Automatic measuring device for measuring degree of finess of coal powder

摘要

The present invention relates to an automatic coal fineness measurement device. It is mounted on the pulverized coal transport pipe and includes a sample collection unit for collecting a part of the pulverized coal; A mesh assembly having a plurality of mesh sheets having different mesh sizes and spaced in a vertical direction, a vibration generating unit that applies vibration to the mesh assembly so that the pulverized coal passes through the mesh sheet and is separated by particle size, mesh assembly a particle size classifying unit having a base plate installed at the lower part of the mesh body to support the mesh body assembly, and a weight measuring device for measuring the weight of the pulverized coal injected into the mesh body assembly; a weight measurement unit for each particle size that receives the pulverized coal classified by the particle size classification unit and measures the weight of the pulverized coal for each particle size; and a transfer means for moving the particle size classifying unit toward the particle size measuring unit to move the pulverized coal in the mesh body assembly to the grain size measuring unit. The automatic coal fineness measurement device of the present invention as described above can grasp the fineness level of the sample collected from the pulverized coal transfer pipe and the ratio by particle size in real time on site, so that it is possible to quickly manage and control the pulverized coal going to the boiler, Accordingly, it is possible to improve the boiler efficiency. In addition, since a multi-layered mesh body is used to determine the fineness, the overall structure is simple and easy to maintain and repair, and there is no degradation in performance even in a harsh environment with severe vibration.