VFC for feeder pump to automatically regulate the flow.
供料泵变频控制，自动调节流量。
2
This paper introduced a method of using hopper scale to simulate bridge-type grab ship unloaded by feeder belt flow. It is implemented based on PLC program.
介绍了一种利用料斗秤模拟桥式抓斗卸船机给煤皮带流量的方法，该方法基于PLC程序实现。
3
Several technical features are associated to the new torch design such as an automatic electrode change, a double flow gas nozzle and a push pull wire feeder.