| metering place |
combine type |
Average of air dust, mg / m³ |
| Without wetting agent |
Using of wetting agent №1 |
Using of wetting agent №2 |
Using of wetting agent №3 |
Using of wetting agent №1«Elfor-M» |
| Coal bed Boldirevskiy (longwall 24-56) |
| by the side of combine's driver |
JOY7LS-20 |
116,6 |
79,2 |
70,8 |
68,7 |
83,2 |
| Efficiency, % |
|
32,1 |
39,3 |
41,1 |
28,6 |
| 10-15 m. on the part of combine |
JOY7LS-20 |
91,4 |
64,0 |
61,1 |
59,0 |
66,7 |
| Efficiency, % |
|
30,0 |
33,1 |
35,5 |
27,0 |
| by the side of driver's lining |
JOY7LS-20 |
95,7 |
72,9 |
67,7 |
64,9 |
78,4 |
| Efficiency, % |
|
23,9 |
29,3 |
32,3 |
18,1 |
| Coal bed Polenovskiy (coal-face SH-57 n.p.) |
| by the side of combine's driver |
JOY 12СM-15 |
118,6 |
72,9 |
65,7 |
57,9 |
77,6 |
| Efficiency, % |
|
38,5 |
44,6 |
51,2 |
34,6 |
| 10-15 m. on the part of combine |
JOY 12СM-15 |
91,7 |
53,0 |
50,8 |
46,1 |
58,3 |
| Efficiency, % |
|
42,1 |
44,6 |
49,7 |
36,4 |
| by the side of driver's lining |
JOY 12СM-15 |
120,1 |
64,2 |
61,5 |
53,3 |
69,8 |
| Efficiency, % |
|
46,5 |
48,8 |
55,6 |
41,9 |
