JPH11256167A - Apparatus for observing wall surface of carbonization chamber of coke oven - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an observation apparatus carrying means having slight mechanical vibration. SOLUTION: This observation apparatus is equipped with a lance (LCE) for carrying a wall surface-observing means at the top, a means (LDRV) for driving the lance in (y) direction, a guide rail (RAI) and a means (RDRV) for driving the guide rail in the (y) direction until the top of the guide rail reaches the outlet of coke oven, and the lance moves on the smooth surface of the guide rail moved to the interior of cake oven to reduce vibration applied to the wall surface observing means. The wall surface observing means is equipped with one-dimensional single or plural CCD camera (s) to which imaging optical axis is attached at oblique angle, an image treating means for synthesizing two-dimensional image from the one-dimensional image pictured while moving the CCD camera (s) and writing the image in an image memory, an image display means for displaying image data of the image memory as a face and a rotating mechanism for selecting right and left both wall surfaces picturing while rotating the comera(s).

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for remotely observing a wall surface condition such as unevenness of a carbonization chamber wall surface in a high temperature environment of a coke oven, and more particularly to a camera,
The present invention relates to a device for remotely observing a wall of a coking chamber by inserting a lance equipped with an observation device such as a distance meter into a coke oven coking chamber.

[0002]

2. Description of the Related Art A coke oven is composed of a large number of coking chambers and combustion chambers connected alternately. Coal is carried into the coking chamber, and the combustion chamber is transferred from the combustion chamber to the coking chamber through a furnace wall at 900 ° C. to 1100 ° C. The high heat of ℃ is continuously applied for about 20 hours, and the coal is carbonized. That is, coke is manufactured. When this carbonization is completed,
Dust is discharged, and coal is charged and heating is started again. This is repeated, and the carbonization chamber of the coke oven is always at a high temperature.

[0003] Fig. 7 (a) shows the shape of the carbonization chamber 3 as viewed from the kiln opening IN in the kiln exit EX direction. The size of the carbonization chamber is an example, and the height (H) is approximately 6.5 m and the width (W) is approximately.
0.4 / 0.46m (Tapered, 0.4m on coke extruder side (IN side), coke kiln exit side (EX side)
0.46 m) and a length (L) of 16 m, forming a very narrow and deep furnace space. Each refractory brick constituting the furnace wall is roughly 120 mm in height and 26 mm in width.
0 mm and thickness 110 mm.

[0004] The refractory brick used for the inner wall of the carbonization chamber (partition wall with the combustion chamber) is exposed to the above-mentioned high heat for a long time, and when the coke is carried out after completion of the coke, the coke is extruded by a coke extruder. Under pressure, and easily damaged by thermal, chemical or mechanical stress. That is, joints on the wall, brick cracks, peeling, carbon adhesion, or irregularities on the wall,
Bending, kiln width fluctuation, etc. are likely to occur. Damaged portions are more likely to be further damaged due to the local application of excessive force during coke extrusion, and the damaged portions are unfavorable in operation because their heat propagation characteristics are different from those of normal portions. Relatively small damaged parts are filled with refractory by spraying, and refractory bricks are set in the missing bricks and sprayed on the joints to repair them. However, it is difficult to find and locate the damage.

In the method of observing the inner wall of the furnace from the coke oven through a short period of time between operations, the inside of the oven is hot, so the inside must be seen from outside the narrow oven. In this case, the inside of the furnace is seen in the form shown in FIG. Since the depth is deep, it is very difficult to observe the surfaces of the vertical wall surfaces W1 and W2.
Therefore, an ITV camera (television camera) is inserted from the furnace port to take a picture of the inner wall surface, and a method of determining the damage state of the wall surface based on the obtained image information. A non-contact type distance measuring device is inserted from the furnace port. Thus, there has been proposed a method of measuring the distance from the apparatus to the wall surface to know the unevenness of the wall surface and determine the damage state of the wall surface.

