SZL Series D-type Coal Fired Boiler

Output: steam, hot water
Capacity: 2-8 ton/h
steam pressure:1.25-3.82Mpa
Available Fuel: biomass,Class II bituminous coal
Applied Industries: for heating/drying/turbine, in food/beverage, paper, package, textile, feed mill, chemical, building, hotel, laundry etc

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Introduction

Our SZL Series D‑type Boiler is a longitudinal chain‑grate double‑drum water‑tube boiler adopting offset D‑type furnace layout. Built with compact structure and factory pre‑assembly, it requires minimal on‑site installation work.

Equipped with proven advanced technologies, the boiler delivers outstanding energy‑saving and eco‑friendly performance. It has won the Second‑Class Prize of National Science and Technology Progress Award and the Golden Lion Award from Singapore New Products Exposition, and is listed as a key recommended product for national energy‑saving initiatives.

Advantages

Offset furnace design, 15% bigger furnace combustion, the heated area increases along.

Membrane type furnace wall, not easy to collapse, good airtightness, no deformation, no dust falling

Best wind adjust design, segmented air supply (preheating zone, drying zone, main combustion zone, coke zone, ash slag zone) can freely adjust the air volume

Secondary cyclone burnout chamber, reduce fuel cost, save running cost, improve boiler thermal efficiency

Built-in dust removal device inside boiler, effectively solve the problem of coking, low original dust discharge concentration

Equipped energy-saving device like economizer/preheater/cyclon/wet scrubber, environmental protection and energy conservation⑦ Recommended suitable grate materials, and chain grate, reciprocating grate, or water cooling vibrating grate, according the fuel features

Feature

SZL biomass boiler design capacity in 4ton-50ton. Advantages: High technology, environmental and energy-saving. Large heating surface, make sure enough space for biomass burning, automatic fuel feeding and slag removing system.

Cyclone chamber structur

high-temp flue gas through high-speed rotation/mixing combustion/dust separation, achieving dust removal & energy saving & environmental protection.

Indenpend wind chamber structure

make air regulation sensitive and make wind uniformly, resolve the wind plug, wind channeled, partial burn phenomenon.

Membrane water wall construction

structure advantages of high heat transfer coefficient, good heat transfer effect, low heat loss, good air tightness of furnace wall.