CN106396446A - Method for producing micro powder by mixing granulated blast-furnace slags and submerged arc furnace water granulated slags - Google Patents
Method for producing micro powder by mixing granulated blast-furnace slags and submerged arc furnace water granulated slags Download PDFInfo
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- CN106396446A CN106396446A CN201610830072.8A CN201610830072A CN106396446A CN 106396446 A CN106396446 A CN 106396446A CN 201610830072 A CN201610830072 A CN 201610830072A CN 106396446 A CN106396446 A CN 106396446A
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B40/00—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
- C04B40/0028—Aspects relating to the mixing step of the mortar preparation
- C04B40/0039—Premixtures of ingredients
- C04B40/0042—Powdery mixtures
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B18/00—Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B18/04—Waste materials; Refuse
- C04B18/14—Waste materials; Refuse from metallurgical processes
- C04B18/141—Slags
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B18/00—Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B18/04—Waste materials; Refuse
- C04B18/14—Waste materials; Refuse from metallurgical processes
- C04B18/141—Slags
- C04B18/144—Slags from the production of specific metals other than iron or of specific alloys, e.g. ferrochrome slags
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B20/00—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
- C04B20/02—Treatment
- C04B20/026—Comminuting, e.g. by grinding or breaking; Defibrillating fibres other than asbestos
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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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Environmental & Geological Engineering (AREA)
- Civil Engineering (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention relates to a method for producing micro powder by mixing granulated blast-furnace slags and submerged arc furnace water granulated slags. The method comprises the following steps: (1) carrying out ingredient analysis; (2) carrying out a mixed blending mill experiment; (3) carrying out an industrial experiment; (4) grinding powder: enabling all slags to enter an intermediate bin through a mill-entering belt, carrying out mixed homogenization again in the intermediate bin, enabling the slags to respectively enter three mill-entering belts and then enter a mill, carrying out mixed grinding, obtaining final qualified mixed micro powder through a powder concentrator, a dust collector, an air conveying chute and a finished product bucket elevator, and enabling the mixed micro powder to enter a finished product cabin. According to the method, the granulated blast-furnace slags and the submerged arc furnace water granulated slags are jointly used for producing the micro powder, the comprehensive utilization of resources is realized, the pollution of metallurgy waste residue discharging is reduced, production cost is reduced, economic benefits are increased, and the 100 percent comprehensive utilization of the resources is realized.
Description
Technical field
The present invention relates to slag produces micropowder technology, more particularly to a kind of granulated blast-furnace slag is mixed with mineral hot furnace grain slag
The method producing micropowder.
Background technology
Silicon-manganese alloy slag is the solid slag producing during Smelting Simn In A, and color is in light green color, and hardness is bigger is wherein embedding
Cloth a certain amount of silicomangan granule, these solid slags carry out scientific and effective process, not only land occupation not in time, also can
Certain harm is caused to human health and environment.
Property according to silicon-manganese alloy slag can be processed to silicon-manganese alloy slag using two methods：Magnetic method and gravity treatment
Method；The silicon-manganese alloy slag producing during ferroalloy smelting is carried out separating by two methods further, separates the silicomanganese obtaining and closes
Gold grain recycles the smelting with silicomangan again, and another part waste residue is less than granulated blast-furnace slag, grindability because of activity
Difference, its utilization rate is far smaller than granulated blast-furnace slag, and still there is substantial amounts of silicon-manganese alloy slag in ferroalloy manufacturer not so far
Can process and be utilized.
How the silicon-manganese alloy slag after manganese will be selected, that is, mineral hot furnace grain slag, comprehensively utilized, it has also become domestic ferrum closes
A great problem faced by golden manufacturer.
Content of the invention
The invention provides a kind of method of granulated blast-furnace slag and mineral hot furnace grain slag mixture manufacturing micropowder, it solves technology
The technical scheme of problem is：
The method of granulated blast-furnace slag and mineral hot furnace grain slag mixture manufacturing micropowder is it is characterised in that comprise the following steps：
（1）Component analyses：Granulated blast-furnace slag and mineral hot furnace grain slag are carried out chemical composition analysis respectively, according to analysis result,
Respectively grade positioning is carried out to granulated blast-furnace slag and mineral hot furnace grain slag；
Described mineral hot furnace grain slag main chemical compositions are：
TFe：0.21%, SiO2:27%～34%；Al2O3：27%～30%, CaO：20.18%, MgO：6.29%, P：0.001%, S：
1.60%, MnO：8%～12%；
Described granulated blast-furnace slag main chemical compositions are：
TFe：0.21%, SiO2:30%～37%；Al2O3：14%～17%, CaO：35%～42%, MgO：7%～11%, TiO2：
0.2%～2.0%, S：0.2%～1.5%, MnO：0.2%～2.0%；
（2）Blending little mill test：According to Standard, first carry out two kinds of slag different proportion blendings little pulverizing mill test, and examine
Survey its technical performance index, according to result of the test, draw the optimal mixing proportion of two kinds of slags；
Preferably, described mixing proportion is 2%～8%.
