Concrete production waste treatment and regeneration process

Through the dry treatment process, the concrete production waste is wrapped and cleaned by using coarse aggregate and fine aggregate, and the problems of large water consumption and high sludge content in the existing technology are solved, and low-cost and environmentally friendly waste regeneration treatment is achieved. The obtained aggregate and active powder are suitable for reuse.

CN119707339AActive Publication Date: 2025-03-28CCCC SHEC FOURTH ENG +2
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Patent Information

Application Number
CN202411572439.1
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-11-06
Publication Date
2025-03-28
Estimated Expiration
2044-11-06

AI Technical Summary

Technical Problem

The prior art uses large water consumption, complex water treatment process, difficult and cost when processing concrete production waste, and the gravel aggregate has high sludge content and high moisture content after treatment, which affects its reuse.

Method used

By adopting a dry treatment process, dry and clean aggregate is obtained by adding coarse aggregate and fine aggregate to the concrete production and transportation equipment for mixing, covering and cleaning the concrete waste on the equipment, and then drying, shelling and screening treatment.

Benefits of technology

It realizes waste treatment without tailwater treatment, reduces comprehensive treatment costs, reduces environmental pollution, retains gelling activity, and is easier to reuse in the active micro powder, and has a stable moisture content of the aggregate, which is suitable for re-production of concrete.

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Abstract

The invention discloses a concrete production waste treatment and regeneration process which comprises the following steps: S1, adding coarse aggregate into concrete production and transportation equipment, stirring and mixing, and after stirring is finished, pouring out the coarse aggregate wrapped with concrete production waste from an outlet of the concrete production and transportation equipment; s2, adding fine aggregate into the concrete production transportation equipment, stirring and mixing, and after stirring is finished, pouring out the fine aggregate wrapped with the concrete production waste from an outlet of the concrete production transportation equipment; s3, drying the coarse aggregate obtained in the S1 and the fine aggregate obtained in the S2, and mixing to obtain a dried clean material; s4, the dried cleaning material is subjected to shelling treatment; according to the method, dry treatment is adopted, the water content of aggregate is stable, concrete can be produced again, tail water treatment is not needed, the comprehensive treatment cost is lower, and environmental pollution is small.
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