Sand buffer Silo
Sand Buffer Silo
## Product Overview
Sand Buffer Silo is an intermediate caching silo specially designed for quartz filter sand, manufactured sand, aggregate and mine backfilling sand. It acts as a flow balancing station between upstream conveying equipment and downstream dosing/processing units, resolving production instability caused by unmatched feeding & discharging capacity, intermittent operation and equipment downtime.
Different from long-term storage silos, this buffer tank holds sand stock for 10–60 minutes of continuous running to guarantee steady, uninterrupted sand supply for subsequent processes. Equipped with internal anti-impact buffer baffles, wear-resistant lining, anti-bridging discharge system and full-set dust removal device, it avoids particle segregation, severe silo abrasion, flying dust and material blockage. Vertical and horizontal customized models are available to fit plants with limited height or compact layout, widely adopted in water treatment, concrete batching plants, sand production lines and underground mine backfilling projects.
## Working Principle
1. **Production Flow Balancing & Caching**
When upstream conveyors deliver sand faster than downstream consumption, surplus sand is temporarily stored inside the silo. If front-end equipment stops temporarily, reserved sand inside maintains stable discharge and prevents downstream lines from halting production.
2. **Internal Baffle Buffering & Homogenization**
Multi-layer inclined buffer baffles slow down falling sand to cut vertical impact force on the silo cone and lining. Sand particles of different sizes roll and mix evenly over baffles to eliminate coarse-fine separation, ensuring consistent grain composition of output sand.
3. **Anti-Bridging Smooth Discharge System**
The silo hopper adopts large-angle inclined design, fitted with aeration fluidization plates and air cannons to eliminate dead material zones, rat-holing and sand clogging. Pneumatic gate valves at the bottom precisely regulate stable sand flow rate.
4. **Closed Dust-Free Operation & Real-Time Stock Monitoring**
A top pulse bag dust collector fully captures sand dust generated during feeding to meet environmental emission standards. Radar level transmitters monitor residual sand volume in real time and trigger low-material automatic alarms, supporting linkage with plant DCS control system.
## Main Structural Components
1. **Welded Carbon Steel Silo Body**
Standard Q235 steel structure; wear-resistant manganese steel lining optional for highly abrasive sand. Vertical & horizontal styles for selection. Supporting accessories include top maintenance manhole, safety operation platform, guardrails and vertical ladder.
2. **Internal Multi-Stage Anti-Impact Buffer Baffle Assembly**
Decelerates sand flow and homogenizes sand grading to prevent segregation.
3. **Top Pulse Dust Removal Unit**
Negative-pressure dust collector realizes zero visible dust leakage during bulk sand feeding.
4. **Anti-Blocking Discharge Module**
Aeration fluidization plates + air cannon arch breaker + pneumatic flow control gate valve.
5. **Intelligent Level Detection & Signal Output System**
Radar level sensor with PLC signal transmission for remote stock monitoring and early warning.
## Core Advantages
1. **Stabilize Continuous Production Line**
Buffer capacity offsets upstream & downstream capacity mismatch, reduces frequent equipment start-stop and avoids production interruption.
2. **Anti-Segregation & Uniform Sand Output**
Built-in buffer baffles mix sand evenly, stabilize sand grading and guarantee consistent sand-water ratio for downstream processes.
3. **Low Abrasion & Extended Service Life**
Buffered material flow reduces direct collision between sand and silo wall; optional wear lining lowers maintenance frequency and cost.
4. **Full Enclosed Dust Suppression**
Integrated dust recovery system eliminates flying sand dust and improves workshop environment.
5. **Reliable Anti-Blocking Performance**
Combination of fluidization and air cannon thoroughly solves sand bridging and discharge clogging issues.
6. **High Customization Flexibility**
Customizable storage volume, vertical/horizontal layout, anti-moisture heat tracing, explosion-proof electrical parts and matched bulk conveying systems.
