Internal heat regeneration system and regeneration method for waste powdered activated carbon

Abstract

The invention provides an internal heat regeneration system for waste powdered activated carbon. The internal heat regeneration system comprises a feeding system, an internal heat rotary regeneration furnace, a burner, a flue gas cooler, a cloth bag catcher, a flow choking fan, a flow choking device, a secondary combustion chamber, a waste heat boiler and a tail gas treatment system. A gas-material cooler is arranged at the tail section of the internal heat rotary regeneration furnace, and heat on powder regenerated carbon and flue gas in the gas-material cooler is transferred to circulating cooling water to be cooled; a top gas outlet of the gas material cooler is communicated with a gas inlet of the flue gas cooler, and heat on flue gas in the flue gas cooler is transferred to circulating cooling water to be cooled; a gas outlet of the flue gas cooler is communicated with a gas inlet of the cloth bag trapper, and a bottom discharge hole of the cloth bag trapper is used for discharging powder regenerated carbon. The invention further provides a regeneration method of the waste powdered activated carbon, and the regeneration method uses the internal heat regeneration system. The problem that powdered activated carbon is difficult to regenerate is solved, the heat efficiency is high, the regeneration yield is high, the safety coefficient is high, the service life of equipment is long, and the regeneration cost is low.