Authigenic medium vibrated fluidized bed dry separating method and separating machine

Abstract

The invention discloses an authigenic medium vibrated fluidized bed dry separating method and a separating machine and the authigenic medium vibrated fluidized bed dry separating method and the separating machine are suitable to dry separation of coal, ore and other materials. An authigenic medium is formed in a vibrated fluidized bed through separation and feeding, layering in accordance with density is achieved, fluidization of materials is achieved under the cooperative action of updraft and vibration force, materials of high density are discharged from a separating bed continuously, the separation load is reduced, external medium solid is not used, and the separation is achieved through a medium bed with certain density, which is formed in fluidization of feeding particles. The separating machine comprises the separating bed, an air distributing chamber, a discharging device, an overflowing adjustor, a dust removing and air inducing cover, an excitation motor, a spring and a rack. Three separation sections are used, the separation of heave products and light products of three different density is achieved, the medium solid is not used, the separation cost is low, no embedded chain type discharging device is required, materials are conveyed through vibration, fluidized bed flow and bed inclined angle change, the structure is simple, the operation is stable and the reliability is high.

Description

Technical field: [0001] The invention relates to a dry sorting method and a sorting machine, in particular to a vibrating fluidized bed dry sorting method and a sorting machine suitable for sorting coal, ore and other materials based on self-generated media. Background technique: [0002] At present, the dry separation equipment mainly includes air jigging separator, compound dry separation machine and air heavy medium fluidized bed dry separation machine. The air jigging separator feeds the pulsating air flow into the lower part of the air distribution plate to form a variable speed medium flow, and the sorted materials are periodically dispersed and settled in the variable speed medium flow, and the density as the dominant factor is completed within a certain period of time. Stratified to achieve sorting. However, the medium pulsation will cause large fluctuations in the bed, and the self-generated medium layer of the material is very thin, which cannot form a large eno...

AI Technical Summary

Problems solved by technology

But it has the following deficiencies: First, the qualified magnetite powder it uses is narrow in particle size, difficult to process, and the recovery and purification of aggravated quality increases infrastructure costs and operating costs. Due to the limitation of the separation process, the medium consumption is large and the separation cost is high; the second is that the separation system is complicated, and the stability of the separation density is high; the third is that the built-in chain scraper conveying mechanism is easy to cause wind distribution The plate blocks the hole, and the separation effect is not good for fine-grained materials

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