10 Ton High Efficiency Industrial Horizontal Coal Fired Steam
Boiler for Textile Industry
Model: 1tons to 15tons/hr steam capacity
Working pressure: 0.7Mpa/1.0Mpa/1.25Mpa working pressure
Degree of automation: 90%, automatic coal feeding/ water feeding/
cinder moving/ over pressure protection.
Introduction
Automatic Moving Grate Coal Fired Steam Boiler DZL-Series boiler is
horizontal single-drum shell boiler with water-fire tubes. It has
chain grate as burning device, upper-in-and-upper-out style natural
water circulation with ejection for hot water boiler of this
series, the right and left side of furnace as radiant heating
surface, two wings of furnace and threaded smoke tubes as
convection heating surface and three-dimensional shield shell.
Furnace is divided by Smoke baffle wall into combustion chamber
(firebox) at front and reburning chamber at back.
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.Maturity
One of the earlist manufacturers of fast-assemly thread pip chain
grate boiler in China, In the past 10 years, the products have been
replaced many times, more mature, similar products have produced
more than 6000 units
2.Advance technolody
Adopt many advanced technology: threaded pipe, airfoil flue ,
Convex tube plate, the backwater towards high temperature tube
plate, simple loop circuit, dust separated chamber, big furnace,
compact structure so on.
3. Stable operation
The steam boiler has stable operation, low failure rate and never
have safty accident.
Boiler can work 20 years.
4.Reliability
The only boiler factory have 20 0000fatigue test to boiler in China
5.Economy
High efficiency, energy saving, good economy.
6. High level Aumotic control system
The boiler automaticon lelvel is high, the boiler feedwater
automatic regulation, high-low water level alarm, low water level
interlock protection, fan interlock protection, automatic feeding
fuel, automatic water feeding, automatic ash remove function.
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
