EP3023722A1 - Installation transportable pour le séchage de copeaux de bois - Google Patents

Installation transportable pour le séchage de copeaux de bois Download PDF

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Publication number
EP3023722A1
EP3023722A1 EP14382469.6A EP14382469A EP3023722A1 EP 3023722 A1 EP3023722 A1 EP 3023722A1 EP 14382469 A EP14382469 A EP 14382469A EP 3023722 A1 EP3023722 A1 EP 3023722A1
Authority
EP
European Patent Office
Prior art keywords
hot air
fuel
drying installation
mobile chip
chip drying
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP14382469.6A
Other languages
German (de)
English (en)
Inventor
Fernando Bausela Sánchez
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Df Mompresa SAU
Original Assignee
Df Mompresa SAU
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Df Mompresa SAU filed Critical Df Mompresa SAU
Priority to EP14382469.6A priority Critical patent/EP3023722A1/fr
Publication of EP3023722A1 publication Critical patent/EP3023722A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B23/00—Heating arrangements
    • F26B23/02—Heating arrangements using combustion heating
    • F26B23/028—Heating arrangements using combustion heating using solid fuel; burning the dried product
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B11/00—Machines or apparatus for drying solid materials or objects with movement which is non-progressive
    • F26B11/02—Machines or apparatus for drying solid materials or objects with movement which is non-progressive in moving drums or other mainly-closed receptacles
    • F26B11/04—Machines or apparatus for drying solid materials or objects with movement which is non-progressive in moving drums or other mainly-closed receptacles rotating about a horizontal or slightly-inclined axis
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B2200/00—Drying processes and machines for solid materials characterised by the specific requirements of the drying good
    • F26B2200/24—Wood particles, e.g. shavings, cuttings, saw dust

