CN106178892A - Exhaust gas treating method and system are reclaimed in a kind of enamel-covered wire pyrolysis - Google Patents
Exhaust gas treating method and system are reclaimed in a kind of enamel-covered wire pyrolysis Download PDFInfo
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- CN106178892A CN106178892A CN201610719609.3A CN201610719609A CN106178892A CN 106178892 A CN106178892 A CN 106178892A CN 201610719609 A CN201610719609 A CN 201610719609A CN 106178892 A CN106178892 A CN 106178892A
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- gas
- enamel
- reclaimed
- covered wire
- pyrolysis
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- 238000000034 method Methods 0.000 title claims abstract description 73
- 238000000197 pyrolysis Methods 0.000 title claims abstract description 53
- 239000007789 gas Substances 0.000 claims abstract description 154
- 239000007921 spray Substances 0.000 claims abstract description 50
- 239000003546 flue gas Substances 0.000 claims abstract description 43
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 42
- 239000000428 dust Substances 0.000 claims abstract description 34
- 238000012545 processing Methods 0.000 claims abstract description 30
- 238000005406 washing Methods 0.000 claims abstract description 23
- 238000001179 sorption measurement Methods 0.000 claims abstract description 21
- 238000010791 quenching Methods 0.000 claims abstract description 16
- 230000000171 quenching effect Effects 0.000 claims abstract description 16
- 239000000463 material Substances 0.000 claims abstract description 13
- 239000000203 mixture Substances 0.000 claims abstract description 12
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 46
- 239000003513 alkali Substances 0.000 claims description 27
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 claims description 24
- 239000000920 calcium hydroxide Substances 0.000 claims description 24
- 229910001861 calcium hydroxide Inorganic materials 0.000 claims description 24
- 235000011116 calcium hydroxide Nutrition 0.000 claims description 24
- 239000003610 charcoal Substances 0.000 claims description 22
- 238000001816 cooling Methods 0.000 claims description 19
- 230000001706 oxygenating effect Effects 0.000 claims description 14
- 235000019738 Limestone Nutrition 0.000 claims description 13
- 239000004744 fabric Substances 0.000 claims description 13
- 239000006028 limestone Substances 0.000 claims description 13
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 claims description 12
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 12
- 238000003860 storage Methods 0.000 claims description 11
- 238000002485 combustion reaction Methods 0.000 claims description 9
- 239000000779 smoke Substances 0.000 claims description 9
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims description 7
- 239000003463 adsorbent Substances 0.000 claims description 6
- 238000005276 aerator Methods 0.000 claims description 6
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 6
- 239000001301 oxygen Substances 0.000 claims description 6
- 229910052760 oxygen Inorganic materials 0.000 claims description 6
- 239000002245 particle Substances 0.000 claims description 6
- 238000005507 spraying Methods 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 238000000889 atomisation Methods 0.000 claims description 5
- 239000007788 liquid Substances 0.000 claims description 5
- 239000000567 combustion gas Substances 0.000 claims description 4
- 239000002737 fuel gas Substances 0.000 claims description 4
- 239000002253 acid Substances 0.000 claims description 3
- 239000007864 aqueous solution Substances 0.000 claims description 3
- 239000004615 ingredient Substances 0.000 claims description 3
- 238000002156 mixing Methods 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 238000010438 heat treatment Methods 0.000 claims description 2
- 230000008676 import Effects 0.000 claims description 2
- 230000000153 supplemental effect Effects 0.000 claims description 2
- 238000010009 beating Methods 0.000 claims 1
- 230000002378 acidificating effect Effects 0.000 abstract description 5
- 238000005516 engineering process Methods 0.000 abstract description 5
- 238000001914 filtration Methods 0.000 abstract description 4
- 230000000903 blocking effect Effects 0.000 abstract description 3
- 238000004140 cleaning Methods 0.000 abstract description 2
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 12
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 12
- 230000007613 environmental effect Effects 0.000 description 8
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 7
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 4
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 4
- 229910052802 copper Inorganic materials 0.000 description 4
- 239000010949 copper Substances 0.000 description 4
- 239000003344 environmental pollutant Substances 0.000 description 4
- IXCSERBJSXMMFS-UHFFFAOYSA-N hydrogen chloride Substances Cl.Cl IXCSERBJSXMMFS-UHFFFAOYSA-N 0.000 description 4
- 229910000041 hydrogen chloride Inorganic materials 0.000 description 4
- 231100000719 pollutant Toxicity 0.000 description 4
- 238000011084 recovery Methods 0.000 description 4
- 238000001514 detection method Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000003345 natural gas Substances 0.000 description 3
- 230000003647 oxidation Effects 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- 210000002784 stomach Anatomy 0.000 description 3
- 239000008096 xylene Substances 0.000 description 3
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 2
- 230000003321 amplification Effects 0.000 description 2
- 239000011575 calcium Substances 0.000 description 2
- 229910052791 calcium Inorganic materials 0.000 description 2
- 235000019504 cigarettes Nutrition 0.000 description 2
- 238000009841 combustion method Methods 0.000 description 2
- 238000002425 crystallisation Methods 0.000 description 2
- 230000008025 crystallization Effects 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 2
- 238000003199 nucleic acid amplification method Methods 0.000 description 2
- 239000003973 paint Substances 0.000 description 2
- 239000011819 refractory material Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 239000004071 soot Substances 0.000 description 2
- 230000001988 toxicity Effects 0.000 description 2
- 231100000419 toxicity Toxicity 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 238000009834 vaporization Methods 0.000 description 2
