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Why the DTH Blasting Drilling need a Dust Collector system?

March 02 , 2022

Why the DTH Blasting Drilling need a Dust Collector system? When the down-the-hole drilling rig operating, it is powered by compressed air. With the increase of air pressure, the drilling speed of the down-the-hole drilling rig is faster; with the increase of dust at the drill pipe, dust is spread around the drilling rig. It will not only endanger the health of operators, but also affect the speed of down-the-hole drilling operations and accelerate the damage to mechanical and electrical equipment. If no effective dust removal measures are taken, it will cause great dust pollution to the mine environment. For operators who work in high-concentration dust environments for a long time, if the protective measures are not effective, it is very likely to lead to serious pneumoconiosis, and even loss of The ability to work has caused great harm to the physical and mental health of workers and their families.

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Advantages of the Pneumatic Drilling

February 14 , 2022

Advantages of the Pneumatic Drilling The invention and development of the pneumatic water well drilling rig is a major revolution in drilling technology. It has changed the traditional way of cutting and grinding rock, breaking the rock into volume, greatly improving drilling efficiency and adaptability to hard and complex formations. Its remarkable technology Economic benefits are regarded as one of the symbols of modern drilling technology and measurement of drilling technology, and are valued by the drilling industry at home and abroad. Pneumatic down-the-hole hammer drilling mainly begins with drilling blasting holes, water well bedrock holes and geological exploration holes. In order to expand its application scope, domestic and foreign researchers, such as the hook form and working performance of the DTH hammer, make it suitable for various projects. application requirements.

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Introduction of the Drill Rods

January 17 , 2022

Introduction of the Drill Rods Seamless alloy steel pipes are made into drill pipes after several processing steps. First of all, through the processing of the steel pipe thickening process, the outer surface of the light pipe is bent inward, and the wall of the steel pipe is thickened. The next step is threading and plating with copper for strength. A non-destructive quality control inspection is then carried out, followed by welding of the steel pipe body joint. Then, the tube undergoes a welding heat treatment and a welding finish to eliminate welding residual stress. Several other tests are performed on the finished steel pipe before painting and packaging the finished drill pipe, including hardness testing, pressure testing and non-destructive testing. The drill pipe is a steel pipe with ribbing at the end, which is used to connect the surface equipment of the drilling rig and the drilling and grinding equipment or bottom hole device at the bottom of the well. The purpose of drill pipe is to transmit torque, transport drilling fluid, connect and increase drill string, deepen wellbore to achieve normal drilling, etc. Drill pipe must be able to withstand enormous internal and external pressure, twisting, bending and vibration. During the construction of the drilling rig, the drill pipe can be used many times.

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Water well drilling rig technology

January 17 , 2022

Water well drilling rig technology Water Well Drilling Rig Equipment drills holes in the formation. According to the drilling method and the type of drilling tool, there can be rotary drilling technology. In geological exploration and geological engineering, drilling equipment facilitates underground drilling. Small diameter and deep cylindrical holes, this is called drilling. Design different drilling and drilling depth according to drilling application. The main functions of drilling is to Obtain underground physical data, and obtain cores, cuttings, oil, water, natural gas, etc. According to the purpose of classification, drilling is generally divided into geological exploration drilling, geological exploration drilling, water well, engineering geological drilling, geothermal drilling, oil drilling, etc.

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How to improve the working efficiency of a water well drilling rig

January 11 , 2022

How to improve the working efficiency of a water well drilling rig？ Working system of a water well drilling rig needs attention, since the movement system of the machine is different from the working state and working characteristics of each components. There are three important parts: rotation system, circulatory system and hydraulic system. And the system is fully configured in this way. When there are residues at the bottom of water well. The drill bit clings to the slag and affects working efficiency. At this point, you need to provide compressed air and clean the holes. Then, after running the down-the-hole hammer for a period of time, run the drilling equipment, and then perform the lifting work of the center drill again.

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The Advantages of the Pneumatic Drilling compare to Water Drilling

January 04 , 2022

The Advantages of the Pneumatic Drilling compare to Water Drilling 1) The single impact power of a pneumatic drill is large, generally up to tens of kilograms or more than a hundred kilograms, which is more than ten times-dozens of times the single impact energy of the current hydraulic impactor. Therefore, from the perspective of rock crushing, the gas drill is mainly based on impact crushing rock, and the rotation only changes the location of impact crushed rock, and at the same time plays the role of auxiliary rock crushing. Therefore, the drilling efficiency depends to a large extent on the performance and quality of the down-the-hole hammer. (2) Due to the low air density during gas drilling, the pressure of the gas column in the full-hole section is much smaller than that of the liquid column, which improves the multi-directional pressure state of the rock at the bottom of the hole, which is conducive to breaking the rock and improving the drilling efficiency; But on the other hand, it requires a high flow rate to purge the bottom of the hole. Generally, it is required that the speed of the upward return air in the outer annular gap of the drill pipe must be 10-15m/s, and the hydraulic impactor of the water drill has a liquid flow when drilling. The up-return speed is only 0.8-1.2m/s, and the annulus flow velocity during small-diameter diamond rotary drilling is mostly 1m/s. Therefore, when drilling with a pneumatic DTH water well drilling rig, there is less rock powder at the bottom of the hole, which reduces repeated fragmentation of rock powder, and its drilling efficiency can be doubled. (3) The down-the-hole hammer of the air drill uses compressed air as the motive medium when drilling. After the high-pressure air passes through the impactor, the pressure around the bit is suddenly reduced, and heat is absorbed, which is very beneficial to increase the life of the bit.

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