CN103842759A - Metallurgical plant with efficient waste-heat utilization - Google Patents
Metallurgical plant with efficient waste-heat utilization Download PDFInfo
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- CN103842759A CN103842759A CN201280013726.8A CN201280013726A CN103842759A CN 103842759 A CN103842759 A CN 103842759A CN 201280013726 A CN201280013726 A CN 201280013726A CN 103842759 A CN103842759 A CN 103842759A
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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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B1/00—Methods of steam generation characterised by form of heating method
- F22B1/02—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers
- F22B1/18—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers the heat carrier being a hot gas, e.g. waste gas such as exhaust gas of internal-combustion engines
- F22B1/183—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers the heat carrier being a hot gas, e.g. waste gas such as exhaust gas of internal-combustion engines in combination with metallurgical converter installations
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B13/00—Making spongy iron or liquid steel, by direct processes
- C21B13/14—Multi-stage processes processes carried out in different vessels or furnaces
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B5/00—Making pig-iron in the blast furnace
- C21B5/06—Making pig-iron in the blast furnace using top gas in the blast furnace process
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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
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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
- F27D17/008—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases cleaning gases
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B2100/00—Handling of exhaust gases produced during the manufacture of iron or steel
- C21B2100/20—Increasing the gas reduction potential of recycled exhaust gases
- C21B2100/28—Increasing the gas reduction potential of recycled exhaust gases by separation
- C21B2100/282—Increasing the gas reduction potential of recycled exhaust gases by separation of carbon dioxide
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B2100/00—Handling of exhaust gases produced during the manufacture of iron or steel
- C21B2100/60—Process control or energy utilisation in the manufacture of iron or steel
- C21B2100/62—Energy conversion other than by heat exchange, e.g. by use of exhaust gas in energy production
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B2100/00—Handling of exhaust gases produced during the manufacture of iron or steel
- C21B2100/60—Process control or energy utilisation in the manufacture of iron or steel
- C21B2100/66—Heat exchange
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
- C21C5/56—Manufacture of steel by other methods
- C21C5/562—Manufacture of steel by other methods starting from scrap
- C21C5/565—Preheating of scrap
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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
- Y02P10/122—Reduction of greenhouse gas [GHG] emissions by capturing or storing CO2
-
- 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
- Y02P10/134—Reduction of greenhouse gas [GHG] emissions by avoiding CO2, e.g. using hydrogen
-
- 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
- Y02P10/20—Recycling
-
- 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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- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Combustion & Propulsion (AREA)
- Life Sciences & Earth Sciences (AREA)
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- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
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Abstract
A metallurgical plant has a plant (7) positioned upstream of a steel-generating plant (8) in the production process for steel and has a gas-generating plant (1) which generates an export gas (2). Carbon dioxide and/or water contained in the export gas (2) is at least partially removed from the export gas (2) in a separation device (3). A resulting product gas (4) is heated, before being supplied to the upstream plant (7), in a firing unit (6) through the combustion of a heating gas (11). The heating gas (11) is supplied to the firing unit (6) in quantities significantly greater than those required for heating the product gas (4). That thermal energy which is produced during the combustion of the heating gas (11) and which is not used for heating the product gas (4) is thermally utilized. The utilization may take place within the firing unit (6) through steam generation and/or downstream of the firing unit (6) in relation to the gas flow of the flue gas (12) produced during the combustion of the heating gas (11). In the latter case, the utilization may take place through pre-heating of the heating gas (11) and/or through pre-heating of an oxidation gas (10) used for the combustion of the heating gas (11) and/or through the pre-heating and/or drying of raw materials (20, 21) to be supplied to the upstream plant (7) and/or to the gas-generating plant (1).
Description
The present invention relates to the operation method for metallurgical technology device, this device has the gas generating unit that is positioned at the device of steel device upstream processed and produces implication in the preparation technology of steel,
-wherein, in separation equipment, will be contained in this carbon dioxide and/or water removal from this is worked off one's feeling vent one's spleen at least partly in working off one's feeling vent one's spleen, and consequent gas product (Produktgas) is heated by combustion gas feeding before upstream device in combustion apparatus.
The invention still further relates to metallurgical technology device, it so forms, so that it implements this operation method with continuously-running duty.
This class metallurgical technology device and affiliated operation method are normally known.
