Fluidized bed sorting experimental machine for arranging semi-automatic lifting device based on secondary bed layer

Abstract

The invention discloses a fluidized bed sorting experimental machine for arranging a semi-automatic lifting device based on a secondary bed layer. The fluidized bed sorting experimental machine mainly comprises a base, an air distribution chamber, an air distribution plate, filter cloth, a fluidized bed body and the secondary bed layer. The fluidized bed body is arranged on the air distribution chamber, the air distribution chamber is arranged on the base, a secondary air distribution plate forming the secondary bed layer is arranged in the fluidized bed body, and a lever mechanism for adjusting and controlling the position of the secondary air distribution plate in the fluidized bed body is arranged. The fluidization effect of medium solids and experiment materials, such as coal, on the upper portion of the secondary bed layer of the fluidized bed body is better through air entering the fluidized bed body, and coal granules and the like are layered in the fluidized bed body according to the density based on the Archimedes principle. The bed layer fluidization and sorting characters in the sorting process can be remarkably improved through the secondary bed layer. Pressure is applied to one end of a horizontal lever, and is transferred to the secondary air distribution plate, and discharging can be more convenient by lifting the secondary air distribution plate.

Description

technical field [0001] The invention relates to a fluidized bed sorting test machine with a semi-automatic material lifting device based on a secondary bed, belongs to the technical field of mineral processing machinery, and is suitable for dry sorting of coal or metal and non-metal minerals. Background technique [0002] Coal has always been one of the most important primary energy sources in the world. As coal is an unclean energy source, its direct use will cause serious environmental pollution and cause inconvenience to resource transportation, processing and utilization. Because dry coal preparation has the outstanding advantage of not using water, especially with the continuous deepening of research on separation technology and fluidization technology, dry coal preparation technology has been continuously developed in recent years. Dry coal preparation is in the critical period of transforming from the laboratory stage to large-scale industrial application. At present,...

AI Technical Summary

Problems solved by technology

However, since the bed density in the dry separation process is easily affected by factors such as wind speed and bed structure, the uniformity and stability of the bed density during actual separation is poor

In addition, during the dry sorting experiment, it is necessary to take out the materials from the smaller experimental device according to the bed height, which is difficult and has a large workload, which is not conducive to the physical and mental health of the experimenters.

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