Burning chamber

For none of the trace metals was a correlation found, neither for the type of waste input, nor for the firing conditions like gas temperature or oxidative conditions in the burning chamber, as theoretically described by Belevi (1998). 

Bureau of Explosives 44 Bureau of Mines 364 burning chamber - combustion chamber 60... 

A traditional propane burner of WS was modified for BCO combustion. The burning chandwr with the modified burner was pre heated up to 900°C with an auxiliary burner placed opposite to the BCO atomiser (Fig. 5). The nozzle was cooled down to 30°C. Once 900°C was reached in the burning chamber, the BCO injection was started. After the ignition of BCO, which occurred immediately with supply of the first amount of BCO, the auxiliary burner was turned off. The supply of BCO was started with about 2 1/h and than increased to about 9-10 1/h (liquid pressure 0.9 bar). The air supply was adjusted to about 3% O2 in the flue gases. The burning of BCO in FLOX mode continued stationary without any difficulties for several hours. Table 1 summarises the main experimental results. 

The experiments proved that BCO can be burned without any noticeable residues or soot formation and with practically no CO emission in stationary FLOX mode. Inqnovement in NO emission can be expected by varying excess air and exhaust gas recirculation ratio. However, the nitrogen content of BCO is itself a source of NOx which can not be reduced below a certain limit. The low CO concentration provides evidence for a high quality atomisation which allows a total carbon bum out. Fig. 6 shows the combustion chamber fuelled with BCO (FLOX mode). The temperatures in the burning chamber (on different places) and in the nozzle were recorded, (see Fig. 5). In order to avoid the nozzle plugging, the BCO temperature in the nozzle was controlled closed to the nozzle tip and was kept at 25-30°C, therefore a tenperature caused blocking (coke formation) can be excluded. 

After preheating the burning chamber up to 800-850 "C with an auxiliary burner, the BCO ignition and combustion were carried out without any difficulties. 

Rubber, plastics, fats, plant tissues, foods, biological CRMs B Cr Cu Fe Mn Zn Ash in burning chamber (Quartz Trace-O-Mat, Anton Paar) [DA] [ICP-AES] [DA-ICP-AES] Knapp, et al. (1981)... 

Flue gas of rotary kiln enters the after-burning chamber, where the combustion is completed. Next station of the flue gas is a boiler, where feed water is converted into superheated 40 bar steam. The 360°C hot steam is used for generation of electricity in the neighbouring power station. 

---