Process adopting barite-fluorite paragenic ore for preparing barite powder

A barite powder and barite technology, applied in the field of barite powder preparation, can solve the problems of unreasonable particle size selection, unsuitable photoelectric separation, and poor sorting effect, so as to increase enterprise benefits, enrich product types, and facilitate The effect of the operation

Active Publication Date: 2016-02-03
湖南楚天钡业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Its technical defect is that the material has not been enriched by beneficiation before entering the photoelectric separation, the selected particle size is unr

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] (1) The raw ore of barite-fluorite paragenetic ore (main mineral composition: barite 63.32%, fluorite 20.65%, calcite 5.68%, quartz 3.67%) is crushed in three stages and one closed circuit, and screened and classified as < 1mm, 1-3mm and 3-6mm three particle grades, the yields are 40%, 25% and 35% respectively, and then the raw ore with a particle size of <1mm is re-selected by a spiral chute to obtain a re-election with a particle size of <1mm Concentrated ore (proportion of 4.21), gravity separation (proportion of 3.62) and gravity separation tailings accounted for 16.06%, 10.56% and 13.38% of the original ore respectively, and the raw ore with a particle size of 1-3mm and 3-6mm Gravity separation is carried out by jig respectively, and the gravity separation concentrate (the proportion is 4.24), the gravity separation ore (the proportion is 3.62) and the gravity separation tailings with a particle size of 1-3mm are obtained, and the yields of the original ore are resp...

Embodiment 2

[0042] (1) The raw ore of barite-fluorite paragenetic ore (main mineral composition: barite 58.89%, fluorite 28.31%, calcite 4.89%, quartz 2.65%) is crushed in three stages and one closed circuit, and screened and classified as < 1mm, 1-3mm and 3-6mm three particle grades, the yields are 42.94%, 23.76% and 33.30% respectively, and then the raw ore with a particle size of <1mm is re-selected by a spiral chute to obtain a re-election with a particle size of <1mm Concentrated ore (proportion of 4.20), gravity separation (specific gravity of 3.65) and gravity separation tailings account for 14.68%, 13.28% and 14.98% of the original ore respectively, and the raw ore with a particle size of 1-3mm and 3-6mm Using jigs to carry out gravity separation respectively, the gravity separation concentrate (specific gravity is 4.22), gravity separation ore (specific gravity 3.65) and gravity separation tailings with particle size of 1-3mm are obtained, and the yields of the original ore are re...

Embodiment 3

[0049] (1) The raw ore of barite-fluorite symbiotic ore (main mineral composition: 68.13% barite, 13.37% fluorite, 3.27% calcite, 1.98% quartz) is crushed in three stages and one closed circuit, and screened and classified as < 1mm, 1-3mm and 3-6mm three particle grades, the yields are 38.92%, 27.56% and 33.52% respectively, and then the raw ore with a particle size of <1mm is re-selected by a spiral chute to obtain a re-election with a particle size of <1mm Concentrated ore (with a specific gravity of 4.22), gravity-selected ore (with a specific gravity of 3.58) and gravity-selected tailings accounted for 17.42%, 8.01% and 13.49% of the raw ore, respectively, and the raw ore with a particle size of 1-3mm and 3-6mm Gravity separation is carried out by jig respectively, and the gravity separation concentrate (with a specific gravity of 4.26), the gravity separation ore (with a specific gravity of 3.58) and the gravity separation tailings with a particle size of 1-3mm are obtaine...

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PUM

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Abstract

A process adopting barite-fluorite paragenic ore for preparing barite powder comprises the steps of (1), after crushing, screening and classifying the raw barite-fluorite paragenic ore, carrying out classification and gravity concentration; (2), dehydrating and drying the concentrate subjected to classification and gravity concentration in the step (1) so as to obtain barite rough concentrate; (3), separately carrying out photoelectric separation on the barite rough concentrate with the size fraction of 1-3 mm and 3-6 mm obtained in the step (2) so as to obtain barite concentrate with the whiteness classified; (4), grinding the barite rough concentrate with the size fraction smaller than 1 mm obtained in the step (2), the barite concentrate with the whiteness smaller than 88% obtained in the step (3) and the barite concentrate with the whiteness greater than or equal to 88% obtained in the step (3) so as to obtain the barite powder. The process has the advantages that the procedures are simple, the investment is small, the energy consumption is low, and gravity concentration waste water can be reused after being clarified so that environmental friendliness can be achieved. The yield of the barite concentrate with the whiteness greater than or equal to 88% is high, and the barite concentrate can be used in the high-end fields such as coatings, oil paint, rubber and the national defense industry after being ground to form powder.

Description

technical field [0001] The invention relates to a process for preparing barite powder by using barite-fluorite symbiotic ore, in particular to a process for preparing barite powder by using barite-fluorite symbiotic ore by combining gravity separation and photoelectric separation . Background technique [0002] Barite is the most common mineral of barium, the main component is barium sulfate (BaSO 4 ), has the characteristics of high density, stable chemical and thermal properties. The annual output of barite in my country accounts for about 45% of the total global output, reaching more than 3 million tons. Barite and fluorite resources are widely distributed in the southwest of Hubei, northwest of Hunan, southeast of Chongqing and northeast of Guizhou, and are the main producing areas of barite-fluorite symbiotic ore in my country. At present, barite powder is mainly used in low value-added fields such as petrochemical industry, such as barite weighting agent, chemical p...

Claims

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Application Information

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IPC IPC(8): B03B7/00B07C5/342
Inventor 吴万昌李兵甘顺鹏熊学恒
Owner 湖南楚天钡业有限公司
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