A rotary atomization device and complete set of flotation equipment

Abstract

The invention discloses a rotary atomization device and a complete set of flotation equipment. The rotary atomization device comprises: a medicament storage cylinder, a conical flow guide cover, an atomization turntable, a flow guide cover chassis and a driving part, and a conical flow guide cover The small head end is fixed to the lower end of the drug storage cylinder; the atomization turntable has an atomization outlet on the outer edge of the bottom end, and an atomization outlet channel is formed between the chassis of the shroud and the atomization turntable, and the atomization outlet channel corresponds to the inner side of the atomization turntable. Atomization outlet and connected. The driving part drives the rotating shaft to drive the atomization turntable to rotate at a high speed, so that the foaming agent in the atomization turntable is fully atomized under the action of high-speed centrifugation, forming a stable microbubble system, ensuring that the foaming agent can fully mix with the minerals to be flotation mix. And the flotation complete set of equipment integrates the rotary atomization device, the high-speed shear emulsification device and the double-wheel jet mixing mechanism, which not only greatly reduces the equipment volume and floor space, but also reduces the energy consumption of pulp pumping, and at the same time improves the efficiency of mineral separation.

Description

technical field [0001] The invention relates to the technical field of mineral separation equipment, and more specifically relates to a rotary atomization device and a complete set of flotation equipment. Background technique [0002] In the process of mineral separation, flotation is the first choice for the separation of fine-grained coal. At present, the mainstream flotation devices mainly include mechanical agitation flotation machines, jet flotation machines, flotation columns, etc. Previously, it was usually equipped with auxiliary pretreatment devices such as pulp preprocessor, flotation agent addition equipment, and agent emulsification equipment, and the auxiliary pretreatment device was very important for efficient flotation of ore pulp. [0003] However, for the current flotation device and auxiliary pretreatment device, they are usually separated in practical application, occupy a large area and the transportation of ore slurry is usually pumped, so that after ea...

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Problems solved by technology

[0003] However, for the current flotation device and auxiliary pretreatment device, they are usually separated in practical application, occupy a large area and the transportation of ore slurry is usually pumped, so that after each stage of pumping, the flotation device There is a huge energy loss in the auxiliary device and the auxiliary device. For example, after the pulp is sent to the pretreatment device, the energy carried by the pulp is attenuated to zero, and the pulp pretreatment equipment, chemical addition equipment, etc. are running themselves and pumping materials to the flotation machine. All consume a lot of energy and the equipment will occupy a lot of plant area, and the cost of equipment and infrastructure is high

[0004] For improving the flotation efficiency, the addition method of the agent will greatly affect the mineralization system of the bubbles, and then affect the emergence efficiency. Currently, the commonly used flotation agents are mainly foaming agents and collectors. For the foaming agent, It is mainly to change the surface tension of the gas-liquid interface. The addition of the existing foaming agent is mainly to put it directly into the pulp during the flotation process of the flotation machine for stirring. The foaming agent cannot be fully dispersed, and the microbubbles formed The system is unstable, and its effect cannot be better and more uniformly mixed with the minerals to be flotation, and the flotation effect is poor; for collectors, it mainly changes the hydrophobicity of the mineral surface, so that the floating ore particles can effectively adhere to the air bubbles In the process of adding existing collectors, it is usually added directly, or added after a certain emulsification, and the collector after emulsification is more effective than direct addition in terms of reducing chemical consumption and improving flotation efficiency. However, there are still phenomena such as complex structure, poor emulsification effect, and occupation of plant area.

[0005] At the same time, in the flotation stage, 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 mechanical stirring type The high speed of the stirring device of the flotation machine requires high energy consumption, and the low speed cannot form a good flow field and suction capacity. For the new jet stirring flotation machine, the speed usually occurs during the rotation of the driving impeller. Unstable, poor pulp pretreatment effect, etc.

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