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Steel liquid level correcting device for crystallizer, and using method thereof

A technology of calibration device and mold, applied in the field of continuous casting, can solve the problems of inability to guarantee the complete consistency of the installation positions, inability to guarantee, etc., and achieve the effect of ensuring accuracy, ensuring effectiveness, and facilitating precise control.

Inactive Publication Date: 2020-12-11
ZHANGJIAGANG HONGCHANG STEEL PLATE CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the detection device has been improved to increase the detection sensitivity, when it is applied to a multi-strand continuous casting machine, it cannot guarantee that the installation position of the detection device on each stream is exactly the same, so it cannot be guaranteed that when the liquid level detection heights of the control streams are consistent, each The actual liquid level of the flow is also consistent

Method used

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  • Steel liquid level correcting device for crystallizer, and using method thereof
  • Steel liquid level correcting device for crystallizer, and using method thereof
  • Steel liquid level correcting device for crystallizer, and using method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] The crystallizer liquid level correction device of the present embodiment, the device comprises:

[0051] Crystallizer 1, which is provided with crystallizer copper tube 10;

[0052] A liquid level detector 2, which includes a radiation source 20 arranged on one side of the mold copper tube 10 and a receiver 21 arranged on the other side of the mold copper tube 10;

[0053] Also includes a correction device 3, which includes:

[0054] Billet mold 30, which is placed in the crystallizer copper tube 10;

[0055] Support frame 31, which is placed directly above the crystallizer copper tube 10;

[0056] Screw mandrel 32, which runs through support frame 31 and is threadedly connected with support frame 31, and one end of screw mandrel 32 is rotationally connected with billet mold 30 top;

[0057] The handwheel 33 is fixedly connected with the other end of the screw mandrel 32 .

[0058]Due to the high temperature environment and the characteristics of molten steel durin...

Embodiment 2

[0064] The crystallizer liquid level correction device of this embodiment is further improved on the basis of Embodiment 1. The correction device 3 also includes a support frame slider 34, which is fixedly connected to the bottom of the support frame 31, and the screw rod 32 runs through the support The frame slide block 34 is also threadedly connected with the support frame slide block 34.

[0065] Such as figure 2 Shown, by arranging support frame slide block 34, increase the screw connection length between screw mandrel 32 and support frame 31 and support frame slide block 34, because billet mold 30 weight is bigger, set up support frame slide block 34, evenly share the support frame The downward load borne by the threads of 31 reduces the resistance when the screw mandrel 32 rotates, facilitates the adjustment of the height of the billet mold 30 by the rotation of the handwheel 33, and further facilitates the correction operation.

Embodiment 3

[0067] The crystallizer liquid level correction device of this embodiment is further improved on the basis of Embodiment 2. The support frame 31 also includes a buffer seat 310, which protrudes downwards and is formed on the bottom surface of the support frame 31. The buffer seat 310 is an elastic structure.

[0068] The steel billet mold 30 has a relatively high mass. When the support frame 31 is placed, the buffer seat 310 composed of an elastic structure can effectively buffer and prevent the deformation of the support frame 31 under impact force from affecting the accuracy of subsequent calibration operations.

[0069] Further, the buffer seat 310 can be an elastic structure with a buffer function such as a spring.

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Abstract

The invention discloses a steel liquid level correcting device for a crystallizer, and a using method thereof, and belongs to the technical field of continuous casting. The device comprises a crystallizer and a liquid level detector, as well as a correcting device body, a support frame, a screw rod and a hand wheel; a crystallizer copper pipe is arranged in the crystallizer; the liquid level detector comprises a radioactive source arranged on one side of the crystallizer copper pipe, and a receiver arranged on the other side of the crystallizer copper pipe; the correcting device body comprisesa steel billet mold arranged in the crystallizer copper pipe; the support frame is arranged right above the crystallizer copper pipe; the lead screw penetrates through the support frame and is in threaded connection with the support frame, and one end of the screw rod is rotatably connected with the top of the steel billet mold; and the hand wheel is fixedly connected with the other end of the screw rod. Through the correcting device, during detection with the liquid level detector, an approximately ideal molten steel environment is simulated in the crystallizer copper pipe, and interferenceof molten steel fluctuation, difficulty in height control and other factors during detection is avoided; the effectiveness of detection data is guaranteed; through the correcting device, the actual heights of datum planes determined in all flows are consistent; and the subsequent control accuracy of the steel liquid level in the crystallizer copper pipe is ensured.

Description

technical field [0001] The invention belongs to the technical field of continuous casting, and more specifically relates to a crystallizer liquid steel level correcting device and a using method thereof. Background technique [0002] In metallurgical continuous casting, mold liquid level control is one of the important factors to ensure the quality of continuous casting, especially for multi-strand continuous casting machines, in order to ensure product quality, it is necessary to unify the liquid level of each stream of molten steel in the copper tube The location is the same. [0003] The molten steel level in the mold is usually detected by radioactive sources and receivers. For multi-strand continuous casting systems, radioactive sources or receivers need to be replaced when they are damaged, and they also need to be disassembled during overhaul. When installing , it is impossible to ensure that the position of the radioactive source or receiver of each stream is instal...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22D11/18
CPCB22D11/18
Inventor 盛伟
Owner ZHANGJIAGANG HONGCHANG STEEL PLATE CO LTD
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