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Low Pressure Coal Fired Steam Boiler Wood Chip Biomass Boiler Over - Limit Protection

Low Pressure Coal Fired Steam Boiler Wood Chip Biomass Boiler Over - Limit Protection

  • Low Pressure Coal Fired Steam Boiler Wood Chip Biomass Boiler Over - Limit Protection
  • Low Pressure Coal Fired Steam Boiler Wood Chip Biomass Boiler Over - Limit Protection
Low Pressure Coal Fired Steam Boiler Wood Chip Biomass Boiler Over - Limit Protection
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
Control System: Automatic Water Circulation: Natural Circulation
Installation: Assembled Boiler Media: Water And Steam
Boiler Structure Level: Chain Grate,double Drum,Threaded Pipe Style: Horizontal
Warranty: 18 Months Capacity: 2/10/20/25 T/h
High Light:

coal fired water tube boiler


coal fired central heating boilers

Horizontal and low pressure SZL double-drum coal/biomass/wood chips steam boiler for garment and laundry


1. Original mode water wall structure. Compared with the traditional structure, this structure has the characteristics of large heat transfer area, good conduction effect, low heat loss, good air tightness, no deformation of the furnace wall, and no ash leakage.

2. Extended grate design. The front and rear shafts of the grate are lengthened, so that the fuel can be more fully burned, and the effective area of ​​the grate is increased, and the boiler has a strong overload operation capability.

3. Strong adjustment performance. The boiler adopts segmental air supply and has good sealing performance, which can effectively control the air supply volume in each combustion stage and achieve the best adjustment of combustion effect.

4. High thermal efficiency. The company uses a tube wall and a cast iron economizer to further reduce the temperature of the exhaust and improve the efficiency of heat utilization.

5. The overall assembly and delivery of the factory saves the user's installation time, reduces the installation cost of the user, and improves the efficiency of the boiler.

6. The boiler adopts aluminum silicate and centrifugal glass wool as insulation materials, which have good heat preservation performance, light weight and convenient transportation and installation.

7. The upper part of the boiler is equipped with a fire-catching hole device, and the lower part is provided with a cleaning device for easy maintenance and maintenance.

8. The manufacture and design of this series of boilers are carried out in accordance with the requirements of GB/T16508.4-2013 "Boiler Shell Boiler Part 4: Manufacturing, Inspection and Acceptance", which fully complies with the national standard.



Data sheet 1

Auxiliary components
Auxiliary System Parts
Water supply system soft water, demineralized water system, deaerator, feed water pump, water tank, ammonia adding device, dosing device
Steam (hot water) system Steam separator (water) cylinder, desuperheater
Fuel supply system Coal machine, belt coal conveyor, crusher, vibrating screen electronic belt scale, electromagnetic iron remover, double pear type unloader, pre-furnace coal feeder, etc
Smoke system Blower, induced draft fan, chimney, etc.
Sewage (steam) system, row, row, sampler, silencer
Electronic control system General control, PLC control, DCS control
Other equipment in the boiler room Heat exchange station, circulation pump, decontamination unit, etc.
Flue gas purification system Dust collector, desulfurization device, denitration device, etc.

General standard

1. Atmospheric pressure boiler paint, packaging should comply with JB/T1615-1991 "boiler paint and packaging technical conditions" provisions.
2. The water quality of atmospheric boiler feed water and pot water should meet the requirements of GB1576-2001 Industrial Boiler Water Quality.
3. Pipeline installation shall comply with GB50235-97 "Construction and Acceptance Specifications for Industrial Pipework (Metal Pipeline)" and GBJ242 "Warm Heating
And Sanitary Engineering Construction and Acceptance Specifications".
4. No valves shall be installed on the atmosphere communicating pipe and between it and the boiler.
5. Boiler smoke and dust emissions shall comply with the provisions of GB13271-2001 "Boiler Air Pollutant Emission Standards".
6. The boiler noise shall comply with the provisions of GB12348-1990 Noise Standards for Industrial Enterprises.


Data sheet 2

NO. Paraments Unit Technical Data
1 Model   SZL6-1.25-AII SZL6-1.6-AII SZL10-1.6-AII SZL10-2.45-AII SZL10-2.45/400-AII
2 Transportation Size m 9.3×2.6×3.6 9.3×2.6×3.6 12.5×2.7×3.9 6.8×2.6×3.5 7.9×3.2×3.5
3 Rated evaporation capacity t/h 6 6 10 10 10
4 Working Pressure Mpa 1.25 1.6 1.6 2.5 2.45
5 Steam Temperature 183 203 203 280 400
6 Thermal Efficiency % 75.44 76.73 75.65 76.73 78.51
7 Consump kg/h 1002.2 1188.4 1389.8 1412.6 1914.55
8 Heating Area 38.29 249.06 386.22 394.37 408.78
9 Grate Area 6.6 8.3 10.2 11.73 12.8
10 Burning Type   Layer Burning Layer Burning Layer Burning Layer Burning Layer Burning
11 Fuel   Biomass Biomass Biomass Biomass Biomass
12 Weight T 33.6 36.6 48.1 51.7 52.2


Low Pressure Coal Fired Steam Boiler Wood Chip Biomass Boiler Over - Limit Protection 0uctions

Fault diagnosis and processing system features
1. Steam pressure over-limit protection: When the steam in the pot is over-pressure, the control system immediately enters the equipment to stop working, and the sound and light alarm is given. The screen displays “Vapor pressure is extremely high”. Until the fault is eliminated, press the reset button to cancel the alarm state.

2. Water shortage protection: When the boiler has a low water level failure due to pump failure or other reasons, the control system immediately turns off the burner power supply, enters the interlocking state, sound and light alarm until the fault is eliminated, and then press the reset button to cancel the alarm state.

3). Boiler water level over-limit protection: When the water level is higher than the upper limit warning water level, the sound and light alarm. Prompt "the water level in the pot is too high", the display prompts drainage, and the pump starts to drain. The fault is automatically restored after the fault is eliminated, and the pump stops working.

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


Low Pressure Coal Fired Steam Boiler Wood Chip Biomass Boiler Over - Limit Protection 1

Contact Details
Yong Xing Boiler Group Co.,Ltd

Contact Person: Ms. Bettysun

Tel: 86-13849050429

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