The working principle of RTO waste gas treatment equipment is to heat organic waste gas to above 760 ℃, causing VOC in the waste gas to oxidize and decompose 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". This "heat storage" is used to preheat the subsequent organic waste gas entering. Thus saving fuel consumption for exhaust gas heating. Ceramic heat storage bodies should be divided into two or more zones or chambers, each of which undergoes a sequence of heat storage, heat release, and cleaning procedures, repeating the cycle and working continuously. After the heat storage chamber releases heat, an appropriate amount of clean air should be introduced immediately to clean the chamber. Only after the cleaning is completed can the "heat storage" program be entered.
3. RTO waste gas treatment equipment workflow
Stage 1: The exhaust gas is preheated through the heat storage bed A and then enters the combustion chamber for combustion. The remaining untreated exhaust gas in the heat storage bed C is purged back into 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 remaining untreated exhaust gas in the heat storage bed A is purged back into the combustion chamber for incineration treatment, and the decomposed exhaust gas is discharged through the heat storage bed C, while the heat storage bed C is heated.
Stage 3: The exhaust gas is preheated through the heat storage bed C, and then enters the combustion chamber for combustion. The remaining untreated exhaust gas in the heat storage bed B is purged back into the combustion chamber for incineration treatment. After decomposition, the exhaust gas is discharged through the heat storage bed A, and at the same time, the heat storage bed A is heated.
RTO waste gas treatment equipment workflow
In such periodic operation, the exhaust gas oxidizes and decomposes in the combustion chamber, and the temperature in the combustion chamber is maintained at the set temperature (usually 800~850 ℃). When the concentration of exhaust gas at the RTO inlet reaches a certain value, the heat released by VOCs oxidation can maintain the energy reserve for RTO heat storage and release. At this time, RTO can maintain the temperature of the combustion chamber without using fuel.
4. Characteristics of RTO waste gas treatment equipment
(1) High concentration waste gas treatment achieves self heating combustion, with low operating costs and reasonable cost-effectiveness
(2) High purification efficiency, with a three chamber RTO of over 99%
(3) Using ceramic heat storage as the heat recovery material, preheating and heat storage operate alternately, with a thermal efficiency of ≥ 95%
(4) The steel structure of the furnace body is reliable, with a thick insulation layer, stable operation, and high stability
(5) PLC programmable automation control with high degree of automation
(6) Wide applicability, capable of purifying any organic waste gas
(7) Waste heat utilization has high economic benefits, and the excess heat is reused in the drying room, oven, etc. The heating of the drying room does not require additional fuel or electrical energy consumption.
5. Application scope of RTO waste gas treatment equipment
RTO waste gas treatment equipment is widely used in industries such as petroleum, chemical, plastic, rubber, pharmaceuticals, printing, furniture, textile printing and dyeing, coating, coating, semiconductor manufacturing, synthetic materials, etc. to treat medium to high concentration and high air volume organic waste gas. The types of organic substances that can be treated include benzene, phenol, aldehyde, ketone, ether, ester, alcohol, hydrocarbon, etc.