Powder concentrator integrating functions of scattering, drying and grading into whole

Abstract

The invention relates to a powder concentrator integrating the functions of scattering, drying and grading into a whole, which mainly comprises a drying area casing, a scattering area casing, a raw material splitting tube, a splitting device, a volute body, a grading rotor, a main shaft and a main bearing bracket. The powder concentrator is characterized in that the drying area casing is in a V-shaped structure, one side of the drying area casing is joined with the volute body, the upper part of the other side of the drying area casing is connected with the scattering area casing which is slantways arranged, and the upper part of the scattering area casing is connected with the raw material splitting tube in which the splitting device is arranged. An eccentric position in the volute body is vertically provided with the grading rotor which is in a conical structure, and a cantilever of the main shaft of the grading rotor is supported on a bearing pedestal on the main bearing bracket. The invention has the advantages of good material adaptability, strong drying and scattering capabilities, high powder concentration efficiency, low pressure loss of a system, small maintenance quantity of equipment, compact and reasonable structure, large adaptability to materials and the like.

Description

technical field [0001] The invention belongs to the technical field of powder selection in the cement industry, and in particular relates to a collection and dispersal, drying and separation process mainly used in the dispersing, drying and particle size classification or sorting process of wet powdery materials in the raw material final grinding system of the cement industry. A powder classifier with integrated grading function. Background technique [0002] The type of powder separator can be divided into: dry method (air type) sorting equipment and wet method (main medium is water) liquid sorting equipment according to the state of the material powder selection medium. It can also be divided into: gravity sedimentation type powder selection equipment, inertia type powder selection equipment, centrifugal force type powder selection equipment and jet vortex type powder selection equipment according to the material powder selection process. The invention belongs to the type...

AI Technical Summary

Problems solved by technology

[0005] At present, there are mainly three types of separators for raw meal grinding systems at home and abroad: 1. Traditional V-type separators and horizontal classifying rotor separators are connected through vertical material-gas heat exchange pipes, which have better drying performance , but the air force of the material needs to be raised to a higher position, the energy consumption of the system fan is high, and the dispersion path is short, which affects the dispersion effect of sticky and wet materials

[0006] 2. The combination of material breaker or drying crusher and horizontal eddy current powder separator requires power consumption when the material breaker or drying crusher is running, and corresponding auxiliary equipment needs to be added at the same time, so the process is more complicated. High energy consumption and low powder selection efficiency

[0007] 3. The traditional V-type powder separator is directly connected with the horizontal classifying rotor powder separator

Due to the short dispersing channel, the drying operation of wet materials has already started while dispersing, and the drying effect of materials is poor. Some sticky and wet materials quickly pass through the drying area and are discharged from the coarse powder outlet, resulting in material dispersal. And the drying effect is not good, the dispersion of more viscous and wet materials is not good, and the fine powder entering the classifying rotor has a large amount of moisture, which affects the powder selection efficiency and operation stability of the powder separator.

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