Quality appraisal of mechanical mineral processing equipment

mechanical mineral processing equipment refers to mechanical equipment used in the mineral processing process to separate useful minerals and gangue (useless minerals) through physical methods. These devices usually utilize the physical property differences between minerals, such as density, magnetism, electrical properties, friction coefficient, etc., to achieve effective separation and enrichment of minerals.
mechanical mineral processing equipment is widely used in mining, metallurgy, chemical industry, building materials and other industries, and is an important tool for the development and utilization of mineral resources. With the advancement of technology, new and efficient mineral processing equipment continue to emerge, providing strong support for improving the utilization efficiency of mineral resources and reducing production costs.
In the case of mechanical mineral processing equipment quality appraisal, Zhongke Testing can provide mechanical mineral processing equipment quality appraisal services.

Mineral processing machinery and equipment are further divided into crushing equipment, grinding equipment, screening machinery and equipment, sorting equipment and dehydration equipment.
The separation equipment includes gravity separation equipment, magnetic separator, flotation machine and special mineral separation equipment.

JB/T 3651-2012 Centrifugal concentrator
GB/T 18152-2000 Mineral processing safety regulations
GB 18452-2001 Crushing equipment safety requirements
GB/T 30751-2014 Building construction machinery and equipment Mobile crusher Safety requirements
GB 25520-2010 Mineral grinding and ultrafine pulverizing equipment Safety requirements
GB 25521-2010 Mining screening equipment Safety requirements
GB/T 18845-2017 Abrasive screening testing machine

A certain mining company plans to expand its production capacity. An equipment company purchased the mineral processing equipment for an ore processing production line that can process 1,000 tons of gold ore per day, and signed the "Industrial and Mining Products Purchase and Sales Contract" and the "Industrial and Mining Products Purchase and Sales Contract (Flotation Machine Supplementary Contract)". After receiving the goods and installing and debugging, a certain mining company discovered that the mechanical mineral processing equipment supplied by a certain equipment company could not be installed normally. Entrusted by the client, we accepted and conducted appraisal and analysis on whether there were quality problems with the mechanical mineral processing equipment involved.
identification and analysis results:
The expert group analyzed the relevant information, on-site investigation and testing results of the "mechanical mineral processing equipment" involved in the case. After discussion, the opinions are as follows:
1) The manufacturing quality of No. 1 vibrating screen in the high-frequency vibrating screen failed in 10 items, and the manufacturing quality of No. 2 vibrating screen failed in 9 items;
2) Spiral separator 8 items of manufacturing quality of grade machine are unqualified; 8 items of manufacturing quality of
3) magnetic separator No. 2 magnetic separator are unqualified; 8 items of manufacturing quality of No. ① magnetic separator of
4) magnetic separator are unqualified. 8 items were unqualified;
5) The manufacturing quality of the No. 5 two-tank flotation machine was unqualified in 8 items, and the manufacturing quality of the No. 8 three-tank flotation machine was unqualified in 9 items;
6) Ball The manufacturing quality of the ball mill failed in 7 items;
7) The manufacturing quality of the ball mill failed in 7 items;
08) The manufacturing quality of the ball mill failed in 9 items; the intersection of the mounting bolt holes of the ball mill liner and the simplified girth weld caused safety risks to the performance of the whole machine; the ball mill is an unqualified product;
19) The manufacturing quality of the crusher failed in 6 items;
210) Jig No. 3 jig failed in 6 manufacturing quality items, No. 5 jig in 6 manufacturing quality items;
311) Hydrocyclone device manufacturing quality failed in 5 items The grid; the pipe inlet of the cyclone device and the rubber lining inlet are misaligned and blocked, the inner overflow pipe opening is not higher than the rubber lining overflow outlet of the upper shell, the structure of the cyclone device cannot meet the usage requirements; the cyclone device is an unqualified product.
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