CN1282755C - Press block by crushed iron and steel - Google Patents
Press block by crushed iron and steel Download PDFInfo
- Publication number
- CN1282755C CN1282755C CNB2004100063011A CN200410006301A CN1282755C CN 1282755 C CN1282755 C CN 1282755C CN B2004100063011 A CNB2004100063011 A CN B2004100063011A CN 200410006301 A CN200410006301 A CN 200410006301A CN 1282755 C CN1282755 C CN 1282755C
- Authority
- CN
- China
- Prior art keywords
- steel
- iron
- crushed iron
- press block
- block made
- 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
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title claims abstract description 82
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 57
- 239000010959 steel Substances 0.000 title claims abstract description 57
- 229910052742 iron Inorganic materials 0.000 title claims abstract description 40
- 239000002893 slag Substances 0.000 claims abstract description 23
- 239000002994 raw material Substances 0.000 claims abstract description 12
- 239000004115 Sodium Silicate Substances 0.000 claims abstract description 4
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims abstract description 4
- 229910052911 sodium silicate Inorganic materials 0.000 claims abstract description 4
- 239000011230 binding agent Substances 0.000 claims description 3
- 238000000748 compression moulding Methods 0.000 claims description 3
- 238000012856 packing Methods 0.000 claims description 3
- 238000003756 stirring Methods 0.000 claims description 3
- 238000009628 steelmaking Methods 0.000 abstract description 10
- 239000002699 waste material Substances 0.000 abstract description 10
- 238000007885 magnetic separation Methods 0.000 abstract description 5
- 238000005265 energy consumption Methods 0.000 abstract description 3
- 239000000463 material Substances 0.000 abstract description 3
- 238000000034 method Methods 0.000 abstract description 3
- 239000000853 adhesive Substances 0.000 abstract 1
- 230000001070 adhesive effect Effects 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- 238000005245 sintering Methods 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 3
- 239000004484 Briquette Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000013467 fragmentation Methods 0.000 description 1
- 238000006062 fragmentation reaction Methods 0.000 description 1
Images
Classifications
-
- 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
Landscapes
- Processing Of Solid Wastes (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The present invention relates to a press block made from crushed iron and steel, which is made from granular and powdery crushed iron and steel after steel slag is processed by magnetic separation. The present invention is characterized in that granular and powdery crushed iron, steel, iron chips are used as raw materials, wherein the grade of the granular and powdery crushed iron, steel, iron chips is greater than 90% and the granularity is 0 to 15mm after the steel slag is processed by magnetic separation; 5% of sodium silicate adhesive is added into the raw materials according to the weight ratio of the raw materials; after uniform mixing, the final mixture is put into a mould, and then is pressed and shaped into the press block made from crushed iron and steel by a press machine. The press block made from crushed iron and steel has the structure that the middle section is in a cylinder shape, and the end surfaces of both ends are in a circular arc shape. The press block made from crushed iron and steel can be pressed into a cylinder, a square, a rectangle and a sphere in shape. The press block made from crushed iron and steel of the present invention can be directly used for steel making, and reduces two processes of sintering and ironmaking of magnetic separation steel slag produced by the prior art. Thus, the present invention enhances the application value of waste slag in steel making, and reduces energy consumption and the consumption of other materials. The grade of the press block made from crushed iron and steel is higher than that of the magnetic separation steel slag produced by the prior art, and the steel slag resources are fully used.
Description
Technical field
The invention belongs to the comprehensive utilization of metallurgical industry revolving furnace steel slag, relate to a kind ofly use the particulate state that obtains after steel slag magnetically dressing is handled again, pulverous broken iron and steel is made a kind of broken iron and steel briquetting.
Background technology
At present,, only limit to both at home and abroad, and to obtain grade through magnetic separation be 40～60% steel slag magnetically dressing, as the raw material of sintered ironmaking technology its fragmentation for the processing of steel-making waste residue.This technology not only makes the using value of steel-making waste residue do not embodied fully, but also causes the waste of resource.
Summary of the invention
The objective of the invention is for the using value that improves steel-making waste residue and widen its Application Areas, alleviate the environmental pollution that steel-making waste residue causes, provide a kind of and use the particulate state that obtains after steel slag magnetically dressing is handled again, pulverous broken iron and steel is made a kind of broken iron and steel briquetting.
