CN104964527B - Lumber kiln - Google Patents
Lumber kiln Download PDFInfo
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- CN104964527B CN104964527B CN201510414611.5A CN201510414611A CN104964527B CN 104964527 B CN104964527 B CN 104964527B CN 201510414611 A CN201510414611 A CN 201510414611A CN 104964527 B CN104964527 B CN 104964527B
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Abstract
A kind of lumber kiln, including kiln body, kiln body are provided with main wicket, and at least one set of air-supply arrangement and heater are provided with kiln body；Multiple exhaust apparatus are provided with kiln body；Temperature-humidity detecting device and detecting device for moisture content are provided with kiln body.A kind of lumber kiln that the present invention is provided, by way of heating of blowing, makes the temperature in kiln uniform, coordinates and steams steam pipe, and easily regulation and the control present invention can be high by capacity usage ratio for the epidemic disaster in kiln, good energy-conserving effect；Wind speed field and epidemic disaster field distribution are uniform, and uniform drying is good；Drying efficiency is high, and overall economics performance is good.After the present invention, shorten 33% arid cycle, discoloration, rotten and to damage by worms be 0, implosion is 0, it is 0.6% that end check and table split, and deformation also improves larger, and internal stress eliminates abundant.
Description
Technical field
The present invention relates to drying of wood field, particularly a kind of lumber kiln.
Background technology
The method of the drying of wood is a lot, is generally divided into natural drying and the major class of artificial drying two.Natural drying is timber
It is deposited in the booth of the place of spaciousness or ventilation, is conducted heat using air, passes humid medium, using the heat of solar radiation,
Water In Wood is progressively discharged, reach certain degree of drying.Have the disadvantage：Drying condition such as temperature, relative humidity not able person
It is control, drying time is more long, it is impossible to be dried to relatively low moisture content, and floor space is big, and the occupation of capital is big, during drying
Timber is subject to the harm of bacterium worm and discoloration, rotten and damage by worms occurs, and produces the defects such as cracking, deformation.Artificial drying refer to
In certain equipment, method manually causes to be adapted to the condition of the drying of wood, such as temperature, relative humidity, airflow circulating speed
Degree etc., or with it is other heat, wet down method makes talent discharge moisture under manual control to obtain drying.Artificial drying can be with
Ensure dry mass, shorten drying time, and the requirement that dries of various different purposes can be met, in addition some it is special will
Ask.
, performance comprehensive musical instrument complicated for this precise structure of piano, wooden parts will use artificial drying, people
The dry common equipment of work is exactly lumber kiln.Dry kiln is generally brick structure or reinforced concrete structure, in recent years metal knot
The dry kiln of structure housing is also widely applied.But dry kiln there is also relatively costly, the problem of uneven drying.
The content of the invention
The technical problems to be solved by the invention are to provide a kind of lumber kiln, can conveniently adjust warm, wet in kiln
Degree, dry mass easily ensures, and rate of drying is fast, again can central heating, in being particularly suited for, the drying of the easy bole of low-density
Or the larger operating mode of batch.
In order to solve the above technical problems, the technical solution adopted in the present invention is：A kind of lumber kiln, including kiln body,
Kiln body is provided with main wicket, and at least one set of air-supply arrangement and heater are provided with kiln body；
Multiple exhaust apparatus are provided with kiln body；
Temperature-humidity detecting device and detecting device for moisture content are provided with kiln body.
Dividing plate is provided with kiln body, air-supply arrangement and heater are located at the top of dividing plate.
Described air-supply arrangement and heater are multigroup, multigroup air-supply arrangement and heater interlaced arrangement.
Described heater is resistive heating device or sealed induction heating apparatus.
In described sealed induction heating apparatus, heating medium is provided with fluid reservoir, fluid reservoir is circulated by pipeline and connected
Connect, pipeline is provided with multiple radiating fins, and magnet coil is wound with outside fluid reservoir.
Heat-insulation layer is additionally provided with outside fluid reservoir.
Steam-injection steam pipe is provided with kiln body, dividing plate is provided with kiln body, steam the edge that steam pipe is located above dividing plate.
