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Creato da fernandoshives il 10/08/2011
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When we select drying machine, it's important to give consideration to item equipment since drying method is composed of drying equipment as well as accessory equipment. Proper selection of accessory equipment is also a critical link. In general condition, dehydrating system is mainly composed of venting equipment, heating equipment, host, gas-solid separator, supplying equipment and and so forth. Enhancement of energy fee as well as regulation on contamination limitation, working condition and procedure security are all directory related to industrial dryer design as well as selection. When it comes to gas, fluidizing dryer might cause contamination because of dirt exception to this rule. In some places, even vapor isn't permitted. The general requirement inside exhaust exclusion is grime density should not surpass Twenty to 50 mg/Nm3 and high productivity filter is required. What's crucial is that it fits for harsh particle drying in certain problem. The larger particle the longer passing away time it is. On an additional hand, it suits for powder material drying. This adopts cyclone separator, bag filter as well as antistatic dust collector for airborne debris gathering and air is purified. Cyclone separator Cyclone separator is widely applied in convention spray dryer. It is the main appliance accumulating products from gas. Cyclone separator can be of simple structure and simple manufacture. As long as it is realistically designed and properly manufactured, it may acquire much high separation efficiency. As for air regarding high dirt content, it can also be separated directory and has much little pressure loss. As there is no moving part, it really is durable and lasting. Cyclone separator can also be called centrifugation separator which takes use of slender powder current as centrifugal pressure in rotation movement to be able to separate gas from lean powder. To speak strictly, moving condition of current internal cyclone separator is much complicated. Because centrifugal velocity caused by centrifugal force is lots even thousands times of slipping velocity under gravity push, slim powder is dissociated through rotation airflow and split up when it falls along cyclone separator wall structure. Airflow begins to reversal if it reaches cone end portion, gradually rotating inclines lastly excludes from liters tracheal. The smaller cyclone separator size, the quicker inlet rate is. The more rotation occasions, the smaller separator particle size is. Regarding actual cyclone separator, because of airflow problems and wall friction, particle uneven arrangement, particle and also wall rebounding reaction and shape affect, separator critical diameter isn't that accurate. There is also blended right into a part of slim particles throughout separated material. Bag separator Handbag separator is often taken as very last air-solid separator equipment to separate powder item from drying exhaust. Oahu is the last defense to indentify powder from exhaust. Handbag separator has characteristic of high catching efficiency. It can say that within massive air-solid separator equipment, its recording efficiency is incomparable by other equipments which is particularly the case when it comes to particle capture under 20μm whose performance reaches 99%. Bag separator is mainly composed of filter, bag shelf and shell. Shell is constituted involving box and gas chamber. Bag separator is installed in panel between box and gasoline chamber. After dirt petrol enters box, function of inertia, diffusion, adhesion and static powder gives adheres on filter fabric surface. Clear gas will be excluded from gas slot provided by penetrating from filter pore so that powder dust dispatches filtration system cloth and falls directly into hopper by counter blowing or perhaps vibration.
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