Vertical Fixed Grate Biomass Fired Thermal Oil Boiler

Product Introduction：

The Vertical Fixed Grate Biomass Fired Thermal Oil Boiler is a specialized industrial heating device that utilizes biomass-such as wood chips, sawdust, rice husks, palm shells, coconut shells, corncobs, straw, and other agricultural or forestry residues-as fuel to generate high-temperature heat through a thermal oil (also known as thermic fluid or heat transfer oil) medium

Core Selling Points

1.Low Pressure, High Temperature – Inherent Safety

2.Exceptional Fuel Flexibility – Turn Waste into Energy

3.Superior Temperature Control for Quality-Critical Processes

4.Quick Installation – Factory Pre-Assembled

5.Environmentally Sustainable – Carbon Neutral Heating

Operating principle

1. Fuel combustion

Biomass fuel is manually or mechanically fed onto a fixed grate. The primary air passes through the fuel layer below the grate to assist combustion, while the secondary air is replenished from above to fully combust volatile matter, forming high-temperature flames and flue gas.

2. Heat transfer

High temperature flue gas rushes upwards towards the coils inside the boiler. The heat from the flue gas is transferred to the heat transfer oil through the pipe wall, and after the flue gas cools down, it is discharged from the chimney.

3. Thermal oil circulation

Circulating oil pump forces heat transfer oil to flow in a closed circuit:

Cold oil → Boiler coil absorbs heat → High temperature oil → Transport to heating equipment → Release heat → Cold oil returns to the boiler, and so on.

4. Automatic temperature control

The PLC controller automatically adjusts the induced draft fan and secondary air volume based on the outlet oil temperature to maintain a stable temperature of ± 1 ℃.

Main parameters and performance：

Applicable Industries & Applications

• Chemical & Petrochemical Industry

Reactor heating for polymerization, esterification, and distillation processes

Oil and grease processing including vegetable oil refining and edible oil deodorization

Resin and adhesive production requiring precise temperature control

• Textile & Dyeing Industry

Resin stenters for fabric finishing and fixation

Dyeing machine heating and high-temperature dyeing processes

Drying rooms and curing ovens for continuous fabric processing

• Plastics & Rubber Industry

Plastic calendering, extrusion, and injection molding temperature maintenance

Rubber vulcanization heating and tire manufacturing

Thermoforming and blow molding applications

• Wood Processing & Building Materials

Plywood hot pressing and veneer drying

Particleboard and MDF (medium-density fiberboard) production lines

Timber drying kilns and wood preservation treatment

Artificial stone and cement board curing

• Food & Agricultural Processing

Cooking, baking, frying, and dehydration equipment

Vegetable oil extraction and refining

Grain drying and feed pellet production

Vegetable and fruit dehydration

• Paper & Packaging Industry

Multi-layer cardboard drying lines

Paper machine drying cylinders

Corrugated board production and carton manufacturing

Customization & After-Sales Support

Customization Options Available:

1. Boiler capacity tailored to customer thermal load requirements
2. Fuel feeding system: manual feed (fixed grate) or automatic mechanical feed
3. Ash removal mechanism: manual or automated
4. PLC control cabinet: Siemens, Delta, or customer-specified brand
5. Material specifications: carbon steel or higher-grade materials for corrosive environments
6. Emissions control configuration: cyclone, bag filter, wet scrubber, or multi-tube dust collector
7. Skid-mounted or mobile configuration for temporary or relocatable installations
8. CE, ASMEor other certification per destination country requirements