CN114088210A - Method for measuring surface temperature distribution of coke oven carbonization chamber wall - Google Patents
Method for measuring surface temperature distribution of coke oven carbonization chamber wall Download PDFInfo
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- CN114088210A CN114088210A CN202010770775.2A CN202010770775A CN114088210A CN 114088210 A CN114088210 A CN 114088210A CN 202010770775 A CN202010770775 A CN 202010770775A CN 114088210 A CN114088210 A CN 114088210A
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- 239000000571 coke Substances 0.000 title claims abstract description 81
- 238000003763 carbonization Methods 0.000 title claims abstract description 71
- 238000009826 distribution Methods 0.000 title claims abstract description 46
- 238000000034 method Methods 0.000 title claims abstract description 35
- 239000003245 coal Substances 0.000 claims abstract description 124
- 238000004939 coking Methods 0.000 claims abstract description 14
- 238000002485 combustion reaction Methods 0.000 claims description 5
- 239000003034 coal gas Substances 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 16
- 238000000197 pyrolysis Methods 0.000 description 6
- 238000005259 measurement Methods 0.000 description 5
- 238000009529 body temperature measurement Methods 0.000 description 4
- 238000005265 energy consumption Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000000523 sample Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
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- 238000010586 diagram Methods 0.000 description 1
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- 238000011156 evaluation Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
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- 238000012986 modification Methods 0.000 description 1
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- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
- G01J5/0044—Furnaces, ovens, kilns
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
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Abstract
The invention discloses a method for measuring the surface temperature distribution of a coke oven carbonization chamber wall, which comprises the following steps: 1. opening a coal charging hole (8); 2. the temperature measuring instrument (1) is arranged on the furnace top platform (6) through an adjustable bracket, and is positioned at one side of the coal charging hole and faces the furnace wall (7) at the other side; 3. the temperature measuring instrument rotates and shoots the furnace wall image; 4. the pause temperature measuring instrument is moved to the other side of the coal charging hole and faces to the furnace wall on one side; 5. repeating the step 3 to complete the shooting of the furnace walls on the two sides; 6. suspending the temperature measuring instrument and moving the temperature measuring instrument to the next coal charging hole; 7. repeating the steps 1 to 6 until the images of the furnace walls on the two sides of all the coal charging holes are shot; 8. the temperature measuring instrument is connected with the computer to obtain the temperature distribution condition of the surface of the furnace wall of the carbonization chamber. The method can effectively measure the temperature distribution data on the surface of the wall of the coking chamber of the coke oven, thereby guiding the temperature control of the vertical flue of the coke oven by utilizing the temperature distribution data and further effectively ensuring the coking production.
Description
Technical Field
The invention relates to a method for high-temperature thermal measurement and heat energy evaluation of a coke oven kiln, in particular to a method for measuring the surface temperature distribution of a coke oven carbonization chamber wall.
Background
The coke is mainly generated by pyrolyzing coal under the condition of high temperature and air isolation, and the quality of the coke is inseparable from various indexes of industrial analysis and element analysis of raw material coal, the mixing proportion of various coals, the production operation system of a coke oven, the size of the coke oven and the like.
The pyrolysis process conditions of coal include pyrolysis temperature, pyrolysis pressure, residence time, etc. of coal. The temperature is the most important process condition for coal pyrolysis, and the pyrolysis temperature and the pyrolysis reaction depth are different, which not only affect the reaction for generating primary decomposition products, but also affect the secondary reaction for generating volatile components. In order to pursue more coke production, coke ovens are all in full-load production, even some coke ovens are in overload production, so that the phenomena of difficult coke pushing and large coke pushing current occur in the production process, and the normal production is further influenced. The temperature control of the coke oven is an important solution for controlling the large current in the coke pushing process and the difficult coke pushing process, and the main part of the heated coal after being loaded into the coke oven is the surface temperature of the oven wall of the carbonization chamber, so that the measurement and understanding of the temperature distribution of the oven wall of the carbonization chamber of the coke oven have important guiding function on the control of the oven temperature, and also have important function on the stability of the production quality of the coke.