Definitions

  • the aim of the present invention is to register a mobile chip drying installation, which includes significant innovations and advantages in comparison to the techniques used to date.
  • the invention proposes the development of a mobile chip drying installation, which, given its specific arrangement, makes it possible to dry wood chips known about, which are to be dried prior to being transported, in a more advantageous and effective way than in the technical solutions already known about.
  • the present invention was developed with the aim of providing a mobile chip drying installation, suitable for drying a mixture of wood chips, and is essentially characterised by the fact that it uses the chips themselves as fuel for drying, and in that it comprises a hot air generator, a trommel dryer, a fine particle separator system and a control system, the control system being linked simultaneously in communication data with the hot air generator, the trommel dryer and the auxiliary separator system, the hot air generator and the trommel dryer being linked and installed with one another, such that hot air coming out of the hot air generator circulates and flows through the inside of the trommel dryer; the trommel dryer and the fine particle separator system being linked and installed with one another, such that the flow of hot air coming out of the trommel dryer circulates through the auxiliary separator system; the trommel dryer being provided with input means for the chips to be dried and output means for the dry chips inside the same trommel dryer to come out of.
  • the hot air generator is inserted into a container.
  • the trommel dryer is inserted into a container.
  • the fine particle separator system is inserted into a container.
  • the hot air generator comprises a fuel storage silo, fuel extraction means for extracting fuel from the silo, a biomass furnace and fuel transfer means, for transferring the fuel to the biomass furnace.
  • the biomass furnace comprises a grate.
  • the grate vibrates.
  • the trommel dryer comprises a tubular structure, which rotates around its own axial axis, with an input end, provided with input means through which to insert the chips to be dried and another output end, provided with output means for the dry chips to come out of.
  • the fine particle separator system comprises a cyclone, an extractor and an extraction chimney.
  • the fuel extraction means for extracting fuel from the silo comprise a leaf spring extractor.
  • the fuel transfer means comprise a drive screw.
  • the input means comprise a conveyor belt.
  • the outlet means comprise an unloading belt.
  • An advantageous technical solution for drying wood chips is achieved as a result of the present invention, with the ability to be moved and easily transported, which is simple and quick to mount, with suitable environmentally friendly energy consumption and a low maintenance costs, given that an additional fuel source is not required, since it uses the wood chips themselves as fuel for drying.
  • Figure 1 Is a schematic perspective view of a preferred embodiment of the mobile chip drying installation of the present invention.
  • the mobile chip drying installation of the present invention is designed for drying wood chips before they are transported.
  • the mobile chip drying installation comprises a hot air generator 1, a trommel dryer 2, a fine particle separator system 3 and a control system 4.
  • the control system 4 is linked in data communication and is able to simultaneously govern alongside the hot air generator 1, the trommel dryer 2 and the fine particle separator system 3, in order to thus be controlled by the user.
  • Said control system receives and processes data from the hot air generator 1, the trommel dryer 2 and the fine particle separator system 3, and thus governs them in a suitable way, in order for them to undergo the drying process.
  • the hot air generator 1 is one of the fundamental parts of the installation, being responsible for supplying the energy needed to raise the temperature of the air subsequently introduced into the trommel dryer 2, in order to dry the wood chips.
  • the hot air generator 1 comprises a storage silo 11 for storing the fuel to be used (i.e. the dry wood chips themselves), a number of fuel extraction means for extracting fuel from the silo 11, a biomass furnace 12 and a number of fuel transfer means for transferring fuel to the biomass furnace 12.
  • the fuel to be used i.e. the dry wood chips themselves
  • a number of fuel extraction means for extracting fuel from the silo 11
  • a biomass furnace 12 i.e. the dry wood chips themselves
  • fuel transfer means for transferring fuel to the biomass furnace 12.
  • the biomass furnace 12 of the hot air generator 1 In order to set the process into motion, the biomass furnace 12 of the hot air generator 1 must be activated.
  • fuel is fed into the biomass furnace 12 from the silo 11 itself, through the fuel extraction means 11 for extracting fuel from the silo 11.
  • the fuel extraction means for extracting fuel from the silo 11 comprise a leaf spring extractor 13, the fuel constituting dry wood chips.
  • the silo 11 has a built-in alarm, which is activated when the level of fuel stored inside the silo 11 itself falls below a predefined safety level. The operator is then warned that the silo 11 needs to be refilled with fuel, in order to prevent fuel that feeds the biomass furnace 12 from quickly running out.
  • Fuel is extracted from the silo 11 automatically, after being activated by the control system 4, on demand of the biomass furnace 12, via fuel extraction means for extracting fuel from the silo, which in this embodiment, comprise the spring leaf extractor 13.
  • the fuel is then introduced into the biomass furnace 12 via fuel transfer means for transferring fuel from the silo 11, which in this embodiment, comprise a drive screw 14, with a rotary valve that dispenses the fuel onto grates 121 in the biomass furnace 12.
  • the biomass furnace 12 is provided with combustion fans (not shown in the drawing), which inject air and enable the complete combustion with maximum use of the calorific value of the fuel.
  • combustion fans not shown in the drawing
  • the special design with vibrating grate 121 technology ensures the fuel and combustion agent are better mixed and improves distribution in the combustion area, in order to increase the performance of the of the hot air generator 1 and increase the range of usable fuel conditions (enabling high performance even with fuels with humidities of up to 50%).
  • the grate 121 may be of other varieties or may not vibrate.
  • the tiered grate 121 is equipped with vibrating sections, in order to achieve controlled distribution of the fuel.
  • the speed at which the sections move is adjusted for each fuel from the control system 4 in order to achieve a process with optimal combustion. In turn, it facilitates better cleaning of the ashes along the entire surface of the biomass furnace 12, thus ensuring that the work area is always completely suitable.
  • the primary combustion air is supplied through a number of holes (not shown in the drawing) between the grate 121 in sub-areas differentiated according to the combustion stages described previously.
  • the secondary combustion air is supplied though a number of holes (not shown in the drawings) in the walls above the portion of the grate 121. Both the primary and secondary air are adjusted individually, in order to achieve optimal combustion.
  • the trommel dryer 2 is the component of the installation of the invention in which the wood chips are dried. It is made up of a tubular structure that rotates around its own axial axis. The hot air from the hot air generator 1 and the humid chips are simultaneously introduced at one end 21 (or wet product inlet) and the dry chips and used air are extracted from the other end 22 (the dry product outlet).
  • the tubular structure of the trommel dryer 2 rotates around its own axial axis, turning the chips to be dried over, over the flow of hot air, in turn causing it to move forwards, in order to increase the contact between the wood chips and the hot air, thus facilitating the removal of humidity.
  • the product to be dried i.e. the wood chips, which are piled up close to the installation of the invention, is arranged and introduced via input means for the product to be dried at one of the ends 21 (the wet product inlet) of the trommel dryer 2.
  • the input means comprise a conveyor belt 23, which feeds into the trommel dryer 2.
  • This conveyor belt 23 drives and introduces it into one of the ends 21 (the wet product inlet) of the trommel dryer 2 unit, through which the combustion gasses from the hot air generator 1 previously described enter simultaneously.
  • the product to be dried travels through the trommel dryer 2 by means of the rotational movement of the same and eliminates the amount of water required in the process.
  • the interior design thereof means that the turning blades are constantly cutting through the product to be dried, thus preventing clumps from forming, which inhibit the drying action, in addition to enabling optimal performance.
  • the blade advance system as well as the angle and fixing brackets, are designed to offer, alongside the revolutions and angle of the trommel dryer 2, the greatest drying performance of the product to be dried.
  • the outlet means comprise a discharge conveyor 24.
  • the used air coming out of the trommel dryer 3 then passes through a fine particle separator system 3, in which the exhaust gasses are purified, by pouring the fine particles suspended therein, before being released into the atmosphere.
  • the extractor 32 is responsible for inducing the circulation of air at the outlet of the trommel dryer 2, in order to cross the cyclone 31 and release the air through the chimney 33.
  • the hot air generator 1 and the trommel dryer 2 are linked and installed with one another, such that the air from the hot air generator 1 and the wood chips inserted simultaneously into the trommel dryer 2 circulate and flow together through the trommel dryer 2.
  • the hot air from the hot air generator 1 is introduced through a duct in the trommel dryer 2.
  • the wood chips to be dried are inserted into the upper portion of the end 21 (or wet product inlet) of the trommel dryer 2 by means of the conveyor belt 23.
  • the hot air and the wood chips be dried immediately come into contact and are mixed inside the trommel dryer 2, therefore causing the water contained in the wood chips to evaporate, in turn reducing the humidity therein.
  • the hot air becomes more humid and colder in temperature.
  • the trommel dryer 2 continues to rotate and the wood chips move forwards until they exit through the end 22 (or dry product outlet) of the trommel dryer 2.
  • the trommel dryer 2 releases the now dry wood chips using the discharge conveyor 24 in order to store the dry chips in piles 25.
  • the trommel dryer 2 and the fine particle sepataor system 3 are linked and installed with one another, such that the outlet flow of hot air coming out of the trommel dryer 2 passes and circulates through the fine particle separator system 3.
  • the fine particle separator system 3 separates any possible remaining dry wood chips found in the hot air out the outlet of the trommel dryer 2, so that they may also be used, preventing them from being released into the atmosphere.
  • the mobile chip drying installation of the present invention therefore provides considerable advantages over conventional systems already known about.
  • the fine particle separator system 3 may be inserted into a container whilst being transported and removed during the drying process.
  • the ground does not require any kind of special preparation. It is sufficient for the ground to be flat and have a minimum resistance of 2 kg/cm 2 .
  • the system is automatic, as it is fed by the biomass to be dried itself, it thus being able to work outdoors, with simple, cheap maintenance.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Solid Fuels And Fuel-Associated Substances (AREA)
EP14382469.6A 2014-11-24 2014-11-24 Installation transportable pour le séchage de copeaux de bois Withdrawn EP3023722A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP14382469.6A EP3023722A1 (fr) 2014-11-24 2014-11-24 Installation transportable pour le séchage de copeaux de bois

