JPS587911B2 - hearth cover - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides a sealing knife edge that is attached to a furnace lid main body portion and that is capable of sliding in a direction toward and away from the furnace lid while being in sliding contact with the outer peripheral surface of the furnace lid body. was manually slid to the furnace frame side. This invention relates to a furnace lid equipped with a pressing tool.

The above-mentioned furnace lid has a structure in which the knife edge contacts the outer peripheral surface of the furnace lid body, so it can be applied even if the width of the furnace lid is narrow, and is particularly advantageous when modifying an existing furnace to improve sealing performance. However, in the conventional method, the knife edge was pressed against the oven lid body by tightening the pressing tool to the oven lid body, so there was a large resistance to the sliding of the knife edge toward the oven frame side. As a result, it has been difficult or impossible to bring the knife edges into contact with each other reliably and with a predetermined pressure over a long period of time without manual adjustment.

In view of the above-mentioned circumstances, the present invention has been developed to bring a knife edge into contact with a furnace surface automatically and reliably over a long period of time at a predetermined pressure without sacrificing the above-mentioned advantage that it can be applied to a narrow furnace surface. The purpose is to make it easy and reliable.

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

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.

As shown in FIGS. 2 and 4, the furnace lid 2 is configured such that it slides in the distance direction relative to the furnace frame 4 while being in sliding contact with the outer peripheral surface 2b of the furnace lid main body portion 2a. A possible sealing knife edge 6 is provided over the entire length of each long side portion of the furnace lid 2, and the knife edge 6 is pressed against the outer circumferential surface 2b of the furnace lid main body portion 2a by the first bullet 7,
As shown in FIGS. 2 and 3, the hammering metal fitting 12 can be slid and fixed to the furnace cover main body part 2a by bolts 8, nuts 9, washers 10, and spring washers 11, and is attached to the rear of the knife edge 6. The knife edge 6 is provided so as to be in contact with only the edge 6a, and the knife edge 6 is configured to be able to slide toward the furnace frame 4 side by artificially applying an impact to the striking metal fitting 12, and further, as shown in FIGS. 2 and 5. As shown in the figure, the second bullet 13 that presses the knife edge 6 toward the furnace frame 4 is attached to the portion 12b of the hammering metal fitting 12 that connects the pressing portions 12a to each other in a state where it slides integrally with the tapping metal fitting 12. It is installed.

As shown in FIGS. 2 and 4, the first bullet 7 has two swing levers 14 attached to each of the washers 10.
, a roller 15 attached to one end side of the swing lever 14 so as to be in contact with the knife edge 6 while rotating as the knife edge 6 slides; By adjusting the attachment position of the nut 18 to the bolt 17, which is made up of a spring 16 etc. that biases the knife edge 6 side and is slidably fitted to the swing lever 14, the furnace lid body portion of the knife edge 6 is moved by the roller 15. The pressing force to 2a can be adjusted, and
4-ra 1 for the pivot mounting bolt 19 of the swing lever 14
The spring 16 mounting position is spaced far apart from the spring 16 mounting position so that the pressing force of the roller 15 can be increased.

As shown in FIGS. 2 and 5, the second ammunition aircraft 13 has
A cylindrical body 20 screwed onto the connecting portion 12b of the hammering metal fitting 12
, a rod 21 slidably attached to the cylindrical body 20, a pressing member 22 attached to the rod 21 in contact with the rear edge 6a of the knife edge 6, and a pressing member 22 on the knife edge 6 side. It consists of a spring 23, etc., which is housed inside the cylindrical body 20 in a state where it acts on the pad 21 in order to bias it.
The pressing member 22 is tightened by the bolt 24 screwed onto the cylindrical body 20.
The structure is such that the pressing force of the knife edge 6 against the furnace frame 4 can be adjusted.

In addition, as mentioned above, the pressing part of the bullet machine 7 is connected to the roller 15.
This is convenient because it can significantly reduce the resistance to the sliding of the knife 6 by the second bullet 13, but the specific configuration of the first bullet 7 can be changed in various ways, and the second bullet 13 can be
The specific configuration of can also be changed in various ways.

