The mixture consists of approximately 25 pct high-grade lead concentrate, 50 pct return sinter, 15 pct slag, and 10 pct fluxing agents, dusts, etc. The sintered product is crushed and sized with the undersize material being recycled to the sinter machine and the oversize serving as feed for the blast furnace.
The problem of low quality sinter and productivity was encountered in a. lead-plant that used partially (30-50% of the total concentrate) a low grade lead. concentrate containing as low as 35-40% ...
The raw materials for an integrated steelworks can be classified into four categories, which are iron ores, fluxes, fuels, and reverts. The characteristics of these raw materials strongly affect the metallurgical properties of iron ore sinter and sinter plant performance. An optimal ore blend design is therefore essential to produce low cost ...
Sinter Plant Operations: Design, Physical And Chemical Principles for Beginners. April 16, 2024 by Jignesh Sabhadiya. The sintering process is the first step …
The undersized sinter return stream mixes with the other feed components, or green feed, as the two streams enter a rotary pelletizing drum. A water spray into the drum …
Figure 1 shows a simplified diagram of a sinter plant. Materials enter the sinter plant from storage bins. They are mixed in the correct proportions using weigh hoppers, one per storage bin, except for the return fines for which an impact meter is used instead. Weighing is continuous, as is the whole sintering process.
Technologies for Improvement in Sintering Process. WebAug 6, 2013 The sintering process is used to agglomerate a mix of iron ore fines, return fines, fluxes, and coke breeze, with a particle size of less than 10 mm, so that the resulting sinter, with a screened size of 5 mm to 30 mm, can withstand the pressure and the temperature conditions in …
The sinter plant that converts the iron ore fines into a desirable blast furnace feed, offers an avenue for recycling wastes. One of the several wastes that are produced at an iron and steel plant is the undersized pellet fines, which cannot be directly used in iron making. The present study evaluated the influence of these pellet fines on the sintering …
Sintering Plant at A Glance PDF Blast Furnace Sintering WebOct 22, 2015 Ideal size of ore Fines -10 mm to 100 mesh Coke breeze -3.2 mm 85% Flux - - 3.2 mm 85% (2) Fuel content - Variation in Fuel content in Charge Mix affect the peak Temperature attained during sintering, the combustion zone will not be uniform leading to poor bed …
An intelligent control system based on prediction of the burn-through point for the sintering process of an iron and steel plant. Fuzzy control can handle nonlinearities and uncertainties in a system (Yang & Cai, 2010), and has advantages over other control methods (Soyguder & Alli, 2010). A predictive model of BTP based on fuzzy expert rules ...
to bring your sinter plant in line with the latest technologies. Our lifecycle management spans the entire service life of the sinter plant, offering much more than just after-sales …
Figure 1 shows a simplified diagram of a sinter plant. Materials enter the sinter plant from storage bins. They are mixed in the correct proportions using weigh hoppers, one per storage bin, except for the return fines for which an impact meter is used instead. Weighing is continuous, as is the whole sintering process.
Pb-S-O system (Fig. 1), In conventional sintering, where the lead concentrate is 'dead-roasted', the final form of the lead is PbO, formed by the overall reaction: PbS + 3/2 O2 -'> PbO + S02 (2) • ~ SINTERING PbO • By limiting the supply of oxygen, it is possible to produce metallic lead through the partial oxidation Reaction (1). Fig.
The analysis of the sintering process was performed on a sintering plant belonging to an Italian steel company (Dwight-Lloyd sinter). For the development of such analysis, the emission levels of a period of 6 years and the corresponding inputs have been recorded to define the starting point of the problem.
DG ad ¼ c l g coshþc s c DA¼ ¼ 0 ð2:2Þ where c l s is the liquid–solid interfacial energy, c l g is the liquid–gas interfacial energy, c s g is the solid–gas interfacial energy, and h is the contact angle. The process of adhesion of the liquid to the granular solid is possible, pass from the Stage I to the Stage II in Fig. 2.2, due to the free energy of the process during
Modern sinter plants were developed in 1906 by Arthur S. Dwight and Richard L. Lloyd, and a chain grate strand type sinter machine which was able to operate continuously had been put into operation at Birdboro, Pennsylvania, USA, in 1911 (Vegman et al. 2004).The sintering process gained popularity quickly around the 1950s as …
The sintering process begins with preparation of a sinter mixture consisting of iron ore fines, fluxes, solid fuel (called bonding agents in Japan) such as coke breeze, and return fines from the sinter plant as well as recycled ferruginous materials from downstream iron and steelmaking processes.
