SU701715A1 - Multiple hydrocyclone - Google Patents

Description

(54) MULTIGIDROCYCLONE

one

The invention relates to cyclone-type devices for separating suspensions in the field of centrifugal forces and can be used in the chemical, petrochemical, food and other industries.

A hydrocyclone is known that includes a housing with a tangential inlet nozzle, a central drain nozzle and a Sand nozzle immersed in a sand chamber equipped with a thickening adjustment device made in the form of two rotating spring-loaded drums mounted on supports and having grooves on the outer surface 1.

The performance of such a cyclone is small.

The closest in technical essence to the proposed multihydrocyclone, comprising separating elements installed in a common feed chamber, a collector for receiving the clarified fraction and Glesk chamber 2.

However, in this multihydrocyclone, the condensation efficiency is low, which is caused by the lack of means for adjusting the condensation.

The purpose of the invention is to increase the condensation efficiency and productivity.

This is achieved by the fact that in the proposed sandy multi-hydro cyclone, the chamber is equipped with a condensation adjustment device made in the form of a cylindrical rotating on drum supports with alternating section grooves on its outer surface located along the length of the drum in rows, and an separating element is located eccentrically above each groove.

FIG. 1 schematically shows a single separating element, a vertical section; in fig. 2 - section A - A in FIG. one;

Claims (2)

in fig. 3 - multihydrocyclone, general view; in fig. 4 - section B - B in FIG. 3; in fig. 5 shows section B - B in FIG. 3; in fig. 6 a section G - G in FIG. 3; in fig. 7 is a device for adjusting the thickening, a longitudinal section; in fig. 8 - layout of multihydrocyclones with an opposing arrangement of separating elements; in fig. 9 is the same, with a star-shaped or V-shaped arrangement of separating elements. A multi-hydro cyclone consists of single separator cylindrical elements 1 with tangential nozzles 2 for supplying the initial suspension, draining nozzles 1 and 3 fixed in the upper part with the help of caps with nozzles 4, which serve to drain the clarified stream. The cone of the cylindrical conical separating element is tangentially adjacent to the cylinder 5, inside which the cylindrical drum 6 is rotatably mounted, blocking the exit sand hole in the cone of the separating element 1. The cylindrical drum 6 is fixed with the help of needle pins 7 fixed in hollow holders 8 cylinder 5 with nuts 9. The surface of the cylindrical drum is equipped with grooves 10, which serve to unload the thickened solid fraction when the drum 6 is rotated g of its axis under the influence of the pressure of the discharged product. The lower part of the hollow cylinder 5 is equipped with a sand tube 11. The design feature is the possibility of a rational arrangement of the separating elements into blocks. The layout of the separating elements with their opposite, V-shaped or star-shaped arrangement is possible. The basis of all the listed arrangements is the presence in multi-cyclone of all separating elements of a cylindrical rotating on supports, drum 12 placed in a sand chamber 13. Separating elements are installed in a common feed chamber 14, a collector 15 serves to receive the clarified fraction. bearings, made in the form of needle pins 16, with the possibility of its rotation. The gap between the needle pins and the drum is adjusted by a threaded joint 17 to provide the desired speed of rotation of the drum. Multihydrocyclone works as follows. The initial suspension through a tangential nozzle 2 under pressure is fed into the working cavity of a cylindrical separating element 1, where the suspension acquires an intense rotational movement and in the form of a vortex is directed to the top of the conical part. The clarified fraction is discharged upward through the inlet nozzle 3 and nozzle 4. The thickened solid fraction compacted in the cone vertex presses on the eccentrically located drum 6, which begins to rotate in the trunnion 7 and unload the condensed solid fraction condensed in the cone 7, discharged through the sand pipe 11. This allows increasing the degree of condensation of the solid product and eliminating clogging of the Sand pipes. This effect is particularly pronounced when operating on low concentrated suspensions, when, by picking up the shchag between the grooves on the drum, it is possible to provide a pulsating discharge of compacted solid product with a high degree of dehydration. At the same time, the overlapping of the apex of the cone of the separating element 1 by the drum 6 eliminates the formation of an air column in the lower part of the cone, and at the same time the sedimentation of the sediment and the removal of its part with the clarified flow are eliminated. By varying the inlet pressure to the apparatus, as well as the counterpressure in the discharge, it is possible to vary the rotational speed of the drum, and thereby the condensation efficiency. Other parameters for controlling the thickening of the solid fraction are the dimensions of the drum 6 and the shape of its grooves. A multi-hydro cyclone with different arrangement of separating elements in blocks (Fig. 8 and 9) is provided with a cylindrical, rotating on supports, common for all separating elements, a drum 12 with alternating cross-section grooves on its surface located along the length of the drum with rows separating an item. This allows you to smoothly adjust the performance of the concentration of condensation during operation without stopping and disassembling the apparatus. Claims of the Invention A multi-hydro cyclone comprising separating elements installed in a common supply chamber, a collector for receiving the clarified fraction and a sand chamber, characterized in that, in order to increase the condensation efficiency and productivity, the sand chamber is equipped with a condensation adjusting device made in the form of a cylindrical rotating drum supports with grooves of variable cross section on its outer surface located along the length of the drum in rows, with eccentrically located above each groove The separating element is false. Sources of information taken into account in the examination 1. USSR author's certificate in application No. 2423456 / 23-26. 2. USSR author's certificate number 498036, cl. On 04 3/06, 1973. Phage FIG. five FIG. B