CN109395538A - System and method for cleaning, environment-friendly collecting and treating asphalt smoke during unloading of liquid asphalt - Google Patents
System and method for cleaning, environment-friendly collecting and treating asphalt smoke during unloading of liquid asphalt Download PDFInfo
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- CN109395538A CN109395538A CN201811420070.7A CN201811420070A CN109395538A CN 109395538 A CN109395538 A CN 109395538A CN 201811420070 A CN201811420070 A CN 201811420070A CN 109395538 A CN109395538 A CN 109395538A
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- Prior art keywords
- flue gas
- bitumen
- pitch
- asphalt
- washing
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- 239000010426 asphalt Substances 0.000 title claims abstract description 92
- 239000007788 liquid Substances 0.000 title claims abstract description 46
- 238000004140 cleaning Methods 0.000 title claims abstract description 43
- 239000000779 smoke Substances 0.000 title claims abstract description 19
- 238000000034 method Methods 0.000 title abstract description 12
- 239000003546 flue gas Substances 0.000 claims abstract description 68
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 66
- 238000005406 washing Methods 0.000 claims abstract description 62
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 43
- 239000003513 alkali Substances 0.000 claims abstract description 23
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 21
- 238000003860 storage Methods 0.000 claims abstract description 17
- 238000012545 processing Methods 0.000 claims abstract description 10
- HEMHJVSKTPXQMS-UHFFFAOYSA-M sodium hydroxide Inorganic materials [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 48
- 230000007613 environmental effect Effects 0.000 claims description 19
- 239000007789 gas Substances 0.000 claims description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 9
- 231100000614 poison Toxicity 0.000 claims description 7
- 230000007096 poisonous effect Effects 0.000 claims description 7
- 230000000087 stabilizing effect Effects 0.000 claims description 7
- 239000004615 ingredient Substances 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 238000003672 processing method Methods 0.000 claims description 3
- 230000000630 rising effect Effects 0.000 claims description 3
- 238000012546 transfer Methods 0.000 claims description 3
- 231100000611 venom Toxicity 0.000 claims description 3
- 235000019504 cigarettes Nutrition 0.000 claims 1
- 229910001873 dinitrogen Inorganic materials 0.000 claims 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract description 3
- 229910052760 oxygen Inorganic materials 0.000 abstract description 3
- 239000001301 oxygen Substances 0.000 abstract description 3
- 230000001502 supplementing effect Effects 0.000 abstract 1
- 239000011295 pitch Substances 0.000 description 39
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 10
- 239000003245 coal Substances 0.000 description 7
- QGJOPFRUJISHPQ-UHFFFAOYSA-N Carbon disulfide Chemical compound S=C=S QGJOPFRUJISHPQ-UHFFFAOYSA-N 0.000 description 3
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 239000004215 Carbon black (E152) Substances 0.000 description 2
- 239000011294 coal tar pitch Substances 0.000 description 2
- 229930195733 hydrocarbon Natural products 0.000 description 2
- 150000002430 hydrocarbons Chemical class 0.000 description 2
- 208000005623 Carcinogenesis Diseases 0.000 description 1
- 201000009030 Carcinoma Diseases 0.000 description 1
- 206010058467 Lung neoplasm malignant Diseases 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 229940045348 brown mixture Drugs 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 230000036952 cancer formation Effects 0.000 description 1
- 231100000504 carcinogenesis Toxicity 0.000 description 1
- 239000003183 carcinogenic agent Substances 0.000 description 1
- 239000011300 coal pitch Substances 0.000 description 1
- 239000011280 coal tar Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000004939 coking Methods 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 231100001261 hazardous Toxicity 0.000 description 1
- 239000003317 industrial substance Substances 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 201000005202 lung cancer Diseases 0.000 description 1
- 208000020816 lung neoplasm Diseases 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 230000000505 pernicious effect Effects 0.000 description 1
- 239000002957 persistent organic pollutant Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 210000002345 respiratory system Anatomy 0.000 description 1
- 239000005060 rubber Substances 0.000 description 1
- 201000008157 scrotal carcinoma Diseases 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002699 waste material 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
- B01D53/14—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
- B01D53/14—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
-
