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    • 4. 发明专利
    • APPARATUS FOR PREPARING DRINKING WATER FROM PREPARED WATER IN SEAWATER DESALTING APPARATUS
    • JPS6058294A
    • 1985-04-04
    • JP16326583
    • 1983-09-07
    • MITSUBISHI HEAVY IND LTD
    • MATSUMOTO KAZUHIROKUWABARA HARUO
    • C02F1/68C02F1/66
    • PURPOSE:To provide the titled compact apparatus easy to operate, constituted so as to finely pulvelize an alkali stock material by a pulverizer while mixing the pulverized stock material with carbon dioxide-containing prepared water in a thickener to obtain hard water. CONSTITUTION:Required carbon dioxide 2 is added to the prepared water 1 obtained in a seawater desalting apparatus and dissolved therein in a line mixer 3 while the make-up water is sent to the slurry mixing tank 23 of a reactivator type thickener 22. On the other hand, an alkali stock material such as dolomite is introduced into a wet tower mill 20 from a silo 6 and a part of the prepared water 1 is added to said mill 20 to finely pulverize the alkali stock material while the prepared slurry is sent into the above mentioned mixing tank 23 through a slurry tank 21. Herein, both of them are mixed under stirring by a stirring blade 25 to obtain hard water with predetermined M-alkalinity. The coarse particles in this hard water is separated by a precipitation and separtion tank 26 while treated hard water is recirculated to the mixing tank 23 by a pump 29 and hard water of an upper layer is flooded to be sent to a filter tank 27 where contained SS is removed to obtain purified hard water. This hard water is stored in a tank 9 and taken out by a pump 15 if necessary and a predetermined amount of chlorine gas 16 and sodium hydroxide 17 are added to hard water to obtain drinking water 14.
    • 5. 发明专利
    • SIMULTANEOUS REMOVAL OF NITROGEN OXIDE AND SULFUR OXIDE IN BURNT WASTE GAS
    • JPS54107467A
    • 1979-08-23
    • JP1297178
    • 1978-02-09
    • MITSUBISHI HEAVY IND LTD
    • MATSUMOTO KAZUHIROUGAWA NAOHIKO
    • B01D53/60B01D53/34B01D53/77
    • PURPOSE:NO in burnt waste gas is oxidized to NO2 and washed with aqueous NaOH solution containing antioxidant to remove NOx and SOx. Ca salt is added to the washed solution to precipitate solid which is separated. The filtrate is circulated for reuse. The process effectuates NOx and SOx removal without being affected by O2 in waste gas. CONSTITUTION:Burnt waste gas is transmitted through the cooling dust remover 2 to the oxidizer 3, where NO is oxidized to NO2 by oxidizing agent. The gas is then sent to the cleaning apparatus 6 to be cleaned with aqueous NaOH solution of 10 to 160m mole/1, removing NOx and SOx. The absorbing liquid is sent from the apparatus 6 to the gypsum-substituting apparatus 8, where the liquid is adjusted to pH 10 or greater by adding Ca(OH)2 to precipitate CaSO3, CaSO4 and amino Ca compounds. The liquid-solid separator 9 separates the precipates to send it to the oxidizer 10, and the filtrate to send to the cleaning apparatus 6. In the oxidizer 10, water is added to the precipitates making it slurry, then sulfuric acid is added to the slurry adjusting its pH to 2 to 4, the slurry is then oxidized by air under the pressure of 3 to 5kg/cm to modify CaSO3 to CaSO4 which is separated by the liquid-solid separator. The filtrate is treated in the thermal decomposer 12 at 70 to 200 deg.C to modify amino compounds ino NH4 salts, which is adjusted to pH 10 or greaer in the discharger 13, thereby discharging NH3.
    • 9. 发明专利
    • CONTROL OF CLEAN ROOM
    • JPS62112940A
    • 1987-05-23
    • JP25220185
    • 1985-11-11
    • MITSUBISHI HEAVY IND LTD
    • MATSUMOTO KAZUHIROKAWADA NORIYUKIYOSHIDA TETSUO
    • F24F7/06F24F3/16
    • PURPOSE:To contrive a reduction in energy consumption, by measuring the integrated value of the kinetic momentums of objects moving in a room by a photosensor, and controlling outside-air intake quantity and circulatory ventilation quantity based on the measured value. CONSTITUTION:An SFD photosensor 31 is provided in a room 5. This photosensor comprises silicon solar cells having P-type material members arranged on the surface of an N-type silicon substrate, and measures the integrated value of the kinetic momentums of workers 6 and various apparatus 15. The measured value is inputted to an amplifier 32, the amplified quantity is inputted to a microcomputer 34 through an A/D converter 33, and fans 1A and 9 are controlled based on the measured integrated value of the kinetic momentums to control outside-air intake quantity and circulatory ventilation quantity. The dust concentration C in the room 5 is controlled by controlling the circulating air quantity based on the quantity of dust generated in the room, and the pressure in the room is maintained at a constant value by such a proportional control that the outside air intake quantity (QF) and exhaust quantity (QF') become approximately equal to each other. By this, energy consumption can be reduced.