CN1212408C - Carburant for steel-making and producing process and method of using thereof - Google Patents
Carburant for steel-making and producing process and method of using thereof Download PDFInfo
- Publication number
- CN1212408C CN1212408C CN 03124798 CN03124798A CN1212408C CN 1212408 C CN1212408 C CN 1212408C CN 03124798 CN03124798 CN 03124798 CN 03124798 A CN03124798 A CN 03124798A CN 1212408 C CN1212408 C CN 1212408C
- Authority
- CN
- China
- Prior art keywords
- steel
- carbon
- carburant
- reductor
- weight
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000000034 method Methods 0.000 title claims abstract description 32
- 238000009628 steelmaking Methods 0.000 title abstract description 5
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 36
- 239000010959 steel Substances 0.000 claims abstract description 36
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 31
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 27
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 20
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims abstract description 18
- 238000004519 manufacturing process Methods 0.000 claims abstract description 15
- 239000000843 powder Substances 0.000 claims abstract description 13
- 238000007670 refining Methods 0.000 claims abstract description 13
- 239000007787 solid Substances 0.000 claims abstract description 13
- 239000002245 particle Substances 0.000 claims abstract description 12
- 238000010079 rubber tapping Methods 0.000 claims abstract description 11
- 229910052786 argon Inorganic materials 0.000 claims abstract description 9
- 239000000463 material Substances 0.000 claims abstract description 9
- 239000003575 carbonaceous material Substances 0.000 claims description 18
- 239000011230 binding agent Substances 0.000 claims description 16
- 230000003750 conditioning effect Effects 0.000 claims description 16
- 238000003723 Smelting Methods 0.000 claims description 13
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 9
- 239000002893 slag Substances 0.000 claims description 8
- 238000001816 cooling Methods 0.000 claims description 6
- 239000007858 starting material Substances 0.000 claims description 6
- 239000000571 coke Substances 0.000 claims description 5
- 239000007788 liquid Substances 0.000 claims description 5
- 238000012545 processing Methods 0.000 claims description 5
- 229910002804 graphite Inorganic materials 0.000 claims description 4
- 239000010439 graphite Substances 0.000 claims description 4
- 229910052742 iron Inorganic materials 0.000 claims description 4
- 239000011295 pitch Substances 0.000 claims description 4
- 235000011194 food seasoning agent Nutrition 0.000 claims description 3
- 238000012216 screening Methods 0.000 claims description 3
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims description 2
- 229910000519 Ferrosilicon Inorganic materials 0.000 claims description 2
- 229920001131 Pulp (paper) Polymers 0.000 claims description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical group [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 2
- 239000004411 aluminium Substances 0.000 claims description 2
- 229910052782 aluminium Inorganic materials 0.000 claims description 2
- 229910052791 calcium Inorganic materials 0.000 claims description 2
- 239000011575 calcium Substances 0.000 claims description 2
- 239000003245 coal Substances 0.000 claims description 2
- 238000012856 packing Methods 0.000 claims description 2
- 235000019353 potassium silicate Nutrition 0.000 claims description 2
- 239000011347 resin Substances 0.000 claims description 2
- 229920005989 resin Polymers 0.000 claims description 2
- 229910052710 silicon Inorganic materials 0.000 claims description 2
- 239000010703 silicon Substances 0.000 claims description 2
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 claims description 2
- 229910010271 silicon carbide Inorganic materials 0.000 claims description 2
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical group [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 2
- 238000011084 recovery Methods 0.000 abstract description 9
- 238000003912 environmental pollution Methods 0.000 abstract description 3
- 239000007767 bonding agent Substances 0.000 abstract 2
- 238000011010 flushing procedure Methods 0.000 abstract 2
- 230000001105 regulatory effect Effects 0.000 abstract 2
- QMQXDJATSGGYDR-UHFFFAOYSA-N methylidyneiron Chemical compound [C].[Fe] QMQXDJATSGGYDR-UHFFFAOYSA-N 0.000 description 6
- 229910000640 Fe alloy Inorganic materials 0.000 description 5
- 239000000428 dust Substances 0.000 description 4
- 150000001875 compounds Chemical class 0.000 description 3
- 238000013467 fragmentation Methods 0.000 description 3
- 238000006062 fragmentation reaction Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 238000005204 segregation Methods 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- 229910000975 Carbon steel Inorganic materials 0.000 description 2
