WO2002040615A1 - Dispositif et procede permettant de mesurer la largeur d'un four - Google Patents
Dispositif et procede permettant de mesurer la largeur d'un four Download PDFInfo
- Publication number
- WO2002040615A1 WO2002040615A1 PCT/JP2001/009966 JP0109966W WO0240615A1 WO 2002040615 A1 WO2002040615 A1 WO 2002040615A1 JP 0109966 W JP0109966 W JP 0109966W WO 0240615 A1 WO0240615 A1 WO 0240615A1
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- WO
- WIPO (PCT)
- Prior art keywords
- furnace
- furnace width
- measuring device
- measurement
- width measuring
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims description 14
- 238000005259 measurement Methods 0.000 claims abstract description 135
- 239000007788 liquid Substances 0.000 claims abstract description 33
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 22
- 239000011810 insulating material Substances 0.000 claims abstract description 19
- 238000007599 discharging Methods 0.000 claims abstract description 7
- 230000005540 biological transmission Effects 0.000 claims description 33
- 239000000571 coke Substances 0.000 claims description 29
- 238000003763 carbonization Methods 0.000 claims description 18
- 238000010521 absorption reaction Methods 0.000 claims description 10
- 238000009434 installation Methods 0.000 claims description 7
- 239000000498 cooling water Substances 0.000 abstract description 16
- 238000010000 carbonizing Methods 0.000 abstract 1
- 238000001125 extrusion Methods 0.000 description 15
- 238000003780 insertion Methods 0.000 description 11
- 230000037431 insertion Effects 0.000 description 11
- 238000004939 coking Methods 0.000 description 10
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 9
- 239000011358 absorbing material Substances 0.000 description 6
- 239000011449 brick Substances 0.000 description 6
- 230000003287 optical effect Effects 0.000 description 6
- 239000011248 coating agent Substances 0.000 description 5
- 238000000576 coating method Methods 0.000 description 5
- 230000005856 abnormality Effects 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 3
- 239000000919 ceramic Substances 0.000 description 3
- 230000006866 deterioration Effects 0.000 description 3
- 238000000605 extraction Methods 0.000 description 3
- 239000011521 glass Substances 0.000 description 3
- 239000000377 silicon dioxide Substances 0.000 description 3
- 239000011094 fiberboard Substances 0.000 description 2
- 238000011049 filling Methods 0.000 description 2
- 230000008676 import Effects 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 238000000691 measurement method Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 238000001465 metallisation Methods 0.000 description 2
- 239000011819 refractory material Substances 0.000 description 2
- 230000001174 ascending effect Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 239000000378 calcium silicate Substances 0.000 description 1
- 229910052918 calcium silicate Inorganic materials 0.000 description 1
- OYACROKNLOSFPA-UHFFFAOYSA-N calcium;dioxido(oxo)silane Chemical compound [Ca+2].[O-][Si]([O-])=O OYACROKNLOSFPA-UHFFFAOYSA-N 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000007405 data analysis Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000007888 film coating Substances 0.000 description 1
- 238000009501 film coating Methods 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- 238000007726 management method Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000012811 non-conductive material Substances 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J6/00—Heat treatments such as Calcining; Fusing ; Pyrolysis
- B01J6/001—Calcining
-
- 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
-
- 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
- C10B41/02—Safety devices, e.g. signalling or controlling devices for use in the discharge of coke for discharging coke
-
- 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
- C10B45/00—Other details
-
- 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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/02—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness
- G01B11/026—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness by measuring distance between sensor and object
Definitions
- the present invention relates to a furnace width measuring device for quickly and easily measuring a furnace width in a high-temperature furnace chamber such as a coke oven carbonization chamber.
- the furnace walls that make up the furnace room are made of refractory, and it is necessary to accurately grasp the state of deterioration of the refractory.
- the coking chamber of a coke oven is operated continuously under severe conditions for a long period of time, usually more than 20 years, and the refractory bricks constituting the coking chamber are subject to thermal, chemical and mechanical factors. Degrades gradually. As a result, the blockage of the service due to the deterioration of the refractory brick occurs, or the refractory brick falls off. If an accident such as the refractory brick falls occurs, it is difficult to repair it and the operation will be significantly affected. Therefore, it is extremely important to keep track of the condition of the refractory bricks that make up the furnace wall, especially in the coking chamber, in coke oven operation management.
- the distance between the two furnace walls increases if the furnace wall refractories are worn away. Therefore, by measuring the distance between the furnace walls, it is possible to estimate the state of wear of the refractories constituting the furnace walls.
- the distance meter is accurately placed at a fixed position in the furnace. It is necessary to.
- the furnace wall as described above In the method of measuring the distance between the furnace walls, there is no significant error in the measured value of the distance between the furnace walls even if (1) the furnace wall measuring device deflects. Therefore, in the method of measuring the distance between furnace walls, it is not necessary to strictly align the measuring device.
