CN106621679B - Cooling condensation pre-washing device before a kind of coking smoke wet method sulphur removing and dust removing - Google Patents
Cooling condensation pre-washing device before a kind of coking smoke wet method sulphur removing and dust removing Download PDFInfo
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- CN106621679B CN106621679B CN201611177295.5A CN201611177295A CN106621679B CN 106621679 B CN106621679 B CN 106621679B CN 201611177295 A CN201611177295 A CN 201611177295A CN 106621679 B CN106621679 B CN 106621679B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D51/00—Auxiliary pretreatment of gases or vapours to be cleaned
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- 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
- B01D53/1487—Removing organic compounds
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/40—Devices for separating or removing fatty or oily substances or similar floating material
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- 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
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- 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
- B01D53/48—Sulfur compounds
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- 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
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/18—Nature of the water, waste water, sewage or sludge to be treated from the purification of gaseous effluents
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- General Chemical & Material Sciences (AREA)
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- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Treating Waste Gases (AREA)
- Gas Separation By Absorption (AREA)
Abstract
Cooling condensation pre-washing device before a kind of coking smoke wet method sulphur removing and dust removing, coking flue gas need to enter desulfurizing tower from flue and carry out wet type desulfurizing, pre-processing channel is set between flue and desulfurizing tower, is successively arranged spraying condensed layer and spray washing layer along flow of flue gas direction in pre-processing channel.Pre-washing device is condensed by cooling before increasing coking smoke wet method sulphur removing and dust removing, effectively it is stripped of the Some Organic Pollutants contained in coking flue gas, the working efficiency for having ensured wet desulfuration tower, wet electrical dust precipitator simultaneously reaches the discharge standard that local environmental protection administration requires.
Description
Technical field
The present invention relates to coking fume treatment technical field, in particular to cool down before a kind of coking smoke wet method sulphur removing and dust removing
Condense pre-washing device.
Background technique
Coking plant is the process units that China's steel industry generally uses, and the exhaust gas volumn of generation is very big.Coking smoke pollution
Object control is always the rub in Environmental Protection in China engineering, and by investigation, the heating source of cooking camber largely uses coking
Self-produced raw coke oven gas or treated purified gas, but the organic compound combustions such as aromatic hydrocarbons included due to coal gas are not exclusively or raw coke oven gas is let out
The reasons such as dew, cause the characteristic of the pollutant component complexity of discharged gas fume, to making for flue gas pollutant prevention and cure project later
At certain difficulty.
Through carrying out sampling qualitative and quantitative detection to certain coking wet method flue gas-desulfurizing absorption tower entrance original flue gas, testing result is aobvious
Show and contains benzene, toluene, 1,2- dimethyl cyclohexane, 1,4- dimethyl cyclohexane, ethyl ring in the former flue gas of coking engineering projects generation
Hexane, 1,3- trimethyl-cyclohexane, 1,2,4- trimethyl-cyclohexane, 2- methyloctane, ethylbenzene, meta-xylene, nonane, 1- first
The main organic matter of -3 ethyl cyclohexane of base, trimethylbenzene, dibutoxy ethyl alcohol, paraxylene, hendecane etc. more than 17, wherein most
Organic matter all has certain toxicity under microdose, and band phenyl ring aromatic hydrocarbons acts on human body or even will affect reproduction cell, makes
At unpredictable genetic disease.And the organic matter aerosol carried secretly in coking flue gas has seriously affected wet desulphurization and has removed
Dirt efficiency.After coking original flue gas, which enters absorption tower, meets slurries, flue gas exchanges heat with slurries, and flue-gas temperature reduces, and has been down to
Machine object boiling point is hereinafter, cause organic gas liquefaction to be liquid, since above-mentioned liquid state organics are not soluble in water, therefore the shape in slurries
At oily dope, the lesser organic matter of interfacial tension is wrapped in slurry surface, produces interfacial resistance, influences gas-liquid mass transfer speed
Rate, and then desulfuration efficiency is reduced, further, since containing Cl- in flue gas, chloromethylation can be carried out with a variety of aromatic hydrocarbons, drawn
Enter in aromatic hydrocarbons-CH2Cl base can easily be converted into-CH3 ,-CH2OH ,-CHO ,-CH2CN ,-CH2NH2 ,-
The groups such as CH2R, and then a series of organic aromatic derivants are obtained, keep smoke components more complicated.It is condensed in absorption tower
After liquid state organics enter wet cottrell by flue gas entrainment, it is adhered on anode and cathode component, has seriously affected electric discharge lotus
Electric behavior reduces the efficiency of dust collection of wet cottrell.Even if using mechanical demister after wet desulphurization, condensation has
Machine composition granule is adhered to demister flase floor, not can be removed at all using irrigating medium, causes the stifled of demister over time
Plug, more seriously increases system pressure.Therefore setting is directed to coking flue gas together before coking smoke wet method sulphur removing and dust removing
The pretreatment process of middle organic granular pollutant be it is very urgent and it is necessary to.
