Angle measuring device for measuring repose angle of dust

Abstract

The invention discloses an angle measuring device for measuring a repose angle of dust. The angle measuring device comprises an angle meter, an indicator, a connecting rod and a base. One end of the connecting rod is hinged to the end of the base, and the other end of the connecting rod is hinged to the end of the angle meter. The indicator is parallel to the connecting rod, one end of the indicator is hinged to the base, the other end of the indicator is hinged to the circle center of the angle meter, and the bottom edge of the angle meter is parallel to the upper surface of the base. When the connecting rod rotates around a hinged point of the connecting rod to the base, the indicator also rotates around the circle center of the angle meter, and the angle of the indicator pointing at the angle meter is an included angle of the indicator and the horizontal plane. A sample to be tested forms a dust heap on a dust pan, the connecting rod is rotated to be parallel to a bus line of the dust heap, then an angle pointed by the indicator on the angle meter is read, and the angle is the repose angle of dust. The angle measuring device for measuring the repose angle of dust is simple in structure and convenient in measurement process, the dust heap cannot be influenced in measurement process, and the measured repose angle is high in accuracy.

Description

technical field [0001] The invention relates to parameter measurement technology in the field of dust removal, in particular to an angle measuring device for testing the angle of repose of dust. Background technique [0002] In thermal power generation, iron and steel metallurgy, chemical industry, building materials and other industries, a large amount of dust will be generated during the combustion of fuels such as coal, natural gas or biomass. These dusts contain many components that are harmful to the human body and the environment, including toxic Metals, such as elements such as Hg and As, also include organic substances that can cause cancer, such as pyrene and anthracene. [0003] In response to this problem, many related dust removal equipment have been developed. In the existing dust removal device, whether it is an electrostatic precipitator, a bag filter, an electric bag composite dust collector, or a cyclone dust collector, the ash hopper or the silo are an ind...

AI Technical Summary

Problems solved by technology

However, this device is not suitable for measuring the angle of repose of the dust. It is impossible to place the measuring side of the measuring board on the slope of the dust pile. The operator can only hold the measuring board with his hands so that the measuring side is parallel to the slope of the dust pile. Then read the degree, the accuracy of the measurement is directly related to the operator, and the accuracy of the measured angle of repose cannot be guaranteed

Images