Crushing process of intelligent and efficient crushing and shaping system in fine crushing workshop in sand and gravel processing plant

Abstract

The invention discloses a crushing process of an intelligent and high-efficiency crushing and shaping system in a fine crushing workshop in a sand and gravel processing plant, comprising: a first sieve; type crusher; and the second screen machine corresponding to the contact with the <80mm gravel outlet of the first screen machine through the conveyor belt machine; the second screen machine corresponding to the contact with the 80‑40mm sand gravel outlet of the second screen machine Cone Crusher. The fine particles effectively fill the gap between the coarse particles in the crushing cavity, and can effectively form the multi-grain grade optimization combination mixed filling extrusion friction effect to avoid the phenomenon of scaffolding. The better the feed particle size is, the lower the needle flake content is. , the main reason is that after the optimized combination of multi-grain levels, the mineral materials in the crushing wall are relatively dense, and driven by the moving cone of the crusher, it can effectively form multi-point extrusion and grinding between the mineral materials, and the structure is poorly stressed. Shaped mineral materials will be crushed first, so the combination of mineral material flash and needle flakes can be effectively crushed to achieve plastic crushing.

Description

technical field [0001] The invention relates to an intelligent and high-efficiency crushing and shaping system and a crushing process of a fine crushing workshop in a sandstone processing plant, belonging to the technical field of mechanism sandstone production. Background technique [0002] Sand and gravel are important materials for infrastructure construction. As the available mining volume of natural sand and gravel decreases year by year, the use of machine-made sand and gravel to replace natural sand and gravel will be the future trend of infrastructure construction. Coarse crushing, crushing and shaping, the sand after coarse crushing is screened by the screening machine and then enters the cone crusher for secondary crushing and shaping. problems, resulting in a reduction in the production efficiency of sand and gravel. Contents of the invention [0003] In order to solve the above technical problems, the present invention provides an intelligent and efficient cru...

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Problems solved by technology

[0002] Sand and gravel are important materials for infrastructure construction. As the available mining volume of natural sand and gravel decreases year by year, the use of machine-made sand and gravel to replace natural sand and gravel will be the future trend of infrastructure construction. Coarse crushing, crushing and shaping, the sand after coarse crushing is screened by the screening machine and then enters the cone crusher for secondary crushing and shaping. problems, resulting in a reduction in the production efficiency of sand and gravel

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