JPH0711151Y2 - Furnace lid sealing device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention attaches a strip-shaped sealing member to a furnace lid in a posture in which one end side in the short side direction is in pressure contact with a furnace frame or a furnace lid main body, and The present invention relates to a furnace lid sealing device in which a pressing tool that pushes the other end side in the short side direction toward the furnace frame or the furnace lid main body is attached to the furnace lid.

[Conventional technology]

Conventionally, as shown in FIG. 5, the furnace lid (31) and the seal member (32) are made of stainless steel, and tar and pitch are attached to the inner surface of the furnace lid (31) and the seal member (32). No special measures have been taken to prevent it (eg
54-83901 publication].

[Problems to be solved by the device]

However, especially when a large amount of tar or pitch is likely to adhere to the inner surface of the seal member (32) in a short period of time, as in a coke oven, frequent maintenance is required to maintain a good closed state of the furnace lid (31). In addition, tar and pitch must be removed from the seal member (32), and since the tar and pitch adhere strongly to the seal member (32), removal work is difficult and a great deal of effort is required for maintenance work. There was a drawback to say.

An object of the present invention is to prevent tar and pitch from adhering to the inner surface of the seal member in the furnace, and to easily and quickly remove tar and pitch even when adhering.

[Means for Solving the Problems]

A characteristic configuration of the present invention resides in that the inside surface of the furnace of the band-shaped seal member that is pressed against the furnace frame or the furnace lid main body by pressing is covered with fluororesin, and the operation and effect thereof are as follows.

[Action]

In other words, fluororesin is difficult to attach tar and pitch,
Further, even if tar or pitch adheres to the fluororesin, its adhesion is extremely weak, and the tar and pitch can be removed extremely easily and quickly by an appropriate means such as human power or blowing compressed air.

[Effect of device]

As a result, in order to clean the seal member so that the sealing property is not hindered by the adhesion of tar or pitch, the cleaning may be carried out at a low frequency, for example, once every several days to several tens of days. Tar and pitch can be removed very easily and rapidly, and the labor and cost required for maintenance of the furnace lid can be greatly reduced.

〔Example〕

 Next, examples will be shown.

As shown in FIG. 1, the coke outlet of the coke oven (1) is closed vertically by a long and narrow rectangular furnace lid body (2a), and the bars (3a) attached to the furnace lid body (2a) near the upper and lower ends respectively. ，
The furnace lid body (2a) is fixed to the coke oven (1) by hooking (3b) on a locking metal fitting (5) provided on the cast iron furnace frame (4) around the coke attachment port.

A seal portion including a strip-shaped spring plate (21) and a strip-shaped seal member (22) extending over the entire circumference of the furnace lid main body (2a), and a pressing tool (23) for pressing the seal member (22) against the furnace frame (4) and the like. It is provided on the furnace lid body (2a).

A small lid (2b) that opens and closes the leveling port is attached to the upper part of the furnace lid main body (2a) with a swing arm (10), and the small lid (2b) is opened to install a coke leveling tool in the furnace (1). The details of the small lid (2b) will be described below with reference to FIGS. 2 to 4.

The swing arm (10) is attached to the furnace lid main body (2a) by a hinge (11) so as to swing left and right, and the connecting member (6) is connected with three bolts (13) to swing the swing arm (10). A spring (24) is provided between the connection member (6) and the connection member (6) so as to separate them from each other, and the small lid (2b) is connected to the connection member (6) with four bolts (26). is there.

When viewed from the front, the connecting member (6) is formed in a substantially cruciform shape extending in the diagonal direction of the substantially quadrangular small lid (2b) to reduce the weight of the connecting member (6).

The strip-shaped sealing member (7) is attached to the entire periphery of the small lid (2b) in an airtight manner by welding in a posture in which one end side in the width direction thereof is pressed against the furnace lid main body (2a). The belt-like reinforcing member (9) is attached to the entire circumference of the small lid (2b) by welding in such a manner as to project to the opposite side.

The inside of the furnace of the small lid (2b) and the seal member (7) is entirely covered with a fluororesin (19) so that tar and pitch are unlikely to adhere to the small lid (2b) and the seal member (7), and , The attached tar and pitch can be easily removed. Further, by making the connecting member (6) substantially cross-shaped, heat dissipation from the small lid (2b) is promoted and the durability of the fluororesin (19) is improved.

Eight pressing tools (8) for pressing the seal member (7) against the furnace lid body (2a) are arranged and attached to the ends of the substantially cross-shaped connecting member (6), two pressing tools (8). A cylindrical case (12) integrally formed with the connecting member (6) to form 8).
A pressing member (15) contacting the reinforcing member (9), and
A spring (14) for pushing the pressing member (15) to the reinforcing member (9) side is provided, and the reaction member (16) of the spring (14) is screwed to the case (12) to remove the reaction member (16). A rod (17) integrally connected to the pressing member (15) configured so that the pressing force of the spring (14) can be adjusted by changing the mounting position.
Further, a stop bolt (18) for preventing the pressing member (15) from coming off when it hits the reaction force member (16) is screw-connected.

Attach the engaging member (29) to the locking part (10a), which is provided on the free end side of the swing arm (10) so that it can be engaged and disengaged, on the furnace lid body (2a), and open and close the small lid (2b). It is configured to be fixed in a closed state.

[Another embodiment]

 Next, another embodiment will be described.

A fluorine resin (19) may be coated on the inner side surfaces of the belt-shaped spring plate (21) and the belt-shaped sealing member (22) attached to the furnace lid body (2a), and therefore, the sealing members (7), (22) ) And pressing tools (8), (23) are collectively referred to as the furnace lid (2), and their mounting configurations can be changed appropriately.

The area covered with the fluororesin (19) may be at least the entire inside surface of the seal members (7) and (22), and the inside surface of the small lid (2b) and the strip-shaped spring plate (21) may be covered. May be provided only in the portions close to the seal members (7) and (22) or may be omitted entirely.

It should be noted that reference numerals are added to the claims of the utility model for convenience of comparison with the drawings, but the present invention is not limited to the configuration of the accompanying drawings due to erroneous entry.

[Brief description of drawings]

1 to 4 show an embodiment of the present invention. FIG. 1 is a front view of a furnace lid, FIG. 2 is a partially cutaway front view of a small lid, and FIG. 3 is a horizontal sectional view of the small lid. FIG. 4 is a vertical sectional view of the small lid. FIG. 5 is a sectional view of a conventional example. (2) …… furnace lid, (2a) …… furnace lid body, (4) …… furnace frame, (7), (22) …… sealing member, (8), (23)…
… Pressing tool, (19) …… Fluororesin.

Claims (1)

[Scope of utility model registration request] 1. A belt-shaped seal member (7), (22) is attached to a furnace lid (2) in such a posture that one end side in a short side direction thereof is in pressure contact with a furnace frame (4) or a furnace lid body (2a), Sealing member (7),
Pressing tools (8) and (23) for pushing the other end side of (22) in the short side direction to the furnace frame (4) and the furnace lid body (2a) side are the furnace lid (2).
An apparatus for sealing a furnace lid attached to a furnace, wherein the sealing member (7), (22) has a furnace inner surface coated with a fluororesin (19).