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2019-05
Prevent risks, eliminate hidden dangers and prevent accidents! The theme of "safe production month" in 2019 is confirmed! Publisher: Coal Mine Safety Net Browse: 363 Release Date: 2019-05-10 Source: Notice of the Office of the Safety Committee of the State Council of the Coal Mine Safety Net on Launching the 2019 National "Safety Production Month" and "Safety Production Miles" Activities No. 10 Safety Production Committee of all provinces, autonomous regions, municipalities directly under the Central Government and Xinjiang Production and Construction Corps, relevant member units of the Safety Committee of the State Council, and relevant central enterprises: June this year
2019-05-13
12
2019-05
YiKuang Technology-Happy Mother's Day to all mothers in the world!
After having your own children, at which moment did you suddenly understand your mother?
2019-05-12
11
2019-05
Classification of Rocks-Yicang Science and Technology Drill Pipe Spiral Drill Pipe Diamond Bit Factory Outlet Rocks can be divided into three categories: 1. Magmatic rocks (spouted rocks) 2. Sedimentary rocks 3. Metamorphic rocks 1. Magmatic rocks mainly include granite, andesite, diorite, rhyolite, basalt, gabbro, etc. 2. Sedimentary rocks mainly include: quartz sandstone, lime conglomerate, mudstone, dolomite, mudstone, gypsum, etc. 3. Metamorphic rocks mainly include: gneiss, chlorite schist, phyllite, marble, mica schist, etc. Although the appearance of rocks is ever-changing, but from their formation environment, that is, from the cause of division, can be divided into rocks
2019-05-11
10
2019-05
The spiral drill pipe plays an important role in the drilling process. It transmits the torque of the drilling rig to the drill bit to realize drilling. In the drilling, the geological spiral drill pipe is subjected to a very complex load, almost at the same time under the tension, compression, torsion, bending and other stresses, the quality of the geological spiral drill pipe plays a vital role in the drilling work. Material and processing will cause geological spiral drill pipe to break (1) Geological spiral drill pipe material. Nowadays, the market for drilling materials is relatively chaotic, and dishonest merchants are shoddy. The vast majority of users only consider low prices, but do not have the ability to distinguish the quality of pipes and purchase them indiscriminately. Many users paid a high price and bought it.
2019-05-10
09
2019-05
Beneficiarymining-Research on Prediction Method of Directional Borehole Trajectory in Coal Mine
Abstract: (Abstract): In view of the problems that the three-point fixed circle method does not consider the force deformation of the drilling tool and the related parameters of the vertical and horizontal bending beam method are difficult to obtain in the traditional drilling trajectory prediction method, a new method of coal mine directional drilling trajectory prediction is proposed, which uses the vertical and horizontal bending beam theory to improve the three-point fixed circle method. According to the theory of vertical and horizontal bending beam, the method analyzes the force of the single-bending screw drill assembly, derives the three-bending moment equation, obtains the second span length L2 formed after the bending deformation of the drill assembly, and substitutes the three-point circle method, calculates the predicted slope of the drill assembly under different force conditions, and realizes the directional drilling of the coal mine near-horizontal kilometer.
2019-05-09
08
2019-05
Shandong Yikuang Drilling Technology Co., Ltd.-Talking about the Advantages of Diamond Bit
Diamond composite sheet (PDC) is a special superhard material synthesized by synthetic diamond and hard alloy at one time under high temperature and high pressure. It not only has the advantages of high diamond hardness and wear resistance, but also has the characteristics of hard alloy, such as strong impact and large cutting edge. All over the country's coal fields, oil drilling, water conservancy and hydropower, railway, highway, tunnel construction and other industries. The diamond PDC bit holder is made of high-quality steel (42CrMo) forging and forming, which is added by vacuum automatic heat treatment equipment.
2019-05-08
06
2019-05
Today, long summer# "not only spring and summer are good, but also flowers and plants are career".
Long summer is the 7th solar term in the 24 solar terms of the lunar calendar. The first solar term in summer indicates the official beginning of the midsummer season. When the sun reaches 45 degrees of the yellow longitude, it is the long summer solar term. Dou refers to the southeast, and Wei is long summer. Everything has grown up so far, hence the name long summer. Low eyebrows, spring is gone. Look up, the beginning of the summer. A not careful, the heart of the summer came. Watching the old locust trees on the street flourish day by day, listening to the cuckoo's tireless chirping in the distance, guarding the smart green plums in the courtyard, it is time to make a pot of green plum wine. Summer, grow up. But the poet said, "Xiao He only showed sharp corners, and dragonflies stood on top". Wave to the spring
2019-05-06
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2019-04
Yikuang Science and Technology May Day-Our Workers Have Strength!
Our workers have power!
2019-04-30
30
2019-04
Beneficiation Mining Technology Entered the 18th 2019 Taiyuan Coal (Energy) Industrial Technology and Equipment Exhibition.
2019-04-30