- the furnace width is measured by attaching a furnace width measuring device to the extrusion ram of a coke oven extruder. be able to.
- a furnace width measuring device for example, in Japanese Patent Application Laid-Open No. 62-293112, one or more pairs of non-contact type distance meters directed to respective furnace walls are provided on a ram or the like of a coat extruder. It is described that it measures the width of the carbonization chamber from the total distance by measuring the left and right walls simultaneously from the installation position. By moving the extruder horizontally, the width of the furnace wall can be measured continuously.
- Japanese Unexamined Utility Model Publication No. 2-13151 and Japanese Unexamined Patent Publication No. Sho 60-144384 disclose methods of similarly measuring the interval between furnace walls using a contact-type distance meter.
- the furnace width measurement in the coke oven is performed during the operation of the coke oven in a short time after extruding the manufactured coke and before charging the next raw material. Therefore, it is natural that the inside of the furnace to be measured is at a high temperature, and the furnace width measurement unit of the furnace width measurement device ⁇ ⁇ is an electronic device and cannot withstand a high temperature environment. It is necessary to take measures to prevent temperature rise.
- the distance meter is housed in a water-cooled jacket, and a cooling water pipe for supplying, circulating, and discharging cooling water is installed in the water-cooled jacket.
- a signal cable for guiding the measurement result of the distance meter to the outside of the furnace is arranged in the cooling water pipe, and the signal cable is protected from a high-temperature environment.
- Furnace width measuring device is pushed
- the cooling water pipe is taken up by a winding device because it moves with the horizontal movement of the delivery ram, and the cooling water pipe is sent out with the movement of the furnace width measuring device.
- furnace width measurement unit The entire furnace width measurement unit is covered with heat insulating material to form a furnace width measurement device.
- the furnace width measurement device is inserted into the furnace for a very short time to measure the furnace width, and the temperature of the furnace width measurement unit itself is reduced.
- a furnace width measuring device is known which is taken out of a furnace before ascending. Since there is no need to provide cooling water piping, the equipment is compact and can be easily installed in a coke oven extruder. Since there is no cooling water pipe, the signal cable cannot be guided outside the furnace.
- the furnace width measurement data is stored in a data recording device in the furnace width measurement unit, and the furnace width measurement device is extracted outside the furnace. And then retrieve the data.
- a power supply for operating the electronic equipment is also provided in the furnace width measurement unit.
- the furnace width measurement unit is not actively cooled, but is simply shut off by a heat insulating material. Therefore, the apparatus can stay in a high-temperature furnace such as a coke oven for at most 3 hours. Minutes. Even inserting the extruder of the coke oven into the furnace and making one round trip in the furnace usually requires about 3 minutes. Therefore, if the time allowed to stay in the furnace is 3 minutes at the maximum, there is little extra time, and if it takes time for extrusion, electronic equipment such as a distance meter may be damaged. In addition, each time the furnace was measured, it was necessary to allow the heat stored in the heat insulating material to cool down over a long period of time.
- the present invention rapidly and easily measures the furnace width in a high-temperature furnace chamber such as a coke oven carbonization chamber, does not require installation of a cooling water pipe, and performs measurement by inserting a measuring device into the furnace. It is an object of the present invention to provide a furnace width measuring device capable of withstanding high temperatures within a time required for extraction. That is, the gist of the present invention is as follows.
- a furnace width measuring device for measuring a width between opposed furnace walls, a measuring unit 2 for measuring a furnace width includes a furnace width measuring device 8 and a power supply device 10, and a measuring unit 2 is a furnace width measuring apparatus characterized in that it is housed in a heat absorbing box 3 having heat absorbing ability, and the outside of the heat absorbing box 3 is covered with a heat insulating material 4.
- the furnace width measuring device 8 is a pair of laser distance meters, each of which measures the distance to each furnace wall 12.
- the furnace width measuring device according to any one of (1) to (4).
- the laser range finder further includes a timer, and starts irradiation of laser light from a point in time when a set value corresponding to a preset installation time of the furnace width measuring device is reached.
- the furnace width measuring device according to the above.
- the measurement unit 2 further includes a wireless transmission transmitter 18 for transmitting the furnace width measurement data to the external data recording device 22, wherein the measurement unit 2 has any of the above (1) to (7).
- Furnace width measuring device Furnace width measuring device.
- the external data recording device 22 records the current measurement position data 35 in the horizontal direction together with the furnace width measurement data.
- the furnace width measuring device according to (8).
- the measurement unit 2 according to the above (10) or (11), further comprising a wireless transmission receiver for receiving data on a measurement start time and a measurement position from outside. measuring device.
