JPH06279761A - Apparatus for confirming removal and setting of lid of coke oven - Google Patents

Abstract

PURPOSE:To confirm the attaching and detaching of an oven lid by detecting whether a locking bar is at the right position or not with a mechanical means. CONSTITUTION:A lever 8 rotates clockwise by pushing a spindle 45 downward with a cylinder mechanism 44, and a lever 6 elastically connected to the lever 8 also rotates clockwise. These mechanisms in such a state are brought close to an oven door, and the spindle 45 is withdrawn upward with the cylinder mechanism 44 at a position where a locking bar and a locking bar receiver are expected to be. The the lever 8 rotates counterclockwise and its top gets into touch with the locking bar receiver 2. A rod 34 moves up and down in accordance with the relative change of the levers 6 and 8. When the locking bar is at the normal position, values near the standard values of the levers 6 and 8 are indicated on a displacement gage 36. When the locking bar is not set rightly in the receiver, the levers 6 and 8 are more apart from each other than in the normal state.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a furnace lid attachment / detachment confirmation device for attaching / detaching a furnace lid of a coke oven.

[0002]

2. Description of the Related Art First, the position of a furnace lid of a coke oven and the work relating to the oven lid of the coke oven will be described. A kiln of a coke oven is shown on the left side of FIG. 4, and the oven lid 1 of the coke oven is shown.
The bar 4 of the furnace lid is set in the bar receiver 2 attached to the coke oven.

When the dry distillation of the coke oven is completed in such a state, the coke extruder (not shown) is moved to the position of the coke kiln in order to discharge the produced coke. The coke extruder is equipped with a coke extruder (not shown) and a lid removing device (not shown). The lid removing device is composed of a lifter 100 for attaching and detaching a furnace lid and a member (not shown) for operating the lifter 100.

The lifter 100 lifts the barn 4 of the furnace lid with a hook to separate the furnace lid 1 from the coke oven. Next, the coke extrusion device extrudes coke from the kiln, and again attaches the bar 4 of the furnace lid to the bar receiver 2 by the lifter 100,
Attach the furnace lid to the coke oven. Fig. 5 shows the relationship between the bartack on the furnace lid and the bartack. As shown in FIG. 5, the bartack 2 is an arm-like device attached to the coke oven, and the furnace lid is supported by the bartack 2 by the barb 4, and when the barbrest 2 is supported in the normal position, The carbonization chamber of the coke oven can be sealed from the outside.

That is, it is extremely important for the operation of the coke oven that the bartack is properly held in the bartack. However, due to the deformation of the coke oven or the deformation of the furnace lid, the bartack may not be normally attached to the bartack, and in this case the operation of the furnace may not be performed normally, or the furnace lid may be detached from the coke oven. . Therefore, it is necessary to detect whether the barb is in a normal position after the furnace lid is set on the furnace opening and before the furnace lid is attached and detached from the furnace opening.

Conventionally, for example, JP-A-64-20
As disclosed in Japanese Patent No. 292, a method of observing a coke oven with a camera and particularly determining whether or not the oven lid of the coke oven is in a normal position is disclosed.

[0007]

However, in the observation by the camera as described above, it is impossible to take an image of whether or not the furnace lid is in a normal position when dust or fumes is generated. There's a problem. An object of the present invention is to solve the above-mentioned problems and to provide a coke oven furnace lid attachment / detachment confirmation device capable of surely detecting whether or not the oven lid of the coke oven is normally attached to the oven mouth.

[0008]

DISCLOSURE OF THE INVENTION The present invention provides a lever A which is pivotally supported by a lid removing device and has one end capable of abutting a bar receiver of a coke oven furnace lid; And a lever B having one end capable of hitting the bar, a driving means for rotating the lever A, a coupling means for elastically coupling the lever A and the lever B, the lever A and the lever B. Device for confirming the attachment / detachment of a coke oven equipped with a displacement gauge for measuring the relative distance of the coke oven, and a lever B pivotally supported by the lid removing device and having one end capable of abutting on the bar of the coke oven furnace lid; A lever A which is rotatably supported by a device or the lever B and has one end which can be engaged with a bartack; a driving means for rotating the lever B; and a coupling means for elastically coupling the lever A and the lever B. , The relative distance between the lever A and the lever B is measured. A furnace cover desorption confirmation apparatus coke oven having a displacement meter for.

[0009]

According to the first aspect of the invention, the lever A is rotated by the driving means to be brought into contact with the bar receiver. Then, since the lever B is connected to the lever A by the connecting means, the lever B rotates as the lever A rotates and comes into contact with the bar. Lever A
Since the connection between the lever B and the lever B is made elastic, even if the step difference between the bar and the bar receiver changes, the lever B naturally contacts the bar. With respect to the second aspect of the invention, the same operation is performed by driving the lever B by the driving means. By measuring the relative position of the two levers with the displacement gauge in this state, the level difference between the bar and the bar receiver can be measured. When the bar 4 of the furnace lid is normally mounted on the bar bar 2, there is a constant step (reference value) between the upper part of the bar bar and the upper part of the bar bar, so if the measured step is this reference value, It can be judged that the furnace lid is in the normal position.

[0010]

Embodiments will be described in more detail below based on the embodiments, including the operation. FIG. 1 is a side view when the device according to the present invention is measuring the bart in a normal position. That is, the present apparatus first detects a lever 6 (corresponding to lever B) for detecting the position of the barb 4.
A lever 8 (corresponding to the lever A) for detecting the position of the bartack 2 is commonly supported by, for example, a pin 12 and is in contact with the bartack 4 and the bartack 2, respectively. The pin 12, which is a shaft support means, is connected to a part 41 of the lid removing machine device by a pin pressing plate 10. The other end 14 of the lever 8 is connected to a movable spindle 45 that drives the lever 8 in the vertical direction. As a specific example of the connection, the other end of the lever 8 has a connecting portion 14 such that the tubular body 48 is sandwiched between the connecting portions
The connecting portion 14 sandwiches the tubular body 48 and is connected to the tubular body 48 by, for example, a pin 46. This tubular body 48 has an elastic body 47 inside, and this elastic body is engaged with the above-mentioned spindle.

As a concrete example, the elastic body 47 is, for example, a coil spring or the like, and the elastic body 47 has a lower portion abutting against a lower pressing portion 49 of the elastic body and an upper pressing portion 50 arranged on a cylindrical body 48 at an upper portion. Is in contact with. 45 is connected to the cylinder mechanism 44, and the lever B can be moved up and down by the vertical movement of the cylinder mechanism.

The cylinder mechanism may be a hydraulic cylinder or an air cylinder. This cylinder mechanism is axially supported by a part 41 of the lid removing device, for example, via a pin 43. Here, the elastic body 47 is preferably contained in the cylindrical body 48 in order to eliminate the attachment of dust, and when the cylinder mechanism 44 pulls up the spindle and one end of the lever B abuts on the bar bar, The elastic body 47 has a function of absorbing the extra pulling force so that an excessive force is not applied. The cylinder mechanism 44, the spindle 45 and the like constitute a driving means for rotating the lever 8.

A displacement meter 36 is axially supported by a pin 39 provided on the lever 8 via a support member 40, and a rod 34 of the displacement meter 36 is connected to the lever 6 via the pin.
The rod 34 is provided coaxially with the displacement meter 36, and slides in the displacement meter 36.
The relative position of the lever 6 and the lever 8 can be detected by detecting the change in the relative position of the displacement meter 34. Rod 36
Pressing plates 32 and 38 are provided at both ends of the elastic body 35 and 3 between the displacement plates 34 and the elastic plates 35 and 3, respectively.
7 is provided.

Due to these mechanisms, the lever 6 is the lever 8
Is elastically coupled to. These elastic bodies are levers 6.
Acts to pull back when the lever 6 moves excessively below the lever 8 and pulls it back downward when the lever 6 moves excessively above the lever 8. Therefore, when the lever 6 and the lever 8 do not come into contact with the bar and the bar receiver, the lever 6 and the lever 8 stop in a substantially parallel state. When the lever 6 is in contact with the bar and the lever 8 is in contact with the bar as shown in the figure, the lever 6 is pushed up slightly, and as a result, the elastic bodies 35 and 37 are moved upward while being pressed. .

Although the rod of the displacement gauge is used as a part of the elastic coupling mechanism of the lever 6 and the lever 8 in this embodiment, the elastic coupling mechanism of the lever 6 and the lever 8 is independent of the displacement gauge. May be provided. Further, in this embodiment, the lever 6 and the lever 8 are also commonly supported by the pin 12, but the lever 6 and the lever 8 may be supported by another shaft provided in the lid removing device. The rotation axis of the lever 6 may be provided on the lever 8. Further, instead of the lever 8, the lever 6 may be modified so as to be driven by a driving device.

FIG. 2 is a plan view of the apparatus shown in FIG. 1, in which 1 is a furnace lid and 4 is a barb fixed to the furnace lid.
The bar 4 is set on the bar receiver 2. 1 and 2, in the present embodiment, the lever 6 and the lever 8 are metal levers having a rectangular section, for example, but the shape is not limited to this. The outer cylinder of the displacement gauge 36 is connected to the lever 8 by the support member 40, while the detection rod 34 for detecting the relative position is rotatably connected to the lever 6. The above is the description of the present apparatus.

Next, the operation of this apparatus will be described. By pushing the spindle 45 downward in FIG. 1 by the cylinder mechanism 44, the lever 8 rotates clockwise, and the lever 6 elastically coupled to this also rotates clockwise. In this state, these mechanisms are brought close to the coke oven door, and the spindle 45 is pulled up by the cylinder mechanism 44 to the upper side in FIG. Then, the lever 8 rotates in the counterclockwise direction and its tip comes into contact with the bar bar receiver 2. At the same time, the lever 6 elastically coupled to the lever 6 also rotates in the counterclockwise direction, and the tip thereof abuts the bar 4. The rod 34 moves up and down according to the relative change of the lever 6 and the lever 8.

