Supporting ring type steel ladle roughing slag detection device

Abstract

The utility model discloses a backing ring type steel ladle roughing slag detection device which comprises a sensor body, the sensor body comprises an inner ring sleeve, the outer circumferential wall of the inner ring sleeve is provided with a circle of inner groove, the lower end face of the inner ring sleeve is provided with a plurality of first through holes, and the upper side wall of the inner groove is provided with a plurality of first screw holes; each first through hole is connected with the corresponding first screw hole through a first screw; the detection coil is wound and fixed in the inner groove and is positioned between the first screw and the groove bottom of the inner groove; the outer ring sleeve comprises a first semi-ring and a second semi-ring detachably connected with the first semi-ring, the first semi-ring and the second semi-ring surround and cover the inner groove, the first semi-ring and / or the second semi-ring are / is detachably connected with the inner ring sleeve, and the first semi-ring is provided with a wire passing hole; the detection coil is effectively prevented from being scattered during carrying and hoisting or under the high-temperature working condition, the detection effect of the sensor is guaranteed, the structure arrangement is simple, implementation is easy, and the accuracy and stability of steel ladle roughing slag detection are improved.

Description

Technical Field

[0001] This utility model relates to the field of ladle slag detection technology, specifically to a ring-type ladle slag detection device. Background Technology

[0002] In the steel smelting process, slag detection in the ladle is a crucial step, directly affecting steel quality and production efficiency. To effectively detect slag in the ladle, a common method is to utilize the principle of electromagnetic induction. This involves detecting changes in the induced electromotive force generated by the eddy current cutting through the magnetic field lines of a detection coil in the molten steel to determine whether the steel stream contains slag.

[0003] However, existing slag detection devices for steel ladles have some problems in practical applications, especially during handling and hoisting or under high-temperature conditions. The detection coil may be subjected to external forces such as compression, collision, or vibration, causing its structure to deform or loosen, or its dimensions to change due to thermal expansion and contraction. This makes the coil's winding structure unstable and prone to scattering. This not only affects the sensor's detection performance but may also adversely impact the safety and efficiency of steel production. Utility Model Content

[0004] The purpose of this invention is to address the problems existing in the prior art by providing a ring-type ladle slag detection device. This device effectively prevents the detection coil from becoming scattered during handling and hoisting or under high-temperature conditions, ensuring the detection effect of the sensor. The structure is simple, easy to implement, and improves the accuracy and stability of ladle slag detection.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A ring-type ladle slag detection device includes a sensor body, comprising: an inner ring sleeve with an inner groove on its outer peripheral wall; a plurality of first through holes extending upward to the inner groove on the lower end face of the inner ring sleeve; a plurality of first screw holes corresponding one-to-one with the first through holes on the upper side wall of the inner groove; each first through hole being connected to the corresponding first screw hole by a first screw; a detection coil wound and fixed in the inner groove, located between the first screw and the bottom of the inner groove; and an outer ring sleeve including a first half-ring and a second half-ring detachably connected to the first half-ring, the first half-ring and the second half-ring surrounding and covering the inner groove, the first half-ring and / or the second half-ring being detachably connected to the inner ring sleeve, and the first half-ring having a wire passage hole.

[0007] The lower end face of the inner ring sleeve is provided with a plurality of second through holes extending upward to the inner groove, and the lower end face of the first half ring and / or the second half ring is provided with a plurality of second screw holes corresponding to the second through holes, and each second through hole is connected to the corresponding second screw hole by a second screw.

[0008] The two ends of the first half-ring and the second half-ring are respectively fixedly connected by a third screw.

[0009] The upper end face of the outer ring sleeve abuts against the upper side wall of the inner groove, and the lower end face of the outer ring sleeve abuts against the lower side wall of the inner groove.

[0010] The device also includes a ring support bracket with two supporting side plates. The sensor body is located between the two supporting side plates. Each supporting side plate is connected to the peripheral wall of the inner ring sleeve by a pin. One end of the pin is provided with a baffle that abuts against the inner wall of the inner ring sleeve. The other end of the pin is provided with a radially penetrating pin hole, and a pin rod is connected to the pin hole.

[0011] One end of the pin extends in the opposite direction around the pin shaft until it abuts against the other end, forming an elastic limiting part to prevent the pin shaft from coming out.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. By setting the detection coil in the inner groove and fixing it with the first screw, the detection coil is effectively prevented from being scattered during handling and hoisting or under high temperature conditions, ensuring the detection effect of the sensor. The structure is simple and easy to implement, improving the accuracy and stability of slag detection in steel ladles.

