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Automatic ash removing device for blast furnace top imaging

A technology for automatic dust removal and blast furnace, which is applied in the direction of inspection equipment, improvement of process efficiency, closed-circuit television system, etc., and can solve problems such as prone to dust accumulation, dust sticking, and affecting the use effect of furnace top imaging

Inactive Publication Date: 2011-08-03
LAIWU IRON & STEEL GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Existing blast furnace roof imaging devices generally rely on nitrogen for air cooling and at the same time purge the dust at the front of the camera. This method has a small purge area and is affected by nitrogen pressure fluctuations. In the environment, on the protective cover in front of the camera lens, it is easy to cause dust to stick and accumulate, and eventually block the camera lens, resulting in blurred and incomplete images
[0003] Through the investigation, it was found that the blast furnace roof imaging devices designed and produced by various domestic manufacturers are prone to dust accumulation after a period of operation on the blast furnace with high load, which seriously affects the use effect of the furnace roof imaging
For example, in the article "Application of Blast Furnace Roof Camera on No. It is specifically mentioned that the camera is easy to accumulate dust, making the image of the furnace top unclear

Method used

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  • Automatic ash removing device for blast furnace top imaging
  • Automatic ash removing device for blast furnace top imaging
  • Automatic ash removing device for blast furnace top imaging

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Such as figure 1 As shown, a blast furnace top imaging automatic cleaning device includes a driving device 1, a rotating shaft 4 and a cleaning scraper 7, which is characterized in that the driving device 1 is connected to the rotating shaft 4 outside the blast furnace, and the rotating shaft 4 passes through the blast furnace. The fixed shaft sleeve 5 is installed inside the blast furnace; the rotating shaft 4 is located at the boundary between the inside and outside of the blast furnace with a furnace inside and outside sealing chamber 3 to prevent gas leakage; the front end of the rotating shaft 4 is fixed by a fixed screw 6 to fix the dust removal scraper 7. The dust removal scraper 7 is located at the front end of the lens of the blast furnace roof imaging camera (usually placed in the blast furnace roof). When the driving device 1 rotates, the rotating shaft 4 is driven to rotate. The dust removal scraper 7 connected to the front end of the rotating shaft 4 It also ...

Embodiment 2

[0035] The difference is that the driving device 1 is a hydraulic driving device; the shape of the cleaning scraper 9 is linear.

Embodiment 3

[0037] A working method of timing and positioning the drive device and cleaning scraper in the above device through PLC, such as figure 2 As shown, the steps are as follows:

[0038] 12. Start;

[0039] 13. Set counter C 0 The initial state is 0; (C 0 (The setting value is the specified number of rotations of the scraper)

[0040] 14. Motor operation;

[0041] 15. The sensor sends a counting signal to the PLC, counter C 0 Start counting. When the count does not reach the set value, execute step 16 and return to step 14; when it reaches the set value, execute step 17 and enter step 18;

[0042] 16, C 0 State is set to 0;

[0043] 17, C 0 Status is set to 1;

[0044] 18. The motor stops rotating, and the scraper stops at a precise position;

[0045] 19. Timer T 37 Start timing; (T 37 The timing time is the time interval from the stop of the motor to the next operation)

[0046] 20. Judge T 37 State; if the timing time is not up, then T 37 The status is 0, return to step 19; when the time i...

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PUM

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Abstract

The invention relates to an automatic ash removing device for blast furnace top imaging, belonging to an auxiliary device of a television monitoring system. The automatic ash removing device comprises a driving device, a rotating shaft and an ash removing scraper, wherein the driving device is arranged outside a blast furnace and is connected with the rotating shaft; the rotating shaft is arranged in the blast furnace by a fixed shaft sleeve of the blast furnace; the rotating shaft is provided with a sealing chamber inside the blast furnace and a sealing chamber outside the blast furnace at the boundary of the inside and the outside of the blast furnace to prevent gas leakage; the ash removing scraper is fixed at the front end of the rotating shaft by fixing screws and is positioned at the front end of a camera lens for blast furnace top imaging; when the driving device rotates, the rotating shaft is driven to rotate so that the ash removing scraper rotates correspondingly to effectively scrape the dust accumulated at the front end of the lens; a position sensor is installed on the rotating shaft, and the rotating shaft is connected with a PLC; and the rotation of the rotating shaft is controlled by the PLC. The device can effectively remove the dust accumulated in front of the camera lens for blast furnace top imaging; and after the device operates for a long time on the spot, the result proves that the device has a reliable ash removing function and obtains a clear and complete video image.

Description

Technical field [0001] The invention discloses a blast furnace top imaging automatic dust removal device, which belongs to an auxiliary device of a television monitoring system. Background technique [0002] The smelting intensity of the blast furnace is continuously increasing, and the environment in the furnace is getting worse. Existing blast furnace top imaging devices generally rely on nitrogen for air cooling while purging the dust at the front of the camera. This method has a small purging area and is affected by nitrogen pressure fluctuations. It can be used in high temperature, high humidity, and high dust. Under the environment, the protective cover in front of the camera lens is likely to cause dust to stick and accumulate, which will eventually block the camera lens, resulting in blurred images and incomplete imaging. [0003] Through investigations, it is found that the blast furnace top imaging devices designed and produced by domestic manufacturers are prone to dust...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C21B7/24H04N7/18
CPCY02P10/20
Inventor 栾鲁民孙式伟崔巍魏绍红卢仕源李振强杜瑛李丽王炜煜孙亚蕾刘文武齐敏李莉芝
Owner LAIWU IRON & STEEL GRP