JPH0254878B2 - - 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.

BACKGROUND OF THE INVENTION 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.

Purpose of the Invention Therefore, the present invention is designed to accurately grasp the displacement of the extrusion plate that exceeds the allowable value due to the deflection and inclination of the pusher rod when operating an extruder used in coke oven operation, to prevent damage to the furnace body, and to prevent damage to the furnace body. It is an object of the present invention to provide a detection device capable of detecting the inclination and deflection of an extrusion plate of coke oven equipment without requiring a supervisor.

Structure of the Invention The present invention is characterized in that the displacement of the extrusion plate is detected by projecting a light beam between a light emitter and a light receiver by retracting the extrusion plate entrance/exit port on the extruder furnace side by an allowable inclination/oscillation width. be.

Embodiments The present invention will be described below with reference to illustrated embodiments.

As shown in FIG. 4, near the entrance and exit of the extrusion plate 1 on the furnace side of the extruder 3, there are provided four sets of light emitters 8 and light receivers 9 that face each other. These light projectors 8 project a light beam 10 formed by a laser beam onto a light receiver 9 disposed facing each other, and the light receiver 9 is operated by the incidence of the light beam 10.

Here, the four light beams 10 projected between the four sets of light receivers 8 and 9 are emitted from the extrusion plate 1.
It is configured to be projected at a distance of a predetermined allowable tilt/shake value c in a direction perpendicular to the advance/retreat path.

Therefore, if the extrusion plate 1 advances from the extruder 3 with inclination or wobbling exceeding the allowable value due to displacement of the pusher rod, any of the four light beams 10 will be blocked. The corresponding light receiver 9 is then deactivated and an appropriate control device (not shown) connected to the light emitter 8 and the light receiver 9 is activated to generate an alarm signal.

In addition, in the embodiment shown in FIG. 5, the four light beams 10 projected between the four sets of projectors 8 and receivers 9 are directed from the apex of the displacement path corner of the extrusion plate 1 to the permissible inclination/deflection value. Light beam 10 separated by c
is projecting. For this reason, paying attention to the displacement of the corners of the extrusion plate 1, displacement of the extrusion plate 1 exceeding the allowable inclination/runout value is detected.

A photoelectric switch may be used instead of the light projector 8 and light receiver 9 in these embodiments.

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.

Damage to the furnace body can be prevented by accurately grasping the displacement of the extrusion plate that exceeds the allowable value due to the deflection and inclination of the pusher rod without directly placing a supervisor at the operating site of the coke oven.

[Brief explanation of the drawing]

Fig. 1 is a partially cutaway side view of the coke oven equipment, Fig. 2 is a plan view thereof, Fig. 3 is a perspective view showing a modification of the pusher rod, Fig. 4 is a schematic diagram showing an embodiment of the present invention, FIG. 5 is a schematic diagram showing another embodiment. 1... Extrusion plate, 2... Pusher rod, 3... Extruder, 4... Rail, 5... Wheel,
6... Furnace body, 7... Furnace chamber, 8... Floodlight, 9...
Receiver, 10... light beam.

Claims (1)

[Scope of 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 plurality of sets of opposing light emitters and light receivers are provided near the extrusion plate entrance/exit on the furnace opening side of the extruder. The light beams from these multiple sets of emitters to receivers are projected at a distance of a predetermined allowable inclination/deflection value from the displacement path of the extrusion plate, and when the extrusion plate advances from the extruder, this plate An extrusion plate inclination/deflection detection device for coke oven equipment, which detects inclination/deflection of an extrusion plate by blocking a beam.