CN210176896U - Converter furnace inner condition detection equipment - Google Patents

Converter furnace inner condition detection equipment Download PDF

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Publication number
CN210176896U
CN210176896U CN201920513942.8U CN201920513942U CN210176896U CN 210176896 U CN210176896 U CN 210176896U CN 201920513942 U CN201920513942 U CN 201920513942U CN 210176896 U CN210176896 U CN 210176896U
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Prior art keywords
converter
liquid level
control device
slag liquid
thermal
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CN201920513942.8U
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薛志
郭伟达
李强笃
王忠刚
高志滨
徐增恭
沈国振
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Shandong Iron and Steel Group Co Ltd SISG
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Shandong Iron and Steel Group Co Ltd SISG
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Abstract

The application discloses equipment for detecting the condition in a converter, which comprises a thermal infrared imager, a thermal imaging unit and a control unit, wherein the thermal infrared imager is used for acquiring thermal images; the control device is connected with the thermal infrared imager and used for obtaining the flowing state of the slag liquid level and the position of the slag liquid level in the converter according to the thermal image so as to obtain the position relation between the slag liquid level and the converter mouth; and the reminding device is connected with the control device and used for sending out corresponding reminding information according to the position relation. According to the method and the device, thermal images are obtained through the thermal infrared imager, the control device obtains the flowing state of the slag liquid level and the position of the slag liquid level in the converter according to the thermal images, and then the position relation between the slag liquid level and the converter mouth is obtained, the reminding device sends out corresponding reminding information according to the obtained position relation, the detection of the position relation between the slag liquid level and the converter mouth in the converter is achieved, and then the automatic control of the converter tapping process is achieved.

