Cognition on the Molten Blast Furnace Slag Granulation Techniques in Contemporary China

2013 ◽  
Vol 634-638 ◽  
pp. 3118-3122
Author(s):  
Lin Li ◽  
Guang Xiao Ma ◽  
Dai Jun Wang ◽  
Ruo Yu Zang ◽  
Yong Qi Li
Keyword(s):  
Blast Furnace ◽  
Blast Furnace Slag ◽  
Molten Slag ◽  
Waste Heat ◽  
Water System ◽  
Contemporary China ◽  
Bf Slag ◽  
Design Ideas ◽  
Furnace Slag ◽  
Slag Granulation

Introduce characters and applications of granulation techniques of the molten blast furnace slag in contemporary China, describe characters and design ideas of two types of granulation boxes, represent three types of circulating granulation water systems, put forward matching proposal between the molten slag granulation system and the circulating granulation water system, analyze contemporary research and problems of waste heat recovery of the molten BF slag.

Progress in Molten Blast Furnace Slag Treatment Using Dry Centrifugal Granulation Technology

2014 ◽  
Vol 675-677 ◽  
pp. 1406-1410
Author(s):  
Jia Bin Zhu ◽  
Shu Zhong Wang ◽  
Ming Luo
Keyword(s):  
Blast Furnace ◽  
Blast Furnace Slag ◽  
Waste Heat ◽  
Recovery Process ◽  
Water Quenching ◽  
Huge Amount ◽  
Slag Treatment ◽  
Bf Slag ◽  
Granulation Technology ◽  
Furnace Slag

The molten blast furnace slag (BF slag) is discharged at the temperature of about 1400-1550 °C, which contains a large amount of heat. At present, water quenching is the main technology to treat the BF slag, but this method not only consumes a huge amount of water, but also fails to recover the waste heat. Compared with water quenching, the dry centrifugal granulation has obvious advantages. There is no water consumed and the waste heat can be recovered efficiently, thus this technology has great potential. This technology mainly contains two processes: the granulating process and the heat recovery process. The present development statuses on those two processes are summarized respectively and the prospect of dry centrifugal granulation technology is forecasted.

Bio-Oil Production by Pyrolysis and Liquefaction of Biomass Using Blast Furnace Slag as Heating Source

2011 ◽  
Vol 347-353 ◽  
pp. 2604-2607 ◽  
Author(s):  
Si Yi Luo ◽  
Chao Li ◽  
Chui Jie Yi ◽  
Yang Min Zhou
Keyword(s):  
Blast Furnace ◽  
Blast Furnace Slag ◽  
Waste Heat ◽  
Biomass Pyrolysis ◽  
Heating Source ◽  
Bio Oil ◽  
Promising Application ◽  
The Cost ◽  
Furnace Slag ◽  
Slag Granulation

In this paper, a novel biomass pyrolysis and liquefaction system using blast furnace as heating source was presented. The system is composed of three parts: blast furnace slag granulation, biomass pyrolysis centrifuge reactor, and the waste heat of blast furnace as the heat source. As the cost of biomass pyrolysis was greatly reduced, this system has a promising application prospect.

Application of High Ti-Bearing Blast Furnace Slag in Field of Building Materials

2014 ◽  
Vol 1052 ◽  
pp. 392-395 ◽  
Author(s):  
Li Xia He
Keyword(s):  
Sustainable Development ◽  
Blast Furnace ◽  
Environmental Protection ◽  
Blast Furnace Slag ◽  
Building Materials ◽  
Waste Material ◽  
Great Production ◽  
Bf Slag ◽  
Furnace Slag

High Ti-bearing blast furnace (BF) slag is the smelting waste of vanadium titano-magnetite. It has great production but low utilization. The high Ti-bearing BF slag is used in building materials industry, which recycles waste material, saves resources and energy, benefiting environmental protection and achieving sustainable development of resources. Study on the recycling of high Ti-bearing BF slag will be an important subject of our researches in future.

The Experimental Study of Molten Blast Slag Dry Granulation

2011 ◽  
Vol 356-360 ◽  
pp. 1882-1885 ◽  
Author(s):  
Yang Min Zhou ◽  
Chao Li ◽  
Li Li Xu ◽  
Si Yi Luo ◽  
Chui Jie Yi
Keyword(s):  
Blast Furnace ◽  
Blast Furnace Slag ◽  
Heat Recovery ◽  
Waste Heat Recovery ◽  
Waste Heat ◽  
Particle Diameter ◽  
Test Bed ◽  
Dry Granulation ◽  
Furnace Slag ◽  
Slag Waste

Based on the comprehensive experimental test-bed of blast furnace slag waste heat recovery, we study the impacts which are caused by the changes of the key parameters, such as blast furnace slag discharged temperature, the speed of the granulation device, on the particle diameter distribution and sphericity, so as to master the best operating parameters of the blast furnace slag dry granulation, and provide experimental basic materials for blast furnace slag waste heat recovery. The results show that: when the discharged temperature of the blast furnace slag is controlled in 1400°C～1450°C, and the speed of the granulation device is controlled above 2000r/min, the sphericity is better, and 80% of the particle’s diameter will be 2～5mm.

scholarly journals Numerical simulation analysis of rotary cup centrifugal blast furnace slag

2022 ◽  
Vol 355 ◽  
pp. 02011
Author(s):  
Mengyuan Yang ◽  
Jingfu Wang
Keyword(s):  
Numerical Simulation ◽  
Blast Furnace ◽  
Liquid Film ◽  
Blast Furnace Slag ◽  
Molten Slag ◽  
Rotation Speed ◽  
Simulation Analysis ◽  
Solid Particles ◽  
Dry Granulation ◽  
Furnace Slag

In the process of centrifugal dry granulation of blast furnace slag, the thickness of the liquid film at the outlet of the rotor will have a significant impact on the degree of crushing of the slag after leaving the rotor and the size of the solid particles formed. Therefore, this paper uses the VOF method to analyse the flow of molten slag inside the cup. The results have shown that the slag flow has a significant effect on the thickness of the liquid film and the linear relationship is obvious; the thickness of the liquid film decreases with the increase of the diameter of the rotary cup and the rotation speed, and the negative correlation with the diameter of the cup is more obvious; Secondly, as the depth of the cup increases, the thickness of the liquid film decreases first and then increases. The inclination angle of the cup wall has little effect on the thickness of the liquid film.

Waste Heat Recovery from Blast Furnace Slag by Chemical Reactions

JOM ◽  
2012 ◽  
Vol 64 (8) ◽  
pp. 997-1001 ◽  
Author(s):  
Yuelin Qin ◽  
Xuewei Lv ◽  
Chenguang Bai ◽  
Guibao Qiu ◽  
Pan Chen
Keyword(s):  
Blast Furnace ◽  
Chemical Reactions ◽  
Blast Furnace Slag ◽  
Heat Recovery ◽  
Waste Heat Recovery ◽  
Waste Heat ◽  
Furnace Slag
Sign in / Sign up

Export Citation Format

Share Document