coal preparation

简明释义

选煤

英英释义

例句

1.The efficiency of coal preparation can significantly affect the overall performance of a coal-fired power plant.

煤炭准备的效率可以显著影响煤电厂的整体性能。

2.In the mining industry, coal preparation involves washing and sizing the coal to remove impurities.

在采矿行业，煤炭准备涉及洗涤和分级煤炭以去除杂质。

3.The process of coal preparation is crucial for improving the quality of coal before it is sent to power plants.

在将煤炭送往发电厂之前，煤炭准备的过程对于提高煤炭质量至关重要。

4.Environmental regulations have made coal preparation more important in reducing emissions.

环境法规使得煤炭准备在减少排放方面变得更加重要。

5.Advanced technologies are being developed to enhance coal preparation methods.

正在开发先进技术以增强煤炭准备方法。

作文

The process of coal preparation is crucial in the coal industry, as it involves various techniques that enhance the quality and efficiency of coal extraction and utilization. Coal preparation refers to the treatment of coal to remove impurities and improve its properties before it is used for energy production or other applications. This process typically includes several steps such as crushing, screening, washing, and dewatering. Each of these steps plays an important role in ensuring that the final product meets the required standards for combustion and environmental safety.Firstly, crushing is one of the initial stages in coal preparation. It reduces the size of the coal to make it easier to handle and process. Crushing also helps to liberate impurities such as rocks and dirt from the coal. Following crushing, screening is employed to separate the crushed coal into different size fractions. This is important because different sizes of coal can be utilized for various applications, and finer coal may be needed for specific combustion processes.Washing is perhaps the most critical step in coal preparation. During this stage, water and chemicals are used to remove unwanted materials like sulfur and ash from the coal. The washing process not only improves the calorific value of the coal but also minimizes harmful emissions when the coal is burned. Reducing sulfur content is particularly important, as it helps to decrease air pollution and comply with environmental regulations.After washing, the coal undergoes dewatering, where excess water is removed to prepare it for transportation and storage. Dewatering is essential because high moisture content can lead to increased transportation costs and decreased heating value. Once the coal preparation process is complete, the coal is ready for shipment to power plants or other users.Moreover, the importance of coal preparation cannot be overstated in terms of economic and environmental factors. By improving the quality of coal, companies can maximize their profits while minimizing the environmental impact of coal combustion. High-quality coal burns more efficiently, producing more energy per unit and generating fewer emissions. This is particularly relevant in the context of global efforts to combat climate change and reduce reliance on fossil fuels.In conclusion, coal preparation is a vital process in the coal industry that enhances the quality of coal through various stages including crushing, screening, washing, and dewatering. This not only ensures that the coal meets necessary standards for use but also contributes to more efficient and environmentally friendly energy production. As the world continues to seek cleaner energy sources, understanding and improving the coal preparation process will remain essential for the sustainability of coal as an energy resource.

煤炭准备过程在煤炭工业中至关重要，因为它涉及多种技术，以提高煤炭开采和利用的质量和效率。煤炭准备是指对煤炭进行处理，以去除杂质并改善其特性，然后再用于能源生产或其他应用。这个过程通常包括几个步骤，如破碎、筛分、洗涤和脱水。这些步骤中的每一个都在确保最终产品符合燃烧和环境安全所需标准方面发挥着重要作用。首先，破碎是煤炭准备的初始阶段之一。它减少了煤的尺寸，使其更易于处理和加工。破碎还帮助从煤中解放出杂质，如岩石和泥土。在破碎之后，采用筛分将破碎的煤分成不同的粒度。这一点很重要，因为不同粒度的煤可以用于各种应用，而较细的煤可能需要用于特定的燃烧过程。洗涤可能是煤炭准备中最关键的步骤。在这一阶段，使用水和化学品去除煤中的不必要材料，如硫和灰分。洗涤过程不仅提高了煤的热值，还减少了燃烧时的有害排放。降低硫含量尤为重要，因为这有助于减少空气污染并遵守环境法规。洗涤后，煤炭会进行脱水，去除多余的水分，为运输和储存做好准备。脱水是必不可少的，因为高水分含量会导致运输成本增加，热值降低。一旦煤炭准备过程完成，煤就可以准备运送到发电厂或其他用户。此外，煤炭准备的重要性在经济和环境因素方面也不可低估。通过提高煤的质量，公司可以在最大化利润的同时，最小化煤燃烧对环境的影响。高质量的煤燃烧更有效，每单位产生更多的能量，并且产生更少的排放。这在全球努力应对气候变化和减少对化石燃料依赖的背景下尤其相关。总之，煤炭准备是煤炭工业中一个至关重要的过程，通过破碎、筛分、洗涤和脱水等各个阶段提高煤的质量。这不仅确保煤满足使用所需的必要标准，还促进了更高效和环保的能源生产。随着世界继续寻求更清洁的能源来源，理解和改善煤炭准备过程对于煤作为能源资源的可持续性将始终至关重要。