reciprocating-grate-biomass-fired-steam-boiler

DZW Reciprocating Grate Biomass Fired Steam Boiler

Model: DZW

Rated Evaporation: 2-10T/H

Rated Steam Pressure: 1.0/1.25/1.6 Mpa

Design Fuel: Jute/Waste fabric/Coal/Biomass Fired

Thermal Efficiency:> 82%

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SZL Series Water Tube Biomass Fired Boiler

The DZW series reciprocating grate biomass steam boiler is a single-drum water-tube steam boiler featuring a split-body design with separate upper and lower sections. The upper main body of the boiler consists of upper and lower drums, water-cooled walls connected by left and right headers, and convection tubes arranged between the drums; the inner lining comprises firebrick and refractory concrete-lined furnace walls and front/rear arches, while the exterior features a steel frame with protective plates, with insulation material filled in the interlayer to effectively reduce heat loss.

The lower section of the boiler is equipped with an advanced reciprocating grate (also known as a stepped grate or inclined grate) combustion system. This technology is one of the most widely used solid fuel combustion methods today, particularly suitable for burning biomass fuels with uneven particle sizes, low moisture content, and low-melting-point ash, such as coconut shells, biomass waste, industrial waste, and municipal solid waste.

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Technical Parameter

Model	DZW2	DZW4	DZW6	DZW10
Rated Steam Capacity(t/h)	2	4	6	10
Rated Working Pressure(Map)	1.0/1.25/1.6	1.25/1.6	1.25/1.6	1.25/1.6
Rated Steam Temp.(℃)	184/194/204	194/204	194/204	194/204
Feed-water Temp.(℃)	20	20	20	20
Boiler Proper Heating area(m²)	47.8	92	158.6	243
Effective Boiler Area(m²)	3.3	6.2	9.2	15.2
Water Volume(m³)	5.9	7.2	10	13
Design Efficiency (%)	>87	>87	>87	>87
Design of Fuel	Coal, Wood Pellet, Biomass
Fuel Consumption (kg/h)	468	934	1410	2345
Transportation size(LWH)(m)	5.32.62.95	6.42.63.1	6.62.93.6	8.453.353.65
Weight(t)	20.5	28	37	68

Available Fuels

Item	Low Heat Value
II Class Bituminous	4500-5000 kcal/kg
Pellet	3000-4200
Wood Chip(oak)	3830 kcal/kg
Rick Husk	2600-3600 kcal/kg
Pale Shell	2997 kcal/kg
Coconut Shell	3885 kcal/kg
Sawdust	3120 kcal/kg
Bagasse	1665 kcal/kg
Corn Cobs	4241 kcal/kg

Bagasse

Cassawa Waste

Coconut Husk

Pale Fiber

Corn Cobs

Pale Bunch

Pellet

Rick Husk

Sawdust

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Reciprocating Grate Biomass Steam Boiler

Product Advantages

High Adaptability

The reciprocating grate can flexibly handle biomass solid fuels of various shapes and sizes.

Full combustion

The stepped advancement structure ensures that the fuel is advanced layer by layer and burned in stages, improving combustion efficiency.

Stable Operation

Automatically control the grate operation frequency to maintain the heat load balance in the furnace.

Convenient Maintenance

Reasonable structure, easy to clean slag and maintenance, reducing operation and maintenance costs.

Environmental Protection and Energy Saving

High-temperature combustion combined with efficient tail heating surface configuration to achieve both thermal efficiency and environmental protection indicators.