Reconstruction of K4 Boiler for Biomass Combustion
Martinská teplárenská, a.s.:The company Martinská teplárenská (MT, a.s.) is a heat source which produces heat together with electric energy, and supplies it into the central heating supply system.
Installed performance of main heat equipment:Boilers Performance (MWth)
K4 (fuel 100% wood chips or 100% natural gas) 60.0
K5 (fuel 100% brown coal or 100% natural gas) 60.0
K6 (fuel brown coal, stabilization with natural gas to 30%) 119.0
K7 (fuel brown coal, stabilization with natural gas to 30%) 119.0
In total 358.0
Annual electric power production: approx. 60 000 MWh
Annual heat supply to the distribution system: 1 116 797 GJ
Reconstruction of K4 Boiler for Biomass Combustion
Reason: Reduction of emissions, SO2 primarily - harmonization with legislation
- year 2003 design intent 2004 feasibility study 2005 project for building permit 2005 application for financing by the
Structural Funds of the Ministry of Environment of the Slovak Republic
- rejected two times 2008 proposed financing from the sale of
CO2 saving and privileged price of electric power produced from renewable
energy sources 2010 completion and delivery of the
construction into use
Reconstruction of K4 Boiler for Biomass Combustion
Reconstruction of K4 Boiler for Biomass
Combustion
Division of the Project:
A boiler reconstruction
B biomass fuel management
VO ensured by means of the journal of European Union
ZOD for reconstruction of the boiler II.Q./2009 –
Metso Power OY
ZOD for biomass fuel management IV.Q./2009 –
Váhostav-SK, a.s.
Reconstruction of K4 Boiler for Biomass
Combustion
K4 before reconstruction:
75 t/hr., 60 MW, 450 °C, 5.7 MPa
high-pressure
steam boiler fuel: brown coal,
powder combustion 100% performance also
with natural gas
Reconstruction of K4 Boiler for Biomass
Combustion
Heating plant thermal diagram.
K4 after reconstruction
parameters unchanged, the only change
concerns the fuel, brown coal is to be
replaced by wood chips.
the boiler is reconstructed for fluid
combustion in bubbling fluid layer
Stoker HYBEX
Reconstruction of K4 Boiler for Biomass Combustion
Operation of the boiler K4:
throughout the summer season transitional period up to maximum performance in the winter season (January, February) with a big
coal boiler
expected consumption 60-70 th. tons of wood chips
= compensation for 1/3 of coal basis for delivery – long-term contract with the state
enterprise Lesy SR, š.p.
Reconstruction of K4 Boiler for Biomass Combustion
Reconstruction of K4 Boiler for Biomass
Combustion
BFB CFB
Reconstruction of K4 Boiler for Biomass Combustion
Reconstruction of K4 Boiler for Biomass
Combustion
Emissions:
before after(mg/m3) (mg/m3)
TZL 40 30 *
SO2 1700 200
NOx 600 400
CO 250 250
TOC 50
* /polluting solid substances/
** /total organic carbon/
• The Project does not solve TZL, the adjustment shall be proposed in line with the actual state
• CO2 from biomass is not included, it is neutral
Reconstruction of K4 Boiler for Biomass Combustion
Reconstruction of K4 Boiler for Biomass
Combustion
Disassembly of combustion chamberDisassembly of combustion chamber
Reconstruction of K4 Boiler for Biomass
Combustion
Disassembly of steam superheaterDisassembly of steam superheater
Reconstruction of K4 Boiler for Biomass
Combustion
Disassembly of drying shaftsDisassembly of drying shafts
Reconstruction of K4 Boiler for Biomass
Combustion
DisassemblyDisassembly
Reconstruction of K4 Boiler for Biomass
Combustion
Foundations for biomass containerFoundations for biomass container
Area ready for storing place – before the Area ready for storing place – before the action commencementaction commencement
Reconstruction of K4 Boiler for Biomass Combustion
Reconstruction of K4 Boiler for Biomass
Combustion
Area for storing place – before completionArea for storing place – before completion
Reconstruction of K4 Boiler for Biomass
Combustion
Area for access roadArea for access road
Reconstruction of K4 Boiler for Biomass
Combustion
Works on the new entrance for bringing wood chips at the Works on the new entrance for bringing wood chips at the beginningbeginning
Reconstruction of K4 Boiler for Biomass
Combustion
Works on the new entrance for bringing wood chips before Works on the new entrance for bringing wood chips before completioncompletion
Reconstruction of K4 Boiler for Biomass
Combustion
Works on the new entrance for bringing wood chips before Works on the new entrance for bringing wood chips before completioncompletion
Reconstruction of K4 Boiler for Biomass
Combustion
Aerial view on the construction site before completionAerial view on the construction site before completion
Completion of the reconstruction by April 30, 2010Completion of the reconstruction by April 30, 2010
Elaborated by: Elaborated by: Ing. Miroslav Kadlec Ing. Miroslav Kadlec Trade, Development and Strategy Manager Trade, Development and Strategy Manager
Martinská teplárenská, a.s., www.mtas.skMartinská teplárenská, a.s., www.mtas.sk
e-mail: [email protected], e-mail: [email protected],
Tel. No. +421 905567723Tel. No. +421 905567723
In Martin November 18, 2010In Martin November 18, 2010
Thank you for your Thank you for your attention.attention.
Reconstruction of K4 Boiler for Biomass Combustion