CN105833688B - The energy-saving clean tapping equipment of coke oven underground flue gas - Google Patents
The energy-saving clean tapping equipment of coke oven underground flue gas Download PDFInfo
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- CN105833688B CN105833688B CN201610294936.9A CN201610294936A CN105833688B CN 105833688 B CN105833688 B CN 105833688B CN 201610294936 A CN201610294936 A CN 201610294936A CN 105833688 B CN105833688 B CN 105833688B
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- waste heat
- ggh
- heat boiler
- coke oven
- moisture eliminator
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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
- B01D53/75—Multi-step processes
-
- 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
-
- 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
- B01D53/50—Sulfur 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
- B01D53/46—Removing components of defined structure
- B01D53/54—Nitrogen compounds
- B01D53/56—Nitrogen oxides
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B45/00—Other details
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
- F27D17/004—Systems for reclaiming waste heat
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
- F27D17/008—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases cleaning gases
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
- F27D17/004—Systems for reclaiming waste heat
- F27D2017/006—Systems for reclaiming waste heat using a boiler
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
- Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Treating Waste Gases (AREA)
Abstract
The present invention relates to coke oven exhaust gas utilization and environment protection emission technical field, the specially energy-saving clean tapping equipment of coke oven underground flue gas, including coke oven, medium temperature denitrification apparatus, waste heat boiler, air-introduced machine, desulfurizer and the chimney being sequentially connected by pipeline, the device also includes GGH, moisture eliminator and refrigeration unit, the moisture eliminator is between desulfurizer and chimney, the hot side of the GGH is between waste heat boiler and air-introduced machine, and GGH cold side is between moisture eliminator and chimney；The thermal source inlet of the refrigeration unit and the steam (vapor) outlet of waste heat boiler are connected, and the thermal source outlet of refrigeration unit and the water inlet of waste heat boiler are connected, and the freezing water entrance of refrigeration unit is connected with moisture eliminator by pipeline.The present invention reduces the injection flow rate of desulphurization system and power consumption and the power consumption of air-introduced machine is reduced, while solves white haze phenomenon.
Description
Technical field
Utilized the present invention relates to coke oven exhaust gas and environment protection emission technical field, the energy-conservation of specially coke oven underground flue gas are clean
Net tapping equipment.
Background technology
Limit and require for discharge of national " 12 " planning to atmosphere pollution, on numerous coal chemical enterprises desulfurization take off
Nitre device, with reference to denitration（260-280℃）And desulfurization（80-110℃）Technological requirement, using the technique of desulfurization after first denitration,
Denitration is directly carried out to 260-280 DEG C of flue gas using the method for medium temperature denitration, cooled subsequently into waste heat boiler, flue gas cool-down
To 180~150 DEG C, into desulfurizer, desulfurization is carried out, the flue gas after desulfurization directly passes through smoke stack emission.Due into desulfurization
The flue-gas temperature of device is higher, and the injection flow rate needed for desulfurizer increases, and causes the increasing of waste and the equipment electricity consumption of water resource
Add；Flue-gas temperature after desulfurization simultaneously is low, and flue gas water content is big, and flue gas can not obtain effective lifting, be formed about in chimney
White haze phenomenon.Therefore the original desulfurizing and denitrifying process of coal chemical enterprise can not meet the emission request of existing coal chemical enterprise.
The content of the invention
It is an object of the present invention to overcome the deficiencies in the prior art, there is provided a kind of energy-conservation of coke oven underground flue gas is clean
Net tapping equipment, reduces the injection flow rate and power consumption and the power consumption for reducing air-introduced machine of desulphurization system, while solves white haze and show
As.
In order to solve the above technical problems, the technical scheme is that：The energy-saving clean discharge dress of coke oven underground flue gas
Put, including coke oven, medium temperature denitrification apparatus, waste heat boiler, air-introduced machine, desulfurizer and the chimney being sequentially connected by pipeline, should
Device also includes GGH, moisture eliminator and refrigeration unit, and the moisture eliminator is between desulfurizer and chimney, the hot side of the GGH
Between waste heat boiler and air-introduced machine, GGH cold side is between moisture eliminator and chimney；The thermal source inlet of the refrigeration unit
It is connected with the steam (vapor) outlet of waste heat boiler, the thermal source outlet of refrigeration unit and the water inlet of waste heat boiler connect, refrigeration unit
Freezing water entrance is connected with moisture eliminator by pipeline.
