煤炭发电

The flow diagram illustrates the linear process of generating electricity from coal, along with the distribution of the final power and waste outputs. Overall, coal-fired electricity production is a multi-stage process that progresses from raw coal extraction to final power delivery, generating two types of waste byproducts at different stages. The entire process can be broadly divided into three main phases: coal preparation, gas processing, power generation and distribution. To begin with, raw coal is extracted from an underground mine, then sent to a crusher where large coal chunks are ground into fine powder. Next, the crushed coal is transported via a rail cart to a gasifier. At the gasification stage, solid waste is removed as a byproduct, while the produced syngas is piped to a cooler for purification and cooling. The cooled treated gas is then fed into a gas power plant, where it is burned to drive power generation. At this final production stage, heat waste is discharged, and the generated electricity is transmitted and supplied to two end users: residential houses and industrial facilities.