WO2004090071A1 - コークス炉炭化室の診断装置および診断方法 - Google Patents
コークス炉炭化室の診断装置および診断方法 Download PDFInfo
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- WO2004090071A1 WO2004090071A1 PCT/JP2003/004477 JP0304477W WO2004090071A1 WO 2004090071 A1 WO2004090071 A1 WO 2004090071A1 JP 0304477 W JP0304477 W JP 0304477W WO 2004090071 A1 WO2004090071 A1 WO 2004090071A1
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- Prior art keywords
- distance
- furnace wall
- displacement line
- carbonization chamber
- laser
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Classifications
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B33/00—Discharging devices; Coke guides
- C10B33/08—Pushers, e.g. rams
- C10B33/10—Pushers, e.g. rams for horizontal chambers
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B41/00—Safety devices, e.g. signalling or controlling devices for use in the discharge of coke
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D19/00—Arrangements of controlling devices
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D21/00—Arrangements of monitoring devices; Arrangements of safety devices
- F27D21/0021—Devices for monitoring linings for wear
Definitions
- the present invention relates to a diagnostic apparatus and a diagnostic method for a coke oven coking chamber, and more particularly to a method for diagnosing carbonization (carbonation) on a furnace wall of a coke oven chamber.
- the present invention relates to a diagnostic device and a diagnostic method suitable for diagnosing furnace wall conditions such as furnace wall deficiency, furnace wall deformation, and widening due to movement.
- the coke oven carbonization chamber generally has a width of about 400 to about 500 mm and a length of about 15, 000 to about 20, in order to increase the heat transfer efficiency to the coal charged in the room. It is a narrow and narrow space with a width of 0.000 mm and a height of about 4,000 to 7,000 mm.
- the furnace wall of the coking chamber is made of firebrick. Even if the furnace wall is made of refractory bricks, continuous operation under the above-mentioned harsh conditions may result in loss of parts or adhesion of power May occur.
- Deterioration of the furnace wall in the coke oven coking chamber includes, for example, when the furnace wall itself is moved or deformed and the furnace width is widened, the bricks on the furnace wall are damaged and the furnace width is widened. There are various cases, such as when the furnace width is narrowed due to carbon adhering to the furnace wall.
- Japanese Unexamined Patent Publication No. 2000-333670 discloses an extrusion ram of a coke extrusion device.
- a maintenance / inspection method is disclosed in which an internal observation device equipped with a video camera, a laser distance meter, etc. is installed above, and this is used to observe the state of the interior of the carbonization chamber.
- the distances to the inner walls on both sides of the internal observation means are measured, and the distances to the respective furnace walls are measured as the distance of the furnace width.
- the furnace width of the normal coking chamber as shown in Fig. 1 and the carbon adhering to one furnace wall 20 as shown in Fig. 2 and the other furnace wall 20 There was also a problem in that the furnace width of the coking chamber where a defect occurred in 20 could not be distinguished, and there was a problem with accuracy.
- the main reason why only the furnace width of the coking chamber can be measured is that it is difficult to identify the position of the internal observation means introduced into the coking chamber.
- the extrusion ram provided with the internal observation means will be inserted smoothly into the carbonization chamber. In such a case, although the displacement of the extrusion ram from the center line in the longitudinal direction of the carbonization chamber is small at the entrance of the carbonization chamber, the deviation at the exit of the carbonization chamber is large because the carbonization chamber is an elongated space. It will be.
- the extrusion ram may meander instead of moving straight inside the carbonization chamber, depending on the load at the time of extrusion and carbon adhesion. Disclosure of the invention The present invention has been made in view of the above circumstances, and provides a diagnostic device and a diagnostic method for more accurately and quantitatively diagnosing a coke oven carbonization chamber than conventional maintenance and inspection methods.
- a diagnostic apparatus for a coke oven carbonization chamber includes: a coke extruder main body; an extrusion ram provided in the coke extruder main body; Internal observation means installed on the extruder body side or the extrusion ram side installed on the extruder main body side or the extruder ram side Light receiving means for receiving the laser irradiated from the laser output means (hereinafter referred to as “laser receiving means”) ), And means for recognizing the laser receiving position of the laser receiving means (hereinafter sometimes referred to as “laser receiving position recognizing means”).
- the diagnostic apparatus of the present invention can diagnose the condition of the coke oven carbonization chamber wall without reducing the coke production efficiency by using a coke extruder. Further, by providing the laser output means, the laser receiving means, and the laser receiving position recognizing means, when the internal observing means is introduced into the coking chamber, the trajectory of the internal observing means in the coking chamber can be specified.
- the actual measurement distance to each of the left and right furnace walls measured with the internal observation means as the reference position is used to calculate each of the left and right furnace walls from the longitudinal center line of the coking chamber. Can be calculated, and information on the left and right furnace wall conditions can be obtained individually.
- the laser output unit is installed on the extruder body, and the laser emitted from the laser output unit is used for
- the light is received by a laser receiving means provided on the extrusion ram.
- the internal observation means includes a distance measuring means and an image capturing means.
- the internal observation means has a heat-resistant casing, and the heat-resistant casing includes a distance measuring means, an image capturing means, a power supply means, and a measurement data processing means.
- the internal observation means may further include the above-described laser light reception position recognition means.
- a preferred example of the laser light receiving position recognition means is, for example, an image pickup means.
- the heat-resistant casing comprises one or more heat-insulating layers, and at least one of the heat-insulating layers is a layer made of ceramic fibers.
- the heat-resistant casing includes one or more heat-insulating layers, and at least one of the heat-insulating layers is a vacuum heat-insulating layer.
- the diagnostic method of the coke oven carbonization chamber according to the present invention is to measure the distance to the furnace wall at a plurality of longitudinal positions at any height of the coke oven carbonization chamber by using the internal observation means of the coke oven carbonization chamber.
- Measurement distance displacement line from the longitudinal center line of the carbonization chamber to the furnace wall (hereinafter, sometimes referred to as “measurement distance displacement line”), and determine the measurement distance displacement line based on the measurement distance displacement line.
- a leveling displacement line is obtained, the measured distance displacement line is compared with the leveling displacement line, and Z or a design furnace wall distance displacement line in the longitudinal direction of the carbonization chamber (hereinafter referred to as a “design distance displacement line”)
- the state of the furnace wall of the carbonization chamber is diagnosed by comparing the leveling displacement line with the leveling displacement line.
