CN215296506U - Non-blind-area burn-through prevention detection system for blast furnace hearth - Google Patents
Non-blind-area burn-through prevention detection system for blast furnace hearth Download PDFInfo
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- CN215296506U CN215296506U CN202121464737.0U CN202121464737U CN215296506U CN 215296506 U CN215296506 U CN 215296506U CN 202121464737 U CN202121464737 U CN 202121464737U CN 215296506 U CN215296506 U CN 215296506U
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- blast furnace
- optic fibre
- signal processor
- ring
- layer
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- 238000001514 detection method Methods 0.000 title abstract description 9
- 230000002265 prevention Effects 0.000 title abstract description 5
- 239000013307 optical fiber Substances 0.000 claims abstract description 26
- 239000000835 fiber Substances 0.000 claims description 23
- 238000000034 method Methods 0.000 claims description 5
- 230000001681 protective effect Effects 0.000 claims description 2
- 238000010276 construction Methods 0.000 claims 1
- 239000003870 refractory metal Substances 0.000 claims 1
- 230000002035 prolonged effect Effects 0.000 abstract description 5
- 238000012423 maintenance Methods 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000002184 metal Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000011819 refractory material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009529 body temperature measurement Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000009970 fire resistant effect Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
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- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
- Blast Furnaces (AREA)
Abstract
The invention discloses a blast furnace hearth blind-area-free burn-through prevention detection system which is characterized by comprising linear temperature sensors, optical fibers, a protection pipe, an optical fiber containing ring building layer, a signal processor and a display, wherein the linear temperature sensors are uniformly distributed on the optical fibers, the optical fibers are buried on an outer circular ring at the outer edge of the optical fiber containing ring building layer according to layers, a plurality of layers of optical fibers are distributed from top to bottom, the protection pipe is uniformly distributed on the optical fiber circular ring, the optical fiber containing ring building layer surrounds the center line of a blast furnace from a taphole downwards to build three layers, the optical fibers transmit temperature signals sensed by a linear temperature sensor to the signal processor in a main control chamber of the blast furnace, and the temperature signals processed by the signal processor are displayed on the display, and the system has the advantages that: the temperature change condition of the blast furnace hearth is detected in an all-round way, the burning-through accident of the blast furnace hearth is prevented, the maintenance time of operators is saved, the service efficiency of the blast furnace is improved, and the service life of the blast furnace is prolonged.
Description
Technical Field
The utility model relates to a blast furnace ironmaking technical field especially relates to a blast furnace hearth does not have blind area and prevents burning through detecting system.
Background
The blast furnace hearth needs high-temperature and high-pressure production for years, the temperature of liquid slag iron in the hearth is about 1500 ℃, in long-term operation, refractory materials around the hearth are gradually eroded and thinned, and the risk of burning through the hearth is increased.
At present, a furnace hearth area generally adopts a thermocouple to monitor the temperature state of the furnace hearth, but only individual point positions can be monitored, and non-blind area monitoring cannot be realized, so that the highest temperature displayed by the thermocouple does not necessarily represent that the area is the most serious position for corrosion of the furnace hearth, limitation exists, and great risk is brought to blast furnace production.
Disclosure of Invention
The utility model provides a detection system is prevented burning through by blast furnace crucible non-blind area, there is the risk problem that the blind spot brought in order to solve monitoring crucible temperature, crucible region adopts linear temperature sensor to replace traditional thermocouple, lays the position and corrodes the most serious region for the crucible, lays the position and can finely tune according to experience and stove type in the past in the scene to the temperature that does not have the blind area is detected to the state to the blast furnace crucible.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a blast furnace hearth does not have blind area and prevents detecting system that burns out which characterized in that, includes linear temperature sensor, optic fibre, protection tube, holds the optic fibre ring and builds the layer, signal processor, display, linear temperature sensor equipartition on optic fibre, optic fibre is buried underground according to the layer and is held on the outer ring of the outer edge lower part of optic fibre ring and build the layer, from the top down distributes the multilayer optic fibre, the protection tube equipartition is on optic fibre ring, hold the optic fibre ring and build the layer from the taphole downwards around the blast furnace center line and build the three-layer, optic fibre conveys the temperature signal that line temperature sensor responded to and builds the signal processor in the blast furnace master control room on, the temperature signal that handles through signal processor shows on the display.
The linear temperature sensors are distributed on the inner ring of the optical fiber circular ring and close to one side of the masonry layer.
The protection tube is of a high-temperature-resistant metal structure.
The signal processor processes the transmitted temperature analog signal.
Compared with the prior art, the beneficial effects of the utility model are that:
1) the linear temperature sensor is adopted to replace the traditional thermocouple for temperature measurement, so that the dead-angle-free temperature detection of the blast furnace hearth is realized, the hearth burning-through accident is prevented, and the service life of the blast furnace is prolonged.
2) The temperature of the blast furnace hearth is measured in an all-round mode, a maintenance plan is better formulated, the continuous operation production is guaranteed, the working efficiency of operators is improved, and the workload of the operators is reduced.
Drawings
FIG. 1 is a schematic view of the longitudinal section structure of a blast furnace of a non-blind zone burnthrough-proof detection system of a blast furnace hearth.
FIG. 2 is a schematic view of the cross section structure of a blast furnace of the non-blind area burnthrough prevention detection system of the hearth of the blast furnace.
FIG. 3 is a flow chart of a non-blind-zone burn-through prevention detection system for a blast furnace hearth.
