Ultra-High Composite Tailings Pipe

The mining tailings pipe developed by the company, the ultra-high pipe is composed of ultra-high molecular weight polyethylene pipe and carbon steel pipe through a scientific production process. This product not only inherits the excellent characteristics of ultra-high molecular weight polyethylene pipes but also possesses the high pressure-bearing performance of carbon steel pipes. It features a series of characteristics such as wear resistance, high pressure resistance, impact resistance, corrosion resistance, self-lubrication, and anti-adhesion, making it widely applicable in fields such as long-distance dredging, filling, fly ash transportation, mining tailings, high transportation of water-coal slurry, and the transportation of corrosive media containing slag. The company is capable of producing large-diameter ultra-high molecular weight polyethylene steel-plastic composite pipes with an inner diameter of over 800mm. The flow rate of this product can increase by more than 3 times compared to traditional steel pipes, reducing the frequency of pipe replacements and downtime during use. The comprehensive cost of engineering pipelines can be reduced by 400% compared to cast steel pipes.

Advantages of Ultra-High Composite Tailings Pipe in Mining:

1. The impact resistance of the ultra-high pipe is top among various plastics. Its resistance to environmental stress, cracking ability, and scratch resistance are leading in its category, with an impact strength that is over 10 times that of PE100 at room temperature and over 16 times at -30℃; its cracking resistance is about 2 times that of PE100. Moreover, the lower the environmental temperature, the stronger the impact resistance. This flexibility allows it to withstand various external shocks and ground deformation without needing composite steel pipes, making it safer and more reliable than steel pipes.

2. The wear resistance of the ultra-high composite tailings pipe is 4 to 7 times that of steel and 10 times that of polyethylene and polypropylene, being 2.3 times more effective in transporting fine particles like fly ash.

3. The ultra-high pipe features a saturated molecular cluster structure, making its chemical properties very stable and able to resist the erosion of various corrosive media and organic solvents, outperforming plastics like polyethylene, polypropylene, nylon, and ABS in corrosion resistance.

4. The ultra-high pipe has non-adhesive properties, with its chemical and physical polarity lower than that of ordinary plastics, such as polyethylene with a polarity of 9 while ultra-high has only 1. This polarity is significantly lower than that of metal materials, making ordinary adhesives ineffective on ultra-high. Similarly, scaling substances are difficult to attach. As long as the flow rate of the slurry reaches 2.3 to 4.6 meters/second, scaling is hard to form. Even if a scale layer forms due to long-term slow accumulation, it is not firm and easy to remove. Additionally, acid washing does not require corrosion inhibitors, and the surface remains smooth after washing, with no damage to the pipe wall.

5. The theoretical service life of the ultra-high composite tailings pipe can reach hundreds of years. The aging and embrittlement rates of ultra-high are very slow; when buried for 50 years, its mechanical properties only decrease by about 20%. The anti-aging performance of ultra-high pipe materials surpasses that of PE100, with the anti-aging performance of polyethylene pipelines being about 1/4 higher than that of PE100 pipes, and the ultraviolet resistance performance is similar to that of PE100.

6. The friction coefficient of the ultra-high pipe is only 1/6 of new steel pipes, 1/5 of ordinary polyethylene, 1/20 of rubber, and 1/2 of polypropylene. Moreover, the wear resistance, non-adhesiveness, and corrosion resistance of ultra-high ensure that the pipe wall remains smooth and unobstructed, generally increasing the flow capacity by over 50% compared to steel pipes, maintaining a low-pressure and smooth state in the transmission system for a long time.

7. The tensile yield strength and tensile fracture strength of the ultra-high pipe are high, with a heat deformation temperature exceeding that of ordinary plastics by over ten degrees, and the cold brittle temperature has almost no lower limit, plus a 100% elongation rate. Thus, it can withstand significant pipe stress over a wide temperature range and absorb impact loads and pressure fluctuations occurring during shutdown.

8. The welding process of the ultra-high pipe is simple, intuitive, and efficient, with weld seam strength exceeding that of the pipe body, providing convenience and assurance for the installation of long-distance pipelines, especially for medium and high-pressure pipelines. The ultra-high pipe does not require anti-corrosion treatments, is lightweight and flexible, facilitating transportation and laying, and allows changes in direction according to terrain variations.

Installation costs for ultra-high pipes are generally only about one-fifth of those for steel pipes and steel-plastic composite pipes.

9. The price of the ultra-high composite tailings pipe is relatively moderate. For medium diameters and medium-low pressure pipelines, the total project cost can even be lower than that of seamless steel pipes, and lower than composite pipes and alloy pipelines, with a service life exceeding that of steel pipes by more than 6 times and composite pipes by more than 4 times, resulting in significant economic benefits.

10. The ultra-high pipe is suitable for crude oil transportation pipelines, as most of these pipelines are laid in remote areas with complex terrain and significant climatic variations. Therefore, the advantages of the ultra-high pipe include light weight, ease of installation and construction, strong low-temperature resistance, and anti-aging properties, making its benefits particularly prominent for crude oil transportation pipeline laying.

From the above analysis, it is clear that for various solid particles, powders, and slurry transportation in industrial and mining enterprises, due to harsh working conditions, serious wear, structural issues, and severe corrosion are common problems; traditional pipes are often inadequate to meet usage requirements. The ultra-high pipe, as a new type of pipe that is resistant to scaling, highly wear-resistant, highly impact-resistant, corrosion-resistant, low-temperature resistant, and self-lubricating, has superior performance in the transportation of solid particles, wear-resistant hydraulic transportation of slurries, and the transportation of various corrosive fluids and gases. It is a high-performance engineering plastic pipe capable of transporting solid, liquid, and gaseous substances.

Company Case Studies for Ultra-High Composite Tailings Pipe:

1. Qinghai Xinchuan Mining Co., Ltd. pipeline project (3000 meters Φ219 composite pipeline)

2. Luoyang Molybdenum Group Co. pipeline project (1200 meters Φ377 composite pipeline)

3. Luanchuan Jufeng Mining Co., Ltd. tailings pipeline project (3200 meters Φ273 composite pipeline)

4. Song County Weiyan Mining Co., Ltd. pipeline project (1400 meters Φ219 composite pipeline)

5. Luanchuan Hexinyuan Mining Co., Ltd. tailings pipeline project (3900m  Φ159 ultra-high molecular weight polyethylene composite pipe)

6. Qianxinan Jinlong Gold Mining Co., Ltd. tailings pipeline project (1500m  Φ159 ultra-high molecular weight polyethylene composite pipe)

7. Luanchuan Faende Mining Co., Ltd. tailings pipeline project (1500m  Φ325 ultra-high molecular weight polyethylene composite pipe)

8. Shanxi Yangbai Mining Co., Ltd. tailings pipeline project (500m  Φ159 ultra-high molecular weight polyethylene composite pipe)

9. Hunan Fifteenth Metallurgy Export to the Democratic Republic of the Congo, sand extraction and discharge project (4800mm, Φ219 ultra-high molecular weight polyethylene composite pipe)