- 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
- B01D53/60—Simultaneously removing sulfur oxides and nitrogen oxides
-
- 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
- B01D2258/00—Sources of waste gases
- B01D2258/02—Other waste gases
- B01D2258/0283—Flue gases
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 relates to a clean and environment-friendly asphalt smoke collecting and processing system and method during unloading of liquid asphalt, wherein a washing oil cleaning device consists of a smoke cleaner, an exhaust cleaning tower, a cleaning oil groove and a washing oil circulating pump, wherein a smoke inlet on the smoke cleaner is connected with a smoke outlet of an asphalt storage tank, and a smoke outlet of the exhaust cleaning tower is connected with a smoke inlet of an incinerator; the alkali washing device consists of an alkali liquor tank and an alkali washing exhaust tower, wherein the alkali liquor tank is provided with a flue gas inlet connected with a flue gas outlet of the incinerator. In the invention, asphalt smoke generated by the liquid asphalt unloading and storing system is comprehensively collected, absorbed, incinerated and alkali-washed, and finally, the cleaning treatment is realized, and the purpose of preventing the asphalt smoke from leaking and polluting the atmospheric environment is achieved; and nitrogen pressure supplementing unloading is adopted, so that direct contact between combustible components volatilized in the asphalt tank wagon and oxygen is avoided, and fire hazard is eliminated.
Description
Technical field
Bitumen flue gas clean and environmental protection is collected when unloading the present invention relates to environmental technology field more particularly to a kind of liquid bitumen
Processing system and method.
Background technique
The dark brown mixture that pitch is made of the hydrocarbon and their derivative of different molecular weight, the mixture are glutinous
Degree is high, and room temperature is in a liquid state, and dissolves in carbon disulfide.Divide by property, pitch can be mainly divided into coal tar pitch, asphalt and
Three kinds of bitumen.Wherein, coal tar pitch is the byproduct of coking, and asphalt is the residue after crude distillation, and is naturally dripped
Deposit that is green then be to be stored at underground, forming ore bed or formed on earth's crust surface.Currently, the commercial use of pitch is mainly concentrated
It is a kind of important industrial chemicals in industries such as coating, plastics, rubber, electrode and buildings.
During storage is with unloading, a large amount of low molecular weight hydrocarbon analog derivatives evaporate liquid bitumen, wherein existing drip
The solid and liquid particulate that green volatile component condenses into, and have the organic matter of vapor state, exact composition is relative complex.Pass through
Chromaticness on-line analysis can accurately detect wherein nearly 200 kinds of main organic pollutants.This kind of pollution based on condensed-nuclei aromatics
Object is largely hazardous to the human body, and has some or even has carcinogenesis to skin and respiratory system, if 3-4 BaP is strong carcinogenic
Substance.Long term investigation obtains: often in contact with the worker of coal tar and pitch, cutaneum carcinoma, carcinoma of scrotum, laryngocarcinoma and lung cancer morbidity rate are all
It is quite high.Therefore, it in liquid bitumen is stored and unloaded, takes appropriate measures, the pollution for preventing and treating glance coal is particularly important.
It is divided into no environmental protection measure currently, liquid bitumen is unloaded by tank car and there are two kinds of process flows of environmental protection measure, with
Society environmental requirement is gradually increased, the tank car of no environmental protection measure process of unloading will be phased out.There is environmental protection to arrange at present
The tank car applied mode of unloading is substantially as follows: time slot roof of unloading is opened wide, with the progress unloaded, produced by storage tank open top
Glance coal pneumatic transmission washed to flue gas washing column with washing oil, the exhaust after flue gas is cleaned is sent again to the thorough high temperature of incinerator and is burnt
It burns.The defect of the technique is: 1) time slot roof of unloading is opened wide, and with unloading for pitch, large quantity of air can be sucked in tank car,
And bitumen flue gas also can be diffused partially in atmosphere, be adversely affected to environment, and the security performance of tank car reduces；2) it drips
Though green flue gas elutes harmful substance by exhaust washing column, atmosphere is directly discharged into after incinerator burns, after incinerating in flue gas
Can also residual harmful substance, such as nitrogen oxides and sulfur dioxide have greater environmental impacts.
Summary of the invention
Bitumen flue gas clean and environmental protection collection processing system implementing and method, liquid when unloading the present invention provides a kind of liquid bitumen
Pitch unloads the bitumen flue gas generated with storage system through comprehensive collection, absorption, burning and alkali cleaning, finally realizes cleaning treatment,
Prevent the purpose of its leakage pollution atmospheric environment；Unloaded using nitrogen ftercompction, prevent Asphalt tank car volatilization inflammable constituent with
Oxygen directly contacts, and eliminates fire hazard.
In order to achieve the above object, the present invention is implemented with the following technical solutions:
Bitumen flue gas clean and environmental protection collection processing system implementing when liquid bitumen is unloaded, including the washing oil cleaning dress set gradually
It sets, incinerator and alkaline cleaner；The washing oil cleaning device is followed by flue gas washer, exhaust washing column, cleaning oil groove and washing oil
Ring pump group is at the top of cleaning oil groove and coupled logical respectively, cleaning oil is arranged in the flue gas washer, exhaust washing column
Slot is separately connected flue gas washer, exhaust washing column by washing oil circulating line, and washing oil circulating pump is set on washing oil circulating line；
Smoke inlet on the flue gas washer connects the exhanst gas outlet at the top of pitch storage tank by pipeline, is vented the top of washing column
If butterfly valve, top sets exhanst gas outlet and connects the smoke inlet of incinerator bottom by pipeline, and flue gas exhaust fan is set on the pipeline；
Butterfly valve is set at the top of incinerator, top sets exhanst gas outlet；Alkaline cleaner is made of lye tank (vat) and alkali cleaning discharge tower, and tower is discharged in alkali cleaning
Set on the top of lye tank (vat) and coupled logical, connected between lye tank (vat) and alkali cleaning discharge tower by lye circulating line, and alkali
NaOH solution circulating pump is set on liquid circulating line；Smoke inlet is set on lye tank (vat) to connect by the exhanst gas outlet of pipeline and incinerator, it should
Recirculated water heat-exchanger rig is set on pipeline, sets neat stress outlet at the top of alkali cleaning discharge tower.
Liquid bitumen feed inlet is set at the top of the pitch storage tank, is connect by liquid bitumen pipeline with pitch unloading arm, liquid
Pitch unloading pump and asphalt flow meter are set on state pitch pipeline, pitch unloading arm and the liquid bitumen of asphalt tank on pitch tank car go out
Mouth passes through flexible quick connector and connects；The top of asphalt tank connects nitrogen additional charge arm by flexible quick connector, and nitrogen is mended
It fills charging arm to connect with nitrogen inlet tube, pressure stabilizing direct-operated regulator after valve is set on nitrogen inlet tube.
Bitumen flue gas clean and environmental protection collection processing method when liquid bitumen based on the system is unloaded, including walk as follows
It is rapid:
1) the pitch tank car for loading liquid bitumen reaches place of unloading, and asphalt tank thereon passes through flexible quick connector and distinguishes
It is connect with nitrogen inlet tube, pitch unloading arm, pressure stabilizing direct-operated regulator can control drip after the valve being arranged on nitrogen inlet tube
Gas pressure in green tank is micro-positive pressure；Start pitch unloading pump, liquid bitumen is delivered in pitch storage tank through pitch unloading arm；
2) with the rising of liquid level in pitch storage tank, the bitumen flue gas on top is collected into flue gas washer, pitch
The washing oil that flue gas is sent in flue gas washer through washing oil circulating pump carries out primary wash, and the washing oil after washing returns to cleaning oil groove,
Bitumen flue gas, which enters in exhaust washing column, is removed in depth harmful poisonous object by the washing oil that washing oil circulating pump is sent, and washing oil is recycled
And it regularly replaces；
3) bitumen flue gas that most of harmful poisonous object is removed is from discharge at the top of exhaust washing column, by flue gas exhaust fan pair
Exhaust is pressurizeed, and is sent to incinerator and is thoroughly incinerated, to remove remaining venomous injurant；
4) also containing environmentally harmful ingredients such as NOX and SO2 in the bitumen flue gas after incinerating, the glance coal after burning
Gas enters alkaline bath after recirculated water exchanges heat, and exchanges in alkali cleaning discharge tower with the reverse mass transfer of sig water, thoroughly removes glance coal
NO in gasXAnd SO2, then neat stress is discharged into atmosphere.
