A complete set of flotation equipment

Abstract

The invention discloses a high-speed shearing emulsification device and a complete set of flotation equipment. The high-speed shearing emulsification device includes: an emulsification tank; a medicament nozzle installed on the top of the emulsification tank and connected with a water flow ejection pipe; a fixed tooth plate and the rotating toothed plate, the rotating toothed plate is arranged opposite to the fixed toothed plate, and a zigzag shear flow channel is arranged between them; the motor is connected to the bottom end of the rotating toothed plate through a transmission shaft. Driven by the motor, the rotating toothed disc rotates at high speed, and the mixture of collector and water is sheared at high speed in the zigzag shear flow channel for full mixing and emulsification. The structure is simple, the emulsification effect is good, and the complete set of flotation equipment will The integration of jet atomization device, high-speed shear emulsification device and double-wheel jet mixing mechanism not only reduces the equipment volume and floor space, but also reduces the energy consumption of slurry pumping and improves the mineral separation efficiency.

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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