In metallurgical technology device, particularly, in the device of iron processed and steel industry processed, need the heat energy under a large amount of high temperature.Therefore in this class device, produce a large amount of used heat.The used heat part producing is in order to heating intermediate product that produce or pending-particularly process gas in this metallurgical technology device.Described used heat is also partly in order to drive generator through the equipment that produces steam together with the turbine in downstream.
The object of the invention is to, the possibility of the metallurgical technology device that more efficiently utilizes the described type of beginning is provided.
This object is that the operation method of the feature by having claim 1 is realized.The favourable embodiment of operation method of the present invention is the theme of dependent claims 2-11.
According to the invention provides, the operation method by the metallurgical technology device of the described type of following configuration beginning:
-feeding combustion gas with large volume to combustion apparatus, this volume is obviously greater than required for heating products gas,
-the heat energy that wherein produces in the time of fuel gas buring, as long as it is not for heating this gas product, in this combustion apparatus by its heat utilization, the air-flow of the flue gas forming during for generation of steam and/or based on combustion gas, is used for this combustion gas of preheating and/or preheated burning combustion gas oxic gas used and/or the raw material for preheating and/or the described upstream device of dry infeed and/or gas generating unit in this combustion apparatus downstream.
In a preferred embodiment of the invention, the flue gas forming in the time of combustion gas is first for generation of steam and subsequently just for heating products gas.
Need in some cases, the temperature substantially constant of gas product remains on rated temperature.The excess Temperature of this situation, and this flue gas in this way, is the temperature that regulates the flue gas of heating products gas, can after for generation of steam He before heating products gas, cold air be sneaked in flue gas.
In a particularly preferred embodiment of the present invention, provide,
-heating of gas product is limited in to a medium temperature, described medium temperature is lower than use the required reaction temperature of this gas product in upstream device, although produced for this reason required heat energy in the time of combustion gas, and
-will be heated to reaction temperature from medium temperature through the gas product of heating by partial oxidation gas product.
If the heat energy of flue gas is enough large, can utilize the heat energy of flue gas to heat conduction oil in the downstream of this combustion apparatus.
Can use the exit gas partly being produced by gas generating unit as combustion gas.Alternatively or additionally, also can use the Process Gas of concentrate carbon dioxide and the water that produce in the time of removal carbon dioxide from work off one's feeling vent one's spleen and water as combustion gas.If Process Gas is not enough to smooth combustion or containing required heat energy described in this, can in this Process Gas, sneaks into a kind of other fuel gas and maybe this Process Gas can be burnt with together with other fuel gas.
Usually surging in time of the amount of the amount of working off one's feeling vent one's spleen producing and/or composition and the related to this Process Gas also producing to some extent and/or composition.Therefore, in many cases using use as combustion gas work off one's feeling vent one's spleen part or Process Gas intermediate storage in the low pressure-air accumulator that is disposed at combustion apparatus upstream, be suitable.
In many cases, when upstream device is moved, produce fuel gas.In this fuel gas can being sneaked at least partly and working off one's feeling vent one's spleen.Alternatively or additionally, can be by this fuel gas as combustion gas.While particularly needs, the fuel gas of finally mentioning can be sneaked in the Process Gas of above-mentioned concentrate carbon dioxide and water or burn together with this Process Gas.
In addition, in the time that moving, upstream device also can produce hot top gas.In the case, be contained in that heat energy in top gas can be used for that preheating feeds gas product before combustion apparatus and/or for generation of steam.That is to say, this hot top gas can be fuel gas or non-combustible gas.
This upstream device can for example be designed to blast furnace, melting reduction device, melting unit or direct reduction unit.This gas generating unit can for example be designed to coal gasification apparatus or Metal Melting device, particularly molten iron device or melting reduction device.
In addition, described object is the metallurgical technology device realization of the feature by having claim 12.By the invention provides, so metallurgical technology device of the described type of configuration beginning, so that it implements operation method of the present invention with continuously-running duty.
Other advantage and details are also provided by reference to the accompanying drawings by the following explanation of embodiment.In schematic diagram:
Fig. 1 illustrates a kind of metallurgical technology device with schematic diagram,
Fig. 2 to be to illustrate out the fragment figure of metallurgical technology device of Fig. 1, and
Fig. 3 may scheme with the one of the metallurgical technology device that illustrates out Fig. 1.
Press Fig. 1, metallurgical technology device has gas generating unit 1.This gas generating unit 1 for example can be designed to coal gasification apparatus or Metal Melting device.In the situation that being designed to Metal Melting device, it can be designed to molten iron device-also especially for blast furnace, particularly oxygen blown converter-or be melting reduction device.Oxygen blown converter is a kind of blast furnace, wherein use industrial pure oxygen as hot blast, and the blast furnace gas forming can turn back to this blast furnace.