- the measured distance displacement line indicates the distance from the longitudinal center line of the coking chamber to the furnace wall, which was determined from the distance to the furnace wall actually measured by the internal observation means, along the longitudinal direction of the coking chamber.
- the leveling displacement line was a leveling (smoothing) of the measured distance displacement line by equalizing the displacement of the furnace wall surface due to the adhesion of force and the destruction of the furnace wall.
- the design furnace wall distance displacement line in the longitudinal direction of the coking chamber is a line that indicates the distance from the center line in the longitudinal direction of the coking chamber to the furnace wall when the coke oven is designed in the longitudinal direction of the coking chamber.
- the displacement due to a change in the furnace wall surface such as carbon adhesion or chipping of the furnace wall can be found, and the design distance in the longitudinal direction of the gasification chamber is obtained.
- the displacement line with the leveling displacement line By comparing the displacement line with the leveling displacement line, the displacement due to the movement and deformation of the furnace wall itself can be found.
- the condition of the furnace wall in the coking chamber can be quantitatively diagnosed. According to the present invention, the condition of each furnace wall on the left and right sides of the coking chamber can be further diagnosed. Therefore, even when no abnormality is recognized in the entire furnace width as described above, the condition of each furnace wall can be determined. Can be accurately diagnosed.
- FIG. 1 A horizontal cross-sectional view of a coking chamber with no defects on the furnace wall.
- FIG. 2 Horizontal cross section of a carbonization chamber with defects and carbon adhesion on the furnace wall.
- FIG. 3 A schematic side view illustrating a coke oven diagnostic apparatus of the present invention.
- FIG. 4 is a schematic side view illustrating a coke oven diagnostic device of the present invention.
- FIG. 5 is a horizontal sectional view illustrating an internal observation unit.
- FIG. 6 is a side view illustrating another example of the coke oven diagnostic device of the present invention.
- FIG. 7 is an explanatory view illustrating the positional relationship of the internal observation means in the carbonization chamber.
- FIG. 8 is an explanatory diagram illustrating the insertion state of the extrusion ram and the displacement of the laser light receiving position.
- FIG. 9 is an explanatory view exemplifying an inclination of a laser in a carbonization chamber.
- FIG. 10 is a horizontal cross-sectional view at an arbitrary height of the carbonization chamber illustrating a furnace wall state.
- Fig. 11 A horizontal cross-sectional view at an arbitrary height of the carbonization chamber, conceptually showing the area surrounded by the leveling displacement line and the measurement distance displacement line.
- Fig. 12 A horizontal cross-sectional view at an arbitrary height of the coking chamber, conceptually showing the area surrounded by the leveling displacement line and the design distance displacement line.
- Fig. 13 Graph showing the displacement (XL) of the laser light receiving position at a distance L from the inlet of the carbonization chamber.
- Fig. 14 Graph showing the trajectory (D L ) of the extrusion ram at a distance L from the inlet of the coking chamber.
- Fig. 15 Graph showing the distance from the longitudinal center line of the coking chamber to the left and right furnace walls.
- Figure 16 Graph showing measured distance displacement lines, leveling displacement lines, and design distance displacement lines for the left furnace wall of the coking chamber.
- Fig. 17 Graph showing measured distance displacement lines, leveling displacement lines, and design distance displacement lines for the right furnace wall of the coking chamber.
- Fig. 18 Graph showing measured distance displacement lines, leveling displacement lines, and design distance displacement lines for the furnace width of the coking chamber.
- Fig. 19 Graph showing measured distance displacement lines and designed distance displacement lines for the left furnace wall of the carbonization chamber with different production cycles.
- Fig. 20 Measurement distance displacement line Graph showing the design distance displacement line for the right furnace wall of the carbonization chamber with different production cycles.
- Diagnostic device for coke oven carbonization chamber First, a diagnostic device for a coke oven carbonization chamber of the present invention will be described.
- Extruder main body Extrusion ram provided on coke extruder main body, internal observation means installed on the extrusion ram, on the extruder main body side or the extrusion ram side
- the laser output means provided, a light receiving means for receiving a laser beam emitted from the laser output means, and a means for recognizing a laser light receiving position of the laser light receiving means.
- the diagnostic device can diagnose the condition of the furnace wall in the coke oven carbonization room without reducing the coke production efficiency by using the coke extruder.
- the coextrusion machine is not particularly limited as long as it has a coextrusion machine main body and an extrusion ram provided in the coextrusion machine main body.
- FIG. 3 is a schematic side view illustrating a diagnostic apparatus for a coke oven carbonization chamber of the present invention.
- the diagnostic apparatus includes an extruder main body 1 provided with a laser output means 4, an extruding ram 2 introduced into a carbonization chamber by the extruder main body 1, and the extruding ram 2 includes an internal observation means 3, a laser A laser receiving means 5 for receiving the laser beam emitted from the output means 4 and a laser light receiving position recognizing means 6 are provided. Further, as shown in FIGS. 4 and 5, it is also a preferable embodiment to provide the internal observation means 3 with the laser receiving position recognition means 6.
- the inspection means provided in the internal observation means can be appropriately selected according to the purpose of diagnosis.
- the image pickup means for observing the state of the furnace wall of the coking chamber, or the distance to the wall of the coking chamber is determined.
- a distance measuring means for measuring can be mentioned.
- the internal observation means includes an image capturing means and a distance measuring means.
- the image capturing means include a (digital) video camera, a CCD camera, and a fiber scope.
- Examples of the distance measuring means include a non-contact type distance meter such as a microwave distance meter and a laser distance meter.
- Microwave distance meter It measures the time from irradiating an electromagnetic wave in the mouth wave or millimeter wave region to the wall surface of the coking chamber to collecting the reflected electromagnetic wave, and converts the time to a distance.
- a triangulation type as a laser one distance meter.
- the internal observation means includes a plurality of power supply means for operating the distance measurement means and the image pickup means, and a plurality of measurement data processing means for processing and storing measurement data from the distance measurement means and the image pickup means. It may have a means.
- the internal observation means has heat-resistant casing, and the heat-resistant casing includes the above-described distance measuring means, image capturing means, power supply means, and measurement data processing means. is there. This is because, by providing the above-mentioned means in the heat-resistant casing, the inside observation means can protect each means from the high heat of the carbonization chamber and make the inside observation means removable and portable.
- the internal observation means includes a laser output means or a laser light reception position recognition means described later.
- FIG. 5 is a horizontal sectional view illustrating the internal observation means 3 installed in the extrusion ram 2.
