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在磨矿作业中,全世界每年消耗的钢材达50多万吨。近年来,由于矿石品位下降和要求矿石细磨,使磨矿的钢耗进一步增加。另外,磨机衬板的价格是原钢材的2～4倍,在衬板磨损报废后,其重量还占原重量的25％,造成钢材大量损失。因此,本文就衬板材料、衬板设计、防腐剂的添加和新型衬板的应用等方面,来探讨降低衬板磨损的途径。 (一)改进衬板的材料组份 磨机衬板主要有四种合金制成,马氏体合金白口铁;马氏体热处理合金钢,奥氏合金钢(高锰钢)和珠光体高碳合金钢。这些合金的组成及各自的性质如表1所示。马氏体合金白口铁(镍铬冷硬铸件)是一种耐磨的优质
In grinding operations, the world consumes more than 500,000 tons of steel each year. In recent years, due to the decline in ore grade and require fine grinding of ore, grinding steel consumption to further increase. In addition, the price of mill liner is 2 to 4 times the original steel, scrapped in the liner wear and tear, its weight also accounted for 25% of the original weight, resulting in a lot of steel loss. Therefore, this paper discusses the ways to reduce liner abrasion in terms of liner material, liner design, addition of preservative and application of new liner. (A) to improve the material composition of liner Mill liner mainly made of four alloys, martensitic alloy white iron; martensitic heat treatment alloy steel, austenitic alloy steel (high manganese steel) and pearlite high carbon alloy steel. The composition of these alloys and their respective properties are shown in Table 1. Martensitic alloy white iron (nickel-chromium chilled castings) is a wear-resistant quality