Novel device and method for separating sand and stone from concrete

Abstract

The invention relates to a novel device and method for separating sand and stone from concrete. The separating device comprises a vehicle washing tank, a vibrating screen, a spiral sand separator, a mortar pool, a water pump and a stirring pool. The device is characterized in that the vehicle washing tank is connected with the vibrating screen; the residual concrete in a stirring vehicle is discharged to be put in the vehicle washing tank, and flows onto the vibrating screen through the vehicle washing tank; the vibrating screen is positioned over the mortar pool; the water pump is placed in the mortar pool; the discharging outlet of the water pump is connected with the spiral sand separator; the water outlet of the spiral sand separator is connected to the stirring pool; a vibrating motor and a screen are arranged on the vibrating screen. According to the separating method disclosed by the invention, through the high-efficiency vibration of the vibrating screen, the sand and the stone in the concrete can be thoroughly separated out, and the separated sand and the separated stone are washed by a high-pressure washing device, so that the low mud containing rate and the low water containing rate of the sand and the stone are guaranteed so as to conform with the standard of sand and stone aggregates for construction concrete; the rest paste can be directly recycled, so that zero discharge of waste residues and waste water in a concrete stirring station is really realized.

Description

technical field [0001] The invention relates to a novel concrete sand-stone separation device and a separation method, in particular to a sand-stone separation device and a separation method for a concrete mixing station. Background technique [0002] Most of the currently used sand and gravel separators are drum screen separators, which mainly separate sand and stones through drum screens, and then transport sand and stones to the two ends of the separator through two reverse spirals for discharge. However, the mud content and water content of the sand and stone separated by the separator of this structure are very high. At the same time, the sand and stone cannot be completely separated. The stone is often wrapped with a large amount of fine sand, which is added to the production of concrete as aggregate. It will seriously affect the quality of concrete. Contents of the invention [0003] In order to better solve the above problems, the present invention provides a new ...

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Problems solved by technology

[0003] In order to better solve the above problems, the present invention provides a new type of concrete sand and gravel separation device and separation method, which solves the problem of high mud and water content of the separated sand and gravel, and at the same time, the sand and gravel are completely separated, and all separated The stones and sand are washed to remove the fine sand and mud wrapped on the surface, so as to ensure that the mud content and water content of the sand are very low, which meets the standards of sand and gravel aggregates for construction concrete. The remaining slurry can be directly recycled. Realize the zero discharge of waste slag and waste water in the concrete mixing plant, and the installation method of the invention is simple in structure and easy to disassemble

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