Liquid-solid fluidization separation system

Abstract

The invention discloses a liquid-solid fluidization separation system. The liquid-solid fluidization separation system comprises a bed body which is arranged in an inclined way, wherein a water outlet pipe and a water inlet pipe are arranged on the top and at the bottom of the bed body respectively; a discharge port and a feed port are formed on the bed body on the lower side of the water outlet pipe and on the bed body on the upper side of the water inlet pipe respectively; the diameter of the bed body gradually becomes larger from the bottom up; a water power distributing plate is arranged inside the bed body between the water inlet pipe and the feed port; a plurality of through holes are uniformly distributed on the water power distributing plate; and a fluid pipe is arranged on a downwards inclining wall surface of the bed body between the discharge port and the feed port. Due to diameter-variable design of the bed body, the flow rate of water gradually decreases along with the increase of the pipe diameter, and grains are always in a speed-variable motion state in a diameter-variable and speed-variable flow field, so that a wide-grain size multi-component material can be effectively separated according to the density; and through introduction of air flow or water flow into a separation device, the material accumulating on the wall surface looses again along with the air flow and reenters the diameter-variable and speed-variable flow field for secondary separation, thus greatly improving the separation effect.

Description

technical field [0001] The invention relates to the fields of agricultural production, mineral processing, solid waste sorting, and material separation and recovery, in particular a liquid-solid fluidized sorting system capable of effectively sorting wide-grained and multi-component materials according to density. Background technique [0002] Particle sorting by density is widely used in mining, agriculture, solid waste separation and other fields. For gravity separation devices using water as the medium, the final settling velocity of the separated components is the main factor determining the separation efficiency. The final sedimentation velocity of the particles is related to the particle size, shape and density, so there are many factors affecting the separation, and the application of traditional separation devices has certain limitations. In order to improve the sorting efficiency, first of all, the density difference of the sorted materials is required to be large,...

AI Technical Summary

Problems solved by technology

Due to the large difference in particle size and shape of the actual sorted materials, the final settlement velocities of the concentrate and tailings often overlap with each other, resulting in the low sorting efficiency of most existing gravity separation devices using water as the medium, which cannot Achieve efficient density-driven separations

At the same time, for the traditional inclined gravity sorting equipment, due to the inclined bed surface, the material will accumulate along the bed surface during the sorting process, resulting in problems such as difficult discharge and incomplete sorting. The problem of low efficiency

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