Fine sand recycling system and working method thereof

Abstract

The invention relates to a working system for solving a concrete raw material recovery problem, and in particular relates to a fine sand recycling system with high recovery rate and a working method thereof. The recycling system mainly comprises a gravel screening mechanism, a sand washing device, a fine sand deposition recycling device and a waste residue pool, wherein the gravel screening mechanism comprises a movable base, a screening machine frame, a supporting roller, a rolling belt, a first screening layer, a second screening layer, a sand material recycling box and a vibrator; the sandwashing device mainly comprises a vertical support, a wheel-bucket type sand washing machine, a connecting pipe fitting, a sand washing pool and a power device of the sand washing pool; and the fine sand deposition recycling device is installed below the sand washing device, and mainly comprises a fine sand depositing bucket, a leading-out groove, a spiral revolving machine and a galvanized steelpipe. According to the working system and the working method, the components of all the mechanisms are sequentially subjected to works of filtration separation, elutriation separation and rotary separation, so that the recovery rate of fine sand can be improved, the content of fine particles in a sand material is improved, the manufacturing cost of the engineering construction can be reduced, andthe mixability of the concrete is stable and reliable.

Description

technical field [0001] The invention relates to a working system for reclaiming concrete raw materials, in particular to a silt and fine sand recycling system with a high recovery rate and a working method thereof. Background technique [0002] In regional hub ship lock projects, such as the Baishiyao hub ship lock project, the lock walls of the first and second lines of ship locks are dock-type structures, and the total amount of concrete required to manufacture the lock walls exceeds 700,000 m 3 , the amount of sand is about 450,000 m 3 Among them, the production of sand and gravel in the required raw materials needs to be mixed and screened with riverbed dredging materials and excavated materials, but the fine particles of sand in the dredged materials are relatively small, resulting in unstable workability of concrete, and easy pipe plugging during pumping , the smooth pouring of concrete cannot be guaranteed. At present, it is necessary to solve the problem of the bala...

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Problems solved by technology

[0004] In order to solve the above problems, the present invention aims to disclose a working system for reclaiming concrete raw materials, especially a fine sand recycling system with a high recovery rate and its working method, so as to solve the problem of river sand raw materials in ship lock wall concrete. The problem of too few fine particles

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