Monitoring mineral wool production using real-time machine vision

Trdič, F.; Širok, Brane; Bullen, P. S.; Philpott, D.

doi:10.1016/s1077-2014(99)80010-2

Cited by 23 publications

(15 citation statements)

References 4 publications

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“…Melted samples were quenched in a water bath at room temperature in order to rapidly cool the materials, which is essential to produce vitreous materials. Three temperatures were used to cast the materials: 1400, 1450 and 1500 ºC, such range was based on the method of rock wool production cited in the literature 15,16 . Temperatures of materials during the process were measured using an optical pyrometer.…”

Section: Sample Preparationmentioning

confidence: 99%

“…Rock wools are man-made mineral fibers (MMMF) fabricated with the melting of basalt or other natural rocks at temperatures above 1400 °C 15,16 . The thermo-acoustic characteristics of fire resistance, and not rendering toxic smoke ensure to rock wools a broad consumer market in the industries of construction, automotive, and electricelectronics, among others.…”

Section: Introductionmentioning

confidence: 99%

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Recovery of Steelmaking Slag and Granite Waste in the Production of Rock Wool

Alves¹,

Espinosa

Tenório

2015

Mat. Res.

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Steelmaking slag and residues from granite cuttings are industrial wastes with considerable production, however limited applications. This work studied an inertization and recovery process of such wastes as raw materials into production of rock wool (i.e. a thermo-acoustic insulator with growing market). Several batches were produced aiming the chemical proprieties of a currently marketed rock wool. Mixtures were casted at temperatures of 1400-1500 °C, then quenched in water and also poured into a Herty Viscosimeter. Produced materials with thickness smaller than 500µm were characterized by chemical analyses, XRD, SEM, EDS and DTA. ThermoCalc software was used to simulate the cooling curves of rock wools. Results showed that incorporation of wastes does not affect the main qualities of rock wool, the thermal insulation and prevention of fire spread. Raw material batches of rock wools may assimilate up to 66% of granite waste, or 53% steelmaking slag, or 70% combining both materials.

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Section: Sample Preparationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Recovery of Steelmaking Slag and Granite Waste in the Production of Rock Wool

Alves¹,

Espinosa

Tenório

2015

Mat. Res.

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“…In melt spinning system, four unified stainless steel spinning wheels with 200 mm diameter was adjusted at designed positions, where could let the slag melt flow in a suitable track to form better fiber [7]. The rotating wheels speed could be controlled in the range of 30005 000 rpm, or circumferential speed varied in the range of 31.42~52.36 m/s by changing the voltage on motor …”

Section: Experimental Materials and Proceduresmentioning

confidence: 99%

“…There were several fabrication methods for mineral fiber, like in-rotating water spinning method, Taylor method, melt extraction method, and melt spinning method, with a wide variation of quality and quantity of the final products [5][6][7][8]. Among various fabrication techniques, melt spinning was the commonly applied one.…”

Section: Introductionmentioning

confidence: 99%

Fabrication of mineral fiber via melt spinning method from blast furnace slag

Wang¹,

Hur²

2014

Journal of the Korean Crystal Growth and Crystal Technology

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Mineral fiber, or be called mineral wool when it assembles in large amounts, is a kind of wide applied manmade material with excellent thermal and acoustic insulation properties. In this work, mineral fiber was produced via melt spinning method by using iron blast furnace slag as raw material. Two critical experimental parameters for fabrication were investigated: melt pouring temperature and rotating speed of spinning wheels. The mineral fiber produced under the condition of melt pouring temperature 1500 o C and spinning speed 4000 rpm, showed the smoother surface and most quality, while the others had rough surfaces or with heavy shots. In general, mineral fibers with the size in the range of 12~49 µm in diameter and 8~130 mm in length can be fabricated by this method, and the production rate is more than 34 wt.%, which could be up to 57 wt.% at maximum.

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“…There are several production methods for mineral wool fibres, with a wide variation of quality and quantity of the final product [1]. The most commonly used mineral wool production process is the fiberisation process of molten rock on fast rotating spinning discs [2][3][4]. At the furnace outlet, the melt should be homogeneous, singlephased, without any solid inclusions, and can be characterised by density, surface tension and viscosity.…”

Section: Introductionmentioning

confidence: 99%