Coal & Biomass Fired Thermal Oil Bo

Aix Boiler coal & Biomass fired thermal oil heater operates based on the principle of layer combustion + coil-type liquid phase forced circulation heat exchange. Using coal, biomass pellets, sawdust, straw, rice husk, etc. as fuel and thermal oil as heat carrier, the fuel is fully burned through the grate to produce high-temperature flue gas, which heats the thermal oil in coils by radiation and convection. Driven by the circulating oil pump, it realizes closed-cycle heating supply, and can stably output high-temperature heat energy up to 350℃ under low pressure ≤0.8MPa. The whole heater is designed and manufactured in strict accordance with the standards of China Boiler and Boiler Water Treatment Association, GB/T 17410-2023 Organic Heat Carrier Furnace and TSG 11-2020, with thermal efficiency up to 88%–92%, safe, stable, extremely low operating cost and wide application range. As the core high-temperature industrial heating equipment of Aix Boiler brand, this product is independently developed, produced and inspected by the original factory with full-chain quality control. Adopting horizontal coil structure, automatic feeding, automatic slag removal and intelligent temperature control technology, it is specially designed for chemical, textile printing and dyeing, food, wood, building materials, asphalt heating, pharmaceutical and other scenarios requiring stable high-temperature heat source. It can fully replace traditional coal-fired thermal oil furnaces, helping enterprises achieve environmental protection compliance, energy saving and stable production.

1. Core Product Parameters (Aix Coal & Biomass Fired Thermal Oil Heater)

2. Working Principle & Technical Core

Aix coal & biomass fired thermal oil heater adopts a horizontal three-pass coil full wet-back structure, consisting of eight core parts: furnace body, chain grate, combustion system, coil heating surface, economizer, feeding system, slag removal system and fully automatic control system. It is a high-efficiency organic heat carrier furnace equipment. During operation, fuel is evenly spread on the grate through automatic feeder and enters the furnace for gradual drying, gasification and full combustion. High-temperature flue gas completes the first-pass radiation heat exchange along coils, enters the second-pass convection heat exchange through the combustion chamber, then enters the third-pass enhanced heat exchange, and finally recovers waste heat through the economizer before exhausting. Thermal oil is rapidly heated in coils, driven by the circulating oil pump to the heat-consuming equipment to release heat, and then returns to the furnace for reheating, realizing continuous high-temperature heating supply cycle after cycle. Equipped with PLC intelligent control system, the heater realizes automatic feeding, automatic ignition, automatic constant temperature, automatic circulation, automatic slag removal and fault self-test alarm, truly unattended and stable operation.

3. Core Features & Original Factory Advantages

Low Pressure & High Temperature, Safe and Efficient
Can provide high-temperature heat energy up to 350℃ under low pressure ≤0.8MPa, no need for high-pressure vessels and complex water treatment, simpler system and safer operation, completely solving potential safety hazards of high-pressure steam systems.

Wide Fuel Range, Extremely Low Operating Cost
Capable of burning coal, biomass pellets, sawdust, straw, rice husk and other fuels. Renewable and low-cost biomass fuel saves 40%–70% of operating cost compared with gas and Electric Boilers, greatly reducing enterprise burden.

High Thermal Efficiency, Remarkable Energy Saving
Three-pass enhanced heat exchange + threaded coil + economizer design fully absorbs heat, with thermal efficiency up to 88%–92%, 15%–25% more energy-saving than traditional boilers, greatly improving fuel utilization.

Fully Automatic Operation, Labor-saving
One-key start, automatic feeding, combustion, constant temperature, circulation, slag removal and ash cleaning. Supports remote monitoring, no frequent manual operation required, saving labor cost.

Precise Temperature Control, Stable Heating
Adopting PID high-precision temperature control with accuracy ±1℃, continuously adjustable temperature, fast heating and uniform heating, stably coping with load fluctuation, ensuring constant production process temperature and improving product quality.

Environmental Compliance, Adapt to New Regulations
Equipped with secondary air, energy-saving furnace arch and dust removal interface, more complete combustion, low smoke, sulfur and nitrogen emissions. Can be equipped with dust removal equipment to meet environmental protection requirements.

Strong Support from Original Factory
Aix Boiler independent R&D and production, no middleman price difference, transparent price, stable supply. Provides full-parameter customization and lifelong technical support, fast after-sales response.

4. Performance & Function of High-Temperature Thermal Oil

The heater is equipped with special high-temperature thermal oil, featuring high boiling point, low vapor pressure, high thermal stability and excellent heat transfer performance. It does not vaporize, coke or deteriorate easily at high temperature, ensuring long-term stable operation, effectively extending equipment life and guaranteeing efficient and stable heating system. As an intermediate heat transfer medium, thermal oil can realize long-distance, multi-point and high-precision constant temperature heating, meeting the high-temperature heating needs of various complex processes.

5. Application Scenarios & Industry Solutions

With core advantages of low pressure & high temperature, low cost, high efficiency, stability and durability, Aix coal & biomass fired thermal oil heater is widely used in various high-temperature heating projects:

• Chemical Industry: Reactor heating, distillation, concentration, polymerization, drying

• Textile Printing & Dyeing: Heat setting, baking, steaming, dyeing, drying

• Food Processing: Baking, drying, melting, sterilization, cooking

• Wood & Building Materials: Wood drying, plate hot pressing, gypsum board drying, concrete curing

• Road Construction: Asphalt heating, asphalt tank insulation, road construction heating

• Pharmaceutical Industry: Traditional Chinese medicine extraction, liquid concentration, drying, sterilization

• Plastic & Rubber Industry: Injection molding, extrusion, calendering, vulcanization, hot pressing

• Old Boiler Renovation: Replace coal-fired thermal oil furnaces to achieve environmental compliance and energy upgrading

6. Manufacturing Process & Quality Compliance

Aix coal & biomass fired thermal oil heater adheres to standardized lean manufacturing in the original factory, strictly implementing national organic heat carrier furnace standards and special equipment safety specifications. Furnace body adopts high-quality boiler special seamless steel pipe coil forming, high temperature resistance, corrosion resistance, safe and reliable pressure bearing; heating surface adopts three-pass coil structure, large heat exchange area, uniform heating, less coking, longer service life; grate adopts heavy-duty chain grate, stable operation, high temperature resistance and not easy to deform; front and rear arches are poured with refractory concrete, full combustion and long service life. Each heater undergoes four strict tests before delivery: hydrostatic test, air tightness test, safety protection test and commissioning test. Only qualified products are delivered with complete certificates including boiler qualification, inspection report and operation manual, ensuring smooth acceptance and filing.

7. Operation, Maintenance & After-sales Service

To ensure long-term stable operation, users should use qualified thermal oil and fuel, regularly check oil quality, clean coil ash, inspect Burners and safety accessories, operate in accordance with the instruction manual, prohibit over-temperature and overload operation. As the original factory of coal & biomass fired thermal oil heaters, Aix Boiler provides free on-site survey and scheme design, professional installation, commissioning and operation training, 12-month warranty and lifelong maintenance service, fast spare parts supply and emergency repair, regular return visits and system optimization upgrades, providing full protection for users.

8.Graphic introduction

Choosing Aix coal & biomass fired thermal oil heater means choosing a modern high-temperature heating solution with low cost, high efficiency and reliability. Welcome customers all over the world to contact us for negotiation and on-site inspection!