• Warmwaterboilers• Hotwaterboilers• Steamboilers• Hot-airsystems

HERZbiomass boilers100to20,000kW

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Competenceis our success ...

HERZFACTS: ● 22 companies ● Group headquarter in Austria ● Research & development in Austria ● Austrian owner ● 2.400 employees in over 85 countries ● 22 production sites

HERZArmaturenGmbH-ThecompanyFounded in 1896, HERZ has been continuously active in the market for more than 120 years. With 8 sites within Austria, another 14 in Europe and more than 2.400 employees at home and abroad, HERZ is the only Austrian manufacturer that produces equipment for the entire heating and installation industry and is one of the most important internationally.

HERZEnergietechnikGmbHHERZ Energietechnik employs more than 230 staff in production and sales. At the company sites

in Pinkafeld/Burgenland and Sebersdorf/Styria, there is state-of-the-art production as well as a research institute for new, innovative products. As a result, proven cooperations with

research and educational institutions can be intensified. Over the years, HERZ has established itself as a specialist in renewable energy systems. HERZ places a great importance on modern, cost-effective and environmentally friendly heating systems with the highest level of convenience and user-friendliness.

HERZfortheenvironmentAll HERZ biomass systems underbid the strictest emission regulations. Numerous environmental endorsements bear witness to this.

HERZquality Our HERZ design engineers are in permanent contact with acknowledged research institutions

in order to improve the very high standards continuously.

Competenceis our success ...

3assumes no liability for the information, subject to change without notice.

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C*

C*

Type Nominal capacity in kW (at W40)

Con

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RRF

SRF

-S

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TSRF

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Ste

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Combustion systems→ RRF

SRF

-S

SRF

-H

TSRF

v

Swarf

Saw dust

Shavings- millings

Chipboard,MDF

Virgin wood chips

Chip from landscape managment

Industrial wood chips

Combustion systems→ RRF

SRF

-S

SRF

-H

TSRF

Bark

Shredded demolition & packa-ging wood

Wood baes energy crops (chaffed)

Pomace, juice production resi-dues

Wood pellets

Industrial pellets

Turf pellets, agro-pellets

HERZ offers a wide variety of different combustion systems for different fuels. Below is an overview of the various systems.

We are happy to test your fuel in our test center and will advise you of your optimum combustion system.

HERZ offers boilers with a nominal capacity from 100 kW to produce warm and hotwater, saturated steam, superheated steam, hot air and hot gas as well as CHP. The biggest advantage of HERZ is total flexibility. True to the motto "Nothing is impossible" our engineers will seek to provide an optimum solution for your requirements.

WW = Warm water, HW = Hot water, Steam = Saturated steamSpecialsolutionsonrequest!

StandardFuels

Boilerrange

C available as containerized version. C* in standard container

RRK 9MRRK 8MRRK 7MRRK 6MRRK 5MRRK 4MRRK 2500-3000RRK 1800-2300RRK 1200-1650RRK 1000

RRK 640-850

RRK 400-600

RRK 200-350

RRK 130-250

RRK 80-175

RRK 10M

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Dischargesystems

WS-HorizontalSweepAuger

TransportsystemsHERZ offers different types of transport systems like Transport auger (TS), direct hydraulic ram (QFE), and chain conveyors (KKF).

These systems are suitable for the following max. size classes (acc. To OENORM EN 14961):

*)… Size class specifications and storage heights are for guidance only, as they depend on the actual kind of fuel and design variant. Beware of bridging which might occur on a storage height that exceeds twice the silo width.

• for granulated fuels up to P63* • For silos accessible from the bottom • Filling height up to 30m*

KA-SweepArmAgitator

• for granulated fuels up to P63* • Filling height up to 7m (depending on fuel bulk density)*

SBA-WalkingFloor

• for coarse and shredded fuels up to size class P120* (slivers up to 35cm long) with hydraulic ram infeed

• with transport auger up to P63*

SS-TaperedSweepAuger

• for granulated fuels up to P63* • For silos accessible from the bottom up to 7m ø • Filling height up to 20m*

PS-PelletExtractAuger

• with adjustable pressure relief device for rectangular silos• suitable for the transport and silo discharge of wood pellets

16 45 63 120 125max. particel size (P)

KKF

QFE

TS330

TS220

5assumes no liability for the information, subject to change without notice.

