The biomass heating system has a wide power range with high fuel flexibility: The automatic moving grate furnace UTSR visio is designed for the combustion of forest chips and pellets. The combustion plant is particularly suitable for fuels with a high moisture content.
1. stoking with stoker, with ESCD hydraulic inserter or HFED direct inserter (optional)
2. automatic ignition (optional)
3. air-cooled flatbed feed grate with power-dependent feed control (optional: high-alloy grate bars)
4. 3-zone combustion chamber
5. radiant vault
6. secondary air supply 1 and 2
7. 3 draughtheat exchanger
8. controlled boiler bypass (optional)
9. multi-cyclone with automatic discharge of fly ash
10. boiler door with pneumatic boiler tube cleaning system
11. cleaning door to vault room
12. door with safety interlock to combustion chamber and combustion grate (optional: combustion chamber camera)
13. automatic or manual under-grate ash removal
14. automatic discharge of grate ash directly into ash garbage can or ash container
15. boiler cladding for reduced radiation loss and noise emissions
16. air intake openings
17. pressure relief flap
18. automatic pressure surge cleaning from the boiler bypass (optional)
19. cleaning opening on both sides for multi-cyclone
20. wall temperature sensor for monitoring the combustion chamber temperature
21. access opening for under-grate ash removal
22. flue gas recovery (optional)
For technical data on the UTSR visio moving grate furnace, please refer to our data sheet >>.
You can find more information about our discharge systems here >>.
Schmid AG wood-burning furnaces have intuitive operation - the Personal Touch visio control system. It guarantees optimal combustion conditions with high efficiencies. In addition to a modern design and high user-friendliness, the web technology HMTL5, the worldwide standard for modern web browsers, is in use.
By using this technology, there are versatile possibilities for how the firing systems can be operated. Four independent connections can be made simultaneously to the plant for operation via a smartphone, tablet or the built-in touch panel.
You can find more information about the new PersonalTouch visio operation here >>.
Based on the fuel water content, the heat output generated, the combustion temperature and the current grate occupancy, the new Revolution adaptive control recognizes the fuel quality used.
With Revolution adaptive, a permanently low residual oxygen content in the flue gas is maintained even with changing fuel quality and the target output is always achieved. The flue gas recovery and air distribution are automatically adjusted and the ember bed is kept constant. This has a positive effect on efficiency, fuel consumption, emissions and wear.
The temperature of the primary air used for combustion is of great importance for an energy-efficient combustion process. The use of a combustion air preheater makes it possible to reduce the nominal output to 15 % in controlled part-load operation.
Based on the fuel water content, the heat output generated, the combustion temperature and the current grate occupancy, the new Revolution adaptive control recognizes the fuel quality used.
With Revolution adaptive, a permanently low residual oxygen content in the flue gas is maintained even with changing fuel quality and the target output is always achieved. The flue gas recovery and air distribution are automatically adjusted and the ember bed is kept constant. This has a positive effect on efficiency, fuel consumption, emissions and wear.
Automatic discharge of the ash under the moving grate by means of a
system directly into the grate ash removal screw or into a drop chute.
a chute.
Standard for UTSR-1200 visio to UTSR-8000 visio
When wood is burned, nitrogen oxides are formed from the nitrogen in the fuel . The nitrogen oxides (NOx) in the flue gas can be reduced by the SNCR process so that the legal guidelines are not exceeded.
Automatic pressure shock cleaning of the vault ceiling. An intensive blast of compressed air is used to clean off ash deposits on both sides of the vault at adjustable intervals. This reduces manual cleaning to a minimum.
The ESCD hydraulic slide-in valve operates on the sluice principle and consists of the hydraulic slide conveyor, the metering container, and a fire protection slide valve. In order to exclude a backfire into the fuel transport system, the hydraulic push feeder only retracts when the fire protection slide gate is closed.
The HFED direct gate valve consists of a push rod with 2 pulling hydraulic cylinders and the relief box. It is designed for installation in the on-site concrete channel.
Up to 900 kW nominal power and at a maximum fuel moisture of M 35, electric industrial hot air blowers are available for igniting the fuel in the firing pan or on the moving grate.
Boiler bypass for raising the exhaust gas temperature in startup and shutdown operation. This increases the filter availability.
The heat exchanger tubes are equipped with plug-in turbulators to lower the exhaust gas temperature. This increases the efficiency of the firing system. In case of frequent operation in partial or low load, the turbulators may have to be removed if no boiler bypass is available.
If one or both options are selected (boiler bypass and intermediate ceiling cleaning), the central pressure line is required as a pressure accumulator
required.
Three flow temperature ranges up to 115 °C, TÜV tested, are available for hot water boilers:
Regulated admixture of flue gas in primary and secondary zones to lower the grate temperature, ensure burnout when the secondary air enters and cool the combustion chamber. Recommended for fuels with a high calorific value (less than M30), with a low ash melting point and in combination with the DeNox process and flue gas condensation systems.
Optional firebox camera for visual inspection of the firebox via remote access.
The temperature of the primary air used for combustion is of great importance for an energy-efficient combustion process. The use of a combustion air preheater makes it possible to reduce the nominal output to 15 % in controlled part-load operation.
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