Ri Myong Hwa, director of the Jangjagang fuel station, is one of the winners of the top inventor prize for 2023.
The station turns out a variety of coal fuel products that are high in combustion efficiency, low in harmful gas emission and convenient to use in order to accommodate the demand of Kanggye citizens.
The business success is attributable to the devoted effort of Ri who has concentrated all her energy on fulfilling the people’s demand with fervent enthusiasm.
In the past, the station made coal briquettes with inferior coal, which failed to win favour with customers due to their poor quality.
So she buckled down to research into ways to improve the combustion efficiency of briquettes.
It was her principle that no one would do her duty for her if she gave up. In order to acquire knowledge and technologies related to combustion additives, she called on some scientists of the State Academy of Sciences, Kim Chaek University of Technology and other scientific and educational institutions and gained extensive experience while learning from them and conducting experiments by herself with the help of scientific literature.
The data she gathered in practice, combined with profound knowledge of researchers, solved bottlenecks one by one and, finally, the excellent combustion additive was brought out. Since then, she has developed an upper combustion briquette effective in removing carbon dioxide while increasing combustion efficiency, a filling material for biomass combustion chamber, a fire box with heat storage capacity and a scavenger highly effective in removing carbon dioxide, and introduced them into Jagang Province and other parts of the country, thereby making a tangible contribution to improving the people’s living standards.
The station’s two-layer quick-ignition briquettes, kindling briquettes, oval briquettes and other coal products are enjoying an ever-increasing demand and supplied even to adjoining counties.
In particular, Ri has developed a new thermal hypocaust design and construction method that ensures sufficient heating with low fuel consumption, and applied it to modern rural houses being built in different parts of the country.
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