powdered coal

简明释义

粉煤

英英释义

例句

1.Environmental regulations are becoming stricter for the use of powdered coal.

对使用粉煤的环境法规变得越来越严格。

2.In the manufacturing process, powdered coal is often mixed with other materials.

在制造过程中，粉煤通常与其他材料混合。

3.The efficiency of the boiler increases when using powdered coal instead of lump coal.

使用粉煤而不是块煤时，锅炉的效率提高。

4.The combustion of powdered coal produces a significant amount of heat.

燃烧粉煤产生大量热量。

5.The power plant uses powdered coal to generate electricity efficiently.

这座发电厂使用粉煤高效地发电。

作文

In recent years, the world has been facing significant challenges regarding energy production and environmental sustainability. One of the traditional sources of energy that has been widely used is coal. However, the form in which coal is utilized can greatly impact its efficiency and environmental footprint. One such form is powdered coal, which is also known as pulverized coal. This type of coal is produced by grinding coal into a fine powder, which allows for more efficient combustion in power plants. The process of creating powdered coal involves crushing the coal into small particles, typically less than 0.1 mm in diameter. This increased surface area enables the coal to burn more completely, resulting in higher energy output and reduced emissions compared to larger coal chunks.The use of powdered coal in electricity generation has several advantages. Firstly, it enhances the efficiency of the combustion process. When coal is in powdered form, it mixes more easily with air, leading to a more uniform and complete burn. This means that power plants can generate more electricity from the same amount of coal, making it a cost-effective option for energy production. Additionally, the finer particles of powdered coal can lead to lower levels of harmful pollutants being released into the atmosphere. For instance, the combustion of powdered coal can significantly reduce sulfur dioxide (SO2) emissions, which are responsible for acid rain and other environmental issues.However, the use of powdered coal is not without its challenges. One of the primary concerns is the potential health risks associated with the dust created during the grinding process. Fine particles can become airborne and pose respiratory hazards to workers in coal processing facilities. Therefore, strict safety regulations and dust control measures must be implemented to protect workers' health. Furthermore, while powdered coal offers some environmental benefits, it still contributes to greenhouse gas emissions. As the world grapples with climate change, there is an increasing need to transition to cleaner energy sources, such as wind, solar, and hydroelectric power.Another consideration is the infrastructure required for handling powdered coal. Power plants must be equipped with specialized equipment to store, transport, and combust the fine coal particles effectively. This can involve significant investment in technology and maintenance. Additionally, the logistics of transporting powdered coal can be more complex than that of traditional coal, as care must be taken to prevent dust emissions during transit.In conclusion, powdered coal plays a crucial role in modern energy production, particularly in coal-fired power plants. Its ability to enhance combustion efficiency and reduce certain emissions makes it a valuable resource in the energy sector. However, the associated health risks, environmental impacts, and logistical challenges must be carefully managed. As we move towards a more sustainable future, it is essential to consider all aspects of energy production, including the role of powdered coal, and to explore alternatives that can help us reduce our reliance on fossil fuels. The transition to cleaner energy sources is imperative for the health of our planet and future generations.

近年来，世界在能源生产和环境可持续性方面面临重大挑战。煤炭是被广泛使用的传统能源之一。然而，煤炭的使用形式会极大影响其效率和环境足迹。其中一种形式是粉煤，也称为磨煤。这种煤是通过将煤磨成细粉末来生产的，这使得其在发电厂中更有效地燃烧。制造粉煤的过程涉及将煤破碎成小颗粒，通常直径小于0.1毫米。这种增加的表面积使得煤能够更完全地燃烧，从而产生更高的能量输出并减少排放，与较大的煤块相比。在发电中使用粉煤有几个优点。首先，它提高了燃烧过程的效率。当煤处于粉末状时，它更容易与空气混合，从而导致更均匀和完全的燃烧。这意味着发电厂可以从相同数量的煤中产生更多的电力，使其成为一种经济高效的能源生产选择。此外，粉煤的细颗粒可以导致释放到大气中的有害污染物水平降低。例如，燃烧粉煤可以显著减少二氧化硫（SO2）排放，这些排放是酸雨和其他环境问题的原因。然而，使用粉煤并非没有挑战。主要关注点之一是与研磨过程中产生的灰尘相关的潜在健康风险。细小颗粒可能会变得悬浮在空气中，对煤处理设施中的工人构成呼吸危害。因此，必须实施严格的安全法规和粉尘控制措施，以保护工人的健康。此外，尽管粉煤提供了一些环境利益，但它仍然会导致温室气体排放。随着世界应对气候变化，越来越需要转向更清洁的能源来源，如风能、太阳能和水电。另一个考虑因素是处理粉煤所需的基础设施。发电厂必须配备专门的设备，以有效地存储、运输和燃烧细煤颗粒。这可能涉及对技术和维护的重大投资。此外，运输粉煤的后勤可能比传统煤更复杂，因为在运输过程中必须小心防止灰尘排放。总之，粉煤在现代能源生产中发挥着至关重要的作用，特别是在燃煤发电厂中。它增强燃烧效率和减少某些排放的能力使其成为能源部门的宝贵资源。然而，相关的健康风险、环境影响和后勤挑战必须得到认真管理。随着我们向更可持续的未来迈进，必须考虑能源生产的所有方面，包括粉煤的作用，并探索能够帮助我们减少对化石燃料依赖的替代方案。向更清洁能源源的过渡对我们星球和未来几代人的健康至关重要。