CN212432282U - Molten iron tank liquid level detection system - Google Patents

Molten iron tank liquid level detection system Download PDF

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Publication number
CN212432282U
CN212432282U CN202020909608.7U CN202020909608U CN212432282U CN 212432282 U CN212432282 U CN 212432282U CN 202020909608 U CN202020909608 U CN 202020909608U CN 212432282 U CN212432282 U CN 212432282U
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CN
China
Prior art keywords
molten iron
liquid level
detection system
level detection
hot metal
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Expired - Fee Related
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CN202020909608.7U
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Chinese (zh)
Inventor
王灼
曹善安
邱峰
郝阳
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Shandong Laigang Yongfeng Steel and Iron Co Ltd
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Shandong Laigang Yongfeng Steel and Iron Co Ltd
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Priority to CN202020909608.7U priority Critical patent/CN212432282U/en
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Abstract

The utility model provides a liquid level detection system for a hot metal ladle, which comprises a dust hood and is arranged above a blast furnace taphole; the hot metal ladle is arranged below the blast furnace taphole; and the molten iron liquid level meter is arranged at one end of the dust hood, which is far away from the molten iron tank. Utilize the utility model discloses a hot metal bottle liquid level detection system, when the blast furnace tapping, stokehold worker need not make a round trip to walk around and observe the molten iron liquid level, and the display screen is watched to the accessible, and when liquid level detection value reachd the system setting value, the system can send the warning, and this has not only alleviateed staff intensity of labour, but also can reduce because of the liquid level observe the emergence of accidents such as the molten iron overflow that untimely causes, smoke and dust emission.

