Coal & Biomass Fired Hot Air Boiler

Aix Boiler coal & Biomass fired hot air furnace operates based on the principle of layer combustion and forced convection heat exchange. Using coal, biomass pellets, sawdust, straw, rice husk, etc. as fuel, the fuel is fed into the furnace layer by layer through the grate and fully burned to produce high-temperature flue gas, which efficiently exchanges heat with air through an enhanced heat exchange structure. The fan outputs stable and clean hot air. The equipment is available in direct combustion type and indirect heat exchange type, which can provide continuously adjustable hot air from ambient temperature to 350℃ under normal pressure, with thermal efficiency up to 88%–95%. The whole furnace is designed and manufactured in strict accordance with the standards of China Boiler and Boiler Water Treatment Association and NB/T 34040-2017 Technical Conditions for Small Biomass Hot Air Furnaces, featuring safety, stability, extremely low operating cost and wide application range. As the core industrial hot air equipment of Aix Boiler brand, this product is independently developed, produced and inspected by the original factory with full-chain quality control. Adopting horizontal packaged structure, automatic feeding, automatic slag removal and intelligent temperature control technology, it is specially designed for food drying, wood drying, chemical industry, coating, building materials, mine heating, greenhouse breeding and other scenarios requiring continuous hot air. It can fully replace traditional coal-fired hot air furnaces, helping enterprises achieve environmental compliance, energy saving and stable production.

1. Core Product Parameters (Aix Coal & Biomass Fired Hot Air Furnace)

2. Working Principle & Technical Core

Aix coal & biomass fired hot air furnace adopts enhanced heat exchange and fully enclosed combustion structure, consisting of five core parts: combustion system, heat exchange chamber, circulation fan, intelligent control system and safety accessories. Indirect type: Fuel burns to produce high-temperature flue gas, which exchanges heat with air in complete isolation. The hot air is 100% clean and pollution-free, suitable for food, medicine and other clean scenarios. Direct combustion type: After combustion, fuel directly mixes with air for heating, with simpler structure and higher thermal efficiency, suitable for industrial drying and heating. Equipped with PLC intelligent control system, the furnace realizes automatic ignition, automatic temperature control, automatic air volume and combustion ratio adjustment. It will protect and shut down immediately in case of over-temperature, flameout or air pressure abnormality, truly realizing unattended and safe operation.

3. Core Features & Original Factory Advantages

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 hot air furnaces, greatly reducing enterprise burden.

Clean Hot Air, Wide Application
Indirect type realizes gas-gas separation, with no smoke or pollution, meeting the requirements of food, medicine and precision drying. Direct combustion type has higher thermal efficiency and faster heating, suitable for industrial drying and heating.

Adjustable Temperature, Precise Control
Continuously adjustable from ambient temperature to 350℃, PID intelligent control accuracy ±1℃, constant and uniform temperature to ensure product quality consistency.

High Efficiency & Energy Saving, Low Operating Cost
Adopting threaded heat exchange tubes and turbulence enhanced structure, thermal efficiency up to 88%–95%, 15%–30% more energy-saving than traditional furnaces.

Fully Automatic Operation, Labor-saving
One-key start, automatic ignition, constant temperature, purging, fault self-test and alarm, support remote monitoring, no special personnel required.

Safe & Reliable, Multiple Protections
Full-dimensional safety devices including flameout protection, over-temperature protection, air pressure protection, leakage protection and explosion-proof protection.

Strong Support from Original Factory
Independent R&D and production, no middleman price difference, transparent price, stable supply, full-scenario customization and lifelong technical support.

4. Application Scenarios & Industry Solutions

Aix coal & biomass fired hot air furnace is widely used in:

• Food & Medicine: Grain, fruit, meat, tea, medicinal materials drying and dehydration

• Wood & Building Materials: Wood drying, plate drying, gypsum board, insulation material drying

• Coating Industry: Hardware, home appliances, furniture, auto parts spraying and curing

• Chemical & Pharmaceutical: Chemical raw materials, powder, medicinal materials drying

• Textile Printing & Dyeing: Cloth, non-woven fabric, textile setting and drying

• Agriculture & Breeding: Greenhouse heating, seedling insulation, farm heating

• Mine & Industrial: Mine wellhead anti-freezing, workshop heating, equipment preheating

• Other Fields: Casting sand core, abrasive tool drying, sludge drying, workshop heating

5. Manufacturing Process & Quality Compliance

Aix coal & biomass fired hot air furnace adheres to standardized manufacturing in the original factory. The furnace body adopts high-quality high-temperature resistant steel, and heat exchange elements adopt stainless steel threaded tubes with large heat exchange area, corrosion resistance and long service life. Compact structure, small footprint, easy installation. Each furnace undergoes strict combustion test, temperature control test and safety protection test before delivery, with complete qualification certificates.

6. Operation, Maintenance & After-sales Service

To ensure long-term stable operation, users should regularly clean ash, check Burners and fans, ensure normal fuel and ventilation. As the original factory, Aix Boiler provides free scheme design, installation and commissioning, operation training, 12-month warranty, lifelong maintenance and fast spare parts supply.

7.Graphic introduction

Choose Aix coal & biomass fired hot air furnace, choose a modern hot air solution that is efficient, clean, safe and environmentally friendly. Welcome new and old customers to contact us!