OA11405A

OA11405A - A drying device.

Info

Publication number: OA11405A
Application number: OA1200000122A
Authority: OA
Inventors: Joze Plestenjak
Original assignee: Joze Plestenjak
Priority date: 1997-11-04
Filing date: 2000-04-27
Publication date: 2004-04-08
Also published as: IS5459A; EE04246B1; CA2308245A1; EP1029211B1; JP3955729B2; NO20002349D0; IL135930A0; AU6531798A; CN1277670A; TR200001236T2; CZ298942B6; AU765744B2; BG63980B1; HU224255B1; HUP0100543A2; DK1029211T3; WO1999023430A1; SK6312000A3; NO325868B1; KR100481454B1

Abstract

The aim of the present invention is to create an efficient energy rational and consequently economical drying device, particularly the drying compartment unit, which could be used for drying processes for all wood products regardless to dimensions, with the ability of a controlled process of humid transfer from wood in specific atmospheric conditions by travel air, to achieve improvement of quality of drying wood, which include known drying effects, by the construction of the kiln volume proportional to fulfil dimensional and transport standards of transport containers, thus making possible the drying device being exploited by end user as a stationary or mobile type.

Description

011405 1 A drying device 5 The invention relates to a drying device, particulary for drying wood and semi-products of wood Iike veneer or sawn wood as well as other products. A groving tree as a woody perennial plant contains relatively huge amounts ofio moisture content warying from one kind to another which stays in the tree after being eut down. As it is known wood contains capillaries in cells thatcontain free liquid and absorbed moleculas of water called moisture contentwhich must be lowered to a certain ievel to satisfy needs of industrial use. Forthat reason, wood has to be properly treated, namely dried to a certain value of 15 acceptable end moisture distribution content in a way to prevent occuring of ail kinds of drying defects. The drying process is a mayor factor in économietenus.

Wood could be dried under naturel circumstances in the open - air drying if 20 wood climate relation conditions are good enough and consequently generating acceptable quality of dried sawn wood. It has to be considered thatair drying of wood is a long term process which could extend into years.When finally wood is dried it needs proper storage conditions that includenaturel circulation of dry warm air and other terms of planning. It has to be 25 considered that absorbed water in the wood can emerge and evapoprate with the help of sourrounding air flow only in case if the surface is not covered byrain fall water, snow or other substances. Influencing on air drying tehnology 011405 2 by restacking with ventilation abilities do help in minor values with theconstant risk of wood being attacked by mould, microoorganismus, fungi,insects including uneven drying that can worsen quality of wood expresedwith other terms conceming its quality. There is always a potcntial problem ofshape deformations that can emerge because of naturel air - dryingunpredictable situations that cannot be prevented by any préventive processcontrol tehnology or monitoring of any kind. Moisture distribution content inwood is by using technology of drying by air after a certain period of timedepending on climate conditions what means that time variation is présent inplanning emerging other problems usually leading to higher costs, too muchrejections of quality assurance and alike. On the other hand there are alsosome other efects of such a technology like low energy consumption, hugedrying areas, storage departments, safety procotions. There were someexpriments executed to shorten air - drying process by engaging axial fans,but there are too many other paramétrés like relative humidity and others onwhich axial fans cannot influence.

With the intention to reduce drying time in the aspect of cost, quality and timewere developed drying devices of different kinds, which can be distinguishedby a technological approach in a following manner The first type is acompartment type and tunnel kiln type. Both known types of drying devicescan be characterized as stationaiy types. By the first type of drying devices thewood is placed in avaliable compartment which has the ability of generatingdifferent physical conditions like: température, humidity, air flow capacity andalike, with the intention of proceeding of the drying process. By the secondtype of drying devices the wood is transported with the help of horizontaltransport unit through the drying device where it is sequently processed underdifferent physical conditions, mainly for the purposes of gradualy executingthe drying process. Compartment type drying devices are cheaper, but withlower production rate in comparison with the tunnel kiln type drying devices.where investment costs are relatively high. 011405 3

The aiready known types of diying devices hâve certain disadvantages whichwill be explained in details as follows including the decisions of greatinvestment cost and setting up difficulties in aspect of economy factors.

The technology processes used nowadays by drying the wood are performedeither by low températures between 15 and 45eC or by medium températuresbetween 45 and 90°C or also by high températures between 90 and 130°Cwith the posibility of achieving above specificd températures e.g. by meansdielectrical, convectional, conduction or radiation principles.

