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Sand & Gravel Washing Water Treatment

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.

ZK SEPARATION Decanters for Sand & Gravel Washing Water Treatment Process

ZK 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 ZK 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.

Sand Cleaning Water Decanter Parameters
Model LW250 x 1025E LW350 x 1435E LW450 x 1845E LW520 x 2150E LW580 x 2400E LW650 x 2600E LW750 x 2800E
Speed (rpm) 4500 3500 3200 3000 2800 2600 2200
Max G Force 2835 2435 2580 2620 2546 2460 2033
Main Motor (kW) 11 15 ~ 22 30 ~ 37 55 ~ 75 75 ~ 90 90 ~ 110 110 ~ 160
Back Motor (kW) 4 5.5 7.5 ~ 11 11 ~ 15 15 ~ 18.5 22 30
Capacity (m3/h) 2 ~ 8 4 ~ 15 10 ~ 40 15 ~ 70 25 ~ 80 30 ~ 90 40 ~ 100
Weight (kg) 1250 2500 4200 5200 6500 7800 11000
Dimension (mm) 2500x800x1150 3700x1050x1200 4300x1150x1400 5100x1250x1600 5520x1450x1700 6250x2000x1550 6500x2200x1600
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

See More Similar Fields of Application

Sand Washing Water Treatment Application Cases

  • Sand washing water treatment
    Sand Washing Water Treatment

Why Choose ZK Decanter Centrifuge?

reliable
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 316. All weld joints have undergone flaw detection and thermal treatment, and are provided with certificates of conformity or records for traceability.

stable
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 of the complete machine 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
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.

cpanel
High Degree of Automation

ZK decanter differential speed automatic control technology can automatically adjust the screw conveyor’s differential speed, to prevent overload and blockage. The complete machine is 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.

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