- the furnace width measuring device 1 is mounted on a ram 14 or a ram beam of a coke oven extruder 13 and the furnace width is measured while horizontally moving the extruder. Furnace width measuring device.
- the external data recording device 22 or the data recording device 9 records the distance between each laser range finder and the furnace wall, and the furnace width measurement according to any one of (5) to (13) above. apparatus.
- a heat absorbing box 3 is arranged between the heat insulating material 4 and the internal measuring unit 2.
- the heat absorbing box 3 itself has a heat absorbing capacity, and the heat that has entered inside through the outermost heat insulating material 4 is absorbed by the heat absorbing box 3 and can delay the temperature rise of the measurement unit 2 inside the heat absorbing box. .
- the furnace width measuring device 1 can stay in the high-temperature furnace for 5 minutes, so that, for example, the furnace width measuring device 1 is attached to the extrusion ram 14 of the coater furnace extruder 13 to measure the furnace width. In doing so, the measurement can be performed with sufficient time. Further, since the furnace width measuring apparatus of the present invention does not require the installation of a cooling water pipe or a signal cable, it is extremely easy to install and remove it from the extrusion ram 14 or the like. BRIEF DESCRIPTION OF THE FIGURES
- FIG. 1 is a cross-sectional plan view showing a state where a furnace width measuring apparatus of the present invention is arranged in a furnace chamber.
- FIG. 2 is a cross-sectional view showing a state where the furnace width measuring apparatus of the present invention is mounted on an extrusion ram and inserted into a coke oven carbonization chamber.
- FIG. 3 is a cross-sectional plan view showing a state where the furnace width measuring apparatus of the present invention is arranged in a furnace chamber.
- FIG. 4 is a cross-sectional view showing a state where the furnace width measuring device of the present invention is mounted on an extrusion ram and inserted into a coke oven carbonization chamber.
- FIG. 5 is a side sectional view of the heat absorbing box of the present invention.
- FIG. 6 is a conceptual diagram showing a device connection status of the present invention having a wireless transmission transceiver.
- a heat absorbing material having heat absorbing ability is used for the heat absorbing box 3. It is necessary to use a heat-absorbing material that has a large heat capacity per weight and per volume. Although it is possible to use a metal material as the heat absorbing material, it is more preferable that the heat absorbing box 3 has a jacket structure for filling the liquid 7 and the liquid 7 filled in the jacket as the heat absorbing material. preferable.
- the heat absorbing box 3 is composed of an outer box 5 and an inner box 6, and a space between the outer box 5 and the inner box 6 is a jacket for filling the liquid 7.
- Liquids can generally be selected to have a large heat capacity per weight and volume. It is preferable to use water as the most easily industrially available and most suitable liquid as the heat absorbing material. Since water has a large heat capacity, it can delay the temperature rise inside the heat absorbing box. Furthermore, when the temperature of the water reaches 100 ° C, a large amount of heat of vaporization is taken off by boiling, so that the temperature inside the heat absorbing box becomes lower.
- the opening can be provided also as the cooling water inlet 24.
- the liquid is supplied and discharged during the furnace width measurement in the furnace. It is characterized by the fact that the pipe for taking out is not connected.
- the furnace width measuring device of the present invention In the furnace width measurement of the coke oven carbonization chamber by the furnace width measuring device of the present invention, for example, when the furnace width measuring device of the present invention is mounted on a coke extruder and the measurement is performed, the extruder moves on a rail. The process of pushing out coke in the coking chamber where the carbonization has been completed is continuously repeated one after another at intervals of 5 to 10 minutes. During this operation, the furnace width of many coking chambers will be measured. Since the temperature of the liquid in the heat absorption box has risen by one insertion of the carbonization chamber, the liquid in the heat absorption box can be measured as soon as it is inserted into the next carbonization chamber. The temperature of the furnace gradually rises, and the dwell time in the furnace is shortened. As shown in FIG.
- a discharge port 23 for discharging the internal liquid is provided at the lower part of the heat absorbing box 3 of the present invention, and the internal liquid 7 whose temperature has increased each time the in-furnace measurement is completed is discharged.
- the temperature of liquid 7 can be prevented from rising.
- the temperature of the endothermic box itself can be reduced by continuing the discharge from the outlet 23 while supplying the cooled liquid from the inlet 24 when a new liquid is introduced. As a result, a sufficient in-furnace stay time can be ensured each time.
- the heat insulating material 4 that covers the outside of the heat absorbing box 3 a ceramic fiber port, a calcium silicate board, or the like can be used.
- the furnace width of a coke oven is usually about 400 mm, and the oven width measuring device of the present invention needs to be dimensioned so that it can be stored in this space.
- the jacket that stores the water has a width of 40 mn on the left and right sides of the furnace in the furnace width direction. ⁇ 60mm.
- a ceramic fiber board is used, and the thickness of the heat insulating material 4 is 40mn! Up to about 60 marauders.
