Tower Screening Method of Ore Sand

Abstract

The invention discloses a tower type screening method for ore sand. The tower type screening method comprises the following steps: S1, an ore sand primary selection process, wherein, the ore sand flows from the top of a material separating filter net a to the bottom of the lower part of the material separating filter net a, and the ore sand with the particle size smaller than the diameter of a filter hole a falls into a material gathering cavity a and moves in the guide direction of a center flow channel, the ore sand continues to flow downwards and falls into a material separating filter netb, and the ore sand with the particle size smaller than the diameter of a filter hole b is filtered by the material separating filter net b, and the ore sand with the particle size larger than diameter the filter holes b is discharged from the opening at the lower end of the material separating filter net b; and S2, an ore sand secondary selection process, wherein, and the ore sand discharged fromthe opening at the lower end of the material separating filter net b flows to the center position of the top of a screening net a, the ore sand with the particle size smaller than the diameter of a filter hole c is filtered by the screening net a and falls into a material gathering cavity b, the ore sand which slides from the periphery of the screening a is received by a screening net b and flowsto a designated position under the guide of the screening net b, in the process, the ore sand with the particle size smaller than the diameter of a filter hole d is filtered out by the screening netb, and the ore sand with the particle size larger than the diameter of the filter hole d is guided to a designated position through an external flow channel.

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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