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Coking Oven Gas (COG) is a significant byproduct of the destructive distillation of coal during metallurgical coke production. This complex gas mix—comprising hydrogen (H2), methane (CH4), carbon monoxide (CO), light hydrocarbons, and high amounts of corrosive impurities such as hydrogen sulfide (H2S), ammonia (NH3), and tar—poses extreme demands on safety and equipment durability. Managing this volatile medium requires precise gas boosters that can maintain optimal line pressures without leakage.
As a leading exporter and manufacturer, Shandong Zhangqiu Blower Co., Ltd. builds highly specialized coking oven gas pressure centrifugal fans designed to handle gas fluctuations, mitigate thermal expansions, and prevent toxic leakage. With our proprietary gas-tight seals and reinforced alloy impellers, we guarantee a safe path for industrial gases within refinery and steel plant processes.
Our engineering approach is backed by 50+ years of manufacturing experience, addressing chemical corrosion, thermal expansion, and mechanical wear.
Application of special anti-sticky coatings and duplex stainless steel impellers (e.g., 2205 or 316L grade) to resist ammonia and sulfur compound erosion.
Engineered with multi-stage labyrinth seals plus nitrogen purging systems to ensure a zero-leakage threshold for carbon monoxide and hydrogen mixtures.
CFD-optimized impeller geometry minimizes dust deposits and coal tar crystallization, extending maintenance intervals by up to 300%.
In global industrial corridors, our Coking Oven Gas Pressure Centrifugal Fans play a crucial role across several key process stages:
Operating from our modern 430,000 m² industrial park in Shandong, China, Shandong Zhangqiu Blower Co., Ltd. (Stock code: 002598) integrates advanced digital supply chain systems to streamline production. With 20 holding companies and strategic manufacturing hubs in Wuxi, Dongguan, Chenzhou, and Jinchang, we maintain high manufacturing capacities and delivery speeds.
Our R&D centers in Beijing, Shanghai, Shijiazhuang, and Wuxi are backed by close collaborations with leading universities, including Tsinghua University, Xi'an Jiaotong University, China University of Mining and Technology, and Shandong University. This lets us deliver custom 3D CAD modeling and performance designs in less than 24 hours.
We meet international standards with certifications including CE, ISO9001, ISO14001, and explosion-proof mining security ratings.
Our commitment to safety is backed by 69 authorized patents (including 5 invention patents) and 2 copyrights. Shandong Zhangqiu Blower is a third-level enterprise for safety production standardization, certified in ISO9001, ISO14001, ISO50001 (Energy Management), and ISO 10012 (Measurement Management).
We combine manufacturing capacity with modern design workflows. Our facility is equipped with over 100 sets of high-precision CNC machinery, five-axis machining centers, and three-axis measuring instruments imported from Japan and Germany. By utilizing PLM (Product Lifecycle Management) and CAM systems, we accelerate the transition from custom drawing to final product.
This allows us to maintain tight machining tolerances, reduce aerodynamic noise, and deliver specialized gas-handling fans that keep gas supply loops stable under varying heat loads.
At Shandong Zhangqiu Blower, our corporate philosophy guides everything we do. Driven by a dedicated leadership team, we focus on the core values of employee development, technological innovation, and strong customer relations.
We respect the value of people, fostering individual ownership and responsibility. This human-centric approach drives our continuous innovation in fields like intelligent manufacturing, environmental water treatment, and high-performance blower engineering.
Get professional technical answers regarding coking gas transportation, safety, and equipment selections.
We use multi-stage non-contact labyrinth seals combined with nitrogen gas dynamic purge technology. This keeps gas pressure slightly higher than system line pressure, preventing carbon monoxide, methane, and hydrogen from escaping into the environment.
We construct impellers and casings with high-tensile duplex stainless steel (such as 2205) or apply anti-corrosive coatings like nickel-phosphorus plating or fluoroplastics, depending on the chemical composition of your gas.
We design impellers with optimized backward-curved blades and integrate solvent purging nozzles. This allows for cleaning without dismantling, helping prevent crystallization issues caused by coal tar and naphthalene deposits.
With routine maintenance, our heavy-duty centrifugal gas fans are designed for a service life of over 100,000 operating hours. Key wearing parts like bearings and oil seals can be replaced during scheduled maintenance windows.
Yes. We offer smart gas blowers equipped with vibration and temperature sensors, which feed real-time telemetry to your control room or PLC systems. This allows for predictive maintenance, helping prevent unplanned shutdowns.
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