How to choose your suitable centrifuge

Users should select suitable centrifuges according to the use situation, material properties and other factors to achieve the expected purpose There are three problems that must be paid attention to when selecting the type: 1 Corrosion resistance: the materials separated by the centrifuge generally have certain corrosiveness, and the materials of the parts contacting with the materials must be able to meet the requirements of corrosion resistance to ensure safe use The type of structural material (304, 321, 316L, titanium plate), sealing ring, gasket material, surface treatment measures (plastic lining, rubber lining, surface spraying Halar), and filter cloth material shall be determined during selection The manufacturer can be informed of the material properties (chemical properties, separation temperature, etc.) during selection, so that the manufacturer can make suggestions on the selection of centrifuge materials according to the characteristics of the separated medium, and indicate them in the order to ensure the anti-corrosion requirements of the centrifuge 2 Explosion proof performance: if the materials (or environment) processed by the centrifuge contain flammable and explosive substances such as organic solvents, the centrifuge shall have explosion-proof performance The explosion-proof performance depends on the explosion-proof requirements (grade) of the process In the past, only the explosion-proof motor was proposed In the past two years, most of the processed materials containing organic solvents, such as solvents, have put forward the requirements of nitrogen protection In fact, in order to realize the real explosion-proof of centrifuge, many measures should be taken in the aspects of machinery, electric control, accessories configuration, etc., such as: electric control system: explosion-proof barrier, non-contact energy consumption braking system, electrostatic grounding, explosion-proof automatic control Mechanical system: explosion-proof motor, explosion-proof lighting, anti-collision measures, anti-static drive belt Explosion proof accessories: nitrogen protection device, nitrogen online detection, on-site explosion-proof control button Therefore, in the case of explosion-proof requirements, the user shall specify the separated medium, explosion-proof requirements and grades, configure corresponding devices and take appropriate measures to meet the explosion-proof requirements when ordering 3 Separation performance separation performance is the basic function of Zui centrifuge, including separation effect, washing effect, processing capacity, automation degree, etc In order selection, it is difficult to determine the final separation effect of Zui because of the difference of material properties, including viscosity, particle size and its distribution, density, solid-liquid ratio of slurry and other factors Generally speaking, the separation factor is an important factor affecting the separation effect of centrifuge The separation factor is the ratio of the centrifugal force and the gravity of the separated material in the centrifugal force field, which is related to the rotating speed and the diameter of the drum F t = ω 2R / g, where ft is the separation factor ω is the drum angular velocity rad / S R is the drum diameter mg is the gravitational acceleration M / S2, for some materials, the filter cake needs to be washed by the washing solution, and some even needs to be washed several times to meet the requirements, which requires the configuration of washing pipe The washing effect has a great influence on washing time, washing speed and washing tube structure The processing capacity of centrifuge is related to the physical and chemical properties of materials and separation requirements Generally, it is estimated by the number of cycles per hour and the weight of filter cake in a single operation.