 |
| Quantity: | |
|---|---|
WSF360
BOEEP
WSF
As a dedicated manufacturer and supplier of advanced water treatment solutions, we present the high-efficiency Screw Grit Removal system designed for precise wastewater solids classification.
Engineered to protect downstream aeration basins and mechanical components from abrasive damage.
Built for continuous, heavy-duty applications within municipal sewage treatment plants.
Features a compact, integrated design that ensures rapid installation and reliable, long-term operation.
The screw grit removal system is meticulously engineered to serve as the primary defense line in municipal sewage treatment plants. Upon approaching the equipment, operators will notice the robust, industrial-grade stainless steel construction, featuring a precisely angled slope bottom tank seamlessly integrated with a heavy-duty screw conveyor. The smooth, polished exterior resists harsh environmental elements, while the internal mechanics operate with a reassuringly low, steady hum, indicating precise engineering and balanced rotation. This visual and auditory feedback assures facility managers of the equipment's enduring build quality.
As the grit-laden water enters the tank, the heavier particles settle to the bottom through gravity. The slowly rotating auger then captures these settled solids, gently lifting them along the 25-degree incline. During this upward journey, excess water drains back into the reservoir, ensuring that the discharged material achieves a remarkably dry state. This continuous process not only prevents abrasive damage to downstream pumps and fine bubble diffusers but also drastically reduces the volume of waste requiring disposal. By effectively classifying and removing abrasive solids, this system transforms a chaotic, grit-heavy influent into a manageable, streamlined flow, safeguarding the entire facility's operational integrity.
We provide comprehensive technical parameters to ensure seamless integration into your existing municipal sewage treatment plant infrastructure. The data below outlines the precise capabilities, dimensions, and operational limits of our screw grit classifier models, ensuring you have the exact specifications required for project planning.
Grit dry solid content | >60% | Grit Separation efficiency | ≥98% |
|---|---|---|---|
Grit diameter | >0.2mm | Capacity Incoming Flow | Q=20-27L/S |
The width of U type trough | B=360mm | Screw diameter | D=320mm |
Rotational speed | V=5r/min | Angle | α=25° |
Motor power | N=0.75kw | Motor Protect level | IP55 |
Motor insulation level | F level | Working time | 24 hours/day continuous run or interval run |
Model \ Size | Outer diameter of screw | L1 | L0 | L | H | H0 | B | B1 | B2 | C | U | DN1 | DN2 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
WSF260 | 220 | 2800 | 3840 | 4000 | 1600 | 1550 | 1200 | 310 | 1250 | 220 | 260 | 100 | 150 |
WSF320 | 280 | 2800 | 4380 | 4500 | 1700 | 1750 | 1260 | 370 | 1310 | 270 | 320 | 150 | 200 |
WSF360 | 320 | 3800 | 5760 | 6000 | 2150 | 2400 | 1420 | 410 | 1470 | 320 | 360 | 200 | 250 |
WSF420 | 380 | 3800 | 6150 | 6500 | 2150 | 2550 | 1720 | 470 | 1770 | 390 | 420 | 250 | 300 |
Item \ Model | Shaftless Grit Classifier | Shaft Grit Classifier | |||||
|---|---|---|---|---|---|---|---|
WSF260 | WSF320 | WSF360 | WSF420 | LSF500 | LSF600 | LSF750 | |
Outer diameter of screw (mm) | 220 | 280 | 320 | 380 | 500 | 600 | 750 |
Capacity (m³/h) | 18-43 | 43-72 | 72-97 | 97-126 | 600 | 1000 | 1800 |
Power (kw) | 0.37 | 0.75 | 1.5 | 3 | 5.5 | 5.5 | |
Speed (rpm) | 5 | 4.8 | 5.2 | 4 | |||
Particle diameter (mm) | ≥0.2 | ||||||
Engineered for maximum reliability and minimal operator intervention, our grit classification equipment incorporates several advanced design elements. The core structure consists of a high-performance driving unit, a durable auger, a spacious water tank, a precision-engineered U-shape chute, and replaceable liner strips.
Bearing-Free Underwater Operation: Utilizing a screw conveyor without underwater bearings significantly decreases maintenance needs and prevents premature mechanical failure caused by submerged moving parts.
Replaceable Low-Friction Liners: The interior of the U-trough is lined with a specialized, low-friction, and wear-resistant material. This surface ensures smooth conveying while being remarkably easy to change during routine servicing.
Integrated Plug-and-Play Design: Delivered as a highly integrated equipment package, it offers unparalleled convenience for both transportation and on-site installation, reducing setup times dramatically.
Optimized Moisture Reduction: The precise 25-degree incline and slow rotational speed work in harmony to drain excess water, ensuring the discharged material remains highly concentrated and easy to handle.
The primary objective of any grit handling facility is to protect the integrity of downstream water treatment processes. Our equipment excels in this critical area by delivering exceptional separation capabilities that procurement managers can rely on.
High-Precision Particle Capture: The system achieves an impressive grit separation efficiency of ≥98% for particles with a diameter greater than 0.2mm, ensuring that abrasive materials are effectively intercepted before they can cause damage.
Superior Dewatering Output: By maintaining a grit dry solid content of >60%, the discharged material is significantly lighter and less voluminous, slashing disposal transportation costs.
Downstream Asset Protection: This rigorous separation prevents heavy grit from accumulating in aeration basins, thereby maintaining optimal treatment volumes and preventing severe wear and tear on expensive pumps and mechanical sludge scrapers.
The environment within a grit separation unit is inherently abrasive and highly corrosive. To combat this, our design philosophy prioritizes longevity and resilience through advanced material selection and structural innovation.
Elimination of Submerged Vulnerabilities: By engineering the system with absolutely no underwater bearings, we have eradicated the most common point of failure in traditional classifiers, preventing water ingress and subsequent corrosion.
Advanced U-Trough Protection: The internal U-shape chute features a specialized low-friction, wear-resistant liner strip. This sacrificial layer absorbs the brunt of the abrasive action from the moving grit, protecting the main stainless steel body.
Simplified Maintenance: When the liner eventually wears, it is designed to be easily and quickly replaced without requiring extensive downtime or specialized heavy tools, keeping operational disruptions to an absolute minimum.
Space is often at a premium in municipal sewage treatment plants. Recognizing this constraint, our grit removal system features a highly compact, integrated architecture that maximizes spatial efficiency without compromising on heavy-duty performance.
Optimized Incline Geometry: The auger is strategically positioned at a 25-degree angle. This specific inclination provides the perfect balance between effective water drainage and minimal horizontal footprint.
All-in-One Integration: The driving unit, slope bottom tank, and conveying mechanism are built into a single, cohesive unit. This integrated equipment approach drastically reduces the need for extensive civil engineering modifications.
Cost-Effective Installation: Because the system requires a smaller physical area and arrives pre-assembled, facility managers can significantly cut down on site preparation and installation labor costs.
Facility operators are constantly looking for ways to optimize total lifecycle costs. This equipment is specifically designed to be highly cost-effective, delivering robust performance while keeping daily operational expenses exceptionally low.
Energy-Efficient Operation: Powered by a highly efficient 0.75kw motor, the system consumes minimal electricity even during continuous 24-hour operation, leading to substantial energy savings over the equipment's lifespan.
Flexible Running Modes: The control system supports both continuous and interval running schedules, allowing operators to tailor the equipment's activity to the actual incoming flow (Q=20-27L/S), further conserving power.
Reduced Labor Requirements: The automated nature of the separation and discharge process, combined with the low-maintenance design, means that facility staff can focus on other critical plant operations rather than constant equipment monitoring.
No two wastewater treatment facilities are exactly alike, which is why our classification equipment is built with ultimate adaptability in mind. It seamlessly integrates into various process flows to meet specific site requirements.
