QYF15-20 mine pneumatic dredging sewage pump, QYF (Ⅰ) series of intelligent energy efficient mining pneumatic dredging sewage pump, QYF (Ⅱ) series of intelligent energy-efficient single and dual energy saving mine pneumatic dredging sewage pumps, pneumatic dredging sewage pumps, mining dredging pump, QYF mining dredging pump, coal dredging pumps, pneumatic pump dredging, dredging pump QYF Pneumatic series of intelligent energy-efficient mining pneumatic dredging sewage pump is based on the Venturi in effect theory, design and efficient vacuum generator components, to achieve the secondary use of compressed air circulation. Boot to achieve full unattended or single easy operation, greatly liberated the labor force and reduce production costs. Very suitable for coal slurries, oil-based mud, concrete waste, municipal sewage, bauxite mud, river dredging and other fields. Dredging equipment to use more conventional electric or internal combustion engine driven, moving parts and are in direct contact with the waste clean-up media, badly worn, high failure rate, life expectancy is low, not only gives users a lot of equipment maintenance, updates and other materials, and the overall result inefficiency. And I developed dredging sewage pumps, mining industry often uses compressed air as a driving force in the no-load and overload the unit is running on the device without any damage. At the same time there is no tradition of similar equipment in the device work rotating impeller. Turn parts, moving parts, and the transportation of materials completely separated, so that the device has a solid through strong, stable operation and high efficiency, greatly reducing the maintenance cost of the equipment; and that the device is moved flexible, extremely wide range of transmission media, you can achieve a multi-use functions, saving the user a lot of cost and manpower. Advantages and features over dirt ability, can be pumped with a high solids content of the material flow; compact unit structure, cleverly designed, can achieve automatic operation; a load or overload without damage to the equipment, maintenance is simple; low energy consumption, energy saving and environmental protection . Pure pneumatic products, without any electronic devices, safe and reliable; no moving parts in contact with the material, no wear, stable, long life; small size, light weight, mobile and flexible, easy to operate, for a wide range; product conditions a) by suction dredging pump intake pipe submerged; b) the transmission medium temperature does not exceed 40 ℃; c) Operating ambient temperature (5-40 ℃); PH d) ??the transmission medium within the range of 4-10; e) The maximum diameter of the solid particles is not more than 20mm; f) applies pressure range 0.60Mpa-0.70Mpa.