Air locking and feeding device

Abstract

The invention discloses an air locking and feeding device. The air locking and feeding device comprises a shell and a rotor assembly, wherein the shell is fixed to a rack, the rotor assembly is rotatably arranged in the shell, and the rotor assembly is connected with a power plant; the shell comprises a vertical cylinder, a cylinder bottom which is fixedly arranged at the bottom of the cylinder and a cylinder cover which is fixedly arranged on the top of the cylinder, a feed opening is formed in the cylinder cover, and a discharge opening is formed in the cylinder bottom; the rotor assembly comprises a vertical rotating shaft and an impeller which is fixed to the rotating shaft, the impeller comprises an inner sleeve which is arranged on the rotating shaft and is fixedly connected with the rotating shaft, an outer sleeve which is arranged on the outer side of the inner sleeve and a plurality of vertical blades which are arranged between the inner sleeve and the outer sleeve at intervals, the inner edges of the blades are fixed to the inner sleeve, and the outer edges of the blades are fixed to the outer sleeve. According to the air locking and feeding device, no accumulation body is formed in rotor lattices of the rotor assembly, so that the phenomena of jamming and shutdown are reduced, the air locking capability is greatly increased, the energy consumption of unit product is obviously reduced, and the operation and maintenance are convenient.

Description

technical field [0001] The invention relates to the technical field of solid particle or powdery material feeding equipment, in particular to an air lock feeding device, which is suitable for building materials, chemical industry, metallurgy and other industries. Background technique [0002] In some grinding systems in building materials, chemical industry, metallurgy and other industries, the internal working pressure of the grinding equipment is different from the external pressure. Function, that is, it has the effect of locking wind. For example: when the vertical mill of the dry process cement production line is working, the interior of the vertical mill is under negative pressure. The operation process of the vertical mill requires that the feeding device connected to the feed port of the vertical mill has the function of feeding and locking air. [0003] At present, the air lock feeding device of the raw material vertical mill of the dry process cement production li...

AI Technical Summary

Problems solved by technology

[0009] Although the sealed apron feeder solves the problems of air leakage and jamming, this method requires a lot of installation work and high installation costs; moreover, the bearings and transmission mechanisms of the apron feeder 18 are in harsh working conditions, and these parts are very easy to In addition, the apron feeder 18 is in the sealed casing 19, which is not conducive to its inspection, refueling, replacement and other maintenance work, resulting in untimely use and maintenance of the equipment, and ultimately lead to overall use, expensive to maintain

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