Many liner plates are be used in our production, and they will be worn out easily due to improper operation. What is the reason of serious-wear liner plate? Understand the reason why these problems occur and solve them will help us use them longer in the correct operation.
(1) The influence of the grindability index of coal
The small grindability index (or poor grindability) will aggravate the wear of ball mill liner plates.
(2) The influence of unreasonable design, production process and installation
The square bolt holes which are used for liner plate of fixing ball mill will lead to stress concentration, causing breakage at this place easily. The quality of liner plate installation is crucial to the safe operation of ball mill.
(3) The wear of liner plate and steel ball
The liner plates and steel balls are the easy-to-wear parts of ball mill. When the ball mill is working, liner plate is worn by the falling impact of steel balls and materials, and it is also worn by the sliding steel balls. In addition, the wear resistance of liner plates will increase along with the hardness of materials. At the same time, because steel ball and liner plate rub together, one side will be worn faster while the hardness of another side increases. Therefore, select correct liner plate to coordinate with steel ball working can improve their wear resistance.
(4) The material and heat treatment process of liner plate do not meet the requirements
The low yield strength of liner plates made of high manganese steel are resulting in plastic deformation easily under the impact and grinding between steel balls and coal during the operation of ball mill. Precisely, the square head bolts of the ball mill are subjected to a large shear force, so that the bolts used to fix the liner plate are often broken.
(5) The influence of operating conditions
When the ball grinding mill cannot adjust the amount of coal fed into the ball mill in time will cause that the coal stored inside cannot reach the requirement so that some steel balls will directly rub against liner plate. The great impact will aggravate the wear of liner plate, influencing its service life directly.
(6) Defects are not solved in time
If the ball mill liner plate and the fixing bolts are broken but not be found or solved in time, it will bring disaster to other liner plate, and even deform the cylinder.
These are the reasons why liner plate is easy to be worn. We should pay attention to the actual operation process. We are not only producing liner plates but also mantle, blow bar etc., and we hope to help your machining become better and better.
Shanvim Industry (Jinhua) Co., Ltd., established in 1991, is a wear-resistant parts casting enterprise; it is mainly engaged in the wear-resistant parts such as mantle, jaw plate, hammer , blow bar, ball mill liner, etc.; there are medium and high , Ultra-high manganese steel, wear-resistant alloy steel, low, medium and high chromium cast iron materials, etc.; mainly for the production and supply of wear-resistant castings for mining, cement, building materials, electric power, crushing plants, machinery manufacturing and other industries; annual production capacity of more than 15,000 tons Mining machine production base.
Post time: Apr-12-2022