Gravel-sand mixture and sand processing plants

In the gravel-sand mixture and sand processing plants, along with the products listed for gravel and sand processing include sand enriched with a module size of 2.5 and a more complete residue on sieve № 063 up to 70%, as well as graded sand with grain size 0.16 ... 0.63 (1.25) mm and 0.63 (1.25) to 5 mm.

Feature of the technology for the processing of rock, supplied as slurry, for example, from the dredge, it is a preliminary separation (typically in tapered hydro-screen) into two streams: sand and gravel, then processed separately.

Accordingly, the factories produce gravel-gravel and sand line, consisting of nodes and units of hydraulic and conveyor interdepartmental transport. The blocks are called in accordance with the ongoing technological operations in them. Gravel and crushed stone line can consist of parts: pre-separation, screening gravel, primary crushing, secondary and tertiary crushing, screening and gravel from the gravel. Sand line usually includes blocks hydro-classification, thickening and dewatering.

Machines for processing of gravel and sand mixtures

The unit consists of a feeder with a hopper, jaw crusher, conveyors, separators, and is designed for processing the stone and concrete elements of house demolitions in obtaining unsorted gravel and separation of metallic elements.

In addition, the hydraulic jaw crusher PEW can be used as the primary unit for the processing of gravel-sand mixtures containing sand and gravel fines no more than 10-20%, and natural stone, if the original product contains a sufficiently large number of fines or inclusions.

Downloading of the unit carried out by loader or excavator. The source material is fed to screens, where material is screened into fine fractions. Not passed through the fly screen material comes in a jaw crusher, discharge is carried out with the integrated pipeline. Fines from the screen removed the side conveyor. The unit is easily transported and does not require building a strong foundation.

To install it, enough concrete slabs, flat concreted or paved area, which significantly reduces installation costs and speeds up the introduction of a machine in operation. Actual performance of the unit PEW jaw crusher differs depending on the size of the discharge opening is part of the unit and can vary from 30 to 1000 tons/ hour.

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