A 3 cylinder rotary dryer, also known as a triple-drum dryer, is an advanced industrial drying equipment designed to enhance efficiency and reduce energy consumption compared to traditional single-cylinder rotary dryers. As its name suggests, it features three concentric rotating cylinders (inner, middle, and outer), which create a multi-layered drying space. This design allows for extended material retention time, improved heat transfer, and compact installation, making it ideal for high-capacity drying of various bulk materials across industries such as mining, construction, and agriculture.
3 cylinder rotary dryers represent a significant advancement in industrial drying technology, offering superior efficiency, compactness, and versatility compared to traditional designs. Their multi-cylinder structure and counter-current heat transfer make them ideal for high-volume applications where energy savings and consistent drying are priorities. By understanding their components, working principle, and maintenance needs, operators can leverage their capabilities to enhance productivity across mining, construction, agriculture, and waste management sectors. As industries focus on sustainability, 3 cylinder rotary dryers continue to be a preferred choice for efficient, cost-effective moisture removal.
Sand, with its distinct properties, demands a drying solution that can handle its specific traits, and 3 cylinder rotary dryers rise to this challenge. Sand typically has a high bulk density, meaning it requires sufficient space and agitation to ensure each particle is exposed to heat. The three concentric cylinders provide ample room for the sand to tumble, with lifters strategically placed on the inner walls to lift and disperse the sand, ensuring no particle is left untouched by the drying medium.
Sand often comes with variable moisture content, ranging from surface moisture that evaporates easily to bound moisture trapped within the particles. The multi-stage drying process of 3 cylinder rotary dryers caters to this variability. The outer cylinder deals with the initial evaporation of surface moisture using the residual heat from the middle cylinder, the middle cylinder targets the bound moisture with higher temperatures, and the inner cylinder finishes the job by removing any remaining moisture, resulting in sand with a uniform moisture content, usually between 1–3%—ideal for most applications.
The 3-cylinder rotary dryer is the preferred choice for sand processing
● Construction Industry: they are used to dry river sand, quarry sand, and recycled concrete sand. Dried sand is a key ingredient in ready-mix concrete, mortar, and asphalt.
● Foundries: Prepares silica sand for casting molds to prevent cracking during the metal pouring process, ensuring the quality of the castings.
● Glass manufacturing: To dry high-purity silica sand. Removing moisture and contaminants from the sand is necessary to produce clear, defect-free glass.
● Landscaping: Dries decorative sand to resist mold and ensure consistent texture, making it ideal for use in gardens, golf courses, and other landscaping projects.
*The output will vary according to different materials, feed particle size and other factors
Model | Diameter of outer cylinder(m) | Length of outer cylinder (m) | Drum volume(m³) | Rotation speed(r/min) | Max. air flow temperature(℃) | Production capacity(t/h) | Power(kw) |
---|---|---|---|---|---|---|---|
Ф2.0*4m | 2 | 4 | 12.56 | 4-10 | 700-750 | 8-15 | 5.5x2 |
Ф2.2*5m | 2.2 | 5 | 18.99 | 4-10 | 700-750 | 12-20 | 5.5x2 |
Ф2.5*6m | 2.5 | 6 | 29.43 | 4-10 | 700-750 | 18-28 | 7.5x2 |
Ф2.8*6m | 2.8 | 6 | 36.92 | 4-10 | 700-750 | 25-35 | 11x2 |
Ф3.0*6m | 3 | 6 | 42.39 | 4-10 | 700-750 | 30-40 | 7.5x4 |
Ф3.0*7m | 3 | 7 | 49.45 | 4-10 | 700-750 | 30-45 | 7.5x4 |
Ф3.2*7m | 3.2 | 7 | 56.27 | 4-10 | 700-750 | 35-55 | 11x4 |
Ф3.6*8m | 3.6 | 8 | 81.39 | 4-10 | 700-750 | 55-75 | 18.5x4 |
Ф4.0*10m | 4 | 10 | 125.60 | 4-10 | 700-750 | 70-100 | 22x4 |
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