Vibration type cross-flow filter for petrochemical industry

Abstract

The invention discloses a vibration type cross-flow filter for petrochemical industry. The vibration type cross-flow filter comprises a filtering cylinder, wherein a trapezoidal upper end head is arranged at an upper end of the filtering cylinder; a material outlet is formed in a top end of the upper end head; an upper flange is arranged on the material outlet; a material inlet is formed in a lower end of the filtering cylinder; a lower flange is arranged on the material inlet; both the material outlet and the material inlet are connected with a pressure difference adjusting valve; a filter element is arranged in the filtering cylinder; filtrate outlets are formed in an upper end, a middle end and a lower end on one side of the filtering cylinder; a plurality of air vibrators are symmetrically and annularly distributed on an outer wall of the filtering cylinder. The cross-flow filter is provided with three symmetrically arranged filtrate outlets and is combined with the air vibrators, so that the filter is stressed uniformly, changes the dead-end filtration technology adopted in the existing oil industry, can filter continuously, has short filtration time, high filtration efficiency and precision and good effect, does not need to add auxiliary filtration additives, effectively reduces production costs, and has good practicality.

Description

technical field [0001] The invention relates to a filtering device, in particular to a vibrating cross-flow filter used in the petrochemical industry. Background technique [0002] Filtration mainly includes dead-end filtration and cross-flow filtration. Figure 4 The filtration curves and schematic diagrams of these two filtration forms, the dead-end filtration operation is simple, and the material with a solid content of less than 0.1% usually adopts this filtration method, and the cross-flow filtration operation is more complicated than the dead-end filtration, and the material with a solid content of more than 0.5% This filtering method is usually used. [0003] At present, the dead-end filtration technology is mainly used in the petrochemical industry. The dead-end filters mainly include plate and frame filtration, mesh screen, and sand core filtration. The filtration speed of the dead-end filtration depends on the pressure and sedimentation of the suspension. The thic...

AI Technical Summary

Problems solved by technology

Part of the particles adhere to the channel wall. The accumulation of this adsorption effect causes different degrees of difficulty for the liquid to pass through according to the material and physical state of the filter layer, resulting in intermittent filtration, and the filtration efficiency and precision are low and the effect is poor. Add auxiliary filter additives, resulting in high production costs

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