SU370974A1 - FILTERING CENTER - Google Patents

Description

one

The invention relates to devices for the direct separation of slurries and the subsequent dewatering of the formed sludge in the coal, chemical, food and other industries.

A known filter centrifuge containing coaxially mounted housing, a centrifugal collector with a lid, a receiving funnel with a feed stream divider located inside it and slopes for tapering and centering the formed streams, the perforated rotor forming the filtering surface of which is made with a smoothly changing curvature, is enclosed in motor casing, ribs rigidly connected with it for unwinding of the source material, cavity for draining dehydrated sludge formed between the casing and the casing motor, and a pendulum centrifugal vibrator disposed above the base of the rotor is rigidly associated therewith and mounted on the lid fugatosbornika.

The proposed filter centrifuge separates materials more efficiently, for example pulp, and dehydrates the resulting precipitate. This is achieved by the fact that the centrifuge is equipped with an additional rotor with a curvilinear generatrix and oppositely directed taper, mounted directly on the shaft of the electric motor, and a centrifugal collector located in the cavity between the surfaces of both rotors. The ribs for unwinding the source material are mounted on the bottom of the additional rotor.

In addition, the centrifuge is equipped with a device for washing the cavity for draining the dehydrated sludge, consisting of a water supply and annular channels with holes. For convenience of operation, a hinge is mounted on the housing to rotate the upper part of the centrifuge and open it.

The drawing shows the proposed centrifuge, a vertical section. It contains coaxially mounted housing

1, the outer fugate-collectors 2 and the inner 3 with a lid 4, a receiving funnel 5 with the source material flow divider 6 placed inside it and slopes 7 for narrowing and centering the formed streams, a perforated rotor 8 forming the surfaces of which is made with a smoothly changing curvature, enclosed in the casing 9 of the electric motor 10 and the additional rotor 11 rigidly connected with it. In addition, the centrifuge

contains a cavity 12 for draining the dehydrated sludge formed between the housing 1 and the casing 9 of the electric motor 10, and an attendant Centrifugal vibrator 13 located above the base of the rotor 8, rigidly connected with it and mounted with the possibility of free rotation on the cover 4 of the fugate collector 2. The forming filter surface of the rotor 11 is provided with a curved and opposite taper. There are ribs on the bottom of the rotor 11

14dl unwinding of the source material. For washing the cavity 12, the centrifuge has a device consisting of a water supply

15 and an annular 16 channels with holes. For convenience of operation on the corrus 1

a hinge 17 is installed to rotate the upper part of the centrifuge and open it.

Channels 18 and 19 serve to drain the centrifuge rotors 11-8, respectively.

The centrifuge works as follows.

Under steady state conditions, the initial pulp, which continuously enters the funnel 5, passes the divider 6 and ramp 7, with two centered symmetric flows enters the inner rotor 11, where it is spun by ribs 14 under the action of the tangential component of the centrifugal field, circular oscillations and geometric head. moves to the discharge lip. As the material advances under the action of centrifugal forces, the liquid phase passes the filtering surface of the rotor 11 and, with the HELP of the internal scavenger, the s3 is directed towards the channel 18, through which it is led outside.

The remaining material flow is emitted into the outer rotor, in which the process of separating the liquid phase continues. In this rotor, the material under the action of the talential component of the centrifugal field and circular oscillations moves to its loading edge. The dehydrated sludge is removed from the centrifuge by the force of the field of gravity through the cavity 12. The centrifuge from the rotor 8 by means of the centrifugal collector 2 is directed to the channel 19, through which it is removed outside.

Item invented

Claims (3)

1. A filter centrifuge containing a KopnyiC coaxially mounted, a fugate collector, a receiving funnel with an input flow divider placed inside it and slopes for tapering and centering the formed streams, a perforated rotor forming the filtering surface of which is filled with a smoothly changing curvature, and the layer of the curd is formed, which forms the filtering surface of which is filled with smoothly changing curvature, and the curtain rotor, forming a filter surface of which rigidly connected to the ribs for unwinding of the source material, a cavity for removal of the dehydrated sludge formed between the casing and the motor casing, and a rotary centrifugal vibrator, located above the rotor base, rigidly connected to it and mounted with the possibility of free rotation on the fugate collector lid, characterized in that, in order to improve the efficiency of material separation, such as pulps, and dewatering the resulting sludge, a centrifuge provided with an additional rotor with a curvilinear generatrix and oppositely directed taper, mounted directly on the shaft of the electric motor, and a fugatoobor.nikom located in the cavity between the surface Article E both rotors 1prichem ribs for disentanglement starting material installed on the bottom of the additional rotor. 2. A centrifuge according to claim 1, characterized in that it is provided with a device for washing the cavity for draining the dried sludge, consisting of a water supply and annular channels with openings. 3. A centrifuge according to claim 1, characterized in that, for ease of operation, a hinge is mounted on the housing to rotate the upper part of the centrifuge and open it. / J 7f