1. Product Introduction The industrial sand dryer is a high-efficiency three-pass rotary drying machine specially designed for industrial sand processing and dry mortar production lines. It is mainly used for continuous dehydration and drying of river sand, manufactured sand, quartz sand and other ...
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The industrial sand dryer is a high-efficiency three-pass rotary drying machine specially designed for industrial sand processing and dry mortar production lines. It is mainly used for continuous dehydration and drying of river sand, manufactured sand, quartz sand and other mortar fine aggregates. Wet sand with high moisture content will cause material agglomeration, inaccurate batching, poor mixing effect and reduced bonding strength of finished dry mortar. Adopting advanced triple-cylinder nested structure and counter-current hot air circulation technology, the equipment realizes full heat exchange between sand materials and hot airflow. It can steadily dry wet sand with 15%–20% initial moisture down to ≤0.5% final moisture, fully meeting the strict aggregate standards for dry mortar, plaster mortar and building powder production. As the core front-end drying equipment, the industrial sand dryer provides qualified dry sand raw materials for automatic dry mortar production lines, effectively improving finished product stability and factory production efficiency.
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Three-Pass Drying Structure, Uniform Dehydration
Adopts inner, middle and outer three-layer rotary cylinder design. Sand forms a uniform material curtain inside the drum, extending heat exchange time and realizing thorough drying without wet core. It completely solves the problems of uneven drying and material caking of traditional single-cylinder sand dryers.
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High Thermal Efficiency & Energy Saving
Equipped with integral thermal insulation layer and waste heat recovery system. The thermal efficiency reaches over 80%, which reduces comprehensive fuel and power consumption by more than 30% compared with ordinary drying equipment. It greatly lowers long-term operating costs for mortar factories.
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Wear-Resistant & Heavy-Duty Structure
The cylinder body uses thickened wear-resistant steel plates, and internal lifting plates are made of high-strength anti-abrasion materials. It can resist long-term strong friction and impact of hard sand aggregates, featuring stable mechanical performance, low deformation rate and long service life.
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Closed Negative Pressure Dust Removal, Eco-Friendly
Matched with professional pulse bag dust collector, the whole machine operates under fully closed negative pressure. No dust overflows during the drying process, improving workshop environment and meeting international industrial environmental protection emission standards for building materials.
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24-hour Continuous Industrial Operation
Optimized transmission system and supporting roller structure ensure stable rotation, low vibration and low noise. The simplified and mature mechanical structure avoids frequent material blockage, supporting long-term high-load continuous industrial production.
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Wide Compatibility & Easy Line Matching
It supports multiple heat sources including natural gas, diesel, biomass and coal. It can be seamlessly connected with dry mortar batching, mixing and packaging systems to form a fully automatic closed-loop production line.
| Parameter Item | Technical Data |
|---|---|
| Applicable Materials | River sand, manufactured sand, quartz sand, various mortar fine aggregates |
| Production Capacity | 3–30 t/h (customizable) |
| Initial Moisture Content | 15%–20% |
| Final Moisture Content | ≤0.5% |
| Drying Temperature Range | 180–350℃ (adjustable) |
| Cylinder Rotation Speed | 3–8 r/min |
| Total Installed Power | 15–75 KW |
| Thermal Efficiency | ≥80% |
| Optional Heat Sources | Natural gas, diesel, biomass, coal |
| Control System | PLC intelligent automatic control |
| Working Mode | 24-hour continuous automatic drying |
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Pre-Operation Inspection
Before startup, check the tightness of cylinder connections, wear condition of internal lifting plates, normal operation of motor and reducer, and the patency of hot air duct and dust removal pipeline. Do not start the machine with faults or blockages.
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Uniform & Stable Feeding
Maintain continuous and even feeding speed during operation. Overfeeding will cause internal material accumulation and blockage, while unstable feeding will lead to inconsistent dried sand moisture. Remove large hard impurities in advance.
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Scientific Temperature Adjustment
Adjust drying temperature and cylinder rotating speed according to the actual moisture of wet sand. Avoid long-time ultra-high temperature operation to prevent cylinder deformation and material scorching, ensuring stable drying quality.
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Standard Safety Operation
It is strictly prohibited to touch rotating cylinders and high-temperature pipelines during equipment operation. All maintenance, cleaning and fault handling must be carried out after complete power cut to ensure safety.
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Regular Daily Maintenance
Clean residual sand and dust inside the cylinder and dust collector after daily shutdown. Regularly lubricate transmission bearings and reducers, and inspect and replace worn parts in time.
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Timely Fault Troubleshooting
Stop the machine immediately in case of abnormal noise, temperature surge, material blockage or air leakage. Never operate the equipment with hidden faults to avoid secondary damage.
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Dry Mortar & Plaster Production Lines
Professional aggregate drying equipment for masonry mortar, plaster mortar, anti-crack mortar, waterproof mortar and thermal insulation mortar production lines.
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Sand Washing & Aggregate Processing Plants
Deep dehydration and drying treatment for washed wet sand to produce high-quality dry sand for building material processing and commercial sales.
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Building Powder Material Industry
Drying pretreatment of quartz sand and manufactured sand for wall putty, tile adhesive and various building powder materials.
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New Material & Refractory Industry
Drying processing of granular raw materials for thermal insulation materials and refractory products.
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Municipal & Construction Projects
Supporting drying system for special mortar raw materials for road construction, municipal engineering and industrial building projects.
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Q1: What kind of materials can the industrial sand dryer process?
A1: It is specially used for drying river sand, manufactured sand, quartz sand and other granular aggregates, fully meeting the raw material requirements of all kinds of dry mortar and building powder products.
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Q2: What is the final moisture standard after drying?
A2: It can steadily dry wet sand with 15%–20% initial moisture to ≤0.5%, which is the standard moisture requirement for high-quality dry mortar production.
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Q3: Why is the dried sand moisture uneven?
A3: Uneven drying is mainly caused by unstable feeding speed, blocked hot air pipelines or damaged lifting plates. Regular inspection and cleaning can ensure consistent drying effect.
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Q4: Can the equipment adapt to different heat sources?
A4: Yes. It supports multiple heat sources including natural gas, diesel, biomass and coal, adapting to different factory energy conditions and environmental protection policies.
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Q5: Is the industrial sand dryer environmentally friendly?
A5: Yes. Adopting closed negative pressure dust removal design, no dust overflows during operation, fully complying with international environmental protection standards for building material production.
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Q6: Can the production capacity be customized?
A6: Absolutely. We provide customized models from 3t/h to 30t/h according to customer production scale and site layout requirements.
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Q7: How to reduce energy consumption during operation?
A7: Maintain stable and uniform feeding, set reasonable drying temperature according to material moisture, and regularly clean pipeline dust blockages to maximize thermal efficiency and reduce operating costs.
