SU598648A1 - Separator - Google Patents

Description

This invention relates to a technique for centrifugal separation of emulsions and suspensions and can be used in the dairy, medical, food and chemical industries. A separator is known, which includes a rotor, an insert package installed inside it, an insert holder with openings for introducing the initial liquid, an output device and a feeding tube 1. A disadvantage of the known separator is the existence of separable phases in the gaps between the countercurrent inserts, which reduces the degree of separation of the treated liquid, worsens indicators of the selected phases. The purpose of the invention is to intensify the separation process and improve the quality of the phases obtained. For this, in the separator, each insert is in plan a ring element having a cut, while the adjacent inserts are joined by the edges of the cuts in such a way that they form at least one screw channel bounded along the edge by partitions installed between the inserts, and the inlet screw channel is aligned with the hole for the input of the original fluid. In addition, the partitions are perforated tapes. FIG. 1 is a diagram of the separator, a longitudinal section; in fig. 2 - a flat annular insert with a cut; in fig. 3 - the same operating condition: in FIG. 4 — node I in FIG. one; in fig. 5 - package with a screw channel. The separator contains a rotor 1, into which the feeding tube 2 is inserted. In the rotor there are inserted inserts 3 assembled into a package, an insert holder 4 with openings 5 for introducing the initial emulsion and a discharge device of separated phases with channels 6 and 7 and chambers 8 and 9, respectively, for heavy and easy phases. For removal of the separated phases from the rotor, pressure disks 10 and 11 are installed. Separate insert 12 is installed between the package of inserts 3 and channel b. Each insert 3 is in plan a ring element (see Fig. 2 and 3), in which the cut 13 forms edges 14. The inserts may be elements with a flat (see FIGS. 2 and 3), conical hyperbolic or spherical surface. The inserts are joined in the package by edges 14 and together with partitions 15 form a screw channel 16. The periphery of the rotor cavity is free from

the package of inserts serves as an accumulation zone of the 17th heavy phase.

The baffles 15 fix the inserts 3 and are tape wrapped in a spiral helix. To obtain two or more channels 16, two or more tapes are used. The fastening of the package of inserts with partitions is shown using a cylindrical holder 18 (see Fig. 4).

The beginning of the channel 16 is aligned with the hole 5 for introducing the initial emulsion of the insert holder 4, and the end of the channel 16 is located under. a separating insert 12 with a light phase at the axis of rotation of the rotor and with a heavy phase at the peripheral part at the partition 15.

To divert to zone 17 the isolated heavy phase along the path of the emulsion, the partitions 15 and the holder 18 have perforations 19 and 20, respectively (see Fig. 4).

To divert the separated light phase along the path of the emulsion along the inner edge, the channel 16 is provided with similar perforated partitions 15.

Making the incision 13 inclined increases the flexibility of the edges 14 of the insert 3 and allows an increase in the elevation angle of the channel 16.

A separator for separating the suspension may have a nozzle discharge of the precipitate.

Works separator as follows. The original emulsion enters the rotating rotor 1 through the supply tube 2 and the passage through the opening 5 of the insert holder 4 enters the screw channel 16. The emulsion moves along it around the axis of the rotating rotor and does not prevent the centrifugal forces of the separated phase from moving away to the partitions 15. In addition, if the direction of rotation of the rotor coincides with the elevation angle of the channel 16, the emulsion flow will move at a speed exceeding the rotor speed, which further increases the efficiency of the separation process.

At the end of the channel, 16 tons of the desired phase flows out into the accumulation zone 17, and the passage over the separation plate 12 through the channels 6 enters the chamber 8, from where the pressure disc 10 leads it out of the rotor.

In the presence of perforations of 19 and 20 tons, the phase is retracted from channel 16 along its entire length as it approaches the partitions 15.

The light phase is guided along channel 7 to chamber 9, from where the pressure disc 11 takes it out of the rotor.

To increase the separator productivity, the separation is carried out in a multichannel package of inserts, where the initial emulsion is distributed to all channels 16 through the corresponding number of holes 5 of the insert holder 4.

Thus, in the separator, the total flow of the liquid to be divided, moving at a speed exceeding the rotor speed, does not prevent the precipitation of the separated phases, which allows to intensify the process of centrifugal separation.

Claims (2)

1. A separator comprising a rotor, an insert package installed inside it, an insert holder with openings for an input liquid source, an output device and a feeding tube, characterized in that, in order to intensify the separation process and improve the quality of the separated phases, each insert is in terms of the annular element having a cut, while adjacent inserts joined by the edges of the cuts in such a way that they form at least one screw channel bounded along the edge by partitions installed between the inserts, with the inlet opening of the screw channel being aligned with the opening for inserting the original fluid. 2. A separator according to claim 1, characterized in that. that the partitions are perforated tapes. Sources of information taken into account in the examination: 1. USSR author's certificate No. 157168, M.C.L.2 В 04 В 7/00, 1963.