HEAT RESISTING PROPERTY ROUND COVER DEVICE OF FLOW ROAD FOR VENTILATE HOLE OF A BLAST FURNACE

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Device closed flow path blower blast furnace Pig iron the device inner surface round shape to aluminum coating heat-resistant fibrous round cover device relates to blast furnace-Iminothiazoline derivative, its salt and equipment for inhibiting gene expression high temperature, high pressure hot wind to the ventilation port transferred to a blast furnace having a function of 2005 of blast pipe for shaft furnaces winnowing machine euro closed device round shape heat-resistant fibrous coating aluminum inner surface relates to round cover device. Device for shaft furnaces Pig iron of the device closed winnowing machine euro blast pipe of aluminum inner surface round shape round cover device heat-resistant fibrous coating a tuyere of blast furnace (110) blast pipe of which they are inserted to (120) formed on the opposite side of tuyere observation opening (124), ore is formed in the form of a certain length, the main rod (260) and a, while inserted into the main said units are to a fixed fitted in conjunction with the stator through a length of the sliding rod (230) and a, installed end of sliding rod said fixing means (241) a dilator inserted along vertically hopper units (240) and a, blower flow path (126) to closely a plurality of extension member (250) and said closure means round shape heat-resistant fibrous coating aluminum inner surface round cover device (245) and said closure means support (290) and the outer circuit turns on/said main rod (230) is inserted into a mounting hole inside said sliding rod, and the other end is supported closure means (230) in a predetermined position, a spring support stopper (231) is carried by sliding rod (230) is elastically bent is rotated to a of blast furnace adapted to move the sliding rod (230) is larger than the distance issue burns re- (235) characterized in that including a.