- the internal observation means 3 has a heat-resistant casing 10 composed of three heat-insulating layers, inside which are a power supply means 13, a video camera which is a laser-light receiving position recognition means 6, and a distance measurement means 11. It is equipped with a laser distance meter, measurement data processing means 12, a video camera as image capturing means 14 for observing the surface displacement (concave and convex) of the furnace wall, and a laser type position detection switch 15 , Connected by wiring 19.
- the internal observation means 3 can be used. It can be made a removable portable type.
- the heat-resistant casing 10 serves as a transmitting portion of a laser irradiated from the laser distance meter 11 or a visual field portion of the laser light receiving position recognizing means 6 and the image capturing means 14.
- Windows 18 are provided.
- the window 18 is preferably made of metal-deposited heat-resistant glass from the viewpoint of heat insulation.
- the heat-resistant casing 10 is for protecting measurement means such as a laser distance meter 11 and video cameras 6 and 14 from heat in the carbonization chamber, and has one or more heat insulating layers. If so, there is no particular limitation.
- the heat-insulating layer constituting the heat-resistant casing 10 include a heat-insulating layer made of ceramic fibers and a vacuum heat-insulating layer. The layer made of ceramic fibers is excellent in heat resistance and fire resistance. It is preferable that at least one of the heat insulating layers constituting the heat-resistant casing 10 be a layer made of ceramic fibers.
- the heat-resistant casing is a heat-resistant casing comprising a plurality of heat-insulating layers.
- a ceramic fiber plate layer for example, a ceramic fiber plate layer, a microporous insulating plate layer having low heat conductivity, and a fire-resistant area.
- Those having a layer made of ceramic fibers having a high use temperature can be suitably used as heat-resistant casing.
- At least one of the heat insulating layers constituting the heat-resistant casing is a vacuum heat insulating layer.
- the vacuum heat-insulating layer is, for example, a layered hermetic container that can be fitted inside the heat-resistant casing, and is not particularly limited as long as the pressure is reduced so as to have a heat-insulating effect.
- the container is preferably made of a transparent material such as heat-resistant glass.
- the material of the layered closed container is formed of a transparent member, or a part of the layered closed container is formed as an opening, and such a portion is used as a transmitting portion of a laser beam irradiated from the laser distance meter 11 or Alternatively, it is also a preferable embodiment to use the field of view of the laser light receiving position recognition means 6 and the image pickup means 14.
- the heat-resistant casing 10 may be provided with a metal guide frame as an inner layer and a porous layer as an outer layer for protecting the heat-insulating layer from mechanical damage. Good.
- the internal observation means is preferably provided with at least two laser distance meters 11 1 and 11 1 for irradiating the right and left furnace walls. If two laser one-meters 1 1 and 1 1 are provided, the distance to the respective furnace walls on both sides can be measured at the same time. After measuring the distance to, change the direction of the laser rangefinder 11 and measure the distance to the other furnace wall.
- a mirror 17 is installed in front of the laser range finder so that the laser beam emitted from the laser range finder 11 is reflected by the mirror 17 and irradiates the furnace wall 20. Although it is configured, it may be installed so that the laser beam is directly irradiated on the furnace wall. It is also preferable to increase the measurement accuracy by installing a bandpass filter 16 that transmits only the light in the specific wavelength region to which the wavelength of the laser beam emitted from the laser rangefinder 11 belongs, in front of the laser rangefinder 11. It is an aspect.
- the measurement data processing means 12 is a means for storing data measured by a laser distance meter 11 or a video camera 6, 14 or the like. There is no particular limitation, and examples thereof include a recording medium such as a memory and a hard disk. Further, the measurement data processing means 12 may be a programmable computer having a function of controlling electronic components, processing and storing measurement data, for example, a power on / off function by a timer, The program can be programmed to save the measured data in relation to the time and to perform the arithmetic processing of the measured data.
- the internal observation means 3 includes a laser complete position detection switch 15 for detecting that the inside of the carbonization chamber has been entered.
- the laser set position detection switch 15 irradiates a laser toward a reflector (not shown) attached to the frame of the extruder, and detects laser reflected light reflected by the reflector, for example.
- the power of electronic components in the internal observation means is turned on or off in conjunction with the power supply means 13.
- the reflector it is preferable to use, for example, a heat-resistant reflector in consideration of radiation heat of the extrusion ram.
- the laser output means is not particularly limited, for example, a perfect circular collimated (parallel) light output laser marker having a wavelength of 635 nm and an output of 15 mW can be used.
- the laser-light receiving means is not particularly limited as long as it has a surface capable of receiving a laser beam emitted from the laser-output means, and is, for example, a plate-shaped one provided with a grid pattern. Can be mentioned. This is because if a grid pattern is provided, the displacement of the laser light receiving position can be easily measured by the laser light receiving position recognition means. Further, in the case where the laser one light receiving means is provided on the extrusion ram side, heat resistance is required. Therefore, for example, it is preferable to use a ceramic plate or a steel plate.
- the laser light receiving position recognizing means is not particularly limited as long as it can recognize the laser light receiving position irradiated on the laser light receiving means.
- the image capturing means the laser receiving position irradiated on the laser receiving means is captured, and the captured image data is recorded on a recording medium such as a memory, a hard disk, or a video tape, or the measurement data described above.
- a recording medium such as a memory, a hard disk, or a video tape, or the measurement data described above.
- Those that can be stored in the evening processing means are preferable, and examples thereof include (digital) video cameras, CCD cameras, and fiberscopes.
- the laser receiving unit and the image capturing unit should be used in accordance with the performance such as the field of view and resolution of the image capturing unit (laser receiving position recognition unit). It is preferable to set the distance between the laser receiving means and the image pickup means to some extent (for example, about 0.2 to 0.3 m), and It is more preferable to keep it constant. When the distance between the laser receiving means and the image pickup means is short and constant, the focal point of the image pickup means is set. This is because the measurement is easier and the accuracy of measuring the displacement of the laser receiving position can be improved.
- the laser output means can be installed on the extruder main body side or on the extrusion ram side.
- the laser output means is installed on the extruder main body, and the laser irradiated from the laser output means is extruded.
- a mode in which light is received may be used.
- the position of the internal observation means in the carbonization chamber can be specified.
- the same heat resistance as when the laser light reception position recognition means 6 is used for the internal observation means is used for the internal observation means. It is a preferred embodiment to use it in a casing.