- 239000010962 carbon steel Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000155 melt Substances 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 238000005275 alloying Methods 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009851 ferrous metallurgy Methods 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 235000012054 meals Nutrition 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- LENZDBCJOHFCAS-UHFFFAOYSA-N tris Chemical compound OCC(N)(CO)CO LENZDBCJOHFCAS-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Treatment Of Steel In Its Molten State (AREA)
Abstract
The present invention discloses a carburant for steel making, a production process thereof, and a using method thereof. The carburant is composed of carbon-containing materials, deoxidizing agents, specific weight regulating agents and bonding agents in the certain weight percentage; the carbon-containing materials, the deoxidizing agents and the specific weight regulating agents are respectively crushed through a crushing machine and are respectively ground into powder materials through a grinding machine to be uniformly mixed in a stirrer, the bonding agents are added in the powder materials to be uniformly mixed, the powder materials are then made into solid particles in a certain shape by a forming machine, and the solid particles are dried and baked at a certain temperature in the prescribed time and then are cooled and packed. Molten steel is added in the process of tapping and refining the molten steel, and then enters an argon flushing station, and the argon flushing treatment is carried out. The carburant for steel making is used for electric furnaces of 30 tons or rotary furnaces of 100 tons, the recovery rate of carbon is stabilized by more than 90% to 95%, steel has no carbon aliquation phenomena, and the carburant for steel making has the advantages of operating condition improvement, production cost reduction, popularization value and no environmental pollution of operation.
Description
Technical field
The present invention relates to a kind of steel-smelting carburant and production technique and using method that is applied to ferrous metallurgy or machinery or casting industry, belong to the C21C5/00 class.
Background technology
At present the method for in the STEELMAKING PRODUCTION process molten steel being carried out carburetting is mainly to utilize carbonaceous material (as graphite, class graphite, electrode powder, refinery coke or Jiao Li etc.) and contain carbon-iron alloy and joins in the molten steel at tapping process and refining process and handle molten steel is carried out carburetting.Though this kind carbonaceous material is used extensively and technical maturity, they are generally meal (small quantities of particles is arranged), and proportion is little, therefore very easily produce airborne dust in use, float again at the top of the slag, cause environmental pollution, the rate of recovery of carbon is controlled by slag of different nature, carburetting rate instability, powder is exposed in the air easily, causes the scaling loss height of carbon, thereby the rate of recovery of carbon lower (generally about 85%), cause carbon Local enrichment in molten steel easily, and cause carbon on the low side.To with containing carbon-iron alloy, the carburetting rate of recovery stable and carbon is higher, but following defective is also arranged: 1. price height causes the smelting cost height; 2. carbon increasing amount is contained the restriction of other alloying element in the carbon-iron alloy, and operation easier is also bigger, is not a kind of ideal carburetting material.
Summary of the invention
The object of the present invention is to provide the compound iron carbon carburelant of the solid granular that a kind of proportion is big, the carbon rate of recovery is stable, the present invention proposes the production technique and the using method of this compound iron carbon carburelant simultaneously.
For achieving the above object, the technical solution used in the present invention: technical scheme is divided into composition or proportioning and the production technique and the using method of compound iron carbon carburelant.
Steel-smelting carburant is by carbonaceous material, reductor, proportion conditioning agent and binding agent are formed, earlier carbonaceous material, the proportion conditioning agent, reductor becomes the particle of 0～45mm respectively with crusher in crushing, screening respectively then, the small-particle of 0～6mm is stayed, macrobead is ground to form 0～250 purpose powder with ball mill or Raymond mill etc., the small-particle of 0～6mm and 0～250 purpose powder be mixed be starting material, by weight percentage various starting material being put into stirrer mixed 2～55 minutes, add the binding agent remix 2～65 minutes account for weight 2-15%, with shaper the mixing material is made solid particulate, with solid particulate seasoning at room temperature or at the oven dry in 2～60 hours of 25～750 ℃ of roasting temperatures, naturally cooling test package warehouse-in.
