摘要:
A runner for hot metal as from a blast furnace is formed of a series of interconnected modular units which are prefabricated, preferably from consumable, combustible and/or disintegratable materials of desired densities. A plurality of tunnel-like refractory lined covers are positioned continuously of the runner formed of the interconnected modular units so as to confine fumes, gas, smoke and other air pollutants. Vacuum devices are in communication with the covers so as to remove the air pollutants from the same and direct them through scrubbers and/or precipitron equipment to remove the air pollutants before the air entrained in the system is released to atmosphere.
摘要:
A device for separating slag from molten bath to be discharged from a container, for example, a converter, ladle or the like comprising a tortuous molten bath discharge passage communicated with the container and shaped and arranged such that the static pressure of that portion of the molten bath which is remained in the tortuous molten bath discharge passage after the molten bath has been discharged from the container is kept in balance with the static pressure of the slag following the flow of the molten bath.
摘要:
This invention provides an outlet trough for permitting withdrawal of molten products from a melting furnace, the body of said trough being a mass coaleaced under the influence of physical force, not under thermal influence, with the minimum of reinforcement, thereby making it possible to produce a large-scale outlet trough at reduced cost.
摘要:
An apparatus for use with a launder shell includes a heating component formed of refractory material. The heating component has a compartment configured to contain an electrical heating element. The apparatus further includes an elongated trough section configured for placement in an installed position inside the shell. The trough section has a fluid flow channel and a cavity beneath the channel. The cavity is configured to receive and support the heating component for movement into and out of the installed position together with the trough section.
摘要:
A fired precast block prevents itself from dropping off early due to corrosion and increases service life of a blast furnace runner, etc. when used in a very vulnerable portion of the blast furnace runner, etc., and can be produced at low costs. The fired precast block has an upper surface to contact molten metal or slag, a lower surface opposing the upper surface, and a plurality of side surface. The fired precast block is used by being embedded in a castable in such a manner that the upper surface is exposed from the castable and the lower surface and the plurality of side surfaces contact the castable. Each side surface of at least one opposing pair of side surfaces includes a planar portion and an uneven portion. The uneven portion has at least one groove-shaped concave portion.
摘要:
A vessel used for containing molten metal, e.g. a trough section for conveying molten metal from one location to another. In some embodiments, the vessel employs refractory liner units of different thermal conductivity to maximize heat penetration into the molten metal from heaters in the gap, but to minimize heat loss at the inlet and outlet of the vessel where the end units contact the housing.
摘要:
A well drilling tubulars bin system comprises a well drilling tubulars bin and control device. The bin comprises a frame structure, and an elevator mechanism, for holding multiple layers of a plurality of well drilling tubulars. The elevator mechanism comprises a liftable support structure, and a left and right hydraulic cylinder. The support structure is liftable from a lower position to an upper position. The support structure is raised and lowered in a level manner, or with a tilt angle. The elevator mechanism comprises a first left lift arm and a first right lift arm. The first left and right lift arms are at a first end rotatably connected to the support structure, and at a second end opposite from the first end rotatably connected to the frame structure. The left and right hydraulic cylinders are connected to the respective lift arms for rotating the respective lift arm.
摘要:
The invention relates to a method for manufacturing a melt launder (1) to be used for transferring molten phase such as slag, matte, or metal formed in a process for the production of metals. The invention also relates to a melt launder (1) to be used for transferring molten phase such as slag, matte, or metal formed in a process for the production of metals. The melt launder (1) comprises a launder body of metal (3), a flow channel (2) for molten phase, a refractory lining (4) for lining the launder body of metal (3) so that the refractory lining (4) at least partly forms a flow surface (5) for molten phase in the flow channel (2) for molten phase, and a layer of steel (6) between the launder body of metal (3) and the refractory lining (4).