May 01, 2021 Thus, some researchers have advocated for the direct utilization of low-grade chromite ore via the sintering process, which has been proven to be a feasible method [, , , ]. However, some problems remain unresolved, such as poor granulation properties, high solid fuel consumption, low sinter strength and productivity owing to its inferior ...
Currently, chrome ore is ground to below 75μm, pelletized, heat hardened through carbothermic reaction at 1300 C to 1400 C, and then charged into a submerged electric arc furnace (EAF), along ...
must undergo agglomerating treatment, such as sintering or pelletizing. Due to the advantages of DC furnace process, chrome concentrates are fed in DC furnace directly without any agglomerating treatment. Considering the feature of chrome ore usage, the effect of concentrate oreon the s production of ferrochrome will be conducted separately. From
Nov 25, 2018 Sintering of iron ore is a generic term which is used to describe the process whereby a sinter mix (raw mix or green mix) of iron ore fines, fluxes, fuel (coke breeze) and plant return fines (e.g. mill scale, blast furnace dust, and returned sinter fines etc.) are converted into a …
Process Description. For chrome processing technology, there are gravity separation, flotation, magnetic separation and other methods. Xinhai will determine the final processign technology according to the ore characteristic analysis report and mineral processing experiment report. The common gravity separation flows is that: through crushing ...
9) studied the sintering of chromite ore fines and the effect of various sintering param-eters, and found that the normal sintering process is suitable for the agglomeration of chromium ore fines. They reported a sinter yield of up to 70.6%, a tumbler index of 57.27% of the produced sinter and the incipient formation of 20% mol-ten phase (olivine).
Aug 22, 2021 Electricity is a major cost element in this extraction process. This work explores the sinterability of chrome ore. The objective of this study was to: (1) determine whether chrome ore is sinterable and, if so, (2) ascertain ways of achieving satisfactory properties at a low temperature of sintering.
May 01, 2021 Thus, some researchers have advocated for the direct utilization of low-grade chromite ore via the sintering process, which has been proven to be a feasible method [, , , ]. However, some problems remain unresolved, such as poor granulation properties, high solid fuel consumption, low sinter strength and productivity owing to its inferior ...
The invention provides a kind of chromite fine ore sintering processing method produced for stainless steel, chromite powder is mainly carried out granulation sintering by the method after laterite, because the wettability of laterite and water is good, in pelletization, laterite just can adhere to as forming core particle and chromite fine ore mutually grows up, granulate agglomerating, thus ...
May 01, 2021 Thus, some researchers have advocated for the direct utilization of low-grade chromite ore via the sintering process, which has been proven to be a feasible method [, , , ]. However, some problems remain unresolved, such as poor granulation properties, high solid fuel consumption, low sinter strength and productivity owing to its inferior ...
Nov 21, 2014 Sintering process is a generic term that is used to describe the process of agglomeration of a green mix of iron ores, fluxes and coke and plant solid wastes having a particle size of -10 mm so as to produce sinter which can withstand operating pressure and …
Oct 30 2013 0183 32 The Afrochine smelting plant is different to other smelting plants in Zimbabwe in that it has its own sintering plant which enables it to process alluvial fine chrome The sintering plant moulds the fine chrome into balls that can be taken to the furnac It also has a de-dusting system that traps dust and toxic elements from the furnace to...
May 01, 2021 Thus, some researchers have advocated for the direct utilization of low-grade chromite ore via the sintering process, which has been proven to be a feasible method [, , , ]. However, some problems remain unresolved, such as poor granulation properties, high solid fuel consumption, low sinter strength and productivity owing to its inferior ...
A method for improved process for production of High Carbon Ferrochrome (HCFeCr) and Charge Chrome comprising: blending dried chrome concentrate and chromite fines in all possible proportions to form raw feed ore; subjecting the raw feed ore to the step of mixing hydrated lime, molasses and bentonite as the binders to the said mixture to form briquetting mixture feed; forming briquettes from ...
mineral processing operation are pelletisation-sintering, pot sintering, and briquetting (Watt 1980). The palletising—sintering process developed by Outokumpu is used commonly for production of chromite pellets (Outokumpu 2005). In this process the chromite ore is first ground to …
divalent iron ore chrome spinel phase indicates enrichment of the glassy phase of FeO. The results of studies on the agglomeration of chromite ore fines were the basis of technological requirements for the design and construction of the sintering plant Aksu Ferroalloy Plant.
