Calibration and verification device for liquid level of continuous casting crystallizer

Abstract

The utility model discloses a liquid level calibration and verification device for a continuous casting crystallizer, which adopts a U-shaped support frame, the U-shaped end of the U-shaped support frame is arranged at the top end of an inlet of the crystallizer, the support frame is provided with a through hole and a transmission screw rod, the bottom end of the transmission screw rod is connected with a configuration block, and the top end of the transmission screw rod is connected with a limiting plate; the cylindrical cap is fixed to the supporting frame and sleeved with the transmission screw, the transmission cap is installed at the top end of the cylindrical cap, an internal thread groove is formed in the inner wall of the cylindrical cap and matched with the transmission screw, a groove is formed in one side of the transmission screw and adheres to the ruler, sliding grooves are formed in the two sides of the U-shaped end, and the built-in sliding blocks are connected through springs and abut against the outer side of an inlet of the crystallizer. According to the device, traditional measurement errors and time delay are avoided, high-precision liquid level calibration is provided, the top end of an inlet of the crystallizer is clamped, shaking is prevented, the horizontal position can be adjusted according to needs, and the measurement precision is ensured.

Description

Technical Field

[0001] This utility model relates to the field of metallurgical metering equipment technology, specifically a continuous casting crystallizer liquid level calibration and verification device. Background Technology

[0002] The stability of the liquid level in the continuous casting mold is crucial to the solidification process of molten steel, the quality of the billet, and the smooth progress of subsequent processing. The height of the liquid level in the mold needs to be maintained within a precise range to ensure uniform cooling and crystallization of the molten steel and avoid billet defects such as porosity, cracks, or segregation. Although the currently used manual measurement method can provide information on the liquid level to some extent, it cannot achieve accurate data from multiple casting flows due to its large error and low calibration efficiency. Utility Model Content

[0003] The purpose of this invention is to provide a calibration and verification device for the liquid level of a continuous casting crystallizer, in order to solve the problem that the current manual measurement method, although it can provide information on the liquid level height to a certain extent, cannot achieve accurate data for multiple casting flows due to its large error and low calibration efficiency.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a continuous casting crystallizer liquid level calibration and verification device, comprising a transmission screw, a scale, a transmission handle, a support frame, a configuration block, and a clamping plate. The support frame is U-shaped, with its U-shaped end resting on the top of the crystallizer inlet. A through hole is provided on the support frame, and the transmission screw is disposed within the through hole. The bottom threaded end of the transmission screw is connected to the configuration block, and the top end is connected to a limit plate. A cylindrical cap is provided at the top of the through hole, which is fitted onto the outside of the transmission screw and fixedly connected to the support frame. A transmission cap is provided at the top of the cylindrical cap, which is fitted onto the outer circumference of the transmission screw. The inner wall of the device has an internal threaded groove. The bottom end of the transmission cap abuts against the top end of the cylindrical cap. A vertical groove is provided on one side of the transmission screw, and a scale is attached to the groove. The U-shaped end of the support frame has symmetrical sliding grooves on both the front and rear sides. Two sliders are provided in the sliding grooves and are slidably fitted to the support frame. The sliders abut against the outer circumference of the top of the crystallizer inlet. The sliders are located on the left and right sides of the transmission screw, and the two sliders are connected by springs located on the front and rear sides of the transmission screw, respectively. The sliders have threaded through holes, and threaded rods are provided in the threaded through holes. The threaded rods pass through the sliders, and their top ends abut against the bottom end of the support frame.

[0005] Preferably, the support frame and the contact end of the crystallizer inlet are respectively connected to support feet, the top of the support feet are provided with adjusting screws, the adjusting screws pass through the support frame and cooperate with the threaded through holes opened on the support frame, and the top of the screws are connected to adjusting wheels.

[0006] Preferably, the bottom end of the slider extends toward the end away from the support frame.

