Blast Furnace Slag Granulation / Ironmaking / Our

Slag handling is an important aspect of modern blast furnace operation. Today, blast furnace slag is a saleable product (granulated slag sand used as CO 2-friendly substitute of clinker in cement production) rather than a difficult and costly waste material.Paul Wurth has developed the INBA ® slag granulation process, incorporating our proprietary dynamic INBA dewatering drum.

Products › Ironmaking and steelmaking › Slag Granulation

The slag granulation plant comprises three sections: for granulation, dewatering and storage. In the granulation section, the liquid slag is ‘quenched’ by pouring onto it an excess water stream. The evaporated water will be condensed in a condensing tower located above the granulation tank. This proven granulation process ensures economic

Hatch Ironmaking Technologies Dry Slag Granulation

Dry Slag Granulation. Water granulation is the most commonly used method to handle blast furnace slag and requires a granulation and a dewatering step to process the slag. In water granulation, the energy in the slag is lost from water evaporation and cooling and is difficult or impossible to recover.

Slag recycling recovery

The number of granulation plants for blast furnace slag has grown strongly. Since around 2000, the most important Chinese steel producers have been investing in granulation and grinding plants for blast furnace slag. It is currently estimated that 95 % of the blast furnace slag is granulated and used entirely in the cement and concrete industry.

Foundations for the slag condensation and granulation

The slag condensation and granulation plant is a fundamental component that allows the blast furnaces to produce pig iron while reducing the environmental impact as much as possible. Between 2008 and 2012 Semat completed all works in reinforced concrete and part of the refractory works for eight plants of this type for Ilva Taranto.

Slag Granulation with Continuous Dewatering Ironmaking

Slag Granulation with the INBA Dewatering System Molten slag is often considered as a waste material when it is cast into slag pits. INBA slag granulation and dewatering system is the proven route for converting molten slag into a value added product for the cement industry. The INBA system comprises two main components

Blast Furnace Slag Granulation at the Cast House IspatGuru

Fig 4 Schematic diagram of a slag granulation plant. Granulation section Here, the liquid BF slag is water quenched and solidified into small particles, eliminating the need for heavy crushing equipment. The liquid slag flows by runners from the BF to the granulation unit. From the runner, the liquid slag stream at around 1,500 deg C is poured into a high velocity water stream at the

AISTech2018 Dry Slag Granulation The Future Way to

The aim of the pilot-plant is a long term slag granulation test at first time with slag flows close to industrial plant sizes. In following figure a simplified flow sheet with the principle function of the STEP1 pilot plant is shown: Figure 3: Process scheme of Phase 2 STEP1 pilot-plant installation at

Granulated Blast Furnace Slag an overview

Adding higher amounts of slag results in a higher sulphate resistance and lower heat of hydration properties. When producing such cement, slag is usually the hardest to grind, and it forms the coarsest portion, while the cement is ground the finest [9]. A potential problem is moisture, which occurs in blast furnace slag during the granulation

Slag recycling recovery

The number of granulation plants for blast furnace slag has grown strongly. Since around 2000, the most important Chinese steel producers have been investing in granulation and grinding plants for blast furnace slag. It is currently estimated that 95 % of the blast furnace slag is granulated and used entirely in the cement and concrete industry.

INBA slag granulation system for blast furnace No.6 at JFE

May 17, 2019 Slag granulation system produces granulated slag, which is mainly used as a raw material for cement and concrete aggregate, by quenching molten blast furnace slag with water. Paul Wurth Group (hereinafter “PW”) has more than 260 references worldwide for the supply of slag granulation systems and INBA dewatering drums.

Foundations for the slag condensation and granulation

The slag condensation and granulation plant is a fundamental component that allows the blast furnaces to produce pig iron while reducing the environmental impact as much as possible. Between 2008 and 2012 Semat completed all works in reinforced concrete and part of the refractory works for eight plants of this type for Ilva Taranto.

