SU1414414A1 - Apparatus for treatment of slime water - Google Patents

Abstract

The invention relates to sludge water treatment devices that simultaneously classify the solid phase, thicken and clarify technical suspensions, and can be used in coal and metallurgical processing plants. The purpose of the invention is to intensify the process of water purification from suspension. In the apparatus, consisting of two coaxially arranged cones, an intensive process of water purification from suspension is carried out by optimizing the hydrodynamics of the flows, concluding in feeding the initial suspension into the inner coke, where large particles are emitted and discharged ratio of height and diameter of the internal Koifyca. The optimal ratio is 3: 2. Coaxially with the slurry supply pipe, there is a flocculating feed pipe, which is made in the shape of a bell with an angle of inclination of the generatrix to the horizontal of 10-15 ° C. and deepening into the inner cone by 2-3 cm. This facilitates the uniform distribution of the flocculant solution in the stream and the intensive process of agitating flocculant, precipitating and discharging small particles of the solid phase from the outer cone. 2 Il. c & (L

Description

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The invention relates to devices for treating slurry waters, in which, at the same time, solid phase classification, thickening and clarification of technical suspensions, mainly suspensions of solid combustible minerals, are carried out, and can be used in the processing plants of the coal and metallurgical industries.

The purpose of the invention is to intensify the process of water purification from suspension by optimizing the flow hydrodynamics. I

Fig. 1 is a schematic representation of the apparatus, a general view; FIG. 2 is a section L-A of FIG. I.

The apparatus consists of a housing 1, a cone 2, installed in it with a base upwards, a feed inlet connection pipe 3 of the initial suspension, coaxially with which is located the feed connection pipe 4 with a socket 5 at the discharge end located below the base of the cone 2 by 2-3 cm and having a tilt angle of the generatrix to the horizontal, is 10-15. The apparatus contains nozzles 6 and 7 dp for unloading coarse material and fine condensed product, respectively, and a drain chute 8 for clarified water. It is advisable to perform a cone 2 with a ratio of its height and base equal to 3: 2.

The device works as follows.

The clarified slurry through the loading nozzle 3 enters a batch of 2, designed to classify the starting material according to a certain size class. Here the suspension is divided into two products; sediment of large particles and discharge of the liquid phase containing a small fraction of the solid phase. All other conditions being equal, the size of the boundary separation grain can be adjusted by changing the ratio of the height and the diameter of the base of the cone 2. Large particles precipitate and thicken in the cone 2, after which they are discharged from the apparatus through the nozzle 6.

The second stream entering the casing 1, in the overflow zone, is mixed with a solution of phpool nta supplied by the n cone through the nozzle 4, located 0

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The co-axially loading nozzle, which ends up with a bell 5, In this zone, optimal hydrodynamic conditions are created for the movement of the clarified pulp with the foam. The flocculated aggregates are transported to a quiet zone of the hull, where they are consolidated, gravitational sedimentation, thickening and unloading of the condensed fine fraction through the nozzle 7.

The clarified water rises up, at the same time cleansing the aggregates, and through the drain chute 8 is almost completely returned to the enrichment process,

The advantage of the proposed apparatus as compared with} is more than B1,1 a high degree of clarification of the initial suspension, due to the rational organization of the hydrodynamics of the flows, which prevent their mixing and erosion of the formed sludge, and feeding the flocculate solution to the zone of the turbulent movement of the initial suspension along g: coaxially with the supply nozzle, terminating in the socket, ensuring uniform distribution and mixing of the flocculant solution flows and the initial suspension. In addition, the apparatus is characterized by the simplicity of its construction and maintenance, the absence of knots arranged for latching.

Claims (1)

Invention Formula The slurry water treatment apparatus, including a body with a cone installed in it, located upside down, a loading nozzle for supplying the suspension and outlet nozzles for the condensed product, characterized in that in order to intensify the process of water purification from suspended matter by optimizing the hydrodynamics of the flows, it is equipped located coaxially to the loading nozzle by a flocculating feed nozzle with a bell at the outlet end located below the base of the cone and having an angle of inclination of the generatrix to the horizontal equal to 10-1 5, while the cone is made with a ratio of its height and base equal to 3: 2. 1 FIG. g