- 230000008016 vaporization Effects 0.000 description 2
- 238000004056 waste incineration Methods 0.000 description 2
- 206010001488 Aggression Diseases 0.000 description 1
- -1 Amide imide Chemical class 0.000 description 1
- 206010033307 Overweight Diseases 0.000 description 1
- 239000004642 Polyimide Substances 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000004308 accommodation Effects 0.000 description 1
- DHKHKXVYLBGOIT-UHFFFAOYSA-N acetaldehyde Diethyl Acetal Natural products CCOC(C)OCC DHKHKXVYLBGOIT-UHFFFAOYSA-N 0.000 description 1
- 125000002777 acetyl group Chemical class [H]C([H])([H])C(*)=O 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 238000007630 basic procedure Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 150000001896 cresols Chemical class 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 210000003298 dental enamel Anatomy 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 239000000686 essence Substances 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 239000003500 flue dust Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 235000020825 overweight Nutrition 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 239000013618 particulate matter Substances 0.000 description 1
- 229920003055 poly(ester-imide) Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000011257 shell material Substances 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- 239000002912 waste gas Substances 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
- B01D53/02—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
- B01D53/06—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 moving adsorbents, e.g. rotating beds
- B01D53/10—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 moving adsorbents, e.g. rotating beds with dispersed adsorbents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/02—Particle separators, e.g. dust precipitators, having hollow filters made of flexible material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/02—Particle separators, e.g. dust precipitators, having hollow filters made of flexible material
- B01D46/04—Cleaning filters
-
- 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
- B01D53/38—Removing components of undefined structure
- B01D53/40—Acidic 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
- B01D53/34—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
- F23G7/06—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
- B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
- B01D2253/10—Inorganic adsorbents
- B01D2253/102—Carbon
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
- B01D2253/10—Inorganic adsorbents
- B01D2253/112—Metals or metal compounds not provided for in B01D2253/104 or B01D2253/106
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Dispersion Chemistry (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Treating Waste Gases (AREA)
Abstract
The present invention relates to exhaust emissions processing technology field, disclose a kind of enamel-covered wire pyrolysis and reclaim exhaust gas treating method and system, described method specifically, sequentially pass through burn processing, quenching, adsorption treatment, dust removal process, spray washing process by the tail gas that enamel-covered wire pyrolysis is reclaimed；Two English in tail gas are by the most fully burning, the processing procedure of chilling, decomposed up hill and dale, and inhibit its secondary to generate, will not be produced and in discharge process because process is the most thorough at continuous tail gas, cause two English constantly to accumulate during vent gas treatment, cause discharge to exceed standard；Flue gas after chilling is through adsorption treatment, further two English remained in flue gas and acidic materials are adsorbed, spray washing processing procedure again after flue gas elder generation dedusting after adsorption treatment, avoid the cleaning mixture that first spray washing dedusting again brings and may bring cleaner unit into flue gas, the problem easily blocking dust-filtering hole.
Description
Technical field
The present invention relates to exhaust emissions processing technology field, particularly relate to a kind of enamel-covered wire pyrolysis and reclaim vent gas treatment side
Method.
Background technology
Enamel-covered wire remanufacture reclaimed copper accounts for the proportion of China's copper production to be increased, day by day to pollutant emission in removal process
Process be the most increasingly subject to people's attention.The kind of wire enamel mainly has acetal, polyurethane, polyester, polyester-imide, gathers
Amide imide, polyimides etc., one-level or two grades of toxic solvents such as cresols to be used, dimethylbenzene during production.State at present
What the recovery of interior enamel-covered wire was widely used is direct burning method, carries out enamel-covered wire burning in pyrolysis removal process, will produce in a large number
The soot dust granule things such as the white carbon black of incomplete combustion, tar and the harmful gas such as benzene,toluene,xylene, hydrogen chloride, and two
English class violent in toxicity, causes severe contamination to environment.National standard " dangerous waste incineration Environmental capacity standard " (GB 18484-
2001) atmospheric emission standard specifying two English is≤0.5ng TEQ/m3；Within 2015, promulgated national standard " reclaimed copper, aluminum,
Lead, Zn Cr coating pollutant emission standard " (GB 31574-2015) Press release, the discharge to harmful gas and two English proposes
Higher requirement, the enamel-covered wire of development energy-conserving and environment-protective reclaims tail gas disposal technique has become trend of the times.
Enamel-covered wire can complete depainting by pyrolysis, then is reclaimed by cooling zone, and produced waste gas is typically selected directly
Connect oxidative combustion, i.e. by directly discharging after lighting process.Oxidation operation in flue gas can be divided by such processing mode
Solving is CO2, H2O, but processes excessively simple, and soot dust granule thing, tar, harmful gas and the volatile matter of wherein most have been difficult to
Full burning, particulate matter processes without filtration, collection, is still discharged in air.It addition, two English class violents in toxicity also without
Reactive absorption or prevent secondary generation from processing, impacts equally to environment.
