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Roots blower achieve good energy saving effect

Release date:2015-12-02 00:00 Source:http://www.zqlcfj.com Views:

  Cement mechanical calcining cement need wind, roots blower used for induced draft fan. Roots blower, according to data on cement plant's power consumption accounts for about 60% of the electricity consumed by calcining. Along with the rise in prices in recent years, electricity proportion in the cost of cement in up, fan energy saving is of great significance. But in the process of cement calcination, according to the working conditions at any time to snort valve or return air valve to adjust the excess air volume of fan, which caused a serious waste of energy. Because of the bad cement plant's environment, dust, use other control means there are a lot of problems, such as electromagnetic slip speed of large amount of maintenance, need to change the motor, low power factor, the constant torque load and energy saving effect is poor, wound rotor motor cascade speed regulation of large amount of maintenance, need to change the motor, low power factor, speed control type hydraulic coupler speed regulation to foundation treatment, low power factor, the constant torque load and energy saving effect is poor. In frequency conversion transformation of a cement plant roots blower, adjustment and frequency conversion adjustment by means of traditional measurement data analysis and fitting, energy saving calculation formula of calculation results and the measured very close. Gas transmission roots blower used is the heart of the coking plant, its role is to coke oven gas to air tank in the transport, and maintain a certain amount of coke furnace pressure. After adopting the measure, pipe into the negative pressure and positive pressure of outlet of tuyere are dropped. Roots blower, therefore, for the volume with blower, its operating characteristic has obvious difference with the centrifugal fan, because of the characteristics of roots blower load should be taken into account by the constant torque load. In order to achieve good energy saving effect, roots wind made using frequency control of motor speed to adjust air flow, especially the pressure of the fan when the adjusting range is larger, using frequency conversion speed regulating mode can obtain remarkable energy saving effect.


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