Heavy Duty Double Screw Sand Washer for High-Clay Silica

1.Product Introduction

The Heavy Duty Double Screw Sand Washer for High-Clay Silica is a high-capacity spiral washing machine specifically engineered for difficult-to-wash materials, such as silica sand with high clay content. Featuring a twin-screw configuration, it provides enhanced agitation and scrubbing capabilities for demanding industrial applications.

2.Application

• Silica & Quartz Sand Processing: Used in industries with extreme purity requirements (e.g., glass manufacturing, foundries) to strip away clay films and micro-impurities.
• High-Clay Ore Treatment: Ideal for the pre-washing of raw materials like iron ore and gold ore that contain high levels of silt and clay.
• Large-Scale Aggregate Production Lines: Serves as the core washing equipment for large-scale, high-efficiency cleaning of construction sand and concrete aggregates.
• Manufactured Sand (M-Sand) Production: Performs fine washing and dewatering of crushed sand to significantly upgrade the quality of the final product.

3.Working Principle

The heavy-duty twin-screw washer (also known as the LSX series) utilizes two parallel shafts equipped with spiral blades rotating in a water tank. Its operation is based on counter-current washing and mechanical agitation:

1. Material Feeding: A slurry of water and high-clay silica sand is fed into the machine's inlet.

2. Spiral Agitation & Conveying: Two spiral blades rotate at high speeds, intensely stirring, tumbling, and scrubbing the material. This design effectively breaks up clay clumps and peels impurities from the sand surface.

3. Impurity Separation: Fine clay, dust, and silt become suspended in the water. Since these impurities are less dense, they are carried by the current and discharged through the overflow weir at the upper end.

4. Clean Sand Output: The thoroughly washed sand is pushed by the blades along the inclined tank. As it moves upward, the sand is lifted out of the water, completing both the cleaning and dewatering phases before discharging from the outlet.

4.Advantages

• Superior Cleaning Efficiency: The twin-screw design provides significantly more powerful scrubbing action than single-screw models. It excels at breaking down stubborn clay balls and sticky impurities to ensure high-purity output.

• Efficient Dewatering & Grading: The equipment achieves excellent dewatering as it transports material, lowering moisture content and ensuring a uniform, stable grade of sand.

• Heavy-Duty Durability: Built for the toughest environments, critical components (blades and tanks) are made from high-strength, wear-resistant materials like high-manganese steel or polyurethane liners, allowing for long-term continuous operation.

• High Throughput: Compared to single-screw or wheel-type washers, the double-screw design offers a much higher processing capacity (tons per hour), making it the go-to choice for high-yield production lines.

• Minimized Sand Loss: The enclosed design and precision separation mechanism effectively reduce the loss of fine sand during the washing process, maximizing material recovery rates.

5.Technical Specifications

6.Our Solutions