10 12 15 20 ton wood chip pellet biomass fired steam boiler

Capacity:2 ton/h to 40 ton/h

Design pressure:1.0Mpa(10bar/10kg/145psi), 1.25Mpa(13bar/13kg/180psi), 1.6Mpa(16bar/16kg/232psi),2.5Mpa(25bar/25kg/362psi), other pressure need to be specially design.

Stem temperature:184℃,194℃,205℃,226℃,other temperature need to be specially design.

Design fuel:coal,biomass,palm oil shell,wood chips,biomass pellet,cashew nut, rice husk,solid fuel,etc

Structure: double drum water tube “A” type

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Introduction
Parameters
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The SZL double drum water tube steam boiler is horizontal type water tube boiler, the combustion equipment is chain grate. The boiler adopts fast assembly or packaged assembly structure, boiler with steam capacity lower than 4t/h is fast assembly water tube structure, boiler with steam capacity between 4~35t/h is consisted of upper part (boiler heated part) and lower part(combustion equipment). The wood fired steam boiler has the advantages of compact structure, high steam quality, sufficient output, operate convenient and environmental protection.

SZL series “A” type chain grate boiler
Our company SZL type boiler is a double-drum water tube assembly chain grate boiler (A type layout). The boiler proper has an upper drum and a bottom drum longitudinally arranged along the boiler center. The front of the upper drum and two sides water wall tubes constitute the boiler hearth radiation heating surface, and the tubes between the rear of the upper drum and the bottom drum constitute the convection heating surface. The economizer is arranged on the rear of the boiler,part of heat from high temperature exhaust gas generated by burning was absorbed by economizer, then the exhaust gas go through the cooling chamber,exhaust gas enters the convection heating surface to transfer heat power again, and through economizer,dust collector, finally draught by ID fan to Chimney,discharges into the atmosphere.

Boiler model	Rated capacity	Rated pressure	Rated steam temp.	Feed water temp.	Exhaust gas temp.	Design effiency	Boiler water volume	Weight	Dimension	Delivery mode
Boiler model	ton/h	Mpa	℃	m2	℃	%	m3	ton	mm	Delivery mode
SZL2	2	1.25/1.6/ 2.5/3.82	194/204/ 226/450	20/105	130.67	83.13	6.76	22	5900×2850×3460	Package
SZL4	4				142	84.23	5.1	29	6460×3280×3462	Package
SZL6	6				142	84.81	8.4	34	7830×3560×3462	Package
SZL8	8				149.15	85.02	9.4	40.5	8870×3670×3462	Package
SZL10	10				152.7	86.2	8.35	24	7645×3180×3526	Assembly
SZL12	12				148.7	86.56	12.8	37	9258×3294×3524	Assembly
SZL15	15				149.86	86.29	15.5	24.7	11010×3300×2200	Assembly
SZL20	20				147.4	86.8	15.8	25.97	16680×6200×8420	Assembly
SZL25	25				149.6	86.4	16.5	28	8300×3000×3600	Semi-Assembly
SZL30	30				148.6	86.8	16.8	29	8500×3600×3640	Semi-Assembly
Notice: 1.special proposal is available according to different place’s different encironmental requirements; 2. burning fuel’s heat value/chemincal component different, parameter different; 3.Since the boiler technology is keep updating, if there is any update in the future, no special imform.