CN102534101A - Method and device using convertor waste gas to produce high-quality steam needed by refining furnace in matching way - Google Patents
Method and device using convertor waste gas to produce high-quality steam needed by refining furnace in matching way Download PDFInfo
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- CN102534101A CN102534101A CN2012100279010A CN201210027901A CN102534101A CN 102534101 A CN102534101 A CN 102534101A CN 2012100279010 A CN2012100279010 A CN 2012100279010A CN 201210027901 A CN201210027901 A CN 201210027901A CN 102534101 A CN102534101 A CN 102534101A
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- 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
- Y02P10/10—Reduction of greenhouse gas [GHG] emissions
- Y02P10/143—Reduction of greenhouse gas [GHG] emissions of methane [CH4]
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- 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
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- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
Abstract
The invention discloses a method and a device using convertor waste gas to produce high-quality steam needed by a refining furnace in a matching way. The method comprises a smoke-wind process and a steam-water process. The device is a fuel gas superheating furnace and comprises a gas regulating valve, a burner, a hearth, a wind mixing chamber, a superheater, a heat exchange tube bundle, an air preheater, a draught fan, an air blower wind-mixing regulating valve, a steam-water separator, a spray type desuperheater and a steam flow control valve. The fuel gas superheating furnace uses diffused steam and gas of a steelmaking system as a working energy source to produce micro superheated steam needed by a vacuum refining furnace, the intermittent working of the fuel gas superheating furnace is controlled through interlocking, and the process requirement of the refining furnace is rapidly responded. The steelmaking system produces intermittent and instable low-pressure saturated steam through the fuel gas superheating furnace, and the refining furnace needs an organic match of two process systems of an intermittent and micro superheated steam. The high-quality steam needed by production of the original vacuum refining furnace is effectively saved, and the energy consumption and the production cost for steelmaking are reduced.
Description
Technical field
The invention belongs to the steelmaking equipment technical field, further belong to iron and steel enterprise waste gas comprehensive utilization technique field, be specifically related to a kind of method and device with the required high-quality steam of converter waste gas coupling production refining furnace.
Background technology
In the vacuum refining furnace system device, the vacuum pump of making vacuum is the key equipment of refining furnace.Vacuum pump requires steam supply rapid by uperize work, and pressure and temperature is stable; Will confess qualified steam in a short period of time, need not promptly close, be i.e. during vacuum refining furnace work; The stable high-quality steam that provides constantly; Pressure 1.0MPa, 210 ± 5 ℃ of superheated vapours, the about 38min of the smelting cycle of vacuum refining furnace is with about 20min of vapour time.
And iron and steel enterprise's steel-making converter smelting cycle is about 30min ~ 45min; About 10min ~ the 15min of duration of blast; Only produce steam in the blowing process; Therefore generally all supporting 3 the above steel-making converters of enterprise, forked working, and the configuration thermophore cushions and stores the low-quality steam of converter that intermittently produces, and stablize the equipment use of steam in order to this needs of vacuum refining furnace.Steam accumulator outlet saturated vapour pressure generally is about 1.2 MPa.
Generally all there is rich coal gas in iron and steel enterprise, and rich coal gas drains in the atmosphere after diffusing the tower ignition usually, has not only caused the waste of the energy, and has polluted atmospheric environment.
Summary of the invention
First purpose of the present invention is to provide a kind of coal gas that utilizes the unstable steam of existing steelmaking system, enterprise to diffuse; With combustion gas superheater and supporting system, form one and overlap brand-new, the safe working method that duty also can respond the refining furnace processing requirement fast of being interrupted; Another object of the present invention is to provide a kind of device of realizing preceding method.
First purpose of the present invention is achieved in that and comprises distinguished and admirable journey of cigarette and carbonated drink flow process, specifically comprises:
A, the distinguished and admirable journey of cigarette: the coal gas that converter produces is sent into the combustion gas superheater behind gas regulator, burner; With natural gas fired, with the warm-up combustion-supporting air mixed firing that gas blower is sent into, gas fume after burning is mixed with the part combustion air again; Burner hearth cigarette temperature is modulated to 500 ℃ ~ 800 ℃ through mixing the wind variable valve; Then behind superheater bank, air preheater, below the cigarette temperature drop to 170 ℃, introduce chimney through boiler induced-draft fan and efflux;
B, carbonated drink flow process: it is overheated that the saturation steam that steelmaking system comes gets into superheater bank through combustion gas superheater inlet; Control superheat steam temperature in scope of design through desuperheater again; The superheated vapour outlet divides two-way; One the tunnel regulates after refining furnace is delivered in outlet through adjusting control valve, and another road is regulated after plant area's LP steam pipe network is delivered in outlet through adjusting control valve.
Another object of the present invention is to realize like this; Comprise gas regulator, burner, burner hearth, wind mixed chamber, suphtr heat-exchanging tube bundle, air preheater, induced draft fan, gas blower, mix wind variable valve, steam separator, direct-contact desuperheater, steam flow controlling valve; Described gas regulator is communicated with the burner that is arranged in the combustion gas superheater burner hearth; The burner hearth rear portion is provided with wind mixed chamber, and atmosphere is introduced into air preheater and wind mixed chamber respectively through gas blower; Air preheater is through pipeline connection combustor air inlet pipeline; Steel-making saturation steam pipeline is communicated with the superheated vapour heat-exchanging tube bundle through steam separator, and the outlet of hot steam heat-exchanging tube bundle connects direct-contact desuperheater, and direct-contact desuperheater exports one the tunnel and connects refining furnace superheat steam flow adjusting control valve to refining furnace superheated vapour interface; Another road is through LP steam adjusting control valve to low pressure steam pipe network interface; The exhanst gas outlet of air preheater connects chimney through induced draft fan.
The present invention adopts the combustion gas superheater and passes through to adopt advanced control scheme implementation technology controlling and process; What be the combustion gas superheater with steelmaking system diffuses steam and coal gas for as the energy of working; Produce the required little superheated vapour of vacuum refining furnace; The work that is interrupted through interlocked control combustion gas superheater responds the refining furnace processing requirement fast.Realized that through the combustion gas superheater steelmaking system generation is interrupted and unstable low-pressure saturated steam; And refining furnace need be interrupted and organic coupling of two process systems of little superheated vapour, guarantees that superheater chamber flue gas temperature, flow can regulate according to superheated vapour amount demand fast.This is operating safety not only, and has saved former vacuum refining furnace effectively and produced needed high-quality steam, utilizes waste heat to greatest extent, reduces steel-making energy consumption and production cost.
Description of drawings
Accompanying drawing is technical process of the present invention and device synoptic diagram.
Among the figure: 1-gas entry, 2-gas regulator, 3-burner, 4-burner hearth, 5-wind mixed chamber; 6-suphtr heat-exchanging tube bundle, 7-air preheater, 8-induced draft fan, 9-chimney, 10-gas blower; The 11-atmosphere, 12-mixes the wind variable valve, 13-steel-making saturation steam inlet, 14-steam separator, 15-direct-contact desuperheater; 16-refining furnace superheat steam flow adjusting control valve, 17-refining furnace superheated vapour interface, 18-LP steam adjusting control valve, 19-low pressure steam pipe network interface.
Embodiment
Below in conjunction with accompanying drawing and experimental example the present invention is further described, but never in any form the present invention is limited, any change or improvement based on training centre of the present invention is done all belong to protection scope of the present invention.
The inventive method comprises distinguished and admirable journey of cigarette and carbonated drink flow process, specifically comprises:
The distinguished and admirable journey of described cigarette is that the coal gas that converter produces is sent into the combustion gas superheater behind gas regulator, burner, with natural gas fired; The warm-up combustion-supporting air mixed firing of sending into gas blower; Gas fume after burning is mixed with the part combustion air again, burner hearth cigarette temperature is modulated to 500 ℃ ~ 800 ℃ through mixing the wind variable valve, then behind superheater bank, air preheater; Below the cigarette temperature drop to 170 ℃, introduce chimney through boiler induced-draft fan and efflux;
Described carbonated drink flow process: be that the saturation steam that steelmaking system comes is got into superheater bank through combustion gas superheater inlet is overheated; Control superheat steam temperature in scope of design through desuperheater again; The superheated vapour outlet divides two-way; One the tunnel regulates after refining furnace is delivered in outlet through adjusting control valve, and another road is regulated after plant area's LP steam pipe network is delivered in outlet through adjusting control valve.
Described combustion gas superheater be a kind of in short-term, the safety type combustion gas superheater of discontinuous operation pattern.
Described low-quality saturation steam is the low-quality steam that diffuses of steelmaking system affluence.
The required coal gas of described combustion gas superheater is blast furnace gas, coal gas of converter or the coke-oven gas that iron and steel enterprise diffuses.
Shown in accompanying drawing; Apparatus of the present invention comprise gas regulator 2, burner 3, burner hearth 4, wind mixed chamber 5, suphtr heat-exchanging tube bundle 6, air preheater 7, induced draft fan 8, gas blower 10, mix wind variable valve 12, steam separator 14, direct-contact desuperheater 15, steam flow controlling valve; Described gas regulator 2 is communicated with the burner 3 that is arranged in the combustion gas superheater burner hearth 4; The burner hearth rear portion is provided with wind mixed chamber 5, and atmosphere is introduced into air preheater 7 and wind mixed chamber 5 respectively through gas blower 10; Air preheater 7 is through pipeline connection burner 3 admission passages; Steel-making saturation steam inlet 13 is communicated with superheated vapour heat-exchanging tube bundle 6 through steam separator 14; 6 outlets of hot steam heat-exchanging tube bundle connect direct-contact desuperheater 15, and direct-contact desuperheater 15 outlets connect refining furnace superheat steam flow adjusting control valve 16 to refining furnace superheated vapour interface 17.
Described direct-contact desuperheater 15 outlets one tunnel connect refining furnace superheat steam flow adjusting control valve 16 to refining furnace superheated vapour interface 17; Another road is through LP steam adjusting control valve 18 to low pressure steam pipe network interface 19.
Principle of work of the present invention:
When refining furnace is used vapour; The air inlet adjustment that turns on the gas-fire fast valve; The coal gas amount of superheater burner hearth is sent in increasing; Strengthen to give heat with 800 ℃ of the cigarette Wen Zhiyue that improve wind mixed chamber, through control vapor temperature of the variable valve on the steam-pipe and steam delivery volume, respond the steam supply requirement of refining furnace fast simultaneously; Between LP steam pipeline and the superheater outlet steam-pipe variable valve is set,, turns down the gas inlet variable valve when refining furnace during without vapour; Reduce the coal gas feed rate, reduce by 500 ℃ of the cigarette Wen Zhiyue of wind mixed chamber, reduce gas blower, induced draft fan rotating speed; Close and supply with the refining furnace steam regulating valve; At this moment, the steam that steel-making is on a small quantity come is sent into LP steam pipe network nearby through the combustion gas superheater is little after overheated, and the size of quantity of steam is controlled through variable valve.Described boiler forced draft blower, induced draft fan are realized energy-conservation and control burner hearth cigarette temperature and negative pressure through VFC.Through above control device; When refining furnace during without vapour; Keep superheater through a small amount of coal gas that burns and be in heat state (flame-out) fully; And let and feed an amount of quantity of steam in the superheater tube bank, guarantee superheater equipment operating safety, through variable valve throttling step-down after all incorporate nearby low-pressure saturated steam pipe network through the little superheated steel-making of superheater steam this moment; When refining furnace was used vapour, being in the hot superheater that is equipped with state increased the coal gas amount fast, improves vapor temperature, responds refining furnace fast, and desuperheater is set on superheater, and the control outlet steam temperature is in scope of design.
Working process of the present invention:The distinguished and admirable journey of cigarette: coal gas of converter through gas regulator 2, burner 3 through the combustion air mixed firing of natural gas fired after burner hearth 4 and gas blower 10 are sent into air preheater 7 preheatings; After the burning; About 1400 ℃ of flue gases mix with the part combustion air again, burner hearth 4 cigarette temperature are modulated to 500 ℃ ~ 800 ℃ through mixing wind variable valve 12, behind superheater bank 6, air preheater 7; Below the cigarette temperature drop to 170 ℃, introduce chimneys 9 through boiler induced-draft fan 8 and efflux; The carbonated drink flow process is: it is overheated that about 1.2MPa saturation steam that steel-making converter gasification cooling stack thermophore comes gets into superheater bank 6 through superheater inlet 13; Be controlled to 225 ± 5 ℃ superheated vapour again through desuperheater 15; The superheated vapour outlet divides two-way; Wherein one the tunnel regulate through adjusting control valve 16 and to deliver to refining furnace after export 17, another road is regulated through adjusting control valve 18 and is delivered to plant area's LP steam pipe network after export 19.
