CN1108200C - Comprehensive utilization of steel slags - Google Patents
Comprehensive utilization of steel slags Download PDFInfo
- Publication number
- CN1108200C CN1108200C CN 00116008 CN00116008A CN1108200C CN 1108200 C CN1108200 C CN 1108200C CN 00116008 CN00116008 CN 00116008 CN 00116008 A CN00116008 A CN 00116008A CN 1108200 C CN1108200 C CN 1108200C
- Authority
- CN
- China
- Prior art keywords
- slag
- steel
- steel slag
- iron
- brick
- 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
Images
Abstract
The present invention relates to a method for the comprehensive use of steel slag. After the steel slag is pulverized, the working procedures of baking drying, magnetic selection sieving, milling, pulverization, grading, magnetic selection in a wet method, grading, pellet making, etc. are carried out. 8 The present invention has the advantages that the steel slag of a steel plant can be totally and effectively used without any waste materials. The present invention avoids the disadvantage of serious environmental pollution caused by that the steel slag of the current steel plant occupies a lot of farmland and land, and large social benefits and economic benefits are brought to a society. For wu steel, all steel slag of the wu steel is treated by the method, total investment is 81, 740, 000 yuan, and annual return is 36, 363, 800 yuan. About thousands of mu of land is saved.
Description
The present invention relates to the slag comprehensive utilization environmental technology field, specifically a kind of slag comprehensive utilization method.
Now in the world slag utilize method a lot, wherein pulverizing is arranged after, only select bulk scum wherein for use, other thing all abandons.Have plenty of big iron and the wherein a part of granulated slag chosen wherein and make road brick ceramic tile etc.No matter any method is utilized slag now, all be a part of utilizing wherein, remaining discarded object still pollutes environment, and the economic benefit of Multipurpose Utilization of Steel Slag can not get fully playing simultaneously.Caused the waste of material.
The objective of the invention is the iron in the slag, ash all utilizes, and does not cause the method for the slag comprehensive utilization of any contaminated environment and discarded object land occupation.
The method of slag comprehensive utilization of the present invention comprises slag is placed on carries out fragmentation in the system of giving brokenly, slag after the fragmentation is carried out dehumidifying in drying system handle, make water content below 8%, forwarding the magnetic separation screening system to classifies, tell greater than the slag material of 30mm with less than the slag material of 30mm, reach three kinds of particle steel and smart iron powder compounds, slag material warehouse-in greater than 30mm is standby, change fine grinding crushing and classification system over to less than the slag material of 30mm and carry out the fine grinding crushing and classification, be divided into ground steel slag, middle powder and iron-riched slag; Ground steel slag can be made cement and concrete active admixture, and middle powder can be smelted iron cosolvent, high class pavement brick or steel slag brick, and iron-riched slag, particle steel and smart iron powder compound are put into wet magnetic separation hierarchy system magnetic separation classification simultaneously; Tell particle steel, smart iron powder and tailings; The particle steel is a steelmaking feed, and tailings can be made high class pavement brick or steel slag brick; Smart iron powder is put into pelletizing manufacturing system adding additive and is made pellet, and pellet is the good raw material of ironmaking.
The advantage of slag comprehensive utilization method of the present invention is that the slag of steel mill can obtain all effectively utilizing, make the best use of everything, have not a particle of discarded object, the slag that has solved present steel mill occupies a large amount of farmlands and soil, caused the drawback of very big environmental pollution, brought great social benefit and economic benefit to society.With regard to Wuhan Iron and Steel Plant, whole slags of the intact Wuhan Iron and Steel Plant of this PROCESS FOR TREATMENT, 8,174 ten thousand yuan of gross investments, annual return is 3636.38 ten thousand yuan.Save nearly thousand mu in soil.
Below in conjunction with accompanying drawing embodiment is elaborated:
Accompanying drawing is the method flow diagram of slag comprehensive utilization.
With reference to the accompanying drawings, slag put carry out fragmentation in the system of giving brokenly.Carrying out dehumidifying in the slag drying system after the fragmentation handles, make water content below 8%, forwarding the magnetic separation screening system to classifies, tell greater than the slag material of 30mm with less than the slag material of 30mm, reach three kinds of particle steel and smart iron powder compounds, standby less than the slag material of 0～30mm warehouse-in, change fine grinding crushing and classification system over to less than the slag material of 30mm and carry out the fine grinding crushing and classification, be divided into ground steel slag, middle powder and iron-riched slag; Ground steel slag can be made cement and concrete active admixture, and middle powder can be smelted iron cosolvent, high class pavement brick or steel slag brick; Iron-riched slag, particle steel and smart iron powder compound are put into wet magnetic separation hierarchy system magnetic separation classification simultaneously; Tell particle steel, smart iron powder and tailings; The particle steel is a steelmaking feed, and tailings can be made high class pavement brick or steel slag brick, and smart iron powder is put into pelletizing manufacturing system adding additive and made pellet, and pellet is the good raw material of ironmaking.
