Patent ID: 6437255
Filing Date: 2002-08-20
Classification: G01G

Abstract:
A continuous weighing meter for bulk material comprising:bulk material input means for supplying bulk material; a conveyor belt having an upper surface onto which the bulk material is deposited and an underside; means for moving said conveyor belt; first weighing means: (a) positioned downstream from said bulk material input means and below said underside of said conveyor belt, and (b) having a first force measuring cell over which said underside of said conveyor belt passes and first evaluation equipment for measuring the gross loading of said conveyor belt;second weighing means: (a) positioned upstream from said bulk material input means and below said underside of said conveyor belt, and (b) having a second force measuring cell over which said underside of said conveyor belt passes and second evaluation equipment for measuring the tare loading of the empty conveyor belt;means for determining the running speed of said conveyor belt; and a computer: (a) having a central processing unit and computing and control programs, and (b) responsive to: (1) the gross loading measurement of said conveyor belt, (2) the tare loading measurement of the empty conveyor belt, and (3) the determination of the running speed of said conveyor belt for determining the bulk material load on said conveyor belt during a period of time determined by the distance between said first force measuring cell and said second force measuring cell divided by the running speed of said conveyor belt.