METHOD FOR CALCINING PELLET-SHAPED CALCIUM HYDROXIDE

    公开(公告)号:KR790001442B1

    公开(公告)日:1979-10-13

    申请号:KR750000276

    申请日:1975-02-14

    Applicant: HOECHST AG

    Abstract: Spherical or elipsoidal Ca(OH)2 was heated in a down draft of gasses from a series of burners while moving on a travelling grate to produce a product suitable for the manuf. of CaC2. The Ca (OH)2 was fed onto the grate from a hopper and subsequently covered by a layer of granular calsite with particle size of 10-30mm whose thickness, less than 50% of the whole, should be increased with an increase of the size(10-40cm3) of the Ca(OH)2. The temp. of the top layer was 1,000-1,100≦̸C, and that of the gas leaving below 300-400≦̸C.

    CONSECUTIVE DRY METHOD FOR PARTICLE TYPE MOIST MATERIAL

    公开(公告)号:KR810000548B1

    公开(公告)日:1981-05-27

    申请号:KR740004276

    申请日:1974-12-16

    Applicant: HOECHST AG

    Abstract: Continuous drying of damp granular goods uses a burning gas at such a temp. that the temp. difference between the waste gas and dried goods is 150 - 200≦̸C pref. 180≦̸C. A part of the damp granular goods is formed into a vertically trickling layer and is dried by the waste gas of the rotating drum flowing through the layer. The pre-purified gas is fed to an electrostatic separator(17). The thickness of the layer and its cross section as well as the spectrum of the granules in the layer are chosen in such a way, that a reduced press. of 5 - 20 mm pref. 10 mm water column exists in the rotating drum(1).

    5.
    发明专利
    未知

    公开(公告)号:NO750492L

    公开(公告)日:1975-08-19

    申请号:NO750492

    申请日:1975-02-14

    Applicant: HOECHST AG

    Abstract: Pellet-shaped calcium hydroxide forming part of the mixture of flux and ores in electrothermal calcium carbide furnaces is calcined. The pellets are made by granulating or briquetting moist calcium hydroxide, delivered to a sintering grate and conveyed thereon through a heating zone, wherein high temperatures are produced by the combustion of gas, above the grate, and wherein the combustion gas is exhausted, below the grate. The calcium hydroxide pellets are more especially placed on to the grate, covered with a layer of broken limestone and the undried pellets are directly conveyed through the heating zone, in an apparatus for carrying out the process.

    PROCESS AND APPARATUS FOR CALCINING PELLETSHAPED CALCIUM HYDROXIDE

    公开(公告)号:IN141238B

    公开(公告)日:1977-02-05

    申请号:IN211CA1975

    申请日:1975-02-04

    Applicant: HOECHST AG

    Abstract: Pellet-shaped calcium hydroxide forming part of the mixture of flux and ores in electrothermal calcium carbide furnaces is calcined. The pellets are made by granulating or briquetting moist calcium hydroxide, delivered to a sintering grate and conveyed thereon through a heating zone, wherein high temperatures are produced by the combustion of gas, above the grate, and wherein the combustion gas is exhausted, below the grate. The calcium hydroxide pellets are more especially placed on to the grate, covered with a layer of broken limestone and the undried pellets are directly conveyed through the heating zone, in an apparatus for carrying out the process.

    PROCESS AND APPARATUS FOR CALCINING PELLET-SHAPED CALCIUM HYDROXIDE

    公开(公告)号:ZA75704B

    公开(公告)日:1976-01-28

    申请号:ZA75704

    申请日:1975-02-04

    Applicant: HOECHST AG

    Abstract: Pellet-shaped calcium hydroxide forming part of the mixture of flux and ores in electrothermal calcium carbide furnaces is calcined. The pellets are made by granulating or briquetting moist calcium hydroxide, delivered to a sintering grate and conveyed thereon through a heating zone, wherein high temperatures are produced by the combustion of gas, above the grate, and wherein the combustion gas is exhausted, below the grate. The calcium hydroxide pellets are more especially placed on to the grate, covered with a layer of broken limestone and the undried pellets are directly conveyed through the heating zone, in an apparatus for carrying out the process.

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