Product Overview
The Huanuo YGL Series Vertical Biomass/Coal-Fired Fixed-Grate Thermal Oil Heater is designed to provide reliable, high-temperature process heating for industrial applications using solid fuels. Featuring a vertical multi-coil structure and an optimized three-pass flue gas circulation system, it ensures uniform heat transfer, stable thermal output, and effective accommodation of thermal expansion. Its flexible furnace design can be customized to suit different coal and biomass fuel characteristics, helping achieve efficient combustion and reliable operation. Combined with advanced Siemens or Delixi electrical controls and comprehensive safety interlocks, the YGL Series delivers precise temperature regulation and dependable performance for continuous industrial heating processes.

Product Structure Drawing

Key Advantages
The split-type design separates the lower combustion equipment from the upper furnace body, allowing the furnace structure to be customized according to coal and biomass fuel characteristics for effective combustion.
Vertical coils and an optimized three-pass flue gas path promote uniform thermal fluid circulation and efficient heat transfer, supporting stable full-load operation.
Multi-head, small-diameter steel coils in the radiant and convective heating sections accommodate thermal expansion, helping reduce localized structural stress and extend equipment service life.
Designed for process temperatures above 300°C at an operating pressure below 1.0 MPa, providing high-temperature heat for demanding industrial applications.
Siemens or Delixi electrical components, with an optional bilingual HMI touch screen, support automated combustion control and precise thermal oil outlet temperature regulation within ±1°C.
Continuous monitoring of thermal fluid temperature, pipeline pressure, and exhaust gas temperature enables automatic protective shutdowns when abnormal operating conditions are detected, supporting safe, unattended operation.
Typical Applications
Reactor Heating、Distillation、 Evaporation、Drying、Stripping、Tank Heating 、Cleaning
Rubber Vulcanization、Compounding、Mold Heating、Process Water Heating、Equipment Cleaning、Drying
Technical Specifications
| Item | YGL-120MA (10万) | YGL-240MA (20万) | YGL-350MA (30万) | YGL-500MA (40万) | YGL-700MA (60万) | YGL-1000MA (80万) | YGL-1200MA (100万) | YGL-1400MA (120万) |
| Rated power (kw) | 120 | 240 | 350 | 500 | 700 | 1000 | 1200 | 1400 |
| Design pressure (Mpa) | 1.1 | 1.1 | 1.1 | 1.1 | 1.1 | 1.1 | 1.1 | 1.1 |
| Rated working pressure (Mpa) | 0.8 | 0.8 | 0.8 | 0.8 | 0.8 | 0.8 | 0.8 | 0.8 |
| Highest working temperature (°C) | < 350 | < 350 | < 350 | < 350 | < 350 | < 350 | < 350 | < 350 |
| Furnace oil volume (m³/h) | 0.1 | 0.15 | 0.3 | 0.38 | 0.52 | 0.7 | 0.85 | 1.02 |
| Circletion oil volume (m³/h) | 10 | 20 | 30 | 40 | 60 | 80 | 100 | 100 |
| Pipe connection diameter (DN) | 40 | 65 | 80 | 80 | 100 | 125 | 125 | 125 |
| Overall size – length (mm) | 1220 | 1705 | 1873 | 2076 | 2276 | 2900 | 2900 | 3000 |
| Overall size – width (mm) | 1140 | 1510 | 1683 | 1900 | 2100 | 2500 | 2500 | 2900 |
| Overall size – height (mm) | 2550 | 3095 | 3358 | 3660 | 3840 | 4785 | 5133 | 5430 |
| Reference weight (t) | 2.2 | 2.7 | 3.4 | 3.9 | 4.8 | 7.4 | 8.0 | 10.2 |






