Energy-saving emission-reducing coal fired boiler
Provided is an energy-saving emission-reducing coal fired boiler, comprising a boiler barrel, a smoke tube, a water-cooling wall tube, a hearth, a fire grate, a coal bunker, a coal gate, a front arch and a rear arch. The energy-saving emission-reducing coal fired boiler is characterized in that the...
Saved in:
Main Author | |
---|---|
Format | Patent |
Language | Chinese English |
Published |
22.02.2012
|
Subjects | |
Online Access | Get full text |
Cover
Loading…
Summary: | Provided is an energy-saving emission-reducing coal fired boiler, comprising a boiler barrel, a smoke tube, a water-cooling wall tube, a hearth, a fire grate, a coal bunker, a coal gate, a front arch and a rear arch. The energy-saving emission-reducing coal fired boiler is characterized in that the longitudinal cross section of the rear arch has a Z shape; two horizontal strokes of the Z shape are straight or are inclined at an angle of 1-30 DEG towards the front of the boiler, wherein the inclination angle is 10 DEG in an embodiment; and the turning portions between the two horizontal strokes of the Z shape are two smooth circular arcs with identical or different radians. In this way, burned powder coals in the rear portion of the hearth are retarded and returned to a certain extent by the rear arch of the energy-saving emission-reducing coal fired boiler adopting the above technical scheme, making the combustion more complete, further enhancing the thermal efficiency and meeting the emission standards. |
---|---|
Bibliography: | Application Number: CN20102697698U |