In nearest scheme, disclose the tail gas disposal technique that the pyrolysis of a kind of copper scrap enamel-covered wire is reclaimed, fire including tail gas
Burning, wash, neutralize and the step such as absorption, high treating effect, safety is high, solves a series of of direct oxidation combustion method and asks
Topic.But for the pyrolysis recovery technology of continuous way enamel-covered wire, tail gas need to carry out long-time discharge continuously, and discharge capacity is big, discharge effect
Fruit easily accumulates amplification, particularly discharge capacity is required two higher English class materials, needs to carry out in vent gas treatment flow process
Clear up thoroughly continuously, it is therefore necessary to exploitation meets the technique of such technology and the exhaust gas treating method of device requirement, makes tail
Gas discharge reaches the environmental protection standard of national regulation.
Summary of the invention
(1) to solve the technical problem that
It is an object of the invention to provide a kind of enamel-covered wire pyrolysis and reclaim exhaust gas treating method and system, to solve continuous way paint
The problem that in envelope curve pyrolytic process exhaust emissions amount is big, emission effect easily accumulates amplification.
(2) technical scheme
In order to solve above-mentioned technical problem, the present invention provides a kind of enamel-covered wire pyrolysis to reclaim exhaust gas treating method, by enamel-cover
The tail gas that line pyrolysis is reclaimed sequentially passes through burn processing, quenching, adsorption treatment, dust removal process, spray washing process；
The tail gas reclaimed fully is burnt by described burn processing,
The flue gas formed after burn processing is cooled down by described quenching rapidly,
Remnants bis-English in flue gas after cooling rapidly is adsorbed by described adsorption treatment,
The fine solid particle being detained in tail gas will be filtered by described dust removal process,
Described spray washing processes for absorbing soluble gas remaining in flue gas after removing dust processes.
Further, described burn processing is specifically, suck the tail gas that enamel-covered wire pyrolysis is reclaimed continuously by wind collector
In combustor, and in combustor, it is continually fed into imflammable gas and the oxygenating air for supplemental oxygen.
Further, described quenching is that the formation flue gas after burning is cooled down by alkali liquor rapidly that use atomization.
Further, described adsorption treatment specifically uses the mixture of activated carbon and slaked lime to the cigarette after cooling rapidly
Remnants bis-English in gas adsorbs, and is neutralized acid ingredient remaining in flue gas simultaneously.
Further, temperature during described burn processing is 600～1200 DEG C, and described oxygenating air uses at burning in advance
Cooling down smoke pre-heating before treatment after reason, the temperature after described oxygenating air preheat is not less than 100 DEG C；
The suction flow velocity of the tail gas that the pyrolysis of described enamel-covered wire is reclaimed is 50～500m3/ h, the blast of described wind collector is 500
～5000Pa, the flow velocity that is passed through of described imflammable gas is 2～20m3/ h, described oxygenating air be passed through flow velocity be 40～
400m3/ h, the tail gas that the pyrolysis of described enamel-covered wire the is reclaimed time of staying in described combustor is not less than 2s.
Further, the alkali liquor of described quenching is the aqueous solution of sodium hydroxide or potassium hydroxide, described alkali liquor dense
Degree is 0.1～10wt.%；
After described quenching, the temperature of flue gas is not more than 200 DEG C.
Further, described adsorption treatment is specifically, pass through high pressure by the dry dust mixture of activated carbon and slaked lime
Blower fan sprays in the venturi dry type reactor of belt cleaner unit, the flue gas after chilling through venturi dry type reactor, and with
Activated carbon in venturi dry type reactor and slaked lime mixing；
The straying quatity of described activated carbon and slaked lime is 0.4～8kg/h, the air output of described high pressure positive blower be 5～
100m3/h。
Further, described dust removal process specifically, flue gas after carrying out adsorption treatment enters pulsed sack cleaner,
Through the dust particale of described pulsed sack cleaner arrested particles size >=1 μm, wherein, in described pulsed sack cleaner
Being provided with the Rapping apparatus shaking cloth bag, the frequency that shakes of described Rapping apparatus is 5～60min/ time.
Further, the water loss that described spray washing processes is 20～240kg/h；
Flue-gas temperature after described spray washing processes is not more than 100 DEG C.
For solving above-mentioned technical problem, another aspect of the present invention provides a kind of enamel-covered wire pyrolysis to reclaim vent gas treatment system
System, including the combustor arranged along exhaust gas flow direction successively, chilling tower, bag-type dust collector, spray scrubber, wherein, described combustion
Burn room and include the inlet exhaust gas being connected with exhaust collection pipeline, for the air intlet of combustion air entrance, for providing combustion gas
Fuel gas inlet and burning after exhanst gas outlet, described exhanst gas outlet is by the first exhaust gases passes and described chilling tower even
Logical, spray into the spray assembly of alkali liquor in described chilling tower arranges oriented described chilling tower, described chilling tower removes with described cloth bag
Dirt device is connected by the second exhaust gases passes, described second exhaust gases passes is provided with for spraying in described second exhaust gases passes
Penetrate the charcoal Calx adsorbent equipment of activated carbon and slaked lime；
Described air intlet connects hot-air duct, is provided with air preheater in described first exhaust gases passes, described
Hot-air duct is connected with the air outlet slit of described air preheater, and the air intake of described air preheater is provided with the external world
The aerator of air into air pipeline；
Described charcoal Calx adsorbent equipment includes high pressure positive blower, charcoal pulverized limestone storage tank and venturi dry type reactor, described literary composition
In mound, dry type reactor is arranged on described second exhaust gases passes, and described high pressure positive blower is for by the activity in charcoal pulverized limestone storage tank
Charcoal and slaked lime introduce in described venturi dry type reactor, and described charcoal pulverized limestone storage tank is provided with the vibrations dress preventing material from crystallizing
Putting, the interlude that shakes of described shaking device is 5～30min；
Being provided with thermocouple on the sidewall of described combustor, described combustor is connected with described thermocouple signal.
