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Coal/Biomass Fired High Temperature Hot Oil Boiler

Rated Capacity : 120~12000kw
Pressure : 0.8 Mpa
Application : Textile printing and dyeing, plastic and rubber, paper industry, wood industry, building material, etc.
Certificate : ISO 9001, SGS , BV, CE, ASME
Fuel : coal and biomass fuel (wood, straw, bagasse, cotton seed, sawdust, cocoa shell, nut shell, etc.)
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Product Description
Hot oil boiler is an safe and energy saving boiler with working characteristics of low working pressure (0.8 MPa) and high temperature (330℃). The boiler is wide adoptability of different fuels, the fuel could be coal and biomass, including wood, straw, bagasse, cotton seed, sawdust, cocoa shell, nut shell, etc. The combustion equipment is chain grate, and the boiler could be designed as vertical type and horizontal type. The heat carrier is heat conduction oil, the circulating pump force heat transfer medium circulating in liquid phrase, and transfer heat to heat user equipment, then return to the heating furnace for reheating. Because of working in liquid state, the coal fired thermal oil heater is safe and reliable. 

Characteristics of Chain Grate

1) The small scale chain grate could resist the temperature as high as 1200℃, long working life.
2) The chain grate has a low coal leakage because of the small gap.
3) Mechanized feed, high automatic degree, decrease labor cost.
4) Convenient for maintenance, it could be done without boiler shut down.
5) Based on customers’ requirement and fuel characteristics, the grate could be designed as reciprocal grate.
Owing to its characteristics of high heating temperature, low working pressure, energy saving, the coal fired hot oil heater could be widely used in a variety of industrial heating process. Such as petroleum chemical industry, synthetic fiber industry, textile printing and dyeing, plastic and rubber, paper industry, wood industry, building material, machinery industry, food industry, electrical equipment, coking industry, metal and casting industry, detergent industry, fat and paint industry, carbon industry.

1. Boiler Customization
Zhongding Boiler owns a mature R&D and design team, and cooperates with multiple scientific research institutions for a long time, i.e. Tsinghua University and Xi’an Jiaotong University. Zhongding Boiler could customize the boiler based on the requirement of customers, water quality and fuel characteristics, to meet the operating requirement and maximum the boilers’ effectiveness.

1) Grate  ----  Based on the fuel characteristics (size, humidity, and volatility, etc.), equipped with different grate, such as fixed grate, chain grate, and moving grate, etc. The chain grate could divided into small flaker grate, chain belt grate, bar grate.
2) Air Preheater  ----  For the fuel with high humility, could equipped with air preheater, uses the waste heat of flue gas to heat the air, and improve the combustion condition, decrease heat loss form incomplete combustion heat loss.
3) Water Treatment Equipment  ----  Based on the water quality, could equipped with different water treatment equipment, generally, there are soften water treatment and reverse osmosis water treatment equipment.
4) Dust Removal Device  ----  Based on the requirement of dust emission in different area, could equipped with different dust removal devices (multi-tube cyclone dust catcher, bag dust collector, double towers desulfurization)
5) Electric Control Cabinet  ----  Customers could choose PLC or touch screen control cabinet, also, the brand of electric elements could be designated.
6) Variable Frequency Motor  ----  The boiler could adopt variable frequency water supply pump, blower fan and induced draft fan, etc., save energy and decrease operation cost.
7) Shell Color  ----  Customer could designate the color of boiler shell, elegant appearance.
2. High Quality 


1) Zhongding Boiler owns a professional design engineer team, before boiler manufacturing, the boiler design drawing will be approved by boiler and pressure vessel experts of CSBTS ( State Bureau of Quality Technical Supervision ), and then it could be produced only if qualified.
2) To ensure the raw materials quality, all the steel plates are special-used for boiler with the Inspection Certificates. The raw material materials are inspected when entering factory, and only the qualified material could be put in storage and used for production.
3) There a professional welding team, including more than 30 senior welders, to ensure the welding quality, more over, the welding materials are stored under constant temperature and humidity.
4) Nondestructive testing will be done to ensure the welding quality, by using x-ray detection, ultrasonic flaw
5) Hydrostatic test will be done to ensure the leakproofness and strength of boiler pressure parts, generally, the testing pressure is 12.5 times of rated working pressure.
6) All the raw materials and boilers are supervised and inspected by the experts of Inspection Institution for Boiler and Pressure Vessel. We could offer the international quality certificates of ISO 9001 and CE, inspection report of SGS, BV, etc., Quality Certificates, Energy audit report, and Energy Efficiency Test Report, etc.
3. Advanced Technology and Structure

4. Professional Installation and After-sale Team

1) Professional engineer installation team offer the door to door installation and after sale service. The boilers will operate smoothly and safety, and you will get them without worries.
2) 24 hours hot-line to solve your problems, and offer the professional technical supports and after sale service in time to all over the world.
Model Rated power
Working pressure(MPa) Working temperature (℃) Thermal efficiency (%) Overall dimension
L×W× H(mm)
Reference weight (t)
YGL - 120MA 120 0.8 330 75 1220×1140×2550 2.2
YGL - 350MA 350 0.8 330 75 1873×1683×3558 3.4
YGL - 700MA 700 0.8 330 75 2276×2100×3840 4.8
YGL - 1200MA 1200 0.8 330 75 2900×2500×5133 8.0
YLW-1400MA 1400 0.8 330 75 4121×1900×2900 14
YLW-3000MA 3000 0.8 330 78 6000×2650×3240 30
YLW-4200MA 4200 0.8 330 78 6900×2820×3470 40
YLW-6000MA 6000 0.8 330 78 7900×3200×3475 48
YLW-10000MA 10000 0.8 330 81 9200×3300×3550 70
YLW-12000MA 12000 0.8 330 85 12600×3820×3630 142
Notes: 1. Parameter is for reference only, if any changes should follow actual drawings.
2. Here are only parts of models, please inquire for the specific information.

Transaction Process
Customer Inquiry -- Offer Professional Consulting Service -- Place Order -- Customize Boiler Based on Customers’ needs --Production-manufacturing -- Payment -- Impeccable After Sale Service (installation and debugging, periodic maintenance, etc.)

Offered Technical Documents
Installment and Operation Instruction Quality Certificate
Inspection Certificate of Boiler Quality General Drawing of Boiler
Foundation Drawing Boiler Body Drawing
Boiler Room Design Drawing Drawing of Valves, Instruments and Accessories

Company Strength
Zhongding Boiler is the industrial boiler professor of China, it is referred as technical innovated enterprise. The manufacturer base is located in Zhengzhou Airport Economy Zone, and covers an area of 130 thousands m2. The company owns about 800 employees, including 110 technical engineers, and about 700 sets advanced manufacturing equipment. Zhongding Boiler concentrates on the invention of high-tech and energy saving boilers, has owned more than 20 sorts national patent technologies. 


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