CN105274329A - Pellet manufactured through multiple metal smelting waste and preparing method of pellet - Google Patents
Pellet manufactured through multiple metal smelting waste and preparing method of pellet Download PDFInfo
- Publication number
- CN105274329A CN105274329A CN201510638303.0A CN201510638303A CN105274329A CN 105274329 A CN105274329 A CN 105274329A CN 201510638303 A CN201510638303 A CN 201510638303A CN 105274329 A CN105274329 A CN 105274329A
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- slag
- waste
- cement
- pelletizing
- pellet
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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
Abstract
The invention relates to a pellet manufactured through steel smelting slag, desulfuration waste and molybdenum smelting waste and a preparing method of the pellet, and belongs to the field of metal smelting waste resourceful reutilization and pellet manufacturing. Iron ore powder or iron-containing waste mixed steel smelting slag serves as raw materials, desulfuration waste with mirabilite as a main component or molybdenum smelting waste with sodium nitrate as a main component serves as an activating agent, mixed cement of one or more of portland cement, blast furnace slag cement, high-early-strength cement and geopolymeric cement is added to serve as a bonding agent, and then the pellet is manufactured. By utilizing the waste slag produced in the steel smelting procedure, the waste byproduct desulfuration waste generated in the sintering procedure and waste sodium sulfate generated in the molybdenum smelting procedure, the treatment cost of the waste can be reduced, the pollution of the waste to the environment is reduced, more raw materials are saved, and the pellet manufacturing cost is reduced.
Description
Technical field
The present invention relates to Metal smelting changing rejected material to useful resource recycling and pelletizing manufactures field, more particularly, relate to a kind of pelletizing and preparation method thereof utilizing electrodes with slags after steel smelting, desuifurized and refining molybdenum waste residue making.
Background technology
A large amount of wastes can be produced, such as blast-furnace slag, red mud, slag, flyash etc. in smelting iron and steel.The blast furnace slag that iron-making production produces is 33% ~ 35%, and the slag produced in steelmaking process is 12.5% ~ 14%.Since " 12 ", the metallurgical slag that China's Iron And Steel Industry produces every year is more than 300,000,000 tons.General by smelting iron and steel waste treatment, but processing cost is relatively high, and take a large amount of soil, therefore smelt waste in a large number and arbitrarily abandoned, severe contamination water and soil.
Effective utilization of smelting iron and steel waste day by day becomes the research emphasis of trade waste process.Smelting iron and steel waste residue and cement have very similar chemical composition, generally smelting iron and steel waste residue are used for manufacture of cement.If application number is the patents of invention such as 96114045.3,201110360592,201410826426.2, but the cement fineness utilizing smelting iron and steel waste residue to produce is difficult to ensure, unstable properties, and slag cement price is lower.Because its utilizing status is poor, be not generally used.
The another kind of purposes of smelting iron and steel waste residue is used as agglomerate raw material, such as application number is in the patent of invention of 201410528243.2, the binding agent of the bessemer furnace slag after hydrolysis efflorescence, 5-20% and the water of 15-35% are mixed, is pressed into particle diameter and is not less than 20mm pelletizing.But can not stripping when slag waste contacts with water, be difficult to form hydrate sclerosis, affect pelletizing hardness; Iron and steel content in addition in slag is low, and output is few, only as smelting iron and steel source, causes highly energy-consuming.
Summary of the invention
For Problems existing in above-mentioned smelting iron and steel waste residue recycling, the invention discloses a kind of pelletizing utilizing smelting iron and steel waste residue and waste residue saltcake to make and preparation method thereof.
The concrete scheme of the making method that the present invention relates to is:
(i) in the virgin iron ore of 100 weight parts, add the cement of the slag of 5-15 weight part, the promoting agent of 0.05-2 weight part and 0-5 weight part, mix.
(ii) in the mixture of the above-mentioned (i) step of every 100 weight parts, add the water of 10-29 weight part
(iii) with nodulizer, the mixture of (ii) step is made spherical pelletizing, and solidify.
The pelletizing of aforesaid method manufacture directly can drop into sintering oven, blast furnace, FINEX stove iron and steel smelting.
Slag described in such scheme is blast-furnace slag, electric furnace slag, KR slag, magnesium refining slag, in stainless steel refining slag a kind or multiplely to mix.
Described promoting agent is waste by-product desulfurization dirt mud (the saltcake NaSO produced in sintering circuit
410H
2or the discarded SODIUMNITRATE (NaNO produced in refining molybdenum operation O)
3).
Described cement is the mixed cement of one or more in silicate cement, slag cement, short-term strength cement, native polywater mud.
