Down-the-hole drill slag removal video tutorial

A down-the-hole drill, usually called DTH by most professionals, is basically a screwed on the bottom of a . The fast hammer action breaks hard rock into small cuttings and dust that are evacuated by a fluid (air, water or ). The DTH hammer is one of the fastest ways to drill hard rock. The system is thought to have been invented independently by Stenuic. [pdf]

FAQS about Down-the-hole drill slag removal video tutorial

What is a down-the-hole drilling method?

The video shows the down-the-hole drilling method for very hard soil or rock. A rotary drilling rig, type LB 20, working with down-the-hole hammer inside a casing. A flushing current conveys the loosened drill cuttings upwards and exits at the upper end of the casing.

How does a down-the-hole drill work?

In down-the-hole drilling a drill rod is fitted with a hammer at its lower end. The hammer, which is mounted on the drill bit, is activated through the addition of compressed air and driven into the ground – simultaneously rotating and impacting. A flushing current collects the loosened drill cuttings and conveys them upwards.

What is down-the-hole (DTH) drilling?

Down-the-hole (DTH) drilling has made it easier for contractors to drill wells faster and more efficiently, and to transition from dirt boring to rock boring just by adding a compressor and hammer to the drill bit.

How do you drill a rock with a DTH hammer?

This method is mainly applied for hard to very hard rock and/or for penetrating large boulders. 1. Setting the DTH hammer with drill rod and casing on the drilling point. 2. Rotary and percussive drilling of the drill string under compressed air supply. 3. After reaching the final depth, unlocking of the drill rod with DTH hammer and pilot bit.

How does DTH drilling work?

With DTH drilling, contractors can change the drill that they were using for the current directional bore to a rock drill when they encounter rock by connecting the drill with a compressor and a steerable hammer. Well drilling also needed changes to be made to rotary drilling when the well needed to take a turn.

How does DTH hammer drilling work?

A flushing current conveys the loosened drill cuttings upwards and exits at the upper end of the casing. If you have any further questions, please contact our local sales or service team. DTH hammer drilling is a percussive drilling process powered by compressed air.

Screw air compressor rust removal

You cannot remove rust from an air compressor, and sanding away rust damages the integrity of the tank and increases the risk of danger. Since rust causes irreversible damage to air tanks, prevention is the best way to keep your tank healthy and yourself safe. [pdf]

FAQS about Screw air compressor rust removal

How do you remove rust from an Air Compressor tank?

Let the tank dry out by placing it in a dry environment and leaving the valve open. Once you make sure, it’s dry, close the drain valve tightly so no moisture gets in. Rust forms inside your air compressor tank because of water carried into the tank by moisture.

Should I replace my rusting air compressor?

If you have noticed excessive condensation in your tank, you should replace your rusting air compressor. You cannot remove rust from an air compressor, and sanding away rust damages the integrity of the tank and increases the risk of danger.

How do I Keep my air compressor from rusting?

No matter what equipment you use to keep your air compressor rust-free and safe, always make sure to keep routinely checking the vessel for water and rust. Even if you have an aftercooler, you should still check the tank for vessel integrity to uphold the highest safety standards possible.

How do I know if my air compressor is rusting?

If there’s rust inside your air compressor’s tank, it likely indicates that the structural integrity has already been compromised to some degree. However, without x-raying the tank, it's impossible to physically see what's happening structurally. I have inspected many tanks using a borescope and have never seen a crack or pinhole.

Why do air compressors rust?

The water makes a chemical reaction with iron and oxygen, which results in rust. Air compressor sucks air and anything that comes with it that including water vapor. It condenses inside the tank and becomes liquid water which is the primary cause of rust formation.

Is it safe to use a compressor if it's Rusty?

No, it’s not safe to use a compressor when it’s rusty. Rust may cause overheating or thinning of the tank, which is bad for your compressor. You may get into an accident if you’re not careful and when the machine goes over its limit. Cleaning rust out of your air compressor tank isn’t recommended.