- the internal space for storing the measuring unit 2 is about L 420 mm XW 160 mm XH 310 mm.
- the temperature of the internal space accommodating the measurement unit changes with every elapsed time after the insertion. 25 minutes after 3 minutes, 40 degrees after 5 minutes, and 55 degrees after 7 minutes. Since the normal operating temperature upper limit of the measurement unit is 50 ° C, it is possible to stay in a high-temperature furnace for 5 minutes.
- the measurement unit 2 housed in the furnace width measuring device 1 has a furnace width measuring device 8, a power supply device 10, and a data recording device 9 as required.
- a non-contact distance meter As the furnace width measuring instrument 8, it is preferable to use a non-contact distance meter.
- a non-contact range finder a laser range finder, a microwave range finder, or the like can be used.
- a laser range finder When using a laser range finder, at least one pair of laser range finder is prepared, and each laser range finder is directed to the corresponding furnace wall, and the distance from each laser range finder to each furnace wall is measured.
- the furnace width can be calculated by adding the measured distances from the two laser rangefinders.
- a non-contact laser range finder or the like When a non-contact laser range finder or the like is used as the furnace width measuring device 8, heat is absorbed by irradiating the laser beam from the laser range finder to the furnace wall 12 and guiding the reflected light from the furnace wall 12 to the range finder.
- the box 3 and the insulation 4 around its periphery have windows 16 on both sides.
- the window 16 is provided with heat-resistant glass such as quartz glass.
- the heat-resistant glass preferably has a function of reflecting external radiant heat by means such as metal deposition.
- a narrow band interference filter 37 is further provided in front of the laser receiving window of the laser range finder as shown in FIG.
- the narrow-band interference filter 37 is a half-width 10 with respect to the center wavelength.
- a narrow-band interference filter with the center wavelength at the laser wavelength used in laser rangefinders the measurement accuracy of the laser rangefinder can be ensured by forcing the wavelength range that disturbs the measurement accuracy. it can.
- the laser range finder 8 Since the laser range finder 8 has a certain length in the direction of the optical axis, and the furnace width of a coke oven or the like is very narrow, it is difficult to arrange two laser distance meters coaxially in the furnace width direction. May be. As shown in Fig. 3, the laser rangefinder 8 is arranged in the longitudinal direction of the furnace, and the optical axis 33 is changed in the furnace width direction using the reflection by the mirror 32, so that the inside of the furnace having a narrow furnace width is obtained. Measurement can be enabled.
- the furnace width measuring device of the present invention cannot route the signal cable outside the furnace, the data measured in the furnace is recorded in the data recording device 9 arranged in the measuring unit, and the measurement is completed. After extracting the furnace width measuring device 1 outside the furnace, the recorded data is referred to.
- the data recording device 9 can be arbitrarily selected from a magnetic storage device such as a magnetic disk, a semiconductor storage device such as an LSI card, an optical storage device, and a magneto-optical storage device.
- the measuring unit 2 records, for example, the current time and the furnace width measurement data in the data recording device 9 correspondingly, while outside the furnace, the current time and the current horizontal position of the extruder are recorded. By recording correspondingly and combining the two data as parameters after the measurement is completed, it is possible to correspond the furnace width measurement data for each horizontal position. When the furnace width measuring device is still outside the furnace, the measured furnace width is very large.
- the furnace width measuring device moves horizontally and enters the furnace, the furnace width measurement value suddenly changes to a value approximately equal to the actual furnace width, so the furnace width measuring device itself recognizes the start time of insertion into the furnace. can do. Therefore, when the moving speed of the extruder 13 is constant, the furnace width measuring device uses the above-mentioned furnace insertion time recognized by itself, and the data after the furnace insertion time is regarded as a constant moving speed, and the furnace speed is made constant. It is also possible to correspond to each position.
- a wireless transmission transmitter 18 is arranged in the measurement unit instead of the data recording device 9, and the measurement data is transmitted to the outside of the furnace and transmitted to the external data recording device 22 outside the furnace. Data can also be recorded.
- wireless transmission wireless transmission using electromagnetic waves or wireless transmission using light such as visible light or infrared light can be used.
- a transmission window 17 is provided on the wall of the heat absorption box facing the outside of the furnace.
- a metal film coating is not used to prevent the penetration of radiant heat from the outside, and non-conductive materials such as silica coating are used. Conductive material coating.
- digital wireless transceivers that transmit digital signals by radio waves for wireless transmission can be used. Since the distance signal of the analog aperture is output from the laser range finder 8, this signal is converted into a digital signal by the AZD converter 26, and this digital signal is transmitted by the digital radio transmitter 27, and is output from the furnace. Received by the digital wireless receiver 28. The received digital signal can be converted into an analog signal by a DZA converter 29 and output to a recorder such as a data display 31, or recorded as a digital signal on a recorder such as a recording computer 30. it can.
