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| Warranty: | One Year |
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A centrifuge is a mechanical device that uses centrifugal force to separate the components of a mixture of liquid and solid particles or liquid and liquid. Centrifuges are mainly used to separate solid particles from liquids in suspensions, or to separate two immiscible liquids with different densities in emulsions (such as separating cream from milk); It can also be used to remove liquids from wet solids, such as using a washing machine to dry or wet clothes; Special high-speed tube separators can also separate gas mixtures of different densities; Taking advantage of the different settling speeds of solid particles with different densities or particle sizes in liquids, some settling centrifuges can also classify solid particles according to density or particle size.
Centrifuge principle
When a suspension containing small particles is stationary, the suspended particles gradually sink due to the effect of the gravity field. The heavier the particle, the faster it sinks, and conversely, particles with lower density than liquids will float up. The speed at which particles move in a gravity field is related to their size, shape, and density, as well as the strength of the gravity field and the viscosity of the liquid. Particles the size of red blood cells, with a diameter of several micrometers, can be observed to settle under normal gravity.
In addition, there is also diffusion phenomenon when substances settle in the medium. Diffusion is unconditional and absolute. Diffusion is inversely proportional to the mass of a substance, with smaller particles leading to more severe diffusion. And settlement is relative, conditional, and requires external forces to move. Settlement is directly proportional to the weight of an object, with larger particles settling faster. For particles smaller than a few micrometers, such as viruses or proteins, they form colloidal or semi colloidal states in solution, and the sedimentation process cannot be observed solely by gravity. Because the smaller the particle, the slower it settles, while the more severe the diffusion phenomenon. So it is necessary to use a centrifuge to generate strong centrifugal force in order to force these particles to overcome diffusion and produce settling motion.
Centrifuge is the use of the powerful centrifugal force generated by the high-speed rotation of the centrifuge rotor to accelerate the settling speed of particles in the liquid and separate substances with different settling coefficients and buoyancy densities from the sample.
| model | Drum diameter mm | Aspect ratio | Drum speed r/min | separation factor | Motor power kw | Machine weight kg | External dimensions mm |
| LW220*660 | 220 | 3 | 4800 | 2840 | 7.5-11 | 900 | 1650*1150*700 |
| LW220*880 | 220 | 4 | 4300 | 2280 | 7.5-11 | 1000 | 1850*1200*750 |
| LW300*900 | 300 | 3 | 3750 | 2370 | 11-15 | 1300 | 1850*1300*650 |
| LW300*1140 | 300 | 3.8 | 3750 | 2370 | 11-15 | 1500 | 2100*1300*650 |
| LW350*1050 | 350 | 3 | 3700 | 2690 | 15 | 1700 | 2700*1100*1100 |
| LW350*1420 | 355 | 3.8 | 3700 | 2690 | 15-18.5 | 2000 | 3000*1100*1100 |
| LW400*1200 | 400 | 3 | 3500 | 2750 | 18.5-22 | 2500 | 2400*1650*900 |
| LW400*1600 | 400 | 4 | 3200 | 2300 | 22-30 | 2800 | 2800*1650*900 |
| LW450*1440 | 450 | 3.2 | 3000 | 2700 | 22-30 | 3200 | 2800*1650*1100 |
| LW500*1600 | 500 | 3.2 | 2800 | 2200 | 30-37 | 4000 | 3250*1800*1300 |
| LW500*2000 | 500 | 4 | 2800 | 2200 | 45-55 | 4800 | 3650*1800*1300 |
| LW530*2000 | 530 | 3.8 | 2700 | 2170 | 45-55 | 5200 | 3800*1950*1400 |
Decanter Centrifuger
A horizontal spiral centrifuge is a type of spiral discharge settling centrifuge, which is pushed by the blades on the spiral feeder to the slag discharge port at the small end of the drum for discharge, and the liquid phase overflows through the overflow hole at the large end of the drum. In this continuous cycle, to achieve the goal of continuous separation.
Operational principle
A horizontal spiral centrifuge is a type of spiral discharge settling centrifuge. It mainly consists of components such as a high-speed drum, a spiral conveyor with a hollow shaft that turns the same as the drum and has a slightly lower speed than the drum, and a differential. When the suspension to be separated is fed into the drum by a hollow shaft, it is immediately thrown into the drum cavity under the centrifugal force generated by high-speed rotation. The high-speed rotating drum generates strong centrifugal force, which throws solid particles with higher density than the liquid phase onto the inner wall of the drum, forming a solid layer (called a solid ring layer due to its ring shape); Due to its low density and centrifugal force, water can only form a liquid layer on the inner side of the solid ring layer, known as the liquid ring layer. Due to the different rotational speeds of the screw and the drum, there is a relative motion (i.e. speed difference) between the two. By using the relative motion of the screw and drum, the sludge in the solid ring layer is slowly pushed to the cone end of the drum, and after passing through the drying area, it is continuously discharged from the outlet distributed around the circumference of the drum; The liquid in the liquid ring layer is continuously discharged by gravity from the weir outlet to the outside of the drum, forming a separated liquid.
Operation management
Due to the fact that the system is a blast furnace gas washing water and sludge treatment system, the water quality of its recovery varies greatly, the sludge particles cause severe equipment wear and tear, and there are many uncertain factors affecting the external environment. In addition, the system has a variety of treatment equipment types and interlaced treatment processes, which require high requirements for operating personnel. Therefore, to ensure the normal operation of each link and fully play the role of each facility and equipment, it is necessary to strengthen daily operation management, There should be a set of management measures to ensure it.
Effect
The horizontal spiral centrifuge uses the principle of centrifugal settling to separate drilling suspension, and pushes the blades on the spiral feeder to the slag discharge port at the small end of the drum for discharge. The liquid phase overflows through the overflow hole at the large end of the drum. In this continuous cycle, to achieve the goal of continuous separation.
Liquid separation
1: Adopting involute planetary gear differential, with large transmission ratio and high accuracy.
2: The entire machine is equipped with a mechanical and electrical dual overload protection device, ensuring safe use.
3: The main motor of the power frequency speed regulation type is equipped with a hydraulic coupling, and the motor runs smoothly.
4: High quality stainless steel material with strong corrosion resistance is selected for the contact area with materials.
5: The whole machine adopts an integral frame structure, which is safe and convenient for lifting, and occupies a small area.
6: The explosion-proof level of power frequency and variable frequency electrical appliances is Exd BT4, and the sealing performance of the control box is good.
1. Competitive factory prices and excellent quality.
2. Over 20 years of partner experience.
3. Product Quality Certification SGS CCC ISO.
4. Comprehensive after-sales service.
5. The customized products we offer.
6. Exported to over 50 countries and regions.
7. We can provide lifelong trailer accessories.
1,What are your shipping conditions?
Answer: Usually, we transport trucks through roll on/roll off ships, bulk carriers, containers, etc.
2,What are your payment terms?
Answer: T/T 30% as deposit, 70% before delivery. Before you make the remaining payment, we will show you photos of the product and packaging.
3,What are your delivery terms?
Answer: Factory price, FOB price, CFR price, CIF price
4,How is your delivery time?
Answer: Generally speaking, it takes about 10 to 20 days to receive the advance payment. The specific delivery time depends on the items and quantity in your order.
5,Do you test all the goods before delivery?
Answer: Yes, we conducted 100% testing before delivery.
6,How can you establish a long-term good relationship with our business?
Answer: 1. We maintain good quality and competitive prices to ensure that our customers benefit;
2.We respect every customer as our friend, no matter where they come from, we sincerely do business with them and make friends.
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