Description

Converter furnace inner condition detection equipment
Technical Field
The application relates to the technical field of steel making, in particular to a device for detecting conditions in a converter.
Background
Converter steelmaking is currently the world's leading steelmaking process. In converter steelmaking, molten iron, scrap steel and the like are smelted into steel with required chemical components, and the steel has certain physical and chemical properties and mechanical properties. In the converter steelmaking process, when the composition and the temperature of molten steel in a converter reach the conditions, the molten steel in the converter enters a ladle through a converter steel outlet, the surface of the molten steel is covered with a layer of slag, slag is prevented from falling as much as possible during steel tapping, and the slag is prevented from overflowing the furnace outlet before the steel tapping.
The temperature in the converter is above 1600 ℃ in the tapping process of the converter, and due to the extremely high temperature, the general monitoring means cannot timely and accurately detect the condition in the converter, namely, the position relation between the slag and the converter mouth cannot be effectively monitored, which is a key factor restricting the automatic tapping control. At present, the detection of the position relation between the slag and the furnace mouth is lack of an effective monitoring means, effective judgment cannot be made, and actual production requirements cannot be met.
SUMMERY OF THE UTILITY MODEL
The application aims to provide equipment for detecting the internal condition of the converter so as to automatically detect the position relation between the liquid level of the slag in the converter and a converter mouth.
In order to solve the above technical problem, the present application provides a converter furnace interior condition detection device, including:
the thermal infrared imager is used for acquiring thermal images;
the control device is connected with the thermal infrared imager and used for obtaining the flowing state of the slag liquid level and the position of the slag liquid level in the converter according to the thermal image so as to obtain the position relation between the slag liquid level and the converter mouth;
and the reminding device is connected with the control device and used for sending out corresponding reminding information according to the position relation.
Optionally, the method further includes:
and the monitoring probe is connected with the control device and used for acquiring images at the furnace mouth and sending the images at the furnace mouth to the control device.
Optionally, the method further includes:
and the height measuring instrument is connected with the control device and used for measuring the distance between the slag liquid level and a preset plane and sending the distance to the control device.
Optionally, the method further includes:
and the filtering device is positioned at one end of the monitoring probe facing the furnace opening.
Optionally, an included angle between the monitoring probe and a plane where the furnace opening is located ranges from 30 ° to 70 °, inclusive.
Optionally, the method further includes:
the first port of the IFAU device is connected with the thermal infrared imager, the monitoring probe and the height measuring instrument, the second port of the IFAU device is connected with the control device and used for acquiring monitoring information in the converter and sending the monitoring information to the control device, wherein the monitoring information comprises the thermal image, the image at the converter mouth and the distance.
The application provides a condition check out test set in converter stove includes: the thermal infrared imager is used for acquiring thermal images; the control device is connected with the thermal infrared imager and used for obtaining the flowing state of the slag liquid level and the position of the slag liquid level in the converter according to the thermal image so as to obtain the position relation between the slag liquid level and the converter mouth; and the reminding device is connected with the control device and used for sending out corresponding reminding information according to the position relation. According to the method, the thermal image is obtained through the thermal infrared imager, the control device obtains the flowing state of the slag liquid level and the position of the slag liquid level in the converter according to the thermal image, the position relation between the slag liquid level and the converter mouth is obtained, the reminding device sends corresponding prompt information according to the obtained position relation, the detection of the position relation between the slag liquid level and the converter mouth in the converter is achieved, and the automatic control of the converter tapping process is achieved.
Drawings
For a clearer explanation of the embodiments or technical solutions of the prior art of the present application, the drawings needed for the description of the embodiments or prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic structural diagram of an apparatus for detecting a condition in a converter according to an embodiment of the present disclosure;
fig. 2 is another schematic structural diagram of a converter internal condition detection device provided in an embodiment of the present application.
Detailed Description
In order that those skilled in the art will better understand the disclosure, the following detailed description will be given with reference to the accompanying drawings. It is to be understood that the embodiments described are only a few embodiments of the present application and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be implemented in other ways different from the specific details set forth herein, and one skilled in the art may similarly generalize the present invention without departing from the spirit of the present invention, and therefore the present invention is not limited to the specific embodiments disclosed below.
As described in the background art, detection of the position relationship between the slag and the furnace mouth is lack of an effective monitoring means, effective judgment cannot be made, actual production requirements cannot be met, and automatic tapping control cannot be realized.
In view of the above, the present application provides a device for detecting an internal condition of a converter, please refer to fig. 1, where fig. 1 is a schematic structural diagram of the device for detecting an internal condition of a converter provided in an embodiment of the present application, and the device includes:
the thermal infrared imager 1 is used for acquiring thermal images;
specifically, the temperature of the slag liquid level in the converter furnace is very high, different from the temperature of components in the converter furnace, substances with different temperatures show different colors in the thermal image, the thermal infrared imager 1 acquires the thermal image in real time, and the control device 2 can obtain the flowing state of the slag liquid level and the position of the slag liquid level in the converter furnace according to the thermal image.
Preferably, the thermal infrared imager 1 is a far infrared thermal imager, and due to the fact that the temperature in the converter is high, the thermal image acquired by the far infrared thermal imager is clearer, so that the flowing state of the slag liquid level and the position of the slag liquid level in the converter are more accurate, and the accuracy of obtaining the position relation by the control device according to the flowing state of the slag liquid level and the position of the slag liquid level in the converter is improved.
The control device 2 is connected with the thermal infrared imager 1 and is used for obtaining the flowing state of the slag liquid level and the position of the slag liquid level in the converter according to the thermal image so as to obtain the position relation between the slag liquid level and the converter mouth;
specifically, the system software in the control device 2 obtains the flowing state of the slag liquid level and the position of the slag liquid level in the converter according to the received thermal image, and obtains the position relationship between the slag liquid level and the converter mouth. The control device 2 may be a system control cabinet (IMCU).
