Product Description
Shaft/blast furnace with circular cross section. The shell is made of steel plate, and the shell is lined with firebrick.
The blast furnace body is divided into five parts from top to bottom: throat, body, waist, belly and cylinder. The blast furnace has the advantages of good economic index, simple process, large production, high labor efficiency and low energy consumption, etc..
The raw materials used for blast furnace smelting mainly consist of three parts: iron ore, fuel (coke), and flux (limestone).
During blast furnace production, iron ore, coke, and slag making flux (limestone) are loaded from the top of the furnace, and preheated air is blown in from the tuyere located at the bottom of the furnace along the furnace circumference.
At high temperatures, the carbon in coke (some blast furnaces also inject auxiliary fuels such as coal powder, heavy oil, and natural gas) and the oxygen blown into the air are burned to produce carbon monoxide and hydrogen. During the process of rising in the furnace, the oxygen in the iron ore is removed, thereby reducing to obtain iron.
The molten iron produced is discharged from the iron mouth.
Unreduced impurities in iron ore combine with fluxes such as limestone to form slag, which is discharged from the slag outlet.
The generated gas is discharged from the top of the furnace, and after dust removal, it is used as fuel for hot air furnaces, heating furnaces, coke ovens, boilers, etc.
The main product of blast furnace smelting is pig iron, as well as by-products such as blast furnace slag and blast furnace gas.
Product Parameters
450m3 Inner Dimensions
| Serial No. |
Name |
|
Unit |
Inter dimensions |
| Furnace type |
Effective volume |
m3 |
450 |
| Diameter |
Hearth Diameter(d) |
mm |
5400 |
| Waist diameter(D) |
mm |
6300 |
| Throat diameter(d1) |
mm |
440 |
| Height |
Effective height(h0) |
mm |
19270 |
| Dead iron layer height(h0) |
mm |
1035 |
| Furnace hearth height(h1) |
mm |
3100 |
| Furnace bosh height(h2) |
mm |
2800 |
| Furnace waist height(h3) |
mm |
1400 |
| Furnace height(h4) |
mm |
10300 |
| Furnace throat height(h5) |
mm |
1670 |
| Angle |
Furnace belly angle |
° |
80.5211 |
| Furnace angle |
° |
84 |
1. Blast furnace smelting - first phase
1. Scale of construction
The construction of the blast furnace production line in this project mainly consists of 1 × 90m2 sintering machine(with an annual output of 930,000 tons of sinter ore)and 1×450m3 blast furnace, can produce about 550,000 tons of pig iron.
3.2.2 Sintering system
(1)Sintering process
Build a new 90m2 belt sintering machine with an annual output of 930,000 tons of sintered ore. Including the following content:
1)Raw material (fuel) processing system
2)Batching system
3)Mixing system (first mixed, second mixed)
4)Main sintering system
5)Sinter cooling system
6)Cold ore granulation system
7)Finished product warehouse type, finished product ore conveying system
8)Tail dust removal system
9)Head dust removal system
The annual operation time of the sintering machine is 330 days, the utilization coefficient of the sintering machine is 1.3t/m2h, and the annual output of 930,000 tons of sintering can be calculated.
(2)Composition of sintering workshop
The main production system of the sintering workshop consists of the following 5 parts:
1)Fuel preparation system: including fuel coarse crushing chamber and fuel fine crushing chamber.
2)Batching and mixing system: including a batching chamber, a primary mixing chamber and a secondary mixing chamber.
3)Sintering and cooling system: including sintering cooling chamber, electric dust removal of machine head, main shaft fan chamber, waste heat recovery system, main chimney.
4)Granulation system: including finished product screening chamber and finished sinter bin.
5)Cold return mining and ash conveying system.
(3)Main technical and economic indicators of sintering system
The main technical and economic indicators of the sintering system are as follows:
| Serial No. |
Item |
Unit |
Index |
| 1 |
Sintering machine |
Piece×m2 |
1×90 |
| 2 |
Utilization Coefficient |
t/m2h |
1.3 |
| 3 |
Annual working days |
d |
330 |
| 4 |
Sinter yield |
104t/a |
93 |
| 5 |
Sinter quality |
|
|
| 5.1 |
Fe |
% |
55 |
| 5.2 |
CaO/SiO2 |
|
1.6~1.8 |
| 6 |
Unit consumption of sintered ore |
|
|
| 6.1 |
Concentrate fines |
kg/t |
940 |
| 6.2 |
Flux |
kg/t |
96 |
| 6.3 |
Coke powder and coal |
kg/t |
50 |
| 6.4 |
Gas |
GJ/t |
0.07 |
| 6.5 |
Electricity |
kWh/t |
40 |
| 6.6 |
Water |
t/t |
0.3 |
3.2.3 Blast furnace process system
(1)Blast furnace process
According to the product planning of this project, it is necessary to build a 450m³ blast furnace production line with an annual output of 550,000 tons of pig iron.
