Study On The Horizontal Screw Conveyor Management Of The L-screw Ship Unloader

Continuous conveyor is one kind of transportation equipment used to transport bulk material or products. It is widely used in various production departments and logistics of the economy. It can reduce the strenuous manual labour of people, improve efficiency of operations and be apt to realize the mechanical automation with continuous conveyor. As one kind of continuous conveyors, vertical screw conveyor is extensively used in multifarious trades of the national products, which is as one type of critical equipment or a principal accessory equipment in numerous production process flow. The spiral shipunloader flexible traction member screw conveyor as the main working bodies is a high-efficiency continuous bulk unloading machinery. The main advantage of the spiral ship unloader performance in productivity and utilization coefficient is high, wide adaptability of the cargo and the ship, environmental pollution, and the simple structure and lighter.In this article, after studying the characteristic of particle and analysing the conveying mechanism of horizontal screw conveyor, it is proved that the transfer efficiency is affected by the characteristics of particles, the filling level, thread pitch, as well as the revolving speed of screw, and so on. Described by the principle of horizontal screw conveyor process and materials in the horizontal screw conveyor process dynamics and kinematics analysis, the establishment of a series of equations, and then infer the condition of the material to the level of transmission. In addition to the materials that may arise in the course of transmission tumbling mechanism, as well as the main parameters of horizontal transport process were studied, analyzed the specific effects of various parameters on the level of transmission process, through a series of equations discusses some of the main technical parameters of the selection method.Based on the discrete element method, the particles’ transportation state in horizontal screw conveyor is simulated with the EDEM by importing the3D model of horizontal screw conveyor, establishing the real model of bulk material in EDEM and changing the rotation of horizontal screw conveyor, the fill level of particle etc. Then, we analyze the result of simulation. In accordance with the simulation result, the fill level of particle with the relevant rotation of screw should be given according to the characteristic of particle for the high efficiency when conveying particle with horizontal screw conveyor.