| 摘要 |
PURPOSE: A spray apparatus for repairing the wall of a blast furnace is provided to minimize rebound loss and make it unnecessary to exchange a spray nozzle by repairing the furnace wall as maintaining an appropriate distance between the spray nozzle and the furnace wall during spraying of a refractory material. CONSTITUTION: In a spray apparatus for repairing the wall of a blast furnace which is removably mounted on the lower part of a rotation(10) so as to spray a refractory material onto the furnace wall, the spray apparatus comprises a spray part spraying a refractory material sent via a flexible hose(30) through a spray nozzle(31); a control pipe part(50) in which ball bearings and guide bearings(51,52) are attached to both ends of a certain sized penetration hole formed body, a groove is formed at the middle lower side of the body, and a rib, a connection rod and screw part are formed on the middle upper side of the body; a length induction pipe part(90) to the upper part of which a guide(91) is attached, to the lower part of which a horizontal gear(92) is attached, which is reciprocated through a penetration hole of the control pipe part(50), and at the rear of which a weight(94) is installed; a driving part equipped with a rotation gear engaged with the horizontal gear(92) of the length induction pipe part(90) through the groove at the lower part of the control pipe part(50), and a driving motor(73) rotating the rotation gear; and a sensor part consisting a distance measuring sensor(80) formed at one side of the lower part of the rotation(10), and a measuring plate having a certain size(81) formed at the upper part of the spray nozzle(31).
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