Table 4 The number of coal particles in regions A, B, C, and D.

From: Numerical simulation of coal particle motion characteristics in the envelope region of spiral drum based on discrete element method

Traction speed/m min−1

Number of coal particles

Region A

Region B

Region C

Region D

4

40

51

56

45

5

56

67

69

57

6

87

85

81

66

7

114

112

108

78

8

151

139

134

94

9

168

158

147

104

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