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Tytuł:
Evaluation of organic carbon separation from copper ore by pre-flotation
Autorzy:
Konieczny, A.
Pawlos, W.
Krzeminska, M.
Kaleta, R.
Kurzydlo, P.
Powiązania:
https://bibliotekanauki.pl/articles/109321.pdf
Data publikacji:
2013
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
flotation
carbonaceous matter
copper ore
Opis:
This paper describes possibilities of organic carbon matter separation during a pre-flotation stage in KGHM Polska Miedz, Division of Concentrators. The paper contains a survey of organic carbon removal technologies in worldwide plants as well as KGHM achievements in this field. Laboratory flota-tion testing results have also been described. Next, an industrial scale trial at Polkowice Concentrator has been conducted to confirm the previous laboratory results. The results have been discussed. They indicate a positive role of the pre-flotation stage on organic carbon removal using only frother as the flotation reagent.
Źródło:
Physicochemical Problems of Mineral Processing; 2013, 49, 1; 189-201
1643-1049
2084-4735
Pojawia się w:
Physicochemical Problems of Mineral Processing
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Synergistic effect of a mixture of dodecylamine and kerosene on separation of magnetite ore
Autorzy:
Liu, A.
Fan, M.-Q.
Li, Z.-H.
Powiązania:
https://bibliotekanauki.pl/articles/109849.pdf
Data publikacji:
2016
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
DDA-kerosene
magnetite ore
quartz
flotation
Opis:
In this study, it was discovered that a mixture of dodecylamine (DDA)-kerosene demonstrated a stronger collecting ability for pure quartz and higher selectivity for magnetite ore. The relationship between the DDA-kerosene composition and mineral flotation performance on reverse flotation of magnetite ore was investigated. The results showed that floatability of the floating material increased when the DDA consumption increased. Specifically, during flotation, the fine particles (-0.074 mm fraction) selectively floated with DDA-kerosene. The difficult to float coarser particles (+0.074 mm fraction) with high content of quartz, required higher DDA dosage. However, higher DDA input during the flotation process did not necessarily yield better outcomes. The best results were obtained for 40/60 amine-to-oil ratio, as the quartz floated markedly with smaller magnetite loss and the flotation behavior was superior to pure DDA. Magnetite concentrates with 1.83% SiO2 and 71.04% Fe were produced using 120 g/Mg of DDA-kerosene (WDDA=40%).
Źródło:
Physicochemical Problems of Mineral Processing; 2016, 52, 2; 647-661
1643-1049
2084-4735
Pojawia się w:
Physicochemical Problems of Mineral Processing
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Beneficiation of Artvin-Cerattepe copper-zinc ore by flotation
Autorzy:
Seyrankaya, Abdullah
Yontar, Uğur
Canbazoğlu, Mehmet
Özel, Gizem
Kabaloğlu, Sinan
Powiązania:
https://bibliotekanauki.pl/articles/24148596.pdf
Data publikacji:
2023
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
copper
zinc
flotation
collector
refractory ore
Opis:
The Cerattepe (Artvin) mine contains volcanogenic massive sulfide (VMS) deposits in northeastern Turkey. This is a kuroko type deposit located in Late Cretaceous volcanic, intrusive and sedimentary rocks, and has a structure with dense alteration stages. In this study, batch flotation tests were carried out to determine the flotation behavior of a new sample (mix ore), that was the combination of two different ores with different flotation behaviors. The mixed ore contains 2.18% Cu, 1.46% Zn, (Cu/Zn ratio 1.49) 38.35% Fe, and 41.6% S content. An efficient separation of copper minerals from zinc minerals using the conventional selective flotation method could not be achieved due to complex mineralogy and very low liberation degree. Therefore, sequential selective flotation resulted in poor Cu recovery. The effects of flotation parameters such as collector type, collector amount, particle size, and pH conditions, were investigated to obtain a bulk copper-zinc concentrate. The best results were obtained using thionocarbamate (Aero 3894) and dithiophosphine (Aerophine 3418A) collector reagents at d80=40 μm particle size. Under optimal conditions (grain size, d80=40 μm, pH=11, amount of collector reagent 60 g/t (Aero 3894), frother (MIBC)=50 g/t, solid ratio=32%, flotation time=8 min.), a bulk copper-zinc concentrate containing 13% Cu and 9.5% Zn was obtained with a copper yield of 84.4% and a zinc yield of 88.9%. The concentrate mass pull was 13%. After rougher and two-stage scavenger flotation, a concentrate (rougher concentrate + scavenger products) was obtained with a mass pull of 22%. Copper and zinc recoveries of this concentrate were 91.8% and 92.5%, respectively.
