JPH0254877B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to an extrusion plate tilt/runout detection device for coke oven equipment.

PRIOR ART In the operation of coke ovens, extruders are used which have a pusher rod with an extrusion plate attached to one end. The pusher rod and plate at the tip of this extruder are heated when extruding the red-hot coke in the furnace and cooled when it is drawn into the extruder, so they are constantly affected by heat.

For this reason, the extrusion plate may swing from side to side or tilt up and down as shown in Figures 1 to 3 due to heat deformation of the pusher rod. Operate the extruder while leaving this as it is. There was a risk that this would cause a breakdown of the reactor body.

However, in the past, there was no appropriate detection means, so the operator had to rely on the visual judgment of workers at the operation site. For this reason, it is difficult to accurately grasp the inclination and deflection of the extrusion plate due to the deformation of the pusher rod, and it is necessary to constantly place workers in a harsh environment with high temperatures and a lot of dust.

(Objective of the Invention) Therefore, the present invention prevents damage to the furnace body by accurately grasping the displacement exceeding the allowable value of the extrusion plate due to the deflection and inclination of the pusher rod when operating an extruder used in coke oven operation. The purpose of the present invention is to provide a device for detecting inclination and deflection of an extrusion plate for coke oven equipment, which does not require the presence of a supervisor on site.

(Structure of the Invention) The present invention detects the displacement of the extrusion plate by arranging a plurality of contact type detectors at the extrusion plate entrance/exit of the extrusion plate side on the extruder furnace side, retracted from the extrusion plate displacement path by the allowable inclination/swing width. There are characteristics.

(Example) The present invention will be explained below with reference to the illustrated embodiments.

As shown in Fig. 4, at the entrance of the extrusion plate on the furnace side of the extruder 3, the four corners of the extrusion plate 1 are spaced apart from each other by the allowable inclination and deflection value in the direction orthogonal to the advancing and retreating path of the extrusion plate 1. However, two movable detection plates 8 are arranged corresponding to each corner of the extrusion plate 1. A detection device 9 is connected to each of these movable detection plates 8, and when the extrusion plate 1 is tilted or deflected beyond the allowable amount, the extruder 3
When the extrusion plate 1 moves forward toward the furnace opening, the extrusion plate 1 comes into contact with at least one of the movable detection plates 8. thus,
When the movable detection plate 8 is displaced, the detection device 9 is activated and detects the displacement of the extrusion plate 1.

Furthermore, as shown in FIG. 5, it is also possible to adopt a configuration in which a pair of movable detection plates 8 and detection devices 9 are respectively arranged corresponding to the corner vertices of the extrusion plate 1 on the diagonal extension of the extrusion plate 1. .

Examples of the detection device 9 are shown in FIGS. 6a to 6d. In FIG. 6a, a disc-shaped cam 10 having a protrusion is fixed to the end of the movable detection plate 8.
A roller lever type limit switch 11 that comes into contact with the protrusion 0 is provided. Therefore, when the extrusion plate 1 comes into contact with the movable detection plate 8, the protrusion of the cam 10 is disengaged from the roller lever type limit switch 11, and this switch 11 is activated.

In FIG. 6b, the proximity sensor 12 is placed opposite the protrusion of the cam 10, and when the protrusion comes off the proximity sensor 12 due to rotation of the cam 10, the contact of the extrusion plate 1 with the movable detection plate 8 is detected. do.

In addition, in FIG. 6c, the projector 13 projects light onto the protrusion of the cam 10, the receiver 14 receives the reflected light, the normal protrusion position is determined, and the rotation of the cam 10 due to the operation of the movable detection plate 8 is detected. To detect.

Furthermore, in the embodiment shown in FIG. 6d, the cam 10
The projector 13 and the receiver 14 are arranged facing each other in a direction perpendicular to the plane, and the displacement of the protrusion of the cam 10 is grasped.

In this way, the detection device 9 configured as shown in FIGS. 6a to 6d detects that the deflection and inclination of the pusher plate 1 exceed the allowable range, and stops the movement of the pusher rod, thereby preventing damage to the furnace body. prevent.

(Effects of the Invention) The embodiment of the extrusion plate tilt/runout detection device for coke oven equipment according to the present invention is as described above.
The following effects can be mentioned.

The displacement of the extrusion plate exceeding the allowable value due to the deflection and inclination of the pusher rod can be accurately grasped, and damage to the furnace body can be prevented, allowing safe operation of the coke oven.

[Brief explanation of the drawing]

FIG. 1 is a partially cutaway side view showing the configuration of a coke oven and an extruder, FIG. 2 is a partially cutaway plan view,
FIG. 3 is a perspective view of the pusher rod and extrusion plate, FIG. 4 is a schematic diagram showing an embodiment of the present invention, and FIG.
The figure is a schematic diagram showing another embodiment, and FIGS. 6a to 6d are schematic diagrams showing an embodiment of the detection device. 1... Extrusion plate, 2... Pusher rod, 3... Extruder, 4... Rail, 5... Wheel,
6... Furnace body, 7... Furnace chamber, 8... Movable detection plate, 9
...detection device, 10 ... cam, 11 ... roller lever type limit switch, 12 ... proximity sensor, 13 ... emitter, 14 ... light receiver.

Claims (1)

[Claims] 1. In a coke oven equipment equipped with an extruder having a pusher rod with an extrusion plate attached to one end thereof, a predetermined allowable inclination of the extrusion plate from the displacement path of the extrusion plate is provided near the extrusion plate entrance/exit on the furnace mouth side of the extruder. Multiple contact sensors are placed spaced apart by the deflection value,
An extrusion plate inclination of coke oven equipment, characterized in that when the extrusion plate advances from the extruder to the furnace mouth side, the extrusion plate contacts any of the plurality of contact type sensors to detect the inclination and deflection of the pusher rod. - Shake detection device.