CN2896240Y - Radar molten-steel level detection system - Google Patents
Radar molten-steel level detection system Download PDFInfo
- Publication number
- CN2896240Y CN2896240Y CN 200620096300 CN200620096300U CN2896240Y CN 2896240 Y CN2896240 Y CN 2896240Y CN 200620096300 CN200620096300 CN 200620096300 CN 200620096300 U CN200620096300 U CN 200620096300U CN 2896240 Y CN2896240 Y CN 2896240Y
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- radar
- molten steel
- microwave
- steel level
- molten
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Abstract
The utility model relates to a radar molten steel inspection system, which also comprises an antenna probe 1 that is used to send the radar microwave and a transmission receiving module 2 that provides microwave signal source and receives echo signal, wherein the antenna probe 1 is positioned at the top of the molten steel level under test so that the microwave sent by the antenna probe and the molten steel level under test are vertical or nearly vertical to each other and antenna probe 1 is connected to the transmission receiving module 2 through the waveguide tube 7 high-frequency cable. The radar molten level inspection system is characterized in the: 1. Measurement is continuous and accurate, the media under test is not contacted, the impact from the temperature, pressure and gas is small and accuracy is within a variance of 1mm; 2. The maintenance is convenient and the operation is simple. The installation position is far from the high-temperature molten steel, so the maintenance and part replacement are seldom; 3. The application scope is wide and the non-contact measurement has well directionality and low conveyance attrition. Application can be made to the molten level inspection system in the bale, the medium bag and the crystallizer.
Description
Technical field
The utility model relates to molten steel liquid level detection technique field, radar molten steel liquid level detection system in particularly a kind of continuous casting process.
Background technology
In continuous casting process molten steel liquid level testing process, adopt following several detection methods usually: 1, penetrate the source method, its advantage is to be fit to little base continuous casting system, the measuring accuracy height, and good stability, its shortcoming is that radioactive source has certain harm to operating personnel; 2, electric vortex method, its advantage are not subjected to the influence of covering slag on the liquid steel level when being measurement, "dead" influence, and the measuring accuracy height, its shortcoming is that ranging is less, is not suitable for little base continuous casting system; 3, weight method, its advantage are that the molten steel liquid level that is suitable for Da Bao, middle bag is measured, and simple, intuitive, its shortcoming are that measuring accuracy is not high.
Summary of the invention
The purpose of this utility model provide a kind of install simple, can real-time continuous measure and the high radar molten steel liquid level detection system of precision.
Described radar liquid steel level detection system comprises signal processing module 3, computing machine 4, display module 5 and control module 6, it is characterized in that: described liquid steel level detection system is a kind ofly to detect the device of liquid steel level with Radar Technology, and this device also comprises one in order to the antenna probes 1 of transmission radar microwave be its transmitting and receiving module 2 that microwave signal source is provided and receives echoed signal; Antenna probes 1 is arranged on tested liquid steel level end face, the microwave that makes antenna probes send is vertical with tested liquid steel level or be bordering on vertical, antenna probes 1 is connected with transmitting and receiving module 2 by waveguide 7 high frequency cables, and antenna probes 1 also is connected with the reflected microwave signal of tested liquid steel level.
Described radar molten steel liquid level detection system adopts Microwave Measurement Technique, antenna probes sends microwave signal, when arriving liquid steel level, produce reflection, microwave signal after the reflection is received by antenna probes, the time that microwave is transmitted into reception can be converted to distance, is converted into the molten steel in mold liquid level and is shown.Be characterized in:
1, measure continuously accurately, it is very little not contact and be subjected to temperature, pressure, gas etc. to influence with measured medium, and accuracy is within ± 1mm;
2, easy to maintenance, simple to operate, the installation site is away from high-temperature molten steel, so less maintenance and replacing parts;
3, applied widely, non-contact measurement, good directionality, loss is little, can be used for Da Bao, middle bag and molten steel in mold liquid level detection system;
4, install simply, for example mould liquid level is detected, on hiring a car in can being directly installed on;
5, can provide signal to stopper, slide plate or casting process speed control.
Description of drawings
Fig. 1 is the utility model structural representation,
Fig. 2 is the utility model principle side cabinet figure,
Fig. 3 is the utility model circuit diagram.
Among the figure: the 1-antenna probes, 2-launches successive module, 3-signal processing module, 4-computing machine, 5-display module, 6-control module, 7-waveguide, 8-stopper, the 9-molten steel mouth of a river, 10-crystallizer, 11-intermediate tank bag, 12-radar molten steel liquid level detection system.