Źródło:
Physicochemical Problems of Mineral Processing; 2023, 59, 5; art. no. 167499
1643-1049
2084-4735
Pojawia się w:
Physicochemical Problems of Mineral Processing
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Accuracy of separation parameters resulting from errors of chemical analysis, experimental results and data approximation
Autorzy:
Foszcz, D.
Duchnowska, M.
Niedoba, T.
Tumidajski, T.
Powiązania:
https://bibliotekanauki.pl/articles/109371.pdf
Data publikacji:
2016
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
upgrading curve
approximation
copper ore
flotation
selectivity
Opis:
Accuracy of determination of different separation parameters and selectivity indicators depends on the error of chemical analysis of feed and separation products as well as experimental and approximation errors. In this paper different selectivity parameters were considered which formulae was based on the content of useful component in the feed, concentrate and tailing. It was shown that the impact of chemical analysis on the selectivity parameters was small and the error determined by means of partial derivative approach for a copper ore upgraded by flotation was negligible. Also experimental errors were found to be insignificant. The largest errors occurred for approximation of the upgrading data with inadequately selected selectivity indicators.
Źródło:
Physicochemical Problems of Mineral Processing; 2016, 52, 1; 98-111
1643-1049
2084-4735
Pojawia się w:
Physicochemical Problems of Mineral Processing
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Role of sodium hexametaphosphate in flotation of a nickel ore
Autorzy:
Feng, B.
Wang, P.
Lu, Y.
Feng, Q.
Powiązania:
https://bibliotekanauki.pl/articles/109887.pdf
Data publikacji:
2016
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
nickel ore
lizardite
flotation
concentration process
pentlandite
Opis:
In this work, a role of sodium hexametaphosphate (SHMP) in the flotation performance of a nickel ore was studied and mechanism was discussed in detail. The results showed that the presence of lizardite interferes with the flotation performance of pentlandite. The adsorption of SHMP at the lizardite/solution interface and the removal of magnesium ions from lizardite surface overcompensated the positive charge on the lizardite particle, and made its zeta potential negative. The interaction between lizardite and pentlandite changed from attractive to repulsive in the presence of SHMP. Thus, the addition of SHMP made the mixed sample of pentlandite and lizardite more dispersed, and significantly reduced the adverse effect of lizardite on the flotation of pentlandite. However, when the content of lizardite in the mixed ore was increased, the effect of SHMP weakened. Therefore, in flotation of a nickel ore containing a large amount of lizardite (46% w/w), SHMP usage is not suitable at the roughing stage due to the fact that lizardite in the pulp will consume most of the SHMP, and hence the removal of lizardite slimes from pentlandite surface become impossible. Based upon the results, SHMP usage is found to be suitable at the cleaning stage to improve the grade of concentrate.
