Product Description
To meet the needs of coal mines, the mine energy-saving promotion station of the Ministry of Metallurgy invented the explosion-proof patent technology of the extraction type main fan of the coal mines. The materials used in the machine have passed the friction spark test of the Test Center of the China Coal Research Institute Chongqing Branch and achieved the explosion-proof requirements. The explosion-proof performance of the whole machine has passed the explosion-proof inspection of the China National Quality Supervision and Test Centre for Explosion-Protected Electrical Products. It introduces the FBCDZ (formerly BDK62) series of coal mine ground explosion-proof extraction-type counter-rotating axial flow ventilator, which has better performance, more specifications, and larger coverage. The product is subject to the standards of Q/ZFJ001-2004 the Technical Conditions of the FBCDZ (formerly BDK62) Series of Coal Mine Ground Explosion-proof Extraction Type Counter-rotating Axial Flow ventilator.
Characteristics
1. To meet the resistance requirements of the coal mine ventilation network and ensure the efficiency of the ventilator, the machine adopts the counter-rotating structure, that is, two sets of the same model of fans are connected, and the rotation direction of the impellers of the two machines is opposite, which can save the middle guide vane and reduce the loss of the guide vane, thus improving the efficiency.
2. The form of the direct connection between the motor and the impeller is adopted, which changes the traditional structure of the long shaft of the mine main fan or the pulley drive, avoiding damage and accidents. Theseveral-outa short of the transmission device, and also eliminates the energy loss of the transmission device and improves the efficiency of the fan device. Due to its simple structure, in addition to regularly filling fuel to the motor bearings, it generally does not require maintenance and can be operated continuously for a long time.
3. When the motor power of this series of fans is less than 200 KW, it is equipped with the YBF series with an explosion-proof type motor of the derived series of the YB series, and the voltage is 380V, 660V, or 1140V. When the power is above 200 KW, it can be equipped with a YBF series of 6000V high-voltage explosion-proof energy-saving type motor according to the needs of the mine. The motor is installed in an airtight cover in the main air duct. The airtight cover has a certain pressure resistance. It can isolate the motor from the gas contained in the fan flow passage and also has a certain effect of heat dissipation. The airtight cover is equipped with two rows of the streamlined air pipe, which are interlinked with the ground atmosphere through the main air duct so that fresh air flows into the airtight cover, and at the same time, the air in the cover can maintain a positive pressure state during the operation of the fan. Due to the use of various technical measures in the design, the motor is always working under the condition that the gas concentration is less than 1%, which meets the safety and explosion-proof requirements.
4. The highest unit of this series of fans can achieve a static pressure efficiency of 86%; the high-efficiency area is wide, and the static pressure efficiency is more than 70% of the 70% or more working area. It can ensure that the efficiency of the main fan of the mine in the three mining stages is all above 75%, which has reversed the low operation efficiency of the main fan of large mines in China and saved a large amount of electric energy.
5. A steady flow ring is installed in the main air duct; the performance curve of the fan has no hump, no surge, and it can run stably under any resistance condition. The noise is low. Most models of this product have a noise of less than 90 dB (A) without a muffler. If the user has stricter requirements on noise, the product can be equipped with a muffler when leaving the factory.
6. All the blades of this series of fans can be adjusted, which can be divided into five working angles: 45°, 40°, 35°, 30°, and 25°. The installation angles of the front and rear stages can be the same, or different, or can be adjusted to run at any angle below 45º. One of the fans can be operated separately, so the adjustable range is extremely wide. In the initial stage of production of the mine, it is ok to run only one class of the fan of it.
7. This series of fans is stable in operation and low in machine vibration. And the fans and diffusers are installed on the flatbed truck with wheels, which can run continuously for a long time.
8. The reverse wind can be reversed. In various working conditions, the reverse wind rate is all above 60%. There is no need for the reverse air duct and only a need to build a simple ventilation machine room and an electric control duty room, which can save a lot of infrastructure investment.
