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Process of ore dressing and grinding

A process method and ore grinding technology, which is applied in the direction of grain processing, etc., can solve the problems of difficult dehydration of mineral slime, high investment in equipment and workshops, incomplete mineral dissociation, etc., to achieve complete dissociation, high mineral recovery rate, and reduce The effect of project investment

Inactive Publication Date: 2012-12-12
任逸
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention is researched and invented aiming at the problems of high energy consumption, high investment in equipment and workshops, incomplete mineral dissociation, severe mineral muddying and difficulty in dehydration in the dissociation of bauxite minerals in direct and reverse flotation.

Method used

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  • Process of ore dressing and grinding

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Experimental program
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Effect test

Embodiment 1

[0018] The Henan bauxite with an aluminum-silicon ratio of 3.5-4.0 and a large amount of slime is crushed to less than 25mm. After crushing, the ore is quantitatively transported into the wet roller mill 1 by a belt conveyor. The wet roller mill uses a vertical Mortar rotary mill, add water into the vertical mortar rotary mill, and the ore is ground into coarse pulp in the vertical mortar rotary mill. The particle size of the coarse pulp is +3mm30%. Screening equipment 2 screening, screening equipment 2 is a 0.5mm wet vibrating screen, the coarse ore particles screened by the wet vibrating screen enter the wet ball mill 3, and the pulp is further ground in the wet ball mill 3 and enters the middle Box 5, the pulp under the wet vibrating screen enters the middle box 5, the pulp in the middle box 5 is mixed pulp, the pulp in the middle box 5 is sent to the cyclone 4 through the mortar pump 6, and the bottom flow of the cyclone 4 returns to the wet ball mill 3. Form a closed-circ...

Embodiment 2

[0020]The Henan bauxite with an aluminum-silicon ratio of 2.0-2.5 and a large amount of slime is crushed to less than 25mm. After crushing, the ore is quantitatively transported into the wet roller mill 1 by a belt conveyor. The wet roller mill uses a vertical Mortar rotary mill, add water into the vertical mortar rotary mill, and the ore is ground into coarse pulp in the vertical mortar rotary mill. The particle size of the coarse pulp is +3mm40%. Screening equipment 2 screening, screening equipment 2 is a 0.5mm wet vibrating screen, the coarse ore particles screened by the wet vibrating screen enter the wet ball mill 3, and the pulp is further ground in the wet ball mill 3 and enters the middle Box 5, the pulp under the wet vibrating screen enters the middle box 5, the pulp in the middle box 5 is mixed pulp, the pulp in the middle box 5 is sent to the cyclone 4 through the mortar pump 6, and the bottom flow of the cyclone 4 returns to the wet ball mill 3. A closed-circuit gr...

Embodiment 3

[0022] The Shanxi Yangquan bauxite with an aluminum-silicon ratio of 3.5-4.0 and no slime is crushed to less than 25mm. After crushing, the ore is quantitatively transported into the wet roller mill 1 by a belt conveyor. The wet roller press uses a vertical Rotary mortar mill, add water into the vertical rotary mortar mill, and the ore is ground into coarse pulp in the vertical rotary mortar mill. The particle size of coarse pulp is +3mm20%. After being screened by the screening equipment 2, the screening equipment 2 is a 0.5mm wet vibrating screen, the coarse ore particles screened by the wet vibrating screen enter the wet ball mill 3, and the ore pulp enters the wet ball mill 3 after further grinding In the middle box 5, the ore pulp under the wet vibrating screen enters the middle box 5. The ore pulp in the middle box 5 is mixed ore pulp. The ore pulp in the middle box 5 is sent to the cyclone 4 through the mortar pump 6, and the bottom flow of the cyclone 4 returns to the w...

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Abstract

The invention discloses a process of ore dressing and grinding. The process is realized by combining a wet-process rolling-type mill 1, screening equipment 2, a wet-process ball mill 3, a swirler 4, an intermediate box 5 and a mortar pump 6. Ore is conveyed from the direction A to enter the wet-process rolling-type mill 1; water is conveyed from the direction A to enter the wet-process rolling-type mill 1; ore pulp levigated by rolling in the wet-process rolling-type mill 1 enters the screening equipment 2; oversize coarse ore grains of the screening equipment 2 enter the wet-process ball mill 3; the ore pulp further levigated in the wet-process ball mill 3 enters the intermediate box 5; undersize ore pulp of the screening equipment 2 enters the intermediate box 5; the ore pulp in the intermediate box 5 is delivered into the swirler 4 through the mortar pump 6; the underflow of the swirler 4 returns back to the wet-process ball mill 3; and the overflow of the swirler 4 is discharged along the direction B and is the qualified ore pulp. The wet-process rolling-type mill 1 is a mortar rotary mill. The screening equipment 2 is a wet-process vibrating screen. The process disclosed by the invention has the positive effects that ore grain argillization is overcome; the dissociation is complete; and the investment, the power consumption and the ball consumption are saved.

Description

technical field [0001] A beneficiation and grinding process, suitable for the beneficiation industry of metal ore and non-metallic minerals, used for the dissociation process of useful minerals and gangues, suitable for minerals with useful minerals as crystallization cores and surrounded by gangues It is especially suitable for the dissociation process of minerals in the forward and reverse flotation of bauxite, apatite and other minerals. Background technique [0002] With the increasing depletion of bauxite resources in my country, my country's huge alumina industrial production capacity will have to rely on bauxite beneficiation technology to ensure the supply of qualified bauxite for smelting. At present, the bauxite beneficiation technology has been put into production and application in Zhongzhou Aluminum Plant, Hope Aluminum, Cayman Aluminum and Huiyuan Aluminum. The bauxite beneficiation technology is becoming more and more mature. Wet ball milling technology, that...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B02C21/00B02C23/22
Inventor 任逸
Owner 任逸
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