JPS621198B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION According to the present invention, a sealing knife edge 6 that is in sliding contact with the outer circumferential surface 2b of the furnace lid main body portion 2a is attached to the furnace frame 4 so as to be slidable in the direction from and to the furnace frame 4. The present invention relates to a furnace lid equipped with a tapping metal fitting 12 for moving the metal to the furnace frame 4 side.

The above furnace lid has a structure in which the knife edge is in contact with the outer circumferential surface of the furnace lid main body, so it can be applied even if the width of the furnace frame is narrow, and is particularly advantageous when modifying an existing furnace to improve sealing performance. However, in the conventional method, the hammering metal fitting was tightened and fixed to the hearth body part, and the knife edge was pressed against the hearth body part by the hammering metal fitting, so the resistance to sliding of the knife edge was large, and as a result, manual adjustment was required. It is difficult or impossible to bring the knife edge into contact with the furnace frame reliably and under a predetermined pressure for a long period of time without causing damage, and in addition, the knife edge is deformed or damaged due to bulge due to thermal distortion of the furnace frame. There were drawbacks such as difficulty in removing foreign matter caught between the knife edge and the furnace frame.

In view of the above-mentioned circumstances, the present invention brings the knife edge into contact with the furnace frame automatically and reliably over a long period of time at a predetermined pressure without impairing the above-mentioned advantage that it can be applied to narrow furnace frames. In addition, damage to the knife edge due to thermal distortion of the furnace frame can be reliably avoided.Furthermore, even if a foreign object is caught between the knife edge and the furnace frame, the knife edge can be easily and reliably removed from the furnace. The purpose is to be able to slide into contact with the frame.

Next, embodiments of the present invention will be described with reference to illustrative drawings.

As shown in FIG. 1, a furnace lid 2 is attached to a coke outlet of a coke oven 1, and a pair of upper and lower bolts 3a, 3b attached to the coke outlet so as to be rotatable are attached to a steel furnace frame 4 around the coke outlet. It is detachably attached to the furnace frame 4 by hooking it on the metal fittings 5.

To configure the furnace lid 2, as shown in FIGS. 2 and 4, an outer peripheral surface 2 is provided on the furnace lid body portion 2a.
A sealing knife edge 6 that is slidable in the far and near directions with respect to the furnace frame 4 while in sliding contact with the furnace lid 2 is attached to the first bullet 7 so as to extend over the entire length of each long side portion of the furnace lid 2. Therefore, the knife edge 6 is pressed against the outer circumferential surface 2b of the hearth main body portion 2a, and
As shown in FIGS. 2 and 3, the bolt 8, nut 9, spring washer 11, and the overlapping first and second fittings 10, 25,
The hammering metal fitting 12 is provided in a slidable manner on the furnace lid body portion 2a and in contact only with the rear edge 6a of the knife edge 6, and further, as shown in FIGS. 2 and 5, the knife edge 6 is attached to the furnace frame. 2nd press to the 4th side
The projectile 13 is attached to the first mounting hardware 10, and the protrusion 12 of the hammer 12 is attached to the first mounting hardware 10.
a, and the second bullet 13 can be slid only toward the furnace frame 4 side using the hammering metal fitting 12.

Both end portions 10a and intermediate portion 10b of the first fitting 10 are brought into contact with the furnace cover main body portion 2a, and a gap 26 is formed in order to reduce the frictional resistance to sliding of the tapping fitting 12 to almost zero. The knife edge 6 is configured to be able to slide against the second bullet 13 as the frame 4 expands. Incidentally, even if the gap 26 is made almost zero, it is sufficient if the frictional resistance against the sliding of the striking metal fitting 12 is set small enough to allow the sliding of the knife edge 6 against the second bullet 13. Furthermore, the specific configuration of the mounting member 10 can be changed in various ways.

As shown in FIGS. 2 and 4, the first bullet 7 is in a state in which it rotates as it slides with respect to the swing lever 14 attached to the second mounting hardware 25 and the knife edge 6. The swing lever 14 consists of a roller 15 attached to one end of the swing lever 14 so as to be in contact with the swing lever 14, and a spring 16 that biases the roller 15 toward the knife edge 6 using the furnace lid body portion 2a as a reaction force point. By adjusting the mounting position of the angle hardware 18 screwed onto the bolt 17 which is slidably fitted on the bolt 17, the pressing force of the knife edge 6 against the furnace cover main body portion 2a by the roller 15 is adjusted. In addition, the spring 16 mounting position is spaced further apart from the pivot mounting bolt 19 of the swing lever 14 than the roller 15 mounting position, so that the pressing force of the roller 15 can be increased.

As shown in FIGS. 2 and 5, the second bullet 13 has a cylindrical body 2 screwed onto the first mounting hardware 10.
0, the rod 2 slidably attached to the cylindrical body 20
1. The pressing member 22 is attached to the rod 21 while in contact with the rear end edge 6a of the knife edge 6, and the cylindrical body is pressed against the rod 21 to urge the pressing member 22 toward the knife edge 6. The knife edge 6 is made up of a spring 23 and the like built into the cylinder body 20, and is configured so that the pressing force of the knife edge 6 against the furnace frame 4 by the pressing member 22 can be adjusted by means of a bolt 24 screwed into the cylinder body 20.

