Device and method for controlling the fuel-air ratio in the combustion of ground coal in a firing system of a coal-fired power station

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United States of America Patent

PATENT NO 9599340
APP PUB NO 20140130723A1
SERIAL NO

14130626

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Abstract

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Coal-fired power station with controller for air-fuel ratio in combustion of ground coal, with pneumatic conveying of ground coal to burners of power station. An electrode (10) with average radius rm with 0.1 mm≦rm≦1.2 mm arranged in channel carrying air in flow direction of air upstream of sensors (11) of correlation measurement device (12) at distance l with 1× unobstructed width of flow cross-section of the channel carrying the air11). A counter electrode (13, 25) electrically operative relative to electrode (10) is arranged in upstream of sensors (11), and electrode (10) and counter electrode (13, 25) are connected with different poles of a high-voltage source (9) configured for providing a voltage U of 12 kV≦U≦20 kV.

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Patent Owner(s)

Patent OwnerAddress
PROMECON PROZESS-UND MESSTECHNIK CONRADS GMBHSTEINFELDSTRASSE 3 D-39179 BARLEBEN

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Bohm, Martin Magdeburg, DE 5 29
Conrads, Hans Georg Hannover, DE 9 30
Halm, Alexander Hohenwarthe, DE 4 19

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