tank being entered by the flue gas that quencher comes out, the flue gas come out after over-quenching tank enters back into falling liquid film
Absorber, in falling-film absorber, flue gas is gone in the same direction with cyclic absorption pickle, and the dissolution of HF and HCl gas and water vapour are solidifying
The heat that knot is released is taken away by the recirculated cooling water flowed in falling-film absorber；
Step 4: the acid solution of the hydrofluoric acid and hydrochloric acid that are come out by falling-film absorber bottom enters chilling tank, pickle circulation
Acid solution a part of pump enters quencher for spraying cooling flue gas while guaranteeing the liquid level of chilling tank, remaining major part is by urgency
It is cold to pump out out-of-bounds as by-product hydrofluoric acid and hydrochloric acid acid solution；
Step 5: the flue gas come out from falling-film absorber enters back into the packed absorber equipped with filler, with cleaning solution to cigarette
Gas carries out carrying out washing treatment, and bottom wash liquid a part enters falling-film absorber as diluted acid and absorbs the exhaust gas being discharged from chilling tank,
Another part is sent to overflow launder to be mixed with the acid solution that chilling tank overflow goes out, and is then pumped into submitting out-of-bounds by overflow；
Step 6: the flue gas come out from packed absorber is re-fed into neutralizing tower and neutralizes；Neutralizer uses certain density NaOH
Solution neutralizes the HF and HCl of a small amount of remnants in flue gas, and waste water flows out the external world through pipeline, and gas reaches country's discharge mark
Standard is sent to smoke stack emission by exhaust blower and goes out.
Preferably, being additionally provided with the emergency storage tank connecting with quencher by pipeline.
It is provided with emergency storage tank, once the accidents such as power-off fault occur, it is subsequent that emergency storage tank can be such that high-temperature flue gas does not enter
System reduces security risk.
Preferably, waste liquid is in fine mist in furnace in the step 1, waste liquid, exhaust gas are in incinerator according to burning
3T1E principle-temperature, time, vortex and coefficient of excess air, fully oxidized, pyrolysis, burning, ignition temperature maintain 1000
DEG C -1400 DEG C, organic destruction removal rate is made to reach 99.99% or more.
Preferably, pickle is flowed into after packed absorber initial absorption in the step 3.
Preferably, the recirculated cooling water in the step 3 is 32 DEG C, falling-film absorber is supplied to by circulating water pipeline,
40 DEG C of recirculated cooling waters being discharged from falling-film absorber return to circulating water cooling tower, then cool to 32 DEG C and be discharged into cooling pond.
Preferably, the attainable concentration of the acid solution of by-product hydrofluoric acid and hydrochloric acid depends on HF in flue gas in the step 4
The isothermal that can be provided with the gaseous phase partial pressure and falling-film absorber of HCl absorbs temperature.Using the hydrogen fluorine being discharged after this process
Acid and hydrochloric acid solution concentration are 37% and 25% or so.
Preferably, the filler is polypropylene Pall ring filler, the cleaning solution is desalted water.It realizes high with cleaning solution
Effect ground carries out carrying out washing treatment to flue gas
Preferably, neutralizing tower 13, which is also added, desalted water, secondary washing is carried out to flue gas.
In conclusion the invention has the following advantages:
1, organic destruction removal rate can be made to reach 99.99% or more using treatment process of the invention, can disappeared completely
Except the generation of harmful substance bisoxirane (dioxin)；By the processing layer by layer to flue gas, country is complied fully with for flue gas
Discharge standard；
2, fluorine-containing, chlorine contained exhaust gas, waste liquid can individually be handled and is handled simultaneously；
3, it is provided with emergency storage tank, once the accidents such as power-off fault occur, after emergency storage tank can be such that high-temperature flue gas does not enter
Continuous system, reduces security risk, while can carry out circulation supply to the product during exhaust gas and liquid waste treatment system and utilize,
Keep exhaust gas and liquid waste processing effect more preferable, while energy-saving and emission-reduction.
Detailed description of the invention
Fig. 1 is a kind of process flow chart of chemical waste liquid burned waste gas processing system.
In figure: 1, combustion air blower；2, incinerator；3, chilling cooler；4, chilling pumps；5, quencher；6, chilling tank；
7, accident slot；8, flood pump；9, overflow launder；10, falling-film absorber；11, packed absorber；12, absorption tower pump；13, neutralizing tower；
14, neutralizing tower pumps；15, exhaust blower；16, chimney；17, combustion chamber.
