Ningxia Energy Aluminum Aluminium Industry Technology Promotes Reduction of Efficiency
(Reporter Zhang Jihua correspondent Li Jiahui) Recently, China Power Investment Ningxia Qingtongxia Energy Aluminum Group Co., Ltd. launched a technical breakthrough in the aluminum production process affecting product quality, production efficiency and energy consumption, through independent design, independent transformation. , Continuously improve the efficiency of the use of equipment, reduce energy consumption, technological transformation and fruitful results.
The 350kA electrolytic series air supply network has always had the problem that water and gas cannot be discharged from the pipe network in recent years, resulting in insufficient compressed air pressure, resulting in problems such as shell crushing in the electrolytic cell, inability to feed, and difficulties in purifying the transportation and transportation of alumina during storage and transportation. In this regard, the company's technical staff after many arguments, decided to carry out technical transformation of the system, through the connection of the relevant air supply pipe and the addition of large-capacity gas tanks and other measures to increase the pipeline pressure. After the transformation, the pressure of the compressed air line was increased by 0.1 MPa compared with that before the transformation, achieving the purpose of both energy saving and pressure increase, and the annual cost savings of 3.39 million yuan.
The technological transformations like this are being carried out vigorously in the various systems of the company: after the transformation of the anode forming machine grinding tool, the volume of the boss on the top of the carbon block is reduced, and the gap between the weight and the mold liner is reduced by 4 mm on both sides. Each raw anode will save 11 kilograms of paste, and it is expected to save 5.53 million yuan in the whole year. After the transformation of casting continuous casting and rolling units, not only the product quality is improved, but also the working environment is improved, and the cost reduction effect is obvious. An annual savings of 1.008 million yuan can be saved.
It is understood that in 2014, there were a total of 265 technical renovations and old repairs and wastes projects of the Qingtongxia branch of the company, which is expected to generate an estimated profit of about 40 million yuan.
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