(3) beneficial effect
Exhaust gas treating method is reclaimed in a kind of enamel-covered wire pyrolysis that the present invention provides, and tail gas enamel-covered wire pyrolysis reclaimed is successively
Discharge again after burn processing, quenching, adsorption treatment, dust removal process, spray washing process；In tail gas two
English, by the most fully burning, the processing procedure of chilling, is decomposed up hill and dale, and inhibits its secondary to generate, Bu Hui
Tail gas produces and not thorough because processing in discharge process continuously, causes two English constantly to accumulate during vent gas treatment, causes
Discharge exceeds standard；Two English remained in flue gas and acidic materials, through adsorption treatment, are carried out by flue gas after chilling further
Absorption, spray washing processing procedure again after the flue gas elder generation dedusting after adsorption treatment, it is to avoid the dedusting again of first spray washing brings
Cleaning mixture may bring cleaner unit into flue gas, the problem easily blocking dust-filtering hole.
It is rationally reliable that exhaust gas treating method is reclaimed in the enamel-covered wire pyrolysis that the present invention provides, and the Continuous Heat adapting to enamel-covered wire is freed
Paint volume production process, the tail gas after process is fully able to reach the environmental protection standard of national regulation.
Accompanying drawing explanation
Fig. 1 is the flow chart that exhaust gas treating method is reclaimed in the pyrolysis of embodiment of the present invention enamel-covered wire；
Fig. 2 reclaims the schematic diagram of the processing system that exhaust gas treating method is used by the pyrolysis of embodiment of the present invention enamel-covered wire.
In figure, 1, exhaust collection pipeline；2, combustor；3, combustor；4, air-flue gas heat-exchange unit；5, extraneous blast pipe；
6, aerator；7, chilling tower；8, chilling pump；9, twin spray gun；10, charcoal pulverized limestone storage tank；11, high pressure positive blower；12, literary composition
Dry type reactor in mound；13, bag-type dust collector；14, spray scrubber；15, auxiliary device；16, the first exhaust gases passes；17、
Second exhaust gases passes；18. hot-air ducts.
Detailed description of the invention
Below in conjunction with the accompanying drawings and embodiment, the detailed description of the invention of the present invention is described in further detail.Following instance
For the present invention is described, but it is not limited to the scope of the present invention.
In describing the invention, it should be noted that unless otherwise clearly defined and limited, term " is installed ", " phase
Even ", " connection " should be interpreted broadly, for example, it may be fixing connection, it is also possible to be to removably connect, or be integrally connected；Can
To be mechanical connection, it is also possible to be electrical connection；Can be to be joined directly together, it is also possible to be indirectly connected to by intermediary, Ke Yishi
The connection of two element internals.For the ordinary skill in the art, can understand that above-mentioned term is at this with concrete condition
Concrete meaning in invention.
As in figure 2 it is shown, the pyrolysis of the present embodiment one enamel-covered wire reclaims exhaust treatment system, including the flow direction along flue gas
The combustor 2 that sets gradually, chilling tower 7, bag-type dust collector 13, spray scrubber 14, wherein, described combustor 2 includes tail
Gas import, for combustion air enter air intlet, for provide combustion gas fuel gas inlet and burning after exhanst gas outlet,
Described inlet exhaust gas is connected with by exhaust collection pipeline 1, and air intlet is connected with hot-air duct 18, and fuel gas inlet is arranged
Being provided with the combustor 3 of combustion gas, described exhanst gas outlet is connected with described chilling tower 7 by the first exhaust gases passes, described chilling tower 7
On oriented described chilling tower 7 is set in spray into the spray assembly of alkali liquor, described chilling tower 7 leads to described bag-type dust collector 13
Cross the second exhaust gases passes 17 to connect, described second exhaust gases passes 17 is provided with for spraying in described second exhaust gases passes 17
The charcoal Calx adsorbent equipment of activated carbon and slaked lime.It is provided with air preheater 4, described heat in described first exhaust gases passes 16
Air line 18 is connected with the air outlet slit of described air preheater 4, and the air intlet of described air preheater 4 connects the external world
Blast pipe 5, and extraneous blast pipe pipe connects and has aerator 6, outside air is introduced in described air preheater 4 by aerator 6.
Air preheater 4 is set in the first exhaust gases passes 16, both can preheat the oxygenating air entering combustor 2, and subtract
The consumption of few combustor 2 fuel, air preheater 4 also corresponds to a heat exchanger simultaneously, can play the flue gas after burning
The effect of cooling.The most in actual applications, the heat exchange area of air preheater 4 is 50～50m2, shell material is that Q235+ is resistance to
Fire castable, the material of the first exhaust gases passes is 2520 heat resisting steel.
