CN109489357A - Joint for timber is mostly used dry kiln and its application method - Google Patents
Joint for timber is mostly used dry kiln and its application method Download PDFInfo
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- CN109489357A CN109489357A CN201811276928.7A CN201811276928A CN109489357A CN 109489357 A CN109489357 A CN 109489357A CN 201811276928 A CN201811276928 A CN 201811276928A CN 109489357 A CN109489357 A CN 109489357A
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- timber
- kiln
- hydrofuge
- drying
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B9/00—Machines or apparatus for drying solid materials or objects at rest or with only local agitation; Domestic airing cupboards
- F26B9/06—Machines or apparatus for drying solid materials or objects at rest or with only local agitation; Domestic airing cupboards in stationary drums or chambers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B1/00—Preliminary treatment of solid materials or objects to facilitate drying, e.g. mixing or backmixing the materials to be dried with predominantly dry solids
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
- F26B21/001—Drying-air generating units, e.g. movable, independent of drying enclosure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
- F26B21/004—Nozzle assemblies; Air knives; Air distributors; Blow boxes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
- F26B25/001—Handling, e.g. loading or unloading arrangements
- F26B25/003—Handling, e.g. loading or unloading arrangements for articles
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B3/00—Drying solid materials or objects by processes involving the application of heat
- F26B3/02—Drying solid materials or objects by processes involving the application of heat by convection, i.e. heat being conveyed from a heat source to the materials or objects to be dried by a gas or vapour, e.g. air
- F26B3/04—Drying solid materials or objects by processes involving the application of heat by convection, i.e. heat being conveyed from a heat source to the materials or objects to be dried by a gas or vapour, e.g. air the gas or vapour circulating over or surrounding the materials or objects to be dried
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B2210/00—Drying processes and machines for solid objects characterised by the specific requirements of the drying good
- F26B2210/16—Wood, e.g. lumber, timber
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Microbiology (AREA)
- Drying Of Solid Materials (AREA)
Abstract
The invention discloses a kind of joints for timber to be mostly used dry kiln and its application method, dry kiln includes kiln body, the dry section for placing material heap to be dried is provided in kiln body, the top or side of dry section are provided with ventilation dewetting area, air inlet and moisture exhausting port are provided at the top of kiln body, blower fan group, heating group and steam-injection group are installed in ventilation dewetting area, kiln body outer wall is installed with the air intake assembly being connected to respectively with air inlet and moisture exhausting port and hydrofuge component, and hydrofuge component is connected with superheated steam heat condensate recovery system.Application method is mostly used dry kiln based on the above-mentioned joint for timber and carries out.The present invention has the advantages that high production efficiency, energy conservation and environmental protection, has a wide range of application.
Description
Technical field
Dry kiln is mostly used the invention mainly relates to Wood Drying Technology more particularly to a kind of joint for timber and its is made
Use method.
Background technique
Drying is the important procedure in timber processing, and not only its energy consumption accounts for about the 40-70% of the total power consumption of polymer processing of timber, and dry
The quality of drying quality directly affects the height and the superiority and inferiority of wooden quality of timber utilization rate.In China's timber industry, 80%
Above dried sawn timber is dried using conventional drying methods.This method has useful load big, technology maturation etc.
Feature.But the tail gas that conventional drying is long there is also drying time, energy consumption is big, discharges in drying process is unfriendly to environment
The problems such as.Therefore, new Wood drying apparatus is developed, realizes the efficient of timber, energy-saving drying to wood using new drying means
The sustainable development of material industry has very important realistic meaning.
Summary of the invention
The technical problem to be solved by the present invention is to overcome the deficiencies in the prior art, a kind of high production efficiency, energy-saving ring are provided
The joint for timber protect, having a wide range of application is mostly used dry kiln and its application method.
In order to solve the above technical problems, the invention adopts the following technical scheme:
A kind of joint for timber is mostly used dry kiln, including kiln body, is provided in the kiln body for placing material heap to be dried
Dry section, the top or side of the dry section are provided with ventilation dewetting area, are provided with air inlet and row at the top of the kiln body
Wet mouth, is installed with blower fan group, heating group and steam-injection group in the ventilation dewetting area, the kiln body outer wall be installed with respectively with air inlet
The air intake assembly and hydrofuge component that mouth is connected to moisture exhausting port, the hydrofuge component are connected with superheated steam heat condensing recovery system
System.
As a further improvement of the above technical scheme:
The superheated steam heat condensate recovery system includes superheated steam heat condensation recovering device, connecting pipe and shut-off valve,
Described connecting pipe one end is docked with hydrofuge component, and the other end is docked with superheated steam heat condensation recovering device, the shut-off valve
It is arranged in connecting pipe.
Superheated steam import, cooling water inlet, hot water outlet and cold are provided on the superheated steam heat condensation recovering device
Condensate outlet, the connecting pipe are docked with superheated steam import.
The hydrofuge component includes dehumidification tube group and hydrofuge valve group, the dehumidification tube group be installed in kiln body outer wall and with ventilation
The connection of hydrofuge area, the hydrofuge valve group are arranged in dehumidification tube group, and the connecting pipe is docked with dehumidification tube group.
The dehumidification tube group includes that hydrofuge supervisor and more hydrofuges are in charge of, and each hydrofuge is in charge of interval and is installed in kiln body outer wall simultaneously
Be connected to ventilation dewetting area, hydrofuge supervisor while connecting each hydrofuge and is in charge of, the hydrofuge valve group include hydrofuge main valve with
And the hydrofuge for hydrofuge being in charge of quantity Matching divides valve, on hydrofuge supervisor, each hydrofuge divides valve setting to exist for the hydrofuge main valve setting
Corresponding hydrofuge is in charge of, and the connecting pipe is docked with hydrofuge supervisor.
