CN106282541A - A kind of environmental protection closed raw material blending method - Google Patents
A kind of environmental protection closed raw material blending method Download PDFInfo
- Publication number
- CN106282541A CN106282541A CN201610828181.6A CN201610828181A CN106282541A CN 106282541 A CN106282541 A CN 106282541A CN 201610828181 A CN201610828181 A CN 201610828181A CN 106282541 A CN106282541 A CN 106282541A
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- CN
- China
- Prior art keywords
- environmental protection
- raw material
- dedusting ash
- material blending
- blending method
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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
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The present invention relates to steel plant's raw material blending technology, particularly to a kind of environmental protection closed raw material blending method, rich ore powder, the ironworks dedusting ash, the dedusting ash of making steel that are produced in each production region use tank car transport, the most air conveying to closing feed bin, tank car directly participates in compound dispensing, is transported to sintering machine；The present invention can effectively solve to cancel the negative effect that brings of material storage yard, and avoid major part dedusting ash and land and the problem of reentrainment of dust；Secondly, use and close buffer bin production, stable sintering raw materials quality can be played, reduce iron charge reason material cost, it is achieved the environmental protection recycling of solid refuse；Further, since mixing material cancellation is landed, natural wastage reduces, and Iron Ore Powder totally loss rate reduces by 81%.
Description
Technical field
The present invention relates to steel plant's raw material blending technology, particularly to a kind of environmental protection closed raw material blending method.
Background technology
At present, major part iron and steel enterprise takes outdoor blending-field production technology, to neutralize various Iron Ore Powder composition, property
Energy；Outdoor blending-field accounts for the 30% of a stock ground area, is valuable land resource；Corresponding mixing stockpile material produces, band
Carry out a certain degree of environmental pollution.
Iron and steel enterprise's each production process dedusting point is more, and my company's major part dedusting ash all achieves closed cycle and disappears at present
Changing, main whereabouts is blending-field；All kinds of dedusting ash, during unloading ash, take the means of adding water more, but because of the degree of adding water not
With, dedusting ash moisture is uneven, causes its blanking uneven, cause mixing material composition fluctuation, and then will affect compound moisture content
Stability, cause sintering process main technologic parameters, as the bed of material, outlet temperature fluctuation are relatively big, be unfavorable for carrying of sintering output
Rise.
Summary of the invention
The problem that the present invention solves above-mentioned existence, it is provided that a kind of environmental protection closed raw material blending method, it solves skill
The technical scheme of art problem is:
A kind of environmental protection closed raw material blending method, step is as follows:
Rich ore powder, the ironworks dedusting ash produced in each production region, dedusting ash of making steel use tank car transport, more air conveying to envelope
Closing feed bin, tank car directly participates in compound dispensing, is transported to sintering machine and is sintered.
Described mixture moisture is 7.5%-8.5%.
Described sintering process thickness of feed layer is 650mm, outlet temperature is not less than 330 DEG C.
The method have the advantages that
The present invention can effectively solve to cancel the negative effect that brings of material storage yard, and avoid major part dedusting ash and land and secondary
The problem of airborne dust；Secondly, use and close buffer bin production, stable sintering raw materials quality can be played, reduce iron charge reason material cost,
Moisture is stably held in 7.5%-8.5%, realizes the environmental protection recycling of solid refuse；Owing to mixing material cancellation is landed, natural
Loss reduces, and Iron Ore Powder totally loss rate reduces by 81%；The raising of sintering process thickness of feed layer is stablized to 650mm, outlet temperature
More than 330 DEG C.
Accompanying drawing explanation
Fig. 1 is the process chart of a kind of environmental protection of the present invention closed raw material blending method.
Detailed description of the invention
Below in conjunction with the accompanying drawing of the present invention, technical scheme is clearly and completely described.
Embodiment 1
A kind of environmental protection closed raw material blending method, step is as follows:
Rich ore powder, the ironworks dedusting ash produced in each production region, dedusting ash of making steel use tank car transport, more air conveying to envelope
Closing feed bin, tank car directly participates in compound dispensing, is transported to sintering machine and is sintered.
