CN105709918A - Production process of high-concentration floating separation of phosphorite - Google Patents
Production process of high-concentration floating separation of phosphorite Download PDFInfo
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- CN105709918A CN105709918A CN201511000684.6A CN201511000684A CN105709918A CN 105709918 A CN105709918 A CN 105709918A CN 201511000684 A CN201511000684 A CN 201511000684A CN 105709918 A CN105709918 A CN 105709918A
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- ore
- ball mill
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
- B03B7/00—Combinations of wet processes or apparatus with other processes or apparatus, e.g. for dressing ores or garbage
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
- B03B1/00—Conditioning for facilitating separation by altering physical properties of the matter to be treated
Abstract
The invention relates to a production process of the high-concentration floating separation of phosphorite. The production process comprises the steps that the width of an ore discharge opening of a jaw crusher is set to 80 mm, the width of an ore discharge opening of a cone crusher is set to 15 mm, a vibrating screen is a circular screen of which a mesh is (13 to 15)*(13 to 15) mm, ores in a filler bin are supplied to a ball mill by a disk feeder, the frequency of the disk feeder is regulated by a central control room so as to control the ore feeding speed, so that the ore feeding speed of the second layer of ores is stabilized at 60 t/h, the water supply amount of the ore feeding end of the ball mill is stabilized at 14 m<3>, the water supply amount of the ore discharging end of the ball mill is stabilized at 95 m<3>, ore pulp generated by the ball mill overflows through spiral classification, and qualified ore pulp is graded by a swirler. The production process has the advantages that heavy crushing and light grinding are used as criteria, the size of the ore discharge openings of the jaw crusher and the cone crusher is reduced, and the mesh of the vibrating screen (the circular screen of 15*15 mm) is replaced, so that the powder ore granularity is reduced, and the ore grinding load of the ball mill is reduced. A crushing system is adjusted, so that the feeding granularity of the ball mill is reduced, the ore feeding speed is increased from 45 t/h to 60 t/h, and the working efficiency of the ball mill is improved by 33.33%.
Description
Technical field
The invention belongs to technical field of agricultural fertilizers, be specifically related to a kind of phosphorus ore high concentration floating separation production technology.
Background technology
Present stage flotation of phosphate rock (single reverse flotation) produces, technological process be generally one thick two sweep, one thick one single-minded sweep, a thick essence two is swept.Ore is after jaw crusher coarse crushing (80-100mm), it is delivered to by belt conveyor that circular cone is broken carries out medium crushing (28-35mm), in broken Ore be delivered to vibrosieve then through belt conveyor and carry out sieving (16 × 24mm square hole screen), undersized product (-15mm) is by Belt Conveying to filler bin, on sieve, product (+15mm) is by Belt Conveying to fine crusher (15-28mm) in small, broken bits, Ore after in small, broken bits with in broken after Ore together with enter vibrosieve, closed cycle produces, and qualified fine ore (-15mm) enters filler bin.
The Ore of filler bin to ball mill feed by disk feeder, is thrown the size of ore deposit amount, and is controlled to throw ore deposit amount by the frequency of Central Control Room adjustment disk feeder by belt conveyer scale record.Throwing ore deposit, two layers of ore deposit amount is stable when 45t/h, stablizes ore feeding end of ball mill confluent 12m3With mine-discharging terminal confluent 104m3, the ore pulp of ball mill output is overflowed by screw classifying, then is gone out qualified ore pulp by cyclone classification: concentration 28-30%, fineness >=86%(-200 order), ore pulp amount 132.4m3/ h.Ore pulp is delivered to flotation workshop agitator by pipeline.Agitator adds sulphuric acid (concentration 98%) 0.2-0.4m3/ h, phosphoric acid (5.0%) 0.1-0.2m3/ h and anti-collecting agent (7.0%) 0.6m3/ h enters flotation device after stirring, and namely two layers of auspicious ore deposit of fourth ore inverse flotation passes through reverse flotation, and after flotation time must reach 72.52min, concentrate index could meet production requirement.Reverse floatation process control indexes: flotation cell pH value 4.6-4.9, concentrate P2O5>=28.0%, MgO≤1.8%, mine tailing P2O5≤ 2.5%.The concentrate of reverse flotation output be delivered to concentrator carry out concentration stand-by, mine tailing is delivered to Tailings Dam by tailings pump.
