Crystallizer casting powder thickness measuring device with double-layer structural design

Abstract

The utility model discloses a crystallizer casting powder thickness measuring device with a double-layer structural design, which comprises a mounting plate, a metal rod is arranged in the center of the interior of the mounting plate, a fixing ring is arranged on one side of the metal rod, a circulating pump is arranged on one side of the fixing ring, a water cooling pipe is arranged on one side of the circulating pump, and the water cooling pipe is arranged on the other side of the mounting plate. A spiral cooling pipe is arranged on the other side of the circulating pump, the cooling pipe is arranged on the outer wall of the metal rod in a surrounding mode, a buffer layer is arranged on one side of the cooling pipe in a surrounding mode, a telescopic sleeve is arranged on one side of the buffer layer, one end of the metal rod is connected with a measuring probe, and the other end of the metal rod is connected with a water pump. Through the design of the outer protective shell and the cooling channel, the device can stably work in the high-temperature and corrosive environment, the application range is expanded, the device is particularly suitable for the severe steelmaking environment, through the addition of the double-layer structure and the buffer layer, high temperature and vibration are effectively isolated, material aging and abrasion are relieved, and the service life of the device is prolonged.

Description

Technical Field

[0001] The utility model relates to the field of thickness measuring devices, and more specifically, to a thickness measuring device for mold powder of a double-layer structure design. Background Technique

[0002] In the process of continuous casting production in steelmaking, the thickness of the mold powder has a crucial impact on the quality of steel billets. Traditional thickness measuring devices for mold powder usually adopt a single-layer structure, which has problems such as being easily affected by high-temperature and corrosive environments, resulting in a decrease in measurement accuracy and an increase in maintenance costs;

[0003] After retrieval, the existing patent (publication number: CN218638533U) discloses a thickness measuring device for the liquid slag layer of slab mold powder, which relates to the technical field of mold powder for continuous casting, and solves the technical problem of inaccurate measurement of the thickness of the liquid slag layer of mold powder in related technologies. It includes a mounting plate and a measuring strip. The mounting plate is configured to be installed at the notch of the mold. The measuring strip is fixedly passed through the mounting plate. One end of the measuring strip is set as a handheld end, and the other end of the measuring strip is set as a measuring end, and the measuring end is configured to extend into the liquid slag layer. Through this thickness measuring device, the adverse effects of the shaking of the operator's hand and the vibration of the mold on the measurement of the liquid slag layer thickness are improved. The structure is simple and the operation is convenient, and the accuracy of the liquid slag layer thickness measurement can be effectively improved. The inventor found the following problems in the process of implementing the present utility model:

[0004] Most of the existing measuring device probes adopt a single-layer design, and their working performance is unstable in the high-temperature and corrosive environment of the mold powder. The device needs to be frequently replaced and maintained, and there is a risk of aging and wear, which reduces the work efficiency;

[0005] Therefore, a thickness measuring device for mold powder of a double-layer structure design is proposed to solve the above problems. Content of the Utility Model

[0006] In order to overcome the above-mentioned defects of the prior art, the present utility model provides a thickness measuring device for mold powder of a double-layer structure design to solve the problems raised in the above background technique.

[0007] To achieve the above object, the present utility model provides the following technical solutions: A mold powder thickness measuring device with a double-layer structure design, including a mounting plate. At the center of the interior of the mounting plate, there is a metal rod. On one side of the metal rod, there is a fixing ring. On one side of the fixing ring, there is a circulation pump. On one side of the circulation pump, there is a water cooling pipe. On the other side of the circulation pump, there is a cooling pipe. The cooling pipe is spiral and is wound around the outer wall of the metal rod. On one side of the cooling pipe, there is a buffer layer wound around it. On one side of the buffer layer, there is a telescopic sleeve. One end of the metal rod is connected to a measuring probe, and the measuring probe is hemispherical.