Adopt the steel-smelting carburant that as above technical scheme provides and the production technique and the using method of this carburelant, compared with prior art its advantage is:
1. because the proportion of carburelant is a bit larger tham the proportion of slag, and be solid granular, when carrying out adding molten steel in the refining process in tapping or to molten steel, carburelant will sink to below the interface of molten steel and slag, under the high-temperature molten steel condition, carburelant constantly melts, and carbon is fused in the molten steel admittedly, and molten steel is played recarburization; 2. because of carburelant is a particulate state, in use can not produce airborne dust, free from environmental pollution; 3. because of carburelant melts at molten steel and below the slag interface, can not cause carbon to expose in air, reduce the influence of slag character to the carbon rate of recovery, the carbon rate of recovery can reach more than 90%; 4. carburelant is granular composite C-Fe, and carbon diffuses in the molten steel, is necessarily blowing under the hydrogen effect of (Ar) time, and carbon can more evenly enter in the molten steel, can not cause carbon segregation, and cost is lower; 5. certain desoxydatoin is arranged, can save the consumption of reductor.
Embodiment
Below in conjunction with embodiment the specific embodiment of the present invention is described in further detail.
A kind of steel-smelting carburant of the present invention is made up of carbonaceous material, reductor, proportion conditioning agent and binding agent, reductor accounts for 1～15% of weight, the proportion conditioning agent accounts for 2～25% of weight, and carbonaceous material accounts for 60～94% of weight, and binding agent accounts for 2～15% of weight.Wherein
Carbonaceous material is coke, coal, graphite, pitch, refinery coke or electrode powder, and its carbon content is 70～100%, it as surplus;
Reductor is selected from aluminium, silicon, calcium, silicon carbide, ferrosilicon or silicocalcium;
The proportion conditioning agent is selected from abrasive grit, iron scale or iron filings, and its iron-holder is 70～90%;
Binding agent is selected from water glass, resin, pitch, paper pulp, tar, sugared slag or water.
With carbonaceous material, the proportion conditioning agent, reductor becomes the particle of 0～45mm respectively with crusher in crushing, screening respectively, the small-particle of 0～6mm is stayed, macrobead is ground to form 0～250 purpose powder with ball mill or Raymond mill etc., small-particle and 0～250 purpose powder of 0～6mm are mixed as starting material, by weight percentage starting material being put into stirrer mixed 2～55 minutes, add the binding agent remix 2～65 minutes account for weight 2-15%, with shaper the mixing material is made solid particulate, dried in 2～60 hours with solid particulate seasoning at room temperature or at 25～750 ℃ of roasting temperatures, naturally cooling packing warehouse-in is stand-by.
The using method of the steel-smelting carburant that provides with as above composition or proportioning and production technique is: in tapping or liquid steel refining process carburelant is joined in the molten steel, gone out to enter after steel or refining process finish the Argon station and again molten steel has been carried out the Argon processing and cast in 0～8 minute.
The steel-smelting carburant that as above composition or proportioning and production technique are made is applied to respectively in 30 tons of electric furnaces and the 100 tons of converters.Show at 30 tons of electric furnace application results: 1. the rate of recovery of carbon is stabilized in more than 90～95%; 2. adition process does not have airborne dust; 3. there is not carbon segregation in the steel; Compare 2.0～5.0 yuan of/ton steel that reduce production costs with using the carbonaceous carburelant when 4. smelting carbon content and be 0.45% carbon steel, compare 3.0～7.0 yuan of/ton steel that reduce production costs with using iron alloy.Application result shows in 100 tons of converters: 1. the carbon rate of recovery is stabilized in more than 90～95%; 2. adition process does not have airborne dust; 3. there is not carbon segregation in the steel; Compare 2.5～5.5 yuan of/ton steel that to reduce production costs with using carbonaceous carburetting when 4. smelting carbon content and be 0.45% carbon steel, compare 3.5～8.0 yuan of/ton steel that to reduce production costs with using high-carbbon iron alloy; 5. easy to operate, need not change existing charging technology.
All the other embodiment:
Embodiment 1
With reductor 5%, proportion conditioning agent 10%, carbonaceous material 75%, binding agent 2.5%, with reductor, proportion conditioning agent, carbonaceous material fragmentation, grind, stir, add binding agent, be mixed and made into solid particulate, 25～750 ℃ of roasting temperatures 2～60 hours, naturally cooling was stand-by.In tapping or liquid steel refining process carburelant is joined in the molten steel, tapping or refining finish back Argon (Ar) processing and cast in 0～8 minute.
Embodiment 2
With reductor 10%, proportion conditioning agent 15%, carbonaceous material 65%, binding agent 3.0%, with reductor, proportion conditioning agent, carbonaceous material fragmentation, grind, stir, add binding agent, be mixed and made into solid particulate, 25～750 ℃ of roasting temperatures 2～60 hours, naturally cooling was stand-by.In tapping or liquid steel refining process carburelant is joined in the molten steel, tapping or refining finish back Argon (Ar) processing and cast in 0～8 minute.