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP14382469.6A EP3023722A1 (fr) 2014-11-24 2014-11-24 Installation transportable pour le séchage de copeaux de bois

Publications (1)

Publication Number Publication Date
EP3023722A1 true EP3023722A1 (fr) 2016-05-25

Family

ID=52011122

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14382469.6A Withdrawn EP3023722A1 (fr) 2014-11-24 2014-11-24 Installation transportable pour le séchage de copeaux de bois

Country Status (1)

Country Link
EP (1) EP3023722A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106440704A (zh) * 2016-11-20 2017-02-22 广西大学 一种田地秸秆燃烧粮食烘干装置
ES2696983A1 (es) * 2017-07-21 2019-01-21 Proying Xxi Ingenieria S L U Instalación para la reducción de residuos procedentes de los humos o gases de secado de residuos vegetales, y procedimiento llevado a cabo por dicha instalación.
CN110073159A (zh) * 2016-12-13 2019-07-30 Imal有限责任公司 用于干燥松散木质材料的设备

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4431405A (en) * 1982-02-23 1984-02-14 Down River International, Inc. Gas pollution control apparatus and method and wood drying system employing same
DE3534260A1 (de) * 1985-09-26 1987-04-02 Plonka Dohren Marianne Verfahren zum thermischen trocknen temperaturempfindlicher gueter in drehtrommeln sowie vorrichtungen zur durchfuehrung dieses verfahrens
US20110305897A1 (en) * 2009-03-10 2011-12-15 Kronotec Ag Wood chip drying system for drying wood chip and associated method for drying wood chip

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4431405A (en) * 1982-02-23 1984-02-14 Down River International, Inc. Gas pollution control apparatus and method and wood drying system employing same
DE3534260A1 (de) * 1985-09-26 1987-04-02 Plonka Dohren Marianne Verfahren zum thermischen trocknen temperaturempfindlicher gueter in drehtrommeln sowie vorrichtungen zur durchfuehrung dieses verfahrens
US20110305897A1 (en) * 2009-03-10 2011-12-15 Kronotec Ag Wood chip drying system for drying wood chip and associated method for drying wood chip

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106440704A (zh) * 2016-11-20 2017-02-22 广西大学 一种田地秸秆燃烧粮食烘干装置
CN110073159A (zh) * 2016-12-13 2019-07-30 Imal有限责任公司 用于干燥松散木质材料的设备
ES2696983A1 (es) * 2017-07-21 2019-01-21 Proying Xxi Ingenieria S L U Instalación para la reducción de residuos procedentes de los humos o gases de secado de residuos vegetales, y procedimiento llevado a cabo por dicha instalación.

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