CN1916187A - Tecnique and euippment for making iron by using blast furnace through pure oxygen and coal gas - Google Patents
Tecnique and euippment for making iron by using blast furnace through pure oxygen and coal gas Download PDFInfo
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- CN1916187A CN1916187A CNA2006100477209A CN200610047720A CN1916187A CN 1916187 A CN1916187 A CN 1916187A CN A2006100477209 A CNA2006100477209 A CN A2006100477209A CN 200610047720 A CN200610047720 A CN 200610047720A CN 1916187 A CN1916187 A CN 1916187A
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title claims abstract description 56
- 229910052742 iron Inorganic materials 0.000 title claims abstract description 28
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 title claims abstract description 25
- 239000003034 coal gas Substances 0.000 title claims description 7
- 239000007789 gas Substances 0.000 claims abstract description 75
- 239000000428 dust Substances 0.000 claims abstract description 24
- 238000000034 method Methods 0.000 claims abstract description 21
- 239000000571 coke Substances 0.000 claims abstract description 18
- 238000010248 power generation Methods 0.000 claims abstract description 14
- 229910001882 dioxygen Inorganic materials 0.000 claims abstract description 13
- 239000008188 pellet Substances 0.000 claims abstract description 13
- 230000004907 flux Effects 0.000 claims abstract description 10
- 239000002184 metal Substances 0.000 claims abstract description 3
- 229910052751 metal Inorganic materials 0.000 claims abstract description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 18
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 16
- 239000001301 oxygen Substances 0.000 claims description 16
- 229910052760 oxygen Inorganic materials 0.000 claims description 16
- 238000002347 injection Methods 0.000 claims description 13
- 239000007924 injection Substances 0.000 claims description 13
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 9
- 239000001569 carbon dioxide Substances 0.000 claims description 9
- 239000000919 ceramic Substances 0.000 claims description 9
- 230000005484 gravity Effects 0.000 claims description 9
- 238000001179 sorption measurement Methods 0.000 claims description 9
- 238000006243 chemical reaction Methods 0.000 claims description 6
- -1 alkaline sinter Substances 0.000 claims description 5
- 239000002994 raw material Substances 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 2
- 239000002893 slag Substances 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 description 7
- 239000003638 chemical reducing agent Substances 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 229910000805 Pig iron Inorganic materials 0.000 description 1
- 210000001015 abdomen Anatomy 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000011031 large-scale manufacturing process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 238000002407 reforming Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000009865 steel metallurgy Methods 0.000 description 1
- 238000009628 steelmaking Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 239000012498 ultrapure water Substances 0.000 description 1
Classifications
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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
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B5/00—Making pig-iron in the blast furnace
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B5/00—Making pig-iron in the blast furnace
- C21B5/001—Injecting additional fuel or reducing agents
-
- 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
- F27D17/20—Arrangements for treatment or cleaning of waste gases
-
- 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
- C21B2100/40—Gas purification of exhaust gases to be recirculated or used in other metallurgical processes
- C21B2100/44—Removing particles, e.g. by scrubbing, dedusting
-
- 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
-
- 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
- C21C2100/00—Exhaust gas
- C21C2100/06—Energy from waste gas used in other processes
