Analysis of internal and external structural characteristics of the hydrocyclone

    Internally and externally, hydrocyclone product also catechism to face! Cyclone liner wear layers are made of corundum, high wear-resistant rubber, composite ceramics, KM ceramic composites, polyurethane, etc. depending on the material properties and working conditions. Also it is based on site requirements for the structure of the cyclone wear resistance of the components, in different parts of a cyclone liner wear different materials, in order to increase the overall service life of the cyclone, which over wear-resistant enamel lining material obtained very good results.
    Outer swirl and inner Swirl:
    Outer and inner Swirl is the main form hydrocyclone movement, they have the same direction of rotation, but in the opposite direction of its movement. Thick and heavy outer swirl carrying solid material from the grit discharge port for grit products; within the cyclone carry thin and light solid materials have overflow discharge port for overflow product.
    Shunting:
    To the two-phase fluid into the cyclone, due to the frictional resistance of its walls, part of which at first on another surface and then inward along the lower lid, and the downward movement along the outer wall of the vortex finder, and finally with the confluence of the inner cyclone overflow pipe overflow discharge port. This part of the lid is commonly referred to short-circuit the downstream flow, due to its direct access to the overflow product, without separation, and therefore directly affect separation.
    Circulation flow:
    From outside to inside spiral swirl vortex within the cyclone moved form of two-phase fluid, because the overflow of the overflow pipe discharging too late in its entirety, part of the fluid which is not discharged from the overflow of the cyclone vortex the space between the pipe and the wall, as a top-down bottom-up and then a circular motion to form a recycle stream.
    Zero speed envelope:
    Due to the different fluid movement within the outer swirl and swirl the way, and within the swirl swirling motion is from the outside gradually move into the process of the formation, then one must trace the axial velocity is equal to zero point. Cyclone normal separation process, fluid axial velocity is zero track called zero speed envelope. Zero speed envelope is the centerline of the recycle stream, is inner and outer swirl swirling boundaries. Structural parameters of certain cyclone, its shape and size zero speed envelope substantially unchanged.
    The maximum tangential speed track surface:
    To the two-phase flow into the cyclone body, outside the cyclone to form a spiral vortex swirling inward migration of the process, the tangential velocity of fluid particles have a maximum value, the maximum tangential speed. During normal operation, the cyclone flow trajectory maximum tangential velocity Physique point called maximum tangential speed track surface.
    Air column:
    To the two-phase flow into the cyclone body to spiral vortex movement, with gradually decreasing radius of rotation, the tangential particle velocity increases, when it reaches a certain value will form a negative pressure lower than the external space nips. Fluid entering the negative zone will precipitate from the air, while the air outside space will also be through the discharge port (Spigot and overflow) forming an air column into the negative zone. Internally and externally, cyclone product also catechism to face!