CN1737168A - Agglomeration process of -200 mesh celestite concentrate - Google Patents
Agglomeration process of -200 mesh celestite concentrate Download PDFInfo
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- CN1737168A CN1737168A CN 200510021612 CN200510021612A CN1737168A CN 1737168 A CN1737168 A CN 1737168A CN 200510021612 CN200510021612 CN 200510021612 CN 200510021612 A CN200510021612 A CN 200510021612A CN 1737168 A CN1737168 A CN 1737168A
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- pellet
- celestite
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- concentrate
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Abstract
The invention relates the pulverulent material agglomerated technology, which is celestine agglomerated technology. The technological process of celestine finished ore agglomerated technology comprises the following steps: -200 mesh celestine finished ore and binding agent or addition agent - mixing ingredient homogeneously - preparing mother pellet - adding material and water - mother pellet growing - continuing rolling - compressing the pellet - drying and obtaining the celestine finished ore pellet. Because the invention adapts the method of pellet ore roll forming, the inner structure of the pellet is fine and close, and the materials, which hit against the pellet stick on the surface of the pellet to make the ball grow by layer. Merry-go-round agglomerated machine has the advantages of simple apparatus, light weight, automatic grading function and preparing the pelet epigranularly. The invention uses the addition agent to improve the incidence intensity of the pellet to 8.2 times per 0.5m.
Description
Technical field
The present invention relates to the powder material agglomeration process, specifically relate to lazurite 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 the agglomeration of several material body of only a few material.Roll-forming is to do to be processed with the pressure that produces between the round roller in specified shape mould hole on relative movement, the roll surface by two, makes pulverulent material be processed into the agglomerate of regular shape, and 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, and the mine is positioned at the Gobi desert of the northwestward, the Caidamu Basin, and height above sea level higher (2800～2830 meters) is dry, no surface water, and condition is very abominable.The principal feature of ore is: the blunt face of land of ore body, be suitable for strip mining transformation, and 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: the celestite ore of selecting for use is 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 celestite concentrate agglomeration process of the selected operation gained of Pyatyi is to make ball at balling disc, and technical process is: reinforced → celestite concentrate and binding agent/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, and additive is H and G; 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 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 two kinds of additives of H, G 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 agglomeration is 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, 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 celestite concentrate of the selected operation gained of Pyatyi is the process that raw material is processed into pelletizing, and described agglomeration is to make ball at balling disc, and technical process is: reinforced → celestite concentrate and binding agent/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, and additive is H and G; Making ball moisture content 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 0.5m
-1
Described additive G is: Sodium hexametaphosphate 99, and adding weight percentage is 0.5～1.0%; Described additive H is a calcium lignin sulphonate, and adding weight percentage is 0.8～1.2%.
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 G0.5%, additive H0.8%, and pelletizer is with 22r/min
-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 0.5.m
-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 G0.8%, additive H1.0%, and pelletizer is with 24r/min
-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 0.5.m
-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 G1.0%, additive H1.2%, and pelletizer is with 25r/min
-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 0.5.m
-1
Claims (2)
1, a kind of-200 mesh celestite concentrate agglomeration process, described agglomeration is 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, 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 celestite concentrate of the selected operation gained of Pyatyi is the process that raw material is processed into pelletizing, it is characterized in that: described agglomeration is to make ball at balling disc, and technical process is: celestite concentrate and binding agent/additive → add water be mixed → prepare mother bulb → add water 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, and additive is H and G; Making ball moisture content 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 0.5m-1.
2 ,-200 mesh celestite concentrate agglomeration process as claimed in claim 1, it is characterized in that: described additive G is: Sodium hexametaphosphate 99, adding weight percentage is 0.5～1.0%; Described additive H is a calcium lignin sulphonate, and adding weight percentage is 0.8～1.2%.
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 true CN1737168A (en) | 2006-02-22 |
| CN1322150C 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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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102776363A (en) * | 2012-08-21 | 2012-11-14 | 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 |
Family Cites Families (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 |
| BR0100348B1 (en) * | 2001-01-24 | 2012-03-20 | concentration and calcination process of zinc silicate minerals and concentrated zinc silicate product | |
| WO2002066688A1 (en) * | 2001-02-22 | 2002-08-29 | Nippon Steel Corporation | Method of granulation treatment of raw material for iron making and granulation treatment agent for iron making |
| CN1152968C (en) * | 2001-10-24 | 2004-06-09 | 中国科学院广州化学研究所 | Adhesive for nodulizing in non-ferrous metals and its preparing process |
| CN1276981C (en) * | 2004-02-09 | 2006-09-27 | 重庆钢铁(集团)有限责任公司 | Furnace protecting acid pellet and production technology thereof |
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- 2005-09-02 CN CNB200510021612XA patent/CN1322150C/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102776363A (en) * | 2012-08-21 | 2012-11-14 | 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 |
| 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 |
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| Publication number | Publication date |
|---|---|
| CN1322150C (en) | 2007-06-20 |
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Granted publication date: 20070620 Termination date: 20091009 |