BIOMASS-FIRED THERMAL OIL HEATER
YLW Biomass Thermal Oil Heater
Solid-fuel process heating engineered around actual heat duty, thermal-oil temperatures, biomass properties, circulation hydraulics, combustion control and the complete plant boundary.
- Rated Thermal Power
- 1,400–7,000 kW
- Rated Working Pressure
- 1.0 MPa
- Maximum Operating Temperature
- 310°C
- technical data Fuel Route
- Biomass Briquette
PRODUCT OVERVIEW
High-Temperature Process Heat from a Purpose-Engineered Biomass System.
The YLW series is a horizontal chain-grate organic heat-carrier heater for indirect industrial process heating. Prepared biomass is metered to the grate, combustion heat is transferred through the heater’s coil surfaces, and a circulation pump moves thermal oil to the customer’s process users and back.
This liquid-phase route can provide high process temperature at comparatively lower pressure than steam at a similar temperature. Reliable operation still depends on verified oil flow, expansion, venting, combustion stability, furnace draft, ash handling and protective interlocks.
Biomass Heat Source
The furnace, grate, feeding and air system are matched to the approved biomass properties instead of a generic fuel name.
Indirect Process Heating
Thermal oil transfers energy to reactors, dryers, presses or heat exchangers without mixing with the process material.
Closed Circulation Route
The heater, circulation pump, process users, return line, expansion and oil-storage provisions form one engineered circuit.
Complete Plant Boundary
Fuel handling, flue-gas treatment, controls, tanks, pumps, chimney and site interfaces are defined project by project.
COMBUSTION & OIL CIRCUIT
One Coordinated Route from Biomass Feeding to Useful Process Heat.
Prepared fuel enters through the matched feeding system and burns across the moving grate under controlled primary and secondary air. The furnace and convection surfaces transfer heat into the circulating thermal oil while the draft system carries flue gas through the selected particulate-control equipment.
Hot oil flows to the process user and returns at a lower temperature for reheating. Circulation must be established before firing, and heater load must follow confirmed oil flow and process demand to protect the heat-transfer surface and thermal oil.
REFERENCE SYSTEM DIAGRAM
How the YLW Heater Connects to the Complete Biomass Thermal-Oil System.
This simplified diagram identifies the main equipment and flow direction. Final fuel-handling design, pipe sizes, elevations, valves, instruments, tank volumes, emissions equipment and control points follow the approved project calculations and drawings.
DESIGN FEATURES
Designed Around Stable Combustion, Oil Circulation and Maintainable Operation.
Chain-Grate Combustion
Grate speed, fuel-bed thickness and air distribution are coordinated with the approved biomass and operating load.
Coil Heating Surface
Radiant and convection surfaces are arranged for the project duty, oil flow and permitted film temperature.
Controlled Circulation
Pump duty, circuit resistance and protective logic maintain the required flow through the heater before and during firing.
Expansion & Venting
Tank volume, elevation, deaeration, venting and oil storage are calculated from the complete system oil volume.
Draft & Emissions Route
Fans, dust collection and chimney are selected from fuel properties, flue-gas volume and the project emissions target.
Safety Interlocks
Flow, temperature, pressure, tank level, furnace draft, motors and emergency shutdowns are coordinated in the control logic.
TECHNICAL DATA
Representative YLW Models from the JINHONG YLW product range.
The YLW product range supports initial selection from 1,400 to 7,000 kW. These values are reference points for technical discussion—not substitutes for heat-load, fuel, combustion, hydraulic and thermal-oil calculations.
| Model | YLW-1400SCII | YLW-2400SCII | YLW-3500SCII | YLW-4700SCII | YLW-7000SCII |
|---|---|---|---|---|---|
| Rated Thermal Power kW | 1,400 | 2,400 | 3,500 | 4,700 | 7,000 |
| Rated Working Pressure MPa | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 |
| Maximum Operating Temperature °C | 310 | 310 | 310 | 310 | 310 |
| Reference Biomass Fuel Use kg/h | 300 | 500 | 750 | 1,100 | 1,500 |
| Inlet / Outlet Pipe DN | 125 | 150 | 200 | 200 | 250 |
| Reference Overall Size mm | 4121 × 1900 × 2900 | 5680 × 2480 × 3240 | 6400 × 2770 × 3470 | 7680 × 2985 × 3715 | 8400 × 3300 × 3475 |
| Reference Transport Weight t | 14 | 25 | 35 | 44 | 50 |
Fuel consumption: YLW product range reference only. Actual consumption varies with lower heating value, moisture, ash, particle size, operating load, thermal-oil temperatures, excess air, ambient conditions and system losses.
Fuel route: The listed models are shown for biomass briquette. Wood chips, pellets, husk, shells or other biomass require a fuel analysis and may need different storage, feeding, grate, furnace, air and dust-control arrangements.
Temperature: The current YLW model table lists a maximum operating temperature of 310°C. The permitted project setpoint must also comply with the selected thermal oil’s bulk- and film-temperature limits and the approved system design.
Dimensions and weight: Reference only. Use the approved general-arrangement drawing for transport, lifting, foundation, maintenance access and boiler-room planning.
FUEL ENGINEERING
“Biomass” Is Not One Standard Fuel.
