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Main fan for coal mine

  • FBCD Mine Withdrawable Explosion-proof Fan
FBCD Mine Withdrawable Explosion-proof Fan

FBCD Mine Withdrawable Explosion-proof Fan

  • Mine main fan
  • Mine explosion-proof fan
  • Press-in explosion-proof fan
  • Withdrawable explosion-proof fan
  • Product description: The ventilator is suitable for extractive local ventilation in the environment containing explosive substances (gas and coal dust) in coal mines, which can meet the needs of mine ventilation network and safety production. Extraction of local gas accumulation in underground mines or combined use with dust removal equipment to remove working flour dust and change the working environment. It is an ideal equipment for extraction local ventilation.
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Overview:
1. The FBCD series of mine explosion-proof withdrawable counter-rotating axial flow local fan is a new product developed and produced by Shandong Jinhe Fan Co., Ltd. on the basis of summing up the existing domestic counter-rotating axial flow local fan structure and technical performance. Generation of local fans with a wide range of uses. The ventilator is mainly used for extraction and extraction ventilation of large and small section roadways under coal mines. The fan has the characteristics of reasonable structure, high efficiency and low noise.
2. The gas temperature of the FBCD series mine explosion-proof withdrawable rotary axial flow local fan is -20 ℃ ~ + 40 ℃, the relative humidity is not more than 95% (at 25 ℃), and the altitude should not exceed 1000m. The medium conveyed by the ventilator is allowed to contain methane and explosive gas, and the dust content of the passing gas shall not exceed 200mg / m3. This ventilator is mainly used in coal mines with the danger of explosive methane gas. It is installed in the return airway and is used in conjunction with negative pressure air cylinders for extraction ventilation.
Features:
1. FBCD series explosion-proof withdrawable anti-rotating axial flow local fan is composed of two working hosts, and the two-stage impeller rotates in the opposite direction. That is, the first stage impeller rotates clockwise, the second stage impeller rotates counterclockwise, and the number of blades of the two stages is prime. The air is obtained from the energy of the first-stage impeller and then sent out after being supercharged by the second-stage impeller. In addition to increasing the airflow energy, the secondary impeller also has the function of static guide vanes in ordinary axial flow fans. While obtaining the straight velocity component in the circumferential direction, it straightens the airflow impact, increases the airflow energy, and reduces the wake vortex. To reduce noise.
2. The blades of the FBCD series explosion-proof withdrawable counter-rotating axial flow local ventilator are designed with aerodynamic performance using domestic advanced ternary flow theory. The blades are wing-shaped arc plate twisted blades, with high aerodynamic efficiency and efficiency The area is wide and the energy saving effect is remarkable. In addition, the airflow can pass through the fan at high speed and stability to ensure the safe operation of the fan.
3. The FBCD series of mine explosion-proof withdrawing anti-rotational axial flow local ventilator adopts outsourced double-type muffler, which has ultra-low noise characteristics and has a significant effect on changing the noise environment of the confined space under the well.
4. The FBCD series of mine explosion-proof withdrawable counter-rotating axial flow local ventilator adopts partition cavity explosion-proof technology. The baffle cavity has a certain pressure resistance performance, which ensures that the motor and the gas flowing from the fan to the gas containing medium are isolated from each other, and at the same time, it plays a role of heat dissipation and flow guidance of the motor. The heat pipe communicates with the atmosphere around the motor, which not only increases the explosion-proof performance of the motor, but also fully dissipates the heat of the motor to the atmosphere.
5. The main body of FBCD series explosion-proof withdrawable anti-rotating axial flow local fan adopts the steel plate assembly structure, and the blade and the inside of the casing adopt anti-corrosion and moisture-proof treatment, which enables the fan to run for a long time in a humid environment, effectively solving other conditions Problems that cause corrosion to fans.


6. The impeller blades and protective rings of FBCD series explosion-proof withdrawable counter-rotating axial flow local fans are paired with H62 brass and Q235 carbon steel and passed the National Chongqing Coal Mine Dustproof Fan Safety Product Quality Supervision and Inspection Center The spark friction test solves the hidden danger of fire or explosion caused by running impact of the blade in explosive gas.


The mine needs the latest energy-saving local ventilators developed and produced by the need to discharge gas and dirty air (gas concentration not exceeding 3%). This series of fans have the characteristics of compact structure, low noise, high wind pressure, large flow and high efficiency. According to different ventilation requirements, it can be used in both counter-rotating and stand-alone modes. When using counter-rotating ventilation, the ventilation distance can be increased; when the ventilation distance is short, a single machine can be used with the same air volume, thereby reducing energy consumption and saving energy. Its compact structure is convenient for transportation and installation in engineering construction. Its form is mine explosion-proof, counter-rotating, with silencer, withdrawable local fan ventilator.
Main uses and scope of application
This ventilator is suitable for extraction local ventilation in the environment containing explosive substances (gas and coal dust) in coal mines, which can meet the needs of mine ventilation network and safety production. Extraction of local gas accumulation in underground wells or combined use with dust removal equipment to remove working dust and change the working environment is an ideal equipment for extraction local ventilation.
Aerodynamic performance parameters of FBCD series draw-out rotary fan

sequence
number
Machine number
(№)
power
(KW)
Air volume
(M3 / s)
Static pressure
(Pa)
Voltage
(V)
Maximum static pressure efficiency
(%)
noise
LSA
(dB)
Dimensions
Width × length × height
1
4.0 / 2 × 2.2
2.2
136-72
241-2021
380/660
660/1140
≥60
≤25
510 × 1700 × 690
2
4.0 / 2 × 3.0
3
115-86
246-2126
≥60
≤25
510 × 1700 × 690
3
5.0 / 2 × 4
4
174-102
251-2203
≥60
≤25
630 × 2103 × 860
4
5.0 / × 5.5
5.5
200-120
220-2720
≥60
≤25
630 × 2103 × 860
5
5.0 / 2 × 5.5
5.5
200-120
220-2720
(Moisture proof) side outlet
860 × 1600 × 630
5
5.0 / 2 × 7.5
7.5
245-155
320-3130
≥60
≤25
630 × 2103 × 860
6
5.6 / 2 × 7.5
7.5
270-124
354-3565
≥65
≤25
676 × 2300 × 950
7
5.6 / 2 × 11
11
310-186
350-3850
≥65
≤25
676 × 2300 × 950
8
5.6 / 2 × 15
15
395-350
400-4100
≥65
≤25
676 × 2300 × 950
9
6.3 / 2 × 15
15
420-240
350-4600
≥65
≤25
760 × 2780 × 1050
10
6.3 / 2 × 18.5
18.5
456-236
359-4810
≥65
≤25
760 × 2840 × 1050
11
6.3 / 2 × 22
twenty two
510-310
400-4900
≥65
≤25
760 × 2840 × 1050
12
6.3 / 2 × 30
30
600-260
688-5246
≥65
≤25
760 × 2840 × 1050
13
7.1 / 2 × 30
30
590-370
720-5738
≥65
≤25
930 × 2720 × 1180
14
7.1 / 2 × 37
37
640-385
733-5990
≥65
≤25
930 × 2720 × 1180
15
7.1 / 2 × 45
45
695-390
744-6200
≥65
≤25
930 × 2720 × 1180
16
8.0 / 2 × 37
37
655-342
710-6500
≥65
≤25
1030 × 3000 × 1280
17
8.0 / 2 × 45
45
740-360
760-7030
≥65
≤25
1030 × 3000 × 1280
18
8.0 / 2 × 55
55
840-380
820-7375
≥65
≤25
1030 × 3000 × 1280


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