Method for producing lining plate of ball mill by adopting rolling technology

A ball mill liner and process technology, applied in the field of ball mill liner, can solve the problems of affecting the mechanical strength and wear resistance of the liner, high labor intensity of workers, low production efficiency, etc., so as to improve production efficiency and economic benefit and reduce labor. Strength and production cost, the effect of prolonging the service life

Active Publication Date: 2016-01-06
湖北金格实业发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of this invention is to solve the quality defects such as slag inclusion, pores, shrinkage porosity and cold shut in the ball mill liner produced by the casting process, which seriously affects the mechanical strength and wear resistance of the liner. At the same time, the casting cost is high and the workers To solve the problems of high labor intensity and low production efficiency, a rolling process is provided to produce ball mill liners with high mechanical strength, impact toughness and wear resistance

Method used

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  • Method for producing lining plate of ball mill by adopting rolling technology
  • Method for producing lining plate of ball mill by adopting rolling technology
  • Method for producing lining plate of ball mill by adopting rolling technology

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Take the ball mill liner used in the Φ2700×3600 ball mill used in the current mine concentrator as an example.

[0028] The present invention comprises the following steps:

[0029] (1) Smelting, putting scrap steel materials into an intermediate frequency electric furnace for smelting, the melting temperature is: 1600°C;

[0030] (2) Batching, sampling and testing the molten steel in the intermediate frequency electric furnace, detecting the content of each element in the molten steel, and disposing a certain amount of trace elements in the molten steel until the weight percentage of each element in the molten steel reaches the following requirements: C0.30 %, Mn0.90%, Si0.90%, Ni1.0%, Cr0.90%, Mo0.20%, S0.025%, P0.025%, Cu0.5%, Re0.1%, the balance is Fe;

[0031] (3) Modification treatment, the modification agent is placed on the bottom of the ladle after being wrapped with iron sheets or tin foil paper, and the molten steel that meets the element ratio requirements...

Embodiment 2

[0040] Take the ball mill liner used in the Φ2700×3600 ball mill used in the current mine concentrator as an example.

[0041] The present invention comprises the following steps:

[0042] (1) Smelting, putting the scrap steel material into an intermediate frequency electric furnace for melting, the melting temperature is: 1630°C;

[0043] (2) Batching, sampling and testing the molten steel in the intermediate frequency electric furnace, detecting the content of each element in the molten steel, and disposing a certain amount of trace elements in the molten steel until the weight percentage of each element in the molten steel reaches the following requirements: C0.35 %, Mn1.2%, Si1.2%, Ni1.2%, Cr1.2%, Mo0.3%, S0.015%, P0.015%, Cu1.5%, Re0.2%, the balance is Fe;

[0044] (3) Modification treatment, the modification agent is placed on the bottom of the ladle after being wrapped with iron sheets or tin foil paper, and the molten steel that meets the element ratio requirements i...

Embodiment 3

[0053] Take the ball mill liner used in the Φ2700×3600 ball mill used in the current mine concentrator as an example.

[0054] The present invention comprises the following steps:

[0055] (1) Smelting, putting scrap steel material as raw material into an intermediate frequency electric furnace for smelting, the melting temperature is: 1615°C, and the scrap steel material is preferably a ball mill liner made of manganese steel that has been scrapped;

[0056] (2) Batching, sampling and testing the molten steel in the intermediate frequency electric furnace, detecting the content of each element in the molten steel, and disposing a certain amount of trace elements in the molten steel until the weight percentage of each element in the molten steel reaches the following requirements: C0.32 %, Mn1.0%, Si0.95%, Ni1.1%, Cr1.0%, Mo0.25%, S0.01%, P0.01%, Cu0.8%, Re0.15%, the balance is Fe;

[0057] (3) Modification treatment, wrapping the modification agent with iron sheet or tin fo...

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Abstract

The invention discloses a method for producing a lining plate of a ball mill by adopting a rolling technology. The method comprises the following steps: (1), waste steel materials are arranged in a medium-frequency furnace for smelting; (2), molten steel is subjected to sampling and testing to detect the content of each element in the molten steel, and certain quantities of trace elements are added in so as to allocate the content of each element in the molten steel; (3), modification is performed; (4), the molten steel is poured into a steel blank; (5), when the surface temperature of the steel blank is lowered to 850-950 DEG C, the steel blank is rolled into a steel rod; (6), the steel rod is cut into workblanks of which the lengths and the end part shapes are the same as those of the to-be-formed lining plate of the ball mill; (7), the workblanks are polished; and (8), thermal treatment is performed. According to the method, the lining plate of the ball mill which is produced by adopting the rolling technology is compact in inner structure, so that the lining plate of the ball mill has good mechanical strength, impact toughness and abrasive resistance; the labor intensity of workers and production cost are lowered; and the production efficiency and economic benefit are improved.

Description

technical field [0001] The invention relates to a production method of a ball mill liner, in particular to a method for producing a ball mill liner with high mechanical strength, impact toughness and wear resistance by adopting a rolling process. Background technique [0002] At present, ball mills are widely used as crushing equipment in mining, building materials and coal industries. However, the liner in the barrel of the ball mill is the main vulnerable part. The shape of the liner is basically divided into two types: block shape and strip shape. The material is mainly manganese steel, alloy steel and rubber. [0003] see figure 1 , figure 2 , the existing metal bar liner for ball mills has the following structure: the ball mill liner has a strip-shaped body 1, the two ends of the body 1 have internal angle structures 101 arranged symmetrically, and along the long sides of the body 1 A sinker 102 is provided on the top; during specific installation and use, the sinke...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C38/44C21D1/18B23P15/00
CPCY02P10/20
Inventor 冯汉华胡水洋桂军施小峰汪睿黄斌朱宏学杨再超
Owner 湖北金格实业发展有限公司
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