Coal slime spiral buffer feeding method and coal slime spiral buffer feeding machine

Abstract

The invention relates to a coal slime spiral buffer feeding method and a coal slime spiral buffer feeding machine, and belongs to the technical field of coal slime transportation. A shaftless variable-pitch spiral conveying system (5) is arranged in a shell of the feeding machine; a wear resistant lining plate is arranged at the bottom; a discharge port (1) is formed in the front part of the shell of the feeding machine; an unloading port of a bin (3) is matched with the shaftless variable-pitch spiral conveying system; the tail part of the shaftless variable-pitch spiral conveying system is connected with a driving system, and the head part extends to the discharge port; the shaftless variable-pitch spiral conveying system consists of spiral blades, and is not provided with a central rotating shaft; the spiral blades are arranged on one axle; the pitches of the spiral blades are unequal; the pitch of the tail part is the smallest; and the pitch of the head part is the biggest. The coal slime spiral buffer feeding method and the coal slime spiral buffer feeding machine have the advantages and active effects of possession of a spiral uniform conveying function, capability of achieving a material buffer effect, increment of conveying capacity, effective prevention of material blockage, reduction of maintenance ratio, prolonging of bearing service life and improvement of production efficiency.

Description

technical field [0001] The invention relates to a coal slime spiral buffer feeding method and a coal slime spiral buffer feeder, which not only have the function of spiral uniform conveying, but also can play the role of material buffering, and belong to the technical field of coal slime transportation. Background technique [0002] Coal slime is a high-concentration, high-viscosity slurry material, and its moisture is generally between 25% and 40%, so its fluidity is very poor. This characteristic of coal slime also determines that general coal slime conveying equipment cannot complete the conveying operation requirements. At present, among the coal slime conveying equipment used by people, there are few equipment that can achieve uniform feeding, no clogging, and economical and durable equipment. The screw conveyor is one of them, and most of the screw conveyors are equidistant screws with shafts. The disadvantage of this kind of screw is that the parts wear heavily, the ...

AI Technical Summary

Problems solved by technology

[0002] Coal slime is a high-concentration, high-viscosity slurry material, and its moisture is generally between 25% and 40%, so its fluidity is very poor

This characteristic of coal slime also determines that the general coal slime conveying equipment cannot complete the conveying operation requirements.

At present, among the coal slime conveying equipment used by people, there are few equipment that can achieve uniform feeding, no clogging, and economical and durable equipment. The screw conveyor is one of them, and most of the screw conveyors are equidistant screws with shafts. The disadvantage of this kind of screw is that the parts wear heavily, the conveying capacity is low, the power consumption is large, and the material is easily broken during the transportation process; at the same time, the number of spiral bodies in the commonly used screw conveyor is generally one or two, which limits If the feeding amount is limited, especially for the system that does not have feeding equipment on the upper part and needs to be fed by a forklift, the screw conveyor will frequently be pressed when the feeding amount is slightly larger, which may cause damage to the motor

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