DZL series coal-fired steam boiler

DZL series chain grate boiler, is our self-developed product, bringing many national prizes on itself with compact structure and good working conditions. Inverted “α” design, make it available to fire low value coal. It is also a fire tube boiler, a packaged boiler, lighter weight and smaller in size, easy and convenient to transport. Though small size it is, DZL series biomass fired boiler is appropriate for buildings heating, and industry process hot water supplying.


1 – 20t/h


0.7-2.5 MPA


Bituminous coal,lean coal,anthracite


Heating, chemical, food, tobacco, textile, printing and dyeing,

p feed, medicine, building material, wine, rubber, hospital

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Conducive to low-quality coal combustion

DZL chain grate coal fired boiler design adopts the latest research product, " Second Prize of Advance Awarded by Xi'an Jiaotong University ", the back arch is low and long and the part near the exit is inverse inclined type, while the front arch is 45 inclined type, they together from a downside "α" flame structure, which makes the lean coal combustion easier and it can adjust itself to a wide range of coal types.

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Flexible adjustment, symmetrically distributed wind

Separate adjustable wind chamber under the fire grate is equipped and wind is fed from two sides. It adopts new type crack screw wind adjustment structure so that the wind adjustment and ventilation cross section proportion is 100%. Thus, it is easy to adjust and the wind is distributed symmetrically.

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Avoid bulge defects

New furnace structure, bulge defects caused by the bottom of the drum being heated directly is avoided.

Prevent the grate air leakage

There is push-pull damper dust removal equipment. The damper adopts finish machining cast iron seal structure, so the secondary combustion distortion and air leaking in the grate is effectively prevented.

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