Multi-product multistage grader

Abstract

The invention discloses a multi-product multistage grader. The multi-product multistage grader comprises a machine shell. The machine shell is provided with a feeding inlet and an air inlet, wherein the air inlet is formed in the direction of the feeding inlet and used for providing air inlet airflow to blow materials. The machine shell comprises a plurality of material separation units sequentially arranged in the air inlet direction of the air inlet. An airflow penetrating channel penetrating through all the material separation units is formed in the extension direction, facing the interior of the machine shell, of the air inlet. The material separation unit, away from one end of the air inlet, is a selecting shell body. The part, intersected with the airflow penetrating channel, of an inner cavity of the selecting shell body is provided with a cyclone grading mechanism which is used for conducting centrifugal separation through rotating, changing the direction of the air inlet airflow and disturbing the air inlet airflow so that materials carried by the air inlet airflow can collide with each other and can be scattered and separated. The bottom of the selecting shell body is provided with a fine grain outlet used for discharging fine-grain materials. The output end of the cyclone grading mechanism is provided with a fine powder outlet used for discharging materials in fine powder shapes. The multi-product multistage grader is suitable for multistage grading of various ore fine-grain materials.

Description

technical field [0001] The invention relates to the technical field of material particle classification equipment, in particular to a multi-product multi-stage classifier. Background technique [0002] In the existing particle material classification technology, the sieving machine can classify a dry material with different particle sizes into materials of different particle sizes, but the screening efficiency of the sieving machine for fine-grained materials is very low; For the air classifier of fine powder products, its classification efficiency is better, but it is difficult to separate products with two or more particle sizes and have high classification efficiency. [0003] If you want to classify a product with a small particle size, and another or two or more products with a coarser particle size, for example, a product that is classified into fine powder and a product with coarser particles at the same time, For example, 0.4mm products, 1mm products or 2mm products...

AI Technical Summary

Problems solved by technology

[0007] The present invention provides a multi-product and multi-stage classifier to solve the classification of materials and particles, which needs to be implemented by using various types of classification equipment, resulting in complex processes, large investment, high power consumption, many supporting equipment, and high operating failure rate. technical problem

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