Ore grinding method for stone coal vanadium ore

A stone coal vanadium and ore grinding technology, which is applied in the direction of grain processing, etc., can solve the problems of long grinding process, complicated operation, and high production cost, and achieve the effects of reducing the grinding process, simple operation, and saving production costs

Inactive Publication Date: 2017-05-10
陕西华源矿业有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The invention provides a grinding method for stone coal vanadium ore to solve the problems of long grinding process flow, complicated operation and high production cost in the prior art

Method used

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  • Ore grinding method for stone coal vanadium ore

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] The stone coal vanadium ore is sent to the frontal crusher for frontal crushing to obtain a frontal crushing material with a particle size of less than 100mm; wherein, the stone coal vanadium ore contains 9% water and 18% of the material with a particle size smaller than 2mm.

[0047] Use the double-roll machine to carry out four times of double-roller grinding on the crushed material in turn. In the first double-roller grinding, the distance between the double-rollers of the double-roller machine is adjusted to 23mm, and the processing capacity is set to 23t / h to obtain the particle size For the first grinding material smaller than 25mm, the content of the material with a particle size smaller than 2mm is 29%; for the second roller grinding, adjust the roller spacing of the roller machine to 3.5mm, and set the processing capacity to 23t / h, to obtain the second grinding material with a particle size of less than 5mm, wherein the content of the material with a particle s...

Embodiment 2

[0049] The stone coal vanadium ore is sent to the frontal crusher for frontal crushing, and the crushed material with a particle size of less than 100 mm is obtained; wherein, the water content of the stone coal vanadium ore is 11%, and the material content of the particle size is less than 2mm is 20%.

[0050] Use the double-roller machine to carry out four double-roller grinding on the broken material in turn. In the first double-roller grinding, adjust the roller spacing of the double-roller machine to 22mm, set the processing capacity to 27t / h, and obtain the particle size For the first grinding material smaller than 25mm, the content of the material with a particle size smaller than 2mm is 30%; for the second roller grinding, adjust the roller spacing of the roller machine to 3.3mm, and set the processing capacity to 27t / h, to obtain the second grinding material with a particle size of less than 5mm, wherein the content of the material with a particle size of less than 2m...

Embodiment 3

[0052] The stone coal vanadium ore is sent to the frontal crusher for frontal crushing to obtain a frontal crushing material with a particle size of less than 100mm; wherein, the stone coal vanadium ore contains 13% of water and 22% of the material with a particle size of less than 2mm.

[0053] Use the double-roll machine to carry out four double-roller grinding on the crushed material in turn. In the first double-roller grinding, adjust the distance between the double-rollers to 20mm, set the processing capacity to 25t / h, and obtain the particle size For the first grinding material less than 25mm, the content of the material whose particle size is less than 2mm is 32%; for the second roller grinding, adjust the roller spacing of the roller machine to 3.0mm, and set the processing capacity to 25t / h, to obtain the second grinding material with a particle size of less than 5mm, wherein the content of the material with a particle size of less than 2mm is 50%; during the third ro...

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Abstract

The invention provides an ore grinding method for stone coal vanadium ore. The method comprises the steps: feeding the stone coal vanadium ore into a jaw crusher to perform jaw crushing to obtain jaw crushed materials with the grain size being less than 100 mm; and performing double roller ore grinding on the jaw crushed materials by a double roller for four times to obtain ore grinding materials, wherein the content of the materials with the grain size being less than 2 mm is above 95 percent. According to the ore grinding method for the stone coal vanadium ore, provided by the invention, the stone coal vanadium ore is ground by a jaw crusher and a double roller combined method, the range of water of the raw ore materials is required to be wide, the double roller is adopted to perform ore grinding directly when the water content of the raw ore materials is below 16 percent, the ore grinding materials which meet requirements can be obtained without assistance of other equipment during ore grinding, the ore grinding process flow is greatly reduced, the method is simple in operation, and the production cost is effectively saved.

Description

technical field [0001] The invention relates to the technical field of ore grinding, in particular to a method for grinding stone coal vanadium ore. Background technique [0002] At present, there are two main technological routes for vanadium extraction using stone coal-type vanadium ore, namely pyro-roasting vanadium extraction and full-wet acid leaching vanadium extraction. However, whether it is vanadium extraction by fire roasting or full wet acid leaching, it is necessary to crush and grind the raw ore first. [0003] In the prior art, the two vanadium extraction processes generally adopt the method of forehead crusher + ball mill for grinding. The specific process is: (1) fire roasting vanadium extraction process: after the raw ore enters the forehead crusher, the crushed material is crushed. When the particle size reaches a certain particle size, it enters the dryer to dry until the moisture content of the material is less than 5%, and then enters the dry ball mill ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B02C21/00B02C4/02B02C4/30B02C4/32B02C1/02
CPCB02C1/02B02C4/02B02C4/30B02C4/32B02C21/00
Inventor 杨宏波李设军张小伟刘俊朱涛唐荣剑
Owner 陕西华源矿业有限责任公司
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