Composite sandstone powder concentrator

Abstract

The invention relates to a composite sandstone powder concentrator. The composite sandstone powder concentrator comprises a fan, a V-shaped separation device, a medium sand conical hopper, a cage rotor, a fine sand conical hopper and a cyclone separator, wherein a feeding port of the V-shaped separation device is obliquely communicated with a distribution device; multiple stages of scattering blocks with the number of the scattering blocks being increased stage by stage are arranged on one side of the interior of the distribution device; deflection blades capable of being adjusted in a deflection mode are arranged at the ends of first fixed scattering blades of the V-shaped separation device; telescopic blades capable of being adjusted in a parallel front-back displacement mode are arranged on the side portions of second fixed scattering blades of the V-shaped separation device; and a discharging port is communicated with the bottom of the medium sand conical hopper and provided with amaterial segregation device. Coarse sand, medium sand, fine sand and powder in sandstone are separated and collected in an environment-friendly manner by adopting composite powder separation, the distribution device scatters materials to form a uniform material curtain, and sand molds with different particle sizes and specified gradings in machine-made sand are accurately separated out by adjusting and controlling the movement time and stroke of the materials in the powder concentrator, so that accurate grading meeting specified requirements is achieved, the treatment capacity can be remarkably increased, and the separation efficiency and effect of a composite sandstone separator are improved.

Description

technical field [0001] The invention relates to a composite sand and gravel powder separator, which belongs to the technical field of sand making and powder separator equipment. Background technique [0002] As aggregate, sand and gravel account for a large proportion of concrete and are important building materials. They are widely used in houses, roads, bridges, engineering and other fields. After being made into a certain diameter of sand and gravel raw materials, the content of stone powder below 0.075 / 0.16mm in the crushed sand and gravel aggregates on site accounts for 20-30%, which affects the strength and quality of the aggregate sand. Environmental pollution and resource waste. After sand making, it needs to be transported into the sand and gravel separator through a belt conveyor. The wind separation removes the mud powder and stone powder on the surface of the sand to fully clean the sand and gravel, and obtain qualified graded raw materials and collect and use th...

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Problems solved by technology

[0004] However, there are still the following problems: (1) The feeding port of the powder separator is not fully dispersed, and the raw materials are agglomerated, resulting in uneven feeding and low classification efficiency of the powder separator; (2) Coarse sand and When sorting the medium sand, a fixed breaking plate mechanism is used to keep the material in the V-shaped area for a short time, and only by adjusting the size of the damper can not achieve the specified accurate classification; (3) The falling gradation of coarse sand and medium sand cannot be adjusted At the same time, the suction direction of fine sand sorting and the limitation of the shell are not conducive to the settlement and separation of medium sand, which will reduce the sorting efficiency and effect of the sand sorting system. It is not suitable for processing a large amount of sand and gravel ≥ 500T / H. The material situation and customer needs

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