Grinding roller with a cooling device

Abstract

The present invention relates to a grinding roller (11) for a rolling mill, which grinding roller is mounted on a grinding roller shaft (12) so as to be rotatable about its longitudinal axis, whereinthe grinding roller shaft (2) has an axial bore (14) in which there is arranged a cooling device (10) which has at least one pipe (16, 20) which is arranged in the bore (14), wherein a first duct (18)for guiding a coolant is formed between the pipe (16, 20) and the inner surface of the bore (14) and a second duct (24) for guiding the coolant is formed within the pipe (16, 20), wherein the at least one pipe (16, 20) is formed from a plastic.

Description

technical field [0001] The invention relates to a grinding roller for a roller mill, which has a cooling device for cooling the grinding roller. Background technique [0002] Grinding rollers are commonly used for crushing materials such as rocks, ores, coal and other raw materials. The known grinding rolls comprise two roll bodies which rotate counter to each other and grind the material located between the grinding rolls. [0003] Heat is generated during the grinding process, in particular at the bearing points of the shafts and on the roller surfaces, which leads to an increase in the temperature of the grinding system and thus requires cooling. Typically, the grinding roller shaft is cooled by a cooling water circuit in the shaft bore, whereby coolant is guided through the bore in the grinding roller shaft. During the operation of known cooling devices, damage often occurs due to deposits and corrosion at the grinding roller shaft and at the cooling device. [0004] ...

AI Technical Summary

Problems solved by technology

This known cooling device for grinding rollers is difficult to manufacture and expensive to produce, and in addition, assembly, especially in a working environment with a small installation space, is expensive

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