Specific embodiment
To realize above-mentioned technical purpose and the technique effect, the invention is realized by the following technical scheme: Yi Zhonghua
Work waste liquid burned waste gas processing system, including waste liquid, burned waste gas processing unit and flue gas processing device；
The waste liquid, burned waste gas processing unit include: that air is sent into the combustion air blower 1 of incinerator 2, is used to fire
Fuel burning is heated at high temperature the combustion chamber 17 of incinerator 2 and burns the incinerator 2 of waste liquid and raffinate after atomization, combustion air blower
1 and incinerator 2 by piping connection, combustion chamber 17 is connected to incinerator 2.
The flue gas processing device include: the chilling cooler 3 of cooling quencher 5, rapid cooling flue gas quencher 5,
Chilling tank 6, mixing, washing liquid and overflow acid solution lead to extraneous overflow launder 9, the falling-film absorber 10 for reducing HCL and HF concentration,
Wash the air draft that the packed absorber 11 of flue gas, the neutralizing tower 13 for neutralizing remnants HCL and HF, neutralizing tower pumps 14, flue gas are discharged
Machine 15 and the chimney 16 communicated with the outside world；
The incinerator 2 is connect with quencher 5 by pipeline, and the quencher 5 is communicated with chilling tank 6, the chilling tank 6
It is connect with overflow launder 9 and chilling cooler 3 by pipeline, is also flowed back and connected by pipeline with falling-film absorber 10, the chilling
It is provided with chilling pump 4 on the pipeline that cooler 3 is connected with chilling tank 6, is set on the pipeline that the overflow launder 9 is connected with chilling tank 6
Be equipped with flood pump 8, the falling-film absorber 10 is connected with packed absorber 11 by pipeline reflux, the packed absorber 11 and
Overflow launder 9 is connected with neutralizing tower 13 by pipeline, and absorption tower pump 12, the neutralizing tower 13 and air draft are provided in connecting pipe
Machine 15 is connected by pipeline, and neutralizing tower pump 14 is provided on pipeline, a shunt conduit is additionally provided on pipeline and communicates with the outside world
Carry out waste discharge, the exhaust blower 15 is connect with chimney 16 by pipeline, the chimney 16 with lead to the external world.It is additionally provided with and anxious
The emergency storage tank (7) that cooler (5) is connected by pipeline.
A kind of chemical waste liquid burned waste gas processing system, comprises the following steps that:
Step 1: fuel is sent into combustion chamber 17 by pipeline, after-combustion is lighted through start-up burner, until beating after set temperature
Exhaust gas valve is opened, so that exhaust gas is entered incinerator 2, waste liquid and raffinate spray into furnace automatically after being atomized with pressurized with compressed air, combustion-supporting
Air is sent into furnace by 1 multistage of combustion air blower；Waste liquid is in furnace according to burning 3T1E (temperature, time, vortex, air
Coefficient of excess) principle is fully oxidized, pyrolysis, burns, and so that organic destruction removal rate is reached 99.99% or more, ignition temperature dimension
It holds at 1200 degree or so.
Step 2: the high-temperature flue gas come out from incinerator 2 is directly entered quencher 5 through vertical gas pass, in quencher 5, cigarette
Heat and mass transfer process occurs for the pickle contact that gas is ejected by the spray orifice of 5 bottom of quencher；HF and HCl in flue gas is dilute
Sour circulation fluid absorption process is exothermic reaction, and water can be absorbed a large amount of thermal energy in flue gas by thermal evaporation in diluted acid circulation fluid, together
Heat transmitting of the Shi Xunhuan pickle between flue gas itself, also reduces rapidly the temperature of flue gas.By quencher 5, can make
Flue-gas temperature is reduced to 50 DEG C or so from 1200 DEG C, can completely eliminate harmful substance bisoxirane (dioxin) substantially in this way
It generates.
Step 3: chilling tank 6 being entered by the flue gas that quencher 5 comes out, the flue gas come out after over-quenching tank 6 enters back into drop
Film absorber 10, in falling-film absorber 10, flue gas and cyclic absorption pickle go that (pickle is from packed absorber in the same direction
Flowed into after 11 initial absorptions), at this point, HF the and HCl gas in flue gas is dissolved in pickle, water vapour is condensed into water.By
It is all exothermic reaction in the dissolution of HF and HCl gas and water recovery, the heat that they are released is flowed in falling-film absorber 10
Recirculated cooling water take away；
Step 4: the acid solution of the hydrofluoric acid and hydrochloric acid that are come out by 10 bottom of falling-film absorber enters chilling tank 6, pickle
Acid solution a part of circulating pump enters quencher 5 for spraying cooling flue gas while guaranteeing the liquid level of chilling tank 6, remaining big portion
Divide to be sent out by chilling pump 4 and is out-of-bounds used as by-product hydrofluoric acid and hydrochloric acid acid solution；The acid solution of by-product hydrofluoric acid and hydrochloric acid is attainable dense
Degree depends on the isothermal that the gaseous phase partial pressure of HF and HCl and falling-film absorber 10 can be provided in flue gas and absorbs temperature, using this work
The hydrofluoric acid and hydrochloric acid acid strength being discharged after skill processing are 37% and 25% or so.
