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 ...
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
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
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
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.
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:
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 ...
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.
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 . 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 ...
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
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.
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
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.
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 ...
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
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 ...
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
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.
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
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
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 ...
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.
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。
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
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).
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 ...
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
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
Copyright © 2020.Company name All rights reserved.SiteMap