SU1227250A1 - Centrifuge - Google Patents

Description

The invention relates to devices for the separation of slurries in the field of centrifugal forces, namely, to blade centrifugal filter centrifuges Ms and can be used in chemical, food, medical and other industries.

The purpose of the invention is to increase productivity.

Fig, 1 shows a centrifuge (vertical section); in Fig.2 a section aa in Fig.1.

The centrifuge contains a rotor 1 with a lid 2 and a bottom 3 and has an oyno 4 for supplying the slurry and apertures 5 for withdrawing sludge, a feeding device 6 and a blade 7, each of which includes a housing 8 and sieves 9 and 10. Sieve 9 and 10 form with cavities 11 and 12 for collecting the filtrate, in which in the bottom 3 of the rotor 1 are placed nozzles 13 for draining the filtrate. The sieve 10 has a non-perforated portion 14 at its peripheral end. The housing 8 of each blade in its upper part has an opening 15 for equalizing the pressure in cavities 11 and 12. The blades 7 in the rotor 1 are arranged in such a way that the sieves next to each other form blades pressure filtering channels 16, the cross section of which is proportional to the flow rate of the liquid phase, is installed in the slurry section.

The centrifuge works as follows.

The initial suspension under pressure through the feeding device 6 is supplied to the rotor 1 and then through the windows 4 to the pressure filtering channels 16, where under the action of centrifugal forces it separates into a liquid, phase and sediment. In the pressure filtering channels 16, larger particles by centrifugal forces transfer the sieves 9, and the smaller particles form a moving Hbi | i layer, which plays the role of a filter. Since the cross section of the filtering channels 6 is made tapering as it moves away from the axis of rotation of the rotor, the flow rate in channel 16

kept constant, which increases centrifuge performance.

The liquid phase (filtrate) through sieves 9 and 10 enters the cavities 11 and 12

the blades 7 and through the pipes 13 are removed from the rotor into the collection 17 of the filtrate and further along the pipe 18 is removed from the centrifuge. The precipitate is moved along pressure filtering channels.

16 and through the openings 5 is withdrawn into the annular chamber 19 and further removed from the centrifuge.

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VNIIPI Order 2240/7 Circulation 517

Random polygons pr-tie, Uzhgorod, st. Project, 4

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Claims (2)

1. CENTRIFUGA, containing a rotor with a bottom and a cover, blades placed between them, each of which consists of a housing and two screens, a feeding device, windows For feeding slurry and holes for removing sediment, characterized in that, in order to increase productivity, screens each blade is located on both sides of the housing with the formation of cavities, and each subsequent sieve after the housing at the periphery has an unperforated section, and windows for feeding the suspension and holes for withdrawing sludge are placed between, the sieves are located nearby x blades. 2. Centrifuge pop. Source product Sediment FIG. 1 SU .. „1227250