The air intake assembly includes air inlet pipe group and air inlet valve group, the air inlet pipe group be installed in kiln body outer wall and with ventilation
The connection of hydrofuge area, the air inlet valve group are arranged in air inlet pipe group.
The air inlet pipe group includes that air inlet supervisor and more air inlets are in charge of, and each air inlet is in charge of interval and is installed in kiln body outer wall simultaneously
Be connected to ventilation dewetting area, air inlet supervisor while connecting each air inlet and is in charge of, the air inlet valve group include air inlet main valve with
And the air inlet for air inlet being in charge of quantity Matching divides valve, on air inlet supervisor, each air inlet divides valve setting to exist for the air inlet main valve setting
Corresponding air inlet is in charge of.
It further include warm and humid sensor and operating condition machine, the warm and humid sensor is installed in kiln body inner wall and is located at dry section, institute
It states operating condition machine and blower fan group, heating group, steam-injection group, air inlet main valve, air inlet divides valve, hydrofuge main valve, hydrofuge to divide valve, superheated steam heat
Measure condensation recovering device and cut-off valve signal connection.
The kiln body is provided with door opening, and the wicket for being opened and closed to the door opening is installed in kiln body.
A kind of application method based on the above-mentioned multi-purpose dry kiln of the joint for timber, comprising the following steps:
S1: timber is into kiln: in the dry section that timber is stacked into kiln body in the form of stacking；
S2: heating drying: closing superheated steam heat condensate recovery system, closes air intake assembly, hydrofuge component, opens blower fan group
With heating group, dry kiln medium temperature is made to be increased to 40 DEG C, keeps the temperature 0.5h;Steam-injection group is opened, humidity of media in dry kiln is protected
The temperature for being gradually heated to the drying schedule first stage in 95-100% is held, and keeps the temperature 1-2h/cm；Open air intake assembly and hydrofuge
Component, into drying stage, control of temperature and humidity is executed according to drying schedule in drying process, drying process management, operation with
Existing conventional drying methods are consistent, and in drying process, dried medium maximum temperature is no more than 100 DEG C, by the drying of wood to aqueous
Rate is 6-15%；
S3: high humidity Balance Treatment: after drying, air intake assembly and hydrofuge component is closed, drying kiln for drying medium temperature is made
It is maintained at the temperature of drying schedule final stage, humidity of media, processing time execute according to drying schedule in dry kiln；
S4: timber kiln discharge: when dry section by the moisture content deviation of dry sawn timber less than 5% after, terminate entire drying process, to timber
Temperature is cooled to be no more than 15 DEG C higher than outdoor environment temperature after kiln discharge, and the timber after drying is placed in siccative canopy carry out it is flat
Weighing apparatus processing.
A kind of application method based on the above-mentioned multi-purpose dry kiln of the joint for timber, comprising the following steps:
S1: timber is into kiln: in the dry section that timber is stacked into kiln body in the form of stacking；
S2: heating drying: closing air intake assembly, opens superheated steam heat condensate recovery system and hydrofuge divides valve, open blower
Group, heating group and steam-injection group are preheated and are dried to timber using gradually temperature-raising method, be first increased to dry kiln temperature
It 35-45 DEG C, and keep the temperature 0.5-2h, then proceedes to that medium temperature will be handled and is increased to 70-80 DEG C timber is preheated, and keep the temperature
0.5-1.0h/cm, makes the abundant heat penetration of timber again, and in temperature-rise period, heating rate is controlled in 5-10 DEG C/h, temperature-rise period,
Dry indoor humidity is maintained at 95% or more, after humidity reaches 95%, closes steam-injection group；After heat preservation, then with 5-20
DEG C/kiln temperature is warming up to 110 DEG C -140 DEG C of dryer settings temperature by the heating rate of h, in this case, by the drying of wood to aqueous
Rate is 2-12%；
S3: high humidity Balance Treatment: heating group is closed, dried medium temperature is made to be reduced to 80 DEG C -90 DEG C；Hydrofuge component is closed, then
Secondary open and close heating group, makes kiln temperature maintain 80 DEG C -90 DEG C, and carries out high humidity Balance Treatment to timber at this temperature；It is high
Temperature, humidity and the time parameter of wet Balance Treatment are arranged consistent with usual drying processes；
S4: timber kiln discharge: when dry section by the moisture content deviation of dried sawn timber less than 5% after, terminate entire drying process, to wood
Material temperature is cooled to be no more than 15 DEG C higher than outdoor environment temperature after kiln discharge, and the timber after drying is placed in siccative canopy and is carried out
Balance Treatment.
A kind of application method based on the above-mentioned multi-purpose dry kiln of the joint for timber, comprising the following steps:
S1: timber is into kiln: in the dry section that timber is stacked into kiln body in the form of stacking；
S2: conventional heating drying: superheated steam heat condensate recovery system is closed, air intake assembly, hydrofuge component are closed, opens wind
Unit and heating group make dry kiln medium temperature be increased to 40 DEG C, keep the temperature 0.5h；Steam-injection group is opened, keeps medium in dry kiln wet
Degree is maintained at 95-100%；It is gradually heated to the temperature of drying schedule first stage, and keeps the temperature 1-2h/cm；Open air intake assembly and
Hydrofuge component, into drying stage, control of temperature and humidity is executed according to drying schedule in drying process；Drying process management, behaviour
Make consistent with existing conventional drying methods；In drying process, dried medium maximum temperature is no more than 100 DEG C, by moisture content
25% is dried to hereinafter, but not less than 20%；
S3: superheat steam drying: closing air intake assembly and hydrofuge component, opens steam-injection group, is maintained at the humidity in dry kiln
95% or more, and the temperature of dried medium is stepped up to 100 DEG C, heating rate control is protected in 5-10 DEG C/h, and in this case
It holds 1-2 hours, opens hydrofuge and divide valve, hydrofuge main valve remains off, opening superheated steam heat condensate recovery system, then into
One step increases dried medium temperature, its temperature is increased to 110-140 DEG C, timber is dried in this case, will
Sawn timber moisture content is reduced to 2-12%；
S4: high humidity Balance Treatment: heating group is closed, dried medium temperature is made to be reduced to 80 DEG C -90 DEG C；Hydrofuge component is closed, then
Secondary unlatching heating group, makes kiln temperature maintain 80 DEG C -90 DEG C, and carries out high humidity Balance Treatment to timber at this temperature；High humidity is flat
Temperature, humidity and the time parameter of weighing apparatus processing are arranged consistent with usual drying processes；
S5: timber kiln discharge: when dry section by the moisture content deviation of dry sawn timber less than 5% after, terminate entire drying process, to timber
Temperature is cooled to be no more than 15 DEG C higher than outdoor environment temperature after kiln discharge, and the timber after drying is placed in siccative canopy carry out it is flat
Weighing apparatus processing.
