Historical slag dumps are of increasing interest due to economic, environmental or archaeological reasons. Geophysical investigations can help accessing the potential reuse of slag material to recover metallic raw material or for the estimation of the hazard potential of the buried slag material due to dissolution occurrence.
2019-12-12 · Raw material for Cement. The largest demand for blast furnace slag is cement. Ground granulated blast furnace slag has potential hydraulic performance that can be shown under the action of cement clinker, lime, gypsum and other activators, so it is a high-quality cement raw material.
2014-9-23 · Two types of porcelain tiles with steel slag as the main raw material (steel slag ceramics) were synthesized based on the CaO-Al 2 O 3 -SiO 2 and CaO-MgO-SiO 2 systems, and their bending strengths up to 53.47 MPa and 99.84 MPa, respectively, were obtained. The presence of anorthite, α-quartz, magnetite, and pyroxene crystals (augite and diopside) in the steel slag ceramics were very …
2018-11-7 · Slags reused as concrete raw material. Slag is a partially vitreous byproduct of the process of smelting ore, which separates the desired metal fraction from the unwanted fraction. Blast furnace slag is furthermore classified into granulated blast furnace slag and air-cooled blast furnace slag.
Steel slag production line - Sanme Mining Machinery - Crushers Vibrating feeder, jaw crusher, hydraulic cone crusher, vibrating screen, belt conveyor, magnetic separator. Steel slag crushing process: Raw material (less than ...
In this study, the blast furnace slag of the Baotou Steel and Iron Company was used as the main raw material to prepare glass ceramics with diopside as the main crystal phase. The composition of the parent glass was designed by thermodynamic calculations with FactSage software. Small amounts of the nucleation agent Cr 2 O 3 were then added to the parent glass to induce crystallization ...
2021-1-12 · The value of the slag as a secondary raw material depends of the final application and the processing costs. The critical factor is the cost of the valorization process, consisting of total process energy need and cost of it, and cost of labour and equipment needed for processing. The end user value of the product greatly depends of the final ...
2020-5-21 · This paper reports the characteristics of ferrochrome slag and its feasibility as aggregate in refractories aiming to substitute refractory raw materials. Refractory castable specimens were formulated with ferrochrome slag as an aggregate and commercial calcium aluminate cement as a binder. Objective was to prepare refractory specimens with a maximum slag utilization but simultaneously ...
2017-4-10 · slag as a raw material for ceramic production was discussed. 2. Raw materials and methods 2.1. Raw materials and formula design Since steel slag has poor plasticity after cooling; if slag is used as the raw material for ceramic production, a proper clay (kaolin, pyrophyllite, etc.) should be added to improve the formability and firing performance.
2021-3-19 · and slag, which constitute 24 million tons. 2. Use of ash and slag waste Ash and slag waste (ASW) is a raw material for building material industry, which may successfully compete in a raw material market effectively substituting natural resources (GOST 25592-91, GOST 25818-91, TU 34-70-10347-81, GOST 530-95, GOST 25485-82, GOST 21520-89 and ...
Presently, there is an increased emphasis on the use of blended cement like slag cement, fly ash cement etc. This reduces the energy requirement for cement production or reduces the CO2 release in the environment as the portland cement clinker is produced utilizing calcium carbonate based raw material. The replacement of calcium carbonate by alternative raw material like slag may again reduce ...
2017-9-13 · Carbide slag, also known as calcium carbide residue (CCR), is a by-product of the hydrolysis of calcium carbide. It is commonly generated from the industrial production of ethylene, polyvinyl chloride (PVC) and other products as a solid waste. Currently, it has no value for recovery and is commonly landfilled. At some Chinese plants, this slag is used as an alternative raw material for cement ...
The possibility of using polydisperse steel-smelting slag for the production of type B asphalt concrete is investigated, the possibility of its use as a mineral powder, crushing screening and crushed stone is considered. As a result of the study, it was found that a promising area for the use of slag raw materials in the technology for the preparation of asphalt mixes is: as a mineral powder ...
2020-12-22 · 2) Glass body-raw material for cement production; 2. Application Scope Of Ground Slag Powder. Finely ground slag powder is the powder made by drying, grinding and grading water slag. It is commonly referred to as slag powder. The full name is granulated blast furnace slag powder, also called slag powder. The main raw material for production is ...
2021-9-25 · Slag of thermal power plants as an attractive raw material for porous fillers production Development, energy and resource saving in the chemical and food technologies 3rd International Scientific Conference «Chemical Technology and Engineering»: Proceedings – June 21–24th, 2021, Lviv, Ukraine – Lviv: Lviv Polytechnic National University ...