- the laser output means is provided on a frame provided on the extruder main body or on a frame provided on the extruder main body side and separated from the extruder main body. This is because if the extruder is installed on a frame that is separated from the main body of the extruder, it is possible to reduce the influence of the extruder shaking during coextrusion.
- the internal observation means 3 is installed on the extrusion ram in the embodiment shown in FIG. 4, but it can be changed to the following embodiment.
- the use of the above-described coke oven diagnostic apparatus of the present invention makes it possible to specify the trajectory of the internal observation means introduced into the coke oven chamber when inspecting the coke oven carbonization chamber. Then, if the trajectory of the internal observation means is known, the distance from the longitudinal centerline of the coking chamber to each of the left and right furnace walls is determined based on the distance to the left and right furnace walls measured using the internal observation means. Can be.
- an extruding ram is inserted into a coke oven coking chamber having a total length (T).
- T total length
- a trajectory (D of the internal observation means at a distance L from the carbonization chamber entrance From the distances (D.) and (D ⁇ ) and the displacements (XJ and ( X ⁇ )), a trajectory (D of the internal observation means at a distance L from the carbonization chamber entrance; A method including a step of correcting the measurement distance (YL) based on the trajectory (DL) to obtain a distance from the longitudinal centerline of the coking chamber to the furnace wall can be cited.
- the trajectory (DL) is a distance from the longitudinal center line of the coking chamber at a distance L from the entrance of the coking chamber to the internal observation means.
- the trajectory (DL) and the distances ( DQ , DT ) are, for convenience, in the longitudinal direction of the coking chamber from the coking chamber entrance (M / S: machine side) to the exit (CZS: coexide side).
- M / S machine side
- CZS coexide side
- a positive sign indicates that the laser receiving position at the distances L and ⁇ from the carbonization chamber entrance moves rightward with respect to the light reception position at the carbonization chamber entrance, in the opposite case a negative sign. in other words, a positive sign when the extrusion ram (or internal observation means) moves to the left furnace wall.
- the measured distance (Y L) is From the carbonization chamber entrance to the exit, the measurement distance from the internal observation means to the left furnace wall is represented by a positive sign, and the measurement distance to the furnace wall is represented by a negative sign.
- the measurement of the distance (YL) it is preferable to simultaneously measure the distance from the internal observation means to the right furnace wall and the distance to the left furnace wall as described above.
- the distance (Y) to the furnace wall can be measured using the distance measuring means described above, and is preferably measured with a laser distance meter.
- the distance (YL) is a distance converted from the distance from the center of the internal observation means to the furnace wall based on the distance of the laser irradiation path of the laser distance meter.
- the measurement of the distance (YL) is preferably performed continuously over the entire length (T) of the carbonization chamber. However, depending on the performance of the distance measuring means, the measurement of the distance (YL) may be performed at a plurality of points of the total length (T) of the carbonization chamber. It may be.
- the measurement can be performed, for example, when extruding coke with an extrusion ram, pulling back the extrusion ram after extruding coke, or inserting the extrusion ram into an empty kiln. If the moving speed of the extrusion ram is kept constant during measurement, the measurement distance (YL) and the distance L from the carbonization chamber entrance can be related.
- the distance L from the inlet of the carbonization chamber is, for example, a method in which the moving speed of the extrusion ram is kept constant, a time counting function is provided in the measurement data processing means or the extruder body, and the moving distance is obtained from the product of the speed and time Alternatively, in the extruder main body, it may be calculated from a motor for driving the extrusion ram or the number of rotations of the drive unit.
- the measurement distance (Y distance) at the distance L from the carbonization chamber entrance can be stored in the measurement data overnight processing means, and is stored in the measurement data overnight processing means in association with the above-mentioned time or the distance L.
- D ⁇ 1/2 (furnace width at carbonization chamber outlet) _ ⁇ ⁇ formula (2) Y in the formulas (1) and (2).
- Y ⁇ is the distance to the left furnace wall (with a positive sign)
- the furnace width at the inlet and outlet of the coking chamber is the sum of the absolute values of the left and right measured distances at the inlet and outlet of the coking chamber. be able to.
- the furnace width at the inlet and outlet of the coking chamber may adopt the value of the width of the metal frame provided at the inlet and outlet of the coking chamber.
- the displacement ( XL ) of the laser receiving position at the distance L from the laser receiving position at the entrance to the coking chamber and the laser at the entrance of the coking chamber are calculated.
- the process of measuring the displacement ( X ⁇ ) between the light receiving position and the laser receiving position at the exit of the carbonization chamber will be described.
- the position of the laser beam irradiated from the laser output means to the laser light receiving means is imaged by a video camera which is the laser receiving position recognition means 6, and the image of the laser receiving position at the entrance of the carbonization chamber and the distance from the entrance of the carbonization chamber
- the displacement ( XL ) is visually compared with the image of the laser receiving position at L and the image of the laser receiving position at the entrance of the coking chamber and the image of the laser receiving position at the exit of the coking chamber are visually observed.
- the displacement ( X ⁇ ) can be determined by comparison.
- the captured image is processed by image analysis means (for example, a computer having image analysis software), and the displacement of the laser receiving position at the entrance of the coking chamber and the distance of the laser receiving position at the distance L from the entrance of the coking chamber (X L ) and the displacement ( ⁇ ⁇ ) between the laser receiving position at the entrance of the coking chamber and the laser receiving position at the exit of the coking chamber are also preferable.
- the displacement (XL, ⁇ > is the displacement in the horizontal direction.
- the imaging of the laser receiving position by the laser receiving position recognition means is preferably performed simultaneously with the measurement of the distance to the furnace wall (Y: described above). For example, when coke is extruded with an extrusion ram, coke is extruded.
- the imaging of the laser receiving position by the laser single receiving position recognition means is performed over the entire length (T) of the carbonization chamber. It is preferable that the measurement be performed continuously, but the measurement may be performed at a plurality of points along the entire length (T) of the carbonization chamber, depending on the performance of the laser-light receiving position recognition means.
- FIG. 8 is an explanatory diagram illustrating an insertion state of the extrusion ram and a change in the laser light receiving position when the extrusion ram moves in the carbonization chamber.
- the inserted extrusion ram is approaching the left furnace wall of the carbonization chamber, and in this case, the state of the change in the laser receiving position of the laser receiving means 5 as viewed from the extruder side is shown in Fig. 8 (a).
- FIG. 8 (a) exemplifies the laser receiving position at the entrance of the coking chamber, and the black circle points shown on the grid of the laser receiving means correspond to the light receiving positions of the laser at the entrance of the coking chamber.