## Application Fields
- Water treatment plant quartz filter sand intermediate buffer storage
- Concrete mixing station aggregate sand caching bin
- Mine backfilling tailing sand feeding buffer tank
- Dry mortar & quartz sand processing production lines
- Industrial circulating water sand filtration dosing systems
## Optional Auxiliary Equipment
1. Load cell weighing module for accurate real-time sand stock measurement
2. Electric heat tracing & insulation system for damp sand anti-caking in cold regions
3. IoT remote monitoring module for mobile & PC online equipment management
4. Complete pneumatic sand conveying system matched with bulk trucks
5. Explosion-proof electrical components for hazardous working zones
### Short Homepage Banner Copy
# Sand Buffer Silo
Intermediate buffer storage tank for quartz sand & aggregate
Stable flow, anti-segregation, dust-free & anti-blockage | Vertical & horizontal customizable
SELECTION & TECHNICAL QUESTIONS
Q1: How do I select the right conveyor model? What information should I provide?
> To recommend the most suitable solution, please provide the following details:
> 1. Material type: What material are you conveying? (e.g., fly ash, wood chips, biomass pellets, bottom ash, etc.)
> 2. Material properties: Particle size, temperature, moisture content, abrasiveness
> 3. Capacity requirement: How many tons per hour (t/h) do you need?
> 4. Installation conditions: Conveying distance, incline angle, space limitations
> 5. Application industry: Which industry is this for? (e.g., waste-to-energy plant, biomass power plant, cement plant)
> You can also email us or contact us via WhatsApp. Our engineers will get back to you within 24 hours.
Q2: What is the difference between screw conveyors and chain conveyors? Which one should I choose?
> Both types have different applications:
> – Screw Conveyors: Best for powdery and small-grain materials (e.g., fly ash, cement powder). Good sealing performance, simple structure, low maintenance cost.
> – Chain Scraper Conveyors: Best for bulky, highly abrasive materials (e.g., bottom ash, municipal solid waste, biomass fragments). Supports multiple inlet and outlet points.
> – Bucket Elevators: Ideal for vertical or steep-incline material lifting.
> If you are not sure, tell us your material and working conditions, and our engineers will help you choose.
Q3: Can your equipment handle high-temperature materials? What is the maximum temperature?
> We can customize equipment according to material temperature:
> – Standard type: 0~80°C, carbon steel
> – Medium temperature type: 80~200°C, thickened wear-resistant liner
> – High temperature type: 200~400°C, special heat-resistant steel, optional cooling jacket
> Please tell us your material temperature, and we will recommend the most suitable material solution.
Q4: Are there any limits on conveying distance and lifting height?
> Standard design range:
> – Screw conveyor: Single section up to 70 meters; multiple sections can be connected for longer distances
> – Chain conveyor: Single machine up to 60 meters
> – Bucket elevator: Lifting height up to 50 meters
> We can also customize for extra-long distances or special angles. Contact us for detailed solutions.
Q5: Do you provide explosion-proof design?
> Yes. For explosive and flammable conditions such as pulverized coal and biomass dust, we offer:
> – Explosion-proof motors (Ex d IIB T4 standard)
> – Reserved openings for explosion vents / rupture discs
> – Fully sealed structure to prevent dust leakage
> Please specify your explosion-proof rating requirements.
CUSTOMIZATION & MANUFACTURING
Q6: Do you support customization? What is the lead time?
> Over 90% of our equipment is customized according to customer working conditions. Standard models take about 90–120days. Special customizations take 120–180 days, depending on configuration complexity.
Q7: What material options do you offer?
> Common materials include:
> – Carbon steel (Q235B): Standard working conditions
> – Wear-resistant steel (NM400/NM500): Highly abrasive materials
> – Stainless steel 304/316L: Food, chemical, corrosion-resistant requirements
> – Bi-metal wear-resistant composite plate: Extreme abrasion conditions
> We will recommend the most cost-effective material solution based on your material properties.
Q8: What certifications do you have?
> We hold the following certifications:
> – ISO 9001:2015 Quality Management System
> – ISO 14001 Environmental Management System
> – ISO 45001 Occupational Health & Safety Management
> – CE Certification (EN 1090 Steel Structure)
> If you need scanned copies of specific certificates, please contact us.
DELIVERY & LOGISTICS
Q9: Which countries do you export to? Do you have export experience?
> Our equipment has been exported to more than 20 countries worldwide, including:
> – Europe: Germany, France, Poland, Turkey, etc.
> – Southeast Asia: Singapore, Thailand, Indonesia, Vietnam, etc.
> – Middle East: Saudi Arabia, UAE, etc.
> – South America**: Brazil, Chile, etc.
