The Hwanghae Iron and Steel Complex has introduced valuable scientific and technological achievements. Scientists of Kim Il Sung University have recently developed an advanced analytical apparatus and introduced it into large-sized oxygen plants. This apparatus is an infrared ray gas analyser capable of measuring the density of an infinitesimal amount of carbon dioxide with a very high accuracy, which has been urgently required for the operation of oxygen plants. The introdu

The State Academy of Sciences of the PRC directs efforts to solving urgent sci-tech problems for economic development. The Electricity Research Institute has settled sci-tech problems for putting the production of electricity on a normal basis. Researchers of the institute went to Orangchon Power Station Unit 4 and others and learned about the problems arising there to develop a new method of controlling digital speed regulators. They newly designed a device of regulators and

The Physics Institute of the State Academy of Sciences has made successes in the research work for optimizing the operation of the oxygen heat blast furnaces of the Hwanghae Iron and Steel Complex. The researchers developed and introduced a system for comprehensively grasping the state of the furnaces and setting the needed amount of fuel and charges, thus saving a large amount of anthracite every day and reducing the sulphur content greatly so as to improve the quality and p