- Fig. 8 exemplifies the laser receiving position at the entrance of the coking chamber, and the black circle points shown on the grid of the laser receiving means correspond to the light receiving positions of the laser at the entrance of the coking chamber.
- FIG. 8 (b) shows an example of the laser receiving position when the extruding ram is moving in the carbonization chamber.
- the black circle points indicate the current (moving distance L) laser receiving position.
- the white circle points indicate the laser receiving position at the entrance of the carbonization chamber.
- the current laser receiving position black circle point
- the current laser receiving position is shifted to the right side of the grid because the extrusion ram is located on the left furnace wall side of the carbonization chamber.
- the white circle points indicate the laser receiving position at the entrance of the carbonization chamber.
- the laser receiving position at the entrance of the coking chamber and the displacement ( XL ) of the laser receiving position at the distance L from the entrance of the coking chamber are the white point and the black point in Fig. 8 (b).
- the displacement ( ⁇ ⁇ ) between the laser light receiving position at the carbonization chamber entrance and the laser light reception position at the carbonization chamber exit is the horizontal distance between the white circle point and the black circle point in Fig. 8 (c).
- X D D T — D.
- X D D T — D.
- X D D T — D.
- X D D T — D.
- X D D T — D.
- X D D T — D.
- X D D T — D.
- FIG. 9 is an explanatory view illustrating the inclination of the laser with respect to the longitudinal center line of the carbonization chamber.
- W means that the laser irradiated at the entrance of the carbonization chamber is shifted by W at the exit of the carbonization chamber about 16 m away. If the sign of W is positive, , Coking chamber longitudinal It is tilted from the right side to the left side of the direction center line, and the laser was irradiated from the entrance side of the carbonization chamber. If the sign of W is negative, the laser is in the longitudinal center of the carbonization chamber. It was tilted from the left side to the right side of the line, indicating that the laser was being emitted from the inlet side of the carbonization chamber.
- Le one The one shift at a distance L from the carbonization chamber inlet can and children that represent at WX (LZT), displacement (X L) and distance (D.) from correcting the tilt amount of the laser one By doing so, the trajectory (DL) of the true internal observation means can be obtained, and the trajectory (DL) of the internal observation means is
- (D) is the distance from the longitudinal center line of the carbonization chamber to the internal observation means at a distance L from the entrance of the carbonization chamber, and represents the locus of the internal observation means inside the carbonization chamber.
- the exact distance (SL) from the furnace to the furnace wall can be determined.
- the formula for obtaining the measured distance (YL) and said trajectory (D L) may be modified appropriately in accordance with the POI down bets number of measurement data such as the measured distance (YL) and displacement (XL).
- the diagnostic method of the coke oven carbonization chamber of the present invention uses the internal observation means of the coke oven carbonization chamber to determine the coke oven carbonization chamber at a plurality of positions in the longitudinal direction at any height of the coke oven carbonization chamber.
- the distance to the furnace wall is measured, and a distance displacement line from the longitudinal center line of the coking chamber to the furnace wall (hereinafter referred to as a “measurement distance displacement line”) is determined.
- a leveling displacement line of the distance displacement line is obtained, the measured distance displacement line is compared with the leveling displacement line, and Z or the design furnace wall distance displacement line in the longitudinal direction of the carbonization chamber and the leveling displacement line are compared with each other. By comparing the conditions, the condition of the furnace wall in the coking chamber is diagnosed.
- a leveled displacement line of the measured distance displacement line is obtained based on the measured distance displacement line, and the sum of the areas surrounded by the leveled displacement line and the measured distance displacement line, and Z
- the sum of the areas surrounded by the designed furnace wall distance displacement line in the longitudinal direction of the coking chamber and the leveling displacement line may be obtained, and the furnace wall state of the coking chamber may be diagnosed based on the sum of the areas. This is a preferred mode.
- the means for observing the interior of the coke oven carbonization chamber used in the diagnostic method of the present invention is not particularly limited, but is, for example, the same as that provided in the above-described diagnostic apparatus of the coke oven carbonization chamber of the present invention. Preferably, one is used.
- the distance to the furnace wall at multiple positions in the longitudinal direction at any height in the coke oven carbonization chamber is measured at multiple positions in the longitudinal direction of the carbonization chamber, and may be measured at at least two or more points. . It is also a preferred embodiment of the present invention that the distance between the furnace walls is continuously measured in the length direction of the coking chamber by infinitely performing the measurement at the plurality of positions.
- the distance to the furnace wall may be measured at an arbitrary height according to the height of the coke oven carbonization chamber.
- the measurement be performed so that the height between the measured heights is substantially equal.
- a method of measuring a distance to a furnace wall at a plurality of positions in a longitudinal direction at an arbitrary height of a coke oven carbonization chamber and obtaining a distance displacement line from a longitudinal centerline of the carbonization chamber to the oven wall is as follows. Although not particularly limited, as described above, it is a very preferable embodiment to obtain the value using the diagnostic device for the coke oven carbonization chamber of the present invention.
- a method for diagnosing the state of the furnace wall based on each distance displacement line will be described.
- a leveling displacement line of the measuring distance is obtained based on the measuring distance displacement line obtained by the measurement, and the measuring distance displacement line and the leveling displacement line are compared. Diagnosis of the condition of the furnace wall in the coking chamber is made by comparing the displacement line with the design distance displacement line.
- the leveling displacement line is obtained by measuring the distance to the furnace wall and observing images of the surface displacement of the furnace wall surface at the plurality of positions using an image capturing unit provided in the internal observation unit.
- the surface displacement of the furnace wall is, for example, unevenness of the furnace wall surface due to adhesion or destruction of a force on the furnace wall, and is caused by image capturing means 14 provided in the internal observation means 3 shown in FIG.
- An image taken by a video camera can be compared with the measurement result of the measured distance displacement line, and the displacement part corresponding to the surface displacement of the furnace wall at the measured distance displacement line can be averaged.
- the measurement distance displacement line is compared with the leveling displacement line by comparing the distance of the leveling displacement line and the distance of the measurement distance displacement line at the same position in the longitudinal direction of the carbonization chamber.
- the measurement distance displacement line is compared with the leveling displacement line by comparing the distance of the leveling displacement line and the distance of the measurement distance displacement line at the same position in the longitudinal direction of the carbonization chamber.
- the value obtained by subtracting the distance of the measured distance displacement line from the distance of the leveling displacement line is a plus (positive)
- the distance to the furnace wall is short, and the furnace wall at that position is short.
