OFRU - Model ASC-500 50 kW -Solvent Recovery Plant

Heating of solvent recovery plant ASC-500

A special feature of the solvent recovery plant is the conical stainless steel distillation vessel or boiler, in which the shell surfaceis heated with steam. The solvent recovery plant heating steam in the double jackettransfers the heat extremely quicklyto the solvent. At the same time,high distillation performance is achieved with a small boiler volume.

The solvent recovery plant has a clever design. Only one electrical connection is required for the integrated steam heating of the solvent recovery plant. A high performance liquid ring vacuum pump conveys the dirt into the solvent recovery plant and guarantees continuous 24 hour operation. During automatic distillation in the recovery plant, the evaporated amount of solvent is automatically replenished by the addition of dirt into the solvent recovery plant. Thisautomatic continuous distillation modecan be set by timer.

Solvent recovery plant safety function:

If the dirt tank of the customer contains no more solvent, the solvent recovery plant receive a signal and automatically switches to"sump distillation". The continuous filling into the solvent recovery plant is stopped and the amount of solvent still present in the solvent recovery plant boiler is evaporated until the dirt becomes a thick concentrate. The solvent recovery plant then switches off and is ready for manual or fully automatic emptying.

The distilled or purified solvent flows continuously from the solvent recovery plant into the customer`s on-site tank.

Perfect scraper system in ASC-500 solvent recovery plant

A further feature of the ASC solvent recovery plant 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 recovery plant for its robustness and cleaning efficiency. Two strong scrapers made of PTFE optimally clean the conical evaporator vessel in the solvent recovery plant 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 recovery plants.

The contact pressure on the steep walls is optimal and large enough toprevent the build-up of depositsin solvent recovery plant.

Flexible process in solvent recovery plant and adaptation to customer requirements:

The entire solvent distillation process for the solvent recovery plant 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 solvent recovery plant integration. And this in national language bps. Chinese, Russian etc.! The OFRU solvent recovery plant is multi-language ready.

Discharging the distillation residues in ASC solvent recovery plant:

The viscous solvent residues in the solvent recovery plant are emptied by gravity via a slide valve at the lowest point of the conically round boiler. The solvent recovery plant can then be automatically refilled with contaminated solvent. A new continuous distillation process of solvents begins.

• Heating capacity of the solvent recovery plant: 50 kW

• Fill level control by Endress Hauser Oscillating fork measuring System (overfill protection and constant fill level)

• Individual fault messages and detailed fault report

• Large heat exchanger

• More distillation capacity

• Technical data ASC-500 50 kW kW with vacuum
• Boiler vessel volume 500 l
• Constant filling volume, level controlled ~ 250 l
• Distillation capacity approx. 100-220 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 50 kW
• Power consumption vacuum unit 1,1 kW
• Compressed air consumption approx. 6 bar, Max. 50 l/min.
• Useful cooling capacity demand approx. 40 kW
• Cooling water consumption (8-12° C) approx. 4.0 m³/hr
• Width x depth x height approx. 2.20 x 1.10 x 3.20 (always depending on configuration and changes)
• Weight approx. ~ 1,500 kg