Storage Silo
Storage Tanks
Product Overview
Storage Silo / Storage Bin
Materials are fed into the top of the silo body and stored by gravity flowing downward. The cone bottom design allows materials to concentrate toward the discharge outlet under gravity for easy unloading. For materials prone to arching, arch-breaking devices (vibrators, pneumatic breakers or agitators) operate intermittently or continuously to break up material arches and keep discharge flowing smoothly. Level gauges monitor material levels in real time, and dust collectors capture dust generated during filling and discharge, maintaining pressure balance inside the silo and a clean working environment.
Widely applicable to: chemical powder storage, plastic pellet storage, food powder storage, feed raw material storage, building material powder storage, metallurgical powder storage, etc.
Equipment features: large capacity with small footprint, cone bottom design facilitates unloading, configurable with various arch-breaking methods, enclosed storage prevents moisture and contamination, customizable materials and accessories.
Technical Description
Materials enter the silo through the top feed inlet and are stored by gravity flowing downward. The cone bottom design allows materials to concentrate toward the discharge outlet under gravity for easy unloading. For materials prone to arching, arch-breaking devices (vibrators, pneumatic breakers or agitators) operate intermittently or continuously to break up material arches and keep discharge flowing smoothly. Level gauges monitor material levels in real time, and dust collectors capture dust generated during filling and discharge, maintaining pressure balance inside the silo and a clean working environment.
| Type | Features | Application |
|---|---|---|
| Cone bottom silo | Conical bottom, materials discharge by gravity | Free-flowing powders and granular materials |
| Flat bottom silo | Flat bottom, requires screw discharger | Free-flowing, non-arching granular materials |
| Screw discharge silo | Flat bottom + bottom screw conveyor discharge | Large capacity, continuous quantitative discharging required |
| Fluidized bed bottom silo | Cone bottom with fluidization plate and air injection | Powder materials prone to arching with poor flowability |
| Type | Features | Application |
|---|---|---|
| Carbon steel silo | Low cost, surface anti-rust and anti-corrosion treatment | Non-corrosive materials such as building materials, feed |
| Stainless steel silo | Corrosion resistant, meets food hygiene standards | Food, pharmaceutical, corrosive chemical powders |
| Lined silo | Carbon steel body with plastic or rubber lining | Slightly corrosive conditions with limited budget |
| Concrete silo | Large capacity, long service life | Fixed large-volume long-term bulk storage |
| Effective Volume (m³) | Design Pressure | Design Temp (°C) | Silo Diameter (mm) | Total Height Approx. (mm) |
|---|---|---|---|---|
| 5～15 | Atmospheric | -20～80 | 1800～2500 | 4000～6000 |
| 20～50 | Atmospheric | -20～80 | 2800～3500 | 6000～9000 |
| 60～100 | Atmospheric | -20～80 | 3600～4500 | 9000～12000 |
| 120～200 | Atmospheric | -20～80 | 4600～5500 | 12000～16000 |
| 200～500 | Atmospheric | -20～80 | 5600～7500 | 15000～22000 |
Note: Actual dimensions may vary based on cone angle, discharge outlet size, arch-breaking device requirements, etc. Customization available.
| Parameter | Specification |
|---|---|
| Cone angle | 45°～60° (determined by material angle of repose) |
| Discharge outlet diameter | 150～500mm (determined by discharge rate) |
| Feed inlet diameter | Determined by matching equipment |
| Surface treatment | Internal polishing Ra≤0.8μm (food grade) / Sandblasting (chemical grade) |
| Support type | Leg support / Skirt support / Frame support |
| Dust removal method | Top bag filter / Cyclone separator |
| Level measurement | Radar level gauge |
| Applicable Region | Voltage | Frequency |
|---|---|---|
| China/Russia/Central Asia | 380V | 50Hz |
| Middle East/Southeast Asia/Africa | 400V / 415V | 50Hz |
| South Korea | 380V | 60Hz |
| Americas (if required) | 440V / 480V | 60Hz |
Please specify local voltage and frequency when placing order.
| Component | Common Brands | Features & Application |
|---|---|---|
| Gear reducer (for agitation breaking) | SEW (Germany), NORD (Germany), Guomao | Helical gear type, low noise, high efficiency |
| Vibration motor (for vibration breaking) | Quality local brands | Adjustable vibration force, timer-controlled start-stop |
| Level gauge | Siemens, E+H, quality local brands | Radar type: high accuracy; Rotary paddle: economical and practical |
| Dust collector | Quality local brands | Bag filter with high filtration efficiency, up to 99%+ |
| Discharge valve | Quality local brands | Butterfly valve / Slide gate valve |
| Air treatment components (for pneumatic breaking) | SMC, Airtac | Pneumatic hammer / Air jet, suitable for easily arching powders |
Customer brand preferences can be specified. For pre-owned equipment, availability depends on inventory.
