CN104789759A - Metallurgical iron-containing powder material resource utilization method - Google Patents
Metallurgical iron-containing powder material resource utilization method Download PDFInfo
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- CN104789759A CN104789759A CN201410019180.8A CN201410019180A CN104789759A CN 104789759 A CN104789759 A CN 104789759A CN 201410019180 A CN201410019180 A CN 201410019180A CN 104789759 A CN104789759 A CN 104789759A
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- 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
- C22B1/24—Binding; Briquetting ; Granulating
- C22B1/248—Binding; Briquetting ; Granulating of metal scrap or alloys
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- 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
- C22B1/24—Binding; Briquetting ; Granulating
- C22B1/242—Binding; Briquetting ; Granulating with binders
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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
- Y02P10/20—Recycling
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- Organic Chemistry (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The present invention discloses a metallurgical iron-containing powder material resource utilization method, wherein iron-containing powder collected by the screening and the dust remover during the metallurgical industry production (including sintering, blast furnace, converter, electric furnace, steel rolling and other steps) process and a GY adhesive are adopted as raw materials, and testing, material preparing, transporting, kneading homogenization, molding and drying are performed to mold into the furnace material or auxiliary material meeting blast furnace, converter, or electric furnace application requirements in the metallurgical industry. With the method of the present invention, the iron-containing powder resource utilization rate is high, and the problems of difficult metallurgical industry iron-containing powder re-utilization, serious environmental pollution and the like are solved.
Description
Technical field
The present invention relates to a kind of method of metallurgical iron content powder recycling, be specifically related to metallurgical iron content powder and GY binding agent is raw material, through automatic forming technique, be processed into the method for furnace charge that metallurgy industry smelts or auxiliary material.
Technical background
According to statistics, Chinese 2012 crude steel output 7.16 hundred million tons, account for 46.3% of global output of steel, the iron content powder 8% ~ 12% of association, its iron-holder generally at TFe=30% ~ 70%, the iron dust containing, scale oxide etc. mainly producing in the operation such as sintering, pelletizing, blast furnace, converter dirt, electric furnace from metallurgy industry, collect in dust removal process.Because these iron content dirt material do not meet manufacturing technique requirent in granularity, can not directly utilize, due to chemical component difference, process difficulty is comparatively large relatively, makes the outdoor accumulation of most of dust or is abandoned, both wasting resource, again contaminate environment.Along with the raising of China's industrial expansion and environmental protection requirement; recycling treatment problem containing iron powder body has become the important topic that metallurgical industry realizes Sustainable development, and its recycling has been laid out each smelter and saved energy and reduce the cost and the work schedule of environment protection.At present, major part smelter adopts iron content powder to return the mode of sintering recycling, as: Chinese patent CN10181264B zinc-iron-containing dust, the treatment process of mud, CN102492833B ion dust mud contaning is applied to the method for sintering, the method that CN1168547C ion dust mud contaning and sinter return fine recycle, CN1212410C fully steelmaking of steel dust and mud realizes the method for zero release, CN102534199B mono-kind utilizes technique etc. containing zinc-iron comprehensive dust, utilize reduction, sintering processing process iron-containing resource, although obtain effective utilization, reduction is joined because its chemical component difference returns more greatly, sintering, cause again the secondary pollution to environment, in addition, the method that cooled agglomerated pellet matrix material as metallurgical in Chinese patent CN103451420A mono-kind and production technique thereof, CN102351479A mono-kind utilize ion dust mud contaning to prepare carbon brick, dedusting ash in CN102978387A iron and steel solid waste generates cooled agglomerated pellet technique, these method major parts adopt water glass, cement, starch, polyvinyl alcohol to make binding agent, because these inorganic materials reduction ore deposit grade is serious, organic materials high thermal resistance is poor, is difficult to reach blast furnace, converter, electric furnace application requiring.In view of the deficiency of above technology, the present invention proposes the method for a kind of metallurgy industry containing iron powder body recycling.
Summary of the invention
The present invention adopts metallurgical iron content powder and GY binding agent to be raw material, through batching, conveying, stir, shaping, drying process, form automatic forming technique, be processed into and meet metallurgical processing and become to meet blast furnace in metallurgical industry, converter, the furnace charge of electrosmelting or auxiliary material.To reach the object of metallurgy industry cleaner production, energy-saving and emission-reduction.
The mass ratio of the metallurgical iron content powder of the present invention and GY binding agent is: 96% ~ 98%, the GY binding agent that metallurgical iron content powder accounts for the mass ratio of total raw material accounts for 2% ~ 4% of the mass ratio of total raw material; Wherein, metallurgical iron content powder by the sintering dust separation ash in metallurgy industry production process, return mine, blast furnace dedusting ash, converter electric stove dust ash, steel rolling converter dust-removing ash, steel-making slag powder, iron scale etc. one or more formed with arbitrary proportion.GY binding agent is provided by Kaifeng Filter Tuber For Clean Coal chemical institute.