Granulation and Heat Recovery from Metallurgical Slags

Ando J, Nakahara T, Onoue H, Ichimura S, Kondo M (1985) Development of slag blast granulation plant characterized by innovation of the slag treatment method, heat recovery, and recovery of slag as resources. Heavy Industries, Ltd. Technical Review, pp 136–142

AISTech2018 Dry Slag Granulation The Future Way to

The aim of the pilot-plant is a long term slag granulation test at first time with slag flows close to industrial plant sizes. In following figure a simplified flow sheet with the principle function of the STEP1 pilot plant is shown: Figure 3: Process scheme of Phase 2 STEP1 pilot-plant installation at

Design and Operation of Dry Slag Granulation Pilot Plant

CSIRO has been working on a dry granulation process, integrated with heat recovery, since 2002. It involves a rotary disc that atomizes molten slag to produce liquid droplets, which are rapidly quenched to become solid granules. The hot granules are fed to a counter-current moving packed bed heat exchanger, where they are further cooled and finally discharged at close to ambient temperature.

Economic and environmental evaluation of slag dry granulation

The estimated cap ital cost of a dry granulation plant to handle 300,000 t/y of slag is given in T able II as A$9.1M. As noted above, this As noted above, this

Dry slag granulation with energy recovery From inception

Download Citation Dry slag granulation with energy recovery From inception to pilot plant Paul Wurth has approached the topic of dry slag granulation with a simple but effective method in

Dry Granulation of Blast Furnace Slag for Energy Recovery

Aug 09, 2014 Using dry slag granulation at integrated steel plants mills will gain access to the sensible heat of the blast furnace slag. The recovered energy can be used for the production of steam or electricity or for other useful preheating processes. An energy potential for recovering 20 MW thermal energy or alternatively of about 6 MW electric power

The effect of size distribution of slag particles obtained

Feb 15, 2020 2.2. Methods. The solid slag particles from dry granulation were ground in a ball mill. Then, the slag powder was mixed with cement clinker. The ball mill used a fixed rotating speed of 250 rpm, and the diameters of the metal balls were 5 mm, 8 mm, 10 mm, 12 mm, and 15 mm, with mass fractions of 30%, 25%, 25%, 10%, and 10%, respectively .

Dry Granulation of Blast Furnace Slag Steel360 News

Using dry slag granulation at integrated steel plants will gain access to the sensible heat of the BF slag. The recovered energy can be used for the production of steam or electricity or for other useful preheating processes. An energy potential for recovering 20MW thermal energy or alternatively of about 6MW electric power generation from a

MINERALOGICAL CHARACTERISTICS OF SLAG (FROM THE

Total amount of slag in the "Depot Slag 1" amounts to about 9,190,940 tons with the medium content of Cu 0.715%, Au 0.282 g/t, Ag 4.5 g/t and Mo 0.0413% [2]. In the Flotation Plant Bor, the section C was originally designed for flotation of ore, and later adapted for flotation of slag [3]. The process of slag comminution in the

Slag Granulation: Latest News & Videos, Photos about Slag

Granulated Slag from SAIL’s IISCO Steel Plant in high demand, sends first consignment to Bhutan. The consignment which consists of 4000 tonnes of slag produced from the new blast furnace “Kalyani” will be utilised in cement plants in Bhutan. 19 Aug, 2015, 05.49 PM IST

Innovative Job in Slag Granulation Plant of BF-4 of RSP

ROURKELA: Employees of Rourkela Steel Plant (RSP) have carried out conversion of drives of emergency water valve of the INBA Cast House Slag Granulation Plant of Blast Furnace-4 (BF-4) which has led to smoother functioning of the furnace. INBA cast house Slag Granulation system of BF-4 is a unit which not only granulates the molten slag but also reduces the load on slag circuit.

Project Portfolio Slag Granulation Plant Globex

The envisaged annual capacity of the plant is granulation of 530,000 tons of liquid slag. The plant for granulation of blast furnace slag is an addition made within the scope of the modernization project for the existing Blast Furnace, and is also part of the technological entity for production of crude iron.

INBA slag granulation system for blast furnace No.6 at JFE

May 17, 2019 Slag granulation system produces granulated slag, which is mainly used as a raw material for cement and concrete aggregate, by quenching molten blast furnace slag with water. Paul Wurth Group (hereinafter “PW”) has more than 260 references worldwide for the supply of slag granulation systems and INBA dewatering drums.

