india slag heat recovery in Mexico

Integration of coal gasification and waste heat recovery from …

Here we report a novel approach to extract the waste heat and iron from high temperature steel slags (1450–1650 o C) produced in the steel industry, i.e., …

RESEARCH OVERVIEW ON RECOVERY OF WASTE HEAT …

waste heat recovery process of liquid slag into dry centrifugal granulation process and waste heat recovery process. After dry centrifugal granulation, the temperature of blast furnace slag particles was about 900°C. Then the particles entered the packed bed for heat transfer, resulting in hot air of 500-600°C [5].

Heat recovery from molten blast furnace slag in a fluidized …

@misc{etde_20246612, title = {Heat recovery from molten blast furnace slag in a fluidized bed} author = {McQueen, M, Pickles, C A, Sridhar, R, and Lakshmanan, V I} abstractNote = {A method for heat recovery from molten blast furnace slag was investigated using a fluidized bed and a molten LiCl-KCl salt mixture. The effect of air …

Waste heat recovery from hot steel slag on the production …

The heat recovery efficiency increased from ∼76% and ∼78% to ∼81% when the steel slag thickness decreased from 400 and 300 to 200 mm, corresponding to reductions in the steel slag mass from 3.96 and 2.97 to 1.98 t with a blower air volume of 14687 m 3 /h. Therefore, the research results showed that numerical simulation can not …

India's new waste heat recovery units total 175MW in …

India: The total new waste heat recovery (WHR) unit capacity of cement producers is expected to reach 175MW in the two years ending on 31 March 2022. Rating agency ICRA has valued the total investment in new WHR units over the period as up to US$230m, according to the Press Trust of India.

Preparation of Slag Wool by Integrated Waste …

The present paper investigated the process of the slag wool fabrication using high temperature blast furnace (BF) slag modified by coal ash (CA). The liquidus temperature and viscosity of the slag system …

Waste Heat Recovery from Blast Furnace Slag by Chemical …

Blast furnace (BF) slag, which is the main byproduct in the ironmaking process, contains large amounts of sensible heat. To recover the heat, a new waste heat-recovery system—granulating molten BF slag by rotary multinozzles cup atomizer and pyrolyzing printed circuited board with obtained hot BF slag particle—was proposed in …

Granulation and Heat Recovery from Metallurgical Slags

Waste heat recovery from high-temperature slag is the latest potential way to significantly reduce energy consumption and carbon dioxide emissions in the iron and steel industry [6, 7] and can ...

Waste heat recovery of blast furnace slag in moving bed: …

The physical method is the main method of waste heat recovery from BFS (Sun et al., 2015), which concentrates on the development of various granulation technologies through which the molten slags are granulated into small particles, and the thermal heat in the slag is exchanged with a heat transfer medium (air, steam and …

(PDF) Multi-Step Recycling of BF Slag Heat via Biomass for …

Slag heat recovery is an ongoing research topic and has the potential to. Iron- and steelmaking processes create slags, valuable by-products. Industrial utilisation of slag as a lower-value secondary mineral source has been established for decades. ... In FY-20, India's steel production was 109 MT, and it is the second-largest steel producer ...

Waste Heat Recovery from Blast Furnace Slag by …

Heat-Recovery System Figure 10 shows the material and heat ﬂow in the proposed system of slag heat recovery. The energy of slag is supplied to pyrolyze the PCB powder, and then it is converted into chemical energy through the endothermic reactions. The calculation is per-formed under the assumption that the heat of hot

Development of Molten Slag Dry Granulation and Heat Recovery in …

The steel industry is an energy-intensive and CO2-intensive industry and the greenhouse gas (GHG) emission in the steel industry was more than 2.95 billion tons in 2012, which faces the great…

A new technological approach to the granulation of slag …

The system of dry, drum-ball granulation of slag with the possibility of heat recovery is also being piloted . However, based on a critical analysis of the published research, it can be noted that the major shortcoming of these technologies will be reduced productivity, high intensity of failures, and high price of repair. ... Eng. India Ser. D ...

Orient Cement commissions Phase 2 of Chittapur cement plant waste heat

India: Orient Cement has successfully commissioned Phase 2 of the new waste heat recovery (WHR) plant at its Chittapur cement plant in Karnataka. Reuters has reported that the new phase raises WHR power capacity at the plant to 10.1MW.

