As the long distance belt conveyor material for the gravel aggregate, easy to stick in the long distance belt conveyor, long-distance long distance belt conveyor installed in the carbide cleaning device can not effectively scratch the adhesive tape adhesion So that the mud attached to the tape with the tape running with the next roller friction, the tape wear increased. It is currently replaced with a polyurethane cleaner and rinsed with water. In the nose part of the additional sand device, flushing water to the grit chamber discharge, reduce the pollution caused by the environment.
In the central control room through the PLC and computer control system to achieve automatic operation. The control system has the main fault detection and protection function, may realize the machine unattended operation. With a variety of state parameters display function, to facilitate fault analysis, the long-distance long distance belt conveyor system designed deviation, slip and emergency stop switch and other ancillary devices. The main control content is accurate measurement long distance belt conveyor speed detection and computer closed-loop control; slip protection; speed protection; long distance belt conveyor is to achieve a variety of conditions under the start, parking automatic control, to achieve a variety of protection and alarm.
The main maintenance and maintenance of the project are water lines, circuits, automatic control system is normal; whether the hopper chute wear or leakage; cleaning bonded in the long distance belt conveyor stone stone powder, patrol in the long distance tape machine head Whether the installed carbide sweepers are effective in hanging the adhesive on the tape and rinse with water. Electrical system, safety interlock, brake, operating control system and signal system performance is reliable; body frame solid, no significant deformation; wheel, roller, flexible rotation, no wear.
Safety environmental protection issues. As long distance belt conveyor with large volume, high speed, variable angle, long distance long distance belt conveyor characteristics, in order to reduce the operation of the surrounding environment pollution. In some parts along the line set up a closed security wall; colleagues in the long distance belt conveyor belt with additional protective cover, in the dam area transfer silos to add spray device to solve the aggregate dust and noise on the surrounding environment.
Long distance belt conveyor,is e a complex system, although most of the time in the long distance belt conveyor is in a stable state of operation, stable operation of the long distance belt conveyor system speed, Acceleration, tension and other parameters change little, the traditional design method is for this stable state to consider, but the long distance belt conveyor in the start, brake, or accidental parking when the entire long distance belt conveyor system speed, acceleration, tension, The displacement will change with time and with the different position on the conveyor belt has changed greatly, the traditional design calculation has not fully reflect the long distance belt conveyor in the start, stop the process of this transient changes. For long-distance large-capacity long distance belt conveyor in the design must be dynamic design, the use of dynamic design method can describe the long distance belt conveyor system in the mechanical properties of the components, especially in the process of starting the head, tail, Tension the various parts of the device acceleration, speed, tension and the size of the change. So the dynamic design method receives more and more attention, and in the long-distance large-capacity long distance belt conveyor system design has been widely used.
One of the most important ways to study the dynamic characteristics of long distance belt conveyors is to study the longitudinal vibration of long distance belt conveyors (ie, vibrations along the conveyor belt). The long distance belt conveyor has the greatest effect on the longitudinal characteristics during start-up and braking, This chapter mainly focuses on the dynamic analysis of the unstable conditions of the start and brake of the long distance belt conveyor, and studies the key components such as the drive device of the long distance belt conveyor, the key components of the tensioning device and other boundary conditions. Dynamic characteristics of the impact of the conveyor belt to observe the tension, acceleration, speed and other characteristics, so as to obtain the optimal combination of different boundary conditions.