The present invention's metallurgical iron content powder shaping automation production technique is: metallurgical iron content powder and GY binding agent add in several feed bins of feed proportioning system by (1) respectively; (2) transfer roller, dryer, forming machine, stirrer, proportioning machine is started successively; (3) automatically the carbon containing powder of 95% ~ 98% and the GY binding agent of 2% ~ 4% are inputted in closed transfer roller respectively by proportioning machine; (4) by transfer roller compound inputted twin-shaft mixer and edge runner carries out homogenizing stirring, the compound be stirred is sent into by rotary conveyor the pelletizing particle that the shaping particle diameter of forming machine is 50x30mm or 30x20mm by (5); (6) pelletizing particle is sent into vertical drier by rotary conveyor, dry 120 minutes under about 150 DEG C conditions.
Metallurgical iron content powder shaped granule is sent in the batch bin of metallurgy industry by the present invention, by production requirement with enter stove charge composition, namely can be used as blast furnace, converter, the furnace charge of electrosmelting or auxiliary material.Pelletizing grain forming rate is up to 98%, and product ultimate compression strength is 1200N/ ball, good in resistance to elevated temperatures after entering stove, to improve furnace charge ventilation property, and the working of a furnace is stablized.It is high that the present invention has level of automation, administers the features such as dust pollution, cleaner production, minimizing, resource utilization in industrial production.
Embodiment
Embodiment 1, metallurgical steel-making slag former, refrigerant: (1) takes electric stove dust ash 800kg, iron scale 200kg, molding adhesive 30kg, adds respectively in batch bin, adjustment feeding machine operational throughput; (3) from drying to start up system machine successively of preparing burden; (4) production line auto-programming completes conveying, batching, stirring, molding, granulating, baking operation, and acquisition meets steel-making requirements, intensity is high, and particle diameter is steel-making particle pellet auxiliary material or slag former, the refrigerant of 50x30mm.
Embodiment 2, iron alloy electric furnace furnace charge: (1) takes manganese dirt 700kg, manganese mineral powder 300kg, GY binding agent 20kg, adds respectively in batch bin, adjustment feeding machine operational throughput; (2) from drying to start up system machine successively of preparing burden; (3) production line auto-programming completes conveying, batching, stirring, shaping, baking operation, obtains and meets that electric furnace enters stove requirement, that particle diameter is 30x20mm, ultimate compression strength is greater than 900N/ ball particle furnace charge.
Embodiment 3, blast furnace furnace charge: (1) takes iron scale 300kg, powdered iron ore 300kg, chrome ore dust 400kg, GY binding agent 20kg, adds respectively in batch bin, adjustment feeding machine operational throughput; (2) from drying to start up system machine successively of preparing burden; (4) production line auto-programming completes conveying, batching, stirring, shaping, baking operation, obtains and meets the uniform particles of blast furnace feeding requirement, the furnace charge of smelting that intensity is high.
Shown by mining and metallurgy company of Zimbabwe (Zimasco), the practical application of northern Jilin square iron alloy associated company: metallurgical iron content powder ratio of briquetting more than 96%, do not fall apart in wet bulb intensity 2 meters of high whereabouts, product intensity is greater than 100N/ ball, high temperature resistant 1000 DEG C of not powder.With addition of the shaped granule of 15% in furnace charge, meet blast furnace, converter, the requirement of electric furnace production and technical indication.
Claims (4)
1. the method for metallurgical iron content powder recycling, metallurgical iron content powder and GY binding agent is adopted to be raw material, through batching, conveying, stir, shaping, drying process, form automatic forming technique, be processed into and meet blast furnace in metallurgical industry, converter, the furnace charge of electrosmelting or auxiliary material.
2. the method for metallurgical iron content powder recycling according to claim 1, it is characterized in that: the metallurgical mass ratio containing iron powder body and GY binding agent is: 96% ~ 98%, the GY binding agent that iron content powder accounts for the mass ratio of total raw material accounts for 2% ~ 4% of the mass ratio of total raw material.
3. the method for metallurgical iron content powder recycling according to claim 1, is characterized in that: metallurgical iron content powder by the sintering dust separation ash in metallurgy industry production process, return mine, blast furnace dedusting ash, converter electric stove dust ash, steel rolling converter dust-removing ash, steel-making slag powder etc. one or more formed with arbitrary proportion.