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B1/00—Preliminary treatment of ores or scrap
- C22B1/14—Agglomerating; Briquetting; Binding; Granulating
- C22B1/16—Sintering; Agglomerating
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B5/00—General methods of reducing to metals
- C22B5/02—Dry methods smelting of sulfides or formation of mattes
- C22B5/12—Dry methods smelting of sulfides or formation of mattes by gases
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Environmental & Geological Engineering (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
- Manufacture Of Iron (AREA)
Abstract
纯氧煤气高炉炼铁工艺和设备，其工艺过程为，将由球团矿、碱性烧结矿、焦炭、熔剂构成的矿料从炉顶送入高炉中，其中每吨铁配焦炭170－200kg；向高炉中同时鼓入纯氧，纯氧的用量为每吨铁水120－200Nm3；同时向高炉中鼓入经小球式煤气热风炉加压预热的煤气对金属矿进行还原，加压预热的煤气温度为900℃－1150℃，煤气压力为0.1－0.6MPa；还原产生的煤气经除尘系统进行净化降温，通过管道送至余压发电装置，进行再利用，然后回收至煤气罐或直接循环使用。本发明采用上述工艺后，高炉的生产率大幅度提高，高炉的利用系数可达6－8吨铁/m3·D，熔剂消耗量减小2/3，渣量减小2/3，每吨铁综合消耗可达到492kgCE/t，炉顶煤气可回收发电。
Pure oxygen gas blast furnace ironmaking process and equipment. The process is to send the ore consisting of pellets, alkaline sintered ore, coke, and flux from the furnace top into the blast furnace, of which 170-200kg of coke is added to each ton of iron; Bubble pure oxygen into the blast furnace at the same time, the amount of pure oxygen is 120-200Nm 3 per ton of molten iron; at the same time blow into the blast furnace gas that has been pressurized and preheated by a small ball gas hot blast stove to reduce the metal ore, pressurize and preheat The temperature of the hot gas is 900°C-1150°C, and the pressure of the gas is 0.1-0.6MPa; the gas produced by the reduction is purified and cooled by the dust removal system, and sent to the residual pressure power generation device through the pipeline for reuse, and then recycled to the gas tank or directly recycle. After the above process is adopted in the present invention, the productivity of the blast furnace is greatly improved, the utilization factor of the blast furnace can reach 6-8 tons of iron/m 3 ·D, the consumption of flux is reduced by 2/3, and the amount of slag is reduced by 2/3. The comprehensive consumption of iron can reach 492kgCE/t, and the top gas can be recycled for power generation.
Description
(一)技术领域：(1) Technical field:
本发明涉及钢铁冶金行业中高炉炼铁工艺，主要是用纯氧代替高炉鼓风，用高含氢煤气经预热鼓入高炉代替大部分焦炭的炼铁工艺。The invention relates to a blast furnace ironmaking process in the iron and steel metallurgy industry, which mainly uses pure oxygen to replace the blast furnace blast, and uses high hydrogen-containing gas to blow into the blast furnace through preheating to replace most of the coke.
(二)背景技术：(two) background technology:
目前，世界上3/4的生铁和炼钢用铁水都是用传统的高炉炼铁工艺生产的，近代的传统高炉炼铁工艺，由于采用富氧、喷煤、大型化等项新技术，使当代高炉炼铁技术有了长足的发展。At present, 3/4 of the world's pig iron and molten iron for steelmaking are produced by the traditional blast furnace ironmaking process. The modern traditional blast furnace ironmaking process uses new technologies such as oxygen enrichment, coal injection, and large-scale production. Contemporary blast furnace ironmaking technology has made great progress.
因为高纯水煤气生产技术(见专利200610045968.1))和煤气、焦炉煤气、天然气重整技术的发展，工业化生产高质量、高纯度、高含氢、低成本还原气体工艺已经成熟，所以发展以上述煤气为主要还原剂的纯氧高炉炼铁工艺已经可以实现。Due to the development of high-purity water gas production technology (see patent 200610045968.1)) and coal gas, coke oven gas, and natural gas reforming technology, the industrial production of high-quality, high-purity, high-hydrogen-containing, low-cost reducing gas technology has matured, so the development of the above-mentioned gas The pure oxygen blast furnace ironmaking process as the main reducing agent has been realized.
经检索未发现以煤气为还原剂，以喷吹纯氧代替预热鼓风的纯氧煤气高炉的工艺和设备。The technology and equipment of the pure oxygen gas blast furnace using gas as the reducing agent and injecting pure oxygen instead of preheating blast were not found after searching.
(三)发明内容(3) Contents of the invention
本发明的目的在于为传统高炉炼铁工艺提供一种全新的技术改造工艺及设备，即“纯氧煤气高炉炼铁工艺和设备”。The purpose of the present invention is to provide a brand-new technological transformation process and equipment for the traditional blast furnace ironmaking process, that is, "pure oxygen gas blast furnace ironmaking process and equipment".
