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.
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.
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.
Wood fuels can basically be combusted using a stoker, grate combustion, or fluidised bed combustion. Stoker burners are more common in farmhouses and are suitable for the small scale burning of mainly wood chips. Grate combustion is used in small and medium sized heat plants, whilst fluidised beds are used in larger scale plants.
The combustion of biomass blends on the grate had three zones. The first zone was the heating zone. In this zone, biomass blends received radiation heat from high-temperature gas and the boiler front arch after they were carried into the furnace through the inlet.
Travelling Grate Boilers A highly efficient and reliable offering for the combustion of a wide range of biomass/fossil fuels.
Reciprocating Grate Boilers The most proven and reliable combustion system for burning a wide range of Biomass fuels. Features of our Reciprocating Grate Wide fuel flexibility.
Boiler Grates Mini Travelling Grate (MTG) is an efficient stoker for fuel combustion in furnaces of small boilers.
The objective is to provide a surface to combust the larger fuel particles and to remove the ash and inorganic materials after combustion. Currently the most common stokers are the traveling grate
The grate assembly (the most characteristic element in grate-fired boilers), the key combustion mechanism in the fuel bed on the grate, and the advanced secondary air supply (a real breakthrough in
COMBUSTION AND FUELS. Types of boiler furnaces. Coal-fired boilers can be classified regarding the type of a furnace: grate boilers (stoker), pulverized fuel-fired boilers (PF), fluidized-bed boilers . COMBUSTION AND FUELS. TRAVELLING GRATE FURNACES. COMBUSTION AND FUELS. Cross-section of grate boiler.
The grate is divided into feeding section with pusher, combustion grate, and burn-out grate. Our grate has four sections, two of which form the combustion grate at an angle of 15º while two sections form the burn-out grate at an angle of 7.5º.
Sep 19, 2018· Published on Sep 19, 2018 Rushas's Mini Travelling Grate (MTG)- MTG is an efficient stoker for fuel combustion in furnaces of small boilers. For more details please visit- …
The grate, which forms a "floor" in the furnace, is an AET BioGrate travelling grate. The continuously-moving grate carpet slowly transports the burning fuel layer towards the boiler front where the ash falls into the ash pit. The grate speed can be adjusted to account for variations in fuel quality and ash content.
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