A kind of broken iron and steel briquetting content Description of the present invention:
A kind of broken iron and steel briquetting of the present invention, it is characterized in that: grade＞90% that obtains after steel slag magnetically dressing is handled again, granularity are raw material for the particulate state of≤15mm or pulverous broken iron and steel or iron filings, the weight ratio of pressing raw material adds 5% sodium silicate binder, the mould of packing into after stirring is made broken iron and steel briquetting through pressing machine compression moulding; The shape of broken iron and steel briquetting is an interlude (1) for cylindric, two ends end face (2) are the arc surface shape, perhaps the shape of broken iron and steel briquetting is pressed into cylindrical, square, rectangle or sphere.
The present invention carries out deep processing to processed conventionally waste steel slag to handle grade＞90% that obtains after the steel slag magnetically dressing of back gained is handled again, the particulate state that granularity is 0～15mm, pulverous broken iron and steel, iron filings is that raw material is made broken iron and steel briquetting, can be directly used in steel-making, having reduced the steel slag magnetically dressing that existing explained hereafter goes out must be through oversintering and ironmaking two procedures.Thereby improved the using value of steel-making waste residue greatly, reduced the consumption of energy consumption and other material.Its grade is higher than the steel slag magnetically dressing of existing explained hereafter far away, thereby steel slag resource is fully used.
Description of drawings
Fig. 1 is broken iron and steel briquette structure synoptic diagram
Among the figure: 1 is that interlude, 2 is end face
Embodiment
The present invention carries out deep processing to processed conventionally waste steel slag to handle the particulate state, pulverous broken iron and steel, the iron filings that obtain after the steel slag magnetically dressing of back gained is handled is that raw material is made broken iron and steel briquetting again, the present invention realizes like this, grade＞90% that obtains after steel slag magnetically dressing handled again, the particulate state that granularity is 0～15mm, pulverous broken iron and steel, iron filings are raw material, the weight ratio of pressing raw material adds 5% sodium silicate binder, the mould of packing into after stirring is made broken iron and steel briquetting through pressing machine compression moulding.See Fig. 1, the shape of broken iron and steel briquetting be interlude 1 for cylindric, two ends end face 2 is the arc surface shape.Broken iron and steel briquetting can be directly used in steel-making, and having reduced the steel slag magnetically dressing that existing explained hereafter goes out must be through oversintering and ironmaking two procedures.Thereby improved the using value of steel-making waste residue greatly, reduced the consumption of energy consumption and other material.Its grade is higher than the steel slag magnetically dressing of existing explained hereafter far away, thereby steel slag resource is fully used.
Claims (1)
1, a kind of broken iron and steel briquetting, it is characterized in that: grade＞90% that obtains after steel slag magnetically dressing is handled again, granularity are raw material for the particulate state of≤15mm or pulverous broken iron and steel or iron filings, the weight ratio of pressing raw material adds 5% sodium silicate binder, the mould of packing into after stirring is made broken iron and steel briquetting through pressing machine compression moulding; The shape of broken iron and steel briquetting is an interlude (1) for cylindric, two ends end face (2) are the arc surface shape, perhaps the shape of broken iron and steel briquetting is pressed into cylindrical, square, rectangle or sphere.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100063011A CN1282755C (en) | 2004-02-24 | 2004-02-24 | Press block by crushed iron and steel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100063011A CN1282755C (en) | 2004-02-24 | 2004-02-24 | Press block by crushed iron and steel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1560287A CN1560287A (en) | 2005-01-05 |
| CN1282755C true CN1282755C (en) | 2006-11-01 |
Family
ID=34439740
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100063011A Expired - Fee Related CN1282755C (en) | 2004-02-24 | 2004-02-24 | Press block by crushed iron and steel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1282755C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102534198A (en) * | 2010-12-11 | 2012-07-04 | 鞍山钢铁集团公司 | Method for pelletizing refined iron powder extracted from steel slag for converter steel making |
| EP2740577B1 (en) * | 2012-12-05 | 2015-10-14 | Zehnder Group International AG | Method for producing a moulded part |
-
2004
- 2004-02-24 CN CNB2004100063011A patent/CN1282755C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1560287A (en) | 2005-01-05 |
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|---|---|---|---|
| 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 | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |