JPS5848341Y2 - Taphole opening machine water leakage prevention device - Google Patents

Description

[Detailed explanation of the idea] The present invention relates to a water leakage prevention device for a tap iron opening machine.

Traditionally, when tapping a blast furnace, a taphole opening machine is used to excavate the taphole plugging material filled in the taphole with a drill, and then a hollow metal rod is used instead of the taphole plugging material, which is then further excavated. The taphole was opened to tap the iron.

However, there is a danger that cooling water may gush out from numerous gaps in the drill shank, part of the tapping hammer, etc. of the taphole opening machine used to open the taphole, fall onto the tapwater, and cause a steam explosion. .

To explain this with reference to FIGS. 1 and 2, a metal rod or drill 4 is supported by a hammer shank 7, cooling water is supplied from a cooling water hole 5, and a hammer 6 is provided. Mouth opening machine D (see schematic diagram in Figure 3),
Although not shown, it is supported by a suitable support and installed in the tap hole 1 of the blast furnace.

Then, a long metal rod or drill 4 is sent toward the tap hole 1, and the hammer 3 is driven to drill through the combustion-hardened mud inside the tap hole 1.

In this case, as described above, cooling water blows out from the gap between the metal rod or drill 4 and the hammer shank 7 and falls onto the tap trough 2.

When this falling cooling water comes into contact with the hot tapped iron, it creates an abnormally dangerous situation in which a steam explosion occurs.

The present invention is a taphole opening machine water leakage prevention device, which was made for the purpose of preventing shallow water in the taphole opening machine described above, and includes A water collecting cover having a water collecting hopper is attached to the water collecting cover, and a water collecting ring having a hole through which a metal rod or a drill is inserted is installed at the tip of the water collecting cover in a detachable manner.

Taphole opening machine shallow water prevention device according to the present invention (hereinafter also referred to as the device according to the present invention).

) will be specifically explained using examples shown in the drawings.

That is, FIG. 4 is a schematic sectional view showing an example of the device according to the present invention, in which a drain pipe 12 is attached so as to surround both the end of the hammer 6 and the hammer shank 7 at the end of the hammer 6. A water collection cover 8 having a water collection hopper 9 is attached, and a water collection ring 10 having a hole 10'' into which a metal rod or drill 4 is inserted is attached to the tip of this water collection cover 8.
A structure is shown in which a removable device is installed.

Therefore, the water collection ring 10 is attached to the water collection cover 8.
The stopper 11 fixed to the water collecting ring 10 is passed through the hole 10' made in the water collecting ring 10, and then the water collecting ring 10 is turned to the right or left.

In this case, the relationship between R and l of the hole 10' of the water collection ring 10 and the diameter r of the stopper 11 is such that R>r>1.

Of course, the head 11' of the stop 11 is smaller than radius R.

To explain the embodiment of the device according to the present invention having such a configuration, when the taphole shedding machine equipped with the device according to the present invention is installed in the position shown in Fig. 1 and operation is started, the fourth As shown in the figure, the cooling water spouted from the hammer shank 7 flows in the direction of the arrow, is collected in a water collection hopper 9, and is drained to another location through a drain pipe 12.

Therefore, since the cooling water does not drip onto the tap trough 2, there is no danger of steam explosion.

As explained above, since the shallow water prevention device for the tap iron taper according to the present invention has the above-mentioned configuration, it collects and drains the cooling water spouted from the drill shank and the tapping hammer. There is no risk of explosion because it does not fall into the tap trough, and it is also possible to attach metal rods or drills.
This has the effect that removal work can be easily performed.

[Brief explanation of drawings]

Figures 1, 2, and 3 are side views, plan views, and schematic sectional views showing the installation status of a conventional taphole shedding machine, and Figure 4 is a taphole shedding machine according to the present invention for preventing shallow water. A schematic cross-sectional view of the device,
Figures 5a and 5l) are schematic diagrams showing the state of the holes in the water collecting ring. 1 - Tap hole, 2 - Tap sluice, 3 - Hammer (tapping)
, 4 - metal rod or drill, 5 - cooling water hole, 6 - hammer, 7 - hammer shank, 8 - water collection cover, 9 - water collection hopper, 10 - water collection ring, 11 - stopper, 12 - drain pipe .

Claims (1)

[Scope of utility model registration request] so as to surround one end of the hammer and the hammer shank,
A taphole characterized in that a water collection cover with a water collection hopper is attached at the bottom, and a water collection ring having a hole through which a metal rod or drill is inserted is removably installed at the tip of the water collection cover. Opening machine shallow water prevention device.