Beneficial effect of the present invention
The present invention is the waste sulfate sodium resource utilization recycling will produced in the waste by-product desulfurization dirt mud produced in the Waste Slag produced in smelting iron and steel operation, sintering circuit and refining molybdenum operation.Not only can prevent industrial residue pollution, more can save starting material to reduce costs.
Accompanying drawing explanation
Fig. 1 patent system of the present invention is for schema
specific implementation method
Example 1
In the virgin iron breeze of 100g, add the desulfurization dirt mud of the blast-furnace slag powder of 5g, 0.05g, after mixing with stirrer, add the water of 10g, again mix rear collar plate shape nodulizer with stirrer and make the spherical pelletizing that diameter is 20mm.Health drying treatment will be solidified.Make 10 samples by identical proportioning, test its intensity, it is 85kg/ that result shows intensity on the 3rd, and intensity was 180kg/ on 7th.
Example 2
In the virgin iron breeze of 100g, add the desulfurization dirt mud of the blast-furnace slag powder of 7g, 1g, after mixing with stirrer, add the water of 15g, again mix rear collar plate shape nodulizer with stirrer and make the spherical pelletizing that diameter is 20mm.Health drying treatment will be solidified.Make 10 samples by identical proportioning, test its intensity, it is 90kg/ that result shows intensity on the 3rd, and intensity was 186kg/ on 7th.
Example 3
100g virgin iron breeze or in add the blast-furnace slag powder of 9g, the desulfurization dirt mud of 2g, after mixing with stirrer, add the water of 20g, again mixing rear collar plate shape nodulizer with stirrer, to make diameter be the spherical pelletizing of 20mm.Health drying treatment will be solidified.Make 10 samples by identical proportioning, test its intensity, it is 95kg/ that result shows intensity on the 3rd, and intensity was 194kg/ on 7th.
Example 4
In the virgin iron breeze of 100g, add the desulfurization dirt mud of the blast-furnace slag powder of 11g, 3g, after mixing with stirrer, add the water of 20g, again mix rear collar plate shape nodulizer with stirrer and make the spherical pelletizing that diameter is 20mm.Health drying treatment will be solidified.Make 10 samples by identical proportioning, test its intensity, it is 102kg/ that result shows intensity on the 3rd, and intensity was 211kg/ on 7th.
Example 5
In the virgin iron breeze of 100g, add the desulfurization dirt mud of the blast-furnace slag powder of 13g, 4g, after mixing with stirrer, add the water of 20g, again mix rear collar plate shape nodulizer with stirrer and make the spherical pelletizing that diameter is 20mm.Health drying treatment will be solidified.Make 10 samples by identical proportioning, test its intensity, it is 108kg/ that result shows intensity on the 3rd, and intensity was 228kg/ on 7th.
Example 6
In the virgin iron breeze of 100g, add the desulfurization dirt mud of the blast-furnace slag powder of 15g, 5g, after mixing with stirrer, add the water of 20g, again mix rear collar plate shape nodulizer with stirrer and make the spherical pelletizing that diameter is 20mm.Health drying treatment will be solidified.Make 10 samples by identical proportioning, test its intensity, it is 121kg/ that result shows intensity on the 3rd, and intensity was 227kg/ on 7th.
Example 7
The blast-furnace slag powder of 13g, the desulfurization dirt mud of 3g, the silicate cement of 1 gram is added in the virgin iron breeze of 100g; after mixing with stirrer; add the water of 20g, again mix rear collar plate shape nodulizer with stirrer and make the spherical pelletizing that diameter is 20mm.Health drying treatment will be solidified.Make 10 samples by identical proportioning, test its intensity, it is 119kg/ that result shows intensity on the 3rd, and intensity was 235kg/ on 7th.
Example 8
The blast-furnace slag powder of 13g, the desulfurization dirt mud of 3g, the silicate cement of 3 grams is added in the virgin iron breeze of 100g; after mixing with stirrer; add the water of 24g, again mix rear collar plate shape nodulizer with stirrer and make the spherical pelletizing that diameter is 20mm.Health drying treatment will be solidified.Make 10 samples by identical proportioning, test its intensity, it is 127kg/ that result shows intensity on the 3rd, and intensity was 246kg/ on 7th.
Example 9
The blast-furnace slag powder of 13g, the desulfurization dirt mud of 3g, the silicate cement of 5 grams is added in the virgin iron breeze of 100g; after mixing with stirrer; add the water of 29g, again mix rear collar plate shape nodulizer with stirrer and make the spherical pelletizing that diameter is 20mm.Health drying treatment will be solidified.Make 10 samples by identical proportioning, test its intensity, it is 136kg/ that result shows intensity on the 3rd, and intensity was 254kg/ on 7th.
