sand dryer machine

The sand dryer machine is a professional drying equipment specially designed for dry mortar production lines, targeting river sand, quartz sand, manufactured sand and other granular raw materials required for mortar production. In dry mortar manufacturing, sand with high moisture content will cause material agglomeration, uneven mixing, unstable mortar strength and low finished product qualification rate. This sand dryer adopts three-cylinder rotary drying structure, which can efficiently remove surface and internal moisture of sand materials. It can process wet sand with initial moisture content of 15%–20% and stably dry the materials to a final moisture content of ≤0.5%, fully meeting the strict moisture standard of industrial dry mortar production. Matched with automatic feeding, heat supply and discharging systems, the equipment realizes continuous, stable and large-batch drying operation, effectively solving the problems of low efficiency, high energy consumption and unstable drying effect of traditional single-cylinder dryers, and it is the core supporting equipment for standardized and high-efficiency dry mortar production lines.

• High-efficiency Drying & Uniform Moisture Control: Adopts three-layer nested rotary cylinder structure and multi-directional hot air circulation technology. The materials form a continuous material curtain in the cylinder, realizing full contact with hot air. The drying is uniform without dead angles, and the final sand moisture is stably controlled within ≤0.5%, avoiding mortar quality fluctuation caused by uneven sand moisture.
• Energy-saving & Low-consumption Design: Equipped with waste heat recovery and cyclic heating system, which makes full use of residual hot air to preheat wet materials, greatly reducing heat loss. Compared with traditional single-cylinder dryers, the energy consumption is reduced by more than 30%. The insulated cylinder wall effectively locks heat, further improving thermal utilization rate and reducing production operating costs.
• Stable Operation & Long Service Life: The main body adopts thickened wear-resistant steel plate, and the internal lifting plate is made of high-strength wear-resistant material, which resists impact and abrasion of high-hardness sand materials. The optimized rotating transmission structure ensures stable operation, low noise and less failure. The whole machine is durable and suitable for long-term continuous industrial production.
• Dust Removal & Environmental Protection: Matched with professional bag dust removal and closed negative pressure dust collection system. It effectively captures dust and fine sand generated during drying operation, no dust overflow, meeting national environmental protection emission standards. It improves the workshop production environment and avoids raw material waste.
• High Automation & Easy Operation: Equipped with intelligent PLC automatic control system, which can real-time monitor temperature, rotating speed, feeding volume and material moisture. It supports one-key start and stop and automatic parameter adjustment, realizing unattended operation. The operation threshold is low, and it is convenient for daily maintenance.
• Strong Compatibility & Flexible Matching: It can be perfectly matched with various specifications of dry mortar production lines, adapting to different raw materials such as river sand, manufactured sand and quartz sand. It supports flexible adjustment of output and drying temperature, meeting the production needs of ordinary mortar, thermal insulation mortar, waterproof mortar and other multiple mortar types.

• Pre-operation Inspection: Before starting the equipment, check the tightness of all connecting parts, the wear degree of internal lifting plates, the normal operation of transmission motor and reducer, and the unblocked state of heat supply and dust removal pipeline. It is forbidden to start the machine with faults to avoid equipment damage.
• Standard Feeding Operation: Ensure uniform and continuous feeding, prohibit over-feeding or intermittent feeding, so as to prevent material accumulation in the cylinder, blockage and uneven drying. Strictly control the particle size of incoming materials to avoid oversized hard impurities entering the cylinder and causing abrasion and jamming.
• Temperature & Parameter Control: Adjust the drying temperature and rotating speed according to the initial moisture content of sand materials. It is forbidden to run at ultra-high temperature for a long time to prevent cylinder deformation and material burning. Real-time monitor the discharge moisture to ensure stable product quality.
• Strict Safety Operation: Operators must receive professional training before taking post. It is forbidden to open the equipment access door during operation, extend hands or tools into the running cylinder. Cut off the power supply completely during equipment maintenance and overhaul to ensure operation safety.
• Daily Maintenance & Cleaning: After daily shutdown, clean the residual materials and dust inside the cylinder and dust removal system to prevent material caking and pipeline blockage. Regularly lubricate the transmission bearing and reducer, and replace worn accessories in time to extend the service life of the equipment.
• Environmental Protection & Fault Handling: Keep the dust removal system running normally during operation. In case of abnormal noise, temperature surge or material blockage, stop the machine immediately for inspection and troubleshooting, and do not operate with hidden dangers.

• Dry Mortar Production Industry: Special drying equipment for ordinary masonry mortar, plastering mortar, bonding mortar, waterproof mortar, thermal insulation mortar and other dry mortar production lines, providing qualified low-moisture sand aggregate.
• Construction Aggregate Processing: Drying treatment of river sand, manufactured sand and quartz sand used in building materials, concrete admixtures and construction mortar projects.
• New Building Materials Factory: Supporting drying operation for the production of ceramic tiles, putty powder, thermal insulation materials and other new building materials with sand as raw materials.
• Mining & Sand Processing Plant: Deep drying processing of washed wet sand to meet the high-standard raw material requirements of fine chemical building materials and high-grade mortar.
• Large Engineering Projects: On-site sand drying support for municipal engineering, highway infrastructure, construction engineering and other large-scale project mortar supporting production.

• Q1: What is the maximum moisture of sand that the equipment can handle?

  A1: This sand dryer can stably process wet sand with an initial moisture content of 15%-20%, and the dried sand moisture can be stably controlled below 0.5%, fully complying with the raw material standard for industrial dry mortar production.

• Q2: Is the equipment adaptable to different heat sources?

  A2: Yes. The equipment supports multiple heat sources such as natural gas, diesel, biomass and coal-fired hot blast stove. Customers can choose the matching heat source system according to local energy conditions and environmental protection requirements.

• Q3: Why is the dried sand moisture uneven?

  A3: The main reasons include uneven feeding speed, abnormal cylinder rotating speed, blocked hot air pipeline or damaged internal lifting plates. It is necessary to check the feeding system, heat supply pipeline and wearing parts regularly and adjust operating parameters in time.

• Q4: How to reduce the operating energy consumption of the dryer?

  A4: The equipment is equipped with a waste heat recovery system. In actual operation, keep uniform feeding and reasonable temperature setting, regularly clean the dust removal and heat dissipation pipeline to ensure smooth hot air circulation, which can effectively reduce comprehensive energy consumption.

• Q5: Is the equipment environmentally friendly and dust-free?

  A5: Yes. The whole machine adopts closed negative pressure design, equipped with professional bag dust removal equipment, which can effectively capture floating dust. No dust overflow during operation, meeting international environmental protection emission standards.

• Q6: Can the equipment be customized in terms of output and size?

  A6: Absolutely. We support personalized customization of 3-30t/h different output models, and can adjust the equipment size, structure and control system according to the actual site and production line matching needs of customers.

• Q7: What is the daily maintenance cycle of the equipment?

  A7: Clean residual materials and dust every day after shutdown; check and lubricate transmission parts every week; inspect wearing parts such as lifting plates and dust removal filter bags every month, and replace damaged parts regularly to ensure stable and long-term operation of the equipment.