Coal gangue is an abandoned rock discharged during coal mining and processing. When mining coal, the rock layers or bottom plates from the roof of the coal seam, as well as the various types of rock excavated and blasted from around the coal seam during the excavation are all called coal gangue.

What are the uses of coal gangue?

Energy field Building materials field Engineer packing materials Engineer packing materials Chemical products field Agricultural field

Advantages of roll crusher

It has a simple and compact structure with small occupation and convenient operation and maintenance. The cost is low and the operation is stable, with high energy and crushing efficiency, and adjustable discharge port. It has a light weight, small size, significantly saving investment. The roller crusher is equipped with safety protection devices. When metal pieces enter the crushing chamber, the protective device works and lets the metal leak out of the machine without stopping it. The inside is equipped with dustproof board, which has good sealing performance, avoids splashing of fine materials after crushing, with less dust, low working noise, largely improving the working environment. The gap of the abrasive roller can be adjusted arbitrarily between 1mm and 20mm. After adjusting the roll gap according to the requirements, the crushing particle size can be reliably controlled, and all of them are discharged from the lower part of the crushing cavity with the ideal size. The roller crusher is working in low speed and high pressure with extruding materials which fall vertically into the crushing chamber from the upper part, and are crushed by the strong pressure generated between the two rolls. Most of the material has become powdery, and a large number of cracks have been generated in the interior of the small granular material. Thus, in the further pulverization process, the grinding energy consumption can be greatly reduced and the yield can be increased. The roller crusher is equipped with a replaceable wear-resistant lining plate which adopts domestic advanced technology, and has the advantages of long service life, easy damage and convenient maintenance. The continuous service life can be more than one year, and can be easily changed when the wear is seriously damaged. The maintenance quantity is small and the cost is low, which is unmatched by other types of crushers.

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