In the figure: 1. linear temperature sensor 2, optical fiber 3, protective tube 4, optical fiber containing ring layer 7, tap hole 8, blast furnace center line
Detailed Description
The following description of the embodiments of the present invention will be made with reference to the accompanying drawings:
as shown in figures 1 and 2, a blast furnace hearth non-blind area anti-burn-through detection system comprises a linear temperature sensor 1, an optical fiber 2, a protection tube 3, a fiber ring containing layer 4, a signal processor and a display, wherein the linear temperature sensor 1 is uniformly distributed on the optical fiber 2, the optical fiber 2 is embedded on an outer ring at the lower part of the outer edge of the fiber ring containing layer 4 according to layers, a plurality of layers of optical fibers 2 are distributed from top to bottom, the linear temperature sensor 1 is densely distributed on the optical fiber 2, the optical fiber 2 surrounds the blast furnace hearth for a plurality of circles, the temperature change from the inside of the hearth to the sensor is received by the densely distributed linear temperature sensor 1 and is displayed on the display in a centralized manner, the protection tube 3 is uniformly distributed on the ring of the optical fiber 2, the fiber ring containing layer 4 surrounds the blast furnace hearth 8 from a taphole 7 to the bottom, the optical fiber 2 builds three layers, the temperature signals sensed by the linear temperature sensor 1 are transmitted to the signal processor in a main control chamber of the blast furnace, the linear temperature sensor 1 transmits a current analog signal, and is required to be changed into a displayable digital signal through a signal processor, and the temperature signal processed by the signal processor is displayed on a display.
The linear temperature sensors 1 are distributed on the inner ring of the circular ring of the optical fiber 2 and are close to one side of the masonry layer, the inner ring side is close to the refractory material layer of the blast furnace hearth, and the monitoring is more accurate.
The protection tube 3 is a high-temperature-resistant metal structure, metal has certain hardness, and the high-temperature-resistant performance is better.
The signal processor processes the transmitted temperature analog signal.
The utility model relates to a blast furnace hearth non-blind area prevents burning through detecting system's theory of operation is: the temperature change in the blast furnace hearth is detected by the linear temperature sensor 1 instead of a thermocouple, the temperature condition of the hearth at each position is detected more comprehensively, the temperature condition is displayed on a display of a main control room after being processed by a signal processor, so that a worker can know the temperature condition in the blast furnace hearth more visually, the burning-through accident is prevented, and the service life of the blast furnace is prolonged.
The following examples are carried out on the premise of the technical solution of the present invention, and detailed embodiments and specific operation procedures are given, but the scope of the present invention is not limited to the following examples. The methods used in the following examples are conventional methods unless otherwise specified.
[ examples ] A method for producing a compound
Firstly, the masonry material with the fiber containing ring building layer 3 is manufactured and processed, the fiber containing ring building layer 3 replaces the prior ring building layer, and the optical fiber is positioned at the outer ring position of the lower part of the ring building layer.
The optical fiber 2 with the linear temperature sensor 1 is wound and installed in the optical fiber containing ring layer 3, and is wound by a circle at intervals from top to bottom, and a protection tube 4 is installed outside.
The optical fiber 1 wire is laid from the blast furnace hearth to the blast furnace main control chamber and connected to the signal processor, and the temperature analog signal is processed into a digital signal and displayed on the display.
The temperature of the hearth is detected in all directions through the linear temperature sensor 1, if the temperature of a certain position is found to have a phenomenon of being higher than normal, a maintenance department can be informed, the fire-resistant layer is reinforced through daily maintenance, the phenomenon of hearth burnthrough is prevented, the service efficiency of the blast furnace is effectively improved, and the service life of the blast furnace is prolonged.
The utility model discloses in use, the omnidirectional has detected the temperature variation condition of blast furnace hearth, has prevented the emergence of blast furnace hearth burnthrough accident, has saved operating personnel's repair time, has improved the availability factor of blast furnace, has prolonged the life of blast furnace.
Claims (4)
1. The utility model provides a blast furnace hearth does not have blind area and prevents detecting system that burns out which characterized in that, includes linear temperature sensor, optic fibre, protection tube, holds the optic fibre ring and builds the layer, signal processor, display, linear temperature sensor equipartition on optic fibre, optic fibre is buried underground according to the layer and is held on the outer ring of the outer edge lower part of optic fibre ring and build the layer, from the top down distributes the multilayer optic fibre, the protection tube equipartition is on optic fibre ring, hold the optic fibre ring and build the layer from the taphole downwards around the blast furnace center line and build the three-layer, optic fibre conveys the temperature signal that line temperature sensor responded to and builds the signal processor in the blast furnace master control room on, the temperature signal that handles through signal processor shows on the display.
2. The system according to claim 1, wherein the linear temperature sensors are distributed on the inner ring of the optical fiber ring and close to the masonry layer side.
3. The system of claim 1, wherein the protective tube is of a refractory metal construction.
4. The system of claim 1, wherein the signal processor processes the transmitted temperature analog signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121464737.0U CN215296506U (en) | 2021-06-29 | 2021-06-29 | Non-blind-area burn-through prevention detection system for blast furnace hearth |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121464737.0U CN215296506U (en) | 2021-06-29 | 2021-06-29 | Non-blind-area burn-through prevention detection system for blast furnace hearth |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215296506U true CN215296506U (en) | 2021-12-24 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121464737.0U Active CN215296506U (en) | 2021-06-29 | 2021-06-29 | Non-blind-area burn-through prevention detection system for blast furnace hearth |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215296506U (en) |
-
2021
- 2021-06-29 CN CN202121464737.0U patent/CN215296506U/en active Active
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