slag granulation process

Process for granulation of slag - Paul Wurth S.A.

Process for granulation of slag . United States Patent 4374645 . Abstract: The granulation of molten material, blast furnace slag for example, is accomplished by wetting the slag with a stream of water and thereafter transporting the thus formed granules away from the point of granulation with the water stream. Water consumption is minimized ...

(PDF) A Review of Granulation Process for Blast Furnace Slag

2021-10-8 · Yu, et al. [188] reviewed the granulation process for blast furnace slag. They reported that for every pig iron production accompanied by 0.3-0.6 tons of blast

Some Fundamental Aspects of Dry Slag Granulation

2014-7-8 · granulation process and the dynamics of slag droplet collision with solid surfaces will be covered. Published studies on the thermodynamics of sulphur in slags and kinetics of sulphur transfer between blast the furnace slags and oxidising gas mixtures have been reviewed to ascertain the effects of oxygen ial pressure on part

Products › Ironmaking and steelmaking › Slag Granulation ...

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 granulation and

Slag Granulation with Continuous Dewatering Ironmaking

2021-6-16 · second granulation tank, one granulation unit can handle the slag of two tap holes. `Continuous filtering and evacuation of dewatered slag sand up to its storage facility without inter-ruptions for purging. ` High reliability. `Measurement of slag flow, due to the design of the drum and the dewatering process.

AISTech2018 Dry Slag Granulation – The Future Way to ...

2018-7-27 · The wet granulation process operates with a high water to slag ratio of about 8:1. The advantage of the wet process is that it is accepting wide fluctuations in the mass flow and physical/chemical properties of the slag. However, the wet process faces also significant disadvantages:

Granulation and Heat Recovery from Metallurgical Slags ...

2019-12-9 · Process credits compared to wet granulation: 15.72 A$/t slag. Process credits compared to air-cooled slag: 59.79 A$/t slag. Scattered data show HREs in the range of 40–70%, with most data hovering around 50%. A challenge in this regard is the fundamental trade-off between the heat quality and the degree of slag vitrification, which is ...

Slag recycling - recovery

There are various processes on the market for the granulation of blast furnace slag. The most important process is cooling in a water bath. The most common methods are the RASA system from Rasa Corporation, the INBA system (Fig. 16) from Paul Wurth, a company of the SMS group, and the IJ GRAN system from Danieli-Corus.

PRODUCTION, CHARACTERISTICS AND USE OF

2015-5-22 · The ferrochrome slag products are quality assured and CE mark ed according to the stand-ards EN 13242 and EN 13043 [3,4]. The main requirements for CE marking are the aggregate size and size distribution, resistance to fragmentation, durability against studded tyres and durability against freeze/thaw. Figure 5: Slag granulation process Water from

Process for granulation of slag - Paul Wurth S.A.

Process for granulation of slag . United States Patent 4374645 . Abstract: The granulation of molten material, blast furnace slag for example, is accomplished by wetting the slag with a stream of water and thereafter transporting the thus formed granules away from the point of granulation with the water stream. Water consumption is minimized ...

Some Fundamental Aspects of Dry Slag Granulation

2014-7-8 · granulation process and the dynamics of slag droplet collision with solid surfaces will be covered. Published studies on the thermodynamics of sulphur in slags and kinetics of sulphur transfer between blast the furnace slags and oxidising gas mixtures have been reviewed to ascertain the effects of oxygen ial pressure on part

Dry slag granulation: producing valuable by-products from ...

We developed a new, integrated dry granulation and heat recovery process which promotes sustainability and full value recovery. Molten slag is atomised under centrifugal forces exerted by a spinning disc to produce droplets which are then quenched and solidified using air to recover the heat.

Products › Ironmaking and steelmaking › Slag Granulation ...

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 granulation and

Slag Granulation with Continuous Dewatering Ironmaking

2021-6-16 · second granulation tank, one granulation unit can handle the slag of two tap holes. `Continuous filtering and evacuation of dewatered slag sand up to its storage facility without inter-ruptions for purging. ` High reliability. `Measurement of slag flow, due to the design of the drum and the dewatering process.

Granulation and Heat Recovery from Metallurgical Slags ...

2019-12-9 · Process credits compared to wet granulation: 15.72 A$/t slag. Process credits compared to air-cooled slag: 59.79 A$/t slag. Scattered data show HREs in the range of 40–70%, with most data hovering around 50%. A challenge in this regard is the fundamental trade-off between the heat quality and the degree of slag vitrification, which is ...

