Engineering features
- Heavy-duty heater and grate arrangements
- Fuel and ash-handling options
- Integrated circulation protection
- Draft, dust collection and control coordination
Thermal Oil Heater
Coal-fired thermal oil heaters from a China manufacturer, covering grate or pulverized-coal combustion, circulation, controls, emissions and system scope.

System overview
Coal-fired thermal oil heater systems are configured for the selected fuel, process duty and local operating conditions. The complete package can include fuel feeding, heater, circulation, dust collection, control and heat-recovery equipment.
Equipment and project gallery
JIELI THERMAL equipment and manufacturing views. Some images are digitally retouched for presentation; these are not unaltered site records. Select an image to read its description.
Real project video
This site video records a YLW-2560 coal-fired thermal oil heater project during installation. It demonstrates why a coal thermal-oil plant must be engineered as a complete system: coal preparation and feeding, furnace and combustion-air distribution, draft and dust control, ash handling, thermal-fluid circulation, controls and site interfaces.
Technical parameters
The table below is translated from the technical data supplied for this product family. Final selection is confirmed against your fuel, operating conditions and project requirements.
| Technical parameter | Unit | YLW-120MA | YLW-160MA | YLW-200MA | YLW-240MA | YLW-300MA | YLW-350MA | YLW-400MA | YLW-500MA | YLW-600MA | YLW-700MA | YLW-800MA | YLW-900MA | YLW-1000MA | YLW-1200MA | YLW-1400MA | YLW-1600MA | YLW-2000MA |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rated heating capacity | ×10⁴ kcal/h | 120 | 160 | 200 | 240 | 300 | 350 | 400 | 500 | 600 | 700 | 800 | 900 | 1000 | 1200 | 1400 | 1600 | 2000 |
| Rated thermal power | kW | 1400 | 1800 | 2400 | 2800 | 3500 | 4100 | 4600 | 6000 | 7000 | 8200 | 9300 | 10500 | 12000 | 14000 | 16500 | 19000 | 24000 |
| System thermal efficiency | % | 81.5 | 82.38 | 82.07 | 82.38 | 82.44 | 82.02 | 82.36 | 82.67 | 82.5 | 82.58 | 83.22 | 83.14 | 83.52 | 83.15 | 84.02 | 84.15 | 84.26 |
| Rated working pressure | MPa | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| Maximum working temperature | °C | 320 | 320 | 320 | 320 | 320 | 320 | 320 | 320 | 320 | 320 | 320 | 320 | 320 | 320 | 320 | 320 | 320 |
| Heater oil capacity | m³ | 1.56 | 1.8 | 2.2 | 2.94 | 3.47 | 3.82 | 5.12 | 5.88 | 7.8 | 8.4 | 9.31 | 10.38 | 11.52 | 13.2 | 18.4 | 21.1 | 26.3 |
| Circulation flow rate | m³/h | 100 | 100 | 160 | 200 | 200 | 230 | 250 | 300 | 400 | 400 | 500 | 500 | 500 | 800 | 900 | 1000 | 1350 |
| Main pipe size | mm | 150 | 150 | 150 | 200 | 200 | 250 | 250 | 250 | 250 | 250 | 300 | 300 | 350 | 400 | 400 | 600 | 600 |
| Whole-system installed power | kW | 47 | 68 | 71.5 | 97.5 | 101.3 | 111.8 | 145.7 | 177.5 | 217.5 | 275 | 276.7 | 310 | 308.2 | 407.2 | 497.9 | 580.4 | 712.4 |
| Available fuel | — | Class I, II or III bituminous coal | ||||||||||||||||
| Heater body length | mm | 5414 | 6083 | 6170 | 7182 | 7160 | 7970 | 7916 | 9020 | 9516 | 9820 | 11120 | 11540 | 12100 | 13176 | 15090 | 15090 | 15090 |
| Heater body width | mm | 2380 | 2385 | 2370 | 2880 | 2878 | 3080 | 3212 | 3360 | 3635 | 3605 | 3605 | 3860 | 3956 | 4306 | 4950 | 4950 | 4950 |
| Heater body height | mm | 4646 | 4735 | 4895 | 4891 | 5257 | 5340 | 5410 | 5343 | 5683 | 5800 | 5817 | 5840 | 5920 | 6943 | 7350 | 10350 | 13350 |
| Approximate heater body weight | t | 26 | 32 | 34 | 36 | 42 | 49 | 54 | 68 | 82 | 88 | 94 | 110 | 120 | 150 | 200 | 220 | 250 |
Values are translated from the supplied technical parameter sheets and are intended for preliminary selection. Product data may be updated as designs evolve; final performance, dimensions and configuration are subject to the confirmed technical proposal.
Selection starts with data
Tell us the operating temperature or steam pressure, load profile, fuel condition, site arrangement and the process being heated. We will use those inputs to shape the equipment and system proposal.
THERMAL OIL SYSTEM SELECTION
Coal thermal oil heater and coal-fired thermal oil heater describe a solid-fuel system for high-temperature indirect process heating. A complete proposal should coordinate coal preparation, feeding, grate and furnace design, air and draft, dust collection, ash handling, thermal-fluid circulation and controls.
Provide calorific value, moisture, ash, volatile matter, sulfur, particle size and ash-fusion behavior, including the expected variation between deliveries.
Confirm heat duty, supply and return temperatures, fluid, operating schedule, turndown and process pressure drop.
Country-specific particulate and other emissions limits affect dust-control equipment, fan duty, stack design and the final plant boundary.
BUYER FAQ
These answers provide a preliminary engineering framework. Final configuration depends on the confirmed fuel, duty, site conditions, local requirements and contracted supply boundary.
Open the manufacturer evaluation checklistProvide representative proximate and ultimate analysis where available, net calorific value, moisture, ash, volatile matter, sulfur, particle size and ash-fusion behavior, together with expected fuel variation.
Coal properties affect ignition, residence time, air distribution, slagging, ash production and heat release. Feeding, grate, furnace volume, draft and ash handling must be engineered as one combustion system.
The design should define circulation flow and pressure drop at operating temperature and use appropriate flow, pressure and temperature protections so heat input is stopped when safe circulation is not maintained.
That depends on fuel analysis, boiler configuration and local limits. Dust collection, desulfurization or other controls, draft fans and stack requirements must be selected against confirmed project rules.
Send heat duty, temperatures, fluid, load profile, coal analysis, site data, emissions limits, utilities, layout and the required boundary for fuel, ash, draft, controls and heat recovery.
STARTUP & SYSTEM SUPPORT
JIELI’s original thermal oil boil-out notes explain pressure fluctuations, pump behavior and expansion-tank level. Review the staged observation example with your commissioning team and download the startup observation log.
Start a project
Share your fuel, required capacity, operating conditions and project location. Our team will help shape the boiler and the complete system around your actual production requirements.