Sludge Conditioning - SLCO Brief Process Description
seepex offers a solution tailored for processing sewage sludge and pumping highly dewatered sludge from centrifuges or belt filter presses.
With this method, the dewatered sludge from the dewatering machine is directly routed into the feed hopper of the seepex pump of the BTI series. At the same time, lime is dosed into the pump hopper via an adjustable screw dosing system and mixed into the sludge by the paddle shaft of the integral bridge breaker.
The multi-staged pump then delivers the conditioned sludge to the container, hopper or storage location.
To ensure an efficient and trouble-free operation of the overall plant, important process factors must be monitored and controlled, and fault messages must be evaluated. The seepex SLCO control system was developed for this purpose. The SLCO control system has been implemented based on a PLC (programmable logic controller) combined with a visualization system and comprises the following functions.
Visualization of the process
Control and monitoring of the sludge level in the pump hopper
Lime dosing proportionally to the sludge rate
Temperature monitoring of the stator (dry running protection device TSE) and the pressure pipe (increase in temperature due to exothermic reaction of the sludge)
Overpressure protection of the piping
Pressure-dependent boundary-layer injection into the piping (optional)
Technical Data
Network-compatible panel with 5.7“ monochrome LC graphics display with integrated CPU
700 kB SRAM, 1.4 MB FlashPROM
PCMCIA slot
CAN interface
6 slots for customisation modules Protection class: Front IP65
