With the popularization of anchor shotcrete support technology in coal systems, the use of rock bolt is increasing. At present, the rock bolts are mainly steel anchor rods, which are used in China's coal systems. Steel anchor rods are easily corroded and fail in underground operations. Due to the collision of the shearer anchor bolts or other equipment, sparks will be generated. Hazardous safety hazards in gas mine production. In addition, the scrap steel bolts under the picks are mixed into the coal, which not only affects the coal quality, but also damages the transportation equipment easily.

In view of the characteristics of underground operations in coal mines, it is particularly important to develop high-strength and lightweight FRP bolts that can be cut by coal mining machinery directly. FRP bolts are made of unsaturated resin as the basic material and composited with glass fiber as the reinforcing material. The good chemical properties of synthetic resin and the height of glass fiber determine that FRP has a performance advantage unmatched by other materials.

FRP bolts have the following advantages:

1. Light weight and high strength, relatively light weight, only about one-fifth of the steel bolts of the same specifications, but the strength can be very similar to steel bolts.

2. Easy to cut. Because it is a non-metallic material, no sparks will be generated during the construction operation, which not only guarantees the safety of coal mine operation, but also solves the anchoring and supporting effect.

3. Convenient transportation and storage, light weight reduces transportation pressure, and can be transported into the warehouse with coal after cutting, avoiding damage to the scrap steel anchor pile equipment.

The above are some basic knowledges of FRP bolts. As a hot-selling coal mine support tool, ZXSteelGroup will provide you with high-quality and cheap FRP bolts. If you have support needs, please contact us!

Email: zxminesupport@zxsteelgroup.com

Whatsapp: +86 18236766038