RU39836U1 - HORIZONTAL RESOURCE CAMERA CAMERA - Google Patents

Abstract

The utility model relates to the treatment of natural and wastewater. The flocculation chamber includes a device for introducing source water in the form of a pipeline with pairs of oppositely directed nozzles, a drainage device located above this device in the form of a perforated partition blocking the cross section of the chamber and an opening for draining water. With this design of the chamber, flocculation is intensified, the destruction of flakes is reduced by providing lower speeds for transporting water, the uniformity of water collection in the drainage device is increased, and the volumetric coefficient of use of the chamber is increased, which creates conditions for increasing the degree of clarification of water in the sump.

Description

The utility model relates to the field of purification of natural and wastewater from pollutants, namely to flocculation chambers that are built into horizontal settling tanks.

Such cameras are known, for example, from the book of Nikoladze G.I. The technology of natural water purification, M., 1987, p.120-124; RF patent No. 2038325 V 01 D 21 / 08.1995; RF patent No. 1704389 B 01 D 21/08, 1994.

The closest analogue to the patented camera can be considered the flocculation chamber, given in the book by G. Nikoladze. Technology of purification of natural waters, M., 1987, p.122, fig. 6.2.b. This flocculation chamber is built into the horizontal sump and includes a device for introducing source water with reagents pre-metered into it (coagulants, flocculants), a drainage device located above it and openings for draining water into the sump. The device for inputting the source water is made in the form of parallel water distribution pipes placed at the bottom of the chamber with holes directed to the bottom of the chamber. The drainage device is made in the form of trays for collecting water with side openings or overflow edges in communication with openings of the same section for draining water with flakes of coagulate into a horizontal settling tank.

The required intensity of water mixing is not provided in the chamber of this design, which does not allow coagulation and flocculation processes to be carried out in a mode close to optimal, i.e. get large, well-precipitated coagulate flakes in water. The reason for this is the quenching of the speed of the water leaving the openings of the water distribution pipes upon impact with the bottom of the chamber and turning upwards, and

also, to an even greater extent, the lack of devices for mixing water in the chamber.

The coagulum flakes formed in the chamber are destroyed when water passes through the openings of the drainage trays or when overflows through the edges of the trays, as well as during subsequent flow of water through the trays and through the openings for its discharge into the horizontal sedimentation tank. The reason for the destruction of the flakes is the increased speed of movement of water in comparison with the permissible strength condition of the flakes.

In addition, the collection of water using local devices - trays that do not cover the entire horizontal section of the chamber, reduces the coefficient of volumetric use of the chamber.

The utility model is aimed at creating a flocculation chamber with high efficiency of the flocculation process without increasing its size.

The technical result, which is ensured, is to intensify the mixing of water during flocculation, reduce the destruction of the resulting flakes, increase the uniformity of water collection and increase the volumetric utilization of the chamber.

To achieve this, the device for introducing the source water is made in the form of a pipeline with pairs of oppositely directed nozzles, the drainage device is made in the form of a perforated partition overlapping the cross section of the chamber, and the opening for draining water into the sump is made over the entire width of the flocculation chamber.

Using these nozzles, a rotational-translational movement of water is created with the required mixing intensity, which helps to increase the number of effective collisions of the primary particles and the formation of large coagulate flakes.

Thanks to the specified perforated partition with the holes of the required area located on it, the passage is ensured

water with flakes of coagulate throughout the section of the chamber with non-destructive speed.

The location of the holes over the entire area of the partition increases the coefficient of volumetric use of the camera.

Due to the movement of water with flakes of coagulum to the entrance to the sump along the entire width of the chamber and the opening, in comparison with the prototype, a decrease in the flow rate to a value at which the destruction of the flakes does not occur is achieved.

A utility model is illustrated in the drawing, where in FIG. a horizontal settler with a patented flocculation chamber is shown.

The flocculation chamber is limited by the outer walls 1, bottom 2, coinciding with the bottom of the horizontal settler, and the wall 3, separating the flocculation chamber from the reservoir 4 of the horizontal settler. The flocculation chamber contains a device for introducing source water in the form of a pipe 5 with pairs of oppositely directed nozzles 6 and 7, a drainage device in the form of a perforated partition 8 located above the device for introducing source water, overlapping the cross section of the chamber, and an opening 9 for draining water. The partition 8 overlaps the corridor of the chamber between the walls 1 and wall 3.

The source water, into which the reagents were previously introduced, is supplied to the flocculation chamber through line 5, flows in opposite directions from nozzles 6 and 7, and rotationally moves towards the perforated baffle 8. Effective mixing intensifies the formation of coagulate flakes.

Water with flakes passes through openings distributed over the partition 8, which increases the coefficient of volumetric use of the flocculation chamber.

Water moves through the holes in the partition 8, in the space above this partition and in the opening 9 with speeds, approximately

exceeding 0.05-0.1 m / s, which ensures minimal destruction of coagulate flakes.

Thus, a flocculation chamber has been developed in which, due to structural changes, the flocculation process is intensified, the destruction of coagulum flakes is reduced, the coefficient of volumetric use of the flocculation chamber is increased, due to which the coagulum floc size increases and the degree of clarification of water in the sump increases.

Claims (1)

The flocculation chamber of the horizontal settler, including a device for introducing source water, a drainage device located above it and an opening for draining water, characterized in that the device for introducing source water is made in the form of a pipeline with pairs of oppositely directed nozzles, and the drainage device is made in the form of a perforated partition overlapping the cross section of the camera.