Production and preparation method of lightweight aggregate

Abstract

The invention relates to the technical field of aggregate production, in particular to a production and preparation method of lightweight aggregate. The production and preparation of the lightweight aggregate are completed through cooperation of a shaking device, a protection plate, a screening device, a grinding device, an extrusion device and a feeding leakage cover. The method of the invention can solve the problems that in an existing shale raw material treatment process, crushing efficiency is low due to the fact that shale particles are large, the crushing efficiency of the shale is easily affected due to the fact that the shale is easily stacked together during feeding, the crushed shale raw materials need to be screened after being crushed, the shale raw materials are prone to being stacked together to cause incomplete screening in a screening process, a part of particles are consistent with screening meshes in size and easily leads to blockage of the meshes, and the screening effect of the follow-up shale raw materials is affected. The crushing treatment effect of the shale raw materials is improved in the invention.

Description

technical field [0001] The invention relates to the technical field of aggregate production, in particular to a production and preparation method of lightweight aggregate. Background technique [0002] Lightweight aggregate is made of light coarse aggregate, light fine aggregate or ordinary fine aggregate, cement, water, admixtures and admixtures. It can be used as concrete, and its apparent density is not more than 1950kg / m3. It is often named after the type of lightweight aggregate used, such as pumice concrete, fly ash ceramsite concrete, clay ceramsite concrete, shale ceramsite concrete, expanded perlite concrete, etc. Lightweight aggregates include natural lightweight aggregates: pumice, volcanic slag; industrial waste: fly ash ceramsite, expanded slag beads; artificial lightweight aggregates: shale ceramsite, clay ceramsite, expanded perlite. For some artificial lightweight aggregates, such as shale ceramsite, during the production and preparation process, it is neces...

AI Technical Summary

Problems solved by technology

[0003] At present, there are mainly the following problems in the process of processing shale raw materials: when preparing large shale particles into small particles, shale is usually directly crushed. Due to the large shale particles, the crushing efficiency is low, and the shale When the rocks are fed, they are easy to pile up together, which is easy to affect the crushing efficiency of shale rocks. After the shale rock raw materials are crushed, it is necessary to screen the crushed shale rock raw materials. During the screening process, the shale rocks The rock materials are easy to pile up, resulting in incomplete screening, and some particles are consistent with the mesh size of the screen, which is easy to block the mesh and affect the screening effect of subsequent shale rock materials.

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