Abstract
In order to release the lateral force of pipe conveyor belt in vertical transportation, the thesis had a study of the lateral force of the conveyor belt. By making use of Janssen Principles and fractal theory, based on reasonable simplification, the author established a mathematical model of the lateral force in vertical transportation, and with the research foundation of the pipe belt conveyor for underground transportation, through solution analysis, the author found out that the change of material diameter would lead to nonlinear variation of the lateral force of the conveyor belt. Under the circumstances of different material diameter, discrete element method was adopted to simulate the lateral force of the conveyor belt, thus working out the distribution curve chart of the lateral force. To verify the reliability of the theory, the author built an experimental platform for pipe conveyor belt in vertical transportation, and experimented with five groups of materials in different diameter, working out the strain of lateral force of the characteristic conveyor belt; by comparing the theoretical result, the simulation result and the experimental result, it showed that the solution to relieving lateral force through optimization selection of material diameter put forward in this thesis was reasonable and effective. It provides theoretical reference for the design of pipe belt conveyor.
Highlights
The pipe belt conveyor is a special belt conveyor developed from the ordinary belt conveyor (Wang Ying et al.,2003)
As to the vertical transportation of the pipe belt conveyor, inside the conveyor belt, it is full of bulk material particles, and under the effect of multiple forces including gravity, friction, material lateral force, tension and roller positive force, its force condition is more complex compared with normal transportation
In the 90s, the author of this paper studied the design of the tension transition section of the circular pipe belt conveyor; other domestic scholars like Sun Kewen (1996) and Yang Houhua (2006) did research on the tension of the conveyor belt in the circular pipe belt conveyor
Summary
Shuang Wang[1], Yong-Cun Guo[2], De-Yong Li3, Kun Hu4 1,2,3Anhui University of Science and Technology, Anhui Mine Electromechanical Equipment.
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