An Investigation into Separation of Impurity from Saffron Stigma Using an Electrostatic Separator

Journal Title: Journal of Agricultural Machinery - Year 2015, Vol 5, Issue 1

Abstract

In the present study, a laboratory electrostatic separator was constructed and its separation potential of white saffron impurities from stigma was investigated. The device was comprised of a nylon ribbon which moves in contact with a woolen brush and was charged by the triboelectric effect. The charged ribbon, then, moved over the material pan. Since the electrostatic behavior vary from various materials, their attraction to the ribbon differ. The separation tests were conducted at three levels of ribbon position (with 1.5, 2.5 and 3.5 cm from the material pan), three drum speeds (50, 60 and 70 rpm) and three working times (120, 18 and 240 seconds). The results showed that material absorption increased as working time increased and the ribbon distance decreased. Meanwhile, rising the speed from 50 to 60 rpm improved material absorption while, more increasing from 60 to 70 rpm reduced the absorption. A maximum impurity separation of 97% was observed with ribbon distance of 1.5 cm, ribbon speed of 60 rpm and working for 240 seconds. The minimum stigma losses were found to be about 2% when the ribbon distance and speed were 3.5 cm and 70 rpm, respectively, and the separator worked for 120 seconds.

Authors and Affiliations

H. Mortezapour,S. Moshiri Rad,M. Akhbari,

Keywords

Related Articles

Effect of turbo charger system on engine fuel consumption and tractor power and traction (ITM475, ITM485 and ITM800)

Introduction: Tractors are considered as the main power generators in mechanized agriculture. Hence, the experts and engineers in tractor manufacturing of the country, are required to focus on developing and designing ne...

Analysis of Microscopic Image Textural Features of Artichoke Leaf Extract Powder Produced from Vacuum Spray Drying

Introduction The artichoke is part of the foods from the vegetable group that provide important nutrients like vitamin A and C, potassium and fiber which used as a food and medicine. In the pharmaceutical sector, dried e...

Prediction of Soil Fragmentation During Tillage Operation Using Adaptive Neuro Fuzzy Inference System (ANFIS)

Suitable soil structure is important for crop growth. One of the main characteristics of soil structure is the size of soil aggregates. There are several ways of showing the stability of soil aggregates, among which the...

Investigation of voltage gradient and electrode type effects on processing time, energy consumption and product quality in production of Tomato Paste by ohmic heating

Introduction Thermal processing has a huge impact on the textural attribute of the final food product and texture is a major factor contributing the overall quality of food. Ohmic heating is an advanced thermal processin...

Determination of crop residues and the physical and mechanical properties of soil in different tillage systems

Introduction: Monitoring and management of soil quality is crucial for sustaining soil function in ecosystem. Tillage is one of the management operations that drastically affect soil physical quality. Conservation tillag...

Download PDF file
  • EP ID EP717744
  • DOI -
  • Views 43
  • Downloads 0

How To Cite

H. Mortezapour, S. Moshiri Rad, M. Akhbari, (2015). An Investigation into Separation of Impurity from Saffron Stigma Using an Electrostatic Separator. Journal of Agricultural Machinery, 5(1), -. https://europub.co.uk/articles/-A-717744