CN215263238U - Sensor for detecting content of non-metallic slag in smelting furnace and sensing device thereof - Google Patents
Sensor for detecting content of non-metallic slag in smelting furnace and sensing device thereof Download PDFInfo
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- CN215263238U CN215263238U CN202121510366.5U CN202121510366U CN215263238U CN 215263238 U CN215263238 U CN 215263238U CN 202121510366 U CN202121510366 U CN 202121510366U CN 215263238 U CN215263238 U CN 215263238U
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Abstract
The utility model relates to a sensor and sensing device for detecting nonmetal slag content in smelting pot, the invention core lies in, it does not connect signal detection unit 10 and signal processing unit 30 through mechanical means such as wire, contact pin with signal transmission, but through the electromagnetic coupling mode in order to reach the purpose of signal transmission. The electromagnetic coupling wireless connection mode has the advantages that firstly, the service life is longer, the phenomena of system missing report, false report and the like are avoided to a great extent, and the detection precision and the stability are higher; secondly, as long as first induction coil 21, induction core 22 and second induction coil 23 are close to can reach the electromagnetic coupling effect, realize the function of conveying the signal, reduced the requirement to inserting degree of depth, insertion accuracy, the automation equipment operation such as accessible manipulator accomplishes, has not only reduced the cost of labor, has got rid of the potential safety hazard, still to the mill less humanization, unmanned requirement improvement, satisfy the automatic demand of mill completely.
Description
Technical Field
The utility model relates to a metallurgical industry slag content detection area especially relates to a sensor and sensing device for detecting nonmetal slag content in smelting pot.
Background
It is known that a series of non-metallic slag is generated in the metal smelting process and suspended above liquid metal, which seriously affects the quality and efficiency of the smelted metal. Therefore, workers desire to improve the purity of liquid metal in metal smelting processes to improve the quality and utilization of the product, and particularly, to discard the final liquid metal solution with a high non-metallic slag content during the transfer of the liquid metal from one metallurgical vessel to another. However, discarding the final liquid metal solution with a large content of non-metallic slag will cause waste of liquid metal and increase the smelting cost.
It is then an important issue to be able to strike a maximum balance between quality and cost when discarding the final liquid metal solution. Therefore, there is a need in the industry for a device for detecting the content of non-metallic slag in liquid metal, which checks the content of non-metallic slag in the liquid metal solution, especially in the final liquid metal solution, and immediately terminates the transfer of the liquid metal solution when the content exceeds a permissible value, and discards the final liquid metal solution whose content exceeds the permissible value.
Most of the existing detection devices for detecting the content of the nonmetallic slag in the liquid metal solution utilize different conductivity properties of the liquid metal and the nonmetallic slag, and a sensor is arranged at the outlet of the liquid metal of a metallurgical container to detect the content of the nonmetallic slag in the liquid metal injection flow. The basic detection principle and the technical effect of the sensor are nearly mature, but the indexes of the sensor in the traditional mechanical connection modes such as a lead, a contact pin and the like, such as service life, detection precision, stability, automation degree and the like are unsatisfactory, and the following points are provided for the reason:
1. in the metallurgical industry, the working environment of the sensor is severe, (usually, the sensor is arranged near molten metal, the ambient temperature of the sensor can reach 800 ℃, when the molten metal is subjected to vacuum deoxidation and enters a VD furnace, the ambient temperature of the whole sensor is also as high as 600 ℃, and strong corrosive gas is filled in the air of a metallurgical plant), the sensor in the traditional mechanical connection modes such as a wire contact pin and the like is easy to lose efficacy due to the influence of high temperature, corrosion, oxidation and the like, the service life is less than 300 heats, when the sensor loses efficacy due to the reasons, the phenomena of system missing report and false report are easy to cause, the detection precision and stability are not high, and the industrial field automatic production is seriously influenced;
2. the sensor of mechanical connection methods such as traditional wire contact pin requires highly to depth of insertion, insertion accuracy etc. and degree of automation is low, with operating personnel direct exposure in abominable operational environment, not only increases the cost of labor, has still caused the potential safety hazard.
Therefore, how to improve the connection mode of the existing sensor and improve at least one index such as service life, detection precision, stability and automation degree is a technical problem to be solved urgently by the sensor in the metallurgical industry.
SUMMERY OF THE UTILITY MODEL
In order to improve one or more technical problems that the service life, the detection precision, the stability and the automation degree of the existing sensor are not high, the utility model provides a sensor for detecting the content of the nonmetallic slag in a smelting furnace, which comprises a signal detection unit 10, a signal transmission unit 20 and a signal processing unit 30 which are connected in sequence; the signal transmission unit 20 includes a first induction coil 21, an induction core 22, and a second induction coil 23;
the first induction coil 21 is connected with the signal detection unit 10;
the second induction coil 23 is connected with the signal processing unit 30;
the induction core 22 is configured to couple the first induction coil 21 and the second induction coil 23 by signals to transmit the signals detected by the signal detection unit 10 to the signal processing unit 30.
Further, the signal transmission unit 20 further includes a connection body 24 and a connection sub-body 25;
the connecting body 24 is provided with a through hole 26; the first induction coil 21 is arranged in the through hole 26;
the inductive magnetic core 22 is arranged on the connector body 25, and the second inductive coil 23 is wound around the inductive magnetic core 22;
the induction magnetic core 22 can be pulled out or inserted into the through hole 26; when the induction core 22 is inserted into the through hole 26, the first induction coil 21 is wound around the induction core 22.
Further, the signal transmission unit further comprises a connection body and a connection sub-body;
the connecting body is provided with the induction magnetic core, and the first induction coil is wound on the induction magnetic core;
the connecting sub-body is provided with a through hole; the second induction coil is arranged in the through hole;
the induction magnetic core can be pulled out or inserted into the through hole; when the induction magnetic core is inserted into the through hole, the second induction coil is wound on the induction magnetic core.
Further, the number of the first induction coil 21, the induction core 22, and the second induction coil 23 is the same as the number of the signal detection units 10, and the number of the through holes 26 is greater than or equal to the number of the signal detection units 10.
Further, the connecting body 24 is provided with a positioning hole 27 for fixing the connecting body 24 to the furnace.
Further, the signal transmission unit 20 further includes a housing 28 disposed outside the first induction coil 21 or/and the second induction coil 23.
Further, the housing 28 is made of 316L stainless steel.
On the other hand, the utility model also provides a sensing device for detecting the content of the nonmetallic slag in the smelting furnace, which comprises the arbitrary sensor and the controller;
the controller is connected with the sensor and used for receiving the content of the nonmetallic slag and sending out a control signal according to the content of the nonmetallic slag.
Further, the controller sends out a control signal according to the content of the nonmetallic slag, the control signal comprises a step of judging whether the content of the nonmetallic slag is larger than a first preset threshold value, and when the content of the nonmetallic slag is larger than the first preset threshold value, the control signal that the content of the nonmetallic slag exceeds the standard is sent out.
Further, the controller sends out a control signal according to the content of the nonmetallic slag, and also comprises a step of judging whether the content of the nonmetallic slag is greater than a second preset threshold, and when the content of the nonmetallic slag is greater than the second preset threshold, a warning signal that the content of the nonmetallic slag is about to exceed the standard is sent out, wherein the first preset threshold is greater than the second preset threshold.
The utility model provides a sensor and sensing device for detecting nonmetal slag content in smelting pot compares in traditional sensor's the biggest difference lie in, it does not connect signal detection unit 10 and signal processing unit 30 with the transfer signal through mechanical means such as wire, contact pin, but is connected with signal detection unit 10 through first induction coil 21, second induction coil 23 is connected with signal processing unit 30 to and the two purpose in order to reach transfer signal of induction core 22 signal coupling. Compared with the traditional mechanical connection mode, the electromagnetic coupling wireless connection mode (taking application to detection of the content of slag in a melting furnace as an example) has the advantages that firstly, other materials which are easy to corrode, oxidize and resist high temperature, such as wire contact pins, are avoided, the service life of the electromagnetic coupling wireless connection mode is longer, the service life of the electromagnetic coupling wireless connection mode is far longer than that of a traditional sensor, the service life of the electromagnetic coupling wireless connection mode is less than 300 times, phenomena of system missing report, false report and the like are avoided to a great extent, and the detection precision and the stability are higher; secondly, as long as first induction coil 21, induction core 22 and second induction coil 23 are close to can reach the electromagnetic coupling effect, realize the function of conveying the signal, have reduced the requirement to inserting degree of depth, insertion accuracy, and the automation equipment operation such as accessible manipulator accomplishes, has not only reduced the cost of labor, has got rid of the potential safety hazard, still to national industry 4.0 overall arrangement, the factory is few humanized, unmanned requirement is improved, satisfies factory automation demand completely.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the sensor of the present invention;
FIG. 2 is a top view of one embodiment of a connecting body of the sensor of the present invention;
FIG. 3 is a top view of one embodiment of a connector body of the sensor of the present invention;
fig. 4 is a schematic structural diagram of a subunit of an embodiment of the signal transmission unit of the sensor of the present invention.
Detailed Description
As shown in fig. 1, the utility model provides a sensor for detecting nonmetal slag content in smelting pot, including signal detection unit 10, signal transmission unit 20 and the signal processing unit 30 that connect gradually, its key lies in, signal transmission unit 20, including first induction coil 21, induction core 22 and second induction coil 23. Wherein, the first induction coil 21 is connected with the signal detection unit 10; a second induction coil 23 connected to the signal processing unit 30; and an induction core 22 for signal-coupling the first induction coil 21 and the second induction coil 23 to transmit the signal detected by the signal detection unit 10 to the signal processing unit 30.
Specifically, the signal detection unit 10 is an optional but not limited sensor detection coil, is connected with the first induction coil 21 through a wire to form a closed loop, is arranged at a liquid metal outlet of the melting furnace, monitors the content of non-metal slag in the liquid metal injection flow in real time during the transfer process of the liquid metal in the melting furnace, is coupled and fed back to the second induction coil 23 through the induction magnetic core 22, and is transmitted to the signal processing unit 30 through the second induction coil 23, the signal processing unit 30 is an optional but not limited detection instrument, and is transmitted to an upper computer or a handheld terminal in a wired or wireless mode for an operator to consider, and when the content of the non-metal slag in the liquid metal exceeds an allowable value, the transfer of the liquid solution in the melting furnace is stopped. More specifically, the signal detection unit 10 and the signal transmission unit 20 are made of high temperature resistant cables, which are optionally, but not limited to, inorganic mineral materials, so as to further improve the high temperature resistance and corrosion resistance of the sensor.
In this embodiment, the greatest difference between the sensor of the present invention and the conventional sensor is that the sensor does not connect the signal detection unit 10 and the signal processing unit 30 through a wire, a pin, etc. mechanically to transmit signals, but connects the signal detection unit 10 through the first induction coil 21, connects the second induction coil 23 with the signal processing unit 30, and couples the induction core 22 with the signal processing unit to transmit signals. Compared with the traditional mechanical connection mode, the electromagnetic coupling wireless connection mode (taking application to detection of the content of slag in a melting furnace as an example) has the advantages that firstly, other materials which are easy to corrode, oxidize and resist high temperature, such as wire contact pins, are avoided, the service life of the electromagnetic coupling wireless connection mode is longer, the service life of the electromagnetic coupling wireless connection mode is far longer than that of a traditional sensor, the service life of the electromagnetic coupling wireless connection mode is less than 300 times, phenomena of system missing report, false report and the like are avoided to a great extent, and the detection precision and the stability are higher; secondly, as long as first induction coil 21, induction core 22 and second induction coil 23 are close to can reach the electromagnetic coupling effect, realize the function of conveying the signal, have reduced the requirement to inserting degree of depth, insertion accuracy, and the automation equipment operation such as accessible manipulator accomplishes, has not only reduced the cost of labor, has got rid of the potential safety hazard, still to national industry 4.0 overall arrangement, the factory is few humanized, unmanned requirement is improved, satisfies factory automation demand completely.
More specifically, as shown in fig. 2 to 4, the signal transmission unit 20 further includes a connection body 24 and a connection sub-body 25. Wherein, the connecting body 24 is provided with a through hole 26; a first induction coil 21 disposed in the through hole 26; the connecting sub-body 25 is provided with an induction magnetic core 22, the second induction coil 23 is wound around the induction magnetic core 22, and a positioning pin 29 is further arranged; an induction core 22 that can be pulled out of or inserted into the through hole 26 (shown in fig. 4); when the induction core 22 is inserted into the through hole 26, the first induction coil 21 is wound around the induction core 22.