The inner side of combustor 2 is refractory masses, and according to the ignition temperature of general tail gas, the thickness of refractory material can be
100～500mm, for being typically pyrolyzed tail gas recycle, the combustor dischargeable capacity of employing can be 0.3～5m3, hot-air uses ring
The tangential form of shape mends wind in combustor, it is ensured that has the oxygen of abundance during exhaust combustion, makes the organic principles such as two English obtain
To complete combustive destruction.Currently preferred thermocouple can be set on the sidewall of combustor 2, and by thermocouple and combustor
3 is chain by temperature signal, is automatically adjusted natural gas size, temperature in long-time maintenance combustor 2, it is ensured that high-volume continuously
Exhaust combustion processes.
Described spray assembly is twin spray gun 9, and described twin spray gun 9 includes double-deck clamp and is arranged on
The nozzle head of double-deck clamp end, the inlet of described spray assembly is connected by the pressurization chilling pump 8 of pipeline with conveying alkali liquor.
Chilling tower 7 uses the spray mode that directly cools down of alkali liquor, flow through the flue gas in chilling tower 7 directly be atomized after the liquid that sprays into connect
Touching, mass transfer and heat transfer rate are fast, and the alkali liquor rapid vaporization sprayed into takes away substantial amounts of heat, makes cloth bag inlet exhaust gas temperature drop rapidly
To about 200 DEG C, and ensure tail gas quenching time≤1s, thus avoid two English class materials 250～500 DEG C of temperature ranges
Again generate.Exhaust temperature can be regulated by the alkali liquor emitted dose of chilling tower, and range of accommodation is 20～200kg/h.Chilling tower
Overall dimensions is Φ 300～1500 × 1000～5000, can realize the most large-scale tail gas quenching.Twin spray gun 9
Having compressed alkali liquor atomization by air, its structure is Double-layer clamp sleeve pipe, and alkali liquor walks inner tube, and compressed air walks outer tube, serosity and pressure
Contracting air sprays from nozzle after strongly mixing at nozzle head, so that slurry spraying is fine particle, contacts with tail gas
Cooling；Compressed air consumption is 10～100m3/ h, alkali liquor described in chilling tower is the aqueous solution of sodium hydroxide or potassium hydroxide,
The concentration of described alkali liquor is 0.1～10wt.%.
Simultaneously for ensureing that spraying into the alkali liquor in chilling tower 7 evaporates completely, prevents alkali liquor from gluing wall and wall erosion, cooling tower is excellent
Selection of land use double-decker, be corrosion-resistant high-temperature refractory material with the internal layer of tail gas contact surface namely cooling tower, thickness be 100～
500mm。
As in figure 2 it is shown, embodiment charcoal Calx adsorbent equipment includes high pressure positive blower 11, charcoal pulverized limestone storage tank 10 and venturi
Dry type reactor 12, described venturi dry type reactor 12 is arranged on described second exhaust gases passes 17, described high pressure positive blower 11
For the activated carbon in charcoal pulverized limestone storage tank 10 and slaked lime are introduced in described venturi dry type reactor 12.
The pressure-air that activated carbon in charcoal pulverized limestone and slaked lime are introduced by high pressure positive blower 11 respectively carries constantly
In venturi dry type reactor 12 before bag-type dust collector 13, through reactor throat, gas velocity increases, and produces
Raw high turbulence, makes tail gas be fully contacted with charcoal pulverized limestone.At low temperatures (≤200 DEG C), two English class materials are the most active
Charcoal adsorbs.After contact, two English of the most incompletely processed a small amount of residual are fully absorbed, it is achieved the of two English
Double removal；Slaked lime is then neutralized absorption and processes the acidic materials in tail gas.
In order to prevent the material of charcoal pulverized limestone storage tank 10 from crystallizing, the present embodiment charcoal pulverized limestone storage tank 10 is provided with shaking device,
Shaking frequency is 5～30min to shake once.
The sack cleaner reclaiming exhaust treatment system as the pyrolysis of a kind of preferred version the present embodiment enamel-covered wire can select
In the pulsed sack cleaner using PTFE material to make, and pulsed sack cleaner, Rapping apparatus is installed, preferably
Total filter area of pulsed sack cleaner is 4～40m2, and pulse valve quantity is 2～10, arrested particles size >=1 μm
(namely space ＜ 1 μm of cloth bag), dust remover resistance≤1.5kPa, cloth bag total number is 10～100, and cloth bag is by shaking dress
Put every 5～60min and shake once, prevent the crystallization of dust stomach wall and reunite.
It is to use the pyrolysis of above-mentioned enamel-covered wire to reclaim tail that exhaust gas treating method is reclaimed in the pyrolysis of embodiment of the present invention one enamel-covered wire
Gas processing system realizes, as it is shown in figure 1, described method is particularly as follows: sequentially pass through burning by the tail gas that enamel-covered wire pyrolysis is reclaimed
Process, quenching, adsorption treatment, dust removal process, spray washing process；Wherein, the tail gas reclaimed is filled by burn processing
Divided combustion, described quenching is that the flue gas after burning is cooled down by alkali liquor rapidly that use atomization, and described adsorption treatment is adopted
With the mixture of activated carbon and slaked lime, remnants bis-English in the flue gas after cooling rapidly and acid ingredient are adsorbed
Processing, the fine solid particle being detained in tail gas, slaked lime and activated carbon are filtered by described dust removal process, at described spray washing
Reason is for absorbing the soluble gas in flue gas after adsorption treatment.