For example, Japanese Patent Application Laid-Open No. 3-105195 discloses that a camera is mounted on a coke extruder or a dedicated moving machine, and an inner wall surface of a furnace is photographed while moving from a kiln opening of a coke oven carbonization chamber. . However, as shown in FIG. 7A, the height H and the depth (length) L of the left and right vertical walls of the carbonization chamber are:
The distance W between the right and left vertical walls is extremely small (carbonization furnace width W =
0.4 to 0.46 m), when the camera is directly opposed to the lateral wall, the photographing range becomes narrow, and an image in a necessary range cannot be obtained. Therefore, as shown in FIG. An ITV camera is mounted diagonally to the wall surface to photograph the wall surface.

FIG. 8A shows a photographing range AIF for one screen when the two-dimensional camera ITV photographs the wall surface W1 at an angle. FIG. 8 (b) shows the resulting 2
2 shows a photographing screen 12 of a three-dimensional camera. The brick image on the screen 12 is a perspective image, and the photographing range is small near the camera and the photographing range is wide in the distant place, so that it is inconvenient to use the brick wall as it is for observation of the furnace wall. Therefore, the proposal proposes that the obtained perspective image is subjected to image processing and converted into a front image as if it were photographed directly facing the furnace wall.

In the apparatus for observing the inner wall of a coke oven carbonization chamber disclosed in Japanese Patent Application Laid-Open No. Hei 7-123336, the wall surface is observed with a two-dimensional CCD camera in the same manner as described above.

FIG. 9 (a) is a side view showing a state in which the proposed coke oven carbonization chamber inner wall observation device is inserted into the coke oven carbonization chamber, and FIG. 9 (b) is a plan view thereof. . In general,
When a heavy camera equipped with a cooling device is provided at the tip of the boom and the boom is inserted into the furnace for observation, the long boom is supported only at the base end of the boom. Then, the boom vibrates, and the captured image is likely to be blurred. In order to prevent vibration, the boom itself must have a large cross section with high strength. Therefore, in this proposal, a running support means (sliding shoe with a sled) is provided which slides the furnace bottom while supporting the boom on the bottom surface of the boom, and is used without enlarging the boom. Has been proposed.

That is, as shown in FIGS. 9 (a) and 9 (b), a two-dimensional CCD camera ITV is installed on the upright portion of the beam, and shoes LSW1 to 3 are provided on the lower surface of the beam.
The right and left furnace walls W during the movement
1, side shoes SSW are attached to the left and right sides of the boom in order to prevent falling down to W2.

[0011]

As described above, when observing a very narrow and deep wall of a coke oven space in a high-temperature environment, a buoy equipped with an observation device such as a television camera is used. -Insert the chamber into the furnace from the coke oven mouth and observe. The insertion of the boom always involves mechanical vibration. For example, in Japanese Patent Application Laid-Open No. 3-105195,
Camera ITV on coke extruder 1 or dedicated moving machine
Is mounted, and the inner wall of the furnace is photographed while moving from the kiln opening IN of the coke oven carbonization chamber. Therefore, the vibration during the movement is propagated to the two-dimensional television camera ITV, and the photographed image may vibrate and the resolution may be reduced. I am concerned.

[0012] Japanese Patent Application Laid-Open No. 7-126636 discloses
In the inner wall observation device of the coke oven carbonization chamber, a cooled imaging device ITV is arranged at the tip of the boom 1 inserted from the kiln opening of the coke oven carbonization chamber, and the furnace is moved while moving in the furnace depth direction. An image of the inner wall is continuously photographed, and the photographing device transporting boom 1 is provided with slide shrouds LSW1 to LSW1 provided on the lower surface.
3 slides on the uneven hearth surface FL, so that a slight mechanical vibration accompanies the reciprocation. Further, if the boom 1 tilts to the left and right due to the unevenness of the hearth FL, and the side shoe SSW comes into contact with the furnace lateral wall surface W1 (W2) due to the tilt, vibration is also generated. Therefore, the mounted photographing device (two-dimensional television camera ITV) also vibrates due to the vibration of the boom 1 or the vibration caused by the tilt, and the resolution is also affected by the photographed image. A reduction in the boom speed for vibration reduction is not preferable because the photographing time is prolonged, and the carbonization chamber is cooled and bricks may be damaged.

