摘要:
Uranium is stably stripped from an organic solvent containing a uranium-laden, amine-based extracting agent into an aqueous ammonium sulfate solution with a very high stripping efficiency in an emulsion-formable high pH range by mixing the organic solvent, the aqueous ammonium sulfate solution and an alkali as a pH-controlling agent, thereby forming a mixture having a pH of 4.5 to 6.0 and a temperature of 15.degree. to 50.degree. C., preferably 25.degree. to 40.degree. C., and subjecting the resulting mixture to an action of centrifugal force of 850 G or higher, thereby separating it into an organic solvent freed from the uranium and an aqueous ammonium sulfate solution containing the uranium.
摘要:
A centrifugal counter-flow liquid container contactor in which a light liquid and a heavy liquid are introduced into a rotary body fixed to a rotary shaft from the outer peripheral portion and the inner peripheral portion of the rotary body, respectively, so that the light liquid and heavy liquid make counter-flow contact with each other and, after the contact, the light liquid and heavy liquid are discharged from the inner peripheral portion and outer peripheral portion of the rotary body. Disc-shaped partition plates are disposed at both sides of radially extending pipes within the rotary body such as a light liquid introduction pipe, heavy liquid discharging pipe and so forth inserted into the rotary body, so as to separate these radial pipes from the region where the light and heavy liquids are mixed with each other.
摘要:
In a liquid-liquid centrifugal extractor wherein a liquid of greater specific gravity is introduced into an inner peripheral portion inside a rotor, while a liquid of smaller specific gravity is introduced into an outer peripheral portion, and the two liquids are brought into direct contact by exploiting the difference of the specific gravities thereof, to move an extract contained in one of the liquids into the other liquid, pipe means or groove-shaped members having a large number of small holes and serving to distribute the liquids are arranged in the outer peripheral portion and the inner peripheral portion inside the rotor in such a manner that they extend in parallel with a shaft for the rotor and that the holes of the means or members in the outer and inner peripheral portions face each other.
摘要:
An object of the present invention is to control the discharge amount of unburned fuel components in the internal combustion engine. According the present invention, the number of times of execution of sub fuel injection is changed based on the operation range within which the operation state of the internal combustion engine falls so that the lower the engine load of the internal combustion engine is, and the lower the number of engine revolutions of the internal combustion engine is, the more the number of times of execution of sub fuel injection is increased. Furthermore, the lower the atmospheric pressure is, the lower the temperature of the cooling water of the internal combustion engine is, or the lower the temperature of the intake air of the internal combustion engine is, the more an operation range in which the number of times of execution of sub fuel injection is large is expanded to higher loads and higher revolutions.
摘要:
An object of the present invention is to control the discharge amount of unburned fuel components in the internal combustion engine. According the present invention, the number of times of execution of sub fuel injection is changed based on the operation range within which the operation state of the internal combustion engine falls so that the lower the engine load of the internal combustion engine is, and the lower the number of engine revolutions of the internal combustion engine is, the more the number of times of execution of sub fuel injection is increased. Furthermore, the lower the atmospheric pressure is, the lower the temperature of the cooling water of the internal combustion engine is, or the lower the temperature of the intake air of the internal combustion engine is, the more an operation range in which the number of times of execution of sub fuel injection is large is expanded to higher loads and higher revolutions.
摘要:
A hydraulic cylinder 41 of a second driver 40 brings both a scraper 20 and a first driver 30 into integrally movable relation so that the scraper 20 is caused to intrude into an uptake 10 of a furnace via an opening 14 defined on a vertical wall of the uptake 10, and an accretion removing pawl 21 is positioned on a horizontal wall surface 12 of the uptake 10. Subsequently, a hydraulic cylinder 31 of the first driver 30 moves the scraper 20 on the horizontal wall surface 12 to scrape off any accretion having occurred thereon. The accretion thus scraped is blown off the horizontal wall surface 12 by pressurized air supplied from a pressurized air-supplying source connected to a flange 27.
摘要:
The guide device for craning a container has guides so arranged that they can be moved vertically by a raising/lowering device mounted on the spreader body and can be positioned at the corners of the spreader. The guides are lowered by the raising/lowering device and secured to the bottom corners of the container held by the spreader. Then the spread parts of the guides project from the lower end of the container to secure the spreader to the container. The structure of the spreader is simple and the weight is light.
摘要:
An apparatus for charging anode scrap into a converting furnace in a continuous copper smelting line without impairing the heat balance of the furnace. Anode scrap is moved into the opening of a chute by means of a charging mechanism. An outer shutter of the furnace is opened and an inner shutter is closed. After closing the outer shutter the inner shutter is opened and anode scrap is charged into the converting furnace. The operation is continuously repeated as the anode scrap is continuously conveyed into the converting furnace. The temperature of the furnace is maintained substantially constant since it is not exposed to ambient air temperature.
摘要:
An apparatus is disclosed for water-granulating slag being discharged from a discharging launder. The apparatus includes a receiving launder arranged below the discharging launder. The receiving launder has opposite side walls to define a widthwise space therebetween. A water-jetting device is provided to jet granulating water to the slag, being discharged from the discharging launder, to water-granulate the slag. The jetting device includes a plurality of partitioning plates arranged in the receiving launder so as to span the widthwise space between the side walls thereof and spaced from each other so as to define a plurality of water outlets, and a water supplying unit for supplying the granulating water into the water outlets to be jetted therefrom against the slag.
摘要:
The guide device for craning a container has guides so arranged that they can be moved vertically by a raising/lowering device mounted on the spreader body and can be positioned at the corners of the spreader. The guides are lowered by the raising/lowering device and secured to the bottom corners of the container held by the spreader. Then the spreaded parts of the guides project from the lower end of the container to secure the spreader to the container. The structure of the spreader is simple and the weight is light.