How to choose the right centrifuge is crucial for the user, which is related to the company's production, safety, separation effect, until the finished product, so the user must pay attention to the following three points when selecting the centrifuge:
1. Explosion-proof function: sludge dewatering centrifuge disposal of the guessing (or environment) such as rich in organic solvents and other flammable and explosive substances, the centrifuge should have explosion-proof function explosion-proof function according to the explosion-proof needs of the skills (grade). Previously involved in explosion-proof occasions, only equipped with explosion-proof motors, in the past two years, for the disposal of objects containing organic solvents and other occasions, most of the need for nitrogen protection. In fact, the centrifuge to complete the explosion-proof in the real sense, in the mechanical, electronic control, accessories, etc., to use a variety of methods, such as: electrical control system: explosion-proof barrier grid, non-contact energy consumption brake system, electrostatic grounding, explosion-proof active control.
Mechanical system: explosion-proof motor, explosion-proof lighting, anti-collision method, anti-static transmission belt.
Explosion-proof accessories: nitrogen protection equipment, nitrogen online inspection, on-site explosion-proof control button.
Therefore, for the occasion of explosion-proof needs, the user should clarify the respective media, explosion-proof needs and grades when ordering, and be equipped with the corresponding equipment and appropriate methods to meet the explosion-proof needs.
2. Anti-corrosion function: centrifuge materials are assumed to have certain corrosion, and some materials in contact with the material, it is necessary to reach the need for corrosion resistance to ensure safe use.
Structural parts material variety (304, 321, 316L, titanium plate), sealing ring, gasket material, surface treatment method (lining plastic, lining rubber, surface coating), and filter cloth material should be determined in the selection. The nature of the material (chemical properties, temperature, etc.) can be informed to the manufacturer during the selection, so that the manufacturer can put forward suggestions for the selection of centrifuge material according to the characteristics of the respective media, and indicate it in the order to ensure the corrosion protection needs of the centrifuge.
3. Tespectively function
The function of separation is the most basic function, including the effect of separation, washing effect, disposal talent, active degree, etc. At the beginning of the order, due to the difference in the nature of the material, including the viscosity of the material, particle size, density, solid-liquid ratio of the slurry and other factors, it is difficult to accurately determine the final separation effect, usually using the centrifuge's separation factor to measure the centrifuge's separation effect.
The disposal talent of the centrifuge is related to the physical and chemical properties of the material and the respective needs, and is usually calculated by the number of cycles in an hour and the weight of the filter cake in a single work. The separation factor is related to the rotation speed of the drum and the diameter of the drum, and is squared with the angular velocity of the drum.
Ft = ωr2/g
Where: Ft is the separation factor ω is the drum Angle velocity r/sr is the drum diameter mmg is the gravitational acceleration.
