Design And Development Of An Integrated Fish Feed Machine

ABSTRACT

The integrated fish feed  machine is used for processing a variety of materials into higher grade aquatic feed pellet for fish, catfish, shrimps, crabs, etc. The final feed pellet have a smart shape and texture, good taste and nutrition and floats.The designed integrated fish feed machine consist of  major parts; the Grinder set,the Screw shafts(one for the grinding and the bigger shaft for the screw press), the dice, and the Drying chamber, knife, Rope belt, Electric motor, etc. It is operated using a roll die type extrusion press to force the formulated feeds out of the die plate.  The continuous motion of the screw press shaftrolls the materials to the die plate, forcing the materials to go through the holes of the die plate and come out as pellets. Awaiting to cut the pellets to uniform size is a rotating knife that rotates with auger shaft. After being cut they fall naturally under gravity into the drying chamber from which the exit being ready.The machine had an overall dimension of 100cm height by 90cm length by 40cm weight. The pellets produced has a bulk density of 0.51g/cm³so it could float on water. This machine despite its relatively high efficiency, compatibility with respect to the size, its cost is minimal and this is referred as “OPTIMUM” in engineering.

TABLE OF CONTENTS

Cover page                                                                                                             

Title page                                                                                                                        i

Declaration                                                                                                                      ii

Certification                                                                                                                    iii

Dedication                                                                                                                       iv

Acknowledgement                                                                                                           v

Table of content                                                                                                               vi

List of figures                                                                                                                  ix

Abstract                                                                                                                            x

CHAPTER ONE

1.0. INTRODUCTION

1.1  Background of study                                                                                                       1

1.2  Problem statement                                                                                                           4

1.3  Aim/ objective of study                                                                                                   5

1.4  Scope of the study                                                                                                                       6

1.5  Justification                                                                                                                      6

CHAPTER 2: LITERATURE REVIEW

2.1 Development of fish feed production technologies                                                         8

2.2.1Mechanization of fish feed production and its review                                                      9

CHAPTER 3: MATERIALS AND METHODS

3.1    Materials                                                                                                                        14

3.2    Design methodology and analysis                                                                                 14

3.2.1 Design considerations                                                                                                    15

3.2.2 Determination of volume and weight capacities of the units                                        16

3.2.2.1 Die/extruder                                                                                                                18

3.2.2.2 The grinding section throughput                                                                                 19

3.2.2.3 The screw press (The pelleting section) throughput                                                    19

3.2.2.4 Selection of electric motor                                                                                          20

3.2.2.5 Selection of pulleys and belts                                                                                     20

3.2.2.6 Selection of drive shafts                                                                                             23

3.2.2.7 Selection of prime mover                                                                                            27

3.2.2.8 Determination of number of belts required for each drive                                     27

3.2.2.9  Length and velocity for drying process                                                                     28

3.3   Developmental procedure                                                                                               28

3.4   Bill of engineering materials and evalution                                                                    30

CHAPTER FOUR

4.1    Results and discussion                                                                                                   33

CHAPTER FIVE

CONCLUSION AND RECOMMENDATIONS

5.1       Conclusion                                                                                                                  35

5.2       Recommendations                                                                                                      36

5.3      Contributions to knowledge                                                                                        36

REFERENCES                                                                                                                      38

LIST OF FIGURES

Fig 3.1: Design of hoppper                                                                                         16

Fig 3.2: Die/extruder                                                                                                   17

Fig 3.3: Exploded view of machine                                                                            29

Fig 3.4: Diagram of fish feed machine                                                                       29

LIST OF TABLE

Table 3.1:    Bill of quantity and labor cost

Table 3.2:    major parts and design specifications dimensions