[0014] 2. The first half-ring and the second half-ring are fixedly connected at both ends by a third screw, which can adapt to different working environments and temperature changes, improve the stability and durability of the device, and avoid cracking and falling off caused by traditional welding methods;

[0015] 3. The pin is fixed by a pin. When it is necessary to remove the pin to separate the sensor and the ring bracket, simply pull the pin out of the pin hole and then knock out the pin, which simplifies the installation process.

[0016] 4. The elastic limiting part formed by the pin further enhances the connection stability between the pin and the inner ring sleeve, effectively preventing the pin from accidentally coming out. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the slag detection device in one embodiment of this application;

[0019] Figure 2 This is a schematic diagram of the installation structure of the inner ring sleeve and the outer ring sleeve in one embodiment of this application;

[0020] Figure 3 This is a schematic diagram of the disassembled structure of the inner ring and the outer ring in one embodiment of this application;

[0021] Figure 4 This is a schematic diagram of the disassembled structure of the outer ring sleeve in one embodiment of this application;

[0022] Figure 5 This is a schematic diagram of the disassembled structure of the sensor body and the ring support bracket in one embodiment of this application;

[0023] In the diagram: 1. Inner ring sleeve; 2. Inner groove; 3. First through hole; 4. First screw hole; 5. First screw; 6. Detection coil; 7. First half ring; 8. Second half ring; 9. Wire hole; 10. Second through hole; 11. Second screw hole; 12. Second screw; 13. Third screw; 14. Support side plate; 15. Pin shaft; 16. Pin rod. Detailed Implementation

[0024] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0025] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0026] Furthermore, terms such as "horizontal" and "vertical" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0027] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0028] like Figures 1 to 5 As shown, a ring-type ladle slag detection device is installed at the long slag outlet of the ladle. It includes a sensor body, which includes: an inner ring sleeve 1 with an inner groove 2 on its outer peripheral wall; a plurality of first through holes 3 extending upward to the inner groove 2 on the lower end face of the inner ring sleeve 1; a plurality of first screw holes 4 corresponding one-to-one with the first through holes 3 on the upper side wall of the inner groove 2; each first through hole 3 is connected to the corresponding first screw hole 4 by a first screw 5; a detection coil 6, which is wound and fixed in the inner groove 2 and located between the first screw 5 and the bottom of the inner groove 2; and an outer ring sleeve, including a first half ring 7 and a second half ring 8 detachably connected to the first half ring 7. The first half ring 7 and the second half ring 8 surround and cover the inner groove 2. The first half ring 7 and / or the second half ring 8 are detachably connected to the inner ring sleeve 1. The first half ring 7 is provided with a wire passage hole 9.

[0029] The detection coil 6 is generally made of nickel wire. However, during handling and hoisting or under high temperature conditions, the detection coil may be subjected to external pressure, collision or vibration, which may cause its structure to deform or loosen, or cause dimensional changes due to thermal expansion and contraction, making the winding structure of the coil unstable and resulting in a scattered phenomenon.

[0030] In this embodiment, an inner groove 2 is provided on the outer peripheral wall of the inner ring sleeve 1, and the detection coil 6 is wound and fixed in the inner groove 2. The first screw 5 is used to press the detection coil 6 tightly against the bottom of the groove 2, thereby fixing the detection coil 6. When molten steel flows into the tundish through the long nozzle, the eddy current in the molten steel cuts the magnetic field lines in the detection coil, generating an induced electromotive force. By monitoring the change in the induced electromotive force, the system can determine whether the steel flow contains slag.

[0031] By placing the detection coil 6 in the inner groove 2 and fixing it with the first screw 5, the detection coil 6 is effectively prevented from scattering during handling and hoisting or under high-temperature conditions, thus ensuring the detection effect of the sensor. The structure is simple, easy to implement, and improves the accuracy and stability of slag detection in steel ladles.

[0032] In some embodiments, the lower end face of the inner ring sleeve 1 is provided with a plurality of second through holes 10 extending upward to the inner groove 2, and the lower end face of the first half ring 7 and / or the second half ring 8 is provided with a plurality of second screw holes 11 corresponding to the second through holes 10. Each second through hole 10 is connected to the corresponding second screw hole 11 by a second screw 12. By adding the second through holes, the second screw holes, and the second screws, a firm connection between the inner ring sleeve 1 and the outer ring sleeve is achieved, effectively preventing the outer ring sleeve from rotating or falling off during handling, hoisting, or use.