[0008] Preferably, a sensor is connected to one side of the metal rod, and the thickness is measured by electromagnetic induction through the metal rod for the measuring probe.

[0009] Preferably, a heat dissipation fan is arranged on one side of the sensor.

[0010] Preferably, the buffer layer includes a silicone rubber layer and a ceramic fiber layer, and the ceramic fiber layer is arranged inside the silicone rubber layer.

[0011] Preferably, the telescopic sleeve is cylindrical and is concentrically installed with the metal rod. There are three groups of the telescopic sleeves, and the three groups of telescopic sleeves are combined through concave and convex grooves.

[0012] Preferably, limiting rings are wound around the outer wall of the telescopic sleeve. There are two groups of the limiting rings, and the two groups of limiting rings fix the extension length of the telescopic sleeve.

[0013] Preferably, a protective cover is arranged on one side of the measuring probe, and the protective cover is connected to the outer wall of the telescopic sleeve by means of a movable buckle.

[0014] The technical effects and advantages of the present utility model:

[0015] 1. Compared with the prior art, this mold powder thickness measuring device with a double-layer structure design enables the device to work stably in high-temperature and corrosive environments through the design of the outer protective shell and the cooling channel, expands the application range, is especially suitable for harsh steelmaking environments, and can work stably under conditions such as high temperature, high humidity, and corrosive gases. The adjustable connection mechanism makes the installation and adjustment of the device simple and fast, and the user can adjust the probe position according to actual needs.

[0016] 2. Compared with the prior art, this mold powder thickness measuring device with a double-layer structure design effectively isolates high temperature and vibration through the addition of the double-layer structure and the buffer layer, slows down material aging and wear, extends the service life of the device, and the modular design and the rapid replacement of vulnerable parts make maintenance more convenient and reduce the requirements for technicians. Brief Description of the Drawings

[0017] Figure 1 This is a schematic diagram of the overall structure of the present utility model.

[0018] Figure 2 This is a three-dimensional schematic diagram of the overall structure of the present utility model.

[0019] Figure 3 This is a schematic diagram of the telescopic sleeve and buffer layer structure of the present utility model.

[0020] Figure 4 This is a three-dimensional schematic diagram of the protective cover of the present utility model.

[0021] The reference numerals in the drawings are: 1, mounting plate; 2, metal rod; 3, fixing ring; 4, circulation pump; 5, water-cooled pipe; 6, cooling pipe; 7, buffer layer; 8, telescopic sleeve; 9, measuring probe; 10, sensor; 11, cooling fan; 12, silicone rubber layer; 13, ceramic fiber layer; 14, limit ring; 15, protective cover. Detailed Description of the Preferred Embodiments

[0022] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0023] Embodiment 1

[0024] As shown in the attached Figures 1 to 4 A mold powder thickness measuring device with a double-layer structure design, including a mounting plate 1. The mounting plate 1 is made of a metal material and serves to support and integrate. At the center of the interior of the mounting plate 1, there is a metal rod 2. The metal rod 2 is made of a high-temperature resistant and corrosion-resistant alloy steel or stainless steel to ensure stability and long life in a high-temperature and corrosive environment. The metal rod 2 is usually cylindrical, and its length and diameter are customized according to the mold size and installation position to ensure stable connection and sufficient strength. On one side of the metal rod 2, there is a fixing ring 3. The fixing ring 3 is usually made of a metal material, such as stainless steel or alloy steel, to ensure its strength and durability. These materials can withstand high temperatures, corrosive environments, and mechanical stresses. To improve the rust prevention performance, the fixing ring 3 can choose electroless nickel plating surface treatment or use SUS304 material.