Typical Applications
Chemical industry: Plastic pellets (PE/PP/PVC), calcium carbonate, talc powder, titanium dioxide powder and other powder/granule storage
Food industry: Flour, starch, sugar powder, milk powder, seasoning powder storage (meeting food hygiene standards)
Feed industry: Corn meal, soybean meal powder, fish meal, premix and other raw material storage
Building materials: Cement, fly ash, sand powder, lime powder and other bulk material storage
Metallurgical industry: Mineral powder, alloy powder, coke powder storage
| Standard | Description |
|---|---|
| GB 50128-2014 | Construction standard for vertical cylindrical steel welded storage tanks |
| GB/T 150-2011 | Pressure vessels (applicable with slight positive pressure) |
| GB 16749-1997 | Bellows expansion joints for pressure vessels |
| ISO 9001:2015 | Quality management system |
| CE | Available upon request for international orders |
| EAC | Available upon request for Russia and Central Asia markets |
| GOST-R | Available upon request for Russian market |
| Food grade certification | Available upon request for food grade silos (FDA / GB 4806.1 food contact material standard) |
| Option | Details |
|---|---|
| Arch-breaking method | Vibration breaking (vibration motor), Pneumatic breaking (pneumatic hammer/air jet), Agitation breaking (agitator), Fluidized bed breaking (fluidization plate + air injection) |
| Discharge method | Direct gravity discharge, Screw conveyor discharge, Rotary valve discharge, Vibrating feeder discharge |
| Level measurement | Radar level gauge, Rotary paddle level gauge, Tuning fork level gauge, Ultrasonic level gauge |
| Dust removal configuration | Top bag filter, Pulse jet dust collector, Cyclone separator |
| Temperature detection | PT100 temperature sensor (when temperature control required) |
| Observation device | Silo wall sight glass, Level observation tube |
| Safety accessories | Vacuum relief valve, Pressure relief valve, Explosion vent (for dust explosion hazard areas) |
| Ladder and platform | External ladder, Top maintenance platform, Multi-level platform |
| Weighing system | Leg-type weighing modules (for precise metering) |
| Insulation | Rock wool / aluminum silicate insulation + stainless steel or color steel cladding |
| Anti-corrosion | Internal epoxy resin coating, External hot-dip galvanizing |
| Explosion-proof | Explosion-proof dust collector, Explosion-proof motor, Explosion-proof level gauge (dust explosion hazard areas) |
| Equipment Status | Warranty Period | Warranty Scope |
|---|---|---|
| New equipment | 12 months | Silo body, arch-breaking device, discharge device, dust removal system, electrical components |
| Refurbished equipment | 6 months | Silo body, arch-breaking device, discharge device, dust removal system, electrical components |
| Pre-owned equipment (as-is supply) | 3 months | Main functional components |
Final warranty terms are subject to contract. All orders include installation guidance and remote commissioning support.
| Item | Packaging Method |
|---|---|
| Silo body (small sizes, integral) | Bare packaging with steel band fixation, flange face protection |
| Silo body (large sizes, sectional) | Sectional bare packaging, port protection flanges, matching connection bolts |
| Supporting equipment (dust collector, discharger, etc.) | Wooden box packaging, internal shock absorption |
| Electrical components | Waterproof sealed packaging in wooden box |
| Accessories/fittings | Wooden box or carton packaging |
Container capacity estimate (for reference only, subject to actual configuration):
Below 15m³ silo: approximately 1×20'GP container, 1-2 units
15～50m³ silo: approximately 1×40'HQ container after sectioning
Above 50m³ silo: bulk vessel or flat rack container after sectioning
Installation service: On-site installation guidance available. Technicians can be dispatched for large projects to guide assembly (travel and accommodation expenses borne by buyer).
To obtain an accurate quotation, please provide the following information:
Required effective volume or silo dimensions
Name of stored material, bulk density, angle of repose, whether prone to arching
Whether material is corrosive, whether food grade required
Working temperature range (maximum/minimum)
Discharge method requirements and discharge rate
Whether arch-breaking device needed and preferred method
Level measurement method requirements
Whether dust removal device needed
Whether insulation needed
Material requirement (carbon steel/stainless steel/lined)
Local voltage and frequency (e.g., 380V/50Hz or 400V/50Hz)
Whether explosion-proof design required (dust explosion hazard area classification)
Equipment status preference: New / Refurbished / Pre-owned
Budget range and brand preference (if any)
Delivery terms: FOB/CIF/DDP
Destination port or delivery address (for freight calculation)