Step 5: the flue gas come out from falling-film absorber 10, HF and HCl content have been substantially reduced, have been entered back into equipped with poly- third
The packed absorber 11 of alkene Pall ring filler carries out carrying out washing treatment, bottom wash liquid a part to flue gas with cleaning solution-desalted water
Enter falling-film absorber 10 as diluted acid and absorb the exhaust gas being discharged from chilling tank 6, another part is sent to overflow launder 9 and chilling tank
The acid solution mixing that 6 overflows go out, is then sent to submitting out-of-bounds by flood pump 8；
Step 6: unabsorbed HF and HCl amount has been trace level in absorption tower, the cigarette come out from packed absorber 11
Gas is re-fed into the neutralization of neutralizing tower 13；Neutralizing tower 13, which is also added, desalted water, carries out secondary washing to flue gas, neutralizer is using certain
The NaOH solution of concentration neutralizes the HF and HCl of a small amount of remnants in flue gas, and waste water flows out the external world through pipeline, and gas reaches
National emission standard is sent to chimney 16 by exhaust blower 15 and emits.
Claims (10)
1. a kind of chemical waste liquid burned waste gas processing system, it is characterised in that: including waste liquid, burned waste gas processing unit and flue gas
Processing unit；
The waste liquid, burned waste gas processing unit include: that air is sent into the combustion air blower (1) of incinerator (2), for firing
Fuel burning is heated at high temperature the combustion chamber (17) of incinerator (2) and burns the incinerator (2) of waste liquid and raffinate after atomization, and burning is empty
By piping connection, combustion chamber is connected to incinerator (2) for gas blower (1) and incinerator (2)；
The flue gas processing device includes: the chilling cooler (3) of cooling quencher, the quencher (5) of rapid cooling flue gas, urgency
The falling-film absorber that cold tank (6), mixing, washing liquid and overflow acid solution lead to extraneous overflow launder (9), reduce HCL and HF concentration
(10), the packed absorber (11) for washing flue gas, the neutralizing tower (13) for neutralizing remnants HCL and HF, the exhaust blower that flue gas is discharged
(15) and the chimney (16) that communicates with the outside world；
The incinerator (2) is connect with quencher (5) by pipeline, and the quencher (5) communicates with chilling tank (6), the urgency
Cold tank (6) is connect with overflow launder (9) and chilling cooler (3) by pipeline, is also flowed back with falling-film absorber (10) by pipeline
Connection is provided with chilling on the pipeline that the chilling cooler (3) is connected with chilling tank (6) and pumps (4), the overflow launder (9) and
It is provided with flood pump (8) on the connected pipeline of chilling tank (6), the falling-film absorber (10) and packed absorber (11) pass through pipe
Road reflux connection, the packed absorber (11) is connect with overflow launder (9) and neutralizing tower (13) by pipeline, in connecting pipe
Be provided with absorption tower pump (12), the neutralizing tower (13) is connect with exhaust blower (15) by pipeline, be provided on pipeline in and
Tower (13) pumps, and is additionally provided with a shunt conduit on pipeline and communicates with the outside world and carrys out waste discharge, the exhaust blower (15) and chimney
(16) it is connected by pipeline, the chimney (16) and leads to the external world.
2. a kind of chemical waste liquid burned waste gas processing system according to claim 1, it is characterised in that: be additionally provided with and anxious
The emergency storage tank (7) that cooler (5) is connected by pipeline.
