slag wool manufacturing horizontal furnace

Alumina in a spin - Industrial Minerals

to produce the same mineral wool bulk chemistry can have markedly different energy consumption. Indeed, energy consumption, in the form of foundry coke to fuel the cupola furnace is the single largest production cost for mineral wool manufacturers. To place this in some perspective, Danish mineral wool leader, Rockwool, claims

What's the difference between basalt rockwool and slag ...

Even though there are more than 200 domestic rock mineral wool manufacturers in China, but most of them using slag as main raw material, which has alkaline substances such as calcium oxide and magnesium oxide at a high level, acidity coefficient is below 1.5.

US4320244A - Melting furnace for the production of mineral ...

In the manufacture of high temperature mineral wool insulation such as rock wool blankets for insulating boilers and other surfaces heated to temperatures of 1200° F., from blast furnace slag, basalt and other low-cost, primarily siliceous raw materials, a liquid or glass melt is first formed for subsequent fiberizing to provide the insulation ...


slag consists primarily of the silica and alumina from the original iron ore, combined with calcium and magnesium oxides from the flux stone. It comes from the furnace in a molten state with temperatures exceeding 1480˚C (2700˚F). Mineral wool slag is a furnace product made from blast furnace slag, through which a stream of air or steam is blown.

Rock wool, mineral wool, & slag wool building insulation

Characteristics of mineral wool, slag wool also commonly referred to as rock wool used for building insulation. Photo guide to identification of different building insulation materials. Properties of old or antique mineral wool as well as modern mineral wool …

Mineral wool - Wikipedia

High-temperature mineral wool (HTMW) is a type of mineral wool created for use as high-temperature insulation, usually for use in industrial furnaces and foundries, generally defined as being resistant to temperatures above 1,000 °C.

11.18 Mineral Wool Manufacturing - US EPA

11.18 Mineral Wool Manufacturing 11.18.1 General1,2 Mineral wool often is defined as any fibrous glassy substance made from minerals (typically natural rock materials such as basalt or diabase) or mineral products such as slag and glass.


these particles melt and form slag. The melting point of the refractory is the temperature at which a test pyramid (cone) fails to support its own weight. Size: The size and shape of the refractories is a part of the design of the furnace, since it affects the stability of the furnace structure. Accurate size is extremely important to properly ...

Slag - Wikipedia

The slag can also be used to create fibers used as an insulation material called slag wool. Basic slag. Basic slag is a co-product of steelmaking, and is typically produced either through the blast furnace - oxygen converter route or the electric arc furnace - ladle furnace route.


in a tank furnace and containing a long slot that shapes glass into a sheet as it is drawn through it Gob Lump of molten glass used to make a piece of glassware Mineral wool Inorganic fibrous material made from molten glass Slag wool Mineral wool made from blast-furnace slag Tempering Process of heating glass above its annealing point and then ...

Blast Furnace Slag Grinding Mill | Vertical Slag Mill ...

SINOMALY has been developing and manufacturing blast furnace slag grinding mills since 2007. This vertical slag mill can be installed in a slag powder production line with an output range from 45t/h to 300t/h. The structure of the slag grinding mill is similar to the cement mill and raw mill, except that the feeding method is different.

how to manufacture slag wool -

slag wool manufacturing horizontal furnace. Sustainable Choices for Conserving Energy The remaining volume of raw material is blast furnace slag. Slag Wool rock and slag wool insulation manufacturers . Mineral wool - Wikipedia.

Environmental Product Declaration Mineral Wool Loose

70% blast furnace slag, with the remaining volume of raw materials being natural rock. Due to the similarities between the two types of mineral wool, an aggregate view will be used throughout this document that combines both slag and rock wools.

Industry Sector Study - SMARTWaste

In the manufacture of mineral wool insulation, rock material and two slag materials - (blastfurnace slag and steel slag) are melted in a cupola furnace at approximately 1500 °C. The two types of slag act as a flux to help the molten rock flow and lower the melting temperature.

Mineral wools (glass, stone/slag, HT) - Miljøstyrelsen

glass wool Glass wool Stone (rock) wool Slag wool Refractory ceramic fibres RCF HT-fibre AES-fibres New fibres Mineral wools Man made vitreous fibres MMVF. This evaluation includes the mineral wools produced in Denmark, that is insulation glass wool, stone (and slag) wool and the new HT-fibre (high-alumina, low-silica wool used for insulation).

US20100331169A1 - Fused quartz horizontal furnace and ...

A furnace assembly includes first and second sections. The first section includes first and seconds ends, a first joint disposed at the first end, a conical portion at a second end, a first filter disposed between the first and second ends, and a lumen extending through the first section in fluid communication with the first filter. The second section includes first and second ends, a second ...

Thermafiber Mineral Wool Insulation

and blast furnace slag), therefore it is naturally : noncombustible. Thermafiber products are classified as ... SPF insulation manufacturers are specific about which type of thermal barrier is acceptable for their individual products. This requires additional research and ... with mineral wool Safing™ Insulation in …

EURIMA - Production Process

For stone wool this is the rock or recycled material plus energy. Manufacturers are working hard to increase the recycled content of mineral wool whilst maintaining the high quality of their product. For glass wool the raw materials are sand, limestone and soda ash, as well as recycled off-cuts from the production process.

Sustainable Choices for Conserving Energy and Preserving ...

The remaining volume of raw material is blast furnace slag. Slag Wool Insulation Slag wool insulation is composed principally of fibers manufactured by melting the primary component, blast furnace slag, with a combination of some natural rock, with or without binders, depending on the product.

Insulation Types | Fiberglass, Mineral Wool, Spray

Mineral wool insulation (also called rock or slag wool insulation): Made from rock, blast furnace slag, and other raw materials which are melted and spun into fibers to resemble the texture of wool. Mineral wool comes in batts, rolls or loose-fill forms.

Barring Furnace - 911Metallurgist

A tilting type barring furnace is used. It is heated by L.P. gas and the specified maximum rated output of the burner is achieved with a gas pressure of 140 kPa. It is presently operated on 135 kPa, i.e. the maximum attainable pressure from our supply system. The advantages of using this type of furnace relate mainly to safety and ease of handling.

Rock wool : Iron and steel slag products : NIPPON SLAG ...

Blast furnace slag and other materials are either heated and re-melted in a cupola or electric arc furnace at 1,500 - 1,600℃, or else after being removed from the blast furnace the molten slag is kept at approximately the same high temperature and is allowed to flow out from the bottom of the furnace.

091102 Mineral wool - European Commission

manufacturers. The limited number of producers in the sector makes commercial data ... blast furnace slag, and limestone or dolomite. In addition, for both glass and stone wool the batch may contain recycled process or product waste. For glass wool, other forms of waste glass (cullet) are also ... Mineral wool production is a high temperature ...