Described mixture moisture is 7.5%.
Described sintering process thickness of feed layer is 650mm, outlet temperature 330 DEG C.
Embodiment 2
A kind of environmental protection closed raw material blending method, step is as follows:
Rich ore powder, the ironworks dedusting ash produced in each production region, dedusting ash of making steel use tank car transport, more air conveying to envelope
Closing feed bin, tank car directly participates in compound dispensing, is transported to sintering machine and is sintered.
Described mixture moisture is 8%.
Described sintering process thickness of feed layer is 650mm, outlet temperature 350 DEG C.
Embodiment 3
A kind of environmental protection closed raw material blending method, step is as follows:
Rich ore powder, the ironworks dedusting ash produced in each production region, dedusting ash of making steel use tank car transport, more air conveying to envelope
Closing feed bin, tank car directly participates in compound dispensing, is transported to sintering machine and is sintered.
Described mixture moisture is 8.5%.
Described sintering process thickness of feed layer is 650mm, outlet temperature 340 DEG C.
In addition to the implementation, the present invention can also have other embodiments, all employing equivalents or equivalent transformation shape
The technical scheme become, all falls within the protection domain of application claims.
Claims (3)
1. an environmental protection closed raw material blending method, step is as follows:
Rich ore powder, the ironworks dedusting ash produced in each production region, dedusting ash of making steel use tank car transport, more air conveying to envelope
Closing feed bin, tank car directly participates in compound dispensing, is transported to sintering machine and is sintered.
A kind of environmental protection closed raw material blending method the most according to claim 1, is characterized in that, described mixture moisture is
7.5%-8.5%。
A kind of environmental protection closed raw material blending method the most according to claim 1, is characterized in that, the described sintering process bed of material
Thickness is 650mm, outlet temperature is not less than 330 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610828181.6A CN106282541A (en) | 2016-09-19 | 2016-09-19 | A kind of environmental protection closed raw material blending method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610828181.6A CN106282541A (en) | 2016-09-19 | 2016-09-19 | A kind of environmental protection closed raw material blending method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106282541A true CN106282541A (en) | 2017-01-04 |
Family
ID=57712363
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610828181.6A Pending CN106282541A (en) | 2016-09-19 | 2016-09-19 | A kind of environmental protection closed raw material blending method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106282541A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20010047698A1 (en) * | 2000-03-21 | 2001-12-06 | Mcclelland James M. | Method for the separation and recycling of hot fines in hot briquetting of reduced iron |
| CN101445868A (en) * | 2008-12-22 | 2009-06-03 | 莱芜钢铁集团有限公司 | Technique for proportioning different materials in steel plant |
| CN101569890A (en) * | 2009-05-25 | 2009-11-04 | 北京新北水水泥有限责任公司 | New disposal method of fly ash |
| CN101962717A (en) * | 2010-10-26 | 2011-02-02 | 马钢设计研究院有限责任公司 | Raw material treatment and pelletizing system process for rotary hearth furnace |
-
2016
- 2016-09-19 CN CN201610828181.6A patent/CN106282541A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20010047698A1 (en) * | 2000-03-21 | 2001-12-06 | Mcclelland James M. | Method for the separation and recycling of hot fines in hot briquetting of reduced iron |
| CN101445868A (en) * | 2008-12-22 | 2009-06-03 | 莱芜钢铁集团有限公司 | Technique for proportioning different materials in steel plant |
| CN101569890A (en) * | 2009-05-25 | 2009-11-04 | 北京新北水水泥有限责任公司 | New disposal method of fly ash |
| CN101962717A (en) * | 2010-10-26 | 2011-02-02 | 马钢设计研究院有限责任公司 | Raw material treatment and pelletizing system process for rotary hearth furnace |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| CB02 | Change of applicant information |
Address after: 271612 Feicheng City, Shandong Province Shi Heng Town Applicant after: Shiheng Special Steel Group Co., Ltd. Address before: 271612 Feicheng City, Shandong Province Shi Heng Town Applicant before: Shandong Shiheng Special Steel Group Co., Ltd. |
|
| COR | Change of bibliographic data | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170104 |