This gas generating unit 1 produces gas 2 in the time of operation, is called and works off one's feeling vent one's spleen 2 below.This works off one's feeling vent one's spleen 2 containing combustible component and in addition carbonated, water and conventionally also nitrogenous.The existence of nitrogen dioxide and water in Fig. 1 by the additional marking " CO in working off one's feeling vent one's spleen
2" and " H
2o " represent.
Work off one's feeling vent one's spleen 2-wholly or in part-feed in separation equipment 3.In separation equipment 3, processing works off one's feeling vent one's spleen only processes this section port gas 2 of infeed separation equipment 3 when 2-needs.In this separation equipment 3, particularly work off one's feeling vent one's spleen from this to remove wholly or in part 2 and be contained in the carbon dioxide of working off one's feeling vent one's spleen in 2 and/or be contained in the water of working off one's feeling vent one's spleen in 2.Thus, produce on the one hand gas product 4, and work off one's feeling vent one's spleen compared with 2, in gas product 4 dilution carbon dioxide and water.This passes through additional marking " CO in Fig. 1
2-" and " H
2o-" represent.On the other hand production process gas 5-be often called tail gas-, carbon dioxide and/or water have therein concentrated.This passes through additional marking " CO in Fig. 1
2+ " and " H
2o+ " represent.
First this gas product 4 is fed to combustion apparatus 6, and feed therefrom upstream device 7.This upstream device 7 is the devices that are configured in steel device processed 8 upstreams in the production technology of steel.This upstream device 7 for example can be designed to blast furnace, melting reduction device, melting unit or direct reduction unit.
In combustion apparatus 6, this gas product 4 is heated in gas product-heat exchanger 9.At this moment keep the chemical composition of this gas product 4-at least substantially-constant.Only the temperature of gas product 4 changes to some extent.
In the time that combustion apparatus 6 burns, in combustion apparatus 6, use oxic gas 10 that combustion gas 11 is burnt into flue gas 12.Both all feed gas 10,11 in combustion apparatus 6.Oxic gas 10 can be normal air especially.
If generation steam, in evaporimeter 13-Fig. 2 especially obviously visible-according to the gas flow arrangement of flue gas 12 in gas product-heat exchanger 9 upstreams.Therefore, in the time of combustion gas 11 produce flue gas 12 first for generation of steam, and subsequently just for heating work off one's feeling vent one's spleen 4.
Optionally can even make the steam superheating producing by means of flue gas 12.In the case, possible superheater (not shown) according to the gas flow arrangement of flue gas 12 in gas product-heat exchanger 9 upstreams, optionally also in evaporimeter 13 upstreams.In addition, can preheating water to be evaporated.In the case, corresponding preheater (not shown) according to the gas flow arrangement of flue gas 12 in gas product-heat exchanger 9 downstreams.
Alternatively or except for generation of steam additionally, also can in unit 16-19, utilize flue gas 12, these units according to the gas flow arrangement of flue gas 12 in combustion apparatus 6 downstreams.
For example can be in gas-to-gas heat exchanger 16 preheated fuel gas 11.Alternatively or except preheated fuel gas 11 additionally, can be in oxic gas-heat exchanger 17 preheating oxic gas 10.The preheating of combustion gas 11 and/or oxic gas 10 was carried out certainly before described gas 10,11 is fed to combustion apparatus 6.
In addition can-alternatively or except preheated fuel gas 11 and/or oxic gas 10 additionally-in raw material processing device 18 dry and/or preheating by the raw material 20 feeding in upstream device 7.Additionally or alternatively, can in another raw material processing device 19, be dried with similar method and/or preheating by the raw material 21 feeding in gas generating unit.Can consider especially iron ore or coke as raw material 21.
If the unnecessary heat energy of flue gas 12 is available in addition, can in oil heat exchanger 23, utilize in these combustion apparatus 6 downstreams in addition the heat energy heating conduction oil 24 of flue gas 12.
In some cases, regulate the temperature of the flue gas 12 of heating products gas 4 to be suitable for.For this purpose, can in flue gas 12, sneak into by Fig. 2 cold air 25.In the case, utilizing after flue gas 12 produces steam, still-certainly-before heating products gas 4, sneak into cold air 25.
