Integrated Powder Calcination Solution for Laboratory & Pilot Production
Product Overview:
The ZYLAB Pilot-Scale Rotary Calcination Furnace is an externally heated rotary resistance furnace featuring a 310S stainless steel inner cylinder, specifically designed for pilot-scale calcination and drying of powder and granular materials.
It is widely used for:
- Lithium-ion battery cathode and anode materials
- Advanced ceramic powders
- Highly acidic and alkaline materials
- Functional powders and chemical intermediates
This system supports batch production under controlled atmospheres, and integrates:
- Inert gas preheating system
- Rotary furnace body with adjustable tilt
- Afterburner exhaust treatment system
The result is a high-efficiency, environmentally compliant calcination solution for R&D and pilot-scale manufacturing.
Key Features:
- 310S Stainless Steel Rotary Tube – excellent corrosion and high-temperature resistance
- Adjustable Inclination (-5° to +15°) – optimized material flow and residence time
- Variable Rotation Speed (1–3 rpm) – precise control of calcination uniformity
- Integrated Inert Gas Preheating System – improves thermal efficiency and process stability
- Afterburner Exhaust Treatment System – effective removal of VOCs and harmful gases
- Programmable PID Control System – fully automated heating curves
- Modular Design – easy maintenance and customization
System Composition:
1. Furnace Body
1.1 Furnace Frame
The furnace adopts a two-layer structure (upper and lower frame):
- Upper frame: semi-cylindrical metal shells housing furnace tube, insulation, and refractory modules
- Lower frame: integrates electrical control system and lifting mechanism
- Equipped with fixed and mobile wheels with brake system for flexible installation
1.2 Refractory & Insulation System
- High-purity vacuum-formed alumina fiber modules
- Excellent thermal insulation and energy efficiency
- Uniform heat distribution
1.3 Rotary Furnace Tube
- Material: 310S stainless steel
- Internal scraper blades improve material mixing and prevent agglomeration
- Designed for continuous tumbling and uniform calcination
1.4 Heating Elements
- High-performance Fe-Cr-Al alloy heating wire (0Cr27Al7Mo2)
- Embedded structure ensures efficient and stable heating
2. Lifting System
- Driven by electric push rod
- Adjustable tilt angle: -5° to +15°
- Allows precise control of material residence time and discharge rate
- Equipped with limit switches and travel protection for safe operation
3. Mechanical Transmission System
- Chain-driven rotation system ensures stable and reliable operation
- Includes:
- Gear motor (0.12 kW)
- Chain and sprocket mechanism
- Support wheel assembly
- Adjustable rotation speed: 1–3 rpm
4. Inlet and Exhaust System
- Dual-end rotary joints for smooth sealing and rotation
- Gas inlet system includes:
- Stainless steel pipelines
- Ball valves
- Flow control components
- Supports inert gas protection (e.g., N₂, Ar)
- Discharge port uses flange + O-ring silicone sealing for high airtightness
5. Inert Gas Preheating System
The inert gas preheater is an integrated electric heating unit designed to preheat protective gases before entering the furnace chamber, significantly improving thermal efficiency and process consistency.
Key Features:
- Heating element: stainless steel heating tubes
- Internal structure:
- Multi-layer baffles and flow guides
- Extended gas flow path for enhanced heat exchange
- Heating mechanism:
- High-temperature resistance wire generates heat
- Heat is transferred via crystallized magnesium oxide insulation to the tube surface
- Gas is uniformly heated before entering the furnace
6. Integrated Afterburner Exhaust Treatment System
The system includes an afterburner unit designed for secondary thermal oxidation of exhaust gases, ensuring environmentally compliant emissions.
