Abstract

Sergey Lubsanovich Buyantuev¹, Stanislav Yurievich Shishulkin², Gennady Borisovich Zonkhoev¹, Ivan Vasilievich Starinsky¹, Anatoly Sergeevich Kondratenko², Andrey Borisovich Khmelev¹ and Anatoly Dmitrievich Alferov¹

DOI : http://dx.doi.org/10.13005/ojc/330422

The article presents a description of the plasma pulverized-coal burner developed in a scientific laboratory "of plasma and plasma technologies physics" for the ignition of pulverizedcoal stream using the low-temperature plasma, key results of the calculations under the programs “Terra” and “Plazmaugol”, results of experimental investigations and test results of the burner prototypes on a heating boiler. Plasma pulverized-coal burner is built under the non-scroll principle and is used to replace mazut in the technological process for the energy of the low-temperature plasma generated in the plasmatron. The non-scroll principle is implemented in the burner through the air-and-fuel mixture is supplied tangentially to the longitudinal axis of the burner. Thereby the supplied in such a way pulverized coal blend is twisting and spiraling without using special devices such as a scroll.The replacement of mazut is carried out because of the partial gasification and heating up to a temperature of the self-ignition of the pulverized coal flow. When going out from the burner the flow is mixing with the secondary air and then is ignited. However the released calorific energy is sufficient to maintain the pulverized coal blend flame combustion and the boiler unit kindling.

Plasmatron; pulverized-coal burner; mazut; boiler; coal; the low-temperature plasma; kindling of a bolier

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