Compared with the prior art, the advantages of the present invention are as follows:
Joint for timber of the invention is mostly used dry kiln, including kiln body, and kiln body is in the useful placement material heap to be dried of interior setting
Dry section, the top or side of dry section are provided with ventilation dewetting area, are provided with air inlet and moisture exhausting port at the top of kiln body, divulge information
It is installed with blower fan group, heating group and steam-injection group in hydrofuge area, kiln body outer wall is installed with to be connected to air inlet and moisture exhausting port respectively
Air intake assembly and hydrofuge component, hydrofuge component are connected with superheated steam heat condensate recovery system.The dry kiln realizes single
The multipurpose of dry kiln uses: independent conventional drying；Independent superheat steam drying；Routine-superheated steam combined drying；It is expanded
The application field and using flexible of dry kiln.Its short processing time, high production efficiency: the present invention realizes the height of timber
Effect, energy conservation and environmental protection are dry, and drying time can shorten 30% or more, and substantially reduce dry waste gas discharge.Energy consumption and life
It is few to produce cost: the present invention reduces power consumption by the mode built in blower fan group, and passes through superheated steam heat condensing recovery
The thermal energy being discharged in system recycling drying process, reduces thermal energy consumption, reduces drying cost, have significant economic benefit.This
The application method based on the above-mentioned multi-purpose dry kiln of the joint for timber of invention, it is multi-purpose dry to have the above-mentioned joint for timber
The dry corresponding technical effect of kiln.
Detailed description of the invention
Fig. 1 is schematic view of the front view of the present invention for the multi-purpose dry kiln embodiment 1 of joint of timber.
Fig. 2 is side structure schematic view of the present invention for the multi-purpose dry kiln embodiment 1 of joint of timber.
Fig. 3 is overlooking structure diagram of the present invention for the multi-purpose dry kiln embodiment 1 of joint of timber.
Fig. 4 is schematic perspective view of the present invention for the multi-purpose dry kiln embodiment 1 of joint of timber.
Fig. 5 is side structure schematic view of the present invention for the multi-purpose dry kiln embodiment 2 of joint of timber.
Fig. 6 is schematic view of the front view of the present invention for the multi-purpose dry kiln embodiment 2 of joint of timber.
Fig. 7 is overlooking structure diagram of the present invention for the multi-purpose dry kiln embodiment 2 of joint of timber.
Each label indicates in figure:
1, kiln body；11, dry section；12, ventilation dewetting area；13, air inlet；14, moisture exhausting port；15, door opening；16, wicket；2, blower
Group；3, heating group；4, steam-injection group；5, air intake assembly；51, air inlet pipe group；511, air inlet is responsible for；512, air inlet is in charge of；52, air inlet
Valve group；521, air inlet main valve；522, air inlet divides valve；6, hydrofuge component；61, dehumidification tube group；611, hydrofuge is responsible for；612, hydrofuge point
Pipe；62, hydrofuge valve group；621, hydrofuge main valve；622, hydrofuge divides valve；7, superheated steam heat condensate recovery system；71, overheat is steamed
Vapour heat condensation recovering device；711, superheated steam import；712, cooling water inlet；713, hot water outlet；714, condensation-water drain；
72, connecting pipe；73, shut-off valve；8, warm and humid sensor；9, operating condition machine.
Specific embodiment
The present invention is described in further details below with reference to Figure of description and specific embodiment.
