scholarly journals A novel intelligent manufacturing mode with human-cyber-physical collaboration and fusion in the non-ferrous metal industry

Author(s):  
Qing Liu ◽  
Min Liu ◽  
Zichun Wang ◽  
Feng Yan ◽  
Yingyi Ma ◽  
...  
2021 ◽  
Author(s):  
Qing Liu ◽  
Min Liu ◽  
Zichun Wang ◽  
Feng Yan ◽  
Yingyi Ma ◽  
...  

Abstract The non-ferrous metal industry is one of the most important part in China’s process industry, and has an extremely important strategic position in national economy. However, in the smelting process of non-ferrous metal, there still exists many problems: 1) the production process of non-ferrous is long, the utilization rate of resource and energy is low; 2) the large amount of waste discharge in the production process has caused prominent environmental protection issue; 3) product homogeneity is serious and the added value is low. To solve these problems, we constructed a novel intelligent manufacturing mode with human-cyber-physical (HCP) collaboration and fusion from three aspects: 1) intelligent manufacturing system with HCP collaboration and fusion, 2) product service system based on ecosystem platform, and 3) sustainable business model, to realize the safe, efficient and green production for the non-ferrous metal smelting process. In the case study on the largest copper smelting enterprise in the world, the digital twin based manufacturing system collaborative platform architecture, product &service system framework, and sustainable business model canvas are built by the proposed intelligent manufacturing mode with HCP collaboration and fusion.


2021 ◽  
Vol 73 ◽  
pp. 102226
Author(s):  
Mei-Rui Zhong ◽  
Shun-Li Xiao ◽  
Han Zou ◽  
Yi-Jun Zhang ◽  
Yi Song

2011 ◽  
Vol 51 (No. 2) ◽  
pp. 66-72 ◽  
Author(s):  
Z. Váradyová ◽  
K. Mihaliková ◽  
S. Kišidayová ◽  
P. Javorský

In vitro study of the rumen fluid (RF) and hindgut content (HC) fermentation by microbiota taken from sheep grazing in an area atmospherically polluted from the non-ferrous metal industry was conducted and compared with controls from an uncontaminated area (UA). The experimental sheep were exposed to the prolonged intake of heavy metals by grazing in the contaminated area (CA) for one year. Soil and grass from that area and the rumen content of sheep were analyzed for heavy metal levels. Based on the levels of mercury (4.752 mg/kg), copper (232.9 mg/kg), cadmium (1.167 mg/kg), lead (92.509 mg/kg) and arsenic (74.59 mg/kg) the soil was categorized as profusely contaminated. Meadow hay (MH) from UA was used as a tested substrate of fermentation activity; it was incubated with buffered RF and HC inocula from CA and UA for 24 h. The gas volume in CA was significantly decreased by 50 and 36% in RF and HC, respectively. The methane production in CA was significantly decreased by 77 and 71% in RF and HC, respectively. The significantly decreased values of the fermentation parameters in CA in comparison with UA were accompanied by the reduced (P < 0.01) total concentration of rumen ciliate protozoa.  


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