High precision belt weighing device and method

A high precision belt weighing device comprising:

• a first belt weighing scale frame, a second belt weighing scale frame, and a dispenser that are configured on a belt conveyor;
• a set of buffer carrier rollers configured between the first belt weighing scale frame and the second belt weighing scale frame;
• a volume scale hopper configured above the set of buffer carrier rollers;
• a transfer conveyor connected to the dispenser, the dispenser configured above the volume scale hopper;
• a speedometer configured on the belt conveyor;
• and
• an initial point detector for a belt weight calibration configured on the belt conveyor in a forward direction of the set of buffer carrier rollers, wherein:
• the first belt weighing scale frame, the second belt weighing scale frame, the volume scale hopper, the initial point detector, and the speedometer are respectively connected to a weighing control instrument by cables, and
• a cumulative weight of materials handled by the first belt weighing scale frame, a cumulative weight of materials handled by the second belt weighing scale frame, a weight of materials for calibration in the volume scale hopper, and a zero point of a conveying belt within a section of a length of the conveying belt measured by the initial point detector are displayed on the weighing control instrument.