Combustionsystems

Combustion with hearth and rear grate section with hinged cast steel ele-ments. Integrated ash trays and optional de-ashing with auger. Completely refractory lined and stochiometrically designed primary and secondary combustion air zones.

max.fuelwatercontent up to M30max.fuelashcontent ≤ 1,5%Available from 100 kW Nominal capacity

Combustion with hydraulically or electro-mechanically operated grate, for combustion of dry fuels with high ash content. Fully automatic de-ashing of the combustion unit with ash scraper below grate and ash auger. Completely refractory lined combustion chamber. Stochiometrically designed primary and secondary combustion air zones. Alternatively with auger or hydraulic infeed.

max.fuelwatercontent M40 (more than M50 with preheater Luvo)max.fuelashcontent ≤ 7%Available from 150 kW nominal capacity

Combustion unit with hydraulically or electro-mechanically operated grate, for combustion of wet materials with high ash content. Fully automatic de-ashing of the combustion unit with ash scraper below grate and ash auger. Completely refractory lined and Stochiometrically designed primary and secondary combustion air zones. Alternatively with auger or hydraulic infeed.

max.fuelwatercontent M50 (more than M60 with preheater Luvo)max.fuelashcontent ≤ 7%Available from 150 kW nominal capacity

UnderfedHearthCombustionUnitRRF

MovingGrateCombustionUnitforDryFuelsTSRF

MovingGrateCombustionUnitSRF

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WarmandHotwaterSystems

Boilertubes best-practise chamfered and rootwelded, individually replaceable if required

Water-cooledBoilerJacket• absorbs the heat from the

combustion chamber (heat exchanger’s first pass)

• preheats the return flow via a duct along the boiler jacket

Anti-BurnbackProvisions• controlled negative pressure

inside the combustion unit• thermostatic sensor

intervening PLC routine• direct-acting thermostatic

water dousing system• certified power failure protected

damper or rotary air valve• monitored fuel barrier or 2-fold

mechanical separation

FeedingSystem• Stoker auger or hydraulic feed

system

MovingGrateBoilerfrom>150kW• industrial-scale solution

available for commercial applications

• fuel is evenly distributed and pre dried

• automatic de-ashing into a single ash receptacle powered by heavy-duty hydraulic or electro-mechanical unit GrateElement

made of high temperature cast chromium alloy, separately replaceable

PrimaryAirsupply,λ-controlled, with load-dependent distribution to combustion and burnout zone

AshScraperfor de-ashing of the entire boiler-base

AshAugerfor removal of ash into the central receptacle optional with ash lock or hydraulic de-ash-ram

IndustrialQuality• Wall thickness (standard):

Heat Exchanger 6 mm Boiler base 10 bzw. 5 mm

• heavy-duty cleaning doors and inspection apertures, functionally arranged

Gratescreenprevents ash-auger damage by falling debris

RadiationArchoptimized air flow, completely lined with refractory brickwork

Combustionchamber• stochiometrically designed

three zone system• completely lined with

refractory brickwork

SecondaryAirSupplyλ-controlled, with optimized arrangement of nozzles for superior turbulent flow

Refractorywith standard firebricks instead of manufacturer specific mouldedbricks:simple and cheap to replace

Heatexchangercleaning• unique high-velocity flue gas circulation

system• avoids emission peaks generated by

compressed air blasts• automatic de-ashing in preset intervals,

with cleaning effect over the entire tube length

• no interference with combustion process

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7assumes no liability for the information, subject to change without notice.

AirHeatExchanger

Water-cooledBoilerJacketcompletey lined with refractory brickwork λ-controlled combustion with primary and secondary air intake

BoilertubesConcentrically arranged around the Flame Tube Industrial quality with material thickness of 4.5mm

TurningChamberTurning of the flue gases out of the Flame Tube Integrated in Cleaning Door

ExhaustgasoutletIndividual orientation as required Transfer of the flue gases to a cleaning system

Freshairoutlet

FeedingSystemStoker auger or hydraulic feed system

Flametubelarge scaled flame tube, free on one sideoptimized flow velocity to reduce dust deposition

CleaningDoorOptimum access to the boiler tubes Space saving rotation and paning hinges

Air-to-airHeatExchangerLarge scaled single pass heat exchanger Proven counter flow principle to avoid contamination of the fresh air

ExhaustgasoutletIndividual orientation as required Transfer of the flue gases to a cleaning system

CombustionunitCombinable with every HERZ combustion system depending on the fuel

Freshairpre-heatingPre-heating of the fresh air via water-to-air heat exchanger. Heat of the burning chamber is used to pre-heat the fresh air, optimising the efficency

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SteamBoiler

Saturatedsteamboiler

Available from nominal capacity of 200 kW upwards, combinable with all HERZ combustion systems, for the production of saturated steam. Working pressure up to 22 barG available, higher pressure on demand.