In addition, even when measuring the furnace wall distance with a non-contact type distance meter, if the distance meter receives vibration, the position of the measured wall surface,
In addition, the measurement angle (for example, the launch angle of the laser beam) changes, and the measurement accuracy decreases.

SUMMARY OF THE INVENTION It is an object of the present invention to reduce mechanical vibrations caused by running a lance when observing each part of the wall of a coke oven carbonization chamber.

[0015]

According to the present invention, there is provided a coke oven coking chamber wall surface observation apparatus comprising: a guide rail (RAI) extending in a depth direction y of the coke oven coking chamber; Guide rail that can be inserted and removed in the y-direction along the furnace bottom in the furnace coking chamber
Driving means (RCH, RDRV); mounted on guide rails, y
A lance extending in the direction (LCE); a lance driving means (LDRV, PINI) for reciprocating the lance along the guide rail; and wall observation means (LC1 to 4) mounted on the lance. In addition, in order to facilitate understanding,
The reference numerals of the corresponding elements of the embodiment shown in the drawings and described later are added for reference.

According to this, since the lance (LCE) travels on the guide rail (RAI), the vibration caused by the travel of the lance (LCE) is small, and therefore the vibration received by the wall surface observation means (LC1-4) Since the number of images is small, the resolution is good and accurate wall observation can be performed.

[0017]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Guide Rail (RAI) and Lance
Each (LCE) has a cooling medium passage (R1, R2 / L1, L2). The guide rail (RAI) has a double pipe structure having an inner pipe (R2) for partitioning the cooling medium outward path and an outer pipe (R1) for partitioning the cooling medium return path. The guide rail (RAI) has a slide shoe (RSW1 to RSW1) on its lower bottom, which hits the furnace bottom of the coke oven carbonization chamber.
5).

The guide rail driving means (RCH, RDRV) includes an endless chain (RCH) connected to the guide rail (RAI) and extending in the y direction, and an electric motor (RCH) for driving the chain endlessly. RDRV). One of the guide rail (RAI) and the lance (LCE) is in the guide groove (Re), and the other is a ridge that fits in the guide groove and slides in the y direction guided by the guide groove.
(Pr). The guide rail (RAI) guides the coke remaining at the furnace bottom of the coke oven carbonization chamber at the tip thereof.
It has a scraper (SCR) for removing it outside the traveling path. Other objects and features of the present invention will become apparent from the following description of embodiments with reference to the drawings.

[0019]

FIG. 1 shows an outline of an embodiment of the present invention. FIG.
(A) is a plan view, in which a direction z perpendicular to the paper surface is a vertical direction, y is a depth direction of the coke oven carbonization chamber, and x is a width direction of the chamber. A guide rail RAI is movably supported in the y direction by a lance frame FRM mounted on a coke extruder (not shown), and a lance LCE is mounted on the guide rail RAI.

FIG. 1B shows a side view of the lance LCE. The lance LCE has an L shape, and a photographing head SHD having a cooling function is mounted on a vertical portion of the tip, and one-dimensional line cameras LC1 to LC4 are provided inside the photographing head SHD. The lance LCE is supported by the lance frame FRM via the support roller JR1, the holding roller SR1, and the side roller DR1 so as to be movable in the y direction. Lance LCE is a driving device LD
Driven by the RV, it can move in the y direction between the lance frame FRM and the coke oven kiln exit EX. A plurality of sliding shoes LSW1 to 5 are provided below the lance, and when the lance LCE moves outside the lance frame FRM, the lance LCE comes off the support roller JR1, the holding roller SR1, and the side roller DR1. Move on the guide rail RAI while sliding by the shoes LSW1-5.

