Shaking table for pre-concentrating vanadium by performing ore dressing on vanadium-containing stone coal

A pre-concentration, vanadium stone technology, applied in the field of shaking table, can solve the problems of low recovery rate, poor sorting effect, low concentrate grade, etc., and achieve high concentrate grade, good sorting effect, and associated minerals. low content effect

Active Publication Date: 2014-02-26
WUHAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Vanadium-containing mica minerals in stone coal and their associated minerals (quartz, feldspar and calcite) have little difference in density and particle size, but vanadium-containing mica minerals are usually in the form of flakes after grinding, and their associated minerals are generally spherical. Pre-enrichment of stone coal by shaking table is not conducive to the separation of flaky vanadium-containing mica minerals from their associated minerals according to shape differences, the separation effect is not good, the concentrate grade is low, and the recovery rate is not high

Method used

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  • Shaking table for pre-concentrating vanadium by performing ore dressing on vanadium-containing stone coal
  • Shaking table for pre-concentrating vanadium by performing ore dressing on vanadium-containing stone coal
  • Shaking table for pre-concentrating vanadium by performing ore dressing on vanadium-containing stone coal

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] The utility model relates to a shaker for pre-enrichment of vanadium in vanadium-containing stone coal beneficiation. Such as figure 1 As shown, the shaking table is composed of a bed surface 4, a support mechanism 6, a slope adjustment mechanism 5 and a transmission mechanism 1. The bed surface 4 is installed on the supporting mechanism 6, and there are three supporting mechanisms 6, and the supporting mechanisms 6 are parallel to each other.

[0029] The bed surface 4 of the present embodiment is as figure 2 As shown, it includes a rough selection bed surface 9 , a multiple selection bed surface 8 and a sweeping bed surface 7 . On the bed surface 4, one end with the ore feeding tank 2 and the water feeding tank 3 is the ore feeding end, the end facing the ore feeding end is the concentrate end, and the end facing the transmission mechanism is the tailings end.

[0030] Such as figure 2 As shown, the scavenging bed surface 7 is located at the tailings end of the ...

Embodiment 2

[0036] The utility model relates to a shaker for pre-enrichment of vanadium in vanadium-containing stone coal beneficiation. Except following technical parameter, all the other are with embodiment 1:

[0037]Both the roughing bed surface 9 and the reselecting bed surface 8 are equipped with 10-11 bed strip groups 12; the pinch-out angle of the bed surface 4 is 40-50 o The slope of the re-selected bed surface 8 is 1-1.5%; the slope of the steep slope bed 11 is 200-240%; the slope of the gentle slope 10 is 45-55%; the roughness of the sweeping bed 7 is 75-85 μm ; The roughness of the roughing bed surface 9 and the re-selecting bed surface 8 is 50-70 μm.

Embodiment 3

[0039] The utility model relates to a shaker for pre-enrichment of vanadium in vanadium-containing stone coal beneficiation. Except following technical parameter, all the other are with embodiment 1:

[0040] Both the rough selection bed surface 9 and the double selection bed surface 8 are equipped with 13~20 bed strip groups 12; the pinch-out angle of the bed surface 4 is 35~45° o The slope of the re-selected bed surface 8 is 1.5-2%; the slope of the steep slope bed 11 is 235-275%; the slope of the gentle slope 10 is 50-58%; the roughness of the sweeping bed 7 is 80-90 μm ; The roughness of the roughing bed surface 9 and the re-selecting bed surface 8 is 55-75 μm.

[0041] This specific embodiment is used in the process of vanadium-containing stone coal beneficiation and pre-enrichment of vanadium, so that the horizontal water flow will arouse a high-intensity eddy current when the roughing bed surface 9 crosses the steep slope bed strip 11, forming a relatively large ascend...

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Abstract

The invention relates to a shaking table for pre-concentrating vanadium by performing ore dressing on vanadium-containing stone coal. According to the technical scheme of the invention, the shaking table consists of a table surface (4), supporting mechanisms (6), a gradient adjusting mechanism (5) and a transmission mechanism (1), wherein the table surface (4) comprises a rough concentration table surface (9), a re-concentration table surface (8) and a scavenging table surface (7); the rough concentration table surface (9) and the scavenging table surface (7) are planes; the re-concentration table surface (8) is an inclined surface of which the gradient is 0.5-2 percent; 10-20 table bar groups (12) are uniformly arranged on each of the rough concentration table surface (9) and the re-concentration table surface (8); each table bar group (12) consists of a steep slope table bar (11) and a slight slope table bar (10) of which the slope surfaces are opposite to each other; the distances between the steep slope table bars (11) and the slight slope table bars (10) are 0.8-0.9 times the lengths of the bottom edges of the steep slope table bars (11); the distances among the table bar groups (12) are 0.4-0.5 times the lengths of the bottom edges of the slight slope table bars (10); the roughness of the scavenging table surface (7) is 65-90 mu.m; and the roughness of the rough concentration table surface (9) and the re-concentration table surface (8) is 40-75 mu.m. The shaking table has the characteristics of improvement on shape concentration, high ore concentrate grade and high recovery rate.

Description

technical field [0001] The invention belongs to the technical field of shaking tables, and in particular relates to a shaking table used for vanadium-containing stone coal beneficiation and pre-enrichment of vanadium. Background technique [0002] Stone coal is a unique vanadium resource in my country, of which V 2 o 5 The reserve is 1.18×10 8 t, is V in vanadium-titanium magnetite 2 o 5 6.7 times of reserves, accounting for 87% of the total vanadium resources in my country. Extracting vanadium from stone coal is an important direction for the development of vanadium resources in my country. Since the vanadium in my country's stone coal mainly exists in the form of isomorphism instead of Al(III) in the alumina octahedron in the mica minerals, it is difficult to extract vanadium. The current process for extracting vanadium from stone coal generally includes decarburization, Roasting, water leaching / acid leaching, ion purification, vanadium precipitation and calcination an...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B03B5/04B03B5/06
Inventor 张一敏赵云良包申旭刘涛陈铁军边颖
Owner WUHAN UNIV OF TECH
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