Fully Automatic Rotary Concrete Reclaimer

Sinou, a reliable China factory, provides high-quality Fully Automatic Rotary Concrete Reclaimer. It adopts single-shaft stirring structure with stable performance and high separation efficiency, suitable for small and medium concrete mixing stations.

1. Parameter Specification

● Processing Capacity: The machine offers a processing capacity ranging from 8 to 20 cubic meters per hour, which can be flexibly adjusted according to the scale of the concrete batching plant. This range covers the daily residue output of most medium and large mixing stations, ensuring sufficient processing capacity during peak production hours without material backlog.

● Aggregate Recovery Rate: The fully automatic washing and screening system ensures an aggregate recovery rate of over 95%. The recovered sand and stone have high cleanliness, with surface cement paste thoroughly removed, meeting the reuse standards for backfill, road base and non-structural concrete.

● Water Recycling Rate: Equipped with a closed-loop water recycling system, the machine achieves a water recycling rate of over 90%, significantly reducing fresh water consumption and sewage discharge. This helps enterprises meet strict environmental protection requirements and lower daily water costs.

● Control System: The machine adopts an industrial-grade PLC automatic control system with a touch screen interface. It supports automatic start/stop, fault self-diagnosis, overload protection, remote monitoring and parameter adjustment, enabling truly unattended operation.

● Structure and Materials: The frame is made of high-strength steel, ensuring strong rigidity and stability. The rotary drum is made of wear-resistant alloy steel with detachable high-chromium alloy liners, which greatly extends the service life under high-frequency operation.

2. Working Principle

● Core Principle: The Fully Automatic Rotary Concrete Reclaimer operates on the composite principle of rotary screening, gravity classification and high-pressure water washing. This combination ensures that the concrete residue is fully separated into sand, stone and slurry in a continuous, stable and efficient manner.

● Feeding and Washing: Residual concrete is automatically fed into the inclined rotary drum. As the drum rotates at a constant speed, internal spiral blades continuously lift and tumble the material, ensuring full contact between aggregates and high-pressure water jets. The water jets break down the cement paste, separating it from the aggregate surface.

● Grading and Discharge: Coarse stone is pushed forward by the spiral blades and discharged from the front outlet. Fine sand passes through the screen holes in the middle section and is discharged separately. The separated slurry flows through the screen into the collection tank.

● Slurry Recycling: The collected slurry is pumped into a sedimentation tank for clarification. The clear water is then recycled back into the washing system, forming a closed loop. The sedimented sludge can be further processed by a filter press for solid-liquid separation, achieving zero sewage discharge.

3. Usage Precautions

● Installation Requirements: Place the machine on flat, hardened ground to ensure it is level and stable. Avoid installation on uneven or soft ground, as this can cause vibration and affect separation efficiency. Ensure there is sufficient space around the machine for maintenance and ventilation.

● Pre-Start Checks: Before starting the machine, inspect the water supply, power supply and all pipeline connections to ensure they are secure and leak-free. Check the inside of the drum for any foreign objects that may cause blockage. Verify that the emergency stop button is functional.

● Operation Guidelines: Do not overload the machine beyond its rated processing capacity, as this can lead to blockage and increased wear. Adjust the water pressure according to the viscosity of the concrete; higher pressure is needed for sticky mixes. Monitor the operation of the machine regularly to ensure smooth rotation and no abnormal noise.

● Daily Maintenance: Clean the screen and water nozzles at least once a week to prevent clogging, which can reduce washing efficiency. Check the wear of the drum liners and bearings monthly, and replace them if necessary. Inspect the slurry pump and pipelines for any blockage or damage.

FAQ

Q: Does the Fully Automatic Rotary Concrete Reclaimer require full-time operators?

A: No, it supports fully automatic and unattended operation. Only regular inspections are needed.

Q: Can it handle high-slump and sticky concrete?

A: Yes, the adjustable water pressure and drum speed adapt to different concrete conditions.

Q: Can it achieve zero sewage discharge?

A: Yes, with a supporting water recycling system, full water reuse and zero discharge can be realized.