采用的技术方案为：The technical solutions adopted are:
纯氧煤气高炉炼铁工艺包括如下过程：The pure oxygen gas blast furnace ironmaking process includes the following processes:
1、将由球团矿、碱性烧结矿、焦炭、熔剂构成的矿料从炉顶送入高炉中，其中每吨铁水配焦炭170-200kg；1. Send the ore material composed of pellets, alkaline sinter, coke and flux from the furnace top into the blast furnace, among which 170-200kg of coke is added to each ton of molten iron;
2、向高炉中鼓入纯氧，纯氧的用量为每吨铁水120-200Nm3；同时向高炉中鼓入经小球式煤气热风炉加压预热的煤气对金属矿进行还原，加压预热的煤气温度为900-1150℃，煤气压力为0.1-0.6MPa；2. Bubble pure oxygen into the blast furnace, the amount of pure oxygen is 120-200Nm 3 per ton of molten iron; at the same time, blow into the blast furnace the gas that has been pressurized and preheated by a small ball gas hot blast stove to reduce the metal ore, pressurize The preheated gas temperature is 900-1150°C, and the gas pressure is 0.1-0.6MPa;
3、还原产生的煤气经除尘系统进行净化降温，通过管道送至余压发电装置，进行再利用，然后回收至煤气罐或直接循环使用。3. The gas generated by the reduction is purified and cooled by the dust removal system, and sent to the residual pressure power generation device through the pipeline for reuse, and then recycled to the gas tank or directly recycled.
纯氧煤气高炉炼铁设备，包括上料系统、高炉重力除尘器、陶瓷管式除尘器、布袋除尘装置、二氧化碳变压吸附装置、余压发电装置，其特征是在高炉炉腹的周围开设有多个煤气喷射口和多个氧气喷射口，在高炉炉体外设置一煤气预热小球式热风炉，该煤气球式热风炉通过管路与高炉炉腹周围开设的多个煤气喷射口相联通；煤气预热球式热风炉出口端的管路上装设有煤气防爆装置，高炉炉腹上开设的多个氧气喷射口通过管路与氧气源相联通。Pure oxygen gas blast furnace ironmaking equipment, including feeding system, blast furnace gravity dust collector, ceramic tube dust collector, bag dust removal device, carbon dioxide pressure swing adsorption device, residual pressure power generation device, is characterized in that there are A plurality of gas injection ports and a plurality of oxygen injection ports, a gas preheating ball hot blast stove is installed outside the blast furnace body, and the gas balloon type hot blast stove is connected with multiple gas injection ports around the blast furnace bosh through pipelines A gas explosion-proof device is installed on the pipeline at the outlet end of the gas preheating ball hot blast stove, and multiple oxygen injection ports opened on the bosh of the blast furnace communicate with the oxygen source through the pipeline.
本发明的反应过程所产生的煤气经重力除尘器、陶瓷管式除尘器和布袋除尘及二氧化碳变压吸附装置进行净化和降温。经净化和降温的炉顶气通过管道通至余压发电装置进行再利用后回收至煤气罐，也可以循环使用。The coal gas produced in the reaction process of the present invention is purified and cooled through a gravity dust collector, a ceramic tube dust collector, a bag dust collector and a carbon dioxide pressure swing adsorption device. The purified and cooled furnace top gas is passed through the pipeline to the residual pressure power generation device for reuse and then recovered to the gas tank, which can also be recycled.
本发明采用上述工艺后，高炉的生产率大幅度提高，高炉的利用系数可达6-8吨铁/m3·D，熔剂消耗量减小2/3，渣量减小2/3，每吨铁综合消耗可达到492kgCE/t，炉顶煤气可回收发电。After the above process is adopted in the present invention, the productivity of the blast furnace is greatly improved, the utilization factor of the blast furnace can reach 6-8 tons of iron/m 3 ·D, the consumption of flux is reduced by 2/3, and the amount of slag is reduced by 2/3. The comprehensive consumption of iron can reach 492kgCE/t, and the top gas can be recycled for power generation.
(四)附图说明(4) Description of drawings
图1是本发明设备的系统图。Fig. 1 is a system diagram of the apparatus of the present invention.
