Pipeline scrapers, often called pigs, are used to remove deposits from the inner walls of pipelines using a combination of mechanical scraping and fluid dynamics. The primary principle is to use the flow of the fluid in the pipeline to propel the pig along the pipeline's length. The pig is designed to fit snugly inside the pipeline, so the fluid pressure behind the pig pushes it forward. Mechanical scraping is achieved using various types of cleaning elements attached to the pig's body. These elements can include brushes, blades, or scrapers made ....
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