Description
Zibo Decent Machinery Co.,Ltd (Huge Wind),as a professional tunnel ventilation expert, always stick on the principle of making tunnel excavation safer and more comfortable. Till now,we have served customers from more than 130 countries and provided fresh air and security for 150+ mine/tunnel projects.
One of our strategic partners is VALE S.A., which was established in Brazil,the largest mining company in Brazil. mainly in the field of mining area.
We received an email from VALE in 2013, wanting to purchase tunnel ventilators and air ducts for their new project. After telephone communication, we learned that the tunnel is relatively short, only 500 meters, and the diameter of the tunnel is narrow. We designed VME-5 compact tunnel fan for them. On the premise of meeting the air supply distance of 500 meters, it can be matched with a minimum 300mm air duct to meet the ventilation requirements. After only three days of communication, VALE Brazil was impressed by our positive work attitude and professional design,placed an order for 2 sets VME-5 fans and 500 meters of 300mm diameter PVC ventilation pipes.
In mid-2015, after several years of use,VALE Brazil was so satisfied with our products and invited us to join their supplier management system. Soon we received an inquiry from VALE Mozambique.
Mozambique branch of VALE found us and urgently needed us to design a 2000-meter fan for their new tunnel project. Due to the lack of necessary parameters, we designed an VME-12 fan for them through scientific calculations.
VME-12 counter-rotating jet fan, can not only meet the air supply distance of 2000 meters, but also can be matched with at least 500mm air duct to maximize the reserved space for tunnel construction. And taking into account the local noise requirements in site, we have specially made ultra-low noise treatment, using 1.5mm orifice plate inside the fan, lined with 100mm sound insulation cotton and sound insulation plate, to ensure that the noise is lower than 75dB (A).
Since 2020, VALE Mozambique has purchased 30 sets of VME-12 coal mine ventilation fans.
Decent Machinery has always believed that high-quality products and considerate services will bring greater benefits to customers.
The jet fan is suspended on the top of the tunnel, and the tunnel itself is used as the air passage. The jet fan is specially designed to generate the maximum jet power from the given power consumption. Its operation function is based on the principle of impact transmission. When it works, a part of the total air flow through the tunnel is inhaled by the fan and then spewed out at high speed by the exit. Because of the change of the airflow and the driving force of the remaining air, the energy is injected into the latter. Thus, the air in the tunnel is pushed to one end of the outlet, and fresh air is inhaled from the inlet. The concentration of carbon monoxide and the turbid air increase from the inlet point to the maximum outlet.That is, design value. Fan installation and tunnel cross section, do not occupy traffic area, no need for special ventilation building, easy installation, low cost of civil construction.| Tunnel Exhaust fan | Axial Mine fan | Tube Axial Fan |
ZIBO DECENT MACHINERY CO.,LTD offer customers a wide range of different systems of tunnel ventilation, starting from 315 up to 2.500 mm.We believe in building on the best, and therefore our Total Mine Ventilation Solution is built upon the worlds best OEM ventilation equipmentAdvantages: 1.24*7 hours online service
2.More than 100 customers visited us and felt very satisfied
3.Exported to over 130 countries
4.CE,ISO,SGS,ETA,MA,AMCA
5.Live video for the workshop by WhatsApp wechat or youtube.
6.Oversee technical support at your site
7.Better customers' experience after sales: we visit our customer each year
8.Production according to your drawing(2D/3D)
9.Famous motor brand(Siemens/ABB/TECO/WEG)
10.High standard quality control- Testing video/Testing report available
11.Welding / Materials testing report available
12.Surface Treatment: automatic electrostatic powder coating ( ie spray) or spray paint.
13.Corrosion protection and rust removal treatment
14.Tracking number for each equipment availab
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