Compared with prior art, the beneficial effects of the present invention are:
1) glance coal generated during capable of unloading liquid bitumen is all collected, and bitumen flue gas is absorbed through washing oil, burnt
Burn and alkali cleaning processing, eliminate conventional liquid pitch unload during often occur glance coal leakage and burn after flue gas according to
The drawbacks of so there are discharge of poisonous waste, pollutant approach zero-emission, improve the operating environment of production；
2) nitrogen compensation protection carried out to the tank car for loading liquid bitumen, pernicious gas when unloading in pitch tank car not to
It is discharged in air, has completely cut off the contact of liquid bitumen, bitumen flue gas with oxygen in pitch tank car, to eliminate pitch tank car
Fire and hidden peril of explosion；
3) process flow is simple, flexible operation, and can remove includes NO in bitumen flue gasXAnd SO2The overwhelming majority inside has
Malicious harmful substance is a kind of effective process system in increasingly strict current of environmental requirement.
Detailed description of the invention
Fig. 1 is the structural representation of bitumen flue gas clean and environmental protection collection processing system implementing when liquid bitumen of the present invention is unloaded
Figure.
In figure: 1. pitch tank car, 2. flexible quick connector, 3. pitch unloading arm, 4. asphalt flow meter, 5. pitch unloading pump
6. 8. pitch storage tank 9. of pressure stabilizing direct-operated regulator cleans 10. flue gas washer of oil groove after 7. valve of nitrogen additional charge arm
11. being vented 12. butterfly valve of washing column, 13. washing oil circulating pump, 14. flue gas exhaust fan, 15. incinerator, 16. flue gas condenser 17.
19. NaOH solution circulating pump of tower is discharged in 18. alkali cleaning of lye tank (vat)
Specific embodiment
Specific embodiments of the present invention will be further explained with reference to the accompanying drawing:
As shown in Figure 1, bitumen flue gas clean and environmental protection collection processing system implementing when liquid bitumen of the present invention is unloaded, including according to
Washing oil cleaning device, incinerator 15 and the alkaline cleaner of secondary setting；The washing oil cleaning device is washed by flue gas washer 10, exhaust
Net tower 11, cleaning oil groove 9 and washing oil circulating pump 13 form, and the flue gas washer 10, the setting of exhaust washing column 11 are in cleaning oil
The top of slot 9 is simultaneously coupled logical respectively, and cleaning oil groove 9 is separately connected flue gas washer 10, exhaust by washing oil circulating line
Washing column 11, and washing oil circulating pump 13 is set on washing oil circulating line；Smoke inlet on the flue gas washer 10 passes through pipeline
The exhanst gas outlet at 8 top of pitch storage tank is connected, the top of exhaust washing column 11 sets butterfly valve 12, and top sets exhanst gas outlet and passes through pipeline
The smoke inlet of 15 bottom of incinerator is connected, and sets flue gas exhaust fan 14 on the pipeline；The top of incinerator 15 sets butterfly valve 12, on
Portion sets exhanst gas outlet；Alkaline cleaner is made of lye tank (vat) 17 and alkali cleaning discharge tower 18, and alkali cleaning discharges tower 18 and is set to lye tank (vat) 17
Top is simultaneously coupled logical, is connected between lye tank (vat) 17 and alkali cleaning discharge tower 18 by lye circulating line, and lye circulation pipe
NaOH solution circulating pump 19 is set on road；It sets smoke inlet on lye tank (vat) 17 to connect by pipeline with the exhanst gas outlet of incinerator 15, the pipe
Recirculated water heat-exchanger rig 16 is set on road, the top of alkali cleaning discharge tower 18 sets neat stress outlet.
