SU1209251A1 - Apparatus for clarifying liquid - Google Patents

Description

The invention relates to clarifiers and can be used for the purification of natural and waste waters, as well as technological solutions from suspended substances in non-ferrous, ferrous metallurgy, mining and chemical industries.

The purpose of the invention is to increase the cleaning efficiency and performance of the device.

The drawing shows a device for clarifying a liquid, a general view.

The device consists of a cylindrical body 1 with a cone-shaped bottom 2. In the case 1, inner 3 and outer 4 coaxial partitions are installed to form precipitation chambers 5 and 6. The supply pipe 7 is located in the inner chamber 5 at a distance from its bottom. The inner settling chamber 5 is divided in height by conical perforated partitions 8 and is provided in the upper part with overflow openings 9 for supplying fluid to the external settling chamber formed by the partition 4 in the form of a truncated cone, the lower end of which is set at a distance from the bottom 2. On the power supply In the pipe 7, there is a circulation pipe 10 for feeding non-flocculated fine sediment, the lower end connected to the outlet pipe of the bottom 2 by means of the device 11. Below pipe 10 on the feed pipe oprovode 7 ras0

put the pipe 12 to supply the cleaned fluid. In the upper part of the body, an overflow threshold with a nozzle 13 for the clarified liquid outlet is installed. In the lower part of the internal settling chamber 5 there is a nozzle 14 with a device 15 for periodically carrying out a compacted sludge.

The proposed device works as follows.

The liquid to be cleaned flows through the pipe 12 into the feed line 7 and is fed to the lower part of the internal deposition chamber 5. Non-flocculated fine particles, lifted by fluid flow into the upper part of the inner chamber 5, are retained by perforated conical partition 8 and are deposited in the lower part of the inner sedimentation chamber, where they are periodically discharged by the device 15. Partially clarified liquid through the opening 9 enters the upper outer part deposition chamber 6 and is supplied to the lower part of the housing 1, the flow rate of the liquid in which is incommensurable less than in the upper part of the outer deposition chamber 6. Residual solids

collected in a cone-shaped bottom 2 of the housing 1 and the device 11 (pump, airlift, ejector) are fed into the supply pipe 7 through the pipe 10, where they are in contact with fine particles of the liquid to be purified, flocculated and precipitated according to the described principle. The clarified liquid is discharged through the pipe 13.

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Claims (1)

DEVICE FOR LIGHTING LIQUID, containing a cylindrical body with a conical bottom, coaxially mounted in the body of the partition with the formation of precipitation chambers, a supply pipe located in the inner chamber, the supply pipes Filling / precipitation of clarified liquid and withdrawal of clarified liquid and sediment, a circulation pipe connected to the bottom outlet pipe by the lower end, while the lower ends of the supply pipe and the external partition are installed at a distance respectively from the bottom of the inner chamber and the bottom of the housing, characterized in that, in order to improve the cleaning efficiency and productivity of the device, it is equipped with perforated conical partitions located in the inner chamber, made with overflow holes in its ve of the upper part, the outer partition is made in the form of a truncated cone, the circulation pipe is connected by its upper end to the supply pipe above the branch pipe for supplying the liquid to be cleaned, while “the inner chamber is connected to the sediment outlet pipe equipped with a device for periodic discharge of sediment. SU „..1209251 ί