Embodiment 3
With reductor 13%, proportion conditioning agent 20%, carbonaceous material 85%, binding agent 4.5%, with reductor, proportion conditioning agent, carbonaceous material fragmentation, grind, stir, add binding agent, be mixed and made into solid particulate, 25～750 ℃ of roasting temperatures 2～60 hours, naturally cooling was stand-by.In tapping or liquid steel refining process carburelant is joined in the molten steel, tapping or refining finish back Argon (Ar) processing and cast in 0～8 minute.
Claims (3)
1, a kind of steel-smelting carburant, it is characterized in that: be made up of carbonaceous material, reductor, proportion conditioning agent, binding agent, reductor accounts for 1～15% of weight, and the proportion conditioning agent accounts for 2～25% of weight, binding agent accounts for 2～15% of weight, and surplus is a carbonaceous material;
Carbonaceous material: coke, coal, graphite, pitch, refinery coke or electrode powder, its carbon content is 70～100%;
Reductor is selected from aluminium, silicon, calcium, silicon carbide, ferrosilicon or silicocalcium;
The proportion conditioning agent is selected from abrasive grit, iron scale or iron filings, and its iron-holder is 70～90%;
Binding agent is selected from water glass, resin, pitch, paper pulp, tar, sugared slag or water.
2, a kind of production technique according to the described steel-smelting carburant of claim 1, it is characterized in that: with carbonaceous material, the proportion conditioning agent, reductor becomes the particle of 0～45mm respectively with crusher in crushing, screening respectively, the small-particle of 0～6mm is stayed, macrobead is ground to form 0～250 purpose powder with ball mill or Raymond mill, small-particle and 0～250 purpose powder of 0～6mm are mixed as starting material, by weight percentage starting material being put into stirrer mixed 2～55 minutes, add the binding agent remix 2～65 minutes account for weight 2-15%, with shaper the mixing material is made solid particulate, with solid particulate seasoning at room temperature or in the oven dry in 2～60 hours of 25～750 ℃ of roasting temperatures, naturally cooling packing.
3, a kind of using method according to the described steel-smelting carburant of claim 1, it is characterized in that: in tapping or liquid steel refining process, carburelant is joined in the molten steel, gone out to enter after steel or refining process finish the Argon station and again molten steel has been carried out the Argon processing and cast in 0～8 minute.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03124798 CN1212408C (en) | 2003-09-04 | 2003-09-04 | Carburant for steel-making and producing process and method of using thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03124798 CN1212408C (en) | 2003-09-04 | 2003-09-04 | Carburant for steel-making and producing process and method of using thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1523122A CN1523122A (en) | 2004-08-25 |
| CN1212408C true CN1212408C (en) | 2005-07-27 |
Family
ID=34285811
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03124798 Expired - Fee Related CN1212408C (en) | 2003-09-04 | 2003-09-04 | Carburant for steel-making and producing process and method of using thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1212408C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20210214813A1 (en) * | 2018-12-03 | 2021-07-15 | Nanyang Hanye Special Steel Co., Ltd | Slag Discharging Method in Process of Producing Ultra-Low Phosphorus Steel and Method for Producing Ultra-Low Phosphorus Steel |
Families Citing this family (33)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100392114C (en) * | 2006-03-13 | 2008-06-04 | 上海盛宝钢铁冶金炉料有限公司 | Steel-smelting and carburating method |
| CN100402671C (en) * | 2006-03-13 | 2008-07-16 | 上海盛宝钢铁冶金炉料有限公司 | Steel smelting and carburating method |
| CN1818088B (en) * | 2006-03-13 | 2011-08-10 | 上海盛宝钢铁冶金炉料有限公司 | Steel smelting and carburating method |
| CN100535133C (en) * | 2006-12-30 | 2009-09-02 | 李继宗 | Steel making lime additive and its production process |