Źródło:
Physicochemical Problems of Mineral Processing; 2016, 52, 1; 170-181
1643-1049
2084-4735
Pojawia się w:
Physicochemical Problems of Mineral Processing
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Coupling mineralogy with physicochemical parameters in view copper flotation efficiency improvement
Autorzy:
Naumov, Dejan
Stamenov, Lachezar
Gaydardzhiev, Stoyan
Bouzahzah, Hassan
Powiązania:
https://bibliotekanauki.pl/articles/109556.pdf
Data publikacji:
2019
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
copper ore
flotation
quantitative mineralogy
physicochemical factors
Opis:
The Chelopech epithermal arsenic bearing high-sulphidation, copper-gold deposit located in Bulgaria is often considered as the richest European gold deposit. Selected physicochemical parameters have been measured at key flotation streams inside the processing plant. Sampling campaign has followed with samples being submitted to chemical and mineral liberation analyses. A quantitative analysis has enabled to link copper flotation response to the type of copper bearing minerals and physiochemical parameters such as redox potential (Eh), dissolved oxygen (DO), EDTA extractable Cu and Fe. Data from the mineral liberation analysis (MLA) have highlighted an important process- relevant information explaining the variable floatability in different particle size ranges. A low chalcopyrite recovery can be linked to the non-sufficient amount of dissolved oxygen inside the copper selective flotation. Given the finely-disseminated copper bearing minerals, copper losses due to particle locking could be suggested as well.
Źródło:
Physicochemical Problems of Mineral Processing; 2019, 55, 3; 701-710
1643-1049
2084-4735
Pojawia się w:
Physicochemical Problems of Mineral Processing
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Study of new commercial collectors for the recovery of coarse quartz particles in iron ore flotation
Autorzy:
de Oliveira, Geraldo Lisboa
da Silva, Gilberto Rodrigues
Powiązania:
https://bibliotekanauki.pl/articles/24202892.pdf
Data publikacji:
2023
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
flotation
new collector
amine
iron ore
coarse quartz
Opis:
Currently, a small range of commercial collectors is available for the use in reverse iron ore flotation at Vale. This input represents a considerable unit cost, being essential for the concentration of low content itabiritic iron ores. The present work evaluated the reverse cationic flotation of an itabiritic ore with low iron content (39.6 % Fe) from the Iron Quadrangle (BR) in bench scale tests, focusing on the use of new collectors to remove coarse quartz. The sample presents 19% of its particles as oversize in the 0.150 mm sieve. The poor flotation of coarse quartz particles (>0.150 mm) causes significant problems in various iron ore flotation circuits by contaminating the concentrate. The study evaluated the performance of 10 new collectors from the etheramine family with different degrees of neutralization and at different collector dosages. The flotation process variables were set as industrially practiced at the Cauê iron ore plant (BR). In tests varying the specific collector dosage, the nonneutralized etheramines showed improved performance compared to the current 50% neutralized etheramine used in the plant, achieving industrial targets: concentrate SiO2 content rate lower than 4.5% (1.4%), tailings iron content lower than 23% (18.94%), metallurgical recovery greater than 66% (74,8%), and Gaudin Selectivity Index greater than 6.6 (10.5). The 0.150 mm oversize in the concentrate, mostly coarse quartz particles, was reduced from 5.7% down to 1.2%, indicating the potential for the industrial application of non-neutralized etheramines in the recovery of coarse quartz.
Źródło:
Physicochemical Problems of Mineral Processing; 2023, 59, 5; art. no. 174292
1643-1049
2084-4735
Pojawia się w:
Physicochemical Problems of Mineral Processing
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Flotation behavior of nickel sulfide ore in a cyclonic flotation column
Autorzy:
Deng, L.
Li, G.
Cao, Y.
Ma, Z.
Powiązania:
https://bibliotekanauki.pl/articles/109906.pdf
Data publikacji:
2017
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
cyclonic flotation column
floatability
flotation
nickel sulfide ore
Opis:
This study aimed to show the flotation behavior of a nickel sulfide ore in a cyclonic flotation column. The flotation experiments were carried out using a sample of nickel sulfide ore obtained from a mineral processing plant of China. Representative samples collected from the feed, concentrate, tailing, and circulation middling were sieved using a cyclonic particle analyzer to collect different size fractions for analysis. The function of the column cyclonic zone of was evaluated by comparing the quality of tailing and circulation middling. The flotation results showed that the concentrate with Ni grade of 1.78% and recovery of 65.56% was obtained under given test conditions. The content of main sulfide minerals and coarse particles in the circulation middling was higher than that in the tailing. The results indicated that, unlike conventional cyclone classification, separation achieved in the cyclonic zone of the column was not dependent on the particle size and density. Sulfide minerals with good floatability were easily captured by bubbles and moved toward the center of the column, even if these particles were coarser and heavier.
