Mining rock bolts have a wide range of applications. Before use, it is essential to understand the installation methods to ensure proper application. If you are interested in this topic, let's explore together, hoping to provide assistance to relevant personnel.

Mining rock bolts are widely used in various industries, highlighting their extensive applications. For installation, a φ30-40 drill bit can be used to drill the anchor bolt hole. The hole depth should be 350mm less than the length of the steel strand. Clean the hole of rock powder using water or air. Check the resin anchoring condition. Based on the resin gel quality and setting speed, feed the resin into the drill hole slowly, pushing it to the bottom along with the steel strand. Use a mixer to thoroughly mix the steel strand with the anchor rod drill output shaft. After connecting, tighten the anchor rod while mixing and pushing the mixture into the hole bottom. After reaching the mixing time specified in the resin product instructions, stop rotating the tie but do not loosen it. Wait for the resin to solidify, then loosen the drill hole tie, remove the mixing joint, and complete the anchor bolt anchoring. Afterwards, install the grouting plug, tray, and anchor rod sequentially, and use a tensioning tool to apply the required pre-tightening force. The mining rock bolt is designed to withstand tension. Remove the tensioning tool, and the entire installation process is complete.

Alternatively, during installation, a grouting joint can be connected to the grouting machine. Start the grouting machine and inject grout into the hole until the anchor hole is filled or the grouting pressure reaches the design value. Continue with the grouting joint, anchoring the next cable until all anchors are grouted. Other engineering work should follow the technical specifications for pre-stressed anchor bolt construction in coal mines. Check the position and condition of the mud ring. If damaged, replace it according to technical requirements. Check the position and transparency of the exhaust pipe. Insert the product into the hole. When the mining rock bolt sealing ring positions the grout at the hole opening, stop pushing the grout, install the grouting pipe and check valve. After installation, check if the drain pipe is blocked. If not smooth, remove the anchor bolt, troubleshoot, and reinstall. Alternatively, when grouting, use a bottom-drill grouting structure, injecting grout from the bottom of the hole and vent hole, using a grouting position indicator to control the grouting position. This grouting machine is used for grouting mine cable anchor holes and M40 cement mortar materials. The mortar needs to be completely solid. After the base leveling is completed and the cement mortar has solidified and shrunk, the foundation pit needs to be filled with grout.

Through the above introduction, we have learned about the installation methods of mining rock bolts. Other knowledge points will be updated in the next issue. If you have time, remember to come and watch. There are customer service representatives available 24 hours a day. For many years, the company has been committed to the expansion and development of domestic and international markets, adopting both online e-commerce platforms and offline physical sales.