longwall advancing

简明释义

前进式长壁开采

英英释义

例句

1.Safety protocols are crucial while longwall advancing to prevent accidents in the mine.

在进行长壁推进时，安全协议至关重要，以防止矿井中的事故。

2.The latest technology has improved the efficiency of longwall advancing operations.

最新技术提高了长壁推进操作的效率。

3.The mining team reported that the longwall advancing process is proceeding smoothly, allowing for efficient coal extraction.

矿山团队报告称，长壁推进过程顺利进行，允许高效的煤炭开采。

4.During the meeting, the engineers discussed the challenges of longwall advancing in steep terrain.

在会议上，工程师们讨论了在陡峭地形中进行长壁推进的挑战。

5.Our project timeline depends heavily on the speed of longwall advancing.

我们的项目时间表在很大程度上依赖于长壁推进的速度。

作文

The mining industry has developed various techniques to maximize efficiency and safety in the extraction of coal. One such method is known as longwall advancing, which is a highly effective way to mine coal from underground seams. This technique involves the use of a longwall face, where a large block of coal is mined in a single slice rather than through traditional room-and-pillar methods. As the name suggests, longwall advancing refers to the process of moving forward along this long wall of coal. This method not only increases the amount of coal extracted but also minimizes the waste generated during the mining process.In longwall advancing, the mining operation begins with the establishment of a longwall panel, which can be several hundred meters long and typically about 2-3 meters high. Once the panel is set up, specialized machinery called shearers are used to cut the coal from the face of the seam. As the shearer moves along the longwall face, it breaks off the coal and transports it to a conveyor system that carries it to the surface. This continuous process allows for a steady flow of coal extraction, making it more efficient than other methods.One of the significant advantages of longwall advancing is that it allows for high recovery rates of coal. Unlike room-and-pillar mining, where a significant portion of coal is left behind to support the mine, longwall advancing can recover up to 90% of the coal in a given area. This increased recovery is crucial for meeting the growing energy demands while reducing the environmental impact of mining operations.Moreover, longwall advancing is designed to enhance worker safety. The method involves the use of automated systems and remote-controlled machinery, which reduces the need for miners to work in hazardous conditions. By minimizing human exposure to dangerous environments, the risk of accidents and injuries is significantly lowered. Additionally, the longwall panels are supported by hydraulic shields that protect miners from the collapsing rock above, further enhancing safety in the working environment.However, despite its many benefits, longwall advancing is not without its challenges. The initial setup costs for this type of mining operation can be quite high, as it requires specialized equipment and significant investment in infrastructure. Furthermore, the geological conditions of the mining site must be suitable for this method; otherwise, the risks of subsidence and other geological issues may arise.In conclusion, longwall advancing represents a significant advancement in coal mining technology. Its ability to recover large amounts of coal efficiently while prioritizing safety makes it an attractive option for mining companies. As the world continues to seek sustainable energy solutions, understanding and improving methods like longwall advancing will be essential for the future of the mining industry. The ongoing development and refinement of this technique could lead to even greater efficiencies and reduced environmental impacts, paving the way for a more sustainable approach to resource extraction.

采矿业发展了多种技术，以最大限度地提高煤炭开采的效率和安全性。其中一种方法被称为长壁推进，这是一种非常有效的地下煤层开采方式。这种技术涉及使用一个长壁面，在这里一大块煤在单一切片中开采，而不是通过传统的房柱法。顾名思义，长壁推进是指沿着这面长墙向前移动的过程。这种方法不仅增加了开采的煤炭量，而且最大限度地减少了在采矿过程中产生的废物。在长壁推进中，采矿操作始于建立一个长壁面，该面可以长达几百米，通常高约2-3米。一旦面板建立，使用称为剪切机的专业机械来切割煤层的面部。当剪切机沿着长壁面移动时，它会将煤块打断并运送到一个输送系统，该系统将煤运送到地面。这一连续过程允许煤炭开采的稳定流动，使其比其他方法更有效。长壁推进的一个显著优势是它能够实现高煤炭回收率。与房柱采矿不同，在房柱采矿中，必须留下一部分煤以支撑矿井，长壁推进可以在给定区域内回收高达90%的煤。这种回收率的提高对于满足日益增长的能源需求，同时减少采矿作业对环境的影响至关重要。此外，长壁推进的设计旨在增强工人的安全性。这种方法涉及使用自动化系统和遥控机械，减少了矿工在危险环境中工作的需要。通过最小化人类暴露于危险环境中的风险，事故和伤害的风险显著降低。此外，长壁面由液压支架支撑，保护矿工免受上方塌陷岩石的影响，进一步提高了工作环境的安全性。然而，尽管有许多好处，长壁推进也并非没有挑战。这种采矿操作的初始设置成本可能相当高，因为它需要专用设备和基础设施的重大投资。此外，采矿地点的地质条件必须适合这种方法；否则，可能会出现沉降和其他地质问题的风险。总之，长壁推进代表了煤炭采矿技术的一项重大进步。它高效回收大量煤炭的能力，同时优先考虑安全性，使其成为采矿公司的一种有吸引力的选择。随着世界继续寻求可持续能源解决方案，理解和改进像长壁推进这样的采矿方法将对未来的采矿业至关重要。这一技术的持续发展和完善可能会导致更大的效率和减少环境影响，为资源开采的可持续方法铺平道路。