JPS63252242A - Furnace wall observer for carbonizing chamber of coke furnace - Google Patents

Abstract

PURPOSE:To automatically observe a furnace wall and measure displacement thereof conducting a coke extrusion work, by arranging an observer comprising a projector section and a TV camera on the side of an extruder arm to operate an arm longitudinally. CONSTITUTION:As an arm A moves to a fire extinguishing truck from an extruder 20, a spot 23 irradiated from a spot light emitter 2 moves horizontally off a center line 26 of a monitor TV camera 22 according to condition of a furnace wall 19. At the same time, a spot 23 displayed on a screen of the monitor TV camera 22 also moves horizontally off the center line 26. The horizontal movement of the spot is caught with a measuring transmitter 24 having an image processing function and displayed numerically. Viewed from a measuring mechanism, when measuring apparatuses 21 are set separately on the right and left of the arm of the extruder 20, variations in the measured values can be corrected as caused by lateral oscillation of the arm 20 itself.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an observation device for observing the surface properties of the furnace wall of a coke oven carbonization chamber and measuring the displacement of the furnace wall.

[Prior Art] Conventionally, observation of the wall of the carbonization chamber of a coke oven was mainly carried out from the furnace mouth, and observation of the center of the furnace body was extremely difficult due to the high temperature.

Conventionally, the surface properties of the coke oven wall of the coke oven carbonization chamber have been observed using fiberscopes, small television cameras, etc., and the displacement of the oven wall has been measured using laser beams, but quantitative measurements are has not been obtained.

Moreover, it is extremely difficult to simultaneously observe the surface and the displacement of the furnace wall.

[Problems to be Solved by the Invention] In observing the surface properties of the furnace wall of the coke oven coking chamber and measuring the furnace wall displacement, the present invention provides the following: Observation of carbon adhesion status, etc.) and furnace wall displacement (unevenness, deformation, etc.)
(kiln 111 fluctuation, etc.) can be measured simultaneously.

(2) It is possible to accurately observe and measure the furnace wall in a high-temperature atmosphere without stopping the operation of the operating furnace.

It is an object of the present invention to provide a coke oven carbonization chamber furnace wall observation device that satisfies the above requirements.

[Means for Solving the Problems] The present invention provides a coking chamber furnace wall observation device for a coke oven.
A coke oven characterized by comprising an observation device comprising a light projection device and a television camera equipped on a coke oven extruder, and a measuring device for determining M1 the deflection displacement of the light projection spot that occurs as the extruder moves back and forth. This is a furnace wall observation device for the furnace carbonization chamber.

[Function] In the present invention, furnace wall observation devices are installed on both sides of the coke extruder arms (hereinafter referred to as arms) in the coking chamber. l
-1 is installed and the arm is moved back and forth to automatically observe the furnace wall and measure the displacement of the furnace wall, making it possible to perform these measurements while coke extrusion work is being performed.

Further, the M1 constant position can be freely selected by changing the position (height direction) of the measuring device or by providing measuring devices in multiple stages.

FIG. 1 is an explanatory diagram of a measuring device of a coke oven carbonization chamber wall observation device.

In the figure, 1: small television camera, 2: Nispot light emitter, 3: AC-DC converter, 4: voltage regulator, 5 to 7:
Case Nα1 to 3, 8 near clamp, 9: Wide-angle lens, 10 to 12: Cooling pipe No., 1 to 3.13: Camera power line, 14: Cooling pipe No., 4°15 = Lamp power line, 16
: Heat reflective glass.

17: Push plate, 18: Heat-resistant packing, 19: Furnace wall.

As shown in Fig. 1, the fixed part 3-1 includes a compact (COD) television camera (hereinafter referred to as a camera) 1 and a spot light emitter (hereinafter referred to as a light emitter) 2. is installed directly facing (90') toward the furnace wall 19, and the light emitted by the arc lamp 8 is irradiated onto the furnace wall 19 at an irradiation angle of 60 degrees as a spot light using a collective lens and a diaphragm mechanism.

FIGS. 2 and 3 are explanatory diagrams of the measuring mechanism of the apparatus of the present invention, respectively.

In the figure, 20: extruder, 21: measuring device.