Dry kiln embodiment 1:
Fig. 1 to Fig. 4 shows the first embodiment of the present invention for the multi-purpose dry kiln of joint of timber, including kiln body 1, kiln body
The dry section 11 for placing material heap to be dried is provided in 1, the top of dry section 11 is provided with ventilation dewetting area 12, kiln body 1
Top is provided with air inlet 13 and moisture exhausting port 14, and blower fan group 2, heating group 3 and steam-injection group 4, kiln are installed in ventilation dewetting area 12
1 outer wall of body is installed with the air intake assembly 5 and hydrofuge component 6 being connected to respectively with air inlet 13 and moisture exhausting port 14, and hydrofuge component 6 connects
There is superheated steam heat condensate recovery system 7.There are three types of the methods of operation for the device, the first is conventional drying operation, is closed
Superheated steam heat condensate recovery system 7 closes air intake assembly 5, hydrofuge component 6, opens blower fan group 2 and heating group 3, makes drying
Kiln medium temperature is increased to 40 DEG C, keeps the temperature 0.5h, opens steam-injection group 4, humidity of media in dry kiln is made to be maintained at 95-100%, by
It is gradually warming up to the temperature of drying schedule first stage, and keeps the temperature 1-2h/cm；Air intake assembly 5 and hydrofuge component 6 are opened, into dry
In the dry stage, control of temperature and humidity is executed according to drying schedule in drying process, and drying process management, operation and existing routine are dry
Drying method is consistent, and in drying process, dried medium maximum temperature is no more than 100 DEG C, is 6-15% by the drying of wood to moisture content,
After drying, air intake assembly 5 and hydrofuge component 6 are closed, so that drying kiln for drying medium temperature is maintained at drying schedule last
The temperature in stage, humidity of media, processing time execute according to drying schedule in dry kiln, when dry section 11 is by the aqueous of dry sawn timber
After rate deviation is less than 5%, terminate entire drying process, after Wood temperature is cooled to and is no more than 15 DEG C higher than outdoor environment temperature
Kiln discharge, and the timber after drying is placed in siccative canopy and is balanced processing；The second way is superheat steam drying operation,
First timber is stacked into the dry section 11 of kiln body 1 in the form of stacking, closes air intake assembly 5, it is cold to open superheated steam heat
Condensation reclaiming system 7 and hydrofuge divide valve 622, open blower fan group 2, heating group 3 and steam-injection group 4, using gradually temperature-raising method to timber into
Row preheating and drying process, are first increased to 35-45 DEG C for dry kiln temperature, and keep the temperature 0.5-2h, then proceed to that medium will be handled
Temperature is increased to 70-80 DEG C and preheats to timber, and keeps the temperature 0.5-1.0h/cm, makes the abundant heat penetration of timber, temperature-rise period again
In, heating rate controls in 5-10 DEG C/h, temperature-rise period, and dry indoor humidity is maintained at 95% or more, when humidity reaches
After 95%, steam-injection group 4 is closed；After heat preservation, then kiln temperature is warming up to by dryer settings temperature with the heating rate of 5-20 DEG C/h
110 DEG C -140 DEG C, in this case, it is 2-12% by the drying of wood to moisture content, closes heating group 3, drop dried medium temperature
Down to 80 DEG C -90 DEG C；Hydrofuge component 6 is closed, is again turned on and closes heating group 3, so that kiln temperature is maintained 80 DEG C -90 DEG C, and herein
At a temperature of to timber carry out high humidity Balance Treatment；Temperature, humidity and the time parameter setting and conventional drying of high humidity Balance Treatment
Process is consistent, when dry section 11 by the moisture content deviation of dried sawn timber less than 5% after, terminate entire drying process, to Wood temperature
It is cooled to and is higher than kiln discharge after outdoor environment temperature is no more than 15 DEG C, and the timber after drying is placed in siccative canopy and is balanced place
Reason；
The third mode is that conventional heating is dry and superheat steam drying combines operation, first accumulates timber in the form of stacking
Into the dry section 11 of dry kiln body 1, superheated steam heat condensate recovery system 7 is closed, air intake assembly 5, hydrofuge component are closed
6, blower fan group 2 and heating group 3 are opened, dry kiln medium temperature is made to be increased to 40 DEG C, keeps the temperature 0.5h；Steam-injection group 4 is opened, drying is made
Humidity of media is maintained at 95-100% in kiln；It is gradually heated to the temperature of drying schedule first stage, and keeps the temperature 1-2h/cm；It opens
Air intake assembly 5 and hydrofuge component 6, into drying stage, control of temperature and humidity is executed according to drying schedule in drying process；It is dry
Dry process management, operation are consistent with existing conventional drying methods；In drying process, dried medium maximum temperature is no more than 100 DEG C,
Moisture content is dried to 25% hereinafter, but not less than 20%；Air intake assembly 5 and hydrofuge component 6 are closed, steam-injection group 4 is opened, makes
Humidity in dry kiln is maintained at 95% or more, and is stepped up the temperature of dried medium to 100 DEG C, and heating rate is controlled in 5-
10 DEG C/h, and kept for 1-2 hours in this case, it opens hydrofuge and divides valve 622, hydrofuge main valve 621 remains off, opened
Hot steam heat condensate recovery system 7 further increases dried medium temperature, its temperature is increased to 110-140 DEG C, herein
Timber is dried under state, sawn timber moisture content is reduced to 2-12%, closes heating group 3, drops dried medium temperature
Down to 80 DEG C -90 DEG C；Hydrofuge component 6 is closed, heating group 3 is again turned on, so that kiln temperature is maintained 80 DEG C -90 DEG C, and in this temperature
Under to timber carry out high humidity Balance Treatment；Temperature, humidity and the time parameter setting of high humidity Balance Treatment and usual drying processes
Unanimously, when dry section 11 by the moisture content deviation of dry sawn timber less than 5% after, terminate entire drying process, be cooled to Wood temperature
Kiln discharge after being no more than 15 DEG C higher than outdoor environment temperature, and the timber after drying is placed in siccative canopy and is balanced processing.Compared with
For traditional structure, the multipurpose which realizes single dry kiln is used: independent conventional drying；Independent superheated steam is dry
It is dry；Routine-superheated steam combined drying；Its application field for having expanded dry kiln and using flexible.Its short processing time, life
Produce high-efficient: efficient, the energy saving and environmental protection that the present invention realizes timber is dry, and drying time can shorten 30% or more, and significant
Reduce dry waste gas discharge.Energy consumption and production cost are few: mode of the present invention built in by blower fan group 2 reduces electric energy
Consumption, and the thermal energy being discharged in drying process is recycled by superheated steam heat condensate recovery system 7, reduce thermal energy consumption, drop
Low drying cost has significant economic benefit.
In the present embodiment, superheated steam heat condensate recovery system 7 includes superheated steam heat condensation recovering device 71, connection
Pipeline 72 and shut-off valve 73,72 one end of connecting pipe are docked with hydrofuge component 6, the other end and superheated steam heat condensation recovering device
71 docking, shut-off valve 73 are arranged in connecting pipe 72.In the structure, when carrying out independent superheat steam drying and conventional-
When superheated steam combined drying is run, by opening stop valve 73, the thermal energy being discharged in drying process is recycled, thermal energy is reduced and disappears
Consumption reduces drying cost.
