The power of apron feeder can be divided into three powers: no-load operation, conveying materials and lifting materials. The calculation formula and chart are introduced separately. The driving power of apron feeder for designing high temperature materials can be obtained by checking the chart and performing simple calculation. This power graph algorithm is fast and convenient.
In the engineering design, the selection of apron feeder must first calculate the driving power, determine the transmission device of a single device, and with the change of working conditions to repeatedly calculate, the workload is heavy. Therefore, it is necessary to explore a quick and accurate method to calculate the driving power of apron feeder. This paper introduces a graph algorithm for determining the power of apron feeder for high temperature materials.
The feeding or conveying productivity of apron feeder Q=3600vAY, th "one running speed, m/s, v=0.3m/s in this calculation, the cross-sectional area of A charging material, m3, y material packing density, t/m3, y=1.8t/m3 in the calculation (1) Running speed
In the chain transmission process of apron feeder, the running speed will appear periodic pulsation phenomenon, that is, when the chain joint enters the sprocket tooth engagement moment will produce a large impact force, the impact acceleration is proportional to the square of the running speed, so it is very important to reasonably select the running speed of this feeder. The dynamic stress of the drive train increases correspondingly, and the wear and noise also increase: the running speed is too small, which affects the productivity of the equipment, usually v=0.200.50m/s, so u=0.3m/s is used in this calculation.
(2) Loading cross-sectional area The loading cross-sectional area depends on the geometric size of the feed plate and the material stacking Angle. When the upward inclination Angle is less than the material stacking Angle, the calculation formula of the loading cross-sectional area is as follows:
A=(Ha and +K(B/4)tg, in which the area of A charging machine is m:, a filling coefficient, which depends on material properties and feeding conditions, usually =0.4~1.0, and the height of a material layer is 30.4ha and mha =H-0.05 for normal conveying capacity