A kind of enrichment method of sedimentary vanadium ore
A deposition-type and enrichment technology, applied in the field of vanadium beneficiation, can solve the problems of low recovery rate of vanadium concentrate, poor separation effect of ore slime and low screening efficiency.
Active Publication Date: 2018-02-16
CINF ENG CO LTD
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Problems solved by technology
Usually, screening is used to separate waste rocks and enrich high-grade vanadium ore. However, due to mining methods and natural conditions, the ore is easy to agglomerate after muddying, and the screening efficiency of ore with a slightly high water content is low. The ore recovery rate is low, and the separation effect is not ideal
Regardless of dry screening or wet screening, the slime separation effect is poor, the screening efficiency is relatively low, and the recovery rate of vanadium concentrate is only 60%-70%, resulting in a waste of effective use of resources
Method used
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Embodiment 1
[0021] Such as figure 1 As shown, raw ore 1 from the stope that has been coarsely crushed has a vanadium content of 0.5-0.8% and a particle size of -300 mm. It is fed into the cylindrical washing machine 2 through the feeding facility, soaked and scrubbed with washing water, and the amount of washing water added is 2.2 m³ per ton of raw ore, the water pressure is 4.2kg / cm 2 , washing water is added in three stages; the ore is sorted by the grid screen of the cylindrical washing machine 2, the +50 mm is used as waste rock, and the ore and washing water of -50 mm enter the trough washing machine 3 for scrubbing, adding new The washing water volume is 1.8 m³ per ton of raw ore, and the water pressure is 1.9 kg / cm 2 , washing water is added in two stages; after the grit of the trough type ore washing machine 3 is dehydrated by the vibrating screen 4, the product on the vibrating screen 4 (ie +2mm ore) is transported as waste rock 9 to the slag yard for storage; the vibrating scre...
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Abstract
The invention relates to an enrichment method for vanadium ores, in particular to an enrichment method for sedimentary type vanadium ores, and belongs to the field of vanadium ore separation. The enrichment method for sedimentary type vanadium ores aims at solving the technical problem that the low-grade sedimentary type vanadium ores are hard to use and sequentially comprises the following steps that (1) washing water and the sedimentary type vanadium ores with the particle size of 300 mm are added into a cylinder ore washer to be soaked and scrubbed; the ores with the particle size of 50 mm and the washing water enter a groove type ore washer after separation through a grate of the cylinder ore washer; (2) the groove type ore washer replenishes the washing water to scrub the ores, screening dehydration is carried out on setting sand in the groove type ore washer after scrubbing is completed, and a screened product and overflow ore pulp of the groove type ore washer are combined to be thickened and filtered, and become vanadium concentrates after dehydration. By means of the enrichment method for sedimentary type vanadium ores, the grade, yield and recovery of the vanadium concentrates can be improved.
Description
technical field [0001] The invention relates to a method for enriching vanadium ore, in particular to a method for enriching sedimentary vanadium ore, and belongs to the field of vanadium ore dressing. Background technique [0002] Due to the market price of vanadium ore and the nature of the ore itself, vanadium ore has not been processed on a large scale for a long time, only for V 2 o 5 The ore with a grade above 0.8% is used for metallurgical extraction of vanadium, and the metal content of this part of the ore is only 50% of the total metal content of the ore body, resulting in a large accumulation of low-grade vanadium-containing stone coal. The content of carbonate and carbon in stone coal vanadium ore is relatively high, but the grade of vanadium is relatively low. The acid consumption in the acid leaching process is very large, and direct smelting has no economic benefits. In view of the fact that the beneficiation and enrichment of stone coal vanadium ore has bee...
Claims
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IPC IPC(8): B03B7/00
CPCB03B7/00
Inventor 彭雪清黄光洪
Owner CINF ENG CO LTD