In the present embodiment, superheated steam import 711, cooling water inlet are provided on superheated steam heat condensation recovering device 71
712, hot water outlet 713 and condensation-water drain 714, connecting pipe 72 are docked with superheated steam import 711.In the structure, pass through
Cooling water inlet 712 is passed through cooling water heat exchange, and hot water outlet 713 is connected with boiler feed water mouth, condensation-water drain 714 with hold water tank or
Treatment tank connects, simple and reliable for structure.
In the present embodiment, hydrofuge component 6 includes dehumidification tube group 61 and hydrofuge valve group 62, and dehumidification tube group 61 is installed in kiln body 1
Outer wall is simultaneously connected to ventilation dewetting area 12, and hydrofuge valve group 62 is arranged in dehumidification tube group 61, connecting pipe 72 and dehumidification tube group 61
Docking.In the structure, the moisture in ventilation dewetting area 12 for being expelled directly out or being drained by connecting pipe 72 by dehumidification tube group 61
Superheated steam heat condensation recovering device 71, hydrofuge valve group 62 are used to control the on-off of dehumidification tube group 61.
In the present embodiment, dehumidification tube group 61 includes that hydrofuge supervisor's 611 and Duo Gen hydrofuge is in charge of 612, and each hydrofuge is in charge of between 612
Every being installed in 1 outer wall of kiln body and being connected to ventilation dewetting area 12, connect each hydrofuge is in charge of 612 to hydrofuge supervisor 611 simultaneously, hydrofuge
Valve group 62 includes hydrofuge main valve 621 and the hydrofuge for being in charge of 612 quantity Matchings with hydrofuge divides valve 622, and the setting of hydrofuge main valve 621 exists
On hydrofuge supervisor 611, each hydrofuge divides the setting of valve 622 to be in charge of on 612 in corresponding hydrofuge, connecting pipe 72 and hydrofuge supervisor 611
Docking.In the structure, when needing for moisture to be expelled directly out, then opens hydrofuge main valve 621 and hydrofuge divides valve 622, ventilation dewetting
The moisture in area 12 is in charge of 612 by hydrofuge and is expelled directly out into hydrofuge supervisor 611, when needing to recycle, then closes hydrofuge main valve
It 621 and opens hydrofuge and divides valve 622, the moisture in ventilation dewetting area 12 is in charge of 612 by hydrofuge and is entered after hydrofuges supervisor 611 through connecting
Pipeline 72 drains into superheated steam heat condensation recovering device 71.
In embodiment, air intake assembly 5 includes air inlet pipe group 51 and air inlet valve group 52, and air inlet pipe group 51 is installed in outside kiln body 1
Wall is simultaneously connected to ventilation dewetting area 12, and air inlet valve group 52 is arranged in air inlet pipe group 51.In the structure, air inlet pipe group 51 is used for will
Humid air is sent into ventilation dewetting area 12 as dried medium, and heated group 3 is sent to the effect of dry section 11, and air inlet valve group 52 is for controlling
51 on-off of air inlet pipe group processed, so as to running mode switching.
In the present embodiment, air inlet pipe group 51 includes that air inlet supervisor's 511 and Duo Gen air inlet is in charge of 512, and each air inlet is in charge of between 512
Every being installed in 1 outer wall of kiln body and being connected to ventilation dewetting area 12, connect each air inlet is in charge of 512 to air inlet supervisor 511 simultaneously, air inlet
Valve group 52 includes air inlet main valve 521 and the air inlet for being in charge of 522 quantity Matchings with air inlet divides valve 512, and the setting of air inlet main valve 521 exists
On air inlet supervisor 511, each air inlet divides the setting of valve 522 to be in charge of on 512 in corresponding air inlet.In the structure, when needing humid air
When being sent into ventilation dewetting area 12 as dried medium, then open air inlet main valve 521 and air inlet divide valve 512, dried medium by into
Gas supervisor 511 is in charge of 512 arrival ventilation dewetting areas 12 into air inlet.
It further include warm and humid sensor 8 and operating condition machine 9 in the present embodiment, warm and humid sensor 8 is installed in 1 inner wall of kiln body and position
In dry section 11, operating condition machine 9 and blower fan group 2, heating group 3, steam-injection group 4, air inlet main valve 521, air inlet divide valve 522, hydrofuge main valve
621, hydrofuge divides valve 622, superheated steam heat condensation recovering device 71 and the connection of 73 signal of shut-off valve.In the structure, warm and humid sensing
Temperature and humidity, moisture content and the core layer temperature of medium in 8 real-time detection kiln of device, operating condition machine 9 is according to warm and humid sensor 8
Feedback signal control blower fan group 2, heating group 3, steam-injection group 4, air inlet main valve 521, air inlet divide valve 522, hydrofuge main valve 621, hydrofuge
Divide the opening and closing of valve 622, superheated steam heat condensation recovering device 71 and shut-off valve 73.
In the present embodiment, kiln body 1 is provided with door opening 15, and the wicket for being opened and closed to door opening 15 is installed in kiln body 1
16.The disengaging kiln of timber is realized by opening and closing wicket 16.
Dry kiln embodiment 2:
Fig. 5 to Fig. 7 shows second of embodiment of the multi-purpose dry kiln of the joint for timber of the invention, the dry kiln and implementation
Example 1 is essentially identical, and difference is only that: in the present embodiment, including kiln body 1, being provided in kiln body 1 for placing material heap to be dried
Dry section 11, the side of dry section 11 are provided with ventilation dewetting area 12, air inlet 13 and moisture exhausting port 14 are provided at the top of kiln body 1,
Be installed with blower fan group 2, heating group 3 and steam-injection group 4 in ventilation dewetting area 12,1 outer wall of kiln body be installed with respectively with air inlet 13 and
The air intake assembly 5 and hydrofuge component 6 that moisture exhausting port 14 is connected to, hydrofuge component 6 are connected with superheated steam heat condensate recovery system 7.
