Construction Of A Simple Size Reduction Machine
This project (Construction Of A Simple Size Reduction Machine) It was constructed locally with the use of local materials and tools in I.M.T mechanical Engineering workshop. The various parts of the equipment were constructed separately using mild steel before finally coupled.
During the construction, the conveyors and it’s housing were first constructed. It consists of a shaft with a helical rod wound round it. the hopper was measured, out and welded from a mild steel sheet of length 320mm by 60mm with a thickness of 1mm and it has the following dimensions:-
Height of the hopper – 160mm
Upper part of the hopper – 140mm diameter
Lower part of the hopper – 100mm diameter
The conveyor was fixed into it’s housing and welded to the shaft. The grinding chamber was welded separately and coupled to the grinding discs. The pressure screw fabricated was welded to the hopper. The U – channel was joined to the base stand by are welding and the existing setup, the bearing, pulley and the manual handle were all coupled. It was filed to smoothen the sharp edge and finally painted for corrosion resistance.
After the construction work, test run was carried out using the grains of wet maize and dried maize. The result shows a greater efficiency in using wet maize.
Also, the high level of noise observed during the test run was reduced by lubricating the essential parts with grease.
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PAGE
TITLE PAGE
LETTER OF TRANSMITAL
APPROVAL PAGE
DEDICATION
ACKNOWLEDGEMENT
ABSTRACT
TABLE OF CONTENTS
CHAPTER ONE
1.1 INTRODUCTION
1.2 Objective and scope of size reduction equipment.
CHAPTER TWO
LITERATURE REVIEW
2.1 Origin of size reduction
2.2 Importance of size reduction
2.3 Mechanism of size reduction
2.4 Methods of size reduction
2.5 Classification of size reduction equipment
2.6 Factors to be considered in size reduction equipment
2.7 Behaviour of particles during size reduction
2.8 Theory of crushing
2.9 Factors affecting the nature of materials to be crushed.
CHAPTER THREE
3.1 Selection of material for construction
3.12 Table of summary for the selection of materials and reason
3.2 Construction procedure
3.21 Marking out operators
3.22 Equipment used for marking out
3.3 Cutting operation
3.4 Press size requirements for cutting
3.5 Punching / drilling operation
3.6 Welding joining operation
3.7 Arc welding
3.72 Electrodes used in welding
3.73 Specification of welding electrodes
3.8 Sequence of operation
3.81 The rotating shaft and conveyor housing
3.82 Hopper
3.83 Grinding chamber
3.84 Plate gap and adjustment screw
3.85 Standing
3.86 Driven pulley / prime mover
3.87 Surface finishing and coating
3.91 Safety of the operation
3.92 Precautions
3.93 Cost evaluation
CHAPTER FOUR
4.1 Discussion
4.2 Principle of operation
4.3 Precautions
4.4 Maintenance
4.5 Recommendation
4.6 Conclusion
References
This “Construction Of A Simple Size Reduction Machine” file contains 4 Chapters, 56 Pages and 6,588 Words.
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