Deutsche Babcock Werke Aktiengesellschaft

Deutsche Babcock Energie- Und Umwelttechnik Ag

Deutsche Babcock Anlagen Aktiengesellschaft

Deutsche Babcock Werke Energie- Und Umwelttechnik Ag

Lurgi Lentjes Babcock Energietechnik Gmbh

Heiko Rehwinkel

Hans-Joachim Meier

Horst Mollenhoff

Dieter Konig

Friedrich Klauke

Werner Jelich

Udo Kalthoff

Muharrem Kilicaslan

Wolfgang Raue

Gerd Ruther

Gunther Dehn

Helmut Wiehn

Gerd Morawski

Dirk Bunthoff

Jurgen Rutten

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.

Device for monitoring filter components

A combination gas-turbine and steam-turbine process and a power plant that utilizes the process. A waste-heat recovery system with a steam-circulation system is downstream and a pressurized furnace with a combustion chamber is upstream of a gas turbine. Flue surfaces that heat air are accommodated in the furnace. A pressurized gasifier parallels the furnace. Flue gas from the furnace, preheated combustion air, and combustion gas from the gasifier are forwarded to the combustion chamber. The heat of combustion liberated in the furnace by heating the flue gas to beyond its combustion temperature is transmitted exclusively to the combustion air being forwarded to the combustion chamber.

Combined gas/steam turbine process

A device for transferring solid particles from an area of higher pressure to one of lower pressure. A stack-up section (3) between the areas is full of particles and large enough to reduce the current of gas flowing through the open stack-up section from the area of higher pressure as a result of the pressure loss that occurs in the stack-up section to a level that prevents pneumatic conveyance of the particles. A conveyor is in or at the end of the stack-up section.

Device for transferring solid particles

An apparatus for removing dust from hot gas under pressure comprises a housing for filter units disposed in cascade between an upper inlet and a dust funnel at a lower part of the housing. Each filter unit comprises a grate array of collecting ducts to which rigid filter candles of porous ceramic tubes are connected. Clean-gas pipes communicate with the ducts and extend within the housing to a clean-gas chamber at which they open through nozzles juxtaposed with drive gas pipes capable of propelling gas through the clean-gas pipes for dislodging deposits of the filter candles.

Apparatus for dedusting a gas stream

A device for filtering hot, dust-laden gases with filter tubes (2) accommodated in a closed housing (1) that contains both a dirty-gas section and a clean-gas section and consisting of hollow structures (9) that have at least one exit that communicates with the clean-gas section and are otherwise closed, characterized in that the edge (11) around the exit from each tube constitutes a base and rests subject to the weight of the tube against a counterpart in the clean-gas section such that the weight of the tube and the difference between the pressure of the gas in the dirty-gas section and that of the gas in the clean-gas section act parallel.

Device for filtering hot, dust-laden gases

A furnace, especially a fluidized furnace with a combustion chamber (1) that gas flows up through and that has a gas outlet provided with a second flue (2) and a precipitator (10) for separating solids from the flue gas. The solids end of the precipitator communicates with the second flue, which accommodates a layer (12) of solid matter. The bottom of the second flue communicates by way of a solids-reintroduction line (14) with the combustion chamber. The second flue is a solids cooler and the precipitator is also a filter.

Furnace, especially a fluidized furnace

A steam generator and a method of burning fuels therein. A combustion chamber of gas-tight pipe walls has a fluidized bed. Above the bed is a free space with an incrementally lower solids density that accommodates heat-convection surfaces. Coarse-particle precipitators communicate with the top of the combustion chamber with their solids-extraction outlet communicating with the fluidized bed through a feedback system. The combustion chamber, its heat-convection surfaces, the coarse-particle precipitators, and the feedback system are surrounded by pressurized vessel. The fuel is burned in the fluidized bed under pressure. Densities of 0.5 to 5 kg of solids per kg of flue gas are maintained in the free space (4) above the bed by means of fluidizing rates of 1 to 5 m/sec. The temperature of and load on the fluidized bed are regulated by the amount of solids returned to the bed.

Growing community of inventors

Bottrop, Germany

Heiko Rehwinkel