Abstract:
A combustion apparatus is disclosed wherein burner ports are communicated through ducts with slit-shaped air ports formed through the fins or gills of the boiler tubes immediately above the burner ports in such a way that the fresh air or the airexhaust-gas mixture may be selectively blown into the furnace. The NOx, and CO contents in the exhaust gases discharged into the surrounding atmosphere may be considerably decreased.
Abstract:
The apparatus consists of a suspension preheater with a calcining burner, a rotary kiln, a planetary type multicylinder precooler installed into a unitary construction with the rotary kiln and a main cooler and it aims to take away many problems and defects caused by the conventional system having production capacity more than several thousand tons per day.
Abstract:
In a heat exchanger having a tube bundle comprising a plurality of inner tubes and a plurality of cooling tubes, each of the inner tubes being arranged within each of the cooling tubes and passed therethrough to provide a double tube structure. The inside of the inner cooling tubes are gas tightly connected to both inlet and outlet chambers for high temperature fluid and the outside of the inner cooling tubes are gas-tightly connected to both inlet and outlet compartments for heat transfer medium as open ends, a high pressure lower temperature fluid is passed through the outside of the outer cooling tubes, a fluid having a high thermal conductivity, for example, molten lead, lead alloy, tin, tin alloy bismuth, sodium, salts of mercury or of sodium in a molten state, is passed through the outside of the inner cooling tubes as the heat transfer medium in ordinary case, and a gas having a low thermal conductivity is passed therethrough as a heat transfer medium when the inner tubes are required to be maintained at a high temperature.
Abstract:
A container loading and unloading method in which a buffer is provided between a container crane and a rear conveyance facility on a container crane so that some of the containers may be deposited upon said buffer when the containers are transferred from the container crane to the container carriage or vice versa.
Abstract:
A stripper guide with a plate spring of suitable elasticity is located at the exit of a planetary mill. The leading edge of the plate spring extends beyond the envelope of the planetary roll so that the leading edge of the strip may be accurately guided by the deflection of the plate spring.
Abstract:
A contact member holder for continuous submerged self-arc welding in which the contact member is movably mounted so as to press against a welding electrode when extended and to move away from the welding electrode when a trigger wire positioned forwardly of the electrode is burnt out by the welding heat.