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Flake Chain Grate Coal Fired Steam Boiler Industrial Water Tube Boiler

Flake Chain Grate Coal Fired Steam Boiler Industrial Water Tube Boiler

  • Flake Chain Grate Coal Fired Steam Boiler Industrial Water Tube Boiler
  • Flake Chain Grate Coal Fired Steam Boiler Industrial Water Tube Boiler
Flake Chain Grate Coal Fired Steam Boiler Industrial Water Tube Boiler
Product Details:
Place of Origin: HENAN
Brand Name: YONGXING
Certification: ISO9001,ISO14001,SGS,BV
Model Number: DZL/SZL
Payment & Shipping Terms:
Minimum Order Quantity: 1set
Price: negotiable
Packaging Details: Nude packing,Package with Steel Box,or Wooden Box
Delivery Time: 10-15days
Payment Terms: T/T, L/C, Western Union
Supply Ability: USD1000/SET
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Detailed Product Description
Thermal Efficiency: 76.87% Placement Type: Horizontal Type
Specification: 1,2,4,6,8,10ton Water Circulation: Natural Circulation
Burner: Riello, Baltur,or Optional Packing: Nude Package,Package With Steel Box,Wooden Box
Boiler Structure Level: Chain Grate,Single Drum,Threaded Pipe Name: Pulverized Coal Fired Boiler
High Light:

coal fired water tube boiler


coal fired hot water boiler

Single Drums Water Tube With Flake Chain Grate Industrial Steam Coal Fired Boiler

The characteristics of the boiler
1. Prevent cracks. The arch tube and the threaded tobacco tube are used to form the drum, so that the drum is changed from the quasi-steel body to the quasi-elastic body structure, and the tensioning members of the tube plate area are eliminated, thereby reducing the stress. The pipe was changed from two return strokes to a single return stroke, which solved the problem of cracks in the tube sheet.

2. Prevent boiler casing bulge. Due to the arrangement of the riser row in the lower part of the drum, the dead water area at the bottom of the drum is eliminated, so that the sludge is not easily deposited, and the high temperature zone of the drum can be well cooled, preventing the bulge in the lower part of the boiler shell.

3.  Improve combustion efficiency. The high-efficiency heat transfer thread pipe is used to obtain the enhanced heat transfer effect, which achieves the characteristics of heating and output of the boiler, and improves the thermal efficiency of the boiler.

4. Compact. Compared with the same type of boiler, the external dimensions are small, saving the investment in the boiler house infrastructure.

5. Smokeless ash accumulation. The use of a threaded pipe enhances heat transfer and improves the heat transfer coefficient and thermal efficiency. Since the flue gas is disturbed in the pipe, the pipe is less likely to accumulate ash and acts as a self-cleaning.

6. The fuel is easy to burn. In the furnace, high-efficiency energy-saving furnace arch with integral heat-resistant concrete is used to improve the coal fire condition. The independent air chamber is adopted to achieve reasonable air distribution, which forms an aerodynamic field favorable for combustion in the furnace, thereby expanding coal. 

7. Eco-Friendly. The furnace arch and outlet smoke window of the boiler have certain dust removal effects. The original dust emission concentration of the boiler is controlled below the standard to ensure that the boiler dust emission meets environmental protection regulations.


Data sheet 1

Matching auxiliary Type
Chain Grate travelling grates OR flake type chain grates
Induced Draft Fan GY1-18 4#Right 0°
Electromotor Y 132S-4B3
Forced Draft Fan 4-72-3.2A Right 315°
Electromotor Y 90L-2
Electric Pump JGGC2-8X13
Electromotor Y 90L-2
Govenor Stepless speed governor
Electromotor YCT112-4A
Ash Extractor Screw type
Electromotor Y 90S-6
Dust Collector Multi-tube XTD-1


Data sheet 2


                                                               DZL QUICK INSTALLED BOILER

Rated evaporation capacity t/h 1 2 3 4 6
Rated working pressure MPa 0.7/1.0/1.25 0.7/1.0/1.25 1.0/1.25 1.25/1.6 1.25/1.6
Rated steam temperature ℃ 170/184/194 170/184/194 184/194 194/204 194/204
Water-supply temperature ℃ 20 20 20 20 20
Body Heated area m2 6 54 83.5 115 186
Economizer Heated area m2 10.56 27.6 41.2 53 87.2
Chain Grate area m2 2.3 2.3 4.1 4.1 5.85
Exhaust temperature (℃) 120 120 120 125 125
Maximum shipping weight ton 19 25 28 32 43
4500×2000×3200 5900×2200×3400 6200×2200×3450 6700×2400×3450 7700×2600×3600


boiler model Unit SZL6-1.25/1.6-AII SZL8-1.25/1.6-AII SZL10-1.25/1.6-AII SZL12-1.25/1.6-AII SZL15-1.25/1.6-AII SZL20-1.25/1.6-AII SZL25-1.25/1.6-AII
capacity ton/h 6 8 10 12 15 20 25
rated pressure Mpa 12.5/1.6 1.25/1.6 1.25/1.6 1.25/1.6 1.25/1.6 1.25/1.6 1.25/1.6
rated steam temeperature 193/204 193/204 193/204 193/204 193/204 193/204 193/204
feed water temperature 105 105 105 105 105 105 105
radiation area m2 18.19 22.14 25.8 25.8 34.117 53.78 99.21
convection area m2 121.9 158.86 200.38 250.17 331.616 411.8 457.78
economizer area m2 53.13 104.64 130.8 174.4/261.1 117.72/117.2 212.4 476.16
valid grate area m2 7.55 9.34 10.98 12.78 16.24 20.84 24.76
exhaust gas temperature 165.78/169.85 161/165 160/162 158/150 156.7/159.4 153/159 152/156
design efficiency % 80.11/79.44 79.95/79.98 80.55/80.28 80.68/80.72 80.48/80.56 81.09/80.77 81.38/81.26
fuel consumption kg/h 863.28/874.78 1153.42/1161.38 1430.96/1442.74 1714.5/1721.8 2167.89/2164.7 2868.63/2884.7 3551/3556
max part size for delivery mm 7100*2800*3500
Bulk packing


Flake Chain Grate Coal Fired Steam Boiler Industrial Water Tube Boiler 0
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