CN211424017U - Converter bottom blowing pipeline state monitoring system - Google Patents
Converter bottom blowing pipeline state monitoring system Download PDFInfo
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- CN211424017U CN211424017U CN201922269205.0U CN201922269205U CN211424017U CN 211424017 U CN211424017 U CN 211424017U CN 201922269205 U CN201922269205 U CN 201922269205U CN 211424017 U CN211424017 U CN 211424017U
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Abstract
The utility model belongs to the technical field of converter steelmaking, in particular to a converter bottom blowing pipeline state monitoring system, which comprises a bottom blowing main pipe and a plurality of bottom blowing branch pipes, wherein each bottom blowing branch pipe is connected with the bottom blowing main pipe, and the converter bottom blowing pipeline state monitoring system also comprises a pressure monitoring module, an audible and visual alarm module and a display module; the pressure monitoring module is used for acquiring air pressure values on the bottom blowing branch pipes; the sound and light alarm module is used for judging whether the air pressure value on each bottom blowing branch pipe exceeds the range of a preset safety value interval or not, and if the air pressure value exceeds the range of a preset safety value interval, a sound and light alarm is given out on the corresponding bottom blowing branch pipe; the display module is used for displaying the air pressure value and the alarm state of each bottom blowing branch pipe. The system has the function of automatically detecting the abnormality of the bottom blowing branch pipe and giving an alarm in time. Can avoid the blockage of the air outlet at the bottom of the furnace caused by the expansion of the air leakage point. The method can make up the situation that the air vent pipeline which can not be detected at any time and the air leakage point are small and are not easy to be found, and reduces the loss of cost and quality caused by the blockage of the bottom blowing hole to the molten steel smelted by the converter.
Description
Technical Field
The utility model belongs to the technical field of the converter steelmaking, concretely relates to converter bottom blowing pipeline state monitoring system.
Background
The good bottom blowing effect is the key of indexes of reducing T.Fe (total iron) of converter final slag, improving the terminal dephosphorization rate of the converter, reducing carbon-oxygen deposition and the like. Advanced steel mills at home and abroad pursue effective combined blowing of the whole service of the converter without sacrificing the furnace life of the converter in order to ensure the combined blowing effect of the converter. However, the production environment of the converter is complex, the bottom blowing system works continuously after the new furnace is in service and is always in a high-pressure environment, the requirement on various metal hoses in the bottom blowing system is high, and particularly, the metal hoses at the bottom of the bottom blowing system, which are used for connecting the bottom blowing branch pipes and the bottom blowing elements, are continuously under high temperature and high pressure, so that the bottom blowing system is likely to be damaged and leaked. Meanwhile, due to the cost advantage of the slag splashing technology, domestic converters basically adopt slag splashing furnace protection, but the bottom blowing hole is easily blocked after the high-melting-point furnace slag is thickened, so that the bottom blowing gas is not smooth, and the combined blowing effect is influenced. When bottom-blowing air leakage or blockage is not found in time, the accident is easy to enlarge, molten steel or slag flows backwards after the pressure of the bottom-blowing hole is relieved, and the bottom-blowing hole is completely blocked.
Therefore, under the complex environment of converter steelmaking, the phenomenon of air leakage or blockage of the combined blowing system needs to be monitored constantly, so that the expansion of accidents is avoided, and the influence on the production process is avoided.
Disclosure of Invention
The utility model aims to overcome the problem that the converter steelmaking combined blowing system is easy to leak gas or block in the prior art.
Therefore, the utility model provides a converter bottom blowing pipeline state monitoring system, which comprises a bottom blowing main pipe and a plurality of bottom blowing branch pipes, wherein each bottom blowing branch pipe is connected with the bottom blowing main pipe, and the converter bottom blowing pipeline state monitoring system also comprises a pressure monitoring module, an audible and visual alarm module and a display module;
the pressure monitoring module is used for acquiring air pressure values on the bottom blowing branch pipes;
the sound and light alarm module is used for judging whether the air pressure value on each bottom blowing branch pipe exceeds the range of a preset safety value interval or not, and if the air pressure value exceeds the range of a preset safety value interval, the sound and light alarm module gives out a sound and light alarm on the corresponding bottom blowing branch pipe;
the display module is used for displaying the air pressure value and the alarm state of each bottom blowing branch pipe.
