Brick-concrete building waste treatment technology

Abstract

The invention relates to a brick-concrete building waste treatment technology which comprises the following steps of A, crushing brick-concrete building wastes, and performing sieving to obtain recycled coarse aggregates in a target particle size range; B, removing light matters in the recycled coarse aggregates through a flotation device; C, sorting and removing red bricks in the recycled coarseaggregates through an optical color selector; and D, shaping particles of the recycled coarse aggregates after removal of the red bricks by utilizing a particle shaping machine to obtain a finished recycled coarse aggregate product with a mellow and full particle shape, and removing mortar blocks and aerated blocks in the recycled coarse aggregates at the same time. In the brick-concrete buildingwaste treatment technology provided by the invention, the removal rate of the light matters is 95 percent or above, the removal rate of the low-intensity red bricks is 90 percent or above, removal ofthe low-intensity mortar blocks and aerated blocks can be realized, the high-quality recycled coarse aggregates, approaching natural aggregates, are acquired, breakthrough of the technical barrier ofpopularization and application of the recycled coarse aggregates of the building wastes is facilitated, and comprehensive utilization of building waste resources is promoted.

Description

technical field [0001] The invention relates to the technical field of environmental protection, in particular to a process for treating brick-concrete construction waste. Background technique [0002] In recent centuries, driven by modern new technology, the development of industrialization worldwide has been accelerating, but it has to be admitted that this is at the cost of resource consumption and environmental damage. Land resources are scarce, especially in first-tier cities, so developers have turned their targets to old urban areas. In recent years, large-scale demolition of urban villages has caused a sharp increase in construction waste emissions. [0003] The whereabouts of a huge amount of construction waste has become a common concern of the society. Due to the fact that the old urban area is dominated by brick-concrete structures and social demolition habits, the construction waste has a high content and type of impurities and a high proportion of red bricks....

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a treatment process for brick-concrete construction waste, which solves the problem in the prior art that it is difficult to obtain recycled building material products that can be efficiently used in the treatment of construction waste

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