SU785217A1 - Open hydrocyclon-settler - Google Patents

Description

(54) OPEN HYDROCYCLONE SUCTION

one

The invention relates to structures for mechanical treatment of wastewater in industrial plants.

An open hydrocyclone-settler is known, which consists of a cylindrical, passing in the lower part into a cone, a casing and two coaxially mounted overhangs, the second partition from the center having an expanding socket in the lower part. In the annular zone formed by these partitions, tangential supply of effluent is carried out. Rotating in this zone of centrifugal clarification, the wastewater is dipped down and, next, forms an expanding bell; , enter the second zone, the zone of gravitational clarification, where their movement takes a vertical direction upwards, to the annular periphery tray for collecting the clarified waters. Removal of clarified water from the settling tank is carried out by gravity mode l.

The well-known hydrocyclone-sump performs only one wastewater treatment function. To supply clarified effluents for further use, as a rule, you need ..i.Vt

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MO construction of a clarified water reservoir and a separate costly station. In addition, for large sizes of the settler-hydrocyclone, the presence of only a peripheral tray for collecting the purified water can lead to the formation of dead zones in the upper part of the gravitational chamber.

0 clarification at the socket part.

 The aim of the invention is to increase the efficiency of the use of the sump by combining the technological operations of settling and pumping water in one device.

This goal is achieved by the fact that the settling tank is equipped with radial overlaps installed with a stop at the bottom, placed between them on pine aggregates and additional catchment chambers located above the partitions, connected

Claims (1)

25 between each other and with a peripheral tray. FIG. 1 shows the plan of the underground part of the structure; in fig. 2 vertical section of the device. The open hydrocyclone-settling tank has a cylindrical body 1 with a conical sludge accumulation zone 2 and a peripheral tray 3 for the flow of clarified water, a central shaft 4, a zone 5 of centrifugal clarification formed by the wall 6 of the central shaft and a cylindrical partition 7 with an expanding nozzle 8 in the bottom, which forms with the cylindrical body the zone 9 of gravitational clarification. In the centrifugal clarification zone there is a built-in tangential ± 10 pipe clearing. 16. The walls of the compartment on the side of the zone of gravitational clarification are equipped with additional radial trays 17 mounted at the level of the peripheral tray and interconnecting with each other and the ring tray. 18, placed on a cylindrical bell-shaped partition, and a peripheral catchment tray 3. For drainage from the trays, holes 19 are provided in its walls. The device operates as follows. During the operation of the sump, the wastewater to be cleaned is supplied via a tangential pipeline 10 to the zone 5 of the centrifugal clarification, passes the first purification stage, descends and passes the gravitational clarification zone 9 into the second zone under the expanding pipe. In this zone, the water rises up is lightened and flows into the peripheral tray 3, into additional trays 17 installed on the radial partitions and into the tray 18 connecting them. From the trays, the basted water flows into the compartment 14, from which is supplied by pumps 15 for reuse or, if necessary, for additional processing. As a result of combining water settling and pumping processes in one device, there is no need to build a separate pumping station with water tanks. This provides significant savings in capital and operating costs, and allows for improvements, reductions and more reliable technological systems for the working cycle. The device on radial partitions of additional drainage chutes, interconnected by an annular chute located on the outside of the socket part, and with a peripheral chute, makes it possible to create a closed contour of the chutes along the entire perimeter of the gravitational zone of clarification. As a result, dead zones (stagnant zones) in the structure are eliminated, which makes it possible to increase the use of the volume of the gravitational zone of lightning and increase the cleaning effect. In addition, an increase in the length of the catchment trays in the sump leads to a decrease in the rate of overflow of clarified effluents from the zone of gravitational clarification into the trays, and, consequently, to a decrease in the possibility of removal of the smallest suspended impurities from the sump. Claims of the invention Open hydrocyclone-settling tank, containing a cylindrical case with a conical bottom, annular partitions coaxially placed relative to the case, a tangential nozzle for supplying clarified water and a peripheral drainage tray, in order to increase the efficiency of use by combining technological operations in one device upholding and pumping, it is equipped with radial partitions installed with a stop in the bottom, placed between the NIMI pumping units and additionally disposed above the partitions catchment troughs, soedinennyyy each other and with peripheral tray. Sources of information taken into account in the examination 1. USSR author's certificate in accordance with the application 2533100, class C 02 C 1/26, 1977 (prototype). 7 f: J 12 TO P