Preferably, gas bypass is set between exhaust-heat boiler flue gas import and GGH hot side exhanst gas outlet.
Gas bypass is set in waste heat boiler and GGH hot sides, the short-term maintenance as equipment is used.
The workflow of the present invention：260-280 DEG C of the flue gas come out from coke oven is directly entered medium temperature denitrification apparatus, to cigarette
After qi exhaustion nitre, into waste heat boiler, flue-gas temperature is down to 180~150 DEG C, and produces 0.4-0.8MPa saturated vapor, as
The thermal source of refrigeration unit, for producing 5-7 DEG C of chilled water, the flue gas after cooling enters GGH hot sides, and flue-gas temperature is down into 80
Enter air-introduced machine after~110 DEG C, desulfurizer is delivered to by air-introduced machine pressurization, the flue gas after desulfurization, utilizes refrigeration unit
Caused 5-7 DEG C of chilled water is cooled 50-60 DEG C of the flue gas that desulfurizer comes out, and the flue gas after cooling separates out most of
Mechanical water, and 5-7 DEG C of chilled water is then warming up to 12-14 DEG C, then using GGH cold side by flue gas to after~80 DEG C
Discharged.
By this invention device, underground flue gas from coke oven come out after flue gas be 260~280 DEG C, into medium temperature denitration
System, the flue gas after denitration enter waste heat boiler, produce 0.4MP a saturated vapor, the flue-gas temperature of discharge is 160 DEG C, warp
Exhaust gas temperature is 80~110 DEG C after crossing GGH hot sides, and desulphurization system is entered after being pressurized by air-introduced machine, carries out desulfurization, boiler export
Saturated vapor deliver to refrigeration unit and produce 5-7 DEG C of chilled water, chilled water enters the moisture eliminator of desulfurizer outlet, by desulfurization
The flue gas that device exports 50-60 DEG C further cools, and most of mechanical water in flue gas is separated out, then flue gas is cold by GGH
Side is heated up, and flue-gas temperature is warming up into 80 DEG C or so passes through smoke stack emission.This invents the injection flow rate for reducing desulphurization system
And power consumption and the power consumption for reducing air-introduced machine, while solve white haze phenomenon, and original desulphurization denitration technology is not abundant
Utilize original fume waste heat and unresolved white haze phenomenon.
The beneficial effects of the invention are as follows：
1st, high-environmental, the present invention carries out desulfurization after first denitration to flue gases of cock oven, and solves white haze phenomenon, therefore
With the higher feature of environmental protection.
2nd, desulfuration efficiency is stable, the present invention, due to being dropped by heat transmission equipments of waste heat boiler, GGH hot side etc. some row
Wen Hou, into desulfurizer cigarette temperature at 80~110 DEG C, the efficient operation temperature range in desulfurizer, so can protect
The higher desulfuration efficiency of desulfurizer is demonstrate,proved, therefore desulfuration efficiency is stable.
3rd, economy, the present invention provide a kind of coke oven underground flue gas waste heat recovery cascade utilization technology, taken full advantage of
A large amount of thermal resources of flue gases of cock oven, and meet denitration, the needs of desulphurization system, reduce injection flow rate and the power consumption of desulphurization system
Amount, reduces the power consumption of air-introduced machine, therefore have preferable economy.
4th, system run all right, due to being provided with flue duct bypass between waste heat boiler and GGH hot side, therefore exchanging heat
, can be convenient with providing for short-term maintenance during device fails, reduce system-down rate.
Brief description of the drawings
Fig. 1：The overall structure diagram of the present invention.
In figure：1- coke ovens, 2- medium temperature denitrification apparatus, 3- waste heat boilers, 4-GGH hot sides, 5- air-introduced machines, 6- desulfurizers,
7- moisture eliminators, 8- GGH cold sides, 9- chimneys, 10- refrigeration units, 11- gas bypass.
