Method and arrangement for removing deposits in and on feed nozz

Details Method and arrangement for removing deposits in and on feed nozz Method and arrangement for removing deposits in and on feed nozz

1998-04-03

2000-08-22

Gulakowski, Randy

Cleaning and liquid contact with solids

Processes

Hollow work, internal surface treatment

134 2218, 134166R, 134167R, 134168R, B08B 900, B08B 9093, B08B 300

Patent

active

061055905

ABSTRACT:
In order to remove deposits in feed nozzles (20), which serve to recycle exhaust gas into the furnace of a firing installation, a lance (27) can be inserted into the feed nozzles (20) and is held in such a way as to be displaceable in its longitudinal direction. The lance (27) has a nozzle head (28) at its front end for the spraying of water and is connected at its rear end to a valve device (29), which can be adjusted via a control device (32) with regard to the water quantity, the water pressure and the opening and closing times. By means of the lance (27), water is sprayed in a finely distributed manner onto deposits (34) in the interior of the feed nozzle (20), as a result of which the water penetrates into these deposits and causes these deposits to be blasted off due to the development of vapour.

REFERENCES:
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patent: 5160548 (1992-11-01), Boisture
patent: 5512140 (1996-04-01), Rutan
patent: 5670026 (1997-09-01), Rutan
patent: 5674323 (1997-10-01), Garcia
patent: 5735964 (1998-04-01), Amuny
patent: 5833725 (1998-11-01), Dehn et al.
patent: 5833767 (1998-11-01), Magnin et al.
patent: 5851580 (1998-12-01), Amberg et al.
Prof. Dr. Ing. W. Schultes, Energie, Kohle-Treibstoffe-Gas-Strom-Wasserkraft, Jan. 15, 1951.

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