FIG. 1C shows a side view of the guide rail RAI. The guide rail RAI is supported by the support roller JR2.
The lance frame FRM is movably supported in the y-direction via a holding roller SR2 and a side roller DR2. FIG. 2A schematically shows a guide rail RAI driving method. Under the lance frame FRM, the endless chain RCH and sprocket CG
A guide rail drive mechanism comprising R1, R2 and an electric motor with a reduction gear RDRV is provided. The chain RCH circulates between the sprocket CGR1 and the sprocket CGR2, and the sprocket CGR2 is an electric motor RD.
Driven by RV. That is, the chain RCH is driven to rotate. One part of the chain RCH is the guide rail R.
The guide rail RAI is fixed to a tab provided at a lower rear portion of the AI, so that the guide rail RAI is rotated along with the rotation of the chain RCH.
Also move. When the fixed point reaches the point S, the guide rail R
AI is the storage position in the lance frame FRM. At this time, the guide rail RAI is supported by the support roller JR2. If the electric motor RDRV drives the chain RCH so that the fixed point comes to the point E, the guide rail RAI
Moves into the furnace, that is, to the position shown by the dashed line in the figure (the position where the tip reaches the kiln outlet). At this time, the guide rail RAI is disengaged from the support roller JR2, and is laid on the hearth surface.
Slide and move with Lusch-RSW.

Before starting observation of the furnace wall, guide rails
The RAI and the lance LCE are stored in the frame FRM. When the observation of the furnace wall is started, the guide rail RAI is first moved toward the furnace. That is, the endless chain RCH is rotationally driven by the electric motor RDRV to drive the guide rail RAI forward. This is performed until the end of the guide rail RAI reaches the kiln exit EX. The guide rail RAI slides on the hearth surface from the tip shoe LSW1 and slides. At this time, guide rail R
The scraper SCR at the end of the AI removes coke remaining on the floor in front of the guide rail toward the side wall of the carbonization chamber, and the shoe LSW1 rides on the coke to guide the rail.
Le RAI is less likely to rattle. That is, the forward movement of the guide rail RAI becomes smooth. (A) of FIG.
(C) shows a state in which the tip of the guide rail RAI has reached the hearth surface FL.

Next, the lance LCE is driven into the furnace. That is, the lance LCE is connected to the lance drive motor LDR.
V is driven to rotate from the storage position in the frame FRM toward the furnace. In the furnace, the guide rail R is provided as described above.
Since the AI is inserted, the lance LCE moves toward the inside of the furnace while sliding on it with the lances-LSW1-5.

As described above, the lance L is moved on the guide rail RAI.
Due to the mechanism for moving the CE, the movement of the lance is very smooth and the vibration is small. Therefore Lance L
When moving the inside of the kiln from the furnace opening IN to the furnace exit EX while the CE photographs the inner wall of the furnace with the one-dimensional line cameras LC1 to LC4, the camera receives less vibration, so that image blurring is small, high speed and It is possible to perform highly accurate wall observation.

FIG. 2B shows the relationship between FIGS. 1B and 1C.
2 shows an enlarged cross section taken along line AA of FIG. 2, that is, an enlarged cross section of the lance frame FRM and the lance LCE. A rack RACK is provided on the upper skeleton upper surface of the lance LCE, and a plurality of sliding lances-LSW1 to 5 are provided on the lower skeleton lower surface. When the lance LCE is stored in the storage position in the frame FRM, the upper skeleton of the horizontal portion of the lance LCE is supported by the support rollers JR1, the holding rollers SR1, and the side rollers DR1, and the lower skeleton is side rollers. -Supported by LA DR1.

