scholarly journals Simulation Study and Industrial Application of Enhanced Arsenic Removal by Regulating the Proportion of Concentrates in the SKS Copper Smelting Process

Processes ◽  
2020 ◽  
Vol 8 (4) ◽  
pp. 385
Author(s):  
Qinmeng Wang ◽  
Qiongqiong Wang ◽  
Qinghua Tian ◽  
Xueyi Guo
Keyword(s):  
Arsenic Removal ◽  
Copper Smelter ◽  
Major Elements ◽  
Copper Smelting ◽  
Smelting Process ◽  
Process Gas ◽  
Actual Production ◽  
Sulfur Potential ◽  
Sulfide Concentrates ◽  
Direct Guidance

Arsenic removal is a crucial issue in all copper smelters. Based on the Fangyuan 1# smelter, the effects of major elements (Cu, Fe and S) in sulfide concentrates on arsenic removal in the SKS copper smelting process were studied in this paper. The results show that Cu, Fe and S in concentrates have a significant influence on the oxygen/sulfur potential of smelting systems, and also affect the efficiency of arsenic removal. By regulating the proportion of the major elements in sulfide concentrates, the concentrate composition was changed from its original proportions (Cu 24.4%, Fe 26.8%, S 28.7%, and other 20%) to optimized proportions (Cu 19%, Fe 32%, S 29%, and other 20%). The distribution of arsenic among three phases in the original production process (gas 82.01%, slag 12.08%, matte 5.91%) was improved to obtain an optimal result (gas 94.37%, slag 3.45%, matte 2.18%). More arsenic was removed into the gas phase, and the mass fraction of arsenic in matte was reduced from 0.07% to 0.02%. The findings were applied to actual production processes in several other copper smelters, such as the Hengbang copper smelter, Yuguang smelter and Fangyuan 2# smelter. Therefore, the optimized result obtained in this work could provide direct guidance for actual production.

Implementation of Lance Control in Top-Blown Copper Smelting Process Based on DCS

2012 ◽  
Vol 457-458 ◽  
pp. 161-164
Author(s):  
Chen Ye
Keyword(s):  
Control System ◽  
Control Strategies ◽  
Copper Smelter ◽  
Copper Smelting ◽  
Smelting Process ◽  
The Real

Top-blown furnace is known to be effectively adopted in copper smelting. This paper elaborates lance control strategies in top-blown smelting process based on the real project named KUNPENG COPPER SMELTER in China. We implement lance control by using several schemes, such as auto lower, auto raise, normal raise and emergency raise; meanwhile, we propose a method of auto creep control to stabilize tip pressure of lance. Moreover, the configuration of the smelting control system based on Emerson DeltaV is introduced. The result reported clearly shows that the lance rises and falls automatically according to specific conditions, as well as the lance tip pressure is stable and creep movement is precise and responsible.

Experimental study of bottom blown oxygen copper smelting process for water model

2013 ◽  
Author(s):  
Dongxing Wang ◽  
Yan Liu ◽  
Zimu Zhang ◽  
Pin Shao ◽  
Ting'an Zhang
Keyword(s):  
Experimental Study ◽  
Copper Smelting ◽  
Water Model ◽  
Smelting Process

Slag Investigations from Bronze Age Copper Smelting Sites

2017 ◽  
Vol 891 ◽  
pp. 608-612 ◽  
Author(s):  
Roland Haubner ◽  
Susanne Strobl
Keyword(s):  
Phase Diagram ◽  
Chemical Composition ◽  
Phase Diagrams ◽  
Bronze Age ◽  
Equilibrium Phase ◽  
Eastern Alps ◽  
Copper Production ◽  
Copper Smelting ◽  
Smelting Process ◽  
Melting Properties

During the Bronze Age intensive mining and smelting activities for copper production took place in the Eastern Alps. To get information about the copper smelting process, the elemental compositions of slags are marked in equilibrium phase diagrams (e.g. FeO-CaO-SiO2) and so the melting properties can be estimated. Doing so you have to keep in mind that slags have complex compositions and phase diagrams are available for three compounds only. For the analytical measurements it has to be ensured that only molten parts of the slag are measured and not contamination of other ambient material. Spot and area measurements by SEM-EDX are useful to get realistic data. In this case a complete correlation between the image of the analyzed area, the microstructure and the chemical composition of the sample is necessary. For marking spots in the phase diagram the calculation method has to be described exactly. For our results we calculated the ratio FeO-SiO2-CaO(+MgO+Al2O3). From the morphology of the observed phases, their chemical composition and the data from the phase diagram a solidification sequence can be suggested. We recommend this method because measurements by e.g. XRF provide rather general composition values. If the slag samples are inhomogeneous, unrealistic melting points are read from the phase diagram. Inhomogeneities can be caused by soil contaminations, which are not part of the molten slag, or by corrosion, when some phases were attacked and changed during storage in soil.

