CN102492393B - Method for reducing granular adsorbates on surface of steel slag non-metal abrasive - Google Patents
Method for reducing granular adsorbates on surface of steel slag non-metal abrasive Download PDFInfo
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- CN102492393B CN102492393B CN201110366006.7A CN201110366006A CN102492393B CN 102492393 B CN102492393 B CN 102492393B CN 201110366006 A CN201110366006 A CN 201110366006A CN 102492393 B CN102492393 B CN 102492393B
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Abstract
The invention provides a method for reducing granular adsorbates on the surface of a steel slag non-metal abrasive. According to the method, a steel slag non-metal abrasive is soaked by using water, and is subjected to persistent stirring washing for 5-10 minutes; after stopping the washing, a filtering treatment is performed to remove the water; then the steel slag non-metal abrasive is soaked again by using the water, and is subjected to persistent stirring washing for 5-10 minutes; the steel slag non-metal abrasive is subjected to water washing screening after carrying out the two water washing treatments to further remove the granular adsorbates on the surface of the steel slag non-metal abrasive; finally the resulting screening residue from water washing screening is dried. According to the present invention, the granular adsorbate content on the surface of the steel slag non-metal abrasive by the water washing screening method is reduced by 0.3-0.5% compared to the granular adsorbate content on the surface of the steel slag non-metal abrasive by the dry production, such that the dusts during the steel slag non-metal abrasive using process are substantially reduced, and the working environment is improved.
Description
Technical field
The present invention relates to steel surface and apply field of coating, be specifically related to a kind of method that reduces granular adsorbates on surface of steel slag non-metal abrasive, can be connected in series in the production line of producing slag non-metallic abrasive.
Background technology
Slag is applied to surface derusting as non-metallic abrasive has become national standard, in national standard, the specific conductivity of the surface particles adsorptive of slag, particle size range distribution, apparent density, Mohs' hardness, water content, water-leach liquor and Contents of Water-soluble Chloride have all been done to requirement.
The surface particles adsorptive of slag refers to the powdered granule that is adsorbed on slag nonmetallic surface.Generally refer to the granule materials of particle diameter < 0.2mm, according to the surface particles adsorptive content that requires of GB/T17850.11, answer≤0.5%.The content that reduces surface particles adsorptive can reduce the dust in use procedure, improves operating environment.
Common non-metallic abrasive structure is mainly vitreum, smooth surface, compact structure, therefore can adopt dry screen division technique in production process, and be aided with the object (as copper ore) that dust removal installation reaches the content of surface particles adsorptive in reduction non-metallic abrasive.But because slag surface and inside are microcosmic vesicular, easily cause subparticle inlay or be hidden in steel slag particle hole, by its particle adsorptive of the more difficult thorough removing of technique of conventional dry screen+dedusting.
Summary of the invention
The object of the invention is to overcome above-mentioned the deficiencies in the prior art, a kind of method that can reduce granular adsorbates on surface of steel slag non-metal abrasive is provided.
The present invention is by the following technical solutions:
A method that reduces granular adsorbates on surface of steel slag non-metal abrasive, comprises the steps:
1) slag non-metallic abrasive water soaked abrasive material and continue to stir flushing 5-10 minute, after stopping rinsing, water being filtered dry, be then again soaked in water and continue to stir flushing 5-10 minute;
2) by step 1) in slag non-metallic abrasive after twice water soaking rinses carry out washing screening, further remove granular adsorbates on surface of steel slag non-metal abrasive;
3) screenings after washing screening is dried.
Described slag non-metallic abrasive refers to that slag (preferably converter slag or electric furnace slag) is through the steel slag particle of Shape correction the certain particle size grading limit that obtains after dry screening.
Described converter slag refers to the slag that converter is produced, and described electric furnace slag refers to the slag that electric furnace is produced.
Preferably, the particle diameter of described slag non-metallic abrasive is 0.5～3mm.
Described surface particles adsorptive refers to the granule materials of particle diameter < 0.2mm.
Described washing screening refers to water continual rinsing slag non-metallic abrasive in screening process.It is 0.2mm that described washing screening is used the sieve diameter of screen cloth, and the hydraulic pressure of washing is 0.3～0.5MPa.
Described step 1) in, the water after twice flushing all enters in settling tank and processes, and treats that the water in described settling tank reaches clarification, and the water cycle in settling tank is returned for rinsing for the first time.
Described step 1) twice flushing in all carried out in trommel screen.
The invention has the beneficial effects as follows:
1. the granular adsorbates on surface of steel slag non-metal abrasive content of producing by washing sieve point-score is lower by 0.3～0.5% than dry production;
2. the airborne dust while greatly reducing the use of slag non-metallic abrasive, has improved operating environment.
3. reduce production costs, adopting WATER-WASHING METHOD to produce in whole production line does not need dust removal installation, has saved power consumption.
4. washing screening has been saved in production process and has been shut down clear net work, has saved artificial.
5. the non-abrasive material finished product of slag obtaining meets GB/T17850.11 standard, reaches the requirement of surface particles adsorptive content≤0.5%.
Accompanying drawing explanation
Fig. 1 is process flow sheet of the present invention.