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Boilertubes

Refractory

Heatexchangercleaning

Water-cooledboilerjacket

SecondaryAirSupply

RadiationArch

Gratescreen

Combustionchamber

Anti-BurnbackProvisions

Infeed

Movinggrateboiler>150kW

PrimaryAirsupply

Industrialquality

Ashauger

Ashscraper

Grateelement

Steamdome(externalorintegrated)

HotGasGenerator

Available from nominal capacity of 200 kW upwards, combinable with all HERZ combustion systems. For the production of hot flue gases, optional with flow optimized mixing chamber.

HERZcustomer-oriented...

Consulting Planning Manufacturing

Assembling Commissioning SupportDelivery

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Competenceisoursuccess...

AutomaticHighVelocityCleaningSystemHV

CapacityandCombustionControlCVP

3DVisualization

FlueGasRecirculation

With the HV system the cleaned flue gases (after passing the cyclone separator) are blown back into the heat exchanger through a non-return flap at high speeds to clean the heat exchanger tubes.

Highvelocitycleaningatpresetintervalswithoutinterferingwithnormaloperation.

• Prevents dust deposition over the whole length of the heat exchanger pipes, maintaining a constant high efficiency

• Reduces maintenance to 1-2 basic procedures per year

• Protects against boiler corrosion

Depending on the temperature in the combustion chamber the recirculation system adds a regulated amount of flue gas to the combustion air. Becauseofthegreatervolumeoffluegasinthecombustionchamber,moreheatisdissipated

from here towards the heatexchanger.

Lower temperatures alsoincrease the lifespan of

the refractory andthegrate.

The flue gas recirculation system is particularly recommended for fuels with either a high calorific value, low ash fusion point, or a high nitrogen content.

Features a fully modulating computer control that permanently assesses the actual load, adjusts the fuel feed accordingly and matches it with the continuously variable air supply.

• Reacts dynamically to changes in the combustion process through the Lambda O2 control

• Variable air volumes are automatically compensated by the integrated negative pressure control

• Speed-controlled fans minimise electric power consumption

• Provides an optimal efficiency over the entire output range of the boiler.

The innovative HERZ3DVisualization is created from your individual layout plan.

Individually designed setting windows and the included data logging, and also the possibility to integrate the HERZ combustion chamber camera completed the package.

If an Internet connection is available it ispossibletologintotheboilercontrolunitandmakeadjustmentsatanytimeyouwant.

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11assumes no liability for the information, subject to change without notice.

Know-How&Reliability

HighOverallEfficiencyAcrosstheOutputRangeHERZboilersachieveefficiencyratingsofover92percent1.• The CVP control package gives fully modulating capacity control from 20-100%• Speed-control on all fans minimises the electric power consumption• The Lambda O2 regulation improves efficiency and brings out the most of your fuel• High quality engineering with a minimum of maintenance required provides for high availability

1)…audit report A-1211-1/18d-06, NUA Umweltanalytik GmbH

FlueGasCleaning

To comply with the legal emission limits, special filters have to be used. HERZ offers optimized filtration systems for your needs.

Electrostatic precipitators Metal Sleeve filters

References

Boiler type: RRK 200-350 u. RRK 1000 | Capacity: 300kW u. 1200 kW

Boiler type: RRK 200-350 TSRF | Capacity: 300kW

Boiler type: 1200-1650 SRF | Capacity: 1600kW

Boiler type: 6-7M TSRF | Capacity: 7000kW

Boiler type: RRK 400-600 RRF | Capacity: 500kW

Boiler type: RRK 400-600 SRF | Capacity: 500kW

Boiler type: 4x RRK 200-350 and 2x RRK 200-600 SRF

Boiler type: 2500-3000 SRF | Capacity: 3000kW

Boiler type: DK 640-850 SRF | Capacity: 840kW / Dampf ca. 1,3to/hBoiler type: DK 1800-2300 | Capacity: 1950kW / Dampf ca. 3,3to/h

LambdaO2RegulationUses the exhaust O2 level as an efficient indicator for complete combustion:• Reacts to fuel variations by automatically adjusting the air intake and/or fuel supply• Provides a stable combustion without emissions peaks even where fuel quality varies.

Business partners in...

d02-

2016

HERZ biomass systems fall below the strictest emission regulations.

Your partner:

HERZ Energietechnik GmbH Herzstraße 1, 7423 PinkafeldÖsterreich/AustriaTel.: +43(0)3357/42840-0Fax: +43(0)3357/42840-190Mail: office-energie@herz.euInternet: www.herz.eu

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