Sand Dryer

What is Sand Dryer?

A sand dryer is a type of drying equipment used to remove moisture from granular materials, particularly suitable for drying artificial sand, river sand, quartz/silica sand, and similar materials. It has various advantages, including high production capacity, wide application range, low flow resistance, operational flexibility, and ease of use. In addition to drying sand, it can also be used for drying mineral powder, coal cinder, slag, and other substances. The sand dryer can be fueled by different sources such as coal, oil, and gas.

Sand dryers can be classified based on two main factors: volume and the materials to be dried.

Based on volume:

Large sand dryers: These are designed for high-capacity drying operations and are suitable for industrial-scale applications.

Small sand dryers: These are designed for smaller-scale drying needs, such as in laboratories or small production facilities.

Based on materials:

Silica sand dryer: Specifically designed to dry silica sand, which is commonly used in construction, glassmaking, and foundries.

Quartz sand dryer: Designed to dry quartz sand, which is widely used in industries like water filtration, ceramics, and electronics.

River sand dryer: Used to dry sand extracted from rivers, typically for construction purposes.

Yellow sand dryer: Used to dry yellow sand, a type of sand commonly found in coastal areas and used in construction.

Zircon sand dryer: Designed specifically to dry zircon sand, which is widely used in the ceramics industry and as a refractory material.

Garnet sand dryer: Used for drying garnet sand, commonly used for sandblasting, waterjet cutting, and filtration applications.

These are some common classifications of sand dryers based on volume and the specific materials they are designed to dry.

Sand dryer machines have various applications across different industries. Some common applications include:

Building materials: Sand dryers are used to dry artificial sand, river sand, quartz/silica sand, yellow sand, and other types of sand used in construction materials like concrete, mortar, and plaster.

Ore dressing process: Sand dryers are used to dry iron powder, zinc ore powder, and other ore powders during the ore dressing process. This helps in reducing moisture content, improving handling, and facilitating further processing.

Cement industry: Sand dryers can be used to dry particles like fly ash and limestone, which are used as additives in cement production. Drying these materials helps in improving their handling and storage properties.

Coal industry and power plant: Sand dryers are utilized to dry raw coal powder, semi-coke, coal gangue, coal ash, and other coal-related materials. This is important for coal preparation and utilization in the coal industry and power plant operations.

Other industries: Sand dryers can also be used in various other industries for drying different materials. These include dry-mixed mortar, slag, clay, gypsum, chemical industry, foundry, and other industries where drying of granular materials is required.

Overall, sand dryer machines have a wide range of applications across industries where the drying of granular materials is necessary to improve handling, processing, and storage of the materials.

Applications of Sand Dryer

Working Principle of Sand Drying Equipment

The working principle of sand drying equipment involves three main systems: the boiler system, heat exchange system, and dust collecting system.

Boiler system: The sand drying equipment uses a hot-blast stove technology. A hot-blast stove generates high-temperature air that is needed for the drying process. The stove heats fuel, such as coal, natural gas, or biomass, to produce hot air.

Heat exchange system: The heat exchange system mainly consists of a three-cylinder drum. Moist sand is fed into the drum, and as it rotates, it comes into contact with the hot air produced by the hot-blast stove. The lifting blades fixed on the inner wall of the drum help lift the moist sand, ensuring that it gets full contact with the scorching wind. The rotating action of the drum and the lifting of the sand promote efficient heat transfer and drying.

Dust collecting system: As the drying process takes place, some fine particles and dust may be carried along with the air. To prevent resource waste and air pollution, a dust collector is employed. The dust collector captures and collects the fine particles and dust before they are released into the atmosphere, ensuring the surrounding air remains clean.

Overall, the sand drying equipment operates by using a hot-blast stove to produce hot air, which is then circulated through a three-cylinder drum. The heat exchange between the hot air and the moist sand inside the drum facilitates efficient drying. A dust collecting system is used to capture and collect any fine particles or dust generated during the drying process.

Working Principle of Sand Dryer

The rotary sand dryer consists of several components, including:

Rotary Cylinder: This is the main part of the sand dryer where the drying process takes place. It is a large rotating drum that holds the sand and facilitates heat transfer.

Air Inducing Equipment: This equipment is responsible for supplying the hot air needed for drying the sand. It can be a hot-blast stove or any other heating system that generates high-temperature air.

High-speed Scattering Equipment: This equipment helps to scatter and disperse the wet sand inside the rotary cylinder, ensuring optimal contact between the sand and hot air for efficient drying.

Lifting Plate: The lifting plate is fixed on the inner wall of the rotary cylinder and helps lift and drop the sand as the drum rotates. This promotes even drying and prevents material from sticking to the cylinder wall.

Automatic Cleaning Device: This device helps to remove any impurities or debris that may accumulate during the drying process, ensuring the sand remains clean.

Transmission Device: The transmission device is responsible for driving the rotation of the rotary cylinder.

Conveying Equipment: This equipment is used to transport the dried sand from the dryer to a designated location.

Hot Air Equipment: This equipment generates and supplies the hot air required for the drying process.

Speed Reducer: The speed reducer is used to adjust the rotation speed of the rotary cylinder for optimal drying performance.

Supporting and Sealing Device: This device provides support to the sand dryer and ensures a tight seal to prevent air leakage.

The advantages of a rotary sand dryer include:

Exquisite Workmanship: The use of wear-resistant manganese plates in the construction of the sand dryer enhances its durability and extends its service life.

Stable Performance and Advanced Process: The sand dryer allows for precise control of the output humidity of the sand, ensuring that it meets the required specifications. It also helps maintain the quality of the sand during the drying process.

Small Occupied Area: The compact and efficient design of the rotary sand dryer allows it to take up 60% less space compared to traditional dryer machines, making it suitable for installations with limited space availability.

Low-Cost Maintenance: The sand dryer requires minimal maintenance, reducing overall operating costs.

Low Energy Consumption: The sand dryer is designed to optimize energy efficiency, resulting in lower energy consumption during the drying process.

High Mechanization: The sand dryer incorporates automation features that make the drying process more efficient and reduce the need for manual intervention.

Overall, the rotary sand dryer offers advantages in terms of durability, performance, space efficiency, maintenance, energy consumption, and automation, making it a reliable choice for drying sand.

Structure of Sand Dryer

During the installation of a sand dryer machine, there are several important considerations to keep in mind:

Placement and Fixation: The sand dryer machine should be installed on a horizontal concrete bed. It should be fixed securely using anchor bolts to ensure stability during operation.

Alignment: The main body of the rotary sand dryer should be positioned perpendicular to the horizontal ground. This ensures proper functioning and prevents any imbalance.

Bolt and Door Inspection: Before starting the machine, it is crucial to check all anchor bolts to ensure they are properly tightened. Additionally, inspect the door of the main engine to ensure it is securely locked.

Wiring and Control Switch: Allocate and connect the necessary wires and control switches according to the indicated requirements. This ensures proper electrical connection and control of the sand dryer machine.

By following these attentions during the installation process, you can ensure the sand dryer machine is properly positioned, secured, and wired, allowing for efficient and safe operation.

Sand Dryer Customer Site

Sand Dryer Manufacturer

Henan Zoneding Heavy Machinery Co. Ltd. is a reputable and professional sand dryer manufacturer. Their headquarters are located in the machinery center, and they have a team of more than 2,300 online employees, including 360 skilled engineers. They are dedicated to providing excellent pre-sale consultation, in-sale guidance, and after-sales service.

When you reach out to them, their knowledgeable sales team will be able to provide you with a price quote for the sand dryer and offer solutions and flow charts tailored to your specific requirements. You can easily engage with their sales team through online chat or by leaving a message on their website.

Henan Zoneding Heavy Machinery Co. Ltd. prides itself on its expertise in sand dryer manufacturing and aims to deliver high-quality products and comprehensive customer support.

General Specification

Item/Unit/Model	Φ2.5×7m	Φ2.7×7m	Φ3.0×7.0m	Φ3.2×7.0m	Φ3.6×8m
Diameter of outer cylinder(m)	2.5	2.7	3.0	3.2	3.6
Length of outer cylinder(m)	7	7	7.0	7.0	8
Cylinder volume( m³ )	16.63	16.63	52.678	52.678	81.38
Rotating speed of cylinder(rpm)	4-10	4-10	4 -10	4 -10	4 -10
Initial moisture of slag(%)	10-12	10-12	10-12	10-12	10-12
Final moisture of slag(%)	1	1	1	1	1
Initial moisture of yellow ground(%)	8-10	8-10	8-10	8-10	8-10
Final moisture of yellow ground (%)	0.5-1	0.5-1	0.5-1	0.5-1	0.5-1
Highest intake air temperature(℃)	700-750℃	700-750℃	700-750℃	700-750℃	700-750℃
Production capacity(T/h)	Yellow sand: 25-30 Slag: 20-25	Yellow sand: 30-35 Slag: 25-30	Yellow sand: 35-40 Slag: 30-35	Yellow sand: 45-50 Slag: 35-40	Yellow sand: 65-70 Slag: 60-65
Motor type	Y2-132m-4E	Y2-132m-4E	Y2-160m-4	Y2-160m-4	Y2-160m-4
Motor power(kw)	7.5×2	11×2	7.5×4	7.5×4	15×4
Reducer type	XWD7-23-11W	XWD7-23-11W	XWD6-23-7.5KW	XWD6-23-7.5KW	XWD8-23-15KW
Velocity ratio of reducer	29	29	29	29	29

Please note that the information provided is subject to change as technology improves.