Description

Molten iron tank liquid level detection system
Technical Field
The utility model relates to the technical field of blast furnace stokehold tapping, in particular to a liquid level detection system for a hot metal ladle.
Background
Tapping at the front of the blast furnace, wherein molten iron flows into the torpedo tank, the iron is stopped being put into the torpedo tank after the molten iron reaches a certain liquid level, the torpedo tank is diverted to another torpedo tank to continue to put the iron, and the torpedo tank filled with the molten iron is driven by an external locomotive to be pulled to a corresponding station to be desulfurized and cast iron.
When tapping in front of a blast furnace, the observation of the liquid level of molten iron in a torpedo ladle requires that a stokehole worker regularly walks to the position above the ladle to observe, and tapping of a blast furnace needs to go back and forth for a plurality of times, thereby affecting the working efficiency of the stokehole worker, and easily causing accidents such as molten iron overflow, smoke and dust emission and the like once the observation is untimely.
SUMMERY OF THE UTILITY MODEL
In view of the above prior art's shortcoming, an object of the utility model is to provide a hot metal bottle liquid level detection system for it needs stokehold workman for observing to solve the hot metal bottle liquid level detection among the prior art, and work efficiency is low and appear the technical problem of accidents such as the hot metal is excessive, smoke and dust easily.
In order to realize above-mentioned purpose and other relevant purposes, the utility model provides a hot metal bottle liquid level detection system, hot metal bottle liquid level detection system includes:
the dust hood is arranged above the blast furnace taphole;
the hot metal ladle is arranged below the blast furnace taphole; and
and the molten iron liquid level meter is arranged at one end of the dust hood, which is far away from the molten iron tank.
In an alternative embodiment, the hot metal ladle comprises a torpedo ladle.
In an optional embodiment, the molten iron tank liquid level detection system further comprises a tank car, and the molten iron tank is arranged on the tank car.
In an optional embodiment, the tank car is further provided with a support frame and a tipping mechanism, and the hot metal ladle is connected with the tank car through the support frame and the tipping mechanism.
In an optional embodiment, the molten iron tank liquid level detection system further comprises a control device connected with the molten iron level meter.
In an optional embodiment, the molten iron tank liquid level detection system further comprises a display device connected with the control device.
In an optional embodiment, the molten iron tank liquid level detection system further comprises an alarm device connected with the control device.
In an alternative embodiment, the alarm device comprises an audible and visual alarm device.
In an alternative embodiment, the molten iron level gauge comprises a radar level gauge.
In an optional embodiment, the molten iron tank liquid level detection system further comprises an air supply assembly, and the air supply assembly is connected with an air inlet of the radar liquid level meter through a pipeline.
The utility model discloses a hot metal bottle liquid level detection system, through the dust cage installation molten iron level gauge in the top of hot metal bottle, during the blast furnace tapping, stokehold worker need not make a round trip to walk around and observe the molten iron liquid level, and the display screen is watched to the accessible, and when liquid level detection value reachd the system setting value, the system can send the warning, and this has alleviateed staff intensity of labour, has reduced because of the liquid level observes the emergence of accidents such as the molten iron overflow that untimely causes, smoke and dust.
Drawings
Fig. 1 shows a schematic structural diagram of the molten iron tank liquid level detection system of the present invention.
Fig. 2 is a schematic structural diagram of the hot metal ladle assembly according to the present invention.
Description of the symbols
100 tank truck
110 tank truck body
120 support frame and tipping mechanism
130 hot-metal bottle
131 tank mouth
200 blast furnace taphole
300 dust excluding hood
301 open at the top
400 molten iron level meter
500 control device
600 display device
700 alarm device
Detailed Description
The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will be readily apparent to those skilled in the art from the disclosure herein. The present invention can also be implemented or applied through other different specific embodiments, and various details in the present specification can be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
It should be noted that the drawings provided in the present embodiment are only for illustrating the basic idea of the invention in a schematic manner, and only the components related to the invention are shown in the drawings rather than being drawn according to the number, shape and size of the components in actual implementation, and the form, quantity and proportion of the components in actual implementation may be changed at will, and the layout of the components may be more complicated.
When tapping in front of a blast furnace, the observation of the liquid level of molten iron in a torpedo ladle requires that a stokehole worker regularly walks to the position above the ladle to observe, and tapping of a blast furnace needs to go back and forth for a plurality of times, thereby affecting the working efficiency of the stokehole worker, and easily causing accidents such as molten iron overflow, smoke and dust emission and the like once the observation is untimely. The utility model discloses a torpedo ladle molten iron liquid level monitoring system, dust hood in the top of molten iron jar is gone up and is installed the molten iron level gauge, and stokehold worker need not make a round trip to walk around and observe the molten iron liquid level, and the display screen is watched to the accessible, and when liquid level detection value reachs the system setting value, the system can send the warning, and this has alleviateed staff intensity of labour, has reduced because of the liquid level observe the emergence of accidents such as the molten iron is excessive, smoke and dust emission that untimely causes. Wherein, fig. 1 shows a schematic structural diagram of the molten iron tank liquid level detection system of the utility model; fig. 2 shows a schematic structural diagram of the hot metal ladle assembly of the present invention.
