Mixing plant waste residue processing technique and equipment

Abstract

The invention discloses a waste slag treatment process of a mixing station, which comprises the following process steps: the mixing and conveying vehicle is driven to the car platform of the car wash to clean the residual material in the tank; the cleaned waste concrete is poured into the chute of the feeding device In the process, the waste concrete is pushed into the sand separator by the screw for cleaning and separation; the separated sand is pushed to a high place by the sand lifter and discharged through the sand outlet, and the separated stones are directly discharged through the stone outlet The sewage is discharged into the diversion tank outside the sand and gravel separator through the drain on the frame of the sand and gravel separator, and flows into the slurry tank, and the slurry in the slurry tank is pumped into the filter press by the sewage pump to pressurize Filtration; the present invention enters all waste residues and waste water generated in the production process of the mixing station into the system for treatment, reduces environmental risks, and fully utilizes the remaining ash, slurry water and wastes in the production process, which has broad potential The market prospect is worthy of vigorous promotion.

Description

Technical field [0001] The invention relates to the field of mixing stations, in particular to a process and equipment for treating waste residues of mixing stations. Background technique [0002] During the production and operation of the mixing station, the waste residue and waste water produced mainly come from three aspects: the remaining ash that cannot be adjusted, the flushing slurry water and the dripping waste residue and slurry water generated during the process. According to the national environmental protection requirements for the mixing station industry , Waste water and waste residues shall not be discharged outside and must be fully utilized. At present, almost all mixing plants use residual ash, waste residue, and waste water through a sand-gravel separator, where the sand and gravel are separated and returned to production for reuse. The separated slurry is mixed into the mixer to produce concrete again. However, the separation slurry is rich in cement, fly as...

AI Technical Summary

Problems solved by technology

However, the separated slurry water is rich in cement, fly ash, mineral powder and admixtures, and has been partially hydrated, which is equivalent to increasing the number of ultrafine particles in use, which will increase the amount of admixtures and increase production costs; at the same time, The concentration of separated slurry water is uncontrollable and needs to be used in time, so there is a big quality risk when using it

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