Large SZL 2 to 25 MT Coal Fired Chain Grate Stoker Steam Boiler Price

SZL series boiler host design as double boiler drum longitudinal layout, set steam water separating device in upper boiler drum, set periodic blow-off device in lower boiler drum, there are water cooling wall tubes at left and right side of furnace. Use light chain grate add coal fuels automatically, the back of furnace is re-burning chamber, convection tubes, the tail of furnace is economizer or air preheater, equip with blower, draft fan for mechanical ventilation, and also equip with slag extractor for slagging automatically. Fuel fall down to chain grate and enter furnace for burning, the flue gas go through furnace, re-burning chamber, convection tubes, economizer or air preheater into tail flue, enter deduster, draft fan and chimney, and finally discharge into atmosphere.

1. Advanced Arch Design
1.1 Furnace arch adopt advanced design, forming obvious inverse "α" flue gas flow, which makes the boiler strong adaptability of different fuels.
1.2 The front and back arches are "wet arch" structure, keep a constant temperature and protect the arch.

2. Membrane Water Wall
2.1  Adopt water cooling combustion chamber, increase the radiant heating area, improve the output and thermal efficiency.
2.2 The boiler body use membrane water wall structure, good sealing, low heat lose.

3. Excellent Chain Grate
3.1 The grate is 500~1000 mm longer than others, the fuel combustion time is longer, improve the combustion efficiency.
3.2 The small scale flake grate could resist the temperature as high as 1200℃, long working life.
3.3 The chain grate are low coal leakage because of the small gap.
3.4  High automatic degree, decrease labor cost.
3.5 Convenient for maintenance, it could be done without boiler shut down.

4.Anti Coking Measures
4.1 The left and right headers are designed as anti-coking headers.
4.2 Adopt unique double secondary air design, improve the ignition condition of coal fuels, sufficient air supply to make sure the high combustion efficiency, and avoid fuel coking.

5. Sufficient Output
Equip with double drums, membrane water wall, and large diameter furnace, the radiant heating area increase more than 50%, achieve sufficient output.

6. Low Thermal Inertia Insulating Layer
Boiler shell use light aluminum silicate board for heat preservation, low thermal inertia, and low heat loss. The temperature of furnace rise up quickly.

7. Both Sides Air Inlets
Boiler adopt bilateral air inlets and independent wind chambers, could adjust wind volume and pressure flexible, to ensure the sufficient combustion.

Apply for various type of coal fuels.

Automatic feeding fuels, suitable for kinds of coal fuels, save labor and full combustion, save fuels.

reduce the stress of welding

high transfer efficiency

users could designate the brand of electric elements

high temperature refractory bricks, no air leakage

insulation layer use Aluminum silicate board, low heat loss

made of ND corrosion resistant steel, save fuel, improve thermal efficiency.