Thikeners

Compact Thickener is intended for thickening suspensions of concentrating mills in chemical industry with content of solid material 15-35 g/l in order to obtain filtered mother solution and its separation from thickened slurry.

The thickener is complete with deaeration reservoir where functions of deaeration of fed pulp, its contacting and mixing with flocculant are performed simultaneously. Algorithm of flocculant flow rate control is realized by content of solid component in thickener. In the thickener pulp is supplied directly to thickening zone under layer of flocculated solid particles that provides drain filtration and additional flocculation. Realized technical solutions provide high flow capacity per unit of area.

The thickener is equipped with central drive of agitator on which “turners” are mounted to efficiently remove liquid phase and air out of solidified sediment.

Algorithm of sediment discharge from the thickener provides retention of required layer of solidified sediment in the unit, steady and high density with continuous discharge. The thickener is provided with system of foam removal off its surface.

The thickener is fit to be run in the open air in macroclimatic regions with moderate climate.

Compact high- throughput thickener has been designed on the basis of long-term study of the process of clarifying return lye and thickening clay-salt slurry of selwynite ores. Overall thickener dimensions provide optimal conditions for slurry compaction and sufficient zone of clarified layer at the same time.

The thickener can be used for concentration of ores and minerals, and purification of sewage waters.

The thickener operation is based on the principle of sedimentation of solid substance particles suspended in liquids under gravity forces impact.

THE SYSTEM OF THICKENER CONTROL IS DESIGNED FOR CONTROL OF PURIFICATION OF SATURATED SALT SOLUTIONS THAT ARE RETURNED INTO TECHNOLOGICAL PROCESS FOR FURTHER USE AND COMPRISES:

  • electromagnetic systems for measurement of flow rate of initial mother water, flocculant and discharge product arranged on relevant pipelines;
  • probes of top and bottom levels of product in the thickener with proper instrumentation on each site;
  • inductive sensor mounted on agitator electric motor;
  • thermistors built-in electric motors of agitator and pumps’ drives;
  • pneumatic servo drives ganged up with ball valves correspondingly;
  • acoustic radiators, luminaries;
  • control cabinet.

In their chemical protection modern materials used in thickener bowl manufacture allow to use the assembly for clarifying and thickening of hot pulps with temperature up to 105 0C.

COMPACT THICKENER CAN BE USED FOR WIDE RANGE OF MATERIALS IN VARIOUS BRANCHES OF INDUCTRY:

Concentration of minerals

Material

Field of application

Gold

Silver

Platinum group metals

Diamonds

Base metals

Copper

Iron

Coal

Nickel

Mineral sands

Uranium

Aluminum/bauxite

Crushing

Leaching

Concentrates

Mill tailings

Countercurrent decantation (CCD)

Paste-like backfill

Clarifying

HDS (high-density suspension)

Water purification

Treatment of sewage waters

Desalination plants

Water purification

Chemical industry / Industrial production

Oil refineries

Metallurgy works

Cement industry

 

ADVANTAGES OF COMPACT HIGH-THROUGHPUT THICKENER:

1.      High specific output. In its output ten meter thickener equals P-30 unit (for clay-salt slurries);

2.      High density of thickened slurry;

3.      Scraper provides additional dehydration in thickening zone;

4.      Possibility to adjust and maintain clarified layer and complete automation of the operation mode;

5.      Small area of production premises.

 

TECHNICAL CHARACTERISTIC OF THICKENER:

Name of parameter

Value

Inside diameter of cylindrical section, m

10

Nominal precipitation area, m2

78.5

Working volume, m3

300

Overall dimensions (including maintenance area), m

-length

- width

-height

 

12.870

10.484

9.554

Thickener mass, t

40.1

“KEYTRADE” Ltd.

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Minsk, 220116, Republic of Belarus

Phone: (+375 17) 224-03-01

Fax: (+375 17) 224-52-96

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