(五)具体实施方式(5) Specific implementation methods
实施例一Embodiment one
纯氧煤气高炉炼铁工艺：Pure oxygen gas blast furnace ironmaking process:
将球团矿、碱性烧结矿、焦炭、熔剂从炉顶送入高炉中，其中每吨铁配焦炭180kg；然后向高炉中鼓入纯氧，并同时将由球式热风炉加压预热的煤气喷射至高炉内直接对球团矿和含铁原料进行还原，每吨铁水鼓氧量为130Nm3，煤气经球式热风炉加压预热到1000℃-1100℃，煤气压力为0.2MPa。反应过程所产生的煤气经重力除尘器、陶瓷管式除尘器和布袋除尘器及二氧化碳变压吸附装置进行净化降温，经净化和降温的炉顶气通过管道通至余压发电装置进行再利用后回收至煤气罐，当然，也可以循环使用。Send the pellets, alkaline sinter, coke, and flux from the top of the furnace into the blast furnace, in which 180kg of coke is added to each ton of iron; The gas is injected into the blast furnace to directly reduce the pellets and iron-containing raw materials. The oxygen volume per ton of molten iron is 130Nm 3 . The gas is preheated to 1000°C-1100°C by the ball hot blast stove, and the gas pressure is 0.2MPa. The coal gas produced in the reaction process is purified and cooled by gravity dust collector, ceramic tube dust collector, bag filter and carbon dioxide pressure swing adsorption device. The purified and cooled furnace top gas is passed through the pipeline to the residual pressure power generation device for reuse. Recycled to the gas tank, of course, can also be recycled.
纯氧煤气高炉炼铁设备，包括上料装置1、高炉2、重力除尘器4、陶瓷管式除尘器5、布袋除尘器6、二氧化碳变压吸附装置7、余压发电装置8，其结构特点是在高炉2的炉腹上下分别开设有多个煤气喷射口和多个氧气喷射口，腹部的外围分别设置有煤气送入盘管9和氧气送入盘管3，多个煤气喷入口分别引出支管与煤气送入盘管9相联通，多个氧气喷入口分别引出支管与氧气送入盘管3相联通；在高炉2的外部设置有一煤气预热小球式热风炉11，该煤气预热小球式热风炉11通过煤气管12与煤气送入盘管9相联通，煤气管12上安装有煤气防爆安全装置10。Pure oxygen gas blast furnace ironmaking equipment, including feeding device 1, blast furnace 2, gravity dust collector 4, ceramic tube dust collector 5, bag filter 6, carbon dioxide pressure swing adsorption device 7, residual pressure power generation device 8, its structural characteristics A plurality of gas injection ports and a plurality of oxygen injection ports are respectively opened on the upper and lower sides of the bosh of the blast furnace 2, and the gas input coil 9 and the oxygen input coil 3 are respectively arranged on the periphery of the abdomen, and the plurality of gas injection ports lead out respectively. The branch pipe is connected with the gas feeding coil 9, and a plurality of oxygen injection inlets respectively lead out the branch pipes to communicate with the oxygen feeding coil 3; a gas preheating ball type hot blast stove 11 is arranged outside the blast furnace 2, and the gas preheating The small ball hot blast stove 11 communicates with the gas inlet coil 9 through the gas pipe 12, and the gas explosion-proof safety device 10 is installed on the gas pipe 12.