Źródło:
Physicochemical Problems of Mineral Processing; 2017, 53, 2; 770-780
1643-1049
2084-4735
Pojawia się w:
Physicochemical Problems of Mineral Processing
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A hybrid geometallurgical study using coupled Historical Data (HD) and Deep Learning (DL) techniques on a copper ore mine
Autorzy:
Gholami, Alireza
Asgari, Kaveh
Khoshdast, Hamid
Hassanzadeh, Ahmad
Powiązania:
https://bibliotekanauki.pl/articles/2146884.pdf
Data publikacji:
2022
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
hybrid geometallurgy
historical data
deep learning
copper ore
flotation
Opis:
This research work introduces a novel hybrid geometallurgical approach to develop a deep and comprehensive relationship between geological and mining characteristics with metallurgical parameters in a mineral processing plant. This technique involves statistically screening mineralogical and operational parameters using the Historical Data (HD) method. Further, it creates an intelligent bridge between effective parameters and metallurgical responses by the Deep Learning (DL) simulation method. In the HD method, the time and cost of common approaches in geometallurgical studies were minimized through the use of available archived data. Then, the generated DL-based predictive model was enabled to accurately forecast the process behavior in the mineral processing units. The efficiency of the proposed method for a copper ore sample was practically evaluated. For this purpose, six representative samples from different active mining zone were collected and used for flotation tests organized using a randomizing code. The experimental results were then statistically analyzed using HD method to assess the significance of mineralogical and operational parameters, including the proportions of effective minerals, particle size, collector and frother concentration, solid content and pH. Based on the HD analysis, the metallurgical responses including the copper grade and recovery, copper kinetics constant and iron grade in concentrate were modeled with an accuracy of about 90%. Next, the geometallurgical model of the process was developed using the long short-term memory neural network (LSTM) algorithm. The results showed that the studied metallurgical responses could be predicted with more than 95% accuracy. The results of this study showed that the hybrid geometallurgy approach can be used as a promising tool to achieve a reliable relationship between the mining and mineral processing sectors, and sustainable and predictable production.
Źródło:
Physicochemical Problems of Mineral Processing; 2022, 58, 3; art. no. 147841
1643-1049
2084-4735
Pojawia się w:
Physicochemical Problems of Mineral Processing
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The effect of high voltage electrical pulses on iron ore comminution to improve desulfurization flotation recovery
Autorzy:
Soltanmohammadi, Vahid
Noaparast, Mohammad
Aslani, Soheila
Powiązania:
https://bibliotekanauki.pl/articles/2146929.pdf
Data publikacji:
2022
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
high voltage electrical pulses
crushing
flotation
desulfurization
iron ore
Opis:
In this research, the effect of employing high voltage electrical pulse (HVEP) on crushing to improve the recovery of iron ore desulfurization was investigated compared to mechanical crushing. To determine the effect of mechanical and electrical crushing, jaw crusher, cone crusher, and high voltage electrical pulse crusher (50Kv) were applied. The results indicated that coarser particles with fewer slimes are produced in the initial crushing stage using electric pulses. Selective separation mechanism from the boundary of the particles based on different dielectric constants, was the main difference between the HVEP method and mechanical crushing. In the flotation process of sulfide minerals crushed by an electric pulse crusher, recovery of the sample was 10.6% higher, and the grade of sulfur in flotation residue of iron ore concentrate was approximately 58% lower than the sample which was undergone through the initial mechanical crushing stage. The obtained results evidenced 37.5% increase in flotation kinetics constant while electric pulse crushing is preferred to mechanical crushing. For mineralogical studies, microparticles (-38 microns) were studied in the pulp phase of the sample, and the results proved that in the electric pulse crushing of the microparticles, they are dispersed, and there is a distance between them, while in the mechanical approach they are formed in the shape of agglomerated particles. This phenomenon leads to better preparation and further possible contact of pyrite particles with air bubbles, which increases flotation kinetics and the recovery of sulfur merely when electric pulse crushing was employed.
