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Method for determining steel ball ratio based on grinding kinetics

A technology of dynamics and dynamic parameters, applied in complex mathematical operations, grain processing, etc., can solve problems such as the application of grinding dynamics, theoretical research on dynamic parameters of residence, etc., to achieve a scientific and reasonable steel ball ratio and a practical method , the effect of increasing the processing capacity

Active Publication Date: 2018-01-19
KUNMING UNIV OF SCI & TECH
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Problems solved by technology

However, the above research conclusions either only explain the phenomenon of grinding kinetics, or only stay in the theoretical study of kinetic parameters, and have not effectively applied grinding kinetics to the practice of steel ball proportioning

Method used

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  • Method for determining steel ball ratio based on grinding kinetics
  • Method for determining steel ball ratio based on grinding kinetics
  • Method for determining steel ball ratio based on grinding kinetics

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Embodiment 1

[0021] Embodiment 1: The method for determining the ratio of steel balls based on grinding kinetics, the specific operations are as follows:

[0022] (1) According to the test requirements, samples were taken from the belt feeding of the ball mill of Jiangxi Yongping Copper Mine Concentrator and the sand returning from the cyclone. The belt feeding samples were taken once an hour, and a total of 24 times were taken, and the samples were mixed. , the total amount is 100kg, and the sample of sand returned from the cyclone is taken once an hour, and a total of 24 times are taken, and the samples are mixed evenly, and the total amount is 100kg; Cover sieve and laser particle size analyzer carry out particle size analysis, and its result is as shown in table 1;

[0023] Table 1 Particle size sieve analysis result composition %

[0024]

[0025] (2) The grinding particle size is +0.2mm, so the products of each size above +0.2mm are blended according to the sand return ratio of 1...

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Abstract

The invention discloses a method for determining the steel ball ratio based on grinding kinetics. The influence of the raw ore property on grinding work is indirectly reflected mainly by means of thegrinding kinetic parameter K values and the grinding kinetic parameter m values; by calculating the K values and the m values, the optimal steel ball diameter is determined, and finally the steel ballratio is obtained; and through industrial application, it is shown that in grinding products, the content of the products with the coarse grade is decreased by about five percentage points, the content of the products with the over-crushed grain size grade is decreased by about one percentage point, the content of the products with the intermediate easily-separated grain-grade is increased by about nine percentage points, the recycling rate is increased by about two percentage points, the unit steel consumption is decreased by about 10%, and the unit electricity consumption is decreased by about 6%. The method is practicable and high in applicability; the steel ball ratio can be calculated aiming at different types of ores; and in the actual application of a ball grinding mill, the treatment capacity of the ball grinding mill is increased, the grain-size composition of the obtained grinding products is more reasonable, and thus the flotation index is improved.

Description

technical field [0001] The invention relates to a method for determining the ratio of steel balls based on grinding kinetics, and belongs to the technical field of mineral processing equipment. Background technique [0002] Grinding operation is a treatment process that reduces the particle size of the material by means of the impact and grinding of the grinding medium and the material itself. It is widely used in cement, new building materials, refractory materials, mines, chemicals, and glass ceramics. All areas closely related to the survival and development of human society. Due to the simple manufacture of spherical media, ball mills are the most widely used in on-site production, and are mainly used in the mineral processing industry. Grinding operations are an essential part of the mineral processing plant, and the investment cost accounts for about 60% of the mineral processing plant investment cost. Magnetic separation Plants account for more than 75%, and account f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B02C17/18G06F17/13
Inventor 肖庆飞宋念平王晓曹亦俊陈禄政衣成玉沈传刚
Owner KUNMING UNIV OF SCI & TECH
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