Composite stepped wear-resistant lining plate

Abstract

A composite stepped wear-resistant lining plate comprises a lining plate body. A protrusion enabling the lining plate body to be step-shaped is integrally formed on the lining plate body and is the main part for bearing wear, and a wear-resistant preform is composited in the protrusion on the lining plate body. Since the wear-resistant perform is composited in the protrusion on the lining plate body, via the wear-resistant perform, a working surface of the lining plate body is guaranteed to be good in wear-resistant performance, an assembling part of the lining plate body is guaranteed to be good in toughness, so that the lining plate body is enabled to be good in crush resistance and wear resistance and safe to use and is provided with synthesized mechanical properties like good strength, malleability and breaking tenacity at the same time, frictional resistance coefficient between the lining plate body and materials is decreased, the lining plate body is less prone to bonding during running, power consumed on friction is lowered, abrasion is reduced, service life is greatly prolonged, and the composite stepped wear-resistant lining plate is simple and reliable in structure and low in manufacturing cost.

Description

technical field [0001] The invention belongs to the technical field of liners, in particular to a composite stepped wear-resistant liner used on a ball mill. Background technique [0002] Ball mill is an important grinding equipment in building materials, mining and other industries. The most expensive part of ball mill equipment is the mill liner. The main function of the liner is to protect the cylinder and transfer energy to the grinding medium. Mill liners at home and abroad are generally made of metal alloy casting, and the main forms are steps, corrugations, hyperboloids, grooves, etc. According to statistics, the amount of lining plates consumed by metallurgy and mines in my country is 310,000 tons every year, accounting for 8% of the consumption of metal wear-resistant materials. [0003] When the mill is running, the liner is periodically subjected to the combined effects of the impact of the grinding body and the material and the low-stress scratch wear. Due to th...

AI Technical Summary

Problems solved by technology

However, the surface strength of this kind of liner is not high, the wear resistance is not enough, and the stepped convex position is more likely to be worn quickly, and the worn surface forms grooves and wave-shaped pits, which can be worn through after a period of time, and the maintenance and repair amount is large. And it is easy to cause leakage and pollute the environment

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