Liquid bitumen feed inlet is set at the top of the pitch storage tank 8, is connect by liquid bitumen pipeline with pitch unloading arm 3,
Pitch unloading pump 5 and asphalt flow meter 4 are set on liquid bitumen pipeline, the liquid of asphalt tank on pitch unloading arm 3 and pitch tank car 1
Asphalt outlet is connected by flexible quick connector 2；The top of asphalt tank connects nitrogen additional charge arm by flexible quick connector 2
6, nitrogen additional charge arm 6 is connect with nitrogen inlet tube, and pressure stabilizing direct-operated regulator 7 after valve is set on nitrogen inlet tube.
Bitumen flue gas clean and environmental protection collection processing method when liquid bitumen based on the system is unloaded, including walk as follows
It is rapid:
1) the pitch tank car 1 for loading liquid bitumen reaches place of unloading, and asphalt tank thereon is divided by flexible quick connector 2
It is not connect with nitrogen inlet tube, pitch unloading arm 3, pressure stabilizing direct-operated regulator 7 can be controlled after the valve being arranged on nitrogen inlet tube
Gas pressure in asphalt tank processed is micro-positive pressure；Start pitch unloading pump 5, liquid bitumen is delivered to pitch through pitch unloading arm 3
In storage tank 8；
2) with the rising of liquid level in pitch storage tank 8, the bitumen flue gas on top is collected into flue gas washer 10, drip
The washing oil that green flue gas is sent in flue gas washer 10 through washing oil circulating pump 13 carries out primary wash, and the washing oil after washing returns to cleaning
Oil groove 9, bitumen flue gas, which enters in exhaust washing column 11, is removed in depth harmful poisonous object by the washing oil that washing oil circulating pump 13 is sent, and washes
Oil is recycled and regularly replaces；
3) bitumen flue gas that most of harmful poisonous object is removed is discharged at the top of exhaust washing column 11, by flue gas exhaust fan
14 pairs of exhausts are pressurizeed, and are sent to incinerator 15 and are thoroughly incinerated, to remove remaining venomous injurant；
4) also contain NO in the bitumen flue gas after incineratingXAnd SO2Glance coal etc. environmentally harmful ingredient, after burning
Gas enters alkaline bath 17 after recirculated water exchanges heat, and exchanges in alkali cleaning discharge tower 18 with the reverse mass transfer of sig water, thoroughly removing drip
NO in green flue gasXAnd SO2, then neat stress is discharged into atmosphere.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Anyone skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (3)
- Bitumen flue gas clean and environmental protection collection processing system implementing when 1. liquid bitumen is unloaded, which is characterized in that washed including what is set gradually Oily cleaning device, incinerator and alkaline cleaner；The washing oil cleaning device is by flue gas washer, exhaust washing column, cleaning oil groove And washing oil circulating pump composition, the top of cleaning oil groove is arranged in the flue gas washer, exhaust washing column and difference is coupled Logical, cleaning oil groove is separately connected flue gas washer, exhaust washing column by washing oil circulating line, and sets and wash on washing oil circulating line Oil circulating pump；Smoke inlet on the flue gas washer connects the exhanst gas outlet at the top of pitch storage tank by pipeline, and exhaust is washed Butterfly valve is set at the top of net tower, top sets exhanst gas outlet and connects the smoke inlet of incinerator bottom by pipeline, and sets on the pipeline Flue gas exhaust fan；Butterfly valve is set at the top of incinerator, top sets exhanst gas outlet；Alkaline cleaner discharges tower group by lye tank (vat) and alkali cleaning Tower is discharged at, alkali cleaning and is set to the top of lye tank (vat) and coupled logical, passes through lye circulation between lye tank (vat) and alkali cleaning discharge tower Pipeline connection, and NaOH solution circulating pump is set on lye circulating line；The cigarette that smoke inlet passes through pipeline and incinerator is set on lye tank (vat) Gas outlet connects, and recirculated water heat-exchanger rig is set on the pipeline, sets neat stress outlet at the top of alkali cleaning discharge tower.
