Lances are oxygen lance pipes manufactured with various ranges of OD. There is also a range of bigger oxygen lance pipes with larger 2-1/2″ O.D. Especially, the demand has arisen from Electric Arc Furnaces (EAF) and Trash Burning Furnaces as they are seeking for good-performance oxygen lance pipes at affordable prices. Presently, the 2-1/2″ O.D. lance pipe is not used generally and has not been manufactured. In the meantime, there is currently a demand for 2-1/2″ OD oxygen lance pipes from newly constructed clean centres, but there are few manufacturers that can supply such products. The trend for larger size electric furnaces is creating a need for larger diameter lance pipes to allow sufficient oxygen to be blown into the furnace during the diminished heating operation time.
Today, we would like to introduce our flexibility to manufacture oxygen lance pipe designs and sizes according to the need of the customer, which helps in a better way to inject oxygen used for Electric Furnace and Trash burning furnaces (Incinerators).
Introduction: 2-1/2″ O.D. Lance Pipes for Larger Incinerators and EAFs
Source: Daiwa Lance International
Incinerator- Trash Burning Furnace
An incinerator, also identified as a trash-burning furnace, is a furnace used to burn rubbish. In modern incinerators, equipment to reduce pollutants, including flue gas cleaning is included. An oxygenized single combustion chamber is used to burn down the waste. Extremely high temperatures cause materials to burn. Wastes are combusted at those temperatures, producing only gases and ash as a by-product.
Photo of one part of the Incinerator
Requirement of Oxygen for Trash Burning Furnace and Electric Arc Furnace
1. For Trash Burning Furnaces: Fuel and oxygen go through a speedy, exothermic reaction known as combustion (O2). Even though fossil fuels may also be used in combination with trash as fuel in incineration applications, the air is the most important oxygen source. Incineration temperature, gas mixture turbulence, and gas-residence time must all be considered for a furnace to be designed and operated in the best possible way. Enough fuel and oxygen must be supplied, and every component of the gas stream must attain a suitable high temperature for a sufficient amount of time.
2. For Electric Arc Furnace: Intense heat is generated for cutting the scrap when oxygen combines with the hot scrap and burns the iron. After the steel has begun to melt, oxygen can be injected right into the steel bath. In Electric Arc Furnaces, the usual oxygen consumption rises every year. The average specific consumption is rising in line with the present trend. Steelmakers are encountering that by utilizing more oxygen in their operations, they can still boost output and make money. As a consequence, techniques for infusing chemical energy into the EAF have recently improved.
The requirement for better consumption of oxygen used for that furnace is increasing which leads to the increase in demand for larger oxygen lance pipe to inject more oxygen and enhance the performance process.
Oxygen Lance Pipes for Trash Burning Furnaces and Electric Arc Furnaces
Calorized Lance is the unique oxygen lance pipe, used for carbon and oxygen injection for steel making process mainly with electric arc furnace but also use at the blast furnace. Customers can use this oxygen lance pipe with different applications as below:
- Cutting steel scrap, refining steel, and melting at an electric arc furnace.
- Injection of carbon, lime powder, and/or other additives for modifying grades of carbon steel or special steel.
- Removing slag within the oxygen converter.
- Other uses of this oxygen lance pipe can provide strong resistance against heat, sulphuration, oxidation, vanadium attack, etc.
Our plant can produce 2-1/2″ O.D. lance pipes to supply the appropriate size lance pipe for a planned trash-burning furnace according to the model of the facility.
It has vast experience in manufacturing oxygen lance pipes which enables us to supply not only small lance pipes but also lance pipes up to 2-1/2″ O.D. to meet the requirements of customers for blowing oxygen and other substances.
It can design 2-1/2″ O.D. lance pipes based on the model descriptions of trash-burning furnaces and electric arc furnaces to ensure fit and work ability.
Conclusion
Larger diameter oxygen lances are essential because of the trend toward larger electric furnaces and incinerators so that more oxygen can be blown into the furnace in the course of the shorter heating operation time.
If you wish to know more regarding the larger O.D. of oxygen lance pipes used, please feel free to contact us at sales@daiwaanayasteel.com.
Daiwa Anaya Steel Private Limited is a part of Anaya Steel, LLC (US parent company). Our company has over 30 years of involvement in steel products. It mostly deals in:
- Specialized steel hardware – punched, pressed, galvanized, powder coated.
- Steel pipes and tubing – specialized, color coated, galvanized and structural.
- Our lance pipes are manufactured by Daiwa Lance International (DLI) in Vietnam.