As shown in FIG. 3A, a groove Re having a V-shaped cross section is provided on the lower surfaces of the lances LSW1 to LSW5.
The guide rail RAI has a ridge Pr extending in the y direction and having a chevron cross section. The combination of the groove Re and the ridge Pr restricts the movement of the lance LCE with respect to the guide rail RAI in the width direction x. . With this, Lance LCE
Less sideways. In addition, as shown in FIG.
e may have an arc-shaped cross section and the ridge Pr may have an arc-shaped cross section. Further, as shown in FIG. A groove Re may be formed in the guide rail RAI.

On the rack RACK on the upper surface of the lance upper skeleton,
Since the pinion gear PINI connected to the output shaft of the electric motor LDRV with the speed reducer is engaged, when the electric motor LDRV rotates, the entire lance moves in the y direction. Further, an endless chain drive similar to the guide rail may be used.

The guide rail RAI is a steel pipe having a total length of about 18 m and a square cross section, and has a double structure. Cooling water is supplied to the inner pipe R2, and cooling water is recovered from the outer pipe R1. As a result, the guide rail due to the high temperature atmosphere in the furnace
Overheating of the fuel cell is prevented. Cooling water is supplied from and returned to a circulating water cooling device mounted on the coke extruder. When the guide rail RAI is stored in the frame FRM, the upper part of the guide rail RAI is pressed and the roller SR2 is pressed.
The lower part is a support roller JR2, and the side part is a side roller D
R2 supports. On the lower surface of the guide rail RAI, there are a tab for connecting the driving endless chain RCH, and a plurality of sliding rails-RSW 1 to 5. Ray
Lusch-RSW1-5 prevent the guide rail RAI from directly contacting the hearth brick, and enable a smooth sliding movement. Note that the residual core in front of the guide rail RAI
The dust is laterally displaced by the scraper SCR.

As described above, the guide rail RAI is driven by the endless chain method. Since the chain drive system is always outside the furnace, there is no need to consider the high temperature atmosphere inside the furnace. The chain RCH is a frame FRM.
Around the front sprocket CGR1 and the rear sprocket CGR2 fixed to the rear sprocket C
GR2 is rotationally driven by a rail drive motor RDRV. One part of the circulating chain RCH is connected to a tab provided on the lower surface of the guide rail RAI, so that when the chain RCH circulates, the guide rail RAI also moves. When the tip of the guide rail RAI reaches the furnace opening IN, the shoe RSW1 gets on the hearth surface and slides on it. The guide rail RAI includes the presser roller SR2, the support roller JR2 and the side roller DR2.
While sliding out of the furnace.

When the lance LCE is stored in the frame FRM, since the lance is supported by the support roller JR1 or the like, the entire weight of the lance is not directly received by the guide rail RAI. When the guide rail RAI moves, the lance LCE is not carried out together. After the guide rail RAI is moved into the furnace as described above, the lance LCE is moved from the storage position of the frame FRM into the furnace. As the lance LCE moves, the supporting rollers JR
1, Retain from the presser roller SR1, side roller DR1,
It slides on the upper surface of the guide rail RAI via the shoes LSW1-5. At this time, there is no displacement in the furnace width direction (x-direction) due to the engagement between the groove Re provided on the upper surface of the guide rail RAI and the lower surface of the shoes LSW1 to 5 and the ridge Pr.
At the time of retreat, contrary to the above, the lance LCE is first moved to the storage position, the lance is supported by the holding roller SR1, the support roller JR1, and the side roller DR1, and then the guide rail RAI is returned and driven. Back to the storage position.

In the prior art, since the lance moves while sliding on the hearth brick surface by the slide shoe of the lance, the vibration is about ± 5 mm vertically and about ± 5 mm horizontally.
The guide rail RAI is about 10 mm, whereas in the above-mentioned embodiment, the guide rail RAI has already been moved into the furnace and is stationary.
As the lance LCE moves on the smooth surface of the lance, the vibration caused by the movement is less than about 1 mm in the vertical direction and very little in the horizontal direction. Observation can be performed. Further, since the vibration accompanying the movement is very small, it is possible to increase the lance insertion / removal speed, and thus it is possible to complete the photographing of the entire inner wall surface in a short time.

