Glass Annealing Lehr
The WANGCHEN Glass Annealing Lehr is an electrically heated annealing furnace designed for controlled cooling and stress relief of glass bottles, jars and other glass products after forming. The system provides controlled temperature management throughout multiple furnace zones to support consistent product quality.
The equipment features a double-layer stainless-steel furnace structure, aluminum silicate fiber insulation, a circulating mesh-belt conveyor with variable-frequency speed control, and forced hot-air circulation. Automatic temperature regulation in each zone helps maintain the required annealing temperature profile.
Mechanical Structure and Advantages
- Durable Construction: Carefully selected materials and an optimized structural design support long service life.
- Thermal Insulation: High-grade aluminum silicate fiber insulation helps reduce heat loss and energy consumption.
- Stable Transmission: Hot-installed roller assemblies and an R-series helical gear reducer support reliable conveyor operation.
- Automatic Zone Regulation: Independent temperature control helps establish a suitable temperature curve for annealing.
- Forced Hot-Air Circulation: Circulating fans distribute heat throughout the furnace to support temperature uniformity.
- Variable-Frequency Drive: Adjustable conveyor speed allows the residence time to be matched to the production process.
Electrical Control System
- Industrial PLC Control: PLC-based automation provides stable operation and coordinated equipment control.
- Centralized Monitoring: A supervisory computer supports operating monitoring, parameter adjustment, maintenance and production-quality analysis.
- Expandable Control Architecture: The system can be configured for coordinated control of multiple lehrs where required.
- Safety Alarms: Over-temperature, conveyor-belt stoppage and circulation-fan fault alarms improve operational monitoring and protection.
Technical Specifications
| Equipment Type | Electric Heating Glass Annealing Lehr |
|---|---|
| Furnace Structure | Double-layer stainless-steel construction |
| Insulation Material | Aluminum silicate fiber |
| Heating Method | Electric resistance wire heating |
| Conveyor System | Mesh-belt conveyor with variable-frequency speed control |
| Air Circulation | Forced hot-air circulation |
| Temperature Control | Automatic multi-zone temperature regulation |
| Electrical Control | Industrial PLC and supervisory computer |
| Alarm Functions | Over-temperature, belt stoppage and circulation-fan failure |
Note: Furnace dimensions, working temperature, conveyor width, heating power, production capacity and zone configuration can be determined according to the customer's glass products and production requirements.
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