Blower fan is provided with described exhaust apparatus, on the inclined-plane that the bottom of exhaust apparatus is ventilation, blade is relatively low one
Side is hinged with inclined-plane, and backing pin is provided with above blade, is less than with the angle of horizontal plane after the maximum unlatching of backing pin restriction blade
89°。
The first operation door, the area of the area less than main wicket of the first operation door are additionally provided with kiln body；
First operation door is externally provided with operation room, and second operation door is additionally provided with operation room.
The blast pipe of exhaust apparatus passes through operation room, heat-exchanger rig is provided with the blast pipe in operation room, in operation room
It is provided with air inlet pipeline.
A kind of lumber kiln that the present invention is provided, by way of heating of blowing, makes the temperature in kiln uniform, coordinates spray
Steam pipe, epidemic disaster easily regulation and the control in kiln, in preferred scheme, multigroup air-supply arrangement and heater are in kiln
Interior interlaced arrangement, coordinates the structure of dividing plate, so that the loop direction of hot blast is controllable, homogeneous heating.The sealed sensing for using adds
Thermal safety and energy consumption is relatively low, compared to existing resistive heating device energy consumption reduction by 40% ~ 50%.The exhaust apparatus of use
The air in kiln can be quickly discharged, automatic-sealed can be realized to control kiln temperature and humidity, and during not air draft, and be used for
The blade windage of sealing is small.The operation room and operation door of setting are easy to artificial control, it is to avoid open main wicket influence dry mass.
The present invention can be high by capacity usage ratio, good energy-conserving effect；Wind speed field and epidemic disaster field distribution are uniform, and uniform drying is good；It is dry
Dry efficiency high, overall economics performance is good.After the present invention, shorten 33% arid cycle, discoloration, rotten and to damage by worms be 0,
Implosion is 0, and it is 0.6% that end check and table split, and deformation also improves larger, and internal stress eliminates abundant.
Brief description of the drawings
The invention will be further described with reference to the accompanying drawings and examples：
Fig. 1 is Longitudinal cross section schematic of the invention.
Fig. 2 is cross-sectional view of the invention.
Fig. 3 is the structural representation of heater in the present invention.
Structural representation when Fig. 4 is the blade closing of exhaust apparatus in the present invention.
Structural representation when Fig. 5 is the blade unlatching of exhaust apparatus in the present invention.
In figure：Kiln body 1, air-supply arrangement 2, heater 3 heats medium 31, magnet coil 32, fluid reservoir 33, electromagnetism hair
Raw device 34, pipeline 35, radiating fin 36 steams steam pipe 4, and exhaust apparatus 5, blower fan 51, blade 52, rotating shaft 53, backing pin 54 is warm and humid
Degree detection means 6, detecting device for moisture content 7, material heap 8, main wicket 9, the first operation door 10, operation room 11, the second operation door 12,
Dividing plate 13.
Specific embodiment
Such as in Fig. 1,2, a kind of lumber kiln, including kiln body 1, steam-injection steam pipe 4 is provided with kiln body 1, kiln body 1 is provided with master
Wicket 9.At least one set of air-supply arrangement 2 and heater 3 are provided with kiln body 1；
Multiple exhaust apparatus 5 are provided with kiln body 1；
Temperature-humidity detecting device 6 and detecting device for moisture content 7 are provided with kiln body 1.Temperature-humidity detecting device 6, moisture content
The control valve of detection means 7, air-supply arrangement 2, heater 3 and steam-injection steam pipe 4 is connected with master control set, the master in this example
Control device uses PLC, is achieved in automatically controlling for epidemic disaster.
Lumber kiln of the invention dries maximum temperature at 95 DEG C or so, according to different moisture content, wet bulb and dry bulb
Temperature setting it is different, to use, and can effectively eliminate stress in the week of the usual drying of wood one.
Material heap 8 is vertical in lumber kiln, and the dried medium in kiln is driven by air-supply arrangement 2 --- air, by adding
Thermal 3 enters material heap after heating, and a part of heat is transmitted into timber, and absorbs the moisture being evaporated in timber, then by arranging
Device of air 5 discharges a part of humid air, while sucking a part of fresh air by air inlet pipeline, dried medium is maintained necessarily
Epidemic disaster under the conditions of, so that timber can be dried reasonably.Temperature-humidity detecting device 6 and detecting device for moisture content 7 are movable
State determines at least 4 moisture content changes of measuring point, can set the dry of each moisture content stage, wet bulb temperature according to drying schedule
Degree, semiautomatic control is implemented by heater 3 and steam-injection steam pipe 4 and air inlet pipeline, exhaust apparatus 5 etc., and semiautomatic control is favourable
According to material and dry progress modification drying parameter.Dry mass is improved, labour intensity is reduced.
