In the lime industry, Burner Beam Kilns (BBK) and Annular Shaft Kilns (ASK) are the two most widely adopted single-shaft lime kiln technologies. They offer compact structure, moderate investment, operational flexibility, and are extensively used in metallurgy, chemicals, and building materials. The performance of these kilns depends critically on the reliability, advanced technology, and precise matching of key equipment.
As a market promotion expert, we systematically present the core equipment matrix for BBK and ASK, along with a full-chain solution covering engineering, refractories, burners, and hydraulic systems.
| Category | Equipment | Function | Suitable Kiln Type |
|---|---|---|---|
| Hydraulic System | Hydraulic Station | Provides stable power for discharging valves, sealing valves, etc. | BBK / ASK |
| Control Valve | Electric Regulative Valve | Precise control of air & gas flow, enabling closed-loop temperature control | BBK / ASK |
| Combustion System | Worldwide Latest Generation Burner Beam | Uniform heat supply, extended flame coverage, low NOx | BBK-specific |
| Heat Recovery | Heat Exchanger | Recovers waste heat to preheat combustion air, improving thermal efficiency | BBK / ASK |
| Weighing & Feeding | Weighing Hopper | Accurate metering of limestone feed, ensuring stable ratio | BBK / ASK |
| Charging System | Rotary Distributor | Even material distribution, preventing segregation and channeling | BBK / ASK |
| Discharging System | Lime Discharging Valve | Continuous or indexed discharge, maintaining stable bed level | BBK / ASK |
| Engineering & Refractories | All Engineering, Critical Bricks | Full-cycle service from design to commissioning; various materials/OEM critical bricks | BBK / ASK |


Our equipment is optimized specifically for these two mainstream single-shaft kiln types:
Burner Beam Kiln (BBK): Tailored for Burner Beam mounting interfaces and heat load distribution, ensuring uniform temperature between upper and lower beams.
Annular Shaft Kiln (ASK): Equipment (regulating valves, heat exchangers, distributors) matched to annular space airflow characteristics, controlling temperature differences between inner and outer shells.
Whether your existing kiln follows European design, domestic design, or other technology routes, our key equipment enables seamless replacement or upgrade.
Our key equipment supports single-shaft lime kilns from 100 tpd to 600 tpd:
Small capacity (100-250 tpd): Ideal for premium quicklime, high-reactivity lime lines
Medium capacity (300-450 tpd): Mainstream industrial scale, best cost-performance
Large capacity (500-600 tpd): Meets demands of large steel mills and calcium carbide plants
With modular hydraulic stations, electric regulative valves, and weighing hoppers, capacity flexibility is easily achieved.
We have in-house R&D + manufacturing capabilities for all types of single-shaft kiln burners:
Material options: Heat-resistant stainless steel (310S, 253MA), nickel-based alloys (Inconel 600/601), cobalt-based alloys, etc.
Structural forms: Burner Beam for BBK, or annular burners for ASK
Design optimization: CFD flow simulation to ensure flame length, stiffness, and low NOx emissions
Applications: Natural gas, coke oven gas, mixed gas, fuel oil, or dual-fuel
We can customize heat-resistant steel burners based on your fuel calorific value, kiln dimensions, and target output. We also provide on-site measurement and OEM replacement services for imported burners.
Material options: Wear-resistant cast iron, heat-resistant steel, silicon carbide composites, corundum-mullite, etc.
OEM service: Localization of critical parts for imported brands (e.g., Maerz, Terruzzi, Metso) – drawing confirmation + reverse engineering
Critical bricks: High-alumina bricks, magnesium-aluminum spinel bricks, silicon-mullite bricks for different zones (preheating, calcining, cooling) of BBK or ASK – custom sizes available
Dual-kiln expertise: Proficient in both BBK and ASK equipment logic – avoids specification errors
Latest generation burner beam: Directly improves thermal efficiency and lime reactivity
In-house heat-resistant steel burner manufacturing: Shortens delivery lead time, reduces import dependence
Closed-loop engineering service: From hydraulic station commissioning to refractory installation – one-stop support
Contact our kiln equipment experts today for a retrofit or upgrade proposal tailored to your BBK or ASK.