Filter unit for use at high temperatures

Details Filter unit for use at high temperatures Filter unit for use at high temperatures

1986-11-18

1988-04-05

Spitzer, Robert

Gas separation

With nonliquid cleaning means for separating media

Cohesive filter media cleaning

55498, 55507, 55523, B01D 4604

Patent

active

047356383

ABSTRACT:
A filtering unit for filtering particulates from high temperature gases uses a spiral ceramic spring to bias a ceramic, tubular filter element into sealing contact with a flange about an aperture of a metallic tube sheet. The ceramic spiral spring may contact the upper edge of the filter element and be restrained by a stop member spaced from one end of the tube sheet, or the spring may contact the bottom of the filter element and be restrained by a support member spaced from the opposite end of the tube sheet. The stop member and support member are adjustably secured to the tube sheet. A filtering system uses the ceramic spiral spring to bias a plurality of ceramic, tubular filter elements in a respective plurality of apertures in a tube sheet which divides a vessel into upper and lower enclosed sections.

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"How Hot Gas Cleaning Improves the Economics of Electricity-from-Coal"; G. P. Reed, Filtration and Separation, pp. 120-124 (Mar./Apr. 1984).
"Comparison of High Temperature Gas Particulate Collectors for Low Level Radwaste Incinerator Volume Reduction Systems"; R. L. Moscardini, R. M. Waters, J. R. Johnston and J. F. Zievers, presented at Waste Management '83, Feb. 27-Mar. 3, 1983.

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