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Continuous type vacuum dryer and microwave vacuum drier workflow
Three processes are carried out from time to time, the material within the water (solvent) from time to time to penetrate to the surface, evaporation, discharge. Material in a very short period of time to achieve the purpose of drying equipment by the barrel and frame size hollow heating plate, spindle, cross arms and rake leaves, disc feeder, cutting disk and export of finished products, exhaust inlet, hot carrier outlet tubes, View door, worm gear reducer, continuously variable transmission and motor are composed. The main components of the device is hollow heating plate, welded hollow part baffle strengthened bulkhead, both to increase the stiffness and strength, but also improves the heat transfer effect, play a dry heat conductivity and high utilization.
  Continuous vacuum dryer
  The dried material at a low temperature quick freezing, freeze-drying is the use of the principle of drying a technique sublimated. Then in a proper vacuum environment, so that the freezing of the water molecules directly sublimated into the vapor escaping process. Freeze-dried to give the product referred to as a lyophilate sublimation process does not occur due to dehydration concentrated phenomenon, is prevented by the steam generating foam , oxidation, and other side effects. The dried material was dry sponge porous volume basically unchanged, easily soluble in water and restitution. The maximum level to prevent the degeneration of the physical, chemical and biological aspects of the dry matter. Before drying, the substance is always at a low temperature (frozen state), while the ice crystals are uniformly distributed in the material.
  Usually upper layers using a low-pressure saturated steam or hot water, hot oil, in series, parallel or series-parallel input heating both import and export of the heat carrier pipe, the layers on the heating pan. Control layers temperature; while the bottom Layer pass into the cooling water, in order to reduce the product temperature, and heat is recovered, and ensure quality. Heating plate at certain intervals fixed in the cylinder frame is horizontal placement, during which each floor are equipped with cross boom, upper and lower dislocation 45 ° staggered fixed in the center of the spindle by a worm gear reducer, CVT and motor drive slowly rotating 0.6 ~ 3.7r/min. Each jib tops how support detachable plow-shaped rake leaves or flat scraper, was equally spaced. Rake leaves of articulated and reed swing structure, so that the bottom edge as even floating disk, the angle can be adjusted according to material traits rake leaves, in order to ensure that the material in the disk is moving forward from time to time.
  A mechanical action of the rotary rake leaves, dried material from the top disc feeder continuously added to the device within the first layer of the uppermost of the heating plate on the inner ring disk. Roll side agitation, the side from time to time to move forward from the inside out, to a jagged covered the entire disk, get contact heating dry; then the material from the outer edge of the drop to the second layer below the heating coil outer ring disk, reverse the installation rake leaves under the action moved to the inner edge of the sequential and from the outside in, fell to the third layer of the small heating coil on the inner ring disk. And so on, so that the material layer by layer from top to bottom layer moving, continuous heating and drying.
  Final dry material moisture is evaporated and equipment the exhaust mixed from the upper entrance expelled naturally fall into the footwall. The rake leaves scrape the bottom of the discharge port of the continuous discharge, qualified dry waste. Based on product performance, drying requirements and disposal of the size of the plate dryer with a spindle stepless speed manual adjustment sets the height adjustment disc feeder, control layers heating plate temperature distribution, the end of a series of measures to cool-down, played a The superiority of the plate dryer.
  Microwave vacuum dryer
  The items of solid water (ice) and then under vacuum to sublimate directly into water vapor, the vacuum drier by the refrigeration system, vacuum system, heating system, electrical instrumentation and control system. The main components of the oven, condenser, refrigeration units, vacuum pumps, heating / cooling means. The working principle is to freeze dry goods to the triple point temperature below. Exclude from the article, the article is dry. Material through the pre-treatment, fed into the quick-frozen positions frozen, dry container and then into the sublimation dehydration after disposal workshop after packaging. Vacuum sublimation drying compartment to establish a low-pressure conditions, the heating system to the materials provided to the latent heat of sublimation, refrigeration system to provide the required amount of cold to the cold trap and drying chamber.
  Material is heated evenly; effective and efficient use of catching water-cooled trap, efficient radiant heating equipment. And achieve rapid defrost; efficient vacuum unit, and can realize the oil-water separator; parallel centralized refrigeration system, multiple on-demand cooling, stable conditions conducive to energy saving; using artificial intelligence control, high control accuracy, easy to operate. The freeze-dried product quality requirements are the same biological activity, uniform appearance and color, plump shape, solid structure, fast dissolving, low residual moisture. To obtain high-quality products, there should be a more comprehensive solution to the theory and technology of the freeze-dried.
  The tank slowly rotating freeze-drying vacuum drying process including pre-frozen, to sublimation and lyophilized three phased. Reasonable and effective to shorten the cycle of freeze-dried in industrial production has significant economic value. Vacuum dryer pass into thermal energy (such as hot water, low pressure steam or hot oil) heat within the shell passed by the dry material in a sealed sandwich. Power driven under. The purpose of tank material mixing from time to time, thereby to achieve enhanced drying the material in a vacuum state, the falling pressure and evaporates the water from the surface of the material (solvent) reached saturation, timely discharged by the vacuum pump.
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Tel:86.519-88906508 Fox:86.519-88902679 Add:Jiaoxi Changzhou Jiangsu Pro China P.C:213116

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