[0007] Preferably, the contact end between the slider and the top of the crystallizer inlet is arc-shaped, and the arc-shaped end abuts against the outer circumference of the top of the crystallizer inlet.

[0008] Preferably, the contact end between the slider and the outer circumference of the top of the crystallizer inlet is provided with an anti-slip pad.

[0009] Preferably, the contact end between the support foot and the top of the crystallizer inlet is provided with an anti-slip pad.

[0010] Preferably, it also includes a level, which is mounted on the support frame.

[0011] Preferably, the contact ends of the transmission cap and the cylindrical cap are both polished.

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

[0013] This design provides a calibration device that can directly read calibration data to improve the accuracy of liquid level calibration, solving the errors and calibration delays caused by the current use of measuring tapes or rulers. At the same time, the device clamps and positions the outer circumference of the top of the crystallizer inlet to avoid shaking during calibration. The device can also adjust its horizontal position according to the usage conditions to ensure accurate measurement results. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0015] Figure 2 This is a schematic diagram of the interaction between the adjusting screw and the support foot of this utility model.

[0016] Figure 3 This is a schematic diagram of the spring and slider working together in this utility model.

[0017] Figure 4 This is a schematic diagram of the interaction between the transmission screw and the scale of this utility model.

[0018] In the diagram: 1. Transmission screw; 2. Scale; 3. Transmission cap; 4. Support frame; 5. Configuration block; 6. Slider; 7. Spring; 8. Adjusting screw; 9. Support foot. Detailed Implementation

[0019] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0020] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used 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" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0021] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within 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.

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Example 1: Please refer to Figure 1-4This utility model provides an embodiment of a continuous casting crystallizer liquid level calibration and verification device, including a transmission screw 1, a scale 2, a transmission handle 3, a support frame 4, a mounting block 5, and a clamping plate. The support frame 4 is U-shaped, with its U-shaped end resting on the top of the crystallizer inlet. The support frame 4 supports the entire structure of the device, and the U-shaped end is stably resting on the top of the crystallizer inlet, providing solid support. Simultaneously, a through hole on the support frame 1 accommodates the transmission screw 1, ensuring the screw's guidance. The support frame 4 has a through hole, within which the transmission screw 1 is located. By rotating the transmission screw 1, the mounting block 5 can rise or fall along the screw direction, thereby achieving liquid level calibration adjustment. The bottom threaded end of the transmission screw 1 is connected to the mounting block 5. By connecting with the transmission screw 1, the rotation of the screw can be converted into linear movement of the configuration block 5, used to adjust the position of the calibration liquid level. Under the weight of the configuration block 5, the top of the support frame 4 contacts the lower surface of the head of the transmission handle 3. When the handle is turned counterclockwise, the configuration block rises under the transmission of the screw, and falls clockwise. The top is connected to a limit plate, and the top of the through hole is provided with a cylindrical cap. The cylindrical cap is used to support the transmission cap 3 and limit the position of the transmission cap 3. The cylindrical cap is sleeved on the outside of the transmission screw 1 and fixedly connected to the support frame 4. The top of the cylindrical cap is provided with the transmission cap 3. The contact ends of the transmission cap 3 and the cylindrical cap are polished. The internal thread groove of the transmission cap 3 and the external thread of the transmission screw 1 are used to cooperate with each other, and the transmission... An adjusting handle is connected to the outer circumference of the cap 3 to drive the transmission cap 3 to rotate. The contact end between the transmission cap 3 and the cylindrical cap is polished to reduce friction during rotation. The transmission cap 3 is fitted onto the outer circumference of the transmission screw 1, and its inner wall has an internal thread groove. The bottom end of the transmission cap 3 abuts against the top end of the cylindrical cap. A vertically oriented groove is formed on one side of the transmission screw 1, and a scale 2 is attached to the groove. The scale 2, through its cooperation with the transmission screw 1, directly reads the calibrated value, thereby improving accuracy. When the configuration block 5 is at the top, the reading is 0; when it is at the bottom, the reading is 350mm. The U-shaped end of the support frame 4 has symmetrically formed sliding grooves on both the front and rear sides. Two sliders 6 are installed in the sliding grooves. The sliders 6 are used to adjust the external... The side circumference is used for clamping and positioning, while the threaded rod abuts against the bottom end of the support frame 4 for limiting movement, preventing the support frame 4 from shaking during the calibration process and thus causing inaccurate calibration results. The bottom end of the slider 6 extends away from the support frame 4, and the bottom end of the slider 6 exceeds the bottom end of the support frame 4, so as to firmly clamp the top of the crystallizer inlet, and securely connect the support frame 4 to the top of the crystallizer inlet. The contact end between the slider 6 and the top of the crystallizer inlet is arc-shaped, and the arc-shaped end abuts against the outer circumference of the top of the crystallizer inlet. The arc-shaped end cooperates with the outer circumference of the top of the crystallizer inlet, and the arc-shaped end can better fit and stably position the device. The contact end between the slider 6 and the outer circumference of the top of the crystallizer inlet is equipped with an anti-slip pad.The anti-slip pad further increases the friction with the contact end at the top of the crystallizer inlet, preventing the device from sliding. It also slides onto the support frame 4. The slider 6 abuts against the outer circumference of the top of the crystallizer inlet. The sliders 6 are located on the left and right sides of the transmission screw 1, respectively. The two sliders 6 are connected by springs 10, which provide a certain pulling force to ensure that the slider 6 is always in close contact with the outer circumference of the top of the crystallizer inlet, avoiding errors or loosening. The springs 10 are located on the front and rear sides of the transmission screw 1, respectively. A threaded through hole is provided on the slider 6, and a threaded rod is installed inside the threaded through hole. The threaded rod passes through the slider 6, and its top end abuts against the bottom end of the support frame 4.

