The ASC-150 is OFRU's most successful solvent recovery unit from the ASC professional series. The solvent recovery unit has a modern integrated steam heating system.
A special feature in the solvent recovery unit ASC-150 is the conical stainless steel distillation vessel, in which the shell surface is heated with steam . The heating steam in the double jacket transfers the heat extremely quickly to the solvent. At the same time, high distillation performance is achieved with a small boiler volume.
The solvent recovery unit has a clever design. Only one electrical connection is required for the integrated steam heating. A high performance liquid ring vacuum pump conveys the dirt into the solvent recovery unit and guarantees continuous 24 hour operation. During automatic distillation in the solvent recovery unit, the evaporated amount of solvent is automatically replenished by the addition of dirt. This automatic mode can be set by timer.
If the dirt tank of the customer contains no more solvent, the solvent recovery unit receives a signal and automatically switches to "sump distillation". The continuous filling is stopped for the solvent recovery unit and the amount of solvent still present in the solvent recovery unit boiler is evaporated until the dirt becomes a thick concentrate. The solvent recovery unit then switches off and is ready for manual or fully automatic emptying.
The distilled or purified solvent flows continuously from the solvent recovery unit into the customer's on-site tank.
A further feature of the ASC solvent recovery unit is a slow-running scraper agitator with automatically adjusting scrapers made of PTFE. This unique doctor blade system has been further developed over 30 years and is now used in the solvent recovery unit for its robustness and cleaning efficiency. Two strong scrapers made of PTFE optimally clean the conical solvent recovery unit vessel and do not have to be readjusted.
The doctor blades clean the solvent recovery unit boiler wall over the entire filling area and not only at the boiler bottom like other machines.
The contact pressure on the steep walls is optimal and large enough to prevent the build-up of deposits.
The entire solvent recovery unit process is controlled by a SIEMENS SPS S7 1200. If the local requirements of the customer change due to tanks, pumps or processes, the Siemens control system can be reprogrammed at any time and adapted to customer requirements. And this in national language bps. Chinese, Russian etc.! The OFRU solvent recovery unit is multi-language ready.
The viscous residues are emptied by gravity in the solvent recovery unit via a slide valve at the lowest point of the conically round boiler. The solvent recovery unit can then be automatically refilled with contaminated solvent. A new continuous treatment process begins.
|Technical data||ASC-150 24 kW kW with vacuum|
|Boiler Vessel volume||160 l|
|Constant filling volume, level controlled||~ 100 l|
|Distillation capacity approx.||40-90 l/hr*|
|Heating up time approx.||0.5 hr*|
|Heating temperature||Max. 180 °C|
|Vacuum abs.||max. 50 mbar|
|Voltage||380-410 V / 50 Hz / 3 Ph + N|
|Power consumption steam heating||24 kW|
|Power consumption vacuum unit||1,1 kW|
|Compressed air consumption approx.||6 bar, max. 50 l/min.|
|Useful cooling capacity requirement approx.||20 kW|
|Cooling water consumption (8-12° C) approx.||1.5 m³/hr|
|Width x depth x height approx.||1.50 x 1.05 x 2.65 (always depending on configuration and changes)|
|Weight approx.||~ 950 kg|
*Notes for the solvent recovery unit: Depending on type and composition of solvent, type and proportion of contamination, heating temperature, vacuum, cooling water pressure and temperature, boiling behaviour.
**Accompanying depot agent according to Directive 2014/34/EU
Typical distillation performance of the solvent recovery unit ASC-150, after practical experience:
Ethanol / Ethyl acetate in flexo printing: Approx. 45-55 litres / hour. When using the solvent recovery unit with nitrocellulose containing solvents or inks, for safety reasons heating is only carried out at max. 105 °C.
Solvent in printing plate production: Approx. 60 litres / hour
Paint, varnish, color and coating industry: Approx. 50-90 litres / hour.