SU1369752A1 - Thin-layer settling tank - Google Patents

Abstract

The invention relates to a wastewater treatment technique and improves the performance and reliability of the installation. A thin-layer settling tank consists of a casing divided into a cleaning zone, a chamber for collecting clarified liquids and a sludge chamber. In the zone of cleaning of the case there is a thin-layer module, the plates (P) of which are made of a film material. The upper and lower ends of the U are bent and welded to the web P, forming channels through which the rods are threaded. The cell radius provides an increase in the Reynolds number and, correspondingly, an increase in the sump capacity. 8 il. c (o ate

Description

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a) brunty refers to the hot water supply and wastewater treatment.

The purpose of the invention is a higher settling capacity.

FIG. 1 shows the proposed settling tank, longitudinal section; in fig. - section aa in figure 1; figure 3 view B in figure 1; FIG. 4 shows a section B-B in FIG. 1 in FIG. 5 — the shape of the rib in FIG. 6 is the node I in FIG. 3; Fig. 7 shows a node connecting a channel channel with a rod; in fig. 8 is a diagram of changing the angle of rotation of the plate with ribs.

The thin-layer settling tank consists of a body 1, divided into a cleaning zone 2, a chamber 3 for collecting clarified liquid with ducts 4 and a branch pipe 5 for withdrawal, a chamber 6 for sediment with a branch pipe 7 for withdrawing sediment. The supply of the source fluid is carried out through the pipe 8.

In the cleaning zone 2 of the housing 1 there is a thin layer module 9, the plates 10 of which are made of a film material.

The upper and lower plates are bent and welded to the plate web, forming channels 11 into which the rods 12 are threaded. There are ribs 13 on the plates 10, made of rigid material, such as fiberglass. The ribs 13 are arranged symmetrically with respect to the plane of the plates, i.e. the slits for the plates are made along the longitudinal axis of the rib.

The upper rods 12 are laid into the grooves of the upper rods 14, rigidly fixed in the upper part of the side walls of the housing 1, the lower rods 12 are located in the oval grooves of the lower rail 15. The ends of the rails 14 and 15 are hinged to the rods 16 and 17, which together with the rod 12 form an articulated parallelogram, with the extreme drafts 17 simultaneously serving as levers for changing the angle of rotation of the plates 10. The ribs 3 located on adjacent rods are installed with a partial overlap of one another and lie flush with one another.

In order to ensure a decrease in hydravlit-iecKor o p; in the width of the cells, the pitch of the ribs must be greater than or equal to the distance between the plates. The width of the ribs 13 is determined from the condition

697522

providing porstst plates for required 1) 1st angle.

The sump works in the following way.

Using t g 17, the required angle of inclination of the plates 10 of module 9 is established. The initial liquid is introduced through the nozzle 8 into the lower part of the housing 1 and enters the cells formed by the plates 10 and ribs 13. The most coarsely dispersed solid particles the lower edges of the clone plates 10 are deposited on the bottom of the lower part, and the fine particles are deposited on the surface of the plates 10 and slide down.

By separating the interplateline of that channel into cells, the number of Re is reduced when the fluid moves in the cell by reducing the hydraulic radius, which makes it possible to increase the velocity of the fluid and, accordingly, increase productivity without breaking the laminar flow of the fluid in the cell. The precipitated sediment is removed through the nozzle 7. The illuminated water is removed from the n box 4 and the nozzle 5 is used for further use.

The presence of the ribs 13 increases the liquid of the film plates and prevents them from bending.

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Thus, the proposed device provides increased reliability and production in thin-layer settling tanks with adjustable plate tilt angle.

Claims (1)

Invention Formula g A thin lagoon, including a housing, input units for the source liquid and output of separated phases, thin layer mode; , 1 in the cylindrical channels of the plates, so that it is, in order to increase the capacity of the settler, it is equipped with a device for changing the angle HaKJioFia of the plates, which are provided with clamps on the rod. 31369752 n x longitudinal stiffeners, a tinny cell channel with a ratio made with slits along their longitudinal axis, with stiffeners attached to adjacent rods x.  R sides yy- 1, where B - step set muddy channel cells with a ratio  R sides yy- 1, where B - step set installed with a partial overlap of each other with the formation in mezhplasFig .G Buds ki edges, And - the width of the interlaminar channel. / J-4 2 about ftsg.Z sixteen / 3 B-b (shaved) at //// Mch. “ H yi4ktg  fcVLCT IS FIG. AT H FIG. five / 2 t with Y / / / ± 1 6 FIG. 7 /five V Fig.8