Equipment system for preparing sand, stone and high-calcium aluminum silicate material by utilizing construction wastes

Abstract

The invention provides an equipment system for preparing a sand, stone and high-calcium aluminum silicate material by utilizing construction wastes. The equipment system comprises a disintegration andmaterial repairing device of construction waste granular material, wherein the disintegration and material repairing device is used for forcing collision and grinding to be generated between construction waste grain surfaces and between the construction waste grain surface and a wear-resisting device wall and / or a grate plate and / or a screen mesh to disintegrate and remove soft tissues, fine scraps with sharp edges and corners and crack defects on the construction waste grain surfaces and finally disintegrating construction waste grains into three components including sand grains, stone grains and high-calcium aluminum silicate fine scraps. According tot eh equipment system provided by the invention, a technological process and equipment are simple, small in occupied land, small in investment and effective and efficient disintegration and separation and resource utilization of the construction wastes is facilitated; a social ecological environment and a natural environment are easy toprotect and the employment opportunities are easy to increase; and the problem that the source of admixtures of a cement enterprise is short is solved to a certain extent.

Description

technical field [0001] The invention relates to the technical field of environmental protection equipment, in particular to an equipment system for producing sand, stone and high-calcium aluminosilicate materials using construction waste. Background technique [0002] As we all know, inorganic building materials, especially concrete, mortar, and cement bricks that are widely used, are mainly composed of cement cementitious materials, sand materials, and / or stone materials. Composite building materials together. The scale of my country's infrastructure is huge, and the huge amount of construction projects across the country requires a large amount of sand, stone and cement raw materials. The mining and supply of sand and stone raw materials required by the huge infrastructure scale will continue to have an irreversible impact on the environment; at the same time, The production of a large amount of cement needed for engineering construction continues to consume high energy co...

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Problems solved by technology

[0006] CN200510136624.7 Waste concrete activation regeneration cement technology, CN201510399575.X method of processing waste concrete with rotary kiln to make active slag powder and active aggregate, CN201510399659.3 A method of using shaft kiln to process waste concrete to make active slag powder and aggregate method, CN201510399419.3 a method for making ecological cement and activated sand from waste concrete and sludge, and CN201520493211.3 a system for making active slag powder and aggregate from waste concrete, which provides an industrial kiln for crushing the broken particles Material heat treatment, dehydration, loosening or decomposition of the cement gelling components that bind the sand and gravel together, and then use a ball mill to remove the structural defects such as cement minerals and soft tissues on the surface of the sand and gravel particles, and then separate to obtain recycled aggregate sand Although the above-mentioned method can obtain high-quality recycled sand, stone aggregates and activated cement stone materials, there are the following problems: one needs to carry out heat treatment, consumes fuel, and the combustion of fuel and the decomposition of limestone aggregates produce air pollution and a large amount of Second, it needs to be ground by a ball mill with high energy consumption and low heat rate, which has high power consumption, low efficiency, and produces secondary pollution; moreover, the investment is relatively large, and it is not suitable for waste concrete with a large amount and a wide area. Low investment, low cost local centralized processing

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