The coke oven in the prior art often has the phenomena that the temperature of a vertical flue exceeds the standard required temperature, the temperature fluctuation range is large, the coke oven often has the phenomena of high energy consumption, immature coke or excessive fire, difficult coke pushing and large coke pushing current, the normal production of the coke oven is seriously influenced, the product quality and the yield of the coke are influenced, the gas consumption of the whole coke oven is influenced, the energy consumption of the coke oven is high and the like, and particularly the yield of the coke production is influenced, so that the normal production of a blast furnace is influenced.
Chinese patent ZL200610046655.8 discloses a device and a method for continuously measuring the temperature of a coke oven, and particularly discloses: the bottom of the coke oven hearth is provided with a temperature measuring hole and a temperature measuring probe, the top end of the temperature measuring hole is provided with a temperature measuring target, the temperature measuring probe collects infrared light signals emitted by the temperature measuring target, the infrared light signals are converted into electric signals through a photoelectric converter and output to a signal processor, and the signal processor with a single chip microcomputer as a core processes the signals to obtain a temperature value. The thermocouple of the device is fixed on the furnace bottom, is easy to damage and is difficult to replace; meanwhile, 5-8 m temperature measuring holes need to be arranged, smoothness of the temperature measuring holes needs to be kept so as to ensure transmission reliability of infrared light signals, the arrangement difficulty is high, the measurement accuracy is greatly influenced by pollution of working environment, and the method cannot be applied to measurement of the temperature of a furnace wall.
Chinese invention patent ZL201710867896.7 discloses a coke oven temperature measurement robot without repeated start and stop, which solves the defects of bad working environment, multiple human factors, long time interval, poor measurement precision and the like in the temperature measurement process of the existing coke oven, but the temperature measurement robot has complex software and hardware structure and high installation, use and maintenance cost, and the temperature measurement robot can not reflect the temperature distribution condition of the oven wall when detecting the temperature of a fire hole connected with a flame path.
Disclosure of Invention
The invention aims to provide a method for measuring the temperature distribution on the surface of the wall of a coke oven carbonization chamber, which can effectively measure the temperature distribution data on the surface of the wall of the coke oven carbonization chamber, so that the temperature control of a vertical flue of a coke oven can be guided by using the temperature distribution data, and the coking production can be further effectively ensured.
The invention is realized by the following steps:
a method for measuring the surface temperature distribution of the wall of a coke oven carbonization chamber comprises the following steps:
step 1: opening one coal charging hole on the carbonization chamber;
step 2: a temperature measuring instrument is arranged on the furnace top platform through an adjustable bracket, and the temperature measuring instrument is positioned at one side of the coal charging hole and faces the furnace wall at the other side of the coal charging hole in the carbonization chamber;
and step 3: starting the temperature measuring instrument to enable the temperature measuring instrument to rotate under the driving of the adjustable support, and shooting an image of a furnace wall on the side of the coal charging hole through the coal charging hole;
and 4, step 4: pausing the shooting of the temperature measuring instrument, and moving the temperature measuring instrument and the adjustable bracket to the other side of the coal charging hole and facing the furnace wall at one side of the coal charging hole in the carbonization chamber;
and 5: repeating the step 3 to finish the image shooting of the furnace walls at the two sides of the coal charging hole;
step 6: pausing the shooting of the temperature measuring instrument, and moving the temperature measuring instrument and the adjustable bracket to the next coal charging hole;
and 7: repeating the steps 1 to 6 until the temperature measuring instrument shoots the images of the furnace walls on the two sides of all the coal charging holes;
and 8: and connecting the temperature measuring instrument to a computer to obtain the temperature distribution condition of the furnace wall surface of the carbonization chamber, and guiding the adjustment and control of the coal gas of the combustion chamber.
After opening any coal charging hole and before installing a temperature measuring instrument, keeping the coal charging hole in an open state for a period of time.
The one time period is 1-2 min.
The adjustable bracket comprises a support rod, a bracket main body arranged on the furnace top platform and a measuring instrument platform arranged on the bracket main body; the support rod and the support main body are of telescopic structures, and two ends of the support rod are rotatably connected between the measuring instrument platform and the support main body, so that the temperature measuring instrument arranged on the measuring instrument platform can lift and rotate.
The range of the rotation angle when the temperature measuring instrument shoots is as follows: the furnace top platform is rotated from the angle of 10 degrees between the camera of the temperature measuring instrument and the furnace top platform to the angle of 80 degrees between the camera of the temperature measuring instrument and the furnace top platform.