In the low-carbon process, charge chrome, quartzite, and reductants, are combined in a submerged arc furnace to produce ferro-silicon-chrome in a ‘dry’ or slag-free process. The ferro-silicon-chrome has a low C content. In an open arc furnace, chrome ore and lime are melted to form a slag. The slag is then
Chrome Ore Sintering Process Solution For Ore Mining. TSKZN is the first to adopt briquetting as the commercial process for agglomeration of chrome ore. pelletisation of poor iron ore beneficiation process – Crusher More about Iron Ore Beneficiation. Sintering and Pelletizing.
Apr 01, 2017 Iron ore sintering process is an important thermal-treatment stage to convert fine-grained iron-bearing materials ( 8 mm) into lumpish sinter, which characterizes high mechanical strength, excellent metallurgical properties (Remus et al., 2012), and can meet the gas permeability needed for efficient blast furnace operations (Clout and Manuel ...
In the low-carbon process, charge chrome, quartzite, and reductants, are combined in a submerged arc furnace to produce ferro-silicon-chrome in a ‘dry’ or slag-free process. The ferro-silicon-chrome has a low C content. In an open arc furnace, chrome ore and lime are melted to form a slag. The slag is then
The sintering tests of the manganese ore fines were performed on bench scale in a batch sintering reactor to clarify the process parameters of sintering for a commercial scale. Performance of the batch sintering test~ The batch sintcring system consisted of a butane burner. a …
Mar 09, 2013 The sintering process is a continuous process which is based on treating a charge mix (ore fines, return fines, and fluxes etc.) layer in presence of coke breeze to the action of a burner placed in the surface of the layer. In this way, heating takes place from the upper to the lower sections.
In the low-carbon process, charge chrome, quartzite, and reductants, are combined in a submerged arc furnace to produce ferro-silicon-chrome in a ‘dry’ or slag-free process. The ferro-silicon-chrome has a low C content. In an open arc furnace, chrome ore and lime are melted to form a slag. The slag is then
Aug 01, 2008 Chrome ore properties play a critical role in various pelletisation subprocesses (grinding, filtering, pelletisation and sintering) and slight variation in ore properties significantly affect the whole pelletisation process. Three ore samples (sample-A, B and C) were collected from different working faces of a chromite ore mine.
mine produces 3 grades of chrome ore, namely lumps, chips, and concentrates. The lumps and chips of chrome ores are used as raw material and are directly fed in submerged arc furnace, while the concentrates of chrome ore must undergo agglomerating treatment, such as sintering or pelletizing. Due . Chrome Ores on Ferrochrome Smelting
by agglomerating chrome ore fines by briquetting , si nce the day of commercial production of High Carbon. 68 INFACON XI Ferro Chrome in 1968. In the process of constant pursuit of energy conservation, FACOR came across several ... After ensuring sintering of the …
Mihail I. Gasik, in Handbook of Ferroalloys, 2013 8.2.3 Chromium Ores and Chromites Processing. Chromite ores, as might many others, be mined by open-pit and underground methods. The share of underground mining varies between countries and deposits. The extracted ore is subjected to crushing and sorting (normally rich ore containing more than 45% Cr 2 O 3 is supplied to the processing plant ...
The invention provides a kind of chromite fine ore sintering processing method produced for stainless steel, chromite powder is mainly carried out granulation sintering by the method after laterite, because the wettability of laterite and water is good, in pelletization, laterite just can adhere to as forming core particle and chromite fine ore mutually grows up, granulate agglomerating, thus ...
The -1 mm concentrate is fed to the Pelletising and Sintering plants for the production of sintered pellets. Chrome Recovery Plant (CRP) The Company introduced new technology in the jigging process of the Chrome Recovery Plant,in this process this section of the plant has the ability to …
Efficiency of the ferrochrome process type and pre-conditioning of the feed materials, pre-heating and pre-reduction. Agglomeration plants (Sinter, pelletisers, briquetting etc) enable Ferrochrome Smelting in Zimbabwe the consumption of chromite ore fines and concentrates Sintering; chromite pellets heated to silicates fusion point, binding the
PDF Sintering Characteristics of Indian Chrome Ore Fines Chrome concentrate consists of high-temperature melting oxides such as Cr2O3, MgO, and Al2O3. The presence of these refractory constituents makes the a very high melting .