Spiral loosening knife device of coal bunker

Abstract

The invention discloses a spiral loosening knife device of a coal bunker. The spiral loosening knife device comprises a coal bunker body as well as an unloading tube and a loosening rod which are connected to the bottom of the coal bunker body, wherein a drive motor is fixedly arranged on the top of the coal bunker body; a loosening rod guide base is fixedly arranged in the unloading tube; the loosening rod is arranged between the loosening motor and the loosening rod guide base; the loosening rod is fixedly provided with a folding loosening knife in a spaced mode in the axial direction; and a loosening knife protective shell is arranged above the folding loosening knife. According to the spiral loosening knife device disclosed by the invention, the loosening rod rotates, so that the folding loosening knife is opened during coal blockage, and is retracted after being dredged, and therefore, coal blockage pressure of the original coal bunker is greatly relieved, and the problem that the coal bunker is difficult to start after coal is jammed is solved. The loosening knife device is simple in structure, solves the problem that the conventional loosening knife device is simplex in loosening form and is small in eliminating and dredging range, and effectively guarantees stable operation of the coal bunker.

Description

technical field [0001] The invention relates to the technical field of coal bunker loosening equipment, in particular to a coal bunker spiral loosening knife device. Background technique [0002] At present, the coal bunkers and silos of existing electric power and industrial boilers are often blocked by coal. In order to solve the coal blocking phenomenon, the existing measures are to install vibration or loosening equipment on the side wall of the coal bunker, such as air cannons, loosening machines or even vibrating coal scuttles, etc.; or to set coal poking holes at the entrance of the coal feeder to reduce coal blocking the occurrence of the situation. In engineering practice, the coal material is often loose when the lower part of the coal hopper is in normal operation, and ordinary loosening devices can ease the coal flow to a certain extent and avoid coal blocking. [0003] However, due to the operating shift of the coal transportation system and the quality and mo...

AI Technical Summary

Problems solved by technology

[0003] However, due to the operating shift of the coal transportation system and the quality and moisture of the raw coal, the coal bunker was already seriously congested before the loosening device was put into use.

Traditional loosening devices, such as coal poking holes, air cannons, etc., have small loosening areas and poor loosening effects; or although the loosening area is large, it is difficult to start when congestion occurs and consumes a lot of energy, such as coal hopper loosening machines, vibrating coal hoppers, etc.

The consequences caused by the blockage of coal in the coal bunker or the inability to start the loosening device are very serious, and even lead to the shutdown of the entire project

At this time, on-site operation and maintenance personnel often solve the problem of coal blocking here by beating and vibrating, which has a high work intensity and poor effect

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