Abstract: An object of the present invention is to transfer all of the exhaust heat from the topping gas turbine cycle and thereby improve the overall efficiency (i.e., the efficiency of the topping cycle plus bottoming cycle).

Abstract: A signal input sheet having a cover film made of a soft material at its surface, its repetitive writing durability is improved to obtain a signal input sheet having a good feeling and writing condition, and a high durability. A hard film layer 18 harder than a sheet 10 and cover film 15 is set between the sheet 10 made of a soft material and the cover film 15 located at the upper side and slightly harder than the sheet.

Abstract: A gasification furnace main body, having both a water-cooled wall structure and a duct having a water-cooled wall structure and containing therein a group of gas cooling heat-exchangers disposed within a pressure vessel, is improved in order to prevent a reduction in temperature of gas within the pressure vessel which would otherwise occur due to convection and to avoid the risk of fire and explosion which would otherwise be created by char accumulating within the pressure vessel. The improvements reside in an outlet of the duct and the inside of the pressure vessel communicating with each other at a defined location in the apparatus, a partition wall connecting the wall of the duct with an inner wall surface of the pressure vessel at a level higher than that location, and equalizing valves for placing the spaces on respective sides of the partition wall in communication with each other when a pressure difference between the respective sides of the partition wall has become a predetermined value or larger.

Abstract: The present invention has been realized in order to treat noxious and combustible gases, which are exhausted during the start-up operation of a composite coal gasification-power plant and/or released from various safety valves arranged in such power plant and which have hitherto been discharged without treatment into the atmosphere, to make it innoxious and to attain an efficient energy utilization and concerns an improvement of such a composite coal gasification-power plant, which is characterized either in that an additional combustion unit is disposed parallel to the burner of the gas-turbine electric power generating unit and is arranged so as to supply the combustion exhaust gas of this additional combustion unit to as to supply the combustion exhaust gas of this additional combustion unit to the waste heat boiler, or in that an additional combustion unit, operative to effect to burn the noxious and combustible gases exhausted from the burner during start-up and/or those released from safety valves arran

Abstract: A coal gasification composite power generator which comprises a coal pulverizer in which coal is finely pulverized, a means for transferring the finely pulverized coal while drying the finely pulverized coal with a drying gas, a coal feeding means for feeding the coal from the transfer means to a gasification furnace in which the coal is converted to a combustible gas, a gas turbine connected to the gasification furnace and driven with the combustible gas fed from the gasification furnace, and an exhaust gas boiler to which an exhaust gas from the gas turbine is passed to recover the heat of the exhaust gas. The power generator is characterized by further comprising a device for withdrawing part of the combustion exhaust gas at an upstream and a downstream side of the exhaust gas boiler and mixing the withdrawn gases and a pipe connecting the withdrawing device and the pulverizer, so that the mixed gas is passed to the pulverizer.