DTH drill pipe is a commonly used rock drilling equipment, which is mainly composed of a slewing mechanism, a lifting mechanism, a pushing mechanism, a supporting mechanism, and an impact mechanism. It has the characteristics of fast rock drilling speed and convenient operation. The usage rules of the DTH drill pipe are as follows:
(1) Installation and preparation of DTH drill pipe
1. Prepare the rock-drilling cavern. The specifications of the cavern can be determined according to the drilling method. Generally, the height of the cavern is 2.6-2.8 meters when the horizontal hole is drilled, and the width of the cavern when the upward, downward, or inclined hole is drilled. It is 2.5 meters and the height is 2.8-3 meters.
2. Lead the gas and water pipelines, lighting lines, etc. to near the working surface for later use.
3. According to the requirements of the hole design, erect the pillars firmly. The upper and lower ends of the pillar should be padded with wooden boards, the horizontal shaft and the snap ring are installed on the pillar according to a certain height and direction, the machine is lifted by a hand winch, fixed on the pillar at the required angle, and then the hole of the drill is adjusted Towards.
(2) Inspection before the operation
1. When starting to work, carefully check whether the gas and water pipelines are firmly connected and whether there is any leakage of air or water.
2. Check whether the lubricator has been filled with oil.
3. Check whether the screws, nuts, joints, etc. of each part have been tightened and whether the uprights are really strong.
(three) drilling procedure
When opening the hole, start the motor first, and pull the push handle of the manipulator after the transfer is normal. Make it get proper propulsion, and then pull the handle that controls the impactor to the working position. After rock drilling, you can open the water valve to keep the gas-water mixture at a proper ratio. Perform normal rock drilling work. When the advancing work moves the rod loader to collide with the braze holder, it is to finish drilling a drill rod. It is necessary to stop the operation of the motor and stop the air and water supply to the impactor, insert the fork into the drill pipe slot of the drill holder, make the motor reverse slide plate back, and disconnect the joint from the drill pipe, and then connect a drill pipe, press This cycle works continuously.