SU887000A1 - Hydraulic cyclone for cleaning sewage - Google Patents

Description

a branch pipe for removal of trapped particles of dirt, a filter element placed inside the drain chamber, a filtrate collection chamber with a branch pipe for filtrate drain 3.

A disadvantage of the known hydrocyclone is the possibility of blocking the filter element with impurities.

The purpose of the invention is to increase the cleaning efficiency by preventing the ingress of soil particles into the filtrate.

The goal is achieved by the fact that in a hydrocyclone containing a cylindrical housing with a lid, a tangential inlet nozzle, a slime nozzle and a drain nozzle, to which is attached a drain chamber with a bottom inclined to the nozzle for collecting the trapped particles, the filter element located inside the drain chamber; . Choosing a filtrate with a filtrate outlet, it is equipped with a truncated cone guide, the larger base of which is attached to the lid of the drain chamber, and the filter element is designed as perforated discs with streaming fins, one above the other; the smaller base of the cone is attached to the edges of the filter element placed on the drain pipe, and the filtrate collection chamber is installed between the filter element and the hydrocyclone cover.

FIG. 1 shows a general view of a hydrocyclone; in fig. 2 shows section A-A in FIG. one.

The hydrocyclone for wastewater treatment contains a cylindrical housing 1, a tangential inlet and slurry nozzle 2 and 3, a drain chamber 4 with nozzles for draining filtrate 5 and a thickened fraction 6, a drain nozzle 7 inserted into the cavity of a truncated cone 8 fixed with a large base to the lid 9 of the discharge chamber 4. The guide truncated cone 8, with a smaller base, rests on the guide ribs 10 of the filter element 11. The filter element 11, to prevent axial movement, is fixed to the drain pipe ku 7, for example, expansion bolts. The inner cavity of the cylinder 12, the lid of the hydrocyclone body 13 and the filter element I form a collection chamber of filtrate 14, and outside a circular receiver 15 bounded by the inner surface of the discharge chamber 4 and its bottom, which has a slope along the perimeter in the direction of the branch pipe of the thickened fraction 6.

Hydrocyclone works as follows.

Heavy solids under the action of centrifugal forces, displaced to the periphery, descend along the wall of the hydrocyclone and are discharged through the sludge inlet 3. The clarified waste liquid containing lighter coarse-dispersed impurities enters the truncated cone 8, where energy quenching and spouting occurs through the smaller base of the cone at the mouth of the guides. the fins 10 of the filter element 11, and, filtered sequentially through the perforated corridors of the filter elements into the chamber of the filtrate 14, is discharged through the pipe 5. The thickened fraction from the surface of the filter elements, due to high yield, shifted to the periphery,

falls into the circular receiver 15 and is discharged through the branch pipe of the condensed fraction 6.

The use of the invention will allow the use of a hydrocyclone for the purification of multiphase liquids containing coarsely dispersed impurities, differing in specific gravity both on a large and a smaller side of the specific gravity of the processed liquid. Compared with

The prototype of the proposed hydrocyclone has the following advantages: the possibility of obtaining the required degree of purification by selecting a filter element; the condensed fraction does not change the living section of the drain pipe and does not affect the mode of operation of the hydrocyclone; the filtering element works in the free-flow mode, which does not lead to its intensive clogging.

Claims (3)

Invention Formula Hydrocyclone for wastewater treatment, containing cylindrical housing with lid, tangential inlet nozzle, sludge nozzle and drain a branch pipe to which a drain chamber is attached with a lid and a bottom inclined to the branch pipe for removal of trapped dirt particles, a filter element located inside the drain chamber, a filtrate collection chamber with a filtrate branch pipe, characterized in that in order to increase the cleaning efficiency by preventing particles from entering contaminant into the filtrate, it is equipped with a truncated cone guide, the larger base of which is attached to the lid of the drain chamber, and the filter element is designed as one located above one another them with perforated discs struenapravl yuod, their edges, with the smaller base of the cone is attached to the edges of the filter element, razmep1ennogo on the spout, and the filtrate collecting chamber is installed between the filter element and the lid of the hydrocyclone body. Sources of information taken into account in the examination 1. USSR author's certificate No. 528122, cl. In 04C 5/13, 1976. 2. Copyright certificate № 657857, cl. In 04C 9/00, 1977. USSR the USSR 3. Copyright certificate № 578112, cl. In 04C 5/103, 1976.  78 to It f, JW .... LJL. I j / FIG. 2 7 13 FIG. 2