Detailed Photos
Product Parameters
FK series mining fan parameter table
| Fan Model |
Motor Power |
Air Volume |
Full pressure |
Dryer diameter |
Air supply distance |
Fan weight |
Dimensions |
| (kw) |
(m3/s) |
(Pa) |
(mm) |
(m) |
(kg) |
(mm) |
| |
|
|
|
|
|
D |
L |
H |
| FK58-1NO.3 |
1.5 |
0.9~1.4 |
928~575 |
300 |
80 |
51 |
390 |
486 |
230 |
| FK58-1NO.3.5 |
3 |
1.5~2.4 |
1263~752 |
350 |
150 |
74 |
450 |
562 |
260 |
| FK58-1NO.4 |
5.5 |
2.2~3.5 |
1648~1020 |
400 |
200 |
115 |
520 |
649 |
290 |
| FK58-1NO.4.5 |
11 |
3.1~5.0 |
2093~1295 |
450 |
300 |
135 |
585 |
728 |
320 |
| FK58-2NO.4 |
11 |
2.2~3.5 |
2923~1811 |
400 |
400 |
130 |
520 |
877 |
290 |
| FK55-2NO.4.5 |
11 |
3.0~5.2 |
2276~1275 |
450 |
300 |
140 |
543 |
704 |
375 |
| FK55-1NO.5 |
11 |
4.2~6.6 |
1726~1324 |
450 |
200 |
135 |
600 |
535 |
400 |
| FK56-1NO.3.15 |
2.2 |
1.4~2.1 |
853~588 |
300 |
80 |
53 |
374 |
634 |
193 |
| FK56-1NO.4 |
4 |
2.1~3.4 |
1275~981 |
400 |
150 |
96 |
477 |
682 |
240 |
| FK67-1NO.4.5 |
7.5 |
2.6~4.2 |
2256~1177 |
400 |
250 |
145 |
540 |
760 |
270 |
| FK67-2NO.4.5 |
11 |
2.8~4.3 |
3237~1471 |
400 |
400 |
195 |
540 |
860 |
270 |
| FK67-1NO.5.25 |
28 |
4.0~6.3 |
3776~2648 |
500 |
600 |
420 |
620 |
1364 |
310 |
| FK40-1NO.5.5 |
5.5 |
4.3~5.1 |
533~475 |
550 |
120 |
720 |
653 |
3800 |
336 |
| FK40-1NO.6.5 |
11 |
7.1~8.4 |
884~663 |
650 |
140 |
742 |
772 |
3800 |
396 |
| FK40-1NO.7 |
15 |
8.8~10.5 |
1025~769 |
700 |
140 |
795 |
830 |
4100 |
425 |
| FKK40-1NO.7.5 |
22 |
10.9~12.9 |
1177~883 |
750 |
150 |
824 |
890 |
4100 |
455 |
| FK40-1NO.8 |
30 |
13.2~15.6 |
1339~1005 |
800 |
150 |
848 |
950 |
4350 |
485 |
| DFK50-NO.5.5 |
2×5.5 |
4.8~5.8 |
1182~515 |
550 |
180 |
948 |
653 |
3800 |
336 |
| DFK50-NO.6.5 |
2×11 |
7.9~9.5 |
1651~719 |
650 |
200 |
1120 |
772 |
3800 |
396 |
| DFK50-NO.7 |
2×15 |
9.9~11.9 |
1915~834 |
700 |
200 |
1207 |
830 |
4100 |
425 |
| DFK50-NO.7.5 |
2×22 |
12.2~14.6 |
2198~957 |
750 |
220 |
1293 |
890 |
4100 |
455 |
| DFK50-NO.8 |
2×30 |
14.8~17.8 |
2501~1089 |
800 |
220 |
1340 |
950 |
4350 |
485 |
FBD series mining fan parameter table
| Serial no |
Machine no. |
Air volume (m3/min) |
Full pressure (Pa) |
Power (KW) |
| 1 |
4.0/6 |
150-86 |
351-1956 |
3x2 |
| 2 |
5.0/8 |
210-120 |
331-2503 |
4x2 |
| 3 |
5.0/11 |
228-132 |
371-2950 |
5.5x2 |
| 4 |
5.0/15 |
245-150 |
380-3524 |
7.5x2 |
| 5 |
5.6/15 |
274-164 |
375-3750 |
7.5x2 |
