Recently, a client inquired about the operation process of a gas boiler. In response to this question, our technical staff provided an explanation.

1. Heating and Drying Stage

After coal enters the furnace and is heated, the moisture in the coal begins to vaporize and evaporate. When the gas boiler temperature reaches 100-105°C on the same day, the moisture is completely evaporated, and the coal is fully dried. The duration of the heating stage varies depending on the amount of moisture in the coal; the more moisture, the longer the drying stage.

2.逸出挥发性分，形成焦炭阶段

As the temperature continues to rise, dry coal begins to decompose, releasing combustible gases known as volatiles. After the volatiles are released from the natural gas boiler, the remaining solid material is called coke, which is almost entirely carbon, with some ash and occasionally a small amount of sulfur. This portion of carbon and sulfur is sometimes referred to as fixed carbon.

3. Volatile fraction ignition stage

On the day, when the volatile components of the gas boiler mix with the air to reach a certain concentration, the volatiles ignite and burn, releasing a large amount of heat and heating the coke, creating conditions for the combustion of the coke.

4. Ash and slag formation stage from coke combustion

As the volatile matter approaches complete combustion, coke begins to burn, which is a chemical reaction between solid fuel and oxygen in the air. The combustion of coke is slow and takes a long time to burn out, accounting for about 90% of the total combustion time. When the outer shell of the coke has been burned off and the resulting ash obstructs oxygen from diffusing into the center of the coke, combustion will cease, forming slag.

 Heze Boiler Factory Co., Ltd. was established in1984Year, located in the Jining Road Development Zone, Heze City2218# Number, Area10Over 10,000 square meters, main workshop area30000㎡. Current staff800Multiple personnel, including engineers and technicians110Additional personnel, fixed assets2.5Billions.

      The company hasBGrade boiler manufacturing qualificationA2Grade pressure vessel design and manufacturing qualifications2Grade boiler installation andGB、GCTypes of pressure pipeline installation qualifications, equipment and machinery installation qualifications, etc. The company values scientific research and innovation, and is recognized as a national high-tech enterprise, a famous trademark enterprise in Shandong Province, a provincial energy-saving and environmental protection demonstration enterprise, and a member unit of the China Chemical Equipment Association.

      The company is highly focused on the specialized equipment industry of green energy, and is a professional manufacturer of boiler and special pressure vessel equipment. Leading products include: fuel oil(Gas)Boilers, biomass boilers, waste heat boilers, coal-fired boilers, organic heat carrier boilers, and other boiler products. LNGTanks, Oxygen/Nitrogen/Argon Storage TanksCO2Tanks and vacuum-insulated cryogenic pressure vessels; LPG storage tanks, liquid ammonia tanks, denitrification and auxiliary equipment, heat exchangers, complete chemical equipment sets, stainless steel pressure vessels, refrigeration auxiliary machinery, etc.

      Our company operates with stringent management and efficiency.ISO9001Quality Management SystemISO14001Environmental Management SystemOHSAS18001Occupational Health and Safety Management System Certification. The company holds independent import and export rights, and its products are widely distributed to over twenty provinces, municipalities, and autonomous regions, as well as exported to countries and regions in Southeast Asia, Central Asia, Africa, Latin America, and more, enjoying high praise from customers. 

     Company specializes in“Ascend to become a top special equipment supplier in China, redefining Chinese manufacturing.”For the vision of development, the company adheres to“Achieving employees' dreams, creating customer value, and striving for the prosperity of our homeland.”Our corporate mission is dedicated to the development of green special equipment, providing outstanding products and services to society.