An integrated flotation equipment for quantitative dosing and reverse stirring center slurry mixing

Abstract

The invention belongs to the technical field of flotation for slurry adjustment of coal slime, and in particular relates to an integrated flotation device for quantitative dosing, reverse stirring and central slurry adjustment. The invention at least includes a flotation cell, a stirring mechanism and a quantitative dosing system; the stirring mechanism is horizontally arranged in pairs in the flotation cell, the surface of the rotating cylinder is provided with a forward-rotating impeller and a reverse-rotating impeller, and a second discharge port is opened on the surface; A feeding pipe is installed inside the barrel, and the first outlet is opened on the lower side of the feeding pipe, and the diverter block is evenly arranged on the inner wall of the feeding pipe; the stirring mechanism can realize cutting, spraying, throwing and stirring four times of mixing and three-phase action There is a certain gap between the drum and the feeding pipe. After the drum rotates at a high speed, a negative pressure suction is formed in the gap, and the air flow is cut and dispersed through the second outlet; The quantitative dosing system can quantitatively add chemicals according to the pulp flow rate; this equipment also includes a circulating foam scraping mechanism to realize foam scraping on the entire tank surface; the present invention has the advantage of not requiring pulp pretreatment equipment.

Description

technical field [0001] The invention belongs to the technical field of flotation for slurry adjustment of coal slime, and in particular relates to an integrated flotation device for quantitative dosing, reverse stirring and central slurry adjustment. Background technique [0002] With the shortage of coal resources in my country and the improvement of coal mining mechanization, the deterioration of coal geological conditions has led to a decrease in the grade of raw coal mined from underground mines. At present, most coal preparation plants adopt dense medium cyclone production process, which increases the amount of secondary slime produced in the washing process and increases the burden on the later stage of slime water treatment; in addition, the current Chinese coal market continues to decline, Under the increasingly difficult situation of on-site production environment, in order to change this status quo, try new technology and speed up the research and development of ne...

AI Technical Summary

Problems solved by technology

From the existing flotation equipment, mechanical agitation and jet flotation machines are used in most coal preparation plants, but both require pulp pretreatment devices and have their own advantages and disadvantages

Images