Abstract: A post continuous hot rolling method where a rear end portion of a preced metal block and a fore end portion of a succeeding metal block are cut and the metal blocks joined to each other by heating and pressing followed by a finish rolling, wherein a poorly joined portion is removed by shaving the defective portion through application of rotating cutters prior to a final finish rolling of the joined blocks.

Abstract: There are disclosed a method for removing CO.sub.2 from a combustion exhaust gas which comprises the step of bringing the combustion exhaust gas under atmospheric pressure into contact with an aqueous solution of a hindered amine selected from the group consisting of 2-amino-2-methyl-1-propanol, 2-methylaminoethanol, 2-ethylaminoethanol and 2-piperidineethanol; and another method for removing carbon dioxide from a combustion exhaust gas which comprises the step of bringing the combustion exhaust gas under atmospheric pressure into contact with a mixed aqueous solution of 100 parts by weight of an amine compound (X) selected from the group consisting of 2-amino-2-methyl-1,3-propanediol, 2-amino-2-methyl-1-propanol, 2-amino-2-ethyl-1,3-propanediol, t-butyldiethanolamine and 2-amino-2-hydroxymethyl-1,3-propanediol; and 1-25 parts by weight of an amine compound (Y) selected from the group consisting of piperazine, piperidine, morpholine, glycine, 2-methylaminoethanol, 2-piperidineethanol and 2-ethylaminoethanol.

Abstract: There is provided a method for flue gas desulfurization which is capable of conducting minute control of oxidation and which is capable of maintaining the concentration of sulfurous acid in an absorbent liquid within a proper range in a highly reliable and efficient manner, even in the case where an abrupt change occurs in the operational conditions of the system. In the method for controlling the oxidation in flue gas desulfurization, the value of proportional sensitivity K in the feed back control process, which is based primarily on the oxidation-reduction potential, is increased depending on the deviation .epsilon. in a region where the detected oxidation reduction potential value PN is below the target oxidation reduction potential value SN in correspondence with the characteristic change of the oxidation-reduction potential against the concentration of sulfurous acid.

Abstract: A burner for combustion of a pulverized coal mixture having two kinds of rich and lean concentration has a height of a burner panel reduced and the overall burner simplified. A rich/lean separator (10, 20, 30) is provided within a pulverized coal conduit (2) so that a high concentration mixture is formed in an outer peripheral portion and a low concentration mixture is formed in a central portion within a single pulverized coal conduit. Thus, a rich mixture burner and a lean mixture burner, which have been conventionally provided separately, may be formed into a single burner. Recirculation of air is accelerated by a cutaway slit (20d, 30d) provided in a central portion of the rich/lean separator to make the air flow rate distribution uniform in a pulverized coal nozzle. Also, a duct and an air blow box for the combustion air to be supplied to the pulverized coal flame are not integrally formed continuous in the height direction, but are divided into a plurality of discontinuous units.

Abstract: A process of gasifying waste containing organic substances which may be combusted or gasified by means of partial oxidation in the presence of air or oxygen and steam. The gasification process includes the step of adjusting the molar ratio of steam/carbon (H.sub.2 O/C) for supplied steam and the organic substances containing carbon to a desired ratio. The process continues with partial oxidation at about 700.degree. C. to about 900.degree. C. and discontinuing the steam supply while continuing only air or oxygen supply to combust the remaining combustibles having carbon as their major component.

Abstract: A burner for an entrained bed gasifier is provided in which a stable ignition is accelerated in the vicinity of a fuel jetting port and a good combustion state is maintained. A fuel (1, 3), such as coal and char etc., and a portion of a gasifying agent (2, 4, 5) are premixed in a burner before they a charged into a gasifier. The burner includes a triple tubular member including an outer tubular portion, an intermediate tubular portion, and an inner tubular portion. A seal gas tube is positioned within the inner tubular portion. At the time when the fuel, such as coal and char etc., and a premixing gas (a portion of the gasifying agent) are charged into the burner, at least any one of the fuel, such as coal and char etc., and the premixing gas is charged in a tangential direction relative to the burner central axis so as to be given a swirling directional velocity component.