3. a kind of chemical waste liquid burned waste gas processing system according to claim 1, it is characterised in that: including following technique
Step:
Step 1: fuel is sent into combustion chamber (17) ignition by pipeline, until making exhaust gas enter incinerator after set temperature
(2), waste liquid and raffinate spray into furnace automatically after being atomized with pressurized with compressed air, and combustion air is more by combustion air blower (1)
In section feeding furnace；
Step 2: the flue gas come out from incinerator (2) enters quencher (5), and in quencher (5), flue gas passes through quencher (5)
Heat and mass transfer process occurs for the pickle contact that the spray orifice of bottom ejects；
Step 3: chilling tank (6) being entered by the flue gas that quencher (5) come out, the flue gas come out after over-quenching tank (6) enters back into
Falling-film absorber (10), in falling-film absorber (10), flue gas is gone in the same direction with cyclic absorption pickle, HF and HCl gas is molten
The heat that solution and water recovery are released is taken away by the recirculated cooling water flowed in falling-film absorber (10)；
Step 4: the acid solution of the hydrofluoric acid and hydrochloric acid that are come out by falling-film absorber (10) bottom enters chilling tank (6), pickle
Acid solution a part of circulating pump enters quencher (5) for spraying cooling flue gas while guaranteeing the liquid level of chilling tank (6), remaining
Most of sent out by chilling pump (4) is out-of-bounds used as by-product hydrofluoric acid and hydrochloric acid acid solution；
Step 5: the flue gas come out from falling-film absorber (10) enters back into the packed absorber (11) equipped with filler, uses cleaning solution
Carrying out washing treatment is carried out to flue gas, bottom wash liquid a part enters falling-film absorber (10) as diluted acid and absorbs from chilling tank (6)
The exhaust gas of discharge, another part is sent to overflow launder (9) to be mixed with the acid solution that (6) overflow of chilling tank goes out, then by flood pump (8)
It is sent to submitting out-of-bounds；
Step 6: the flue gas come out from packed absorber (11) is re-fed into neutralizing tower (13) and neutralizes；Neutralizer is using certain density
NaOH solution neutralizes the HF and HCl of a small amount of remnants in flue gas, and waste water flows out the external world through pipeline, and gas reaches national row
It puts standard chimney (16) is sent to by exhaust blower (15) and emit.
4. a kind of processing step of chemical waste liquid burned waste gas processing system according to claim 3, it is characterised in that: institute
Waste liquid is stated in step 1 in furnace in fine mist, waste liquid, exhaust gas in incinerator (2) according to burning 3T1E principle-temperature, the time,
Vortex and coefficient of excess air, fully oxidized, pyrolysis, burning, ignition temperature maintain 1000 DEG C -1400 DEG C.
5. a kind of processing step of chemical waste liquid burned waste gas processing system according to claim 3, it is characterised in that: institute
Stating pickle in step 3 is flowed into after packed absorber (11) initial absorption.
6. a kind of processing step of chemical waste liquid burned waste gas processing system according to claim 3, it is characterised in that: institute
Stating the recirculated cooling water in step 3 is 32 DEG C, falling-film absorber (10) is supplied to by circulating water pipeline, from falling-film absorber (10)
40 DEG C of recirculated cooling waters of discharge return to circulating water cooling tower, then cool to 32 DEG C and be discharged into cooling pond.
7. a kind of processing step of chemical waste liquid burned waste gas processing system according to claim 3, it is characterised in that: institute
State gaseous phase partial pressure and drop of the attainable concentration of the acid solution of by-product hydrofluoric acid and hydrochloric acid in step 4 depending on HF and HCl in flue gas
The isothermal that film absorber (10) can be provided absorbs temperature.
8. a kind of processing step of chemical waste liquid burned waste gas processing system according to claim 3, it is characterised in that: institute
Stating filler is polypropylene Pall ring filler.
9. a kind of processing step of chemical waste liquid burned waste gas processing system according to claim 3, it is characterised in that: institute
Stating cleaning solution is desalted water.
