FIELD: process engineering.
SUBSTANCE: set of inventions relates to system comprising sealed centrifugal separator and to method and control in said system. Proposed system controls characteristics of separated heavy component in sealed separator and includes said separator. Note that separator comprises rotor with separation chamber, inlet channel for components to be separated, first and second channels for discharge of one heavy component and one light component. Note here that system comprises extra means to circulate a portion of separated heavy component from second discharge channel to separation channel. First means to monitoring density, flow rate of combination of said parameters of heavy component in second discharge channel. First control means adjusts circulation flow rate in response to control signal from said first monitoring means. In compliance with this method, control over characteristics of separated heavy components in said system first, mix of components is fed from inlet channel to separation chamber. Thereafter mix of components is separated in separation chamber to light and heavy components. Then, at least one light component is fed to first discharge channel and at least one heavy channel is fed to second discharge channel. Thereafter, portion of separated heavy component is returned from second discharge channel into inlet channel. First means monitoring density, flow rate of combination of said parameters of heavy component in second discharge channel to generate control signal in response to said parameters for control purposes.
EFFECT: ruled out plugging of heavy phase discharge pipes.
14 cl, 4 dwg
