Research on Small-scale Metering Feeding Device for Wood Powder Based on Scraper Conveyor

Scraper conveyor is a commonly used equipment for production and transportation. In response to the problem of low accuracy in transporting wood powder using a scraper conveyor, a programmable logic controller（PLC）-controlled wood powder feeding metering device was designed, which can achieve kilogram-level wood powder feeding. By modifying the device, it was divided into two parts: the coarse feeding process was carried out using a conveyor belt, and the fine feeding process was completed by a quantitative feeding mechanism. Data interaction and human-machine interaction in the control process were realized through OPC unified architecture（OPC UA）. Feasibility was confirmed through simulation, and the error obtained from the experiment was less than 2%, achieving automatic and accurate metering of wood powder during loading. The metering device generates small errors and can also achieve real-time display of data, which is of great significance for achieving quantitative transportation of wood powder and strengthening the management of material quantitative transportation operations.