ASTIM A.S.

ASTIM A.S.

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- Automatic Polymer Preperation Plant

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Flocculation is a vital stage in the water treatment, drinking water and wastewater plants. In these processes, polymeric flocculating agents are used to reduce operation costs in coagulation and flocculation systems. Polymer agents, which are long-chain organic molecules, mixed with water are acting like attrahends and produce attraction forces on the suspended solids or sludge particles. These conglomerated flocks ease settling, dewatering or filtering processes. Polymeric agents are also used for other industrial solid-liquid separation applications, such as in chemical industries, petrochemical plants, pulp and paw plants, food industries and others.

ASTİM designs and manufactures automatic palmer preparation and dosing plants which are suitable for above mentioned processes.

ASTiM standardized ready to use APP type chemical preparation and dosing unit is suitable to prepare and meter polymeric flocculation agents and other suitable materials such as hydrated lime, iron sulphate, etc. The unit can also be supplied with large silos and dry material feeding components.

A standard fully automated APP system minimizes operator attention. All operations are performed via a control panel keeping the feeding hopper field with polymer is the only required manual labor for fully automatic continuous operations of the system.

Polymer feeder consists of a hopper and a specially developed metering screw. The outlet nozzle of the feeder is heated electrically to avoid humidity. Disperser cone is the most important component consists of an ejector, which effectively mixes and transports the water polymer mixture into the preparation chamber.

Automatic and easily adjustable water supply device is consisting shut-off valve, solenoid valve, pressure reducing valve, pressure switch and float type flow meter in order to feed the water into the tank, thus allowing to control the concentration of the solution. The preparation chamber is equipped with a mixer and the maturation chamber is equipped with a agitator to provide full activation of polymer concentrate. Optimal mixing and aging time, properly designed gentle mixing and agitating devices provide the necessary conditions to maximize of long chain polymer molecules. These well engineered stages do not only allow maximum usage of polymer concentrate but also reduce operating cost.

  • The standard plant, which is designed for dry polymers, can be easily converted to handle liquid type polymers.
  • The standard plant is capable of preparing solutions with concentrations from 0.05 to 0.5 %. By changing the speed of the metering screw, the feed rate can be easily adjusted. Also by dilution panels requested concentration can be achieved.
  • Optionally the control panel can be equipped with graphic display and PLC to obtain more comfortable operation.
  • The dosing chamber may also be equipped with agitator upon request.
  • Material: AISI304 Stainless Steel.

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