SZL series biomass boiler adopts longitudinally arranged double drums, equipped with chain grate. Biomass is a clean energy fuel. It is low-cost, easy to obtain and realizes waste recycling. It produces less pollutants during combustion, conforming to market trends and customer demands.
The boiler consists of two major parts: upper heating surface of boiler body and lower combustion equipment. Fuel burns in combustion equipment. Flue gas flows through furnace, burnout chamber, convection tube bundles into tail flue, then discharges to atmosphere via dust collector, induced draft fan and chimney.
Membrane water walls are arranged on both sides of furnace, improving tightness, enlarging furnace volume and heating surface. Secondary air controlled by valves is arranged on front and rear walls. It enables complete fuel combustion, lifts combustion & thermal efficiency, cuts fuel cost and reduces residues.
With high automation level, stable & safe operation and comprehensive protection functions, this boiler is the preferred choice for many enterprises.

Performance Characteristics

  1. Convection heating surface delivers high heat exchange efficiency and stable boiler efficiency.
  2. Reasonably matched front & rear arches with large coverage maintain high furnace temperature.
  3. Double drum layout achieves high combustion efficiency and reduces operating cost by 5~10%.
  4. Chain grate panels and front & rear smoke box panels are processed by CNC plasma cutting, neat and attractive.
  5. Optimized cross-section ratio of downcomers and risers ensures stable combustion conditions.
  6. Large drum volume with complete internal fittings.
  7. Equipped with automatic feedwater regulation, high/low water level alarm, overpressure protection, flameout protection.
  8. Air volume of each air chamber can be adjusted for different fuels and combustion phases. Horizontal air pressure is uniform to avoid partial combustion.
  9. Stable operation and certain overload capacity.
Model
SZL6
SZL8
SZL10
SZL15
SZL20
SZL25
SZL30
Rated steam capacity(t/h)
6
8
10
15
20
25
30
Rated working pressure( Mpa )
1.25/1.6/2.5
Rated steam temperature（℃）
194/204/225
 Feed water temperature （℃）
20
Themal efficiency (%)
>83
Exhaust flue gas
temperature(℃）
~150
Fuel type
Coal,biomass pellet,wood sawdust,bamboo chip,wood block,straw,jute, palm shell
Fuel consumption (kg/h)
1120
1450
2150
2200
2900
3650
4350
Max transportation weight(t)
22
25
28
30
35
40
45
Max transportation size(mm)
7700×2800×3450
7800×3100×3520
7900×3300×3640
10000×3200×3500
11000×3300×3500
17550×7300×8900
18230×7600×9200