22: Monitor TV, 23 Nispot light point.

24: Measuring instrument, 25: VTR, 26: Center line,
27: It is a cable.

As shown in FIG. 2, the camera center line is aligned with the center line 26 of the surface of the monitor television camera 22, and the spot light point 23 (hereinafter referred to as the spot) is aligned with the oven wall position in the coke oven design (arbitrary standard). For example, set the point to indicate the kiln opening brick wall).

Also, as shown in the figure, the arm is on the extruder 20 side (hereinafter p
, s, > toward the fire engine side (hereinafter referred to as C, S), the spot 23 deviates from the center line 26 of the monitor television camera 22 and moves left and right according to the condition of the furnace wall 19. At the same time, the spot 23 displayed on the screen of the monitor television camera 22 also deviates from the center line 26 and moves left and right.

The right side shows the bulge of the furnace wall 19.

This left and right movement is measured by a measuring device (rt) with an image processing function.
It is captured by W 24, digitized and displayed.

In this case, the movement width of the spot 23 on the surface of the furnace wall 19 is 0 to 1
By image processing 00 am into 0 to 1000 frames and reading the frame number, an accurate numerical value of 1 can be obtained.

On the mj determination mechanism, there are measuring instruments 21 on the left and right sides of the arm of the extruder 20.
By installing this, it is possible to correct fluctuations in measured values due to lateral vibration of the arm 20 itself, and it is possible to obtain more accurate measured values.

The furnace wall observation device as described above makes it possible to measure variations in the furnace wall, such as fluctuations in kiln ri, bulges, melting damage, peeling, carbon adhesion, etc., and also allows observation of the furnace wall surface at the same time.

Next, examples of the present invention will be described.

[Example] An example will be described in which the bulge to wear degree of the wall of the coke oven carbonization chamber and the thickness of carbon deposit were observed.

Figure 4 is an explanatory diagram showing an example of the shape and dimensions of a coke oven carbonization chamber, Figure 5 is an explanatory diagram when an oven wall observation device is attached to the coke oven carbonization chamber, and Figure 6 is an explanation of observation procedures. It is a diagram.

In the figure, 28: Coke oven carbonization chamber, 29a: Extruder side kiln mouth, 29b: Fire engine side point 0.30a: Cooling water population, 30b: Cooling water outlet, 31: Condensing lens, 23a, 2
3b Nispot light spot, 32a.

32b: Survey point spot.

In this embodiment, the coke oven carbonization chamber 28 has a length of 6590 mm and a width of 15900 mm, as shown in FIG.

The width of the kiln is 388 m on the extruder 20 side kiln port 29a side, 452 m + e on the fire engine side kiln port 29b side, and 42 m + e at the center of the carbonization chamber 28.
The dimension is 0 mm.

As shown in FIG. 5, M1 regulators 21a and 21b are installed horizontally on the left and right sides of the extruder arm 20 of the coke oven carbonization chamber 28.

In the measurement work, the extruder arm 20 is moved back and forth to automatically measure the furnace wall over the entire stroke and record it on the VTR 25. Then, the videotape of the VTR 25 is displayed on the monitor television camera 22.

The distance between the center line 26 of the monitor television camera 22 and the measurement points 32a, 32b, that is, the displacement of the furnace wall 19 with respect to the standard value, is numerically measured by the measurement transmitter 24, and the count is displayed.

Measuring instruments 21a, 21b and cooling pipes (
(about 17 m in length) are attached to the tip of the extruder arm 20 on both the left and right sides.

The cooling pipe body has a triple structure, and cooling water is pushed in from the cooling water outlet 30a at a pressure of 5 to 10 kg/c-, and the cooling water outlet 30b
The cooling pipe 10 in the middle of the triple pipe is used to introduce wiring such as the cable 27 and the camera power line 13, and at the same time, the case No. 1 (5) is used as an outlet for cooling gas (air).

(N2 gas, etc.) in a high-temperature furnace 21a.

21b for cooling protection.

In the measurement section, the small camera 1 is placed directly opposite the furnace wall 19, and the arc lamp 8 is used to irradiate the furnace wall surface 19 with spot light at an angle of 60'' using the condensing lens 31 and its aperture mechanism.

