Apparatus for regulating and cleaning an air passage in the wall

Details Apparatus for regulating and cleaning an air passage in the wall Apparatus for regulating and cleaning an air passage in the wall

1986-01-31

1987-03-31

Makay, Albert J.

Furnaces

Tuyeres

122 66, 122235B, 122379, F23L 500

Patent

active

046534091

ABSTRACT:
An apparatus for regulating and cleaning air passages (4) provided in the side-wall of a furnace, such as a soda recovery boiler, and connected to an air box positioned outside the wall, comprising a sleeve member reciprocatably mounted in the air box and insertable into the air passage. The rear opening of the sleeve member connects to and is supported by a hollow section of an elongate holder which is slidably mounted in the longitudinal direction thereof and extends through the wall of the air box, and which holder is operatively connected to a driving device. The hollow section of the holder comprises at least one air inlet. In a first regulating position of the sleeve member the air inlet is within a housing member partially surrounding the hollow section to thereby substantially prevent the admission of air into the air inlet, while in a second, advanced position of the sleeve member the air inlet is at least partially outside the housing member so that air in the air box is permitted to flow through the air inlet into the sleeve member. In a modified embodiment the apparatus comprises a separate air regulating device in the form of a case member which is slidably mounted along and in an encompassing relationship with the sleeve member and holder.

REFERENCES:
patent: 3742916 (1973-07-01), Wessburg et al.
patent: 3875904 (1975-04-01), Astrom
patent: 3900011 (1975-08-01), Stenlund
patent: 3943861 (1976-03-01), Astrom et al.
patent: 4027604 (1977-06-01), Jansson
patent: 4099471 (1978-07-01), Sander et al.
patent: 4545308 (1985-10-01), Zateska

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