Mining mineral processing equipment, ball mill is an essential part of many ball mill ball mill liner users reflect the short service life, high production costs. Fortune machine based on years of experience in production life of ball mill liner effects summarized the main factors, the user reference to the ball mill, in production to avoid a similar situation, improve the service life of ball mill liner.
    1, the impact of media

    Media have often broken ball: various mine materials (manganese, copper, tungsten ore, chrome ore, etc.), various types of stone (limestone, granite, gneiss, basalt, gray rock, etc.), used in power industry coal. Medium hardness indicator is an important decision based on failure of liner wear and hardness, the shorter the service life of lining, the other hand, life cycle of growth. Coal fuel thermal power plant is the main rolling mill grinding media, the domestic availability of coal around the mill factor is generally 0.8 to 2.0, if mixed with too much coal in the coal, sand, stone, not heat enough but also poor mill, will inevitably lead to premature failure of liners.

    2, condition Operation

    1) elimination of defects is not timely. For example, loose bolts fall, breaking off individual backing, if not timely replaced, and gradually extended defects, will bring disaster to other cylinder liner and cause distortion.

    2) the rate is not normal, adjusted properly, there running short positions, some direct friction and ball impact cylinder liner, the formation of two-body wear, this lining and fragmentation of steel balls, wear a substantial increase in opportunities is a very bad mode of operation.

    3, the impact of liner material

    From the liner material on the physical properties of, anti-wear effect of the main parameters affecting the hardness and toughness are the two major indicators of the matching problem, the high hardness and its wear resistance is good, is basically a proportional relationship, as Ball run them, is Ball State was falling waterfall, on the material and the liner will have an impact energy, impact energy depends on the diameter and the grinding ball diameter the size of the cylinder.

    4, the design manufacture and installation of quality

    The role of lining approximately two, one is to protect the cylinder, followed by the speed of the ball in a specific upgrade to the required height, so that was waterfall-like drop ball, rolling mill to achieve the desired effect.

    Liner manufacturing quality is poor, such as, not smooth, tube wall deformation, installation, liner and liner, liner and cylinder wall, do not fit between the cast and their own flaws, mechanical properties, chemical composition does not meet eligibility requirements, have affect the normal operation of the direct factors ball.