Refer to the PE pipe for mining, how many do you know about it? Follow me to know the reasons why choose PE Pipe for mining, its connection, storage, use, maintenance and how to clean it.
4 Reasons Why Choosing PE Pipes for Mining
PE pipes are popular in mining industry, because of its’ characteristics which are mainly reflected in the following 4 aspects.
- PE Pipe Systems are Both Chemical and Corrosion Resistant
when you are handling the most aggressive materials from abrasive the most aggressive materials from slurries to corrosive acids, bases and salts, PE pipes perform well because of its chemical and corrosion resistant. It makes them suitable for use not only for distributing water around mining processes, supplying water to mines and recovering it, but also in tailings pipelines, mineral extraction and treatment applications. 2. PE Pipe System is anIdeal for the Supply of Potable Water to a Mine PE pipe is physiologically non-toxic and more resistant to galvanic corrosion than more traditional materials like steel pipes, which can be badly damaged. 3. PE Pipe isFar Lighter in Weight Than Alternative Materials Because PE pipes are light, it is making the transportation and installation process less costly and far easier without the need of using heavy lifting equipment for installation – especially within mine shafts where water pipes are frequently ceiling-mounted. PE pipe systems are also resistant to thermal shock and will stand up to the harshest of environmental conditions, operating between -40°C and +60°C. 4. PE Pipes for Mining Industry is Easily Maintained PE pipes have inherent strength and impact resistance, but are flexible enough to cope with normal ground settlement after installation. They are less likely to block because of the extremely smooth bore. If large volumes of liquid are being transported, there is very low friction, meaning less drag or turbulence at high flow rates and greater resistance to scaling than water absorbent materials, which means they are more easily maintained.
The Connection and Storage of Pipe for Mining
The Connection Method of PE Mine Pipe
- Hot-melt Butt Connection: The hot-melt butt connection mainly uses a special butt welding machine to connect the pipes.
- Steel-plastic Connection: flanges, threaded threads, etc. can be used for connection.
- Socket Connection: Mainly use special socket connection.
The Transportation and Storage of PE Mine Pipe
When the pipe is transported, you should try to avoid severe impact and throwing. The buried PE leakage pipe is strictly prohibited from dragging and scratching by sharp and hard objects, as well as oil and chemical pollution. PE mining pipes should be stored as far away as possible from heat sources and oil and chemical contaminated areas. The ground should be flat and well ventilated in a warehouse. If stacked outdoors, there should be coverings. The pipes should be stacked neatly horizontally, and the stacking height should not be highthan 1.5m.
The Use And Maintenance of PE Mining Pipes
The flange connection of PE mine pipe flange is made of anti-static and flame-retardant PE material. The flange root and the pipe body are directly butt welded together. The flange root is equipped with a loose metal flange, and the pipe is directly flanged and flared. Form the flange root, and then fit the loose metal flange.
The connection method is the same as that of ordinary pipelines, the flange and the flange can be connected with bolts, and the self-sealing does not need to add a gasket.
If the landfill installation is not carried out, PE mining pipes must be fixed (buttresses, brackets, hangers, etc.) to ensure that the pipes will not move axially under the action of pressure or water hammer (air hammer). In order to prevent the pipeline from deforming or being pulled from the flange connection.
Because the rigidity of PE mining pipes is lower than that of steel pipes, it is necessary to prevent PE mining pipes from swinging and flexing under pressure when they are fixed. When installed vertically, the distance between two fixed points should not be greater than 2m.
When installing horizontally, the distance between two fixed points should be: ≤1100mm for Φ110～Φ160 pipelines; ≤1500mm for Φ160～Φ225 pipelines.
The installation principle of PE pipe fittings for mines is where the fluid changes greatly at the elbows, tees, and reducers of the pipe fittings. Which will produce fluctuations and impact forces, causing vibrations at the pipe fittings. These places will also bear the thrust generated by the fluid pressure. It must be fixed with a push pier bracket or the like. Fix it with cement or brick buttresses, and put pipes or pipe fittings in the piers, similar to valve fixing.
High-pressure water cleaning is used for the cleaning and care of PE mining pipes: high-pressure water jets above 50Mpa are used to strip and clean the dirt on the inner surface of PE mining pipes with high-pressure water jets. This technology is mainly used for short-distance pipelines, and the diameter of the pipeline must be greater than 50cm. PIG pigging technology relies on the driving force generated by the pump to drive the PIG (pipe pig) to push forward in the pipe, and discharge the dirt accumulated in the PE mining pipe out of the pipe, so as to achieve the purpose of cleaning. Chemical cleaning of PE mining pipes is to use chemical agents to temporarily transform the pipes, and use temporary pipes and circulating pump stations to carry out cyclic chemical cleaning from both ends of the pipes.
How to Clean PE Mining Pipe?
Due to the particularity of the operation, the mine pipe may need to be cleaned in time. But how to clean it? There are several methods to solve it. Such as chemical cleaning, high pressure water spray cleaning, ultrasonic cleaning method, pig cleaning. etc., Refer to the details please click here.