| CN101696463A (en) * | 2009-10-23 | 2010-04-21 | 西峡县合力冶金辅料有限公司 | Steel-making heat-generating agent of semisteel subjected to vanadium extraction |
| CN101798617A (en) * | 2010-03-24 | 2010-08-11 | 王永梅 | Stainless steel dephosphorization carburant |
| CN102251073B (en) * | 2011-07-08 | 2013-07-24 | 攀钢集团有限公司 | Deoxidizing and carburizing agent for semisteel, and preparation and application methods thereof |
| CN102925616B (en) * | 2011-08-08 | 2014-10-01 | 攀钢集团有限公司 | Smelting method of vanadium-containing molten iron |
| CN103160644A (en) * | 2013-03-13 | 2013-06-19 | 北京中渣冶金技术有限公司 | Production device, preparation method and use method of low-nitrogen carburant for clean steel refining |
| CN104787741B (en) * | 2014-01-16 | 2019-02-15 | 河南普绿环保科技有限公司 | The method of the carbon containing powder resource utilization of industry |
| CN104087713B (en) * | 2014-06-26 | 2016-02-10 | 浙江锦诚耐火材料有限公司 | A kind of complete processing of low nitrogen low hydrogen carburelant |
| WO2016016716A1 (en) * | 2014-07-31 | 2016-02-04 | Sabic Global Technologies B.V. | Methods for utilizing olefin coke in a steel making process and products made therefrom |
| CN104962690A (en) * | 2015-06-01 | 2015-10-07 | 铜陵市明诚铸造有限责任公司 | Nanometer cerium oxide-doped porous efficient recarburizing agent recycling waste graphite electrode, and preparation method thereof |
| CN105039645A (en) * | 2015-06-01 | 2015-11-11 | 铜陵市明诚铸造有限责任公司 | Porous efficient carburant blended with nano-copper for reusing waste graphite electrode and preparation method of porous efficient carburant |
| CN104962687A (en) * | 2015-06-01 | 2015-10-07 | 铜陵市明诚铸造有限责任公司 | Nanometer silicon carbide-doped porous efficient recarburizing agent recycling waste graphite electrode, and preparation method thereof |
| CN104962691A (en) * | 2015-06-01 | 2015-10-07 | 铜陵市明诚铸造有限责任公司 | Short carbon fiber-doped porous reinforced recarburizing agent recycling waste graphite electrode, and preparation method thereof |
| CN104962693A (en) * | 2015-06-01 | 2015-10-07 | 铜陵市明诚铸造有限责任公司 | Nanometer carbon sol-doped porous efficient recarburizing agent recycling waste graphite electrode, and preparation method thereof |
| CN104962694A (en) * | 2015-06-01 | 2015-10-07 | 铜陵市明诚铸造有限责任公司 | Sponge titanium-doped porous efficient recarburizing agent recycling waste graphite electrode, and preparation method thereof |
| CN104962688A (en) * | 2015-06-01 | 2015-10-07 | 铜陵市明诚铸造有限责任公司 | Silicon nitride-doped porous efficient recarburizing agent recycling waste graphite electrode, and preparation method thereof |
| CN104962686A (en) * | 2015-06-01 | 2015-10-07 | 铜陵市明诚铸造有限责任公司 | Porous efficient recarburizing agent recycling waste graphite electrode, and preparation method thereof |
| CN104962689A (en) * | 2015-06-01 | 2015-10-07 | 铜陵市明诚铸造有限责任公司 | Hollow glass microbead-doped porous efficient recarburizing agent recycling waste graphite electrode, and preparation method thereof |
| CN104962692A (en) * | 2015-06-01 | 2015-10-07 | 铜陵市明诚铸造有限责任公司 | Tin antimony oxide-doped porous efficient recarburizing agent recycling waste graphite electrode, and preparation method thereof |
| CN105543444A (en) * | 2015-12-17 | 2016-05-04 | 宁夏共享能源有限公司 | Carburant and preparation method thereof |
| JP6710564B2 (en) * | 2016-04-05 | 2020-06-17 | Ｊｆｅ条鋼株式会社 | Electric furnace refining method |
| CN106435086B (en) * | 2016-11-17 | 2018-04-24 | 孙榕远 | A kind of semi-steel making carburetting slagging agent and its application method |
| CN106868247B (en) * | 2017-03-21 | 2019-01-08 | 山东南山铝业股份有限公司 | A kind of phosphorous pig iron carbon increasing method |
| CN107739774B (en) * | 2017-06-17 | 2019-08-09 | 江苏省镔鑫钢铁集团有限公司 | A kind of preparation method for making steel dedicated carburant |
| CN109694935A (en) * | 2017-10-20 | 2019-04-30 | 鞍钢股份有限公司 | Aluminum-based deoxidizing and carburizing alloy for converter and manufacturing method thereof |
| CN108863369A (en) * | 2018-07-19 | 2018-11-23 | 江苏中商碳素研究院有限公司 | A kind of environment-friendly type graphitization product and its production method |
| CN109628692A (en) * | 2019-01-28 | 2019-04-16 | 江苏嘉耐高温材料有限公司 | Dedicated carburant of Refining Clean Steel in ASEA-SKF and preparation method thereof |
