Transfer chutes are used in many industries to facilitate bulk material transfer from one conveyor belt to another or for redirecting flow from a delivery point (e.g., feeder, screw conveyor) into a process or equipment (e.g., centrifuge, dryer, screener, etc.). Though the transfer chute itself may appear to be only a small or low-cost part of the equipment train, it can easily become a costly bottleneck and maintenance nightmare due to:
- Plugging or buildup
- Abrasive wear of chute or liner
- Spillage and dust emission
- Belt off-tracking
- Particle attrition (breakage)
Jenike & Johanson specializes in evaluating your chute applications, whether troubleshooting complex problems or developing new chute designs. Review our solution approach below, which is based on proven bulk material theories, cutting-edge proprietary discrete element modeling (DEM) analyses, material flow properties, and decades of experience designing and implementing transfer chutes that work from the start and operate trouble-free for years.
Jenike & Johanson provides effective functional engineering for transfer chutes considering:
- Configuration that meets your needs (e.g., throughput, spatial constraints)
- Critical bulk material flow properties that help specify key chute design features
- Internal chute surfaces (liners to resist wear or reduce sticking/buildup)
- Flow controlling geometry required to prevent material plugging, stream spillage, belt off-tracking, and reduce dusting
- Use of hood and spoon stream control technology maintain reliable material flow from head pulley discharge to receiving belt delivery – our technology innovation developed nearly 30 years ago! (US patent #4646910) – check out this video of abrasion resistant hood in action with iron ore
- DEM analysis with OUR proprietary in-house developed model that uses key bulk material flow properties and model calibration
- Design for highly abrasive iron ore that is either cohesive and at times saturated, or bone dry and dusty – transfer rate of 24000 MTPH (3 cubic meters per second!)
- Anti-segregation hopper/transfer chute design for feeding highly segregating powdered metal to a multi-ton compaction press for making PM green compacts
- Chute redesign at cement plant import terminal that must handle abrasive clinker, dusty bituminous coal, and highly cohesive synthetic gypsum
- Transfer chute design for handling highly interlocking agriculture products (green hay and dry straw) at truck dump receiving station
- Abrasion resistant chute design with unique hood with rock-box feature for minimizing damage when handling iron ore
- Abrasive wear analysis with accurate DEM analysis to assess liner longevity
After completion of the chute’s functional design, Jenike & Johanson can provide mechanical and structural design services that result in drawings needed for fabrication. This additional engineering task is a vital step for achieving successful chute implementation.
Contact us to discuss our full-range of engineering services and how we can strive to meet your transfer chute needs.