Rotary-cutting-type loosening and feeding machine

Abstract

The invention discloses a rotary-cutting-type loosening and feeding machine, which solves the problem that the material dredging effect of the existing equipment is poor. The rotary-cutting-type loosening and feeding machine is characterized in that a raw coal hopper is partitioned from a position which is at the lower part of the raw coal hopper and is 1-1.5m far away from the top surface of a gate, a circular-ring upper tray is welded at the upper part of the raw coal hopper, a circular-ring lower tray is welded at the lower part of the raw coal hopper, a hollow driven wheel is arranged between the upper tray and the lower tray, and the driven wheel rotates in the rings of the upper tray and the lower tray; a knife rest consisting of three scraping rods is arranged in the upper part of the raw coal hopper, the upper ends of the scraping rods are connected together, the lower ends of the scraping rods are welded on the inner wall of the driven wheel, and a plurality of loosening scraping knives are arranged on the scraping rods; and the driven wheel is connected with a driving wheel and the driving wheel is driven by a driving device. By loosening the materials through combined rotary cutting movement of the knife rest and the scraping knives, the raw coal is prevented from arching, being stuck on the wall and being caked, the materials are kept in a flowing state and the problem of raw coal silo blockage is effectively solved; and the rotary-cutting-type loosening and feeding machine has the advantages of low energy consumption, simple structure, convenience in installation, wide dredging scope, convenience in maintenance and high practicability.

Description

technical field [0001] The invention relates to dredging equipment, more specifically to a device for loosening materials so that materials can be conveyed smoothly. Background technique [0002] The raw coal scuttle is an important component of the boiler coal delivery system of a coal-fired power plant. It generally adopts a steel structure or a steel-concrete structure. The upper part is square or cylindrical, and the lower part is conical or square conical. Particles flow by their own weight from top to bottom. Due to the gradual shrinkage of the section, the more the raw coal particles flow downward, the greater the extrusion force. When the raw coal is wet or mixed with coal slime, it is very easy to cause coal powder to stick to the wall, arch, block, and cause coal breakage, which seriously affects the stability of the boiler. Operation, especially in the rainy season is more serious. At present, in order to solve the problem of coal blocking in raw coal bunkers, t...

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