Calibration tool for liquid level of crystallizer of continuous casting machine

Abstract

The utility model relates to the technical field of continuous casting machine equipment, in particular to a continuous casting machine crystallizer liquid level calibration tool which comprises a fixed baffle placed on an end face opening of a crystallizer, a sliding hole is formed in the fixed baffle, a threaded rod is vertically arranged in the sliding hole in a sliding and penetrating mode, and a plane is arranged on one side of the threaded rod in the length direction. Scale marks are arranged on the plane in the length direction, the bottom of the screw rod is connected with a simulation steel billet, the screw rod is in threaded connection with an upper adjusting nut and a lower adjusting nut, the upper adjusting nut is located above the fixed baffle, a rotating handle is fixedly connected to the upper adjusting nut, and the lower adjusting nut is located below the fixed baffle. The upper adjusting nut can be driven to rotate by rotating the rotating handle, then the simulated steel billet is driven to ascend and descend in the crystallizer copper pipe, a worker can visually observe the height value of the simulated steel billet through the scale marks, the step of measuring through a ruler or a box ruler is simplified, the calibration efficiency is improved, and the risk that the simulated steel billet is exposed to a cesium source due to measurement is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of continuous casting machine equipment technology, especially to a continuous casting machine crystallizer liquid level calibration tool. BACKGROUND

[0002] The continuous casting machine is a kind of equipment that directly pours liquid molten steel into solid billet, mainly comprising ladle rotating table, tundish, crystallizer, vibration device, secondary spraying system, straightening machine, dummy bar, cutting equipment, billet discharging device, water-cooled transmission roller and other parts.

[0003] The crystallizer molten steel liquid level calibration is an important link before continuous casting production, and inaccurate calibration can cause overflow, leakage or large liquid level fluctuation during continuous casting, which causes quality problems, and the cesium source liquid level control system is currently used for automatic control of the molten steel liquid level in the crystallizer, and the liquid level calibration tool generally comprises simulation block, support plate, screw rod, rotating handle and ruler.

[0004] When using, the support plate is erected on the end face of the crystallizer as support, the handle is rotated, the simulation block is gradually sent into the inner cavity of the crystallizer through the screw rod transmission, then the position of the simulation block is repeatedly measured by ruler or box ruler, and the height of the simulation block is adjusted by rotating the handle.

[0005] However, the measurement method is low in efficiency, large in labor intensity and slow in calibration speed, the position of the simulation block needs to be reciprocally adjusted manually and measured by ruler or box ruler, and the worker's health is affected by being exposed to the cesium source range during each measurement. INVENTION CONTENTS

[0006] To solve the problems in the prior art, the utility model provides a continuous casting machine crystallizer liquid level calibration tool.

[0007] The utility model provides a kind of continuous casting machine crystallizer liquid level calibration tool using the following technical scheme:

[0008] A kind of continuous casting machine crystallizer liquid level calibration tool, including the fixed baffle placed on the opening on the end face of crystallizer, fixed baffle is opened in slide hole and is vertically slid in slide hole and is vertically slid in slide hole Screw rod is vertically slid in slide hole, the plane is provided with scale line along the length direction on the one side of screw rod, screw rod bottom is connected with simulation billet, screw rod is screw connected with upper adjusting nut and lower adjusting nut, upper adjusting nut is located above fixed baffle, and rotating handle is fixedly connected on upper adjusting nut, and lower adjusting nut is located below fixed baffle.

[0009] By adopting the technical scheme, the upper adjusting nut can be driven to rotate by rotating the rotating handle, and then the simulated steel billet is driven to ascend and descend in the copper pipe of the crystallizer, and the staff can intuitively observe the height value of the simulated steel billet through the scale line, so that the steps of measurement by using a ruler or a box ruler are simplified, the calibration efficiency is improved, and the risk of exposure to cesium source due to measurement is avoided.

[0010] Optionally, the screw rod top end is vertically fixed with a carrying handle.

[0011] By adopting the technical scheme, the carrying handle and the screw rod are fixed together, which is convenient for manual carrying during continuous multi-flow calibration, and can significantly save manpower and calibration time.

[0012] Optionally, the rotating handle is symmetrically provided with two, and the two rotating handles are reversely inclined and upwardly extended.

[0013] By adopting the technical scheme, the two rotating handles are convenient for two staffs to simultaneously operate the rotating handle, and the convenience of operation is improved.

[0014] Optionally, the screw rod bottom end is fixed with a connecting block, and the connecting block bottom end is fixed with the simulated steel billet.

[0015] By adopting the technical scheme, the stability of connection is improved.

[0016] Optionally, the connecting block is a welded square iron.

[0017] By adopting the technical scheme, the material is convenient to obtain, and the connection and fixation are convenient.

[0018] Optionally, the sliding hole shape and size are matched with the screw rod cross section shape and size.

[0019] By adopting the technical scheme, the screw rod and the simulated steel billet are more stably moved up and down.

[0020] In summary, the utility model has at least one of the following beneficial technical effects:

[0021] The height value of the simulated steel billet can be judged by observing the scale line on the screw rod, the steps of measurement by using a ruler or a box ruler are simplified, and the calibration efficiency is improved;

[0022] The risk of exposure to cesium source due to measurement by the staff is avoided;

[0023] The carrying handle is convenient for manual carrying during continuous multi-flow calibration, and can significantly save manpower and calibration time. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 is the overall structure schematic diagram of the continuous casting machine crystallizer liquid level calibration tool in the embodiment of the utility model.