Can be in burner 6 heating products gas 4 until reaction temperature T (usually above 800 ℃), this gas product 4 must have this temperature, using in upstream device 7.But in many cases, the heating of gas product 4 is restricted to medium temperature T ' lower than reaction temperature T in profit.Although produce in the time of combustion gas 11 this (heating is until reaction temperature T) required heat energy, this is also suitable for.This medium temperature T ' for example can be approximately 400 ℃-Yue 600 ℃.If gas product 4 heats the highest medium temperature T ' that only arrives in combustion apparatus 6, press Fig. 2, in combustion apparatus 6 through the gas product 4 of heating by gas product 4 partial oxidation in oxidation furnaces 26 from middle temperature T ' be heated to reaction temperature T.For this purpose, conventionally except gas product 4, additionally in oxidation furnaces 26, feed oxic gas 27, as commercially pure oxygen (oxygen content at least 90%).
Can be chosen in arbitrarily in principle the combustion gas 11 of burning in combustion apparatus 6.Combustion gas 11 can feed metallurgical technology device from outside.Or combustion gas 11 can be the gas producing in metallurgical technology device.According to Fig. 3, for example, can use 2 the part of working off one's feeling vent one's spleen being produced by gas generating unit 1 as combustion gas 11.Alternatively or additionally, also can utilize Process Gas 5 as combustion gas 11.As long as need, can in Process Gas 5, sneak into other fuel gas 28.Or of course, as long as need, other fuel gas 28 burning together with Process Gas 5 in the independent burner of combustion apparatus 6 described in making.
If use work off one's feeling vent one's spleen a part of 2 or Process Gas 5 as combustion gas 11, preferably arrange low pressure-air accumulator 29 in the input channel of corresponding gas 2,5 that leads to this combustion apparatus 6.This low pressure-air accumulator 29 is for compensating the fluctuation of amount and/or the fluctuation of composition that occur in the time producing implication 2 and/or Process Gas 5.In low pressure-air accumulator 29, have air pressure P, it is slightly larger than atmospheric pressure.
In many cases, in the time that moving, upstream device 7 produces heat and/or flammable gas 30.This gas 30 is often called top gas 30.If this top gas 30 is flammable, can by this top gas 30-completely or partially-sneak into and work off one's feeling vent one's spleen in 2.Alternatively or additionally top gas 30 can be used as to combustion gas 11.Optionally can with work off one's feeling vent one's spleen 2 and/or Process Gas 5 together with use.In the case, top gas 30 especially can be the same with that fuel gas 28, and it can sneak in Process Gas 5 or therewith burning.
If this top gas 30 is hot, can be by heat energy contained in this top gas 30 for this gas product 4 of preheating before gas product 4 feeds burner 6 and/or for generation of steam while needing (comprise overheated).This dots in Fig. 3.
The present invention has many advantages.The heat energy that particularly can produce in metallurgical technology device with the efficient utilization of relatively simple method and the flammable gas of generation.
Above-mentioned description is only for setting forth the present invention.On the contrary, protection scope of the present invention is only determined by appended claim.
Reference numeral table:
1 gas generating unit
2 work off one's feeling vent one's spleen
3 separation equipments
4 gas products
5 Process Gas
6 combustion apparatus
7 upstream device
8 steel devices processed
9 gas products-heat exchanger
10,27 oxic gas
11 combustion gas
12 flue gases
13 evaporimeters
14 turbines
15 generators
16-19 unit
16 combustion gas-heat exchanger
17 oxic gas-heat exchanger
18,19 raw material processing device
20,21 raw materials
23 oil heat exchangers
24 conduction oils
25 cold airs
26 oxidation furnaces
28 other incendivity gas
29 low pressure-air accumulator
30 top gas
P air pressure
T reaction temperature
T ' medium temperature
Claims (16)
1. for the operation method of metallurgical technology device, this device has the device (7) that is positioned at steel device processed (8) upstream in the preparation technology of steel and the gas generating unit (1) that produces implication (2),
-wherein, in separation equipment (3), work off one's feeling vent one's spleen from this at least partly (2) and remove being contained in this work off one's feeling vent one's spleen carbon dioxide in (2) and/or water, and make consequent gas product (4) feed upstream device (7) before in combustion apparatus (6) by combustion gas (11) heating
-wherein, feeding combustion gas (11) with large volume to combustion apparatus (6), this volume is obviously greater than required for heating products gas (4),
-wherein, the heat energy producing in the time that combustion gas (11) is burnt, as long as it is not for heating this gas product (4), in combustion apparatus (6) by its heat utilization, the air-flow of the flue gas (12) producing during for generation of steam and/or based on combustion gas (11), be used for preheated fuel gas (11) and/or preheated burning combustion gas (11) oxic gas (10) used and/or the raw material (20,21) for preheating and/or the described upstream device of dry infeed (7) and/or gas generating unit (1) in this combustion apparatus (6) downstream.
