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Practice Analysis and Discussion of a Model Undertaking Equipment
To ensure safe and efficient operations in mining environments, it is crucial to address the risks associated with partial loading of vehicles. When only one side or the back of a vehicle is loaded, it can lead to dangerous rollover or side-slip accidents, especially when navigating sharp turns. These incidents not only pose a risk to personnel but also accelerate tire wear, reducing the lifespan of the tires and increasing maintenance costs.
To mitigate this, drivers must remain vigilant and report any signs of improper loading immediately. The on-site dispatch should be informed, and corrective actions taken promptly. In some cases, uneven hydraulic damping on either side of the vehicle may cause the bucket to tilt, leading to partial loading. In such situations, the damping cylinder pressure should be adjusted or stopped immediately to stabilize the machine.
In addition, strict speed management policies must be implemented. Clear guidelines for driving speeds on different routes and areas should be established, and all operators must adhere to these standards. Regular inspections by a dedicated speed control team are essential to ensure compliance. Any instances of speeding should be addressed immediately, with appropriate disciplinary actions taken if necessary.
Road maintenance plays a vital role in preventing accidents and tire damage. A proactive approach—“cultivating the road, repairing the carâ€â€”should be adopted. This includes maintaining even road surfaces and ensuring that loading points are smooth and free of obstructions. Mining process managers should monitor electric excavator operations daily to prevent over-excavation or under-excavation, which can create uneven terrain and force vehicles to make frequent, sharp turns, further damaging tires.
To avoid the formation of S-shaped roads, the stripping work line must be developed evenly and straight. Large rock blocks larger than 10 meters should be treated with controlled blasting. High-voltage lines and cables should be laid out in a neat, organized manner, and if necessary, elevated to avoid interference. Ensuring that the main road is 11 meters wide without deep pits is critical. Any irregularities should be repaired promptly, and a professional maintenance team should be assigned to clean and maintain the road surface regularly.
In areas where the rock is highly weathered and contains significant soil, particularly during the rainy season, roads can become soft or unstable. To prevent this, a layer of moderate-sized rock should be pre-padded before the rainy season to maintain road stability and hardness.
Tire maintenance is equally important. If there is more than two areas of tread rubber peeling or separation, the tire should be scrapped. For minor separations, the affected area should be removed, and if swelling is slight, repairs can be made. However, if the tire shows severe swelling or continued separation, it must be replaced. Regular checks for abnormal wear due to incorrect air pressure, load distribution, or misalignment are necessary. Polygonal wear, brake-related issues, or shoulder wear should be addressed promptly to ensure safe operation.
When tires show smooth, even wear without visible trauma or swelling, they can be retreaded. However, in rough conditions, such as those found in areas with five shaft wells and seven auxiliary winches, it's important to use high-quality tires and replace them as needed to maintain performance and safety.
The spring-buffered receiving device represents an innovative solution for lifting cages in mines. Designed with strong springs as a cushioning component, it combines the advantages of traditional cradles and cans while eliminating their drawbacks. It ensures accurate positioning, facilitates easy access for mine cars, and provides effective buffering, reducing impact on the cage, its contents, and the wellbore equipment. Even at high speeds, the device offers enhanced safety, and it can accurately receive the cage even if there are minor positioning errors caused by depth variations or load changes. This improves lifting efficiency and ensures safer operations in the mine.