10. a kind of processing step of chemical waste liquid burned waste gas processing system according to claim 3, it is characterised in that:
Neutralizing tower (13), which is also added, in the step 6 desalted water, carries out secondary washing to flue gas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910570518.1A CN110345496A (en) | 2019-06-27 | 2019-06-27 | A kind of chemical waste liquid burned waste gas processing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910570518.1A CN110345496A (en) | 2019-06-27 | 2019-06-27 | A kind of chemical waste liquid burned waste gas processing system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110345496A true CN110345496A (en) | 2019-10-18 |
Family
ID=68177223
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910570518.1A Pending CN110345496A (en) | 2019-06-27 | 2019-06-27 | A kind of chemical waste liquid burned waste gas processing system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110345496A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112933946A (en) * | 2021-02-19 | 2021-06-11 | 陈洪超 | Deacidification treatment device for incineration tail gas |
| CN113117442A (en) * | 2020-01-10 | 2021-07-16 | 新疆新特晶体硅高科技有限公司 | Tail gas treatment method and system in polycrystalline silicon production |
| CN118286848A (en) * | 2024-06-04 | 2024-07-05 | 潍坊佰尼菲特生物科技有限公司 | Waste gas spraying and neutralizing system for artificial cell membrane preparation |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001116235A (en) * | 1999-10-15 | 2001-04-27 | Asahi Eng Co Ltd | Waste liquid-incinerating device |
| CN102679361A (en) * | 2012-05-08 | 2012-09-19 | 北京航天动力研究所 | Sulfur-containing and salt-containing organic waste liquid and waste gas pollution-free treatment device and method |
| CN103292332A (en) * | 2013-05-27 | 2013-09-11 | 北京航天动力研究所 | Negative-pressure incineration disposal system and negative-pressure incineration disposal method for fluorine-containing organic waste liquid and exhaust gas |
| CN104879758A (en) * | 2015-05-12 | 2015-09-02 | 靖江格兰石化设备有限公司 | Accident treatment system |
-
2019
- 2019-06-27 CN CN201910570518.1A patent/CN110345496A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001116235A (en) * | 1999-10-15 | 2001-04-27 | Asahi Eng Co Ltd | Waste liquid-incinerating device |
| CN102679361A (en) * | 2012-05-08 | 2012-09-19 | 北京航天动力研究所 | Sulfur-containing and salt-containing organic waste liquid and waste gas pollution-free treatment device and method |
| CN103292332A (en) * | 2013-05-27 | 2013-09-11 | 北京航天动力研究所 | Negative-pressure incineration disposal system and negative-pressure incineration disposal method for fluorine-containing organic waste liquid and exhaust gas |
| CN104879758A (en) * | 2015-05-12 | 2015-09-02 | 靖江格兰石化设备有限公司 | Accident treatment system |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113117442A (en) * | 2020-01-10 | 2021-07-16 | 新疆新特晶体硅高科技有限公司 | Tail gas treatment method and system in polycrystalline silicon production |
| CN112933946A (en) * | 2021-02-19 | 2021-06-11 | 陈洪超 | Deacidification treatment device for incineration tail gas |
| CN118286848A (en) * | 2024-06-04 | 2024-07-05 | 潍坊佰尼菲特生物科技有限公司 | Waste gas spraying and neutralizing system for artificial cell membrane preparation |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110345496A (en) | A kind of chemical waste liquid burned waste gas processing system | |
| CN104676606B (en) | Innocent treatment method for acrylic acid and ester waste liquid thereof | |
| CN102644922B (en) | Incineration treatment device for nitrogen-containing organic wastes and incineration treatment process | |
| JP6232134B2 (en) | Method and apparatus for exhaust gas waste heat recovery and white smoke reduction | |
| CN109297037A (en) | A kind of environment-friendly type resource utilization system of organic exhaust gas containing chlorine | |
| CN104359113B (en) | A kind of waste gas, liquid waste incineration system and method | |
| CN102889602B (en) | High-concentration salt bearing liquid waste incinerator and high-concentration salt bearing liquid waste treatment method | |
| CN106031841A (en) | Denitration technology and equipment for gas | |
| CN101825285B (en) | Burning treatment method and device for organic waste water containing salt | |
| CN102757148A (en) | System and method for processing waste gas and waste liquor in polysilicon production | |
| CN102865583B (en) | Device and method for saline organic wastewater immersed incineration quenching treatment | |
| CN107559837A (en) | A kind of method of chloride waste liquid, burned waste gas and vent gas treatment | |
| CN106178899A (en) | Compound dioxygen oxidation and denitration process and device | |
| CN211260830U (en) | High-salt-content chlorine-containing organic waste liquid zero-emission resource utilization system | |
| CN111006226A (en) | Incineration treatment system and incineration treatment method for chlorine-containing waste gas and waste liquid | |
| CN202660564U (en) | Device for incinerating high concentration salt-contained waste liquid | |
| CN110360577A (en) | A kind of processing system of liquid waste incineration containing chlorine | |
| CN110425548A (en) | Chemical industry saliferous raffinate incineration system and its burning process | |
| CN110081445A (en) | A kind of liquid hazardous waste burn system and its burning process | |
| CN112664959B (en) | Equipment for incineration treatment of ammonium sulfate-containing waste liquid and resource utilization | |
| CN209341270U (en) | A kind of environment-friendly type resource utilization system of organic exhaust gas containing chlorine | |
| CN210398941U (en) | Chlorine-containing waste liquid incineration disposal system | |
| CN104132352A (en) | Biochemical waste gas treatment system | |
| CN209362216U (en) | A kind of refractory material exhaust gas comprehensive treatment system | |
| CN208542022U (en) | Incineration flue gas non-catalytic reduction denitrating system based on high concentration reducing agent |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20191018 |
|
| RJ01 | Rejection of invention patent application after publication |