Abstract:
A seal for a grate cooler, in particular for a grate cooler that operates according to the Walking-Floor principle, the seal sealing two individual grate elements that move relative to one another against the penetration of cooled material between the individual grate elements, the seal having at least one individual sealing element.
Abstract:
Disclosed is a heat treatment apparatus which includes a processing vessel having a furnace throat at its bottom and adapted to accommodate process objects therein to perform a heat treatment to the process objects under reduced pressure, the processing vessel having a vessel main body made of quartz, a metallic lid adapted to support thereon a holder for holding a plurality of process objects so as to load and unload the holder into and from the processing vessel and to close and open the furnace throat, and an annular sealing member disposed on the lid to seal a gap between the lid and the furnace throat. A contact-preventing member is disposed between the lid and the furnace throat to prevent contact of the lid with the furnace throat due to squashing of the sealing member that would otherwise occur when an internal pressure of the processing vessel is reduced.
Abstract:
This invention is directed to a controlling curtain opening system in a continuous furnace which comprises a laser photo cell eye system situated in front of the curtain box. The laser photo cell eye system comprises a plurality of laser beams to monitor and adjust to the height of a moving products passing therethrough.
Abstract:
An oven apparatus including wall members which constitute an oven wall defining internal and external regions of an oven and partition walls forming oven compartments within the oven by defining internal and external regions thereof, the wall members including an inner wall panel facing an internal side of the oven or oven compartment, an outer wall panel facing the external side of the oven or oven compartment, and thermal insulation installed between the inner and outer wall panels, wherein a sealable ventilation port is formed on the inner wall panel, a sealable suction port is formed on the outer wall panel, and a suction-generator is connected to the suction port for evacuating the atmosphere within the wall member.
Abstract:
A sealing structure for a solid-transferring screw installed inside a heating furnace such as a material-leveling screw and a product-discharging screw, the sealing structure enabling the solid-transferring screw to be lifted during operation while airtightness of the heating furnace is retained. A driving shaft of the solid-transferring screw passes through through-holes formed in side walls of the heating furnace and is supported by liftable supporting devices disposed outside the furnace. Sealing blocks are attached on outer edges of the through-holes to surround the periphery of the through-holes at the outside of the furnace. Sliding panels are disposed at outer sides of the sealing blocks and have sliding holes for sliding the screw-driving shaft so that the driving shaft extends through the sliding holes. The sliding panels are brought into contact with the sealing blocks via the sealing members therebetween so that the sliding panels are slidable in the vertical direction.
Abstract:
Valve with heated sealing gas suitable for use in a regenerative thermal oxidizer, and oxidizer including the switching valve. The valve of the present invention exhibits excellent sealing characteristics and minimizes wear. In a preferred embodiment, the valve utilizes hot gas from the regenerative process to heat gas for sealing the valve, and sealing air flows through a heat exchanger that is positioned to be in contact with hot exhaust gas from the regenerative process.
Abstract:
An insulating curtain assembly for a continuous furnace, having an extremely durable woven metal-wire covering protecting a thermal insulating fabric which lacks durability. A plurality of horizontally oriented hinges enable the curtain to closely follow a top surface of products having varying thicknesses when those products are entering or exiting the furnace.
Abstract:
The invention relates to a heat shield arrangement for a hot gas conducting structure, in particular a metal component of a gas turbine unit or combustion chamber, with the heat shield elements anchored adjacently on a support structure to cover a surface. Said heat shield elements each comprise a lateral groove, arranged in the region of the edge of the surface thereof facing the hot gas, at least two adjacent shield elements are connected by at least one seal element mounted in the groove. The seal element is embodied as a sealing flap, which may be displaced from a first position to a second position and vice versa, whereby the first position is an open position without a sealing effect and the second position is a closed position with a sealing effect. According to said method the sealing flap is moved from the first to the second position by the movement of a heat shield element.
Abstract:
An apparatus for treating molten metal includes a treatment vessel for holding molten metal and a removable cover or hood for the vessel. Sealing means are provided between the cover and the vessel to provide a gas tight treatment zone. The sealing means include mating peripheral flanges on the vessel and cover, with the cover flange having two spaced annular sealing strips for contacting the vessel flange and a metal annular splash protector. These sealing strips include a thermal barrier strip formed of a deformable fibrous refractory material to provide a gas tight, a thermal barrier between the interior of the vessel and the exterior and a metal annular strip upon which the cover is supported on the vessel with the cover flange at a fixed distance above the vessel flange and the thermal barrier strip is compressed therebetween to a controlled degree.
Abstract:
A multiple-piece seal is used for a cure oven circulating fan. The seal may be readily positioned along the length of the shaft to control the small clearance between the rotating seal and the oven such that there is no contact between the seal and the oven, but the flow of heated air from the oven is substantially reduced and redirected away from the bearings of the circulating fan. The multiple-piece design permits seal replacement without having to disassemble the shaft, so that the seal may be replaced entirely from the outside of the oven, saving substantial down-time.