| CN109868340A (en) * | 2019-02-20 | 2019-06-11 | 常州市宝平不锈钢制品有限公司 | A kind of steel-making efficient carburant and preparation method thereof |
| CN111676345B (en) * | 2020-05-20 | 2023-03-31 | 淮北天澈碳基新材料科技有限公司 | Method for preparing carburant from anthracite |
| CN115807145B (en) * | 2022-11-28 | 2024-03-08 | 天津钢铁集团有限公司 | Control method for adjusting temperature by utilizing tailings |
-
2003
- 2003-09-04 CN CN 03124798 patent/CN1212408C/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20210214813A1 (en) * | 2018-12-03 | 2021-07-15 | Nanyang Hanye Special Steel Co., Ltd | Slag Discharging Method in Process of Producing Ultra-Low Phosphorus Steel and Method for Producing Ultra-Low Phosphorus Steel |
| US11718885B2 (en) * | 2018-12-03 | 2023-08-08 | Nanyang Hanye Special Steel Co., Ltd | Slag discharging method in process of producing ultra-low phosphorus steel and method for producing ultra-low phosphorus steel |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1523122A (en) | 2004-08-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1212408C (en) | Carburant for steel-making and producing process and method of using thereof | |
| US4032352A (en) | Binder composition | |
| KR100958987B1 (en) | Lime-based additive for steel smelting and the preparation method thereof | |
| CN1212407C (en) | Carbon-iron heat generating agent for steel-making and producing process and method of using thereof | |
| KR100470089B1 (en) | Method for producing metallic iron | |
| Tangstad | Ferrosilicon and silicon technology | |
| CN104878289B (en) | High cerium mischmetal Antaciron and its production method | |
| CN1837389A (en) | Method for preparing low-carbon low-phosphor silicon manganese alloy by utilizing medium manganese slag and siliceous reducer | |
| CN115679097B (en) | Method for recycling ironmaking gas ash by using converter slag and refining dust | |
| US2986460A (en) | Production of iron | |
| CN113481346B (en) | Low-cost composite efficient heating agent for converter and preparation method thereof | |
| CN1415766A (en) | Composite ball rolls of manganese and its preparation method | |
| CN100451131C (en) | Production and utilization process for making steel using smelting slag | |
| CN1159124C (en) | Granular heat-insulating agent and its production process | |
| CN106480308A (en) | Method for reducing burnup of sintered solid | |
| KR100376506B1 (en) | Method for agglomerating iron ore fines for coal based iron making using waste sludge | |
| CN1210415C (en) | Desulfurizer based on nano composite calcium carbide and calcium oxide for steel | |
| CN106467935A (en) | A kind of copper ashes and the Application way of carbide slag | |
| CN109014234A (en) | The preparation method of micro-size fraction iron powder | |
| CN105925744B (en) | The method of Dust of Iron And Steel Works production pearl iron is utilized under a kind of low temperature | |
| KR100226897B1 (en) | Agglomerate method of pre-reduction fine ore for molten pig iron | |
| CN100507021C (en) | LF composite deoxidization reducer | |
| CN103031409A (en) | Novel process of steelmaking deoxidization by utilizing precipitator dust of refining furnace | |
| CN1441066A (en) | Slagging aluminium ball and its making process | |
| CN1598007A (en) | Pyrogenic enrichment method of valuable metals in ocean cobalt-rich crusts |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: CHANGSHA DONGXIN ENVIRONMENT PROTECTION MATERIAL L Free format text: FORMER NAME: WU GUANGLIANG |
|
| CP03 | Change of name, title or address |
Address after: No. 068 Park City in Hunan province Changsha ngui Jinzhou District Australia Road Patentee after: Changsha Dongxin Environmental Protection Material Co., Ltd. Address before: Hunan city of Loudi Province in 514 adjacent thrust 1 floor No. 7 Patentee before: Wu Guangliang |
|
| C57 | Notification of unclear or unknown address | ||
| DD01 | Delivery of document by public notice |
Addressee: Gan Yonggang Document name: Notification of Passing Examination on Formalities |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20050727 Termination date: 20160904 |