The multipurpose that the dry kiln realizes single dry kiln uses: independent conventional drying；Independent superheat steam drying；Routine-overheat
Steam Combined is dry；Its application field for having expanded dry kiln and using flexible.Its short processing time, high production efficiency: this
Efficient, the energy saving and environmental protection that invention realizes timber is dry, and drying time can shorten 30% or more, and substantially reduces dry useless
Gas discharge.Energy consumption and production cost are few: mode of the present invention built in by blower fan group 2 reduces power consumption, and pass through
Superheated steam heat condensate recovery system 7 recycles the thermal energy being discharged in drying process, reduces thermal energy consumption, reduces drying cost,
With significant economic benefit.
Dry kiln application method embodiment 1:
The first embodiment of the present invention for the application method of the multi-purpose dry kiln of joint of timber, comprising the following steps:
S1: timber is into kiln: in the dry section 11 that timber is stacked into kiln body 1 in the form of stacking；
S2: heating drying: closing superheated steam heat condensate recovery system 7, closes air intake assembly 5, hydrofuge component 6, opens wind
Unit 2 and heating group 3 make dry kiln medium temperature be increased to 40 DEG C, keep the temperature 0.5h, open steam-injection group 4, make medium in dry kiln
Humidity is maintained at 95-100%, is gradually heated to the temperature of drying schedule first stage, and keeps the temperature 1-2h/cm；Open air intake assembly
5 and hydrofuge component 6, into drying stage, control of temperature and humidity is executed according to drying schedule in drying process, drying process pipe
Reason, operation are consistent with existing conventional drying methods, and in drying process, dried medium maximum temperature is no more than 100 DEG C, and timber is done
The dry moisture content that arrives is 6-15%；
S3: high humidity Balance Treatment: after drying, air intake assembly 5 and hydrofuge component 6 is closed, drying kiln for drying medium temperature is made
Degree is maintained at the temperature of drying schedule final stage, and humidity of media, processing time execute according to drying schedule in dry kiln；
S4: timber kiln discharge: when dry section 11 by the moisture content deviation of dry sawn timber less than 5% after, terminate entire drying process, to wood
Material temperature is cooled to be no more than 15 DEG C higher than outdoor environment temperature after kiln discharge, and the timber after drying is placed in siccative canopy and is carried out
Balance Treatment.
The application method is independent conventional drying application method, when using independent conventional drying methods desiccated wood, sawn timber
Accumulation, drying process control with management etc. operate it is consistent with existing conventional drying methods.In drying process, closes overheat and steam
Vapour heat condensate recovery system 7 opens air intake assembly 5 and is passed through humid air as dried medium, opens blower fan group 2,3 and of heating group
Steam-injection group 4 is preheated and is dried to timber using gradually temperature-raising method.
Dry kiln application method embodiment 2:
Second embodiment of the present invention for the application method of the multi-purpose dry kiln of joint of timber, comprising the following steps:
S1: timber is into kiln: in the dry section 11 that timber is stacked into kiln body 1 in the form of stacking；
S2: heating drying: closing air intake assembly 5, opens superheated steam heat condensate recovery system 7 and hydrofuge divides valve 622, open
Blower fan group 2, heating group 3 and steam-injection group 4 are preheated and are dried to timber using gradually temperature-raising method, first will dry kiln temperature
Degree is increased to 35-45 DEG C, and keeps the temperature 0.5-2h, then proceedes to will handle medium temperature and is increased to 70-80 DEG C and carries out in advance to timber
Heat, and keep the temperature 0.5-1.0h/cm, makes the abundant heat penetration of timber again, and in temperature-rise period, heating rate control rises in 5-10 DEG C/h
During temperature, dry indoor humidity is maintained at 95% or more, after humidity reaches 95%, closes steam-injection group 4；Heat preservation terminates
Afterwards, then with the heating rate of 5-20 DEG C/h kiln temperature is warming up to 110 DEG C -140 DEG C of dryer settings temperature, it in this case, will be wooden
It is 2-12% that material, which is dried to moisture content,；
S3: high humidity Balance Treatment: heating group 3 is closed, dried medium temperature is made to be reduced to 80 DEG C -90 DEG C；Hydrofuge component 6 is closed,
It is again turned on heating system 3, kiln temperature is made to maintain 80 DEG C -90 DEG C, and high humidity Balance Treatment is carried out to timber at this temperature；It is high
Temperature, humidity and the time parameter of wet Balance Treatment are arranged consistent with usual drying processes；
S4: timber kiln discharge: after the moisture content deviation of dry section 11 is less than 5%, terminating entire drying process, cold to Wood temperature
But it arrives and is higher than kiln discharge after outdoor environment temperature is no more than 15 DEG C, and the timber after drying is placed in siccative canopy and is balanced place
Reason.
The application method is independent superheat steam drying application method, is with the wet Lumber of Pinus Massoniana that first moisture content is 110%
Length is 2.0m by example, and width is natural width, with a thickness of 25mm, the wet Lumber of Pinus Massoniana that first moisture content is 110%, according to
LY/T1068-2012 standard carries out stacking processing, material stack height 1.5m, material heap width 1.5m, parting bead section to Lumber of Pinus Massoniana
Size 25mm(thickness) × 30mm(width), length 1.6m.Material heap is sent in the dry section 11 of kiln body 1 using fork truck, is closed
Air intake assembly 5 is closed, the hydrofuge in superheated steam heat condensate recovery system 7 and hydrofuge component 6 is opened and divides valve 622, open blower
Group 2, heating group 3 and steam-injection group 4, are preheated and are dried to timber using gradually temperature-raising method, first by dry kiln temperature liter
Height arrives 35-45 DEG C, keeps the temperature 1 hour, makes the abundant heat penetration of timber, then proceed to will to handle medium temperature be increased to 75 DEG C to sawn timber into
Row preheating, and 2 hours are kept the temperature, make the abundant heat penetration of sawn timber again, in temperature-rise period, heating rate controls the heating at 6 DEG C/h
In the process, dry indoor humidity is maintained at 95% or more, after humidity reaches 95%, closes steam-injection group 4；After heat preservation,
Kiln temperature is warming up to 135 DEG C of dryer settings temperature with the heating rate of 10 DEG C/h again, in this case, by the drying of wood to aqueous
Rate is 4%；After drying, heating group 3 is closed, dried medium temperature is made to be reduced to 85 DEG C；Hydrofuge component 6 is closed, is again turned on
Heating group 3 makes kiln temperature maintain 85 DEG C, and carries out high humidity Balance Treatment to timber at this temperature, keeps 4h in this case,
It is then shut off heating group 3, the kiln discharge after Wood temperature is cooled to and is no more than 15 DEG C higher than outdoor environment temperature.After finally will be dry
Timber be placed in siccative canopy and be balanced processing.In this example, use the present invention to first moisture content for 110% masson pine
Timber is dried, and drying time 26h, rate of drying is fast, and dry mass reaches second level Drying quality of sawn timber standard.
