Despite its high efficiency, the hydrodynamic cleaning method on its own is not complete and requires supplementation. Our extensive experience has demonstrated the importance of incorporating an initial pneumatic blow-out step before proceeding with wet cleaning. This pre-cleaning step is crucial for avoiding the formation of sludge within the filter channels, which can create barriers to the flow of rinse water, increasing the risk of micro-cracks in the ceramic core of the DPF filter. Moreover, the hydrodynamic method alone does not fully remove the rinse water before the drying process begins, resulting in prolonged drying times and leaving residual water in the filter channels. This residual water evaporates, leaving behind solid particle residues. Thus, to ensure a more thorough and safer cleaning process, it is essential to complement the hydrodynamic method with additional cleaning techniques.
An effective solution turned out to be complementing the hydrodynamic method with pneumatic cleaning and thermal cleaning.
The 3-stage of cleaning
DPF | FAP | DOC | SCR
DPF | FAP | DOC | SCR
All stages of DPF cleaning in one single unit machine.
Stage 1
TURBO AIR IMPULSE
Stage 2
ACTIVE WATER FLUSH
Stage 3
TERMO AIR IMPULSE
Stage 1 - Pneumatic Cleaning
Our pneumatic cleaning method - Turbo Air Pulse, is the initial stage of the DPF Hybrid cleaning process patented by Otomatic. In this brief preliminary cleaning phase, solid particles in the form of soot and ash that are trapped in the DPF filter are blown out from the filter channels. This step prepares the filter for the main wet cleaning phase - Stage 2.
Stage 2 - Hydrodynamic Cleaning
Thanks to Stage 1, where the DPF filter channels are freed from the excess soot and ash, they are prepared for wet cleaning. In this phase, controlled air pulses improve the efficiency of the water flow, enhancing its ability to remove contaminants by effectively detaching all adhered solid particles from the DPF filter channels and removing them from the filter. These controlled compressed air pulses play a critical role in enhancing the cleaning process.
Stage 3 - Thermal Cleaning
Otomatic has patented a drying technique - Thermo Air Pulse - into the Hybrid DPF cleaning. This method uses intensified hot compressed air pulses to ensure complete moisture removal during the drying phase, effectively eliminating residual water and eliminating the risk of evaporating dirty rinse water inside DPF filter channels. These enhanced hot air pulses differ from conventional compressed air pulses used in the wet cleaning stage, offering superior drying performance.
