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Φ28 × 8 coal bit
Key words:
Classification:
- Product Description
- Instructions for use
- Application Case
- Product Parameters
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- Commodity name: Φ28 × 8 coal bit
- Commodity ID: MYT-015
- 上架时间：: 2017-07-27 17:47
- 直径：: 28
- 长度：: 80
- 螺纹形式：: Plug-in type
- 适用范围：: Widely used in coal mines, gypsum mines and other soft rock drilling, reaming operations.
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carbide coal rock drill bit
1For operation in different rock formations, different types of drill bits, shaft pressure and rotation speed shall be selected according to the hardness of lithology.
23. The drilling operation must be carried out in accordance with the principle of matching the three perforation elements (wind pressure, axial pressure and rotational speed) with the parameters of the drill sample recommend.
3Before going into the well, please check the appearance of each part of the drill bit, and verify whether the end face of the drill bit thread is consistent with the factory number on the drill bit packing box and certificate of approval; whether the surface of the drill bit palm is pasted with the new brand mark to prevent counterfeiting.
4The drill bit shall be reasonably stored on the drilling rig to prevent dust and other sundries from entering the drill bit.
5When replacing the drill bit, it is necessary to ensure that there is no dust inside the drill bit, the air outlet is unobstructed, and the screw thread is oiled. The drill bit can only be used after being connected by lifting and rotating coordination.
6Before replacing the new drill bit, carefully check whether the thread and teeth are in good condition.
73. Low shaft pressure and low rotation speed shall be required when new drill bit is drilled.20-30After minutes, gradually increase to normal axial pressure.
82. When the new drill bit is newly opened, attention should be paid to remove the sundries (rubble, scrap metal, etc.) around the hole. At the same time of rotation, ventilation should be slowly released and close to the surface to prevent sudden drilling and impact damage to the drill bit.
91. When the drill bit is replaced in the middle of the operation in the soft rock stratum, it is necessary to strictly check whether the palm back of the old drill bit and the alloy teeth on the cone have fallen off to the bottom of the hole. If there is any residue of the old drill bit in the hole, it is strictly prohibited to use the new drill bit in the original hole.
10When the drilling rig is shut down, the drilling tools shall not be parked in the hole with water to prevent the rock slag and water from flowing back into the bearing and damaging the drill bit.
11In case of rock crack or rock crack caused by blasting and goaf operation, the shaft pressure and rotating speed shall be reduced to prevent the teeth from being broken.
121. When the drilling tool is in the hole, reverse rotation is prohibited to prevent the bit from falling into the well.
132. When the drill bit is in the hole and the air compressor suddenly stops working, the rock slag is easy to enter the drill bit, so it is strictly prohibited to rotate for a long time, resulting in bearing wear, rock slag repeated crushing (or sticking), and accelerated wear of the drill bit.
14During normal perforation operation, the main air path of the air compressor shall not have serious air leakage to ensure sufficient air volume and air pressure and prolong the service life of the drill bit.
15The rod stabilizer shall be replaced regularly to ensure the stability of the drill rod and the normal operation of the drill bit.
16It is forbidden to use curved drill pipe to avoid uneven force on the three teeth of the drill bit and accelerate the damage of the drill bit.
172. Drill bit storage shall be damp-proof and ventilated. In the process of handling, it is forbidden to bump the roller and screw thread. -
★ COMPANY PROFILE ★
Shandong Yikuang Drilling Technology Co.,Ltd. Located in Linqing City, a famous city of the ancient Beijing-Hangzhou Canal and an important industrial town in Shandong Province, it is located 500 meters south to the west at the intersection of 323 Provincial Highway and 247 Provincial Highway of Youth Sub-district Office. The company has a registered capital of 50 million yuan and the factory covers an area of 100000 ㎡. It is a high-tech enterprise integrating technology development and equipment manufacturing, sales and technical services in the fields of geological drilling, coal mining, engineering anchoring, gas and dust disaster control.
Since its establishment, the company has been committed to the development and application of drilling, mining, anchoring and equipment in coal mines, mines, construction and water conservancy projects, railways, highways, tunnels and bridges. In 2018, "Liaocheng industrial and mining safety protection drilling tool engineering technology research center" was settled here, and was successively rated as "national high-tech enterprise", "provincial specialized and special new enterprise", "science and technology small and medium-sized enterprise" and "Shandong gazelle enterprise" Liaocheng "one enterprise, one technology" R & D center. The company has established long-term strategic cooperative relations with many scientific research institutions and equipment enterprises. The strength of the company, there is a professor, associate professor, doctor, master and other composed of more than 40 people of high-quality scientific and technological personnel. Relying on the talent and technical advantages of many mining universities and strategic cooperation units, and aiming at the needs of coal, mining, construction engineering and other industries, it has developed and produced a number of drilling products and equipment with independent intellectual property rights.
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