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
Wns gas & oil fired hot water boilers are three pass wet pack, horizontal, smoke tube type( fire tube) fusion welded. Hot water boilers gas & oil fired are made to iso / ibr / asme code. These are available in capacity of 0.7mw. To 14mw. Components are engineered for maximum safety, highest efficiency, dependability and quit operation. Wet back models eliminate rear end refractory and its inherent maintenance cost, reduces stress of rear tube sheet and ligament cracking, radiant heat is eliminated, lengthening tube life and reducing heat loss from rear turn around.
Wns gas & oil fired hot water boiler feature:
1. Fully wet - back design effectively absorbs radiant heat into the water, keeping tube ends and rear of coiler cooler than in dry back design.
2. Three passes extract maximum useable heat from the fuel.
3. Large , water - surrounded furnace tube assures complete combustion and heat absorption without flame impingement.
Wns gas & oil fire tube boiler application
Boiler suitable for bakery, pharmaceuticals &bulk drugs, beverages, dairy, fetilizers, processed food industry, textile industry, hospitals, hotels, investment precision casting industry, laundry, paints & varnishing industry, mineral water plant, yarns, etc
TypeRated evaporation
(mw)Rated steam pressure(mpa)Nominal steam temperature(c)Feed temperature(c)Heating area(m2)Water volume
(m2)
Wns0.7-1.0-y(q)0.71.09570293.1
Wns1.4-1.0-y(q)1.41.0957055.73.93
Wns2.1-1.0-y(q)2.11.0957078.844.8
Wns2.8-1.0-y(q)2.81.09570986.8
Wns4.2-1.25-y(q)4.21.259570141.79
Wns5.6-1.25-y(q)5.61.259570189.711.9
Wns7-1.25-y(q)71.25957024812.4
Note: here are some of specifications for your reference, and you can consult us for more details.
We offer topnotch biomass boilers(steam and hot water boiler) at very nominal price ranges. We not just manufacture and supply biomass fired boilers, but also offer boiler services such as erection services, industrial boilers. These are used for generating steam and this steam is used for various engineering purposes.
SZL biomass fired steam / hot water boiler application
Biomass fired steam Boiler and hot water boiler are suitable For Bakery, Pharmaceuticals &Bulk Drugs, Beverages, Dairy, Fetilizers, Processed Food Industry, Textile Industry, Hospitals, Hotels, Investment Precision Casting Industry, Laundry, Paints & Varnishing Industry, Mineral Water Plant, Yarns, etc
Zg have over 60 years' experiennce of boiler and pressure vessel, as industrial boiler manufacturer and supplier in china, we supply szs gas fired water tube steam boiler with capacity 10-35 ton, widely used in food plant, textile industrial, hospatial, etc.
High efficiency and energy-saving water tube boiler
Water tube gas & oil fired boiler selects world-leading imported automatic combustors, and realizes high efficiency and automatic combustion.
Automatic combustion micro positive pressure operation enables high combustion efficiency, lower electricity consumption and operation cost.
Membrane wall structure is applied to maintain low temperature within the boiler and minimize heat radiation loss. Besides, the boiler is featured by good sealing and high thermal efficiency.
At the back-end, there is an energy device which can lower exhaust temperature and improve boiler's thermal efficiency.
Safety and reliability gas & oil fired steam boiler
Szs gas & oil fired steam boiler applies natural circulation while hot water boiler applies forced circulation in order to ensure the safety and reliability of water circulation.
Membrane wall structure is applied to ensure safety, high efficiency and high sealing.
Explosion door applies micro positive pressure large diameter spring type to ensure high sealing and the safe operation of the boiler.
The boiler is equipped with high and advanced control technique as well as excellent components in order to ensure the safety and reliability of boiler operation.