Summary of the invention
To overcome problems of the prior art, the present invention provides cool down before a kind of coking smoke wet method sulphur removing and dust removing
Condense pre-washing device, solve traditional flue gas pollutant control engineering be difficult to continuous effective removal coking flue gas contain it is a variety of
The problem of organic pollutant.
The technical scheme adopted by the invention to solve the technical problem is that: cool down before this kind of coking smoke wet method sulphur removing and dust removing
Pre-washing device is condensed, coking flue gas need to enter desulfurizing tower from flue and carry out wet type desulfurizing, be arranged between flue and desulfurizing tower pre-
Treatment channel is successively arranged spraying condensed layer and spray washing layer along flow of flue gas direction in pre-processing channel.
Further, the pre-processing channel includes the main body of tubular and the pipe of the connection of main body both ends flue and desulfurizing tower
Road.
Further, the spraying condensed layer is spraying for two-fluid spray nozzle, and spray angle is to be parallel to flow of flue gas direction.
Further, spray washing layer carries out spray washing to flue gas using solid-cone (type) nozzle, and spray angles are the upper half
Point solid-cone (type) nozzle in parallel relative to flue gas circulating direction, lower half portion solid-cone (type) nozzle and flue gas flow direction be in be greater than an angle of 90 degrees to
Upper spray.
It further, further include providing the circulating pump at water source to spraying condensed layer and spray washing layer, the circulating pump is logical
Water supply line is crossed to be connected to spraying condensed layer and spray washing layer.
Further, rhone and access hole are equipped on the body, be equipped with below the rhone gas distribution float every
Oil sump, the water in rhone are back in gas distribution floating oil separator.
Further, pore gas distribution pipe is laid in the gas distribution floating oil separator, pore gas distribution pipe is supplied by air blower.
Further, the gas distribution floating oil separator is connect with recovery pond and circulating water pool, recovery pond and circulating water pool by
Dredge pump periodical blowdown.
Further, the circulating water pool connect regular moisturizing with small pump.
Further, it is connect above the gas distribution floating oil separator with overflow recovery tube.
To sum up, the advantageous effects of the above technical solutions of the present invention are as follows:
Pre-washing device is condensed by cooling before increasing coking smoke wet method sulphur removing and dust removing, is effectively stripped of coking flue gas
In the Some Organic Pollutants that contain, while having ensured the working efficiency of wet desulfuration tower, wet electrical dust precipitator, reached and work as
The discharge standard that ground environmental protection administration requires.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is spraying layer arrangement of nozzles schematic diagram of the present invention.
In figure:
1. circulating water pool, 2. recovery ponds, 3. gas distribution floating oil separators, 4. circulating pumps, 5. small pumps, 6. dredge pumps, 7. is empty
Air compressor, 8. spraying condensed layers, 9. spray washing layers, 10. rhones, 11. pore gas distribution pipes, 12. air blowers, 13. overflows
Recovery tube, 14. desulfurizing towers, 15. flues, 16. access holes.
Specific embodiment
Feature and principle of the invention are described in detail below in conjunction with attached drawing 1 and Fig. 2, illustrated embodiment is only used for solving
The present invention is released, is not limited the scope of protection of the present invention with this.
As shown in Figure 1, the coking flue gas come out from flue 15, which need to enter desulfurizing tower 14, carries out wet type desulfurizing, desulfurization is being carried out
It is pre-processed first before.Pre-processing channel is set between flue and desulfurizing tower, along flow of flue gas side in pre-processing channel
To being successively arranged spraying condensed layer 8 and spray washing layer 9.Cold and spray washing layer is condensed by spraying to organic in coking flue gas
Grain pollutant is handled, and the liquid state organics for preventing it from condensing in absorption tower enter wet cottrell by flue gas entrainment
Afterwards, it is adhered on anode and cathode component, seriously affects the charged behavior of electric discharge.Improve the efficiency of dust collection of wet cottrell.
Pre-processing channel includes the main body of tubular and the pipeline of the connection of main body both ends flue and desulfurizing tower.Condensed layer is by spraying
Two-fluid spray nozzle is spraying, and spray angle is to be parallel to flow of flue gas direction.As shown in Fig. 2, spray washing layer is sprayed using solid-cone
Mouth carries out spray washing to flue gas, and spray angles are top half solid-cone (type) nozzle in parallel relative to flue gas circulating direction, lower half
Part-solid bores nozzle and flue gas flow direction is in be greater than an angle of 90 degrees upward spraying.
