Vertical vortex powder selector adopting lateral air feeding, powder selection method implemented by vertical vortex powder selector, and application of vertical vortex powder selector

Abstract

The invention belongs to the technical fields of powder grinding and powder selection, and discloses a vertical vortex powder selector adopting lateral air feeding, a powder selection method implemented by the vertical vortex powder selector, and application of the vertical vortex powder selector. The vertical vortex powder selector comprises an upper vortex casing and a lower conical casing, wherein the vortex casing is horizontally arranged, and an open end of the vortex casing is provided with an air inlet; an air outlet is formed in the upper part of the vortex casing and connected with adust collection device; a cage rotor is arranged in the vortex casing, and the air outlet is formed above the cage rotor; a driving device is arranged above the vortex casing and connected with the cage rotor; air guiding blades are circumferentially arranged on the outer side of the cage rotor; a casing-shaped lower cone is arranged in the conical casing and placed right below the cage rotor; a medium and coarse powder discharging chute is communicated with the lower end of the lower cone, and the tail end of the medium and coarse powder discharging chute extends downwardly to the outside ofthe conical casing; and a coarse powder discharging chute is communicated with the lower end of the conical casing. The powder selector provided by the invention has the advantages of high reasonability in structure, high reliability in operation, less abrasion, high efficiency and low energy consumption.

Description

technical field [0001] The invention belongs to the technical field of grinding and powder selection, and in particular relates to a side-entry vertical eddy current powder separator, a powder selection method and its application. Background technique [0002] The powder separator is one of the key equipment of the grinding system. It is widely used in cement and electric power industries. The powder separator usually uses the different force conditions of the particles of different particle sizes in the air medium to separate the material particles. Performance directly affects the energy consumption and production capacity of the entire grinding system. At present, the most widely used high-efficiency powder separator at home and abroad is mainly the cage rotor powder separator, which uses the balance of the three forces of gas carrying force, material self-weight and rotor centrifugal force to separate materials. The cage rotor powder separator is widely used in the worl...

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Problems solved by technology

There is an unavoidable problem of uneven feeding in the upper part of the feed, and it needs to be equipped with material lifting equipment, which will also cause serious wear and tear on the structure of the powder separator; The lifting height of large-scale equipment is significantly increased, and a large amount of material is lifted by the airflow, which not only significantly increases the energy consumption of the system, but also causes serious erosion and wear to the internal components of the powder classifier, affecting the stability of the system operation and the service life of the equipment.

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