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definition applies to smelting operations and primary steelmaking operations (blast furnace or ferrochrome smelting). In the blast furnace slag originates from the gangue in the ore, ash in the coal, and the fluxes (lime, doloma, Al2O3) that were added to melt the gangue and coal ash so that the slag can be tapped from the blast furnace.
Except for heating ladle furnace is an excellent place to make desulfurization with slag, Catreatment, and other alloying and trimming additions. The process outline from converter to ladle furnace, vacuum treatment, and casting is presented in Figure
May 06, 2016· Description
Once the temperature and chemistry are correct, the steel is tapped out into a preheated ladle by tilting the furnace. For plaincarbon steel furnaces, as soon as slag is detected during tapping, the furnace is rapidly tilted back towards the deslagging side, minimizing slag carryover into the ladle.
Slag removal. Keeping furnace slags on the molten steel too long can result in a reversion of elements such as phosphorus back into the steel. To avoid this, slag can be removed at slagskimming stations, where the ladle is tilted forward and a rake scrapes the slag into a slag pot parked beneath the ladle.
In the Furnace Hot Metal, (along with slag) is processed from the raw material which gets collected in the hearth and blast furnace gases come out of blast furnace from the top. ii) Cast House: In the Cast House Hot Metal, slag are tapped from the Furnace tap hole and Hot metal and slag are separated in the refractory lined main iron trough.
Furnace vessel shell distortion and destruction during a long campaign must be overcome with use of improved alloys. Slag entrainment or carryover from furnace to ladle, a key to clean steel, should be controlled using electromagnetic sensors, IR camera systems and other currently available techniques.
Ladle furnace basic slag (ladle slag, LS) is a byproduct of the steel refining process. There is a great amount of LS generated worldwide every year and the current solution is simply landfilling ...
Dec 01, 2019· Hello everyone. BLAST FURNACE The blast furnace is a countercurrent gas/solids reactor in which the descending column of burden materials [coke, iron ore and fluxes/additives] reacts with the ascending hot gases. The process is continuous with ra...
Steel Steel Basic oxygen steelmaking: More than half the world''s steel is produced in the basic oxygen process (BOP), which uses pure oxygen to convert a charge of liquid blastfurnace iron and scrap into steel. The basic oxygen furnace (BOF) is a refractorylined, tiltable converter into which a vertically movable, watercooled lance is inserted to blow oxygen through nozzles at ...
These include furnace or tap slag, raker slag, synthetic or ladle slags. Figure 1 presents a diagram of the general flow and production of different slags in a modern steel plant. Following processing and metal recovery, the nonmetallic products from the furnace, raker and ladle slags
Blast furnace tapping operations involve removing the slag and then tapping molten lead from the furnace into molds or ladles. Some smelters tap metal directly into a holding kettle which keeps the metal molten for refining.
While most of the furnace slag is recycled for use as an aggregate, excess steel slag from other operations (raker, ladle, clean out, or pit slag) is usually sent to landfills for disposal. MARKET SOURCES Steel slag can normally be obtained from slag processors who collect the slag .
The blast furnace (BF) iron slag, also known as a ground granulated blast furnace slag (GGBFS), the electric arc furnace carbon or stainless steel slag (EAFC/S), and the ladle furnace basic slag (LS), also called the white slag, have been regarded as precursors which exhibit good mechanical properties following alkali activation and can be ...
498 slag ladle products are offered for sale by suppliers on, of which utensils accounts for 1%. A wide variety of slag ladle options are available to you, such as stainless steel. You can also choose from stocked slag ladle, as well as from ce / eu, ciq slag ladle, and whether slag ladle is metal.
Steel Ladle Refractory Solutions. HarbisonWalker International is one of the largest domestic manufacturers of steel ladle refractories. Our steel ladle refractory solutions are customized based on shopspecific conditions to optimize refractory performance and improve safety, refractory life and yield.
Jan 10, 2020· After the molten iron flows out of the blast furnace tap hole, it passes through the molten iron channel system, after slag and iron separation and pretreatment, flows into the molten iron ladle or torpedo tanker. When the blast furnace is tapped, the temperature of the molten iron is .
Ladle furnace slag is produced through the addition of lime (CaO), and dolomitic limestone () in the electric furnace. The resulting byproduct, ladle furnace slag, contains high concentrations of calcium oxide. Due to high CaO concentrations the material can be used in the production process of cement, as a limestone replacement.
Case: Slag pot / slag ladle made by CHAENG (Great Wall Steel Casting Co.,Ltd) has good property. On July 18, 2008, the Great Wall steel casting signed the first contract of slag pot, under the situation of financial crisis and shrinking market, on the same year on December 12 we signed 13 pcs of slag pot with South Korea''s posco, since 2008 we have signed the contract of more than 50 types of ...
refractory materials Common types of ladle refractories: (1) Clay refractory brick, clay brick A12O3 content is generally between 30% 50%, the price is low. Mainly used for ladle permanent layer and ladle bottom. (2) high alumina brick. Brick A12...
While most of the furnace slag is recycled for use as an aggregate, excess steel slag from other operations (raker, ladle, clean out, or pit slag) is usually sent to landfills for disposal. MARKET SOURCES. Steel slag can normally be obtained from slag processors who collect the slag .
The liquid hot metal and slag are tapped from the blast furnace intermittently or continuously depending on the size of the furnace. Hot metal is tapped into a torpedo car which is transported by rail to the hot metal pretreatment station, and the blast furnace slag is tapped into a slag ladle which is transported by trucks to a slag pit.
At the base of the furnace are two exits. The slightly higher located one is to extract the waste product, the slag. This flows into a slag ladle for further transport. Slag is often used for driveways. The lower located exit is used for the molten iron which flows to the torpedo wagon. It is then transported to an iron mill for further processing.
the blast furnace, (b) Hot metal ladle in desulphurization station, (c) Basic oxygen furnace, (d) Ladle furnace, (e) Continuous casting exit. Property of Ternium Siderar company. 62 Figure 42 Ternium Sider ar steel ladle: (a) Ladle plan, (b) Picture of internal bottom. 63 Figure 43 Steps of ladle furnace .
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