Spherical Netting Coal Sheds, also known as “ball-shaped coal sheds”, are widely used in coal mines and have been proven to be reliable and safe. They are made up of steel pipes and accessories in order to provide the necessary support and stability. In this article, we will discuss the requirements of steel pipes and accessories used in spherical netting coal sheds.

First and foremost, the steel pipe used in the construction of the coal sheds must be of high quality and grade, capable of withstanding the pressure of the heavy coal loads and the weather. It must also be corrosion-resistant and conform to applicable international standards. It is recommended that the pipe be made of ASTM A53 grade B or higher carbon steel.

Furthermore, the steel pipe must be of a certain size and dimension to ensure its stability and strength. The diameter of the pipe should be at least 50mm, with a wall thickness of at least 3.2mm. It should also be cut to a standard length of 6m.

In addition, several accessories must be used in order to assemble the steel pipes into the spherical netting coal shed. These include steel angles, which are used to connect the steel pipes and create the shape of the shed. These must be at least 25mm in length and made with a minimum thickness of 5mm. Furthermore, steel plates must be used to connect the steel angles and keep them secure. These should be made from steel grade A36 and must be at least 6mm thick.

Finally, bolts and nuts are essential components of any steel structure. These must be made from high-grade steel, with a minimum thickness of 8mm and tensile strength of at least 400MPa. Nuts and washers must also be used, and these should have a minimum diameter of 8mm and a thickness of 6mm.

In conclusion, high-quality steel pipes and accessories are essential components of any spherical netting coal shed. They must be of the right size and grade and must be securely connected with bolts, nuts, and washers. Furthermore, they must be corrosion-resistant and conform to international standards. With the right materials and components, a spherical netting coal shed can provide years of reliable and safe service.

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