Ruilin leads the slag beneficiation technology

Recently, with the roar of the mill and the flow of flotation foam, the slag concentrator of the first-phase annual output of 300,000 tons of copper smelting project in Guangxi South China Copper has successfully put into trial operation and produced qualified copper concentrate. The successful commissioning of the project marks that China Ruilin Engineering Technology Co., Ltd. (hereinafter referred to as "China Ruilin") has once again successfully realized the comprehensive recovery of a new type of slag (side-blown melting slag) in slag beneficiation technology. China Ruilin's leading position in the field of slag beneficiation technology. The promotion of this technology is the epitome of China Ruilin's active implementation of the national circular economy strategy, adding further water and new impetus to the economic development of the smelting industry, which has far-reaching significance.

Slag beneficiation is a comprehensive resource development and utilization engineering technology for reclaiming waste slag after smelting. Smelting slag contains a lot of valuable metals and is an important secondary resource. The efficient recycling of slag can not only extract a lot of valuable elements, create good economic benefits, but also reduce pollution and protect the environment.

The completion and commissioning of Guangxi Nanguo Copper Slag Separation Project is another new sign of China Ruilin's success in the field of slag beneficiation. The Guixi smelter slag beneficiation plant designed by Ruilin of China, which processes 600 tons of converter slag per day, was completed and put into operation in 1986. This was the first factory in China that used a beneficiation process to process smelt slag. device. After more than 30 years of unremitting efforts, China Ruilin started from the digestion and absorption of imported technology. Through re-innovation and independent innovation, it has become a leader in slag beneficiation technology at home and abroad. In the early 1990s, China Ruilin independently designed the first large-scale copper smelting furnace slag processing plant in China's non-ferrous metal industry-Jiangtong Guixi slag processing plant, with a design scale of 5,000 tons of raw materials per day (the following uses t / d as a unit), It opened a new prelude to slag beneficiation in China's non-ferrous metal industry. This project has created good economic benefits for Jiangxi Copper and set off a wave of research on slag beneficiation in the non-ferrous industry. With China's advanced technology and rich experience, Ruilin of China has always stood on the forefront of this technology field. Since then, China Ruilin has almost taken over the copper slag beneficiation projects of large domestic metallurgical groups, such as Jiangxi Copper Guixi slag beneficiation plant (5000t / d), which won the "Ministry-level scientific and technological progress first prize"; Shandong Yanggu Xiangguang slag beneficiation project (4000t / d), won the "First Prize of Ministry-level Excellent Design"; Baiyin Nonferrous Group's slag beneficiation project (4400t / d), won the "Gansu Province Science and Technology Progress Second Prize, Ministerial-level Excellent Design First Prize"; Jinchuan Group The slag beneficiation project (3600t / d) won the "National Quality Engineering Award and the first prize of ministerial-level excellent design"; the Tongling Nonferrous Jinguan Copper Industry slag beneficiation project (3600t / d) adopted the full three-dimensional design and won the "ministerial excellent design "First prize", Jinchuan Fangchenggang slag beneficiation, Yunnan Tin Copper slag beneficiation, etc.

After decades of hard work, technological innovation has always been the source of driving water for the development of China's Ruilin. Since the smelting plant adopts different smelting processes, the slag produced has different properties, such as flash smelting slag, Austrian furnace slag, silver furnace slag, side blowing smelting slag, converter slag, electric furnace slag, etc. China's Ruilin slag beneficiation technology covers all types of slag, and has continued to tackle the technical problems of slag beneficiation, forming a number of world-leading proprietary technologies and invention patents, especially good at mixed slag beneficiation technology. For example, Jiangxi Copper Industry Guixi slag beneficiation project processes raw materials as a mixture of converter slag, electric slag and flash slag; Baiyin Nonferrous Group slag beneficiation project processes up to four types of slag and the output and copper grades are not consistent. It has many components and complex composition. It is the best in the world. It uses a mixed slag beneficiation process to mix the four slags. The copper recovery index has reached the international leading level.

China Ruilin actively implements the national “Belt and Road” strategy and undertakes overseas slag beneficiation projects. In the process of internationalization, slag beneficiation technology has become a bright business card of Ruilin, China. Currently, China's Ruilin slag beneficiation business involves many countries in Europe, North America, South America, and Southeast Asia. Among them, the Philippine PASAR slag beneficiation project (3000t / d) was contracted by China Ruilin, adopting a full three-dimensional design, and won the "First Prize of Ministry-level Excellent Design"; the Indian Birla Group slag concentrator renovation project started from the original electric furnace depleted slag After water quenching, the ore flotation process was transformed into a "coarse crushing + semi-self grinding + ball mill + flotation" process after slow cooling of the flash slag, which greatly reduced the copper grade of the tailings after sorting and improved the resource utilization rate. The processing material of a slag beneficiation project under construction in North America is natural-cooled copper smelting mixed slag, which has many problems such as multiple slag types, complex slag properties, difficult to grind and difficult to select. .

From scratch to perfection, China Ruilin has created and led a new situation in the development of slag beneficiation technology in the domestic non-ferrous metal industry. China Ruilin will continue to take design as the leader and technological innovation as the driving force, leading China's nonferrous metal mining "technology + equipment" to overseas, helping to improve the international level of engineering technology and equipment in China's slag beneficiation field.