The filtrate reclaim water system is formed by 1 filtrate water tank, 1 agitator, 2 filtrate water pump
(one for use and one for standby) and relevant pipes, valves and instruments.
In normal situation, one pump operates and the other is for standby. When the water pump outlet pressure is 3.2-4.4bar, pressure can be adjusted with adjust valve and by opening and closing of check valve. The pressure transmitter is installed on the main pipe of the 2 pumps. The reclaim water is respectively returned to #3, #4 absorber based on the liquid level of #3 or #4 absorber.
The reclaim water of the filtrate water tank is from the belt consumed water such as filtrate by descending pipe of filtrate receiving tank in 2 sets of vacuum belt conveyor and filtrate cloth wash water, waste water hydrocyclone underflow, gypsum overflow tank overflow and process water system.
The filtrate water tank has one agitator, 1,500mm automatically startup and 1,000mm pauses for protection. In normal situation, it operates continuously to keep slurry in non-deposit status. On top of the filtrate water tank one radar liquid level meter is installed, which can be shown or participate in interlock control.
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