Hubei Huangshi Port Bulk Cargo Terminal Project Phase II

The second phase of the Hubei Huangshi Port Bulk Cargo Terminal Project is an important bulk cargo distribution center in the middle reaches of the Yangtze River, undertaking the important mission of transshipment of bulk cargo materials such as coal, ore and grain in the region. As a key logistics hub project in the Yangtze River Economic Belt, the construction of the terminal is of great strategic significance for improving the regional comprehensive transportation system and improving the navigation capacity of the Yangtze River's golden waterway. Xinanneng With its deep technical accumulation and rich engineering experience in the field of bulk material conveying, it successfully won the bid through fierce market competition, and provided a full set of high-performance conveyor components including key conveyor lines such as J01-J04 and DC01 for the second phase of the project.

The design index of the conveyor system of this project has reached the advanced level in China: the system bandwidth is unified to B=1400mm, the operating speed is increased to V=3.15m/s, and the maximum conveying capacity of a single line is Q=2000t/h. Among them, the lifting height of the J03/J04 system is 20.95m, the power of a single machine is 250kW, and the configuration of long distance, large lifting height and high power puts forward almost strict requirements for the stability, reliability and operation accuracy of Conveyor Equipment. In the face of this challenge, the Xinanneng technical team has set up a special project team to conduct in-depth technical research on the whole process from preliminary scheme design to manufacturing.

In view of the special working conditions of high humidity and high salt spray at the terminal, the technical team of Xinanneng carried out systematic special design optimization. In terms of Transmission Pulley, we provide a special Pulley with strong overload capacity, using high-quality high-strength Q345B low-alloy steel as the cylinder material, with reinforced rib plate structure and large-specification spherical roller bearings to ensure long-term stable operation under 250kW high-power drive. Pulley The shaft head is made of 40Cr alloy steel with quenched and tempered treatment, which achieves the best balance of strength and toughness, and can withstand the dual test of alternating load and shock load.

In terms of Idler configuration, we offer the precision Idler series with a high degree of protection for the project. All Idler adopt Xinanneng patented five-layer labyrinth sealing structure, combined with long-term lubrication of lithium-based grease, which can effectively resist the erosion of high humidity and high salt spray environment of the terminal, and ensure that Idler can still maintain tens of thousands of hours of maintenance-free operation under harsh working conditions. Idler The pipe body adopts high-precision CNC machining technology, and the radial circular runout is controlled within 0.3mm, which significantly reduces the jitter and wear of Conveyor Belt and reduces the operating resistance of the system.

In the manufacturing process, Xinanneng strictly follows the GB/T 10595 national standard for quality management. All Pulley are formed by CNC large plate rolling machine at one time, and the roundness error is far lower than the national standard requirements. The welding process adopts advanced submerged arc automatic welding technology, which not only ensures the depth and strength of the weld, but also ensures that each welding point is free of slag and pores through 100% ultrasonic flaw detection. In order to completely eliminate the internal stress of processing residual, all Pulley undergo strict high-temperature annealing heat treatment procedures, which lays a solid foundation for long-term stable operation.

In terms of surface treatment, for the corrosive environment of high humidity and high salt spray along the Yangtze River, we have adopted a triple special heavy anti-corrosion coating system: first, sandblasting and rust removal to reach the highest standard of Sa2.5 level, with uniform surface roughness; then spraying epoxy zinc-rich primer to provide electrochemical corrosion protection; then spraying epoxy marcite intermediate paint to enhance the adhesion and impact resistance of the coating; and finally spraying high-performance polyurethane topcoat to form a dense physical shielding layer. This composite coating system can effectively resist salt spray, moisture and UV rays, greatly extending the service life of the equipment.

During the final testing phase before leaving the factory, each Pulley is calibrated for static and dynamic balance that is more stringent than industry standards. At the simulated rated speed of 3.15m/s, the residual imbalance is controlled within the G16 level, and the vibration value during operation is almost negligible. Idler conducts rotational resistance tests, sealing performance tests and radial runout tests one by one to ensure that each product meets the quality standards of Xinanneng. This ultimate pursuit of details is the core competitiveness of Xinanneng that can win the trust of many key engineering customers.

During the implementation of the project, the Xinanneng technical service team followed up the whole process and provided a full range of technical support from installation guidance to commissioning and operation. In view of the complex installation space and multi-professional cross-construction on site, our engineers maintain close communication with the terminal builder and equipment installer to solve various technical problems encountered during the construction process in a timely manner. During the equipment commissioning stage, technicians conducted load testing and performance optimization on each conveyor line to ensure the stable operation of the system under rated working conditions.

After the project was officially put into operation, the annual throughput capacity of Huangshi Port Bulk Cargo Terminal has been greatly improved, from the original 15 million tons to 25 million tons, becoming an important hub for bulk cargo flow in the middle reaches of the Yangtze River. The conveyor system provided by Xinanneng is stable and reliable, the energy consumption is reduced by more than 8% compared with the design index, and the maintenance cost is significantly reduced, which has been highly praised by the owner. The person in charge of terminal operations said: "Xinanneng's products are not only technologically advanced and reliable in quality, but more importantly, their service team is professional and efficient, which provides a strong guarantee for the smooth commissioning of the project. ”

With the deepening of the development strategy of the Yangtze River Economic Belt, the construction of port logistics hubs along the Yangtze River is ushering in unprecedented development opportunities. Xinanneng will continue to adhere to the concept of "winning reputation with quality and promoting development with innovation", continue to increase R&D investment in the fields of high-performance conveying Accessories, intelligent monitoring systems and green energy-saving technologies, provide reliable conveyor system solutions for more key projects such as ports, mines, and electric power, help the high-quality development of China's bulk material transportation industry, and contribute to the construction of the golden waterway of the Yangtze RiverXinanneng.