Exhaust gas treating method is reclaimed in the pyrolysis of the present embodiment enamel-covered wire, and two English in the tail gas in enamel-covered wire pyrolytic process lead to
Cross the most fully burning, the processing procedure of chilling, decomposed up hill and dale, and inhibit its secondary to generate, will not be continuously
Tail gas produces and not thorough because processing in discharge process, causes two English constantly to accumulate during vent gas treatment, causes discharge
Exceed standard；Two English remained in flue gas and acidic materials, through adsorption treatment, are adsorbed by flue gas after chilling further,
Spray washing processing procedure again after flue gas elder generation dedusting after adsorption treatment, it is to avoid the washing that the dedusting again of first spray washing brings
Liquid may bring cleaner unit into flue gas, the problem easily blocking dust-filtering hole.
Exhaust gas treating method is reclaimed in the pyrolysis of the present embodiment enamel-covered wire can use exhaust treatment system as shown in Figure 1, and excellent
That selects is provided with wind collector on exhaust collection pipeline, and the basic procedure of described exhaust collection is: start wind collector, by air vent
The tail gas discharged continuously sucks wind-collecting cover, then enter combustor by connecting the ventilation duct of wind-collecting cover, it is to avoid tail gas is to air
Middle discharge.Wherein, the exhaust temperature produced during collected continuous way enamel-covered wire pyrolysis depainting is 50-400 DEG C, wind collector
Exhaust collection amount be 50-500m3/ h, blast is 500-5000Pa.
Being passed through imflammable gas by combustor 3 in combustor, the flow of imflammable gas is 2-20m3/ h, passes through simultaneously
Air duct is passed through the oxygenating air of oxygen needed for aftercombustion in combustor, and oxygenating wind flow is 40-400m3/ h, makes tail
Combustible in gas fully burns under oxygen abundance environment, completes the burn processing of tail gas, wherein, in burning process,
Keep chamber temperature to be 600-1200 DEG C, the combustion-supporting gas flow that is passed through ensure tail gas combustor the time of staying >=
2s, makes two English sufficiently decompose.
The oxygenating air of wherein said aftercombustion oxygen is passed through burning after being preheated by the flue gas after burning again
Indoor, concrete process be outside air pass through aerator introduce air preheater, in air preheater with burning after cigarette
Gas enters in combustor after carrying out heat exchange.
The process that cooling processes can be by the spray assembly jet atomization in described cooling tower being arranged on cooling tower
Alkali liquor realize, concrete as in figure 2 it is shown, tail gas in cooling tower directly be atomized after the alkali liquor that sprays into contact, the alkali sprayed into
Liquid rapid vaporization takes away heat, reaches the purpose quickly cooled down.The alkali liquor used is the water-soluble of sodium hydroxide or potassium hydroxide
Liquid, concentration is 0.1～10wt.%.Alkali liquor sprays after carrying out supercharging by anticorrosive wear-resistant pump, and emitted dose is 30～300kg/h,
Exhaust temperature is made to be rapidly reduced to≤200 DEG C, it is to avoid the regeneration of two English.
As in figure 2 it is shown, the present embodiment enamel-covered wire pyrolysis reclaim exhaust gas treating method, the charcoal Calx used be activated carbon and
The dry dust mixture of slaked lime (calcium hydroxide), activated carbon and slaked lime spray into belt cleaner unit by high pressure positive blower respectively
Venturi dry type reactor in, acidic materials in removing flue gas also adsorb the two English class harmful substances that major part is remaining.
The emitted dose of activated carbon and slaked lime is 0.4～8kg/h, and high pressure positive blower air output is 5～100m3/h.
Spray washing process completed by spray scrubber, the tower overall dimensions of spray scrubber be Φ 0.1～1m × 1～
6m, the water yield of consumption is 20～240kg/h, by spray washing, flue gas exit temperature is reduced to≤100 DEG C after again flue gas is led to
Cross smoke stack emission.
It is given below and uses the pyrolysis of the present embodiment enamel-covered wire to reclaim the right of exhaust gas treating method and prior art processing method
Compare practical application example.
