RTO is becoming an effective means to deal with organic waste gas, but with the rapid development in recent years, some users find that the running cost is high, reducing the competitive advantage of enterprises. We have analyzed the important influence of RTO designed air volume on operation cost. For VOCs of the same quality, the larger the air volume is designed, the higher the operation cost will be; otherwise, the operation cost will be reduced. Here, only for the analysis of combustion supporting energy (natural gas), the annual operation time is 8000 hours, and the price of natural gas is 4 yuan /m³. If the air volume increases by 10,000 nm ³/h according to the RTO design, the natural gas cost to be consumed is about 800,000 yuan per year.

In fact, if the treatment air volume is designed to be larger than the actual, the selection power of the fan will also be larger, resulting in higher operating electricity costs. If the air volume increases by 10,000 nm ³/h according to the RTO design, the power of the operating fan is calculated as 37KW, and the operating electricity charge is calculated as 1 yuan/degree on average. If the annual operating time is 8000 hours, the extra operating electricity charge is about 296,000 yuan per year. If there are two fans in front and back, it will be higher. In addition, the actual operating electricity charge of combustion fan and back blower is about 650-750,000 yuan/year. Therefore, it can be seen that if the designed air volume is not clear in the early stage of design, the operation cost of RTO will increase by 1.5 million yuan per month/year for every 10,000 nm ³/h increase in light combustion-supporting raw materials and electricity bill.

Therefore, we still suggest that you design the air volume clearly, and pay attention to the design of air volume. So in addition to the design air volume, in fact, many new projects do not know the design concentration. Therefore, at this time, it is necessary to calculate step by step according to the material balance, but not all enterprises must only do one product or do not change in the later period after getting EIA approval, which brings the uncertainty of organic exhaust emission source and emission time of enterprises.

, therefore can only be carried out in accordance with the from established product material balance calculation, the uncertainty of the late, can use different solvents and materials in accordance with their respective distributed in different temperature corresponding to the amount of calculation, and then to the concentration of VOCs right amount calculation, on this basis, a relatively accurate, can provide enterprises with the concentration of design basis, Because only understand RTO import concentration, RTO not overtemperature operation can be ensured, and the ultra concentration operation, such RTO according to its use to allow import concentration is determined, then determine whether air volume need to increase or decrease, so can guarantee the design of the RTO reality, tend to be more reasonable, to ensure that the enterprise investment cost and operation cost not too high, Make the enterprise more competitive.

So besides us about the design of air volume and concentration of design, also need to consider the late will be operation and maintenance costs, this part of the cost is mainly manifested in the early design is to determine entrance organic components, according to the characteristics of different components, reaction properties before and after processing measures, in order to make sure not to overhaul and maintenance of the RTO increase the difficulty and the cost. For example, we need to avoid the entry of polymers, organic ammonium salts and corrosive components. Based on the RTO internal design of some automatic control systems, automatic cleaning and maintenance of interlocking, etc., need to be considered at the outset.

Finally, the most important point is that after the delivery of the RTO, regular maintenance and calibration of each RTO component must be carried out in strict accordance with the operating procedures and maintenance manual. Flame arrester blocked, for example, lead resistance, increase the load of the fan operation, increase the cost of electricity, spray tower of PH/conductivity inaccurate cause circulating water replacement frequency is too high, and so on, these devices require regular maintenance and calibration, fan and maintenance, in addition to avoid cost increase, therefore it is more important to ensure the safe operation.

To sum up, the design and application of RTO is a systematic project, need to uphold the rigorous and meticulous logic design unit design, you need to use the unit with design of exhaust emission source is analyzed and summarized, with design the most fit your RTO unit production characteristics, and to ensure that as much as possible to reduce the investment cost and operation cost, Ensure the operation safety of RTO through rigorous and perfect safety control interlocking.