Referring to fig. 1 and 2, the system for detecting the liquid level of the hot metal ladle 130 of the present invention includes a dust hood 300, the hot metal ladle 130, and a hot metal level gauge 400. Specifically, the dust hood 300 is disposed above the blast furnace taphole 200, and the dust hood 300 may be connected to a fan through a dust removal pipe, for example, to effectively remove the dust pollution at the blast furnace taphole 200; the hot metal ladle 130 is arranged below the blast furnace taphole 200, the hot metal ladle 130 is a device for containing and transporting molten iron, the ladle opening 131 of the hot metal ladle 130 corresponds to the blast furnace taphole 200, the molten iron is poured into the hot metal ladle 130 through the ladle opening 131 after flowing out through the blast furnace taphole 200, the liquid level height of the molten iron needs to be detected in real time when the hot metal ladle 130 is filled with the molten iron so as to control the flow of the molten iron at the taphole, the molten iron loading capacity is increased as much as possible on the premise of ensuring safety so as to improve the utilization rate of the hot metal ladle 130, the molten iron is stopped to be put into the hot metal ladle 130 after the molten iron is put to a certain liquid level, and the hot metal ladle 130 filled with the molten iron is pulled to a corresponding station by an external locomotive for desulfurization and cast iron treatment; molten iron level gauge 400 set up in keeping away from of dust excluding hood 300 the open-top 301 of hot metal bottle 130, this open-top 301 and dust removal tube coupling will molten iron level gauge 400 set up in the open-top 301 department of hot metal bottle 130 need not additionally set up the level gauge installing support of molten iron level gauge 400, can practice thrift the cost of level gauge installing support.
Referring to fig. 1 and 2, in the present embodiment, the blast furnace may be used for smelting pig iron, for example, the blast furnace includes a furnace shell and a refractory brick lining inside the furnace shell, and a blast furnace body is divided into five parts from top to bottom, namely a furnace throat, a furnace body, a furnace waist, a furnace belly and a furnace hearth. When a blast furnace is used for iron making, iron ore, coke and a fluxing agent (limestone) for slag making are loaded from the top of the furnace, and preheated air is blown in from a tuyere located at the lower part of the furnace along the periphery of the furnace; carbon in coke (some blast furnaces also blow auxiliary fuel such as coal dust, heavy oil, natural gas and the like) at high temperature is combusted with oxygen blown into air to generate carbon monoxide and hydrogen, oxygen in iron ore is removed in the process of rising in the furnaces, iron is obtained through reduction, and smelted molten iron is discharged from a blast furnace taphole.
Referring to fig. 1 and 2, in the embodiment, in order to facilitate transportation of the hot metal ladle 130, the liquid level detection system of the hot metal ladle 130 further includes a tank truck 100 body, the hot metal ladle 130 is installed on the tank truck 100 body, the hot metal ladle 130 and the tank truck 100 body together form the tank truck 100, and the tank truck 100 moves under traction of a locomotive. Referring to fig. 1 and 2, the tank car 100 is further provided with a support frame and tipping mechanism 120, the hot metal ladle 130 is connected to the tank car 100 through the support frame and tipping mechanism 120, and the tipping mechanism can be driven by a hydraulic mechanism or a motor reducer, for example, so as to realize tilting and turning actions of the hot metal ladle 130.
Referring to fig. 1 and 2, in the embodiment, the tank car 100 may be, for example, a Torpedo car 100(Torpedo car), the hot metal ladle 130 is a Torpedo car, and the Torpedo car 100 is a large molten iron transportation device, which has the advantages of small heat loss, long heat preservation time, energy saving, etc., and can also store molten iron to coordinate the temporary unbalanced state of iron making and steel making, and at the same time, can replace a mixer furnace for steel making and a common molten iron tank car 100, and can also complete the operation processes of desulfurization, dephosphorization, etc. during the molten iron transportation process.
Referring to fig. 1 and 2, in the embodiment, the liquid level detection system of the hot metal ladle 130 further includes a control device 500 connected to the molten iron level gauge 400, wherein the control device 500 is configured to receive a detection signal of the molten iron level gauge 400, process the detection signal to obtain a molten iron level in the hot metal ladle 130, and display the molten iron level through a display device 600 to be described below for a stoker to check.
Referring to fig. 1 and 2, in the present embodiment, the liquid level detection system of the hot-metal bottle 130 further includes a display device 600, and the display device 600 is connected to the control device 500 for displaying the liquid level of the hot-metal bottle 130. The display device 600 may be, for example, a Cathode Ray Tube (CRT) display, a plasma display PDP, or a liquid crystal display LCD, and the display device 600 is designed to be installed at a viewing position in front of the furnace and has a relatively large size so as to facilitate the view of the front worker.
Referring to fig. 1 and 2, in the embodiment, the molten iron tank 130 liquid level detection system further includes an alarm device 700, the alarm device 700 is connected to the control device 500, and the alarm device 700 is used for the control device 500 to give an alarm through the alarm device 700 when the control device 500 determines that the liquid level of the molten iron tank 130 reaches a set value of the system. The alarm device 700 may be, for example, an audible and visual alarm device 700.