[0025] Figure 2 is a structural schematic view of a screw rod in the embodiment of the utility model.

[0026] Mark explanation: 1, crystallizer end face, 2, fixed baffle, 3, screw rod, 30, plane, 31, scale line, 4, connecting block, 5, analog billet, 6, upper adjusting nut, 7, rotating handle, 8, lower adjusting nut, 9, carrying handle. DETAILED DESCRIPTION

[0027] The following will be combined with the Figure 1 - attached Figure 2 The utility model is further explained in detail.

[0028] The utility model embodiment discloses a continuous casting machine crystallizer liquid level calibration tool. Figure 1 And Figure 2 The continuous casting machine crystallizer liquid level calibration tool includes the fixed baffle 2 placed on the opening of the crystallizer end face 1, the fixed baffle 2 is vertically slid in the slide hole and is provided with the screw rod 3, the plane 30 is formed along the length direction on one side of the screw rod 3 by cutting, the cross section of the screw rod 3 is an incomplete circle, the slide hole and the screw rod 3 are matched in shape and size, and a plurality of scale lines 31 are sequentially drawn on the plane 30 along the length direction, so as to facilitate the staff to observe the distance value.

[0029] Refer to Figure 1 The connecting block 4 is welded and fixed at the bottom end of the screw rod 3, the connecting block 4 adopts square iron welding, the analog billet 5 is welded and fixed at the bottom end of the connecting block 4, and the analog billet 5 can be lifted along the extension direction of the copper pipe when descending into the crystallizer copper pipe. The upper adjusting nut 6 is threadedly connected to the screw rod 3, the upper adjusting nut 6 is located above the fixed baffle 2 and movably abuts against the top surface of the fixed baffle 2, two rotating handles 7 are welded and fixed on the upper adjusting nut 6, the two rotating handles 7 are symmetrically arranged and reversely inclined to extend upward, and the upper adjusting nut 6 can be rotated by rotating the rotating handle 7.

[0030] Refer to Figure 1 The lower adjusting nut 8 is also threadedly connected to the screw rod 3, the lower adjusting nut 8 is located below the fixed baffle 2 and is used for limiting the lifting range of the analog billet 5, and the lower adjusting nut 8 movably abuts against the bottom surface of the fixed baffle 2. The carrying handle 9 is also vertically welded and fixed at the top end of the screw rod 3, and the staff can transfer the tool to the position needed to be used through the carrying handle 9, so as to improve the convenience of transfer.

[0031] The implementation principle of the continuous casting machine crystallizer liquid level calibration tool is: the tool is placed on the crystallizer end face 1, the position of the lower adjusting nut 8 is adjusted and determined, and the simulated billet 5 is placed in the crystallizer copper pipe. Then the rotating handle 7 is rotated, the position of the upper adjusting nut 6 is adjusted, thereby the relative height of the simulated billet 5 in the crystallizer copper pipe is changed, the height value of the simulated billet 5 can be judged by observing the scale line 31 on the screw rod 3, the steps of measurement by using a ruler or a box ruler are simplified, the calibration efficiency is improved, the risk of exposure to cesium source due to measurement is avoided, meanwhile, the carrying handle 9 and the screw rod 3 are welded together, manual carrying is convenient during continuous multi-flow calibration, and manpower and calibration time can be significantly saved.

[0032] The above are preferred embodiments of the utility model, and do not limit the protection scope of the utility model, so that: equivalent changes made according to the structure, shape and principle of the utility model should be covered in the protection scope of the utility model.

Claims

1. A continuous caster mould level calibration tool characterised in that: The utility model relates to a fixed baffle (2) is placed on the opening of crystallizer end face (1), is equipped with screw rod (3) in the vertical sliding of slide hole of fixed baffle (2), is equipped with scale line (31) along the length direction on the plane (30) of one side of screw rod (3) along the length direction, is connected with analog billet (5) on the bottom of screw rod (3), is threadedly connected with upper adjusting nut (6) and lower adjusting nut (8) on screw rod (3), upper adjusting nut (6) is located above fixed baffle (2), is fixed with rotating handle (7) on upper adjusting nut (6), lower adjusting nut (8) is located below fixed baffle (2).

2. A continuous caster mould level calibration tool according to claim 1, characterised in that: The top of screw rod (3) is vertically fixed with carrying handle (9).

3. A continuous caster mould level calibration tool according to claim 1, characterised in that: Rotating handle (7) is symmetrically provided with two, and two rotating handle (7) extends reversely and inclines upward.

4. The continuous caster mould level calibration tool of claim 1, wherein: The bottom of screw rod (3) is fixed with connecting block (4), and the bottom of connecting block (4) is fixed with analog billet (5).

5. A continuous caster mould level calibration tool according to claim 4, characterised in that: Connecting block (4) is square iron welding.

6. The continuous caster mould level calibration tool of claim 1, wherein: The shape and size of slide hole are matched with the shape and size of the cross section of screw rod (3).

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