By certain types of drying devices the wood is put into compartmcnt by meansof suitable transport carnages. With the ventilators placed on the ceiling orrarely on other locations an air flow is created which is in some cases blowntransversely, yet by others the air flow is lead horizontaly and transversely andstill in other versions the air is lead longitudinaly.

By ail these known drying devices the transport units are constructed in amanner and with such dimensions that enable loading as great quantifies ofwood as possible in the kiln volume. The wood is stacked by along ventilationin a way that air flow is possible at least in one horizontal plane. A certaincompromise has to be achieved with the considération of dimensions of the airgap that is neccessaiy for air flow and the amount of wood in the kiln. The hotair is then blown through the air gaps in order to fasten up the intensity ofdrying. When the hot air gets in contact with the wood containing highmoisture level it absorbs it to its highest possible value, what causes enablingof absorption of moisture, that is still présent deeper in the pile. Consequentlythat means that ventilators create enough strong air flow yet with the highestmoisture level possible what means only a lot of waste of energy. Because ofhigh moisture level in the air it is veiy likely that it condenses on cooler placessuch as walls and other equipment causing damage. The condensed liquid thatstays in the kiln volume efects harmfull on it as well as to the drying process. 011405 4

As noted in the patent aplication EP 0 170 648 Al which is intended toexecute one of the latest drying technologies the compartment has warm-insulated walls. The sawn wood is being stacked by longitudinaly ventilationin the kiln volume. In the drying device there is installed a ventilator which 5 enables air flow passing through a heating register then continuing on trough stacked wood to the cooling register where the air flow is led in a way ofrepeating the same loop. In the area of heating register the air is warmed upthen as passing trough the stacked wood it picks up moisture which is thenreleased by passing trough the colling register to the warming register. Such a 10 combination is likely to create condensate if fresh sawn wood is processed but is quite suitable for wood with iow moisture volume - the final touch -before being used up by industry.

If desired that by means of satured air generated by drying process of stacked 15 wood as highest as possible quantity of moisture should be departed from compartment, the air must be heated. The disposai of great amounts ofsaturated air is combined with great looscs of heat used before as heating air.Energy yield by using this technology of drying wood is low. 20 Except of the above mentioned drying technologies also a vacuum drying technology is described in the PCT/DK87/00012 and WO 87/04779, wheree.g. intensivity of drying process could be monitored in order to avoid dryingdefects. The devices with applied vacuum technology are very sensitive inmantaining proper vacuum conditions and are more suitable for drying 25 processes for wood containing lower values of moisture what means that other drying technology for eliminating the majority of moisture has to be usedtherebefore.

By ail these known solutions it can be summarized that ail of them hâve 30 certain imperfections, e.g. relatively low energy yield being unacceptable for 011405 5 global economy, or high requirements in respect of the space consomption,highly dépendance on power sources, a high probability of diying defects,very small or no adaptable abilities and are moreover built as a stationary typewith drying capacities that dictate the amounts of drying wood and 5 technology.

According to the invention, the drying unit is provided by an aerated housing,the inner area of which is connected by the circumferential area by means ofexhausting conduits and aerating conduits. Thus, in accordance with the 10 principals of the invention, the new drying device is creatcd on the basis of many ventilation air Systems containing different type of airflow intake as wellas disposai air possibilities that are fixed to the drying device. Such a device isequipped by a heat condensation device containing a heating unit, acondensation unit and a ventilator. The drying device has a drying kiln in 15 which with the help of transporting carnage is placed. wood intended to be dried. The drying process is executed in the drying kiln by enforcedcirculating air. At least one wall of the kiln compartment is equipped bysuitable air shafts for aerating or exhausting fonctions as an integrated unit ofthe drying device including the System vent which has the fonction of air pre- 20 orientation in any time required during the drying process in coinsistence with air deflector placed above the loading volume integrated in the kilncompartment by the heat condensation unit, which extends from the oppositesidc of the drying compartment and ends at the bottom of the kiln cmpartment.The air deflector by the heat condensation device has mounted at least one 25 vent, which could be self-adjustable and an integrated unit consisting of a partition wall and the top of kiln volume, which in combination with the topof the kiln compartment présents a tunnel-shaped air shaft in which theventilation System is placed. The whole above mentioned section is called anair deflector. The already mentioned air shafts start on the micro climate vent 30 mounted on the top of the kiln compartment, then they are lead mainly along the side wall and are ended within the space of the kiln volume. 011405 6

