Two-stage grinding device

Abstract

The invention provides a two-stage grinding device. The two-stage grinding device comprises a first-stage grinding system for finely grinding mineral materials and a second-stage grinding system for ultrafine grinding of the mineral materials, wherein the first-stage grinding system is serially connected with the second-stage grinding system; the first-stage grinding system comprises a first grinding unit and a first grading unit; and the second-stage grinding system comprises an end plate provided with a through hole, a second grinding unit and a second grading unit. The problems that the quantity of devices is excessive and the system is complex because a current transitional mill is required to be provided with separate grading operation after a grinding operation line, and coarse graded parts are returned to the mill for continuously grinding after grading are solved, the quantity of the devices is greatly reduced, the grinding system is simplified, and the cost, operating chargesand the grinding management difficulty are reduced.

Description

technical field [0001] The invention relates to the technical field of ore grinding, and more specifically, relates to a two-stage ore grinding device for fine grinding-ultrafine grinding of mineral materials. Background technique [0002] At present, my country's metallurgy, mining, ceramics and other industries have all set up grinding industries. Practical problems such as large investment, high power consumption, and large wear have been widely studied. [0003] At present, if traditional mills are used for fine grinding and ultrafine grinding of mineral materials, independent classification operations must be set up after the grinding line, such as screening classification and cyclone classification. Part of it is returned to the mill, and the fine-grained part can meet the particle size requirements as a qualified product. Since the current grinding and grading systems are two independent operations, when multi-stage grinding operations are performed, each stage of th...

AI Technical Summary

Problems solved by technology

[0005] In view of the above problems, the object of the present invention is to provide a two-stage grinding device, especially a fine grinding-ultrafine grinding two-end grinding device to solve the problem that only the Each section of the grinding line is set independently, resulting in too many sets of equipment and complex systems, which not only require high investment and operating costs, but also increase the difficulty of management

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