Distillation Unit ASC-500 37 kW
Functional description of the solvent distillation units
The ASC-500 37 kW is an extremely comfortable vacuum distillation unit from the professional ASC series. It has a modern integrated steam heating.
Heating of solvent distillation units ASC-500
A special feature of the distillation units is the conical stainless steel distillation vessel or boiler, in which the shell surface is heated with steam. The distillation units 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 distillation units have a clever design. Only one electrical connection is required for the integrated steam heating of the distillation units. A high performance liquid ring vacuum pump conveys the dirt into the distillation units and guarantees continuous 24 hour operation. During automatic distillation in the unit, the evaporated amount of solvent is automatically replenished by the addition of dirt into the distillation unit. This automatic continuous distillation mode can be set by timer.
Distillation units safety function:
If the dirt tank of the customer contains no more solvent, the distillation units receive a signal and automatically switches to "sump distillation". The continuous filling into the distillation units is stopped and the amount of solvent still present in the distillation units boiler is evaporated until the dirt becomes a thick concentrate. The distillation units then switches off and is ready for manual or fully automatic emptying.
The distilled or purified solvent flows continuously from the distillation units into the customer's on-site tank.
Perfect scraper system in ASC-500 distillation units
A further feature of the ASC solvent distillation units is a slow-running scraper agitator with automatically adjusting doctor blade made of PTFE. This unique doctor blade (scraper) system has been further developed over 30 years and is now used in our solvent distillation units for its robustness and cleaning efficiency. Two strong scrapers made of PTFE optimally clean the conical evaporator vessel in the solvent distillation units and do not have to be readjusted. The doctor blades or scrapers clean the boiler wall over the entire filling area and not only at the boiler bottom like other solvent distillation units.
The contact pressure on the steep walls is optimal and large enough to prevent the build-up of deposits in solvent distillation units.
Flexible process in distillation units and adaptation to customer requirements:
The entire solvent distillation process for the distillation units 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 for the distillation units integration. And this in national language bps. Chinese, Russian etc.! OFRU distillation units are multi-language ready.
Discharging the distillation residues in ASC distillation units:
The viscous solvent residues in the distillation units are emptied by gravity via a slide valve at the lowest point of the conically round boiler. The distillation units can then be automatically refilled with contaminated solvent. A new continuous distillation process of solvents begins.
| Technical data | ASC-500 37 kW kW with vacuum |
| Boiler vessel volume | 500 l |
| Constant filling volume, level controlled | ~ 250 l |
| Distillation rate approx. | 80-160 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 | 37 kW |
| Power consumption vacuum unit | 1,1 kW |
| Compressed air consumption approx. | 6 bar, Max. 50 l/min. |
| Required effective cooling capacity approx. | 30 kW |
| Cooling water consumption (8-12° C) approx. | 2.0 m³/hr |
| Width x depth x height approx. | 2.20 x 1.10 x 3.20 (always depending on configuration and changes) |
| Weight approx. | ~ 1,400 kg |
- All parts in contact with the product are almost exclusively made of stainless steel
- Automatic and continuous filling with contaminated solvents
- Level level is kept constant, thus largely constant distillation performance
- Rotated conical stainless steel distillation vessel: Simple and complete emptying of the boiler by gravity and scraper insert.
- Perfect scraper system: scraper scrapes off the inside wall of the boiler, no readjustment necessary. Optimum tank cleaning guaranteed
- Modern steam heating integrated: Solvent heats up much faster than with thermal oil systems, No oil change more necessary = saves maintenance costs, no more encrusted heating elements, always constant heating output, no oil sludge in the system, no more boiler corrosion due to humidity in the thermal oil jacket
- Water cooling: Optimum condensation of the solvent vapours even at high ambient temperatures
- Switch cabinet IP54, with digital SIEMENS control S7 1200
- Switch cabinet with SIEMENS HMI colour TFT comfort panel with touch operation and process overview
- Automatic mode
- Auto-Stop: If dirty barrel or storage tank is empty, if temperature errors occur, if there is no water in the double jacket, if there is no cooling water available
- Constructed according to the latest European directives: Operational safety at a high level
* Note for these distillation units: 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
[Translate to Englisch:]
Typische Destillationsleistung, nach praktischen Erfahrungen:
Ethanol / Ethylacetat im Flexodruck: ca. 45-55 Liter / Stundel Bei Verwendung nitrocellulosehaltiger Lösemittel wird aus Sicherheitsgründen nur mit max. 105 °C geheizt.
Lösemittel bei der Druckplattenproduktion: Ca. 60 Liter / Stunde
Farb- und Lackindustrie: Ca. 50-90 Liter / Stunde.