Preferably, the pressure monitoring module comprises a plurality of pressure gauges, and each pressure gauge is respectively arranged on the outer wall of the pipeline of the bottom blowing branch pipe of each converter.
Preferably, the sound and light alarm module comprises a plurality of alarms composed of buzzers and LED lamps, each alarm is respectively arranged on the bottom blowing branch pipe of each converter, and the alarms are located in a distance range of 3m on two sides of the pressure gauge.
Preferably, the sound and light alarm module is used for judging whether the air pressure value of each bottom-blowing branch pipe in the initial stage of the converter service exceeds a preset safety value range, if the air pressure value exceeds the preset safety value range, a sound and light alarm is given out on the corresponding bottom-blowing branch pipe, and the display module also prompts that the bottom-blowing branch pipe is abnormal.
Preferably, the abnormality includes air leakage or blockage of the bottom-blowing branch pipe, if the air pressure value is lower than a preset safety value interval range, the air leakage abnormality is prompted, and if the air pressure value is higher than the preset safety value interval range, the blockage abnormality is prompted.
Preferably, the initial stage of the converter campaign is 20-30 furnaces after the furnace is newly started.
Preferably, the minimum value of the preset safety value interval range is an air pressure value when the bottom-blowing branch pipe can reach the minimum flow, and the maximum value is an air pressure value when the valve of the bottom-blowing branch pipe is fully opened and the opening degree is 100%.
Preferably, the bottom-blowing branch pipe is provided with a flow meter for monitoring the flow of the bottom-blowing branch pipe, the flow meter is connected with the sound and light alarm module, and the sound and light alarm module is used for comprehensively judging whether to alarm according to the flow value and the air pressure value of the flow meter.
Preferably, the sound and light alarm module prompts a leakage alarm if the air pressure value of the bottom blowing branch pipe is normal and the flow value is too high; if the flow value is normal and the air pressure value is low, a leakage alarm is prompted; if the flow value is normal and the air pressure value is higher, a blockage alarm is prompted.
Preferably, a manual ball valve is arranged at one end of the bottom blowing branch pipe close to the bottom blowing main pipe.
The utility model has the advantages that: the utility model provides a converter bottom blowing pipeline state monitoring system, which comprises a bottom blowing main pipe and a plurality of bottom blowing branch pipes, wherein each bottom blowing branch pipe is connected with the bottom blowing main pipe, and the converter bottom blowing pipeline state monitoring system also comprises a pressure monitoring module, an audible and visual alarm module and a display module; the pressure monitoring module is used for acquiring air pressure values on the bottom blowing branch pipes; the sound and light alarm module is used for judging whether the air pressure value on each bottom blowing branch pipe exceeds the range of a preset safety value interval or not, and if the air pressure value exceeds the range of a preset safety value interval, a sound and light alarm is given out on the corresponding bottom blowing branch pipe; the display module is used for displaying the air pressure value and the alarm state of each bottom blowing branch pipe. The system has the function of automatically detecting the abnormality of the bottom blowing branch pipe and giving an alarm in time. Can avoid the blockage of the air outlet at the bottom of the furnace caused by the expansion of the air leakage point. The method can make up the situation that the air vent pipeline which can not be detected at any time and the air leakage point are small and are not easy to be found, and reduces the loss of cost and quality caused by the blockage of the bottom blowing hole to the molten steel smelted by the converter.
The present invention will be described in further detail with reference to the accompanying drawings.
Drawings
FIG. 1 is a schematic view of the structural principle of a system for monitoring the status of a bottom blowing duct of a converter.
Description of reference numerals: the device comprises a manual ball valve 1, a flowmeter 2, a regulating valve 3, a pressure gauge 4, an alarm 5, a bottom blowing branch pipe 6 and a bottom blowing main pipe 7.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, are not to be construed as limiting the present invention.
The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature; in the description of the present invention, "a plurality" means two or more unless otherwise specified.
