Special grinding ball of titanium dioxide and preparation method thereof

A technology of titanium dioxide and grinding balls, which is applied in the manufacture of tools, heat treatment equipment, quenching agents, etc., can solve the problems affecting the purity and whiteness of titanium dioxide, excessive chromium, molybdenum, and nickel content in titanium dioxide, and achieve low out-of-round rate , good whiteness, easy to remove impurities

Inactive Publication Date: 2013-04-24
广东翔龙建材有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

my country's titanium dioxide production industry uses about 10,000 tons of ball mill balls per year, and most of the balls used are bearing steel balls or low-chromium alloy balls. Using these two types of balls to grind a ton of titanium dioxide will have more than 100 grams of grinding balls are worn away, causing metal components that are taboo for titanium dioxide such as chromium, molybdenum, and nickel in the grinding balls to fall into the titanium dioxide, resulting in excessive chromium, molybdenum, and nickel content in the obtained titanium dioxide, which affects the quality of the titanium dioxide. Purity and Whiteness

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Prepare low-alloy ball mill balls for titanium dioxide as follows:

[0021] (1) Detect scrap steel by direct-reading spectrometer, and select 1010kg of scrap steel material whose content of chromium, molybdenum and nickel does not exceed 0.3% (scrap steel burning loss is about 30-60kg) as the main raw material, that is, eliminate the alloy content from the source Exceeding the standard may affect the whiteness and purity of titanium dioxide;

[0022] (2) Put the steel scrap selected in step (1) together with 36kg of recarburizer with a content of 90%, 24kg of silicon (Si), and 10kg of manganese (Mn) into an intermediate frequency melting furnace for melting, and the furnace will be released when the temperature reaches 1450-1600 , the composition content meets carbon (C) 3.40% ~ 3.80%, silicon (Si) 2.30% ~ 2.60%, manganese (Mn) 0.60% ~ 1.00%, sulfur (S) 0 ~ 0.035%, phosphorus (P) 0 ~ 0.35 %;

[0023] (3) Add 0.15kg of nano-alloy modifier and 0.3kg of rare earth magnes...

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PUM

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Abstract

The invention discloses a special grinding ball of titanium dioxide for grinding in titanium dioxide industry and a preparation method thereof. The raw materials of the grinding ball comprise the following components by weight percent: 3.40%-3.80% of C, 2.30%-2.60% of Si, 0.60%-1.00% of Mn, 0-0.035% of S, 0-0.35% of P, 0-0.03% of nanometer alloy modifier, 0.01%-0.03% of rare earth magnesium and the balance of steel scrap (Fe). The preparation method of the special grinding ball is based on the alloy cast ball casting technology and comprises the steps of changing chemical compositions and adjusting heat treatment technology. The special grinding ball of titanium dioxide prepared by the formulation and preparation method of the invention has extremely low chromium alloy content, high hardness and low wear and out-of-roundness, and titanium dioxide grinded by the grinding ball has high purity, good whiteness and high quality.

Description

technical field [0001] The invention relates to a grinding ball of a ball mill, in particular to a special grinding ball for titanium dioxide and a preparation method thereof. Background technique [0002] The ball mill is a common equipment for fine crushing after the material is crushed. It is indispensable in the production process of titanium dioxide. The ball of the ball mill is the most important basic accessory of the ball mill. my country's titanium dioxide production industry uses about 10,000 tons of ball mill balls per year, and most of the balls used are bearing steel balls or low-chromium alloy balls. Using these two types of balls to grind a ton of titanium dioxide will have more than 100 grams of grinding balls are worn away, causing metal components that are taboo for titanium dioxide such as chromium, molybdenum, and nickel in the grinding balls to fall into the titanium dioxide, resulting in excessive chromium, molybdenum, and nickel content in the obtained ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C37/10C22C33/10C21D1/18C21D1/607
Inventor 章学良阚曙辉
Owner 广东翔龙建材有限公司
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