Back to list Published: 2025-07-12

In the field of industrial drying, pulverized coal hot air furnaces are becoming a new choice for many companies to replace traditional coal-fired boilers with their technical advantages of high thermal efficiency and low emissions. Especially in industries with strong drying demand such as mining, chemical industry, and agricultural product processing, the application of pulverized coal furnaces is triggering an energy efficiency revolution.

The thermal efficiency exceeds 90%. Compared with traditional layer-fired coal-fired boilers, modern pulverized coal hot air furnaces use advanced atomization combustion technology, which can make the pulverized coal combustion efficiency reach more than 98%, and the system thermal efficiency exceeds the 90% mark.

"The instantaneous ignition characteristics of the pulverized coal furnace enable it to quickly reach the working temperature. With the intelligent temperature control system, the temperature fluctuation of the dryer outlet can be controlled within ±3℃." The technical director of a well-known domestic thermal equipment manufacturer introduced.

This system enables the dryer to automatically match the optimal drying curve according to the characteristics of different materials. In the drying of chemical raw materials, kaolin, feed and other materials, the product qualification rate is generally increased by 5-8 percentage points.

However, industry experts also pointed out that the initial investment in a pulverized coal hot blast furnace is relatively high, and there are strict requirements on the quality of the pulverized coal. It is recommended that small and medium-sized enterprises consider gradually introducing a contract energy management model.

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  • Diwak*** 2025-01-05

    Hello, our factory needs to purchase a high-efficiency chain furnace for drying grain. What models does your company recommend? Can you provide specific technical parameters and quotations?

  • Mehdil*** 2025-01-22

    Regarding your company's fuel hot air furnace, I would like to know how much combustion efficiency can be achieved? What is the approximate diesel consumption per hour? Is there any energy-saving and environmental protection certification?

  • Sipho*** 2025-02-15

    Our factory is in an area with strict environmental protection requirements. Does your company's heat source furnace meet the latest environmental emission standards? What are the emission reduction measures?

  • Tinas*** 2025-02-23

    I would like to know the energy consumption comparison between chain furnace and hot air furnace in the field of industrial drying. Can the fuel hot air furnace meet 24-hour continuous heating? Can you provide a quotation range for different models?​

  • Harma*** 2025-03-01

    We are a food processing factory, and we have high requirements for the cleanliness of the heat source. Do the emissions of the oil-fired hot air furnace meet environmental protection standards? Is there any supporting waste gas treatment plan? ​

  • Navee*** 2025-03-16

    How long is the maintenance cycle of the chain furnace? If there is a fault, how soon can the manufacturer arrange for technicians to come to the door for repair? Are the accessories supplied in time? ​

  • ThiTh*** 2025-03-29

    What is the temperature control accuracy of the hot air furnace? Can remote intelligent control be achieved? Our company plans to transform the production line and hopes to match the automation system. ​

  • Ashish*** 2025-04-06

    What kind of fuel does the oil-fired hot air furnace use? How much higher is the operating cost than the natural gas hot air furnace? Is there any energy-saving optimization plan? ​

  • Khang*** 2025-04-27

    We need to heat a 5,000 square meter factory building. What power of heat source furnace should we choose? Which is more suitable, the chain furnace or the hot air furnace? Can you provide a selection plan? ​

  • Roops*** 2025-05-04

    We need a hot air furnace with special specifications, the working temperature is required to reach 350℃, and the hot air volume is 8000m³/h. Can your company customize it? How long does the production cycle take?

  • Edwin*** 2025-05-11

    Does the installation of the heat source furnace require professional qualifications? Does your company provide installation and commissioning services? How long is the installation cycle? ​

  • Simra*** 2025-05-23

    How stable is the hot air furnace in extreme weather? If there is an emergency such as a power outage, how long does it take to restart the equipment? ​

  • Sagan*** 2025-06-08

    Currently, we are considering two types of equipment, chain furnace and hot air furnace, which are mainly used for wood drying. Can you make a comparative analysis from the aspects of energy consumption, efficiency, maintenance cost, etc.?

  • Baran*** 2025-06-16

    Our factory currently has a coal-fired hot air furnace and wants to purchase an oil-fired or natural gas hot air furnace. How much can the thermal efficiency be improved by using the oil-fired or natural gas hot air furnace?