SU423513A1 - TUBULAR SUPERCENTRIFUGE FOR LIGHTING SUSPENSIONS - Google Patents

Description

one

The invention relates to equipment for the separation of liquid heterogeneous systems with the aid of centrifugal forces, namely, tubular supercentrifuges.

A known tubular ultracentrifuge for clarifying the suspension, comprising a rotor and an impeller mounted therein with a disk for unwinding the suspension.

The aim of the invention is to mechanize the process of unloading sediment from the rotor.

To achieve this goal, a hollow shaft driven in rotation at the time of unloading is installed inside the rotor of the proposed tubular supercentrifuge, equipped with spring-loaded scrapers for unloading sediment, hinged on racks and interacting with the shaft in the process of clarification.

Scrapers can be located above and below the impeller.

FIG. 1 schematically shows the proposed centrifuge, longitudinal section; in fig. 2 is a section along A-A in FIG. one; in fig. 3 and 4 is a section along BB in FIG. 1, at the time of unloading and centrifuging.

The tubing squeeze tube contains a rotor 1 and an impeller 2 mounted therein with a disk 3 for unwinding the slurry. Inside the rotor, a hollow shaft 4 driven by rotation at the time of unloading is installed with radial tubes 5 for supplying fluid and scrapings b for unloading sediment.

The scrapers are located above the disk 3 and the iodine impeller 2, the iodine prului and the springs 7, are hinged on cToiiKax 8 and interact with the shaft 4 in the process of clarification. The scrappers are located on the upper and lower parts 9 and 10 and touch the rotor wall in working zeroing (see Fig. 3).

The impeller 2 is rigidly connected to the disk 3

and the rotor wall 1 in such a way that between

the latter is formed annular gap for

passage of the suspension.

Overcentrifuge works as follows.

The suspension is fed through the hollow shaft 4 and the radial tubes 5 to the inside of the rotor 1, where it is spun by the impeller 2 and acquires an angular velocity equal to the rotational speed

rotor. The leakage through the annular gap between the disk 3 and the rotor 1 wall and then moving to the drain surface, due to inertial forces, the fluid gains an angular velocity greater than the rotor rotation speed, which

leads to increased separation efficiency.

During the centrifuging process, the scrapers are pressed against the shaft and do not touch the liquid layer. The centrate is continuously withdrawn from the rotor.

Before unloading the sediment, the suspension is stopped, the shaft is rotated, causing the scrapers under the action of centrifugal force, overcoming the resistance of the springs, to press the stems: the rotor cages and cut down the sediment formed (see Fig. 3), which is removed along with part fluid through the window 11 at the bottom of the rotor.

Upper hour-ib 9 scrapers 6 serves to unload sediment from the working area of the rotor, and lower part 10 to prevent sediment from clogging the bottom 12 of the rotor.

After unloading the sludge, the shaft stops and the scrapers are returned to their original position by the action of springs (see Fig. 4).

Cycle looping.

Subject invention

1. A super centrifuge tube for clarifying suspensions containing a rotor and an impeller mounted there with a disk for unwinding the suspension, characterized in that, in order to mechanize the process of unloading sediment from the rotor, a hollow shaft is installed inside the latter, equipped with spring-loaded scrapers for unloading sediment, hinged on racks and interacting with the shaft in the process of clarification.

2. Ultra centrifuge for and. 1, I differ Hi; and the fact that the scrapers are located above the disk and iodine impeller.

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