CN104907178A - Low-temperature scheelite concentrate heated flotation process - Google Patents
Low-temperature scheelite concentrate heated flotation process Download PDFInfo
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- CN104907178A CN104907178A CN201510285806.4A CN201510285806A CN104907178A CN 104907178 A CN104907178 A CN 104907178A CN 201510285806 A CN201510285806 A CN 201510285806A CN 104907178 A CN104907178 A CN 104907178A
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Abstract
The invention discloses a low-temperature scheelite concentrate heated flotation process. The process comprises the following steps of concentrating scheelite rough concentrate to the concentration of more than 65 percent, pumping the scheelite rough concentrate into a heating stirring barrel through a slurry pump, detecting mineral slurry concentration of a sample, and calculating the dry mine amount of the pulp in the barrel; heating the pulp, when the temperature is increased to 50 DEG C, adding sodium hydroxide, heating the pulp to the temperature of 75 DEG C, adding a reagent removal TY-1, continuously heating the pulp to the temperature of 85 DEG C, and then stopping heating; after keeping the temperature of 85 DEG C for 1 hour, diluting the pulp to the concentration of 25 to 30 percent, and performing flotation; after the temperature is reduced, shortening the heating time of each barrel of pulp to 1.1 hour from 1.5 hour, wherein the recovery rate of concentration is kept to be more than 96 percent, and the wet concentrate grade is kept to be about 30 percent. According to the process, the labor intensity of furnace men is reduced, the operation load of a boiler is reduced, and meanwhile, coal consumption, electricity consumption and boiler maintenance fee are also saved.
Description
Technical field
The invention belongs to mineral processing technology field, relate generally to the selected floatation process of heating of the white tungsten of a kind of low temperature.
Background technology
Within 2008, white tungsten Designing Ore-Dressing Plants disposal ability is 6000t/d, white tungsten head grade about 0.05%, and rough concentrate amount is about 200t/d.Boiler is 6t/h steam boiler, substantially meets winter production, needs simultaneously of living.Present disposal ability has reached more than 15200t/d, white tungsten head grade about 0.095%, and rough concentrate amount reaches more than 800t/d, and boiler continuous oepration at full load in 24 hours still cannot meet winter production, needs simultaneously of living.Boiler gas supply capacity is not enough, has had a strong impact on normal production and life.
Summary of the invention
For overcoming the deficiency in background technology, the object of this invention is to provide the selected floatation process of heating of the white tungsten of a kind of low temperature, do not changing boiler to reach, reducing fireman's labour intensity as far as possible, when guaranteeing that production technology and production target keep stable simultaneously, reduce white tungsten rough concentrate warm temperature, improve boiler operating efficiency, when guaranteeing that present stage production disposal ability is double, life heating in winter and warming up pulp are neglected neither.
For achieving the above object, the present invention adopts following technical scheme to realize:
The selected floatation process of heating of the white tungsten of low temperature: white tungsten rough concentrate is concentrated to more than 65%, sending into through Pulp pump heats in agitator, sampling detects pulp density and calculates this barrel of ore pulp does ore deposit amount, then to warming up pulp, when being warmed to 50 DEG C, NaOH is added, when being warmed to 75 DEG C by the amount of precalculating, reagent removal agent TY-1 is added by the amount of precalculating, continue to heat to 85 DEG C, then stop heating, be incubated, after 1 hour, slurry dilution carried out flotation operation to 25-30% concentration.After temperature reduces, every barrel of warming up pulp time foreshortened to 1.1 hours by 1.5 hours, and the selected rate of recovery of selecting still remains on more than 96%, and wet concentrate grade still remains on about 30%, and indices is the same with flotation of ore pulp index of normally heating.
Owing to adopting technique scheme, the present invention has following superiority:
This invention is double at ore handling capacity, rough concentrate amount is surged, boiler continuous oepration at full load in 24 hours still cannot meet normal produce and life simultaneously needs when, room test of many times and production are constantly explored and are combined by experiment, the selected floatation process of heating of a set of white tungsten newly progressively found out, after temperature reduces, indices still remains unchanged, and even also has the degree suitably improved.
This invention not only reduces fireman's labour intensity, boiler operatiopn load, also a saving coal consumption, power consumption and boiler attendance expense simultaneously.Calculate by current production capacity, coal, electricity, boiler operatiopn maintenance cost etc. more than 40 ten thousand yuan can be saved every year, effectively improve Business Economic Benefit, decrease the pollution to environment simultaneously.
Detailed description of the invention
The selected floatation process of heating of the white tungsten of low temperature: white tungsten rough concentrate is concentrated to more than 65%, sending into through Pulp pump heats in agitator, sampling detects pulp density and calculates this barrel of ore pulp does ore deposit amount, then to warming up pulp, when being warmed to 50 DEG C, NaOH is added, when being warmed to 75 DEG C by the amount of precalculating, reagent removal agent TY-1 is added by the amount of precalculating, continue to heat to 85 DEG C, then stop heating, be incubated, after 1 hour, slurry dilution carried out flotation operation to 25-30% concentration.After temperature reduces, every barrel of warming up pulp time foreshortened to 1.1 hours by 1.5 hours, and the selected rate of recovery still remains on more than 96%, and wet concentrate grade still remains on about 30%, and indices is the same with flotation of ore pulp index of normally heating.