In the kiln volume there is arranged at least one ventilation unit with theability of angular adjustment with the posibility of positioning it either in theon- or in the off-state function. With the microclimate went in closed positionconnected with the air shafts, ranging from the top of the kiln compartment 5 ending in the kiln volume are generated conditions for creating an internai air circulation, but in open position the internai circulation gets in contact againwith the help of the shafts with extemal athmosphere with paralell air flow ofmostured air blown out of the kiln volume in the athmosphere and sucked infresh dry air in the tunnel shaped air shaft due to the pressure différence. Inio the tunnel-shaped air shaft is recommended an instalation of heating éléments.

In accordance with the invention is the unit for stacking wood or otherProducts intended for drying also equiped with accessories that enable verticaland horizontal stacking and longitudinal ventilation. The accessories also 15 enable vertical positioning of dominant surfaces of the drying wood. The distance holders that enable stacking of wood are placed vertically inrelationship to each another and are shorter than the vertical supports of theunit. The said units can be mounted one on each other. The botton carnagecan be equiped by transport wheels. In accordance with the présent solution in 20 the kiln compartment space close to the micro climate vent is placed an UV- emittor meant for emitting ultra-violet rays to the moisture contained in the airwith the intention of eliminating the posibility of development culters likemould, fiingi and other microorganismus. 25 In accordance with the principals of the invention is the new drying device equiped with magnets assembled in the kiln compartment in bipolararrangement what means that magnetization treatment influences on ail theprocesses - Chemical, phyisical and biological. 30 According to the invention, the drying device also comprises a heating condensation device with a ventilator assembled in the opening of partition 011405 7 wall. The heating condensation device is designed in a way of iregularmedium flow linking to increase condensation efect as well as heatingémission. 5 Now, the invention will be described in more detail on the basis of an embodiment as shown in the accompanied drawings, where

Fig. 1 is a longitudinal cross-section of the drying device in a vertical plane;Fig. 2 is a transversal cross-section of the device in the vertical plane; 10 Fig-3 is a longitudinal cross-section of the device in a horizontal plane;

Fig. 4 is a longitudinal cross-section of the device in the vertical plane, however during its operation mode comprising combination ofdehumidification diying and convection drying with the wood stackedto enable ventilation in the longitudinal direction; 15 Fig. 5 is a transversal cross-sestion of thç device according to Fig. 5 in its vertical plane;

Fig. 6 is a longitudinal cross-section of the device according to Fig. 1 - 3,however during its further operation mode suitable for acceleratedprocess of naturel air drying, again with the stacked wood; 20 Fig. 7 is a transversal cross-section of the drying device according to Fig. 5;

Fig. 8 shows a condesation unit of the device according to the invention; andFig. 9 shows a unit for stacking wood also comprised by the device according to the invention. 25 A drying device shown in Fig. 1 - 3 is in generally designed for drying wood and other materials with the kiln compartment 1 constructed as to fulfîllstandards and other requirements known in the field of transport wherestandard containers are used for ail known transport posibilities. Theproportions of the kiln compartment 1 hâve certain advatages comparing with 30 ail till now known drying devices as well as certain limitations, which may be however overcome by the solution according to the invention. In such a 011405 8 manner it is possible to exploit the drying device by the user either e.g. as astationary or a mobile device with extremely quick and simple installation toappropriate location. 5 At least one of the side walls 11, 12, 13, 14 of the kiln compartment 1, namely in this case the longitudinal wall 13, is equiped by a suitable door 131,allowing e.g. to enter the kiln compartment 1 and being e.g. intended forPersonal access. On the other hand, by the shown embodiment the wall 11 isequipped by a lifting loading door, in which is in this case fixed at least one 10 System vent 111, which is otherwise arranged in the area of the said wall 11.

In accordance with the general idea of the invention will the rôle of the Systemvent 111 be explained in more detail as follows.