FIG. 4 shows the photographing directions of the cameras LC1 to LC4 for photographing the inner wall surface of the carbonization furnace. Four cameras LC1
4 are arranged in the z-direction, so that the entire area of the vertical wall of the furnace is photographed by one reciprocating movement of the lance LCE. As shown in FIG. 4A, the camera LC1 (-
4) is attached to the photographing head SHD such that the center line of the visual field forms a horizontal angle θ with the vertical wall W1 so that the vertical wall W1 is photographed obliquely. θ is preferably set to 10 degrees or more and 20 degrees or less. If the angle is less than 10 degrees, the angle is too shallow and the captured image is blurred. If the angle is deeper than 20 degrees, only a narrow range (z width) can be observed. In the present embodiment, θ is 15 degrees.

The lenses of the one-dimensional CCD cameras LC1 to LC4 use vertical and horizontal different ratio lenses, and have a focal length of 24 mm in order to widen the photographing range. If the focal length is shorter than this, image distortion increases. Camera LC
1 to LC4 are one-dimensional line sensor cameras using a CCD and have a resolution of 2048 pixels / 1 line,
An image of one line in the vertical direction (z-axis direction) of the wall surface W1 is captured.

Therefore, the one-dimensional line cameras LC1 to LC
The image of one line to be photographed in No. 4 is a visual field region such as the LIF shown in FIG.

In order to obtain a two-dimensional image by using the one-dimensional camera, it is necessary to continuously photograph while driving the camera in the y direction. In the present embodiment, as shown in FIG. 4 (b), the lance LCE protrudes from the kiln opening (IN) to the kiln exit (EX) and is driven similarly to the ram head of the coke extruder. A photographing head SHD is mounted, and a camera is mounted inside. The lance LCE equipped with the photographing head SHD is reciprocally driven in the y direction by a lance drive motor LDRV (see FIG. 1) installed on a lance frame FRM outside the furnace. The lance drive motor LDRV
A motor driver (not shown) energizing the motor generates a driving start signal, an inversion driving signal, and a y-sync signal of one pulse each time the lance LCE advances or retreats, in addition to energizing the motor. Has functions. As described below,
The video signals of the one-dimensional CCD cameras LC1 to LC4 are y
It is extracted in synchronization with the synchronization signal. That is, the image signal (for one line) is sampled every time the camera moves by 1 mm in the y direction.

By the way, as shown in FIG. 4A, in order to photograph the left and right vertical wall surfaces W1 and W2, the camera LC1 is used.
It is necessary to turn LC4 right and left. In the present embodiment, the right vertical wall surface W1 is moved when the cameras LC1 to LC4 advance, that is, when the camera moves from the kiln opening IN to the kiln exit EX, the right vertical wall surface W1 is moved. When photographing the wall surface while retreating from the exit EX toward the kiln opening IN, the cameras LC1 to LC4 are shown in FIG. 6 in order to turn the cameras LC1 to LC4 horizontally so as to photograph the left vertical wall surface W2. Thus, the mounting AMT is mounted on the turning mount AMT, and the mount AMT is supported so as to turn with respect to the bracket BKT via the turning mechanism. The rotation mount AMT is rotated by a set angle by the rotation drive motor AZM, and the cameras LC1 to LC
4 with respect to the left vertical wall surface W2
Turn at a horizontal angle of 5 degrees.

The inner wall of the carbonization furnace of the coke oven is photographed by a camera after the fired coke is discharged to the kiln exit (EX) by a coke extruder. ~ 11
As high as 00 degrees, the refractory bricks forming the furnace wall are red or incandescent. In order to protect the imaging head SHD from this high temperature and radiation, the entire imaging head SHD was surrounded by a water cooling wall (double wall) through which cooling water flows. At the position where the objective lenses of the one-dimensional CCD cameras LC1 to LC4 oppose each other, a light-transmitting window made of heat-resistant glass is provided around the water-cooling wall. There is a gas purge head for injecting gas for dust purge. The cooling water flowing to the imaging head SHD is branched from the lance cooling water flowing inside the lance, and cools the imaging head SHD by high-speed flow. Since the furnace wall is in a red-hot state, lighting for photographing is not particularly required.

