VOGO Perspectives
Screw conveyor
engineering insights.
Clear thinking on conveying, powder handling and the details that make industrial systems work.

Air-Slide Fabric Specification: Compare Permeability
Specify air-slide fabric with a common pressure and test basis, active-area flow example, construction limits and a practical replacement acceptance checklist.
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Fly-Ash Solidification: Specifying Leaching Tests
Choose a leaching-test basis for solidified fly ash: TCLP, pH dependence or monolith release, with a specimen record and laboratory procurement checklist.
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Rotary Airlock Leakage: Choosing a Venting Arrangement
Decide whether rotary-airlock leakage needs venting, define the air destination and pressure basis, and request supplier evidence before sizing a vent.
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Belt Conveyor Starting Torque Calculation
Calculate pulley torque and running power from effective belt tension, then qualify loaded starting torque, acceleration, traction and drive duty.
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Concrete Batch Temperature and Ice Calculation
Estimate ice substitution for a target concrete batch temperature with a labelled heat-balance example, plant checks and supplier data requirements.
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Pulse-Jet Dust Collector Valve Troubleshooting
Diagnose a missing, weak or continuous cleaning pulse by separating controller, solenoid pilot, diaphragm valve, manifold and air-quality faults.
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Aggregate Moisture Correction for Concrete Batching
Correct aggregate and added-water batch masses from measured moisture and absorption. Includes an SSD-based example, control record and verification steps.
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Butterfly Valve Pressure Drop and Cv Calculation
Calculate a preliminary liquid-service Cv, then check opening-specific capacity, piping geometry, cavitation and actuator duty before selecting a butterfly valve.
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Gear Reducer Oil Viscosity Selection and Changeover
Select industrial gear oil from the reducer manual, operating viscosity, temperature and lubrication method. Includes a decision table and changeover checklist.
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Batch vs Continuous Dry Mortar Mixing: Selection Guide
Compare batch and continuous dry mortar mixing by dosing, recipe changes and accepted campaign output, with a worked example and supplier trial checklist.
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