Spring-Loaded Spider Guide Assembly for Coal Pulverizing Mills

摘要

The parallel wear plate is spring loaded onto the spider guide housing. The system reduces both shock loads on the mill and stresses set up in the fixing screws and bolts holding together the spider guide components. There are four equispaced spider guides and four pairs of loading rams. The loading rams are situated vertically in four equispaced pairs around the mill. The ram is loaded with nitrogen gas at a pressure of 47.5 bar. The ram bearing is lubricated with oil at a pressure of 58.3 bar which also acts as a seal for the gas. The whole spring assembly, including its bellows, can be built up in a workshop.