Reaction type annular jetting air sucking stirring type floatation machine with rectifying device

Abstract

The invention belongs to the technical field of mineral separation and particularly relates to a reaction type annular jetting air sucking stirring type floatation machine with a rectifying device. A reaction type annular jetting air sucking mechanism is arranged between a pair of baffles, ore pulp kinetic energy can be sufficiently utilized, nozzle counter force is used for driving an impeller to rotate, jetting flow drives air around an annular jetting pipe, in addition, negative-pressure air sucking is formed under a cover, secondary air sucking is achieved, and air is sufficiently mixed with ore pulp. Meanwhile, a gradually-enlarging rectifying device is erected between the baffles, surface tension of mineralized particles can be effectively overcome, and secondary mineralization and bubble concentration are accelerated. The mineralization process can be better conducted, and therefore the floatation efficiency is improved. An automatic adjusting valve is arranged in a floatation reagent adding pipe, the feeding amount of a floatation reagent can be adjusted according to the fed material jetting speed, energy consumption is reduced, and the reagent use amount is reduced.

Description

technical field [0001] The invention belongs to the technical field of mineral separation, and in particular relates to a counter-attack annular jet suction agitation flotation machine with a rectification device. Background technique [0002] The existence of energy resources in my country determines the dominant position of coal in the energy structure. With the use of coal, there are adverse effects on the environment. Coal is the main source of air pollution in my country, and severe weather conditions such as the greenhouse effect, smog, and acid rain are all closely related to the burning of coal. Therefore, the clean utilization of coal and the improvement of utilization rate are issues that our country needs to pay attention to urgently. However, most of the raw coal mined from underground mines in our country is directly used without washing. This has caused environmental pollution, waste of railway transportation, etc. With the upcoming release of the national ...

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Problems solved by technology

At present, because the commonly used jet flotation machine is not equipped with a stirring device, when the concentration of the pulp is high, it cannot provide enough power to realize the full mixing and dispersion of the pulp, air bubbles, and flotation agents; while the stirring of the mechanical stirring flotation machine The high speed of the device requires high energy consumption, while the low speed cannot form a good flow field and suction volume

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