Movement as needed
Several independent hydraulic drives move the rows of grate bars. Speed and stroke length can be set for each drive.
Air-cooled grates
Modular grate systems for the combustion of biomass and other solid fuels. Hydraulic drives and adjustable undergrate air zones allow adaptation to the fuel in question.
Compare grate systems
Fuel.
Movement.
Combustion air.
The grate rows move the fuel. Air flows up through the grate from below and cools the grate surface at the same time.
Schematic illustration of the principleOne system. Individually controlled.
Fuel movement and air supply are matched to each other.
Targeted air supply
Individually adjustable undergrate air zones feed the combustion air through slots in the grate bars into the fuel bed.
Cooling with air
The combustion air also cools the grate surface. The design is matched to the properties of the fuel.
Which grate suits the fuel?
Three designs from the existing product range at a glance.
| Grate type | Design | Application | Details |
|---|---|---|---|
| Grate 415 | Stepped reciprocating grate | Reciprocating grate for a wide range of solid fuels. | View type 415 |
| Grate 400 | Horizontal grate surface | Horizontal grate system for smaller outputs. | View type 400 |
| Grate 116 | Push-over grate stepped lengthwise | Push-over grate for clean fuels. | View type 116 |
The grate types in detail.
Grate 415
Reciprocating grate for a wide range of solid fuels.
- Design
- Stepped reciprocating grate
- Fuel
- Various solid fuels
- Moisture content
- Up to 65 %
- Conversion
- Water cooling with type 715
Fixed and moving rows of grate bars alternate. Every second row moves the fuel forward; burnt-out fuel is discharged at the lower end of the grate via the slag hopper.
The grate bars in each moving row advance together, making the row less sensitive to foreign objects such as metal parts. Drives and undergrate air zones can be controlled independently.
Type 415 and the water-cooled type 715 are compatible. A later conversion to water cooling is possible.
Grate 400
Horizontal grate surface
Grate 400
Horizontal grate system for smaller outputs.
- Design
- Horizontal grate surface
- Output range
- Approx. 3–10 MW
- Control
- Individual grate drives and undergrate air zones
Type 400 is intended for small outputs of roughly 3 to 10 MW. Unlike the other types, it has a horizontal surface.
In this version, too, grate drives and undergrate air zones can be controlled individually.
Grate 116
Push-over grate for clean fuels.
- Design
- Push-over grate stepped lengthwise
- Fuel
- Clean fuels
- Moisture content
- Up to 65 %
- Versions
- Air-cooled or water-cooled
In each section row, a fixed and a horizontally moving grate bar lie side by side in pairs. Lengthwise, the sections form a stepped structure.
The stroke speed can be set independently for each drive cylinder. The undergrate air can be controlled section by section. Air-cooled and water-cooled versions are available.
Technical documents.
Grate systems for biomass, waste wood and refuse-derived fuels
Ask Kablitz for the technical documents relevant to your product and application.
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Which data helps with system design?
Describe the fuel, available quantity, moisture content and required energy output. An existing fuel analysis and site information help match the combustion system to the project.
Can I inquire without complete design data?
Yes. Technical checklist fields are optional: provide the data you already know and leave outstanding points for further discussion.
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