Źródło:
Physicochemical Problems of Mineral Processing; 2022, 58, 4; art. no. 150264
1643-1049
2084-4735
Pojawia się w:
Physicochemical Problems of Mineral Processing
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Ocena wzbogacalności flotacyjnej rudy złota
Assessment of the Gold Ore Floatability
Autorzy:
Krawczykowska, A.
Powiązania:
https://bibliotekanauki.pl/articles/318895.pdf
Data publikacji:
2017
Wydawca:
Polskie Towarzystwo Przeróbki Kopalin
Tematy:
ruda złota
flotacja
wzbogacanie grawitacyjne
gold ore
flotation
gravity separation
Opis:
W artykule przedstawiono wyniki wzbogacania rudy złota. Do badań wykorzystano dwie próbki rudy, znacznie różniące się zawartością tego pierwiastka. Zostały one poddane operacjom przygotowawczym, polegającym głównie na głębokim rozdrobnieniu i klasyfikacji. Porównano wyniki wzbogacania flotacyjnego próbek w dwóch różnych układach wzbogacania: bezpośrednio po rozdrobnieniu oraz po wstępnym wzbogaceniu na stole koncentracyjnym. Flotacja okazała się efektywną metodą wzbogacania badanej rudy, uzyskane koncentraty cechują się wysokimi zawartościami złota, natomiast w odpadach pozostały śladowe jego ilości. Ponadto analiza wyników wykazała, że wprowadzenie wzbogacania grawitacyjnego przed procesem flotacji wpłynęło pozytywnie na jakość flotowanych koncentratów.
The article presents the results of gold ore beneficiation process. Two samples of ore, significantly differed in terms of gold content, were utilized for investigations. Samples were subjected the preparatory operations, consisting of fine comminution and classification. There were compared the results of flotational beneficiation obtained in two different processing circuits: directly after grinding and after pre-concentration operation with using the shaking table. The flotation operation has proven to be an effective method of concentration for this type of ore, the obtained concentrates were of a high gold grade, while the gold contents in tails were very low. In addition, the analysis of the results showed that application of gravity concentration prior to flotation process positively influenced the quality of flotation concentrates.
Źródło:
Inżynieria Mineralna; 2017, R. 18, nr 1, 1; 221-226
1640-4920
Pojawia się w:
Inżynieria Mineralna
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Increase in the Free Finely-Dispersed Gold Recovery in the Flotation Cycle
Autorzy:
Toktar, Gulmira
Bakrayeva, Akbota
Abdyldayev, Nurgali
Banks, Graig E.
Kubaizhanov, Alibek
Powiązania:
https://bibliotekanauki.pl/articles/2202319.pdf
Data publikacji:
2023
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
hydrometallurgy
ore
recovery
free finely dispersed gold
flotation
sulfidiser
pulp dispersion
Opis:
This article presents the results of a comparative study for the increase in the free finely dispersed gold recovery from the gold-bearing ore produced in a deposit in Kazakhstan. The following minerals were identified in the sample under X-ray phase analysis: chalcopyrite and pyrite, as well as in a finely disseminated state in silicate minerals. Gold in the ore is present mainly (40.09%) in the free form under the results of phase analysis. Flotation tests of ore beneficiation were performed in FML-1 and FML-3 flotation machines with chamber volumes of 1.0 and 3.0 liters. A flotation combined concentrate with a gold content of 15.3 g/t was obtained (concentrate yield 9.45%), with gold recovery into concentrate 82.79% in the optimal mode: the grind of 90% in the class -0.071 mm; consumption of reagents: C7 foaming agent – 30 and 60 g/t, sodium butyl xanthate – 60 and 120 g/t; the time of the main flotation – 10 minutes, the control flotation – 7 minutes, at pH = 9. Flotation tailings contained 0.33 g/t of gold. The recovery showed a fairly high 84.42% (yield of the total concentrate 20.93%) with the gold content of 7.1 g/t with the use of a sulfidizing agent (Na2S) and additional dispersion of the pulp at pH = 9.0. A gold-bearing concentrate was obtained containing 4.0 g/t Au at a fineness of -0.05 mm and 6.8 g/t Au at a fineness of +0.05 mm. The beneficiation of the pulp with a fineness of +0.05 mm gave the recovery into the final concentrate equal to 89.94%.
