DUST COAL IGNITING BURNER DEVICE
Several burners each have a primary sleeve into which a mixture of pulverised coal and primary air is supplied and outside which is a secondary air supply. The exit end of the primary sleeve has a swirl vane provided in it and leads to a large diamter portion and a flame protector. A ceramic igniter...
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Format: | Patent |
Sprache: | eng ; fre ; ger |
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Zusammenfassung: | Several burners each have a primary sleeve into which a mixture of pulverised coal and primary air is supplied and outside which is a secondary air supply. The exit end of the primary sleeve has a swirl vane provided in it and leads to a large diamter portion and a flame protector. A ceramic igniter and a coal concn. detector are provided in the large diameter portion. The portion serves to slow the flow of the air and pulverised coal mixture. The swirl vane creates a region of high coal concn. suitable for ignition and its degree of opening is controlled by output from the coal cocn. detector. |
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