Table 9 Orthogonal experiment results.

From: Optimization and experimental analysis of a cleaning device for super rice with high impurity rates based on airflow field enhancement

 

j

i

Pre-sieve airflow

Yi

Rear sieve airflow

Ki

Cross-sectional

airflow uniformity Ti

A

Fan speed

B

Inclination angle of

the first guide plate

C

Opening degree of

the fish-scale sieve

D

Inclination angle of

the second guide plate

 

1

1

1

1

1

3.59

0.83

0.612

2

1

2

4

2

3.31

1.07

0.482

3

2

3

2

2

3.32

1.17

0.325

4

2

4

3

1

3.48

1.16

0.421

5

3

3

3

2

4.43

1.51

0.531

6

3

4

2

1

4.68

1.54

0.345

7

4

1

4

1

3.05

0.91

0.387

8

4

2

1

2

2.95

1.16

0.361

Cross-sectional airflow

uniformity indicator

Tj1

1.10

1.00

0.97

1.77

 

Tj2

0.75

0.84

0.67

1.70

Tj3

0.88

0.86

0.95

 

Tj4

0.75

0.77

0.87

Rj

0.35

0.23

0.30

0.07

R’

0.22

0.15

0.19

0.09

Optimal parameter

combination

ACBD A2C2B4D2

Pre-sieve airflow

indicator

Yj1

6.9

6.64

6.54

14.8

Yj2

6.8

6.26

8

14.01

Yj3

9.11

7.75

7.91

 

Yj4

6

8.16

6.36

Rj

3.11

1.9

1.64

0.79

R’

1.98

1.21

1.06

1.12

Optimal parameter

combination

ABDC A3B4D1C2

Rear sieve airflow

indicator

Kj1

1.9

1.74

1.99

4.44

Kj2

2.33

2.23

2.71

4.91

Kj3

3.05

2.68

2.67

 

Kj4

2.07

2.7

1.98

Rj

1.15

0.96

0.73

0.47

R’

0.73

0.61

0.47

0.67

Optimal parameter

combination

ADBC A3D2B4C2

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