Method and system for detecting sintering belt temperature in rotary kiln
A sintering belt and rotary kiln technology, applied in character and pattern recognition, instruments, computer components, etc., can solve problems such as unreliability, coal dust and smoke interference, lack of stability in sintering belt image quality, etc., to improve reliability , avoid errors, improve the effect of detection accuracy
Active Publication Date: 2013-04-03
DATANG INT POWER GENERATION +1
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[0004] In the prior art, the temperature detection method of the sintering zone in the rotary kiln, on the one hand, due to the complex environment in the industrial rotary kiln, the interference of coal powder and smoke is relatively large, resulting in the lack of stability in the image quality of the sintering zone collected, which has great influence on the sintering zone. The detection result of the temperature state is inaccurate; on the other hand, depending on the artificial experience value to judge the temperature state, due to the different artificial experience, the detection result of the temperature state of the sintering zone will also be inaccurate. The temperature detection method of the belt is not reliable and cannot meet the needs of actual industrial production.
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[0039] figure 1 The flow chart of Embodiment 1 of the method for detecting the temperature of the sintering zone in the rotary kiln provided by the present invention is as follows: figure 1 As shown, the method of this embodiment may include:
[0040] Step S101, collecting images of the sintering zone in the rotary kiln, and obtaining characteristic parameters of the sintering zone image according to the image of the sintering zone in the rotary kiln.
[0041] Specifically, in this embodiment, in order to detect the temperature of the sintering zone in the rotary kiln, an image acquisition device is first used to collect images of the sintering zone in the rotary kiln. Then take a certain frame of the captured image as the image of the sintering zone in the rotary kiln at that moment, and use the image processing technology to process the frame image to obtain the required characteristic parameters of the sintering zone image.
[0042] Step S102, according to the characteris...
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The invention provides a method and a system for detecting sintering belt temperature in a rotary kiln. The method comprises the following steps of: acquiring a sintering belt image in the rotary kiln, and obtaining the sintering belt image characteristic parameters according to the sintering belt image in the rotary kiln; obtaining the sintering belt characteristic parameters according to the sintering belt image characteristic parameters and thermotechnical data in the rotary kiln; and processing the sintering belt characteristic parameters according to data in a sintering belt temperature database by employing an extreme learning machine algorithm, and obtaining a sintering belt temperature state. The sintering belt characteristic parameters are processed by employing the extreme learning machine algorithm, and before the sintering belt temperature state is obtained, the sintering belt temperature database is constructed according to the previous data and expert advice. According to the method and the system for detecting the sintering belt temperature in the rotary kiln, the detection accuracy and reliability of the sintering belt temperature state in the rotary kiln can be improved.
Description
technical field [0001] The invention relates to temperature detection technology, in particular to a temperature detection method and system for a sintering zone in a rotary kiln. Background technique [0002] According to the characteristics of ore processing, the alumina production process is mainly divided into: Bayer method, sintering method and Bayer, sintering combined method. The sintering method is mainly used to process bauxite with high silicon content and low aluminum-silicon ratio. Clinker sintering is the key process of alumina production using sintering method, and clinker sintering production is organized around the rotary kiln. . [0003] During clinker sintering, the temperature of the sintering zone in the rotary kiln directly affects the quality of sintering. In the prior art, the temperature detection of the sintering zone in the rotary kiln mainly adopts the method of image recognition, and the camera is used to collect the flame image of the sinterin...
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Inventor 孙俊民孟繁逵韩黎明刘鑫平王文儒张小刚陈华刘爱民白瑜林
Owner DATANG INT POWER GENERATION