Summary of the invention
It is an object of the invention to be in that to provide a kind of phosphorus ore high concentration floating separation production technology, when meeting Ore degree of dissociation, heavily broken light mill, reduce ball mill material size, improve pulp density (qualified pulp density >=35.0%), strengthen and throw ore deposit amount, the work efficiency of ball mill and flotation device can be effectively improved, effective flotation time of ore pulp can be met again, and unit consumption of medicine can be saved, finally reduce beneficiation cost.
Production technology of the present invention includes: including arranging jaw crusher gape width is 80mm, gyratory crusher gape width 15mm, Vibration Screen mesh is 13-15 × 13-15mm round-hole mesh, the Ore of filler bin passes through disk feeder to ball mill feed, the frequency being regulated disk feeder by Central Control Room controls to throw ore deposit amount, make throwing ore deposit, two layers of ore deposit amount stable at 60t/h, stablize ore feeding end of ball mill confluent 14m3With mine-discharging terminal confluent 95m3, the ore pulp of ball mill output is overflowed by screw classifying, then is gone out qualified ore pulp by cyclone classification: concentration 35.0%, fineness 200 order >=80%, ore pulp amount 133.7m3/h。
Beneficial effect
Gently grind as criterion with heavily broken, by turning the gape size of jaw crusher, gyratory crusher down, change vibrating screen mesh (15 × 15mm round-hole mesh), reduce fine ore granularity, and then alleviate ball mill ore grinding load.
By adjusting crushing system, reducing ball mill material size, Ore is thrown ore deposit amount and is brought up to 60t/h by 45t/h, and ball mill work efficiency improves 33.33%, is calculated as follows:
(60t/h-45t/h)/45t/h × 100%=33.33%
The ore pulp of milling system output: concentration 35.0%, fineness >=80%(-200 order, degree of dissociation meets production requirement), ore pulp amount 133.7m3/ h, enter floatation system, flotation time is 71.83min, this with throw ore deposit amount 45t/h, reverse flotation concentration be 28.0% flotation time 72.52min basically identical, concentrate through reverse flotation index also meets production requirement.
If when not changing throwing ore deposit amount, only improving reverse flotation concentration, then can improve flotation device work efficiency 32.06%, be calculated as follows:
Throwing ore deposit amount 45t/h, reverse flotation concentration 28.0%, flotation time is 72.52min:
T1=60/(pulp volume/flotation cell volume)=60/(132.4/160)=72.52min
Throwing ore deposit amount 45t/h, reverse flotation concentration 35.0%, flotation time is 95.77min:
T2=60/(pulp volume/flotation cell volume)=60/(100.24/160)=95.77min
(95.77-72.52)/72.52 × 100%=32.06%
Properly increasing pulp density, when dosage is constant, the drug concentration in ore pulp increases with pulp density and increases.Pulp density is big, and drug concentration increases, and improves the collecting effect of medicament and ore pulp, it is possible to save unit consumption of medicine.
Properly increase pulp density, the productivity ratio of flotation device can be improved, pulp density increases, volume and productivity ratio such as flotation device are constant, then the ore pulp time of staying in flotation device extends relatively, are conducive to improving the response rate, otherwise, if flotation time is constant, then ore pulp is denseer, and the productivity ratio of flotation device is just bigger.
Detailed description of the invention
In early October, 2015, in the Xin Yangfeng of Jingmen, the phosphorus ammonium ore dressing of phosphate fertilizer industry company limited is by adjusting crushing system, reduce ball mill mill feed size, improve reverse flotation pulp density >=35.0%, when ensureing Ore degree of dissociation, when improving concentrating table, can effectively improve the work efficiency of ball mill and flotation device, effective flotation time T of ore pulp can be met again, and unit consumption of medicine can be saved, finally reduce beneficiation cost.
Reverse floatation process indicator-specific statistics table
End on October 15th, 2015, reverse flotation is by improving pulp density, ore pulp is dense/and fineness is stable at 35.83%/80.90%(-200 order), accumulative unit-hour output is increased to 62t/h, ton concentrate power consumption is down to 52.09Kw/h, the ton anti-unit consumption of catching of concentrate is down to 1.79Kg/t, and concentrate production cost is down to 371.98 yuan/ton.Ball mill work efficiency improves 37.78%, and flotation device work efficiency improves 36.12%.Power consumption saves 12.91Kw/h, and 0.78Kg/t saved by medicament, and Concentrate cost saves 24.22 yuan/ton.