When refining furnace is used vapour; The air inlet adjustment that turns on the gas-fire fast door 2; Strengthen the burner hearth 4 incendiary coal gas amounts that get into; Strengthen and give heat (improving 800 ℃ of the 5 cigarette Wen Zhiyue of wind mixed chamber), through 16 control vapor temperature and the steam delivery volumes of the variable valve on the steam-pipe, respond the requirement of refining furnace steam supply fast simultaneously; And nearby LP steam pipeline and superheater outlet steam-pipe between variable valve 18 is set; When refining furnace during without vapour, turn down gas inlet variable valve 2, reduce coal gas feed rate (reducing by 500 ℃ of the cigarette Wen Zhiyue of wind mixed chamber); Reduce gas blower 10, induced draft fan 8 rotating speeds; Close and supply with refining furnace steam regulating valve 16, at this moment, the steam that steel-making is on a small quantity come is sent into LP steam pipe network nearby through superheater is little after overheated; The size of quantity of steam is controlled through variable valve, and the control outlet steam temperature is 225 ± 5 ℃.
Reclaiming experimental installation with the supporting combustion gas superheater of certain ltd's RH refining furnace complementary energy below is example, the present invention is done further describing, but the invention is not restricted to this experimental example.
This experiment uses the combustion gas superheater to comprise burner, burner hearth, wind mixed chamber, suphtr heat-exchanging tube bundle, air preheater, induced draft fan, chimney, gas blower, direct-contact desuperheater; Steam separator, rated pressure 1.6MPa, 201 ℃ of temperature, capacity 3m
3
This furnaceman RH as the time to need pressure be that 1.0MPa, temperature are 210 ± 5 ℃ of superheated vapour 20t/h (maximum 25t/h), every stove smelting cycle 38min is with about 20min of vapour time.
There are 3 100t steel-making converters in the said firm, supporting 3 converter vapourization cooling systems, and supporting 3 150m3 thermophore, institute's producing steam is preferential to be supplied toward making steel the RH stove.The converter vapourization cooling system design ability of steaming is 3 * 13t/h.Thermophore outlet saturated vapour pressure is 1.2 MPa, and converter thermophore outlet quantity of steam is about 39 t/h altogether.The coal gas of converter that company has affluence to diffuse.
Processing requirement: promptly pressure by 1.2 MPa steel-making evaporated cooling system is produced saturation steam with the combustion gas superheater be superheated to 225 ℃ (is 210 ± 5 ℃, pressure >=1.0MPa) to RH stove steam-in, the crucial preposition equipment vacuum pump use of confession RH stove.
Through the coal gas overall equilbrium of full factory, there is coal gas of converter more than needed can satisfy the required coal gas amount of RH stove steam superheating, calorific value is about 6300kJ/Nm
3, pressure is about 7kPa.Through heat calculation, when the refining furnace works better, it is 225 ℃ that superheater is superheated to parameter with saturation steam, during 20t/h, the about 450m of gas furnace coal gas requirement
3/ h; When refining furnace quit work, the coal gas requirement that superheater heat is equipped with state to be needed was 180m
3/ h.
Claims (6)
1. the method with the required high-quality steam of converter waste gas coupling production refining furnace comprises distinguished and admirable journey of cigarette and carbonated drink flow process, it is characterized in that specifically comprising:
A, the distinguished and admirable journey of cigarette: the coal gas that converter produces is sent into the combustion gas superheater behind gas regulator, burner; With natural gas fired, with the warm-up combustion-supporting air mixed firing that gas blower is sent into, gas fume after burning is mixed with the part combustion air again; Burner hearth cigarette temperature is modulated to 500 ℃ ~ 800 ℃ through mixing the wind variable valve; Then behind superheater bank, air preheater, below the cigarette temperature drop to 170 ℃, introduce chimney through boiler induced-draft fan and efflux;
B, carbonated drink flow process: be that the saturation steam that steelmaking system comes is got into superheater bank through combustion gas superheater inlet is overheated; Control superheat steam temperature in scope of design through desuperheater again; The superheated vapour outlet divides two-way; One the tunnel regulates after refining furnace is delivered in outlet through adjusting control valve, and another road is regulated after plant area's LP steam pipe network is delivered in outlet through adjusting control valve.
2. the method with the required high-quality steam of converter waste gas coupling production refining furnace as claimed in claim 1 is characterized in that said saturation steam is the low-quality steam that diffuses of steelmaking system affluence.
3. the method with the required high-quality steam of converter waste gas coupling production refining furnace as claimed in claim 1 is characterized in that described coal gas is blast furnace gas, coal gas of converter or the coke-oven gas that iron and steel enterprise diffuses.
4. realize that claim 1 is described and produce the method for the required high-quality steam of refining furnace for one kind with converter waste gas coupling, described combustion gas superheater be a kind of in short-term, the safety type combustion gas superheater of discontinuous operation pattern.
