Application Method for wet grinding:
Typically,the quantity of alumina ball loaded into the ball mill is not less than 55% of the total ball mill volume.
Empirical formula of alumina ball quantity fed into ball mill
M=3.14脳R2脳D脳L脳25%梅1000
M:alumina ball quantity D:Alumina ball gravity
R:Ball mill barrel radius L:Ball mill barrel length
Alumina ball partition ratio
For a new installed ball mill,the alumina ball partition depends on the capacity of the ball mill and the granular size of the material for grinding.
Alumina ball make-up quantity=Primary ball quantity 脳abrasion脳Grinding time
Application Method for dry grinding
Application Method for dry grinding
Dry grinding is widely used in mining,ceramics,powder and many other industries.For the grinding media stains the raw material in the powder industry,we use some imported raw alumina powder for design and production of alumina balls for dry grinding,with better toughness and resistance.This is a solution to the material contamination caused by grinding media in powder industry.
alumina ball quantity fed into dry-type ball mill
alumina ball quantity fed into dry-type ball mill
The quantity of alumina ball for differenct ball mills as below:
Ball mill for ceramic industry:M=3.14脳R2脳D脳L脳25%梅1000
Barrel mill for powder industry
Stirring mill:
Alumina ball partition ratio
Alumina ball partition ratio
The partition ratio of alumina ball for dry-type ball mill depends on the harness and feeding size of the material to be grinded.Generally,the forming method is cold isostatic pressing(CIP)
Test method of Microcrystalline alumina balls
This method is through the alimina ball in polyurethane tank,to provide the conditions for assessing the impact of grinding ball impact resistance,wear the nuit of time that the impact resistance of alumina ball.
1,An apparent size of qualified samples of alumina ball 4kg,grinding into cans,adding 4L water resistant impact test machine is grinding 80 cans per minute,2 hours to switch grinding,remove the sample water to clean,dry spare.
2,Weighing the processed sample on the balance.m
3,the sample into the tank,combined with the weight of the water,after sealing must not lesking into the water test machine so that grinding can turn 80 per minute,24-hour ground stop.
4,Four samples the removed from the grinding jar,washed with water,dried weight m
5,Measuring the average diameter of the ball
6,Calculation of the abrasion wear
Wear coefficient:g/kg h=(m1-m2)/m1/24脳103
Equivalent wear锛堚帮級EWT=KD(m1-m2)/m1
Empirical formula:Equivalent wear=Equivalent wear脳Diamrter
Kupper