CN1322150C - Agglomeration process of -200 mesh celestite concentrate - Google Patents
Agglomeration process of -200 mesh celestite concentrate Download PDFInfo
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- CN1322150C CN1322150C CNB200510021612XA CN200510021612A CN1322150C CN 1322150 C CN1322150 C CN 1322150C CN B200510021612X A CNB200510021612X A CN B200510021612XA CN 200510021612 A CN200510021612 A CN 200510021612A CN 1322150 C CN1322150 C CN 1322150C
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- celestite
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Abstract
The present invention relates to an agglomeration process of a powder material, more specifically to an agglomeration process of a celestite floatation concentrate. The agglomeration process of a celestite floatation concentrate comprises the following procedures: proportioning and uniformly mixing less than 200 meshes of celestite concentrates, and an adhesive/ an additive so as to prepare a seed pellet; enabling the seed pellet to grow up by adding water and materials; continuing rolling the seed pellet to obtain a raw pellet; compacting and drying the raw pellet so as to prepare a celestite concentrate pellet; the present invention has the advantages that because of the adoption of an agglomeration method of adopting a circular disc for rolling and shaping, the materials are rolled in pelletizing equipment, so that the inner structure of the raw pellet can be densified, and materials colliding with the raw pellet can adhere to the surface of the raw pellet, can be displaced and can form compact accumulation on the surface of the raw pellet growing up in a layered form; the disc pelletizer equipment has the advantages of simplicity and light weight, and has the function of automatic grading, and the prepared raw pellet has the advantage of uniform granularity; the present invention enables the drop strength of the generated pellet to reach 8.2 times/0.5m<-1> by adopting the additive.
Description
Technical field
The present invention relates to the powder material agglomeration process, specifically relate to reddish black flotation concentrate agglomeration process.
Background technology
Industrial powder material agglomeration method commonly used mainly contains extrusion molding, to three kinds of roll-in group and rolling moulding.Extrusion molding is the acting in conjunction that discharge gate is shunk in the thrust that produces through material during by the screw-blade convey materials and taper, makes material fine and close and extrude from discharge gate with cylindric, thereby reaches the purpose of agglomeration.Though extrusion molding technology is simple, have that production efficiency is low, moisture requirement is strict, shortcomings such as adaptability to raw material difference, so this method is used only obtaining in several powder material agglomeration of only a few.Roll-forming is to make to be processed with on relative movement, the roll surface pressure that produces between the round roller in specified shape mould hole by two, make powder dress material be processed into the agglomerate of regular shape, the shape of agglomerate is different according to circle roller roll surface patrix hole shape difference, because lazurite flotation concentrate fine size, particle surface hydrophobicity are strong, water migration speed is slow, add wet flotation concentrate and have stronger viscosity, material sticks on the screw-blade easily in the extrusion molding process, be difficult to along with the rotation of screw rod is pushed ahead, thereby the cylindric agglomerate of difficult formation.
Strong wind mountain, Qinghai Province celestite ore belongs to the ultra-large type sedimentary deposit, the mine is positioned at the Gobi desert of the northwestward, the Caidamu Basin, height above sea level higher (2800～2830 meters), dry, no surface water, condition is very abominable, the principal feature of ore is: the blunt face of land of ore body, be suitable for strip mining transformation, the celestite ore grade is lower, SrSO
4Content only about 30%, needing could be as the raw materials for production of carbon reduction technology to upgrade through preconcentration; For celestite ore through broken process, rod milling operation, flotation operation, enrichment process, one section desliming operation and two sections desliming operations; The rough floatation operation, sweep the flotation operation, sweep the cleaner flotation operation, the selected operation of one-level, the selected operation of secondary, three grades of selected operations, the selected operation of level Four, the fine size of the selected operation gained of Pyatyi, tough this material of lazurite flotation concentrate stick to the pair roller surface easily in to the roll-in process, cause demoulding difficulty, therefore above-mentioned two kinds of methods all are not suitable for the agglomeration of lazurite flotation concentrate.
Summary of the invention
The technical problem to be solved in the present invention is to overcome the deficiency that prior art exists, the technology that provides a kind of method that adopts the rolling moulding on balling disc to carry out-200 mesh celestite flotation concentrate agglomeration.
