# Industrial Double-Effect Vacuum Evaporation Plant for Botanical
Extract Concentration – 3,060 kg/h
Overview
Complete industrial double-effect vacuum evaporation plant
manufactured by INDETEC, S.L. – Grupo Vento, designed for the
concentration of botanical and plant extracts using falling-film
evaporation technology.
The installation integrates two tubular falling-film evaporators, a
tubular pasteurisation stage, separation vessels, a vertical surface
condenser, heat recovery equipment, process pumps, a liquid-ring
vacuum pump, auxiliary tanks, instrumentation and an automated control
and monitoring system.
The double-effect configuration is designed to concentrate liquid
products by evaporating water under vacuum conditions, using thermal
energy efficiently across the evaporation stages. The system also
incorporates heat recovery through plate heat exchangers to preheat
the incoming product.
According to the available technical documentation, the installation
has a nominal processing capacity of 3,060 kg/h. Actual production
rates depend on the composition, initial concentration, target
concentration, viscosity and thermal characteristics of the processed
material.
The equipment is offered as one complete industrial installation,
including the visible process equipment, associated pipework,
electrical controls, platforms, access ladders, structural supports
and accessories belonging functionally to the plant.
The installation is currently located in Vícar, Almería, Spain.
1. Main Equipment – INDETEC Double-Effect Vacuum Evaporator
Manufacturer: INDETEC, S.L. – Grupo Vento
Equipment type: Industrial vacuum evaporation and concentration plant
Process: Double-effect falling-film evaporation
Application: Concentration of botanical and plant extracts
Nominal processing capacity: 3,060 kg/h, according to the available
listing information
The principal equipment comprises two tubular falling-film evaporation
assemblies, identified as H1 and H2, working with two vertical
separation vessels, C1 and C2.
Each evaporation assembly incorporates a product distribution system,
tubular heat-transfer section, steam jacket, expansion zone, lower
product collector, internal cleaning provisions and connections for
product, steam, recirculation and cleaning services.
The separation vessels feature cylindrical bodies with conical
bottoms, cyclonic product inlets, inspection windows, access openings,
cleaning systems and pressure and temperature instrumentation.
This configuration is intended to support continuous industrial
concentration processes. The actual performance and achievable final
concentration depend on the product being processed and the operating
conditions.
2. CIP Launch and Cleaning Tank
The installation includes a vertical stainless-steel tank used for
product introduction and cleaning-in-place (CIP) operations.
Technical details:
- Quantity: 1 unit
- Construction: Vertical cylindrical stainless-steel vessel
- Capacity: 1,500 litres
- Approximate body diameter: 955 mm
- Approximate body height: 2,000 mm
- Bottom configuration: Klöpper-type dished bottom
- Support: Three legs
- Accessories: Process connections, valves and instrumentation
The tank forms part of the product handling and cleaning arrangement
associated with the evaporation installation.
3. Tubular Pasteurisation Unit
The system includes a tubular pasteurisation heat exchanger with a
product retention section.
Technical details:
- Quantity: 1 tubular heat-transfer assembly
- Approximate tube bundle length: 3,000 mm
- Internal tube dimensions: 27 × 30 mm, as documented
- Product retention time: Approximately 30–40 seconds
- Heating arrangement: External steam jacket
- Instrumentation: Condensate level indication, pressure/vacuum gauge
and thermometer
- Connections: Product, steam and condensate lines
The pasteurisation stage provides controlled thermal treatment of the
product before or as part of the concentration process, subject to the
installation's intended process configuration.
4. Falling-Film Evaporator Assemblies H1 and H2
Two tubular falling-film evaporator assemblies form the core of the
plant.
Technical details:
- Quantity: 2 units
- Identification: H1 and H2
- Internal tube dimensions: 50 × 53 mm
- Approximate tubular length: 6,000 mm
- Approximate total length of each assembly: 8,250 mm
- Product distribution system at the upper section
- Internal cleaning provisions
- Steam-jacketed tubular body
- Expansion section
- Lower product collector
- Connections for steam, product, recirculation and cleaning
- Inspection openings, safety valves and measuring instruments
The falling-film arrangement distributes liquid over the internal
heat-transfer surfaces, supporting evaporation under controlled
operating conditions.
5. Separation Vessels C1 and C2
The installation includes two vertical separation vessels associated
with the evaporation stages.
Technical details:
- Quantity: 2 units
- Identification: C1 and C2
- Vertical cylindrical construction with conical bottoms
- Cyclonic product inlet configuration
- Inspection windows and access openings
- Cleaning provisions
- Pressure and temperature instrumentation
- Connecting pipework to the H1 and H2 evaporator assemblies
These vessels support the separation of vapour and concentrated liquid
within the evaporation process.
6. Vertical Surface Condenser
The plant incorporates a vertical, multi-pass tubular surface
condenser connected to the vacuum system.
Visible and documented features include:
- Vertical tubular construction
- Approximate reference length between plates: 6,000 mm
- Internal tube dimensions: 27 × 30 mm
- Steam jacket
- Expansion and condensate separation components
- Connection to the vacuum pump
- Cooling-water inlet and outlet connections
The condenser is designed to condense vapour generated during the
evaporation process and support operation under vacuum conditions.
7. Process Pumps and Vacuum System
The installation includes a group of stainless-steel centrifugal
process pumps mounted on supporting bases and equipped with mechanical
seals.
The pumps serve various process functions, including:
- Product feeding
- Product recirculation
- Cleaning and CIP operations
- Condensate handling
- Concentrated product transfer
- Auxiliary process services
A stainless-steel liquid-ring vacuum pump is also included. It is
mounted on a base and incorporates suction, discharge and water
connections.
