Noddy factory direct QJ Hollow Blade Dryer

 Roddick Drying Equipment Co. Changzhou hollow paddle dryer is a kind of conduction-based horizontal mixing dryer. The main structure is W-shaped casing with a jacket that has the pair of hollow low speed rotation of the hollow shaft, the shaft welding a number of stirring blades, stirring all through the hollow jacket and heat carrier, two heating surface while the inner blade material called hot. Hot air is usually from the middle into the hollow paddle dryer, was stirred by the state of the material layer surface, the other side is discharged. Hollow paddle dryer main features of the device structural hollow paddle dryer is compact, small footprint device. Seen by the device structure, the heat required for drying is mainly provided by the densely arranged in the hollow shaft of a plurality of hollow blade wall, and wall heat transfer only a small portion of the jacket. Therefore, heat transfer equipment unit volume is large, it can save floor space, reduce capital investment. 2, hollow paddle dryer heat utilization high. Drying heat required is not provided by the hot gas, the hot gas away reducing heat loss. Due to the compact construction equipment and assistive devices small, heat loss is reduced. Heat utilization up to 80% -90%. 3, hollow paddle dryer having a wedge-shaped blade self-purification capacity, can increase the heat transfer effect of the blades. Dispersion force rotating blades inclined surface and particle or powder layer joint motion generated by the heated material adhered to the inclined plane easily cleared automatically, so the blade to maintain efficient heat transfer function. In addition, since the two counter-rotating shaft paddle alternately compress segment (in both axes when the blade bevel away recently) and expanded (when the two-axis blade surface distances) material on an inclined plane, the heat transfer near the surface of the material is intense agitation and improve the heat transfer. Wedge-shaped stirring paddle dryer heat transfer coefficient higher, 85-350W / (M2? K). 4, hollow paddle dryer gas with less, can reduce or omit the corresponding portion of the auxiliary equipment. Since the need to heat the gas, thus greatly reducing the amount of gas in the drying process. Wedge paddle dryer is used to carry only a small amount of gas to evaporate moisture. Gases in very small quantities, just to meet the operating temperature under dry conditions, no dew condensation drying system. Since the gas with less, a dryer gas flow rate is low, less dust is entrained by the gas, dry gas dust system to facilitate the recovery of the cyclone can reduce the size, eliminating or reducing baghouse. Gas heaters, blowers and other size can be reduced, saving equipment investment. 5, wide hollow paddle dryer adaptability of materials, products, uniform drying. Dryers equipped weir, according to the material properties and drying conditions, adjusting the amount of material retained within the dryer. Retention capacity of the material inside the dryer allows the cylinder volume of 70% -80%, increase the residence time of materials to meet the difficult requirements of dried material and drying high-moisture materials. In addition, also adjust the feed rate, speed and temperature of the heat carrier shaft and so on, in a few minutes and a few hours between any selected residence time. So easy to dry and difficult to dry materials are applicable. Only 0.1% moisture content, has industrial application. In addition, although many stirring blades inside the dryer, mixed materials, however, the material in the dryer from the charging port to the discharge port substantially piston flow stream flow, narrow residence time distribution, product uniform drying. 6, hollow paddle dryer for a variety of drying operations. Wedge mentioned before the paddle can be adjusted by a variety of drying method of drying process conditions, and its operations than fluidized bed drying, air drying operation is easy to control, it is suitable for a variety of operations. 7. The abrasive powder material, compression resistance, internal friction and external friction and changing with the continuous removal of material moisture or solvents of various nature, and with the corresponding blade structure is the core hollow paddle dryer technology. For specific materials, using a special test methods to determine the appropriate blade structure. Applicable materials: 1, hollow paddle dryer is suitable inorganic chemical industry: calcium nitrate, calcium sulfate, paper, calcium carbonate, magnesium hydroxide, carbon black, iron black, iron red, soda, soda ash; 2, hollow blades drying machine for organic chemical industry: dyes, industrial plastics, polystyrene, polypropylene, high density polyethylene, polypropylene, etc.; 3, hollow paddle dryer is suitable smelting industry: nickel concentrate powder, sulfur powder concentrate, Tar phenol removal; 4, hollow paddle dryer suitable food, medical industry: starch, pharmaceuticals, salt, protein, 5, there are other: sludge, waste, chicken feed, distillers and other inorganic chemical industry: calcium nitrate, sulfate calcium, paper, calcium carbonate, magnesium hydroxide, carbon black, iron black, iron red, soda, soda ash and the like;