[0025] On one side of the fixed ring 3, a circulating pump 4 is provided. On one side of the circulating pump 4, a water cooling pipe 5 is provided. On the other side of the circulating pump 4, a cooling pipe 6 is provided. The flow rate of the circulating pump 4 is selected according to the pipe diameter of the water cooling pipe 5. For example, when the pipe diameter is less than or equal to 250 mm, the flow rate is 1.5 - 2.0 m / s; the flow rate of the suction pipe is selected between 0.6 - 1.2 m / s according to different diameters. The cooling pipe 6 is spiral. The pipe material selected for the cooling pipe 6 should consider factors such as whether the circulating water is corrosive, sunlight exposure, and installation requirements. For example, corrosion-resistant stainless steel or special plastic pipes can be selected. And the cooling pipe 6 is arranged around the outer wall of the metal rod 2. The cooling pipe 6 is distributed in a spiral shape along the outer wall of the metal rod 2. This design can maximize the heat exchange area and improve the cooling efficiency. The shape of the cooling pipe 6 can be optimized through mathematical models and experimental data to ensure the best cooling effect.

[0026] On one side of the cooling pipe 6, a buffer layer 7 is arranged around it. The buffer layer 7 can prevent defects (such as dislocations, microcracks, etc.) from the substrate from propagating to the upper structure and improve the crystal quality of the upper material. On one side of the buffer layer 7, a telescopic sleeve 8 is provided. The telescopic sleeve 8 can adapt to temperature changes and mechanical stresses and effectively protect the internal components. For example, in the continuous casting mold powder thickness measuring device, the telescopic sleeve 8 can isolate high temperature and vibration to ensure the stable operation of the measuring probe 9. One end of the metal rod 2 is connected with a measuring probe 9. The measuring probe 9 is hemispherical. The measuring probe 9 must have sufficient bandwidth to capture the high-speed changing voltage and current waveforms in the system to avoid signal distortion.

[0027] Embodiment 2

[0028] Based on Embodiment 1, the solution in Embodiment 1 is further refined and introduced in combination with the following specific working methods, such as Figures 1 to 4 as shown, and the details are described below:

[0029] As a preferred implementation manner, a sensor 10 is connected to one side of the metal rod 2. The measuring probe 9 measures the thickness by electromagnetic induction through the metal rod 2. Further, the metal rod 2 ensures that the measuring probe 9 can be stably positioned at an appropriate position in the mold.

[0030] As a preferred implementation manner, the model of the sensor 10 is Honeywell SMARTL I NE ST87. A cooling fan 11 is provided on one side of the sensor 10. Further, the sensor 10 is based on the principle of electromagnetic induction. When a metal target enters the detection area, it will cause a change in the electromagnetic field and trigger an output signal. The cooling fan 11 ensures that the sensor 10 will not overheat during operation, thereby extending the service life of the equipment.

[0031] As a preferred embodiment, the buffer layer 7 includes a silicone rubber layer 12 and a ceramic fiber layer 13. The ceramic fiber layer 13 is disposed inside the silicone rubber layer 12. Further, the combination of the silicone rubber layer 12 and the ceramic fiber layer 13 comprehensively utilizes the advantages of both. It has both the flexibility and flame retardancy of silicone rubber, and the high-temperature stability and heat insulation of ceramic fibers. The application of this composite material in the buffer layer 7 can effectively isolate the high temperature and vibration of the continuous casting mold, protect the measurement probe from the environmental influence, thereby improving the measurement accuracy and the equipment life.

[0032] As a preferred embodiment, the telescopic sleeve 8 is in a cylindrical shape and is concentrically installed with the metal rod 2. There are three groups of telescopic sleeves 8, and the three groups of telescopic sleeves 8 are combined by concave and convex grooves. Further, each section of the telescopic sleeve 8 is connected by concave and convex grooves to ensure that it remains fixed during the telescopic process and will not loosen due to vibration or temperature change.

[0033] As a preferred embodiment, two limiting rings 14 are circumferentially provided on the outer wall of the telescopic sleeve 8, and the two limiting rings 14 fix the extension length of the telescopic sleeve 8. Further, the limiting rings 14 are usually made of materials with high durability and mechanical strength, such as stainless steel or alloy steel, to ensure their stability and long life in various environments. The main function of the limiting rings 14 is to provide a physical barrier when the telescopic sleeve moves to a predetermined position, preventing excessive extension or compression, thereby protecting the internal components from damage.