The vacuum pump is integrated with the evaporator and condenser system
to support the reduced-pressure operating conditions required by the
process.
The number, individual models, motor ratings, flow rates and operating
performance of the pumps should be verified against their respective
identification plates and technical documentation.
8. Heat Recovery System
The installation incorporates plate heat exchangers designed to
recover thermal energy from condensate and evaporated water streams
and use it to preheat the incoming product.
Included equipment comprises:
- Plate heat exchangers
- Stainless-steel heat-transfer plates
- A visible Kelvion plate heat exchanger
- Associated piping, valves and connections
Heat recovery can reduce external heating requirements, depending on
product characteristics, operating conditions and the configuration of
the process.
9. Auxiliary Equipment – Bionet IAE-600
The lot includes a visible auxiliary unit identified as Bionet
IAE-600.
The unit comprises:
- Auxiliary tank
- Electrical control cabinet
- Operator display and control screen
- Associated connections and accessories
Its precise function within the complete installation should be
confirmed against the original process documentation and during the
site inspection.
10. Automation, Instrumentation and Control
The plant is equipped with an electrical control cabinet and a
supervisory control and data acquisition (SCADA) system.
The installation includes visible instrumentation and automation
components for monitoring and controlling relevant process parameters,
including:
- Pressure
- Temperature
- Liquid level
- Flow
- Manual and actuated valves
- Process control and monitoring interfaces
- Electrical cabinets and associated wiring
- Instrumentation connections and cabling
The operational status, software configuration, completeness and
functionality of the automation system have not been independently
verified.
11. Materials of Construction
According to the available technical documentation:
- Product-contact components: AISI 316/316L stainless steel
- Plates, flanges, supports and auxiliary components: AISI 304
stainless steel
- Stainless-steel surface finish: Industrial 2B
- Welds: Pickled and passivated
- Main support structure: Painted carbon steel
- Documented structural finish: RAL 9003, white
- Pressure- or vacuum-operated vessels: Designed according to ASME
Section VIII, Division 1, as stated in the supplied documentation
These material and design references should be checked against the
applicable equipment documentation before use in regulated or
product-sensitive applications.
12. Structure, Platforms and Access
The complete installation includes a tall independent support
structure with upper and intermediate working platforms, stairs,
vertical caged ladders, guardrails, equipment supports, bases and
anchoring components.
The structure provides access for inspection and maintenance of the
vertical evaporation equipment.
Due to the height and configuration of the plant, dismantling and
removal require detailed planning, suitable lifting equipment and
appropriate access systems.
Actual overall dimensions and individual component weights must be
verified before dismantling, lifting and transport.
13. Condition and Inspection
According to the seller's description, the equipment is new,
practically unused and in very good overall condition, with
well-maintained stainless-steel surfaces and few visible signs of
use.
The installation remains installed at its current location. The stated
visual condition does not constitute an independent guarantee of
operational performance, commissioning status or suitability for a
particular process.
Prospective buyers are encouraged to arrange a site inspection to
verify the equipment configuration, materials, identification plates,
documentation, actual dimensions, weights, operating condition and
dismantling requirements.
14. Dismantling, Disconnection and Collection
The installation is sold installed and in its current location.
The purchaser is responsible for all costs, resources and risks
associated with disconnection, draining, cleaning, dismantling,
preparation, lifting, extraction, loading and removal.
A site-specific dismantling plan must account for the height and
vertical configuration of the evaporation equipment, including the
sequential removal of platforms, access ladders, support structures,
tubular evaporators, separation vessels, condenser, tanks, pumps and
pipework.
All relevant product, steam, condensate, vacuum, cooling-water,
process-water, compressed-air, electrical, instrumentation, drainage
and vent lines must be safely isolated and disconnected. Cut-off
points must be agreed in advance, and remaining services must be left
in a safe condition.
The purchaser must engage suitably qualified personnel and provide all
required access equipment, lifting equipment, transport and technical
resources.
Loading, transport and packaging are not included in the sale.
15. Scope of Supply
The sale includes the equipment, components and accessories shown in
the listing photographs that belong functionally to the evaporation
plant, including:
- CIP launch and cleaning tank
- Tubular pasteurisation assembly
- Two falling-film evaporator assemblies H1 and H2
- Two separation vessels C1 and C2
- Vertical surface condenser
- Condensate and air separation vessel
- Centrifugal process pumps
- Liquid-ring vacuum pump
- Pump mechanical-seal cooling system
- Auxiliary process tanks
- Plate heat exchangers, including the visible Kelvion unit
- Bionet IAE-600 auxiliary unit
- Electrical control cabinet and SCADA system
- Process instrumentation and valves
- Process pipework, manifolds, flanges and connections
- Support structure, platforms, stairs, ladders and guardrails
- Bases, anchoring components and associated accessories
General building structures, enclosures, doors, roofs, general
electrical installations, shared factory utility networks and pipework
beyond the agreed cut-off points are excluded.
16. Location
Vícar, Almería, Spain.
Important Information
All technical specifications, capacities, dimensions, materials and
other characteristics are provided for information purposes and are
based on available photographs, drawings, process diagrams and
technical documentation.
The stated nominal processing capacity is indicative and depends on
the composition, concentration, viscosity and thermal behaviour of the
feed material. No guaranteed production rate or final product
concentration is implied.
Buyers should verify the identity and completeness of the equipment,
actual operating performance, dimensions, weights, utility
requirements, documentation, certifications and suitability for the
intended application before purchase.
We have more equipment available in the Industrial Machinery and
Process Equipment category. Please contact us for further information.
Spain
04738 Vícar, Almería 
