In working conditions such as deep mining, high concentration tailings transportation, and heavy medium coal preparation, the slurry medium contains a large amount of high hardness particles such as quartz sand and iron concentrate, which continuously cause "cutting" and "impact" dual wear on the pipe wall under high-pressure driving. Ordinary rubber hoses wear through within a few months under such working conditions, and frequent replacement becomes a heavy burden on operating costs and production continuity. The UPE steel wire wrapped high-pressure hose is a professional solution for this extreme working condition - using ultra-high molecular weight polyethylene (UPE) lining to construct an anti erosion barrier, using steel wire wrapped reinforcement layer to carry 35MPa high-pressure pulses, and providing sufficient redundancy with 4 times the blasting safety factor. It has become a reliable channel in the mining wear-resistant and pressure resistant transportation field that combines "wear resistance" and "high pressure resistance". 1、 35MPa pressure rating: the "strength threshold" for deep mining and high-pressure transportation 35MPa (approximately 5075psi) belongs to the "medium high pressure" range in mining hydraulic and slurry conveying systems, and is a typical pressure level for deep well mining and long-distance pumping. According to the design, development, and verification of large-diameter steel wire wrapped rubber hoses, the minimum burst pressure corresponding to a working pressure of 35MPa is 140MPa, which is 4 times the working pressure, and the verification pressure reaches 1.5 times the working pressure. This ample safety margin provides structural redundancy for the frequent occurrence of pressure pulses and instantaneous overpressure in the mining system - even if water hammer impact occurs during pump start stop or unexpected pipeline blockage causes pressure surges, the hose can still maintain structural integrity without bursting. In terms of specifications, the inner diameter of the high-pressure rubber hose used in mining can cover a diameter of 63 to 76mm, meeting the needs of high flow slurry transportation. The length variation under a working pressure of 35MPa is controlled within+2% to -2%, ensuring that the joint does not loosen due to excessive expansion and contraction caused by pressure fluctuations during long-distance installation. This pressure level is suitable for scenarios such as deep well mining, remote hydraulic support supply, and high-pressure tailings transportation, and can effectively cope with frequent pressure fluctuations and impact loads in mining operations. 2、 The anti erosion code of UPE lining: molecular chain structure and super strong wear resistance UPE (ultra-high molecular weight polyethylene, also known as UHMW-PE) has a molecular weight of over 3 million, with extremely long and highly ordered molecular chains, endowing the material with excellent anti sliding friction properties. Actual test data shows that the wear resistance of UPE lining is 7 times that of ordinary carbon steel and 6 times that of nylon. When transporting iron concentrate slurry with a concentration of 60% and a particle size of ≤ 5mm, the wear rate of UPE lining is only 0.03mm/thousand hours, and the service life can reach 8-10 times that of ordinary rubber pipes. The chemical stability of UPE lining enables it to withstand the common acid-base corrosion in mining slurry. Ultra high molecular weight polyethylene has a saturated molecular structure, high chemical stability, and can withstand various corrosive media and organic solvents. A certain copper mining enterprise used UPE lined hoses to transport acidic slurry with a pH value of 2-3. After continuous use for 18 months, the inner wall remained smooth without obvious corrosion pits or wear grooves. The friction coefficient of the inner wall of UPE material is only 0.07-0.11, which is more than 60% lower than that of metal pipelines. This not only reduces transportation energy consumption, but also reduces the adhesion and scaling of particles on the inner wall. In terms of low temperature resistance, UPE can maintain good performance even at extremely low temperatures of -40 ℃, with high impact strength, making it particularly suitable for winter mining operations in northern high-altitude regions. Its elongation at break can reach over 400%, and it has great bending adaptability during construction. When the crust settles, it can be stretched to three times its own length without breaking. 3、 Three layer composite structure: system integration of wear-resistant lining, steel wire reinforcement, and weather resistant outer adhesive The UPE steel wire wrapped high-pressure hose adopts a three-layer composite structure design, with each layer performing its own duties, forming a complete protection system of "wear resistance pressure resistance weather resistance". The inner lining layer is made of ultra-high molecular weight polyethylene (UPE) material, which is the core functional layer for wear resistance and corrosion resistance. The reinforcement layer adopts a multi-layer high carbon steel wire interlaced weaving or winding structure. According to the product technical parameters, the burst pressure of the 24 layer ultra-high strength steel wire winding reinforcement layer can reach over 105MPa. The steel wire layer is made of 42 high carbon steel wires with a diameter of 0.3mm interwoven to ensure that the pipe body does not swell or deform under a working pressure of 35MPa. The outer rubber layer is high elastic weather resistant synthetic rubber (SBR or EPDM), which is tear resistant, anti-aging, acid and alkali resistant. It can easily adapt to the complex site environment such as open pit mines, dust damp, acid and alkali corrosion, and resist the damage caused by ultraviolet rays and mechanical collision. In terms of end connections, a buckle type flange or integral joint structure is used to ensure that the joint will not loosen under pressure pulsation conditions. Compared with traditional steel lined rubber pipelines, UPE hoses weigh only 1/5 of steel pipes of the same specification. No lifting equipment is required during installation, and two workers can complete the laying of a hundred meter pipeline. The flexible pipe design can adapt to complex terrain, especially suitable for mobile operations in open-pit mines. In summary, the UPE steel wire wrapped high-pressure hose perfectly meets the systematic requirements of "wear resistance, pressure resistance, and long service life" for deep mining and slurry transportation, thanks to its ultimate anti erosion performance with ultra-high molecular weight polyethylene lining, 35MPa high-pressure bearing capacity reinforced with multiple layers of steel wire, 4x blasting safety factor, and wide temperature range adaptation. From 8-10 times the lifespan of iron concentrate to stable operation of acidic slurry for 18 months, from -40 ℃ extreme cold flexibility to 105MPa blasting redundancy, every material selection and structural detail points to the same goal: to provide reliable guarantees for slurry transportation that can withstand erosion and high pressure in the mining front line of ore crushing and slurry flow.