Automated Bulk Material Handling & Green Storage System | Sinograin Hainan FTP Dual-Complex Grain Hub
Key Highlights
Sinograin (China Grain Reserves Group) is developing a strategic dual-complex grain hub at Hainan Free Trade Port. The project required a high-capacity, eco-friendly, digitally automated bulk material handling and grain storage system to integrate imported grain reception, bonded transit and national strategic grain reserves.
GSS delivered a custom automated bulk handling, green storage and dust control system for imported grain and oilseeds. It comprises 1,000 t/h multi-discharge and silo-bottom air-supported belt conveyors, heavy-duty bucket elevators, anti-segregation distributors, green grain preservation devices, dust collection, screening & weighing equipment, and integrated PLC smart control.
The 1,000 t/h high-throughput mainlines streamline imported grain reception, bonded transit and reserve rotation; valve-controlled anti-segregation distributors and nitrogen controlled-atmosphere storage preserve grain uniformity and long-term quality; full dust extraction and smart digital control establish a green, digitized bulk logistics benchmark for the Hainan Free Trade Port.
Client Profile: Strategic Grain Logistics Hub of Hainan Free Trade Port
Located in the Yangpu Economic Development Zone of the Hainan Free Trade Port (FTP), the Sinograin Yangpu Complex comprises two synergistic facilities: the Yangpu Port Bonded Storage (adjacent to Berth 9 for customs supervision and bonded transit) and the Yangpu Direct Depot (dedicated to national strategic reserves and commercial logistics). Operating as a unified “Port Intake + Policy Reserve” hub, the complex safeguards national food security and streamlines South China’s international grain supply chain.
Goals & Challenges: 1,000 t/h Throughput & Anti-Segregation Green Storage
As a premier free trade port grain hub and national policy reserve, the dual-silo complex faced several universal industry challenges during high-volume handling and long-term storage:
- 1,000 t/h High-Capacity Intake & Rapid Bonded Transfer: Connecting deep-water berths with shallow-silo storage required continuous conveying mainlines capable of 1,000 t/h for seamless ocean vessel unloading, silo transfer, and multi-modal dispatch.
- Grain Segregation Prevention & Nitrogen Controlled-Atmosphere Storage: Free-fall loading in large shallow silos causes particle segregation (uneven density/moisture). The system required anti-segregation distribution paired with nitrogen-controlled atmosphere and chilled aeration for eco-friendly, long-term grain preservation.
- Full-Node Dust Suppression & SCADA Digital Interlocking : Transferring imported bulk grains generates dust across transfer towers, silo crowns, and discharge chutes. The facility demanded full-containment dust extraction compliant with free trade port environmental standards, fully integrated into a central SCADA network.
Customized Solution：GSS Integrated Bulk Logistics & Green Storage Package
To meet Sinograin’s heavy-duty operational, green storage, and environmental standards, GSS delivered a customized, complete bulk material handling and smart control package specifically engineered for imported bulk grains.
- 1,000 t/h High-Capacity Enclosed Conveying Mainlines : Installed 1,000 t/h top-silo multi-discharge belt conveyors for flexible grain distribution, 1,000 t/h bottom-silo air-supported belt conveyors (ASBC Series) leveraging air-cushion technology for low-power, dust-tight discharge, and heavy-duty bucket elevators for reliable vertical elevation.
- In-Silo Valve-Controlled Anti-Segregation & Green Storage Package : Integrated valve-controlled anti-segregation distributors inside shallow silos to eliminate grain pile density variations. Deployed mobile nitrogen generators, grain chillers, aeration networks, sweep augers, and recirculation fumigation systems for low-oxygen, chemical-free long-term preservation.
- Full-Node Dust Collection & Precision Auxiliary Logistics System : Engineered targeted ductwork networks, insertable dust collectors, flap dust suppressors, and baghouse collectors at all drop points. Equipped precision bulk scales, grain cleaners, quantitative oil transfer terminals, magnetic separators, and heavy-duty weighbridges.
- Centralized SCADA/PLC Smart Control System : Integrated a central SCADA/PLC architecture featuring real-time process visualization, automated safety interlocking, and one-touch sequential start-stop, establishing a fully digitized bulk logistics framework.
Project Value: Port-Reserve Synergy, Green Quality Preservation, and Digital Benchmarking
Port-Reserve Synergy & Seamless Logistics
The 1,000 t/h enclosed mainlines seamlessly bridge berth unloading, customs-supervised bonded transit, and national strategic storage, maximizing logistics throughput for the Hainan Free Trade Port.
Uniformity & Green Quality Preservation
Valve-controlled distributors paired with nitrogen-controlled atmosphere and chilled aeration eliminate grain segregation, maintaining temperature/moisture uniformity for chemical-free, long-term storage.
Digital SCADA Control
Complete node dust collection eliminated particulate escape, while SCADA one-touch automation reduced manual labor and enhanced logistics transparency, satisfying strict port environmental standards.
"Executing an integrated port storage and national reserve hub in Hainan Free Trade Port demands bulk handling equipment with ultra-high intake capacity, strict environmental compliance, and advanced green storage features. The complete bulk handling and smart control system provided by GSS has delivered outstanding performance across both our port storage and direct reserve bases. Its 1,000 t/h air-supported belt conveyors handle grain transfer rapidly without spillage, while the anti-segregation distributors and nitrogen systems maintain exceptional grain uniformity. GSS has provided solid technical backing for our national food security mission at the Free Trade Port." — Project Management Team, Sinograin Yangpu Complex
