Regenerative Sodium Silicate Furnace — Cambodia
Regenerative Sodium Silicate Melting Furnace Project in Cambodia
Meibao supplied a regenerative melting furnace system for a solid sodium silicate production project in Cambodia.
Solid sodium silicate, also known as solid water glass, is produced from soda ash and quartz sand through batching, high-temperature melting, cooling and forming. The system integrates raw-material feeding, furnace melting, regenerative heat recovery, chain-plate cooling and centralized control.
Project Information
| Project Location | Cambodia |
| Equipment | Regenerative sodium silicate melting furnace |
| Final Product | Solid sodium silicate |
| Common Product Name | Solid water glass |
| Main Raw Materials | Soda ash and quartz sand |
| Production Method | High-temperature melting |
| Melting Temperature | 1350–1450°C |
| Forming Method | Chain-plate cooling and forming |
| Heat-Recovery Method | Regenerative combustion-air preheating |
| Project Scope | Process design, equipment manufacturing, installation guidance, commissioning and operator training |
| Project Status | Equipment supplied for the Cambodia project |
Project Overview
Soda ash and quartz sand are weighed and mixed according to the production formula. The prepared materials are transferred to the storage silo and continuously fed into the melting furnace.
Inside the furnace, the raw materials react and melt at 1350–1450°C, forming molten sodium silicate in the molten pool.
The molten material is discharged from the furnace and transferred to the chain-plate cooling and forming conveyor. During conveying, the material cools and solidifies into glassy solid sodium silicate.
A regenerative heat-recovery system uses high-temperature furnace-tail flue gas to preheat the combustion air and fuel gas before they enter the furnace.
Production Process
Soda Ash and Quartz Sand
→ Weighing and Batching
→ Raw-Material Mixing
→ Bucket Elevator
→ Storage Silo
→ Continuous Furnace Feeding
→ 1350–1450°C Melting
→ Molten Sodium Silicate
→ Chain-Plate Cooling and Forming
→ Finished-Product Hopper
→ Storage or Packing
Regenerative Heat-Recovery Process
Approximately 1300°C Furnace-Tail Flue Gas
→ Regenerative Chamber
→ Heat Storage
→ Combustion-Air Preheating to Approximately 1100°C
→ Fuel-Gas Preheating to Approximately 900°C
→ Flue and Chimney
→ Final Exhaust Temperature of Approximately 200°C
Process Description
1. Raw-Material Batching
The production system supports manual weighing or automatic weighing and batching.
Soda ash and quartz sand are measured according to the production formula and mixed before entering the feeding system.
2. Material Conveying
The prepared raw materials are transferred to the storage silo by the bucket elevator.
The material is then continuously introduced into the melting furnace through the feeding and pushing system.
3. High-Temperature Melting
Soda ash and quartz sand react inside the furnace at 1350–1450°C.
The raw materials gradually melt and form liquid sodium silicate in the molten pool.
4. Regenerative Heat Recovery
The furnace-tail flue gas leaves the high-temperature section at approximately 1300°C and passes through the regenerative chamber.
The recovered heat preheats the combustion air to approximately 1100°C and the fuel gas to approximately 900°C.
After heat recovery, the final exhaust-gas temperature is reduced to approximately 200°C.
5. Airflow Reversing
The reversing system periodically changes the flow direction through the regenerative chambers.
One chamber stores heat from the outgoing flue gas, while the other chamber releases heat to the incoming combustion air and fuel gas.
6. Molten Material Discharge
Molten sodium silicate leaves the molten pool through the furnace outlet and enters the forming section.
The discharge system connects the continuous melting process with the downstream cooling equipment.
7. Chain-Plate Cooling and Forming
The molten sodium silicate is transferred onto the chain-plate cooling conveyor.
During conveying, the material gradually cools and forms glassy solid sodium silicate pieces.
8. Product Collection
The cooled product is transferred to the finished-product hopper for storage, stacking or subsequent packing.
9. Centralized Control
The control system monitors batching, furnace feeding, combustion, furnace temperature, airflow reversing, heat recovery and product forming.
Equipment Series Technical Data
The following figures describe Meibao’s solid sodium silicate furnace series and do not represent the installed capacity of the Cambodia unit:
|
Item |
Technical Data |
|
Daily production range |
10–160 tons/day |
|
Product modulus range |
2.0–3.5 |
|
Main raw materials |
Soda ash and quartz sand |
|
Melting temperature |
1350–1450°C |
|
Furnace-tail flue-gas temperature |
Approximately 1300°C |
|
Preheated combustion-air temperature |
Approximately 1100°C |
|
Preheated fuel-gas temperature |
Approximately 900°C |
|
Final exhaust-gas temperature |
Approximately 200°C |
|
Batching configuration |
Manual or automatic |
|
Forming method |
Chain-plate cooling and forming |
Main Equipment and Systems
Raw-material storage system
Manual or automatic weighing system
Batching and mixing system
Bucket elevator
Raw-material silo
Furnace-feeding system
Material pusher
Regenerative melting furnace
Molten pool
Combustion system
Regenerative chambers
Airflow-reversing system
Flue and chimney
Chain-plate cooling conveyor
Finished-product hopper
Temperature-monitoring system
Centralized electrical control system
Steel platform and inspection structure
Main Technical Characteristics
Regenerative Heat Recovery
High-temperature furnace-tail flue gas is used to preheat the combustion air and fuel gas before they enter the furnace.
High-Temperature Continuous Melting
The furnace maintains the 1350–1450°C conditions required for the reaction and melting of soda ash and quartz sand.
Manual or Automatic Batching
The raw-material system can be configured with manual weighing or automatic metering and batching.
Chain-Plate Forming
Molten sodium silicate is continuously cooled and formed on the chain-plate conveyor.
Centralized Process Control
Batching, feeding, combustion, heat recovery, furnace temperature and product forming are coordinated through the control system
International Application Experience
The Cambodia project is one of Meibao’s overseas solid sodium silicate furnace applications.
Similar regenerative furnaces and solid sodium silicate production systems have also been supplied to projects in Indonesia and other international markets.
These projects cover different production capacities, product moduli and plant-layout requirements.
Technology Background
Meibao’s regenerative sodium silicate furnace combines high-temperature melting, regenerative combustion, airflow reversing, heat recovery and continuous chain-plate forming.
The complete production system covers the process from raw-material batching to finished solid sodium silicate collection.
Project Delivery
The Cambodia project supplied an integrated sodium silicate melting and forming system covering:
- Raw-material batching
- Material conveying and feeding
- High-temperature melting
- Molten-pool operation
- Regenerative heat recovery
- Airflow reversing
- Chain-plate cooling and forming
- Finished-product collection
- Centralized process control
- Installation and commissioning support
Meibao’s Project Capabilities
Meibao provides solid sodium silicate production services covering:
- Production-process design
- Raw-material batching-system design
- Regenerative furnace engineering
- Combustion-system configuration
- High-temperature heat-recovery design
- Equipment manufacturing
- Chain-plate forming-system integration
- Production-line layout
- Installation guidance
- Commissioning
- Operator training
- Overseas technical service
Contact Us
Planning a solid sodium silicate production project?
Send us your target capacity, product modulus, raw-material information, fuel conditions, packing requirements and site layout. Meibao will prepare the corresponding furnace and production-line configuration.