- the furnace width measurement data is transmitted from the measurement unit to the external wireless transmission receiver 21, and the data is recorded in the external data recording device 22.
- the furnace width measurement data and the current measurement position data 35 in the furnace horizontal direction can be simultaneously recorded in the external data recording device 32. Since the external data recording device 22 is located outside the furnace, the measured current position data 35 of the furnace width measuring device can be calculated and taken in from the current position data of the extruder 13 equipped with the furnace width measuring device. is there.
- the external data recording device 22 makes it possible to associate the measurement position in the horizontal direction with the furnace width measurement data in real time, and immediately identifies damaged parts and repaired parts in the furnace during measurement. can do.
- the wireless transmission transmitter 18 transmits the furnace width measurement data to the external data recording device 22, it is also possible to transmit data obtained by converting distance data measured by a pair of laser distance meters into furnace width. However, it is of course possible to transmit the distance data measured by each laser range finder as it is and calculate the furnace width on the external data recording device 22 side.
- thermometer 36 for measuring the temperature of the measurement unit 2 and the liquid temperature in the heat absorption box is further installed in the measurement unit as shown in FIG.
- the measured temperature can be transmitted outside the furnace by the wireless transmission transmitter 18.
- the temperature of the furnace width measuring device can be grasped at the present time outside the furnace. Damage to the furnace width measurement device due to abnormally high temperatures can be prevented.
- a data recording device 9 and a wireless transmission receiver are installed in the measurement unit, and the measurement unit is externally input to the measurement unit at the time of insertion of the measurement unit into the furnace and in the horizontal direction in the furnace.
- Measurement current position data 35 always It is also possible to transmit the data wirelessly and simultaneously record the furnace width measurement data and the current measurement position data 35 in the horizontal direction of the furnace in the data recording device 9 in the measurement unit.
- a transceiver having both functions of transmission and reception may be used.
- the measuring unit 2 Since the furnace width measuring device 1 of the present invention cannot supply operating power from outside during the measurement, the measuring unit 2 has the power supply device 10.
- the furnace width measuring device 8, the data recording device 9, and the wireless transmission transmitter 18 are operated by the power supplied from the power supply device 10.
- the power supply device 10 a dry battery, a rechargeable storage battery, or the like can be used.
- a non-rechargeable battery is used as the power supply 10
- Even when a chargeable power source is used as the power supply device 10 if the charging cable connection plug is located inside the heat absorbing box, it is necessary to open the heat absorbing box each time charging is performed.
- Charging can be performed without opening the heat absorbing box, which can improve workability.
- the charging cable connection plug 25 may be covered with a heat insulating material cover 34 at the time of introduction into the furnace, and the charge cable may be connected by removing only the heat insulating material cover 34 at the time of charging.
- the furnace width measuring device 1 is mounted on the extruder 13 at the fixed height of the extrusion ram 14 of the extruder 13, and the furnace width is measured while the extruder 13 is moved horizontally, and the measured values are used as data. If the recording is performed by the recording device 9, the furnace width at a certain height in the coke oven can be continuously measured. Since the furnace width measuring apparatus 1 of the present invention is compact and lightweight and does not require installation of cooling pipes or the like, the height attached to the extrusion ram 14 is arbitrary. By changing the mounting position at each predetermined height and performing measurements, it is possible to obtain furnace width measurement data for the entire furnace height.
- the furnace width measuring device of the present invention is attached to the furnace measuring device, and the extruder is attached to the furnace. Furnace width measurements can be made in the same way.
- furnace width measurement which measures the width between opposing furnace walls in the furnace
- measurement must be performed without accurately determining the position of the furnace width measuring device in the furnace width direction in the furnace.
- the furnace width measuring device 8 is a pair of laser distance meters, and each laser distance meter measures the distance to each furnace wall 12
- the position of the measuring device in the furnace width direction is determined. If it is accurately determined, instead of calculating and using the furnace width from a pair of laser rangefinder measurement results, the surface of each of the left and right furnace walls is directly obtained from the distance measurement data to the furnace wall by each laser rangefinder. It is more advantageous because the situation can be evaluated.
- the present invention can be applied to such a case where the furnace wall surface is evaluated. That is, as described in the above (16) of the present invention, the external data recording device 22 or the data recording device 9 records the distance between each laser distance meter and the furnace wall in place of the furnace width measurement value. However, it is possible to individually evaluate the state of wear of the opposing furnace walls and to formulate an optimum furnace wall repair plan for each furnace wall.
- the furnace width is measured after removing the carbon adhering to the furnace wall 12. Adhered carbon is removed by means such as burning off. On the other hand, the furnace width was measured before and after removing the adhered carbon, and a comparison of the two was made. You can know the thickness.
