Results of testing a pilot apparatus for removing solid particles before the regenerative airheater of an oil burning plant

Journal Article · Fri Oct 01 04:00:00 EDT 1976 · Therm. Eng. (USSR) (Engl. Transl.); (United States)

OSTI ID:7302868

Mantsev, V V; Sadof'ev, S R; Levoshchenko, A A; Loktev, B G

To raise the reliability of boiler operation, to improve the conditions of control of superheated steam temperature and to lower the NO/sub x/ emission to the atmosphere, high-sulfur oil is burned with low excess air and with recirculation of flue gases to the lower part of the furnace. However, the low excess air leads to an increase in the unburned carbon and in the concentration of solid particles in the flue gases, which lowers the efficiency of the boiler and has an unfavorable effect on the operation of the regenerative airheater and the chimney and also increases the pollution of the atmosphere and the surrounding area by toxic soot particles. In this regard, new boilers, burning oil, are equipped with a battery of cyclones or with electrostatic precipitators for removing particles from the flue gases. Such plants have not, as yet, been installed in the USSR. Work carried out to study the designs of equipment for removing solid particles from the flue gases of boilers burning oil is discussed. Test results showed that the solid particles of the carryover from a TGM-84A boiler when burning high-sulfur oil with low excess air include particles of coke (mainly particles above 8 ..mu..), and that with the installation in the airheater bypass of an experimental solids removal apparatus with uniflow cyclone elements with a resistance factor zeta = 19, the efficiency of removal is 75 percent at a temperature up to 400/sup 0/C and with withdrawal of gases up to 20 percent. The solids are removed satisfactorily with no clogging of the equipment.

• OSTI ID: 7302868
• Journal Information: Therm. Eng. (USSR) (Engl. Transl.); (United States), Journal Name: Therm. Eng. (USSR) (Engl. Transl.); (United States) Vol. 22:10; ISSN THENA
• Country of Publication: United States
• Language: English

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