When the temperature measuring instrument moves among all the coal charging holes, the temperature measuring instrument moves from the coal charging hole close to the coke oven side to the coal charging hole close to the coke oven side in sequence.
The arrangement positions of the temperature measuring instruments on the two sides of the same coal charging hole are symmetrical about the coal charging hole and respectively face the furnace walls on the two sides in the carbonization chamber.
The temperature measuring instrument is arranged above the outer side of the coal charging hole.
The vertical distance between the temperature measuring instrument and the coal charging hole is 1.1-1.3m, and the horizontal distance between the temperature measuring instrument and the outer edge of the coal charging hole is 10-20 cm.
The sum of the image areas of the furnace walls on the two sides of all the coal charging holes obtained by shooting is not less than 50% of the total area of the furnace walls.
Compared with the prior art, the invention has the following beneficial effects:
1. the invention adopts the temperature measuring instrument which can be adjusted in a rotating way to measure the infrared image from the top to the bottom of the surface of the wall of the carbonization chamber of the coke oven, and comprehensively knows the surface temperature distribution condition of the wall of the whole carbonization chamber through the furnace wall images at two sides of the plurality of coal charging holes, thereby having large measured data quantity and high measuring precision.
2. According to the invention, the temperature measuring instrument is arranged on the support above the furnace top platform, and the shooting is carried out in a rotating mode from top to bottom through the coal charging hole, so that the temperature measuring instrument is always kept at a proper working environment temperature, and the shooting effectiveness on the surface of the furnace wall is also ensured.
3. The invention can better understand the working state of the coke oven temperature system through the temperature distribution on the surface of the oven wall, is more convenient to control the temperature of the coke oven, can effectively ensure the coke maturity and the coke quality in the coking production process, and effectively ensure the continuous production of the coke oven, thereby reducing the gas consumption and the coking energy consumption in the coking production process, reducing the occurrence of difficult coke pushing and large coke pushing current, being beneficial to improving the coke yield, reducing the production cost and improving the economic benefit of enterprises.
According to the invention, the temperature distribution condition of the surface of the wall of the coke oven carbonization chamber can be comprehensively known through the shot infrared image of the surface of the wall of the coke oven carbonization chamber, so that the temperature control of the vertical flame path of the coke oven can be guided by using the temperature distribution data, the coking production can be effectively ensured, and the coke quality can be improved.
Drawings
FIG. 1 is a flowchart of a method for measuring the temperature distribution on the surface of the wall of the coking chamber of the coke oven according to the present invention;
FIG. 2 is a view showing the operation of the method for measuring the temperature distribution on the wall surface of the coking chamber of the coke oven according to the present invention;
FIG. 3 is a schematic diagram of the structure of a coal charging hole of a coke oven coking chamber.
In the figure, 1 temperature measuring instrument, 2 computer, 3 measuring instrument platform, 4 support rods, 5 support main body, 6 furnace top platform, 7 furnace wall and 8 coal charging hole.
Detailed Description
The invention is further described with reference to the following figures and specific examples.
Referring to fig. 1 and 2, a method for measuring the temperature distribution on the surface of the wall of the coking chamber of a coke oven comprises the following steps:
step 1: one of the coal charging holes 8 on the carbonization chamber is opened, and after the coal charging hole 8 is opened, the coal charging hole 8 is kept in an open state in a time period before the temperature measuring instrument 1 is installed, so that the heat flow at the coal charging hole 8 is stable, and the accuracy and the effect of image pickup are prevented from being influenced.
Preferably, said one period of time is 1-2 min.
Step 2: the temperature measuring instrument 1 is arranged on the furnace top platform 6 through an adjustable bracket, so that the temperature measuring instrument 1 is positioned on one side of the coal charging hole 8 and faces the furnace wall 7 on the other side of the coal charging hole 8 in the carbonization chamber.
