Abstract
The number of occurrences of foreign objects in food is becoming less frequent. However, it is very difficult to remove small foreign objects such as hair and soft plastics in food. In this paper, the results of an experimental study of the performance of a new electrostatic separator of small foreign objects in dried food are presented. The separator consists of an inclined rotating drum, which is grounded, a cylindrical electrode fixed at the center of the drum and a suction device. The principle of the separation is based on the difference in the charge per unit mass of the dried food and foreign objects. Separation tests were performed on two types of mixtures. The effects of operating parameters, such as the applied voltage and the angular speed of the drum, on the separation efficiency were examined. In the separation of a mixture of plastic fragments and dried lettuce, the recovery rate of the lettuce was greater than 96% for a purity of 100%. In the separation of a mixture of hairs and dried lettuce, the recovery rate of the lettuce was greater than 94% for a purity of 100%.
| Original language | English |
|---|---|
| Pages (from-to) | 61-69 |
| Number of pages | 9 |
| Journal | Japan Journal of Food Engineering |
| Volume | 18 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - 2017 Mar 1 |
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Keywords
- Corona charging
- Electric field strength
- Electrostatic separation
- Image force
ASJC Scopus subject areas
- Food Science
- Industrial and Manufacturing Engineering
Cite this
Development of electrostatic separator of foreign objects in dried foods. / Suzuki, Masumi; Iwase, Shun; Koike, Yoshitaka; Saeki, Masato.
In: Japan Journal of Food Engineering, Vol. 18, No. 1, 01.03.2017, p. 61-69.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Development of electrostatic separator of foreign objects in dried foods
AU - Suzuki, Masumi
AU - Iwase, Shun
AU - Koike, Yoshitaka
AU - Saeki, Masato
PY - 2017/3/1
Y1 - 2017/3/1
N2 - The number of occurrences of foreign objects in food is becoming less frequent. However, it is very difficult to remove small foreign objects such as hair and soft plastics in food. In this paper, the results of an experimental study of the performance of a new electrostatic separator of small foreign objects in dried food are presented. The separator consists of an inclined rotating drum, which is grounded, a cylindrical electrode fixed at the center of the drum and a suction device. The principle of the separation is based on the difference in the charge per unit mass of the dried food and foreign objects. Separation tests were performed on two types of mixtures. The effects of operating parameters, such as the applied voltage and the angular speed of the drum, on the separation efficiency were examined. In the separation of a mixture of plastic fragments and dried lettuce, the recovery rate of the lettuce was greater than 96% for a purity of 100%. In the separation of a mixture of hairs and dried lettuce, the recovery rate of the lettuce was greater than 94% for a purity of 100%.
AB - The number of occurrences of foreign objects in food is becoming less frequent. However, it is very difficult to remove small foreign objects such as hair and soft plastics in food. In this paper, the results of an experimental study of the performance of a new electrostatic separator of small foreign objects in dried food are presented. The separator consists of an inclined rotating drum, which is grounded, a cylindrical electrode fixed at the center of the drum and a suction device. The principle of the separation is based on the difference in the charge per unit mass of the dried food and foreign objects. Separation tests were performed on two types of mixtures. The effects of operating parameters, such as the applied voltage and the angular speed of the drum, on the separation efficiency were examined. In the separation of a mixture of plastic fragments and dried lettuce, the recovery rate of the lettuce was greater than 96% for a purity of 100%. In the separation of a mixture of hairs and dried lettuce, the recovery rate of the lettuce was greater than 94% for a purity of 100%.
KW - Corona charging
KW - Electric field strength
KW - Electrostatic separation
KW - Image force
UR - http://www.scopus.com/inward/record.url?scp=85045103614&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85045103614&partnerID=8YFLogxK
U2 - 10.11301/jsfe.16482
DO - 10.11301/jsfe.16482
M3 - Article
VL - 18
SP - 61
EP - 69
JO - Japan Journal of Food Engineering
JF - Japan Journal of Food Engineering
SN - 1345-7942
IS - 1
ER -