On the opposite side of the kiln compartment 1, namely on the top of the wall 15 12, there are fixed suitable integrated micro climate vents 1211 equiped with appropriate exaust funnels 1210,1220 of the aerating respectively exhaustingair shafts 121, 122 as a way by which the interior of the kiln compartment isconnected with the extemal athmosphere. With the help of the micro climatevent 1211 the air shaft 121 connects or disconnects the exterior athmosphere 20 and the interior area 10' near the top 100 of the kiln compartment 1 ; analogous the air shaft 122 is connected in the same way with the help of appropriatemicro climate vent 1221 to extemal atmosphère and the interior space 10” nearthe bottom 101 of the kiln compartment 1 in a certain distance with respect tothe back wall 12, where is also placed a heat condensation device 2. By using 25 the micro climate vent 1211 great advantages are obtained in cases when performing the drying program is in automatic mode.

The heating condensation device 2 is schematically shown in the Fig. 8 andconsiste of the folowing parts: a housing 20 equiped with an outlet 201 for 30 condensate, a condensation unit 21, a heating unit 22, a compressor 23 and a throttle, which are mutually connected in appropriate circuit 26 together with 01 I 405 9 condensation unit 21 and heating unit 22 and a ventilator 25 which enables anair flow front condensation unit 21 to heating unit 22 continuing on in thesame direction towards other interior areas of the kiln compartment 1. Such aheating condensation device 2 enables thaï warm moistured air with the help 5 of condensation unit 21 reduces the amount of moisture in it formed as condensate flowing out trough a escape - pipe 201. The air is warmed up inthe heating unit 22 for approximately 2eC with respect to température of theair entering the kiln volume from its circumferential area. 10 In the kiln compartment 1 is asembled the top of the kiln volume, partition wall with an air deflector 3 close to the heat condensation unit 2 in a certaindistance from the side wall 12 which is connected with the bottom area 101 ofthe kiln compartment 1. The air shafts 121, 122, and heat condensation device2 are placed between the side wall 12 and the top area 100 with the air 15 deflector 3 placed under the top area 100 of the kiln compartment 1 in a certain distance from the top area 100 extending to the door 11 with theSystem shaft 111 of the kiln compartment 1. The top area 100 with airdeflector 3 is positioned in relationship to top 100 and door 11 with the Systemshaft 111 of kiln compartment 1 in a way to close the passage 30 between the 20 top 100, side wall 112 and the top with air deflector 3. The System shaft 111 can be led in automatic mode.

The shape and the position of the air deflector 3 placed under the top area 100enable forming a tunnel shaped air shaft 1000, in which is placed the 25 ventilation unit 40 comprising two properly spaced ventilators 41, 42 installed near the air shafts 121, 122 with the possibility of two more ventilators 43, 44placed in the middle part of the kiln compartment 1 equiped also with heatingéléments 430,440. 30 Under the top and air deflector 3 is in the space between the bottom 101 and

System vent 111 and the wall respectively the loading doors 11 and the rest of 011405 ίο the kiln volume 6 do offer enough large kiln volume that loading of at leastone ore more carnages with stacking unies 5 is possible on which is stackedwood or other materials intended to be dryied. In accordance with theprinciple of the invention will ail details considering position 5 be explained 5 as following.

In the diying device there is also installed at least one ventilaton unit 7consisting of at least one ventilator 71 with the ability of angular disperson 72of the current air flow. In position when ventilator is arranged parallel to 10 adjacent side wall of the kiln compartment 1 is in inactive State and - vice versa - when being swung in another position it is in the active State.Ventilator has to be swung in its inactive State e.g. when the carnages 5 aremoved along the kiln volume 6 for whatever the reason. Two ventilators 7Γ,and 71" as shown in the Fig. 3 are separately arranged on appropriate supports 15 72‘, 72" each at the one side of the longitudinal side walls 13, 14 of the kiln compartment 1.

The carnage stacking unit 5 for wood as shown on Fig. 9 is equiped by wheelsand foreseen for placing into the kiln volume 6. The carnage stacking unit 5 is 20 in accordance to the invention constructed in such a way that it enables stacking the wood in a vertical position with the help of vertical distantéléments 51 that also enable vertical stacking 52 with ensuring stackingthrough the width in spécifie degree. At least one stacking unit 5 is equiped bywheels 50 on Fig. 4 with the recommendation of having more stacking units. 25 In this way it is possible to mount one on each other separate stacking units 5 equipped by wheels 50 to the required height. In this way as shematicallyshown on Fig. 5 and 7 is achieved stacking in vertical and horizontal directionin the required value through out the kiln volume 6 what consequently ensuresgood air pcrmeability. 30 011405 11

According to the invention it is most suitable to choose stacking of wood inthc kiln volume 6 on the stacking units 5 in a way to achieve that dominantsurfaces of wood are in arranged in a vertical plane. Parts of wood of smallerwidth needs to be stacked in the stacking unit 5 by being put one on each otherin a vertical position with ensured air gap distance between the wood bymeans of appropriate distance element 5Γ.