- the value obtained by subtracting the distance of the measured distance displacement line from the distance of the leveling displacement line is minus (negative)
- the distance to the furnace wall is long, and the furnace wall at that position is missing. Can be diagnosed.
- the distance to the furnace wall is shortened due to the deformation and movement of the furnace wall itself. Diagnosis can be made, and when the subtracted value is negative (negative), it can be diagnosed that the distance to the furnace wall is increasing due to movement or deformation of the furnace wall itself.
- the distance displacement line to the right furnace wall of the coking chamber is represented as a negative value for convenience, but in the diagnostic method of the present invention, the measured distance displacement line, the leveling displacement line, and the design distance displacement line are used. A similar diagnosis can be made by comparing the absolute values of Can be.
- the displacement of the entire furnace wall is compared by comparing the leveled displacement line with the measured distance displacement line, and comparing Z or the designed distance displacement line with the leveled displacement line.
- FIG. 10 is a horizontal cross-sectional view at an arbitrary height of the coking chamber, illustrating a furnace wall state of the coke oven coking chamber.
- the hatched portion 37 conceptually represents the space inside the coking chamber after the furnace wall of the coking chamber is deformed by a sectional view, and the broken line 38 shows the position of the furnace wall at the time of design.
- diagnosis of the furnace wall condition based on the comparison of each displacement line can be performed at a specific location (arbitrary height , At a specific distance in the carbonization chamber longitudinal direction).
- the condition of each furnace wall at an arbitrary height can be diagnosed. Therefore, according to the present invention, as the displacement of the horizontal cross-sectional area of the carbonization chamber, the sum of the areas surrounded by the leveling displacement line and the measurement distance displacement line, and Z or the design distance displacement line, The sum of the areas enclosed by the leveling displacement lines is obtained for each furnace wall, and the state of the furnace wall in the coking chamber can be diagnosed based on the sum of the areas.
- the sum total of the area enclosed by the leveling displacement line and the measurement distance displacement line is an index indicating displacement due to a change in the furnace wall surface such as adhesion or damage of each furnace wall.
- the sum of the areas surrounded by the distance displacement line and the leveling displacement line is an index indicating the displacement due to the furnace wall itself moving and deforming and the furnace width being narrowed. Since the sum of the areas can be used as a standard for accurately and quantitatively evaluating the condition of each furnace wall at an arbitrary height, if the sum of the areas is used as an index, for example, a plurality of coke ovens may be used. The relative evaluation of the deterioration and aging of the installed carbonization chambers and the carbonization chambers with different coke production times becomes easier.
- the area (32, 33) surrounded by the leveling displacement line 30 and the measuring distance displacement line 31 is shown by using a horizontal sectional view at an arbitrary height of the carbonization chamber.
- the sum of the areas is represented by the sum of all the areas of the part for each furnace wall.
- the sum of the areas is, for example, the area of each part of the furnace wall on the left side of the coking chamber. If the value obtained by subtracting the distance of the measured distance displacement line 31 from the distance of the leveling displacement line 30 is positive (positive), the area 33 is given a plus (positive) sign, and the subtraction is performed. If the value obtained is negative (negative), the area 32 may be given a negative (negative) sign to obtain the sum.
- the state of each furnace wall at an arbitrary height can be diagnosed as having a large effect due to carbon adhesion.
- the sum of the areas is minus In the case of (negative), it can be diagnosed that the effect of the furnace wall loss is large.
- the displacement lines for the right furnace wall of the carbonization chamber are represented by negative values for convenience, but the absolute values of the measured distance displacement line, the leveling displacement line, and the design distance displacement line are used. A similar diagnosis can be made by comparison.
- the area (35, 36) surrounded by the design distance displacement line 34 and the leveling displacement line 30 is shown by using a horizontal cross-sectional view at an arbitrary height of the carbonization chamber.
- the sum of the areas is represented by the sum of all the areas of the portion.
- the area 35 Is given a plus sign, and if the subtracted value is a minus (negative), the area 36 may be given a minus (negative) sign to obtain the sum.
- the sum of the areas is positive (positive)
- the sum of the areas is negative (negative)
- the same diagnosis can be made for the right furnace wall of the coking chamber by comparing using the absolute values of the measured distance displacement line, the leveling displacement line, and the design distance displacement line.
- the present invention can be changed to the following modes.
- the distance to the furnace wall at a plurality of positions in the longitudinal direction at any height of the coke oven carbonization chamber was measured for each coke production, and the furnace was measured from the longitudinal center line of the coke oven chamber. It is characterized by finding the displacement line to the wall (hereinafter referred to as “measurement distance displacement line”) and diagnosing changes in the furnace wall condition based on the change in the obtained measurement distance displacement line with the increase in the number of coke productions. And
- the change in the furnace wall state is the change over time in the furnace wall state with the number of times of coke production, and can be diagnosed by comparing the measured distance displacement line with time.
- the measurement of the distance to the furnace wall is performed for each coke production, and It is preferable to measure at every coke production, but it may be measured at a rate of 2 to several times of coke production, for example, to the extent that changes in the furnace wall state can be diagnosed. As described above, the measurement is preferably performed at the time of extruding (discharging) the formed coke, but only the measurement of the distance between the furnace walls may be performed separately before and after the coke production.
- the method for diagnosing a coke oven carbonization chamber according to the present invention can be further modified as follows.
- the distance to the furnace wall at a plurality of positions in the longitudinal direction of the coke oven at any height of the coke oven carbonization chamber was measured for each coke production, and the longitudinal direction of the carbonization chamber was measured.
- a distance displacement line from the center line to the furnace wall (hereinafter referred to as a “measurement distance displacement line”) is obtained, and a leveling displacement line of the measurement distance displacement line is obtained based on the obtained measurement distance displacement line.
- the sum of the area surrounded by the leveling displacement line and the measurement distance displacement line is determined, and based on the change in the sum of the areas with an increase in the number of times of coke production, Changes can be diagnosed.
- the measurement of the distance to the furnace wall is performed at each coke production as described above, and is preferably measured at each coke production.However, to the extent that changes in the furnace wall state can be diagnosed, for example, coke production 2 to It may be measured once every few times. Further, the measurement is preferably performed at the time of extruding (discharging) the produced coke, but only the measurement between the furnace walls before and after coke production may be separately performed.
- the diagnosis method of the present invention it is also possible to judge the repaired portion of the furnace wall, the repair method, or the repair time.
