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以两段法等制作的普通煤气及化工、冶金企业中含可燃组分的废气等,都是低热值燃料。它们的高效燃烧和废热回收,需借助高活性催化剂支持的CST燃烧法以提高热效、降低空气污染,因而颇具实用价值。研制活性组分和优质载体是关键因素,要求前者有好的活化氧的能力,后者则比表面大且稳定。该技术用于热交换器,亦是节能领域一新举。 相似文献
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介绍了大型皮带运输机对驱动系统的要求、CST的结构和工作原理及其在大型皮带运输机中应用,提出了CST可控起动传输是大型皮带运输机驱动系统最好选择。 相似文献
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Enhanced sludge dewatering by dual polyelectrolytes conditioning 总被引:7,自引:0,他引:7
Sludge dewatering by dual polyelectrolytes conditioning was investigated in this study. Single polyelectrolyte is utilized in sludge conditioning conventionally, in which charge neutralization and bridging are involved in the reactions. In the current study, both cationic and non-ionic polyelectrolytes were utilized simultaneously in the conditioning. Waste activated sludge was sampled from a synthetic fiber plant, and used in the experiment. Capillary suction time (CST), specific resistance to filtration (SRF), and settling rate were used to evaluate the sludge dewatering behaviors. Zeta potentials were also measured. Sludge dewatering behaviors resulting from single and dual polyelectrolytes conditioning were compared. It was found that sludge conditioned with dual polyelectrolytes performed better in fine particle capture and in the formation of larger flocs that resulted in a better dewaterability and less chance of overdosing. The dosing sequence in dual polyelectrolytes also affected the sludge dewaterability. Reaction mechanisms in dual polyelectrolyte conditioning were proposed based on enhanced flocculation of sludge particles. 相似文献
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Output voltage is an important performance characteristic of planar insulating core transformer (PICT).In PICT magnetic cores are insulated from their neighboring magnetic cores by solid insulating materials.Solid insulating materials can increase leakage flux.This results in a low generated voltage in secondary coils,especially on the upper stages.Connecting flux compensation capacitors to secondary coils can compensate the flux loss.Design equations to calculate the flux compensation capacitors value and relevant simulation by CST and Protel software were presented.Simulation results of an actual PICT showed that output voltage increased by 19% after being connected to flux compensation capacitors and the voltage on every stage was equally distributed.Results of simulation were consistent with the following experimental test,which revealed that flux compensation capacitors were effective. 相似文献
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