China SLC Series Rotational Flow Grit Removal System - Advanced Air Blower Desanding Equipment
The SLC Series Rotational Flow Grit Basin combines innovative hydrocyclone technology with efficient air blower systems to remove inorganic sand and gravel from water sources. Designed for municipal and industrial wastewater treatment, this system features a compact structure, minimal footprint, and corrosion-resistant materials for long-term durability. Its flexible process layout adapts seamlessly to phased construction projects while ensuring optimal sand settling performance.
| Model | XLC-2430 | XLC-3050 | XLC-3650 | XLC-4870 | XLC-5480 | XLC-5800 | XLC-6100 |
|---|---|---|---|---|---|---|---|
| Pool Diameter (mm) | 2430 | 3050 | 3650 | 4870 | 5480 | 5800 | 6100 |
| Handling Capacity (m³/h) | 720 | 1080 | 1980 | 3170 | 4750 | 6300 | 7200 |
| Impeller Speed (r/min) | 12–20 | ||||||
| Motor Power (kW) | 1.1 | 1.5 | |||||
| Air Blower Flow (m³/min) | 1.75 | 1.75 | 2.03 | 1.98 | 1.98 | 2.01 | 2.01 |
| Air Pressure (kPa) | 39.2 | 39.2 | 44.1 | 53.9 | 53.9 | 58.8 | 58.8 |
| Blower Power (kW) | 2.2 | 3.0 | 4.0 | ||||
| Sand Pump Flow (m³/min) | 25 | 30 | 40 | ||||
| Pump Lift (m) | 2–3 | ||||||
| Pump Power (kW) | 2.2 | 3.0 | 4.0 |
| Parameter | XLC-2430 | XLC-3050 | XLC-3650 | XLC-4870 | XLC-5480 | XLC-5800 | XLC-6100 |
|---|---|---|---|---|---|---|---|
| A | 2430 | 3050 | 3650 | 4870 | 5480 | 5800 | 6100 |
| B | 1000 | 1500 | |||||
| C | 450 | 610 | 750 | 1000 | 1100 | 1200 | 1200 |
| D | 900 | 1200 | 1500 | 2000 | 2200 | 2400 | 2400 |
| E | 300 | 400 | |||||
| F | 1550 | 1550 | 1700 | 2200 | 2200 | 2500 | 2500 |
| G | 400 | 450 | 500 | 1000 | 1000 | 1300 | 1300 |
| J | 400 | 450 | 580 | 600 | 630 | 700 | 750 |
| L | 1150 | 1350 | 1450 | 1850 | 1850 | 1950 | 1950 |
| Centralized Load (kN) | 30 | ||||||
| Max Torque (N·m) | 850 | 1195 |
Tangential Inflow & Swirl Formation:
Wastewater enters tangentially into a conical-bottom circular tank, rotating 270° clockwise (top view) to form a high-speed vortex.
The paddle separator enhances centrifugal forces, accelerating sand sedimentation.
Solid-Liquid Separation:
Sand particles spiral downward to the central hopper due to increased bottom velocity.
Organic matter rises centrally and exits with effluent flow.
Sand Extraction & Recycling:
Collected sand is lifted via air blower (gas lift) or pump to a sand-water separator.
Separated water returns to the bar screen well for reprocessing.
Flow-Adaptive Design: Maintains >85% removal efficiency for particles ≥0.2mm despite flow variations.
Dual Sand-Lift Options:
Gas Lift: Superior separation efficiency.
Pump Lift: Cost-effective for lower-budget projects.
Material Flexibility:
Steel construction for capacities <1080 m³/h.
Reinforced concrete for larger systems.
Automated Control: PLC-regulated sand washing/discharge cycles enable local/remote operation.
Low Operational Costs: Energy-efficient motors and minimal mechanical wear reduce maintenance.
Municipal wastewater pretreatment.
Industrial water desanding (mining, textiles, food processing).
River water intake purification.
Stormwater management systems.
Proven Efficiency: >85% removal of 0.2mm+ particles.
Durability: Corrosion-resistant coatings/materials (e.g., SS304, epoxy steel).
Space Optimization: Compact design reduces civil engineering costs.
Smart Automation: PLC integration for unmanned operation.
Contact Us
For project-specific configurations (capacity, material, control systems), provide your:
Daily wastewater flow rate.
Sand particle size distribution.
Automation requirements (PLC/SCADA).
We deliver tailored solutions within 12 hours!
Main Parameters and Installation Size Chart
Outline and Installation Chart
Packing and Delivery
1. Waterproof packing with the international export standard by 20ft, 40ft, 40hp container. Equipment Fittings, Electric Motor and Power Cabinet will be packed in Wooden Case or Iron Box. Other Equipment will be packed by Color-Stripes Plastic Cloth.
2. The whole plant machinery size are large as normal, so we will use Waterproof cloth to pack all of them. The motor, gear box or other easily damaged parts, we will put them into box. We have a professional shipping department, they will try their best to save your container quantity.
Why Choose Us?
1. Longdai has more than 10 years of experience in wastewater and sludge treatment.
2. We introduce German technology, thus our product is much better than other Chinese manufacturers.
3. We only use the best parts from best supplier.
4. We have our own R&D center and complete manufacture system.
About Us
Located in Yixing, an advanced and beautiful city of Jiangsu Province, China, Longdai Co., Ltd is a processing equipment supplier of petrochemical industry specialized in environmental processing &integrating independent research and development, design, general contracting, environmental protection equipment manufacturing, and relevant material supply.
The main products include mechanical bar screen, air flotation device, dosing device, mud scraper, cooling tower, decanter, chemical degreasing device, hydraulic screen, sand water separator, filter, conveyor, thickener , Biological filter, softened water, buried sewage treatment equipment, etc.
FAQ:
Q: Do You Provide OEM Service?
A: Yes. We Can Do The Customized Design According To Your Different Request for sludge Dewatering.
Q: How About The Production Capacity Of Your Company?
A: Our Factory Covers Area Over 15,000m² And Produces Machines 2000 Sets Per Year.
Q: How Could We Trust You And Your Company? Is This Your First Time Transaction?
A: A: Our Company Has More Than 20 Years Professional Experience. We Cooperate Over 800 Customers in China And Overseas. We Export Nearly 60 Countries All Over The World. And We Have More Than 60+Patents, CE,ISO 9001,SGS Certificates.
Q: Do You Offer After-Sales Service?
A: Video Technical Support, Online Support,Spare Parts, Field Maintenance Repair Service
Q: How Long is Your Warranty?
A: 2 Years After The Arrival Of The Goods. During This Period, As Long As It Is Not a Man-Made Damage, We Send The Damaged Parts Free Of Charge.
