DLS shaftless screw or screw conveyors are an alternative.The concept of traditional shaft screw conveyor. Material conveyed by extra heavy duty shaftless screw sliding on the inner low friction, wear resistant lining chute housing. u-slots, they are longitudinally split, made of carbon steel or available in 304 l / 316 l stainless steel, including appropriate surface treatment. Manufactured parts other than screws, of which it is super heavy and medium heavy.
The cross section of the lower part of the groove is slightly wider than side channels to allow for lining insert the lower slot part. After assembly the lining of the slot is held in place by the upper slot side channel.
There is a vertical or flush type outlet at one tank end. On the drive end, the screw conveyor is equipped with an end plate for securing.the end bearing assemblies have threaded flange couplings. The installed drive unit is suitable for the application. ssc can be obtained from access to open sinks from above (standard), or through inlet spouts in bolted slot covers (optional), or from the side special side air inlet in the trough loading area (optional).
Shaftless Screw Conveyor Structure
Shaftless screw conveyor is mainly composed of shaftless screw, U-shaped spiral groove, cover plate, lining plate, inlet and outlet, discharge outlet and driving device.
Shaftless Screw Conveyor Type
Single shaftless screw conveyor screw shaft, without mixing and stirring functions.
Twin Shaftless Screw Conveyor It adopts double screw blades with mixing and stirring functions. The two screw blades rotate in opposite directions to avoid material blocking. The conveying capacity is 1.5-2 times that of a single shaft.
Different types of power transmission: direct drive, coupling drive, chain drive, belt drive
Different linings available: with wear signal, bottom strip or base plate, white or black plastic
Spiral guide rod
Shaftless Screw Conveyors VS Shafted Screw Conveyors
Shaftless is suitable for conveying sludge, household garbage, grid slag and other viscous, entangled materials and massive materials. It is precisely because the design of the shaftless screw conveyor without a central axis has great advantages for these materials. The shaft screw conveyor is suitable for conveying materials: powder, small particle materials, etc. If you convey viscous materials such as sludge, it will stick to the inner tube shaft and blades, and the conveying block materials are easy to jam.
Conveying form Shaftless screw conveyor is suitable for: horizontal conveying, and the large inclination angle should not exceed 20°, according to the actual usage. The shaft screw conveyor is suitable for: horizontal conveying, inclined conveying, and vertical conveying.
Conveying capacity Due to the use of shaftless, the single-machine conveying length of the shaftless screw conveyor can reach 60 meters, and the conveying capacity is 1.5 times that of the traditional shafted screw conveyor with the same diameter
Shaftless Screw Conveyors Application
Throughput rates: up to 65 m³/h (38 cfm) for sludge, up to 25 m³/h (15 cfm) for screenings
Drive power: 0.55 kW (0.75 HP) to 7.5 kW (10 HP)
Trough and spiral manufactured from carbon or stainless steel 304L or 316L