Jet flow micro-bubble floatation machine

Abstract

The invention relates to a jet flow micro-bubble floatation machine which comprises a rack, a floating cylinder, a pulp distributer mounting rack, a pulp distributer and a micro-bubble mineralization unit, wherein a concentrate overflowing tank is mounted at the upper end of the floating cylinder; at least one concentrate collecting hole is formed in the bottom of the concentrate overflowing tank; an inner cylinder is mounted inside a cone at the lower end part of the floating cylinder; a tailing discharge channel is formed between the inner cylinder and the floating cylinder; a self-adjusted air flow type bubble expelling mechanism is mounted on the pulp distributer mounting rack below the pulp distributer; the self-adjusted air flow type bubble expelling mechanism comprises an air cylinder; the lower end of the air cylinder is an air inlet; an upper cover is mounted at the upper end of the air cylinder in a sealed manner; air outlets are uniformly distributed in the upper cover; the air outlets are respectively connected with air inlet taps on the micro-bubble mineralization unit through pipelines; a central shaft is mounted in an axial direction of the air cylinder inside the air cylinder; axial flow blades are mounted on the central shaft inside the air cylinder; bubble expelling peddles are mounted at an end part of the central shaft; and a gate plate for adjusting the air inlet quantity is mounted at the lower end part of the air cylinder. The jet flow micro-bubble floatation machine has the advantages of being stable in operation, high in floating efficiency, high in floating precision and the like.

Description

technical field [0001] The invention belongs to the technical field of flotation machines, in particular to a jet microbubble flotation machine. Background technique [0002] With the rapid development of the economy, human beings have more and more demands on mineral resources, and as a non-renewable resource, the reserves of mineral resources are decreasing at a rapid rate year by year. Faced with this situation, the development and utilization of lean ore, Tailings are particularly important. In recent years, a lot of research work has been carried out in this area at home and abroad, and some scientific research results have been applied in industrial production, and good economic, environmental and social benefits have been achieved. [0003] Industrially developed countries have taken the degree of comprehensive utilization of tailings as a symbol to measure a country's technological level and economic development. The purpose of its utilization is not only to pursue ...

AI Technical Summary

Problems solved by technology

[0007] Concentrate discharge is the last link to realize flotation separation. In terms of separation methods, flotation machines mostly use edge scrapers to scrape bubbles, and flotation columns mostly use automatic overflow. These separation methods all have a large amount of foam accumulation, The shortcomings of long residence time while waiting for scraping out, large lateral transfer stroke of the foam layer, dead angle, etc., and no active collection of foam concentrate can be considered as extensive concentrate discharge methods.

In addition, due to the strong turbulence of the flotation machine, the entrainment of the foam concentrate is more serious. The traditional flotation machine does not have a spray device for cleaning the foam concentrate, so the grade of the concentrate is poor.

[0008] A micro-bubble flotation machine is disclosed in the prior art, the patent application number is 002072599, and its main structure includes a material inlet, a slurry distributor, an air chamber, a flotation tank, a concentrate tank, a medium tank, and a mineralization unit. , its main feature is that the gas nozzle on the micro-bubble mineralizer connected by the pulp distributor is connected with the air chamber by means of the air guide pipe, so as to realize the mineralization of the pulp; the micro-bubble flotation machine disclosed in this patent is used in the pulp washing process Due to the high pressure of the refle

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