An Automation Master Plan was conducted to achieve the control optimization of a blast sintering process based on a Dwight-Lloyd machine. In the pursue of this goal was necessary to use an engineering and scientific approach in order to identify and analyze all the factors influencing the production rate, product quality and …
10. Lead fumes from the molten lead and slag leaving the blast furnace area; 11. Fugitive leaks from the tapping of the kettles and settlers; 12. The hauling and dumping of slag, at both the handling and cooling area and the slag storage pile; 13. The combustion of natural gas, as well as the creation of lead-containing fumes at the
Updraft sintering of lead concentrates was introduced at Port Pirie in 1955 and since that time a considerable amount of investigational work has been carried out in the laboratory and on the plant with the objective of improving both the understanding of the process and its practical application.From this work it is now possible to predict trends in design and …
Many companies return sinter dust to sintering directly, resulting in circulation and accumulation of harmful elements, which will affect the collection efficiency, sinter quality, and the grade of blast furnace seriously. A new separation and recovery process of potassium from the dust was proposed, which included water leaching, solid …
Estimate the capillary forces that are produced at the exit of the homogenization drum in a sintering plant (Fig. 2.1), when the materials that are going to be sintered are mixed, if the interfacial tension of the water is 74.0 × 10 −3 N m −1 (74 mJ m −2), the size of the agglomerates is 5 mm and the mean distance between particles of ...
Proportioning Bins Sinter Machine Blast Furnace SCREEN Crusher SMD Process Flow Diagram of Sinter Plant -2 4 Figure-1 Process flow diagram of sintering plant -2 III. AUTOMATION WORK IN MODERNIZATION A. Replacement of Belt Weigh Feeders and Belt Weigh Scales: A.1 Present Status: There are 24 Bins in the Mixing Bins Building …
As one of the main solid wastes of iron and steel plants, the treatment of sintering dust is still a headache of a steel plant [6, 7]. Recycling this waste materials back into the iron ore ...
Basic sintering technology. The sintering technology is basically an agglomeration process for the iron ore fines which is dependent on heat to melt the surface of the smaller particles together to form larger agglomerates. A typical sinter plant consists of a number of sequential operating units with the sinter machine at the heart of the plant.
Some of critical Equipments/ facilities in Sinter Plant are as under: S.No. Major equipments 1. Conveyors, charging bins for Iron Ore Fines/ Coke Breeze/ Lime Dust/ Return Fines, Mixing Drums, Sinter Machine, Sinter Breaker/ crusher, Screens (Hot & Cold), ESPs (Electrostatic Precipitator), Exhausters,
The coke combustion on the sinter grate is first of all described by the following equation: $$ mat {C}+ {mat {O}}_2to {mat {CO}}_2 $$. and …
The article describes the concept of partially replacing the sinter in a blast furnace charge with extrusion briquettes to form the basis for sintering and briquetting synergy. The comparability criteria for sinter and extrusion briquette (brex) properties and production parameters were analyzed along with a substantiation of the fundamental …
Return fines are unavoidably formed during the sintering process, and are recycled back into the sintering process, making up 30 to 40% of the iron bearing materials. Wu et al. 2013, studied the ...
Process Sintering Crushing kathkirchegau . Mar 15, 2015nbspthe sintering process starts with the preparation of the raw mix materials consisting of ore fines, fluxes, inplant waste material, fuel and return fines are stored in storage bins they are mixed in the correct proportions using weigh hoppersdisc feeders, one per storage bin for the return fines …
The problem of low quality sinter and productivity was encountered in a. lead-plant that used partially (30-50% of the total concentrate) a low grade lead. concentrate …
Jan 16, 2018 • Download as PPT, PDF •. 4 likes • 974 views. S. Sajan Agrawal. Sinter Plant. Education. 1 of 54. Download now. Sintering plant at a glance - Download as a PDF or view online for free.
