Grain size measurement manner of blast zuri where it mounts

摘要

PROBLEM TO BE SOLVED: To provide a method and system which is capable of measuring particle sizes of muck piles immediately after blast, at the face immediately after blast.;SOLUTION: A plurality of scales 10 which emit infrared light with a prescribed intensity and have a prescribed size are placed on deposits of blast muck piles 3 at a face 1 which have occurred by rock blasting drilling, and a temperature distribution image Q of the deposits of muck piles 3 including the scales 10 is picked up by an infrared camera 20, and profiles of respective muck piles 3 and scales 10 are extracted from the temperature distribution image Q, and particle sizes of respective muck piles 3 are measured by the profiles and the prescribed size of the scales 10. Preferably, a plurality of temperature distribution images Q1 to Q4 are picked up in time series from one viewpoint P by the infrared camera 20, and profiles of respective muck piles 3 and scales 10 are extracted from the plurality of images Q1 to Q4 by an image processor 25. For example, the temperature distribution images Q1 to Q4 are picked up while continuously blowing the deposits of muck piles. Preferably, one end of a string 15 having a required length is attached to each scale 10, and the scale can be placed on the deposits by throwing.;COPYRIGHT: (C)2012,JPO&INPIT