Dry kiln application method embodiment 3:
The third embodiment of the present invention for the application method of the multi-purpose dry kiln of joint of timber, comprising the following steps:
S1: timber is into kiln: timber being stacked into the form of stacking in the dry section 11 of dry kiln body 1；
S2: conventional heating drying: superheated steam heat condensate recovery system 7 is closed, air intake assembly 5, hydrofuge component 6 is closed, opens
Blower fan group 2 and heating group 3 are opened, dry kiln medium temperature is made to be increased to 40 DEG C, keeps the temperature 0.5h；Steam-injection group 4 is opened, is made in dry kiln
Humidity of media is maintained at 95-100%；It is gradually heated to the temperature of drying schedule first stage, and keeps the temperature 1-2h/cm；Open air inlet
Component 5 and hydrofuge component 6, into drying stage, control of temperature and humidity is executed according to drying schedule in drying process；It is dried
Thread management, operation are consistent with existing conventional drying methods；In drying process, dried medium maximum temperature is no more than 100 DEG C, will be wooden
Material moisture content is dried to 25% hereinafter, but not less than 20%；
S3: superheat steam drying: closing air intake assembly 5 and hydrofuge component 6, opens steam-injection group 4, keeps the humidity in dry kiln
95% or more, and the temperature of dried medium is stepped up to 100 DEG C, heating rate is controlled in 5-10 DEG C/h, and in this case
It is kept for 1-2 hours, opens hydrofuge and divide valve 622, hydrofuge main valve 621 remains off, and opens superheated steam heat condensing recovery
System 7 further increases dried medium temperature, its temperature is increased to 110-140 DEG C, is done in this case to timber
Sawn timber moisture content is reduced to 2-12% by dry processing；
S4: high humidity Balance Treatment: heating group 3 is closed, dried medium temperature is made to be reduced to 80 DEG C -90 DEG C；Hydrofuge component 6 is closed,
It is again turned on heating group 3, kiln temperature is made to maintain 80 DEG C -90 DEG C, and high humidity Balance Treatment is carried out to timber at this temperature；High humidity
Temperature, humidity and the time parameter of Balance Treatment are arranged consistent with usual drying processes；
S5: timber kiln discharge: when dry section 11 by the moisture content deviation of dry sawn timber less than 5% after, terminate entire drying process, to wood
Material temperature is cooled to be no more than 15 DEG C higher than outdoor environment temperature after kiln discharge, and the timber after drying is placed in siccative canopy and is carried out
Balance Treatment.
The application method is routine-superheated steam combined drying application method, the wet China fir of fast-growing for being 122% with first moisture content
It is 2.0m by length for wood saw material, width is natural width, with a thickness of 25mm, the wet China fir sawn timber that first moisture content is 122%,
Stacking processing, material stack height 1.2m, material heap width 1.2m are carried out to China fir sawn timber according to LY/T1068-2012 standard, parting bead breaks
Face size 25mm(thickness) × 30mm(width), length 1.3m.Material heap is sent in the dry section 11 of kiln body 1 using fork truck.
Superheated steam heat condensate recovery system 7 is closed, air intake assembly 5 is opened and is passed through humid air as dried medium, open blower fan group
2, heating group 3 and steam-injection group 4 are preheated and are dried to timber using gradually temperature-raising method, first increased dry kiln temperature
To 40 DEG C, and 1h is kept the temperature, then open hydrofuge component 6, continue dried medium temperature increasing set temperature, sawn timber carried out pre-
Heat and drying process.The setting of the pre-heat treatment parameter and drying parameter (temperature, humidity) and the control of drying process in drying process
System is executed according to standard LY/T1068-2012 standard.Drying schedule selects the 3-1 benchmark in the standard.It will using the benchmark
Moisture content is dried to 22% or so.It is then shut off air intake assembly 5 and hydrofuge component 6, steam-injection group 4 is opened, into dry section 11
High-temperature vapor is sprayed into, the humidity in dry kiln is made to be maintained at 95% or more, and is stepped up the temperature of dried medium to 100 DEG C,
Heating rate is controlled at 6 DEG C/h, and is kept for 1.5 hours in this case.It opens hydrofuge and divides valve 622, hydrofuge main valve 621 is protected
Closed state is held, superheated steam heat condensate recovery system 7 is opened, dried medium temperature is further increased, by its temperature liter
Height is in this case dried sawn timber to 130 DEG C, and sawn timber moisture content is reduced to 4%, is finally adjusted to sawn timber
Wet Balance Treatment.Temperature, humidity and the time parameter of damping Balance Treatment are arranged consistent with usual drying processes.
