SU874202A1 - Centrifuge for separating suspensions - Google Patents

Description

(54) CENTRIFUGE FOR SEPARATION OF SUSPENSIONS

I

The invention relates to continuously operating centrifuges with inertial discharge of sediment and can be used in the separation of suspensions of pentaerythritol, xylitol, sugar fill fillings, as well as other suspensions in food and chemical technology.

Known centrifuges, the rotor of which consists of disks and blades 1 and 2 fixed between them.

A disadvantage of the known centrifuges is the difficulty of washing the rotor during operation, as well as after a short stop due to the overgrowth of sieves.

The delivery of the washing liquid into the rotating rotor does not give positive results, since at the beginning of the blade the liquid passes through the sieve, therefore, the centrifuge is stopped for washing the rotor and the washing liquid is plentifully fed from the hose, which goes into the discharge, impairing its quality.

The closest of the known centrifuges to the proposed is a centrifuge, comprising a housing with liquid and solid phase receivers, a rotor mounted on a vertical shaft, consisting of discs and blades fixed between them, provided with collectors for supplying the washing liquid, and a chamber for washing liquid 2.

The disadvantage of the known device is that

5 that the chamber for supplying the washing liquid is mounted on the upper rotor disk in the zone of the solid phase receiver, from which it is not protected by anything, and when the washing liquid is fed into the rotating chamber 10 of the RU (liquid ring), splashes and aerosols are formed in it, which are sucked into the solid receiver phase and moisten the latter.

The purpose of the invention is to improve the quality of the solid phase by preventing the washing liquid from spraying it into its receiver.

This goal is achieved by the fact that in a centrifuge containing a housing with receivers of liquid and solid phases, a rotor mounted on a vertical shaft

20 discs and blades fixed between them, fitted with collectors for supplying washing liquid and chamber for washing liquid, are permanently installed under the lower disk of the rotor in the liquid phase receiver, while pipes for supplying the washing liquid connected to the collectors are attached to the lower disk performed in the lower disk .;

FIG. 1 shows schematically a centrifuge for separating suspensions; a vertical section; in fig. 2 shows section A-A in FIG. one; in fig. 3 shows a section BB in FIG. one; in fig. 4 shows a section B-B in FIG. one; in fig. 5 is a section of YYD in FIG. one; in fig. b - section dd in fig. five.

The centrifuge includes a housing 1 with receivers 2 and 3 of liquid and solid phases and a rotor mounted on a vertical shaft consisting of disks 4 and 5 and blades 6 fixed between them and collectors 7 for supplying washing liquid. The blades are equipped with tubes 8, serving to drain the liquid phase to the receiver 2. Under the lower disk 5 of the rotor in the receiver 2 of the liquid phase is fixed; the chamber 9 for the washing liquid, in which the tubes 10 for the supply of the washing liquid are placed, communicating with the collectors 7 using the channels 11 provided in the lower disc. A tube 12 with a valve 13 serves to supply the washing liquid to the cutter 9, and a level meter 14 to control the level of the liquid in the chamber.

The centrifuge works as follows.

The suspension entering the rotating rotor falls on the blades 6, where it is separated into a solid (sediment) and liquid (swell) phases. The sweeps through the tubes 8 and sediment are transferred to the corresponding receivers of the centrifuge housing 1.

To rinse the rotor, when it rotates, a flushing fluid is supplied to the annular chamber 9, which, due to the velocity head through the tubes 10, and the channels 11 enters the collectors 7, from where it passes the blades 6 under pressure through the holes made in the collectors on the screen side. Level gauge 14 serves to regulate the flow of water to the blades during separation or full washing of the rotor, without supplying slurry.

The application of the proposed centrifuge

will allow to get a better product, as well as to increase productivity by reducing the time for stopping and washing the rotor.

Claims (2)

1. USSR author's certificate number 476899, cl. B 04 B 3/00, 1973. 2. The patent of Germany No. 1228199, cl. 82 B-9, published. 1966 (prototype).