Production method of recycled aggregates of building wastes

Abstract

The invention discloses a production method of recycled aggregates of building wastes. The method comprises the following steps: (a) pre-screening; (b) impurity removal; (c) primary crushing; (d) primary screening; (e) secondary crushing; (f) secondary screening; (g) material division; (h) mixing of the recycled aggregates; (I) homogenization and entrance into warehouse. According to the production method of the recycled aggregates of the building wastes, based on a series of treatment processes, the building wastes are manufactured into engineering dinas (also named as aggregates), so that the problems of land occupation and environment pollution caused by stacking the building wastes are solved, a large quantity of dinas for building engineering can also be provided, and the method is energy-saving and environmentally friendly; meanwhile, the problems of energy sources and environment caused in a manual dinas exploitation process also can be solved. The recycled aggregates produced by using the production method is stable in performance, and can be widely applied to construction of various kinds of building engineering and road engineering.

Description

technical field

[0001] The invention relates to a building material, in particular to a production method of recycled aggregate from construction waste. Background technique

[0002] Common sand and gravel are divided into natural sand and artificial sand, and natural sand is divided into river sand and sea sand. River sand is a non-metallic ore produced by natural stone in a natural state, repeatedly collided and rubbed by water for a long time, so River sand is a short-term non-renewable resource. Due to its good hardness and stable chemical properties, river sand is often used as high-quality building materials and concrete materials, and is widely used in road engineering and construction engineering. At present, due to the large amount of sand used in road and construction projects in many cities, river sand resources are close to or have been exhausted. Some cities use sea sand instead of river sand for road and construction projects. Since the salt and chloride ions...