- the method for repairing the carbonization chamber include a thermal spray repair method for filling a defective portion of the furnace wall and a method for burning off and removing deposits such as carbon.
- the repair method can be selected according to the condition of the furnace wall. Just fine. Examples
- the present invention will be described in more detail with reference to examples. However, the present invention is not limited to the following examples, and changes and embodiments in a range not departing from the gist of the present invention are described. Are all included in the scope of the present invention.
- the laser-light receiving means 5 was installed.
- the internal observation means 3 include a laser distance meter 11, a video camera as the laser receiving position recognition means 6, a programmable computer as the measurement data processing means 12, a power supply means 13, and an image pickup as shown in FIG.
- a video camera as means 14 and a device equipped with a laser complete position detection switch 15 were used.
- the heat-resistant casing 10 has a three-layer structure of a heat insulating layer made of ceramic fibers.
- Figure 1 shows the results of measuring the laser receiving position at the entrance of the coking chamber and the displacement (X) of the laser receiving position at the moving distance L from the entrance of the coking chamber, using a video camera that is the laser light receiving position recognition means 6.
- the distance from the center line of the coking chamber was about 30 mm to the left wall side, and the actual measurement to the right furnace wall based on the trajectory (DL) of the internal observation means in the coking chamber correct for each distance as (YL) actual measuring distance to the left furnace wall (YL), a distance from the longitudinal center line of the carbonization chamber to the furnace wall determined meth result (S L), 1
- Fig. 5 the curve plotted with “ ⁇ ” is based on the measured distance (YL), and the curve plotted with “ ⁇ ” is based on the trajectory (DL). represents the distance (SL) in which the.
- the displacement (XL), the trajectory (D), measured distance (Y L), and the center line Table 1 shows the measurement results of the distance (S L ) from the furnace to the furnace wall.
- the corrected distance to the left furnace wall (S L ) is the measured distance (YL) at the outlet of the coking chamber before specifying the position of the internal observation means in the coking chamber.
- the distance (S: absolute value) to the right furnace wall after correction is smaller than the measured distance (: absolute value) on the outlet side of the carbonization chamber. You can see that there is. In this way, the trajectory of the internal observation means for inspecting the coking chamber is specified, and the measured distance to each furnace wall is corrected based on the specified trajectory. The exact distance from the furnace wall to each furnace wall can be obtained.
- the measurement distance (Y ⁇ is measured at approximately 350 points over the entire length ( ⁇ ) of the carbonization chamber using a laser distance meter with a measurement cycle of 10 times ⁇ 1 second.
- the displacement ( XL ) is measured only at about 35 points over the entire length (T) of the coking chamber using a digital video camera having a measurement cycle of once / second. in 1 5 and Table 1, and the measurement point of the measurement point and the displacement (X L) measured Poi down bets showed only points of data that match.
- the measured distance of the measuring distance (YL) (Y L) correction displacement measurement Boi Ntoga match not measure the distance (X L) (Y ⁇ ), for convenience, they may be with the aid of the value of the trajectory (DL) when match.
- each distance at a position of about 7.5 m from the inlet of the carbonization chamber is as follows.
- the value obtained by subtracting the distance of the measured distance displacement line from the distance of the leveling displacement line is 9 mm, which is a positive value.Therefore, the distance to the furnace wall is short, and the furnace wall has only one force. It can be seen that is adhered. Also, the value obtained by subtracting the distance of the leveling displacement line from the distance of the design distance displacement line is 12 mm, which is a positive value. It can be diagnosed that the distance from the longitudinal center line to the furnace wall is shortened.
- Fig. 17 shows the absolute value of each displacement line of the furnace wall on the right side of the coking chamber. The distance at a position of about 7.5 m from the entrance of the coking chamber is Each is as follows.
- Measurement distance Displacement line distance 230 mm
- the value obtained by subtracting the distance of the measured distance displacement line from the distance of the leveled displacement line is -1 mm, which is a negative value, which indicates that a slight defect has occurred in the furnace wall. Also, the value obtained by subtracting the distance of the leveling displacement line from the distance of the design distance displacement line is 15 mm, which is a negative value. It can be diagnosed that the distance from the direction center line to the right furnace wall is long.
- Figure 18 shows the displacement line for the furnace width, which is the sum of the absolute values of the displacement lines for the furnace walls on the left and right sides of the coking chamber. For example, about 7.5 m from the entrance of the coking chamber Each distance at the position is as follows.
- Design distance Displacement line distance 4 4 8 m
- the value obtained by subtracting the distance of the measured distance displacement line from the distance of the leveling displacement line is 8 mm, and it is considered that force is attached to the furnace wall as a whole furnace width.
- the value obtained by subtracting the distance of the design distance displacement line and the distance of the leveling displacement line is 8 mm, and it is considered that the furnace width of the coking chamber has become narrow due to the movement of the furnace wall.
- the change in the furnace width due to the movement of the furnace wall itself is due to the fact that the left furnace wall has moved significantly toward the coking chamber, despite the fact that the right furnace wall has moved outside the coking chamber. It can be seen that the movement of the wall is offset and the entire furnace width is reduced.
- the furnace width measurement results were obtained in spite of the fact that the furnace walls on the left and right sides of the coking chamber were wide and narrow due to the movement of the furnace walls, and that the furnace wall was adhered and the furnace walls were missing. It can be seen that when the diagnosis is made based on the results, the results of the left and right furnace walls are offset and the state of the furnace wall cannot be diagnosed accurately.
- the displacement of the area by the furnace wall deficiency is one 1 0, 4 4 5 mm 2
- the displacement of the surface product by the force one carbon deposition 3 5, 9 a 2 1 mm 2
- the total area is 2 5, 4 7 6 mm 2
- the displacement of the area due to the adhesion of force was 27, 752 mm 2.
- the sum of the values is 19,804 mm 2 , and it can be diagnosed that the effect of carbon deposition on the right furnace wall is large.
- Table 3 shows the results obtained by calculating the area enclosed by the design distance displacement lines and the leveling displacement lines in Figs. 16 and 17.
- the displacement of the area due to narrowing of the furnace wall is a 1 5 8, 0 0 0 mm 2, the displacement of the area that by the wide band of the furnace wall 0 mm 2, and the total area is 158,000 mm 2 , and it can be diagnosed that the furnace wall of the entire left furnace wall is extremely narrow.
- the displacement of the area due to narrowing of the furnace wall is 3 4, 0 6 0 mm 2, the displacement of the area due to the wide range of furnace wall, - 4 2, 0 It is 60 mm 2 , and the total area is 180,000 mm 2 , and it can be diagnosed that the furnace wall is widened on the whole right side furnace wall.
