TY - GEN
T1 - Hakkuutähteen tiivistykseen perustuvan niputuslaitteiston kehittäminen
T2 - Puuenergian teknologiaohjelman vuosiseminaari
AU - Pressler, Fredrik
AU - Nousiainen, Ismo
PY - 2001
Y1 - 2001
N2 - Traditional logging residue purchase methods have based
either on chipping at the lot or in the roadside
storages. However, methods have been developed also for
long-distance transportation of complete logging
residues. In this case chipping would be carried out at
the power plant.
New methods, based on on-site chipping, are being
developed for purchase of logging residues. The bundling
equipment used in these purchase chains has been
developed in Sweden. The purchase chains under
development would enable the forest haulage and
long-distance transportation of logging residues by
present forest and long-distance transportation
equipment, and it would ease the storage of logging
residues.
The objective of the project was to develop, on the basis
of the idea of Biowatti Oy, a continuously operating
logging residue bundling device. Because the success of
compaction is the critical factor effecting on the
operation of the equipment, the project was carried out
in two stages. The objective of the first stage,
presented in this report, was to develop, construct and
test the compaction method.
Several modifications were made to the device during the
research. New tests were carried out after the
modifications in order to determine the operation of the
equipment, the compactness of the bundles, and
determination of the further development required. The
final version of the device was equipped with a feeding
table in which the feeding of logging residues occurred
by the aid of a lamellar chain track, equipped with shear
keys, and with a pressing roller.
Test runs showed that by using the continuous compression
method, developed in the project, it possible to obtain
the compression target (45 %). The capacity of the
bundler could not be tested properly because the test
runs were relatively short.
The power demand and capacity measurements of the bundler
will be carried out wider in the second part of the
project, as soon as the compression equipment has been
developed further.
On the basis of the preliminary experiences, the weak
point of the delivery chain of bundling has been e.g. the
high investment costs of the bundler, and relatively low
productivity of the device compared to investments.
However, the project created a new solution, by which it
is possible to improve the competitiveness of the
purchase chain and hence to promote the development of a
new purchase method for logging residues, supporting the
methods already in use in Finland.
AB - Traditional logging residue purchase methods have based
either on chipping at the lot or in the roadside
storages. However, methods have been developed also for
long-distance transportation of complete logging
residues. In this case chipping would be carried out at
the power plant.
New methods, based on on-site chipping, are being
developed for purchase of logging residues. The bundling
equipment used in these purchase chains has been
developed in Sweden. The purchase chains under
development would enable the forest haulage and
long-distance transportation of logging residues by
present forest and long-distance transportation
equipment, and it would ease the storage of logging
residues.
The objective of the project was to develop, on the basis
of the idea of Biowatti Oy, a continuously operating
logging residue bundling device. Because the success of
compaction is the critical factor effecting on the
operation of the equipment, the project was carried out
in two stages. The objective of the first stage,
presented in this report, was to develop, construct and
test the compaction method.
Several modifications were made to the device during the
research. New tests were carried out after the
modifications in order to determine the operation of the
equipment, the compactness of the bundles, and
determination of the further development required. The
final version of the device was equipped with a feeding
table in which the feeding of logging residues occurred
by the aid of a lamellar chain track, equipped with shear
keys, and with a pressing roller.
Test runs showed that by using the continuous compression
method, developed in the project, it possible to obtain
the compression target (45 %). The capacity of the
bundler could not be tested properly because the test
runs were relatively short.
The power demand and capacity measurements of the bundler
will be carried out wider in the second part of the
project, as soon as the compression equipment has been
developed further.
On the basis of the preliminary experiences, the weak
point of the delivery chain of bundling has been e.g. the
high investment costs of the bundler, and relatively low
productivity of the device compared to investments.
However, the project created a new solution, by which it
is possible to improve the competitiveness of the
purchase chain and hence to promote the development of a
new purchase method for logging residues, supporting the
methods already in use in Finland.
M3 - Conference article in proceedings
SN - 951-38-5722-0
T3 - VTT Symposium
SP - 178
EP - 179
BT - Puuenergian teknologiaohjelman vuosikirja 2001
PB - VTT Technical Research Centre of Finland
CY - Espoo
Y2 - 5 September 2001 through 6 September 2001
ER -