As in Fig. 1,2, being provided with dividing plate 13 in kiln body 1, air-supply arrangement 2 and heater 3 are located at the top of dividing plate 13.By
This structure, the wind of the blowout of air-supply arrangement 2, can be true into be contacted with material heap 8, it is necessary to bypass dividing plate 13 and just understand after heater 3
The uniformity of insulation degree, it is to avoid occur being ftractureed because heating uneven, deform.
In preferred scheme such as Fig. 1, described air-supply arrangement 2 and heater 3 are multigroup, multigroup He of air-supply arrangement 2
The interlaced arrangement of heater 3.Every group of the direction blown is different or conversely, be thus conducive to controlling temperature field, according to not
Same dries result, using the part air-supply arrangement 2 and heater 3 at alternately unlatching interval, or the air-supplies dress for opening whole
Put 2 and heater 3 control the change in temperature field.
Described heater 3 is resistive heating device or sealed induction heating apparatus.
In described sealed induction heating apparatus, heating medium 31 is provided with fluid reservoir 33, fluid reservoir 33 passes through pipeline
35 circulation connection, will pipeline 35 two ends connect with fluid reservoir 33 formed circulate, be if necessary also using many pipelines 35
Feasible.Pipeline 35 is provided with multiple radiating fins 36, and magnet coil 32, magnet coil 32 and electricity are wound with outside fluid reservoir 33
Magnetic flux generator 34 is connected.Preferably, heat-insulation layer is additionally provided with outside fluid reservoir 33, magnet coil 32 is outside heat-insulation layer.Thus tie
Structure, the heating medium 31 of fluid reservoir 33 is made using magnet coil in the generation current vortex of steel fluid reservoir 33, generally heats medium
31 use mineral oil, then by using the circulation of pipeline, transfer heat to radiating fin 36, then by air-supply arrangement 2, will dissipate
The heat of hot fin 36 is taken away.Energy consumption can be greatly reduced using sealed induction heating apparatus.
Dividing plate 13 is provided with kiln body 1, the edge that steam pipe 4 is located at the top of dividing plate 13 is steamed.Thus structure, it is to avoid humidity
Concentrate, be conducive to being uniformly distributed humidity.
Is provided with blower fan 51 in described exhaust apparatus 5, on the inclined-plane that the bottom of exhaust apparatus 5 is ventilation, blade 52 compared with
Low side is hinged with inclined-plane, backing pin 54 is provided with the top of blade 52, with water after the maximum unlatching of the restriction blade 52 of backing pin 54
The angle of plane is less than 89 °.Thus structure, the windage needed for blade 52 is opened is smaller.And work as blower fan 51 and stop, then blade 52 exists
Action of Gravity Field falls on inclined-plane, and inclined-plane is blocked.
The first operation door 10, the area of the area less than main wicket 9 of the first operation door 10 are additionally provided with kiln body 1；
First operation door 10 is externally provided with operation room 11, and second operation door 12 is additionally provided with operation room 11.Thus structure, from
The turnover of operation room 11 is manually operated, and does not interfere with the drying effect in kiln body 1.
The blast pipe of exhaust apparatus 5 passes through operation room 11, and heat-exchanger rig is provided with the blast pipe in operation room 11, in behaviour
11 are provided with air inlet pipeline between work.Thus structure, exhaust apparatus 5 replenishes the fresh air of kiln using the heating by the exhaust gases of discharge, returns
Receive a part of heat.
When using, the present invention is by following steps：
1. the pre-heat treatment：When by the first moisture content of dry sawn timber be less than 50% when, carry out the pre-heat treatment, just moisture content 50% with
When upper, the pre-heat treatment can not be carried out, and preheat 50-60 DEG C of dry-bulb temperature.The purpose of the pre-heat treatment is first to make wood before unseasoned
The abundant heat penetration of material, and remove possible already present drying stress.Processing method is that the dry-bulb temperature for making temperature-humidity detecting device 6 reaches
To the temperature that the benchmark first stage requires, dry, wet-bulb temperature difference is 2 DEG C, and the time of maintenance presses the determination of sawn timber thickness：Softwood is every
1cm thickness 0.5h, broadleaf is per 1cm thickness 1h.
