Harmless dangerous waste carbon energy-saving activation and regeneration system

Abstract

The invention discloses a harmless dangerous waste carbon energy-saving activation and regeneration system. The system comprises a waste carbon regeneration unit and a tail gas treatment unit, the tail gas treatment unit comprises a buffer tank and a secondary combustion chamber; the secondary combustion chamber comprises an outer furnace body, an inner furnace body, checker bricks and a gas proportion adjusting combustor; a fire hole is formed in the top of the outer furnace body; the inner furnace body is a hollow cylinder with an opening in the top; wherein the inner furnace body is coaxially sleeved in the outer furnace body; the lower end face of the inner furnace body makes contact with the bottom surface of the outer furnace body. The upper end surface of the inner furnace body is not in contact with the top surface of the inner furnace body, the inner furnace body is filled with the checker bricks, the outer diameter of the inner furnace body is smaller than the inner diameterof the outer furnace body, a nozzle of the gas proportion adjusting combustor is connected to the fire hole of the outer furnace body, the secondary combustion chamber is reasonable in air distribution, sufficient in gas mixing, high in turbulivity and free of dead zone, organic substances in tail gas are fed into the secondary combustion chamber to be completely combusted, and finally small molecular substances like CO2, S02, N0X and H2O are generated, so that harmless treatment is completed.

Description

technical field [0001] The invention relates to the technical field of solid waste harmless treatment equipment, in particular to an energy-saving activation regeneration system for harmless hazardous waste carbon. Background technique [0002] Activated carbon is a good carbon-based adsorbent material and an industrial adsorbent with a wide range of uses. Activated carbon loses its activity as the adsorption capacity increases, and becomes a hazardous waste because it contains harmful components. The regeneration of activated carbon refers to the use of physical, chemical or biochemical methods to treat the carbon that has lost its activity after adsorption waste, and restore its adsorption performance to achieve the purpose of repeated use. Activated carbon regeneration methods include thermal regeneration, chemical regeneration, biological regeneration, and emerging supercritical fluid regeneration methods, electrochemical regeneration methods, photocatalytic regeneratio...

AI Technical Summary

Problems solved by technology

There are many forms of heating and regeneration devices. At present, the main ones used in China are rotary kiln, fluidized bed, and high-grade energy such as primary energy or electricity as heating energy. The energy consumption is high, and fluidized bed is used. The existing gas-solid separation device is a bag filter. Since the bag filter is not resistant to high temperature, the regenerated activated carbon needs to be cooled before the gas-solid separation can be carried out, and the energy consumption is also high.

Images