Switching and optimizing control for coal flotation process based …
This paper proposes a new method of switching and optimizing control for the coal flotation process. A hybrid model is built and evaluated using industrial data. First, …Web
اقرأ أكثرTwo-Step Optimal-Setting Control for Reagent Addition in Froth
Reagent addition is an important operation in the froth flotation process. In most plants, it is manually regulated according to the operator's experience, by observing the surface features of the froth. ... N. Optimization of the coal flotation procedure using the Plackett–Burman design methodology and kinetic analysis. Fuel Process ...Web
اقرأ أكثرProcesses | Free Full-Text | Parameter Optimization and …
The parameters of jet mixing devices have an important influence on the mixing process, particle movement and interface regulation. At present, jet mixing devices are widely used in the coal slime flotation field, and their variable parameters lack systematic optimization. In this paper, the performance of reagent mixing and the …Web
اقرأ أكثرOptimization of the oil agglomeration for high-ash content coal …
Conversely, overlarge reagent dosage may force the undesirable hydrophilic powders mixing into the agglomeration, which destroys the stable solid–liquid separation system. Therefore, considering both the quality of clean coal and ε, the optimal reagent concentration should be controlled as 20% to 24%. Download : Download high-res image …Web
اقرأ أكثرDistribution of reagents down a flotation bank to improve the …
DOI: 10.1016/S0301-7516(00)00022-3 Corpus ID: 96170999; Distribution of reagents down a flotation bank to improve the recovery of coarse particles @article{Bazin2001DistributionOR, title={Distribution of reagents down a flotation bank to improve the recovery of coarse particles}, author={Claude Bazin and M{'e}lanie Proulx}, …Web
اقرأ أكثرPhysical and chemical interactions in coal flotation
Abstract. Coal flotation is a complex process involving several phases (particles, oil droplets and air bubbles). These phases simultaneously interact with each other and with other species such as the molecules of a promoting reagent and dissolved ions in water. The physical and chemical interactions determine the outcome of the …Web
اقرأ أكثرOptimization of Reagents Distribution Down a Coal Flotation …
Fine coal (− 0.5 mm) is treated in a flotation circuit at Bhelatand washery of Tata Steel. The average ash content of the flotation feed, the fine clean coal, and the tailings of the flotation circuit are 18.5%, 12.5%, and 36%, respectively. The yield of clean coal from the flotation circuit is about 72%. However, the performance of the circuit in terms of clean coal yield …Web
اقرأ أكثرStochastic optimization for strategic mine planning: A decade of
A new mine planning paradigm is considered herein, integrating two elements: stochastic simulation and stochastic optimization. These elements provide an extended mathematical framework that ...Web
اقرأ أكثرOptimization of coal-fired boiler SCRs based on modified …
offs in optimization of coal-fired boiler and selective catalyst reaction (SCR) system, to balance the unit thermal efficiency, SCR reagent consumption and NO x emissions. Field tests were performed at a 160 MW coal-fired unit to investigate the relationships between process controllable variables, and optimization targets and constraints.Web
اقرأ أكثرPrinciples for the development of automatic optimization of the …
Journal Article: Principles for the development of automatic optimization of the basic processes of coal cleaningWeb
اقرأ أكثرResearch on the optimization control of Coal Flotation | IEEE
The attainment of the coal slurry ash detector provides the novel method to resolve the problems above. This paper studies how to increase the production capacity and decrease the reagent consumption through the optimization control under the premise of the …Web
اقرأ أكثرCoordinated optimization setting of reagent dosages in
Considering the influence of reagent adjustment in different flotation bank on the final production index and the difficulty of establishing an effective mathematical model, a coordinated optimization method for dosage reagent based on key characteristics variation tendency and case-based reasoning is proposed. On the basis of the expert reagent …Web
اقرأ أكثرSimulation and optimization of natural gas processing and …
Introduction. Natural gas is the cleanest primary fossil fuel. It produces less CO 2, NO x, SO x, and particulates emissions when burned to produce energy compared to other traditional fossil fuels such as, oil and coal (Washington, 1999).In 2012, it was used and consumed globally to generate electricity by 24% relative to the other energy …Web
اقرأ أكثرOptimization modeling and mechanism discussion on specific
Some researchers have developed jar tests of the sedimentation of this specific coal-washing wastewater, in which calcium, aluminum, and iron salts are normally used as coagulants (Lee et al. 2014; Yang et al. 2016).These inorganic reagents unite the slime in a similar mechanism by either neutralizing charged particles or enmeshment …Web
اقرأ أكثرA Comparative Study on Flotation of Coal Using Eco-Friendly
