Table 8 Number of 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

Rotation speed/r min−1

Number of coal particles

Region A

Region B

Region C

Region D

38

64

68

64

66

48

45

52

53

54

58

40

51

56

46

68

30

49

49

43

78

37

52

49

33

88

36

48

45

31

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