SU93010A1 - Water clarifier - Google Patents

Description

Water clarifiers with a high-altitude and deep discharge of excess sludge, including a working chamber, a sludge separator, pipes with sludge ports, mixing and drainage grids, and a collection chute with openings for water flow, are known.

The proposed clarifier relates to this type of clarifier and is distinguished from them by its structural design.

According to the invention, the working chamber of the clarifier is made annular, and the sludge separator is located in the center; input to the clarifier is carried out by a system of distribution pipes, ending with conical nozzles located along the axis of the working cross-section chamber and giving a circular motion to the water. Such constructive design for clarifiers with significant performance gives a more compact design.

FIG. Figure 1 shows schematically a section through / - / (Fig. 2) of the proposed plan clarifier for water; in fig. 2-section on // - // (Fig. 1) of the same clarifier.

The clarifier is a working chamber / located annularly around the sludge separator 2. The upper part of the working chamber is expanded and has a conical transition to the middle part, while the lower part has a trapepoidal cross-section.

The water to be purified is supplied to the clarifier from the air separator 3, through a vertical pipe 4 passing

one

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through the sludge separator and along distribution pipes 5 with conical nozzles 6 located along the axis of the working chamber, and directed to the lower part of the clarifier. The nozzles 6 give the water a circular rotation along the axis of the lower part of the clarifier.

A coagulum solution is introduced through tube 7, the mixing of which with water takes place all the way from the air separator 3 to the exit nozzles 6.

In the working chamber of the clarifier, vertical pipes 6 are open with openings for draining excess sludge into the sludge separator, from which sludge is continuously removed by blowing through pipe 9 into the well. At the top of the clarifier there is a drainage grate 10 and above it there is a collection chute 11 and discharge of clarified water to the consumer. In the lower part of the clarifier, the mixing grids 13 are located.

In the process of circular movement of water, its mixing will continue, which will contribute to better flocculation. Perforated bulkheads are additionally installed for the same purpose.

Subject invention

A clarifier for water with high and deep discharge of excess sludge, consisting of an air separator, a working chamber, a sludge separator, pipes with openings for sludge removal, mixing and drainage grids and a collection channel with holes for the passage of water, which is The clarifier chamber is arranged around the metal separator “1, located in the center of the clarifier, and the fact that water was introduced into the lighting zone through a system of distribution pipes, terminated by conical nozzles located along the axis of the working chamber and giving De circular motion.

NlliC Invention Bureau