In accordance with the invention is moreover in the kiln compartment 1, moreexactly in the area 10’, a UV-radiation device 8 is mounted, which ispreferably an emitor of ultra-violet and is foreseen for emitting of UV-rays tothe moisture contained in the air with the intention of eliminating theposibility of development cultures like mould, fungi and other microorganism.

In the kiln compartment 1 in the area 10' there are furthermore available atleast two magnets 9 in bipolar arrangement where magnetization treatraentinfluences on ail processe - Chemical, phyisical and biological and onproperties of ail moisture that is présent in the kiln volume 1.

In accordance with the invention the drying device on Fig. 4 and 5 enables anintegrated diying process of dehumidification by condensation-convectionmethod in a way as explained before. The wood intended to be dryied is putinto kiln volume 6 by opening loading lifting dooors 11 on staking units 5 onwhich is properly staked wood with accessories 51, if needed also withvertical distance éléments 51' and horizontal distance éléments 52. A thinlayer of wet substance sticked to rough surface of sawn wood is présent onwood in this phase preventing further lossing of moisture content from wood.After the wood is put in the kiln volume 6 and thc doors 11 closed the procèsof drying is started by activation of ventilators 41, 42, 43, 44, ventilation unit40, ventilator 25 attached to the heat condensation unit and activatedventilators 71. The System vent 111 assembled in the wall respectively thedoor 11 is closed. The heat condensation unit 2 is activated and appropriate air 011405 12 circulation is generated on a preset température value achieved by activatingheating éléments 430, 440 of the ventilation unit 40. When the conditionscorrespond to those as required, the heating éléments 430,440 are disactivatedand the required heat may be supplied only with activated heat condensation 5 device 2. With the intention of accélération of the drying process appropriate circulation of suitable warmed up air has to be established. When moistureprésent on/in the wood is absorbed by the air it is lead through the heatcondensation device 2 where it is eliminated with the help of condensationunit 21 as shown in the Fig. 8 and thereafter led out of the device by means ofio the escape pipe 201. In this phase can the kiln compartment 1 be connected with extemal air by means of air shafts 121 and 122. When passing trough theheat condensation device 2 the air is warmed up to a certain degree andsucked by ventilators 25 and 41, 42, 43, 44 in a circulating movement troughthe tunnel shaped air shaft 1000 where it is heated up if necessary by means of 15 appropriate heating éléments 430 and 440 threafter it passes trough the passage 30 and by the system vent 111 and air deflector 3 entering in the kilnvolume 6 where it is lead by ventilators 17 depending on the configuration ofthe wood that is stacked on carnage stacking units 50. 20 The drying conditions enable an intensive transfer of moisture from wood to the circulating air. Through the air shaft 122 the air emerges from the kilnvolume 6 and the kiln compartment 1 outwards to the extemal atmosphère. Asit is known from the science, the coller air enriched with moisture hasdownstream tendency, in this case therefore towards the bottom 101 of the 25 kiln compartment 1. However, due the pressure différence is simultaneously the emerged air through the air shaft with the help of micro climate vent 1211replaced by fresh air containing less moisture through the air shaft 121.

The rest of the air available in the kiln volume 6 passes trough the heat 30 condensation unit 2 where moisture from the air is released by the help of condesing unit 21 and partially dried and heated up bÿ means of the heating 011405 13 unit 22 to the desired degree emerges entering the tunnel air shaft 1000 withthe help of ail ventilators starts a new circulating cycle by entering into thekiln volume 6. The drying mode as described enables especially at thebeginning when a lot of free water is présent on the wood and in it an eficient 5 way to dry wood without heating it up.to high température causing possible drying defects known by drying in the past.

In order to achieve pre-defined and controlled value of air moisture with theabove described drying technology in the kiln compartment 1 and the kiln 10 volume 6, now the drying conditions hâve to be changed. As it is known, the wood contains capillars in cells that contain free liquid and absorbedmolécules of water called moisture content which by being lowered ifapplying the right drying technology must be executed in the proper climateconditions depending mainly on the kind of wood and varying essentially from 15 kind to kind, where circulating air should always be capapble of reducing moisture content, constantly emerging from the drying wood.

