The two TBMs used in the Haiyu Gold Mine can increase excavation efficiency by more than times, accelerating the company's subsequent performance growth. According to public information, a total of . billion yuan has been invested in the construction of offshore gold mine projects. The "five verticals and one inclined" have all been connected, and the construction of key facilities such as the ore dressing plant and tailings pond has been smoothly promoted. The progress and results are far beyond expectations.
All this is inseparable from the company's persistence in technological nigeria phone number list innovation. For example, the company has created a precedent for the selection of wire ropes for ultradeep wells in China through innovative interactive design of wire rope twist directions. The main well hoisting speed reaches meters per second, solving the industry problem of tail rope twisting for ultradeep well hoisting.
In addition, Ruihai Mining has also achieved more than technical breakthroughs in the meterless chamber loading system and dual power supply transformation, and overcome technical difficulties such as the easy collapse of the thick and loose sand layer on the surface, the high risk of drilling under complex geological conditions, and the difficulty of installing ultradeep and largediameter drilling pipelines. It has completed the optimization of the drainage system, created the domestic record for the deepest largediameter drilling, and ensured the efficient progress of the project construction.