MILL EXHAUST FAN TYPE ВМ
Mill fan with backward curved fan blades are designed to move air and non-explosive nonaggressive dust-gas-air mixtures with temperature from -30 to + 200 ° С, dust content up to 80 g / m3. The abrasiveness of the dust contained in the transported medium and its tendency to adhere should not exceed that of coal dust. Mill fans are used in dust preparation systems for stationary steam boilers, in technological lines for the production of ferrous and nonferrous metals, etc.
Mill fan with backward curved fan blades are designed to move air and non-explosive nonaggressive dust-gas-air mixtures with temperature from -30 to + 200 ° С, dust content up to 80 g / m3. The abrasiveness of the dust contained in the transported medium and its tendency to adhere should not exceed that of coal dust. Mill fans are used in dust preparation systems for stationary steam boilers, in technological lines for the production of ferrous and nonferrous metals, etc.
The design of the mill exhaust fan contains an axial guide blade, a housing, an inlet branch pipe, an impeller, a frame, a chassis, a coupling and an electric motor. The axial guide vanes have a cylindrical body, flat segmental blades with radial axes located inside it evenly around the circumference, and a mechanism for synchronous rotation of the blades around their axes. The blades of the guide vane decrease or increase the flow area and swirl the flow of the transported medium in the direction of rotation of the impeller. This allows the aerodynamic performance of the machine to be varied and its performance to be economically adjusted. The body is spiral all-welded or split from all-welded sections. The body is manufactured with a turning angle from 0 ° to 270 °, with an interval of 15 °. The body has a round inlet and rectangular outlet with flanges. An inlet pipe is attached to the inlet branch pipe.
Model | Dimension, mm | ||||||||||||||
h | H | H1 | B | l | Lmax | A | A1 | A2 | a1 | a2 | t1 | t2 | N | N1 | |
ВМ-15 | 626 | 950 | 2300 | 2040 | 362 | 1893 | 975 | 842 | 402 | 742 | 310 | 210 | 134 | 14 | 16 |
ВМ-17 | 626 | 1050 | 2582 | 2956 | 369 | 1916 | 1105 | 942 | 442 | 842 | 350 | 235 | 147 | 14 | 16 |
— | N2 | n1 | n2 | K | K1 | K2 | C | C1 | C2 | C3 | C7 | L1 | L2 | D | D1 |
ВМ-15 | 8 | 4 | 3 | 19 | 19 | 24 | 522 | 522 | 319 | 670 | 890 | 600 | 600 | 872 | 970 |
ВМ-17 | 8 | 4 | 3 | 19 | 19 | 24 | 562 | 562 | 315 | 670 | 890 | 650 | 650 | 972 | 1070 |
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