Positive displacement blower fan, who between air volume delivered and the number of revolutions is proportional to the impeller end and front cover and fan impeller fan always keep a slight gap, driven by the timing gears of wind from the fan housing inlet rim transporting the body to the side wall of the discharge. Here are some of its requirements: 1, the transmission medium inlet temperature is not higher than 40 ℃. 2, the transmission medium particle content of not more than 100mg / m3, maximum particle size must not exceed the minimum work space was half. 3, use may not get ratings boost boost value exceeds a predetermined signage. 4, the temperature should not be higher than the bearing portion 95 ℃. 5, the fuel tank with ordinary oil lubrication, oil temperature should not be higher than 65 ℃. 6, conveying powder blower when boost △ P ≥ 49kPa must be used to cool water. Roots blower which can transport gas transport body 1. The most frequently: air. During this fan, the situation they air transportation is the most common situation, in industrial plants, agricultural base, etc. blower, are based on replacement of the air space within the main way of working. They are also for workers or indoor environment, have a great advantage purification. 2, Other transport body: for example gas, carbon dioxide. Roots blower transport the gas, except for air, the gas is the main transport such gas blower delivery particles, such as carbon dioxide, which are used in the coal industry, mining industry or the mining industry is also more. Worthy of our attention is the power plant dust blower, when they work, we must ensure the integrity of gas delivery to ensure the smooth progress of the project. Beijing Roots blower, Zhucheng East Han Machinery Co., conveying powder blower is provided by Han Machinery Co., Ltd. Zhucheng East. Beijing Roots blower, Zhucheng East Han Machinery Co., conveying powder blower is Zhucheng East Han Machinery Co., Ltd. (www.dhlcfj.com) (www.dhlcfj.com) this year introduced a new upgrade, the above picture is for reference, please call Tel picture on this page or to obtain the latest information, contact: Mr. Wang.