Due to careless prevention, mine blasting often causes serious safety accidents, causing serious loss of personnel and property. What should be paid attention to in mine blasting safety? Pay attention to the following safety points during mine blasting: Preventive measures for safety accidents caused by detonating tubes: 1. There must be no dead knots in the detonation pipe network. There should not be any seams in the hole. 2. After inserting the detonator into the cassette, fasten the detonator and the cassette with a rope. When handling primary explosives, the detonator must be placed in the reserved hole of the primer. The ban came ou...

UY300 crawler drilling rig is mainly used to drill the borehole for Irrigation, household water etc. It uses the excavator special crawler chassis as the walking device, which has stronger off-road performance. UY series drill rig can equip not only Mud pump but also Air compressor to satisfy different work need. It is suitable for drilling water well holes in soil and stone works such as water conservancy etc. It has the advantages of fast footage, convenient operation and flexible movement. Sometimes it can also be used for slope protection,anchoring and piling. Drillable diameter is 80-500mm, economic depth is 300m. The UY300 crawler d...

On September 15, two KT11 integral high-pressure down-the-hole drilling rigs were shipped in Lianyungang and exported to Peru, a South American country. This order puts forward higher requirements for large-scale drilling equipment. After customers’ repeated screening of various drilling products across the country, Unique Group the KT11 integral high-pressure down-the-hole drilling rig has advanced technology, compact structure and excellent performance. The advantages of safety, reliability, energy saving and environmental protection have finally been affirmed by users. Since the beginning of this year, our group’s foreign t...

How to choose drill bits for different working formations of water well drilling rigs? The drill bit is one of the important drilling tools in the drilling of water well drilling rigs. It can be said that without the drill bit, the water well drilling rig equipment cannot start production normally. This shows the importance of the drill bit in the water well drilling rig. For different types of water well drilling rig equipment, different drill bits are required in production. When selecting a drill bit for water well drilling rig equipment, the following aspects should be paid attention to: 1. When producing in soft rock with better dril...

Mud ring wrapping means that rock dust (chips) adheres to the surface of the drilling tool or the borehole wall to form a mud ring and wrap the drilling tool when the water well drilling rig works. After the mud ring is formed, the annular space becomes smaller and the debris is not smoothly removed and continues to gather at the mud ring to form mud packs, which can completely block the wellbore in severe cases, causing sticking and buried drilling accidents. Reason analysis Stratigraphic factors: micro water gushing and moist formations. The micro water gushing in the formation forms a liquid film on the well wall and makes the rock dus...

The stuck and buried drill accidents refer to the phenomenon that the wall of the well is dropped or collapsed and stuck in the drill bit and hammer when drilling rig work, causing it to lose space for movement. Cause Analysis Stratigraphic factors: cracks and faults caused by geological structure, dissolution, and joints have developed to loosen the rock mass and weakened cementation force, and water gushing causes some rock formations to absorb water and expand and disintegrate. Process technology: Drilling medium and high frequency shock to destroy the overall structure of the rock mass, high-speed air erosion (peeling) to destroy the ...

Installation and preparation of water well drilling rig Prepare the rock-drilling cavern. The specifications of the cavern can be determined according to the method of drilling. Generally, the height of the cavern is 2.6-2.8 meters when the horizontal hole is drilled, and the width of the cavern is when the upward, downward or inclined hole is drilled. It is 2.5 meters and the height is 2.8-3 meters. 2. Lead the gas and water pipelines, lighting lines, etc. to near the working surface for later use. 3. Erect the pillars firmly according to the requirements of the hole design. The upper and lower ends of the pillar should be padded with ...

Replacement of throttle valve for drilling rig machine accessories: Replace the valve plate and valve seat: remove the valve cavity pressure, remove the valve cover bolts, and take out the valve plate and the valve cover together. Removal of slotted round nuts, switch pins, hexagonal screws, front and rear stop caps, the cylindrical valve plate can be replaced, and the valve seat can be replaced at the same time. When cleaning the valve cavity, pay special attention to the sealing surface. To replace the new valve plate and valve seat, the gap between the valve plate and the valve cover boss should be filled with sealing grease, and the i...

The working principle of the down-the-hole drilling rig is the same as that of the ordinary impact rotary pneumatic rock drill. The pneumatic rock drill combines the impact rotary mechanism, and the impact energy is transmitted to the drill bit through the drill rod; while the down-the-hole drilling machine separates the impact mechanism (impacter) into the bottom of the hole. No matter how deep the hole is, the drill bit is directly installed On the impactor, there is no need to transmit impact energy through the drill rod, thus reducing the loss of impact energy. As the drilling depth of the rock drill of the down-the-hole drilling rig ...