As mentioned above, it is convenient to use the roller 15 as the pressing part of the first bullet machine 7 because the resistance to the sliding of the knife edge 6 by the second bullet machine 13 can be significantly reduced. The specific configuration of the aircraft 7 can be changed in various ways, and the specific configuration of the second bullet aircraft 13 can also be changed in various ways.

Further, the relative arrangement and number of the first bullet machine 7, the second bullet machine 13, and the hammering metal fittings 12 can be changed arbitrarily,
Furthermore, even if the knife edge on the short side of the furnace lid can be adjusted in position using the conventional tapping metal type,
Alternatively, it may be attached in a slidingly biased state similar to the knife edge 6 on the long side.

Furthermore, the present invention can be applied to lids of various types of furnaces.

In summary, the present invention provides the above-mentioned hearth lid,
A first bullet 7 presses the knife edge 6 against the outer peripheral surface 2b, and a first bullet 7 presses the knife edge 6 against the furnace frame 4.
the second bullet device 13 that presses the side, and the hammering metal fitting 12
Mounting member 1 equipped with a guide groove for guiding the part in a loosely fitted state
0, and the second ammunition 1 is mounted on this mounting member 10.
3 is integrally attached, and the mounting member 10 is pressed and fixed to the outer circumferential surface 2b with a fixture 8 so as to be movable near and far with respect to the furnace frame 4, and the hammering metal fitting 12 includes:
It is characterized by forming a portion 12a that comes into contact with the upper edge of the mounting member 10, and its effects are as follows.

That is, by providing the first bullet 7, it is easy to bring the knife edge 6 into contact with the furnace lid main body portion 2a with an appropriate pressure that allows the knife edge 6 to slide sufficiently while providing a sufficient seal. be. In addition, since the tapping fitting 12 is guided in a loosely fitted state by the mounting member 10, and the tapping fitting 12 can be freely moved near and far with respect to the furnace frame 4, even if the furnace frame 4 bulges due to thermal distortion, the knife edge can be removed. 6 can be slid so that no excessive external force is applied to it, and damage to the knife edge 6 can be reliably prevented, and when foreign matter such as coke is caught between the knife edge 6 and the furnace frame 4. The foreign object can be easily and reliably removed by applying a strong blow to the foreign object through the hammering tool 12. Furthermore, when foreign matter such as coke is trapped, only the knife edge 6 and the tapping metal fitting 12 are separated from the furnace frame 4, and the position of the mounting member 10 to which the second bullet 13 is mounted does not change. Therefore, although the pressing force of the second bullet 13 can normally be adjusted by applying a blow to the striking metal fitting 12, when a foreign object is caught, the striking metal fitting 12 can be adjusted as described above.
Even if a blow is applied to the second bullet, the position of the second bullet 13 does not change.
102882 (such as the closed structure on the side of the furnace lid), this makes it possible to prevent the knife edge 6
The knife edge 6 is automatically and reliably applied to the furnace frame 4 automatically and over a long period of time while maintaining the configuration that allows application to the narrow furnace frame 4 without causing a change in the pressing force against the furnace frame 4. It becomes easy to bring the furnace lid body part 2a into contact with the furnace frame 4 at a predetermined pressure.
It is now possible to effectively prevent pollution and work environment problems caused by gas leakage from gaps between the

[Brief explanation of the drawing]

The drawings show an embodiment of the furnace lid according to the present invention, and the first
The figure is a partially omitted front view showing the entire furnace cover and its installed state, Figure 2 is a front view of the main parts, Figure 3 is a sectional view taken along the - line in Figure 2, and Figure 4 is a - line in Figure 2. The sectional view, FIG. 5, is a sectional view taken along the - line in FIG. 2. 2a... Furnace lid body part, 10... Mounting member, 2
b... Furnace cover outer circumferential surface, 4... Furnace frame, 6... Knife edge, 7... First bullet machine, 12... Hitting metal fittings, 13
... Second bullet machine, 14 ... Swing lever, 15 ... Roller, 16 ... Spring.

Claims (1)

[Claims] 1. To attach the sealing knife edge 6 that is in sliding contact with the outer circumferential surface 2b of the furnace lid main body portion 2a so as to be slidable in the distance direction with respect to the furnace frame 4, and to move the knife edge 6 toward the furnace frame 4 side. In the furnace lid equipped with a hammering metal fitting 12, a first bullet device 7 for pressing the knife edge 6 against the outer circumferential surface 2b;
A second bullet device 13 for pressing the knife edge 6 toward the furnace frame 4 side and a mounting member 10 having a guide groove for guiding the hammering metal fitting 12 in a loosely fitted state are provided. The bullet machine 13 is integrally attached, the mounting member 10 is pressed and fixed to the outer circumferential surface 2b with a fixture 8 so as to be movable near and far with respect to the furnace frame 4, and the mounting member 1 is attached to the hammering metal fitting 12.
A furnace lid characterized in that a portion 12a is formed to abut on the upper edge of the furnace lid.