Abstract: A scroll type fluid machine can suppress an increase of inclining vibrations of an Oldham ring with easier adjustments. A stationary scroll (1) and a swivel scroll (2), in a pair, are engaged with each other, and the swivel scroll (2) is driven to make revolutional motions, while being prevented from rotating, via an Oldham ring (18) disposed between an end plate (6) of the swivel scroll (2) and a frame (10). A distance between the end plate (6) of the swivel scroll (2) and the frame (10) is s and a thickness of a ring portion (19) of the Oldham ring (18) is t, A gap .delta., formed as (s-t) and a radius r of said ring portion (19) of the Oldham ring (18) is set so that .delta./r is 0.01 or less. Thus, by only the ring portion (19) of the Oldham ring (18) being adjusted in its thickness, an increase of inclining vibrations of an Oldham ring (18) can be suppressed.

Abstract: To provide a spring seal device for connecting inner tube and tail tube of combustor by which air leakage caused by aged deterioration of spring seal is prevented.The spring seal 3, 4 for connecting the inner tube 1 and the tail tube 2 of combustor is fitted at its end portion on the upstream side to outer circumference of the inner tube 1.The downstream side end portion of the spring seal 3, 4 is pinched between inner circumference of the tail tube 2 and a spring seal guide 5 fitted thereto and connects the inner tube 1 and the tail tube 2. At the time of start and stop of gas turbine, the spring seal slides in the spring seal guide 5, thereby thermal deformation is absorbed.

Abstract: A method and a device for dehydrating a heavy oil wherein an emulsion of water and a heavy oil is mixed in a stirring chamber together with a suitable amount of an emulsion breaker, the mixture is subjected to separation in a two-phase separation tank to a heavy oil-rich component and a water-rich component, the heavy oil-rich component is then fed to a dehydrator of a high voltage charge type in which separation to a dehydrated heavy oil and a water-rich component is effected, the water-rich component fractions supplied from the two-phase separation tank and the dehydrator are mixed in a pipeline, the mixture thus obtained is admixed with an O/W emulsion breaker and then, fed to a stirring chamber and finally separated to a heavy oil-containing component and a heavy oil-free water layer in a second separation chamber.

Abstract: In the present invention, when a signature is formed with a chopper folding device, the conveying force of a sheet etc. conveyed to a position for sheet positioning is reduced, and the sheet etc. is released from restraint of the conveying force, by which the effect of the conveying force is not brought to the subsequent sheet folding process, so that a signature can be formed smoothly and properly.

Abstract: This invention relates to a gas refining system wherein a high-temperature and high-pressure reducing gas is introduced into a fixed-bed desulfurizer packed with an adsorbent by which sulfur compounds contained in the high-temperature and high-pressure reducing gas are adsorbed and removed in the form of a sulfide, and the adsorbent having the sulfide adsorbed thereon is regenerated by roasting it with a regenerating gas containing oxygen, characterized in that the gas refining system is equipped with oxygen concentration control means for controlling the oxygen concentration in the regenerating gas introduced into the desulfurizer so as to keep the internal temperature of the desulfurizer during the regeneration reaction within the allowable temperature range of the adsorbent.

Abstract: The present invention aims at providing structural materials having a resistance to degradation by neutron irradiation, causing no SCC in an environment of light-water reactors even after subjecting the materials to neutron irradiation of approximately at least 1.times.10.sup.22 n/cm.sup.2 (E>1 MeV), and having thermal expansion coefficients approximately similar to that of structural materials. The high nickel austenitic stainless steels of the present invention having a resistance to degradation by neutron irradiation can be produced by subjecting stainless steels having compositions (by weight %) of 0.005 to 0.08% of carbon, at most 0.3% of Mn, at most 0.2% of (Si+P+S), 25 to 40% of Ni, 25 to 40% of Cr, at most 3% of Mo or at most 5% of (Mo+W), at most 0.3% of Nb+Ta, at most 0.3% of Ti, at most 0.001% of B and the balance of Fe to a solution-annealing treatment at a temperature of 1000 to 1150.degree. C.