Fuel preparation and combustion must be based on the actual material delivered to the plant. A stable YLW system starts with representative fuel data rather than a broad category name.
Send fuel and process data- 01Calorific Value
Provide the lower heating value on the actual moisture basis used for commercial fuel supply.
- 02Moisture & Ash
Both affect useful heat release, furnace temperature, grate loading, ash volume and emissions equipment.
- 03Particle Size & Bulk Density
These properties influence storage volume, bridging risk, conveyor selection and fuel-bed uniformity.
- 04Ash Behavior
Evaluate slagging, fouling and ash deformation characteristics where the fuel is variable or ash-rich.
- 05Feeding Method
Hopper, belt, screw, pusher or combined feeding is selected to match fuel geometry and flow behavior.
- 06Local Emissions Target
Particulate and other applicable limits determine the required dust-control and flue-gas treatment route.
HEATER & SYSTEM BOUNDARY
A Complete Biomass Thermal-Oil Plant Extends Beyond the Heater Body.
The heater must be coordinated with fuel preparation, feeding, combustion air, furnace draft, oil circulation, expansion, oil storage, dust control, chimney, electrical control and every process user. The approved technical proposal defines the final boundary line by line.
Process heat exchangers, plant piping, thermal oil, civil works, installation, local approvals and customer utilities are included only when explicitly listed in the agreed supply scope.
Define the system boundaryAPPLICATIONS
Biomass-Fired Indirect Heat for Continuous Industrial Processes.
Application suitability depends on heat duty, temperature profile, process heat exchanger, thermal-oil compatibility, actual fuel and local emissions requirements—not industry name alone.
Plywood & Wood Processing
Hot presses, veneer dryers and wood-product lines where prepared biomass is available at the plant.
Chemical & Reactor Heating
Jacketed reactors, distillation and process vessels requiring stable indirect temperature control.
Textile & Finishing
Dryers, stenters, calenders and other equipment designed for a circulating thermal-oil route.
Rubber & Polymer Processing
Vulcanizing, mixing and forming processes subject to the actual heat-transfer and temperature requirements.
Food & Edible-Oil Processing
Drying, frying, deodorization and jacketed equipment with an approved indirect-heating boundary.
Asphalt & Bitumen Heating
Tanks, pipelines and process equipment requiring controlled high-temperature circulation.
SELECTION GUIDANCE
Select the Heater from the Process Heat Balance and the Real Fuel.
A reliable proposal separates normal duty, startup duty and peak demand, then verifies fuel input, combustion margin, oil flow, pressure drop, system volume, heat loss and process interfaces.
Review industry solutions- 01Useful Heat Duty
Provide normal, peak and startup loads for each process user instead of selecting only from installed equipment rating.
- 02Supply & Return Temperature
The actual temperature difference determines circulation flow, heat-transfer area and pump selection.
- 03Heat-Up Time
Process mass, starting temperature and target time can create a startup load above the steady operating duty.
- 04Thermal-Oil Data
Confirm oil type, permitted bulk and film temperatures, viscosity curve, condition and system fill volume.
- 05Fuel Analysis
Send representative calorific value, moisture, ash, size, bulk density and annual availability.
- 06Site & Emissions
Provide voltage, frequency, altitude, ambient conditions, destination codes and required emissions limits.
FREQUENTLY ASKED QUESTIONS
YLW Biomass Thermal Oil Heater FAQ.
What capacity range is listed for the JINHONG YLW series?
The JINHONG YLW product range lists YLW models from 1,400 to 7,000 kW. Final selection is based on the process heat balance, fuel properties, system losses and operating margin.
What is the maximum operating temperature?
The current YLW model table lists 310°C. The approved project setpoint may be lower and must comply with the selected oil’s bulk- and film-temperature limits, circulation design and local requirements.
Can the YLW heater burn wood chips, pellets or rice husk?
Alternative biomass can be evaluated, but it is not an automatic substitution. Fuel size, moisture, ash, calorific value, bulk density and flow behavior may require different storage, feeding, grate, furnace, air and dust-control arrangements.
Does a 1.0 MPa rated working pressure mean the circuit always operates at 1.0 MPa?
No. The current model table lists 1.0 MPa as the rated working pressure. Actual circuit pressure depends on pump duty, system resistance, elevation, temperature and the approved hydraulic design.
Why can two plants need different YLW configurations at the same MW rating?
Fuel properties, startup time, process temperature, return temperature, operating hours, emissions target, site layout and customer supply boundary can all change the furnace, feeder, pumps, tanks, controls and flue-gas equipment.
What is normally included in a complete system?
The defined package may include the heater, grate, feeding system, fans, circulation pumps, expansion and storage tanks, valves, instruments, controls, dust collector and chimney. Only the approved proposal defines the final supply scope.
What information is needed for a technical proposal?
Send normal and peak heat duty, supply and return temperatures, heat-up time, operating hours, thermal-oil data, fuel analysis, emissions target, voltage, frequency, altitude, destination and preferred supply boundary.
START WITH PROCESS & FUEL DATA
Get a YLW Proposal Matched to Your Heat Duty, Oil Circuit and Biomass.
Send the normal and peak heat load, supply and return temperatures, heat-up time, process users, operating hours, thermal-oil details, fuel analysis, emissions target and destination. JINHONG will define the heater and complete system boundary for technical review.