• SZL Coal-fired Assembly Steam Chain Grate Boiler System 1
  • SZL Coal-fired Assembly Steam Chain Grate Boiler System 2
  • SZL Coal-fired Assembly Steam Chain Grate Boiler System 3
  • SZL Coal-fired Assembly Steam Chain Grate Boiler System 4
  • SZL Coal-fired Assembly Steam Chain Grate Boiler System 5
SZL Coal-fired Assembly Steam Chain Grate Boiler

SZL Coal-fired Assembly Steam Chain Grate Boiler

Supplier:
Nantong Wanda Power Co., LTD.
Ref Price:
get latest price
Loading Port:
China main port
Payment Terms:
TT OR LC
Min Order Qty:
1 set
Supply Capability:
20 set/month

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Rated capacity: 1~15t/h

Rated work pressure: 1.25~2.45Mpa

Adaptive fuelⅡ.Ⅲ Bituminous coal

Application industry : industrial and mining enterprises, schools, hospitals, etc.

Main technical parameters of Double-drum Longitudinal-arranged Boiler(SZL Boiler)

Boiler Type

Rated Capacity

(t/h)

Rated Work Pressure

(MPa)

Rated Steam Pressure

(℃)

Feed Water Temperature

(℃)

Thermal Efficiency   (%)

Max.Transport Weight

(t)

Max. Transportation   Size

L×W×H(m)

SZL6-1.25-AII

6

1.25

193

60

≥80.7

23

10.86×4.77×6.00

SZL6-1.57-AII

6

1.57

204

60

≥80.5

25

10.86×4.77×6.00

SZL6-2.45-AII

6

2.45

225

60

≥80.5

27

10.86×4.77×6.00

SZL8-1.25-AII

8

1.25

193

60

≥80.1

25

11.43×4.77×6.13

SZL8-1.6-AII

8

1.6

204

60

≥80

27

11.43×4.77×6.13

SZL10-1.25-AII

10

1.25

193

60

≥79

27

12.21×4.77×6.13

SZL10-1.6-AII

10

1.6

204

60

≥79

29

12.21×4.77×6.13

SZL10-2.45-AII

10

2.45

225

60

≥80

31

12.45×4.77×6.28

SZL15-1.25-AII

15

1.25

193

60

≥80

30

14.31×4.77×6.28

SZL15-1.6-AII

15

1.6

204

60

≥80

33

14.31×4.77×6.28

 

1.    Structure introduction :

The boiler is a double-drum longitudinal natural circulation assembled water-tube boiler. The body is divided into two parts, the assembly body and the assembly grate. The combustion equipment adopts light chain grate, with stepless speed transmission device. The front, rear and two sides of the water-cooled wall are arranged in the furnace, and the water-cooled wall on both sides adopts dense tube bundles. The furnace is arranged with high and short front arch and low and long back arch, covering about 70 % of the length of the grate. The convection section uses a partition wall to fold the flue gas into three return journeys, and two ash removal holes are arranged. Cast iron economizer and heat pipe air preheater are arranged at the tail. The blower blows the cold air into the air preheater for preheating and then enters the inlet ducts on both sides of the boiler. It rises to the furnace through six independent grate air chambers. Each inlet duct is equipped with an adjustment door to make the air distribution adjustment on the grate simple.

The coal hopper is arranged in front of the combustion equipment, and the coal gate adopts a water-cooled cast steel serrated shape, which effectively increases the surface area of the coal seam and is conducive to the full combustion of coal.

The fuel enters the furnace combustion through the coal hopper device, and the high-temperature flue gas absorbed by the water-cooled wall of the furnace enters the cooling chamber. The flue gas is discharged into the cast iron economizer after heat exchange in the convection section, and then enters the heat pipe air preheater, and then passes through the dust collector. Finally, it is pumped by the induced draft fan from the chimney to the atmosphere.

2.Product features :

a. The heating surface of the assembled boiler body is arranged abundantly, the pressure rise is fast, the output is sufficient, the overload capacity is strong, the insulation layer is elegant, the heat loss is small, and the water-cooled wall is high aluminum light refractory brick, aluminum silicate fiber felt and rock wool, while the general manufacturers use concrete and perlite.

b. Grate adopts reinforced active grate, this kind of grate is specially designed for assembling boiler in our factory, pitch is 90 mm, width is 64 mm, the destructive test proves that the tensile strength of reinforced active grate is twice that of ordinary active grate, so as to ensure the safe and reliable operation of the grate.

