Lenox introduces FireSight Smelt bed camera for black liquor boilers

January 162011
Lenox introduces FireSight Smelt bed camera for black liquor boilers
January 16, 2011 - Lenox Instrument’s air-cooled, high-temperature FireSight Smelt Bed Camera System provides real-time, color video images from inside a black liquor recovery boiler. Viewing the high-resolution, color images from the plant’s control room, operators can monitor and control the recovery boiler smelt bed for growth, shape and optimal lower furnace operation, helping maximize overall boiler performance and safety.

Designed to be installed through a small opening of only 2-3/8 inches (61mm), the high resolution camera and lens tube is specially designed to survive in environments up to 3000°F (1649ºC). A light volume control feature allows the operator from the control room to easily adjust the amount of light transmitted to the camera, eliminating the bloom common with other systems and ensuring high image clarity.

The FireSight Smelt Bed Camera System also features quartz optics that withstand temperatures up to 1,200°F (649°C) higher than the glass lenses used in other systems. The Smelt Bed Camera’s compressed air- cooling system provides reliable performance while using considerably less compressed air than competing systems. A Wall Box mounting assembly provides the protective housing for the system and serves as the primary coolant shroud. FireSight Smelt Bed Cameras can be supplied with a wide variety of directions and fields of view to match specific application requirements. Infrared thermal imaging models are also available for accurate temperature measurement.

Optional FireSight Smelt Bed Imaging System accessories include an automatic retract system that automatically pulls the Lenox Smelt Bed Camera back from inside the boiler should a loss of cooling occur, preventing possible over-temperature damage to the camera lens assembly; a high efficiency compressed air filter system for removing oil, water and particulates providing clean air to the system insuring trouble-free performance and clear viewing of the smelt bed. The air filter system uses a self–purging coalescing filter and a pressure differential switch, which may be wired to an alarm, letting the operator know when its time to change the filter elements. High-resolution LCD monitors and a digital video recorder are also available.

Each Lenox FireSight Smelt Bed Imaging System is designed, manufactured in the U.S.A. and serviced in-house by Lenox Instrument, and is backed by an industry-leading two-year warranty.

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