1、附录 附录 A(英文文献) Heating Temperature Measurement of Slab Rotary Furnace in BTCO Xu Zhanhai. Liu Guangting (Baotou Iron and Steel (Group) Corporation Seamless Steel Tube Plant, Baotou 014010, China) Abstract: the ring of continuous casting billet heating furnace actual temperature within the test equipm
2、ent and methods to the CCS application, for example, analyzed the effect of furnace heating current, the corresponding improvements, and to explore the mathematical model control and the delay strategy. Keywords: Annular Heating: Temperature test: mathematical models: delay strategy; black box Key w
3、ords: TC307 Document code: A Article ID :1001 -6988 (2009) 03-0007-02 Heating Temperature Measurement of Slab Rotary Furnace in BTCO XU Zhan-hai, LIU Guang-ting (Seamless Stell Tube Plan, t (Group) Corporation., Baotou 014010, Chin, a) Abstract: The high temperature measurement equipment and method
4、for the heating of continuous casting slab in the annular furnace are introduced. Based on the examples of applications in BTCO, the heating effect is analyzed, the advanced means are given, and the mathematical model and delay strategy are discussed. Key words: annular furnace; temperature measurem
5、ent; mathematical model; delay strategy; black box Rail steel furnace operation optimization goal is to meet the requirements of rolling process and the billet cross-section billet heating temperature under conditions of temperature of the furnace fuel consumption at least. Unable to accurately gras
6、p the billet heating furnace curve. Commonly used method is by measuring the surface temperature on the slab after the release into the value or billet rolling mill billet heating conditions to estimate the situation. Happens to be rolling in the furnace, people will have big operating blindness, in
7、 order to time out of steel, often leaving a large surplus amount of temperature will not only result in waste of fuel, and burning by oxidation, such as billet damage, sometimes resulting in steels. Billet heating furnace through the process of testing and results analysis, quantitative research bi
8、llet gas temperature distribution and variation of temperature in the furnace and billet cross-section corresponding relationship between temperature variation, the influence of different types of factors and the quality of billet heating furnace structure problems, as the furnace yield, low cost, h
9、igh-quality, less oxidation to provide diagnostic methods and improvements. In this paper, high temperature temperature tester (black box), Steel Plant of Baotou Steel billet heating furnace ring dynamic temperature testing, analysis billet in the furnace temperature profile throughout the heating p
10、rocess to identify the existing problems and solutions . An experimental test equipment and methods 1.1 Experimental equipment High temperature test equipment by the SMT box recorder and insulation components, also called black box. Temperature Recorder Temperature range: K-type temperature range -1
11、00-1 290 , resolution of 0.5 , measurement error 0.5%: S-type temperature range of 0 1 450 ; resolution of 1.0 , measurement error 0.5%; Channels 14 channel; memory, 64 kB; temperature data 43 000: sampling cycle 25 / sl times / 8 h; data loggers working conditions, the temperature 1300 for 6h. 1.2
12、Experimental Methods Experiments selected ingredients, size and representative as the experimental billet billet. Living in the billets of different temperature settings and different depth holes to play, while measurement of the integrated steel billet furnace gas temperature at the top. Using K-ty
13、pe thermocouple, or S-type thermocouple, dual wire letter l.0 mm, insulated porcelain jacket. Recorder through the computer program, set the sample period is 1 / 20 s. Couple the hot end of the billet temperature firmly into the hole. The cold side of the positive and negative with the recorder corr
14、esponds to the positive and negative connections. At the same time recorder to record the number of channels represented by the interface billet temperature hole locations. Incubator placed in the billet ends. Cabinets filled with fire-resistant fiber felt. Blank experiment, after the release and th
15、rough the roller crane is located in the experimental blank space to move, standing for some time after the temperature drop box, remove the recorder. With the computer connected to the recorder to save data to a computer, come to billet heating curve and the temperature change in the direction alon
16、g the curve of the furnace. 2 Experimental results and analysis Diameter ring furnace 35 m, with high coke mixed gas fuel. Experimental billet size Q270 mmx3 300 mm, made of XCQ-16, rolling specifications for the West 219 mmx5 700 mm. Billet in the furnace experiment time 200 min. Baked slab temperature 1 280 , baked in the temperature difference on the slab 5 . 2.1 billet heating curve Billet placed in the real seabed. Billet center temperature and surface