Energy-Saving Nozzles, Xuzhou Yuanyang Magnetics

Xuzhou Yuanyang Magnetic Materials operates multiple high-temperature heating kilns for the sintering of magnetic components at 1600℃. Sintering at this temperature requires sustained high burner output, and the incumbent conventional units were consuming natural gas at a rate that made fuel cost a significant and highly visible line item in total production cost. In a competitive magnetic-materials market where component pricing is under consistent pressure, the case for a targeted energy-saving retrofit was strong and the potential annual saving easily justified the investment.

Langfu specified six 320KW energy-saving burners engineered to match the thermal load of the client's kilns. Critical to the project scope was full compatibility with the existing gas-supply connections and port dimensions — the replacement units were designed to fit directly into the original mounting positions without pipeline modifications or structural changes to the kiln body. This compatibility-first approach minimised kiln-down time, kept installation complexity low, and ensured that kiln operators could continue using familiar procedures without any retraining requirement.

The energy-saving burners achieve higher combustion efficiency at 1600℃ through two principal mechanisms: a more precisely controlled fuel-air mixture ratio that minimises excess-air losses, and an optimised combustion-chamber geometry that promotes thorough mixing and complete oxidation before exhaust gases leave the firing zone. Both mechanisms reduce the volume of natural gas required to deliver a given quantity of usable heat. In practice, this translates to a faster heat-up profile, a more stable flame, and a more uniform temperature distribution across the sintering zone — all of which improve the quality consistency of the sintered magnetic material in addition to reducing fuel consumption.

Acceptance testing produced a clear and auditable result: the standard burners consumed 3,500 m³ per cycle while the energy-saving units consumed 3,000 m³ — a verified reduction of 14%. Post-retrofit operation has been consistently stable, heat-up is faster, and combustion efficiency is reliably higher across production runs. The annual gas-cost saving translates directly into a structural cost advantage for the plant in the magnetic-materials market. The project also provides a well-documented field reference for the performance of Langfu's energy-saving burner range on 1600℃-class sintering kilns.