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shenzhou Separation Decanters for Sand & Gravel Washing Water Treatment
Products Description
Sand has a wide range of uses. Therefore, there is a large demand for sand worldwide. However, sand washing plants generally store large amounts of sludge with ultrafine particles or clay ultrafine powder. If the sludge is allowed to be discharged directly into rivers or ponds, it will cause significant damage the water environment. At the same time, production companies will also face environmental fines. Therefore, the sand washing plant needs a decanter centrifuge to solve this problem.
The Shenzhou Decanter centrifuge is the best equipment for sand washing water and gravel washing water treatment. The amount of sludge that can be processed per day can reach more than 2,000 tons. The Shenzhou decanter centrifuge has the following advantages when processing sand washing water: it can significantly reduce water consumption and promote wastewater recycling. The equipment can operate continuously and efficiently, improving the efficiency of sand washing water treatment. The equipment occupies a limited area: small space, strong environmental adaptability.
Starch Extraction Centrifuge Parameter
Speed ： 3000 rpm
Max G Force：2415g
Main Motor：55 KW
Auxiliary Motor: 15 KW
Production Capacity：5~50 m3/h
Weight ：4930kg
Dimension：5150*1270*1440 mm
Drive Type：VFD + PLC + HMI
Bowl Material: SUS2205(Duplex Stainless Steel) / SUS2304 (Duplex Stainless Steel) / 316L / 316 Centrifugal Casting
Screw Material: SUS2205(Duplex Stainless Steel) / SUS2304 (Duplex Stainless Steel) / 316L / 316 Centrifugal Casting
Bearing：SKF / NSK
Sand and gravel washing wastewater treatment Process
The separation process of a Decanter Centrifuge in sand and gravel wastewater treatment involves the following steps:
1. Inlet of Raw Wastewater:
▷ Untreated wastewater from sand and gravel processing is introduced into the system.
2. Preliminary Screening:
▷ Prior to entering the Decanter Centrifuge, the wastewater undergoes preliminary screening to remove larger particles and debris.
3. Centrifugation:
▷ The pre-screened wastewater enters the Decanter Centrifuge, where it undergoes high-speed rotation.
▷ Centrifugal force is generated, leading to the separation of solid particles, such as sand and gravel, from the liquid phase.
4. Formation of Layers:
▷ The centrifuge facilitates the formation of distinct layers within the rotating drum.
▷ Heavier solid particles are forced towards the outer edges, forming a sediment layer, while the clarified liquid phase remains in the
center.
5. Solid-Liquid Separation:
▷ The centrifuge's design enables efficient separation of solid and liquid components based on their densities.
▷ Solid particles accumulate at the periphery, forming a cake, while the clarified liquid moves towards the center.
6. Solids Discharge:
▷ The separated solid cake, primarily composed of sand and gravel, is periodically or continuously discharged from the centrifuge.
7. Effluent Discharge:
▷ The clarified liquid, now free from a significant portion of suspended solids, is discharged as treated effluent.
▷ This high-quality water can be reused in the processing plant or safely released into the environment.
8. Continuous Operation:
▷ The Decanter Centrifuge operates continuously, ensuring a consistent and automated separation process for incoming wastewater.
9. Monitoring and Control:
▷ Operators monitor the centrifuge's performance through a user-friendly interface, making adjustments as needed to optimize the separation efficiency.
10. Maintenance and Cleaning:
▷ Regular maintenance and cleaning procedures are essential to ensure the continued effectiveness and longevity of the Decanter Centrifuge.
Why choose Shenzhou Decanter Centrifuge
Our advantage
Reliable Quality
The bowl (core component) is made of SAF 2205 duplex stainless steel by centrifugal casting process, and its performance is superior to conventional 304 and 316L. All weld joints have undergone flaw detection and thermal treatment, and are provided with certificates of conformity or records for traceability.
Stable Operation
The dynamic balance precision of the centrifuge is ≥ Class 2.5, which is superior to the requirement of the standard, so that the centrifuge can be operated smoothly and its longevity is extended. The noise is < 85 dB, the vibration intensity is < 7.1 (load) and 4.5 (no-load). It is equipped with a mechanical and electrical dual overload protection device to ensure safe operation.
Long Service Life
The screw conveyor and bowl adopt of the most advanced, reliable and convenient wear-resistant treatment technology and structure in China. All bearings adopt original imported NSK/SKF bearings. The electric control box is made of electrical elements of famous brands such as Siemens and Schneider.
High Degree of Automation
It can automatically adjust the screw conveyor's differential speed, to prevent overload and blockage. and equipped with bearing temperature sensor and vibration sensor, and is provided with alarms for main motor overload, differential over torque, low differential speed, etc. Meanwhile, its supporting frequency conversion (flameproof) control cabinet can realize automatic start and stop with one key.
Sand washing water treatment application cases
key Features of Shenzhou Decanter centrifuge
Optimized Solid-Liquid Separation: The Decanter Centrifuge excels in efficiently separating fine particles from water, enhancing the clarity and quality of the treated water in sand and gravel washing operations.
Adaptable for Various Applications: With customizable settings, our centrifuge accommodates diverse compositions of sand and gravel, allowing operators to fine-tune the process to meet specific industry requirements.
Durable Construction: Engineered for rugged reliability, this centrifuge is constructed to withstand the challenging conditions of sand and gravel washing, ensuring longevity and consistent performance.
High-Speed Rotation: The centrifuge's high-speed rotation facilitates swift sedimentation, effectively removing impurities and solids from the water, resulting in cleaner and clearer water discharge.
Continuous and Automated Operation: Designed for seamless and uninterrupted operation, our Decanter Centrifuge ensures a continuous and automated process, reducing downtime and maximizing operational efficiency.
Environmental Stewardship: By optimizing water treatment, our centrifuge contributes to environmental sustainability by minimizing water consumption and reducing the environmental impact associated with sand and gravel washing activities.
User-Friendly Interface: Equipped with an intuitive interface, operators can easily monitor and control the centrifuge, ensuring user-friendly operation and efficient water treatment processes.
Choose our Decanter Centrifuge for the Sand & Gravel Washing Water Treatment industry-a solution that combines cutting-edge technology with durability, setting new benchmarks in efficiency and environmental responsibility.
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