These 5 tips will help your down-the-hole drill bits drill 10 more holes

The essence of rock drilling with a down-the-hole drilling rig is to make the hammer dive into the hole during the rock drilling process to reduce the energy loss caused by the impact energy transmitted by the drill rod, thereby reducing the impact of hole depth on rock drilling efficiency.

The combination of down-the-hole drill bits and air compressors greatly improves project efficiency, which is usually 15 to 20 times that of hydraulic drilling rigs. If a well is drilled at the same time, if it takes 15 days with an ordinary hydraulic drilling rig, it will only take one day with a down-the-hole drilling rig. Greatly save labor and fuel consumption costs.

However, while meeting the requirements of rapid drilling, we must also bear corresponding costs. First, the price of the down-the-hole drilling rig itself is often much higher than that of the hydraulic drilling rig; first, the loss of the down-the-hole drilling rig itself, the footage is fast, and the wear is also quick.

We can't make much fuss about the price of the down-the-hole drilling rig itself. At most, we can only get the best price. For example, if you buy a glass ball and a diamond, they are definitely not the same price. If you want to buy diamonds, no matter how good your relationship is with someone, all you have to do is get a Double Eleven coupon, and they still have to say, "Dear, if it weren't for your price, I'll kill you." I won’t sell it either~”

So we can only save money by reducing loss costs. I have summarized some practical experience, I hope it will be useful to you:

01

Choose the right down-the-hole drill bit

Down-the-hole drill bits are selected based on rock conditions (hardness, abrasiveness) and drill type (high wind pressure, low wind pressure). Different forms of alloy teeth and tooth arrangement methods are suitable for drilling different rocks. Choosing the correct down-the-hole drill bit is the prerequisite for obtaining the best results;

02

Pay attention to installing the down-the-hole drill bit

When installing a down-the-hole drill bit, place the drill bit gently into the drill sleeve of the down-the-hole hammer. Do not hit it with force to avoid damaging the drill bit tail shank or the drill sleeve;

03

Ensure adequate air pressure

During the rock drilling process, it is necessary to ensure that the air pressure of the down-the-hole drilling rig is sufficient. If the hammer works intermittently, or the blast hole powder discharge is not smooth, the compressed air system of the down-the-hole drilling rig should be checked to ensure that there is no rock slag in the hole during the drilling process;

04

Check for metal objects in the air

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

05

When replacing the drill bit, pay attention to the size of the blast hole.

When replacing the drill bit, pay attention to the size of the drilled blast hole. If the diameter of the drill bit is excessively worn but the blast hole has not yet been drilled, the drill bit cannot be replaced to avoid drill jamming. The job can be done with an old drill bit that has been used and has about the same worn diameter.