[0034] As a preferred embodiment, a protective cover 15 is provided on one side of the measurement probe 9. The protective cover 15 is connected to the outer wall of the telescopic sleeve 8 by means of a movable buckle. Further, the material of the protective cover 15 needs to have good heat resistance, flame retardancy and mechanical strength to adapt to the high-temperature environment of the continuous casting mold. The structural design of the protective cover 15 can adopt a spherical or hemispherical shape to fit the hemispherical shape of the measurement probe 9. The spherical protective cover can provide more comprehensive protection, especially the global protective cover, which is suitable for hanging or ceiling-mounted installation and helps to protect the internal measurement probe 9 in all directions.

[0035] The working process of the present utility model is as follows: First, place the mounting plate 1 above the working area, use the telescopic sleeve 8 to carry the measurement probe 9 deep into the crystallization protective layer to start measuring the thickness. At the same time, start the sensor 10 in the mounting plate 1. The metal rod 2 extends into the protective layer together with the measurement probe 9 as the telescopic sleeve 8 elongates, so that the measurement probe 9 starts to collect data. At the same time, the cooling pipe 6 outside the metal rod 2 starts to work, and the circulating pump 4 above makes the cooling water body take away the surface heat. At the same time, the heat dissipation fan 11 also keeps the sensor 10 at the operating temperature until the measurement is completed. The above is the working principle of the device for measuring the thickness of the mold powder of the continuous casting mold with a double-layer structure design.

[0036] Finally, the above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A device for measuring the thickness of mold powder with a double-layer structure, comprising a mounting plate (1), characterized in that: A metal rod (2) is arranged at the inner center of the mounting plate (1); a fixing ring (3) is arranged on one side of the metal rod (2); a circulating pump (4) is arranged on one side of the fixing ring (3); a water cooling pipe (5) is arranged on one side of the circulating pump (4); a cooling pipe (6) is arranged on the other side of the circulating pump (4); the cooling pipe (6) is spiral-shaped and is arranged around the outer wall of the metal rod (2); a buffer layer (7) is arranged around one side of the cooling pipe (6); a telescopic sleeve (8) is arranged on one side of the buffer layer (7); a measuring probe (9) is connected to one end of the metal rod (2); and the measuring probe (9) is hemispherical.

2. The double-layer structured mold slag thickness measuring device according to claim 1, characterized in that: A sensor (10) is connected to one side of the metal rod (2), and the measuring probe (9) uses electromagnetic induction to measure the thickness of the metal rod (2).

3. The double-layer structured mold slag thickness measuring device according to claim 2, characterized in that: A heat dissipation fan (11) is provided on one side of the sensor (10).

4. The double-layer structured mold slag thickness measuring device according to claim 1, characterized in that: The buffer layer (7) comprises a silicone rubber layer (12) and a ceramic fiber layer (13), and the ceramic fiber layer (13) is arranged inside the silicone rubber layer (12).

5. The double-layer structured mold slag thickness measuring device according to claim 1, characterized in that: The telescopic sleeve (8) is cylindrical and is installed concentrically with the metal rod (2). Three groups of the telescopic sleeves (8) are provided, and the three groups of the telescopic sleeves (8) are combined through concave and convex grooves.

6. The double-layer structured mold slag thickness measuring device according to claim 1, characterized in that: A limiting ring (14) is arranged around the outer wall of the telescopic sleeve (8), and two groups of the limiting rings (14) are provided. The two groups of the limiting rings (14) fix the extension length of the telescopic sleeve (8).

7. The double-layer structured mold slag thickness measuring device according to claim 1, characterized in that: A protective cover (15) is provided on one side of the measuring probe (9), and the protective cover (15) is connected to the outer wall of the telescopic sleeve (8) by means of a movable buckle.

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