Functions:
- Further heats exhaust gases to high temperatures
- Decomposes:
- Tar substances
- Volatile organic compounds (VOCs)
- Condensable particulate matter
7. Control System
- Integrated control box located in lower frame
- Includes:
- Circuit breakers
- Power regulators
- Safety protection modules
- PID intelligent temperature controller:
- Programmable heating curves
- Fully automatic operation
- Synchronizes:
- Furnace rotation
- Heating process
- Tilt adjustment
Applications:
- Lithium-ion battery materials calcination
- Ceramic powder sintering (pilot scale)
- Chemical powder drying and activation
- Catalyst preparation
- Metallurgical powder treatment
Technical Parameters of Pilot-Scale Rotary Calcination Furnace:
| Type | Equipment Technical Specifications | ||||
| Heating system
|
Furnace dimensions | L×W×H=2060mm×1080mm×1580mm (subject to actual dimensions) | |||
| Reaction Muffle Dimensions | 310S stainless steel, inner diameter 309mm × 1250mm, 310S insulation screen sealed, wall thickness 8mm | ||||
| Operating Temperature | ≤1100℃ | ||||
| Effective Volume | 30L when horizontally sintering in the furnace tube, 20L~25L when sintering with up-and-down oscillation | ||||
| Heating Rate | Recommended ≤20℃/min | ||||
| Heating Element | HRE resistance heating wire | ||||
| Furnace Chamber Material | Alumina fiber insulation refractory material | ||||
| Temperature Zone Length | 400+400+400mm | ||||
| Temperature Control Precision | ±1℃ with automatic temperature correction function | ||||
| Sealing Method | Self-pressurizing, rotary sealing | ||||
| Temperature Measurement Element | K-type thermocouple (3 sets of thermocouple control mode for more uniform temperature control)） | ||||
| Gas system configuration | Flow Meter Type | 2-way rotameter (selectable range) | |||
| Pressure Gauge | Mechanical vacuum pressure gauge | ||||
| Regulating Valve Type | Manual regulating valve | ||||
| Pipeline Connection Method | Double ferrule PTFE pipe connection (φ6.35) | ||||
| Pressure Range | -0.1 to 0.15 MPa (absolute pressure) | ||||
| Vacuum system | Vacuum Pump Type | Direct drive rotary vane vacuum pump (dual-stage rotary vane) | |||
| Pumping Speed | 14.4m³/h | ||||
| Inlet/Exhaust Connection Port | KF25（mm） | ||||
| Motor Speed | 1440（rpm） | ||||
| Operating Ambient Temperature | 5～40℃ | ||||
| Noise Level（dB） | ≤56 | ||||
| Vacuum Gauge Type | Digital vacuum gauge | ||||
| System Ultimate Vacuum | ≤50Pa | ||||
| Bellows Length | 1200mm | ||||
| Rotational System | Transmission Method | Chain transmission mechanism | |||
| Explosion-Proof Motor | Speed-regulated gear reduction motor | ||||
| Tube Rotation Speed | Adjustable from 1 to 3 rpm | ||||
| Tilting Angle | Adjustable from -5 to 15 degrees | ||||
| Control System | Control Mode | 101EP operating system with switchable English/Chinese graphical interface, 7-inch true color touch screen input, intelligent human-machine interaction mode | |||
| Temperature Correction | Non-linear correction of the temperature difference between the furnace temperature and the sample temperature throughout the process | ||||
| Temperature Curve Settings | Main heating can store up to 15 temperature curves, each curve can set 30 segments of “time-temperature curve”, real-time monitoring, dynamically and accurately displaying “time-temperature curve” | ||||
| System Protection | Over-temperature alarm, over-current protection, thermocouple disconnection prompt | ||||
| Safety Protection | Audible and Visual Alarm | Equipped with overpressure and buzzer alarms | |||
| Safety Gas Circuit Control | Automatically cuts off both gas intake devices if the pressure exceeds the set limit | ||||
| Others | Electrical Specifications | Three-phase 380V, 50Hz, 30KW | |||
| Included Accessories | 1 unit furnace tube, 1 set of sealing flanges, 1 unit control cabinet, 1 user manual, miscellaneous tools, etc. | ||||
| Warranty | 12 months warranty for the equipment, 24 months for the touchscreen system, lifetime support. | ||||
| Anti-Clogging Solution for Exhaust Outlet | Exhaust outlet size: 39mm (inner diameter φ32mm). The exhaust structure includes a large sedimentation chamber before the gas exits through the outlet.
|
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| Automatic Level Control | The swinging hover feature includes an automatic leveling function. The equipment is equipped with an angle controller, allowing users to set any angle on the screen. The furnace body will automatically elevate to the designated angle. | ||||
Technical Parameters of Inert Gas Preheating System:
| Rated Power | 700W |
| Temperature | Range: RT – 700.C(adjustable,can be set through the temperature controller as needed.)Max. up to 700.C. |
| Heating Rate | ≤30 ℃/min |
| Heating Zone Length | 200mm |
| Inlet | Φ6.35mm |
| Outlet | Φ8mm |
| Flow Range | 0.5-8L/min(other range optional, such as 3-30L/min, 10-100L/min,etc )The flow rate is adjustable. |
| Dimensions (mm) | L450*H360*D300 |
For More Content
Please read our blog: The Differences Between Calcination and Sintering Processes
For More Options on Rotary Furnaces
Please visit our website [Rotary Furnaces Collection]
For More Options on Calcination Furnaces
Please visit our website [ Calcination Furnaces Collection ]
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