The coal fired hot oil heater is an safe and energy saving boiler with working characteristics of low pressure (0.8 MPa) and high temperature (330℃). The combustion equipment could be chain grate or fixed grate, 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.