5. realize the described device that matees the method for producing the required high-quality steam of refining furnace with converter waste gas of claim 1 for one kind; Comprise gas regulator (2), burner (3), burner hearth (4), wind mixed chamber (5), suphtr heat-exchanging tube bundle (6), air preheater (7), induced draft fan (8), gas blower (10), mix wind variable valve (12), steam separator (14), direct-contact desuperheater (15), steam flow controlling valve; It is characterized in that described gas regulator (2) is communicated with the burner (3) that is arranged in the combustion gas superheater burner hearth (4); The burner hearth rear portion is provided with wind mixed chamber (5), and atmosphere is introduced into air preheater (7) and wind mixed chamber (5) respectively through gas blower (10); Air preheater (7) is through pipeline connection burner (3) admission passage; Steel-making saturation steam inlet (13) is communicated with superheated vapour heat-exchanging tube bundle (6) through steam separator (14); Hot steam heat-exchanging tube bundle (6) outlet connects direct-contact desuperheater (15), and direct-contact desuperheater (15) outlet connects refining furnace superheat steam flow adjusting control valve (16) to refining furnace superheated vapour interface (17); The exhanst gas outlet of air preheater (7) connects chimney (9) through induced draft fan (8).
6. device as claimed in claim 5 is characterized in that described direct-contact desuperheater (15) outlet one tunnel connects refining furnace superheat steam flow adjusting control valve (16) to refining furnace superheated vapour interface (17); Another road through LP steam adjusting control valve (18) to low pressure steam pipe network interface (19).
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012100279010A CN102534101B (en) | 2012-02-09 | 2012-02-09 | Method and device using convertor waste gas to produce high-quality steam needed by refining furnace in matching way |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012100279010A CN102534101B (en) | 2012-02-09 | 2012-02-09 | Method and device using convertor waste gas to produce high-quality steam needed by refining furnace in matching way |
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| CN102534101A true CN102534101A (en) | 2012-07-04 |
| CN102534101B CN102534101B (en) | 2013-06-05 |
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| CN2012100279010A Active CN102534101B (en) | 2012-02-09 | 2012-02-09 | Method and device using convertor waste gas to produce high-quality steam needed by refining furnace in matching way |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103160326A (en) * | 2013-03-28 | 2013-06-19 | 新兴铸管股份有限公司 | Method for maintaining gas producer in hot stand-by state |
| CN104793598A (en) * | 2015-04-21 | 2015-07-22 | 张文仲 | Two-stage steam bi-stable control system |
| CN104896959A (en) * | 2015-06-18 | 2015-09-09 | 东营华联石油化工厂有限公司 | Novel heating furnace system capable of efficiently using waste heat |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1962884A (en) * | 2006-12-07 | 2007-05-16 | 昆明阳光数字技术股份有限公司 | Dry-method dust collection and surplus energy recovery device for steel-smelting converter flue gas |
| JP2008241048A (en) * | 2007-03-23 | 2008-10-09 | Jfe Steel Kk | Operation method and device for gas burning boiler |
| CN101871369A (en) * | 2010-05-28 | 2010-10-27 | 河北理工大学 | Overheating turbine generating system for recovering sensible heat of converter gas |
| CN201665688U (en) * | 2010-03-17 | 2010-12-08 | 邯钢集团邯宝钢铁有限公司 | Recovery device of steam in steelmaking with revolving furnace |
-
2012
- 2012-02-09 CN CN2012100279010A patent/CN102534101B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1962884A (en) * | 2006-12-07 | 2007-05-16 | 昆明阳光数字技术股份有限公司 | Dry-method dust collection and surplus energy recovery device for steel-smelting converter flue gas |
| JP2008241048A (en) * | 2007-03-23 | 2008-10-09 | Jfe Steel Kk | Operation method and device for gas burning boiler |
| CN201665688U (en) * | 2010-03-17 | 2010-12-08 | 邯钢集团邯宝钢铁有限公司 | Recovery device of steam in steelmaking with revolving furnace |
| CN101871369A (en) * | 2010-05-28 | 2010-10-27 | 河北理工大学 | Overheating turbine generating system for recovering sensible heat of converter gas |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103160326A (en) * | 2013-03-28 | 2013-06-19 | 新兴铸管股份有限公司 | Method for maintaining gas producer in hot stand-by state |
| CN104793598A (en) * | 2015-04-21 | 2015-07-22 | 张文仲 | Two-stage steam bi-stable control system |
| CN104896959A (en) * | 2015-06-18 | 2015-09-09 | 东营华联石油化工厂有限公司 | Novel heating furnace system capable of efficiently using waste heat |
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| CN102534101B (en) | 2013-06-05 |
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