Claims (2)
1. the selected floatation process of heating of the white tungsten of low temperature, is characterized in that: its preparation process is:
(1) white tungsten rough concentrate is concentrated to more than 65%, sends into heat in agitator through Pulp pump, and sampling detects pulp density and calculates this barrel of ore pulp does ore deposit amount;
(2) to warming up pulp, add NaOH when being warmed to 50 DEG C, then be warmed to 75 DEG C, then add reagent removal agent TY-1, continue to heat to 85 DEG C, then stop heating;
(3) after 1 hour, slurry dilution is carried out flotation operation to 25-30% concentration 85 DEG C of insulations;
(4), after temperature reduces, every barrel of warming up pulp time is 1.1 hours, and selected operation recovery remains on more than 96%, and wet concentrate grade remains on about 30%.
2. the selected floatation process of heating of the white tungsten of low temperature as claimed in claim 1, it is characterized in that: in described step (1), after sampling detects pulp density, calculate this barrel of ore pulp according to pulp density and do ore deposit amount, do ore deposit amount by ore pulp when being warmed to 50 DEG C in step (2) and add NaOH, when being warmed to 75 DEG C, doing ore deposit amount according to ore pulp and add reagent removal agent TY-1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510285806.4A CN104907178A (en) | 2015-05-29 | 2015-05-29 | Low-temperature scheelite concentrate heated flotation process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510285806.4A CN104907178A (en) | 2015-05-29 | 2015-05-29 | Low-temperature scheelite concentrate heated flotation process |
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| Publication Number | Publication Date |
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| CN104907178A true CN104907178A (en) | 2015-09-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510285806.4A Pending CN104907178A (en) | 2015-05-29 | 2015-05-29 | Low-temperature scheelite concentrate heated flotation process |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106733206A (en) * | 2017-01-03 | 2017-05-31 | 昆明理工大学 | A kind of application of ultrasonic wave during scheelite heating stirring reagent removal |
| CN108435429A (en) * | 2018-03-30 | 2018-08-24 | 中南大学 | A kind of ore-dressing technique recycling tungsten, fluorite from low-grade tungsten flotation high calcium rough concentrate |
| CN110152890A (en) * | 2019-06-05 | 2019-08-23 | 广东省资源综合利用研究所 | A kind of flotation and metallurgy method of white tungsten preenrichment concentrate dephosphorization |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101648157A (en) * | 2009-08-25 | 2010-02-17 | 广州有色金属研究院 | Beneficiation method of black and white tungsten mineral |
| CN101869876A (en) * | 2010-05-24 | 2010-10-27 | 广州有色金属研究院 | Ore dressing method of low-grade scheelite |
| CN102631976A (en) * | 2012-03-30 | 2012-08-15 | 洛阳栾川钼业集团股份有限公司 | Method for replacing lime by sodium hydroxide in scheelite heating concentration |
| CN102658241A (en) * | 2012-04-23 | 2012-09-12 | 洛阳栾川钼业集团股份有限公司 | Flotation process adopting flotation column to regrading scheelite instead of flotation machine |
-
2015
- 2015-05-29 CN CN201510285806.4A patent/CN104907178A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101648157A (en) * | 2009-08-25 | 2010-02-17 | 广州有色金属研究院 | Beneficiation method of black and white tungsten mineral |
| CN101869876A (en) * | 2010-05-24 | 2010-10-27 | 广州有色金属研究院 | Ore dressing method of low-grade scheelite |
| CN102631976A (en) * | 2012-03-30 | 2012-08-15 | 洛阳栾川钼业集团股份有限公司 | Method for replacing lime by sodium hydroxide in scheelite heating concentration |
| CN102658241A (en) * | 2012-04-23 | 2012-09-12 | 洛阳栾川钼业集团股份有限公司 | Flotation process adopting flotation column to regrading scheelite instead of flotation machine |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106733206A (en) * | 2017-01-03 | 2017-05-31 | 昆明理工大学 | A kind of application of ultrasonic wave during scheelite heating stirring reagent removal |
| CN108435429A (en) * | 2018-03-30 | 2018-08-24 | 中南大学 | A kind of ore-dressing technique recycling tungsten, fluorite from low-grade tungsten flotation high calcium rough concentrate |
| CN108435429B (en) * | 2018-03-30 | 2019-11-08 | 中南大学 | A kind of ore-dressing technique recycling tungsten, fluorite from low-grade tungsten flotation high calcium rough concentrate |
| CN110152890A (en) * | 2019-06-05 | 2019-08-23 | 广东省资源综合利用研究所 | A kind of flotation and metallurgy method of white tungsten preenrichment concentrate dephosphorization |
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Application publication date: 20150916 |
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| RJ01 | Rejection of invention patent application after publication |