Jayesh Tekchandaney is the Technical Director at Unique Mixers & Furnaces Pvt. Ltd.
(www.uniquemixer.com) and the Projects Director at Unimix Equipments Pvt. Ltd. Unique
Mixers is engaged in the design, manufacture and supply of industrial mixers for liquid,
solid and viscous mixing applications. Unimix Equipments manufactures a wide range
of industrial process equipment such as reaction vessels, pressure vessels, columns, heat
exchangers, ball mills. Unimix Equipment also has a custom metal fabrication division
manufacturing stacks, pipings, ducts, heavy structures.
Jayesh is the author of the chapter titled “Mixers” in a John Wiley publication titled
“Process Plant Equipment Operation, Reliability and Control” and a contributor to
the “Dictionary of Industrial Terms”. He is an expert adviser in the field of
Industrial Mixing, and has to his credit articles on mixing technology
published on his technical blog www.mixing-expert.com.
up the mixer specifications based on
the inputs received from the customer
and our special knowledge of mixing
equipment, systems. The specifications
provide details on equipment geometry,
impeller type, power transmission
system for the agitator, internal surface
finish requirement of the mixer, material
charging and discharge systems, electrical
operations, instrumentation and so on.
The specifications are reviewed along with
the end user and fine tuned to achieve
the desired objectives. The equipment
design is thus derived based on process
objectives and is backed by sound
mechanical design. For new applications,
we offer technology support through our
laboratory and pilot scale testing facilities,
which is equipped with prototypes of
mixing equipment. These trials enable
us to better understand the process and
recommend a customized solution to
the end user requirements. The focus on
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PECM Issue 29
continual development is driven by the
end users increasing demand to maximize
productivity and performance from the
process equipment. Sound engineering
is backed up by the good manufacturing
practices and guidance during equipment
installation and commissioning.
7) What are some best practices
you can offer end-users in the
areas of specification, installation
and maintenance of fluid mixing
equipment to ensure the desired mixing
performance and long-term trouble free
operation?
A good working relationship between
the equipment manufacturer and the
end user is critical to satisfactory mixing
performance. It is the responsibility of
the equipment manufacturer to build
and deliver mixing equipment that has
been custom designed for the end user’s
applications, and is maintenance friendly.
The manufacturer should guide and assist
in the installation and commissioning to
ensure trouble-free operation of the mixer.
The following are our recommendations.
Mixer Specifications are to be clearly
defined in terms of:
(a) Process objective
(b) Process materials and their properties
(c) Equipment capacities – gross volume
and working volume
(d) Materials of construction for wetted
and non-wetted parts of the mixer
(e) Surface finish requirements
(f ) Operating pressure and temperature
conditions