Best price DZL 1 ton to 20 ton packaged automatic coal fired chain
grate stoker steam boiler
Introduction
This steam boiler adopt chain grate,suitable for molding pellet
fuel,can add a small amount of wood,wood block,also can burn with
coal.
This boiler adopt the newest achievements in scientific research,
such as:Arched Tube plate, thread smoke tube etc, solve the tube
plate crack of shell type boiler, Water wall tube burst, low
efficiency, insufficient of power,Poor pf coal type adaptability
etc.
Technical Parameters
| Model | Rated evaporation capacity
(t/h)
| Working pressure (Mpa) | Rated steam temperature
(°C)
| Feed water temperature
(°C)
| Boiler body heating area
(m2)
| water
pressure
testing pressure
(M pa )
| Effective area
of grate
(m2)
| Thermal efficiency
(%)
|
| DZL0.5-0.7-T | 0.5 | 0.7 | 170.4 | 20 | 17.5 | 1.05 | 1.1 | 82 |
| DZL1.0-0.7-T | 1 | 0.7 | 170.4 | 20 | 28.6 | 1.05 | 2.14 | 82 |
| DZL1-1.0-T | 1 | 1 | 184 | 20 | 28.6 | 1.4 | 2.14 | 82 |
| DZL1-1.25-T | 1 | 1.25 | 193.3 | 20 | 28.6 | 1.65 | 2.14 | 82 |
| DZL2-0.7-T | 2 | 0.7 | 170.4 | 20 | 55.1 | 1.05 | 2.64 | 82 |
| DZL2-1.0-T | 2 | 1 | 184 | 20 | 55.1 | 1.4 | 3.41 | 82 |
| DZL2-1.25-T | 2 | 1.25 | 193.3 | 20 | 55.1 | 1.65 | 3.41 | 82 |
| DZL4-1.25-T | 4 | 1.25 | 193.3 | 20 | 91.5 | 1.65 | 6.12 | 82 |
| DZL4-1.6-T | 4 | 1.6 | 204.3 | 20 | 91.5 | 2 | 6.12 | 82 |
| DZL4-2.5-T | 4 | 2.5 | 226 | 20 | 91.5 | 3.125 | 6.12 | 82 |
| DZL6-1.25-T | 6 | 1.25 | 193.3 | 20 | 146 | 1.65 | 6.73 | 82 |
| DZL6-1.6-T | 6 | 1.6 | 204.3 | 20 | 146 | 2 | 6.73 | 82 |
| DZL10-1.25-T | 10 | 1.25 | 193.3 | 104 | 288.2 | 1.65 | 12.4 | 82 |
| DZL15-1.25-T | 15 | 1.25 | 193.3 | 104 | 432.3 | 1.65 | 16.2 | 82 |
| DZL20-1.25-T | 20 | 1.25 | 193.3 | 104 | 576.4 | 1.65 | 24 | 82 |
Performance characteristics
1. Designed with horizontal, three passes, all-wet back structure.
2. Fire tubes are surrounded by water, and these design making
efficient up to 80%
3.Threaded tube: Strengthen the heat transfer, increase the boiler
heat efficiency
4. Big combustion room design: increase furnace heating area,
decrease boiler size, and reduce the emission of the Nox Corrugated
hearth make the boiler safer.
5.Adopting water seal eliminate slag, slag through grate drop into
slag notch.
Advantage
1.Three pass structure.
Function: ectend the flow of smoke and enhance the heat transfer.
2. Water-fire tube type.
Function:Fire tube:the flue goes through furnace, wing-shape flue
and fire tubes to form three pass as said in the above.Water tube:
water in some tubes rises after heating and some declines, which
forms a natural circulation.
3.Spirally corrugated tube
Function:heat transfer enhancement, reduce the spirally corrugated
tube numbers, and improve the suppleness to avoid the tube plate
cracking.
4.Arched tube plate
Function:reduce the thermal stress of weld and improve the tube
plate suppleness,meantime, simplify the structure and save the
boiler room space.
Applicable fuels
This is Applied for Textile Mill,Food and
Beverage,Chemical,Medicine,Light Industry,Rubber,Printing and
Dyeing Plant,Paper Mill,Wood Processing,Garment and Laundry etc.
FAQ
1.What are the spare parts for DZL/SZL series coal/biomass fired
boiler?
Generally, the spare parts are instrumentation valve, grate plate,
gasket, etc.
2.What are the differences between vertical type boiler and
horizontal type boiler with the same capacity?
1.Structure of vertical boiler is compact, occupy a limited area,
2.Convenient on installation and removal.
3.Low cost and investment on capital construction. Steam exhausted
fast and sufficient.
1.The combustion space of horizontal is big, fuel can be burned
completed.
2.The thermal efficiency is higher than the vertical boiler,
3.Horizontal type: less thermal loss, stronger output, and higher
steam quality.
3.What are the limitation (size, humidity, chemical element
concentrations) of coal fuel/solid fuel/wood fuel?
Size requirement of coal:6-25mm
Size requirement of blending coal: <50mm (the coal less than 6mm
should less than 30%)
Diameter of biomass particle: 6~10mm, length: 25~50mm, water
content < 15%, ash content < 2%, sulphur content<0.07%,
chlorinity <0.07%, nitrogen content < 0.5%
4.What is the size of furnace door and blower hopper?
Size of furnace door:
Standard elliptical furnace door:300*800*1500
Blower hopper size:
2 tons conical hopper: 1400*800*1500
4 tons conical hopper: 2200*1400*1500
