DEVICE FOR MEASURING PARTICLE SIZE OF CRUSHED FINE COAL

摘要

PURPOSE: A measuring device for the particle size of crushed fine coal is provided to adjust the particle size of a fine coal crushing machine by automatically measuring the particle size of fine coal. CONSTITUTION: A particle size measuring device for crushed fine coal comprises a fine coal collecting device(14) of fine coal collecting wirings installed in the rear end of a fine coal crushing machine; an inner collecting back unit(14b) in the fine coal collecting device; a nitrogen purge unit(13) cleanly processing remaining fine coal attached to the back unit; multi-stage mesh screen units(17) installed in an automatic particle size measuring device through an automatic valve; weight machines(21a,21b) installed in the lower portion of the mesh screen units; and a particle size sorting unit supplying air to rubber tubes(18,18b) through an air supply valve(18a), sealing a multistage mesh screen and operating a vacuum machine, to sort the particle size of fine coal.