In this embodiment, a specific layout structure of the signal transmission unit 20 is given, and as for a single structure of fig. 4, it adopts a structure similar to a socket and a plug, and the first induction coil 21, the induction core 22 and the second induction coil 23 are provided, so that the induction core 22 can be conveniently pulled out and inserted, and when the content of the non-metallic slag does not need to be detected, the connector body 25 (the movable end) is directly pulled out of the through hole 26 of the connector body 24 (the fixed end), i.e. the signal transmission is disconnected; when the content of the non-metallic slag needs to be detected, the connector body 25 (movable end) is directly inserted into the through hole 26 of the connector body 24 (fixed end) and is connected with signal transmission. This structure easy operation is convenient, can not only improve operating personnel's operating efficiency, can further improve the degree of automation of this sensor moreover, accomplishes through equipment direct operation such as manipulators.
It should be noted that fig. 2-4 illustrate an embodiment of the signal transmission unit, and the layout structure is not limited thereto. For example, the connection body and the connection sub-body of the signal transmission unit may be further disposed in opposite directions, the fixed end is the connection body including the first induction coil and the induction core, and the movable end is the connection sub-body including the through hole and the second induction coil, that is: the connecting body is provided with an induction magnetic core, and the first induction coil is wound on the induction magnetic core; the connecting sub-body is provided with a through hole; the second induction coil is arranged in the through hole; the induction magnetic core can be pulled out or inserted into the through hole; when the induction core is inserted into the through hole, the second induction coil is wound around the induction core.
More specifically, when detecting the content of the non-metallic slag in the furnace, one or more sensors may be provided, and the sensors may optionally, but not exclusively, include one or more signal detection units 10 equipped with a corresponding number of first induction coils 21, induction cores 22, and second induction coils 23. However, as shown in fig. 2, the number of the through holes 26 is not limited to be larger than or equal to that of the signal detection unit 10, that is, the through holes 26 correspond to a group of the first induction coil 21, the induction core 22, and the second induction coil 23, and the through holes 26 may be independently arranged in a one-to-one correspondence manner, or may be redundantly arranged, so as to prevent the work of the entire sensor from being affected when one through hole 26 is damaged, or other through holes 26 may be used to complete the work.
More specifically, as shown in fig. 2, the connecting body 24 is further provided with a positioning hole 27 for fixing the connecting body 24 on the melting furnace, so as to reduce the displacement of the connecting body 24, and further facilitate an operator or a manipulator to align the connecting sub-body 25 with the connecting body 24, thereby improving the working stability of the whole sensor. More specifically, the signal transmission unit 20 further includes a housing 28 disposed outside the first induction coil 21 or/and the second induction coil 23, so as to encapsulate the first induction coil 21 and the second induction coil 23 in a corrosion-resistant and high-temperature-resistant material, thereby further improving the high-temperature resistance and corrosion-resistant performance of the sensor. More specifically, the housing 28 may be, but is not limited to being, 316L stainless steel.
The utility model also provides a sensing device for detecting nonmetal slag content in the smelting furnace, including above-mentioned arbitrary sensor and controller. The controller is connected with the sensor and used for receiving the content of the nonmetallic slag detected by the sensor and sending a control signal according to the content of the nonmetallic slag. Specifically, the controller may optionally, but not exclusively, send a control signal indicating that the content of the nonmetallic slag exceeds a first preset threshold. More specifically, the controller may optionally but not limited to send a control signal for reducing the transfer rate of the liquid metal when the content of the non-metallic slag exceeds a second preset threshold (the first preset threshold is greater than the second preset threshold), that is, when the content of the non-metallic slag is already high but does not reach an allowable value, an early warning signal is sent in advance to remind an operator to slow down the transfer rate (step on a brake), so as to avoid that the operation is not timely when the content of the non-metallic slag exceeds the allowable value. More specifically, the control signal may be, but not limited to, a red light, a light flashing, a sound, or a control signal for stopping the transfer of the liquid metal.
The above sensing device is created based on the above sensor, and its technical functions and advantages are not described herein again, and various technical features of the above embodiments may be arbitrarily combined, and for brevity of description, all possible combinations of the technical features in the above embodiments are not described, however, as long as there is no contradiction between the combinations of the technical features, the combination should be considered as being within the scope of the description in this specification.
