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03
2020-03
Maintenance of down-the-hole impactor and drill bit-Yikuang Technology
The advantages of 1. down-the-hole impactor and drill bit in water well construction 1. High drilling efficiency, long drilling tool life, down-the-hole impactor rock drilling, the medium is air, there is no problem of recovery and treatment of flushing medium, and auxiliary time is reduced. 2. The use cost is low. The down-the-hole impactor requires small shaft pressure on the drilling rig, low speed, low torque, low natural power consumption, relatively thin drill pipe diameter, easy installation and disassembly, and long service life. 3, DTH impactor drilling, the hole wall is more complete, no other media pollution, basically can maintain the original formation structure and water permeability, reduce the well cleaning time, save the cost. 4,
2020-03-03
03
2020-03
Treatment Measures of Underground Dust -- YiKuang Science and Technology
According to data from the National Health and Family Planning Commission, in 2017, a total of 27420 cases of occupational diseases were reported nationwide, including 24206 cases of pneumoconiosis. The number of reported cases of pneumoconiosis accounted for 88.28 of the total number of reported cases of occupational diseases in 2017, most of which were distributed in the coal industry. By the end of 2016, the cumulative number of pneumoconiosis reported nationwide has exceeded 700000 cases, accounting for 90% of occupational diseases. Mine dust, as one of the five underground natural disasters, not only endangers the health of workers, but also has the risk of explosion. With the mechanization and automation of coal resources mining is getting higher and higher, the amount of coal dust is also increasing, and the development of coal
2020-03-03
03
2020-03
Analysis of the causes of damage to the down-the-hole drill bit-Yiguang Technology
Mud ring wrapping Mud ring wrapping means that rock powder (chips) adheres to the surface of the drilling tool or the borehole wall to form a mud ring and wrap the drilling tool. After the mud ring is formed, the annular space becomes smaller and the debris removal is not smooth, and the debris continues to gather at the mud ring to form a mud bag, which completely blocks the borehole in severe cases, causing sticking and burying accidents. Cause analysis of formation factors: micro-water gushing and wet formation, formation micro-water gushing in the well wall to form a liquid film and make rock powder wet, well wall liquid film and rock powder bond each other to form a cuttings group, the cuttings group can not be completely taken out of the well shaft by air at the well wall, hammer head adhesion to form a mud ring, and mud group adhesion to form a mud ring phenomenon is particularly serious. Solution (1) replace the drilling process.
2020-03-03
03
2020-03
Crawler maintenance method of water well drilling rig-YiKuang Technology
The track tension of rotary drilling rig should be adjusted according to the soil quality in the construction process to cope with the difference of soil quality in different construction sites. This can also be done to extend the life of the machine. When the soil is soft, soil is easy to adhere to the track and rail link, so the track should be adjusted slightly loosely to prevent abnormal stress applied to the rail link due to the adhesion of soil. In the construction site with pebbles, the track should also be adjusted slightly loosely, so that the bending of the track plate can be avoided when walking on the pebbles. When the ground is firm and flat, it is best to adjust the track slightly tight. Adjustment of track tension: if the track is over-tensioned
2020-03-03
03
2020-03
Crawler Cleaning Method of Water Well Drilling Rig -- Yikuang Science and Technology
The water well drilling rig crawler is composed of crawler shoes and crawler pins. The track pins connect the track shoes to form a track link. There are holes at both ends of the track shoe to mesh with the driving wheel, and there are guiding teeth in the middle to regulate the track, and the water well drilling rig prevents the track from falling off when turning. The side in contact with the ground has reinforced anti-skid ribs (referred to as patterns) to Improve the firmness of the track shoe and the adhesion between the track and the ground. The water well drilling rig chassis also has supporting chain wheels, roller wheels, driving wheels and rail chain links. When cleaning and cleaning the crawler of the 2. water well drilling rig, the sludge on the lower walking body shall be cleaned at the same time. After the operation is completed, the operators shall clean and drive.
2020-03-03
03
2020-03
1. Before the construction starts, the full-time safety officer must conduct a comprehensive investigation and detailed understanding of the surrounding environment, underground pipelines and geological conditions in the construction area. The position, direction and depth of underground pipelines, air defense facilities and canals in the crossing area must be well known. Relevant technical measures shall be taken in the construction organization design to ensure the construction safety. Special personnel shall be instructed to properly handle the underground pipelines and air defense facilities in the drilling work area. 2. Before the start of construction, carefully conduct safety technical measures disclosure to the construction personnel, effectively implement the safety technical measures in the construction organization design during the whole construction process, and establish a safety technical disclosure system at the same time,
2020-03-03
03
2020-03
Construction Scope of Horizontal Directional Drilling Rig-Yiguang Science and Technology
1. This method is applicable to municipal water supply and drainage construction. 2. This method is a trenchless pipe laying technology, which is suitable for pipeline laying through rivers, lakes, buildings and other obstacles, as well as the construction of urban municipal underground pipe network that is not suitable for excavation. 3. It is suitable for various formations without boulders, including water-bearing formations, not suitable for gravel layers, and generally used for soft soil layers. 4. Applicable pipes are steel pipes and PE pipes, with a pipe diameter of 200-1200mm and a maximum pipeline length of 1500m. 5. Due to the limitation of the detection depth of the detector, the maximum guided drilling depth is 15m.
2020-03-03
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2020-03
