The hot tar drainage suction and discharge pipe is a special type of pipeline mainly used for treating tar and drainage in coke production. This type of pipeline needs to withstand high temperature, high viscosity, and highly corrosive media, so it needs to have characteristics such as high temperature resistance, corrosion resistance, and wear resistance. The manufacturing process of hot tar drainage suction and discharge pipes usually includes the following steps: Prepare raw materials: Choose materials that are resistant to high temperature, corrosion, and wear, such as stainless steel, nickel based alloys, etc. Processing and production: According to the design requirements, cut, bend, weld and other processes are carried out on the raw materials to produce the required pipeline shape. Internal surface treatment: Polish and spray anti-corrosion coatings on the inner surface of pipelines to improve their corrosion resistance. Assembly: Assemble the processed pipeline with corresponding valves, connectors, etc. to form a complete hot tar drainage suction and discharge pipe system. Inspection and testing: Inspect and test the assembled pipeline to ensure its performance meets the requirements. The characteristics of the hot tar drainage suction and discharge pipe include: High temperature resistance: able to withstand high temperatures, ensuring that there is no softening or deformation during the coke production process. Corrosion resistance: Made of corrosion-resistant materials, it can resist the corrosive effects of tar and asphalt. Wear resistance: The inner wall of the pipeline is smooth, and it is not easy to accumulate impurities and scale, effectively reducing the risk of pipeline blockage. Easy installation: The length and curvature of the pipeline can be customized according to needs, making it easy to install and use. Long service life: After reasonable internal surface treatment and processing technology, the service life of pipelines is longer, reducing the frequency of maintenance and replacement. In summary, the hot tar drainage suction and discharge pipe is a special type of pipeline with characteristics such as high temperature resistance, corrosion resistance, and wear resistance. It is widely used in the process of treating tar and drainage in coke production. The design and manufacturing of such pipelines need to fully consider the effects of high temperature, high viscosity, and highly corrosive media to ensure their stable and reliable performance.