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how much heating surface of 4ton coal fire boiler new disin china

Product Thermal Capacity: 1 - 20 t/h

Working Pressure: 0.7 - 2 Mpa

Available Fuel: Nature gas, coke oven gas, biogas, methanol, liquid propane gas, diesel, heavy oil, light oil, crude oil, etc.

Available Industries: Heat supplying, chemical, food, textile, printing and dyeing, cigarettes and tobacco, fodder, pharmacy, building materials, brewery, rubber, hospital etc.

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Introduction of WNS gas / oil fired steam boiler:

WNS series horizontal internal combustion boiler is a boiler shell type 3 passes wetback oil/gas fired boiler. After fuel is being atomized by burner, flame is full of the wave furnace and transfer heat via furnace wall, this is 1st pass; the high temperature smoke is collected in reversal chamber and then enters 2nd pass which is grooved tubes bundle area; after heat convection, air temperature gradually falls and goes to front smoke box and turn to 3rd pass, which is smooth tubes bundle area, and then enters chimney passing back smoke box and exhausted to the atmosphere.

Technical advantages:

1. Digitized manufacture
The key part such as material cutting, rolling, drilling are proceeded by advanced CNC machining process to reduce the assemble stress and extend boiler working lifetime.
The front and back smoke chamber plates are cut by CNC plasma cutting machine and looks tidy and beautiful.

2.Easy operation and maintenance
Fully automatically operating, with automatically adjustment and protection of burning, water level, temperature and steam pressure.

3. Longer working life
Smoke tube and tube sheet connection is expanded first to eliminate the gap between them, then adopt automatic argon arc welding to relief the stress and expand boilers working life.
Longitudinal and girth joint adopt advanced automatic submerged-arc welding for good welding quality. All longitudinal and girth joint will have 100% radiographic inspection.
Fin tube us ND steel or stainless-steel material which avoid low temperature corrosion.
Inspection procedure point is set up to guarantee the sequence of expanding and welding, avoid cracking of the tube sheet holes.

4. Less fuel consumption
High quality aluminum silicate fiber is used with fire clay insulation, to control the boiler body temperature below 45℃ to control heat lost.
Sufficient steam storage room and heating area makes boiler to generate high quality steam and high thermal power.
Condenser is added to reuse the waste heat of the exhausted smoke to increase feeding water’s temperature and reduce emission temperature, which can increase the thermal efficiency above 98% and save operating cost.

coal fired boiler for home, coal fired boiler for ho

Alibaba.com offers 2,751 coal fired boiler for home products. About 65% of these are Boilers, 1% are Boiler Parts, and 1% are Heating Equipment. A wide variety of coal fired boiler for home options are available to you, such as pressure, usage, and type.

China's coal fires belch fumes, worsening global warmi

Nov 17, 2008· China has the worst underground coal fires of any country on Earth. The fires destroy as much as 20 million tons of coal annually, nearly the equivalent of Germany's entire annual production.

Coal Fire Boiler For Sale Suppliers, Manufactur

Alibaba offers 132 Coal Fire Boiler For Sale Suppliers, and Coal Fire Boiler For Sale Manufacturers, Distributors, Factories, Companies. There are 78 OEM, 78 ODM, 34 Self Patent. Find high quality Coal Fire Boiler For Sale Suppliers on Alibaba.

Boiler (power generation) - Wikiped

File Size: 881KB A voluminous coal fire was lit on a grate beneath the slightly dished pan which gave a very small heating surface; there was therefore a great deal of heat wasted up the chimney. In later models, notably by John Smeaton , heating surface was considerably increased by making the gases heat the boiler sides, passing through a flue .

The world’s longest burning fires: China's unseen sto

Coal fires can self-ignite, but mining operations, which expose underground coal to oxygen and produce coal dust, create a much greater risk and are responsible for an estimated 75% of coal fires. “Every country that is coal-producing has coal fires,” says Anupma Prakash, a geologist at the University of Alaska who has conducted extensive

Outdoor Coal Burning Boiler Pric

Nature's Comfort NCB-250 COAL Boiler 6,000 sq. ft. Nature's Comfort NCB-275G COAL Boiler 8,000 sq. ft. Nature's Comfort NCB-325G COAL Boiler 10,000 sq. ft. Nature's Comfort Wood Furnace NCB-400G Gasification Boiler. 12,000 sq. ft. _____ You must notify us, if you plan on using "NUT COAL", rice coal or pea coal, or any other type that is very small.

Coal Fired Boilers,Coal Fired Steam Boilers, Thermal O

Romiter Group Provide Coal Fired Boilers, Coal Fired Steam Boiler, Coal Fired Hot Oil Boiler, Coal Fired Thermal Oil Heater, Coal Fired Hot Air Furnace Fired Thermal Oil Heater, Coal Fired Hot Air Furnace. Best coal and wood fired steam boiler from China Whatsapp: 0086-18637275223 Moving Grate or Chain Grate to fire coal. It have

Conversion of Existing Coal-Fired Boilers to Natural G

boiler/burner technology and furnace he at input/plan area ratio. Boiler natural gas feasibility studies are required to determine the effects of burning natural gas in a coal -fired boiler. Coal and ash handling equipment are not required if firing natural gas; in most cases, these will be

How to compare Natural Gas Boiler and Coal Boilers

How to compare Natural Gas Boiler and Coal Boilers? Date: 04-05-2017 Author: ailsa from ZG boiler There are not many commercial or industrial coal fired boilers left, but where they exist the load is substantial and the equivalent gas energy usage is measured in the millions of MCF per year.

Coal fired hot water boiler - Steam Boiler|Hot Wat

Coal fired hot water boiler. Send an E-mail to us! ( Click this button to inquiry ) PRODUCTS. Our coal fired boiler adopt double drum water tube structure, evaporation capacity is bigger than normal design boiler. Heating area of boiler body. m2. 17.2. 22.59. 33.39. 69.4. 115.3. 157.6. 137.6. 196.9. Heating area of economizer.

Coal fired boiler - YouTu

Sep 26, 2008· First time with hard coal. Dangerous Idiots Tree Felling Fails With Chainsaw ! Tree Falling on Houses and Head - Duration: 9:42. WOOD THINGS!

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