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 Wysłany: Pią 18:17, 07 Sty 2011 Temat postu: jordan shoes Improvement of gas suspension calcine |
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Improvement of gas suspension calciner and performance optimization
New design burner roaster from 750t / d to refer to production, the main oven temperature stability obviously do not live in the 54t / h (A1 (OH) 3 water 12%) based on the material even under increased lt / hAl (OH ) 3 feeding, the main oven temperature decreased rapidly. Released by excessive burning of alumina. The problem is simple to blame the gas quality is bad, obviously not the root of the problem. The problem is that the combustion burner and the gas. K. H. D roaster is do not use gas fuel. With low calorific value gas as fuel is F. L. IDTH the technical characteristics of the combustion device is one of the key technologies this roaster. ,[link widoczny dla zalogowanych], As shown in Figure 1, the running state diagram, in Po1 upper part of CO,[link widoczny dla zalogowanych], 02 levels of instrumentation. Centralized control system in the roaster, the content control ID fan (rear fan ESP) of the throttle. When they have the linkage set the value higher than 02, indicating that the system air volume automatically close a small damper. This setting 0.5%, CO content and ESP chain, while driving to the value when the CO gas content is higher than the set value, the alarm again higher than the warning value,[link widoczny dla zalogowanych], the ESP power, gas should be reduced volume. This setting is 0.2%. In all of our actual operation, C02 test value of 0% to 0.15%, and 02 test values between O% ~ 0.2%. ID fan damper opening 4O% ~ 45%. Based on this data concluded that burning in good condition, linked to when (0H) 3 under the feeding amount is increased, gas is not on the increase, ID damper can not open big, the main oven temperature �� 9 1998 17 * drop in light metal status, indicating that insufficient gas supply. Zhongzhou Aluminum Roaster burning station is operated by a gas station and a combustion chamber composition. Furnace by a gas station,[link widoczny dla zalogowanych], three butterfly valves and control instruments constitute a group. PO4 chamber placed in the lower part, by the diameter of the cylinder and 8 ~ 1800mm Tsui burning composition, 8 burning Tsui two storeys, symmetrical distribution. Burning in Figure 5. Between the combustion gas station and a metal wire braided hose connections. Figure 5 and the burning of the combustion chamber burner nozzle is crucial in any furnace. Tsui appropriate form of burning, that the decision points for burning calories, but also determines the flame burning state. Tsui of the study and the flame burning determination of the state has always been a kiln workers seriously. F. L. IDTH coal-fired gas burning adoption Tsui shown in Figure 6, in its circular on the table with two rows of pores, pore diameter of ~ 20mm, each row of eight symmetrical distribution, the top and a hole of the gas holes 17, ventilation area of 56 .6 cm2, this state of spherical flame burning Tsui. Spherical flame edge of the repeat, repeat the local temperature is higher, in the hanging wall of the combustion chamber made of Al203 burned melting \The gas pressure required burning Tsui 2500mm (H2O), calorific value 5400kJ/Nm3. Tsui ventilation area when the fire is determined by the fluid mechanics know, air velocity: W: J2 (Po_fPi). ; 'F, gas flow: M = S. . / Where: p - fluid density; Po - total pressure; Pi - static pressure. This article does not make too much into the mathematical description and figures, but the formula can be obtained from the above relations, the total pressure when the pipe increases, other things being equal the flow through the large, otherwise d; o the scene to Zhongzhou Aluminum , the gas pressure to maintain year round 1700mm (H2O) so that only the value of the contract requirements. Under these conditions, the original design of the nozzle through the gas burning is clearly not reach the rating. We caution the top of the original hole burning Tsui expanded to ~ 80mm, the other unchanged. The flow of surface burning Tsui extend from the 56.5c 103.5cm2, the shape shown in Figure 7,[link widoczny dla zalogowanych], the combustion flame shape of football tables, fire short and thick and powerful. Almost no coverage. �� Figure 6 Figure 7 burning Tsui Tsui burning improved long-time operation, this burning Tsui burning well, stand by its stable form of combustion, heat capacity than the original design, the gas pressure is applied to a wide range of . PO4 mentioned temperature quickly, easily. In Po1 at CO, 02 CO monitoring instrument displays the value in the 0% ~ O. 15%, lower than the set value. We adopted the burner roaster capacity has been stable at 850t / d or more, up to 890t / d. 5 Conclusion We felt from the production practice, F. L. The calcined alumina IDTH's device into a device like Bimei jade, good quality, but also a good idea, but some rough places a number of knife. It therefore can not show the proper value. We practice - Summary - Improvement - more practice - and then improve the process, and finally to its pecking devices into the United States. Its performance to the world's most advanced level.
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