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双钟一阀式炉顶是一种较好的钟阀式炉顶。特点是密封阀的数量最少,处在温度较低的顶部,检修更换方便。采用了具有阀门的窄口受料漏斗和特殊型式的聚合布料器;布料器的尺寸小、转速低,每次布半批料,既可以均匀布料,又可以定点下偏料;布料器在大气环境中工作,不需要填料密封。大小钟采用双拉杆和扁担梁吊挂,小钟更换方便。大钟置于等压气体内,并做成自生料垫式;大钟不起密封作用,只起存料布料作用;这种大钟既不受煤气吹损,也不受炉料的冲击和磨损,有较长寿命。
Double bell-valve roof is a better bell-type roof. Features is the smallest number of sealed valves, at the top of the lower temperature, easy maintenance. The use of a valve with a narrow mouth by the funnel and special type of aggregator distributor; distributor of small size, low speed, semi-batch material per cloth, both uniform cloth, but also under the point of bias material; cloth in the atmosphere Environment work, do not need packing seal. The size of the bell with double rod and pole beam hanging, small bell replacement easy. The clock is placed in an isobaric gas, and made of self-material cushion type; can not afford to seal the clock, only play the role of stock cloth; this bell is neither blown by the gas, nor by the impact of the charge and wear, Have a longer life expectancy.