Longyi Group Panzhihua Company won the first prize of Science and Technology of China's non-ferrous metal industry.

Recently, Longyi Group Panzhihua Company received from China Nonferrous Metals Industry Association, China Nonferrous Metals Society issued an honorary certificate, the company's "Titanium magnetite high-efficiency green integrated recycling process and equipment research" technology innovation project won the first prize.
For the mining technical problems brought about by the change of the mining stone nature of niobium titanium magnetite in Phang Nessie region, especially the increasing rate of mining depletion, the increase of mineral homogeneity phenomenon, the weak and stubborn force of mineral magnetite compared to the remaining magnetism, the main pulsestone mineral has weak magnetism. And so on caused by the difficulty of mineral processing, high grinding costs and other issues, Panzhihua company and the North Mining Technology Group, put forward the "can throw early, can collect the harvest" of the central idea, studied the niobium titanium magnetite large block dry selection machine, external magnetic flow ladder pre-selection machine The paper establishes a selection model that matches the ore characteristics of different process segments, creates a high-frequency harmonic magnetic field near discrete state sub-selection theory, actively analyzes the basic theory of flotation application suitable for shortening the transportation area, and invents the high efficiency of -450mm large pre-selected waste-throwing co-surrounding rock. Recycling technology, external magnetic multi-gradient gradient pre-selection technology, high-frequency harmonic magnetic field selection technology, arc face impels and other key technologies; The external magnetic in-stream magnetic selector, the high frequency harmonic magnetic field magnetic field magnetic selector and the special flotation equipment of titanium iron ore in the short transport area are key equipments. The above results promote the innovation of the process, forming a new process of green and efficient integrated recovery of maglev of niobium titanium magnetite

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the implementation of this comprehensive technology, the Group iron ore production increased by 10.7%, titanium essence increased by 13.8%, flotation agent consumption decreased by 8%, iron ore cost decreased by 18.2%, titanium essence cost decreased by 13.9%, mining recovery rate of 98.65% in 2019, iron ore recovery rate of 6 3.96%, titanium recovery rate of 56.88 percent, titanium resource utilization rate of 32.72 percent, respectively, higher than the demonstration base target of 3.46, 19.88, 9.72 percentage points, in the same industry bid, the comprehensive recovery rate of resources, mining, mineral processing costs and economic benefits in the lead. The project results promote the comprehensive mining technology progress of niobium titanium magnetite, realize the grinding TFe level compared to mining taste increased by 5.5%, in-live accounted for more than 40% of the reserves of Phangxi titanium magnetite very low-level off-surface ore resource utilization, effectively solve the Phangxi region niobium titanium magnetite comprehensive utilization rate is low, low product quality, high production costs of the industry problems, so that China's tantalum magnetite integrated mineral selection technology level ranks among the world's leading. According to the current promotion of the project in Phang Nessie region, about 2 million tons / more of qualified waste stone can be reduced into the grinding process and tailings depot, while the ore can be recovered from the stripping surrounding rock about 3 million tons / year, to achieve mine tailings reduction and resourceization, with significant economic and social benefits.
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