Three-Zone Vertical Tube Furnace with Integrated Atmosphere Control System

Multi-Zone Vertical Tube Furnace with Gas Control Cabinet Specifications

Applications:Widely used in ceramics, metallurgy, electronics, glass, chemical industry, machinery, refractory materials, new material development, specialty materials, construction materials, and other fields.

Features:

1. Temperature Control:Control accuracy: ±1°C Temperature uniformity: ±1°C (depending on heating chamber size)
2. User-Friendly Operation:
   • Programmable with PID auto-tuning
   • Fully automatic operation (heating, holding, cooling)
   • Optional computer interface for remote control (start/stop/pause, set heating curves, store heating curves, view historical curves, etc.). Free software included (see: Computer Control System).
3. Furnace Tube Options:Alumina 99 ceramic tube or quartz glass tube
4. Sealing System:Stainless steel KF metal flange seal (dual O-ring design)
5. Exterior Temperature:Near room temperature for safe operation
6. Safety Features:Dual-circuit protection
7. Insulation & Heat Resistance:Lightweight refractory materials with excellent insulation and high-temperature resistance

Gas Control Cabinet Technical Specifications

Gas Inlet TypesStandard configuration: 2 gas types (configurable for 1-10 types)

Gas Mixing SystemPrecise gas ratio control through individual flow meter adjustment

Valve SystemStandard: Imported stainless steel valvesOptional: Standard valves/stainless steel valves/solenoid valves

Flow MeasurementStandard: Two 0-300 mL/min flow metersOptions: Mass flow controllers or float-type flow meters (selectable based on gas type and quantity)

Pressure MonitoringStandard: Dual-range analog pressure gauge (positive/negative pressure)Optional: Digital vacuum gauge

Vacuum SystemTwo-stage rotary vane vacuum pump Pumping speed: 2 L/min

Gas Delivery SystemStandard: Specialized PV gas tubing  Optional: Clean stainless steel piping (for high purity or corrosive gases)

Pressure Protection System

• Safety mechanism prevents hazards from:
  • Closed exhaust ports
  • Exhaust blockages
  • Excessive furnace tube pressure
• Operation principle:
  • Pressure switch/sensor detects abnormal conditions
  • Control module automatically:
    • Closes intake solenoid valve
    • Activates exhaust solenoid valve
    • Triggers alarm system
• Ensures safe furnace operation

Gas Leak Detection System

• Continuous monitoring of work environment for:Toxic gases,Hazardous gas concentrations
• Safety protocol activates when thresholds exceeded:Immediate furnace shutdown,Gas supply cutoff,Exhaust port opening,Ventilation system activation
• Provides safer working environment

Additional Equipment

• Lift door：Pneumatic door opening, controlled by foot pedal, with hot surface facing away from the operator.
• Touchscreen: Multilingual menu, multiple temperature rise process curve storage, historical curve storage, and data reports (7 inches).
• Computer Control: Controls furnace start, pause, stop, stores historical curves, sets temperature rise curves, reads temperature rise curves, sets parameters, etc.
• Siemens PLC Control: Real-time data reading with open ports for data communication with upstream and downstream equipment.
• Manual or automatic gas supply system
• Observation Window: Designed on the furnace door with high-temperature-resistant quartz glass.
• Movable Casters: Two swivel casters and two fixed casters.
• Rapid Cooling: Achieved with a frequency inverter and centrifugal fan for programmable cooling control.
• Quick Discharge Rack: The material rack is made of high-temperature steel, with wear-resistant heavy-duty refractory bricks on the top, enabling rapid
• transfer of materials from the furnace to an external platform in high-temperature environments.
• Multi-Point Temperature Control: Independent temperature control on multiple sides for improved temperature uniformity.
• High temperature furnace chamber with multi-sided heating for very good temperature uniformity.
• Stirring Fan: Metal stirring fan, can be linked with PLC to automatically start at designated temperature segments.
• Independent Control Cabinet: Separate control cabinet with an extended control cable length (up to 5 meters).
• Heat Storage Furnace Bottom: The furnace bottom sinks 50mm with a hollow design, supported by multiple vertical columns, increasing Ceramic Load-Bearing Plate and ensuring uniform heat distribution at the bottom.
• Exhaust Gas Treatment: Adds VOC exhaust gas treatment furnace with a capacity of 40m³,H or 80m³,H.
• Corrosion-Resistant Furnace Lining: Furnace lining material resistant to acids, alkalis, and hydrofluoric acid corrosion.
• Heating Element Protection: Prevents contamination from powder and corrosion from volatile substances and scratch.
• Clean Furnace Lining: Furnace lining made of ceramics, high-temperature glass, and high-temperature metals to prevent dust and volatile substances.
• Over-temperature limiter with adjustable cutout temperature as temperature limiter to protect the furnace and load
• Customizable charging racks according to requirements, for loading the furnace in two levels.