Dry Bulk Material Conveying
Dry Bulk Material Conveying
Dry Bulk Material Conveying refers to the movement of dry bulk materials, such as powders, granules, pellets, and fine particles, from one location to another within industrial processes. This is a critical function in industries like cement, power generation, waste-to-energy, agriculture, food processing, and chemicals.
Methods of Dry Bulk Material Conveying
1. Mechanical Conveying
- Uses physical systems such as belts, screws, chains, or vibrating systems to move materials.
- Key Systems:
- Belt Conveyors: Ideal for long-distance transport of bulk materials like coal, aggregates, or fertilizers.
- Screw Conveyors: Moves powders or granular materials along an enclosed trough or tube using a rotating screw.
- Drag Chain Conveyors: Pulls materials along a trough using chains and scrapers.
- Bucket Elevators: Lifts materials vertically using buckets attached to a belt or chain.
- Vibratory Conveyors: Uses vibration to move fine powders or fragile materials.
2. Pneumatic Conveying
- Uses air or gas flow to transport materials through pipelines.
- Types:
- Dilute Phase Conveying:
- High-velocity airflow suspends materials and moves them through pipelines.
- Suitable for low-density materials like flour or fly ash.
- Dense Phase Conveying:
- Uses low-velocity, high-pressure airflow to push materials in a more compact form.
- Ideal for abrasive, fragile, or high-density materials like cement or sand.
- Dilute Phase Conveying:
- Advantages:
- Enclosed system reduces contamination and dust.
- Versatile for various layouts and material types.
3. Hydraulic Conveying
- Uses water or other liquids to transport materials through pipelines.
- Commonly used for slurry transport in mining and ash handling in power plants.
- Limitations: Not suitable for materials requiring dry handling.
Key Features of Dry Bulk Material Conveying Systems
- Material Compatibility:
- Designed to handle materials of varying sizes, densities, and flow characteristics.
- Dust Control:
- Enclosed systems and dust extraction units minimize emissions, maintaining a clean environment.
- Flexibility:
- Configurations for horizontal, inclined, vertical, or multi-directional transport.
- Automation:
- Modern systems can integrate sensors and control units for efficient material handling.
- Durability:
- Use of wear-resistant materials ensures long service life, especially for abrasive substances.
Common Materials Conveyed
- Powders: Fly ash, cement, flour, lime, gypsum.
- Granules: Fertilizer, sugar, grains, plastic pellets.
- Aggregates: Sand, gravel, coal, clinker.
- Fragile Materials: Seeds, grains, or pharmaceuticals.
Applications
- Waste-to-Energy Plants:
- Handling bottom ash, fly ash, and refuse-derived fuel (RDF).
- Power Plants:
- Conveying coal, biomass, and ash for combustion or disposal.
- Cement Plants:
- Moving raw materials like limestone, clinker, and gypsum.
- Agriculture:
- Transporting grains, seeds, and fertilizers.
- Chemical Industry:
- Handling powders, granules, or hazardous materials in a controlled environment.
- Food and Beverage:
- Moving powders (flour, sugar) and granules hygienically.
Advantages of Dry Bulk Material Conveying
- Efficient and Reliable: Moves large quantities of materials with minimal spillage.
- Customizable: Systems can be designed for specific materials and layouts.
- Environmentally Friendly: Enclosed systems prevent material loss and reduce dust pollution.
- Automation Potential: Reduces labor costs and ensures consistent material flow.
Challenges
- Material Characteristics:
- Abrasive or cohesive materials can cause wear or clogging.
- Energy Consumption:
- Pneumatic systems, in particular, can be energy-intensive.
- Maintenance:
- Components like belts, screws, and pipelines require regular inspections.
Key Considerations for System Design
- Material Properties:
- Bulk density, moisture content, particle size, and abrasiveness.
- Conveying Distance:
- Horizontal, inclined, or vertical transport needs.
- Capacity Requirements:
- Volume of material to be handled per hour.
- Environmental Factors:
- Dust control, temperature, and material containment.
- System Integration:
- Compatibility with existing equipment, such as hoppers, silos, or bagging machines.
|
Model |
BG500S |
|
Chute Width (mm) |
500 |
|
Chute Depth(mm) |
500 |
|
Capacity (m3/h) |
30m3/h |
|
Chain Speed (m/s) |
0.12 |
|
Chain Pitch(mm) |
(P1/P2) P=142mm/200mm |
|
Conveyor Length (m) |
5.9<L≤40 |
|
Scraper size(mm) |
142×470×50mm |
|
Transport Material Thickness (mm) |
150mm |
|
Installation Angle (degree) |
≤15° |
|
Motor Power Kw |
7.5 |
|
Drive Installation Type |
Back Mounted (Left/Right) |
|
Transmission Type |
Chain Drive |
|
Ideal Granularity (mm) |
<10 |
|
Maximum Humidity (%) |
≤5% |
|
Maximum Temperature(˚C) |
≤150˚C |
|
Model |
BG640S |
|
Chute Width (mm) |
640 |
|
Chute Depth(mm) |
500 |
|
Capacity (m3/h) |
50m3/h |
|
Chain Speed (m/s) |
0.12 |
|
Chain Pitch(mm) |
(P1/P2) P=142mm/200mm |
|
Conveyor Length (m) |
3.39<L≤30 30≤x≤40 |
|
Scraper size(mm) |
142×600×50mm |
|
Transport Material Thickness (mm) |
200mm |
|
Installation Angle (degree) |
≤15° |
|
Motor Power Kw |
7.5 |
|
Drive Installation Type |
Back Mounted (Left/Right) |
|
Transmission Type |
Chain Drive |
|
Ideal Granularity (mm) |
<10 |
|
Maximum Humidity (%) |
≤5% |
|
Maximum Temperature(˚C) |
≤150˚C |
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
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