Claims (1)
1, a kind of method of slag comprehensive utilization, it is characterized in that slag is placed on and carry out fragmentation in the system of giving brokenly, slag after the fragmentation carries out dehumidifying in drying system handles, make water content below 8%, forwarding the magnetic separation screening system to classifies, tell greater than the slag material of 30mm with less than the slag material of 30mm, reach three kinds of particle steel and smart iron powder compounds, slag material warehouse-in greater than 30mm is standby, change fine grinding crushing and classification system over to less than the slag material of 30mm and carry out the fine grinding crushing and classification, be divided into ground steel slag, middle powder and iron-riched slag, ground steel slag can be made cement and concrete active admixture, in powder can smelt iron cosolvent, high class pavement brick or steel slag brick, iron-riched slag, particle steel and smart iron powder compound are put into wet magnetic separation hierarchy system magnetic separation classification simultaneously, tell the particle steel, smart iron powder and tailings, the particle steel is a steelmaking feed, tailings can be made high class pavement brick or steel slag brick, and smart iron powder is put into pelletizing manufacturing system adding additive and made pellet, and pellet is the good raw material of ironmaking.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00116008 CN1108200C (en) | 2000-09-08 | 2000-09-08 | Comprehensive utilization of steel slags |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00116008 CN1108200C (en) | 2000-09-08 | 2000-09-08 | Comprehensive utilization of steel slags |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1282635A CN1282635A (en) | 2001-02-07 |
| CN1108200C true CN1108200C (en) | 2003-05-14 |
Family
ID=4585439
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00116008 Expired - Fee Related CN1108200C (en) | 2000-09-08 | 2000-09-08 | Comprehensive utilization of steel slags |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1108200C (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1301798C (en) * | 2004-03-01 | 2007-02-28 | 大地亮环保服务有限公司 | Water washing type slag treatment method |
| CN1304119C (en) * | 2003-12-15 | 2007-03-14 | 湘潭钢铁集团有限公司 | Process for ball milling and water washing of waste iron and steel slag, slag slurry treatment process, and apparatus therefor |
| CN102019286A (en) * | 2010-12-13 | 2011-04-20 | 济南鲍安环保技术开发有限公司 | Method for treating steel slag tailings subjected to magnetic separation |
| CN104271777A (en) * | 2012-05-16 | 2015-01-07 | Posco公司 | Particle size sorting method and particle size sorting device for iron ore fines |
Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100445398C (en) * | 2004-08-02 | 2008-12-24 | 张维田 | Steel slag super fine powder processing technique and system |
| CN100386446C (en) * | 2005-06-30 | 2008-05-07 | 武汉理工大学 | Method of high efficiency recovering iron from slag |
| CN100383260C (en) * | 2006-06-06 | 2008-04-23 | 济南鲍德炉料有限公司 | Process for producing steel slag iron fine powder |
| CN101264464B (en) * | 2007-03-15 | 2012-12-12 | 鞍山钢铁集团公司 | Purification technique of steel scoria magnetic separation product |
| CN101391457B (en) * | 2007-09-18 | 2010-04-21 | 中冶集团武汉冶建技术研究有限公司 | Low grade tailing steel slag re-use method |
| CN101748222B (en) * | 2008-12-19 | 2012-02-01 | 鞍山钢铁集团公司 | Steel tail slag mud processing technology |
| CN102211891A (en) * | 2010-04-01 | 2011-10-12 | 同济大学 | Concrete admixture and preparation method thereof |
| CN102049520A (en) * | 2010-11-29 | 2011-05-11 | 南陵鹏程机械制造有限公司 | Extraction method of environment-friendly and energy-saving steel grit |
| CN104588389B (en) * | 2014-11-19 | 2016-06-29 | 晋江市冠兴建材有限责任公司 | Fuel waste residue recovery and processing system |
| CN105087904A (en) * | 2015-09-29 | 2015-11-25 | 攀枝花钢城集团有限公司 | Iron powder tailing treatment technology |
| CN105944811A (en) * | 2016-04-25 | 2016-09-21 | 浙江哈斯科节能技术有限公司 | Dry method purification process and device of slag steel |
| CN109092844B (en) * | 2018-06-22 | 2019-04-09 | 南京芬钢环保科技有限公司 | Steel slag multistage treatment method |
| CN109809718B (en) * | 2019-04-08 | 2021-11-12 | 武汉理工大学 | Cascade production and grading application method of steel slag sand |
