31results about How to "Incineration stable" patented technology

The invention discloses a flue gas recirculation type garbage pyrolysis gasification oxygen-rich incinerator which comprises an incinerator main body, a flue gas recirculation type air feeding system, a flue gas filter device, an oxygen-rich air feeding system, a flue gas waste-heat heat exchanger and a flue gas purifying device, wherein the incinerator main body comprises a combustion chamber I and a combustion chamber II which are respectively used for garbage pyrolysis gasification and incineration of combustible materials; the circulated flue gas is injected into the incinerator through the flue gas recirculation type air feeding system, so that turbulivity in the incinerator is improved, garbage incineration is strengthened, incompletely-combusted pollutants such as a dioxin precursor and the like are reduced, and discharge of the pollutants is reduced. The oxygen-rich air feeding system can increase an incineration temperature, and can reduce consumption of auxiliary fuels; the flue gas filter device and the flue gas purifying device can further reduce discharge of pollutants; and the flue gas waste-heat heat exchanger can recycle flue gas waste heat. The flue gas recirculation type garbage pyrolysis gasification oxygen-rich incinerator can effectively solve the problems that a garbage thermal value is low, water content is high, an incineration temperature caused by low oxygen content in air is low, combustion efficiency is poor, consumption of auxiliary fuels is high, discharge of pollutants is not up to standard, and the like.

The invention relates to a technology for making acid by combined incineration of waste sulfuric acid and hydrogen sulfide, and a used incinerator. The technology comprises the following steps: (1) atomizing the waste sulfuric acid, with concentration of greater than or equal to 75%, as a by-product in an oil refinery to form acid mist by combining high pressure pump conveying mechanical atomization with compressed air auxiliary atomization, wherein the grain diameter is smaller than or equal to 80 microns; (2) completely mixing hydrogen sulfide gas, with concentration of 0 to 50%, as the by-product in the oil refinery with hot air in a cyclone air inlet to product mixed gas; and (3) spraying the acid mist into the incinerator by using a waste acid spray gun, meanwhile spraying the mixed gas of hydrogen sulfide gas and hot air into the incinerator by a hydrogen sulfide spray gun and carrying out incineration, pyrolysis and reduction reaction to generate SO2 burner gas, wherein the SO2 burner gas enters an acid making system after the heat is recycled through a heat recovery boiler. During the reaction, the grain diameter of the acid mist is smaller than or equal to 80 microns, and the acid mist is introduced into the incinerator at the same time, so that various reactions can be performed completely and heat loss is reduced furthest at the same time, and produced products meet the requirement of the subsequent acid making technology.