It further include providing the circulating pump at water source to spraying condensed layer and spray washing layer, the circulating pump passes through water supply line
It is connected to spraying condensed layer and spray washing layer.
It is equipped with rhone 10 and access hole 16 in main body, is equipped with gas distribution floating oil separator below rhone, in rhone
Water be back in gas distribution floating oil separator.Access hole can be used for periodically overhauling main body, checked and being cleared up.
Pore gas distribution pipe 11 is laid in gas distribution floating oil separator, pore gas distribution pipe is supplied by air blower.Gas distribution floating oil removal
Pond is connect with recovery pond and circulating water pool, and recovery pond and circulating water pool are by dredge pump periodical blowdown.Circulating water pool and small pump connect
Connect regular moisturizing.Due in high-temperature flue gas largely evaporation lose moisture, circulating water pool need to by 5 regular supply moisture of small pump,
Guarantee the long-term continuous operation of the spraying spray system of circulation.It is connect above gas distribution floating oil separator with overflow recovery tube.
Specific implementation example is cooling condensation pre-washing device before coking smoke wet method sulphur removing and dust removing, as shown in Figure 1, drop
Temperature condensation pre-washing device is arranged in front of wet desulfuration tower, and cylindrical body structure is connected on flue, and inside is according to cigarette
Air-flow is respectively disposed with one layer of spraying condensed layer 8 and one layer of spray washing layer 9 forwards, backwards, and lower part is equipped with rhone 10 and access hole
16 etc..Spraying condensed layer 8 is spraying for two-fluid spray nozzle, is supplied water by water circulating pump 4, by other high pressures in air compressor 7 or factory
Gas source supplies compressed air.Spray washing layer 9 is single-fluid high pressure spray, is supplied water by water circulating pump 4.Containing organic gas and
After the flue gas of particle enters cooling condensation pre-washing device, condensed layer 8 is sprayed by spraying first, and spray direction is parallel to flue gas
Flow direction is refined as 40 μm~200 μm of water droplet and evaporates rapidly in high-temperature flue gas, a large amount of heat absorbed, so that flue gas
Temperature is cooled to the boiling point (mostly at 110 DEG C or more) of organic components in flue gas rapidly hereinafter, organic matter liquefaction is microlayer model quilt
Flue gas continues entrainment by spray washing layer 9.9 pairs of flue gas of spray washing layer carry out spray washing, arrangement of nozzles pattern, such as Fig. 2
Shown, spray angles are that top half solid-cone (type) nozzle is opposite with flue gas circulating direction in parallel, lower half portion solid-cone (type) nozzle with
Flue gas flow direction is in 150 ° of upward sprayings.Organic matter microlayer model in flue gas, which is washed, to settle down, and mixes the row of collecting in water flow
Gas distribution floating oil separator 3 is discharged into sink 10.It is laid with pore gas distribution pipe 11 in gas distribution floating oil separator 3, gas distribution pipe is by air blast
Machine 12 supplies, and air is passed through in oily waste water, many micro-bubbles are formed, in interfacial tension, bubble floating power and hydrostatic pressing
Gas-oil droplet combination is formed under the action of power difference to float and realize water-oil separating.Treated that waste water is discharged into recycling for gas distribution oil removal
In pond 2, the oil reservoir that surface is floated on since density is low is recycled by overflow recovery tube 13.Remaining water is discharged into circulating water pool 1, by
In largely moisture is lost in evaporation in high-temperature flue gas, circulating water pool need to guarantee the spraying spray of circulation by 5 regular supply moisture of small pump
The long-term continuous operation of leaching system.Gas distribution floating oil separator 3,2 bottom of pond of recovery pond deposition dust-laden waste water layer are periodically outer by dredge pump 6
Desulfurization slurry processing system squeezing in factory is discharged into handle.
Cooling condensation pre-washing device can effectively remove in coking flue gas before this coking smoke wet method sulphur removing and dust removing
The organic matters such as aromatic hydrocarbon ensure that wet process so as to avoid its influence to wet desulfuration tower and wet electrical dust precipitator later
The normally and efficiently operation of desulfurization dust-removal system.
The above is by the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, without departing from the principles of the present invention, it can also make several improvements and retouch, these improvements and modifications
Also it should be regarded as protection scope of the present invention.