As mentioned above, if the initial position of the knife edge 6 is set using the hammering metal fitting 12, it is convenient because it is simple in terms of structure and operation. may also be provided, and these are collectively referred to as the pressing tool 12.

In addition, the relative arrangement and number of the first bullet machine 7, second bullet machine 13, and pressing tool 12 can be changed arbitrarily, and furthermore, the knife edge on the short side of the furnace lid is of the conventional hammering metal type. 1 so that the position can be adjusted, or it may be attached in a sliding biased state similar to the knife edge on the long side portion.

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

In summary, the present invention provides the above furnace lid with a first bullet device 7 that presses the knife edge 6 against the outer circumferential surface 2b of the furnace lid main body portion 2a, and also presses the knife edge 6 against the furnace frame 4 side. The second bullet 13 to press the pressing tool 1
It is characterized in that it is attached to 2 so that it slides integrally with it.

That is, by providing the first bullet 7, it becomes 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. By sliding the second bullet device 13 integrally with the pressing tool 12, the pressing force of the knife edge 6 by the second bullet device 13 can be applied as set regardless of the initial position setting of the knife edge 6 by the pressing tool 12. As a result, the knife edge 6 can be slid against the furnace lid main body portion 2a, and the knife edge 6 can be applied to the furnace frame 4 with a narrow width while maintaining the configuration that allows the knife edge 6 to be applied to the furnace frame 4 with a narrow width. 4 automatically and reliably over a long period of time at a predetermined pressure, effectively preventing pollution problems and work environment problems caused by gas leakage from the gap between the furnace lid main body part 2a and the furnace frame 4. I can now do it.

In addition, the first type is simply small, lightweight, and easy to configure.
Since it is sufficient to simply add the second bombs 7 and 13 to the conventional type, it is now possible to remodel the existing furnace lid extremely easily and economically.

[Brief explanation of the drawing]

The drawings illustrate embodiments of the furnace lid according to the present invention, and FIG. 1 is a partially omitted front view showing the entire furnace lid and its attached state, and FIG.
The figure is a front view of the main part, Figure 3 is a sectional view taken along the line ■-■ of Figure 2,
4 is a sectional view taken along the line IV--IV in FIG. 2, and FIG. 5 is a sectional view taken along the line v--v in FIG. 2a... Furnace lid body part, 2b... Furnace lid outer peripheral surface, 4... Furnace frame, 6... Knife edge, 7... First bullet machine, 12... Pressing tool, 13... Second bullet machine, 14...Aligned lever, 15...
...Lola, 16...Spring.

Claims (1)

[Scope of Claims] 1. A sealing knife edge 6 is attached to the oven cover main body portion 2a, and is capable of sliding in a direction toward and away from the oven frame 4 while being in sliding contact with the outer circumferential surface 2b of the oven cover body portion 2a. The furnace lid is equipped with a pressing tool 12 for sliding the furnace frame 4 side by manual operation, and the furnace lid
A first bullet 7 is provided that presses the knife edge 6 against the outer circumferential surface 2b of the furnace lid body portion 2a, and the knife edge 6 is pressed against the furnace frame 4.
A furnace lid characterized in that a second bullet device 13 for pressing the side is attached to the pressing tool 12 in such a manner that it slides integrally therewith. 2. The first bullet device 7 is provided with a roller 15 that contacts the knife edge 6 in a rotating state as it slides. Hearth lid. 3 Swing lever 14 connected to the furnace lid main body portion 2a
At the same time, the roller 15 is attached to the swing lever 1.
4, a spring 16 is attached, which is located on the opposite side of the roller 15 with respect to its swing center, and which biases the roller 15 toward the knife edge 6 side using the furnace lid body portion 2a as a reaction force point. The furnace lid according to claim 2, characterized in that the furnace lid is connected in a row so that the force can be freely adjusted.