Control method and system for wind separation

Abstract

The invention provides a control method and system for wind sorting, including: acquiring the density and particle size of magnetic tracers in a tracer recovery device corresponding to each type of product obtained by sorting; wherein, the magnetic tracer is a Magnets and polyurethane are synthesized in a preset ratio; calculate the proportion of high-density magnetic tracers in the tracer recovery device corresponding to each type of product; calculate the number of the first high-density magnetic tracer and the second high-density magnetic tracer The first ratio of the number of high-density magnetic tracers in each type of product, the first ratio and the preset threshold corresponding to each type of product are compared, and based on the comparison result, the sorting equipment is reduced. Wind speed and / or increase the discharge volume of the discharge port corresponding to each type of product. The invention can intelligently adjust the discharge volume and the air volume, thereby improving the sorting quality.

Description

technical field [0001] The invention relates to the technical field of wind separation, in particular to a control method and system for wind separation. Background technique [0002] Pneumatic coal separation (wind shaker, air jig and ladder separator, etc.) belongs to the category of dry gravity beneficiation, but its separation process is different from the wet gravity beneficiation method. The existing inclined wheel, vertical wheel, Shallow trough, gas-solid fluidized bed and other gravity separation equipment, after the material to be selected enters the separation equipment, the light material and heavy material run in different directions in the medium inside the equipment according to the different gravity, and achieve effective separation, Influenced by the density of the medium, the above methods cannot realize the separation of high-density materials, and the separation process requires water or medium, and the system is very complicated. [0003] Compared with ...

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Problems solved by technology

[0002] Wind coal preparation (wind shaker, air jigging and cascade separator, etc.) belongs to the category of dry gravity beneficiation, but its separation process is different from wet gravity beneficiation methods. The existing inclined wheels, vertical wheels, Gravity separation equipment such as shallow tanks and gas-solid fluidized beds, after the materials to be selected enter the separation equipment, light materials and heavy materials run in different directions in the medium inside the equipment according to different gravity, and achieve effective separation. Due to the influence of medium density, the above methods cannot achieve high-density material separation, and water or media are required during the separation process, and the system is very complicated

[0003] The separation principle of dry separation is more complicated than that of wet separation, and the requirements for product intelligence are also higher. machine, etc.) according to density-dominated layering, and the particle size and shape of the material will also interfere with the density-based layering behavior of the material, and after the material to be selected is layered according to the density-dominated layer in the height direction, the light and heavy material layers will be completely pasted. and with the change of the feeding properties, the height of the light-heavy material layer interface also fluctuates, it is difficult to feedback the numerical change of the cutting component through the detection of equipment parameters inside the equipment, and then it is impossible to realize intelligent detection, control and adjustment upgrade

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