- the furnace width measuring apparatus of the present invention makes it possible to grasp significant deterioration of the furnace wall.
- the furnace width measuring device shown in Fig. 1 was used to measure the furnace width of the coke oven carbonization chamber.
- the outer dimensions of the furnace width measuring device 1 are 550 mm in height, 360 mm in width, and 620 mm in length, and the total weight is about 50 kg.
- a ceramic fiber board was used as the outer heat insulating material 4, and the thickness of the heat insulating material 4 was set to 50 mm.
- a heat absorbing box 3 having a jacket structure including an outer box 5 and an inner box 6 made of stainless steel is arranged inside the heat insulating material 4.
- the jacket was filled with a total of 25 liters of water7.
- the thickness of the layer of water 7 is 45 mm.
- a pair of laser rangefinders was placed as a furnace width measuring device 8 in the measurement unit 2 inside the heat absorbing box 3.
- Each laser range finder (8a, 8b) measures the distance to the left and right furnace walls 12.
- windows 16 are placed on the left and right sides of the heat absorbing box 3 and the heat insulating material 4 facing the furnace wall, and the window 16 is quartz glass with metal deposition. Is embedded.
- a small personal computer was placed in the measurement unit 2 as the data recording device 9.
- a rechargeable storage battery is provided as the power supply device 10 and serves as a power supply for the laser distance meter 8, the data recording device 9, and a control device that controls them.
- the furnace width measuring device 1 is attached to the front or rear of the extrusion ram of the extruder 13.
- the supporting device 15 was attached to the front surface of the ram 14. Since the total weight of the furnace width measuring device 1 is relatively light, about 50 kg, and there is no need to arrange cooling water piping and signal cables, it can be easily installed at any position in the height direction of the extrusion ram 14. Is possible.
- the mounting positions of the furnace width measuring device 1 were set at four locations in the height direction of the extrusion ram, and the furnace width measurement was performed sequentially at each height to obtain furnace width measurement data for the entire furnace wall of the carbonization chamber. could be collected.
- a timer is installed to prevent laser light irradiation during installation. Since the laser irradiation is started after the timer is up, the extruder 13 starts to be inserted into the furnace at a predetermined speed. Since the furnace width measurement data has a value substantially equal to the predetermined furnace width at the same time when the laser range finder is inserted into the furnace, the furnace insertion timing can be detected. Thereafter, the extruder 13 is horizontally moved at a constant speed, the furnace width is measured over the entire length of the furnace wall 12, and the furnace width data can be recorded in a data recording device.
- the furnace width measurement device 1 can stay in the furnace for 5 minutes, so the extruder 13 is immediately extracted from the furnace after the measurement is completed. Normally, it takes about 3 minutes from the start of insertion to the completion of extraction.
- the inside of the measuring unit was 15 ° C and the water temperature was 15 ° C at the start of insertion.
- the inside of the measurement unit was 25 ° C and the temperature of water was 30 ° C.
- the normal upper temperature limit of the measurement unit is 50 ° C, so the temperature rise during the measurement was within the allowable range.
- the furnace width measuring device 1 was taken out from the extrusion ram 14, and the data recorded in the internal data recording device 9 was read out to an external analyzer. Since the data recording device 9 records the furnace width measured value at the start time of the import and at each time after the start of the import, the data is extruded. By taking into account the actual insertion speed of the ram, the actual furnace width at each position in the furnace horizontal direction was obtained.
- Furnace wall wear was measured by measuring the furnace width at three levels in the height direction for the furnace wall brick wear parts that were visually confirmed, and comparing the furnace width in a healthy state with the furnace width results. It is possible to draw a contour line of the wear amount of the part. This made it possible to formulate a repair plan such as the repair method and repair time for the repair of worn parts, and improved repair efficiency.
- Example 1 For the same purpose, the furnace width measuring device shown in FIGS. 3 to 6 was used.
- the wireless transmission transmitter 18 is arranged instead of the data recording device 9 in the measurement unit, and the wireless transmission receiver 21 and the external data recording device 22 are arranged outside the furnace.
- the laser rangefinder 8 is arranged in the longitudinal direction of the carbonization chamber, the optical axis 33 is bent 90 ° by the mirror 32, and a narrow-band interference filter 37 is arranged in front of the laser rangefinder 8 as an optical filter. Is a point.
- the other common parts are the same as in the first embodiment, and thus detailed description is omitted.
- Wireless transmission uses digital signal radio waves for wireless transmission.
- the output of the two laser rangefinders 8 and the output of the thermometer 36 that measures the temperature in the measurement unit are converted to digital signals by the A / D converter 26, and the digital signals are transmitted wirelessly via the RS-232C interface.
- the digital signal wireless transmitter 27 functions as the wireless transmission transmitter 18, and sends the wireless transmission signal 19 to the wireless transmission receiver 21 outside the furnace.
