Two-stage grinding device

A two-stage, two-stage grinding technology, applied in grain processing and other directions, can solve the problems of increasing management difficulty, high investment and operating costs, and excessive equipment, reducing the number of equipment, reducing costs, and simplifying grinding. The effect of the mining system

Pending Publication Date: 2020-11-27
中冶北方(大连)工程技术有限公司
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  • Abstract
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  • Claims
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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

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Example Embodiment

[0042] If the traditional mill is used for fine grinding and ultra-fine grinding of mineral materials, an independent classification operation must be set up after the grinding operation line. After classification, the coarse-grained part is returned to the ultra-fine grinding mill for ultra-fine grinding. Grinding, since the current grinding operation and grading operation are two independent operation systems, when multi-stage grinding operation is carried out, only each grinding operation line can be set independently, which leads to too many equipments and complex system. , not only high investment and operating costs, but also increased the difficulty of management.

[0043] In view of the above problems, the present invention provides a two-stage ore grinding device, and the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0044] In order to illustrate the two-stage grinding device provided by ...

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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...

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Application Information

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IPC IPC(8): B02C17/06B02C17/20B02C17/18B02C17/10B02C23/14B02C23/28B02C23/30
CPCB02C17/06B02C17/10B02C17/185B02C17/1885B02C17/20
Inventor 李国洲李颖繁张宇阳
Owner 中冶北方(大连)工程技术有限公司
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