Enhanced process route to produce magnetite pellet feed from copper tailing

2021 ◽  
Vol 173 ◽  
pp. 107195
Author(s):  
Ruberlan Gomes Silva ◽  
José Maria Silva ◽  
Thiago Cesar Souza ◽  
Matheus Bianchetti ◽  
Lorena Guimarães ◽  
...  
Keyword(s):  
Process Route ◽  
Pellet Feed

Effect of three different binders and pellet feed on granulation behaviour of sintering mixtures

2019 ◽  
Vol 47 (9) ◽  
pp. 991-997
Author(s):  
Fabiano Maia Linhares ◽  
Caio Cardoso Ferreira Victor ◽  
Leandro Rocha Lemos ◽  
Maurício Covcevich Bagatini
Keyword(s):  
Pellet Feed

scholarly journals Research on Blank Optimization Design Based on Low-Carbon and Low-Cost Blank Process Route Optimization Model

2021 ◽  
Vol 13 (4) ◽  
pp. 1929
Author(s):  
Yongmao Xiao ◽  
Wei Yan ◽  
Ruping Wang ◽  
Zhigang Jiang ◽  
Ying Liu
Keyword(s):  
Optimization Model ◽  
Optimization Design ◽  
Design Method ◽  
Low Cost ◽  
Route Optimization ◽  
Low Carbon ◽  
Multi Objective Optimization ◽  
Multi Objective ◽  
Blank Design ◽  
Process Route

The optimization of blank design is the key to the implementation of a green innovation strategy. The process of blank design determines more than 80% of resource consumption and environmental emissions during the blank processing. Unfortunately, the traditional blank design method based on function and quality is not suitable for today’s sustainable development concept. In order to solve this problem, a research method of blank design optimization based on a low-carbon and low-cost process route optimization is proposed. Aiming at the processing characteristics of complex box type blank parts, the concept of the workstep element is proposed to represent the characteristics of machining parts, a low-carbon and low-cost multi-objective optimization model is established, and relevant constraints are set up. In addition, an intelligent generation algorithm of a working step chain is proposed, and combined with a particle swarm optimization algorithm to solve the optimization model. Finally, the feasibility and practicability of the method are verified by taking the processing of the blank of an emulsion box as an example. The data comparison shows that the comprehensive performance of the low-carbon and low-cost multi-objective optimization is the best, which meets the requirements of low-carbon processing, low-cost, and sustainable production.

Boring-Rolling Process Research and Tooling Design of Hydraulic Cylinder

2013 ◽  
Vol 842 ◽  
pp. 634-638
Author(s):  
Yan Jing ◽  
Feng Zhao
Keyword(s):  
Process Parameters ◽  
High Efficiency ◽  
Hydraulic Cylinder ◽  
Rolling Process ◽  
Process Research ◽  
Cylinder Block ◽  
Process Route ◽  
Emerging Issues ◽  
Tooling Design

By comparison, this paper determines inner bore processing technic program of the engineering machinery hydraulic cylinder block and makes some analysis of the rolling processing technic and relevant emerging issues to propose reasonable and feasible process route and process parameters and ensure the quality of the cylinder processing. It also shows the design of boring-rolling compound tools with high efficiency and high precision for given cylinders.

scholarly journals Numerical simulation of dual-phase steel based on real and virtual three-dimensional microstructures

2021 ◽  
Author(s):  
Frederik Scherff ◽  
Jessica Gola ◽  
Sebastian Scholl ◽  
Kinshuk Srivastava ◽  
Thorsten Staudt ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Simulation Model ◽  
Dual Phase Steel ◽  
Three Dimensional ◽  
Simultaneous Increase ◽  
Dual Phase ◽  
Structure Property ◽  
Heavy Plate ◽  
Property Correlation ◽  
Process Route

AbstractDual-phase steel shows a strong connection between its microstructure and its mechanical properties. This structure–property correlation is caused by the composition of the microstructure of a soft ferritic matrix with embedded hard martensite areas, leading to a simultaneous increase in strength and ductility. As a result, dual-phase steels are widely used especially for strength-relevant and energy-absorbing sheet metal structures. However, their use as heavy plate steel is also desirable. Therefore, a better understanding of the structure–property correlation is of great interest. Microstructure-based simulation is essential for a realistic simulation of the mechanical properties of dual-phase steel. This paper describes the entire process route of such a simulation, from the extraction of the microstructure by 3D tomography and the determination of the properties of the individual phases by nanoindentation, to the implementation of a simulation model and its validation by experiments. In addition to simulations based on real microstructures, simulations based on virtual microstructures are also of great importance. Thus, a model for the generation of virtual microstructures is presented, allowing for the same statistical properties as real microstructures. With the help of these structures and the aforementioned simulation model, it is then possible to predict the mechanical properties of a dual-phase steel, whose three-dimensional (3D) microstructure is not yet known with high accuracy. This will enable future investigations of new dual-phase steel microstructures within a virtual laboratory even before their production.