Since the oven wall temperature of a coke oven is estimated to be 1100℃,
White light from an arc lamp 8 is used as the spot light.

If the furnace wall temperature is 1,200° C. or higher, the furnace wall itself becomes close to white, so light such as a laser beam is required.

The zero point of the spot light is set on the line on the coke oven design,
A center line 26 is superimposed on the screen of the monitor television 22 as an All fixed reference point.

Therefore, the basic point in the design of the spotlight 23 is on the center line 26 of the screen of the monitor television 22.

Left/1l11 constant 2'A 21 a spot light point 23a
is displayed on the measuring point spot 32a, and the spot light point 23b of the right measurement 521b is displayed on the all one point spot 32b.

Structurally, the spot uses the center of the camera as the design reference point, and when the furnace wall 19 wears out, the spot 23b moves to the left, and when "bulging" or when carbon adheres to the furnace wall, it moves to the right. will be moved and displayed.

71-1 monitors 21a and 21b use the same al-Sadakawa monitor television 22, and display the spot light point 23a on 32a and the same spot light point 23b on 32b.

A total of 1lI11 transmitters 24 measure W 21 a +
The signal of 2lb is superimposed on the screen of the monitor television camera 22, and the spot light displayed on that screen is set to 0 with the center line, and the direction is 10 to the left.
This is a monitor image processor that has the function of counting and displaying 1000 frames each.

[Effects of the Invention] According to the coke oven carbonization chamber furnace wall observation device of the present invention, the following effects are achieved.

(1) Previously, observation of the furnace wall and measurement tools could not be performed in satisfactory conditions except for part of the kiln mouth. In particular, it was impossible to make measurements on purpose. However, by using this equipment, it has become possible to measure and observe the entire length of the coking chamber, making it possible to more accurately determine the life of the reactor.

(2) When measuring and observing the furnace wall, there is no longer a need to stop the furnace body, and continuous measurement is now possible. In addition, the inside of the furnace should be observed during daily inspection for 20 to 30 minutes/kiln/mouth/week (inner furnace wall 10 to 20 minutes).
(minutes/kiln/kiln/week), and it was estimated that the operating time per kiln would be 1 hour/month.

(3) The state of carbon adhesion and its growth rate can be ascertained every time the kiln is taken out, allowing for improved accuracy in removal timing and early improvements in furnace operation.

(4) It also leads to early detection of damaged parts of the reactor wall, and can be expected to extend the life of the reactor through appropriate HI repair.

[Brief explanation of drawings]

Figure 1 is an explanatory diagram of the coke oven wall measuring device, Figures 2 to 3
Each figure is an explanatory diagram of the M1 constant mechanism of the device of the present invention. Figure 4 is an explanatory diagram showing an example of the shape and dimensions of a coke oven carbonization chamber, Figure 5 is an explanatory diagram when an oven wall observation device is attached to the coke oven carbonization chamber, and Figure 6 is a view/1-1 procedure. FIG. In the figure, 1: small TV camera, 2 Nispot light emitter, 3: AC-DC converter, 4: voltage regulator, 5 to 7
: N (L case 1 to 3.8 = arc lamp, 9: wide-angle lens, 10 to 12: cooling pipe 1 to 3.13: camera power line, 14: cooling pipe N (L4°) 5: lamp power line ,1
6: Heat ray reflective glass. 17: Push plate, 18: Heat-resistant packing, 19: Furnace wall. 20: Extruder, 21: Measuring device, 22: Monitor TV,
23 Nispot light spot, 24: 1 PH device in total, 25: VTR
, 26: Center line, 27: Cable. 28: Coke oven carbonization chamber, 29a: Extruder side kiln mouth, 2
9b: Fire engine side kiln 0.30a: Cooling water population. 30b: Cooling water outlet, 31: Condensing lens, 23a. 23b: Nispot light point; 32a, 32b: measurement point spot;

Claims (1)

[Claims] In a coke oven coking chamber wall observation device, the observation device consists of a light projector and a television camera installed in a coke oven extruder, and a measurement that measures the deflection displacement of the light projection spot that occurs as the extruder moves back and forth. A coke oven carbonization chamber furnace wall observation device characterized by comprising: