ZG blast furnace gas boilers are characterized by their wide fuel flexibility regarding heating values and composition and advanced multi-burner technology to achieve low emissions. As a result of long experience with blast furnace gas firing, in combination with modern engineering tools and design methods, customers can enjoy a power blast boiler with the highest technological standards.

Flue gas waste heat recovery system based on heat absorption: the absorption heat exchanger concept will be applied to flue gas heat recovery boiler of the gas, the process shown in Figure 1. In additional gas absorption heat pump with the boiler flue gas condensation heat exchanger, an absorption heat pump with natural gas as a drive power source, to generate cold medium, the cooling medium in the flue gas in the flue gas condensing heat exchanger, heat transfer process can be direct contact heat exchanger or an indirect heat exchanger, the exhaust gas temperature of the system dropped below the dew point, condensation of water vapor in the flue gas heat, flue gas heat recovery purposes and moisture. Backwater into the heating network is first heated by the absorption heat pump and then into a gas boiler after heating to a temperature designed to give out, completion of the heating process water heating network. Exhaust gas boiler into the bottom of the chimney, the draft fan is placed on top of flue gas condensation heat exchanger is withdrawn after mixing with the exhaust fumes into the absorption heat pump condensing heat exchanger, the exhaust system temperature is reduced to 30 ℃ vented to the atmosphere into the chimney after less. Out of the chimney flue gas between flue gas and returned to port additional partitions. Our experimental system using a direct contact heat exchanger flue gas condensation. With this technique enables efficient heating system (system for use with a low ratio of heat input into the system of a gas heat) increased by more than l0%. Currently the technology has been applied in Beijing GLD waste heat recovery boiler room engineering, Beijing bamboo plant waste heat recovery boiler project, achieved good energy saving effect. This incremental investment techniques (including absorption heat pump investment, flue gas condensation heat exchanger and related pumps, valves and other equipment) can be recovered usually within 3a.

The "national industrial energy-saving technologies and equipment Recommended List (2018)" key recommendation "premix wing-type vacuum condensing hot water boiler" There is a beautiful name - Thalia T6, through the rational use of the U-shaped smoke tubular, cross-wing type tube design structure, and heat transfer at the same time meet the thermal requirements, reduced to 33% of the entire area of ​​the boiler can be placed in a small area in the boiler room. At the same time the use of advanced industry premix combustion technology, will reduce nitrogen oxide emissions to 18 mg / cubic meter, well below the most stringent air pollutant emissions of Beijing, Tianjin, Zhengzhou and other cities 30 mg / cubic meter standard.

Gas consumption of cast iron gas boiler 8t value is how much gas cast iron boiler gas consumption value will be the principal stakeholders to run, how much things cost, it must be user must carefully to know. Gas consumption value gas boiler heating power * time = boiler / flame temperature / boiler efficiency. Gas heat according to 35.53MJ / Nm & 3, boiler efficiency was 92%, the cast iron gas boiler 8t Gas consumption value = 5.6MW * 3600s / 35.53MJ / Nm & 3/92% = 616m ?. We should see that the calculation formula, the 8T cast iron gas boiler gas consumption value is mainly influenced by the efficiency of the boiler, the heat of the fuel.