The drill pipe manufacturer reminds you of the correct way of drilling

2019-12-02 17:29:05

After so many years in the coal industry, can you drill properly with the drill pipe, let's see if you do it right?

Drill pipe manufacturer reminds you of the correct drilling method (figure 1)

1. After the normal emptying operation, install the drill pipe and align it to the borehole position so that the fixture can proceed slowly. When the bit comes into contact with the position to be drilled, open the water valve slightly to allow a small amount of flushing water to flow out. Rotate the rotary hand guide block to the appropriate opening as far as possible to rotate the output shaft at a low speed. Turn the flow control valve to the smaller opening and then pull the manual guide block of the fixture to the push cylinder position. When the bit is effectively positioned and drilled a few centimeters, the water valve is then opened to the appropriate opening. At the same time, rotate the rotary manual guide block to the maximum open position, and the drill can enter normal operation.

2. In the process of drilling, if the drilling resistance is too great in the hard rock roadway, the forward speed of the fixed device can be controlled by the flow control valve to reduce the forward speed and avoid getting stuck and affecting the normal. Operate when the thrust is too high.