Development Of The Dynamic Parameter Measuring Instrument Of Rotary Kiln

Rotary kiln is the kernel producing equipment of metallurgy, chemical industry, architecture material etc. The operating character is of kiln is running extendedly and continually over more supporting points. And the straightness and precision of the axis is the very important condition to guarantee the kiln operating by rule and line. But after a period time of working, the position and straightness of the kiln will be influenced by several things like: different subsidence depth of the supporting frusta, imprecise adjusting of the supporting wheel, abrasion of the supporting parts. And the distortion of axis will consumedly increase the abrasion of the equipment, even crack the canister and shorten the kiln shell's life. So it's necessary and very important to detect the axis periodically. And dynamic measuring of the axis of rotary kiln will not only avoid the huge financial loss, but also give preventive maintenance to the kiln and keep it from suddenly stop accident.This paper analysed the factors that influence the center axis of the rotary kiln and researches the dynamic parameter measurement methods of rotary kiln home and abroad. Found that ours is easy to carry out and the cost is low. Then confirmed the blue print of dynamic parameter measurement system of rotary kiln based on KAS.And finds that the variational temperature of the canister and the abrasion of the mechanical parts is the main reasons that inflect the axis of the kiln. To adjust the dynamic axis of the kiln needs to measure the parameters bellow: diam of the left & right supporting wheels, diam of the cinctures around the wheels, clearance between the wheels and the cinctures, position of the cinctures, deflection of the gear. And we analyse the methods to measure the parameters and to calculate the data of axis.Based on the research of the method to measure rotary kiln center axis, we chose the measuring system made up of P89C668 single chip. The principle of the circuit and the processing of the program are construed in detail.We deeply researched and analysed the dummy instrument technology, did a lot of work in data collection. And designed each module of the application based on LABVIEW platform, generally including communication of the SCM and the computer based on LABVIEW, data processing, data input and output etc. Debugging of the program of measuring system is completed and the method of creating the executable file based on LABVIEW is put forward.