Water flow bubble sorting method and system of mixed granular materials

Abstract

The invention discloses a water flow bubble sorting method and system of mixed granular materials. The water flow bubble sorting method comprises the steps that the materials are screened according tothe granularity and then enter different ascending water flow bubble columns correspondingly, and sorting adjusting and controlling are conducted by utilizing adjustment of the materials in water gravity and the ascending water flow speed and the adding amount of miniature bubbles. Because the specific gravities of the granular materials are different, meanwhile, a large number of miniature bubbles is injected into the water and adhered to the granular materials, so that the sedimentation rates of the materials are different, the materials which are low in specific gravity float upwards and are taken away by water flow, and the materials which are high in specific gravity sink and bailed out from the lower portion. According to the water flow bubble sorting method and system of the mixedgranular materials, two kinds of or more than two kinds of materials with the specific gravities being different can adopt the water flow bubble sorting method to conduct sorting, according to the treatment capacity per hour, the water flow rate is controlled in real time, the number of the miniature bubbles is adjusted, sorting containers with different sizes are designed, and sorting is conducted. Sorting equipment which is researched and developed based on the water flow bubble sorting method and system is efficient and environmentally friendly, and can save energy sources.

Description

Technical field [0001] The invention relates to the technical fields of mining material sorting, renewable resource sorting and domestic waste cleaning selection, and particularly relates to a water flow bubble mixing sorting method and system for granular materials. Background technique [0002] As general beneficiation operations, there are heavy separation, flotation, electric separation, sorting and chemical separation. Since the present invention is related to re-election and flotation, re-election and flotation are the background technology. [0003] Gravity selection: use the difference in the proportion of mineral raw material particles in the medium (mainly water flow) for selection. There are jig selection, shaker selection, chute selection, etc. Gravity separation is the main beneficiation method for separation of wolframite, cassiterite, placer gold, coarse-grained iron and manganese ores; it is also widely used in separation of rare metal placers. The suitable parti...

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Problems solved by technology

[0005] To sum up the above two sorting methods, a variety of equipment can be applied to mineral sorting, but there are still differences in performance for the sorting of materials in urban mines, such as waste lead-acid battery crushing and sorting plastics, lead grids, etc. ; Sorting plastics and copper from waste copper cables; because some plastics are heavier than water, such as ABS, PC, resin, silicone rubber, etc., the particle size after crushing is 1-60mm, and neither gravity separation nor flotation can be used for separation Thorough and efficient sorting

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