实施例二Embodiment two
纯氧煤气高炉炼铁工艺：Pure oxygen gas blast furnace ironmaking process:
将球团矿、碱性烧结矿、焦炭、熔剂从炉顶送入高炉中，其中每吨铁配焦炭190kg；然后向高炉中鼓入纯氧，并同时将由球式热风炉加压预热的煤气喷射至高炉内直接对球团矿和含铁原料进行还原，每吨铁水鼓氧量为160Nm3，煤气经球式热风炉加压预热到1000℃-1100℃，煤气压力为0.3MPa。反应过程所产生的煤气经重力除尘器、陶瓷管式除尘器和布袋除尘器及二氧化碳变压吸附装置进行净化降温，经净化和降温的炉顶气通过管道通至余压发电装置进行再利用后回收至煤气罐，当然，也可以循环使用。Send the pellets, alkaline sinter, coke, and flux from the top of the furnace into the blast furnace, in which 190kg of coke is added to each ton of iron; The gas is injected into the blast furnace to directly reduce the pellets and iron-containing raw materials. The oxygen volume per ton of molten iron is 160Nm 3 . The gas is preheated to 1000°C-1100°C by a spherical hot blast stove, and the gas pressure is 0.3MPa. The coal gas produced in the reaction process is purified and cooled by gravity dust collector, ceramic tube dust collector, bag filter and carbon dioxide pressure swing adsorption device. The purified and cooled furnace top gas is passed through the pipeline to the residual pressure power generation device for reuse. Recycled to the gas tank, of course, can also be recycled.
实施例三Embodiment Three
纯氧煤气高炉炼铁工艺：Pure oxygen gas blast furnace ironmaking process:
将球团矿、碱性烧结矿、焦炭、熔剂从炉顶送入高炉中，其中每吨铁配焦炭200kg；然后向高炉中鼓入纯氧，并同时将由球式热风炉加压预热的煤气喷射至高炉内直接对球团矿和含铁原料进行还原，每吨铁水鼓氧量为190Nm3，煤气经球式热风炉加压预热到1000℃-1100℃，煤气压力为0.5MPa。反应过程所产生的煤气经重力除尘器、陶瓷管式除尘器和布袋除尘器及二氧化碳变压吸附装置进行净化降温，经净化和降温的炉顶气通过管道通至余压发电装置进行再利用后回收至煤气罐，当然，也可以循环使用。Send the pellets, basic sinter, coke and flux from the top of the furnace into the blast furnace, in which 200kg of coke is added to each ton of iron; The gas is injected into the blast furnace to directly reduce the pellets and iron-containing raw materials. The oxygen volume per ton of molten iron is 190Nm 3 . The gas is preheated to 1000°C-1100°C by the ball hot blast stove, and the gas pressure is 0.5MPa. The coal gas produced in the reaction process is purified and cooled by gravity dust collector, ceramic tube dust collector, bag filter and carbon dioxide pressure swing adsorption device. The purified and cooled furnace top gas is passed through the pipeline to the residual pressure power generation device for reuse. Recycled to the gas tank, of course, can also be recycled.
Claims (4)
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006100477209A CN1916187A (en) | 2006-09-12 | 2006-09-12 | Tecnique and euippment for making iron by using blast furnace through pure oxygen and coal gas |
| PCT/CN2006/003280 WO2008037132A1 (en) | 2006-09-12 | 2006-12-05 | A process for iron smelting in blast furnace using purified oxygen and coal gas and its device |
| US12/226,940 US20090095134A1 (en) | 2006-09-12 | 2006-12-05 | Process and Equipment for Blast Furnace Ironmaking Using Pure Oxygen and Gas |
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| Application Number | Priority Date | Filing Date | Title |
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| CNA2006100477209A CN1916187A (en) | 2006-09-12 | 2006-09-12 | Tecnique and euippment for making iron by using blast furnace through pure oxygen and coal gas |
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| Publication Number | Publication Date |
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| CN1916187A true CN1916187A (en) | 2007-02-21 |
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| CNA2006100477209A Pending CN1916187A (en) | 2006-09-12 | 2006-09-12 | Tecnique and euippment for making iron by using blast furnace through pure oxygen and coal gas |
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| Country | Link |
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| US (1) | US20090095134A1 (en) |
| CN (1) | CN1916187A (en) |
