CONSTRUCTION OF A JUICE EXTRACTOR MACHINE. A RESEARCH PROJECT TOPICS ON CHEMICAL ENGINEERING

        A Juice extractor machine is a device that is used to extract liquid (Juice) from fruits and vegetables in a process called juicing.

The machine is constructed manually with the use of local materials and tools.  The material used for the construction of the machine is mild steel sheet. During the construction of the machine, the various parts of it were constructed separately using the mild steel sheet before finally coupled.  It is constructed in a way that when the handle is moved the fruits are crushed to give juice.

The fabrication of the machine start with transferring of the information contained in the engineering drawing on the blank material from which the part is to be produced.  The engineering drawing are presented on paper with the use of pencil and meter rule while marking out involves drawing of lines on a metal surface with the use of scriber, meter rule etc to indicate the profile or outline of the finished components.

Manually operated juice extractor machine was an outstanding low cost, easy to maintain.  It is also easy to operate and good efficiency for small scale production.  The machine encourage students to be self employed and reliant.  It was discovered that the manual juice machine help for easy transportation of materials, easy separation of impurities through mechanical process, easy formation of solution through extraction etc.

Due to the fact that the machine is constructed manually with local material, it is not up to standard.  That is to say that it may not be durable since juice is liquid in nature, it has a good amount of moisture in it, which would enhance the corrosion of the mild steel frame. And once corrosion takes place it will lead to weakness of the machine.

In fact, the manual juice extractor is at low cost and easy to operate.  It is not as costly as that of electric juice extractor.  It cost us only twenty-three thousand naira (N23,000).  It is the cheapest equipment used to start up a small-scale production.

CHAPTER ONE

1.0          INTRODUCTION

1.1    BACKGROUND OF THE STUDY

Fruit have been cultivated for the last 2000 years in Southern China and South-East Asia, one variety the citron and south-east was carried to the middle east sometime between 400 and 600 BC. Arab traders transported different kinds of fruit like orange to eastern Africa and the Middle East sometime between 100 and 700 AD and during the Arab occupation of Spain, Citrus fruits first arrived in southern Europe from there they were carried to the new world by explores where they spread to fluoride and Brazil (By the sixteenth century by 1800 citrus fruits achieved world wide distribution). In the 1890s, the demand for them greatly increased because physicians discovered that drinking the juice of organs or other citrus fruit could prevent survey, A vitamin deficiency disease.

The popularity of orange juice dramatically increased again with the development of the commercial orange juice industry in the late 1920. In its early day, the juice industry primary relied on salvased fruit, which was unstable for regular consumption because it was badly colored in 1944 scientist found a way to concentrate fruit juice in a vacuum and freeze it with destroying the flavour or vitamin content.