3 results listed
Blast furnaces are essential departments that consuming the largest energy amount in integrated iron and steel factories. Blast furnaces consist of many vital subsections for survival of iron and steel production. Hot stoves are fundamental auxiliary subsections of blast furnaces consuming fuel and providing hot air into blast furnaces. In this study heat recovery and energy saving potential of hot stoves were investigated and new heat recovery possibilities were recommended. For this purpose, energy production costs per unit energy, specifications of hot stoves construction and fuel components were received from Kardemir A. Ş. blast furnace management. Three heat recovery options were considered in order to determine optimum heat recovery device in terms of energy recovery, saving and investment cost.
International Iron & Steel Symposium
UDCS
Erhan Kayabasi
Fikret Furtun
Mehmet Ozkaymak
Environmental susceptibility, increasing energy costs,
and competitive conditions in the market require the saving and
recovery of energy and energy related facts. In this respect, red
mud which is discharged from an industrial facility production
waste water treatment plant was studied due to the rate of
recoverability of magnetic materials. The mud sample was
experimentally studied by wet high intensity magnetic separation
method. Magnetic field intensity was chosen 17,000 Gauss to
maximize the separated iron powder level. Results presented that,
unit mass of red mud sample includes about 70% of magnetized
materials and 45% of the magnetized material composition is
elemental iron (Fe). This rates are seeing satisfactory to get profit
from the recovery process. The size of the gaining by the recovery
of iron dust is about 22,075,200/years.
International Iron & Steel Symposium
UDCS
Mehmet Ozkaymak
Selcuk Selimli
Cagil Koymatcik
In this study, a gas to gas heat exchanger (recuperator) was designed to increase combustion air temperature entering hot stoves by recovering the heat of flue gas released from hot stoves. Firstly, thermal calculations were done for different flow arrangement to determine the most efficient flow option in terms of heat transfer surface area (AR) and recovered heat (QR). In second step, a static simulation method was utilized to determine outlet temperatures of hot and cold flows and temperature distribution in entire recuperator for steady state condition for different three case studies. Thirdly economical calculations were
performed to monitor total savings (E) of three case studies. Overall, 2823 kW thermal energy and 95 377 $ economic saving potential was discovered by application of a heat recovery system to conventional hot stoves in our study.
International Combustion Symposium
INCOS2018
Erhan Kayabasi
Enes Kilinc
Rahman Calhan
Ahmet Canan
Abdulsamed Tabak
Fikret Furtun
Kamil Arslan
Mehmet Ozkaymak
Mehmet Ozalp