（3）Industrial experiment：The ratio groped with little mill test, is carried out commerical test aborning and verifies again, to production
Slag powders technical specification is detected, predominantly detects production slag powders main chemical compositions, specific surface area, activity index situation,
In the range of GB technical requirements, find the optimal mixing proportion of production application；
Preferably, described pilot production determines that mix ratio is 2%～6%.
（4）Pulverizing：After optimal mixing proportion is found in commerical test, in conjunction with present situation, for ensureing the uniformity that blends it is ensured that
Produce slag powders uniform quality, granulated blast-furnace slag and mineral hot furnace grain slag are carried out being mixed into mill by a certain percentage, through entering to grind skin
Band enters intermediate bin, mixes homogenizing again in intermediate bin, is divided into three and enters to grind belt, carry out combined grinding subsequently into grinding machine,
Carry through powder concentrator, dust-precipitator, air conveyer flume, finished product bucket again, finally qualified admixed finepowder enters finished bin.
The invention has the advantages that：
Present invention process step is simple, and equipment needed thereby is few, will produce and through selecting remaining difficulty after manganese further after ferroalloy smelting
In the mineral hot furnace grain slag processing, it is provided commonly for the production of micropowder it is achieved that comprehensive utilization of resources with granulated blast-furnace slag, decreases
The pollution of metallurgical slag discharge, products obtained therefrom meets S95 level product technology in GB GB18046-2008 and requires, and reduces production
Cost, increased economic benefit, effectively achieves the harmless treatment of mineral hot furnace grain slag, is truly realized industrial residue and becomes useless
For treasured, resource 100% comprehensively utilizes.
Specific embodiment
With reference to specific embodiment, the invention will be further described, but the present invention is not limited to this；
The method of granulated blast-furnace slag and mineral hot furnace grain slag mixture manufacturing micropowder is it is characterised in that comprise the following steps：
（1）Component analyses：Granulated blast-furnace slag and mineral hot furnace grain slag are carried out chemical composition analysis respectively, according to analysis result,
Respectively grade positioning is carried out to granulated blast-furnace slag and mineral hot furnace grain slag；
Described mineral hot furnace grain slag main chemical compositions are：
TFe：0.21%, SiO2:27%～34%；Al2O3：27%～30%, CaO：20.18%, MgO：6.29%, P：0.001%, S：
1.60%, MnO：8%～12%；
Described granulated blast-furnace slag main chemical compositions are：
TFe：0.21%, SiO2:30%～37%；Al2O3：14%～17%, CaO：35%～42%, MgO：7%～11%, TiO2：
0.2%～2.0%, S：0.2%～1.5%, MnO：0.2%～2.0%.
（2）Blending little mill test：According to Standard, first carry out two kinds of slag different proportion blendings little pulverizing mill test,
And detect its technical performance index, according to result of the test, draw the optimal mixing proportion of two kinds of slags；Because of " mineral hot furnace grain slag " activity
Relatively low, when mixing " granulated blast-furnace slag " intergrinding and producing slag powders, it is certain unfavorable that slag powders activity index can be caused
Impact, according to the technical requirements to activity index for the S95 slag powders：7d >=75%, 28d >=95%.On this basis, select initially
" mineral hot furnace grain slag " incorporation 10%, is gradually reduced incorporation and carries out little mill test, until finding and can mixing in proportion, and energy
Ensure that slag powders 7d activity meets the mix ratio of S95 level technical requirements, according to little mill result of the test, have found 2%～8% admixture
Ratio is it is ensured that mixture manufacturing slag powders 7d activity index meets Standard；In the range of 2%～8% admixture, mix ratio
Number, depending on the height of " granulated blast-furnace slag " quality coefficient, when " granulated blast-furnace slag " quality coefficient is 1.85～1.9
When, mix ratio can in the range of select close to maximum incorporation 8%；When " granulated blast-furnace slag " quality coefficient 1.80～
When 1.85, mix ratio may be selected in 5% about, when " granulated blast-furnace slag " quality coefficient is 1.75～1.80, mix ratio
May be selected close to minimum incorporation 2%.
（3）Industrial experiment：The ratio groped with little mill test, is carried out commerical test aborning and verifies again, to production
Slag powders technical specification is detected, predominantly detects production slag powders main chemical compositions, specific surface area, activity index situation,
In the range of GB technical requirements, find the optimal mixing proportion of production application；Pilot production determines that optimal mix ratio is 2%
～6%.