The adjustable support comprises a support rod 4, a support main body 5 arranged on the furnace top platform 6 and a measuring instrument platform 3 arranged on the support main body 5; the support rod 4 and the support main body 5 are telescopic rod structures, and two ends of the support rod 4 are rotatably connected between the measuring instrument platform 3 and the support main body 5 through rotating pieces such as a rotating shaft and a bearing thereof, so that the temperature measuring instrument 1 installed on the measuring instrument platform 3 can be lifted and rotated. Preferably, the support rod 4 and the support body 5 can be connected by a rod member sleeved in a hydraulic type, a pneumatic type, a mechanical type and the like to realize extension and retraction, so that the temperature measuring instrument 1 is lifted and lowered by the extension and retraction of the support body 5, and the shooting angle of the temperature measuring instrument 1 is adjusted by the extension and retraction and rotation of the support rod 4.
The temperature measuring instrument 1 may preferably be a high temperature infrared thermal imager of the prior art, has a function of taking infrared images, and can transmit image information to the computer 2.
And step 3: and starting the temperature measuring instrument 1, enabling the temperature measuring instrument 1 to rotate under the driving of the adjustable bracket, and shooting an image of the furnace wall 7 at the side part of the coal charging hole 8 through the coal charging hole 8.
The range of the rotation angle when the temperature measuring instrument 1 shoots is as follows: the furnace top platform 6 rotates from the angle of 10 degrees between the camera of the temperature measuring instrument 1 and the furnace top platform 6 to the angle of 80 degrees between the camera of the temperature measuring instrument 1 and the furnace top platform 6, so that the temperature measuring instrument 1 can shoot an image of the furnace wall 7 from the upper part to the bottom part through the coal charging hole 8 and basically covers the longitudinal height of the carbonization chamber. The temperature measuring instrument 1 can obtain the images of the furnace wall 7 in a continuous shooting mode in the rotating process.
And 4, step 4: and (3) pausing the shooting of the temperature measuring instrument 1, moving the temperature measuring instrument 1 and the adjustable bracket to the other side of the coal charging hole 8 and facing the furnace wall 7 on one side of the coal charging hole 8 in the carbonization chamber, and enabling the arrangement positions of the temperature measuring instrument 1 on the two sides of the same coal charging hole 8 to be symmetrical about the coal charging hole 8 and respectively face the furnace walls 7 on the two sides in the carbonization chamber.
And 5: and (5) repeating the step (3) to finish the image shooting of the furnace walls (7) at the two sides of the coal charging hole (8). The shooting method of the images of the furnace walls 7 at the two sides of the coal charging hole 8 is the same, and the description is omitted here.
Step 6: the shooting of the temperature measuring instrument 1 is suspended, and the temperature measuring instrument 1 and the adjustable bracket are moved to the next coal charging hole 8.
And 7: and (5) repeating the steps 1 to 6 until the temperature measuring instrument 1 finishes shooting the images of the furnace walls 7 on the two sides of all the coal charging holes 8. The shooting method of the images of the furnace walls 7 on the two sides of the coal charging hole 8 is the same, and the detailed description is omitted.
When the temperature measuring instrument 1 moves among all the coal charging holes 8, the temperature measuring instrument 1 moves in the order from the coal charging hole 8 near the coke oven side (left side shown in fig. 3) to the coal charging hole 8 near the coke oven side (right side shown in fig. 3).
The temperature measuring instrument 1 is arranged above the outer side of the coal charging hole 8, preferably, the vertical distance between the temperature measuring instrument 1 and the coal charging hole 8 is 1.1-1.3m, and the horizontal distance between the temperature measuring instrument 1 and the outer edge of the coal charging hole 8 is 10-20 cm. The installation position of the temperature measuring instrument 1 ensures that the images of the furnace wall 7 beside the coal charging hole 8 can be shot through the coal charging hole 8, and meanwhile, the temperature measuring instrument 1 is positioned above the furnace top platform 6, namely in a normal temperature region, so that the reliable and safe operation of the temperature measuring instrument 1 can be ensured, and the accuracy of the furnace wall temperature distribution data of the carbonization chamber is ensured.
And 8: the temperature measuring instrument 1 is connected to the computer 2, the temperature distribution situation of the furnace wall surface of the carbonization chamber is obtained after the derivation of the shot image and the data processing of the computer 2, and the temperature distribution situation of the furnace wall surface of the carbonization chamber can be used for guiding the gas regulation and control of the combustion chamber.
