Abstract:
This invention is provided with a furnace body (2) having a bottom electrode (1) at a lower portion thereof, a furnace cover (3) provided so as to close an upper portion of the furnace body (2), a raw material inlet port (25) formed in the substantially central portion of the furnace cover (3), and two upper electrodes (26, 27) so as to vertically pass through the portions of the furnace cover (3) which are laterally on both sides of the raw material inlet port (25). A raw material consisting of scrap is fed continuously from the raw material inlet port (25), and an arc is directed to the scrap in the central portion of the furnace body (2).
Abstract:
An offshore floating wind power generation plant has a single point mooring system (10) fixed to a sea floor, a float in the form of at least an triangle (23a), the float being floated on a surface of sea and moored at an apex of the triangle to the single point mooring system (10) and a wind power generation unit (30) on the float (10). Effective and stable generation of electricity can be made irrespective of change of the direction of the wind.
Abstract:
This invention is provided with a furnace body (1) having an electrode (3) and adapted to melt scrap with arc heat, an air blow port (20) from which air is blown into the furnace body (1) via an air control valve (19), a carbon blow rate indicator (CI) adapted to measure the quantity of carbon introduced into the furnace body (1), a scrap feed rate indicator (SI) adapted to measure the quantity of scrap introduced into the furnace body (1), an oxygen blow rate indicator (OI) adapted to measure the quantity of oxygen introduced into the furnace body (1), and a computing element (7) adapted to determine the quantity of air, which is required to completely burn carbon monoxide (23) in the furnace body (1), on the basis of the measurement values from the carbon blow rate indicator (CI), scrap feed rate indicator (SI) and oxygen blow rate indicator (OI) and control the degree of opening of the air control valve (19). The air the quantity of which is proportional to that of carbon monoxide (23) is blown from the air blow port (20) into the furnace to enable the combustion temperature in the furnace body (1) and the temperature in a scrap preheater to be controlled.
Abstract:
A texture measuring method which picks up an image produced by rays of light emitted from a light source and passed through a sheet of paper having a required area with a camera, displays the image as a transmission light image on a display of an image processor, performs image processing on the transmission light image displayed on the display so as to determine a texture coefficient and to quantify the texture, and optimizes a J/W ratio or the like by fuzzy control using a membership function on the basis of the texture coefficient thus obtained in order to improve the texture.
Abstract:
This apparatus is provided with a throat (38) which has at one end thereof a raw material inlet port (37) connected to a furnace body (2), and which extends in the diagonally upward direction, a heat exchanger (39) formed on the upper side of the other end of the throat (38), a seal unit (42) provided on the upper side of the heat exchanger (39), a raw material supply unit (43) adapted to supply scraps (13) to an upper portion of the seal unit (42), an exhaust duct (53) which is formed at the portion of the heat exchanger (39) which is immediately under the seal unit (42), and which is connected to an exhaust unit (58), and a raw material feed unit (46) provided at the other end of the throat (38) and adapted to send out the scraps (13) in the heat exchanger (39) to the raw material inlet port (37), the scraps being supplied substantially continuously to the furnace body (2) as they are preheated with a high-temperature exhaust gas from the furnace body (2).
Abstract:
A cover (3) for a furnace body (2) is connected to each of two upper electrodes (16, 17) which extend through the portions of the furnace cover (3) which are spaced horizontally from each other by a predetermined distance. The upper electrodes (16, 17) have upper conductors (20, 21) thereon, which extend in the directions in which the conductors (20, 21) are away from the other upper electrodes. Two lower conductors (22, 23) are provided so as to be connected to a lower electrode (1) and extend in the same direction as the upper conductors (20, 21). Separate power source circuits (24, 25) are provided between the extended ends of one set of upper and lower conductors (20, 22) and between those of the other set of upper and lower conductors (21, 23), and arcs (12a, 12b) occurring between the upper and lower electrodes (16, 1; 17, 1) are directed toward the center of the furnace body (2).
Abstract:
An oil feeding pipe (34) for circulating lubricant oil (O) and an oil discharging pipe (35) are connected between the externally oil-fed type mechanically driven supercharger (1) and the engine (15). Lubricant oil (O) having been used in the engine (15) is fed to the supercharger (1) through the oil feeding pipe (34). Lubricant oil (O) having been used in the supercharger (1) is returned to the engine (15) through the oil discharging pipe (35). In this way, lubricant oil for exclusive use and associated devices are entirely needless.