Research on automatic metering and pneumatic vibration conveying technology of energetic powder materials

Abstract

In view of the need to improve the automation and weighing accuracy of solid energetic materials in the weighing process, to reduce the process safety risk of the automatic conveying and loading process and improve the equipment safety control ability, a weight-loss pneumatic vibration conveying device is designed, which adopts the method of weight loss measurement. Through the weighing sensor installed on the weighing platform, the weight of the materials in the weighing hopper is fed back to the controller in real time, The controller obtains the weight reduction per unit time (i.e. the actual flow) through the internal algorithm. According to the difference between the actual flow and the set flow, the controller outputs the speed signal to control the motor speed to achieve the purpose of accurate feeding. A linear pneumatic vibrating conveying chute is designed to continuously convey materials at a certain speed. The linear pneumatic vibrating chute has good linear control through the adjustment of leaf spring, amplitude and frequency, and can realize the automatic and safe measurement and transportation of solid energetic materials.