| 6 |
5.6/22 |
340-210 |
405-4418 |
11x2 |
| 7 |
5.6/30 |
395-250 |
450-4470 |
15x2 |
| 8 |
6.3/30 |
420-260 |
413-4950 |
15x2 |
| 9 |
6.3/37 |
486-292 |
513-5130 |
18.5x2 |
| 10 |
6.3/44 |
525-310 |
600-5263 |
22x2 |
| 11 |
6.3/60 |
590-390 |
760-5800 |
30x2 |
| 12 |
7.1/60 |
620-396 |
603-6450 |
30x2 |
| 13 |
7.1/74 |
672-480 |
800-6500 |
37x2 |
| 14 |
7.1/90 |
738-400 |
1100-6700 |
45x2 |
| 15 |
8.2/74 |
630-270 |
420-6900 |
37x2 |
| 16 |
8.2/90 |
654-380 |
600-7600 |
45x2 |
| 17 |
8.2/110 |
790-550 |
680-8200 |
55x2 |
| 18 |
8.2/150 |
964-546 |
700-8600 |
75x2 |
| 19 |
10.0/150 |
1170-814 |
745-2733 |
30x2 |
| 20 |
8.2/150 |
964-546 |
700-8600 |
75×2 |
| 21 |
10.0/150 |
1170-814 |
745-2733 |
30×2 |
FKZ series mining fan parameter table
| Serial no. |
Machine no. |
Air volume (m3/min) |
Full Pressure (Pa) |
Power (KW) |
| K40(FKZ)-4-№ (n=1450r/min) |
8 |
4.4~9.5 |
108~497 |
5.5 |
| 9 |
6.2~13.5 |
136~629 |
11 |
| 10 |
8.5~18.6 |
168~776 |
15 |
| 11 |
11.3~24.7 |
203~939 |
30 |
| 12 |
14.7~32.1 |
242~1118 |
37 |
| 13 |
18.7~40.8 |
284~1312 |
55 |
| 14 |
23.4~50.9 |
329~1521 |
90 |
| 15 |
28.7~62.6 |
378~1746 |
110 |
| K45(FKZ)-4-№ (n=1450r/min) |
8 |
6.6~12.5 |
357~685 |
7.5 |
| 9 |
9.5~17.8 |
452~867 |
15 |
| 10 |
13.0~24.0 |
558~1071 |
30 |
| 11 |
17.3~32.6 |
675~1295 |
45 |
| 12 |
22.5~42.3 |
804~1542 |
75 |
| 13 |
28.6~53.8 |
94.3~1810 |
90 |
| 14 |
35.7~67.2 |
1094~2099 |
132 |
| 15 |
43.9~82.6 |
1256~2409 |
200 |
| K40(FKZ)-6-№ (n=980r/min) |
7 |
2.0~4.3 |
38~174 |
1.1 |
| 8 |
3.0~6.4 |
49~227 |
2.2 |
| 9 |
4.2~9.1 |
62~287 |
3 |
| 10 |
5.8~12.5 |
77~355 |
5.5 |
| 11 |
7.7~16.7 |
93~429 |
7.5 |
| 12 |
9.9~21.7 |
111~510 |
15 |
| 13 |
12.6~27.5 |
130~599 |
18.5 |
| 14 |
15.8~34.4 |
150~695 |
30 |
| 15 |
19.4~42.3 |
173~798 |
37 |
| 16 |
23.6~51.4 |
197~908 |
55 |
| 17 |
28.3~61.6 |
222~908 |
75 |
| 18 |
33.6~73.1 |
249~1149 |
90 |
| 19 |
39.5~86.0 |
277~1280 |
110 |
| 20 |
46.0~100.3 |
307~1418 |
160 |
| 21 |
53.3~116.1 |
339~1563 |
200 |
| 22 |
61.3~113.4 |
372~1716 |
250 |
| K45(FKZ)-6-№ (n=980r/min) |
7 |
3.0~5.7 |
125~240 |
1.5 |
| 8 |
4.5~8.4 |
163~313 |
3 |
| 9 |
6.4~12.0 |
207~396 |
5.5 |
| 10 |
8.7~16.5 |
255~489 |
7.5 |
| 11 |
11.6~22.0 |
309~592 |
15 |
| 12 |
15.1~28.5 |
367~704 |
18.5 |
| 13 |
19.2~36.3 |
431~827 |
30 |
| 14 |
23.9~45.3 |
500~959 |
45 |
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