Import Annular Shaft Kiln — Buy in wholesale FOB from Supplier in China

The Annular Shaft Kiln from Handan Metallurgical Engineering & Research Co. Ltd is a vertical lime kiln with a dual-shaft design, featuring an inner and outer shaft that create an annular calcining space. Originating in 1960s Germany as the Beckenbach Annular furnace, it processes limestone through four sequential zones: pre-heating, upper counter-flow calcining, lower parallel-flow calcining, and cooling/discharge. Raw material is screened, lifted to the kiln top via a hoisting hopper, and evenly distributed by a rotary distributor before descending through the calcining zones.

Constructed for lime production, the kiln integrates multiple subsystems including limestone feeding and distribution (with lime stone hopper, weighing device, and rotary distributor), lime discharging (pusher platform, rod, and hydraulic cylinder), and a fuel distribution system with online low-calorific-value analysis. The combustion system uses regenerative burners with UV flame detection, while the exhaust system incorporates bag dust collectors and dedicated fans. Typical annular shaft kilns operate at temperatures between 900 standard and 1200 standard degrees Celsius, with limestone feed sizes usually ranging from 15 standard to 40 standard mm for optimal calcination efficiency.

This kiln is primarily used by lime producers, cement plants, and steel mills requiring high-purity quicklime for metallurgical or chemical processes. The design allows for continuous operation with consistent heat distribution, reducing energy consumption compared to traditional shaft kilns. Buyers should confirm the kiln’s capacity (typically measured in tonnes per day), fuel type compatibility (commonly coal, gas, or oil), and emissions compliance with local environmental standards before sourcing.

Handan Metallurgical Engineering & Research Co. Ltd is based in Hebei, China, and specialises in the manufacture of lime kilns, including annular shaft kilns, cement kilns, and industrial kilns. The company’s focus on vertical kiln designs reflects its expertise in thermal processing equipment for the lime and cement industries. Its product range covers limestone kilns and related systems, with a stated capability to provide engineering solutions tailored to lime production requirements.

The supplier’s profile confirms a physical presence in Hebei with no additional verification signals such as response rate or average response time. While the company asserts a leading position in PFR kiln supply within China, the listing does not provide independently verifiable details on production capacity, certifications, or client references. Buyers are advised to request technical drawings, material specifications, and performance test data directly from the supplier to assess suitability for their operational needs.