Źródło:
Journal of Ecological Engineering; 2023, 24, 1; 115--119
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Influence of a High-Pressure Comminution Technology on Concentrate Yields in Copper Ore Flotation Processes
Wpływ technologii wysokociśnieniowego rozdrabniania na wychody koncentratów w procesach flotacji rud miedzi
Autorzy:
Saramak, D.
Młynarczykowska, A.
Krawczykowska, A.
Powiązania:
https://bibliotekanauki.pl/articles/356153.pdf
Data publikacji:
2014
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
high-pressure grinding rolls
flotation
copper ore
rozdrabnianie wysokociśnieniowe
flotacja
rudy miedzi
Opis:
The article concerns the issues of flotation process effectiveness in relationship to the operating conditions of a high-pressure comminution process course. Experimental programme covering a flotation laboratory batch tests was a verification technique of a high-pressure crushing operations course. The most favorable values of flotation concentrate weight recoveries were obtained for the pressing force 6 kN and 4% of the feed moisture. It was also determined the model of the concentrate weight recovery as a function of pressing force in the press and feed moisture content. This model was the basis for the optimization of effects of copper ore flotation processes preceded in high-pressure crushing operation in roller presses.
W przedstawionym artykule przebadano efektywność procesu flotacji w zależności od warunków pracy technologii wysokociśnieniowego rozdrabniania w prasach walcowych. Zrealizowane testy flotacyjne stanowiły technikę weryfikacji przebiegu procesu rozdrabniania nadawy. Najwyższe wartości wychodów koncentratów flotacyjnych uzyskano przy sile nacisku w prasie wynoszącej 6 kN oraz wilgotności nadawy 4%. Wyznaczono model wychodu koncentratu flotacyjnego jako funkcję siły nacisku w prasie oraz wilgotności nadawy. Model ten był podstawą optymalizacji efektów procesu flotacyjnego poprzedzonego rozdrabnianiem rudy w wysokociśnieniowych prasach walcowych.
Źródło:
Archives of Metallurgy and Materials; 2014, 59, 3; 951-955
1733-3490
Pojawia się w:
Archives of Metallurgy and Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Process Optimization of Grinding and Flotation of Copper-Molybdenum Ores with the Use of Model-Based Criteria
Optymalizacja procesu mielenia i flotacji rud miedziowo-molibdenowych z wykorzystaniem kryteriów modelowych
Autorzy:
Jargalsaikhan, Erdenezul
Ishgen, Khurelchuluun
Powiązania:
https://bibliotekanauki.pl/articles/317840.pdf
Data publikacji:
2019
Wydawca:
Polskie Towarzystwo Przeróbki Kopalin
Tematy:
rudy miedziowo-molibdenowe
mielenie
flotacja
modelowanie
jakość rudy
kryteria optymalizacji
copper-molybdenum ores
grinding
flotation
modeling
ore grade
optimization criteria
Opis:
Many plants have issues of decrease in metal recovery and quality of concentrates. Consequently, we researched influence in enrichment processes. The purpose paper is improving the technical and efficiency complex of enrichment copper-molybdenum ore. This paper developed control algorithm of grinding and flotation processes. It was assumed optimization method of economic-based technological processes. The control algorithm consists of ore model coming for processing in the formation, as a mixture to certain types of ores. The choice of enrichment modes based on the obtained information about the grade of processed ores. An economic criterion is used as an efficiency criterion, the sum cost of lost metals and the costs of improving the quality of the concentrate. Account the ore grade and the response to the metal content allows to better taking into account the objective characteristics of processed ore. The result of the developed control algorithm allows increasing the technical and economic efficiency of the whole complex of copper-molybdenum ore enrichment.
