Evaporators are used to covert the liquid into vapor by means of
heating process. Likewise, Industrial Evaporator is a device which is
used to vaporize some part or all of the solvent from a solution.
These Industrial Evaporators are generally used in Food and Beverage
industry, Pharmaceutical industry and Chemical Industry. Different
industries have different evaporators for various purposes like, in
Chemical industry, Industrial Evaporators are used to separate water
content from the solution to get the desired product whereas, in
Pharmaceutical industry, long-term preservation is assisted by the
evaporation process only.
Basic Principle of Industrial Evaporators
Industrial evaporators are generally used to separate water
content from the a product to get a desired output. This is done by a
very simple method. The solution, from which the water content has to
be separated is fed into the evaporator and passes through a heat
source. The heat of the heat source boils the solution and the
present water content evaporates from the solution. Afterward, the
solution passes through the concentrating and separating section
which removes the vapor being produced from the solution. In this
way, all the water content is separated from the solution and the
desired product is left.
Industrial Evaporators: Types
There are different types of evaporators available in the market
for varied industrial applications. Some of these are:
1. Rising Film Evaporators
Rising film Evaporator consists of five elements viz. Product
inlet, vapor outlet, concentrator, heating steam inlet and condenser.
The operation of this type of evaporator is based on the
thermo-siphon principle. It is ideal to use for evaporating the
highly viscous materials and that have a tendency to foul (adversely
affect) the surface of the heating system.
Features of Rising film Evaporators
- Simple and compact structure
- Ideal for corrosive liquids
- Helpful for processing heat sensitive materials
2. Falling Film
Evaporators
The structure of Falling Film evaporators consists of five parts
that includes Head, Calandria Upper Part, Calandria Lower Part,
Mixing Channel and vapor separator. This evaporator is widely used by
various industries because of its salient characteristics like it can
be operated with very low temperature differences between the heating
element and the boiling liquid. Therefore, it becomes ideal for
handling heat sensitive materials such as fruit juices.
Features of Falling Film Evaporators
- Short holding time of liquid
- Protects overheating
- Forms thin film
- Distributes the fed material
3. Force Circulation
Evaporators
Force Circulation Evaporators can deal with salting, scaling and
fouling fluids. These are best suitable for crystalline items,
corrosive and thick solutions. These evaporators have generally high
hold up time subsequently not suitable for those fluids which are
heat sensitive. The structure of Force Circulation Evaporator is
formed by assembling Calandria, Separator, circulation pump and
concentrate pump.
Features of Force Circulation Evaporators
- High holding time of liquid
- Suitable for crystalline items
- Handle salting, scaling and fouling fluids
4. Short Tube Vertical
Evaporators
Short Tube Vertical Evaporators are the most popular & highly
sought after by numerous industry segments. These are mostly utilized
in Sugar Industry in dissipation of sweetener-juice. This type of
evaporator is generally economical and has simple De-scaling. By
introducing a propeller, propeller calendria sort evaporator could be
utilized for crystalline items.
Features of Short Tube Vertical Evaporators
- Largely utilized in sugar industries
- Simple de-scaling
Apart from all these, lots of other evaporators also exist like
Flash Evaporator, Wiped film Evaporator, Combination Evaporators and
Freeze Concentrator.
How to find Industrial Evaporators Manufacturers
and Suppliers Online?
It is very simple to find Industrial Evaporators Manufacturers
online as there are many B2B portals which provide the information of
Evaporator suppliers. Each offers a wide range of such evaporators,
designed as per the requirement of the industry and the type of
industry. Clients can avail quality evaporators from reliable
suppliers which are accompanied with all the basic necessities and
available at reasonable prices. But before selecting the desired
product, buyers must check some properties regarding the evaporator
which are:
- Scaling Tendency
- Nature / Application area of the evaporator
- Heat Sensitivity
- Foaming Tendency
- Viscosity of product
- Thermal Characteristics of the evaporator
- Degree of Concentration
- Rate of Evaporation
