SU825168A1 - Filtering centrifugal machine for inertial discharging of deposit - Google Patents

Description

(54) FILTERING CENTRIFUGE WITH INERTIAL LOADING SEDIMENT

but it is high, and the installation inside the rotor of the spherical insert increases its mass, which is especially unacceptable for centrifuges with vibrational discharge of sediment.

The purpose of the invention is to increase the efficiency of dewatering and weight reduction of the rotor.

The goal is achieved by the fact that in a centrifuge, including a conical rotor and an internal device for spinning the incoming suspension, the latter includes evenly placed on the bottom of the rotor blades, having the form of triangular pyramids, one of the side faces of each pyramid located on the side wall of the rotor, second perpendicular to its bottom, and a third is inclined at an angle of angle to the second face.

In addition, the spinning spatula blades can be attached to an interchangeable ring mounted on the bottom of the rotor.

Fig, 1 shows a diagram of the proposed centrifuge; FIG. 2 shows a centrifuge rotor.

The centrifuge includes a frame 1, a rotation drive 2, a filtering conical rotor 3, a feed pipe 4 and a housing 5. A device for spinning the incoming slurry is placed inside the rotor, including blades 6 evenly spaced under the bottom of a three-sided pyramid. One of the faces 7 of each pyramid is located on the wall of the rotor 3, the second face 8 is perpendicular to its bottom, and the third face 9 is inclined at an acute angle to the second face 8,

A replaceable JO ring can be installed on the bottom of the rotor, and the blades 6 of the spinning device in this case are attached to the ring.

The centrifuge works in the following way.

The centrifuged material enters the bottom of the rotor rotor 3 and, falling on the inclined edges of 9 blades of the spinning device, acquires the speed of rotation of the rotor. The passage at high speed along the inclined edges of the 9 blades, the material is thrown onto the surface of the rotor in its narrow part and moves along the latter, subjected to centrifugal filtration.

Receipt of material into the narrow part of the rotor with a sufficiently high speed (dynamic pressure) prevents blocking of the filtering surface of the rotor by sediment, as a result of which the efficiency of dewatering the centrifuged product is increased.

When dewatering materials with

Different friction coefficients for selecting the optimal mode of operation of the centrifuge blades are fixed on the interchangeable ring, and the angle between faces 8 and 9, respectively, is selected.

Experimental studies have shown that under comparable conditions, the rotor of the centrifuge equipped with the proposed blades provides

decrease in sediment moisture by 2-4% compared with the known rotor.

Claims (1)

1. A filtering centrifuge with an inertial discharge of sediment, including a conical rotor and a device for unwinding a suspension, which is located inside it, which is designed to increase the dewatering efficiency and reducing the weight of the rotor, a device for unwinding the incoming suspension includes evenly placed blades on the rotor bottom, having the shape of a triangular pyramid 1D, one of the lateral faces of each pyramid located on the side wall of the rotor, second perpendicular to its bottom, and a third inclined under acute angle to the second facet 2, the centrifuge according to claim 1, characterized in that it is provided with an interchangeable ring mounted on the bottom of the rotor, and the blades are attached to the latter. Sources of information taken into account in the examination 1, Shlau A, B, Zarubin L, S, Trofimov V.A. Filter centrifuges for coal dehydration, M ,, Nedra, 1965, 2, Shpau A.V., Bochkov Yu.N. and others. Filtration and sedimentation filter centrifuges for dehydration coal enrichment products, M., ZNIEIugol, 1979, 3, USSR Author's Certificate No. 358018, Cl, B 04 B 3/06, 1969 (prototype).