Solvent recycling/ vacuum distillation units SRU-320 to SRU-3000

Vacuum distlialltion units for solvent recycling in big scale. Ideal for daily quantities of 1.100 - 20.000l.

 

The filling of the units SRU-320 to SRU-3000 takes place fully automatic and is controlled by filling level regulation. At the end of the process the distillation residues are treated up to the desired residual solvent rate. Therefore, almost unattended 24-hour operation is possible.

Instruments in the front panel inform about process pressure, solvent gas temperature and heating temperature of the unit. The discharging of the residues is done via the scraper system and the discharge slide damper. A manhole aperture with persistent O-ring seal on the top of the unit ensures operator convenience. Additionally the inspection glass of the manhole aperture allows visual observation of the process in every distillation phase.

The unit is equipped with switching cabinet and PLC control unit. The control unit ensures the desired process flow and monitors the compliance of all safety relevant parameters. 

The vacuum unit reduces the boiling point of the solvent, avoiding thermal decomposition of the solvent. At the same time the energy consumption is decreased, solvent yield, performance and distillate quality as well as operation safety are greatly increased. Additionally the process under vacuum (and therefore the absence of oxygen) offers a improved explosion protection and a more favorable ex-zone classification.

Distillation unit
 
Double walled, conical, vertical container
Stirring-/ scraper system in -design with adjustable, nonarcing scraper system
Cleaning-/ maintenance aperture in manhole version
Safety closure with O-ring seal
Manual drain valve (DN 200) with final position switch
Pneumatic drain valve (DN 200) with electro-pneumatic -pilot valve and final position switch
Pneumatic drain ball for automatic discharge of liquid residues
Container interior electropolished

 = Standard,   = Optional

Vakuumeinheit
 
Vacuum pump in  -design
Liquid ring vacuum pump, up to 35mbar, low maintenance
High-performance chemistry diaphragm pump up to 10mbar
Dry running high performance pump, up to 1mbar, low maintenance

 = Standard,   = Optional

Heizung
 
Heating in  -design
1 to 3 stage, PID-controlled heat carrier heating
Redundant temperature and heating monitoring
Heat carrier: thermal oil
4 and multi-stage, PID-controlled heat carrier heating
Heat carrier: hot water
Heat carrier: steam

 = Standard,   = Optional

Frame variants
 
Anodized, conductive aluminium profile frame only SRU-320
Conductive, painted steel frame
Powder coated, conductive steel frame
Galvanized, conductive steel frame
Conductive stainless steel frame

 = Standard,   = Optional

Safety/ system integration
 
Explosion protection class EX II 3 G c IIA T3 (with inerting and suction)
Inerting unit
Suction hood at slide damper
Explosion protection classe EX II 2 G c IIA T3 (without inerting and suction)
External, single or double-walled container for fresh/ contaminated or mixed goods
Feed station for mix-container
Mobile and tiltable residue container
Safety collecting drip pan according to WHG
Integration in existing plants/ systems

 = Standard,   = Optional

Control system
 
Fully automatic, PLC operated system
Designed for monitoring free 24h operation
Delay timer for night-/ weekend operation
Including 15m cable loom (from unit to switching cabinet)
At unit  
     On-/ off-switch
      -operation indicator lamp
      -error indicator lamp
     Emergency stop palm button
At switching cabinet  
     Graphics display and operating terminal at cabinet door, monochromatic, 16 gradations, touchscreen
     Operation indicator lamp
     Error indicator lamp
     Emergency stop palm button
     PID-controller & display
50m cable loom
At unit  
     Graphics and operating terminal in  -design
At switching cabinet  
     Graphics display and operating terminal with color display, touchscreen

 = Standard,   = Optional

Service
 
24 months warranty
Pan-european 24h on-site service
Express shipment of spare parts
Up to 60 months warranty
Remote maintenance through automation device or modem
Support at the creating of the explosion protection document

 = Standard,   = Optional

Outstanding characteristics
 
Wetted parts in stainless steel, including double jacket for heat carrier
Stainless steel heat exchanger, welded

 = Standard,   = Optional

 

Further options on request

 

Conical, vertical distillation vessel
  • Easy discharging and cleaning using gravitation and scraper system
 
Stirring and scraper system
  • Prevention of incrustation at the inner surface of the vessel
  • Optimized heat transfer inside the vessel
  • Individually customized scraper provide optimal vessel cleaning without sparking

 

Prepared for water cooling
  • Emission minimized condensation of the solvent gases even at high ambient temperatures

 

Switching cabinet with electrical control system
  • Continous process flow
  • Monitoring/ compliance of the safety parameters
  • Designed for 24h operation (minimized unit supervision)

 