Embodiment
Illustrate one embodiment of the present of invention below in conjunction with the accompanying drawings.
The energy-saving clean tapping equipment of coke oven underground flue gas, including be sequentially connected by pipeline coke oven 1, medium temperature denitration
Device 2, waste heat boiler 3, air-introduced machine 5, desulfurizer 6 and chimney 9, the device also include GGH, moisture eliminator 7 and refrigeration unit 10,
The moisture eliminator 7 between desulfurizer 6 and chimney 9, the hot side 4 of the GGH between waste heat boiler 3 and air-introduced machine 5,
GGH cold side 8 is between moisture eliminator 7 and chimney 9；The steam of the thermal source inlet and waste heat boiler 3 of the refrigeration unit 10 goes out
Mouthful connection, the thermal source outlet of refrigeration unit 10 is connected with the water inlet of waste heat boiler 3, the freezing water entrance of refrigeration unit 10 with
Moisture eliminator 7 is connected by pipeline.
Gas bypass 11 is set between the gas approach of waste heat boiler 3 and the GGH exhanst gas outlet of hot side 4.
During normal operation, flue gas flow：The 260-280 DEG C of waste gas discharged using coke oven underground flue is directly entered medium temperature and taken off
Nitre device 2, the flue gas by denitration enter waste heat boiler 3, and the flue gas after the cooling of waste heat boiler 3 enters GGH hot side 4, will
Flue-gas temperature is pressurized into the desulfurization of desulfurizer 6 after being down to 80-110 DEG C by air-introduced machine 5, and the flue gas after desulfurization passes through moisture eliminator 7
The moisture in flue gas is separated out after cooling, the cold side 8 and the neat stress after desulfurization for entering back into GGH are exchanged heat, by flue-gas temperature
80 DEG C or so are heated to discharge by chimney 9.
Steam flow：0.4-0.8MPa saturated vapor is produced by waste heat boiler 3, into refrigeration unit 10, produces 5-7 DEG C
Chilled water, with after desulfurization neat stress heat exchange after discharge, and exchange heat after chilled water be warming up to 12-14 DEG C；GGH cold side and
Hot side carries out the transmission of heat by heating agent, and GGH hot side is connected with cold side by pipeline.
More than, only presently preferred embodiments of the present invention, but protection scope of the present invention is not limited thereto, GGH heating agent
Medium can be water, conduction oil or other media, and GGH form also can be various, can be heat pipe-type, tubular type, swinging.To appointing
What those familiar with the art the invention discloses technical scope in, the change or replacement that can readily occur in, all
Because being included within the scope of the present invention.Therefore, the protection that protection scope of the present invention should be defined with claim
Scope is defined.
Claims (2)
1. the energy-saving clean tapping equipment of coke oven underground flue gas, including coke oven, the medium temperature denitration dress being sequentially connected by pipeline
Put, waste heat boiler, air-introduced machine, desulfurizer and chimney, it is characterised in that：The device also includes GGH, moisture eliminator and refrigeration machine
Group, the moisture eliminator is between desulfurizer and chimney, and the hot side of the GGH is between waste heat boiler and air-introduced machine, GGH
Cold side between moisture eliminator and chimney；The thermal source inlet of the refrigeration unit and the steam (vapor) outlet of waste heat boiler connect, system
The thermal source outlet of cold group and the water inlet of waste heat boiler connect, and the freezing water entrance and moisture eliminator of refrigeration unit pass through pipeline
Connection.