| CN112007752B (en) * | 2020-08-17 | 2023-11-28 | 广西冶固科技发展有限公司 | Method and system for echelon recycling separation of stainless steel refining furnace tailings |
-
2000
- 2000-09-08 CN CN 00116008 patent/CN1108200C/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1304119C (en) * | 2003-12-15 | 2007-03-14 | 湘潭钢铁集团有限公司 | Process for ball milling and water washing of waste iron and steel slag, slag slurry treatment process, and apparatus therefor |
| CN1301798C (en) * | 2004-03-01 | 2007-02-28 | 大地亮环保服务有限公司 | Water washing type slag treatment method |
| CN102019286A (en) * | 2010-12-13 | 2011-04-20 | 济南鲍安环保技术开发有限公司 | Method for treating steel slag tailings subjected to magnetic separation |
| CN102019286B (en) * | 2010-12-13 | 2011-11-09 | 济南鲍安环保技术开发有限公司 | Method for treating steel slag tailings subjected to magnetic separation |
| CN104271777A (en) * | 2012-05-16 | 2015-01-07 | Posco公司 | Particle size sorting method and particle size sorting device for iron ore fines |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1282635A (en) | 2001-02-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1108200C (en) | Comprehensive utilization of steel slags | |
| CN102688880B (en) | Method for efficiently recovering and reselecting steel slag | |
| Zhang et al. | Current situation and comprehensive utilization of iron ore tailing resources | |
| CN103406329B (en) | Method for comprehensively treating and utilizing household garbage incineration slag | |
| CN104624607B (en) | Domestic waste incineration residue processing method | |
| CN105567246B (en) | A kind of renovation agent of heavy metal polluted soil in mine field and preparation method thereof | |
| CN106365281B (en) | A kind of water body dephosphorized dose of preparation method and water body dephosphorized method | |
| CN104446041B (en) | A kind of method that secondary slag of Copper making produces slag micropowder | |
| CN102046558B (en) | Recovery and upgrading process of incinerator bottom ash prom municipal solid waste | |
| CN104178178B (en) | A kind of organic amendment that can passivation vegetable soil copper zinc lead | |
| Mishra et al. | Green cement for sustainable concrete using marble dust | |
| CN108585391B (en) | A kind of charcoal renovation agent of the marine sediment of heavy metal pollution and preparation method thereof and restorative procedure | |
| CN100544817C (en) | Remove the water treatment agent method for making and the water treatment agent of suspension, nitrogen, phosphorus and stench | |
| KR102018723B1 (en) | Coal bottom ash using coal flooring and its manufacturing method | |
| Ruslan et al. | Effect of crushed cockle shell as partial fine aggregate replacement on workability and strength of lightweight concrete | |
| WO2006098202A1 (en) | Fired product | |
| CN102701826B (en) | Method for stacking tailings for reclamation | |
| CN112225499A (en) | Method for making brick by using tailings and furnace slag | |
| JPH11216447A (en) | Civil engineering material | |
| CN114045365B (en) | Steel slag treatment process and application of obtained tailings | |
| CN106495623A (en) | A kind of method that utilization molybdic tailing prepares steam-pressing brisk | |
| Xu et al. | Effects of blast furnace slag on the immobilization, plant uptake and translocation of Cd in a contaminated paddy soil | |
| CN101913709A (en) | Composite ecological intercepting padding material and preparation method | |
| CN202224430U (en) | Equipment combination for pulverized fuel ash comprehensive treatment technology | |
| CN109500049A (en) | A kind of daily-life garbage without environmental pollution recycling processing method utilized with effluent cycle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Application publication date: 20010207 Assignee: Shuangyashan New Era Cement Co., Ltd. Assignor: Wuhan Metallurgical Dregs Environment Protection Engineering Co., Ltd. Contract record no.: 2010230000006 Denomination of invention: Comprehensive utilization of steel slags Granted publication date: 20030514 License type: Exclusive License Record date: 20100408 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20030514 Termination date: 20190908 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |