CN116818117A - Temperature measurement system used during dry quenching furnace baking - Google Patents
Temperature measurement system used during dry quenching furnace baking Download PDFInfo
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- CN116818117A CN116818117A CN202310604380.9A CN202310604380A CN116818117A CN 116818117 A CN116818117 A CN 116818117A CN 202310604380 A CN202310604380 A CN 202310604380A CN 116818117 A CN116818117 A CN 116818117A
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- dry quenching
- temperature measuring
- quenching furnace
- furnace
- temperature
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- 238000010791 quenching Methods 0.000 title claims abstract description 119
- 230000000171 quenching effect Effects 0.000 title claims abstract description 119
- 238000009529 body temperature measurement Methods 0.000 title claims abstract description 20
- 239000011449 brick Substances 0.000 claims abstract description 67
- 238000001816 cooling Methods 0.000 claims abstract description 18
- 238000001035 drying Methods 0.000 claims description 15
- 239000004927 clay Substances 0.000 claims description 14
- KZHJGOXRZJKJNY-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Si]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O KZHJGOXRZJKJNY-UHFFFAOYSA-N 0.000 claims description 6
- 238000009413 insulation Methods 0.000 claims description 6
- 229910052863 mullite Inorganic materials 0.000 claims description 6
- 238000000034 method Methods 0.000 abstract description 14
- 230000000694 effects Effects 0.000 abstract description 4
- 239000000463 material Substances 0.000 abstract description 4
- 230000002349 favourable effect Effects 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 8
- 239000011819 refractory material Substances 0.000 description 8
- 239000000571 coke Substances 0.000 description 6
- 239000007789 gas Substances 0.000 description 5
- 239000011261 inert gas Substances 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 238000007601 warm air drying Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
Abstract
The invention relates to a temperature measurement system for a dry quenching furnace during baking, which comprises a plurality of first temperature measurement points arranged in a cooling area at the lower part of a dry quenching furnace body and a plurality of second temperature measurement points arranged in a pre-storing area at the upper part of the dry quenching furnace body; the first temperature measuring device is correspondingly arranged at each temperature measuring point, and the depths of the first temperature measuring devices extending into the furnace wall of the dry quenching furnace are different; and each second temperature measuring point is correspondingly provided with a second temperature measuring device, and the depths of the second temperature measuring devices extending into the furnace wall of the dry quenching furnace are different. The temperature measuring system is favorable for accurately measuring the temperature change conditions of refractory bricks with different materials and different thicknesses during the baking process, so that the temperature change of the baking process of the dry quenching furnace can be mastered in an omnibearing and three-dimensional manner, the baking process can be carried out according to a set baking curve, and the baking effect is improved.
Description
Technical Field
The invention relates to the technical field of dry quenching, in particular to a temperature measurement system for a dry quenching furnace during baking.
Background
Dry quenching is a method of quenching in which red Jiao Jiangwen is cooled with an inert gas. In the dry quenching process, red coke is filled from the top of the dry quenching furnace, low-temperature inert gas is blown in from a blast cap and a cone hopper at the lower part of a cooling chamber of the dry quenching furnace, and during normal production, the coke is continuously discharged after being cooled by the low-temperature inert gas.
The dry quenching furnace is generally composed of a cooling area, a chute area, an annular air duct area and a pre-storing area, wherein the annular air duct area is connected with a low-temperature inert gas circulation system. When the lining refractory materials at all parts are completely built after newly built or after overhaul of the dry quenching furnace and after the equipment such as a boiler is installed and debugged, the dry quenching furnace baking operation is needed, so that the dry quenching device is gradually heated from a cold state to a temperature capable of containing red coke.
The dry quenching and baking process is divided into two stages, namely a warm air drying stage which mainly aims at removing water of refractory brick masonry of a primary dust remover in a dry quenching furnace and a low-temperature inert gas circulation system and a gas baking stage which mainly aims at heating. The baking process of the dry quenching furnace needs to make a detailed baking curve, and from the baking, the heating operation is strictly performed according to the made baking curve so as to avoid adverse effects on the brickwork of the dry quenching furnace and the dry quenching boiler.
The Chinese patent application with the application publication number of CN106967448A discloses a method for drying a coke dry quenching system after large-area replacement of a refractory material, which comprises the following steps: drying by warm air, taking the inlet temperature T2 of the dry quenching furnace as a main management temperature, and raising the temperature T5 of a pre-stored section of the dry quenching furnace from normal temperature to 100-120 ℃; installing a dry quenching coke gas oven burner, introducing air to assist a coke oven gas combustion oven by adjusting an emergency release valve of a primary dust remover, taking the temperature T5 of a pre-stored section of the dry quenching oven as a main management temperature, and raising the temperature to 500-600 ℃; and (3) carrying out gas replacement on the dry quenching furnace by using N2, controlling the content of combustible gas components within a safe range, adding red Jiao Honglu into the dry quenching furnace, and finally raising the inlet temperature T6 of the dry quenching boiler to 800-960 ℃, and raising the pre-stored section temperature T5 of the dry quenching furnace to 800-1050 ℃.
The temperature measuring system can comprehensively and accurately monitor the temperature change in the dry quenching furnace drying process, and is favorable for the drying process to be carried out according to a set drying curve.
The invention provides a temperature measuring system for a dry quenching furnace during baking, wherein a plurality of temperature measuring points are arranged in a lower cooling area and an upper pre-storing area of a dry quenching furnace body, and a first temperature measuring device or a second temperature measuring device corresponding to each temperature measuring point is respectively inserted into the wall of the dry quenching furnace, so that the depth of the wall of the dry quenching furnace is different, the temperature change conditions of refractory bricks with different materials and different thicknesses during baking can be accurately measured, the temperature change of the dry quenching furnace during baking can be mastered in an omnibearing and three-dimensional manner, the baking process can be carried out according to a given baking curve, and the baking effect can be improved.
In order to achieve the above purpose, the invention is realized by adopting the following technical scheme:
a temperature measurement system during drying of a dry quenching furnace comprises a plurality of first temperature measurement points arranged in a cooling area at the lower part of the dry quenching furnace body and a plurality of second temperature measurement points arranged in a pre-storing area at the upper part of the dry quenching furnace body; a plurality of first temperature measuring points are uniformly distributed along the circumferential direction of the dry quenching furnace body at the same height; a plurality of second temperature measuring points are uniformly distributed along the circumferential direction of the dry quenching furnace body at the same height; the first temperature measuring device is correspondingly arranged at each temperature measuring point, and the depths of the first temperature measuring devices extending into the furnace wall of the dry quenching furnace are different; each second temperature measuring point is correspondingly provided with a second temperature measuring device, and the depths of the second temperature measuring devices extending into the furnace wall of the dry quenching furnace are different; the signal output end of the first temperature measuring device and the signal output end of the second temperature measuring device are respectively connected with a dry quenching furnace control system.
Further, the number of the first temperature measuring points is 3-6.
Further, the number of the second temperature measuring points is 3-6.
Furthermore, the first temperature measuring device and the second temperature measuring device are temperature thermocouples.
Further, along the same circumferential direction, the depths of the adjacent 2 temperature measuring devices extending into the furnace wall of the dry quenching furnace are 150-250 mm different.
Further, along the same circumferential direction, the depths of two adjacent 2 temperature measuring devices extending into the wall of the dry quenching furnace differ by 150-250 mm.
Further, the furnace wall of the cooling area at the lower part of the dry quenching furnace body consists of 3 layers of refractory bricks, wherein heat insulation bricks, clay bricks and mullite bricks are sequentially arranged from the furnace shell to the inner direction of the furnace, and the length direction of the refractory bricks corresponds to the radial direction of the dry quenching furnace; along the same circumferential direction, the depths of the adjacent 2 temperature measuring devices extending into the furnace wall of the dry quenching furnace differ by half the length of the refractory bricks.
Further, the furnace wall of the pre-storing area at the upper part of the dry quenching furnace body consists of 2 layers of refractory bricks, heat insulating bricks and clay bricks are sequentially arranged from the furnace shell to the inner direction of the furnace, and the length direction of the refractory bricks corresponds to the radial direction of the dry quenching furnace; along the same circumferential direction, the depths of two adjacent 2 temperature measuring devices extending into the furnace wall of the dry quenching furnace differ by half the length of the refractory bricks.
Compared with the prior art, the invention has the beneficial effects that:
1) A plurality of temperature measuring points are arranged in a lower cooling area and an upper pre-storing area of the dry quenching furnace body, and the depths of the first temperature measuring device or the second temperature measuring device corresponding to each temperature measuring point penetrating into the wall of the dry quenching furnace are different, so that the temperature change condition of refractory bricks with different materials and different thicknesses in the drying process of the dry quenching furnace can be accurately measured, and the temperature change in the drying process of the dry quenching furnace can be mastered in an omnibearing and three-dimensional manner;
2) The method is favorable for the baking process to be carried out according to a set baking curve, so that the baking efficiency and the baking effect are improved;
3) Is beneficial to saving energy and reducing consumption, improves the safety of the baking process and avoids dangerous accidents.
Drawings
FIG. 1 is a schematic diagram of a temperature measurement system for quenching and baking according to the present invention.
FIG. 2a is a schematic diagram of an embodiment of an A-set state of the temperature measuring device.
FIG. 2B is a schematic diagram of a B-set state of the temperature measuring device according to an embodiment of the present invention.
FIG. 2C is a schematic diagram of a temperature measuring device in a C-set state according to an embodiment of the invention.
FIG. 2D is a schematic diagram of a D-set state of the temperature measuring device according to an embodiment of the present invention.
FIG. 3a is a schematic diagram of a temperature measuring device in a second A setting state according to an embodiment of the present invention.
FIG. 3B is a schematic diagram of a second B setup state of the temperature measuring device according to an embodiment of the present invention.
FIG. 3C is a schematic diagram of a second C setting state of the temperature measuring device according to an embodiment of the present invention.
In the figure: 1. the temperature measuring point I2, the temperature measuring point II 3, the heat insulating brick 4, the clay brick 5, the mullite brick 11, the temperature measuring device I A12, the temperature measuring device I B13, the temperature measuring device I C14, the temperature measuring device I D21, the temperature measuring device II A22, the temperature measuring device II B23 and the temperature measuring device II C
Detailed Description
The following is a further description of embodiments of the invention, taken in conjunction with the accompanying drawings:
as shown in FIG. 1, the temperature measuring system for the dry quenching furnace in the invention comprises a plurality of first temperature measuring points 1 arranged in a cooling area at the lower part of a dry quenching furnace body and a plurality of second temperature measuring points 2 arranged in a pre-storing area at the upper part of the dry quenching furnace body; the first temperature measuring points 1 are uniformly distributed along the circumferential direction of the dry quenching furnace body at the same height; a plurality of second temperature measuring points 2 are uniformly distributed along the circumferential direction of the dry quenching furnace body at the same height; each temperature measuring point I1 is correspondingly provided with a temperature measuring device I, and the depths of the plurality of temperature measuring devices I extending into the furnace wall of the dry quenching furnace are different; each second temperature measuring point 2 is correspondingly provided with a second temperature measuring device, and the depths of the second temperature measuring devices extending into the furnace wall of the dry quenching furnace are different; the signal output end of the first temperature measuring device and the signal output end of the second temperature measuring device are respectively connected with a dry quenching furnace control system.
Further, the number of the first temperature measuring points 1 is 3-6.
Further, the number of the second temperature measuring points 2 is 3-6.
Furthermore, the first temperature measuring device and the second temperature measuring device are temperature thermocouples.
Further, along the same circumferential direction, the depths of the adjacent 2 temperature measuring devices extending into the furnace wall of the dry quenching furnace are 150-250 mm different.
Further, along the same circumferential direction, the depths of two adjacent 2 temperature measuring devices extending into the wall of the dry quenching furnace differ by 150-250 mm.
Further, the furnace wall of the cooling area at the lower part of the dry quenching furnace body consists of 3 layers of refractory bricks, wherein the heat insulation bricks 3, the clay bricks 4 and the mullite bricks 5 are sequentially arranged from the furnace shell to the inner direction of the furnace, and the length direction of the refractory bricks corresponds to the radial direction of the dry quenching furnace; along the same circumferential direction, the depths of the adjacent 2 temperature measuring devices extending into the furnace wall of the dry quenching furnace differ by half the length of the refractory bricks.
Further, the furnace wall of the pre-storing area at the upper part of the dry quenching furnace body consists of 2 layers of refractory bricks, a heat insulating brick 3 and a clay brick 4 are sequentially arranged from the furnace shell to the inner direction of the furnace, and the length direction of the refractory bricks corresponds to the radial direction of the dry quenching furnace; along the same circumferential direction, the depths of two adjacent 2 temperature measuring devices extending into the furnace wall of the dry quenching furnace differ by half the length of the refractory bricks.
As shown in FIG. 1, the temperature measuring system for the dry quenching furnace in the invention comprises a plurality of first temperature measuring points 1 arranged in a cooling area at the lower part of a dry quenching furnace body and a plurality of second temperature measuring points 2 arranged in a pre-storing area at the upper part of the dry quenching furnace body.
In the dry quenching furnace, the heat transfer coefficient and other physical and chemical indexes of the cooling area and the pre-storing area are different due to different types and thicknesses of masonry refractory materials. The invention controls the depths of each temperature measuring device penetrating into the furnace wall of the dry quenching furnace to be different, can measure the temperatures of refractory bricks of different materials and different depths, further accurately monitors the temperature change process of refractory materials in different areas of the dry quenching furnace body during the furnace drying, comprehensively and accurately controls the furnace drying process, and achieves the purposes of energy conservation and consumption reduction.
The number of the first 1 temperature measuring points of the cooling area is preferably 3-6, and the first 1 temperature measuring points are uniformly distributed along the circumference of the dry quenching furnace body at the same height.
The refractory materials forming the furnace wall of the cooling zone are a heat insulation brick 3, a clay brick 4 and a mullite brick 5 in sequence from the furnace shell to the inside of the furnace, and the length direction of the refractory bricks corresponds to the radial direction of the dry quenching furnace; the depths of the temperature measuring devices I of the temperature measuring points I1 in the radial cooling area extending into the furnace wall are different, preferably along the same circumferential direction, and the difference of the insertion depths of the adjacent 2 temperature measuring devices I is the length of a half refractory brick.
The number of the second 2 temperature measuring points in the pre-storing area is preferably 3-6, and the second 2 temperature measuring points are uniformly distributed along the circumferential direction of the dry quenching furnace body at the same height.
The refractory materials forming the wall of the pre-stored area are heat insulating bricks 3 and clay bricks 4 in sequence from the furnace shell to the inside of the furnace, and the length direction of the refractory bricks corresponds to the radial direction of the dry quenching furnace; the depths of the second temperature measuring devices of the second temperature measuring points 2 in the pre-storage area extending into the furnace wall are different, preferably along the same circumferential direction, and the difference of the insertion depths of the two adjacent 2 temperature measuring devices is the length of a half refractory brick.
The following examples are given by way of illustration of detailed embodiments and specific procedures based on the technical scheme of the present invention, but the scope of the present invention is not limited to the following examples.
[ example ]
As shown in fig. 1, 2 a-2 d and 3 a-3 c, in this embodiment, a temperature measurement system for drying a dry quenching furnace includes 4 first temperature measurement points 1 disposed in a cooling area at a lower portion of the dry quenching furnace body and 3 second temperature measurement points 2 disposed in a pre-storing area at an upper portion of the dry quenching furnace body; the first 4 temperature measuring points 1 are uniformly distributed along the circumferential direction of the dry quenching furnace body at the same height; the 3 second temperature measuring points 2 are uniformly distributed along the circumferential direction of the dry quenching furnace body at the same height; each first temperature measuring point 1 is correspondingly provided with a first temperature measuring device, and the depths of the first 4 temperature measuring devices extending into the furnace wall of the dry quenching furnace are different; each second temperature measuring point 2 is correspondingly provided with a second temperature measuring device, and the depths of the second temperature measuring devices extending into the furnace wall of the dry quenching furnace are different; the signal output end of the first temperature measuring device and the signal output end of the second temperature measuring device are respectively connected with a dry quenching furnace control system.
In the embodiment, the refractory materials forming the furnace wall of the cooling zone are a heat insulation brick 3, a clay brick 4 and a mullite brick 5 in sequence from the furnace shell to the inside of the furnace, and the length direction of the refractory bricks corresponds to the radial direction of the dry quenching furnace; the depth of the temperature measuring device A11 inserted into the furnace wall is the length of one half of the heat insulating brick 3, the depth of the temperature measuring device B12 inserted into the furnace wall is the length of one heat insulating brick 3, the depth of the temperature measuring device C13 inserted into the furnace wall is the length of one heat insulating brick 3 plus the length of one half of the clay brick 4, and the depth of the temperature measuring device D14 inserted into the furnace wall is the length of one heat insulating brick 3 plus the length of one clay brick 4.
In the embodiment, the refractory materials composing the wall of the pre-storing area are heat insulating bricks 3 and clay bricks 4 in sequence from the furnace shell to the inside of the furnace, and the length direction of the refractory bricks corresponds to the radial direction of the dry quenching furnace. The depth of the second temperature measuring device A21 inserted into the furnace wall is the length of one half of the heat insulating brick 3, the depth of the second temperature measuring device B22 inserted into the furnace wall is the length of one heat insulating brick 3, and the depth of the second temperature measuring device C23 inserted into the furnace wall is the length of one heat insulating brick 3 plus the length of one half of the clay brick 4.
The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical scheme of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.
Claims (8)
1. The temperature measurement system for the dry quenching furnace is characterized by comprising a plurality of first temperature measurement points arranged in a cooling area at the lower part of a dry quenching furnace body and a plurality of second temperature measurement points arranged in a pre-storing area at the upper part of the dry quenching furnace body; a plurality of first temperature measuring points are uniformly distributed along the circumferential direction of the dry quenching furnace body at the same height; a plurality of second temperature measuring points are uniformly distributed along the circumferential direction of the dry quenching furnace body at the same height; the first temperature measuring device is correspondingly arranged at each temperature measuring point, and the depths of the first temperature measuring devices extending into the furnace wall of the dry quenching furnace are different; each second temperature measuring point is correspondingly provided with a second temperature measuring device, and the depths of the second temperature measuring devices extending into the furnace wall of the dry quenching furnace are different; the signal output end of the first temperature measuring device and the signal output end of the second temperature measuring device are respectively connected with a dry quenching furnace control system.
2. The system for measuring temperature during drying of a dry quenching furnace according to claim 1, wherein the number of the first temperature measuring points is 3-6.
3. The temperature measurement system for dry quenching furnace baking according to claim 1, wherein the number of the second temperature measurement points is 3-6.
4. The system for measuring temperature during dry quenching furnace baking according to claim 1, wherein the first temperature measuring device and the second temperature measuring device are temperature thermocouples.
5. A system for measuring temperature during drying of a dry quenching furnace according to claim 1 or 2, wherein the depths of the adjacent 2 measuring devices extending into the wall of the dry quenching furnace are different by 150-250 mm along the same circumferential direction.
6. A system for measuring temperature during drying a dry quenching furnace according to claim 1 or 3, wherein the depths of two adjacent 2 temperature measuring devices extending into the wall of the dry quenching furnace are different by 150-250 mm along the same circumferential direction.
7. The temperature measurement system for the drying of the dry quenching furnace according to claim 1, wherein the furnace wall of the cooling area at the lower part of the dry quenching furnace body is composed of 3 layers of refractory bricks, the heat insulation bricks, the clay bricks and the mullite bricks are sequentially arranged from the furnace shell to the inner direction of the furnace, and the length direction of the refractory bricks corresponds to the radial direction of the dry quenching furnace; along the same circumferential direction, the depths of the adjacent 2 temperature measuring devices extending into the furnace wall of the dry quenching furnace differ by half the length of the refractory bricks.
8. The temperature measurement system for the dry quenching furnace according to claim 1, wherein the furnace wall of the pre-storing area at the upper part of the dry quenching furnace body consists of 2 layers of refractory bricks, the heat insulation bricks and the clay bricks are sequentially arranged from the furnace shell to the inner direction of the furnace, and the length direction of the refractory bricks corresponds to the radial direction of the dry quenching furnace; along the same circumferential direction, the depths of two adjacent 2 temperature measuring devices extending into the furnace wall of the dry quenching furnace differ by half the length of the refractory bricks.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310604380.9A CN116818117A (en) | 2023-05-26 | 2023-05-26 | Temperature measurement system used during dry quenching furnace baking |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310604380.9A CN116818117A (en) | 2023-05-26 | 2023-05-26 | Temperature measurement system used during dry quenching furnace baking |
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| Publication Number | Publication Date |
|---|---|
| CN116818117A true CN116818117A (en) | 2023-09-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310604380.9A Pending CN116818117A (en) | 2023-05-26 | 2023-05-26 | Temperature measurement system used during dry quenching furnace baking |
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|---|---|
| CN (1) | CN116818117A (en) |
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2023
- 2023-05-26 CN CN202310604380.9A patent/CN116818117A/en active Pending
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