Peristaltic squeeze pump for concrete is a positive displacement pump that conveys concrete by squeezing an elastic hose. It is particularly suitable for special materials such as low-slump concrete (dry-hard, self-compacting), fiber-reinforced concrete, and lightweight foamed concrete. Its working principle involves alternating pressure rollers squeezing the hose to generate negative pressure, propelling the concrete along the pipeline. It features valve-free, seal-free, and low-shear characteristics, making it especially suitable for conveying concrete containing fibers, lightweight aggregates, or high viscosity.

Peristaltic squeeze pump structure and working principle:

1. Squeeze System: Employs a multi-roller eccentric design (8-12 pressure rollers). The rollers roll and squeeze along the outer circumference of the hose, forming a continuous, closed conveying chamber to prevent concrete segregation.

2. Hose Material: High abrasion-resistant rubber (such as nitrile rubber or polyurethane), with an inner fiber reinforcement layer, resistant to aggregate abrasion in concrete, with a service life of 500-1000 hours (depending on aggregate particle size and hardness).

3. Drive Unit: Hydraulic or electric drive, adjustable speed 0-60 r/min, flow rate 0.5-20 m³/h, working pressure 2-8 bar (low-pressure design to avoid pipeline blockage).

Peristaltic squeeze concrete pump features:

1. Pollution-Free Delivery: Concrete only contacts the inner wall of the hose, avoiding cross-contamination with other pump components, making it particularly suitable for scenarios with extremely high hygiene requirements, such as nuclear power plant construction and food-grade concrete pouring.

2. Low Shear Force Protection: Gentle extrusion action minimizes damage to fibers, aggregates, and other components in the concrete, suitable for conveying highly sensitive materials such as self-compacting concrete and fiber-reinforced concrete.

3. Easy Maintenance: The only vulnerable part is the hose, which can be quickly and cost-effectively replaced, requiring no complex maintenance procedures and significantly reducing downtime. For example, replacing the hose of the Yulong YLRG-25-200 pump can be completed simply by tightening or loosening the pipe clamp bolts.

4. Strong Adaptability

Media Compatibility: Can transport concrete containing large aggregate particles (e.g., gravel ≤25mm) and high-viscosity concrete (slump ≥8cm).

Working Condition Adaptability: Supports forward and reverse operation, has self-cleaning capability, can suck material in both directions, and adapts to intermittent operation needs.

Installation Flexibility: The pump body can be fixed to a trolley or truck chassis, supporting mobile operation with low vibration and noise.

5. Metering Function

Flow rate can be linearly controlled by adjusting the roller speed, meeting the requirements for precise proportioning (e.g., decorative concrete, 3D printed concrete construction).

Application of industrial peristaltic squeeze concrete pump:

1. High-Rise Building and Bridge Construction

Vertically transports concrete to high-altitude work surfaces, solving the problem of limited boom length in traditional pump trucks.

2. Tunnel and Underground Engineering

Flexibly arranged in confined spaces, transporting concrete to the shield machine's supporting system or secondary lining work surface.

3. Nuclear Power Plants and Special Buildings: Meets pollution-free and high-sealing requirements for concrete pouring in critical structures such as containment vessels and storage tanks.

4. Decorative Concrete and Landscaping Projects: Precisely controls flow rate to achieve complex shapes or thin-layer pouring (e.g., artistic flooring, sculpture bases).

5. Emergency Repair and Remote Area Construction: Modular design facilitates rapid deployment and adapts to scenarios without power or with poor road conditions.