SU552112A1 - Centrifuge rotor - Google Patents

Description

one

The invention relates to equipment for the separation of liquid inhomogeneous systems using centrifugal forces, and more specifically to a centrifuge rotor, and can be used in food, chemical, medical and other public services to clarify fruit juices, varnishes and to remove the liquid phase from vegetable and other fats.

A centrifugal rotor is known, comprising a shell, a feed tube, a discharge device and unwinding devices consisting of impellers placed between the disk and ring inserts 1.

However, such a centrifugal rotor is quickly clogged with a heavy fraction in the case of separation of highly concentrated suspensions, which leads to the need for frequent stops for cleaning and to reduce the efficiency of separation of fractions.

In order to increase the separation efficiency, the proposed rotor is equipped with an additional outer shell mounted relative to the inner one to form an annular chamber, and openings are placed on the inner side of the shell, located between the spinning devices.

The drawing schematically shows the proposed centrifuge rotor, a longitudinal section.

The centrifuge rotor includes an inner shell 1, a winding tube 2, a discharge device 3, a narzhean shell 4 and spinning devices made in the form of impellers 5 placed between the disk 6 and the ring 7 inserts.

The outer shell 4 is installed relative to the inner shell 1 with the formation of the chamber 8, while the inner shell 1 has holes 9 located between the spinning devices.

Spreading devices divide the internal cavity of the rotor into chambers 10 and 11. The output device 3 is provided in the rotor cap 12.

A ring 13 is mounted on the outer surface of the inner shell 1 to form a gap 14 between it and the outer shell 4. In the case of separation of a suspension with a fixed sediment, ring 13 can be made so that it overlaps the gap 14.

The rotor of the centrifuge operates as follows.

The separation suspension is fed into the rotating rotor from below through the feed tube 2, while it enters the chamber 10, separated by a disk insert 6. Here the suspension gains a speed equal to the angular velocity of rotation of the rotor and flows from the center

the rotor to the periphery, from where it flows from the outer contour of the annular inserts 7 into the chamber S.

Next, the suspension flows from the periphery of the rotor to the center with an increase in its own angular velocity, “its heavier fraction goes to the surface of the inner shell 1, passes through the holes 9 and enters the annular chamber 8 filled with liquid. the inner edge of the annular insert 7 and falls into the chamber 10.

In the following, the process is repeated.

The clarified liquid is removed from the chamber 11 through the output device 3 to the receiver (not shown) l-; and the centrifuge.

If the heavy fraction is mobile, then it is removed from the annular chamber 8 through the gap 14 and the output device 3, while the centrifugation process is carried out continuously. If the heavy fraction is a stationary precipitate, the separation process is carried out with the ring 13, overlapping the gap 14, until the ring chamber 8 is filled with sediment, after which the rotor stops and is cleaned.

The proposed design makes it possible to increase the efficiency of the separation of suspensions, to exclude the rapid clogging of the rotor with a heavy fraction and frequent stopping of the rotor for cleaning.

Claims (1)

1. Auth. St. No. 380E56, cl. At 04/5/12, 03.05. 71 12