The road to economic development of foundry with medium frequency heating furnace

For more than 20 years, the development of my country's foundry industry has mainly relied on cheap labor and large or even excessive investment in domestic resources and energy. With the rapid development and expansion of my country's economy, domestic energy, resources, and ecological environment are increasingly constraining economic growth, and the development of the foundry industry is also facing a series of major challenges. It will definitely not work if we continue to follow the past path of extensive, high-growth, sacrificing resources and the environment. my country has been the world's largest casting producer for six consecutive years. However, judging from the increasing energy constraints faced by my country's foundry industry, the increased pressure on environmental safety, the intensified competition in the international foundry industry, and the strengthening of intellectual property protection, my country's foundry industry must transform from a big country into a powerful country and reduce energy consumption within 5 years. 20%, and reducing pollutant emissions by 10%. Only by innovating and improving the quality of employees, establishing a harmonious manufacturing concept, and developing a circular economy can we have hope.

Making full use of the waste heat from the furnace during the casting production process can reduce energy consumption. For example, a factory in Shandong introduced the waste heat from the cupola into the drying room to dry the painted castings, achieving the effect of energy saving. Use cupola waste heat to heat domestic water. According to the Germans: garbage is items that have been misplaced. Waste reduction, reuse, recycling and remanufacturing in foundry production should be given full attention. According to reports, the cost of dumping a ton of waste sand is higher than the cost of purchasing new sand, and the indicators of reproduced sand are no less than those of new sand. Comparing the current domestic price of new sand with the cost of recycled sand, the cost of recycling is only one-third of that of new sand. Granulating a large amount of slag can be used as raw material for cement production, which is a good way to reduce pollutant emissions.