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防汛泵-排水泵-排涝泵

双吸泵从原理上讲属于离心泵。从概念上讲指经过借助向心力（泵的叶轮的旋转）的作用使固、液混合介质能量增加的一种机械，将电能转换成介质的动能和势能的设备。
　　双吸泵是矿山选矿必备动力设备，其主要作用是保送矿浆，因而其磨损失效速度较快。
　　双吸泵是从保送介质的角度对泵的另外一种方式的划分。望文生义，双吸泵保送的是含有渣滓的固体颗粒与水的混合物。
　　双吸泵外表处置：对需处置的工件停止补焊、脱脂处置、喷砂除锈。
　　脱脂、除潮处置：去除工件外表的油脂，以棉纱擦拭工件外表，棉纱无油渍、水渍。用氧气乙炔将火焰调整到10CM长，以5cm/min的速度，使火焰重复平均烘烤工件外表，去除工件外表的油脂和潮气。
　　喷砂除锈：去除工件外表的氧化层，目视检查，喷砂面可见平均的金属本性。喷砂处置完的工件不允许用带油脂手套直接接触喷砂面，喷砂处置后工件要留意防潮。


Double suction pump belongs to centrifugal pump in principle. Conceptually speaking, it refers to a kind of machinery that increases the energy of solid-liquid mixed medium by means of centripetal force (rotation of impeller of pump), and converts electric energy into kinetic energy and potential energy of medium.
Double suction pump is a necessary power equipment for mineral processing in mines. Its main function is to transport pulp, so its wear failure speed is faster.
Double suction pump is another way to divide the pump from the perspective of recommended medium. Literally, the double suction pump delivers a mixture of solid particles containing waste and water.
Surface treatment of double suction pump: stop repair welding, degreasing and sand blasting for the workpiece to be treated.
Degreasing and dehumidification treatment: remove the grease on the surface of the workpiece, wipe the surface of the workpiece with cotton yarn, and the cotton yarn is free of oil and water stains. Adjust the flame length to 10cm with oxygen acetylene, and bake the surface of the workpiece repeatedly at the speed of 5cm / min to remove the grease and moisture on the surface of the workpiece.
Sand blasting derusting: remove the oxide layer on the surface of the workpiece, and conduct visual inspection. The average metal nature can be seen on the sand blasting surface. It is not allowed to use grease gloves to directly contact the sandblasting surface of the workpiece after sandblasting. After sandblasting, the workpiece should pay attention to moisture-proof.

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