Claims (5)
1. pelletizing utilizing various metals melting waste slag to make and preparation method thereof, it is characterized in that being that concrete steps are as follows, add the cement of the mixing slag of 5-15 weight part, the promoting agent of 0.05-2 weight part and 0-5 weight part in the virgin iron ore of 100 weight parts, mix and obtain mixture; In every 100 weight part mixtures, add the water of 10-29 weight part, make spherical pelletizing, solidification health, obtains pelletizing after drying.
2. a kind of pelletizing utilizing various metals melting waste slag to make according to claim 1 and preparation method thereof, is characterized in that mixing slag is one or more mixture in blast-furnace slag, electric furnace slag, KR slag, magnesium refining slag, stainless steel refining slag.
3. a kind of pelletizing utilizing various metals melting waste slag to make according to claim 1 and preparation method thereof, is characterized in that promoting agent be main component is saltcake (Na
2sO
410H
2o) desuifurized or main component is the refining molybdenum waste residue of SODIUMNITRATE.
4. a kind of pelletizing utilizing various metals melting waste slag to make according to claim 1 and preparation method thereof, is characterized in that cement is one or more the mixed cement in silicate cement, slag cement, short-term strength cement, native polywater mud.
5. a kind of pelletizing utilizing various metals melting waste slag to make according to claim 1 and preparation method thereof, is characterized in that pelletizing can directly drop in sintering oven, blast furnace, FINEX stove and uses.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510638303.0A CN105274329A (en) | 2015-10-05 | 2015-10-05 | Pellet manufactured through multiple metal smelting waste and preparing method of pellet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510638303.0A CN105274329A (en) | 2015-10-05 | 2015-10-05 | Pellet manufactured through multiple metal smelting waste and preparing method of pellet |
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|---|---|
| CN105274329A true CN105274329A (en) | 2016-01-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510638303.0A Pending CN105274329A (en) | 2015-10-05 | 2015-10-05 | Pellet manufactured through multiple metal smelting waste and preparing method of pellet |
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|---|---|
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107488784A (en) * | 2017-09-06 | 2017-12-19 | 安徽工业大学 | A kind of blast furnace ironmaking superfluxed pellets and its production method |
| CN110434155A (en) * | 2019-08-16 | 2019-11-12 | 绍兴市环保科技服务中心 | A kind of co-sintering technique of organic polluted soil and saltcake |
| CN111363915A (en) * | 2020-04-08 | 2020-07-03 | 攀钢集团攀枝花钢钒有限公司 | Method for treating SDS (sodium dodecyl sulfate) desulfurization waste residue |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57100968A (en) * | 1980-12-16 | 1982-06-23 | Denki Kagaku Kogyo Kk | Manufacture of formed body using steel slag as bonding material |
| CN1710112A (en) * | 2005-06-10 | 2005-12-21 | 孔凡逸 | Direct iron making method for punching particle material using low-grade superfine ironic material |
| CN1720340A (en) * | 2002-12-02 | 2006-01-11 | 科学与工业研究会 | Cold briquetting and pelletisation |
-
2015
- 2015-10-05 CN CN201510638303.0A patent/CN105274329A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57100968A (en) * | 1980-12-16 | 1982-06-23 | Denki Kagaku Kogyo Kk | Manufacture of formed body using steel slag as bonding material |
| CN1720340A (en) * | 2002-12-02 | 2006-01-11 | 科学与工业研究会 | Cold briquetting and pelletisation |
| CN1710112A (en) * | 2005-06-10 | 2005-12-21 | 孔凡逸 | Direct iron making method for punching particle material using low-grade superfine ironic material |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107488784A (en) * | 2017-09-06 | 2017-12-19 | 安徽工业大学 | A kind of blast furnace ironmaking superfluxed pellets and its production method |
| CN107488784B (en) * | 2017-09-06 | 2019-07-26 | 安徽工业大学 | A kind of blast furnace ironmaking superfluxed pellets and its production method |
| CN110434155A (en) * | 2019-08-16 | 2019-11-12 | 绍兴市环保科技服务中心 | A kind of co-sintering technique of organic polluted soil and saltcake |
| CN111363915A (en) * | 2020-04-08 | 2020-07-03 | 攀钢集团攀枝花钢钒有限公司 | Method for treating SDS (sodium dodecyl sulfate) desulfurization waste residue |
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Application publication date: 20160127 |
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