Spec
Sheet
PYROTEC
Grate
Firing
System
Boiler Plant
Köb Holzheizsysteme GmbH, Flotzbachstr. 33, A-6922 Wolfurt, Tel. +43/5574/6770-0, Fax 65707, E-Mail: [email protected]
Subject to technical changes
7010-1
2009-03-01_GB
Description:
The PYROTEC grate firing system has been designed for automatically burning all dry to wet wood fuels (waste wood,
pellets, wood chips, up to max. W50) and combines in the best way possible the benefits of underfeed firing with the
benefits of grate firing.
The PYROTEC Grate Firing System is characterised by high efficiencies and perfect incineration at all load levels. The
PYROTEC Boiler Plant has been tested and approved in accordance with the latest quality criteria as per EN 303-5 Heat-
ing Boilers for solid fuels, CE-certification in accordance with European Machinery Directive with continuous quality in-
spection by the TÜV.
max. forward flow temperature allowed:
100°C
max. operating pressure allowed:
6.0 bar
Safety heat exchanger:
Built into the boiler
Function:
-
The solid, powerful and heat-resistant feed auger moves the fuel over the burner trough into the descending and into
the grate zone, which drops down and travels. The holding devices for the back-burn sensor and the thermal extin-
guishing valve are situated on the conveyor pipe. Above the auger, there is a metering container with a light barrier to
ascertain the level of the fuel isolating layer required according to TRD 414.
-
The material to be burned is ignited manually or automatically by an electric heat gun (separate price item). The tried-
and-tested burner trough, the descending external grate and the moving burn-out grate made from highly-refractory
cast steel (material no.: 1.4823; approx. 12 mm) allow excellent performance control and highest safety against burn-
back in conjunction with automatic de-ashing system (separate price item) to be achieved for the combustion cham-
ber. The solid, horizontally positioned and large-volume firing block has been optimised in terms of incineration, con-
sists of a high-quality fireclay brick lining and is multiply insulated for the lowest possible surface temperatures.
In the lower part, the primary airflow is supplied to the incineration grates via a supply air fan in an output-controlled
fashion and pre-heated.
-
In the upper part of the firing block, the secondary airflow is blown into the gas space of the firing system by an out-
put-controlled fan via an encircling ring with high turbulence via individually adjustable nozzles.
This mixes the fuel gases with fresh secondary air for complete burning.
The firebox door is solidly constructed, air-cooled and very well insulated. Opening the firebox door with its solid dou-
ble-knuckle hinges is an ideal solution for maintenance purposes.
The thermal energy from the combustion gases is transmitted to the boiler water in a horizontally positioned pipe-type
heat exchanger.
The boiler is heavily insulated, cased in an aesthetically pleasing fashion and provided with excellent access through
the boiler door on the end side. The insulated boiler door also allows a pneumatic cleaner to be installed (separate
price item).
- The exhaust fan is specially designed for wood heating operation and is very quiet. solid, heat-resistant design with a
heat dissipation hub and is spring-supported. The fan casing on the intake port rotates infinitely variably, the blow-out
nozzle is round; it is usually mounted on the exhaust gas deduster (separate price item).
Scope of delivery:
- Feed auger with isolating layer, incl. extinguishing valve with dirt trap, extinguishing water container with holding de-
vice
- Fire block with burner trough, descending external grate and moving burn-out grate
- Boiler with horizontal pipe heat exchanger
- Exhaust blower
- Accessories: counter-flange, incl. bolts, seals and cleaning device
ACCESSORIES for PYROTEC grate firing (Art. KPT- …) at extra charge:
Designation Article
Text Dimensions
Use
Exhaust gas deduster 240 l
KPT-E…-2
7110
7110
Required
Exhaust gas deduster 800 l
KPT-E…-8
7110
7110
Variation of 240 litres
Preparation system for de-ashing
KPT-AV
7120
-
optional for KPT-A2-S
De-ashing in bin 240 l
KPT- A2-S
7120
7010
optional for KPT-AV
De-ashing in skip 800 l
KPT- A8-S
7120
7010
Variation for 240 litres
Pneumatic cleaning system
KPT-W…-S
7120
7010
optional
Automatic ignition system
KPT-ZG-S
7200
7010
not suited for > W40
Set of displacement rods
KPT-V…
7200
-
Base load boiler from KPT-720
Flue gas recirculation system
KPT-R…-S
7200
-
For fuels < W20
Pyrocontrol control system
PYR- …
7800
-
Required
