The use of recycled aluminum rotary kiln ash can improve the yield and purity

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Aluminum or cast aluminum in the production process will generate a lot of dross, we called this gray aluminum dross, aluminum ash contains high levels of aluminum, commonly used is the big Guochao ash method, fried ash process, will produce a lot of smoke, not only pollute the environment, but also a direct impact on human health, there is a relatively low-cost method is to use the direct combustion of coal ash to speculation, but if it can not burn coal, gas li contains large amounts of carbon monoxide gas, as well as a lot of smoke, which is a direct result of recycled aluminum root causes of environmental pollution, with rising coal prices, coupled with the dangers of pollution, the use of coal-burning technology for the processing of recycled aluminum production has been phased out. As people's environmental awareness, and now many companies have started using the strength of the rotary kiln equipment recycling aluminum ash, not only greatly improve the yield and purity of aluminum, the environment has also been very good improvement. This will require some adjustments to make energy saving rotary kiln. Rotary equipment adjustment process, should also be on the cylinder temperature, prop shaft tile temperature, kiln speed, mass, pressure hydraulic gear wheels and other relevant data are recorded, but also on the bearing oil film formation, kiln vibration status No data The parameters were observed, in order to compare the changes before and after adjustment, combined with the vibration of the adjustment process kiln changes. If the parameters are becoming better after several adjustments, the corresponding adjustment to increase the intensity, or should be transferred back. According to the above programs and through more than a week after the adjustment, rotary vibration situation has significantly improved. Rotary equipment due to the adjustment process is the process of kiln shell correction, the adjusted belt roller and wheel will change the situation by force, it should be a "trace several times while adjusting while watching" principle to adjust. Rotary dryer Adjust the value and frequency of specific preliminary determined as follows: each adjustment angle 15 °, daily maximum adjustment angle 90 °, observed after adjustment for the next day or so and then adjust. Kiln measurement process there are some errors, the measurement results and the ideal centerline deviation is too large, it is not to measure the results of the data as a standard to be adjusted for the occasional round, but the results can be measured as an orientation. Rotary equipment considering Ⅱ file roller centerline deviation from the ideal is relatively small and the vibration is smaller, so to Ⅱ files based on roller Ⅰ, Ⅲ file roller adjustment. The above article by Henan YuFeng Heavy Machinery finishing release, reproduced, please indicate the source