In the above mentioned way it is possible to execute drying in a simple andsurprisingly short time by the new developed drying device in kiln volume 6 20 without engaging acsessories of any kind and restaking processes of wood and without additional heating of air. The air passes through the passage 30 nearthe air deflector 3 and the System vent 111 is opened as shown on Fig. 6 and7 in considération that in most cases adittional heating of air is not needed,even functional extenninated the implémentation of the new developed drying 25 process can be executed. The micro climate vent 1211 and the air shafts 121 and 122 are by implémentation of new developed drying manner in theirclosed position.

Therefore, according to the invention, the différence comparing to known 30 solutions of drying processcs is physical prévention of repeted circulation and mixing of dry and saturated air what would cause-low efficiency. The 011405 14 activated ventilators 41, 42, 43, 44 of the venting unit 40, ventilator 25 of theheat condensation device 2, and ventilators 71 generate appropriate aircirculation. The extemal air led into the kiln compartment 1 and consequentlyinto the kiln volume 6 passes through the System vent 111, which is opened, 5 and is thereafter led through the kiln volume 6 and through a self-adjustable vent 31 and after that through the heat condensation device 2 containingheating unit 22 is mostly or even permanently functionally exterminated butwith the help of ventilator 25 is led through the tunnel-shaped air shaft 1000to the air passage 30. When the System vent 111 is in the opened position the 10 air emerging from the air passage 30 cannot reenter the kiln volume 6 but is exhausted from the kiln compartment 1 to the external athmosphere. In thisway it is achieved that only a dry fresh air has the abilïty to get in contact withthe diying wood. Those skilled in the art should understand that the intakenfresh air would hâve to be treated in certain ways in cases of extrême climate 15 conditions what can be done with the help for this meant accessories what does not influence on the principle of the invention.

