1. Pneumatic water well drilling rig blows holes


Experiments show that when the gas drill is drilling normally, check the discharge of cuttings and cuttings at the orifice and the footage. When the powder output and the footage are normal, there is no need to lift the drill bit.

 

If only the footage is normal, the drilling tool should be lifted once after a certain footage has been drilled by the water well drilling rig (the impactor is not working at this time) to generate a larger upper return wind speed. After the cuttings and cuttings are blown out of the hole, the drill will be drilled. Place the tool at the bottom of the hole to continue drilling.

 

At this time, the drilling tool can be lifted, and the larger falling block can be blown out of the orifice, and the falling block with a mass of 510g can be blown out. In short, the bottom of the hole of the water well drilling rig should be kept clean.

 

  1. The wind pressure of the pneumatic water pump suddenly changes


Tapered Bit should always check the pressure change of the air pressure gauge when drilling. When the wind pressure suddenly increases, it is difficult to lift the drill at the same time. It may be that the upper part of the down-the-hole hammer forms mud or drills.

 

If the rated working pressure of the air compressor can blow away the upper obstruction while the drilling tool is traveling, the water well drilling rig can continue drilling. If it is invalid, you can inject water to dilute the mud from the orifice and blow out the orifice, or inject a certain foaming agent from the drill pipe to dilute and purge.

 

When connecting a single drill pipe, air supply starts after connecting the movable drill pipe. After the bottom of the hole of the water well drilling rig is blown clean, the drilling can be continued. Do not lower the down-the-hole hammer to the bottom of the hole before supplying air. In this way, drill cuttings can easily form infarcts in the DTH hammer.

 

  1. After drilling a drill pipe with a pneumatic water pump, don't stop the gas in a hurry


After blowing the holes for 1-2 minutes, lift the movable drill rod to the front and stop the air supply.

 

  1. When the pneumatic water pump DTH hammer is working, it must be filled with oil frequently


When connecting the Drill pipe, add oil in time to prevent the loss of the piston and cylinder liner.