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Converter automatic tapping method and converter system

A converter, automatic technology, applied in steel manufacturing process, manufacturing converter, metal processing and other directions, can solve the problems of affecting molten steel quality, poor manual operating environment, causing accidents, etc., to prevent furnace overflow accidents and reduce workers. The effect of labor intensity and accident reduction

Active Publication Date: 2021-11-05
WISDRI ENG & RES INC LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There is no scientific basis for manual control of the converter angle. If the manual shaking of the furnace is too fast, the slag or molten steel will easily overflow from the furnace mouth, causing accidents; , the slag floating above the molten steel is drawn into the steel flow and falls into the ladle, which affects the quality of the molten steel, and also causes the flow rate of the steel flow to be too low, resulting in longer tapping time
The position of the manual console car is mainly based on the naked eye observation of the steel flow and the center of the ladle on the trolley. The temperature of the steel flow is high, the radiation is large, the site is dusty, the noise is loud, the manual operation environment is poor, and it is easy to fatigue, which may cause molten steel to spill out of the ladle. accident

Method used

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  • Converter automatic tapping method and converter system
  • Converter automatic tapping method and converter system
  • Converter automatic tapping method and converter system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Such as Figure 1-Figure 3 , the embodiment of the present invention provides a method for automatic tapping of converter, comprising the following steps:

[0035] S1, the converter 1 is tilted, 3D scanning is performed on the furnace mouth and the inside of the furnace, a 3D model is established based on the scanned data, and the center coordinates of the furnace mouth and the melt level data are obtained by calculation; the furnace mouth is monitored to prevent slag from overflowing from the furnace mouth. Wherein, preferably, the above-mentioned 3D scanning operation is completed by a furnace mouth 3D scanner 2, the furnace mouth 3D scanner 2 is installed on the platform behind the furnace, more preferably installed on the axis of the converter below the rear platform of the furnace; in one of the embodiments , the furnace mouth 3D scanner 2 can adopt 3D scanning equipment such as an object profiler based on the TOF principle, which can be purchased from the market, ...

Embodiment 2

[0056] Such as figure 2 , the embodiment of the present invention provides a converter system for realizing the above-mentioned automatic tapping method of the converter, including a converter 1, the converter 1 is equipped with a slag lowering detection device 6 and a slag blocking device 11, and further includes:

[0057] Furnace mouth 3D scanner 2, installed on the platform behind the furnace, used for 3D scanning of the furnace mouth and furnace during the tapping process of the converter and building a 3D model based on the scanned data;

[0058] Furnace mouth infrared camera 3, installed on the platform behind the furnace, used to take infrared images of the furnace and the furnace mouth during the tapping process of the converter;

[0059] The converter tilting angle detection device is used to detect the tilting angle of the converter 1;

[0060] Tapping control center 4, which receives the feedback information from the furnace mouth 3D scanner 2, the furnace mouth i...

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Abstract

The invention relates to a method for automatic tapping of a converter, comprising: tilting the converter, performing 3D scanning on the furnace mouth and the inside of the furnace, establishing a three-dimensional model based on the scanned data, calculating and obtaining the coordinates of the center of the furnace mouth and the data of the molten liquid level; monitoring the furnace mouth to Prevent furnace mouth overflow; calculate the coordinates of the center of the tapping hole and the distance h between the center of the tapping hole and the molten liquid surface according to the converter furnace type and the center coordinates of the furnace mouth 1 ; with h s is the target value of the melt level, judge h s with h 1 The relative size between, if h 1 < h s , repeat S1~S3 until h 1 = h s , the converter stops rotating; if the furnace mouth overflows, the h s Make corrections; when the lower slag detection device detects that the slag content in the steel stream exceeds the standard, close the tapping hole and return the converter to its position. Accordingly, a converter system is provided. The invention can control the height of molten liquid level in the furnace continuously and in real time, and is simple, controllable and reliable in operation. While realizing automatic tapping, it can effectively prevent furnace mouth overflow accidents and greatly shorten the tapping time.

Description

technical field [0001] The invention belongs to the technical field of converter smelting, and in particular relates to a converter automatic tapping method and a converter system for realizing the converter automatic tapping method. Background technique [0002] After the converter is smelted, it is necessary to tilt the furnace body through the tilting mechanism, so that the molten steel in the furnace flows out from the tapping hole under the furnace cap to the ladle on the trolley under the furnace. This operation process is called the converter tapping operation. The main requirements for the tapping operation are: (1) slag is not allowed to flow out from the tapping port; (2) slag or molten steel is not allowed to flow out from the furnace port; (3) the tapping time is as short as possible; (4) the console car moves Ensure that the molten steel will all fall into the ladle, that is, the falling point of the steel flow is preferably kept in the center of the ladle. [...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C21C5/28C21C5/46
CPCC21C5/28C21C5/4673C21C2300/06Y02P10/25
Inventor 蔡炜
Owner WISDRI ENG & RES INC LTD