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    • 2. 发明专利
    • Apparatus and method for preheating cement raw material
    • 预处理水泥原料的装置和方法
    • JP2014015338A
    • 2014-01-30
    • JP2012151592
    • 2012-07-05
    • Kawasaki Heavy Ind Ltd川崎重工業株式会社
    • HAYASHI ISAOICHITANI NOBORUYOSHINAGA AKIHIROKIYOSHIMA KOJI
    • C04B7/44B04C5/081B04C5/26F27D13/00
    • PROBLEM TO BE SOLVED: To improve thermal efficiency of a raw material preheater and to reduce electric power consumption by making a cement raw material be efficiently discharged from the raw material preheater.SOLUTION: In an apparatus 10 for preheating a cement raw material, in which powdery cement raw material 3 is preheated by exhaust gas 2, and the cement raw material 3 mixed in the exhaust gas 2 is separated and collected by cyclones 11-14 and 30, the apparatus 10 is constructed in such a way that each of the cyclones 30 and 11 arranged on the uppermost stage and on the lowermost stage out of the cyclones 11-14 and 30, is equipped with a cylindrical part 16, an upper cone 17 linked to the lower part of the cylindrical part 16, a lower cone 19 linked to the lower part of the upper cone 17 and having a discharge port 18 on the lower part thereof, and an inner cylinder 21 having a lower part linked to the cylindrical part 16 and an outlet part 20 on the upper part thereof, and a height H1 from the discharge port 18 of the lower cone 19 to the lower end of the upper cone 17 is set to be equal to a height dimension in which a downward force working on a particle of the cement raw material 3 in contact with an inclined inner surface 23 of the lower end of the upper cone 17 becomes larger than an upward force, or more.
    • 要解决的问题:提高原料预热器的热效率,并通过使原料预热器有效地排出水泥原料来降低电力消耗。解决方案:在用于预热水泥原料的设备10中,其中 粉末状水泥原料3由废气2预热,混合在废气2中的水泥原料3由旋风分离器11-14,30分离收集,装置10构成为使每个旋风分离器 设置在旋风分离器11-14和30的最上层和最下层的30和11配备有圆筒部16,连接到圆筒部16的下部的上锥17,下锥19 连接到上锥体17的下部并且在其下部具有排出口18,以及具有连接到圆筒部16的下部的内筒21和在其上部的出口部20, 喜 从下锥体19的排出口18到上锥体17的下端的高度H1被设定为与作用在与倾斜的水泥原料3接触的水泥原料3的颗粒上的向下的力的高度尺寸 上锥体17的下端的内表面23变得比向上的力更大。
    • 4. 发明专利
    • ROTARY KILN
    • JP2002327985A
    • 2002-11-15
    • JP2001131962
    • 2001-04-27
    • KAWASAKI HEAVY IND LTD
    • ICHITANI NOBORUHAYASHI ISAOOSAWA HIROAKIMURAO MIKIOHONDA TSUNETOSHIYOSHINAGA AKIHIRO
    • F27B7/22
    • PROBLEM TO BE SOLVED: To obtain a rotary kiln, in which wear to be caused by sliding between a tire and under-tire liners, guide pieces of the liners, etc., is prevented, the service lives of those members are prolonged, works for maintenance and expense for repairing are reduced, and replacement of the under-tire liner and keys is facilitated. SOLUTION: The tire 3 has recessed grooves 4 formed peripherally in the inside periphery at intervals. An under-tire liner 5 is removably attached peripherally at intervals on a drum 2 under the groove 4. The liner 5 is protruded partly axially from both sides of the tire 3, and is supported by liner holders 6 at both ends thereof. A liner guide 8 is placed astride adjacent under-tire liners 5 on the drum 2 in the outside of the tire 3. The guide 8 is welded on the drum 2. A guide piece 9 is secured in contact with peripheral faces on both sides of the tire 3 on the liner guide 8. A key 7 is secured almost axially on the under-tire liner 5 below each groove 4. A wedge 13 is inserted between the side face of each groove 4 and the side face of the key 7.