An Investigation on the Mechanical Alloying of TiFe Compound by High-Energy Ball Milling

2010 ◽  
Vol 660-661 ◽  
pp. 329-334 ◽  
Author(s):  
Railson Bolsoni Falcão ◽  
Edgar Djalma Campos Carneiro Dammann ◽  
Cláudio José da Rocha ◽  
Ricardo Mendes Leal Neto
Keyword(s):  
Ball Milling ◽  
High Energy ◽  
High Energy Ball Milling ◽  
Low Density Polyethylene ◽  
Low Density ◽  
Powder Mixtures ◽  
Milling Parameters ◽  
Process Route ◽  
Partial Formation ◽  
Energy Ball

This work reports the efforts to obtain TiFe intermetallic compound by high-energy ball milling of Ti and Fe powder mixtures. This process route has been used to provide a better hydrogen intake in this compound. Milling was carried out in a SPEX mill at different times. Strong adherence of material at the vial walls was seen to be the main problem at milling times higher than 1 hour. Attempts to solve this problem were accomplished by adding different process control agents, like ethanol, stearic acid, low density polyethylene, benzene and cyclohexane at variable quantities and keeping constant other milling parameters like ball to powder ration and balls size. Better results were attained with benzene and cyclohexane, but with partial formation of TiFe compound even after a heat treatment (annealing) of the milled samples.

scholarly journals Status Estimation and In-Process Connection of Kanbans Using BLE Beacons and LPWA Network to Implement Intra-Traceability for the Kanban System

Sensors ◽  
2021 ◽  
Vol 21 (15) ◽  
pp. 5038
Author(s):  
Kosuke Shima ◽  
Masahiro Yamaguchi ◽  
Takumi Yoshida ◽  
Takanobu Otsuka
Keyword(s):  
Inventory Management ◽  
Low Cost ◽  
Computational Cost ◽  
Low Energy ◽  
Manufacturing Strategy ◽  
Implementation Cost ◽  
Measurement Systems ◽  
Process Route ◽  
Kanban System ◽  
Low Computational Cost

IoT-based measurement systems for manufacturing have been widely implemented. As components that can be implemented at low cost, BLE beacons have been used in several systems developed in previous research. In this work, we focus on the Kanban system, which is a measure used in manufacturing strategy. The Kanban system emphasizes inventory management and is used to produce only required amounts. In the Kanban system, the Kanban cards are rotated through the factory along with the products, and when the products change to a different process route, the Kanban card is removed from the products and the products are assigned to another Kanban. For this reason, a single Kanban cannot trace products from plan to completion. In this work, we propose a system that uses a Bluetooth low energy (BLE) beacon to connect Kanbans in different routes but assigned to the same products. The proposed method estimates the beacon status of whether the Kanban is inside or outside a postbox, which can then be computed by a micro controller at low computational cost. In addition, the system connects the Kanbans using the beacons as paired connection targets. In an experiment, we confirmed that the system connected 70% of the beacons accurately. We also confirmed that the system could connect the Kanbans at a small implementation cost.

Grass carp (Ctenopharyngodon idella) in ponds and cages in China.

2020 ◽  
Author(s):  
Yang Yi ◽  
Zong-wen Wu
Keyword(s):  
Grass Carp ◽  
Ctenopharyngodon Idella ◽  
Mixed Feed ◽  
Female Ratio ◽  
Commercial Feed ◽  
Grass Carp Ctenopharyngodon Idella ◽  
Supplementary Feed ◽  
Pellet Feed ◽  
Stocking Rates ◽  
Male To Female

Abstract In China, broodstock conditioning of grass carp (Ctenopharyngodon idella) is conducted in earthen ponds at a density of 2,250 - 3,000 kg ha-1 and at a male to female ratio of 1:1 or 1:1.25. Vegetation such as duckweed and rye grass and small amounts of farm-made or commercial feed are given. Nursing from fry to fingerlings (early nursing) is done in nursery ponds at a density of 1,500,000 - 2,250,000 fish ha-1 (150-225 m-2). After nursing for 20-30 days, the fish reach 3-4 cm in length and are released into fingerling nursery ponds for advanced nursing. Fingerlings are stocked in fingerling nursery ponds at a density of 3,250-4,000 fingerlings ha-1 (0.325-0.40 m-2). The main feed is pellet feed and grass. After 6 months of culture, the fish can reach 800 g. Then they are released into grow-out ponds or cages. Stocking rates for ponds are 1,650-2,000 fish ha-1 (0.165-0.20 m-2) and 50-80 fish m-2 for cages. Mixed feed is used as the main feed and grass is given as supplementary feed. The fish can reach 1.5-2.0 kg in 1 year and 3.5-5.0 kg in 2 years.

Feed Mill Automation (to Improve Efficiency and Quality)

1997 ◽  
Author(s):  
Glenn Sykora
Keyword(s):  
Waste Heat ◽  
South Florida ◽  
Improve Efficiency ◽  
Computer Monitoring ◽  
Florida Citrus ◽  
Pellet Feed ◽  
Feed Mill ◽  
Lime Addition

A typical South Florida citrus feed mill was studied by controls engineers to determine the benefits of modern controls. The peel bin, lime addition, dryer, and waste heat evaporator all showed considerable savings potential (2.5 year simple payback). With modern controls, the pellet feed output will be more consistent in quality while consuming less energy to produce. With total computer monitoring, safety for the operators will also be improved. Paper published with permission.

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