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Product Description
We are a professional silica sand dryer manufacturer based in China, with over 15 years of deep expertise in the R&D and manufacturing of industrial drying equipment. Our factory spans an area of over 20,000 square meters and is fully equipped with advanced manufacturing machinery—including CNC cutting machines, automated welding robots, large-scale lathes, and dynamic balancing testers—achieving an annual production capacity of over 300 sets.
As a direct source manufacturer, we provide global clients with a seamless, one-stop service covering customized scheme design, equipment manufacturing, installation, commissioning, and lifetime maintenance. By eliminating middlemen and trading company markups, our factory-direct pricing is 20% to 35% lower than market traders, while delivering shorter lead times and much faster service responses.
Our flagship silica sand dryer is engineered specifically for high-hardness mineral particles, including quartz sand, silica sand, foundry sand, glass-making sand, ceramic sand, construction sand, and oilfield fracking proppants. The system efficiently dries wet silica sand with an initial moisture content of 10% to 35% down to 0.5% to 1% or below in a single pass. Single-line processing capacities cover a broad span from 1 TPH to 80 TPH, and we offer extensive non-standard customization to satisfy the operational scales of small independent foundries up to massive multinational glass manufacturing conglomerates.
Engineering & Component Specifications
Structural Build: The main shell of the dryer is fabricated from premium Q235B carbon steel or high-temperature resistant Q345R alloy steel.
Wear Protection: Critical high-impact zones are heavily armored with high-manganese steel (Mn13), wear-resistant cast steel (ZGMn13-4), or 95% alumina ceramic linings.
Thermal Flexibility: The combustion system can be tailored to support natural gas, biomass pellets, steam heat exchangers, thermal oil furnaces, or electrical heating elements.
Smart Control: The electrical system utilizes Siemens or Mitsubishi PLCs paired with Weinview touchscreens, supporting dual Chinese/English user interfaces for international compatibility.
We are fully certified under ISO9001 and CE (EU standard). Our machinery has been successfully exported to more than 30 countries and regions across Southeast Asia, the Middle East, Africa, South America, and Russia, serving over 1,200 clients worldwide.
Functional Principle
Wet silica sand is introduced uniformly into the slightly inclined, rotating drum via a front-end feeding system (belt conveyor or bucket elevator). The drum is set at a 2° to 5° inclination angle relative to the horizontal plane and rotates slowly at an adjustable speed of 1.5 to 8 rpm. The interior of the drum features multiple sets of lifting flights welded along the axial direction, boasting cross-sections optimized via fluid dynamics. As the drum rotates, these flights continuously scoop up the silica sand from the bottom and cascade it downward, creating a highly uniform "material curtain" across the entire cross-section of the drum to maximize exposure to the hot air.
The high-temperature hot air generated by the heat source system (ranging from 150°C to 800°C, adjustable based on process needs) is injected from the discharge end, creating a counter-current heat exchange layout where the airflow moves opposite to the material path.
The hottest air first contacts the driest sand right before discharge, while the cooler, spent air contacts the incoming high-moisture wet sand.
This step-by-step counter-current process ensures the thermal energy is utilized to its full potential, pushing comprehensive thermal efficiency to 70% to 80%.
As the sand particles repeatedly cascade, surface and inter-granular moisture evaporates rapidly. The humid, spent exhaust gas is drawn out from the feed end and routed through a high-efficiency dual-stage filtration system: a cyclone dust collector first intercepts large particles, followed by a pulse baghouse dust collector for secondary fine filtration. This keeps final particulate emission concentrations strictly below 20 mg/m³, fully complying with stringent environmental regulations. The fine dust captured by the collectors is recycled back into the finished product silo via a screw conveyor, achieving a total material recovery rate above 99%.
The thoroughly dried silica sand is continuously evacuated from the outlet via a sealed star-type rotary discharge valve. To facilitate immediate automated packaging and storage, a secondary rotary cooling drum can be integrated. The entire drying cycle occurs under a continuous micro-negative pressure environment, completely preventing dust from escaping into the workshop.
Product Features
1. Source Factory Direct-Supply Pricing
Because you buy directly from our production facility without middlemen or agent markups, our factory-direct price is exactly your final price. For equivalent technical specifications, our pricing is 20% to 35% lower than trading companies. Factory shipping also guarantees highly controllable lead times: standard models ship within 15 days, while custom configurations deliver within 30 to 45 days—shortening the industry-average delivery cycle by over 30%.
2. Tailored Non-Standard Customization
Every drying line is custom-engineered to align perfectly with your exact field conditions. Our engineering team evaluates your specific material characteristics (particle size, moisture range, Mohs hardness), daily capacity requirements, site footprints, preferred fuels, and local environmental mandates. From the drum diameter, length, and speed to the lifting flight geometry, heat source, filtration specifications, and PLC programming, everything is tailored to create a truly bespoke solution.
3. Ultra-Wear-Resistant Build Engineered for Silica Sand
Silica sand has a Mohs hardness of 7, making it highly abrasive and damaging to standard steel linings. To counter this, our drum interiors utilize a dual-layer defense system of high-manganese steel castings reinforced with 95% alumina ceramic tiles. The internal lifting flights are cast from ZGMn13-4 wear-resistant alloy steel, delivering a lifespan of 8,000 to 12,000 hours. High-impact wear zones feature a quick-release design, allowing localized on-site replacements in under 4 hours without returning components to the factory.