FIG. 6 shows the overall configuration of the image storage device connected to the one-dimensional CCD cameras LC1 to LC4. In this embodiment, four units (L) are used for photographing the left and right vertical wall surfaces W1 and W2.
C1 to LC4) one-dimensional CCD line cameras are used. The one-dimensional images captured by these cameras LC1 to LC4 are written into the RAMs of the image storage boards 111 to 114 by the image storage device 11, respectively. These images can be displayed on a monitor screen (DISP), alone or matched, and can be displayed on an image data recording device (HD;
The image data can be stored by a hard disk or a magneto-optical disk. As a result, a two-dimensional image displaying the entire left and right vertical wall surfaces W1 and W2 is obtained. The image data stored in the image data recording device HD is used for detailed analysis of the image and the like.
0 and a computer with a display MON,
As shown in FIG. 6B, an image analysis computer CP
TR is connected, and image data processed by the computer CPTR is hard-copyed by a printer PTR.
Can be obtained at Display MON and keyboard
The computer provided with the host 10 is a host computer of the image storage device 11 and is used for controlling, instructing and monitoring the image storage device 11.

The vertical wall photographing cameras LC1 to LC4 are driven to rotate. However, two sets of right wall photographing and left wall photographing may be provided, and the rotating device may be omitted, or a fixed photographing apparatus may be used. The camera and the mirror surface may be combined, and the mirror surface angle may be changed to photograph both wall surfaces.

Although the number of photographing cameras is four in total, the number of cameras is appropriately changed according to the area to be photographed.

In the present invention, the guide rail is driven along the furnace bottom of the coking chamber, but a mechanism for driving the guide rail along the ceiling or the wall surface of the coking chamber is also conceivable.

In these cases, the lance can be driven back and forth without bringing the lance into contact with the bottom of the coking chamber.
m, which is not preferable because it requires a large-scale facility to maintain the strength of the guide rail, which increases the amount of heat removal and damages the furnace body.

[Brief description of the drawings]

FIG. 1 is a drawing showing a coke oven carbonization chamber wall surface observation apparatus according to one embodiment of the present invention, where (a) is a plan view and (b)
(C) is a longitudinal sectional view of the device shown in (a) cut along a plane parallel to the z-axis and the y-axis.

2A is a side view of the guide rail RAI shown in FIG. 1, and FIG. 2B is an enlarged cross-sectional view taken along the line AA in FIG.

3 (a) to 3 (c) are enlarged cross-sectional views of guide rails RAI and lances-LSW1 to 5 having various cross-sectional shapes.

4A is a plan view showing a state in which a one-dimensional CCD camera LC1 on a lance LCE shown in FIG. 1 obliquely photographs a right vertical wall surface, and FIG. 4B is a photographing head shown in FIG. It is a longitudinal section of SHD.

5 is a plan view showing a part of a right vertical wall surface W1 of a carbonization furnace of a coke oven, and is a one-dimensional CCD camera L shown in FIG.
The field of view LIF of C1 is also shown.

FIG. 6 (a) is a one-dimensional CCD camera L shown in FIG.
FIG. 4 is a block diagram showing an outline of an image storage device 11 connected to C1 to LC4, and FIG. 6B is a computer for image solution analysis connected to a host computer (MON, 10) shown in FIG. FIG. 2 is a front view showing a CPTR and a printer PTR.

FIG. 7 (a) is a perspective view of the inner space of one carbonization furnace of a coke oven viewed from the outside of the kiln opening to the kiln outlet through the kiln opening, and FIG. It is a top view showing the mode of inserting a two-dimensional camera ITV into a furnace, and imaging a vertical wall surface.

