A device and method for multi-bed coupling and interactive hot air flow separation of multi-component mixtures

Abstract

The invention discloses a multi-bed coupling cooperation and interaction type device for separating a multi-component mixture by thermal current, wherein a heterogeneous reducing multi-component mixture is formed from raw materials through a crushing system, and slantwise enters a multi-bed separation unit under the effects of an adjustable drainage plate and auxiliary air; granules are dried by hot air horizontally entering from a dry wind preheating unit, and a horizontal drag force is provided, but heavy coarse granules enter a first bed separation unit under the effect of gravity and are discharged out from the side surface through secondary separation of an inclined fluidized bed; the heavy coarse granules and light coarse granules enter a second bed separation unit under the combined action of horizontal air flow, inclined air flow and gravity, the light coarse granules enter a third bed separation unit through the separation effect of a spouted bed fountain, and heavy fine granules are discharged out from a discharge port on the side surface; and the light fine granules directly enter the third bed separation unit mainly with the effect of the horizontal air flow and are discharged out from a flash gate on the side surface through the floating effect of a fluidized bed, and the light coarse granules are discharged out from the bottom.

Description

technical field [0001] The invention relates to a device and method for multi-bed coupling and interactive hot air flow separation of multi-component mixtures, belonging to the pretreatment field of biomass energy utilization technology and solid waste disposal technology. Background technique [0002] Direct combustion (direct combustion) is currently the most basic utilization method for biomass energy utilization and solid waste disposal. It puts fuel directly into the furnace, and redox reactions occur in a high-temperature environment. The heat released is arranged in the The working fluid in the furnace is absorbed, the solid residue is collected through the slag discharge pipe or dust collector at the bottom of the furnace, and the gas waste is discharged to the atmosphere through the chimney after purification. Through this utilization method, the harmless, reduced, and resourceful treatment of raw materials can be realized. But whether it is for biomass energy util...

AI Technical Summary

Problems solved by technology

However, hydraulic flotation is limited by the density of materials, that is, it can only simply separate materials with a specific gravity greater than water and materials with a specific gravity smaller than water. Moreover, the separation process will greatly increase the humidity of the materials due to immersion in water.

In order to simplify the process and reduce costs, some units use manual sorting to separate impurities, but this will lead to a huge workload, and the efficiency of manual sorting is low, usually only some large impurities can be separated

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