[0033] In some embodiments, the two ends of the first half-ring 7 and the second half-ring 8 are respectively fixedly connected by a third screw 13. Traditional welding methods cause the first half-ring 7 and the second half-ring 8 to crack and detach when subjected to thermal expansion and contraction. In this embodiment, the two ends of the first half-ring 7 and the second half-ring 8 are fixedly connected by the third screw 13, which can adapt to different working environments and temperature changes, improving the stability and durability of the device.

[0034] In some embodiments, the upper end face of the outer ring sleeve abuts against the upper sidewall of the inner groove 2, and the lower end face of the outer ring sleeve abuts against the lower sidewall of the inner groove 2. The abutting fit between the upper and lower end faces of the outer ring sleeve and the inner groove 2 enhances the fixing effect of the outer ring sleeve and prevents it from loosening or falling off during handling, hoisting or use.

[0035] In some embodiments, the detection device further includes a ring support bracket with two supporting side plates 14. The sensor body is located between the two supporting side plates 14. Each supporting side plate 14 is connected to the peripheral wall of the inner ring sleeve 1 through a pin 15. One end of the pin 15 is provided with a baffle that abuts against the inner wall of the inner ring sleeve 1, and the other end of the pin 15 is provided with a radially penetrating pin hole, through which a pin rod 16 is connected. By setting the ring support bracket and the supporting side plates 14, stable support and fixation are provided for the inner ring sleeve 1, preventing the inner ring sleeve 1 from moving or deforming during use. At the same time, when it is necessary to remove the pin 15 to separate the sensor and the ring support bracket, it is only necessary to pull the pin rod 16 out of the pin hole and then knock out the pin. This connection method simplifies the installation process.

[0036] In some embodiments, one end of the pin 16 extends in the opposite direction around the pin 15 until it abuts against the other end, forming an elastic limiting portion to prevent the pin 15 from coming out. The elastic limiting portion formed by the pin further enhances the connection stability between the pin and the inner ring sleeve, effectively preventing the pin from accidentally coming out.

[0037] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A ring-type ladle slag detection device, installed at the long slag outlet of the ladle, characterized in that, Includes a sensor body, the sensor body comprising: The inner ring sleeve (1) has an inner groove (2) on its outer peripheral wall. The lower end face of the inner ring sleeve (1) has several first through holes (3) extending upward to the inner groove (2). The upper side wall of the inner groove (2) has several first screw holes (4) corresponding to the first through holes (3). Each first through hole (3) is connected to the corresponding first screw hole (4) by a first screw (5). The detection coil (6) is wound and fixed in the inner groove (2) and located between the first screw (5) and the bottom of the inner groove (2); The outer ring sleeve includes a first half ring (7) and a second half ring (8) detachably connected to the first half ring (7). The first half ring (7) and the second half ring (8) surround and cover the inner groove (2). The first half ring (7) and / or the second half ring (8) are detachably connected to the inner ring sleeve (1). The first half ring (7) is provided with a wire hole (9).

2. The slag detection device for a steel ladle with a support ring as described in claim 1, characterized in that, The lower end face of the inner ring sleeve (1) is provided with a plurality of second through holes (10) extending upward to the inner groove (2), and the lower end face of the first half ring (7) and / or the second half ring (8) is provided with a plurality of second screw holes (11) corresponding to the second through holes (10). Each second through hole (10) is connected to the corresponding second screw hole (11) by a second screw (12).

3. The slag detection device for a steel ladle with a support ring as described in claim 1, characterized in that, The two ends of the first half ring (7) and the second half ring (8) are respectively fixedly connected by the third screw (13).

4. The slag detection device for a steel ladle with a support ring as described in claim 1, characterized in that, The upper end face of the outer ring sleeve abuts against the upper side wall of the inner groove (2), and the lower end face of the outer ring sleeve abuts against the lower side wall of the inner groove (2).

5. The slag detection device for a steel ladle with a support ring as described in claim 1, characterized in that, The device includes a ring support bracket with two support side plates (14). The sensor body is located between the two support side plates (14). Each support side plate (14) is connected to the circumferential wall of the inner ring sleeve (1) through a pin (15). One end of the pin (15) is provided with a baffle that abuts against the inner wall of the inner ring sleeve (1). The other end of the pin (15) is provided with a radially penetrating pin hole, and a pin rod (16) is connected to the pin hole.

6. The slag detection device for a steel ladle with a support ring according to claim 5, characterized in that, One end of the pin (16) extends in the opposite direction around the pin (15) until it abuts against the other end, forming an elastic limiting part to prevent the pin (15) from coming out.

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