The practical solution one of the present embodiment enamel-covered wire pyrolysis recovery exhaust gas treating method:
The pyrolysis of continuous way enamel-covered wire is reclaimed the tail gas produced uses wind collector to be collected, and exhaust temperature is 105 DEG C, tail
Gas collecting amount is 200m3/h.By tail gas, by combustor, (dischargeable capacity is 1m3), heating-up temperature is 800 DEG C, is passed through natural gas flow
Amount is 4m3/ h, oxygenating air quantity is 80m3/ h, temperature is 100 DEG C.Through burning after tail gas enter cooling tower (size Φ 0.85m ×
3m), the alkali liquor emitted dose of cooling tower is 100kg/h, and exhaust temperature reduces rapidly, and the venturi subsequently entering sack cleaner is done
Formula reactor, during sprayed into the dry dust mixture of activated carbon and calcium hydroxide, activated carbon and hydroxide by high pressure positive blower
The emitted dose of calcium is 2kg/h, and blower fan air output is 20m3/h.Tail gas passes through pulsed cloth bag subsequently, and cloth bag number is 30,
The gross area is 15m2, pulse valve quantity is 6, and cloth bag shakes once by the every 20min of Rapping apparatus, prevents dust stomach wall from crystallizing
And reunion.Tail gas after bag-type dust enters spray scrubber (a size of Φ 0.6m × 3m), and the water yield of consumption is 100kg/
h.By spray washing, tail gas is by high 25m, the smoke stack emission of diameter 0.16m.Tail gas is transferred to environmental protection relevant departments detect,
In tail gas, smoke content is 35.12mg/m3, benzene content is 0.14mg/m3, toluene level is 0.04mg/m3, xylene content is
0.05mg/m3, hydrogen chloride content is 2.52mg/m3.Detecting department's detection through specialty, in tail gas, two English content are 0.017ng
TEQ/m3。
The practical solution two of the present embodiment enamel-covered wire pyrolysis recovery exhaust gas treating method:
The pyrolysis of continuous way enamel-covered wire is reclaimed the tail gas produced uses wind collector to be collected, and exhaust temperature is 141 DEG C, tail
Gas collecting amount is 300m3/h.By tail gas, by combustor, (dischargeable capacity is 1m3), heating-up temperature is 1100 DEG C, is passed through natural gas
Flow is 5m3/ h, oxygenating air quantity is 100m3/ h, temperature is 100 DEG C.Through burning after tail gas enter cooling tower (size Φ 0.85m ×
3m), the alkali liquor emitted dose of cooling tower is 120kg/h, and exhaust temperature reduces rapidly, and the venturi subsequently entering sack cleaner is done
Formula reactor, during sprayed into the dry dust mixture of activated carbon and calcium hydroxide, activated carbon and hydroxide by high pressure positive blower
The emitted dose of calcium is 2.5kg/h, and blower fan air output is 20m3/h.Tail gas passes through pulsed cloth bag subsequently, and cloth bag number is 30
Bar, the gross area is 15m2, pulse valve quantity is 6, and cloth bag shakes once by the every 10min of Rapping apparatus, prevents dust stomach wall
Crystallization and reunion.Tail gas after bag-type dust enters spray scrubber (a size of Φ 0.6m × 3m), and the water yield of consumption is
120kg/h.By spray washing, tail gas is by high 25m, the smoke stack emission of diameter 0.16m.Tail gas is carried out by environmental protection relevant departments
Detection, in tail gas, smoke content is 11.24mg/m3, benzene content is 0.06mg/m3, toluene level is 0.06mg/m3, hydrogen chloride contains
Amount is 0.35mg/m3, do not detect dimethylbenzene.Detecting department's detection through specialty, in tail gas, two English content are 0.005ng
TEQ/m3。
Contrast use prior art carry out enamel-covered wire pyrolysis reclaim vent gas treatment:
The pyrolysis of continuous way enamel-covered wire is reclaimed the tail gas produced directly light at offgas outlet, two produced after directly lighting
Secondary tail gas is detected by environmental protection relevant departments, and in tail gas, smoke content is 31966mg/m3, benzene content is 5462mg/m3, toluene
Content is 636.6mg/m3, xylene content is 20.98mg/m3, hydrogen chloride content is 3.78mg/m3.Department's inspection is detected through specialty
Surveying, in tail gas, two English content are 10.1ng TEQ/m3。
Through comparing, use the pyrolysis of the present embodiment enamel-covered wire to reclaim exhaust gas treating method and effectively control the row of exhaust pollutant
Putting, every discharge standard has reached People's Republic of China's environmental protection standard " dangerous waste incineration Environmental capacity standard " (GB
18484-2001) and, and use in the tail gas that direct oxidation combustion method processes and walk owing to lacking smoke catching, abundant burning etc.
Suddenly so that the pollutant severe overweights such as the flue dust in secondary tail gas.Step is processed owing to lacking two English of high temperature pyrolysis chilling
Suddenly, two English discharges there is also situation about exceeding standard.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all essences in the present invention
Within god and principle, any modification, equivalent substitution and improvement etc. made, should be included within the scope of the present invention.
Claims (10)
1. exhaust gas treating method is reclaimed in an enamel-covered wire pyrolysis, it is characterised in that the tail gas warp successively enamel-covered wire pyrolysis reclaimed
Cross burn processing, quenching, adsorption treatment, dust removal process, spray washing process；
The tail gas reclaimed fully is burnt by described burn processing,
The flue gas formed after burn processing is cooled down by described quenching rapidly,
Remnants bis-English in flue gas after cooling rapidly is adsorbed by described adsorption treatment,
The fine solid particle being detained in tail gas will be filtered by described dust removal process,
Described spray washing processes for absorbing soluble gas remaining in flue gas after removing dust processes.
2. exhaust gas treating method is reclaimed in enamel-covered wire pyrolysis as claimed in claim 1, it is characterised in that described burn processing is concrete
For, the tail gas that enamel-covered wire pyrolysis is reclaimed is sucked in combustor continuously by wind collector, and is continually fed into flammable in combustor
Property gas and for the oxygenating air of supplemental oxygen.
3. exhaust gas treating method is reclaimed in enamel-covered wire pyrolysis as claimed in claim 1, it is characterised in that described quenching is to adopt
With the alkali liquor of atomization, the formation flue gas after burning is cooled down rapidly.
