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Coal Fired Corner Tube Steam Boiler

  • Overview
  • Advantage
  • Parameter

Coal fired corner tube steam boiler is a boiler with large diameter thick-wall drop tube located in the four corners of the boiler and composed of a frame supporting the overall weight. Water cycle is unique and safe, boiler start quickly, structure compact , could effectively save steel and boiler civil construction costs and follow-up maintenance costs. Corner tube boiler furnace and convection heating surface adopt self-supporting structure. Corner tube boiler has high efficiency and energy saving, which is widely used for different industrial production process and for central heating purpose.


Technical Advantages



1. The four corners of the corner tube hot water boiler are large-diameter thick-walled downcomers, the boiler is consist with downcomers, boiler drum, water-cooled wall, header, flag-shaped heating surface, and reinforcing beam. No steel frame structure.

2. The drum of the angle tube hot water boiler is external longitudinal arranged or a horizontal arranged, the furnace outlet is arranged at a high position, and the combustion space is relatively sufficient. 

3. Fully enclosed membrane water-cooled walls are used around the furnace and the heating surface channel, the furnace has a large cross-sectional area and large volume. 

4. Adopts unique flag-type heating surface structure technology, a large number of convection heating surface tubes are led out of the film-type water-cooled wall tubes to form a heating surface like a banner. 

5. The grate of the corner tube boiler adopts the scale type or beam type grate, which adopts the isobaric structure of the gale bin. Below the grate surface is a large isobaric chamber. Between the isobaric air bunker and the grate face are several group.

6. Could arrange secondary air on the front wall and rear wall of the furnace according to the different fuel types. 

7. Economizer or air preheater is arranged at the rear of the boiler, which can absorb the heat of the flue gas, reduce the flue gas exhaust temperature, save energy, and improve efficiency.



Parameter


Model Rated Evaporation Capacity(t/h) Rated Pressure (Mpa) Rated Steam Temperature(℃) Feed Water Temperature(℃)
DHL20-1.25-AII 20 1.25 194 105
DHL20-2.5-AII 20 2.5 226 105
DHL25-1.25-AII 25 1.25 194 105
DHL25-1.6-AII 25 1.6 204 105
DHL35-1.25-AII 35 1.25 194 105
DHL35-1.6-AII 35 1.6 204 105
DHL35-2.5/400-AII 35 2.5 400 105
Note: Parameter is for reference only, if any changes should follow the actual drawing

1. The four corners of the corner tube hot water boiler are large-diameter thick-walled downcomers, the boiler is consist with downcomers, boiler drum, water-cooled wall, header, flag-shaped heating surface, and reinforcing beam. No steel frame structure.

2. The drum of the angle tube hot water boiler is external longitudinal arranged or a horizontal arranged, the furnace outlet is arranged at a high position, and the combustion space is relatively sufficient. 

3. Fully enclosed membrane water-cooled walls are used around the furnace and the heating surface channel, the furnace has a large cross-sectional area and large volume. 

4. Adopts unique flag-type heating surface structure technology, a large number of convection heating surface tubes are led out of the film-type water-cooled wall tubes to form a heating surface like a banner. 

5. The grate of the corner tube boiler adopts the scale type or beam type grate, which adopts the isobaric structure of the gale bin. Below the grate surface is a large isobaric chamber. Between the isobaric air bunker and the grate face are several group.

6. Could arrange secondary air on the front wall and rear wall of the furnace according to the different fuel types. 

7. Economizer or air preheater is arranged at the rear of the boiler, which can absorb the heat of the flue gas, reduce the flue gas exhaust temperature, save energy, and improve efficiency.


Parameter


Model Rated Evaporation Capacity(t/h) Rated Pressure (Mpa) Rated Steam Temperature(℃) Feed Water Temperature(℃)
DHL20-1.25-AII 20 1.25 194 105
DHL20-2.5-AII 20 2.5 226 105
DHL25-1.25-AII 25 1.25 194 105
DHL25-1.6-AII 25 1.6 204 105
DHL35-1.25-AII 35 1.25 194 105
DHL35-1.6-AII 35 1.6 204 105
DHL35-2.5/400-AII 35 2.5 400 105
Note: Parameter is for reference only, if any changes should follow the actual drawing

Model Rated Evaporation Capacity(t/h) Rated Pressure (Mpa) Rated Steam Temperature(℃) Feed Water Temperature(℃)
DHL20-1.25-AII 20 1.25 194 105
DHL20-2.5-AII 20 2.5 226 105
DHL25-1.25-AII 25 1.25 194 105
DHL25-1.6-AII 25 1.6 204 105
DHL35-1.25-AII 35 1.25 194 105
DHL35-1.6-AII 35 1.6 204 105
DHL35-2.5/400-AII 35 2.5 400 105
Note: Parameter is for reference only, if any changes should follow the actual drawing

Transaction Process

PRE-SALE SERVICE

1) 24 hours customer service hot line, we will offer you professional technical data, suggestion, and purchase guidance.

2) Welcome to visit our factory, we could offer you free airport pick up service, and help you book hotel, tickets, or plan route, etc.


ON-SALE SERVICE

Our professional engineering team will customize the boiler based on your requirement. Also, we could help arrange the boiler room and offer appropriate energy utilization plan, to maximum boiler users’ profit. Sitong Boiler cooperates with experienced transportation agency, to ensure the products arrive to destination intactly. We have overseas installation team for door to door installation, debugging, and periodic maintenance.

Process

customer inquiry -- professional consulting service, customize boiler based on requirement -- place order and pay deposit -- boiler manufacturing -- pay balance -- delivery -- installation, debugging and periodic maintenance


AFTER-SALE SERVICE

1) Offer lifelong door - to - door after sale service and quarterly visiting. We have professional overseas engineering team and overseas agencies, to solve users’ problems during boiler operation

2) 24 months warranty period, if boiler body or accessories are damaged under proper operation, Sitong boiler will maintenance or replace the damaged accessories for free (except spare parts).

3) 24 hours service hot-line, offer proper solutions to solve the problems happened during operation.

Inquiry

info@stongboiler.com

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