Introduction To The Use Of Water Well Drilling Tools

• Posted by drilling kaiqiu 6 June 2022 - Filed in Business - #Water Well Drilling Tools  #safe drilling tools  - 34 views

   

  Selection of mining tools, use and normal maintenance

  1. Choose
  1. The choice of safe drilling tools
  According to the nature of the rock, choose the appropriate cemented carbide mining bit. Generally speaking, for rock with high hardness, the drill bit supplied by alloy with relatively low hardness is selected, and vice versa, the alloy drill bit with relatively high hardness is selected. For extremely hard rock, if the power of the rock drill is high, a three-blade or cross drill bit can be used. At this time, in order to facilitate unloading, the taper hole of the drill bit can be 11° or 12°. For rocks with moderate hardness and good integrity, in order to improve work efficiency and reduce costs, ball-tooth drill bits can be selected.
  2. Selection of drill rod
  The drill rod should ensure that there is only enough mating surface with the drill bit. In general, the depth of the drill rod inserted into the drill bit should be ≥25mm, and the larger the contact surface, the better, and the minimum should not be less than 60%. Therefore, try to choose a drill rod with a taper tip machined by machining. The drill rod used in conjunction with the drill bit should be straight to the naked eye, and the impact end face of the drill tail should be flat.
  Whether it is a drill bit or a drill rod, the water hole should be kept unobstructed.
  2. Use
  When using the drill bit and Water Well Drilling Tools, firstly check whether the drill tail of the drill rod is flat, whether the taper tip and the taper hole meet the requirements, whether the cutting edge of the drill bit is damaged, whether the water hole is not unblocked, and whether the air pressure and water pressure Whether it is enough and so on, the drill bit is strictly forbidden to collide with the alloy between the drill bits. At the beginning of drilling, it should be noted that the wind must be light and light, that is, the wind pressure should be opened with a small amount of drilling, and the wind pressure can be gradually adjusted to normal after the drilling is stable. When withdrawing the drill, try to reverse the drill and avoid forcibly knocking and shaking as much as possible, so as not to damage the drill bit or the drill rod, resulting in early scrapping.