2. according to the operation method of claim 1, it is characterized in that, the flue gas (12) producing when combustion gas (11) is first for generation of steam, and afterwards just for heating products gas (4).
3. according to the operation method of claim 2, it is characterized in that, for regulating the temperature of flue gas (12) of heating products gas (4), after for generation of steam and at heating products gas (4), before cold air (25) is sneaked in flue gas (12).
4. according to claim 1,2 or 3 operation method, it is characterized in that,
-heating of gas product (4) is limited in to a medium temperature (T '), described medium temperature (T ') lower than use the required reaction temperature (T) of this gas product (4) in upstream device (7), although produced for this reason required heat energy when combustion gas (11), and
-by partial oxidation gas product (4), the gas product (4) through heating is heated to reaction temperature (T) from medium temperature (T ').
5. according to the operation method of one of the claims, it is characterized in that, utilize the heat energy of combustion gas (12) to be used for heating conduction oil (24) in the downstream of this combustion apparatus (6).
6. according to the operation method of one of the claims, it is characterized in that, use the part of (2) and/or optionally sneak into other fuel gas (28) or burning together with described other fuel gas (28) as combustion gas-the latter at the Process Gas (5) of being removed concentrate carbon dioxide and water that carbon dioxide produces during with water by work off one's feeling vent one's spleen (2) of working off one's feeling vent one's spleen being produced by gas generating unit (1).
7. according to the operation method of claim 6, it is characterized in that, using the described part using as combustion gas (11) work off one's feeling vent one's spleen (2) or Process Gas (5) intermediate storage being disposed in the low pressure-air accumulator (29) of combustion apparatus (6) upstream.
8. according to the operation method of one of the claims, it is characterized in that, in the time that upstream device (7) is moved, produce flammable top gas (30), and described flammable top gas (30) is sneaked in work off one's feeling vent one's spleen (2) and/or as combustion gas (11) at least partly.
9. according to the operation method of one of claim 1-7, it is characterized in that, in the time that upstream device (7) is moved, produce hot top gas (30), and be contained in that heat energy in described top gas (30) feeds gas product (4) before of combustion apparatus (6) for preheating and/or for generation of steam.
10. according to the operation method of one of the claims, it is characterized in that, described upstream device (7) is designed to blast furnace, melting reduction device, melting unit or direct reduction unit.
11. according to the operation method of one of the claims, it is characterized in that, described gas generating unit (1) is designed to coal gasification apparatus or Metal Melting device, particularly molten iron device or melting reduction device.
12. metallurgical technology devices, it so designs, so that it is implemented according to the operation method of one of the claims with continuously-running duty, it comprises:
-steel device processed (8),
The upstream device (7) of-steel device processed (8),
-produce the gas generating unit (1) of implication (2),
-separation equipment (3), for removing at least partly work off one's feeling vent one's spleen (2) contained carbon dioxide and/or water, produces gas product (4),
-combustion apparatus (6), it has the pipeline that gas product (4) is fed to combustion apparatus (6) from separation equipment (3) and feeds the pipeline upstream device (7) with the gas product for heating at combustion apparatus (6) that passes into upstream device (7) from combustion apparatus (6)
-for combustion gas (11) being fed to the pipeline of combustion apparatus (6),
-for oxic gas (10) being fed to the pipeline of combustion apparatus (6),
Wherein, exist at least one to be selected from following equipment:
-at the inner evaporimeter for generation of steam (13) of combustion apparatus (6),
-for the gas-to-gas heat exchanger (16) of preheated fuel gas (11),
-for the oxic gas-heat exchanger (17) of preheating oxic gas (10),
-for the raw material processing device (18,19) of preheating and/or dried feed (20,21), its feed is to upstream device (7) and/or gas generating unit (1).
13. according to the metallurgical technology device of claim 12, it is characterized in that, exists cold air is fed to the pipeline in flue gas (12).
14. according to the metallurgical technology device of one of claim 12 or 13, it is characterized in that, exist for intermediate storage and work off one's feeling vent one's spleen (2) or the low pressure-air accumulator (29) of Process Gas (5), wherein, described low pressure-air accumulator (29) is disposed at the upstream of combustion apparatus (6).