FIG. 8A is a front view showing a single-screen shooting area AIF on a vertical wall surface when a two-dimensional camera ITV shoots a vertical wall surface as shown in FIG. 7B; )
3 is a plan view showing a captured screen image. FIG.

9A is a cross-sectional view showing a conventional example in which a two-dimensional camera ITV is mounted on a shoe-equipped boom, and FIG.
Is a plan view showing the plane arrangement.

[Explanation of symbols]

1: Extrusion ram 2: Extrusion ram head 3: Carbonization chamber 4: Loading port 5: Heat storage chamber 6: Coke 7: Guide car 10: Keyboard 11: Image storage device 12: Image capturing screen AD of two-dimensional camera : Data compressor AG: Memory control circuit AIF: Viewing area of two-dimensional camera AMT: Swivel mount AZD: Swivel drive circuit AZM: Swivel drive motor BKT: Camera mounting bracket BR: Refractory brick CGR1, 2 : Chain circling sprocket CL: Furnace ceiling CPTR: Computer for image analysis d: Horizontal resolution D: One-dimensional photographing width (line width) DISP: Two-dimensional display DR1, DR
2: Side roller DS: Display screen selection memory EX: Kiln exit FL: Furnace floor FRM: Lance frame HD: Image storage device IN: Kiln entrance ITV: Two-dimensional television camera JR1, JR
2: Support roller LCE: Lance LC1 to LC4: One-dimensional CCD camera for photographing left and right vertical walls LDRV: Lance drive motor LIF: Field of view of one-dimensional camera LSW1 to 5: Lance shoe L1: Lance inner tube L2: Lance outer tube MEM1-M
EM4: Memory MON: Monitor display PINI: Pinion gear Pr: Ridge PTR: Printer RACK: Rack RAI: Guide rail RCH: Chain RDRV: Rail drive motor Re: Groove RSW1
5: Rail shoe R1: Guide rail outer tube R2: Guide rail inner tube SCR: Scraper SHD: Shooting head SHU: Shure SR1, SR
2: Holder roller SSW: Side shoe WWL: Cooling wall W1: Right vertical wall W2: Left vertical wall θ: Horizontal shooting angle

Claims (7)

[Claims] A guide rail extending in the depth direction y of the coke oven carbonization chamber; guide rail drive means for inserting and removing the guide rail in the y direction along a furnace bottom in the coke oven carbonization chamber;
A lance mounted on the guide rail and extending in the y-direction; lance driving means for driving the lance back and forth along the guide rail; and wall observation means mounted on the lance;
A coke oven carbonization chamber wall surface observation device comprising: 2. A coke oven carbonization chamber wall surface observation apparatus according to claim 1, wherein each of said guide rail and said lance has a cooling medium passage. 3. The coke oven carbonization chamber wall surface observation apparatus according to claim 2, wherein the guide rail has a double-pipe structure having an inner pipe defining a cooling medium outward path and an outer pipe defining a cooling medium return path. . 4. The guide rail according to claim 1, wherein the guide rail has a slide shoe at its lower bottom which is in contact with the bottom of the coke oven carbonization chamber.
The coke oven carbonization chamber wall surface observation device according to any one of the above items 3. 5. The guide rail driving means includes an endless chain connected to the guide rail and extending in the y direction, and an electric motor for driving the chain endlessly.
The coke oven carbonization chamber wall surface observation device according to any one of claims 1 to 4. 6. The guide rail according to claim 1, wherein one of the guide rail and the lance has a guide groove, and the other has a ridge that fits in the guide groove and slides in the y direction guided by the guide groove. The coke oven carbonization chamber wall surface observation device as described in the above. 7. The guide rail has a scraper at its tip for removing coke remaining in the furnace bottom of the coke oven carbonization chamber out of the guide rail moving path. ~
7. The coke oven carbonization chamber wall surface observation device according to any one of 6.