Claims

011405 15 PATENT CLAIMS

1. A drying device, which is created on the basis of many ventilation airSystems arranged in a kiln compartment (1) and equiped by a heatcondensation device (2) comprising a condensation unit (21) and a heatingunit ( 22 ), and with at least one ventilator (25), with a kiln volume (6) as wellas with at least one loading door (131) in a kiln compartment (1) where woodor other material for drying is placed with the help of carriage staking units (5)with graduai absorption of moisture content in the wood to the circulating airavaliable in the said kiln compartment (1) and particulary in the said kilnvolume (6), characterized by that at least one wall (11), which may also bearranged as a door, is equipped by a System vent (111), which in sense offunctional leading of air flow for performing and monitoring the kind ofdrying mode in kombination with an air defiector (3) placed above the kilnvolume (6) in the kiln compartment (1) with the heat condensation device (2)ending in a certain distance from the another side wall (12) of the kilncompartment (1) close to the bottom (101) of the kiln compartment (1) towhich also extends the said air defiector (3) close to the heat condensationdevice (2) equiped at least with one self-adjusting vent (31) and air defiector (3) extending over the kiln volume (6) to the top (101) of the kilncompartment (1) in a direction towards the System vent (111) and the airpassage (30) between the air derflector (3) and the said System vent (111)assembled in the wall respectively the door (11) of the kiln compartment (1)formed tunnel shaped air shaft (1000) in which is placed appropriateventilation assembly (40).
2. Drying device according to Claim 1, characterized in that both aerating andexhausting shafts (121, 122 ) are equipped by one and the same micro climatevent (1211) arranged adjacent to the wall (12) of the kiln compartment (1),next to which near to the air defiector (3) a heat condensation device (2) is 011405 16 arranged, so that from the kiln compartment (1) one air shaft (121) extends tothe exterior athmosphere under the top (100) of the kiln compartment ( 1 ) andthe second air shaft (122) which extends to the exterior above the bottom(101) of the kiln compartment (1).
3. Drying device according to Claims l and 2, characterized in that in the kilnvolume (6) is placed at least one aditional ventilation unit (7) comprising atIeast one ventilator (71) placed on an adjustable support (72) enablingangullar dispersion of air flow with the ability of putting it in off mode ifplaced parallel to the side wall or in position on mode if placed unparallel.
4. Drying device according to Claim 1, characterized in that the System vent(111) is an-anged the wall respectively the door (11) of the kiln compartment( 1 ) in such a manner that in its closed position is enabled internai circulationof the air flow from the tunnel-shaped air shaft (1000) in the area beetwen thetop (100) of the kiln compartment (1) and the air deflector (3) passing troughthe air passage (30) between the air deflector (3) and the wall respectively thedoor (11) into the kiln volume (6) in a direction towards the self adjustablevent (31) and under the air deflector (3) towards the heat condensation unit (2), since in the case when the System vent (111) is opened the air flow ispassing from the tunnel shaped air shaft (1000) trough at least two gapsformed by opening the System vent (111) the air is blown out of kilncompartment (1) in open space on the upper side trough at least one gap andsimultaneously the fresh air is sucked from outside directly into the kilnvolume ( 6 ) through at least one lower gap.
5. Drying device according to Claim 1, characterized in that at least some ofventilators (41, 42, 43, 44), which are arranged in the tunnel-shaped air shaft(1000) available between the air deflector (3) and the top (100) of the kilncompartment (1), are equipped by appropriate heatig units (430,440) providedfor complementary heating the air in the tunnel shaped air shaft ( 1000 ). 01 1 405 17
6. Drying device according to Claim 1, characterized in that the carnagestaking units (5) intended for displacement of drying matcrial, particularywood, is equipped not only with vertical distance éléments (51), but also withhorizontal distance éléments (52). 5
7. Drying device according to Claim 6, characterized in that at least some ofthe carnage staking units (5) are equiped by wheels (50) ensuring theirmobility. io 8. Drying device according to Claim 6 and/or 7, characterized in that the carnage staking units (5) can be put one on each other by means of the verticaldistance éléments (51 ).
9. Drying device according to Claim 1, characterized in that the heat 15 condensation unit (2) comprises at least a condensation unit (21 ) and a heating unit (22).
10. Drying device according to Claim 9, characterized in that the heatcondensation device (2) in its housing (20), which is equiped with an escape 20 pipe (201) for leading out the condensate, near to the condensation unit (21), the heating unit (22), a the compresor (23) and a throttle (24), which arebound to appropriate οίτευϊζ also comprises a ventilator ( 25 ).
11. Drying device according to Claim 1, characterized in that the kiln 25 compartment (1) is constructed on the base of a standard container fulfilling dimensional standards for international container transports.
12. Drying device according to Claim 1, characterized in that the vent (31) ofthe air deflector (3) is self-adjustable. 30 011405 18
13. Drying device according to Claim 1, characterized in that in the interior ofthe kiln compartment (1) a radiation device (8) is placed close to the ventingand exhausting shafts (121,122).
14. Drying device according to Claim 13, characterized in that the radiationdevice (8) is preferably an emitor of ultra-violet rays.
15. Drying device according to Claim 1, characterized in at least two magnets(9) are arranged in the kiln compartment (1).
16. Drying device according to Claim 15, characterized in that at least twopermanent-magnets (9) are arranged in the interior of the kiln compartment(D-
17. Drying device according to Claim 16, characterized in that in the interiorof the kiln compartment (1) a bipolar magnetic fteld is available by means ofat least two permanent-magnets are arranged adjacent to the exhausting andaerating shafts (121,122) and the air deflector (3).
18. Drying device according to Claim 6, characterized in that the distancebetween neighbouring vertical distant éléments (51) - observed in a horizontaldirection - are always shorter than side vertical supports (52).
19. Drying device according to Claim 6 and 18, characterized in that thestaking unit (5) aside vertikal distance éléments (51) predicted use ofhorizontal distance éléments (5Γ) for ensuring propper air gap respectivelycertain distance between wooden éléments put one on each other in s verticaldirection between vertical distance éléments (51).
20. Drying device according to Claims 1 and 2, characterized in consideringmicroclimate vent (1211) functioning in combination with air shafts (121, 011405 19 122) which is in case of increased moisture value activated on the top of kilncompartment (l) and is connected with the kiln volume (6) through the airshaft (122), where air is blown out, but by the help of air shaft (121) in case ofpressure différences frcsh outside air is sucked into the area (10*), but when 5 the microclimate vent (1211) is unactivated is the drying process isolated from extemal athmosphere air and internai air circulation is generated in the kilncompartment ( 1 ).