4. the method for metallurgy according to claim 1 metallurgical iron content powder recycling, is characterized in that: the body formed automatic production process of industrial carbonaceous powder is:
(1) metallurgical iron content powder material and molding adhesive are added in several feed bins of feed proportioning system respectively;
(2) transfer roller, dryer, forming machine, stirrer, proportioning machine is started successively;
(3) automatically the GY binding agent of the iron content powder of 96% ~ 98% and 2% ~ 4% is distinguished in input conveyor by proportioning machine;
(4) by transfer roller compound is input to twin-shaft mixer and edge runner carries out homogenizing stirring;
(5) compound be stirred is sent into by rotary conveyor the pelletizing particle that the shaping particle diameter of forming machine is 50x30mm;
(6) pelletizing particle is sent into tower drier, dry 120 minutes under about 150 DEG C conditions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410019180.8A CN104789759A (en) | 2014-01-16 | 2014-01-16 | Metallurgical iron-containing powder material resource utilization method |
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| CN201410019180.8A CN104789759A (en) | 2014-01-16 | 2014-01-16 | Metallurgical iron-containing powder material resource utilization method |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105274349A (en) * | 2015-11-26 | 2016-01-27 | 攀钢集团攀枝花钢铁研究院有限公司 | Low-sulfur metallized pellet produced by means of blast furnace fly ash and preparation method of low-sulfur metallized pellet |
| CN106591575A (en) * | 2017-03-11 | 2017-04-26 | 重庆臻焱节能环保科技有限公司 | Low-energy-consumption cold-pressing pellet and preparation method thereof |
| CN107557575A (en) * | 2016-06-30 | 2018-01-09 | 鞍钢股份有限公司 | A kind of technique for handling metallurgical dust sludge waste material |
| CN109680156A (en) * | 2019-01-31 | 2019-04-26 | 龙岩山青冶金科技有限公司 | A kind of waste incineration and generating electricity cinder resourceization utilizes system and method |
| CN109894367A (en) * | 2017-12-11 | 2019-06-18 | 南京梅山冶金发展有限公司 | A kind of large blast furnace lump ore Screening Treatment method |
| CN111154972A (en) * | 2020-01-21 | 2020-05-15 | 鞍钢股份有限公司 | Preparation method of spherical granular iron for steelmaking |
| CN111235386A (en) * | 2020-01-19 | 2020-06-05 | 中冶宝钢技术服务有限公司 | Method for forming dedusting ash |
| CN111663035A (en) * | 2020-07-07 | 2020-09-15 | 鞍钢股份有限公司 | Use method of composite carbon block for sintering |
| CN111996311A (en) * | 2020-08-27 | 2020-11-27 | 攀钢集团研究院有限公司 | Vanadium extraction coolant and preparation method thereof |
| CN114477859A (en) * | 2021-12-10 | 2022-05-13 | 河南北斗众创高新技术研究院有限公司 | Drying-free curing material for recycling industrial flue gas solid waste and application |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105274349A (en) * | 2015-11-26 | 2016-01-27 | 攀钢集团攀枝花钢铁研究院有限公司 | Low-sulfur metallized pellet produced by means of blast furnace fly ash and preparation method of low-sulfur metallized pellet |
| CN107557575A (en) * | 2016-06-30 | 2018-01-09 | 鞍钢股份有限公司 | A kind of technique for handling metallurgical dust sludge waste material |
| CN106591575A (en) * | 2017-03-11 | 2017-04-26 | 重庆臻焱节能环保科技有限公司 | Low-energy-consumption cold-pressing pellet and preparation method thereof |
| CN109894367A (en) * | 2017-12-11 | 2019-06-18 | 南京梅山冶金发展有限公司 | A kind of large blast furnace lump ore Screening Treatment method |
| CN109680156A (en) * | 2019-01-31 | 2019-04-26 | 龙岩山青冶金科技有限公司 | A kind of waste incineration and generating electricity cinder resourceization utilizes system and method |
| CN111235386A (en) * | 2020-01-19 | 2020-06-05 | 中冶宝钢技术服务有限公司 | Method for forming dedusting ash |
| CN111154972A (en) * | 2020-01-21 | 2020-05-15 | 鞍钢股份有限公司 | Preparation method of spherical granular iron for steelmaking |
| CN111663035A (en) * | 2020-07-07 | 2020-09-15 | 鞍钢股份有限公司 | Use method of composite carbon block for sintering |
| CN111996311A (en) * | 2020-08-27 | 2020-11-27 | 攀钢集团研究院有限公司 | Vanadium extraction coolant and preparation method thereof |
| CN114477859A (en) * | 2021-12-10 | 2022-05-13 | 河南北斗众创高新技术研究院有限公司 | Drying-free curing material for recycling industrial flue gas solid waste and application |
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