Microwave technology in the production of the latest applications of lead
The earliest microwave equipment mainly used in food processing , the use of microwave heating of food substances quickly back to temperature , drying, sterilization , extraction , curing, baking , extraction, reminders of special processing Chen et al , in which the most extensive drying , followed by sterilization, it is the use of microorganisms and enzymes microwave restriction caused by corruption ; ripening , heating return temperature , etc. according to the processing of objects , some of the special effects by microwave ( eg ripening , thermostat and thawing ) for processing ; baking and puffing is the use of microwave higher temperatures generated directly to the purpose of processing.
Microwave microwave sintering technique is a special band with fine wave structure of basic material coupled with heat loss dielectric material so that the whole material is heated to sintering temperature to achieve densification method is rapid preparation of new materials and of high quality preparing a new re- performance techniques of traditional materials . It has a low sintering temperature , sintering time is short, energy efficiency and high heating efficiency , safety and health pollution.
Microwave wood drying equipment can be 1-6 cm thick planks with a uniform, rapid drying , microwave drying just 10 minutes , and does not crack and deformation is small, while inside the timber to kill insect eggs and larvae ; also for plywood or curing puzzle glued wooden crafts bamboo products processing and drying , destroy mildew and sterilization .
Microwave sterilization at lower temperatures insecticide. Can handle food, medicines, tobacco , wood, etc. , heating speed from the material thickness, shape effects .
The carbon particles in the flue gas as small size , about 0.01 ~ 0.2μm, can be suspended in the air long , easily through the respiratory system and the alveolar deposition in the human body , highly carcinogenic effects. Foreign working on a carbon particulates collected by microwave heating of the collector, when the carbon particles accumulated to a certain extent , it can automatically burn , the collector of the filtering effect of carbon particles 60% to 90% of the carbon particulate collector exhaust gas purification effect is very obvious , the current diesel exhaust pollution is important, combined with our current level of technology , it is necessary to carry out research and development and application.
Microwave drying equipment for treatment of sludge , no heat , and outside with heat , no heat loss characteristics of the thermal transfer process , as compared with conventional heating methods , microwave heating , high thermal efficiency . Therefore , in the production process of waste water treatment , microwave heating can be used to replace conventional heating and drying the sludge dewatering .
Studies have shown that microwave heating can be used for mechanical dewatering of sewage sludge treatment , and the effect is particularly significant. Fu big release and other reports, the undigested sewage sludge into the microwave heating 45min, the direct effect of reducing the moisture content of sludge . After mechanical dewatering of sludge drying with microwaves , water from 75 % to 50%, low processing cost , and the time is short, simple equipment .
Therefore, the microwave heating for drying sludge , is technically feasible , economically comparable with conventional methods , the use of microwave heating treatment after mechanical dewatering sewage sludge, the sludge can be achieved not only of agricultural fertilizer , bagged oriented , but also for sewage sludge utilization explore convenient and efficient new way.

 

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