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (10)
1. A sensor for detecting the content of nonmetallic slag in a smelting furnace comprises a signal detection unit (10), a signal transmission unit (20) and a signal processing unit (30) which are connected in sequence; characterized in that the signal transmission unit (20) comprises a first induction coil (21), an induction core (22) and a second induction coil (23);
the first induction coil (21) is connected with the signal detection unit (10);
the second induction coil (23) is connected with the signal processing unit (30);
the induction core (22) is used for signal coupling the first induction coil (21) and the second induction coil (23) so as to transmit the signal detected by the signal detection unit (10) to the signal processing unit (30).
2. The sensor according to claim 1, characterized in that the signal transmission unit (20) further comprises a connection body (24) and a connection sub-body (25);
the connecting body (24) is provided with a through hole (26); the first induction coil (21) disposed within the through-hole (26);
the inductive magnetic core (22) is arranged on the connecting sub-body (25), and the second inductive coil (23) is wound on the inductive magnetic core (22);
the induction magnetic core (22) can be pulled out or inserted into the through hole (26); when the induction magnetic core (22) is inserted into the through hole (26), the first induction coil (21) is wound around the induction magnetic core (22).
3. The sensor of claim 1, wherein the signal transmission unit further comprises a connection body and a connection sub-body;
the connecting body is provided with the induction magnetic core, and the first induction coil is wound on the induction magnetic core;
the connecting sub-body is provided with a through hole; the second induction coil is arranged in the through hole;
the induction magnetic core can be pulled out or inserted into the through hole; when the induction magnetic core is inserted into the through hole, the second induction coil is wound on the induction magnetic core.
4. The sensor according to any one of claims 2 or 3, wherein the number of the first induction coil (21), the induction core (22) and the second induction coil (23) is the same as the number of the signal detection units (10), and the number of the through holes (26) is greater than or equal to the number of the signal detection units (10).
5. A sensor according to any one of claims 2 or 3, characterized in that the connecting body (24) is further provided with positioning holes (27) for fixing the connecting body (24) to the furnace.
6. Sensor according to claim 1, characterized in that the signal transmission unit (20) further comprises a housing (28) arranged outside the first induction coil (21) or/and the second induction coil (23).
7. The sensor of claim 6, wherein the housing (28) is 316L stainless steel.
8. A sensor apparatus for sensing the content of non-metallic slag in a furnace, comprising a sensor and controller according to any one of claims 1 to 7;
the controller is connected with the sensor and used for receiving the content of the nonmetallic slag and sending out a control signal according to the content of the nonmetallic slag.
9. The sensing device of claim 8, wherein the controller sends the control signal according to the content of the nonmetallic slag, and the control signal comprises a step of judging whether the content of the nonmetallic slag is greater than a first preset threshold value, and a step of sending the control signal that the content of the nonmetallic slag exceeds the standard when the content of the nonmetallic slag is greater than the first preset threshold value.
10. The sensing device according to claim 9, wherein the controller sends out a control signal according to the content of the nonmetallic slag, and further comprising a step of judging whether the content of the nonmetallic slag is greater than a second preset threshold, and sending out an early warning signal that the content of the nonmetallic slag is about to exceed the standard when the content of the nonmetallic slag is greater than the second preset threshold, wherein the first preset threshold is greater than the second preset threshold.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110675596 | 2021-06-18 | ||
| CN2021106755965 | 2021-06-18 |
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| Publication Number | Publication Date |
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| CN215263238U true CN215263238U (en) | 2021-12-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202121510366.5U Active CN215263238U (en) | 2021-06-18 | 2021-07-05 | Sensor for detecting content of non-metallic slag in smelting furnace and sensing device thereof |
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| CN (1) | CN215263238U (en) |
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2021
- 2021-07-05 CN CN202121510366.5U patent/CN215263238U/en active Active
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Inventor after: Wang Junjun Inventor after: Tan Jicheng Inventor after: Peng Dechu Inventor after: Quan Haiming Inventor after: Zhou Lirong Inventor after: Xie Qinglong Inventor after: Yang Jie Inventor after: Yang Jian Inventor before: Wang Junjun Inventor before: Tan Jicheng Inventor before: Peng Dechu Inventor before: Quan Haiming Inventor before: Zhou Lirong Inventor before: Xie Qinglong Inventor before: Yang Jie Inventor before: Yang Jian |