The dosage variation optimization studies were carried out extensively and the main outcome of the tests are highlighted here at comparable ranges of yield and ash content of the concentrates. ... the developed single reagent for coal flotation paves the way to a sustainable and environmentally friendly solution to the coal washeries in ...Web
اقرأ أكثرProcesses | Free Full-Text | Parameter Optimization and …
At present, jet mixing devices are widely used in the coal slime flotation field, and their variable parameters lack systematic optimization. In this paper, the …Web
اقرأ أكثر(PDF) Efficient coal concentration using a short-chain amine-type
The flotation results have been obtained with 1-butylamine (coal yield: ) and compared with those achieved with a quaternary amine (PDF) Efficient coal concentration using a short-chain amine-type compound as collector reagent: Flotation and optimization studies | Javier Ernesto Vilaso Cadre and Iván Reyes-Domínguez - Academia.eduWeb
اقرأ أكثرDistribution of reagents down a flotation bank to improve the …
The collector used for the tests is a mixture of 80% isopropyl xanthate and 20% amyl xanthate, while methylisobutylcarbinol (MIBC) is used as frother. After the first addition of reagents, three concentrate samples are pulled out of the cell, and another addition of reagent is made according to the selected distribution strategy.Web
اقرأ أكثرTHE EFFECT OF REAGENTS AND REAGENT MIXTURES ON FROTH FLOTATION OF COAL
DOI: 10.1016/S0301-7516(03)00034-6 Corpus ID: 97678281; THE EFFECT OF REAGENTS AND REAGENT MIXTURES ON FROTH FLOTATION OF COAL FINES @article{Erol2003THEEO, title={THE EFFECT OF REAGENTS AND REAGENT MIXTURES ON FROTH FLOTATION OF COAL FINES}, author={Murat Erol and …Web
اقرأ أكثرInterpretation of interaction effects and optimization of reagent
The effect of three most important reagents for coal flotation namely sodium meta silicate, collector (kerosene) and frother (MIBC) was studied using 2 3 full factorial design. The regression models were developed using factorial experiment data to quantify the effect of sodium meta silicate, collector and frother and to predict grade and recovery …Web
اقرأ أكثر3. Novel reagents for the modernisation of coal flotation
Several studies on coal flotation using different surfactants having different HLB values suggested the suitable properties of reagents, which are the key to enhancing both the …Web
اقرأ أكثرFrontiers | Design Optimization and Dynamic Simulation of Steam …
Design Optimization of Concentrated Solar Power and Waste to Energy Power Plants. For CSP and WTE plants, it is possible to extend the thermodynamic considerations made for coal-fired steam cycles. Their efficiency benefits from regenerators, high superheat temperatures, and high evaporation pressures.Web
اقرأ أكثرA review on flotation of coal using mixed reagent systems
The present review paper summarizes the up-to-date research advancements made in the use of mixed reagent systems to improve the separation efficiency of …Web
اقرأ أكثرSwitching and optimizing control for coal flotation …
This paper proposes a new method of switching and optimizing control for the coal flotation process. A hybrid model is built …Web
اقرأ أكثرPERFORMANCE OPTIMIZATION OF A COAL …
optimization of a coal slurry grinding process. This involved simultaneous maximization of fineness and minimization of energy and viscosity of the grinding process subject to constraint ...Web
اقرأ أكثرProcesses | Free Full-Text | Improving Low Rank Coal Flotation …
The mixed collector can improve low rank coal flotation efficiency, but its synergistic mechanism needs to be further explored. In this paper, oleic acid-dodecane (OA-D), oleic acid (OA), and dodecane (D) were employed to treat the low rank coal for revealing new synergistic mechanism of the mixed collector. First the surface free energy of the …Web
اقرأ أكثرExtraction of aluminium from coal fly ash: Identification and
1. Introduction. CFA typically contains 26–31% alumina whereas Bauxite, a naturally occurring alumina ore, contains about 30–60% alumina (Authier-Martin et al., 2001) and is the main source of aluminium metal in the world.CFA is formed when pulverized coal is combusted in power stations to heat boilers, which in turn drive generators to produce …Web
اقرأ أكثر(PDF) Optimising Coal Stockpiles in a Supply Chain Using
Abstract and Figures. This paper employs a stochastic and dynamic intermediate storage model to estimate the optimal stockpile levels at both a mine and port for a coal supply chain. The ...Web
اقرأ أكثرUtilization of coal fly ash in China: a mini-review on
China is the largest coal consumer around the world, and coal accounts for more than 60% of the country's energy mix (Peng et al. 2018; Wang et al. 2019).Coal fly ash (CFA), a solid waste produced by coal-fired thermal power plants during the combustion of pulverized coal, is currently one of the largest solid wastes in China (Yao et al. 2015).In …Web
اقرأ أكثرCoal fly ash: an emerging material for water remediation
Coal fly ash (CFA) is a byproduct of thermal power plant and collected from flue gases by separator. Composition of CFA depends on the type of coal used and it has both crystalline and amorphous character. It is considered to be an environmental pollutant and used in number of areas. CFA is a useful material and widely used in cement …Web
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