The sum of the image areas of the furnace walls 7 at the two sides of the coal charging hole 8, which are obtained by shooting by the temperature measuring instrument 1, is not less than 50 percent of the total area of the furnace walls 7. Usually, four coal charging holes 8 are arranged at the top of one carbonization chamber, the area of the furnace wall 7 in an image obtained through the four coal charging holes 8 can reach more than 70 percent of the total area of the furnace wall 7, and the total temperature distribution of the furnace wall of the whole carbonization chamber can be effectively reflected.
Example 1: the wall temperature test was carried out on one of the coking chambers of model JNX2-70-1 coke oven, which had four coal charging holes 8 from the machine side (left side in FIG. 3) to the coke side (right side in FIG. 3) and which were labeled 1#, 2#, 3# and 4# in that order, as shown in FIG. 3.
First, the coal charging hole 8 at 1# was opened, and kept in the open state for 1 min. The temperature measuring instrument 1 is arranged on a measuring instrument platform 3, a support main body 5 of a tripod structure is arranged on a furnace top platform 6, the horizontal distance between the temperature measuring instrument 1 and the outer edge of a coal charging hole 8 is 10cm, and the height distance between the temperature measuring instrument 1 and the coal charging hole 8 is adjusted to be 1.3m through the expansion of the support main body 5.
The shooting angle of the camera of the temperature measuring instrument 1 is adjusted by utilizing the stretching and the rotation of the supporting rod 4, the temperature measuring instrument 1 can adopt an FLIR SC330 high-temperature infrared thermal imager which carries out automatic focusing and shooting, the shooting angle is continuously rotated to 80 degrees from the included angle of the camera and the plane of the furnace top by 10 degrees and continuously shoots the furnace wall 7 facing the camera in the rotating process, the image of the furnace wall 7 from the upper part to the bottom at one side of the coal charging hole 8 at the position of the carbonization chamber 1# is obtained, and the shooting is suspended. Then, the high temperature infrared thermal imaging camera is moved to the opposite side of the coal charging hole 8 at the carbonization chamber 1#, and an image of the furnace wall 7 at the other side of the coal charging hole 8 at the carbonization chamber 1# is obtained according to the above steps. Thereby completing the acquisition of the surface infrared images of the furnace walls 7 at the two sides of the coal charging hole 8 at the position of the carbonization chamber 1 #.
And opening the coal charging hole 8 at the position of the carbonization chamber 2# and keeping the opening state for 1min, and respectively collecting surface infrared images of furnace walls 7 on two sides of the coal charging hole 8 at the position of the carbonization chamber 2# according to the steps.
And opening the coal charging hole 8 at the position of the carbonization chamber 3# and keeping the opening state for 1min, and respectively collecting surface infrared images of furnace walls 7 at two sides of the coal charging hole 8 at the position of the carbonization chamber 3# according to the steps.
And opening the coal charging hole 8 at the position of the carbonization chamber 4# and keeping the opening state for 1min, and respectively collecting surface infrared images of furnace walls 7 at two sides of the coal charging hole 8 at the position of the carbonization chamber 4 #.
The temperature measuring instrument 1 is connected to the computer 2, transmits the collected surface infrared image to the computer 2, converts the infrared image in image format such as image picture or TIFF into corresponding temperature data through processing modes such as gray extraction and the like by infrared image temperature data software in the prior art, obtains a temperature distribution data table of the surface of the furnace wall of the carbonization chamber, and can guide the adjustment and control of the gas in the combustion chamber through temperature distribution.
The temperature distribution data of the wall surface of the carbonization chamber in this example are shown in tables 1 and 2:
TABLE 1 distribution chart of temperature data on furnace wall side surface of carbonization chamber
TABLE 2 temperature data distribution chart of the other side surface of the oven wall of the carbonization chamber
As can be seen from tables 1 and 2, the surface temperature of the furnace walls 7 at the two sides of the No. 1 coal charging hole 8 is generally lower than that of the other three coal charging holes 8, namely the side temperature of the coke oven machine is lower; as can be seen from Table 2, the surface temperature of the furnace wall 7 at the other side of the No. 4 coal charging hole 8 is generally lower than the surface temperature of the furnace wall 7 at the other side of the middle No. 2 and No. 3 coal charging holes 8, i.e. the edge temperature at the coke side of the coke oven is lower. Therefore, the amount of both-side heating gas needs to be increased.
Example 2: the wall temperature test was carried out on one of the coking chambers of model JNX70-3 coke oven, which had four coal charging holes 8 from the machine side (left side in FIG. 3) to the coke side (right side in FIG. 3) and which were labeled 1#, 2#, 3# and 4# in that order, as shown in FIG. 3.
First, the coal charging hole 8 at 1# was opened, and kept in the open state for 2 min. The temperature measuring instrument 1 is arranged on a measuring instrument platform 3, a support main body 5 of a tripod structure is arranged on a furnace top platform 6, the horizontal distance between the temperature measuring instrument 1 and the outer edge of a coal charging hole 8 is 20cm, and the height distance between the temperature measuring instrument 1 and the coal charging hole 8 is adjusted to be 1.1m through the expansion and contraction of the support main body 5.
The shooting angle of the camera of the temperature measuring instrument 1 is adjusted by utilizing the stretching and the rotation of the supporting rod 4, the temperature measuring instrument 1 can adopt an FLIR SC330 high-temperature infrared thermal imager which carries out automatic focusing and shooting, the shooting angle is continuously rotated to 80 degrees from the included angle of the camera and the plane of the furnace top by 10 degrees and continuously shoots the furnace wall 7 facing the camera in the rotating process, the furnace wall 7 image from the upper part to the bottom at one side of the coal charging hole 8 at the carbonization chamber 1# is obtained, and the shooting is suspended. Then, the high-temperature infrared thermal imager is moved to the opposite side of the coal charging hole 8 at the carbonization chamber 1#, and an image of the furnace wall 7 at the other side of the coal charging hole 8 at the carbonization chamber 1# is obtained according to the above steps. Thereby completing the acquisition of the surface infrared images of the furnace walls 7 at the two sides of the coal charging hole 8 at the position of the carbonization chamber 1 #.
And opening the coal charging hole 8 at the position of the carbonization chamber 2# and keeping the opening state for 2min, and respectively collecting surface infrared images of furnace walls 7 on two sides of the coal charging hole 8 at the position of the carbonization chamber 2# according to the steps.
And opening the coal charging hole 8 at the position of the carbonization chamber 3# and keeping the opening state for 2min, and respectively collecting surface infrared images of furnace walls 7 at two sides of the coal charging hole 8 at the position of the carbonization chamber 3# according to the steps.
And opening the coal charging hole 8 at the position of the carbonization chamber 4# and keeping the opening state for 2min, and respectively collecting surface infrared images of furnace walls 7 at two sides of the coal charging hole 8 at the position of the carbonization chamber 4 #.
The temperature measuring instrument 1 is connected to the computer 2, transmits the collected surface infrared image to the computer 2, converts the infrared image in image format such as image picture or TIFF into corresponding temperature data through processing modes such as gray extraction and the like by infrared image temperature data software in the prior art, obtains a surface temperature distribution data table of the furnace wall of the carbonization chamber, and can guide the adjustment and control of the gas in the combustion chamber through temperature distribution.
The surface temperature distribution data of the wall of the carbonization chamber in this example are shown in tables 3 and 4:
TABLE 3 distribution chart of surface temperature data of furnace wall side of carbonization chamber
TABLE 4 surface temperature data distribution chart of the other side of the wall of the carbonization chamber
As can be seen from Table 3, the wall 7 on one side of the No. 2 coal charging hole 8 is generally slightly higher than the other three coal charging holes 8, so that the heating gas on the side of the No. 2 coal charging hole 8 needs to be properly reduced, and from tables 3 and 4, the wall 7 on the side of the No. 1 coal charging hole 8, i.e. the machine side, and the edge of the No. 4 coal charging hole 8, i.e. the coke side, are generally lower in temperature than the wall 7 on the middle of the No. 2 and No. 3 coal charging holes 8, so that the gas amount should be properly increased.
