Powder metering feed method for aluminum electrolysis production involves gravity and gas flow feed of powder from hopper

摘要

The powder metering feed method for aluminum production involves feeding the powder (A) from a vertical storage hopper (1) lower discharge opening. The powder passes through a horizontal passage (2) extending into the hopper. Gravity flow and forced flow using gas feeds the powder from the hopper. The powder flow is cut off after a preset dosage volume by cutting off the gas flow and forming a powder ramp in the passage.