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YLW Series Horizontal Biomass/Coal-Fired Chain-Grate Thermal Oil Heater

  • Rated Heating Capacity: 1.2–14 MW (1,000,000–12,000,000 kcal/h)
  • Thermal Oil Outlet Temperature: Up to 340°C
  • Typical Operating Pressure: 1.1 MPa
  • Thermal Efficiency: ≥ 85%
  • Design Service Life: ≥ 20 Years
  • Applicable Fuel: Bituminous Coal, Anthracite, Biomass Pellets, Wood Chips

Product Overview

The YLW Series Horizontal Biomass/Coal-Fired Chain-Grate Thermal Oil Heater is designed for reliable, high-temperature industrial process heating using solid fuels. Featuring an automatic chain-grate combustion system, a horizontal three-pass flue gas structure, and a combination of square radiant coils and serpentine convective coils, it delivers efficient heat transfer and stable thermal oil circulation at temperatures up to 340°C. Its split-type furnace and grate design allows combustion chamber customization according to different coal and biomass characteristics, while intelligent Siemens or Delixi control components provide precise temperature regulation and comprehensive safety interlocks. With automatic fuel feeding, mechanical ash discharge, and a robust thermal oil heating system, the YLW Series is suitable for continuous industrial operation and demanding process heating applications.

ylw-series-horizontal-biomass-coal-fired-chain-grate-thermal-oil-heater-01-factory-workshop-boiler-unit

Product Structure Drawing

ylw-series-horizontal-biomass-coal-fired-chain-grate-thermal-oil-heater-02-boiler-structure-engineering-drawing

Key Advantages

01. High-Temperature, Low-Pressure Heating

Delivers thermal oil temperatures up to 340°C at a typical operating pressure below 1.0 MPa, supporting high-temperature processes without relying on high-pressure steam.

02. Automatic Chain-Grate Combustion

Provides continuous, uniform fuel feeding and automatic ash discharge, reducing manual labor and maintaining stable combustion.

03. Efficient Liquid-Phase Heat Transfer

Supports stable heat delivery and efficient process temperature control, helping reduce energy consumption and long-term operating costs.

04. Customized Coal and Biomass Combustion

Features a separate furnace and chain-grate configuration, allowing furnace volume and front and rear arches to be customized for different solid fuels.

05. Three-Pass Coil Heat Transfer Structure

Combines square radiant coils with serpentine convective coils to improve heat transfer, accommodate thermal expansion, and reduce localized structural stress.

06. Intelligent Precision Temperature Control

Uses Siemens or Delixi electrical components with multi-level safety interlocks for temperature, pressure, and exhaust heat monitoring. The control system is designed to maintain thermal oil outlet temperature accuracy of ±1°C under suitable operating conditions.

Typical Applications

Food & Beverage Processing

Cooking、Pasteurization、Sterilization、Cleaning、Evaporation、Drying

Textile Manufacturing

Dyeing、Bleaching、Washing、Sizing、Printing、Drying、Finishing

Chemical Processing

Reactor Heating、Distillation、 Evaporation、Drying、Stripping、Tank Heating 、Cleaning

Pulp & Paper

Pulp Cooking、Evaporation、Paper Drying、Starch Preparation、Coating、Tank Heating、Cleaning

Rubber & Plastics

Rubber Vulcanization、Compounding、Mold Heating、Process Water Heating、Equipment Cleaning、Drying

District Heating

Space Heating、Domestic Hot Water、Campus Heating、Public Building Heating、Industrial Heat Supply、Peak-Load Support

Technical Specifications

ModelNameRated power (KW)Rated working pressure (MPa)Highest working temperature (℃)FuelClass II bituminous coal consumption (Kg/h)Furnace oil volume (m³)Circulation oil volume (M³/h)Inlet and outlet pipe diameter (DN)Transportation weight (t)Largest component transportation size L × W × H (mm)
YLW SeriesYLW-1400MA14000.8< 350Class II bituminous coal, biomass pellets and other solid fuels3001.210012514412119002900
YLW-1800MA18000.8< 3503501.510015020440024003000
YLW-2400MA24000.8< 3505002.116015025568024803240
YLW-3000MA30000.8< 3506252.416015030600026503240
YLW-3500MA35000.8< 3507502.620020035640027703470
YLW-4200MA42000.8< 3509002.825020040690028203470
YLW-4700MA47000.8< 35011003.025020044768029853475
YLW-6000MA60000.8< 35012504.835025048790032003475
YLW-7000MA70000.8< 3501500746025050840033003475
YLW-10000MA100000.8< 35022009.554030070920033003550
YLW-12000MA120000.8< 350270012.86003501421260038203630

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Project Requirements

  • Steam Boilers
  • Industrial Hot Water Boilers
  • Thermal Oil Heaters
  • Industrial Hot Air Furnaces
  • Pressure Vessels & Boiler Components

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