When the barb is in the normal position, the displacement gauge 36 indicates a value close to the reference position of the lever 6 and the lever 8 shown in FIG. 1, as already described. Assuming that the bartack is not normally attached to the bartack, for example, as shown in FIG. 3A, the bartack is partially attached to the bottom 22 of the bartack, the lever 6 and the lever 8 are attached. Are more distant than normal. This separated position can be detected by the displacement meter 36 described above, and the state in which the bar is raised can be detected by the difference from the value indicating the normal position.

When the lever 8 does not come into contact with the bartack in this way, both the lever 6 and the lever 8 are pressed downward and stop at substantially parallel positions, so that there is no difference in the relative positions of the two levers in the displacement gauge. Will be issued. The above points are summarized as follows.

That is, when the bartack is normally set in the bartack, a specific reference position is designated, and the barb is lifted above the bartack ((a) in FIG. 3). The relative position between the lever 6 and the lever 8 is opened.
Further, when neither the lever 6 nor the lever 8 is in contact with the bar or the bar receiver, it is instructed that there is no difference in the relative positions of the both. This will show the relative position of the bar and the bar.

Further, in the case of FIG. 3 (c) described above, the lever 6 is out of the proper bar-bearing position. In this case, the cylinder mechanism 44 is prevented from pulling up the spindle 45 indefinitely. In order to do so, a limit switch 56 can be provided.

That is, returning to FIG. 1, the lever 6 and the lever 8
If the cylinder does not come into contact with the bar receiver, a limit switch 56 is provided in order to prevent the cylinder mechanism 44 from being lifted upward indefinitely, and therefore the lever 6 and the lever 8 are displaced extremely downward. Tubular body 48
A certain amount of movement, the protrusion 52 moves excessively upward, resulting in movement of the contact end 54 of the limit switch to activate the limit switch, in which case the cylinder mechanism 44 stops pulling up the spindle 45.

It is desirable that at least one furnace lid attachment / detachment confirmation device of the present invention is provided in the furnace lid removing machine. This is because usually four bar tackers are arranged on one furnace lid.

[0024]

According to the furnace lid attachment / detachment confirmation apparatus of the present invention, since it is possible to detect whether or not the bark of the coke oven lid is in the normal position with respect to the barb receiver, the furnace lid is set in the normal position. Can be detected. From the above, the apparatus of the present invention can detect the detached state of the oven lid of the coke oven, and the oven lid removal work of the coke oven can be performed extremely efficiently. Furthermore, for each coke kiln, if the bartack position data when the coke kiln is in a normal position is recorded in a computer for each measurement, the tendency of the furnace lid to rise can be determined, and the cleaning work and repair work can be set in advance.

[Brief description of drawings]

FIG. 1 shows a side view of a furnace lid attachment / detachment confirmation device according to the present invention, and also shows a state in which the position of a barb at a normal position is being measured together.

FIG. 2 is a plan view of a furnace lid attachment / detachment confirmation device according to the present invention.

FIG. 3 (a) shows a state in which a bar is lifted from a bar receiver and set, and the relative positions of levers A and B at that time. Further, FIG. 3B shows a state before the lever 6 and the lever 8 come into contact with the bartack. This figure (c) is a view showing the state of the lever 6 and the lever 8 when the lid removing machine device is not in a normal position and therefore the device of the present invention does not contact the bar or bar receiver and moves downward. Is.

FIG. 4 is a diagram showing a relationship between a furnace lid attached to a coke oven and a lifter for attaching and detaching the furnace lid.

FIG. 5 is a view showing a state in which a bar of a furnace lid mounted on a coke oven is mounted on a bar receiver.

[Explanation of symbols]

 2 Bar bar receiver 4 Bar bar 6 Lever A 8 Lever B 10 Lever retainer plate 14 Lever B connecting part 36 Displacement meter 44 Cylinder mechanism 45 Spindle

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Takeshi Niimoto 1-2-2 Marunouchi, Chiyoda-ku, Tokyo Nihon Steel Pipe Co., Ltd. (72) Yoshiro Nishi Nishi 1-2-1 Marunouchi, Chiyoda-ku, Tokyo No. Nippon Steel Tube Co., Ltd.

Claims (2)

[Claims] 1. A coke oven furnace lid attachment / detachment confirmation apparatus comprising the following members. (A) Lever A pivotally supported by the lid removing device and having one end capable of abutting the bark receiver of the coke oven furnace lid; and (b) Lid removing device or the lever A pivotally supported by the lever A, which can be used as a bartack. A lever B having one end, (c) a driving means for rotating the lever A, (d) a coupling means for elastically coupling the lever A and the lever B, and (e) the lever A and the lever. B
Displacement meter that measures the relative distance to. 2. A furnace lid attachment / detachment confirmation device for a coke oven, comprising the following members. (A) Lever B pivotally supported by the lid removing device and having one end capable of contacting the bar of the coke oven furnace lid; and (b) Lid removing device or pivotally supported by the lever B, which can be used as a bartack receiver. A lever A having one end, (c) a driving means for rotating the lever B, (d) a coupling means for elastically coupling the lever A and the lever B, and (e) the lever A and the lever. B
Displacement meter that measures the relative distance to.