Catalogue & Drawing Dimensions

System / Functional Description

The present plant is a preparing and metering station for a 0.5 % flocculant solution.

The plant mainly consists of a three-chamber tank (preparing, ripening and supply chamber) with solvent water station, metering pump, connecting pipe lines, rediluting station and electric switch cabinet. It is suitable for treating dry material.

The corresponding polymere is added manually into the preparing chamber with the help of a dry feeder (pos. 2.0) and a feeding hopper (pos. 2.2). By adding water, the concentration of the parent solution is set to 0.5 %. Depending on the required application concentration, the addable water quantity of the rediluting station can be changed. Normally the concentration of the working solution is 0.1 %.

The product added to the preparing station is dissolved by an electric agitator (pos. 6.0). The prepared solution reaches the ripening chamber through an overflow immersion pipe. This chamber is also fitted with an electric agitator. From the ripening chamber, the solution is forwarded through another overflow immersion pipe into the supply chamber.

The preparing process starts when switching point LSL in the supply chamber (pos. 7.1) is reached and ends when switching point LSH in the supply chamber (pos. 7.0) is exceeded.

The working solution is taken from the tank via a supply line. When exceeding switching point LSLL in the supply chamber (pos. 7.1), the topped eccentric screw pump is ready for operation. This pump is protected against dry operation via switching point LSLL in the supply chamber, i.e.: the pump is stopped when falling below LSLL.