- Table 4 shows the area (left side of the carbonization chamber) surrounded by the leveling displacement lines and measurement distance displacement lines in Figs. 16 and 19, and Table 5 shows the leveling displacements in Figs. 17 and 20.
- the area enclosed by the line and the measured distance displacement line (on the right side of the carbonization chamber) is summarized.
- the entire displacement of the furnace wall of the coke oven carbonization chamber is changed by displacement of the furnace wall surface such as carbon adhesion or deficit on the furnace wall, and the furnace wall itself is moved.
- the furnace wall surface such as carbon adhesion or deficit on the furnace wall
- the furnace wall itself is moved.
- the condition of the furnace wall of the coking chamber accurately and quantitatively by separating it from the displacement caused by deformation.
- the condition of each furnace wall on the left and right sides of the coking chamber can be diagnosed, and even when no abnormality is recognized in the entire furnace width, the condition of each furnace wall can be accurately determined. Diagnosis can be made.
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- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
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- General Engineering & Computer Science (AREA)
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Abstract
Description
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Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
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PCT/JP2003/004477 WO2004090071A1 (ja) | 2003-04-09 | 2003-04-09 | コークス炉炭化室の診断装置および診断方法 |
AU2003236007A AU2003236007A1 (en) | 2003-04-09 | 2003-04-09 | Device and method for diagnosing coke oven carbonizing chamber |
JP2004570562A JP4188919B2 (ja) | 2003-04-09 | 2003-04-09 | コークス炉炭化室の診断装置 |
CNB038011921A CN100352892C (zh) | 2003-04-09 | 2003-04-09 | 炼焦炉碳化室的诊断装置和诊断方法 |
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PCT/JP2003/004477 WO2004090071A1 (ja) | 2003-04-09 | 2003-04-09 | コークス炉炭化室の診断装置および診断方法 |
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JP4262281B2 (ja) * | 2007-02-22 | 2009-05-13 | 新日本製鐵株式会社 | コークス炉の壁面評価装置、コークス炉の壁面評価方法、及びコンピュータプログラム |
BRPI0806693B1 (pt) | 2007-02-22 | 2019-10-01 | Nippon Steel Corporation | Aparelho de avaliação da superfície da parede da câmara de coqueificação de forno de coque, aparelho de apoio ao reparo da superfície da parede de forno de coque, método de avaliação de superfície da parede lateral de forno de coque, método de apoio ao reparo da superfície da parede do forno de coque |
CN101059338B (zh) * | 2007-05-16 | 2010-08-25 | 赵跃 | 基于激光图像测量的煤焦炉炭化室位置检测方法 |
JP5676228B2 (ja) * | 2010-11-26 | 2015-02-25 | 関西熱化学株式会社 | コークス炉炉内監視方法および炉壁管理方法並びに監視システム |
WO2018002683A1 (en) * | 2016-06-30 | 2018-01-04 | Centre De Pyrolyse Du Charbon De Marienau | Device for measuring a shape of a wall portion of an oven, such as a coke oven |
CN114854435B (zh) * | 2022-06-10 | 2023-05-30 | 山西深蓝海拓智能机电设备有限公司 | 一种炼焦作业过程中校验炉门是否准确对位的方法和装置 |
Citations (4)
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JPH03105195A (ja) * | 1989-09-18 | 1991-05-01 | Kawasaki Steel Corp | コークス炉炭化室の内壁観察方法及び装置 |
JP2002005643A (ja) * | 2000-06-22 | 2002-01-09 | Kansai Coke & Chem Co Ltd | 稼動中のコークス炉炭化室炉壁の変位測定方法 |
JP2002047491A (ja) * | 2000-08-02 | 2002-02-12 | Kansai Coke & Chem Co Ltd | コークス炉の炉壁診断方法および診断装置 |
JP2003183661A (ja) * | 2001-10-09 | 2003-07-03 | Kansai Coke & Chem Co Ltd | コークス炉炭化室の診断方法 |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
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JPH03269209A (ja) * | 1990-03-19 | 1991-11-29 | Kawasaki Steel Corp | コークス炉炭化室の側壁面プロフィルの測定方法および装置 |
JPH10279946A (ja) * | 1997-04-08 | 1998-10-20 | Nippon Steel Corp | コークス炉炭化室の炉壁面プロフィール測定方法 |
JP2001011465A (ja) * | 1999-06-30 | 2001-01-16 | Sumitomo Metal Ind Ltd | コークス炉炭化室の内壁観測装置 |
JP2002080852A (ja) * | 2000-06-23 | 2002-03-22 | Nkk Corp | コークス炉炉壁形状計測方法 |
JP3965032B2 (ja) * | 2000-11-14 | 2007-08-22 | 新日本製鐵株式会社 | コークス炉炭化室炉幅測定装置 |
JP2008025643A (ja) * | 2006-07-19 | 2008-02-07 | Advics:Kk | 回転伝達部材およびその製造方法 |
-
2003
- 2003-04-09 WO PCT/JP2003/004477 patent/WO2004090071A1/ja active Application Filing
- 2003-04-09 JP JP2004570562A patent/JP4188919B2/ja not_active Expired - Fee Related
- 2003-04-09 AU AU2003236007A patent/AU2003236007A1/en not_active Abandoned
- 2003-04-09 CN CNB038011921A patent/CN100352892C/zh not_active Expired - Lifetime
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
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JPH03105195A (ja) * | 1989-09-18 | 1991-05-01 | Kawasaki Steel Corp | コークス炉炭化室の内壁観察方法及び装置 |
JP2002005643A (ja) * | 2000-06-22 | 2002-01-09 | Kansai Coke & Chem Co Ltd | 稼動中のコークス炉炭化室炉壁の変位測定方法 |
JP2002047491A (ja) * | 2000-08-02 | 2002-02-12 | Kansai Coke & Chem Co Ltd | コークス炉の炉壁診断方法および診断装置 |
JP2003183661A (ja) * | 2001-10-09 | 2003-07-03 | Kansai Coke & Chem Co Ltd | コークス炉炭化室の診断方法 |
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JP4188919B2 (ja) | 2008-12-03 |
AU2003236007A1 (en) | 2004-11-01 |
CN100352892C (zh) | 2007-12-05 |
JPWO2004090071A1 (ja) | 2006-07-06 |
CN1703485A (zh) | 2005-11-30 |
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