Further processing and granulation of slags with

2011-3-3 · that no slag, matte, or alloy responds in similar fashion to a granulation practice. This paper addresses three issues, namely: • Water-granulation of BOF steel slag, without processing it to render it environmentally safe, physically and chemically acceptable for use by the construction industry, and the process economical

Apparatus for and process of water granulating matte or slag

1997-5-30 · Process and apparatus for granulation of slag: 1985-01-22: Monteyne et al. 65/19: 4461636: Installation for continuous treatment of molten materials to obtain pelletized products: 1984-07-24: Gagneraud et al. 4416690: Solid matte-oxygen converting process: 1983-11-22: Richards et al. 75/26: 4230477: Apparatus for granulating molten slag: 1980 ...

PRODUCTION, CHARACTERISTICS AND USE OF

2015-5-22 · The ferrochrome slag products are quality assured and CE mark ed according to the stand-ards EN 13242 and EN 13043 [3,4]. The main requirements for CE marking are the aggregate size and size distribution, resistance to fragmentation, durability against studded tyres and durability against freeze/thaw. Figure 5: Slag granulation process Water from

转杯粒化工艺高温熔渣换热数值模拟

2020-4-7 · Heat transfer characteristics of molten slag in rotary cup granulation process FANG Wei-yang 2, WANG Hong 1,2, ZHU Xun 1,2, DING Yu-dong 1,2, LIAO Qiang 1,2 1. Ministry of Education Key Laboratory of Low-grade Energy Utilization Technologies and2.

Further processing and granulation of slags with

2011-3-3 · that no slag, matte, or alloy responds in similar fashion to a granulation practice. This paper addresses three issues, namely: • Water-granulation of BOF steel slag, without processing it to render it environmentally safe, physically and chemically acceptable for use by the construction industry, and the process economical

Products › Ironmaking and steelmaking › Slag Granulation ...

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 granulation and

Apparatus for and process of water granulating matte or slag

1997-5-30 · Process and apparatus for granulation of slag: 1985-01-22: Monteyne et al. 65/19: 4461636: Installation for continuous treatment of molten materials to obtain pelletized products: 1984-07-24: Gagneraud et al. 4416690: Solid matte-oxygen converting process: 1983-11-22: Richards et al. 75/26: 4230477: Apparatus for granulating molten slag: 1980 ...

转杯粒化工艺高温熔渣换热数值模拟

2020-4-7 · Heat transfer characteristics of molten slag in rotary cup granulation process FANG Wei-yang 2, WANG Hong 1,2, ZHU Xun 1,2, DING Yu-dong 1,2, LIAO Qiang 1,2 1. Ministry of Education Key Laboratory of Low-grade Energy Utilization Technologies and2.

钢铁渣处理利用术语及定义 - 豆丁网 - Docin

2008-9-25 · 3.3.1.7 钢渣风淬工艺 air-granulation process steelslag 熔融钢渣经渣罐(或中间包)流出的渣,被压力风(或蒸汽)吹散,并在空气中冷却成粒的方法。 3.3.2 高炉渣处理工艺 3.3.2.1 炉前冲渣工艺 process watergranulation blastfurnace 高炉熔渣经渣沟直接在高炉旁被压力水淬冷成粒的方法。

Dry Granulation of Blast Furnace Slag - Steel360

2019-4-4 · Dry slag granulation process is essentially to atomize the liquid slag and then to cool the particles rapidly so as to produce a glassy slag. Atomization is done using a rotary cup air blast atomizer (Fig 1). The particles cool as they travel through the air

OBJECTIVE: SCOPE: 3. PROCESS

2019-12-13 · vi) Slag Granulation Plant (SGP) / Slag Dumping Yard: During the process of iron making, the impurities are fluxed and removed as 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).

Prediction on crystallization behaviors of blast furnace ...

2018-7-1 · In the centrifugal granulation and heat recovery system, the granulated slag droplets experiences a complex cooling process. Specifically, the molten BF slag is consecutively poured onto a high-speed rotating container (cup/disk), subsequently, the slag is projected outwards owing to the centrifugal force and then broken into small droplets [12 ...

Project Portfolio - Slag Granulation Plant | Globex ...

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. The technology of slag processing through granulation starts by

Cutting-Edge By-Product Recycling for Iron- &

In the Baosteel Slag Short Flow (BSSF) granulation process developed by Baosteel, the liquid slag is transferred to a granulation drum where it is treated with injected water with a dwell time between three and five minutes, which significantly reduces the amount of

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