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A kind of grinding process production method using stubborn stone as grinding medium

A technology of grinding medium and production method, which is applied in the direction of grain processing, etc., can solve the problems of unstable medium filling rate, achieve stable medium filling rate, reduce pollution and influence, and improve indicators

Active Publication Date: 2018-11-13
CHINA NERIN ENG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The object of the present invention is to provide a kind of grinding process production method that adopts the obstinate stone as the grinding medium, overcomes the instability of the media filling rate when the existing known self-grinding / semi-autogenous grinding process has the obstinate stone as the grinding medium shortcoming

Method used

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  • A kind of grinding process production method using stubborn stone as grinding medium
  • A kind of grinding process production method using stubborn stone as grinding medium
  • A kind of grinding process production method using stubborn stone as grinding medium

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] Embodiment 1: as figure 1 As shown, a kind of ore grinding process production method adopts pebbles as the grinding medium, the autogenous / semi-autogenous mill 2 and the ball mill 4 are arranged in parallel, and the vertical re-mill 14 is arranged on the ore grinding bridge, and placed with the ball mill 4 feed side. The raw ore is fed into the autogenous / semi-autogenous mill 2 by the feeding belt conveyor 1 of the autogenous / semi-autogenous mill, and the discharge of the autogenous / semi-autogenous mill 2 is screened and classified by the double-layer linear vibrating screen 3, and then classified Two grades of +30mm and -30~+8mm rocks are produced, and the +30mm rocks enter the rock storage bin through one of the +30mm rock belt conveyors 5 and +30mm rock high-inclination belt conveyor 6. There is a quantitative metering feeding belt machine under the warehouse, and the stubborn stone is fed into the ball mill 4 through the second 7 of the +30mm stubborn stone belt co...

Embodiment 2

[0013] Embodiment 2: as figure 2 As shown in the figure, a grinding process production method using pebbles as the grinding medium, the autogenous / semi-autogenous grinding machine 2 and the ball mill 4 are arranged in parallel, and the vertical re-grinding machine 14 is arranged on the flotation bridge, placed on the automatic Mill / SAG mill 2 sides. The raw ore is fed into the autogenous / semi-autogenous mill 2 by the feeding belt conveyor 1 of the autogenous / semi-autogenous mill, and the discharge of the autogenous / semi-autogenous mill 2 is screened and classified by the double-layer linear vibrating screen 3, and then classified Two grades of +30mm and -30~+8mm rocks are produced, and the +30mm rocks enter the rock storage bin through one of the +30mm rock belt conveyors 5 and +30mm rock high-inclination belt conveyor 6. There is a quantitative metering feeding belt machine under the warehouse, and the stubborn stone is fed into the ball mill 4 through the second 7 of the +...

Embodiment 3

[0014] Embodiment 3: as image 3 As shown in the figure, a grinding process production method using pebbles as the grinding medium, the autogenous / semi-autogenous grinding machine 2 and the ball mill 4 are arranged in a row opposite to each other, and the vertical re-grinding machine 14 is arranged on the feeding line of the ball mill. end side. The raw ore is fed into the autogenous / semi-autogenous mill 2 by the feeding belt conveyor 1 of the autogenous / semi-autogenous mill, and the discharge of the autogenous / semi-autogenous mill 2 is screened and classified by the double-layer linear vibrating screen 3, and then classified Two grades of +30mm and -30~+8mm rocks are produced, and the +30mm rocks enter the rock storage bin through one of the +30mm rock belt conveyors 5 and +30mm rock high-inclination belt conveyor 6. There is a quantitative metering feeding belt machine under the warehouse, and the stubborn stone is fed into the ball mill 4 through the second 7 of the +30mm ...

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Abstract

The invention discloses an ore grinding technology production method using hard rocks as an ore grinding medium. The production method is characterized by comprising steps of grading of the hard rocks discharged by an autogenous / semi-autogenous mill, transport of the hard rocks used as the ore grinding medium, storage, quantitative feeding of the hard rocks into a ball mill and a vertical type regrinding mill as well as a bypass transport system for returning redundant hard rocks to the autogenous / semi-autogenous mill, the hard rocks discharged by the autogenous / semi-autogenous mill can be fed into the ball mill and the regrinding mill automatically, regularly, quantitatively and stably according to a set value, the hard rock medium filling ratio is stabilized, ore grinding effects of the ball mill and the regrinding mill are fully realized, and the redundant hard rocks can be directly returned to the autogenous / semi-autogenous mill or returned to the autogenous / semi-autogenous mill after being broken, so that pollution and influence of iron on ore grinding products are reduced, and improvement on indexes for subsequent grading operation is facilitated.

Description

technical field [0001] The invention relates to a process method for configuring ore grinding equipment in the design of an ore dressing plant, in particular to a production method for the process of ore grinding using cobalt as a grinding medium. Background technique [0002] Autogenous grinding or semi-autogenous grinding as the mainstream grinding process has become the first choice of grinding process in mineral processing plants due to its simple process, good flexibility and strong adaptability, and has been widely used. However, this process will inevitably produce a certain amount of hard-to-grind particles, that is, stubborn rock. Usually, in the design of the concentrator, this part of the stubborn rock is directly returned through the belt conveyor, or returned to the autogenous or semi-autogenous grinding machine after being crushed. , This will not only increase the cost of grinding, but also reduce the production capacity of self-grinding or semi-autogenous mil...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B02C17/18
CPCB02C17/18B02C17/205
Inventor 余浔吴彩斌冯裕果石贵明
Owner CHINA NERIN ENG CO LTD
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