CN1280201A - Cold setting slag making agent - Google Patents
Cold setting slag making agent Download PDFInfo
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- CN1280201A CN1280201A CN00110231A CN00110231A CN1280201A CN 1280201 A CN1280201 A CN 1280201A CN 00110231 A CN00110231 A CN 00110231A CN 00110231 A CN00110231 A CN 00110231A CN 1280201 A CN1280201 A CN 1280201A
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- cold setting
- slag making
- agent
- making agent
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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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Abstract
Cold setting slay making agent for smelting consists of ferric scale, converter mud and blast furnace dust as steel works waste as well as adhesive. It is used to raise metal yield, avoid sputtering and coagulation of molten steel, shorten smelting period and lower cost.
Description
The present invention relates to a kind of cold setting slag making agent of smelting usefulness.
Up to the present, the slag former that adopts during the converter steelmaking of metallurgy industry is lime, fluorite after pyroprocessing.Produce molten steel splash and " returning dried " phenomenon in converting process the time with lime, fluorite slag making, brought unsafe factor and increased tap to tap time, improved steel-making cost to flushing and casting.And to have produced a large amount of waste materials in Steel Plant's production process be iron scale, converter mud, blast furnace dust, these three kinds of waste materials all contain iron for a long time contaminate environment become " three disasters ".
The objective of the invention is to overcome existing weak point, utilize above-mentioned three kinds of waste materials to produce a kind of novel cold setting slag making agent with slag former.
Technical scheme of the present invention is achieved in that in these three kinds of waste materials and all contains a large amount of iron, wherein iron scale content is 70～75%, converter mud iron content is 48～52%, the blast furnace dust iron content is 30～40%, make slag former and use by smelting and iron can be regained, improved recovery rate of iron.These three kinds of states of matter are loose and moisture, obtain iron scale water content 5～10% with water cooling during steel rolling, and converter mud is moisture to be 25～35%.After mixing, tackiness agent makes product by adding.Tackiness agent is made up of three kinds of materials: clay, water glass, alkaline dewatering agent such as Sodium Silicofluoride, calcium silicofluoride etc.The effect of clay be change the loose condition (of surface) of three kinds of waste materials with they be bonded together, water glass will be the intensity of slag former after will improving mixing.The alkalescence dewatering agent is to remove moisture.Three kinds of waste materials mix outer other composition of back deironing composition and contain alkalescence replace lime, fluorite fully.Above material is obtained the mixing moulding oven dry by following proportional quantity and is got product.
The name of material proportion
Iron scale (iron content 70～75%, moisture 5～10%) 70 ± 10%
Converter mud (iron content 48～52%, moisture 25～35%) 20 ± 5%
Blast furnace dust (iron content 30～40%) 5 ± 3%
Clay 2～10%
Alkalescence dewatering agent 0.005～0.015%
Water glass 0.5～0.8%
The invention has the advantages that: improve recovery rate of iron, the dilution slag is effective in convertor steelmaking process, can effectively avoid splash and " returning dried " phenomenon, can play quick slag making, reduce the viscosity of slag in mid-term, to reducing steel-making cost, shorten the heat and handling " three disasters ", utilization of waste material plays an important role, and also alternative simultaneously ore is used as the oxygenant of Electric furnace steel making.
Exemplify the specific embodiments of the invention explanation below.
Getting material by following proportion gets final product through mixing, compacting, drying forming:
Name of material: proportion
Iron scale (iron content 70～75%, moisture 5～10%) 70%
Converter mud (iron content 48～52%, moisture 25～35%) 20%
Blast furnace dust (iron content 30～40%) 5%
Clay 4.39%
Sodium Silicofluoride 0.01%
Water glass 0.6%
Claims (4)
1, a kind of cold setting slag making agent is characterized in that being made up of iron scale, converter mud, blast furnace dust and tackiness agent mixing.
2, cold setting slag making agent according to claim 1 is characterized in that described iron scale content is 70 ± 10%, and converter mud content is 20 ± 5%, and blast furnace dust content is 5 ± 3%, and all the other are the content of tackiness agent.
3, cold setting slag making agent according to claim 1 and 2 is characterized in that described tackiness agent is made up of water glass that accounts for overall proportion 0.005～0.015% alkaline dewatering agent and 0.5～0.8% and 2～10% clay.
4, cold setting slag making agent according to claim 3 is characterized in that described alkaline dewatering agent is Sodium Silicofluoride or calcium silicofluoride.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN00110231A CN1280201A (en) | 2000-03-17 | 2000-03-17 | Cold setting slag making agent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN00110231A CN1280201A (en) | 2000-03-17 | 2000-03-17 | Cold setting slag making agent |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1280201A true CN1280201A (en) | 2001-01-17 |
Family
ID=4580240
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN00110231A Pending CN1280201A (en) | 2000-03-17 | 2000-03-17 | Cold setting slag making agent |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1280201A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101016578B (en) * | 2007-02-14 | 2010-05-19 | 于世发 | Molten steel purifying slag agent produced by blast furnace fusion method |
| CN103131818A (en) * | 2013-02-22 | 2013-06-05 | 江苏省沙钢钢铁研究院有限公司 | Slag former for converter steelmaking and preparation method thereof |
-
2000
- 2000-03-17 CN CN00110231A patent/CN1280201A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101016578B (en) * | 2007-02-14 | 2010-05-19 | 于世发 | Molten steel purifying slag agent produced by blast furnace fusion method |
| CN103131818A (en) * | 2013-02-22 | 2013-06-05 | 江苏省沙钢钢铁研究院有限公司 | Slag former for converter steelmaking and preparation method thereof |
| CN103131818B (en) * | 2013-02-22 | 2014-12-31 | 江苏省沙钢钢铁研究院有限公司 | Slag former for converter steelmaking and preparation method thereof |
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Legal Events
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|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |