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Pulp and Paper Wastewater Treatment

The waste discharge of the paper industry has a huge pollution to the environment, especially the water environment. However, the paper industry needs to use large amounts of water to treat primary fibers such as wood or pulp. Therefore, a centrifuge device for papermaking wastewater treatment is essential for the recovery and treatment of paper wastewater.

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ZK Wastewater Centrifuge for Paper & Pulp Waste Solutions

ZK industrial wastewater centrifuges provide an economical and effective solution for the solid-liquid separation and dewatering of sewage and sludge in paper mills. Especially in the recycling process of printing waste paper, the wastewater will accumulate abnormal residues, separated from the wastewater by a horizontal screw centrifuge, reducing production costs and reducing pollutant emissions. It can also reduce the emission of harmful substances as much as possible.

Industry Waste Water Centrifuge 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

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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.

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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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