Versatile Deployment Options: The unit functions flawlessly as a stand-alone grit separator for smaller setups or specific targeted applications within a larger plant network.
Synergy with Upstream Equipment: It is engineered to work in perfect conjunction with a Grit Vortex Separator. The concentrated grit and water mixture can be easily airlifted or pumped directly into our classifier for the final stages of separation and dewatering.
Broad Capacity Range: With multiple models available, the system can be precisely matched to handle varying volumes of grit, ensuring optimal flow management regardless of the plant's size.
Maintaining a safe, compliant, and pleasant working environment is a top priority for modern municipal facilities. Our grit classifier plays a crucial role in minimizing the environmental impact of solid waste handling.
Moisture and Organic Reduction: By achieving a high dry solid content, the equipment effectively washes away and drains the putrescible organic matter that typically clings to raw grit.
Odor Mitigation: The removal of these decaying organics significantly reduces the generation of foul odors, drastically improving the air quality and working conditions for plant personnel.
Cleaner Disposal: The resulting dry, washed grit is much cleaner and more stable, meeting strict environmental regulations for landfill disposal and preventing secondary contamination during transport.
Selecting the right equipment manufacturer is just as important as the technology itself. We pride ourselves on delivering not just machinery, but comprehensive solutions backed by industry expertise and unwavering support.
Stringent Quality Control: Every unit undergoes rigorous testing before leaving our facility, ensuring that the motor protection (IP55) and insulation (F level) meet the highest international standards for safe operation.
Deep Industry Expertise: With years of specialized experience in municipal sewage treatment applications, our engineering team understands the unique challenges of solid-liquid separation and designs equipment specifically to overcome them.
Reliable Global Supply: As a trusted manufacturer, we maintain robust production capabilities, ensuring that your equipment is delivered on time, securely packaged, and ready for immediate deployment.
Comprehensive Support: From initial consultation and custom sizing to installation guidance and long-term maintenance advice, our dedicated support team is always available to ensure your operations run smoothly.
To assist you in making an informed procurement decision, we have compiled answers to the most common technical inquiries regarding our grit classification systems.
Q: How does the absence of an underwater bearing improve the lifespan of the equipment?
A: Submerged bearings are highly susceptible to water ingress and abrasive damage from grit particles. By completely removing bearings from the underwater section of the U-trough, we eliminate the primary source of mechanical wear and corrosion, thereby significantly extending the operational lifespan of the auger and reducing unexpected maintenance downtime.
Q: Can this system handle highly variable incoming flow rates?
A: Yes. The equipment is designed to process an incoming flow capacity of 20-27 L/S. For facilities with highly fluctuating loads, the system can be configured for interval running rather than continuous 24-hour operation, allowing it to adapt efficiently to the actual volume of grit being airlifted or pumped from the upstream vortex separator.
Q: What is the procedure for replacing the wear-resistant liner strip?
A: The low-friction liner inside the U-shape chute is designed for easy access. During scheduled maintenance, the equipment is drained and locked out. Technicians can then unbolt and slide out the worn liner sections, replacing them with new strips without the need to dismantle the heavy screw conveyor or the driving unit, making the process fast and straightforward.
Q: Does the 25-degree angle affect the moisture content of the discharged grit?
A: The 25-degree installation angle is precisely calculated to optimize dewatering. As the screw lifts the grit up this incline at a slow rotational speed of 5 r/min, gravity pulls the excess water back down into the tank. This specific angle ensures sufficient retention time for drainage, guaranteeing that the final discharged grit achieves a dry solid content of over 60%.
Q: Is it possible to customize the motor specifications for specific regional power standards?
A: Absolutely. While our standard configuration features a highly efficient 0.75kw motor with IP55 protection and F level insulation, we operate as a flexible manufacturer. We can equip the driving unit with motors that meet specific voltage, frequency, or higher explosion-proof ratings required by your local municipal regulations or facility standards.