The present invention is not limited to the above embodiments, and any modifications, equivalent replacements, improvements, etc. within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A method for measuring the surface temperature distribution of a coke oven carbonization chamber furnace wall is characterized by comprising the following steps: the method comprises the following steps:
step 1: one of the coal charging holes (8) on the carbonization chamber is opened;
step 2: a temperature measuring instrument (1) is arranged on the furnace top platform (6) through an adjustable bracket, so that the temperature measuring instrument (1) is positioned on one side of the coal charging hole (8) and faces to a furnace wall (7) on the other side of the coal charging hole (8) in the carbonization chamber;
and step 3: starting the temperature measuring instrument (1), enabling the temperature measuring instrument (1) to rotate under the driving of the adjustable support, and shooting an image of a furnace wall (7) at the side part of the coal charging hole (8) through the coal charging hole (8);
and 4, step 4: pausing the shooting of the temperature measuring instrument (1), and moving the temperature measuring instrument (1) and the adjustable bracket to the other side of the coal charging hole (8) and to the furnace wall (7) facing one side of the coal charging hole (8) in the carbonization chamber;
and 5: repeating the step 3 to finish the image shooting of the furnace walls (7) at the two sides of the coal charging hole (8);
step 6: pausing the shooting of the temperature measuring instrument (1), and moving the temperature measuring instrument (1) and the adjustable bracket to the next coal charging hole (8);
and 7: repeating the steps 1 to 6 until the temperature measuring instrument (1) finishes shooting images of furnace walls (7) on two sides of all the coal charging holes (8);
and 8: and connecting the temperature measuring instrument (1) to the computer (2) to obtain the temperature distribution condition of the furnace wall surface of the carbonization chamber, and guiding the adjustment and control of the coal gas of the combustion chamber.
2. The method for measuring the temperature distribution on the surface of the wall of the coke oven carbonization chamber as defined in claim 1, wherein: after opening any one of the coal charging holes (8), the coal charging hole (8) is kept in an open state for a period of time before installing the temperature measuring instrument (1).
3. The method for measuring the temperature distribution on the surface of the wall of the coke oven carbonization chamber as defined in claim 2, wherein: the one time period is 1-2 min.
4. The method for measuring the temperature distribution on the surface of the wall of the coke oven carbonization chamber as defined in claim 1, wherein: the adjustable support comprises a support rod (4), a support main body (5) arranged on the furnace top platform (6) and a measuring instrument platform (3) arranged on the support main body (5); the support rod (4) and the support main body (5) are of telescopic structures, and two ends of the support rod (4) are rotatably connected between the measuring instrument platform (3) and the support main body (5), so that the temperature measuring instrument (1) installed on the measuring instrument platform (3) can be lifted and rotated.
5. The method for measuring the temperature distribution on the surface of the wall of the coke oven carbonization chamber according to claim 1 or 4, wherein: the range of the rotation angle when the temperature measuring instrument (1) shoots is as follows: the angle between the camera of the temperature measuring instrument (1) and the furnace top platform (6) is 10 degrees, and the angle between the camera of the temperature measuring instrument (1) and the furnace top platform (6) is 80 degrees.
6. The method for measuring the temperature distribution on the surface of the wall of the coke oven carbonization chamber as defined in claim 1, wherein: when the temperature measuring instrument (1) moves among all the coal charging holes (8), the temperature measuring instrument (1) moves from the coal charging hole (8) close to the coke oven side to the coal charging hole (8) close to the coke oven side in sequence.
7. The method for measuring the temperature distribution on the surface of the wall of the coke oven carbonization chamber as defined in claim 1, wherein: the arrangement positions of the temperature measuring instruments (1) on two sides of the same coal charging hole (8) are symmetrical about the coal charging hole (8) and respectively face the furnace walls (7) on two sides in the carbonization chamber.
8. The method for measuring the temperature distribution on the surface of the wall of the coke oven carbonization chamber according to claim 1 or 7, wherein: the temperature measuring instrument (1) is arranged above the outer side of the coal charging hole (8).
9. The method for measuring the temperature distribution on the surface of the wall of the coking chamber of the coke oven as defined in claim 8, wherein: the vertical distance between the temperature measuring instrument (1) and the coal charging hole (8) is 1.1-1.3m, and the horizontal distance between the temperature measuring instrument (1) and the outer edge of the coal charging hole (8) is 10-20 cm.
10. The method for measuring the temperature distribution on the surface of the wall of the coke oven carbonization chamber as defined in claim 1, wherein: the sum of the image areas of the furnace walls (7) at the two sides of the coal charging hole (8) obtained by shooting by the temperature measuring instrument (1) is not less than 50% of the total area of the furnace walls (7).
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