Embodiment
The utility model is described in further detail to engage accompanying drawing below: among Fig. 1: radar antenna probe 1 is arranged on and tested liquid steel level upright position, radar antenna probe 1 is connected with transmitting and receiving module 2 by the high frequency cable in the waveguide 7, and radar antenna probe 1 also is connected with the reflected microwave signal of tested liquid steel level.
Among Fig. 2,3, transmitting and receiving module 2 is responsible for the generation and the reception of high-frequency signal, antenna probes 1 is responsible for transmitting and receiving of signal, the signal that receives is sent to signal processing module 3 and handles, extract useful information, measure distance between antenna probes and the tested liquid steel level by the specific algorithm of computing machine 4 operations simultaneously, send display module 5 demonstrations, computing machine 4 is by control module 6 output control signals, control stopper 8 or other equipment.
The radar molten steel liquid level detection system course of work is: the continuous wave of antenna probes emission linear modulation, when the echo of liquid steel level was received by antenna probes, the antenna transmission frequency changed.Signal processing is handled echoed signal and the mixed signal that transmits, by measuring the mixed signal frequency spectrum, calculate mixed signal with fast Fourier transform (FFT), therefrom the mixed signal frequency spectrum is analyzed, exclude undesired signal, determine distance and the demonstration of antenna then, thereby finish measurement to reflecting interface.Show as Fig. 1,2, radar molten steel liquid level detection system adopts Microwave Measurement Technique, antenna probes sends microwave signal, when arriving liquid steel level, produce reflection, microwave signal after the reflection is received by antenna probes, and the time that microwave is transmitted into reception can be converted to distance, is converted into the molten steel in mold liquid level and is shown.
Claims (1)
1. radar liquid steel level detection system, comprise signal processing module (3), computing machine (4), display module (5) and control module (6), it is characterized in that: described liquid steel level detection system is a kind ofly to detect the device of liquid steel level with Radar Technology, and this device also comprises one in order to the antenna probes (1) of transmission radar microwave be its transmitting and receiving module (2) that microwave signal source is provided and receives echoed signal; Antenna probes (1) is arranged on tested liquid steel level end face, the microwave that makes antenna probes send is vertical with tested liquid steel level or be bordering on vertical, antenna probes (1) is connected with transmitting and receiving module (2) by waveguide (7) high frequency cable, and antenna probes (1) also is connected with the reflected microwave signal of tested liquid steel level.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620096300 CN2896240Y (en) | 2006-04-21 | 2006-04-21 | Radar molten-steel level detection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620096300 CN2896240Y (en) | 2006-04-21 | 2006-04-21 | Radar molten-steel level detection system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2896240Y true CN2896240Y (en) | 2007-05-02 |
Family
ID=38065816
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620096300 Expired - Fee Related CN2896240Y (en) | 2006-04-21 | 2006-04-21 | Radar molten-steel level detection system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2896240Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103510125A (en) * | 2012-06-19 | 2014-01-15 | 贵阳铝镁设计研究院有限公司 | Apparatus for monitoring interface of molten aluminum in aluminum electrolysis tank in real time by adopting radar |
| CN103562693A (en) * | 2011-06-24 | 2014-02-05 | 株式会社尼利可 | Molten metal level measurement device and molten metal level measurement method |
| CN106768180A (en) * | 2016-12-30 | 2017-05-31 | 上海自动化仪表有限公司 | Guided wave extends radar levelmeter |
| CN107063390A (en) * | 2016-12-30 | 2017-08-18 | 上海自动化仪表有限公司 | Flexibility extension radar levelmeter |
-
2006
- 2006-04-21 CN CN 200620096300 patent/CN2896240Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103562693A (en) * | 2011-06-24 | 2014-02-05 | 株式会社尼利可 | Molten metal level measurement device and molten metal level measurement method |
| CN103562693B (en) * | 2011-06-24 | 2016-01-06 | 株式会社尼利可 | Level of molten metal determinator and molten metal bath position measuring and modelling method |
| CN103510125A (en) * | 2012-06-19 | 2014-01-15 | 贵阳铝镁设计研究院有限公司 | Apparatus for monitoring interface of molten aluminum in aluminum electrolysis tank in real time by adopting radar |
| CN106768180A (en) * | 2016-12-30 | 2017-05-31 | 上海自动化仪表有限公司 | Guided wave extends radar levelmeter |
| CN107063390A (en) * | 2016-12-30 | 2017-08-18 | 上海自动化仪表有限公司 | Flexibility extension radar levelmeter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070502 Termination date: 20110421 |