Claims (3)
1. cooling condensation pre-washing device, coking flue gas need to enter desulfurizing tower from flue before a kind of coking smoke wet method sulphur removing and dust removing
Carry out wet type desulfurizing, which is characterized in that pre-processing channel is set between flue and desulfurizing tower, along flue gas stream in pre-processing channel
Dynamic direction is successively arranged spraying condensed layer and spray washing layer；
The pre-processing channel includes the main body of tubular and the pipeline of the connection of main body both ends flue and desulfurizing tower；
It further include providing the circulating pump at water source to spraying condensed layer and spray washing layer, the circulating pump passes through water supply line and spray
Mist condensed layer is connected to spray washing layer；
It is equipped with rhone and access hole on the body, is equipped with gas distribution floating oil separator below the rhone, in rhone
Water be back in gas distribution floating oil separator；
Pore gas distribution pipe is laid in the gas distribution floating oil separator, pore gas distribution pipe is supplied by air blower；
The gas distribution floating oil separator is connect with recovery pond and circulating water pool, and recovery pond and circulating water pool are periodically arranged by dredge pump
It is dirty；
The circulating water pool connect regular moisturizing with small pump；
It is connect above the recovery pond with overflow recovery tube.
2. cooling condensation pre-washing device, feature before a kind of coking smoke wet method sulphur removing and dust removing according to claim 1
It is, the spraying condensed layer is spraying for two-fluid spray nozzle, and spray angle is to be parallel to flow of flue gas direction.
3. cooling condensation pre-washing device, feature before a kind of coking smoke wet method sulphur removing and dust removing according to claim 1
It is, spray washing layer carries out spray washing to flue gas using solid-cone (type) nozzle, and spray angles are top half solid-cone (type) nozzle
In parallel relative to flue gas circulating direction, lower half portion solid-cone (type) nozzle and flue gas flow direction are in be greater than 120 degree of angle upward sprayings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611177295.5A CN106621679B (en) | 2016-12-19 | 2016-12-19 | Cooling condensation pre-washing device before a kind of coking smoke wet method sulphur removing and dust removing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611177295.5A CN106621679B (en) | 2016-12-19 | 2016-12-19 | Cooling condensation pre-washing device before a kind of coking smoke wet method sulphur removing and dust removing |
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| Publication Number | Publication Date |
|---|---|
| CN106621679A CN106621679A (en) | 2017-05-10 |
| CN106621679B true CN106621679B (en) | 2019-06-18 |
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| CN201611177295.5A Active CN106621679B (en) | 2016-12-19 | 2016-12-19 | Cooling condensation pre-washing device before a kind of coking smoke wet method sulphur removing and dust removing |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101357297A (en) * | 2008-09-18 | 2009-02-04 | 佛山市三水区碧源环保工程有限公司 | Wet desulfurization dust-removing device and processing method thereof |
| CN201529488U (en) * | 2009-10-30 | 2010-07-21 | 江苏新世纪江南环保有限公司 | Gas ammonia washing combined sintering smoke desulphurization device |
| CN102357338A (en) * | 2011-10-26 | 2012-02-22 | 江苏一同环保工程技术有限公司 | Smelting smoke pretreatment device by adopting wet desulphurization |
| CN203816407U (en) * | 2014-01-22 | 2014-09-10 | 江苏省中意环保科技有限公司 | Ash pre-removing device applied to desulfurization |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003205222A (en) * | 2002-01-16 | 2003-07-22 | Mitsubishi Heavy Ind Ltd | Stack gas desulfurization apparatus |
-
2016
- 2016-12-19 CN CN201611177295.5A patent/CN106621679B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101357297A (en) * | 2008-09-18 | 2009-02-04 | 佛山市三水区碧源环保工程有限公司 | Wet desulfurization dust-removing device and processing method thereof |
| CN201529488U (en) * | 2009-10-30 | 2010-07-21 | 江苏新世纪江南环保有限公司 | Gas ammonia washing combined sintering smoke desulphurization device |
| CN102357338A (en) * | 2011-10-26 | 2012-02-22 | 江苏一同环保工程技术有限公司 | Smelting smoke pretreatment device by adopting wet desulphurization |
| CN203816407U (en) * | 2014-01-22 | 2014-09-10 | 江苏省中意环保科技有限公司 | Ash pre-removing device applied to desulfurization |
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| CN106621679A (en) | 2017-05-10 |
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Address after: 250300 No.001 Guoshun Road, Jinan Economic Development Zone, Changqing District, Jinan City, Shandong Province Patentee after: SHANDONG GUOSHUN CONSTRUCTION GROUP Co.,Ltd. Address before: 250300 No. 2169, Longquan street, Changqing District, Jinan City, Shandong Province Patentee before: SHANDONG GUOSHUN CONSTRUCTION GROUP Co.,Ltd. |
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Denomination of invention: A cooling, condensation and pre washing device for wet desulfurization and dedusting of coking flue gas Effective date of registration: 20221228 Granted publication date: 20190618 Pledgee: Qilu bank Limited by Share Ltd. Ji'nan Changqing branch Pledgor: SHANDONG GUOSHUN CONSTRUCTION GROUP Co.,Ltd. Registration number: Y2022980029384 |
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