Decanter Centrifuge
Shenzhou Machinery - Professional Industrial Centrifuge Machine Manufacturer and Centrifugal Separators Supplier in China
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Shenzhou Machinery - Professional Industrial Centrifuge Machine Manufacturer and Centrifugal Separators Supplier in China
Decanter centrifuge can generally be divided into horizontal spiral filtration centrifuge and horizontal spiral settling centrifuge.
A decanter centrifuge is a settling equipment that operates continuously and discharges materials horizontally. The working principle of this type of centrifuge is that the drum and the screw rotate at a certain differential speed and high speed in the same direction. The material is continuously introduced into the inner cylinder of the conveying screw through the feeding pipe, accelerated and enters the drum. Under the action of the centrifugal force field, heavier solid substances deposit on the drum wall to form a sediment layer. The feeding spiral continuously pushes the deposited solid phase to the cone end of the drum and discharges it outside the machine through the slag discharge outlet. The lighter liquid phase forms an inner liquid ring, which continuously overflows from the large end overflow port of the drum and is discharged outside the machine through the discharge port. This machine can continuously feed, separate, wash, and discharge materials at full speed. It has the characteristics of compact structure, continuous operation, smooth operation, strong adaptability, high production capacity, and convenient maintenance. Suitable for separating suspensions containing solid particles with a particle size greater than 0.005mm and a concentration range of 2-40%. Widely used in industries such as chemical, light industry, pharmaceutical, food, environmental protection, etc
Choosing the appropriate decanter centrifuge not only solves production problems and improves work efficiency, but also saves production costs and reduces business risks. The main factors affecting selection are as follows:
1. Centrifuge speed: Generally, a horizontal screw centrifuge should be above 3000 revolutions per minute. The higher the speed, the higher the separation factor of the centrifuge, and the better the separation effect.
2. Material of centrifuge: Different materials have different physical and chemical indicators such as wear resistance and corrosion resistance. The lowest material for centrifuge in foreign countries is generally 316L or duplex stainless steel, and the abrasive components must be made of ceramic composite materials.
3. Differential control of centrifuge: Different differentials have different control accuracies, and there is a significant difference in lifespan and maintenance costs. The higher the differential accuracy, the better the adaptability to materials. Therefore, it is advisable to choose equipment with high differential accuracy.
4. Length to diameter ratio: The larger the length to diameter ratio of a centrifuge, the greater its processing capacity and the lower its moisture content.
5. Control system: Is it automated programming control? Currently, domestic and foreign equipment manufacturers have basically achieved full automation control of the equipment.
6. Installation power: affects the control of energy consumption. Generally, domestic equipment has a higher energy consumption ratio, while foreign equipment has a lower energy consumption ratio.
7. Processing and manufacturing technology: The horizontal screw centrifuge is a separation equipment that requires high-precision processing. Enterprises that do not have precision processing capabilities have high maintenance rates and limited processing capabilities for their products.
Application industry
Sludge dewatering Particle size classification Liquid phase clarification Power plant sludge Titanium dioxide soybean protein
Printing and dyeing sludge kaolin Peanut protein Paper making sludge starch fruit juice Natural gas desulfurization sludge
Drilling mud slurry Drinks Calcium carbide sludge Coal powder flotation vegetable oil Fiber board sludge Crystal stone flotation
citric acid Drilling mud slurry diatomite Waste oil purification Chlorine mud Gypsum Purification of washing water
Beating sludge bauxite orange activated sludge Porcelain clay Zymotic fluid Gypsum paddle mineral Plant extract
Environmental status
The horizontal spiral centrifuge mainly refers to the dewatering of sludge generated in industrial and civil wastewater treatment processes in environmental applications. Today, environmental issues have become a global concern. In this context, the value of the decanter centrifuge is reflected. Previously, sewage treatment plants or related treatment plants used self settling or belt filter presses for sludge dewatering and concentration. Experiments have shown that reducing the moisture content of sludge from 98% to 80% can reduce its volume by 10 times. Therefore, the decanter centrifuge has been widely used and promoted in the field of environmental protection due to its inherent characteristics of large processing capacity, automated operation, and good dewatering effect. The single product sales of the horizontal screw centrifuge account for about half of all centrifuge products, establishing its irreplaceable position. In foreign countries, the preferred choice for sewage treatment equipment is the horizontal screw centrifuge.
characteristic:
1: Adopting involute planetary gear differential, with large transmission ratio and high precision.
2: The whole machine is equipped with mechanical and electrical dual overload protection devices, ensuring safe use.
3: The main motor with power frequency speed regulation is equipped with a hydraulic coupling, and the motor runs smoothly.
4: High quality stainless steel materials with strong corrosion resistance are selected for the parts in contact with materials.
5: The whole machine adopts an integral frame structure, which is safe and convenient to lift, and occupies a small area.
6: The explosion-proof level of power frequency and frequency conversion electrical appliances is Exd Ⅱ BT4, and the sealing performance of the control box is good.
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