4. exhaust gas treating method is reclaimed in enamel-covered wire as claimed in claim 1 pyrolysis described in, it is characterised in that described adsorption treatment
Remnants bis-English in flue gas after cooling rapidly is adsorbed by the mixture specifically using activated carbon and slaked lime, and with
Time acid ingredient remaining in flue gas is neutralized.
5. exhaust gas treating method is reclaimed in enamel-covered wire pyrolysis as claimed in claim 2, it is characterised in that during described burn processing
Temperature is 600～1200 DEG C, and described oxygenating air cools down smoke pre-heating before treatment, described oxygenating after using burn processing in advance
Temperature after air preheat is not less than 100 DEG C；
The suction flow velocity of the tail gas that the pyrolysis of described enamel-covered wire is reclaimed is 50～500m3/ h, the blast of described wind collector be 500～
5000Pa, the flow velocity that is passed through of described imflammable gas is 2～20m3/ h, the flow velocity that is passed through of described oxygenating air is 40～400m3/
H, the tail gas that the pyrolysis of described enamel-covered wire the is reclaimed time of staying in described combustor is not less than 2s.
6. exhaust gas treating method is reclaimed in enamel-covered wire pyrolysis as claimed in claim 3, it is characterised in that the alkali of described quenching
Liquid is the aqueous solution of sodium hydroxide or potassium hydroxide, and the concentration of described alkali liquor is 0.1～10wt.%；
After described quenching, the temperature of flue gas is not more than 200 DEG C.
7. exhaust gas treating method is reclaimed in enamel-covered wire pyrolysis as claimed in claim 4, it is characterised in that described adsorption treatment is concrete
For, the venturi dry type that the dry dust mixture of activated carbon and slaked lime sprays into belt cleaner unit by high pressure positive blower is reacted
In device, the flue gas after chilling through venturi dry type reactor, and with the activated carbon in venturi dry type reactor and slaked lime
Mixing；
The straying quatity of described activated carbon and slaked lime is 0.4～8kg/h, and the air output of described high pressure positive blower is 5～100m3/h。
8. exhaust gas treating method is reclaimed in enamel-covered wire pyrolysis as claimed in claim 1, it is characterised in that described dust removal process is concrete
For, carry out the flue gas after adsorption treatment and enter pulsed sack cleaner, through described pulsed sack cleaner arrested particles chi
The dust particale of very little >=1 μm, wherein, is provided with the Rapping apparatus shaking cloth bag, described shake in described pulsed sack cleaner
The frequency that shakes beating device is 5～60min/ time.
9. exhaust gas treating method is reclaimed in enamel-covered wire pyrolysis as claimed in claim 1, it is characterised in that described spray washing processes
Water loss be 20～240kg/h；
Flue-gas temperature after described spray washing processes is not more than 100 DEG C.
10. exhaust treatment system is reclaimed in an enamel-covered wire pyrolysis, it is characterised in that include the burning arranged successively along exhaust gas flow direction
Room, chilling tower, bag-type dust collector, spray scrubber, wherein, described combustor includes the tail gas being connected with exhaust collection pipeline
Import, for combustion air enter air intlet, for provide combustion gas fuel gas inlet and burning after exhanst gas outlet,
Described exhanst gas outlet is connected with described chilling tower by the first exhaust gases passes, described chilling tower is arranged in oriented described chilling tower
Spraying into the spray assembly of alkali liquor, described chilling tower is connected by the second exhaust gases passes with described bag-type dust collector, and described second
It is provided with on exhaust gases passes for spraying activated carbon and the charcoal Calx adsorbent equipment of slaked lime in described second exhaust gases passes；
Described air intlet connects hot-air duct, is provided with air preheater in described first exhaust gases passes, and described heat is empty
Feed channel is connected with the air outlet slit of described air preheater, and the air intake of described air preheater is provided with outside air
Introduce the aerator of air line；
Described charcoal Calx adsorbent equipment includes high pressure positive blower, charcoal pulverized limestone storage tank and venturi dry type reactor, described venturi
Dry type reactor is arranged on described second exhaust gases passes, described high pressure positive blower for by the activated carbon in charcoal pulverized limestone storage tank and
Slaked lime introduces in described venturi dry type reactor, and described charcoal pulverized limestone storage tank is provided with the shaking device preventing material from crystallizing,
The interlude that shakes of described shaking device is 5～30min；
Being provided with thermocouple on the sidewall of described combustor, described combustor is connected with described thermocouple signal.
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| CN109340769A (en) * | 2018-09-21 | 2019-02-15 | 湖南顶立科技有限公司 | The exhaust gas treating method and system of discarded circuit board pyrolysis |
| CN110585847A (en) * | 2019-08-16 | 2019-12-20 | 无锡雷顿电器有限公司 | Treatment method for controlling wet method to reduce concentration of dioxin and dust in industrial flue gas |
| CN110652825A (en) * | 2019-11-08 | 2020-01-07 | 广东佳德环保科技有限公司 | Removal system of dioxin in flue gas |
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| CN112815336B (en) * | 2020-12-31 | 2023-07-07 | 重庆长江造型材料（集团）股份有限公司 | Low-emission method for powder combustion |
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