Research on PLC Based Pulverized Coal Sample Preparation Transfer Mechanize

Abstract

In view of China’s current coal crushing equipment size is too large, this paper aim to design a small coal sample preparation system. This system utilizes the principle of the cone crusher for coarse crushing, and after the pulverized coal is dried in drying apparatus, it will let the pulverized coal enters into the fine grinding device from fixed screening device. The pulverized coal pulverized by fine grinding apparatus, classification by the classification device, and enters into the infrared light detecting device from transmission apparatus to detect its composition. This device’s transmission is based on control of PLC to achieve. At first, this paper describe the operating principle of PLC, then select the hardware and software components of transfer part, and simulate the control part at last.