Submarine Hammer Drilling An Insight into Techniques and Applications

In recent years, China has emerged as a dominant player in the global manufacturing sector, especially in specialized equipment such as heavy slurry pumps. These pumps are crucial in various industries, notably mining, construction, and wastewater management, where the efficient handling of thick, abrasive slurries is essential for operational success. This article delves into the features, applications, and benefits of heavy slurry pumps manufactured in China.

Down-the-hole hammer drilling is a technique used primarily for drilling boreholes in hard rock applications. It employs a pneumatic hammer, situated directly at the drill bit, to deliver high-impact blows that effectively break up the rock. This method contrasts with traditional rotary drilling, where the drill bit operates at the surface and relies on torque and weight to penetrate the ground.

(1) When using the drilling rig to drill, the driver should be placed in the drilling position, so that the front end is against the rock, and the distribution should be careful to let the drilling rig move forward, so that the drill bit touches the rock; When opening the hole, first quietly let the drilling rig drive, when the drill rod is in place in the rock, it is allocated to the full open position.
(2) Before starting the drilling rig, check whether the charging pressure of the accumulator is normal; Check whether the scouring water pressure and the lubricating air pressure can be; Check whether there is sufficient lubricating oil in the lubricator, and whether the oil supply is appropriate; Check the reverse tendency of the oil pump motor. (3) If the drilling rig cannot open the hole smoothly, it should first assign the rock drill to retreat, and then let the rock drill move forward to open the hole from the beginning.
(4) When replacing the drill bit, the drill bit should be gently pressed against the rock, so that the motor of the drill can be reversed to complete the sensitive unloading head.
(5) The inspection of hydraulic components can only be prevented under the condition of pole cleaning, and after the connecting tissue is removed, it must be quickly plugged with the cleaning tightly matched plug. Before the repaired rock drill is used from scratch, it is necessary to circulate the hydraulic oil into the oil circuit to wash the components of the hydraulic system.
(6) The oil level and oil supply of the lubricator should be checked regularly; The gear with reverse structure is regularly filled with high-temperature grease; Check the oil level in the lubricating oil tank regularly and remove the dirt in the oil tank

It is important to know that the shape of the sand has an important impact on the surface finish of the casting. Circular sand is better than triangular sand because the triangular sand has a large gap, which is easy to lead to defects such as porosity; According to the nature of the casting, the sodium silicate quartz sand is selected to form a spalling layer, and combined with the characteristics of cooling and shrinkage of the casting, the surface defects are reduced. Coating a protective layer on the surface of large castings, such as the film on a coated sand mold, can improve the surface finish of the sand mold and reduce the surface defects of the casting.  

What is a Fractional Head Hammer?

 Q: What sets self-priming slurry pump solutions apart from traditional pumps?
A: Self-priming slurry pump solutions offer superior priming capabilities, eliminating the need for external priming sources and simplifying operation.
 Q: How do self-priming slurry pump solutions enhance efficiency in industrial processes?
A: By handling abrasive materials with ease, reducing downtime, and optimizing performance, self-priming slurry pump solutions drive efficiency and productivity in various industries.
Q: Are self-priming slurry pump solutions suitable for harsh environments?
A: Yes, self-priming slurry pump solutions are designed to withstand the rigors of challenging environments, making them ideal for industries such as mining, construction, and manufacturing.
 Q: Can self-priming slurry pump solutions be customized to meet specific requirements?
A: Yes, manufacturers offer customized solutions that cater to the unique needs of industries, ensuring optimal performance and efficiency.
Q: How do self-priming slurry pump solutions contribute to cost savings for industries?
A: By reducing maintenance costs, minimizing downtime, and optimizing processes, self-priming slurry pump solutions help industries save money and improve their bottom line.

1. Earth Drilling Bullet teeth are ideal for drilling through dense and rocky soils. Their robust design allows operators to bore holes for foundations, utility poles, and other structures without compromising efficiency.