Under the coal mine drainage with multistage pump installation considerations

Coal mine drainage with multistage pump before installation should review the levels of elevation and bolt hole size, location, location, meets the design requirements, the equipment should not be missing parts, damage and corrosion, and so on and so forth, nozzle to protect objects and blocking cover should be in good condition; Barring should be flexible, no block, jam phenomenon, no abnormal sound, water pump installation shall be carried out after the concrete strength to meet the design requirements. Under the coal mine drainage with multistage water pump installation note:

1. Under the condition of geographical environment permits, the water pump should be close to water, as far as possible to reduce the length of the suction pipe. Water pump installation of foundation should be strong, on the basis of stationary pump station shall be specially.

       2. Suction culvert should be reliable sealing, must have a dedicated support, not hanging on the pump. With the progress of the bottom valve pipe, should try to make the bottom valve axis and the vertical plane of the installation, its axis and the horizontal plane Angle should not be less than 45 °. Channels for water, bottom valve should be higher than the bottom 0. Above 50 meters, and screening to prevent debris into the pump.

       3. Machine, pump base should be level, with the base of the connection should be strong. Machine, pump belt transmission, the belt tension side, high transmission efficiency, so the pump impeller towards should be consistent with the direction of the arrow; Using coupling transmission, machine and pump must be coaxial line.

       4. installation position should meet the requirements of allow the vacuum suction height, base must be level, solid, direction of rotation of the mechanical power to the rotating direction of pump designed.

       5. If the same room with multiple units, between unit and unit, unit and should have more than 800 mm distance between the wall.

       6. suction pipe must be properly sealed and minimize the elbow and gate valve, filling water diversion should be no air, when the runtime tube should not belong to the accumulation of air, require micro is oblique with the pump suction inlet connection, submerged depth of the inlet due and certain.

This is an internationally recognized standard which acts as a form of guarantee that everything J&T INDUSTRY CO.,LTD. does is managed to the highest quality standards.
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