| 摘要 |
<p>PURPOSE: An apparatus for digging and sealing a residual iron hole of a blast furnace main trough is provided in which molten materials are easily discharged, and the residual iron holes are completely sealed by enlarging diameter of an initial residual iron hole to discharge molten materials always remained in the main trough. CONSTITUTION: In an apparatus for digging and sealing a residual iron hole of a blast furnace main trough so as to discharge molten materials in the main trough by enlarging diameter of the residual iron hole of the blast furnace main trough and seal the opened residual iron hole, the apparatus comprises an air-tightness maintenance part inserted into the main trough; an inner wedge part which is inserted into the air-tightness maintenance part to seal gaps inside the residual iron hole; and an auxiliary device part which is equipped with reversing hammer function and connected to the inner wedge part through a socket attached to the front of a length variable rod, wherein the air-tightness maintenance part comprises a closed outer cylinder pipe(30) the front of which is consisted of an outer cylinder pipe head(30b), and on the outer circumference of which a plurality of through holes(30a) are formed, and a guide outer cylinder pipe(37) which is connected to the closed outer cylinder pipe(30) with a circular support plate locked to a support iron plate(10b) of the main trough being therebetween, and the inner wedge part comprises a wedge(50) equipped with a wedge body(50a) on the outer circumference of which a screw(51) and a groove(52) are formed, and a body(54) at front of which a wedge seat(53) is formed, and at the rear of which a hook(56) is formed so that the body(54) is connected to the wedge body(50a).</p> |
