Dynamic separator

Abstract

The invention discloses a dynamic separator, which comprises a top cover of the dynamic separator, a variable frequency motor, a worm reducer, a driving wheel, a V-belt, a driven wheel, a rotor device, a blade and a driving device, a bearing seat and a pair of bearings; The motor and the worm reducer are connected together through a coupling, the driving wheel is installed on the output shaft of the worm reducer, and the driven wheel connected with the rotor device is driven by a V-belt, and the blade is fixedly connected with the rotor device; the rotor device It is located inside the top cover of the separator and connected to the flange of the driving device of the dynamic separator. The driving device is installed in the middle of the upper plane of the separator body; the bearing is installed horizontally on the bearing seat; the bearing seat is connected to the flange of the rotor device. When the invention is applied to an HP bowl-type medium-speed coal mill, it can reduce unnecessary re-grinding times of fine particles in the coal mill, improve separation efficiency, reduce internal circulation load, and thereby increase the output of the coal mill.

Description

technical field [0001] The invention relates to a coal mill, in particular to a separator device in an HP bowl-type medium-speed coal mill. Background technique [0002] The structure of the known HP bowl medium-speed coal mill is as follows: figure 1 As shown, the separator adopts static separator 1. The structure of the static separator 1 is as figure 2 As shown, it mainly includes inner cone drum body 12, static separator top cover 16, inner cone body 14, Venturi tube 15, folding door adjustment device 11 and other components. The small head of the inner cone 14 is vertically supported inside the separator body 10 and fixed with the inner cone drum 12 of the separator top cover 116 with bolts; Bolt connection; the folding door device 11 composed of connecting rods, folding doors, joysticks and other parts is installed on the top cover 16 of the static separator. [0003] The main function of the HP bowl-type medium-speed coal mill is to grind raw coal with a diameter...

AI Technical Summary

Problems solved by technology

[0007] Due to the structural limitations of the existing static separator 1, dozens of rectangular holes are opened around the inner cone drum body 12, and the opening degree of the folding door blade 13 is adjusted to control the channel area of ​​the hole and change the fineness of the pulverized coal. , but the steel plate area between the holes prevents the passage of coal powder, so that a large amount of qualified coal powder is repeatedly ground inside the coal mill, which increases the internal circulation load and reduces the separation efficiency of grinding powder

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