High-speed shearing emulsification device and flotation complete equipment

Abstract

The invention discloses a high-speed shearing emulsification device and flotation complete equipment. The high-speed shearing emulsification device comprises an emulsifying tank, a medicament spray head, a rotary fluted disc and a fixed fluted disc; the medicament spray head is mounted at the top end of the emulsifying tank and is connected with a water flow injection pipe; the rotary fluted discand the fixed fluted disc are oppositely arranged; a sawtooth-shaped shearing flow channel is formed between the rotary fluted disc and the fixed fluted disc; a motor is connected with the bottom endof the rotary fluted disc through a transmission shaft; the rotary fluted disc is driven by the motor to rotate at a high speed; a mixed solution of a collecting agent and water is sheared at a high speed in the sawtooth-shaped shearing flow channel to be fully mixed and emulsified. The flotation complete equipment is simple in structure and good in emulsification effect; the flotation complete equipment integrates an injection atomization device, the high-speed shearing emulsification device and a double-connection-wheel jet agitation mechanism, and therefore, the size of the equipment is greatly reduced, area occupied by the equipment is greatly reduced, the energy consumption of ore pulp pumping is reduced, and meanwhile, mineral separation efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of mineral separation equipment, in particular to a high-speed shear emulsification 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 each ...

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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 bubble mineralization system, and then affect the flotation efficiency. Currently, the commonly used flotation agents are mainly foaming agents and collectors. For foaming agents , mainly to change the surface tension of the gas-liquid interface. The addition of the existing foaming agent is mainly added during the flotation process of the flotation machine. Due to the inability to add uniformly and effectively act on the gas-liquid interface, resulting in a large amount of agents Waste, and cannot be quantitatively controlled to affect flotation efficiency, and the phenomenon of "running away" occurs; for collectors, it mainly changes the hydrophobicity of mineral surfaces so that floating mineral particles can effectively adhere to air bubbles. Existing collectors In the process of adding, 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, but there are still complex structures, emulsification Poor effect, occupying plant area, etc.

[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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