System for treating waste incineration waste gas

Abstract

The invention discloses a system for treating waste incineration waste gas. The system comprises an inert gas storage tank, a pressurizing pump, a flame-retardant machine, a thermal ionization chamber with a wall plate made of a heat-insulating material, a 1# electrode, a movable wall plate, a spray nozzle, a cooling system, a plasma reaction chamber, a 2# electrode, a vacuum-pumping device, a heat exchanger, a waste incineration furnace, a pure water slot, a water pump and the like. The waste gas generated by the waste incineration furnace in the system is not required to cooled after being discharged, so that the high-temperature waste gas can provide energy for the reaction through the heat exchanger; through dual effects of ozone molecules and pressurization, the system can generate thermal ionization reaction at a temperature of 800-1000 DEG C, so that the thermal ionization reaction temperature is greatly reduced and the energy consumption is reduced; the thermal ionization chamber of the system is adjustable in size, and a flow range of treated waste gas can be increased to 80000-15000 m<3> / h by adopting a gas compression method, and treatment needs for waste gas of a common waste incineration plant can be met.

Description

technical field [0001] The invention relates to a system for treating waste gas from incineration of garbage, which belongs to the field of waste gas treatment in environmental protection. Background technique [0002] Pollutants produced during the incineration process of domestic waste mainly include four categories: particulate matter (smoke), acid gas (CO, NO X , SO 2 , HCl, etc.), heavy metals (Hg, Cr, Pb, etc.) and organic pollutants (the main factor is dioxins). Among them, HCl comes from chlorine-containing waste in domestic waste. SO 2 It comes from the high temperature oxidation process of sulfur-containing domestic waste. NO X N from the incineration process of domestic waste 2 and O 2 Oxidation reaction and combustion of nitrogen-containing organic matter, 95% of which are NO, NO 2 The proportion is very small. CO is produced by incomplete combustion of organic combustibles in domestic waste. Metal pollutants originate from heavy metals and their compou...

AI Technical Summary

Problems solved by technology

[0003] 1. Except for the combustion method, other methods require a cooling tower to cool down, which will cause a lot of heat loss

[0004] 2. The reaction temperature of the usual thermal ionization method is very high, the reaction temperature is 5000°C-10000°C, and the energy consumption is large

[0005] 3. The flow range of the usual plasma method to treat exhaust gas is 1000-60000m 3 / h, unable to meet the treatment needs of waste gas from general waste incineration plants

Images