And the reminding device 3 is connected with the control device 2 and is used for sending out corresponding prompt information according to the position relation.
Specifically, the reminding device 3 receives the position relationship and sends out corresponding prompt information according to the position relationship, so that the detection of the position relationship between the slag liquid level and the furnace mouth is realized.
The equipment for detecting the condition in the converter furnace provided by the embodiment comprises: the thermal infrared imager 1 is used for acquiring thermal images; the control device 2 is connected with the thermal infrared imager 1 and is used for obtaining the flowing state of the slag liquid level and the position of the slag liquid level in the converter according to the thermal image so as to obtain the position relation between the slag liquid level and the converter mouth; and the reminding device 3 is connected with the control device 2 and is used for sending out corresponding prompt information according to the position relation. The device for detecting the condition in the converter in the embodiment obtains the thermal image through the thermal infrared imager 1, the control device 2 obtains the flowing state of the slag liquid level and the position of the slag liquid level in the converter according to the thermal image so as to obtain the position relation between the slag liquid level and the converter mouth, and the reminding device 3 sends out corresponding prompt information according to the obtained position relation, so that the detection of the position relation between the slag liquid level in the converter and the converter mouth is realized, and the automatic control of the converter tapping process is further realized.
Referring to fig. 2, fig. 2 is a schematic structural diagram of another converter internal condition detection apparatus provided in the embodiment of the present application.
On the basis of the above embodiment, in an embodiment of the present application, the apparatus for detecting a condition in a converter furnace further includes:
and the monitoring probe 4 is connected with the control device 2 and is used for acquiring an image at the furnace mouth and sending the image at the furnace mouth to the control device 2.
Specifically, the monitoring probe 4 acquires an image of the furnace mouth, and the control device 2 can obtain the position of the slag liquid level in the converter according to the image of the furnace mouth, that is, the position relationship between the slag liquid level and the furnace mouth can be obtained.
Further, by monitoring the images at the furnace mouth acquired by the probe 4, not only the state of the furnace mouth, for example, whether the furnace mouth is adhered with slag, but also the state of the slag, for example, the state of adhered slag, thin slag, foamed slag, etc., can be obtained.
Preferably, in an embodiment of this application, monitor 4 with the contained angle value range of the plane that the fire door was located is 30 to 70, including endpoint value, avoids monitor 4 just to the fire door, because just to the position temperature of fire door very high, causes the damage to monitor 4 easily, and the cost is promoted, and on the other hand just to the position luminance of fire door very high, and the fire door boundary position is difficult for discerning in the image of fire door department.
In this embodiment, the in-converter condition detection device monitors the condition of the slag liquid level in the converter through the thermal infrared imager 1 and the monitoring probe 4, and the control device 2 obtains the position relationship between the slag liquid level and the furnace mouth according to the thermal image obtained by the thermal infrared imager 1 and the furnace mouth image obtained by the monitoring probe 4, so that the accuracy of the obtained position relationship is improved, and the prompt information sent by the prompting device 3 is more accurate.
Further, the apparatus for detecting the condition in the converter furnace further comprises:
and the filtering device is positioned at one end of the monitoring probe 4 facing the furnace mouth. The added filter device can enable the furnace mouth image acquired by the monitoring probe 4 to be clearer, so that the accuracy of the position relation is further improved when the control device 2 obtains the position relation between the slag liquid level and the furnace mouth according to the thermal image and the furnace mouth image, and further the reminding device 3 sends the reminding information according to the position relation, so that the accuracy of the reminding information is further improved.
Further, the apparatus for detecting the condition in the converter furnace further comprises:
and the height measuring instrument 5 is connected with the control device 2 and is used for measuring the distance between the slag liquid level and a preset plane and sending the distance to the control device 2.
In this embodiment, the control device 2 comprehensively determines the position relationship between the slag liquid level and the furnace mouth according to the flowing state of the slag liquid level, the position of the slag liquid level in the converter, the image of the furnace mouth and the distance between the slag liquid level and the preset plane, so that the determination result of the position relationship is more accurate, and the reminding device 3 sends more accurate prompt information.
It should be noted that, in the present embodiment, the preset plane is not limited, and may be determined as the case may be. For example, the preset plane may be a plane on which the top of the converter is located, or a plane on which the converter mouth is located, or the like.
Specifically, the height indicator 5 may obtain the distance between the slag liquid level and the preset plane by emitting laser to the surface of the slag liquid level according to the principle of laser distance measurement, and the specific test principle is well known to those skilled in the art and will not be described in detail herein.
Further, the apparatus for detecting the condition in the converter furnace further comprises:
the monitoring system comprises an IFAU device 6, wherein a first port of the IFAU device 6 is connected with the thermal infrared imager 1, the monitoring probe 4 and the height gauge 5, a second port of the IFAU device 6 is connected with the control device 2 and is used for acquiring monitoring information in the converter and sending the monitoring information to the control device 2, and the monitoring information comprises the thermal image, the image at the converter mouth and the distance.
The IFAU device 6 is an in-situ auxiliary unit (IFAU for short), the IFAU device 6 obtains monitoring information in the converter, and then sends the monitoring information to the control device 2, so that the monitoring information is prevented from being directly sent to the control device 2 by the thermal infrared imager 1, the monitoring probe 4 and the height measuring instrument 5, the distance of a transmission line can be shortened, and the investigation time is saved when data transmission accidents occur. In addition, the IFAU device 6 (field auxiliary unit) is also used for detecting the in-furnace condition of the converter, converting and transmitting a field video signal, a network signal and a communication signal; monitoring the power control of the probe 4; temperature cooling and air source dust removal control.
The embodiments are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same or similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description.
The converter internal condition detection device provided by the application is described in detail above. The principles and embodiments of the present application are explained herein using specific examples, which are provided only to help understand the method and the core idea of the present application. It should be noted that, for those skilled in the art, it is possible to make several improvements and modifications to the present application without departing from the principle of the present application, and such improvements and modifications also fall within the scope of the claims of the present application.