- 2. bitumen flue gas clean and environmental protection collection processing system implementing, feature exist when liquid bitumen according to claim 1 is unloaded In the pitch storage tank top sets liquid bitumen feed inlet, is connect by liquid bitumen pipeline with pitch unloading arm, liquid bitumen Pitch unloading pump and asphalt flow meter are set on pipeline, pitch unloading arm and the liquid bitumen outlet of asphalt tank on pitch tank car pass through Flexible quick connector connection；The top of asphalt tank connects nitrogen additional charge arm, nitrogen additional charge by flexible quick connector Arm is connect with nitrogen inlet tube, and pressure stabilizing direct-operated regulator after valve is set on nitrogen inlet tube.
- 3. bitumen flue gas clean and environmental protection collection processing method when the liquid bitumen based on system described in claim 1 is unloaded, special Sign is, includes the following steps:1) the pitch tank car arrival for loading liquid bitumen is unloaded place, asphalt tank thereon by flexible quick connector respectively with nitrogen Gas inlet tube, pitch unloading arm connect, and pressure stabilizing direct-operated regulator can control asphalt tank after the valve being arranged on nitrogen inlet tube Interior gas pressure is micro-positive pressure；Start pitch unloading pump, liquid bitumen is delivered in pitch storage tank through pitch unloading arm；2) with the rising of liquid level in pitch storage tank, the bitumen flue gas on top is collected into flue gas washer, bitumen flue gas The washing oil sent in flue gas washer through washing oil circulating pump carries out primary wash, and the washing oil after washing returns to cleaning oil groove, pitch Flue gas, which enters in exhaust washing column, is removed in depth harmful poisonous object by the washing oil that washing oil circulating pump is sent, and washing oil is recycled and determines Phase replacement；3) bitumen flue gas that most of harmful poisonous object is removed is from discharge at the top of exhaust washing column, by flue gas exhaust fan to exhaust It pressurizes, send to incinerator and thoroughly incinerated, to remove remaining venomous injurant；4) also contain NO in the bitumen flue gas after incineratingXAnd SO2Bitumen flue gas warp etc. environmentally harmful ingredient, after burning Enter alkaline bath after recirculated water heat exchange, exchanges in alkali cleaning discharge tower with the reverse mass transfer of sig water, thoroughly remove in bitumen flue gas NOXAnd SO2, then neat stress is discharged into atmosphere.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811420070.7A CN109395538A (en) | 2018-11-26 | 2018-11-26 | System and method for cleaning, environment-friendly collecting and treating asphalt smoke during unloading of liquid asphalt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811420070.7A CN109395538A (en) | 2018-11-26 | 2018-11-26 | System and method for cleaning, environment-friendly collecting and treating asphalt smoke during unloading of liquid asphalt |
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| Publication Number | Publication Date |
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| CN109395538A true CN109395538A (en) | 2019-03-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811420070.7A Pending CN109395538A (en) | 2018-11-26 | 2018-11-26 | System and method for cleaning, environment-friendly collecting and treating asphalt smoke during unloading of liquid asphalt |
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| CN (1) | CN109395538A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110877890A (en) * | 2019-12-06 | 2020-03-13 | 中冶焦耐(大连)工程技术有限公司 | A liquid asphalt unloading system and process |
| CN111957166A (en) * | 2020-09-14 | 2020-11-20 | 镇海石化工程股份有限公司 | High condensation point waste gas recovery device and recovery method |
| CN113521965A (en) * | 2021-01-29 | 2021-10-22 | 乌海宝杰新能源材料有限公司 | Efficient and energy-saving granulation tail gas treatment system and treatment process thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102776822A (en) * | 2012-07-31 | 2012-11-14 | 福建南方路面机械有限公司 | Bitumen material supply system |
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| CN113521965A (en) * | 2021-01-29 | 2021-10-22 | 乌海宝杰新能源材料有限公司 | Efficient and energy-saving granulation tail gas treatment system and treatment process thereof |
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Application publication date: 20190301 |