SU1463342A1 - Rotor of vertical centrifuge for separating suspensions in thin film - Google Patents

Abstract

The invention relates to the separation of suspensions in the field of centrifugal forces and can be used in the chemical, food and other industries. The aim of the invention is to improve the quality of the separation of suspensions. The rotor consists of working 2 fixed in the plate holder 1, upper 3 and lower 4 plates. Plate 2 has concentric thresholds 6 and slots 7. The cavity between plates 2 and 4 is divided into two chambers A and B. The angles of inclination of the working surfaces of the thresholds to the generatrix of the cone above chamber A are 28-32 ° C. and above camera B is 18-22 °. The ratio of the distances between the vertices of the thresholds above chamber A and B is 1.1-1.2. The invention makes it possible to obtain a solid product with a high degree of dehydration. -2 or less / / i (L .g.1

Description

The invention relates to the field of separation of suspensions in the field of centrifugal forces and can be used in chemical, food and other industrial fields.

The purpose of the invention is to improve the quality of the separation of suspensions by reducing the moisture content of the solid phase.

FIG. 1 shows a rotor of a vertical centrifuge (cut); in fig. 2 — node I in FIG. one.

The rotor consists of a plate holder 1, a working conical plate 2, an upper reflective conical plate 3 and a lower conical plate 4. The plate holder 1 is mounted on the shaft 5 of the centrifuge. On the working plate 2 there are concentric thresholds 6 and slots 7 between the thresholds dl. removal of the liquid phase. On the bottom plate 4 there is an annular protrusion 8 that abuts against the gripping 9 on the working plate 2. The cavity between the working plate 2 and the lower plate 4. is divided into two chambers by an annular protrusion 8 into two chambers - the sediment {p1duyu A and the separating B. thresholds to the forming of the cone of the working plate 2 are different

On the site

They are 28–32 in the area of the separating chamber B, 18–22 °. The ratio of the distances between the vertices of the thresholds of the drainage and fissile parts is 1.1–1.

The rotor is working in the following 1M manner.

Through the feed pipe, the suspension enters the internal cavity of the plate holder 1 and then to the working one; plate 2. At the tops of the thresholds 6 in the field of centrifugal forces there is a separation of solid particles, and the liquid, bending around the tops of the thresholds; 6, under the action of adhesion forces through the slits 7 enters the bottom plate 4 and is removed from the centrifuge. The solids jump from threshold to threshold, are freed from the liquid phase and are also removed from the centrifuge.

On the section of the working plate 2. of the separating chamber B, the main phase is the separation of the liquid phase from solid particles. A portion of the working plate of the drying chamber A serves for the final dewatering of the suspensions. Due to the fact that the absolute velocities of the fluid of the working section

0 5

0

0

five

0

five

five

rolls 2 of the drying chamber A are larger than the fluid speeds of the section of the separating chamber B for easier and free withdrawal of the liquid phase, the distance between the thresholds 6 and the angles of inclination of the slots 7 between them drying the chamber A and more distances between the thresholds 6 and the angles of inclination the slots 7 of separating chamber B, which contributes to the efficiency of separation and the achievement of the quality of dehydration, while isolating the chambers A. and B prevents the transfer of the liquid phase from chamber B to chamber A.

Isolating the two chambers allows the bulk of the liquid phase, which, according to experimental data, is separated. At the first 2–4 thresholds, to take away from the smaller radius of the working plate (separating chamber B), where correspondingly smaller circumferential speeds of rotation create a quieter and more favorable removal of the liquid veil, as it comes off in this area at a slower rate, which contributes to its lower spraying and filling into the finished product.

The use of the invention improves the quality of the separated solid phase by increasing the degree of its dehydration.

Claims (1)

Formula from rotor rotor is a vertical centrifuge for separating suspensions in a thin film, containing a working conical plate mounted on a shaft with concentric thresholds and gaps between them to drain the liquid phase, the upper conical baffle plate and the lower conical plate forming a cavity with a working plate, This is so that, in order to improve the quality of the solid phase, an annular protrusion is made on the lower plate, which rests against the seal on the working plate and separates the cavity between the working and the lower The paths to the two isolated chambers are separating and reinforcing, with the angles of inclination of the working surfaces of the thresholds to the generator of the working plate cone at the section of the separating chamber equal to 18-22, and at the section of the drying chamber 28-28. the vertices of the drying and separating portions are 1.1-1.2. 0Fig .2