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. Introduction:
chain grate boiler alstrom 21 ton 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 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.
Easy operation and maintenance
Fully automatically operating, with automatically adjustment and protection of burning, water level, temperature and steam pressure.
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.
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.
A company of Zambia purchased one set of 2 ton chain grate boiler from our company in 2010. It was a single-drum, water-fire tube, horizontal layout, packaged chain grate steam boiler, burning class II bituminous coal. The boiler has the advantages of convenient installation, short installation period and less basic construction investment.
70 ton SZL coal fired traveling grate water tube boiler in India 2018-02-27. Advantages of 70 ton SZL coal fired boiler 1.Advanced three pass wet back design:adopts the most sophisticated three returns all wet back structure,thread smoke tube structure, weld joint with high quality. 2.Advanced manufacturing equipment endows Safe and reliable property:adopts corrugated furnace lamps, multi ...
The fuel of the chain grate boiler is very wide, including coal, bituminous coal, anthracite coal, rice husk, wood pellet, biomass co-firing, bagasse and so on. About 20 ton chain grate industrial boiler, We mainly recommend SZL chain grate boiler and DHL corner tube chain grate boiler to our customers.
chain grate boiler alstrom 21 ton – Fire Tube Boiler CompanyPast: Lead Mechanical Engineer at Alstom Power, Mechanical Design Engineer . Coal-fired Boilers This series doubledrum boiler is horizontal moving chain grate boiler. 20 ton/h gas fired steam boilers have similar structure with with CFB boiler's.
Two sets of 25 tons chain grate steam boiler project was signed in 2016. The customer enterprise is a chemical plant and 50 tons steam boiler will be applied to the production steam of chemical products. After the installed by our engineers, two sets of industrial steam boilers were put into operation in 2017.
This system is designed by Hurst Boiler to combine the best technologies from the “old school” of coal combustion and the latest advanced combustion control technologies. The new HBC chain grate-type stoker system permits either bituminous coal washed sin