Deutsche Babcock Energie- Und Umwelttechnik Ag

Lurgi Lentjes Babcock Energietechnik Gmbh

Hitachi Power Europe Gmbh

Friedrich Klauke

Heiko Rehwinkel

Dieter Konig

Werner Jelich

Udo Kalthoff

Gunther Dehn

Martin Becker

An arrangement for filtering dust from hot gas, in which a housing is provided with a dirty-gas zone and a clean-gas zone, as well as porous-walled hollow structures that are continuous with the exception of an outlet opening into the clean-gas zone. A filtering tube surrounds the outlet and has an area with spherically convex base that rests against a support fixed in the clean-gas zone. Between the base of the tube and the support, there is an annular adapter which has a coefficient of linear heat expansion that is approximately at least that of the tube. The annular adapter rests against the convex base of the tube, and has a flat surface that rests against a matching flat surface on the support, so that the adapter can slide horizontally over the support that is fixedly connected to the clean-gas zone. The sliding of the adapter relative to the support occurs over oppositely-lying flat parallel surfaces, one of which is on the support and the other is on the adapter. The support and the adapter are free to expand in all directions due to the sliding action that is made possible.

Device for filtering dust from gas

A device for filtering hot and dusty gases. The device uses hollow filter components. The components are accommodated in groups in a filter housing (1). Every group communicates with a filtered-gas manifold (21) outside the housing by way of a supply line (9) and a filtered-gas line (11). The supply lines extend individually out of the housing. A valve (13) is accommodated in every supply line. An instrument that determines the state of the filtered gas can also be accommodated in every supply line and/or filtered-gas line.

Device for filtering hot and dusty gases

A method of monitoring filter components. The components are hollow and employed for filtering hot and dusty gases. They are accommodated in groups in a housing. Each group communicates through a single supply line with a filtered-gas line. The filtered-gas line conveys the filtered gas away. A sweeper is injected in the form of a gas into each supply line in cycles at higher pressure. The sweeping cycle is recorded. Measurement is carried out in the flow of sweeper and/or of filtered gas. The result of the measurement is compared with the record and an alarm released in the event of a discrepancy.

Method of monitoring filter components

A device for monitoring the hollow filter components employed to filter hot and dusty gases. The components are grouped inside a filter housing (1). The components communicate through supply lines (9) with collectors ( 10). The collectors convey the filtered gas away. The line supplying each group accommodates a lance (15). The lance injects a fluid for sweeping the components clean. A transducer (16) downstream of the filter components detects the pressure of the filtered gas in the line. A change in pressure reveals a malfunction.

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Ratingen, Germany

Friedrich Klauke