Abstract: A power plant comprises a combustion chamber (1), in which combustion of a combustible matierla is intented to take place while forming hot combustion gases, a gas turbine device (13, 14, 20, 27, 30) which is arranged to be driven by the combustion gases, and a topping combustor (8, 23) which is arranged to receive the combustion gases and increase a temperature thereof to a level suitable for the gas turbine device. Furthermore, there is a gasifying reactor (10) which is arranged to produce a combustible gas for combustion in the topping combustor (8, 23) in order to accomplish said increase of temperature. The gasifier (10) is connected to a conduit member (18) which is arranged to supply an oxygen-containing gas, needed for the gasification, to the gasifier, and which comprises means (34, 35, 36, 37) which are arranged to affect the flow of said oxygen-containing gas, supplied to the gasifier (10), to a desired level.

Abstract: A power plant is disclosed having a combustion chamber (1) in which the combustion of a combustible material is performed, while forming hot combustion gases to drive a gas turbine device (14, 20, 27). A topping combustion device (8, 23) is arranged to receive the combustion gas and raise its temperature to a level suitable for the gas turbine device. A gasifying reactor (1) is arranged to produce a combustible gas for combustion in the topping combustion device (8, 23). A first conduit member (18) is arranged to supply an oxygen-containing gas, necessary for gasification, to the gasifying reactor (10) and a second conduit member (9) is arranged to supply the combustible gas from the gasifying reactor (10) to the topping combustion device (8, 23). A member (35) is arranged at the second conduit member (9) and adapted to cool down the combustible gas supplied to the topping combustion device (8, 23).

Abstract: A combustion plant for a combustion process is disclosed. The plant has a pressurized combustion chamber (1), which encloses a fluidized bed and in which combustion of a fuel is to take place while producing combination gases, a gasifying device (40), which is arranged to produce a combustible gas and a degassed combustible product, and a transportation device (6, 44) for discharging the product from the gasifying device (40) and supplying it to the combustion chamber (1) for combustion of the product in the combustion chamber. The transportation device has a discharge conduit (44) connected to the gasifying device (40) and is arranged to discharge the product from the gasifying device (40). The discharge conduit (44) has a cooling member (45), which is arranged to cool the product discharged from the gasifying device (40), and a pneumatic supply conduit device.

Abstract: A method and device in combustion plants for solid fuels with a movable grate means for feeding the fuel through the fireplace of the combustion plant, for the control of the fuel feed through the fireplace of the plant. To control that the fed fuel is completely combusted when discharged from the fireplace of the plant the degree of combusted fuel is sensed by a sensor means (9) in a zone (B) at the end of the movable grate means (1) in order to obtain a control signal to the drive means of the grate means.

Abstract: This invention relates to a boiler installation for the combustion of solid fuels, for example forest waste material in the form of e.g. bark and/or chips, peat pellets, coal etc., which installation comprises a furnace located in connection to a heat medium portion and a grate located in the furnace. The grate feeds fuel from a fuel charge opening through the furnace while the fuel is being combusted, from which furnace the flue gases flow to the heat medium portion and continue to a chimney. The installation also includes at least one intake for controlled supply of combustion air in the form of at least primary and secondary combustion air.

Abstract: A sealing device for sealing the gap between two spaced, adjacent surfaces is disclosed. The device comprises an inflatable flexible hose disposed within the gap and which, when inflated, completely fills the gap to effect a seal. The hose may be secured to one of the surfaces and will, when evacuated, lie substantially flat against this surface in an unobtrusive position.

Abstract: A collapsible door apparatus for industrial buildings and other installations where a high degree of utilization of the space inside of the door and large door openings are required, for example, for chamber driers. The door is characterized by a door member suspended at a section which is adapted to be attached to the upper limit surface of the door opening and comprises means for raising and lowering the door member by means of at least one wire rope attached to the lower part of the door member. The door member comprises at least one sheet of flexible material and a plurality of stiff cross-members spaced relative to each other and connected with the sheet of flexible material. The cross-members extend transversely of the door member and are guided at their ends in vertical guide bars attached to the vertical limit surfaces of the door openings. The wire rope extends through the cross-members and to the lowermost cross-member where it is attached thereto.

Abstract: A method for fabricating doors having spaced sheets of flexible material with cross-memebers interposed and attached between the material. Flexible material is fed intermittently from material supplies to form both sides of the door. Between each feed step the material is connected to a cross-member in a predetermined operative position, in which the cross-member abuts a movable carrier. The positioning of the cross-member in the operative position is effected by the carrier which causes vertical material feed. The feeding of flexible material and connection of each cross-member is continued until the desired door size is accomplished.