The embodiment of the utility model provides a converter bottom blowing pipeline state monitoring system, as shown in figure 1, including bottom blowing house steward 7 and a plurality of bottom blowing branch pipes 6, each bottom blowing branch pipe 6 all with bottom blowing house steward 7 is connected, still include pressure monitoring module, audible and visual alarm module and display module;
the pressure monitoring module is used for acquiring air pressure values on the bottom blowing branch pipes 6;
the sound and light alarm module is used for judging whether the air pressure value on each bottom blowing branch pipe 6 exceeds the range of a preset safety value interval or not, and if the air pressure value exceeds the range of a preset safety value interval, a sound and light alarm is given out on the corresponding bottom blowing branch pipe 6;
the display module is used for displaying the air pressure value and the alarm state of each bottom blowing branch pipe 6.
The bottom blowing main pipe 7 of the converter is connected with high-pressure gas, then the high-pressure gas is introduced into each bottom blowing branch pipe 6, the bottom blowing branch pipes are provided with regulating valves 3 and alarms 5, each bottom blowing branch pipe 6 corresponds to one air brick respectively, and finally the air bricks reach the inside of the converter for combined blowing. Install pressure measurement and audible and visual alarm device promptly siren 5 on every bottom-blowing branch pipe 6 of converter, pressure measurement gathers the atmospheric pressure value on corresponding bottom-blowing branch pipe 6, audible and visual alarm device is connected with the pressure measurement on same bottom-blowing branch pipe 6 electricity, the atmospheric pressure value that measures through this pressure measurement device judges whether this bottom-blowing branch pipe 6 exceeds standard, if exceed standard then send sound and bright warning, the unusual warning suggestion and atmospheric pressure value appear in the bottom-blowing branch pipe 6 that shows the staff, the suggestion staff should bottom-blowing branch pipe 6 take place to unusually need overhaul. The staff finds near corresponding bottom-blowing branch pipe 6 according to the alarm information of the display module, checks whether the sound-light alarm device on the bottom-blowing branch pipe 6 gives an alarm or not, and checks the air pressure value of the pressure detection device. If the alarm is given and the air pressure value exceeds the range of the preset safety value interval, the bottom blowing branch pipe 6 is abnormal; if no alarm is given, but the air pressure value is abnormal, the bottom blowing branch pipe 6 is also abnormal; if the alarm is not given and the air pressure value is normal, the display module may have a problem and be subjected to further overhaul investigation.
Preferably, the pressure monitoring module comprises a plurality of pressure gauges 4, and each pressure gauge 4 is respectively arranged on the outer wall of the pipeline of the bottom blowing branch pipe 6 of each converter. As shown in FIG. 1, the pressure gauge 4 is installed on the outer wall of the pipe of the bottom-blowing branch pipe 6, so that the pressure of the bottom-blowing branch pipe 6 can be conveniently checked by the operator at any time.
Preferably, the sound and light alarm module comprises a plurality of alarms 5 consisting of buzzers and LED lamps, each alarm 5 is respectively arranged on a bottom blowing branch pipe 6 of each converter, and the alarms 5 are positioned in a distance range of 3m at two sides of the pressure gauge 4. Therefore, the alarm 5 and the pressure gauge 4 are installed together, so that the conditions of the alarm and the pressure gauge are convenient to observe simultaneously, and whether the bottom-blowing branch pipe 6 is really blocked or leaks can be judged quickly. In addition, the alarm sound of the buzzer and the flashing alarm of the LED lamp help the worker to quickly locate which of the bottom-blowing branch pipes 6 is out of order.
In a preferable scheme, the sound and light alarm module is used for judging whether the air pressure value of each bottom-blowing branch pipe 6 in the initial stage of the converter service exceeds a preset safety value interval range, if the air pressure value exceeds the preset safety value interval range, a sound and light alarm is given out on the corresponding bottom-blowing branch pipe 6, and the display module also prompts that the bottom-blowing branch pipe 6 is abnormal. Therefore, at the initial stage of the converter service, a pressure normal interval, namely a preset safety value interval range, is set, when the pressure value acquired by the pressure detection data exceeds the interval range, the converter operation picture pops up a warning prompt of air leakage or blockage of a bottom blowing system, and meanwhile, an audible and visual alarm device on a converter bottom blowing valve chamber or a bottom blowing branch pipe is sounded. In addition, the detection is started before the converter starts to produce, so that the problem that the fault is discovered after the production is started can be avoided.
