Calibration method for measurement accuracy of online argon blowing flowmeter in continuous casting crystallizer

A continuous casting mold, argon blowing flow technology, applied in liquid/fluid solid measurement, measuring device, test/calibration device, etc., can solve the problem that the factory does not have the conditions and qualifications for self-calibration of flowmeters, the continuous casting production process is passive, Calibration is not realistic and other problems, to achieve the effect of facilitating large-scale promotion and application, saving work time, and eliminating tedious steps

Active Publication Date: 2019-11-19
SHANGHAI MEISHAN IRON & STEEL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the argon flowmeter is a high-precision measurement tool, and most factories do not have the conditions and qualifications for self-calibration of the flowmeter.
It must be disassembled and sent to a professional department for calibration
However, continuous casting is a continuous production process. In order to calibrate the flowmeter, it is complicated and cumbersome to disassemble and send it for calibration every time. It is not realistic to send it repeatedly for calibration.
However, if the accuracy of the flowmeter is not calibrated, the inaccuracy of the flow rate will also lead to passive control of the continuous casting production process.

Method used

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  • Calibration method for measurement accuracy of online argon blowing flowmeter in continuous casting crystallizer
  • Calibration method for measurement accuracy of online argon blowing flowmeter in continuous casting crystallizer
  • Calibration method for measurement accuracy of online argon blowing flowmeter in continuous casting crystallizer

Examples

Experimental program
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Embodiment 1

[0032] Example 1: The on-site argon gas control box feels abnormal, or has not been corrected for a long time, and the process technicians have certain doubts about the authenticity of the current flow display. Utilize the present invention to solve as follows:

[0033]1) Select an electronic flowmeter with the same model and measurement accuracy as the online argon gas measuring device, and after calibration and testing by a professional department, follow the figure 1 Assembled; the calibration device includes a box, the box is provided with a handle, the inside of the box is provided with a stabilized power supply (6) and a mass flow regulating valve (1) mass flowmeter (7), and the box is provided with There is an electronic display screen (4) for flow display during measurement, and an external pipeline (3) for connecting argon gas is arranged in the box.

[0034] 11), according to figure 1 The installation shown is equipped with a mobile online calibration device, and t...

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Abstract

The invention provides a continuous casting crystallizer online argon blowing flow meter measuring precision correction device comprising a box body; the box body is provided with a handle; a voltage-stabilized power source (6), a mass flow rate adjusting valve (1) and a mass flow meter (7) are arranged in the box body; the box body is provided with an electronic display screen (4) for flow display in measurement; the box body is inside provided with an external pipe (3) for intake of argon.

Description

technical field [0001] The invention relates to a correction device, in particular to a measurement accuracy correction device and a correction method of an online argon-blowing flowmeter for a continuous casting crystallizer, and belongs to the technical field of continuous casting control. Background technique [0002] In the existing continuous casting process, the mold is the most critical equipment for the continuous casting process to convert the molten steel provided by the converter into a slab. The continuous casting process divides the molten steel in the tundish, injects the molten steel into the crystallizer through the submerged nozzle at the bottom of the tundish, and cools the copper plate of the crystallizer to form a slab with a certain shell thickness and an internal liquid core. The slab is pulled out after secondary cooling in the runner, thus completing the entire continuous casting production process. The argon blowing technology in the crystallizer is...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01F25/00
Inventor 邹世文宣海林
Owner SHANGHAI MEISHAN IRON & STEEL CO LTD
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