The object of the invention is achieved by following technical proposals: described-200 mesh celestite concentrates are to select for use celestite ore through broken process, rod milling operation, flotation operation, enrichment process, one section desliming operation and two sections desliming operations; The rough floatation operation is swept the flotation operation, sweeps the cleaner flotation operation, the selected operation of one-level, the selected operation of secondary, three grades of selected operations, the selected operation of level Four, the celestite concentrate of the selected operation gained of Pyatyi; Described agglomeration process is to be that raw material is processed at balling disc and made ball with above-mentioned celestite concentrate, and technical process is: reinforced → celestite concentrate and additive → batching be mixed → prepare mother bulb → add water to feed in raw material → mother bulb grow up → continue rolling → green-ball tight → drying makes the celestite concentrate pelletizing; The described reinforced moisture content of selecting for use is that 6.5～7.5%-200 mesh celestite concentrates add in the balling disc, adds additive Sodium hexametaphosphate 99 and additive calcium lignin sulphonate; Making ball moisture content is 9.2～9.5%; Making the ball time is 18～20min; The granulating disc disk tilt angle is 45 °; The pelletizing particle diameter of making is 10～12mm; The pelletizing dropping strength of making is 4.6～4.7 times (0.5m)
-1
The present invention has following beneficial effect compared with prior art: because the present invention adopts the method for disk rolling moulding to carry out agglomeration, material rolls in balling equipment and makes the densification of green-ball internal structure and make the material that bumps with green-ball can stick to the green-ball surface, and generation displacement, form accumulation closely on the green-ball surface, green-ball is grown up with the stratiform form.Balling disc equipment is simple, and is in light weight, has automatic fractionated function, the green-ball epigranular of preparation.The present invention has selected additive Sodium hexametaphosphate 99 and additive calcium lignin sulphonate for use, has improved the dropping strength that generates pelletizing and can reach (0.5m) 8.2 times
-1
Embodiment
Below in conjunction with embodiment the present invention is further described.
The present invention-200 mesh celestite concentrate agglomeration process is to make ball at balling disc, and described-200 mesh celestite concentrates are to select for use celestite ore through broken process, rod milling operation, flotation operation, enrichment process, one section desliming operation and two sections desliming operations; The rough floatation operation is swept the flotation operation, and stone is swept the cleaner flotation operation, the selected operation of one-level, the selected operation of secondary, three grades of selected operations, the selected operation of level Four, the celestite concentrate of the selected operation gained of Pyatyi; Described agglomeration process is, and to be raw material with above-mentioned celestite concentrate be processed into the process of pelletizing at balling disc, and technical process is: celestite concentrate and additive → add water mixing → preparation mother bulb → add water is reinforced → mother bulb grow up → continue rolling → green-ball tight → drying makes the celestite concentrate pelletizing; The described reinforced moisture content of selecting for use is that 6.5～7.5%-200 mesh celestite concentrates add in the balling disc, adds additive Sodium hexametaphosphate 99 and additive calcium lignin sulphonate; Making ball moisture is 9.2～9.5%; Making the ball time is 18～20min; The balling disc disk tilt angle is 45 °; The pelletizing particle diameter of making is 10～12mm; The pelletizing dropping strength of making is 4.6～4.7 times (0.5m)
-1
It is 0.5～1.0% that described additive Sodium hexametaphosphate 99 adds weight percentage; It is 0.8～1.2% that described additive calcium lignin sulphonate adds weight percentage.
Embodiment 1.
Get-200 orders, moisture content and be 6.5% lazurite flotation concentrate material 100kg, placing diameter is that 1000mm, inclination angle are in 45 ° the balling disc, to add water 9.2%, adds additive Sodium hexametaphosphate 99 0.5%, additive calcium lignin sulphonate 0.8%, pelletizer is with 22rmin
-1The rotation mother bulb generates, and adds water then continuously, and is reinforced, makes mother bulb grow up into the green-ball that particle diameter is 10mm in 18min, continues rolling 2min, makes green-ball further tight.Draw off green-ball in pelletizer, measuring shatter strength of green pellet is 7.4 times (0.5m)
-1
Embodiment 2.
Get-200 orders, moisture content and be 7% lazurite flotation concentrate material 100kg, placing diameter is that 1000mm, inclination angle are in 45 ° the balling disc, to add water 9.35%, adds additive Sodium hexametaphosphate 99 0.8%, additive calcium lignin sulphonate 1.0%, pelletizer is with 24rmin
-1The rotation mother bulb generates, and adds water then continuously, and is reinforced, makes mother bulb grow up into the green-ball that particle diameter is 11mm in 19min, continues rolling 2min, makes green-ball further tight.Draw off green-ball in pelletizer, measuring shatter strength of green pellet is 7.8 times (0.5m)
-1
Embodiment 3.