Referring to fig. 1 and 2, in the present embodiment, the molten iron level gauge 400 includes a radar level gauge (also referred to as a radar detector), which is required to be perpendicular to the molten iron level. The testing principle is that when the radar detector above the opening 131 of the hot metal ladle 130 continuously transmits frequency modulation continuous waves to the torpedo, the microwaves return to the radar liquid level meter after reaching the molten iron liquid level, and the speed of the microwaves is constant, so that the time of transmitting to receiving is measured, and the distance from the radar liquid level meter to the molten iron liquid level can be known. The microwaves returned to the radar level gauge are processed by the signal processing unit of the radar level gauge, and then the processed signals are transmitted to the control device 500, and the control device 500 can obtain the molten iron level height data according to a preset formula and make a judgment, and then output the molten iron level height data to the display device 600.
In an optional embodiment, the molten iron tank 130 liquid level detection system further comprises a gas supply assembly, the gas supply assembly is connected with the gas inlet of the radar liquid level meter through a pipeline, the gas supply assembly can be used for purging cooling gas to the gas inlet of the radar liquid level meter through a pipeline, and the purging cooling gas can be nitrogen gas or other inert gases.
To sum up, the utility model discloses a 130 liquid level detection systems of hot metal bottle, through installing molten iron level gauge 400 on the dust excluding hood 300 in 130 top of hot metal bottle, during the blast furnace tapping, stokehold worker need not make a round trip to walk around and observe the molten iron liquid level, and the display screen is watched to the accessible, and when liquid level detection value reachd the system setting value, the system can send the warning, and this has alleviateed staff intensity of labour, has reduced because of the liquid level observe the emergence of accidents such as the untimely molten iron that causes is excessive, smoke and dust.
In the description herein, numerous specific details are provided, such as examples of components and/or methods, to provide a thorough understanding of embodiments of the invention. One skilled in the relevant art will recognize, however, that an embodiment of the invention can be practiced without one or more of the specific details, or with other apparatus, systems, assemblies, methods, components, materials, parts, and/or the like. In other instances, well-known structures, materials, or operations are not specifically shown or described in detail to avoid obscuring aspects of embodiments of the invention.
Reference throughout this specification to "one embodiment," "an embodiment," or "a specific embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment, and not necessarily all embodiments, of the present invention. Thus, respective appearances of the phrases "in one embodiment", "in an embodiment", or "in a specific embodiment" in various places throughout this specification are not necessarily referring to the same embodiment. Furthermore, the particular features, structures, or characteristics of any specific embodiment of the present invention may be combined in any suitable manner with one or more other embodiments. It is to be understood that other variations and modifications of the embodiments of the invention described and illustrated herein are possible in light of the teachings herein and are to be considered as part of the spirit and scope of the present invention.
It will also be appreciated that one or more of the elements shown in the figures can also be implemented in a more separated or integrated manner, or even removed for inoperability in some circumstances or provided for usefulness in accordance with a particular application.
Additionally, any reference arrows in the drawings/figures should be considered only as exemplary, and not limiting, unless otherwise expressly specified. Further, as used herein, the term "or" is generally intended to mean "and/or" unless otherwise indicated. Combinations of components or steps will also be considered as being noted where terminology is foreseen as rendering the ability to separate or combine is unclear.
As used in the description herein and throughout the claims that follow, "a", "an", and "the" include plural references unless otherwise indicated. Also, as used in the description herein and throughout the claims that follow, unless otherwise indicated, the meaning of "in …" includes "in …" and "on … (on)".
The above description of illustrated embodiments of the invention, including what is described in the abstract of the specification, is not intended to be exhaustive or to limit the invention to the precise forms disclosed herein. While specific embodiments of, and examples for, the invention are described herein for illustrative purposes only, various equivalent modifications are possible within the spirit and scope of the present invention, as those skilled in the relevant art will recognize and appreciate. As noted, these modifications may be made to the present invention in light of the foregoing description of illustrated embodiments of the invention and are to be included within the spirit and scope of the present invention.
The system and method have been described herein in general terms as providing details to facilitate the understanding of the invention. Furthermore, various specific details have been given to provide a general understanding of the embodiments of the invention. One skilled in the relevant art will recognize, however, that an embodiment of the invention can be practiced without one or more of the specific details, or with other apparatus, systems, assemblies, methods, components, materials, parts, and/or the like. In other instances, well-known structures, materials, and/or operations are not specifically shown or described in detail to avoid obscuring aspects of embodiments of the invention.
Thus, although the present invention has been described herein with reference to particular embodiments thereof, freedom of modification, various changes and substitutions are intended in the foregoing disclosure, and it should be understood that in some instances some features of the present invention will be employed without a corresponding use of other features without departing from the scope and spirit of the present invention as set forth. Accordingly, many modifications may be made to adapt a particular situation or material to the essential scope and spirit of the present invention. It is intended that the invention not be limited to the particular terms used in following claims and/or to the particular embodiment disclosed as the best mode contemplated for carrying out this invention, but that the invention will include any and all embodiments and equivalents falling within the scope of the appended claims. Accordingly, the scope of the invention is to be determined solely by the appended claims.