Granulation and Heat Recovery from Metallurgical Slags

A comprehensive review of waste energy of slag and its recovery methods are presented. The waste heat of slags amounts to ∼220 TWh/year. Recovery of three …

Future trend of terminal energy conservation in steelmaking …

In steelmaking process, molten slag like BOF (Basic Oxygen Furnace) slag or EAF (Electric Arc Furnace) slag was discharged after steel tapping, and then poured into some kinds of apparatus for slag granulation and heat recovery as shown in Fig. 1.Presently, the available physical methods for molten slag heat recovery include …

Heat Recovery from B. F. Slag at Home and Abroad

The need for heat recovery from molten blast furnace slag was analysed. Because of the physical properties of slag and the non-continuous operation of blast furnace, heat recovery from molten slag was difficult. Rotating drum granulation, stirring granulation, air blast granulation, continuous casting, centrifugal granulation and chemical reactions …

Slag Resource Recovery Via Air Granulation | SpringerLink

5.1 Part I: Blast Furnace Slag Atomization at Full-Scale. Ecomaister began studying the slag atomization of iron-making blast furnace (BF) slags in 2013 and demonstrated the production of atomized BF slags at a laboratory scale (Table 1, POSCO-2013 and SSAB-2015).Early laboratory scale experiments that remelted BF slags and …

Slag heat recovery

• In heat recovery lies a high but reachable potential for the operation of steel mills as well as it is contributingto ecological improvements of steel mills. − Re-usage of thermal energy ...

Granulation and Heat Recovery from Metallurgical Slags

This process recov- Slag products are screened and may be used as cement ered 60% of the waste heat in form of heated air at 500 °C. feedstock, abrasive material, fine aggregate for mortar and The granulated slag were less than 10 mm in diameter and 13 Journal of Sustainable Metallurgy Fig. 8 Schematic flow diagram of rotating single-drum ...

Energies | Free Full-Text | Heat Recovery from High Temperature Slags

Waste heat recovery from high temperature slags represents the latest potential way to remarkably reduce the energy consumption and CO2 emissions of the steel industry. The molten slags, in the temperature range of 1723–1923 K, carry large amounts of high quality energy. However, the heat recovery from slags faces several …

Dry Slag Granulation

T1 - Dry Slag Granulation - Investigations on the Behaviour of Liquid Blast Furnace Slag in Combination with Heat Recovery. AU - Kofler, Markus. N1 - no embargo. PY - 2014. Y1 - 2014. N2 - Blast furnace slag is well known as by-product of hot metal production in integrated steel and iron mills. About 300 million tons of this slag is produced ...

Development of a BOF slag blast granulating and heat …

@misc{etde_5512250, title = {Development of a BOF slag blast granulating and heat recovering system} author = {Ando, J, Tajiri, S, Ijima, F, Nakahara, T, Ichimura, S, and Kondo, M} abstractNote = {Mitsubishi Heavy Industries started in 1977 a joint study with Nippon Kokan K.K. for the development of a BOF slag blast granulation and heat …

Development of a heat recovery system from …

absorption, Heat recovery, Steelmaking slag . Abstract . We will introduce the recent development of a ew slag heat recovery system, which consists n of a roll-type continuous slag solidification process and a slag heat recovery process. This work is conducted as one of the COURSE50 national projects in Japan. In this process, the molten slag

Exploiting the Molten Slag to Decarbonize Iron …

To address this issue, centrifugal granulation-assisted thermal energy recovery (CGATER) is proposed and is regarded as the leading slag treatment technology. The CGATER provides a viable …

Recent Developments in Commercial Scale Dry Slag …

Ecomaister-Hatch has recently developed and brought to commercial scale a reliable and simple dry slag granulation that allows for simultaneous energy recovery from slag. …

The technological calculation for synergistic system of BF slag …

@misc{etde_22397628, title = {The technological calculation for synergistic system of BF slag waste heat recovery and carbon resources reduction} author = {Duan, Wenjun, Yu, Qingbo, Zuo, Zongliang, Qin, Qin, Li, Peng, and Liu, Junxiang} abstractNote = {Highlights: • A system was proposed to achieve the goal of energy saving and emission …

Potential Waste Heat Recovery Analysis From Molten Steel …

In this line, this work presents the main outcomes of the investigation carried out in the search of a technical solution for heat capture and reutilization from one of the …

Towards Greener Industry: Modelling of Slag Heat Recovery

The steel industry, in accordance with the momentum of greener industry, has welcomed the changes and is actively pursuing that objective. One such activity is the commitment to energy recovery from by-products such as slag since the average energy content of ferrous slags is around 1 to 2 GJ/tslag. The recovered energy could, then, be …

Granulation of molten slag for heat recovery

A large amount of various molten oxides, such as steelmaking slag and lava, is cooled without heat recovery. For example, the amount of slag as a byproduct of steelmaking, over 1723 K in temperature, reaches 30 million tones annually. Although the systems for efficient heat recovery from molten slag have been proposed, the …