4. Intelligent PLC Control with One-Touch Operation
The system is managed by a Siemens or Mitsubishi PLC automation architecture coupled with a 10-inch Weinview touchscreen HMI that supports instant Chinese/English switching. Operators only need to input the target output moisture and temperature; the system automatically modulates the drum speed, hot air temperature, and feed rate without requiring manual intervention. The panel integrates over ten automated safety protections, including over-temperature safety, motor overload protection, material-starvation alarms, continuous bearing temperature monitoring, flame monitoring, and immediate emergency stops.
5. Advanced Energy Conservation and Low Utility Costs
Our counter-current drying technology ensures a thermal efficiency rate above 70%. When configured with natural gas, the energy consumption required to evaporate 1 ton of water is compressed to just 80 to 110 m³. For large-scale projects, an optional waste heat recovery system can capture thermal energy from the exhaust gas to preheat fresh intake air, dropping energy consumption by an additional 10% to 15% and slicing comprehensive operating costs by 30% to 40% compared to traditional systems.
6. Environmental Compliance for Seamless Auditing
The entire line operates under strict micro-negative pressure, with heavy-duty mechanical seals at both the inlet and outlet junctions to eliminate dust leaks. Working in tandem with our dual-stage cyclone + pulse baghouse filtration, final particulate emissions are suppressed ≤ 20 mg/m³, while $text{SO}_2$ and $text{NO}_x$ emissions easily clear strict local air quality standards. We provide complete technical data packages to help our clients smoothly pass environmental impact assessments.
7. Multi-Purpose Versatility and High Equipment Utilization
Beyond silica sand, the system accommodates a broad array of raw materials, including river sand, manufactured sand (M-sand), mineral powders, fly ash, distillers' grains, sawdust, sludge, and chemical granules. Switching between materials is highly simplified: operators only need to adjust the drum speed, temperature, and airflow parameters via the touchscreen—no core mechanical modifications required. This significantly boosts your return on investment.
8. Comprehensive Export Testing and Lifelong Global Service
We offer a 12-month warranty on the entire machine, an extended 24-month warranty on core components (reducer and motor), and lifetime technical support. Common wear parts are kept in stock year-round and ship within 48 hours. International clients receive technical support through remote video guidance and local cooperative service providers, with a 2-hour response time for general inquiries and a 48-hour resolution path.
To minimize commissioning times and risks, every piece of equipment undergoes a rigorous multi-stage quality control protocol before leaving our factory:
Drum dynamic balancing verification.
Ultrasonic non-destructive testing (NDT) of structural welds.
Minimum 8-hour continuous no-load test run.
Minimum 4-hour full-load test run.
Thermal control and precision sensor calibration.
Exhaust and dust-collection efficiency verification.
9. Proven Global Track Record with 1,200+ Installations
With over 1,200 silica sand drying systems successfully delivered worldwide, our clients include major global names like China Glass Holdings, Xinyi Glass, Kibing Group, and Sinoma, alongside mining and building material leaders across Southeast Asia, the Middle East, and Africa. This extensive project footprint gives our engineering team deep data and parameter insights, ensuring we recommend the exact model configuration your project needs from day one.
Get a Custom Engineering Proposal Within 24 Hours
Please share your initial moisture content, target final moisture, hourly or daily capacity requirements, preferred fuel types, and site dimensions. Our engineering team will deliver a comprehensive technical proposal and commercial quotation within 24 hours. Factory direct supply with zero middleman markups—contact us today to schedule your factory visit!
Technical Specifications
| Product Specs (m) | Capacity (T/H) | Main Motor Power (kW) | Main Motor Model | Main Gearbox Model | Ratio |
| φ1.2×10m | 2.5 | 7.5 | Y160M-R3 | ZL50-16-1 | - |
| φ1.5×12m | 3.3 - 4.9 | 10 | Y160L-6B3 | JZQ500-III-2F | - |
| φ1.5×15m | 4 - 6 | 18.5 | Y200L-6 | JZQ500-III-2F | - |
| φ1.8×12m | 4 - 6 | 11 | Y200L-6 | ZQ50-16II-2 | 16.46 |
| φ2.2×12m | 7 - 12 | 18.5 | Y160L-6 | JZQ650-III | 31.5 |
| φ2.2×14m | 7 - 12 | 18.5 | Y160L-6 | JZQ750-III | 31.5 |
| φ2.2×16m | 12 | 30 | Y225M-6 | JZQ750-III | 31.5 |
| φ2.4×14m | 12 | 30 | Y250M-6 | JZQ750-III | 31.5 |
| φ2.4×18m | 10 - 13 | 37 | Y250M-6 | ZL85-13-1 | 27.16 |
| φ2.4×20m | 10 - 14 | 37 | Y250M-6 | ZL85-13-1 | 27.16 |
| φ3×20m | 25 | 55 | Y250M-4 | ZL100-16-1 | 41.52 |
| φ3×25m | 32 - 36 | 75 | YR280M-4 | ZL100-16-1 | 41.52 |
8.
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