Claims (6)

1. An apparatus for detecting the condition in a converter furnace, comprising:
the thermal infrared imager is used for acquiring thermal images;
the control device is connected with the thermal infrared imager and used for obtaining the flowing state of the slag liquid level and the position of the slag liquid level in the converter according to the thermal image so as to obtain the position relation between the slag liquid level and the converter mouth;
and the reminding device is connected with the control device and used for sending out corresponding reminding information according to the position relation.
2. The apparatus for detecting the internal condition of a converter according to claim 1, further comprising:
and the monitoring probe is connected with the control device and used for acquiring images at the furnace mouth and sending the images at the furnace mouth to the control device.
3. The apparatus for detecting the internal condition of a converter according to claim 2, further comprising:
and the height measuring instrument is connected with the control device and used for measuring the distance between the slag liquid level and a preset plane and sending the distance to the control device.
4. The apparatus for detecting the internal condition of a converter according to claim 2 or 3, further comprising:
and the filtering device is positioned at one end of the monitoring probe facing the furnace opening.
5. The apparatus according to claim 4, wherein the angle between the probe and the plane of the mouth ranges from 30 ° to 70 °, inclusive.
6. The apparatus for detecting the internal condition of a converter according to claim 5, further comprising:
the first port of the IFAU device is connected with the thermal infrared imager, the monitoring probe and the height measuring instrument, the second port of the IFAU device is connected with the control device and used for acquiring monitoring information in the converter and sending the monitoring information to the control device, wherein the monitoring information comprises the thermal image, the image at the converter mouth and the distance.
CN201920513942.8U 2019-04-16 2019-04-16 Converter furnace inner condition detection equipment Active CN210176896U (en)

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Application Number Priority Date Filing Date Title
CN201920513942.8U CN210176896U (en) 2019-04-16 2019-04-16 Converter furnace inner condition detection equipment

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Application Number Priority Date Filing Date Title
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109880964A (en) * 2019-04-16 2019-06-14 山东钢铁股份有限公司 State testing method and equipment in a kind of Converter
CN111476770A (en) * 2020-04-03 2020-07-31 中冶赛迪工程技术股份有限公司 Slag detection method, device, equipment and medium based on image processing

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109880964A (en) * 2019-04-16 2019-06-14 山东钢铁股份有限公司 State testing method and equipment in a kind of Converter
CN109880964B (en) * 2019-04-16 2024-08-13 山东钢铁股份有限公司 Method and equipment for detecting condition in converter
CN111476770A (en) * 2020-04-03 2020-07-31 中冶赛迪工程技术股份有限公司 Slag detection method, device, equipment and medium based on image processing
CN111476770B (en) * 2020-04-03 2023-01-31 中冶赛迪工程技术股份有限公司 Slag detection method, device, equipment and medium based on image processing

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