NEWS

27

2021-05

Shendong Bulianta Coal Mine's self-made pneumatic fan ensures ventilation underground

Recently, the ventilation team of Shen Dong Coal Group's Bulianta Coal Mine utilized the principle of pneumatic power, using pneumatic fans as air guiding devices to supply air to the long-distance water chamber underground. This not only eliminated the safety hazards caused by working in a light breeze or no wind but also improved the efficiency of air supply, ensuring safe production underground. When the length of the water chamber in the coal mine exceeds 6 meters, there may be a buildup of some toxic and harmful gases inside, necessitating the installation of air guiding devices for ventilation. However, traditional air ducts are not very effective and cannot completely eliminate toxic and harmful gases. Traditional local fans, being electrically driven, pose inconveniences for extensive use underground. To effectively address this issue, the ventilation team of the mine combined the existing pneumatic power underground.

2021-05-27

27

2021-05

2013 Asia International Wind Turbine Industry Exhibition

Event Start Date: November 18, 2013 End Date: November 20, 2013 Venue: Shanghai World Expo Exhibition Center Organizer: China Machinery Industry Federation Event Introduction: As science and technology continue to develop, the demands for fan usage are also increasing. In terms of the current trends in foreign fan technology development, it will evolve towards larger capacity, higher efficiency, high-speed miniaturization, and lower noise; there is vast potential for development. In the face of increasingly fierce competition in the international market, companies must continuously absorb new knowledge and technology, appropriately adjust their product marketing concepts, and adapt to current conditions.

2021-05-27

27

2021-05

A Brief Discussion on the Practical Impact of FRP Fans in Ventilation

The governance plan consists of two main systems: exhaust and supply air. (1) Exhaust system. Due to the large three-dimensional space of the workshop and the lack of partition walls with the ore dressing workshop, if unified extraction is considered, with a minimum ventilation rate of 8 times/h for the workshop, an exhaust volume of 130,000 m3/h would be required. This not only involves high investment but also high energy consumption. Based on the actual situation, a main exhaust duct is designed to be placed in the upper space where the sources of exhaust pollution are concentrated; a fume hood is used above the dosing tank to collect exhaust gases, and movable guide plates are left at the dosing and maintenance areas for the tank. The exhaust gas is controlled by a butterfly valve through the hood body, entering the main exhaust duct along the branch pipe; the slurry discharge trough is uniformly covered with movable fiberglass panels, and the cover panel on top.

2021-05-27

27

2021-05

The technology level of the wind turbine industry in our country urgently needs to be upgraded.

On October 16, 2013, the Beijing International Wind Energy Conference and Exhibition was held in Beijing. The theme of this conference is quality and health. It is understood that China currently ranks first in the world in terms of cumulative wind power installed capacity, with an additional 12.96 million kilowatts of wind power installed in 2012, bringing the total installed capacity to 75.32 million kilowatts, and 62.30 million kilowatts connected to the grid, generating 100.4 billion kilowatt-hours annually. Wind power has become the third largest power source in our country. However, with the development of wind power, the quality issues of wind turbines have repeatedly emerged. Wang Jun, director of the New Energy and Renewable Energy Department of the National Energy Administration, stated at the conference that quality and health are the foundation for the development of the wind power industry. Currently,

2021-05-27

12

2021-08

The classification of mixed flow fans, axial flow fans, and centrifugal fans is based on the movement of airflow in the fans.

2021-08-12

12

2021-08

How to deal with the loud noise of axial flow fans?

2021-08-12

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