- a window 17 is provided in the portion of the endothermic box 3 through which radio waves pass, and silica glass coated with silica is arranged. Silica coating The radiant heat from the furnace is cut off by coating, and it is not a metal coating, so it does not hinder the propagation of radio waves.
- a digital signal radio receiver 28 is arranged as a wireless transmission receiver 21, and a recording computer 30 and a data display 31 are arranged as an external data recording device 22.
- the digital signal received by the digital signal wireless receiver 28 is transmitted to the DZA converter 29 and the recording computer 30 via the RS-232C interface.
- the data sent to the recording computer 30 is recorded in the computer, and the analog signal output from the D / A converter 29 is sent to the data display 31 to display the furnace width data measured in real time. Since the measured current position data 35 obtained based on the current position data of the extrusion ram 14 has also been sent to the external data recording device 22, this data is also sent to the recording computer 30 and the data display 31.
- the actual current position 35 of the width measuring device is displayed on the horizontal axis, and the furnace width data is displayed on the vertical axis, and the location where the furnace width abnormality has occurred can be specified.
- Example 1 In the case of Example 1, by opening a part of the heat absorption box 3 after the measurement is completed, a data reading cable is attached to the data recording device 9 in the measurement unit and the data is read out to an external analyzer. Or it was necessary to take out the data recording medium from the data recording device 9, but in the case of Example 2, since the data was sequentially transmitted to the external data recording device 22 during the measurement, the heat absorbing box 3 was removed after the measurement was completed. There was no need to open it, greatly improving the workability of the measurement. In addition, during the measurement, the furnace width abnormality in the furnace can be caught in real time, and the location where the furnace width abnormality has occurred can be accurately identified.Therefore, a repair plan for the coking chamber should be made without delay. Was completed.
- the outlet 23 at the bottom of the heat absorbing box was opened, and the cooling water 7 with the increased temperature was discharged, and at the same time, water at room temperature was injected from the inlet 24 at the top.
- the outlet 23 at the bottom of the heat absorbing box was closed, and water 7 was filled in the heat absorbing box. In this way, the temperature of the heat absorption box 3 and the water 7 in the heat absorption box were sufficiently lowered each time, and the next measurement was performed. Measurement time was secured.
- the rechargeable storage battery used as the power supply device 10 in the measurement unit has a capacity capable of continuously measuring the furnace width of the five carbonization chambers. Charging can be performed by connecting the charging cable to the charging cable connection plug 25 placed outside the heat absorbing box, so there is no need to open the heat absorbing box for charging, and good work Was able to charge under the gender
- the measuring unit is housed in a heat absorbing box having a heat absorbing ability, and the outside of the heat absorbing box is covered with a heat insulating material.
- the temperature of the measurement unit can be kept below a certain temperature even after a long stay. Therefore, it is possible to take a sufficient time to measure the furnace width in the furnace.
- the furnace width measuring device of the present invention does not require cooling water piping or signal cable wiring, it can be quickly and easily attached to and removed from a furnace insertion / movement device such as an extrusion ram. Become.
- the furnace width measuring device having the wireless transmission transmitter of the present invention has good workability because it is not necessary to open the heat absorption box to extract measurement data after measurement, and the furnace width measurement position outside the furnace is good. Since the data processing can be performed together with the above, the location where the furnace width abnormality has occurred can be specified accurately, Since measurement data analysis can be performed during furnace width measurement, the results can be promptly reflected in the next function.
- the heat absorbing box has a liquid outlet, continuous measurement can be performed for a long time without increasing the temperature of the measuring device, and a charging cable connection plug is provided. In addition, measurement can be performed continuously without opening the heat absorbing box, thereby improving workability.
