What is Blast Furnace Gas
Blast furnace gas is a by-product of blast furnaces that is generated when the iron ore is reduced with coke to metallic iron. It has a very low heating value, about 93 BTU/cubic foot, because it consists of about 60 percent nitrogen and 18-20% carbon dioxide, which are not flammable. The rest is mostly carbon monoxide, which has a fairly low heating value already and some (2-4%) hydrogen. It is commonly used as a fuel within the steel works, but it can be used in boilers and power plants equipped to burn it. It may be combined with natural gas or coke oven gas before combustion or a flame support with richer gas or oil is provided to sustain combustion. Particulate matter is removed so that it can be burned more cleanly.
Blast furnace gas is generally used to as the raw materials of steam - gas-fired combined cycle power generation. Blast furnace gas fired boiler designed and manufactured in ZG Boiler is suitable for iron, steel, and it is also the best choice of the nation to sustainable development and green economy.
Blast Furnace Gas Fired Boiler Structure
1. Using "� " Type Arrangement
With whole structure "� " type arrangement, the blast furnace or coke oven gas fired boiler adopts front suspending back supporting, plumbing systems, superheater and other suspended from the roof on the boiler, economizer, air preheater, etc. are arranged at the rear steel shelves, air preheater can be pulled out from the back, which are easy to maintain.
2. Square Chamber Design
The furnace is design as square, and the burner is arranged in the corners, using the four corners of the vortex burner ignition, also has a higher temperature of the hot air, combustion gas required to ensure that the temperature field and the aerodynamic conditions not only to ensure adequate fuel gas combustion, but also to prevent the fuel gas and air mixture within the burner.
3. Multiple Security Devices
In addition to conventional protection device, the boiler is also equipped with automatic ignition device, flame monitoring device, flame protection device and supply device which automatically cut off the gas when the gas pressure is lower than a certain value and other safety devices
The most powerful commercial condensing boiler in the world, the E-Compact Twist is available in a wide range of outputs of 25kW up to 150kW, and is ideal for business owners who are looking to run a more energy-efficient business. The only condensing pellet boiler in the world with a single heat exchanger, the E-Compact Twist condensing boiler can achieve efficiencies of up to 103%.
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Horizontal Gas/Oil fired industrial steam boiler features: •Adopt numerical control, include Automatic Mode, Manual Mode, Timing Mode, Error Recording, password protection,etc. •Be provided with automatic blow down system (Independent patent technology) •Automatic Scale alarm(Independent patent technology), overpressure protection devices ensure the safety of the boiler •Easy maintenance, front door of smoke box adopt articulated joint which is convenient to be open, the cleaning of close-by flue tubes become easy too. •Safe and reliable, before leave the factory, all the boiler have to pass series of strict tests to ensure the safety and reliability of combustion and auto control devices Parameter: Type Mode Rated evaporation (t/h) Rated pressure (Mpa) Rated evaporation temperature (°C) Diesel consumption (Kg/H) Natural gas consumption (Nm3/h) Weight (T) horizontal central reverse flame WNS0.5-0.8-YQ 0.5 0.8 175 34.4 41.1 3.735 WNS0.7-0.8-YQ 0.7 48.2 57.5 5.502 WNS1.0-1.0-YQ 1.0 68.8 82.1 5.68 WNS2.0-1.0-YQ 2.0 1.0 184 137 164.3 8.255 WNS1.5-1.0-YQ 1.5 103 123.15 9.885 WNS2-1.0-YQ 2.0 137 164.3 11.14 horizontal three Pass WNS1.5-1.25-YQ 1.5 103 123.15 9.689 WNS2.0-1.25-YQ 2.0 137 164.3 11.6 WNS2.5-1.25-YQ 2.5 1.25 194 172 205.5 15.0 WNS3.0-1.25-YQ 3.0 206 246.3 17.12. Standard pickings( well wrapped in plastic clothes packing with wooden case).
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Heating energy sources: natural gas, liquefied petroleum gas (LPG). An imported famous-brand automatic burner or gas burner is adopted, ensuring high heating performance, low noise and zero-discharge of fume, meeting the environmental protection requirements. After heating, the hot furnace gas is blown back to the upper mouth of the crucible through the flue; or preheated the combustion air from the flue heater ex-changer to improve the heating efficiency and reduce fuel consumption. Multiple safety protection modes are adopted, such as gas under-pressure, assisted gas under-pressure, flameout alarm and so on. Melting rate in a cold furnace: 3.5h Melting rate in a heated furnace: 2h
Coke Less Blast Furnace
0.5 ton -10 ton Oil Gas Fired steam boiler 1.Fuel:heavy oil,diesel,natural gas,lpg, 2.Capacity: 500g,1 ton,2 ton 3 ton,4 ton,5 ton,6 ton ,8 ton,10 ton steam boiler 3.Fire tube structure 3 pass 4.Horziontal type industrial steam boiler 5.Plc touching screen intelligent control system 6.Boiler full automatic operation Boiler mian part 1 set Burner 1 set Electric control cabinet 1 set Valve & Gauge used on boiler main part 1 set Water pump 2 sets Smoke chimney 1 set Water treatment equipment 1 set Economizer 1 set Steam Header 1 set Piping&fittings 1 set
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