To Construct a Typical Areca Nut Dehusking Machine and Analysis on 4 Types of Areca Nuts Available in the Bangladesh Market
Author : Anwar Kamal, Dr. Eng. Hosne Ara Begum and Dr. Eng. Abu Bakr Siddique
Abstract :
The economy of Bangladesh is improving at a remarkable speed and by 2030 it is expected that Bangladesh will have the 24th largest economy of the world. The Textile Industry is the key to have the 7.1% increase in GDP. But in this sector, in maximum cases, machineries are imported from different countries that costs huge amount. In many other sectors like auto-mobiles, electronics, mobile phones etc. at least assembling is being done. Therefore now it needs to develop manufacturing of machines by intellectual effort and money. Natural fiber is now a prospective research product for its successful utilization in composites. Among them Areca nut is a rising composite material which is applied at automobile, aerospace and construction engineering. Here an attempt has been originated to make an areca nut dehusking machine as a commencement of that journey of becoming self-contained in propagating manufacturing of textile machines. Initially the idea has been procreated from the carding machine. A main cylinder is dispensed which is grounded with sharp spikes. Two separate rollers are used as workers. These two rollers are also wired with sharp spikes. Two electrical motors are employed to supply power to the rollers. Some belts or chain drives are also used to decrease the number of individual motor. The cylinder is moving at a high speed of rpm i.e. 266 rpm, therefore it takes out the husk from the fruit. A conveyer belt is used in the feeding system to supply the nuts continuously between the cylinder and 1st roller. At the delivery system, a delivery sheet is kept at an inclined angle and a vibration is embarked for smooth delivery. Finally four types of available nuts are deployed available in the market to observe the performance of the machine. A good production (1636 nuts/hr) is achieved by this new machine. Manufacturing cost is also found less than the others recently made in the world.
Keywords :
Areca nut, dehusking machine, roller & cylinder, production
