SU1230697A1 - Rotor of centrifugal separator - Google Patents

Description

The invention relates to centrifugal separator designs, namely, rotors of centrifugal separators, and can be used in the chemical, hydrometallurgical, food, dairy and other industries.

The aim of the invention is to improve the quality of the separation.

FIG. 1 shows a rotor of a centrifugal separator, a longitudinal section; in fig. 2 conic plate, general view; in fig. 3 - the same, top view; in fig. 4 - section of a conical plate; FIGS. 5 to 7 are embodiments of the corrugations.

The rotor of the centrifugal separator includes a housing 1, a plate holder

2, a package of conical plates 3 with radially arranged strips 4 and channels 5 for discharging the clarified liquid; devices 6 and 7 for supplying slurry and discharging the clarified liquid — sludge 8 and sludge space

9. The peripheral part of each plate 3 has corrugations 10, the crests 11 of which are located on its inner side, the strips 4 are located on the ridges 11 of the corrugations 10, and the channels 5 for draining the clarified liquid are formed by holes 12 made The ridge x 11 is corrugated 10, and the fins 13 are installed in the channels 5. To prevent the liquid from lagging behind the rotor, and in the lower part of the housing 1. a cavity 14 is made, connecting with the channels 5 through the holes 15.

The rotor of the centrifugal separator operates as follows.

The suspension is fed into the rotating rotor (drive not shown) from above on the device 6 and enters the inter-plate gaps of the package of conic containers: lok

3. The suspension flow moves to the periphery of the plates. Under the action of centrifugal force, particles of the solid phase precipitate out of the flow onto the inner conical surface of the plate 3, and the resulting precipitate slides along the plate 3 into the slurry space 9. From the slurry space 9, the solid phase is removed from the rotor through the device 6. The clarified liquid through the channels 5 through holes 15 enters cavity 14 and retracts through device 7.

In the gap between the corrugations, undegraded particles under the action of centrifugal force are deposited on the surface of the corrugations 10. One of the components of the centrifugal force acts radially and is directed to the periphery of the plate 3. The second component acts in the circumferential direction and is directed to the base of the corrugations. The resultant of these forces P (Fig. 3) provides the sediment movement along the surface of the corrugations 10 to their base and to the periphery of the conical plates 3, and then into the sludge space 9.

The implementation of the corrugations 10 on the peripheral part of the conical plates 3 and the strips 4 located on the ridge II of the corrugations 10 makes it possible to make a smooth transition from fluid slipping to radial flow. The arrangement of the channels 5 formed by the holes 12 in the ridge 11 of the corrugations 10 makes it possible to dissolve the streams of clarified liquid and sediment in different planes and eliminate the intersection of the separated streams, and the ribs 13 installed in the channels 5 prevent the liquid from lagging behind the rotor and mixing, thus separated phases. Due to these factors, secondary entrainment is reduced and the quality of separation is improved.

FIG. 2

12

fie.Z

fieL

eleven

FIG. five

phases.6

Compiled by V. Ovcharov Editor N, Gorvat Tehred L. Serdyukova Proofreader M, Samborska

2477/12

Circulation 517Subscribe

VNIIPI USSR State Committee

for inventions and discoveries 1) 3035, Moscow, F - 35, Raushsk nab., 4/5

Production and printing company, Uzhgorod, st. Project, 4

(rig. 7

Claims (1)

CENTRIFUGAL SEPARATOR ROTOR, comprising a housing, a package of conical plates with radially spaced bars and channels for draining clarified liquid, devices for supplying a suspension and draining clarified liquid and sediment, characterized in that, in order to improve the quality of separation, the peripheral part of each plates has corrugations, the crests of which are located on its inner side, while the straps are located on the crests of the corrugations, and the channels for draining the clarified liquid are formed by holes made on the crests of the corrugations, and in The ribs are installed in the channels to prevent fluid lag from the rotor. / TWrrr’TiS Figure 1