Slag recycling recovery

The number of granulation plants for blast furnace slag has grown strongly. Since around 2000, the most important Chinese steel producers have been investing in granulation and grinding plants for blast furnace slag. It is currently estimated that 95 % of the blast furnace slag is granulated and used entirely in the cement and concrete industry.

Dry Granulation of Blast Furnace Slag Steel360 News

Using dry slag granulation at integrated steel plants will gain access to the sensible heat of the BF slag. The recovered energy can be used for the production of steam or electricity or for other useful preheating processes. An energy potential for recovering 20MW thermal energy or alternatively of about 6MW electric power generation from a

Dry slag granulation with energy recovery From inception

Download Citation Dry slag granulation with energy recovery From inception to pilot plant Paul Wurth has approached the topic of dry slag granulation with a simple but effective method in

Cutting-Edge By-Product Recycling for Iron- & Steelmaking

Dry slag granulation with heat recovery. Primetals Technologies, voestalpine Stahl, the FEhS Building Materials Institute and the University of Leoben joined forces in an R&D program to develop a new dry-granulation technology using air to cool molten slag and recover the lost heat energy.

Economic and environmental evaluation of slag dry granulation

The estimated cap ital cost of a dry granulation plant to handle 300,000 t/y of slag is given in T able II as A$9.1M. As noted above, this As noted above, this

Dry Granulation of Blast Furnace Slag for Energy Recovery

Aug 09, 2014 Using dry slag granulation at integrated steel plants mills will gain access to the sensible heat of the blast furnace slag. The recovered energy can be used for the production of steam or electricity or for other useful preheating processes. An energy potential for recovering 20 MW thermal energy or alternatively of about 6 MW electric power

Slag Granulation: Latest News & Videos, Photos about Slag

Granulated Slag from SAIL’s IISCO Steel Plant in high demand, sends first consignment to Bhutan. The consignment which consists of 4000 tonnes of slag produced from the new blast furnace “Kalyani” will be utilised in cement plants in Bhutan. 19 Aug, 2015, 05.49 PM IST

MINERALOGICAL CHARACTERISTICS OF SLAG (FROM THE

Total amount of slag in the "Depot Slag 1" amounts to about 9,190,940 tons with the medium content of Cu 0.715%, Au 0.282 g/t, Ag 4.5 g/t and Mo 0.0413% [2]. In the Flotation Plant Bor, the section C was originally designed for flotation of ore, and later adapted for flotation of slag [3]. The process of slag comminution in the

Slag granulation plant russianpatents

The invention relates to the granulation of molten slag directly from metallurgical furnaces. Known installation granulated slag containing slag chute, which consistently are hydrogenerator, a hopper sump with grate and overflow device and coupled with well installed the airlift, connected in turn with the dehydrator carousel with feeding hopper and the discharge hopper, and well air pump

RECOMMENDED GUIDELINE FOR IRON & STEEL SECTOR

slag. The hot liquid slag is made into slag granules by means of high pressure water jets in the Slag Granulation Plant in the Cast House itself (sometimes separate SGP is located at a distance from the furnace proper). If the slag is not granulated in SGP, it is poured in the Slag Dumping Yard. vii) Pig Casting Machine (PCM):

Ground granulated blast-furnace slag Wikipedia

Ground-granulated blast-furnace slag (GGBS or GGBFS) is obtained by quenching molten iron slag (a by-product of iron and steel-making) from a blast furnace in water or steam, to produce a glassy, granular product that is then dried and ground into a fine powder.Ground-granulated blast furnace slag is highly cementitious and high in CSH (calcium silicate hydrates) which is a strength enhancing

Slag Granulation ChestofBooks

Slag Granulation. These difficulties have prevented the universal adoption of this means of slag disposal, and have caused the development of others, of which by far the most important is "granulation." This was first practiced in this country, so far as known to me, by Captain T. C. Jones, at a small blast-furnace near Lynchburg, Va., and was