The pulp density mutual restricting relation to the every factor of flotation, pulp density is excessive also brings along adverse effect:
1, the aeration quantity of flotation device changes with pulp density change, and ore pulp is crossed conference and caused that flotation device inflation is not smooth.
2, general ore pulp is relatively big, and the response rate is higher, but concentrate quality is poor.Ore pulp overrich so that flotation device working condition degenerates, can make floatation indicators decline.
Claims (1)
1. a phosphorus ore high concentration floating separation production technology, it is characterized in that production technology includes arranging jaw crusher gape width is 80mm, gyratory crusher gape width 15mm, Vibration Screen mesh is 13-15 × 13-15mm round-hole mesh, the Ore of filler bin passes through disk feeder to ball mill feed, the frequency being regulated disk feeder by Central Control Room controls to throw ore deposit amount, make throwing ore deposit, two layers of ore deposit amount stable at 60t/h, stablize ore feeding end of ball mill confluent 14m3With mine-discharging terminal confluent 95m3, the ore pulp of ball mill output is overflowed by screw classifying, then is gone out qualified ore pulp by cyclone classification.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511000684.6A CN105709918A (en) | 2015-12-29 | 2015-12-29 | Production process of high-concentration floating separation of phosphorite |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511000684.6A CN105709918A (en) | 2015-12-29 | 2015-12-29 | Production process of high-concentration floating separation of phosphorite |
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| Publication Number | Publication Date |
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| CN105709918A true CN105709918A (en) | 2016-06-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201511000684.6A Pending CN105709918A (en) | 2015-12-29 | 2015-12-29 | Production process of high-concentration floating separation of phosphorite |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107262254A (en) * | 2017-06-16 | 2017-10-20 | 贵州开磷集团股份有限公司 | A kind of rock phosphate in powder closed cycle breaking method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101116841A (en) * | 2006-07-31 | 2008-02-06 | 湖北宜昌林森实业有限公司 | Novel rhombohedral iron ore beneficiation technics |
| CN102205273A (en) * | 2011-05-18 | 2011-10-05 | 安徽金日盛矿业有限责任公司 | Beneficiation process of low-grade magnetite and specularite mixed ore |
| CN102626669A (en) * | 2012-04-10 | 2012-08-08 | 会理县马鞍坪矿山废石综合利用有限责任公司 | System and method for comprehensive utilization of copper mine chats |
| CN203033769U (en) * | 2013-01-15 | 2013-07-03 | 湖北六国化工股份有限公司 | Phosphate-pulp producing and breaking system |
| CN103962214A (en) * | 2014-06-03 | 2014-08-06 | 中冶沈勘秦皇岛工程技术有限公司 | Combined beneficiation method and combined beneficiation system for comprehensive recovery of associated iron-phosphate minerals |
| CN104261361A (en) * | 2014-09-11 | 2015-01-07 | 云南红富化肥有限公司 | Washing and direct flotation method of low-grade refractory argillaceous phosphorite |
-
2015
- 2015-12-29 CN CN201511000684.6A patent/CN105709918A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101116841A (en) * | 2006-07-31 | 2008-02-06 | 湖北宜昌林森实业有限公司 | Novel rhombohedral iron ore beneficiation technics |
| CN102205273A (en) * | 2011-05-18 | 2011-10-05 | 安徽金日盛矿业有限责任公司 | Beneficiation process of low-grade magnetite and specularite mixed ore |
| CN102626669A (en) * | 2012-04-10 | 2012-08-08 | 会理县马鞍坪矿山废石综合利用有限责任公司 | System and method for comprehensive utilization of copper mine chats |
| CN203033769U (en) * | 2013-01-15 | 2013-07-03 | 湖北六国化工股份有限公司 | Phosphate-pulp producing and breaking system |
| CN103962214A (en) * | 2014-06-03 | 2014-08-06 | 中冶沈勘秦皇岛工程技术有限公司 | Combined beneficiation method and combined beneficiation system for comprehensive recovery of associated iron-phosphate minerals |
| CN104261361A (en) * | 2014-09-11 | 2015-01-07 | 云南红富化肥有限公司 | Washing and direct flotation method of low-grade refractory argillaceous phosphorite |
Non-Patent Citations (1)
| Title |
|---|
| 杨秉华: "磷复肥厂磷矿破碎系统的改造实践", 《硫磷设计与粉体工程》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107262254A (en) * | 2017-06-16 | 2017-10-20 | 贵州开磷集团股份有限公司 | A kind of rock phosphate in powder closed cycle breaking method |
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Application publication date: 20160629 |