Online monitoring and assessment of energy efficiency for copper smelting process

2019 ◽  
Vol 26 (8) ◽  
pp. 2149-2159
Author(s):  
Zhuo Chen ◽  
Zhen-yu Zhu ◽  
Xiao-na Wang ◽  
Yan-po Song
Keyword(s):  
Energy Efficiency ◽  
Online Monitoring ◽  
Copper Smelting ◽  
Smelting Process

scholarly journals Analysis of air pollution caused by particle matter emission from the copper smelter complex Bor (Serbia)

2010 ◽  
Vol 16 (3) ◽  
pp. 219-228 ◽  
Author(s):  
Visa Tasic ◽  
Novica Milosevic ◽  
Renata Kovacevic ◽  
Nevenka Petrovic
Keyword(s):  
Particulate Matter ◽  
Wind Speed ◽  
Ultrafine Particles ◽  
Fine Particles ◽  
Copper Smelter ◽  
Temporal Variations ◽  
Copper Production ◽  
Copper Smelting ◽  
Particulate Emissions ◽  
Limit Values

The main aim of this paper is to present analyses of temporal variations of particulate matter in Bor (Serbia) influenced by copper production at the Copper Smelter Complex Bor. Particulate emissions are of concern because the presence of fine particles (PM2.5 - particles with diametar less than 2.5 ?m) and ultrafine particles (PM0.1 - particles with diametar less than 0.1 ?m) assume higher risk for human health. Such particles can penetrate deeper into respiratory organs and, at the same time, a probability for such penetration and deposition in the respiratory system is greater. The analysis is based on comparison of SO2 and PM measurements at several locations in the area of Bor town in the close vicinity of Copper Smelter. PM concentrations were highly correlated with sulfur dioxide and inversely correlated with local wind speed during pollution episodes. Presented results indicate that the dominant source of coarse and fine particles in Bor town is the Copper Smelting Complex Bor. The most significant factors for particulate matter distribution are meteorological parameters of wind speed and direction. It was found that exceeding of daily limit values of concentrations of PM10 (50 ?g/m3) usually occurs due to very high concentrations in a period of several hours during the day.

Control and Optimization of Negative Pressure in Scrap Copper Smelting

2011 ◽  
Vol 103 ◽  
pp. 399-403
Author(s):  
Ying Dao Li ◽  
Wei Hong Zhong ◽  
Hong Wei Guan ◽  
Xiu Shui Ma
Keyword(s):  
Pid Control ◽  
Negative Pressure ◽  
Control Method ◽  
Control Variable ◽  
Pressure Control ◽  
Copper Smelting ◽  
Smelting Process ◽  
Adjustment Process ◽  
Optimization Control

Negative pressure is the main control variable in scrap copper smelting process, the control of negative pressure is not only closely related with producing safely, but also produces a direct impact on the quality of the anode plate, it is also a key breakthrough in energy saving. This paper first analyses the characteristics of negative pressure control in scrap copper smelting process, aims to larger overshoot and longer regulation under conventional PID control method, and then utilizes fuzzy control to correct the PID parameters online, to achieve the optimization control of negative pressure. Simulation result shows that the adjustment process of optimized control of negative pressure is steady and rapid, usually no or slightly overshoot, and the settling time is also reduced significantly.

scholarly journals Development and Application of SKSSIM Simulation Software for the Oxygen Bottom Blown Copper Smelting Process

Metals ◽  
2017 ◽  
Vol 7 (10) ◽  
pp. 431 ◽  
Author(s):  
Qinmeng Wang ◽  
Xueyi Guo ◽  
Qinghua Tian ◽  
Tao Jiang ◽  
Mao Chen ◽  
...  
Keyword(s):  
Simulation Software ◽  
Copper Smelting ◽  
Smelting Process
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