Submerged Arc Furnace System Assembly
Contact Information
Phone: +86-931-5347777-01
Email: dh@dahongs.com
Headquarters Address:
21F, Rongxin Building, No. 118 Jianlan Road, Qilihe District, Lanzhou City
Production Base:
Processing Factory of Dahong Engineering Equipment Co., Ltd., Qiantangjiang Street, Lanzhou New Area
Flue Gas Purification
Related Equipment
Main body of the electric arc furnace
Device used for water cooling components of the metallurgical furnace such as transformers
Detailed Introduction
The hot blast furnace flue gas purification project refers to the treatment of high-temperature flue gas generated during the production process of the hot blast furnace to remove dust, harmful gases (such as sulfur dioxide, nitrogen oxides, etc.), and other pollutants, ensuring it meets environmental emission standards.
Flue Gas Characteristics
Hot blast furnace flue gas generally has the following characteristics:
High temperature: The flue gas temperature is usually between 400°C and 800°C.
High dust content: The flue gas contains a large amount of dust, mainly from raw materials and reducing agents.
Harmful gases: The flue gas may contain harmful gases such as sulfur dioxide (SO₂), nitrogen oxides (NOₓ), and carbon monoxide (CO).
Corrosiveness: Some components in the flue gas (such as sulfides) may be corrosive.
Composition of Flue Gas Purification System
The hot blast furnace flue gas purification project usually includes the following main parts:
(1) Flue Gas Collection System
Hood: Used to collect the high-temperature flue gas generated by the hot blast furnace.
Duct: Transports the flue gas to the purification equipment.
(2) Cooling System
Waste Heat Boiler: Utilizes the residual heat of the flue gas to generate steam while lowering the flue gas temperature.
Air Cooler: Further reduces the flue gas temperature through air cooling.
(3) Dust Removal System
Cyclone Dust Collector: Used to remove large particulate dust from the flue gas.
Bag Filter: Used to remove fine dust from the flue gas, with dust removal efficiency reaching over 99%.
Electrostatic Precipitator: In some cases, electrostatic precipitators are used to remove dust.
(4) Desulfurization and Denitrification System
Desulfurization Equipment: Uses wet desulfurization (such as limestone-gypsum method) or dry desulfurization (such as activated carbon adsorption) to remove sulfur dioxide from the flue gas.
Denitrification Equipment: Uses selective catalytic reduction (SCR) or selective non-catalytic reduction (SNCR) technology to remove nitrogen oxides from the flue gas.
(5) Harmful Gas Treatment System
Carbon Monoxide Treatment: Converts carbon monoxide into carbon dioxide through combustion or catalytic oxidation.
Other Harmful Gas Treatment: Applies corresponding treatment technologies based on the composition of the flue gas.
(6) Emission System
Chimney: Discharges the purified flue gas into the atmosphere.
Online Monitoring System: Monitors pollutant concentrations in the flue gas in real time to ensure compliant emissions.
Flue Gas Purification Process Flow
(1) Flue Gas Collection: Collects high-temperature flue gas generated by the hot blast furnace through hoods and ducts.
(2) Cooling: Lowers the flue gas temperature using waste heat boilers or air coolers.
(3) Dust Removal: Removes dust from the flue gas using cyclone dust collectors, bag filters, or electrostatic precipitators.
(4) Desulfurization and Denitrification: Removes sulfur dioxide and nitrogen oxides from the flue gas using desulfurization and denitrification equipment.
(5) Harmful Gas Treatment: Treats carbon monoxide and other harmful gases in the flue gas.
(6) Emission: Releases the purified flue gas into the atmosphere through the chimney.
Technical Features
High-efficiency Dust Removal: Uses high-efficiency dust removal equipment to ensure the dust concentration in the flue gas meets environmental requirements.
Desulfurization and Denitrification: Employs advanced desulfurization and denitrification technologies to effectively remove harmful gases from the flue gas.
Waste Heat Utilization: Recovers heat from the flue gas through waste heat boilers to improve energy utilization efficiency.
Automated Control: Uses an automated control system to achieve automatic monitoring and adjustment of the flue gas purification process.
Keyword:
flue
gas
equipment
control
materials
material
Related Equipment
Online Consultation
We have always been actively committed to comprehensive cooperation with domestic and foreign customers. While absorbing foreign technology, most equipment is localized to meet users' economic requirements, striving for long-term rapid development in the domestic electric furnace upgrade and environmental protection energy-saving fields; the company's basic concept for developing electric furnace equipment is to find methods that are both technically and economically excellent.
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Phone
Headquarters Address
21F, Rongxin Building, No. 118 Jianlan Road, Qilihe District, Lanzhou City
Production Base:
Lanzhou New Area Qiantangjiang Street Dahong Engineering Equipment Co., Ltd. Processing Factory