1 ×450m³The facilities of the blast furnace project are composed as follows:
·Blast furnace charging system (ore tank, inclined bridge winch, bellless top charging)
·Blast furnace body
·Tuyere platform casting house
·Kalukin top combustion hot air furnace
·Waste gas and crude gas dust removal system
·Hydraulic slag flushing facilities
·Blast furnace coal injection facilities
·Dry bag gas dust removal facilities
·Top gas residual pressure power station(TRT)
·Blast furnace blower station
·Rear oxygen-enriched blast system
·Dust removal facilities of cast house
·Mine tank dust removal facilities
·Circulating water pump room (including soft water system)
·High pressure water booster pump room
·Slag flushing pump room
·Feeding facilities
·Power supply facilities
·The "Three Electricity in One" Automation Control System
·Telecommunication facilities
·Fire Alarm
·Various related piping (channel) facilities
·Road and rail transport facilities
(2)Table of Main Technical and Economic Indicators of Blast Furnace System
450m3 Table of Main Technical and Economic Indicators of Blast Furnace
| Serial No. |
Index Name |
Unit |
Numerical value |
Remarks |
| 1.Smelting index |
| 1 |
Effective volume of blast furnace |
m3 |
450 |
|
| 2 |
Utilization Coefficient |
t/m3.d |
3.5 |
|
| 3 |
Coke ratio |
kg/t |
400 |
|
| 4 |
Coal ratio |
kg/t |
150 |
|
| 5 |
Furnace top pressure |
Mpa |
0.05-0.15 |
|
| 6 |
Hot blast temperature |
ºC |
1100~1150 |
|
| 7 |
Furnace grade TFe |
% |
~55 |
|
| 8 |
Clinker ratio |
% |
≥90 |
|
| 9 |
Slag rate |
kg/t |
330 |
|
| 10 |
Annual working days of blast furnace |
d |
347 |
|
| |
|
|
|
|
| 2.. Products and accessories |
| 1 |
Pig iron |
104t/a |
55 |
|
| 2 |
Grain slag |
104t/a |
21 |
Containing water 11.5% |
| 3 |
Blast furnace gas |
104Nm3/h |
12 |
|
| 3..Main raw and fuel consumption |
| 1 |
Sinter ore |
104t/a |
82 |
|
| 2 |
Rawore |
104t/a |
9 |
|
| 3 |
Coke |
104t/a |
22 |
|
| 4 |
PCI coal
|
104t/a |
8 |
|
| 5 |
Solvent (limestone, dolomite, etc.) |
104t/a |
1.2 |
|
| 4.Unit power consumption of pig iron |
| 1 |
Blast |
Nm3/t |
1546 |
|
| 2 |
Blast furnace gas |
Nm3/t |
810 |
|
| 3 |
Steam |
Kg/t |
30 |
|
| 4 |
Compressed air |
Nm3/t |
1.5 |
|
| 5 |
Oxygen |
Nm3/t |
0.032 |
Maintenance oxygen |
| 6 |
Water: Circulating water |
m3/t |
42.9 |
|
| 7 |
New water |
m3/t |
8.0 |
|
4. Public auxiliary facilities
The construction of public and auxiliary facilities in the first phase of this project mainly includes the construction of a new 6MW power plant, a 110KV main step-down substation, a central laboratory, an auto repair and machine repair workshop, a comprehensive pipeline network in the factory area, an oxygen generation station, an air compressor station, a water supply station, a water supply and drainage system, a ventilation system, a smelting slag yard, etc. The construction of public and auxiliary facilities in Phase II mainly includes dust removal system, power supply system, water supply and drainage system, etc.
5.Engineering economy
5.1.Project overview
The project consists of 1×90m2 sintering machine with an annual output of 930,000 tons of sinter. 1×450m3 blast furnace production line, producing about 550,000 tons of iron.
Packaging & Shipping
40 feet container or customized
Our Advantages
We provide professional customized services to meet customers' different capacity needs.
Company Profile
Introduction to Liaoning JinRong Machinery Import and Export Co., Ltd
Liaoning JinRong Machinery Import and Export Co., Ltd is a company with its own import and export rights, and is a large group company integrating industry and trade. The registered capital of the company is RMB 180 million. The company includes metallurgical equipment manufacturing company, electric furnace equipment manufacturing company, electrical equipment manufacturing branch, mechanical processing branch and metallurgical design and research Institute.
Our company can undertake various of metallurgical equipment design, manufacturing, installation, commissioning, trial production turnkey project. Our company can provide mining machinery and equipment, ironmaking blast furnace, sintering machine, coke oven, converter, electric arc furnace, ladle refining furnace, continuous casting equipment, steel rolling furnace, steel rolling production line, steel structure plant and crane and other metallurgical equipment and metallurgical machinery. Various other types of mechanical equipment can also be provided.
Our company is the direct agent of Anshan Steel, Bensteel, Fusteel and other large steel mills, the variety of steel is complete: pipe, plate, profile, wire and so on are in stock. If there are special specifications, material requirements, etc., we can organize and arrange ordering and selection, schedule production and rolling to ensure supply.
Our company has a history of 30 years, and now has established friendly contacts with more than 120 countries and regions and carried out various aspects of cooperation. We welcome customers from all over the world to visit our company.
Our company address is 1-51-901-3041, 9th Floor, Jiangsu Building, Qianyuan Emerging Market, Tiexi District, Anshan City, Liaoning Province.
| Total Number of Staffs |
585 |
| Total Number of Managers |
40 |
| Total Number of Technical Staffs |
160 |
| Total Number of QC Staffs |
15 |
| Total Number of workers |
310 |
| Total Number of other staffs |
60 |
| Contact person |
Mr .Su |
Position |
President |
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Detailed Photos
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