| WO (1) | WO2008037132A1 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009129677A1 (en) * | 2008-04-23 | 2009-10-29 | Zhou Jiule | A method of iron smelting in blast furnace with high temperature coal gas |
| CN101519703B (en) * | 2008-02-26 | 2010-12-08 | 宝山钢铁股份有限公司 | A Low Coke Ratio Blast Furnace Ironmaking Process |
| CN102348813A (en) * | 2009-03-24 | 2012-02-08 | 保尔伍斯股份有限公司 | Tuyere stock arrangement for a blast furnace and method for feeding hot blast into a blast furnace |
| CN102388152A (en) * | 2009-04-28 | 2012-03-21 | 保尔伍斯股份有限公司 | Method for feeding a burden to a blast furnace |
| CN102414328A (en) * | 2009-04-30 | 2012-04-11 | 杰富意钢铁株式会社 | Blast furnace operation method |
| WO2023029816A1 (en) * | 2021-09-03 | 2023-03-09 | 中冶赛迪工程技术股份有限公司 | Low carbon blast furnace ironmaking method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101792831B (en) * | 2010-03-26 | 2011-08-31 | 西安陕鼓动力股份有限公司 | Automatic sweeping method for nitrogen replaced with gas in blast furnace gas energy recovery system pipe network |
| CN101792834B (en) * | 2010-03-26 | 2011-06-22 | 西安陕鼓动力股份有限公司 | Automatic sweeping method for gas replaced with nitrogen in blast furnace gas energy recovery system pipe network |
| CN101792833B (en) * | 2010-03-26 | 2011-06-22 | 西安陕鼓动力股份有限公司 | Automatic sweeping method for nitrogen replaced with air in blast furnace gas energy recovery system pipe network |
| CN103695665B (en) * | 2013-12-18 | 2015-04-01 | 中冶南方工程技术有限公司 | Process for recycling zinc and producing molten iron by using iron-containing zinc dust |
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| BE799791A (en) * | 1973-05-18 | 1973-09-17 | Centre Rech Metallurgique | PROCESS FOR REDUCING ORE. |
| DE2916908C2 (en) * | 1979-04-26 | 1987-01-02 | Krupp Koppers GmbH, 4300 Essen | Process for producing pig iron in a blast furnace while reducing the specific coke consumption by using gaseous replacement fuels |
| US4421553A (en) * | 1980-05-06 | 1983-12-20 | Centre De Recherches Metallurgiques | Process for operating a blast furnace |
| SU1465462A1 (en) * | 1987-07-27 | 1989-03-15 | Институт черной металлургии | Method of conducting melting in blast furnace |
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- 2006-09-12 CN CNA2006100477209A patent/CN1916187A/en active Pending
- 2006-12-05 WO PCT/CN2006/003280 patent/WO2008037132A1/en active Application Filing
- 2006-12-05 US US12/226,940 patent/US20090095134A1/en not_active Abandoned
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101519703B (en) * | 2008-02-26 | 2010-12-08 | 宝山钢铁股份有限公司 | A Low Coke Ratio Blast Furnace Ironmaking Process |
| WO2009129677A1 (en) * | 2008-04-23 | 2009-10-29 | Zhou Jiule | A method of iron smelting in blast furnace with high temperature coal gas |
| CN102348813A (en) * | 2009-03-24 | 2012-02-08 | 保尔伍斯股份有限公司 | Tuyere stock arrangement for a blast furnace and method for feeding hot blast into a blast furnace |
| US8945463B2 (en) | 2009-03-24 | 2015-02-03 | Paul Wurth S.A. | Tuyere stock arrangement for a blast furnace and method for feeding hot blast into a blast furnace |
| CN102388152A (en) * | 2009-04-28 | 2012-03-21 | 保尔伍斯股份有限公司 | Method for feeding a burden to a blast furnace |
| CN102388152B (en) * | 2009-04-28 | 2015-04-01 | 保尔伍斯股份有限公司 | Method for feeding a burden to a blast furnace |
| CN102414328A (en) * | 2009-04-30 | 2012-04-11 | 杰富意钢铁株式会社 | Blast furnace operation method |
| CN102414328B (en) * | 2009-04-30 | 2014-03-05 | 杰富意钢铁株式会社 | Blast furnace operation method |
| WO2023029816A1 (en) * | 2021-09-03 | 2023-03-09 | 中冶赛迪工程技术股份有限公司 | Low carbon blast furnace ironmaking method |
Also Published As
| Publication number | Publication date |
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| WO2008037132A1 (en) | 2008-04-03 |
| US20090095134A1 (en) | 2009-04-16 |
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