（4）Pulverizing：After optimal mixing proportion is found in commerical test, in conjunction with present situation, for ensureing the uniformity that blends it is ensured that
Produce slag powders uniform quality, " granulated blast-furnace slag " and " mineral hot furnace grain slag " are carried out being mixed into mill by a certain percentage, through entering
Mill belt enters intermediate bin, mixes homogenizing again in intermediate bin, is divided into three and enters to grind belt, carry out mixed powder subsequently into grinding machine
Mill, then carry through powder concentrator, dust-precipitator, air conveyer flume, finished product bucket, finally qualified admixed finepowder enters finished bin.
In addition to the implementation, the present invention can also have other embodiment, all employing equivalents or equivalent transformation shape
The technical scheme becoming, all falls within the protection domain of application claims.
Claims (4)
1. granulated blast-furnace slag and the method for mineral hot furnace grain slag mixture manufacturing micropowder are it is characterised in that comprise the following steps：
（1）Component analyses：Granulated blast-furnace slag and silicon-manganese alloy slag are carried out chemical composition analysis respectively, according to analysis result,
Respectively grade positioning is carried out to granulated blast-furnace slag and silicon-manganese alloy slag；
（2）Blending little mill test：According to Standard, first carry out two kinds of slag different proportion blendings little pulverizing mill test, and examine
Survey its technical performance index, according to result of the test, draw the optimal mixing proportion of two kinds of slags；
（3）Industrial experiment：The ratio groped with little mill test, is carried out commerical test aborning and verifies again, to production slag
Powder technical specification is detected, predominantly detects production slag powders main chemical compositions, specific surface area, activity index situation, in state
In the range of mark technical requirements, find the optimal mixing proportion of production application；
（4）Pulverizing：After optimal mixing proportion is found in commerical test, in conjunction with present situation, for ensureing the uniformity blending it is ensured that producing
Slag powders uniform quality, granulated blast-furnace slag and mineral hot furnace grain slag is carried out being mixed into mill by a certain percentage, enters through entering to grind belt
Enter intermediate bin, mix homogenizing again in intermediate bin, be divided into three and enter to grind belt, carry out combined grinding subsequently into grinding machine, then warp
Powder concentrator, dust-precipitator, air conveyer flume, finished product bucket carry, and finally qualified admixed finepowder enters finished bin.
2. granulated blast-furnace slag as claimed in claim 1 and mineral hot furnace grain slag mixture manufacturing micropowder method it is characterised in that
Step（1）Described in mineral hot furnace grain slag main chemical compositions be：TFe：0.21%, SiO2:27%～34%；Al2O3：27%～
30%, CaO：20.18%, MgO：6.29%, P：0.001%, S：1.60%, MnO：8%～12%；Described granulated blast-furnace slag is mainly changed
Study and be divided into：TFe：0.21%, SiO2:30%～37%；Al2O3：14%～17%, CaO：35%～42%, MgO：7%～11%,
TiO2：0.2%～2.0%, S：0.2%～1.5%, MnO：0.2%～2.0%.
3. granulated blast-furnace slag as claimed in claim 1 and mineral hot furnace grain slag mixture manufacturing micropowder method it is characterised in that
Step（2）The optimal mixing proportion of middle test is 2%～8%.
4. granulated blast-furnace slag as claimed in claim 1 and mineral hot furnace grain slag mixture manufacturing micropowder method it is characterised in that
Step（3）The optimal mixing proportion of middle application is 2%～6%.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610830072.8A CN106396446A (en) | 2016-09-19 | 2016-09-19 | Method for producing micro powder by mixing granulated blast-furnace slags and submerged arc furnace water granulated slags |
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|---|---|---|---|
| CN201610830072.8A CN106396446A (en) | 2016-09-19 | 2016-09-19 | Method for producing micro powder by mixing granulated blast-furnace slags and submerged arc furnace water granulated slags |
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| CN106396446A true CN106396446A (en) | 2017-02-15 |
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| CN201610830072.8A Pending CN106396446A (en) | 2016-09-19 | 2016-09-19 | Method for producing micro powder by mixing granulated blast-furnace slags and submerged arc furnace water granulated slags |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107473611A (en) * | 2017-09-19 | 2017-12-15 | 山东东华水泥有限公司 | A kind of S105 levels miberal powder and preparation method thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102659327A (en) * | 2012-05-18 | 2012-09-12 | 贵州力邦超细微粉有限公司 | High-activity composite micro powder and production method and application thereof |
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2016
- 2016-09-19 CN CN201610830072.8A patent/CN106396446A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102659327A (en) * | 2012-05-18 | 2012-09-12 | 贵州力邦超细微粉有限公司 | High-activity composite micro powder and production method and application thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107473611A (en) * | 2017-09-19 | 2017-12-15 | 山东东华水泥有限公司 | A kind of S105 levels miberal powder and preparation method thereof |
| CN107473611B (en) * | 2017-09-19 | 2019-12-31 | 山东东华水泥有限公司 | S105-grade mineral powder |
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Application publication date: 20170215 |
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