Mohtasim Mapkar Prasad More Parth Kulkarni Abuzar Madki Guide-p.m.sonawane Bstract Roposed Etup

Design and Fabrication Of a Portable Industrial Mixer For Low Viscosity Fluids Group No. 1 Mohtasim Mapkar Prasad More Parth Kulkarni Abuzar Madki Guide- P.M.Sonawane

ABSTRACT Mixing is one of the primary operations in industries like chemical, biochemical, paper, food, cosmetic and pharmaceutical applications. Mixing equipment must be designed for mechanical and process operation. This work is concerned with design of an optimum mixer that operates with maximum efficiency and achieves proper mixing. This work is aimed to design and fabricate an industrial mixer for mixing low viscosity fluids (up to 3 cP) and low density fluids (up to 1100 kg/m3). The initial phase being selection of operational process characteristics such as impeller design, operating speed, type of flow, etc. Followed by it is the mechanical design of a structure to support the motor and ensure portability for hassle free mixing solutions. First the impeller which was selected to be pitched blade turbine is designed. Based on which, the shaft design as well as motor power requirements were calculated and motor was selected. Along with it, different solutions were scrutinized for their viability in the application to have at least two motions. Further, static analysis was carried out using FEA software (Solidworks & ANSYS) for design of motor mount as well as to check the safety of the designed structure. Finally, after the design is complete, an industrial mixer will be fabricated using the selected materials referring to the engineering drawings of individual components.

FOCUS OF THE

STUDY

From this project, we intend to provide a portable mixing solution for low viscosity fluids such as milk, benzene, water, methanol, ethanol, etc. The setup on development can be used for applications such as pasteurization of milk, curd culturing, chemical mixing in chemical industry as well as perfume industry. The study can also be expanded to verify the impact of multiple impellers on mixing.

OBJECTIVES 1. To eliminate the necessity of different setups for different mixing processes.

2. To design and fabricate an industrial mixer for mixing fluids of a range of viscosities. 3. To achieve maximum mixing efficiency. 4. To achieve portability for ensuring hassle free mixing at various stations.

METHODOLOGY Selection of mixing fluid and quantity

Design of portable frame

Shaft & coupling design

Design of vessel

Selection of motor

Selection of bearing

Preliminary design of layout

Selection of impeller design

Testing & Optimization

RESULTS Tank Dimensions: 1. Capacity: 200 l 2. Height: 950 mm 3. Diameter: 590 mm

Process parameters: 1. Reynold’s number: 5.7*10^5 2. Power number: 1.27 3. Floe number: 0.8

Frame Design 1. Height: 1720 mm 2. Width: 800 mm 3. Motor sliding length: 670 mm Impeller Dimensions 1. Diameter: 236 mm 2. Width: 40 mm 3. Thickness: 12 mm

Motor specifications: 1. Power: 0.5 HP 2. Speed: 400 rpm 3. Torque: 8.90 Nm

PROPOSED SETUP

Fig 2. Motor mount static analysis

CONCLUSION From this work, an effort has been made to design and fabricate a portable industrial mixer for mixing low viscosity fluids while achieving maximum efficiency and ensuring hassle free mixing at various stations.

Fig 1. Portable mixer assembly

Fig 3. static analysis of Motor sub-assembly

REFERENCES 1. David Dickey & J. B. Fasano, Industrial Handbook Of Mixing - Science & Practice Pg no 1247 – 1329 2. Tomáš Jirout, František Rieger, Impeller design for mixing of suspensions Czech Technical University in Prague, Faculty of Mechanical Engineering, Department of Process Engineering, Technická 4, 166 07 Prague 6, Czech Republic 3.V.M Mahajan & S.B Joshi, Process Equipment Design 4.Ronald J Weetman, Bernd Gigas, Mixer Mechanical design – Fluid Forces, Proceedings of the 19 th international pump users symposium 5. Uhl, V. W. and Gray, J. B., Eds. Mixing Theory and Practice, Volume 1, Academic Press Inc., 6. V.S. Pordal & C.J. Matice, Design analysis and scale up of mixing processes. SES Process Technology group. 7. Kushare D.A , Dhepale D.P. Ukirde A.S Lande S.C., Prof. Dange B.S., Design & Fabrication Of Bi-Directional Mixer International Journal of Advance Research in Engineering, Science & Technology (IJAREST) Volume 4, Issue 3, March 2017, eISSN: 2393-9877, print-ISSN: 23942444 8. N.B Jadhav & Prof. V.G. Bhamare, Experimental investigation of agitator to optimize performance & cost. International Engineering Research Journal pg no 1154-1162 9. Sumit R Desai, S.Y. Gajjal & Kulloli, Redesign and structural analysis of agitator shaft for reactor pressure vessel. International Journal of Current Engineering and Technology E-ISSN 2277 – 4106, P-ISSN 2347 – 5161