A method for dynamic tracking of processing gas flow center and monitoring method of gas utilization rate
A gas flow center and dynamic tracking technology, applied to blast furnace components, furnaces, inspection devices, etc., can solve problems such as lack of statistical laws, inability to fully represent blast furnace conditions, and lack of gas flow center distribution characteristics to affect the measurement. Online control and high degree of visualization, high accuracy, strong real-time effects
Active Publication Date: 2017-03-15
INNER MONGOLIA UNIV OF SCI & TECH
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Problems solved by technology
The existing technology generally only extracts features from a small amount of infrared images under abnormal furnace conditions, and fuses them with the cross temperature measurement data to obtain the temperature field distribution of the material surface under different furnace conditions. It fully represents the complex blast furnace conditions, and there is no accurate measurement of the specific distribution characteristics of the gas flow center and the impact of the center distribution on the blast furnace
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[0034] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, so that those skilled in the art can better understand the present invention and implement it, but the examples given are not intended to limit the present invention.
[0035] The method for dynamically tracking the gas flow center and monitoring the gas utilization rate of the present invention comprises:
[0036] Step 1, data collection and processing: Online collection of infrared video production data, cross temperature measurement data and hourly average gas utilization rate within one month (720 hours), and infrared image data of 24 frames per second are obtained through image extraction.
[0037] Step 2, infrared image processing: perform batch superposition processing on the infrared image data obtained in step 1 to obtain 3600 frames per hour (1 frame / second) infrared images of gas flow, and perform mean and median filtering processing on...
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The invention discloses a method for processing coal gas flow center dynamic tracking and monitoring coal gas utilization rate. The method comprises the steps of 1 data collecting and processing; 2 infrared imagery processing; 3 temperature field calibration; 4 coal gas flow center dynamic tracking; 5 coal gas utilization rate monitoring. The method has the advantages that implementation is easy, temperature field calibration is achieved through the treatment on the collected infrared imagery combining crossed thermometry data and blast furnace design data, dynamic tracking on charge-level coal gas flow center fall point distribution is achieved, the coal gas flow center distribution characteristics and the corresponding coal gas utilization rates are classified, the relation between the coal gas center change and the blast furnace coal gas utilization rate is confirmed, real-time monitoring on the coal gas utilization rate is realized, the dynamic changing condition of the coal gas flow center and the relation between the dynamic changing condition of the coal gas flow center and the corresponding coal gas utilization rate can be recognized timely and accurately, on-line monitoring and visual control on the burden distribution operation of the blast furnace are achieved, and the advantages of being high in accuracy rate and strong in real-time performance are achieved.
Description
technical field [0001] The invention relates to a method for dynamically tracking the gas flow center and monitoring the gas utilization rate. Background technique [0002] Blast furnace production is a series of complex physical, chemical and heat transfer reactions carried out under high temperature and high pressure conditions. Because its internal smelting is a typical "black box" operation, it is difficult to realize real-time accurate positioning and control of the blast furnace throat gas flow center distribution. A reasonable central distribution of the gas flow is an important condition to ensure the stable decrease of the charge in the blast furnace, and the normal progress of chemical reactions and heat exchanges. At present, infrared cameras are installed in the blast furnace production of iron and steel enterprises. The purpose is to observe the position and changes of the blast furnace gas flow center in real time. The furnace director conducts production regu...
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IPC IPC(8): C21B7/24C21B7/00
Inventor 石琳温有斌李江鹏李明昕于涛张景赵广胜
Owner INNER MONGOLIA UNIV OF SCI & TECH