Title:
BLOCKING PREVENTION DEVICE OF AQUEOUS AMMONIA ATOMIZING NOZZLE IN DENITRATION DEVICE
Document Type and Number:
Japanese Patent JPH02223625
Kind Code:
A
Abstract:
PURPOSE:To remove easily soot in exhaust gas entering or adhering to an aqueous ammonia atomizing nozzle by connecting compressed air piping and aqueous ammonia piping through a cleaning magnetic valve. CONSTITUTION:An aqueous ammonia supply source is connected to the aqueous ammonia supply port 9a of an aqueous ammonia atomizing nozzle 5' through a check valve 12a and an ammonia supply magnetic valve 12. To a compressed air supply port 10a, a compressed air supply source is connected through a compressed air supply magnetic valve 11. Moreover, a cleaning magnetic valve 13 is connected to the aqueous ammonia supply port 9a through a check valve 13a. As a result, the cleaning magnetic valve 13 is opened for a short time while the aqueous ammonia atomizing nozzle 5' is operating, so that compressed air is jetted from the aqueous ammonia supply port 9a to the nozzle portion through the check valve 13a. It is thus possible to blow off the soot in exhaust gas entering the inside of the nozzle in a moment.
Inventors:
YOSHIDA HIROSHI
TAKAI NOBUO
IKETANI HIROSHI
TAKAI NOBUO
IKETANI HIROSHI
Application Number:
JP4329189A
Publication Date:
September 06, 1990
Filing Date:
February 27, 1989
Export Citation:
Assignee:
SHINKO ELECTRIC CO LTD
International Classes:
F01N3/08; (IPC1-7): F01N3/08
Attorney, Agent or Firm:
Haruya Saito (2 outside)
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