c. The two sides of the main combustion zone of the grate are sealed by high aluminum heat-resistant ductile iron, while the general manufacturers are gray cast iron or ordinary hot cast iron.

d. Grate ventilation adopts independent sealed air chamber into the air on both sides, adjustable air device for grid adjustable air door, it is driven by umbrella gear rack and moving grid to adjust the wind, the grid all through the gold processing, so not only the operation is flexible and convenient, and through the cold state ribbon test, the uniformity of the adjustable air device in the width direction of the grate is very good, can well adapt to the needs of combustion, and the general manufacturers are used in the grate plate side plate open two holes butterfly adjustable air plate.

e. The ash falling device of the grate also adopts a push-pull grid ash falling device.

f. The bearing of the main shaft and the driven shaft of the grate adopts the double row short cylindrical adjustable bearing, while the general manufacturers use cast iron sleeve or copper sleeve.

g. The water-cooled serrated coal gate is adopted in the coal gate, which can not only loosen the coal seam but also increase the surface area of coal seam combustion, and correspondingly increase the coal-fired area of the grate. The practice in recent years has proved that the use of this kind of coal gate can make the coal fully burn. The use of different coal gates in the same boiler can obviously advance the burnout zone of coal by 500 ~ 1000mm, and the carbon content of slag is greatly reduced.

In summary, the assembled boiler of our company has unique characteristics. In 1989, the assembled boiler won the third prize of major scientific and technological achievements of Jiangsu Provincial Department of Machinery Industry. In 1997, the assembled boiler series won the first grade title of the Ministry of Machinery.


Q:I've re-pressured my heating boiler, but it's gone right up to 2.5 bar, too high! So how can I get it back down to 1.5 or thereabouts? Many thanks.
Sounds like you have a steam boiler, I suggest you post the make and model of the boiler and control so you can get an accurate answer.These controls run on a differential,and cycle the burner on a call for heat from your thermostat.How many floors you have is also a factor.
Q:What are the safety hazards of the boiler?
3, the general boiler room dust is more serious, should pay attention to the harm of the human respiratory system.
Q:Boiler exhaust gas temperature is not the lower the better
In the case of the same fuel consumption, the lower the backwater of the heating system, the more heat recovered by the condensing waste heat recovery unit, the higher the thermal efficiency of the boiler.
Q:I live in a 3bed semi. The boiler is ok but I would like to buy an 'A' rated new type. I do not know where to start, suffice to say that when I went on British gas site they did not give any prices!! I always like value for money....thanks in advance, Lindsey
If your boiler is OK why are you replacing it? It would be greener to carry on using it rather than spend a lot of money on having a boiler installed and throw a perfectly good one away. If it is over 20 years old then that is a different matter. Try local recommended heating engineers for prices, they tend to have their own 'favourites' and could also offer several different options. British Gas is the most expensive place to go.
Q:i have an old fireplace with back boiler, and i want to upgrade it and take the back boiler out. I've been told the boiler from the bathroom will need moving (i dont know why) to adifferent location within the house. How much will it cost to upgrade the fireplace and to buy and install a new boiler?
You require the services of a plumber. As the back boiler has water in it , it has to be disconnected from the source ( the copper cylinder in the bathroom ) After disconnection it is normally drained by drilling a hole in it ( one bucketfull ) When it has all been removed, you end up with a rectangular opening ( the builders opening ) These openings can be quite attractive if a freestanding fire is installed in lieu. The boiler (copper cylinder )in the bathroom can remain, I cannot understand why it should be moved. As far as cost is concerned I hav'nt a clue, get a quote fron at least two installers.
Q:The Difference between Coal - fired Boiler and Circulating Fluidized Bed Boiler in Power Plant
1) is particularly good for fuel adaptability.
Q:I have bled the radiators and drained the expansion tank. The noise sounds like water boiling or percolating in the boiler and it resonates thru the system .Any other ideas?ThanksKH
You're right! That sound you hear is water boiling. Excessive noise could be a result of sediment at the bottom of the tank rolling around in there. It is very normal. If you can't live with the sound, you may want to clean the tank, which is a very involved process. Try to insulate the pipes for sound and temp. loss.
Q:What is the modular gas boiler?
As we all know, the thermal efficiency of all boilers refers to the thermal efficiency at full load, while the actual operation, the boiler system within 80% of the time is in low load or variable load conditions.
Q:why is our boiler is making a bubbling sound?
Boiler Makes
Q:In the boiler, how to understand the "atmospheric pressure" and "pressure" these two concepts?
In the boiler, "atmospheric pressure" refers to the same with the atmosphere, not pressure, "pressure" refers to the pressure.

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