[0024] In use, place the calibration device at the top of the crystallizer and slide the slider 6 until its arc-shaped end contacts the outer circumference of the top of the crystallizer inlet. Then rotate the threaded rod until its top end contacts the bottom of the support frame 4, limiting the slider 6. Next, lower the configuration block 5 into the crystallizer inlet and turn the handle to rotate the transmission cap 3, which in turn rotates the transmission screw 1. Then, position the configuration block 5 at its highest point. When the configuration block is at its highest point, due to the rotation of the screw, it has risen to its maximum height, so the reading at this time is "0". This means that the starting point of the rise and fall of the configuration block 5 is the calibration reference point. At this time, the reading on the scale is "0", providing the initial reference position for the system.

[0025] When configuration block 5 descends: As configuration block 5 descends, the handle rotates, and the transmission screw 1 drives configuration block 5 to descend. The reading on scale 2 increases accordingly. The calibration process at this time can be achieved by observing the value on scale 2, ensuring that configuration block 5 is precisely adjusted according to actual needs and equipment standard parameters during its descent. Each rotation of the handle increases the reading accordingly, and different calibration parameters are adjusted based on actual requirements.

[0026] After use, apply lubricant to the transmission screw 1 promptly for maintenance, and have two people lift it away from the crystallizer area and store it in a place away from dust.

[0027] Example 2: Please refer to Figure 2-3 Based on Example 1, it also has the following structure:

[0028] Support legs 9 are connected to the contact ends of the support frame 4 and the top of the crystallizer inlet. The support legs 9 support the contact ends of the crystallizer inlet. The relative position of the support frame 9 and the crystallizer is precisely controlled by rotating the adjusting screws 8 to adjust the height between the support legs 9 and the support frame 4, thus leveling the support frame 4. The top of each support leg 9 has an adjusting screw 8 that passes through the support frame 4 and engages with threaded through holes on the support frame 4. An adjusting wheel is connected to the top of each screw 8, providing fine-tuning capability so that the height of the support legs 9 can be adjusted within a small range, ensuring that the support frame 4 is level during calibration. Anti-slip pads are provided at the contact ends of the support legs 9 and the top of the crystallizer inlet to increase friction and prevent slippage.