Highest economic efficiency
  • Amortisation normally < 1 year
  • Low operational costs
  • High recovery rate (up to 98%)

 

Automatic and continous operation
  • No cooling phase of the unit
  • No manual filling

 

Process optimization
  • Production optimization through constant distillate quality
  • Minimization of disposal costs
  • Minimization of fresh goods purchase and storage costs
  • Minimization of disposition and handling expenditures
Systems engineering according to european regulations
  • Highest operational safety
 
 

  • Overall capacity (l)
  • Operating capacity min.-max. (l)
  • Nominal distillation rate (l/h) (1)
  • Process pressure (bar)
  • Process temperature max. (°C) (2)
  • Thermal oil heating
  • Protection class with inerting and suction
  • Power input normal operation ca. (kW)
  • Power input heating (kW)
  • Voltage (3)
  • Frequency (3)
  • Cooland requirement (m³) (7)
  • Width (mm)
  • Height (mm) (4)
  • Depth (mm)
  • Net weight approx. (kg)
  • Related vacuum unit
  • Vacuum pressure max. (mbar) (5)
  • Max. suction capacity (m³/h) (6)
  • Weight approx. (kg)

SRU-320

  • 320
  • 150-180
  • 50-80
  • -1,0 to +0,5
  • 200°
  • integrated
  • EX II 3 G c IIA T3
  • 12
  • 15
  • 230/ 400V, 3PH
  • 50Hz
  • 1,8
  • 1250
  • 1400-2750
  • 1750
  • 700
  • DT-30
  • 35
  • 25
  • 65

SRU-450

  • 450
  • 250-300
  • 70-130
  • -1,0 to +0,5
  • 200°
  • integrated
  • EX II 3 G c IIA T3
  • 15
  • 20
  • 230/ 400V, 3Ph
  • 50Hz
  • 1,8
  • 2400
  • 2800-3000
  • 1800
  • 1000
  • DT-30
  • 35
  • 25
  • 65

SRU-650

  • 650
  • 350-400
  • 80-160
  • -1,0 to +0,5
  • 200°
  • integrated
  • EX II 3 G c IIA T3
  • 21
  • 30
  • 230/ 400V, 3Ph
  • 50Hz
  • 2,0
  • 2800
  • 3250-3400
  • 1800
  • 1200
  • DT-50
  • 35
  • 50
  • 100
  • Overall capacity (l)
  • Operating capacity min.-max. (l)
  • Nominal distillation rate (l/h) (1)
  • Process pressure (bar)
  • Process temperature max. (°C) (2)
  • Thermal oil heating
  • Protection class with inerting and suction
  • Power input normal operation ca. (kW)
  • Power input heating (kW)
  • Voltage (3)
  • Frequency (3)
  • Cooland requirement (m³) (7)
  • Width (mm)
  • Height (mm) (4)
  • Depth (mm)
  • Net weight approx. (kg)
  • Related vacuum unit
  • Vacuum pressure max. (mbar) (5)
  • Max. suction capacity (m³/h) (6)
  • Weight approx. (kg)

SRU-1500

  • 1500
  • 1000-1200
  • 200-500
  • -1,0 to +0,5
  • 200°
  • separate(8)
  • EX II 3 G c IIA T3
  • 35
  • 50
  • 230/ 400V, 3PH
  • 50Hz
  • 2,5
  • 2800
  • 3800-4000
  • 1800
  • 1600
  • DT-95
  • 35
  • 80
  • 140

SRU-2000

  • 2000
  • 1200-1500
  • 300-600
  • -1,0 to +0,5
  • 200°
  • separate(8)
  • EX II 3 G c IIA T3
  • 50
  • 60
  • 230/ 400V, 3Ph
  • 50Hz
  • 3,0
  • 2800
  • 4000-4200
  • 1800
  • 1800
  • DT-110
  • 35
  • 100
  • 165

SRU-3000

  • 3000
  • 1800-2000
  • 400-900
  • -1,0 to +0,5
  • 200°
  • separate(8)
  • EX II 3 G c IIA T3
  • 65
  • 80
  • 230/ 400V, 3Ph
  • 50Hz
  • 3,5
  • 3200
  • 4600-4800
  • 2000
  • 2300
  • DT-130
  • 35
  • 110
  • 180

(1) depnding on solvent, operating conditions, contamination and water content, (2) higher temperatures possible, (3) further on request, (4) depending on residue container, (5) vacuum systems for max. 1mbar possible, (6) operating liquid H2O at 15°C, at 50Hz, (7) at max. 15°C, (8) integrated on request

The technical data stated above are to be regarded as orientation, as every unit is built and developed according to your wishes and requirements. Changes, errors and omissions excepted. Photos and images can differ from actual quotation.

 

 

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