2. intermediate treatment：It is the conditioning carried out in kiln run, is produced its purpose is to eliminate early stage drying
Raw top layer tensile stress, to prevent table from splitting, or eliminates the Surface hardened layer produced by intermediary and later stages drying, to prevent in deuterogenesis
Split.The medium state of intermediate treatment：Dry-bulb temperature t is not less than the fiducial temperature in stage at that time, major control wet-bulb depression
△t=2℃.The time of maintenance：, per 1cm thickness 1h, hard broadleaf is per 1cm thickness 1.5h, dry-bulb temperature 60- for softwood or Deciduous trees
70℃。
3. Balance Treatment：When the moisture content that inspection panel is detected has reached the whole moisture content of requirement, for whole material
For heap, may there is some positions or some first moisture content sawn timber higher not yet to reach the whole moisture content of requirement, if sawn timber compared with
It is thick, it is also possible to which that central layer is not yet parched, and there is larger moisture gradient.If higher to dry mass requirement, at this moment should enter
Row Balance Treatment, is that drying is continued in moisture content part higher, and moisture content stops compared with lower part or slows down drying, whole to improve
Individual material heap and along the drying uniformity on sawn timber thickness direction, according to the distribution of moisture content, the air-supply dress of opening section or whole
2 and heater 3 are put, if necessary in the part that moisture content is relatively low, is kept the skin wet by steaming steam pipe 4.The bar of Balance Treatment
Part is：Dry-bulb temperature still for final stage dry-bulb temperature, 70-80 DEG C of dry-bulb temperature, wet-bulb depression is by than whole moisture content
Low 2% equilibrium moisture content is determined.The time that Balance Treatment is maintained depends on the degree of irregularity of first moisture content and doing for dry kiln
The dry uniformity and quality requirement, 2-6h is about needed per 1cm thickness.
4. end of a period treatment：Before kiln drying terminates, end of a period treatment should be typically carried out, to eliminate remaining drying stress.Treatment
Condition：Dry-bulb temperature is still the dry-bulb temperature of final stage, 70-80 DEG C of temperature, dry, wet-bulb temperature difference △ t=2 ~ 3 DEG C.During maintenance
Between：Per 1cm 1 ~ 1.5h of thickness, per 1cm 1.5 ~ 2h of thickness, apparent mass requires the soft or hard degree with drying schedule to broadleaf to softwood
Depending on, if benchmark is softer and during more abundant intermediate treatment, end of a period process time can be shorter；If conversely, benchmark is harder or middle
Not enough fully, end of a period process time answers proper extension to reason.
In timber kiln run, it is necessary to the change of its moisture content is constantly or periodically detected with detecting device for moisture content 7, then press
Benchmark requirement, sets the dry-bulb temperature and wet-bulb depression in each moisture content stage.
Claims (8)
1. a kind of lumber kiln, including kiln body（1）, kiln body（1）It is provided with main wicket（9）, it is characterized in that：Kiln body（1）Inside it is provided with
At least one set of air-supply arrangement（2）And heater（3）；
In kiln body（1）Inside it is provided with multiple exhaust apparatus（5）；
In kiln body（1）Inside it is provided with temperature-humidity detecting device（6）And detecting device for moisture content（7）；
In kiln body（1）Inside it is provided with steam-injection steam pipe（4）, in kiln body（1）Inside it is provided with dividing plate（13）, steam steam pipe（4）Positioned at dividing plate
（13）The edge of top；
Described exhaust apparatus（5）Inside it is provided with blower fan（51）, in exhaust apparatus（5）Bottom be ventilation inclined-plane, blade（52）
It is hinged on relatively low side and inclined-plane, in blade（52）Top be provided with backing pin（54）, backing pin（54）Limit blade（52）Most
Angle after big unlatching with horizontal plane is less than 89 °.
2. a kind of lumber kiln according to claim 1, it is characterized in that：In kiln body（1）Inside it is provided with dividing plate（13）, air-supply
Device（2）And heater（3）Positioned at dividing plate（13）Top.