> We are familiar with the full export process: packaging, customs declaration, and ocean freight. We can provide FOB, CIF, and other trade terms.
Q10: What is your packaging method? Is it suitable for long-distance ocean shipping?
> Export-standard packaging:
> – Large items / complete machines**: Rust prevention + waterproof film + fumigated solid wood pallet
> – Precision components: Wooden case with shock-absorbing filling
> – Random accessories: Categorized packing with detailed packing list
> All wooden packaging meets IPPC fumigation standards for direct customs clearance.
Q11: What is your minimum order quantity?
> We do not have a strict minimum order quantity. Single-unit orders are welcome. Bulk orders can enjoy more favorable pricing.
INSTALLATION & AFTER-SALES
Q12: Do you provide installation guidance? Do engineers need to come to site?
> We offer two service options:
> 1. Remote guidance: Detailed installation drawings and operation manuals, video guidance for installation (free of charge)
> 2. On-site service: Dispatch engineers to site for installation and commissioning (travel costs are additional)
> Most customers choose remote guidance. Our equipment is designed as a modular structure for easy installation.
Q13: What is the warranty period? What are the wearing parts?
> Standard warranty period is 12 months (from the date of arrival at port).
> Wearing parts list:
> – Chain / screw flights: Approximately 1–3 years, depending on material abrasiveness
> – Liners: Approximately 2–4 years
> – Bearings: Approximately 2–3 years
> We recommend ordering a wearing-parts spare kit together with your first order.
Q14: How do you solve problems during operation?
> We provide 7×24 technical support:>
> – Response within 24 hours for technical issues
> – Remote video troubleshooting guidance
> – Engineer on-site service when necessary
> – Common spare parts in stock for fast delivery
QUOTATION & COOPERATION
**Q15: How can I get a quote? How long does it take?
> Quotation process:
> 1. You provide material parameters, capacity, installation conditions, and other requirements
> 2. Our engineers evaluate and select the appropriate model
> 3. Formal quotation and technical proposal provided within 7 working days
> You can contact us via email, or the online inquiry form.
Q16: What are your payment terms?
> Standard payment terms:
> – 30% advance payment: After contract signing, to start production
> – 70% balance: Before shipment, or against copy of Bill of Lading
For long-term cooperative customers, more flexible payment terms can be negotiated.
Follow these 3 steps to find your ideal conveyor solution
Step 1: Identify Your Material Type
Different materials require different conveyor designs. Tell us what you are conveying:
| Material Category | Examples | Recommended Conveyor Type |
| Powder / Fine Granules | Fly ash, cement powder, lime powder | Screw Conveyor |
| Small Granules / Pellets | Biomass pellets, plastic granules, grain | Screw Conveyor / Belt Conveyor |
| Fragments / Chips | Wood chips, bark, agricultural residues | Chain Scraper Conveyor |
| Bulky / Abrasive | Bottom ash, slag, MSW, clinker | Chain En-Masse Conveyor |
| Vertical Lift | Any bulk material needs vertical transport | Bucket Elevator |
Step 2: Define Your Working Conditions
Please prepare the following parameters before contacting us:
| Parameter | Why It Matters | Example |
| Capacity (t/h) | Determines conveyor size and power | 10 t/h, 50 t/h, 100 t/h |
| Conveying Distance (m) | Determines machine length | 15m horizontal, 30m incline |
| Incline Angle (°) | Affects capacity and design | 0° horizontal, 30° incline |
| Material Temperature (°C) | Determines material grade | Ambient, 150°C, 300°C |
| Moisture Content (%) | Affects discharge design | Dry, damp, wet (needs dewatering) |
| Abrasiveness | Determines liner thickness | Low, medium, high |
| Application Industry | Determines certification needs | Power plant, cement, mining, recycling |
Step 3: Choose Configuration Options
Based on your answers above, our engineers will recommend:
Material grade — carbon steel / wear-resistant steel / stainless steel
Sealing type — open trough / fully enclosed / gas-tight
Drive system — motor power, gearbox brand, speed range
Auxiliary options — explosion-proof motor, cooling jacket, cleaning device, level sensors
Not Sure Where to Start?
Send us your basic requirements, and our engineers will design a customized solution for you — completely free.
Email: bootec@bootecgroup.com Response time: Within 24 hours
[REQUEST A FREE QUOTATION →]