Preferably, the abnormality includes air leakage or blockage of the bottom-blowing branch pipe 6, if the air pressure value is lower than a preset safety value interval range, the abnormality of air leakage is prompted, and if the air pressure value is higher than the preset safety value interval range, the abnormality of blockage is prompted. When the air leakage is abnormal, the sound and light alarm module has low alarm sound and is bright and dim; when the blockage is abnormal, the sound and light alarm module has sharp alarm sound and is bright and bright.
In a preferable scheme, the initial stage of the converter campaign is 20-30 furnaces after a new furnace is started. In the 20-30 furnace, the air pressure of the bottom blowing main pipe 7 is relatively supplied stably, and the accuracy of measuring the air pressure value of each bottom blowing branch pipe 6 is higher, so that the air pressure fluctuation generated by the air pressure fluctuation of the air pressure source is reduced.
In a preferred embodiment, the minimum value of the range of the preset safety value is an air pressure value at which the minimum flow rate of the bottom-blowing branch pipe can be achieved, and the maximum value is an air pressure value at which the valve of the bottom-blowing branch pipe is fully opened and the opening degree of the valve is 100%. The range may be set to any smaller range between the minimum value and the maximum value described above, so as to improve the safety of the converter as a whole.
In the preferable scheme, the bottom blowing branch pipe 6 is provided with a flow meter 2 for monitoring the flow of the bottom blowing branch pipe 6, the flow meter 2 is connected with the sound and light alarm module, and the sound and light alarm module is used for comprehensively judging whether to alarm according to the flow value and the air pressure value. Specifically, the sound and light alarm module prompts a leakage alarm if the air pressure value of the bottom blowing branch pipe 6 is normal and the flow value is too high; if the flow value is normal and the air pressure value is low, a leakage alarm is prompted; if the flow value is normal and the air pressure value is higher, a blockage alarm is prompted.
Preferably, a manual ball valve 1 is arranged at one end of the bottom blowing branch pipe 6 close to the bottom blowing main pipe 7. Therefore, after a certain bottom-blowing branch pipe 6 gives an alarm, the staff close the airflow on the bottom-blowing branch pipe 6 through the manual ball valve 1 at the first time, and the bottom-blowing branch pipe on other roads can be guaranteed to be overhauled under the condition that the bottom-blowing branch pipe normally works, so that the production benefit is improved.
The utility model has the advantages that: the utility model provides a converter bottom blowing pipeline state monitoring system, which comprises a bottom blowing main pipe and a plurality of bottom blowing branch pipes, wherein each bottom blowing branch pipe is connected with the bottom blowing main pipe, and the converter bottom blowing pipeline state monitoring system also comprises a pressure monitoring module, an audible and visual alarm module and a display module; the pressure monitoring module is used for acquiring air pressure values on the bottom blowing branch pipes; the sound and light alarm module is used for judging whether the air pressure value on each bottom blowing branch pipe exceeds the range of a preset safety value interval or not, and if the air pressure value exceeds the range of a preset safety value interval, a sound and light alarm is given out on the corresponding bottom blowing branch pipe; the display module is used for displaying the air pressure value and the alarm state of each bottom blowing branch pipe. The system has the function of automatically detecting the abnormality of the bottom blowing branch pipe and giving an alarm in time. Can avoid the blockage of the air outlet at the bottom of the furnace caused by the expansion of the air leakage point. The method can make up the situation that the air vent pipeline which can not be detected at any time and the air leakage point are small and are not easy to be found, and reduces the loss of cost and quality caused by the blockage of the bottom blowing hole to the molten steel smelted by the converter.
The above illustration is merely an illustration of the present invention, and does not limit the scope of the present invention, and all designs identical or similar to the present invention are within the scope of the present invention.
