Shenzhou decanter centrifuges use considerably less fresh water than belt presses or chamber filter presses. Our decanter centrifuges efficiently separate solid particles down to a size of 10 µm without using flocculants. If the operator uses flocculants, it is possible to separate even finer solids from the liquid (water). The recovered process water is then clean enough to be returned to the process. As a result, mine operators can significantly reduce fresh water requirements.
Filter presses, such as belt presses and chamber filter presses, rely on the use of filter cloths or filter belts to process the overburden sludge. During prolonged use, deposits accumulate in the filter cloths and filter belts. This reduces the degree of dewatering.
Decanter centrifuges operate continuously - often around the clock. They do not require filter cloths and filter belts. A constant dewatering rate is therefore assured.
Mines or mining operations are often located in confined and difficult to reach locations. The space taken up by the dewatering system is an important factor. Given the same capacity and throughput, decanter centrifuges require considerably less space than other processing plants. Shenzhou decanter centrifuges can be installed almost anywhere - either as a fixed installation in a building or as a semi-mobile container unit. Our centrifuges only need a ground area of 5 x 10 meters.
A comparison
With a hydraulic capacity of 100 m³/h and a solids load of 25,000 kg, there are considerable differences in the weight of the plant:
Chamber filter press: 120 tons
Belt press: 65 tons
centrifuge: 16 tons
Dewatering tailings makes it possible to store dry processed sludge. Dry storage means a lower risk. The amount of wastewater in the settling ponds and the pressure on the dams is reduced. This significantly reduces environmental risks.
Shenzhou decanter centrifuges for dewatering tailings are manufactured only in China. Thus we can ensure the optimal quality of our machines. The quality of the materials used in mining and quarrying plays an important role. Materials which come into contact with the sludge are attacked by the sludge's abrasive components. A high-quality wear protection is therefore a must.
Special materials, coatings and supplementary measures ensure that the service life of Shenzhou decanter centrifuges spans many years. Shenzhou centrifuges allow for the easy replacement of wear parts such as inlet bushings. This saves time and reduces the cost of maintenance and servicing throughout the entire life of the machine.
Decanter centrifuges are increasingly finding their way into modern mining processes due to their low cost, low fresh water usage and low space requirements as well as their contribution to environmental protection.
Reference standard
Technical parameterName | Unit | Parameter |
Model | LWM760 | LWM760*3040-N |
Capacity | M3/h | 10-160M3/H |
Solid content | % | 0.5~20 |
Design Rotation speed | r/min | 2260Variable frequency speed regulation |
Working rotation speed | r/min | 2000Variable frequency speed regulation |
Max Separation factor | G | 2060/Variable frequency speed regulation |
Drum diameter | Mm | 760 |
Drum length | mm | 3040 |
Slag outlet | Wear-resistant ceramic or hard alloy | |
Mud scraping position of spiral blade | Surface spray welding tungsten carbide protective coating | |
Drum | AISI304/316 stainless steel/2205/2507Duplex steel | |
Screw | AISI304/316 stainless steel/2205/2507Duplex steel | |
Hood | AISI304stainless steel | |
Feed pipe, Drainage and slag discharge pipe | AISI304stainless steel | |
Machine base | High Quality Carbon Steel | |
Screw Torque | Nm | 25000 |
Differential speed | Rpm | 45-80/Stepless adjustable |
Differential adjustment accuracy value | Rpm | ≤1 |
Noise | dB(A) | 90 |
vibration | mm/S | 7.1 |
Motor power | KW | 185(380/3/50HZ) |
explosion protection level | EEx e II T3 | |
Rated voltage | V | 600 |
Protection class | IP | 56 |
Insulation class | F | |
Frequency conversion electric control cabinet | 760 | ZK1 |
Model | Diameter(mm) | Lenght(mm) | Max speed | L/D ratio | G-force | Capacity(m3/h) | Main motor power(Kw) | Weight(kg) | Dimension(mm) |
LW250*1000 | 250 | 1000 | 5000 | 4 | 2722 | 0.5-5 | 7.5 | 950 | 2120*1250*680 |
LW300*900 | 300 | 900 | 4200 | 3 | 2964 | 1-6 | 11 | 1160 | 2150*1300*900 |
LW300*1200 | 300 | 1200 | 4000 | 4 | 2784 | 2-6 | 11 | 1350 | 2450*1300*900 |
LW355*1160 | 355 | 1160 | 3600 | 3.3 | 2576 | 2-8 | 15 | 1400 | 2470*1350*830 |
LW355*1460 | 355 | 1460 | 3600 | 4 | 2576 | 2-10 | 15 | 1800 | 2750*1350*830 |
LW400*1200 | 400 | 1200 | 3200 | 3 | 2294 | 3-12 | 18.5 | 1800 | 2730*1600*1080 |
LW400*1600 | 400 | 1600 | 3000 | 4 | 2016 | 3-15 | 22 | 2000 | 3130*1600*1080 |
LW450*1800 | 450 | 1800 | 2800 | 4 | 1976 | 4-25 | 37 | 2500 | 3320*1700*1130 |
LW500*2000 | 500 | 2000 | 2800 | 4 | 1750 | 5-35 | 45 | 4000 | 3520*1800*1170 |
LW530*1855 | 530 | 1855 | 2600 | 3.5 | 2006 | 5-38 | 55 | 4680 | 3885*1350*1600 |
LW530*2120 | 530 | 2120 | 2400 | 4 | 1709 | 5-40 | 55 | 4800 | 4150*1350*1600 |
LW550*2000 | 550 | 2200 | 2800 | 4 | 2414 | 6-40 | 55 | 5700 | 4570*1380*1600 |
LW650*1950 | 650 | 1950 | 2200 | 3 | 1761 | 6-45 | 75 | 5000 | 4840*1510*1720 |
LW650*2600 | 650 | 2600 | 2000 | 4 | 1456 | 6-65 | 90 | 6000 | 5490-1510*1720 |
LW720*2160 | 720 | 2160 | 2000 | 3 | 1612 | 7-80 | 120 | 6000 | 5200*1600*1800 |
LW720*2880 | 720 | 2880 | 2000 | 4 | 1306 | 7-90 | 120 | 8000 | 3100*1600*1800 |
LW800*2400 | 800 | 2400 | 1800 | 3 | 1451 | 20-100 | 150 | 12000 | 5820*2000*1300 |
LW800*3200 | 800 | 3200 | 1800 | 4 | 1451 | 20-120 | 150 | 13000 | 7100*2000*1300 |