Wiele zakładów wzbogacania rud napotyka na problemy ze spadkiem uzysku metalu i jakością koncentratów. W związku z tym zbadano wpływ różnych czynników na proces wzbogacania. Celem pracy jest optymalizacja ilościowa i jakościowa kompleksu wzbogacania rudy miedziowo-molibdenowej. W artykule przedstawiono algorytm sterowania procesami mielenia i flotacji. Przyjęto metodę optymalizacji ekonomicznej procesów technologicznych. Algorytm sterowania składa się z modelu nadawy, który przyjęto jako mieszaninę minerałów. Wybór trybów wzbogacania zachodzi na podstawie informacji o jakości przetwarzanych rud. Kryterium ekonomiczne jest stosowane jako kryterium wydajności, łączne straty metali i koszty poprawy jakości koncentratu. Uwzględniono skład rudy, reakcja na zawartość metalu pozwala lepiej uwzględnić charakterystykę przerabianej rudy. Opracowany algorytmu sterowania pozwala na zwiększenie efektywności technicznej i ekonomicznej całego kompleksu wzbogacania rudy miedziowo-molibdenowej.
Źródło:
Inżynieria Mineralna; 2019, 21, 1/2; 129-132
1640-4920
Pojawia się w:
Inżynieria Mineralna
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Zakład przeróbki mechanicznej i flotacji w pierwszych latach eksploatacji kopalni rudy miedzi w Wilkowie
Mechanical processing plant and flotation in the first years of explotation of the mining copper ore in Wilków
Autorzy:
Rybicka, Karolina
Powiązania:
https://bibliotekanauki.pl/articles/164147.pdf
Data publikacji:
2019
Wydawca:
Stowarzyszenie Inżynierów i Techników Górnictwa
Tematy:
zakład przeróbki mechanicznej
flotacja
Dolny Śląsk
Wilków
górnictwo
kopalnia rudy miedzi
mechanical processing plant
flotation
Lower Silesia
mining
mining copper ore
Opis:
Artykuł przedstawia proces budowy zakładów przeróbki mechanicznej i flotacji kopalni rudy miedzi w Wilkowie koło Złotoryi w latach 30. i 40. XX wieku. Wspomniany kompleks górniczy został wzniesiony na polecenie koncernu – Towarzystwo Górnicze Spadkobierców Georga Gieschego (Bergwerksgesellschaft Georg von Giesches Erben) z siedzibą we Wrocławiu. W artykule przytoczono sposób projektowania zakładu przeróbki mechanicznej i flotacji, rodzaje używanych maszyn oraz wszystkie etapy procesu flotacji. Ponadto uwzględniono powody budowy stawu osadowego i sposoby radzenia sobie ze szlamami poflotacyjnymi. Wyjaśniono również ile prawdopodobnie mogła kosztować realizacja całego przedsięwzięcia oraz omówiono przyczyny zlokalizowania kopalni w tym miejscu.
The article presents the proces of creating a mechanical processing plant and flotation of the mining copper ore in Wilków near Złotoryja in the 30s and 40s of the twentieth century. The mining complex was built to the command of Bergwerksgesellschaft Georg von Giesches Erben based in Wrocław. The paper presents the way of designing a mechanical processing plant and flotation, the types of used machines and the all stages of the flotation process. In addition depicts the reasons for construction of an sedimentary pond and the ways of dealing with post-flotation slimes. Also explained probably total costs of this project and presents the reasons for locating the mine in this place.
Źródło:
Przegląd Górniczy; 2019, 75, 8; 53-56
0033-216X
Pojawia się w:
Przegląd Górniczy
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 16

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