DTH drill in use should pay attention to what matters?

Release time:

2019-01-16

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In order to use the down-the-hole drill correctly and ensure the drilling speed and service life of the drill bit, the following points must be paid attention to: 1. Select the down-the-hole drill bit according to the rock condition (hardness, abrasiveness) and the drilling rig type (high wind pressure, low wind pressure). Different forms of alloy teeth and tooth distribution methods are suitable for drilling different rocks. Choosing the correct down-the-hole drill bit is the premise to obtain the best use effect. 2. When installing the down-the-hole drill bit, the drill bit should be gently placed into the clamping sleeve of the down-the-hole impactor. Do not collide with force to avoid damaging the tail shank or clamping sleeve of the drill bit. 3. During rock drilling, ensure that the air pressure of the down-the-hole drill is sufficient. If the impactor is interrupted

In order to use the down-the-hole drill correctly and ensure the drilling speed and service life of the drill bit, the following points must be paid attention:

1, according to the rock conditions (hardness, abrasion) and drilling rig type (high wind pressure, low wind pressure) to choose the down-the-hole drillHead. Different forms of alloy teeth and tooth distribution methods are suitable for drilling different rocks. Choosing the right down-the-hole drill bit,Is the premise of obtaining the best use effect;

2. When installing the down-the-hole drill bit, put the drill bit into the down-the-hole impactor brazing sleeve smoothly, and do not collide with force,To avoid damage to the bit tail shank or the clamping sleeve;

3, in the process of rock drilling, to ensure that the pressure of the down-the-hole drill is sufficient. If the impactor operates intermittently, orBlast hole powder discharge is not smooth, should be checkedDTH drilling rig compressed air system to ensure that there is no rock slag in the hole during drilling;

4. If a metal object is found to fall into the hole, it should be sucked out with a magnet or taken out by other methods in time to avoid damage to the drill bit;

5. Pay attention to the size of the drilled hole when replacing the drill bit. If the drill bit diameter is excessively worn, but the hole has not been drilledIn good times, do not replace the new drill bit to avoid sticking. Used old drills with approximately the same wear diameter can be usedHead to finish the job.

Key words:

Which, drill bit, use, drill, guarantee, avoid, diameter, process, rock drilling, impact

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