2015-1-25 · Instrument analysis is widely used for the qualitative and quantitative elemental analysis of raw materials, iron (hot metal), steel, slag, refractories, and sludges samples. Compared to the wet analysis, the advantage of instrument analysis is that it is cost effective and multi elemental besides being very fast. The worries caused by ...
2015-5-22 · World HCFeCr production is 6.0 million tonnes. Correspondingly 1.1-1.6 t slag / t FeCr is produced depend-ing on the raw material basis. Essentially all FeCr is produced in submerged arc furnaces, while the role of competitive technologies like DC is limited. In all furnaces fluxes are used to optimize the slag composition.
2019-8-21 · Raw material for Portland blast furnace slag cement Blending material for Portland cement Concrete admixtures Low Na 2 O and K 2 O Raw material for cement clinker (replacement for clay) Latent hydraulic property Material for civil engineering works, ground improvement material (Backfill material, earth cover material, embankment material, road ...
2021-4-6 · The use of ladle furnace slag as a secondary raw material in the cement industry brings advantages to both industries, the waste producer (steel industry) and the end user (cement industry): For the steelmaking plants, the former waste material is now upgraded to the status of by-product with a stable market and a positive economic value.
2004-1-18 · Steel slag is a secondary resource of raw material in metallurgical plant. It can be directly taken back to sintering, ironmaking and steelmaking, and used as flux, from which the useful elements can be recovered7. It is advantage that the premelted flux is more easily remelted
Economically Smart. Environmentally Sound. An essential raw material for the glass industry, Calumite Slag is an environmentally beneficial alumina source used in all types of soda-lime-silica glass production. Its unique melting and refining properties enable producers to reduce energy consumption and reduce CO 2 and NO x emissions while improving product quality
2011-11-30 · Highlights Slag valorization as raw material in low energy cement production. Raw meal design. Determination of the influence of slag addition on the physicochemical properties of the cement. Clinker microstructure and characterisation by XRD/QXRD and SEM/EDS micro-analysis.
2021-1-18 · The value of the slag as a secondary raw material depends of the final application and the processing costs. The critical factor is the cost of the valorization process, consisting of total process energy need and cost of it, and cost of labour and equipment needed for processing. The end user value of the product greatly depends of the final ...
2020-6-15 · The Great Wall of Xinxiang actively responds to the national environmental protection requirements and carries out closed design of raw material stacks. Currently, there are two closed raw m aterial storage yards with a total slag capacity of 140,000 tons. Open and bright, with direct supply and unloading, buffer unloading, fabric storage and ...
2020-5-15 · Currently, there are two closed raw material storage yards with a total slag capacity of 140,000 tons. Open and bright, with direct supply and unloading, buffer unloading, fabric storage and perfect design. Overall settings: 1. Harden and prevent leakage treatment on the ground of the yard, and design a drainage system around it.
Steelworks slag is also suitable as a filler and as a raw material for clinker production. The average prices obtained in 2016 for slag are also of interest: the highest price of 89.2 US$/t was achieved for GBFS, while air-cooled blast furnace slag brought 8.5 US$/t and steelworks slag 5.9 US$/t.
When using the BOF slag as a raw material for AAC production, the bulk density of the AAC specimens gradually decreased from 780 kg/m 3 to 670 kg/m 3 in the range of 0–30 wt.% of BOF slag, and then dropped to 554 kg/m 3 with 40 wt.% of BOF slag added. On the other hand, the compressive strength of the AAC specimens produced with 5 wt.% and 10 ...
2020-4-5 · Raw materials rich in SiO 2 and Al 2 O 3 form an amorphous aluminosilicate material as a hydrated compound, while those rich in CaO produce calcium silicate hydrate (C–S–H) [2,3,4,5]. In the alkali-activated slag (AAS) obtained from the granulated blast-furnace slag (GBFS), the main hydration product is C–S–H, or C–A–S–H, due to ...
2017-11-1 · The raw material used for experimental purposes is long-storage phosphorous production slag from slag disposal areas of KazPhosphate LLP, Zhambyl Branch (NDPhP), collected during the period 1990 till 1995 (Fig. 1b, c, d).
2018-12-30 · However, the raw material resources used for production are limited and mostly belong to non-renewable resources. Many scholars have explored and studied the use of steel slag,,, copper tailings,, and phosphorus slag, as raw materials to prepare cement clinker. The results have proved the feasibility of some industrial wastes as raw ...
2021-4-28 · The raw material mill or slag mill adopts the edge transmission model. After materials are transported into the ore grinder continuously via the feeder, the motor drives the mill cylinder to rotate through the reducer. Materials are conveyed to the first cabin in a spiral way along the hollow shaft and the steel balls and the materials …
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