Embodiment
As shown in Figure 1, slag non-metallic abrasive by dry production in dynamic container (as trommel screen) through the immersion of water and continue to stir and flushing, material is fully contacted with current, rinse after 5-10 minute, rinse for the second time again and stir, the molecule that is embedded in slag surface hole defect is come off.Flushing process is with identical for the first time for the second time, and flush time is 5-10 minute.Slag non-metallic abrasive after twice flushing, by washing screening, (it is 0.2mm that washing screening is used screen cloth again, the hydraulic pressure of washing is 0.3-0.5MPa), by the flushing of hydraulic pressure, make to be less than 0.2mm material and can pass through smoothly 0.2mm compass screen surface, the phenomenon that reduces sieve aperture network blocking occurs, thereby makes finished product meet GB/T17850.11 standard, reaches the requirement of surface particles adsorptive content≤0.5%.Finally screenings is dried by drying equipment (can adopt conventional furnace drying method, for example, 80-120 ℃ of oven dry), reach in GB/T17850.11 the requirement of slag non-metallic abrasive water content (≤0.2%).Water after flushing recycles by settling tank.
The non-metallic abrasive that adopts aforesaid method to prepare 5 kinds of slags and copper ore is rinsed, and through surface particles adsorptive method, detects, and its surface adsorption thing content is as follows:
The comparison of table 1 surface particles adsorptive content
As can be seen from the above table, the slag non-metallic abrasive in embodiment 1-5 on average declines 0.3～0.5 percentage point by its surface particles adsorptive content of the inventive method, and the copper ore non-metallic abrasive of comparative example 1-2 has only on average declined 0.03%.
The comparison of screen cloth clearance time:
Comparative example 3, for adopting dry screening to remove its surface adsorption composition granule the slag non-metallic abrasive by dry production, is compared with aforesaid method provided by the present invention, and both screen cloth clearance times are as follows:
Table 2 screen cloth clearance time
| Sequence number | The mode of production | Screen cloth cleaning cycle | The cleaning screen cloth time |
| Embodiment 1 | The inventive method | 2～3 days | 0.5～1 hour |
| Comparative example 3 | Dry production method | 4～6 hours | 0.5～1 hour |
Claims (1)
1. a method that reduces granular adsorbates on surface of steel slag non-metal abrasive, comprises the steps:
1) slag non-metallic abrasive water soaked abrasive material and continue to stir flushing 5-10 minute, after stopping rinsing, water being filtered dry, being then again soaked in water and continuing to stir and rinse 5-10 minute, wherein, twice flushing all carried out in trommel screen;
2) the slag non-metallic abrasive after twice water rinses in step 1) is carried out to washing screening, further remove granular adsorbates on surface of steel slag non-metal abrasive, it is 0.2mm that described washing screening is used the sieve diameter of screen cloth, and the hydraulic pressure of washing is 0.3～0.5MPa;
3) screenings after washing screening is dried;
Described slag non-metallic abrasive refers to that slag is through Shape correction the steel slag particle that obtains after dry screening; Its particle diameter is 0.5～3mm;
Described slag is selected from converter slag or electric furnace slag;
In described step 1), the water after twice flushing all enters in settling tank and processes, and treats that the water in described settling tank reaches limpid, and the water cycle in settling tank is returned for rinsing for the first time.
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| CN201110366006.7A CN102492393B (en) | 2011-11-17 | 2011-11-17 | Method for reducing granular adsorbates on surface of steel slag non-metal abrasive |
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| CN201110366006.7A CN102492393B (en) | 2011-11-17 | 2011-11-17 | Method for reducing granular adsorbates on surface of steel slag non-metal abrasive |
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| CN102492393B true CN102492393B (en) | 2014-01-22 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1394229A (en) * | 2000-10-02 | 2003-01-29 | 三井金属鉱业株式会社 | Cerium based abrasive material and method for producing cerium based abrasive material |
| KR20070105017A (en) * | 2006-04-24 | 2007-10-30 | 남용호 | The method of abrasives manufacture using molten steel slag and the abrasives manufactured thereof |
| CN101149322A (en) * | 2007-10-30 | 2008-03-26 | 中冶宝钢技术服务有限公司 | Method for determining steel slag derusting abrasive material ash content |
| CN101298551A (en) * | 2008-06-13 | 2008-11-05 | 中冶宝钢技术服务有限公司 | Preparation of steel slag derusting abrasive medium |
| WO2011027926A1 (en) * | 2009-09-07 | 2011-03-10 | Huh Jung Do | Temperature-adjusted and modified recycled ascon composition for reusing 100% of waste ascon for road pavement, and method for manufacturing same |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8695903B2 (en) * | 2006-12-21 | 2014-04-15 | Westwood Lands, Inc. | Processing of steel making slag |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1394229A (en) * | 2000-10-02 | 2003-01-29 | 三井金属鉱业株式会社 | Cerium based abrasive material and method for producing cerium based abrasive material |
| KR20070105017A (en) * | 2006-04-24 | 2007-10-30 | 남용호 | The method of abrasives manufacture using molten steel slag and the abrasives manufactured thereof |
| CN101149322A (en) * | 2007-10-30 | 2008-03-26 | 中冶宝钢技术服务有限公司 | Method for determining steel slag derusting abrasive material ash content |
| CN101298551A (en) * | 2008-06-13 | 2008-11-05 | 中冶宝钢技术服务有限公司 | Preparation of steel slag derusting abrasive medium |
| WO2011027926A1 (en) * | 2009-09-07 | 2011-03-10 | Huh Jung Do | Temperature-adjusted and modified recycled ascon composition for reusing 100% of waste ascon for road pavement, and method for manufacturing same |
Non-Patent Citations (2)
| Title |
|---|
| 易承波等.钢渣作船体喷砂除锈磨料的可行性研究.《表面技术》.2010,第39卷(第4期), |
| 钢渣作船体喷砂除锈磨料的可行性研究;易承波等;《表面技术》;20100810;第39卷(第4期);91-93 * |
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