The authorized invention patents are "nitrogen recycling device" patent No. 201310308261.5, which is Comrade Zhang Jin in May 2014 and a licensing inventions "from circulating Pulverized Coal device" 201,210,054,658.1 patents licensed after patent. The main technical problem of this invention to solve the patent status of the coal preparation system for part of nitrogen discharged directly into the atmosphere, aim to provide a nitrogen recycle recycling means to achieve energy saving.

Six utility model patents as "resilient valve plate flap valve," "A vertical roller mill roll system with hydraulic lift," "an addition to the mill with iron slag vertical mill function", "three-stage at the indoor sets vertical cylinder cooling device, "" hot fill pulverized sintering temperature flue gas heat recovery unit from circulation "," adjustable pulverized coal to wear the gun ", the top five technology also apply for a patent.

The company has long insisted focus on the development of cutting-edge technology metallurgical industry, metallurgical industry around energy saving, emission reduction and restructuring varieties overall objective, bold introduction, absorption, digestion of foreign advanced technology, to choose the field of development of the company and carry out follow-up study, technical reserves work, while existing technology to consolidate and perfect, continuous innovation, take advantage of key technologies and core equipment.

The company in 2014 applied for 24 patents, including 11 invention patents.

Correspondent: Zhu Jianjun