2. the energy-saving clean tapping equipment of coke oven underground flue gas according to claim 1, it is characterised in that：In waste heat pot
Gas bypass is set between kiln gas import and GGH hot side exhanst gas outlet.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610294936.9A CN105833688B (en) | 2016-05-06 | 2016-05-06 | The energy-saving clean tapping equipment of coke oven underground flue gas |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610294936.9A CN105833688B (en) | 2016-05-06 | 2016-05-06 | The energy-saving clean tapping equipment of coke oven underground flue gas |
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| Publication Number | Publication Date |
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| CN105833688A CN105833688A (en) | 2016-08-10 |
| CN105833688B true CN105833688B (en) | 2018-03-02 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108131656B (en) * | 2017-07-10 | 2024-03-15 | 昊姆（上海）节能科技有限公司 | Ultra-clean emission cold and hot co-production system of coking plant |
| CN112933933A (en) * | 2021-01-29 | 2021-06-11 | 杭州元朔环保科技有限公司 | Ultra-clean treatment system for high-temperature and high-alkali flue gas |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09290128A (en) * | 1996-04-25 | 1997-11-11 | Babcock Hitachi Kk | Exhaust gas processing apparatus and method for controlling its operation |
| WO2004068034A1 (en) * | 2003-01-31 | 2004-08-12 | Babcock-Hitachi Kabushiki Kaisha | Exhaust gas processing device , and method of using the same |
| CN202113756U (en) * | 2011-04-18 | 2012-01-18 | 王海青 | Fume purifying system for mixing and heating fume waste heat and air |
| CN102512910A (en) * | 2011-11-23 | 2012-06-27 | 浙江天蓝环保技术股份有限公司 | Smoke heat exchange process for recycling evaporated water of gas desulfurization system |
| CN103032881A (en) * | 2011-09-30 | 2013-04-10 | 上海伏波环保设备有限公司 | System using extraction steam of boiler unit to heat clean smoke after desulfurization |
| CN104421955A (en) * | 2013-08-21 | 2015-03-18 | 重庆市商顺换热设备有限公司 | Three-dimensional internal and external finned tube integrated air preheater and processing method thereof |
| CN204365119U (en) * | 2014-12-30 | 2015-06-03 | 大连贝斯特环境工程设备有限公司 | A kind of coke oven flue gas denitration desulfurization and reheat system process unit |
| CN104676620A (en) * | 2015-02-11 | 2015-06-03 | 杭州华电能源工程有限公司 | Flue gas processing system and flue gas processing method capable of enabling low-low temperature electrostatic precipitation to be combined with water pollination type GGH (Gas Gas Heater) |
| CN205517184U (en) * | 2016-05-06 | 2016-08-31 | 山东岱荣节能环保科技有限公司 | Energy -conserving clean discharging equipment of coke oven underground flue gas |
-
2016
- 2016-05-06 CN CN201610294936.9A patent/CN105833688B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09290128A (en) * | 1996-04-25 | 1997-11-11 | Babcock Hitachi Kk | Exhaust gas processing apparatus and method for controlling its operation |
| WO2004068034A1 (en) * | 2003-01-31 | 2004-08-12 | Babcock-Hitachi Kabushiki Kaisha | Exhaust gas processing device , and method of using the same |
| CN202113756U (en) * | 2011-04-18 | 2012-01-18 | 王海青 | Fume purifying system for mixing and heating fume waste heat and air |
| CN103032881A (en) * | 2011-09-30 | 2013-04-10 | 上海伏波环保设备有限公司 | System using extraction steam of boiler unit to heat clean smoke after desulfurization |
| CN102512910A (en) * | 2011-11-23 | 2012-06-27 | 浙江天蓝环保技术股份有限公司 | Smoke heat exchange process for recycling evaporated water of gas desulfurization system |
| CN104421955A (en) * | 2013-08-21 | 2015-03-18 | 重庆市商顺换热设备有限公司 | Three-dimensional internal and external finned tube integrated air preheater and processing method thereof |
| CN204365119U (en) * | 2014-12-30 | 2015-06-03 | 大连贝斯特环境工程设备有限公司 | A kind of coke oven flue gas denitration desulfurization and reheat system process unit |
| CN104676620A (en) * | 2015-02-11 | 2015-06-03 | 杭州华电能源工程有限公司 | Flue gas processing system and flue gas processing method capable of enabling low-low temperature electrostatic precipitation to be combined with water pollination type GGH (Gas Gas Heater) |
| CN205517184U (en) * | 2016-05-06 | 2016-08-31 | 山东岱荣节能环保科技有限公司 | Energy -conserving clean discharging equipment of coke oven underground flue gas |
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