Multi-grade sorting method of ore sand

Abstract

The invention discloses an ore sand multi-grade sorting method. The method comprises the steps that ore sand flows from the top to the bottom of an automatic distribution filter screen a and is scattered around from the top center of the distribution filter screen a in the flowing process, wherein the ore sand with the particle size less than the diameter of filtration pores a falls into a material collection cavity a and flows to a designated location in the guiding direction of a central flow channel; the ore sand continues flowing downwards and falls into a distribution filter screen b fromthe peripheral side edge of the distribution filter screen a, the ore sand received by the distribution filter screen b is gathered to an opening of the lower end of the distribution filter screen bgradually in the guiding direction of the distribution filter screen b, and in the process, the ore sand with the particle size less than the diameter of filtration pores b is filtered out by the distribution filter screen b; the ore sand with the particle size greater than the diameter of the filtration pores b is discharged through the opening of the lower end of the distribution filter screen b. Accordingly, three-grade sorting of ore sand is realized.

Description

technical field [0001] The invention relates to ore sand separation equipment. Background technique [0002] The screening machine is a vibrating screening mechanical equipment that uses the relative movement between the bulk material and the screen surface to make some particles pass through the screen holes, and divide sand, gravel, crushed stone and other materials into different grades according to the particle size. The screening machine for mining includes a frame, a screen set on the frame, and a driving mechanism that drives the screen for vibratory screening. The screen surface of the screen is arranged obliquely, and the materials to be screened are introduced from the higher end of the screen. The screened materials of various particle sizes are discharged from the lower end of the screening machine. [0003] The number of grades that can be sorted by the existing ore separators is small. The reason for the limitation is that, due to structural limitations, the o...

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Problems solved by technology

[0004] In order to solve the deficiencies of the prior art, the purpose of the present invention is to provide a new tower-type ore separation principle, which can solve the problems of the existing ore separation equipment, such as excessive volume and poor separation effect.

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