Abstract: A process for the treatment of sewage to provide effective removal of selenium (especially the 6-valent selenium) to meet required standards for the dissolved amount of selenium, and the like, at a low cost are developed. The process and apparatus reduces selenium from the 6-valent selenium using microbiological treatment to obtain 4-valent selenium and/or simple selenium, and then provide a solid-liquid separation.

Abstract: A catalyst for cleaning exhaust gases has a first catalyst layer having as an active metal on an elemental support at least one noble metal selected from the group consisting of platinum, rhodium and palladium and a second catalyst layer having iridium as an active metal which is provided as a overlayer on the first catalyst layer.

Abstract: The present invention provides a method for producing carbon black and an apparatus therefor, in which a gasification furnace is separated into a lower gasification section and an upper pyrolysis section via a distribution plate, waste tire chips are supplied to the pyrolysis section of the gasification furnace and pyrolytically decomposed to separate it into pyrolysis gas and fixed carbon, fine fixed carbon is separated from a mixed gas discharged from the gasification furnace and supplied to the gasification section of the gasification furnace to generate gasification gas, the gasification gas is supplied to the pyrolysis section through the distribution plate, a mixed gas of pyrolysis gas and gasification gas is introduced after fine fixed carbon is separated, so that carbon black is yielded.

Abstract: A corrosion preventive method and an apparatus for preventing corrosion of stainless steel components in an exhaust gas desulfurizing apparatus of an exhaust gas treatment system comprising the exhaust gas desulfurizing apparatus for removing at least sulfur dioxide by bringing exhaust gas into contact with absorbing solution, wherein specific means is employed to maintain the Cl.sup.- concentration and SO.sub.4.sup.2- concentration at a corrosion preventive side of the corrosion resisting limit of stainless steel.

Abstract: A gas turbine stationary blade, having a simple structure in which sufficient cooling is achieved and the drop in pressure of cooling vapor is decreased so that the turbine efficiency is prevented from lowering. The shape of a vapor passage is simplified to prevent the drop in pressure because an outer shroud (3) of the stationary blade and a blade unit (2) are cooled with vapor, while an inner shroud (4) is cooled with the air supplied from another system.

Abstract: A surface cutting method for a hot-rolled steel product that includes a joint portion having a predetermined breaking strength includes a step of clamping the steel product between a pair of milling cutters that are arranged on top and bottom surfaces of the steel product, while the steel product is conveyed in a longitudinal running direction. The top and bottom surfaces of the steel product are subjected to cutting by rotating the milling cutters in a rotating direction. A cutting resistance applied to the milling cutters during the cutting is determined based on parameters including type of steel, width, thickness, surface temperature and conveying speed of the steel product, as well as circumferential speed and cutting depth of the milling cutters.

Abstract: A plurality of green tire storage tables and a green tire loading/unloading apparatus for transferring a green tire on the green tire carrier onto the green tire storage table are provided between a green tire loader at the mold opening/closing station and a plurality of green tire carriers, at least one green tire storage table of the green tire storage tables is a movable green tire storage table, the movable green tire storage table being capable of reciprocating between a first position where a green tire is received by using the green tire loading/unloading apparatus and a second position where a green tire is delivered to the green tire loader, the green tire loading/unloading apparatus can travel between the plural green tire carriers and the plural green tire storage tables, the green tire held horizontally on the movable green tire storage table or by the green tire loading/unloading apparatus is turned so that the positioning control of green tire can be carried out, and the green tire type mark att

Abstract: A burner replacing system has a rail mounted in a ring around the outer periphery of burners mounted radially at the middle of a gas turbine. A carriage turns around the burners via the rail; and supports a pull-out slide via a rotary shaft which turns the slide up and down in the direction of a center axis of the gas turbine. Another rotary shaft turns the slide right and left around a radial axis of the gas turbine. The slide moves in the axial direction of the burners. A hand for gripping the burner is supported by the pull-out slide via a centering slide which moves up and down in the radial direction of the burner. An alternate system has a pull-out slide which is supported by the carriage and moves forward and backward in the axial direction of the burner. A telescopic slide is supported by the pull-out slide and expands in the axial direction of the burner. The hand is provided at the edge of the telescopic slide to grip the burner.