3. a kind of lumber kiln according to claim 1, it is characterized in that：Described air-supply arrangement（2）And heater
（3）It is multigroup, multigroup air-supply arrangement（2）And heater（3）Interlaced arrangement.
4. a kind of lumber kiln according to claim 1, it is characterized in that：Described heater（3）It is resistance heating
Device or sealed induction heating apparatus.
5. a kind of lumber kiln according to claim 4, it is characterized in that：In described sealed induction heating apparatus,
Fluid reservoir（33）Inside it is provided with heating medium（31）, fluid reservoir（33）By pipeline（35）Circulation connection, pipeline（35）It is provided with many
Individual radiating fin（36）, fluid reservoir（33）Outside be wound with magnet coil（32）.
6. a kind of lumber kiln according to claim 5, it is characterized in that：In fluid reservoir（33）It is additionally provided with heat-insulation layer outward.
7. a kind of lumber kiln according to claim 1, it is characterized in that：In kiln body（1）It is additionally provided with the first operation door
（10）, the first operation door（10）Area be less than main wicket（9）Area；
First operation door（10）Be externally provided with operation room（11）, in operation room（11）It is additionally provided with the second operation door（12）.
8. a kind of lumber kiln according to claim 7, it is characterized in that：Exhaust apparatus（5）Blast pipe through operation
Between（11）, in operation room（11）Interior blast pipe is provided with heat-exchanger rig, in operation room（11）It is provided with air inlet pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510414611.5A CN104964527B (en) | 2015-07-15 | 2015-07-15 | Lumber kiln |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510414611.5A CN104964527B (en) | 2015-07-15 | 2015-07-15 | Lumber kiln |
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| Publication Number | Publication Date |
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| CN104964527A CN104964527A (en) | 2015-10-07 |
| CN104964527B true CN104964527B (en) | 2017-06-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510414611.5A Active CN104964527B (en) | 2015-07-15 | 2015-07-15 | Lumber kiln |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105716388A (en) * | 2016-04-07 | 2016-06-29 | 陈建荣 | Wood dryer |
| CN106247762B (en) * | 2016-08-30 | 2019-05-10 | 北京五洲木国际实业有限公司 | A kind of type cabin Wood drying apparatus and drying means against the wind |
| CN107178993B (en) * | 2017-04-28 | 2019-07-09 | 中南林业科技大学 | Minute-pressure superheated steam Wood drying apparatus and application method |
| CN109489406A (en) * | 2018-09-29 | 2019-03-19 | 江苏锐阳照明电器设备有限公司 | A kind of air duct autocontrol method for LED light powder dryer |
| CN110173964A (en) * | 2019-05-23 | 2019-08-27 | 安徽繁盛木业包装有限公司 | A kind of lumber kiln |
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|---|---|---|---|---|
| CN101644530A (en) * | 2009-08-20 | 2010-02-10 | 杭州纳狄机械有限公司 | Wood drying kiln full-automatic control system |
| CN202229285U (en) * | 2011-07-21 | 2012-05-23 | 上海机金电子机械有限公司 | Fireless multifunctional heating drier |
| CN102654351A (en) * | 2012-05-31 | 2012-09-05 | 江西太升实业有限公司 | Novel automatically-controlled wood drying kiln |
| CN204757580U (en) * | 2015-07-15 | 2015-11-11 | 宜昌金宝乐器制造有限公司 | Energy -saving full -automatic postforming borduring machine |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080256826A1 (en) * | 2006-02-23 | 2008-10-23 | Zarembinski Thomas P | Drying cabinet with ventilation system |
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2015
- 2015-07-15 CN CN201510414611.5A patent/CN104964527B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101644530A (en) * | 2009-08-20 | 2010-02-10 | 杭州纳狄机械有限公司 | Wood drying kiln full-automatic control system |
| CN202229285U (en) * | 2011-07-21 | 2012-05-23 | 上海机金电子机械有限公司 | Fireless multifunctional heating drier |
| CN102654351A (en) * | 2012-05-31 | 2012-09-05 | 江西太升实业有限公司 | Novel automatically-controlled wood drying kiln |
| CN204757580U (en) * | 2015-07-15 | 2015-11-11 | 宜昌金宝乐器制造有限公司 | Energy -saving full -automatic postforming borduring machine |
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