Tubular Drag Conveyors
Tubular Drag Conveyors are flexible and designed for versatility in gentle material handling operations. Tubular Drag Conveyors are mechanically driven conveyors that drag material along the inside of a tube. They are designed to transfer finely and not so finely divided, flowable bulk materials from in-feed points to discharge points through a totally enclosed conduit. Tubular drag conveyors are positive displacement devices using close-running discs connected by a cable or metal links. They have been used successfully throughout a range of industries for over fifty years.
A cable or chain with discs spaced along its length and its ends connected to each other to form an endless loop is pulled by a motor driven sprocket within an enclosed tube. Changes in direction are facilitated by bends in the tubing or by corner housings for tighter radii. Discharge of the product is through outlet boxes. Cable or chain and casing are routed back to the in-feed point in an endless loop.
Advantages
- Totally enclosed, dust-free, contamination-free handling
- Only Mechanical Conveyors that can operate in three planes, this permits complex circuits eliminating transfer points and using only a single drive
- Minimum horse power and energy consumption
- Can be meter or flood fed
- Handles hot, cold, wet, dry, hygroscopic or temperature sensitive materials
- May be fed at multiple points in a circuit
- Minimum noise level
- May discharge at multiple points in circuit (no air locks)
- No need for filters or cyclone to separate air and material as discharge gravity takes care of this
- Gentle conveying action - minimized product degradation
- Will not separate blends
- Round construction minimizes residual accumulation and build up.
- May operate under pressure differential or inert purge