Claims (10)

1. The utility model provides a hot metal bottle liquid level detection system which characterized in that, hot metal bottle liquid level detection system includes:
the dust hood is arranged above the blast furnace taphole;
the hot metal ladle is arranged below the blast furnace taphole; and
and the molten iron liquid level meter is arranged at one end of the dust hood, which is far away from the molten iron tank.
2. The hot-metal bottle liquid level detection system of claim 1, wherein the hot-metal bottle comprises a torpedo.
3. The molten iron tank liquid level detection system according to claim 1, further comprising a tank car, wherein the molten iron tank is installed on the tank car.
4. The molten iron tank liquid level detection system of claim 3, wherein the tank car is further provided with a support frame and a tipping mechanism, and the molten iron tank is connected with the tank car through the support frame and the tipping mechanism.
5. The molten iron tank liquid level detection system of claim 1 further comprising a control device connected to the molten iron level gauge.
6. The molten iron tank liquid level detection system according to claim 5, further comprising a display device connected to the control device.
7. The molten iron tank liquid level detection system according to claim 5, further comprising an alarm device connected to the control device.
8. The molten iron tank liquid level detection system of claim 7, wherein the alarm device comprises an audible and visual alarm device.
9. The molten iron tank level detection system according to any one of claims 1 to 8, wherein the molten iron level gauge comprises a radar level gauge.
10. The molten iron tank liquid level detection system of claim 9 further comprising an air supply assembly connected to the air inlet of the radar level gauge via a pipeline.
CN202020909608.7U 2020-05-26 2020-05-26 Molten iron tank liquid level detection system Expired - Fee Related CN212432282U (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113377047A (en) * 2021-06-09 2021-09-10 攀钢集团研究院有限公司 Control method and control system for improving full rate of molten iron tank
CN114754839A (en) * 2022-06-14 2022-07-15 河北华创测控技术有限公司 Liquid level monitoring device and system for ladle
CN117451133A (en) * 2023-12-26 2024-01-26 苏州市瑞思特智能制造有限公司 Intelligent and safe production monitoring system and method for liquid level of hot-metal ladle

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113377047A (en) * 2021-06-09 2021-09-10 攀钢集团研究院有限公司 Control method and control system for improving full rate of molten iron tank
CN114754839A (en) * 2022-06-14 2022-07-15 河北华创测控技术有限公司 Liquid level monitoring device and system for ladle
CN114754839B (en) * 2022-06-14 2022-09-02 河北华创测控技术有限公司 Liquid level monitoring device and system for ladle
CN117451133A (en) * 2023-12-26 2024-01-26 苏州市瑞思特智能制造有限公司 Intelligent and safe production monitoring system and method for liquid level of hot-metal ladle
CN117451133B (en) * 2023-12-26 2024-04-02 苏州市瑞思特智能制造有限公司 Intelligent and safe production monitoring system and method for liquid level of hot-metal ladle

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Granted publication date: 20210129