RTO regenerative combustion furnace, abbreviated as RTO, is an efficient, energy-saving and environmentally friendly equipment used for treating medium to high concentration organic waste gas. The RTO regenerative combustion furnace oxidizes and decomposes organic compounds (VOCs) in exhaust gas into carbon dioxide and water at high temperatures, thereby purifying the exhaust gas and recovering the heat released during the decomposition of the exhaust gas.
RTO regenerative combustion furnace, abbreviated as RTO, is an efficient, energy-saving and environmentally friendly equipment used for treating medium to high concentration organic waste gas. The RTO regenerative combustion furnace oxidizes and decomposes organic compounds (VOCs) in exhaust gas into carbon dioxide and water at high temperatures, thereby purifying the exhaust gas and recovering the heat released during the decomposition of the exhaust gas. The three chamber RTO regenerative combustion furnace has an exhaust gas decomposition efficiency of over 99% and a heat recovery efficiency of over 95%, which can reduce operating costs. The main structure of RTO regenerative combustion furnace consists of combustion chamber, regenerative chamber, burner, switching valve, gas and combustion support system, compressed air system, control system, etc. Different heat recovery methods and switching valve methods can be selected according to the actual needs of customers.
The principle of RTO regenerative combustion technology is to heat organic waste gas to above 760 ℃, so that VOCs in the waste gas are oxidized and decomposed into carbon dioxide and water. The high-temperature gas generated by oxidation flows through a specially designed ceramic heat storage body, causing the ceramic body to heat up and "store heat", which is used to preheat the organic waste gas that enters later. Thus saving fuel consumption for exhaust gas heating. Ceramic thermal storage bodies should be divided into two or more zones or chambers, with each chamber undergoing a sequence of thermal storage, heat release, and cleaning, repeating the process and working continuously. After the "heat release" of the heat storage chamber, an appropriate amount of clean air should be immediately introduced to clean the chamber (to ensure a VOCs removal rate of over 95%). Only after the cleaning is completed can the "heat storage" program be entered.
technological process:
Stage 1: The exhaust gas is preheated through the heat storage bed A and then enters the combustion chamber for combustion. The residual untreated exhaust gas in the heat storage bed C is purified and then blown back to the combustion chamber for incineration treatment (blowing function). The decomposed exhaust gas is discharged through the heat storage bed B, while the heat storage bed B is heated.
Stage 2: The exhaust gas is preheated through the heat storage bed B and then enters the combustion chamber for combustion. The residual untreated exhaust gas in the heat storage bed A is purified and then blown back to the combustion chamber for incineration treatment. After decomposition, the exhaust gas is discharged through the heat storage bed C, which is heated at the same time.
Stage 3: The exhaust gas is preheated through the thermal storage bed C and then enters the combustion chamber for combustion. The residual untreated exhaust gas in the thermal storage bed B is purified and then blown back to the combustion chamber for incineration and decomposition. The exhaust gas is discharged through the thermal storage bed A, and at the same time, the thermal storage bed A is heated.
Such periodic operation causes the exhaust gas to oxidize and decompose in the combustion chamber, and the temperature inside the combustion chamber is maintained at the set temperature (usually 800-850 ℃). When the exhaust gas concentration at the RTO inlet reaches a certain value, the heat released by VOCs oxidation can maintain the energy reserve for RTO's heat storage and release. At this time, RTO can maintain the temperature inside the combustion chamber without using fuel.