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Physics & Mathematics (AREA)
- Length Measuring Devices By Optical Means (AREA)
- Coke Industry (AREA)
- Length Measuring Devices With Unspecified Measuring Means (AREA)
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP01982784A EP1340799A4 (en) | 2000-11-14 | 2001-11-14 | METHOD AND DEVICE FOR MEASURING THE WIDTH OF AN OVEN |
BRPI0107629-9B1A BR0107629B1 (pt) | 2000-11-14 | 2001-11-14 | aparelho e mÉtodo para a mediÇço da largura de uma cÂmara de forno |
HK03104526.2A HK1052366B (zh) | 2000-11-14 | 2003-06-24 | 用於測量爐室寬度的裝置和方法 |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2000-347150 | 2000-11-14 | ||
JP2000347150 | 2000-11-14 | ||
JP2001-209046 | 2001-07-10 | ||
JP2001209046A JP3965032B2 (ja) | 2000-11-14 | 2001-07-10 | コークス炉炭化室炉幅測定装置 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2002040615A1 true WO2002040615A1 (fr) | 2002-05-23 |
Family
ID=26603969
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2001/009966 WO2002040615A1 (fr) | 2000-11-14 | 2001-11-14 | Dispositif et procede permettant de mesurer la largeur d'un four |
Country Status (8)
Country | Link |
---|---|
EP (1) | EP1340799A4 (ja) |
JP (1) | JP3965032B2 (ja) |
KR (1) | KR100497765B1 (ja) |
CN (1) | CN1218017C (ja) |
BR (1) | BR0107629B1 (ja) |
HK (1) | HK1052366B (ja) |
TW (1) | TW544463B (ja) |
WO (1) | WO2002040615A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2003066775A1 (en) * | 2002-01-09 | 2003-08-14 | Nippon Steel Corporation | Furnace wall observation device and furnace wall shape measuring device |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4220800B2 (ja) * | 2003-02-13 | 2009-02-04 | 関西熱化学株式会社 | コークス炉炭化室の検査装置を用いたコークス炉炭化室を検査する内部観察手段の軌跡の特定方法およびコークス炉炭化室の検査方法 |
WO2004090071A1 (ja) * | 2003-04-09 | 2004-10-21 | The Kansai Coke And Chemicals Co., Ltd. | コークス炉炭化室の診断装置および診断方法 |
JP4711856B2 (ja) | 2006-02-28 | 2011-06-29 | 関西熱化学株式会社 | 炉幅測定装置およびそれを備えた押出ラム |
CA2666059C (en) * | 2007-02-22 | 2013-09-24 | Nippon Steel Corporation | Coke oven wall surface evaluation and repair supporting apparatus and method |
JP6227220B2 (ja) * | 2010-12-27 | 2017-11-08 | Jfeスチール株式会社 | 炉壁形状測定装置、炉壁形状測定システム、および炉壁形状測定方法 |
AU2012380733B2 (en) * | 2012-05-25 | 2016-07-21 | Foss Analytical A/S | Optical spectrometer |
TWI480512B (zh) * | 2013-04-17 | 2015-04-11 | China Steel Corp | The method of obtaining the best position of blast furnace wall blast furnace |
JP6302677B2 (ja) * | 2014-01-10 | 2018-03-28 | 新日鐵住金株式会社 | 炉幅測定装置及びコークス押出機 |
CN109916346B (zh) * | 2019-03-31 | 2021-06-22 | 东莞职业技术学院 | 一种基于视觉系统的工件平整度的检测装置及检测方法 |
WO2024189803A1 (ja) * | 2023-03-15 | 2024-09-19 | Jfeスチール株式会社 | コークス炉の炉壁補修方法 |
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JP3042758B2 (ja) * | 1995-02-17 | 2000-05-22 | 川崎製鉄株式会社 | コークス炉炭化室の炉壁診断方法および装置 |
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2001
- 2001-07-10 JP JP2001209046A patent/JP3965032B2/ja not_active Expired - Fee Related
- 2001-11-13 TW TW090128089A patent/TW544463B/zh not_active IP Right Cessation
- 2001-11-14 EP EP01982784A patent/EP1340799A4/en not_active Withdrawn
- 2001-11-14 KR KR10-2002-7009109A patent/KR100497765B1/ko active IP Right Grant
- 2001-11-14 BR BRPI0107629-9B1A patent/BR0107629B1/pt not_active IP Right Cessation
- 2001-11-14 WO PCT/JP2001/009966 patent/WO2002040615A1/ja active IP Right Grant
- 2001-11-14 CN CN018037437A patent/CN1218017C/zh not_active Expired - Lifetime
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2003
- 2003-06-24 HK HK03104526.2A patent/HK1052366B/zh not_active IP Right Cessation
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JPH0926309A (ja) * | 1995-07-13 | 1997-01-28 | Sumitomo Metal Ind Ltd | コークス炉の炉体膨張計測方法 |
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WO2003066775A1 (en) * | 2002-01-09 | 2003-08-14 | Nippon Steel Corporation | Furnace wall observation device and furnace wall shape measuring device |
Also Published As
Publication number | Publication date |
---|---|
JP2002213922A (ja) | 2002-07-31 |
HK1052366A1 (en) | 2003-09-11 |
EP1340799A1 (en) | 2003-09-03 |
CN1218017C (zh) | 2005-09-07 |
KR20020067066A (ko) | 2002-08-21 |
BR0107629A (pt) | 2002-10-08 |
BR0107629B1 (pt) | 2013-09-03 |
TW544463B (en) | 2003-08-01 |
HK1052366B (zh) | 2005-12-09 |
EP1340799A4 (en) | 2006-05-31 |
KR100497765B1 (ko) | 2005-06-29 |
CN1395608A (zh) | 2003-02-05 |
JP3965032B2 (ja) | 2007-08-22 |
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