Get-200 orders, moisture content and be 7.5% lazurite flotation concentrate material 100kg, placing diameter is that 1000mm, inclination angle are in 45 ° the balling disc, to add water 9.5%, adds additive Sodium hexametaphosphate 99 1.0%, additive calcium lignin sulphonate 1.2%, pelletizer is with 25rmin
-1The rotation mother bulb generates, and adds water then continuously, and is reinforced, makes mother bulb grow up into the green-ball that particle diameter is 12mm in 20min, continues rolling 2min, makes green-ball further tight.Draw off green-ball in pelletizer, measuring shatter strength of green pellet is 8.2 times (0.5m)
-1
Claims (2)
1, a kind of-200 mesh celestite concentrate agglomeration process, described-200 mesh celestite concentrates are to select for use celestite ore through broken process, rod milling operation, flotation operation, enrichment process, one section desliming operation and two sections desliming operations; The rough floatation operation is swept the flotation operation, and stone is swept the cleaner flotation operation, the selected operation of one-level, the selected operation of secondary, three grades of selected operations, the selected operation of level Four, the celestite concentrate of the selected operation gained of Pyatyi; It is characterized in that: described agglomeration process is, and to be raw material with above-mentioned celestite concentrate be processed into the process of pelletizing at balling disc, and technical process is: celestite concentrate and additive → add water mixing → preparation mother bulb → add water is reinforced → mother bulb grow up → continue rolling → green-ball tight → drying makes the celestite concentrate pelletizing; The described reinforced moisture content of selecting for use is that 6.5～7.5%-200 mesh celestite concentrates add in the balling disc, adds additive Sodium hexametaphosphate 99 and additive calcium lignin sulphonate; Making ball moisture is 9.2～9.5%; Making the ball time is 18～20min; The balling disc disk tilt angle is 45 °; The pelletizing particle diameter of making is 10～12mm; The pelletizing dropping strength of making is 4.6～4.7 times (0.5m)
-1
2 ,-200 mesh celestite concentrate agglomeration process as claimed in claim 1 is characterized in that: it is 0.5～1.0% that described additive Sodium hexametaphosphate 99 adds weight percentage; It is 0.8～1.2% that described additive calcium lignin sulphonate adds weight percentage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200510021612XA CN1322150C (en) | 2005-09-02 | 2005-09-02 | Agglomeration process of -200 mesh celestite concentrate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200510021612XA CN1322150C (en) | 2005-09-02 | 2005-09-02 | Agglomeration process of -200 mesh celestite concentrate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1737168A CN1737168A (en) | 2006-02-22 |
| CN1322150C true CN1322150C (en) | 2007-06-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB200510021612XA Expired - Fee Related CN1322150C (en) | 2005-09-02 | 2005-09-02 | Agglomeration process of -200 mesh celestite concentrate |
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| CN (1) | CN1322150C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102776363B (en) * | 2012-08-21 | 2014-06-18 | 中国科学院青海盐湖研究所 | Process for balling by mixing 200 meshes of celestite mineral powders and reduction coals |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1265169A1 (en) * | 1985-01-08 | 1986-10-23 | Государственный Всесоюзный Институт По Проектированию И Научно-Исследовательским Работам | Raw mixture for producing portland cement clinker |
| CN1342778A (en) * | 2001-10-24 | 2002-04-03 | 中国科学院广州化学研究所 | Adhesive for nodulizing in non-ferrous metals and its preparing process |
| CN1457369A (en) * | 2001-02-22 | 2003-11-19 | 新日本制铁株式会社 | Method of granulation treatment of raw material for iron making and granulation treatment agent for iron making |
| CN1488004A (en) * | 2001-01-24 | 2004-04-07 | 米内拉金属公司 | Improved beneficiation process for concentration/calcination of zinc silicate ores and minerals |
| CN1557976A (en) * | 2004-02-09 | 2004-12-29 | 重庆钢铁(集团)有限责任公司 | Furnace protecting acid pellet and production technology thereof |
-
2005
- 2005-09-02 CN CNB200510021612XA patent/CN1322150C/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1265169A1 (en) * | 1985-01-08 | 1986-10-23 | Государственный Всесоюзный Институт По Проектированию И Научно-Исследовательским Работам | Raw mixture for producing portland cement clinker |
| CN1488004A (en) * | 2001-01-24 | 2004-04-07 | 米内拉金属公司 | Improved beneficiation process for concentration/calcination of zinc silicate ores and minerals |
| CN1457369A (en) * | 2001-02-22 | 2003-11-19 | 新日本制铁株式会社 | Method of granulation treatment of raw material for iron making and granulation treatment agent for iron making |
| CN1342778A (en) * | 2001-10-24 | 2002-04-03 | 中国科学院广州化学研究所 | Adhesive for nodulizing in non-ferrous metals and its preparing process |
| CN1557976A (en) * | 2004-02-09 | 2004-12-29 | 重庆钢铁(集团)有限责任公司 | Furnace protecting acid pellet and production technology thereof |
Non-Patent Citations (3)
| Title |
|---|
| 云南兰坪天石矿重选试验研究 邰文全，吴沛然等，有色金属，第2期 2004 * |
| 青海省天青石矿的选矿工艺设计 陈滨，工程设计建设，第35卷第3期 2003 * |
| 青海省天青石矿的选矿工艺设计 陈滨，工程设计建设，第35卷第3期 2003;云南兰坪天石矿重选试验研究 邰文全，吴沛然等，有色金属，第2期 2004 * |
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| CN1737168A (en) | 2006-02-22 |
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