[0029] It also includes a level, which is set on the support frame 4. Observe the bubble of the level to see if the support frame 4 is level. If it is not level, rotate the adjusting screw 8 to fine-tune the height of the support foot 9 and adjust the support frame 4 so that the support frame 4 is perpendicular to the inner and outer arcs of the crystallizer and the whole is level. Then, perform the calibration work.

[0030] The above description is merely an embodiment of this utility model, and common knowledge regarding specific structures and characteristics is not described in detail here. It will be apparent to those skilled in the art that this utility model is not limited to the details of the above exemplary embodiments, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this utility model is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A device for calibration and verification of the liquid level in a continuous casting mould, characterized in that: The utility model relates to a transmission screw rod (1), scale (2), transmission cap (3), support frame (4), configuration block (5), slider (6), the support frame (4) is U-shaped setting, and its U-shaped end is set up on the crystallizer entrance top end, and the support frame (4) is set up with the through -hole, and the through -hole is equipped with transmission screw rod (1), and the bottom end threaded cut -off end of transmission screw rod (1) is connected with configuration block (5), and the top end is connected with the limiting plate, the top end of the through -hole is equipped with the cylindrical cap, and the cylindrical cap is set up on the outside of transmission screw rod (1), and is fixedly connected on the support frame (4), and the top end of cylindrical cap is equipped with transmission cap (3), and transmission cap (3) is set up on the outside circumference of transmission screw rod (1), and the inner wall is set up with internal thread groove, and the bottom end of transmission cap (3) and the top end of cylindrical cap are in contact, and the one side end of transmission screw rod (1) is set up with the vertical slot, and the slot is bonded with scale (2), the U-shaped end of support frame (4) is set up with the slide groove symmetrically in front and back two sides, and the slide groove is equipped with two sliders (6), and is slidably connected in the support frame (4), and the slider (6) is in contact with the outside circumference of the crystallizer entrance top end, and the slider (6) is located on the left and right two side ends of transmission screw rod (1) respectively, and the left and right sliders (6) are connected through spring (7), and the spring (7) is located on the front and back two side ends of transmission screw rod (1) respectively, the threaded through -hole is equipped with threaded rod in the slider (6), and the threaded rod penetrates slider (6), and the top end is in contact with the bottom end of support frame (4).

2. A device for calibration and verification of the liquid level in a continuous casting mould according to claim 1, characterised in that: The contact end of the support frame (4) and the crystallizer entrance top end is connected with support leg (9) respectively, the top end of support leg (9) is equipped with adjusting screw rod (8), adjusting screw rod (8) penetrates support frame (4) respectively, and is used with the threaded through -hole set up on support frame (4) each other, and the top end is connected with adjusting wheel.

3. A device for calibration and verification of liquid level in a continuous casting mould according to claim 1, characterized in that: The bottom end of the slider (6) extends away from the support frame (4).

4. A device for calibration and verification of liquid level in a continuous casting mould according to claim 1, characterized in that: The contact end of the slider (6) and the crystallizer entrance top end is arranged in an arc shape, and the arc-shaped end is in contact with the outer circumference of the crystallizer entrance top end.

5. A device for calibration and verification of the liquid level in a continuous casting mould according to claim 4, characterised in that: The contact end of the slider (6) and the outer circumference of the crystallizer entrance top end is equipped with a non-slip pad.

6. A device for calibration and verification of liquid level in a continuous casting mould according to claim 2, characterized in that: The contact end of the support leg (9) and the crystallizer entrance top end is equipped with a non-slip pad.

7. A device for calibration and verification of liquid level in a continuous casting mould according to claim 1, characterized in that: It also includes a level, which is arranged on the support frame (4).

8. A device for calibration and verification of liquid level in a continuous casting mould according to claim 1, characterized in that: The contact end of the transmission cap (3) and the cylindrical cap is polished.

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