15. according to the metallurgical technology device of one of claim 12-14, it is characterized in that, described upstream device (7) is blast furnace, melting reduction device, melting unit or direct reduction unit.
16. according to the metallurgical technology device of one of claim 12-15, it is characterized in that, described gas generating unit (1) is coal gasification apparatus, Metal Melting device, particularly molten iron device or melting reduction device.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ATA368/2011 | 2011-03-17 | ||
| ATA368/2011A AT511243B1 (en) | 2011-03-17 | 2011-03-17 | HÜTTENTECHNISCHE ANLAGE WITH EFFICIENT DOWNWATER USE |
| PCT/EP2012/053975 WO2012123320A1 (en) | 2011-03-17 | 2012-03-08 | Metallurgical plant with efficient waste-heat utilization |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103842759A true CN103842759A (en) | 2014-06-04 |
| CN103842759B CN103842759B (en) | 2016-10-12 |
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|---|---|---|---|
| CN201280013726.8A Expired - Fee Related CN103842759B (en) | 2011-03-17 | 2012-03-08 | There is the metallurgical technology device of efficient Waste Heat Reuse |
Country Status (11)
| Country | Link |
|---|---|
| US (1) | US20140000535A1 (en) |
| KR (1) | KR20140019389A (en) |
| CN (1) | CN103842759B (en) |
| AT (1) | AT511243B1 (en) |
| AU (1) | AU2012228448B2 (en) |
| BR (1) | BR112013023472A2 (en) |
| CA (1) | CA2830210A1 (en) |
| RU (1) | RU2610999C2 (en) |
| UA (1) | UA113509C2 (en) |
| WO (1) | WO2012123320A1 (en) |
| ZA (1) | ZA201306954B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2738268A1 (en) * | 2012-11-29 | 2014-06-04 | Siemens VAI Metals Technologies GmbH | Method for reduction of metal oxides to metallised material in a direct reduction process |
| RU2015155924A (en) * | 2013-05-29 | 2017-07-04 | Эр Продактс Энд Кемикалз, Инк. | WASTE GAS CLEANING, SEPARATION AND RECIRCULATION |
| EP3034631A1 (en) * | 2014-12-17 | 2016-06-22 | Primetals Technologies Austria GmbH | Direct reduction method with gas cooling |
| CN105737123B (en) * | 2016-04-15 | 2017-10-13 | 中冶华天工程技术有限公司 | Blast furnace gas distributed energy resource system |
| CN107806770B (en) * | 2017-11-20 | 2024-06-25 | 湖北金盛兰冶金科技有限公司 | Energy-saving sintering system |
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- 2012-03-08 AU AU2012228448A patent/AU2012228448B2/en not_active Ceased
- 2012-03-08 BR BR112013023472A patent/BR112013023472A2/en not_active IP Right Cessation
- 2012-03-08 KR KR1020137027420A patent/KR20140019389A/en not_active Application Discontinuation
- 2012-03-08 RU RU2013146337A patent/RU2610999C2/en not_active IP Right Cessation
- 2012-03-08 UA UAA201311033A patent/UA113509C2/en unknown
- 2012-03-08 CN CN201280013726.8A patent/CN103842759B/en not_active Expired - Fee Related
- 2012-03-08 WO PCT/EP2012/053975 patent/WO2012123320A1/en active Application Filing
- 2012-03-08 US US14/005,658 patent/US20140000535A1/en not_active Abandoned
- 2012-03-08 CA CA2830210A patent/CA2830210A1/en not_active Abandoned
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Also Published As
| Publication number | Publication date |
|---|---|
| AT511243A1 (en) | 2012-10-15 |
| AU2012228448B2 (en) | 2016-08-25 |
| UA113509C2 (en) | 2017-02-10 |
| AT511243B1 (en) | 2013-01-15 |
| KR20140019389A (en) | 2014-02-14 |
| ZA201306954B (en) | 2014-08-27 |
| BR112013023472A2 (en) | 2016-12-06 |
| CN103842759B (en) | 2016-10-12 |
| AU2012228448A1 (en) | 2013-10-03 |
| US20140000535A1 (en) | 2014-01-02 |
| CA2830210A1 (en) | 2012-09-20 |
| RU2013146337A (en) | 2015-04-27 |
| WO2012123320A1 (en) | 2012-09-20 |
| RU2610999C2 (en) | 2017-02-17 |
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