Мeasuring the mass flow of disperse materials

Abstract

Reasonable design and methods of measurement of flow of particulate material in the dynamic mode, the following advantages compared to existing is synchronous with the dosing devices, processing of research results and their display on a computer monitor or creating hard copies of the random process. Due to the high performance of the used analog-to-digital Converter if necessary you can ensure that the discretization of continuous random batching process, which allows to obtain a maximum of 100 measurements and more per second and, consequently, high information content studies. According to the results of mathematical modeling, this study depends on the length of compensator of dynamic efforts, the length of the measuring plane, changing the angle of tilt of the measurement plane. For the flow of dispersed materials is selected the following design features: angle of inclination of the measuring plane to the horizontal; the thickness, width and length of the measuring plane; the modulus of elasticity of phosphor bronze cloth of the meter. The functioning of the flow meter of disperse materials in a dynamic mode is ensured for the accuracy of the measurement and the reliability of the data obtained at an angle of the compensator of the dynamic forces to the horizontal α1 = 3°, the length of the compensator = 0,045 m, the length of the measuring plane = 0,065 m and the angle of its previous tilt to the horizon α'= 27.25°. The width and thickness of the measuring plane, which is = 0.069 m and = 1.5•10-3 m, are discussed. As a result of the calibration of the meter, the dependence of the output voltage of the strain gauges of the flow meter of dispersed materials on the mass flow of dispersed materials along the strain gauge plane was established.