Claims (10)
1. The utility model provides a converter bottom-blowing pipeline condition monitoring system, includes bottom-blowing house steward and a plurality of bottom-blowing branch pipes, each bottom-blowing branch pipe all with bottom-blowing house steward connects its characterized in that: the device also comprises a pressure monitoring module, an audible and visual alarm module and a display module;
the pressure monitoring module is used for acquiring air pressure values on the bottom blowing branch pipes;
the sound and light alarm module is used for judging whether the air pressure value on each bottom blowing branch pipe exceeds the range of a preset safety value interval or not, and if the air pressure value exceeds the range of a preset safety value interval, the sound and light alarm module gives out a sound and light alarm on the corresponding bottom blowing branch pipe;
the display module is used for displaying the air pressure value and the alarm state of each bottom blowing branch pipe.
2. The system for monitoring the status of the bottom-blowing duct of the converter according to claim 1, characterized in that: the pressure monitoring module comprises a plurality of pressure gauges, and each pressure gauge is arranged on the outer wall of the pipeline of the bottom blowing branch pipe of each converter.
3. The system for monitoring the status of the bottom-blowing duct of the converter according to claim 2, characterized in that: the sound and light alarm module comprises a plurality of alarms composed of buzzers and LED lamps, the alarms are respectively arranged on the bottom blowing branch pipe of each converter, and the alarms are located in the distance range of 3m between the two sides of the pressure gauge.
4. The system for monitoring the status of the bottom-blowing duct of the converter according to claim 1, characterized in that: the sound and light alarm module is used for judging whether the air pressure value of each bottom-blowing branch pipe at the initial stage of the converter service exceeds the range of a preset safety value interval or not, if the air pressure value exceeds the range of a preset safety value interval, a sound and light alarm is given out on the corresponding bottom-blowing branch pipe, and the display module also prompts that the bottom-blowing branch pipe is abnormal.
5. The system for monitoring the status of the bottom-blowing duct of the converter according to claim 4, wherein: the abnormity comprises air leakage or blockage of the bottom blowing branch pipe, if the air pressure value is lower than the range of the preset safety value interval, the abnormity of air leakage is prompted, and if the air pressure value is higher than the range of the preset safety value interval, the abnormity of blockage is prompted.
6. The system for monitoring the status of the bottom-blowing duct of the converter according to claim 4, wherein: the initial stage of the converter campaign is 20-30 furnaces after the furnace is started up.
7. The system for monitoring the status of the bottom-blowing duct of the converter according to claim 1, characterized in that: the minimum value of the range of the preset safety value interval is an air pressure value when the bottom-blowing branch pipe can reach the minimum flow, and the maximum value is an air pressure value when the valve of the bottom-blowing branch pipe is fully opened and the opening degree is 100%.
8. The system for monitoring the status of the bottom-blowing duct of the converter according to claim 7, wherein: the bottom blowing branch pipe is provided with a flowmeter used for monitoring the flow of the bottom blowing branch pipe, the flowmeter is connected with the acousto-optic alarm module, and the acousto-optic alarm module is used for comprehensively judging whether to alarm or not according to the flow value and the air pressure value of the flowmeter.
9. The system for monitoring the status of the bottom-blowing duct of the converter according to claim 8, wherein: the sound and light alarm module judges that if the air pressure value of the bottom blowing branch pipe is normal and the flow value is too high, a leakage alarm is prompted; if the flow value is normal and the air pressure value is low, a leakage alarm is prompted; if the flow value is normal and the air pressure value is higher, a blockage alarm is prompted.
10. The system for monitoring the status of the bottom-blowing duct of the converter according to claim 1, characterized in that: and a manual ball valve is arranged at one end of the bottom blowing branch pipe close to the bottom blowing main pipe.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922269205.0U CN211424017U (en) | 2019-12-17 | 2019-12-17 | Converter bottom blowing pipeline state monitoring system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201922269205.0U CN211424017U (en) | 2019-12-17 | 2019-12-17 | Converter bottom blowing pipeline state monitoring system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110878915A (en) * | 2019-12-17 | 2020-03-13 | 中冶南方工程技术有限公司 | Converter bottom blowing pipeline state monitoring system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110878915A (en) * | 2019-12-17 | 2020-03-13 | 中冶南方工程技术有限公司 | Converter bottom blowing pipeline state monitoring system |
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