SU1360771A1 - Apparatus for separating suspensions - Google Patents

Abstract

The invention relates to a device for the separation of suspensions, namely, the separation of part of the sludge of lime alkaline regeneration from wastewater, can be used in wastewater treatment systems, technological solutions in various industries and allows to intensify the phase separation process. A device for dividing a suspension contains a node for dividing the initial suspension (IC) into separate streams in the form of a sectioned trough with conical or pyramidal days: tsami with branch pipes (OD) in each section, housing with the .MJi input and outlet means located one above others on opposite walls of the casing, collectors with OTBepCTHHt-fli slit, connected by pipe-bottomings with regulating fittings with an OP groove and a cleaned pipeline; The housing is provided with soothing strands arranged in horizontal rows with the formation of slotted channels opposite the inlet and outlet openings of the collectors. 1 il. (Oh from 05 about kj

Description

The invention relates to devices for separating the phases of suspensions, and HixteHHo to separating sludge-calcareous alkali regeneration particles from waste water, shavings and abrasive wear products from used coolant, and can be used in wastewater treatment systems, process solutions and other liquid systems in various areas of prog.

The purpose of the Invention is to intensify: 1 the phase separation process.

The drawing shows a device for separating the phases of a suspension.

A device for separating a suspension comprises a housing 1, collectors 2 of the suspension introduction, collectors 3 of the output

the purified liquid with slit-bore-20 particles is further reduced by

4 and 5, respectively, and calming lattices of plates 6, installed to form slit channels 7 between them. Case 1 is connected via pipelines 8 with regulating fittings 9 to unit 10 for dividing the initial suspension into separate streams and pipelines 11 with regulating fittings 12 - with pipeline 13 of the purified liquid. The node 10 is made in the form of a partitioned chute with a conical or pyramidal bottoms 14 with branch pipes 15 in each section 16.

The device works as follows 1m.

The initial liquidity is supplied to unit 10, where, when moving in a thin layer over 16, gravitational separation of the solid phase and separation of the suspension into separate streams occur, which flow through nozzles 15 into pipelines 8 and further into collectors 2. B. collectors 2 through slotted holes 4 thin slurry streams are formed, which move in the housing along the channels 7 between the grids 6 to the slit openings 5 of the collectors 3 of the liquid outlet 3 From the collectors 3 the liquid is discharged through pipelines 11 to the collector pipeline 13.

In the case of a thin-layer movement of the suspension flows between the –lattices, the particles of the solid phase are separated. Since the largest particles are separated in the upper layer, as they enter the lower layers they collide with smaller particles and particles.

at the same time, lattices 6 reduce their convective mixing of a thin discrete stream of suspension. from collectors 2 to collectors 3. The speed of suspension in thin layers of liquid is regulated by fittings 9 and 12, so that in the lower collector 3 and, consequently, the remaining liquid collectors entered the remaining collectors 3.

Due to the separation of the initial suspension into streams with narrow fractions of particles and the flow of particles with the smallest particles into the lower part of the housing 1, the deposition time of such particles is significantly reduced, which is decisive in the separation of the suspension phases. Time of deposition of small

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by co-precipitating them with large particles entering the lower, thin-layer stream from the upper liquid layers.

Example, A slurry suspension of lime regeneration of alkali in the form of calcium carbonate particles with a particle size of 0.1-1.0 mm in an amount of 33 g / l is fed to a three-section trough, where the suspension is divided into four streams with a predominant (up to 90%) fraction of fractions particles of 0.1-0.25; 0.25-0.5; 0.5-0, 0.75-1.0 mm. Such flows are fed to a settling tank, where through collectors with slotted holes and grids form thin layers of suspension (up to 5 mm) with the suspension with particles of 0.75-1.0 mm in the upper layer, and suspensions with particles of 0.1-0 , 25 mm in the lower layer. With a 95-98% solids separation, a productivity of 20 is achieved.

To estimate the efficiency of the proposed installation, the separation of the similar slag from the lime alkaline regeneration is carried out without splitting the suspension into streams at its upper flow into the casing of the same dimensions. 95-98% solids separation is achieved with a capacity of 8 m / h.

Claims (1)

Thus, the proposed technical solution provides an intensification of the process of separation of carbonate-containing sludge 2.5 times. Invention Formula A device for separating a suspension, comprising a housing with means about entering the initial suspension and removal of the liquid and solid phases, the pipeline of the purified liquid differs from the fact that, in order to intensify the phase separation process, it is equipped with a separation unit of the initial suspension into separate streams, made in the form of a sectioned chute with conical or pyramidal bottoms with branch pipes in each section, the means for introducing and withdrawing the liquid phase are made in the form of 1 x 1x one above the other on the There are 1 wall walls of the collector housing with slit openings mIi, connected through pipelines with regulating valves to the discharge nozzles of the channel and the cleaned liquid pipeline, respectively, the device is equipped with soothing grids installed in the housing in horizontal rows with the formation of slit channels opposite the inlet and outlet openings of collectors. /. .. i texoSHCK t- Ct / CfKHJV t Cleaned, liquid hard dsha Editor P.Gerelpi Compiled by T. Ledneva Tehred M. Morgental Order 6174/9 Circulation 657. Subscription VNISh State Committee of the USSR , for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5 Production and printing company, Uzhgorod, st. Project, 4 Proofreader A.T. sko