Although the present invention is disclosed as above with preferred embodiment, however, it is not intended to limit the invention.It is any to be familiar with ability
The technical staff in domain, without deviating from the scope of the technical scheme of the present invention, all using the technology contents pair of the disclosure above
Technical solution of the present invention makes many possible changes and modifications or equivalent example modified to equivalent change.Therefore, all
Without departing from the content of technical solution of the present invention, according to the present invention technical spirit any simple modification made to the above embodiment,
Equivalent variations and modification, all shall fall within the protection scope of the technical scheme of the invention.
Claims (12)
1. a kind of joint for timber is mostly used dry kiln, it is characterised in that: including kiln body (1), be provided in the kiln body (1)
For placing the dry section (11) of material heap to be dried, the top or side of the dry section (11) are provided with ventilation dewetting area
(12), it is provided with air inlet (13) and moisture exhausting port (14) at the top of the kiln body (1), is installed with wind in the ventilation dewetting area (12)
Unit (2), heating group (3) and steam-injection group (4), kiln body (1) outer wall be installed with respectively with air inlet (13) and moisture exhausting port
(14) air intake assembly (5) and hydrofuge component (6) being connected to, the hydrofuge component (6) are connected with superheated steam heat condensing recovery
System (7).
2. the joint according to claim 1 for timber is mostly used dry kiln, it is characterised in that: the superheated steam heat
Condensate recovery system (7) includes superheated steam heat condensation recovering device (71), connecting pipe (72) and shut-off valve (73), the company
Adapter tube road (72) one end is docked with hydrofuge component (6), and the other end is docked with superheated steam heat condensation recovering device (71), and described section
Only valve (73) is arranged on connecting pipe (72).
3. the joint according to claim 2 for timber is mostly used dry kiln, it is characterised in that: the superheated steam heat
Superheated steam import (711), cooling water inlet (712), hot water outlet (713) and condensed water is provided on condensation recovering device (71) to go out
Mouth (714), the connecting pipe (72) are docked with superheated steam import (711).
4. the joint according to claim 3 for timber is mostly used dry kiln, it is characterised in that: the hydrofuge component (6)
Including dehumidification tube group (61) and hydrofuge valve group (62), the dehumidification tube group (61) is installed in kiln body (1) outer wall and and ventilation dewetting
Area (12) connection, the hydrofuge valve group (62) are arranged on dehumidification tube group (61), the connecting pipe (72) and dehumidification tube group
(61) it docks.
5. the joint according to claim 4 for timber is mostly used dry kiln, it is characterised in that: the dehumidification tube group (61)
Including hydrofuge supervisor (611) He Duogen hydrofuge be in charge of (612), each hydrofuge be in charge of (612) interval be installed in kiln body (1) outer wall and with
Ventilation dewetting area (12) connection, the hydrofuge supervisor (611) connect each hydrofuge simultaneously and are in charge of (612), the hydrofuge valve group
It (62) include that hydrofuge main valve (621) and the hydrofuge for being in charge of (612) quantity Matching with hydrofuge divide valve (622), the hydrofuge main valve
(621) setting is on hydrofuge supervisor (611), and each hydrofuge divides valve (622) setting to be in charge of on (612) in corresponding hydrofuge, the company
It is docked with hydrofuge supervisor (611) in adapter tube road (72).
6. the joint according to claim 4 for timber is mostly used dry kiln, it is characterised in that: the air intake assembly (5)
Including air inlet pipe group (51) and air inlet valve group (52), the air inlet pipe group (51) is installed in kiln body (1) outer wall and and ventilation dewetting
Area (12) connection, the air inlet valve group (52) are arranged on air inlet pipe group (51).
7. the joint according to claim 6 for timber is mostly used dry kiln, it is characterised in that: the air inlet pipe group (51)
Including air inlet supervisor (511) He Duogen air inlet be in charge of (512), each air inlet be in charge of (512) interval be installed in kiln body (1) outer wall and with
Ventilation dewetting area (12) connection, the air inlet supervisor (511) connect each air inlet simultaneously and are in charge of (512), the air inlet valve group
It (52) include that air inlet main valve (521) and the air inlet for being in charge of (522) quantity Matching with air inlet divide valve (512), the air inlet main valve
(521) on air inlet supervisor (511), each air inlet divides valve (522) setting to be in charge of on (512) in corresponding air inlet for setting.
8. the joint according to claim 7 for timber is mostly used dry kiln, it is characterised in that: further include warm and humid sensor
(8) it is installed in kiln body (1) inner wall with operating condition machine (9), the warm and humid sensor (8) and is located at dry section (11), the operating condition machine
(9) with blower fan group (2), heating group (3), steam-injection group (4), air inlet main valve (521), air inlet divide valve (522), hydrofuge main valve (621),
Hydrofuge divides valve (622), superheated steam heat condensation recovering device (71) and the connection of shut-off valve (73) signal.
9. the joint according to any one of claim 1 to 8 for timber is mostly used dry kiln, it is characterised in that: described
Kiln body (1) is provided with door opening (15), and the wicket (16) for being opened and closed to the door opening (15) is installed in kiln body (1).
10. a kind of application method based on the multi-purpose dry kiln of joint for being used for timber described in any one of claims 1 to 9,
It is characterized by comprising following steps:
S1: timber is into kiln: timber being stacked into the form of stacking in the dry section (11) of kiln body (1)；
S2: heating drying: closing superheated steam heat condensate recovery system (7), closes air intake assembly (5), hydrofuge component (6),
Blower fan group (2) and heating group (3) are opened, dry kiln medium temperature is made to be increased to 40 DEG C, keeps the temperature 0.5h;It opens steam-injection group (4), makes
Humidity of media is maintained at 95-100% in dry kiln, is gradually heated to the temperature of drying schedule first stage, and keeps the temperature 1-2h/cm；
Air intake assembly (5) and hydrofuge component (6) are opened, into drying stage, control of temperature and humidity is according to drying schedule in drying process
It executes, drying process management, operation are consistent with existing conventional drying methods, and in drying process, dried medium maximum temperature does not surpass
100 DEG C are crossed, is 6-15% by the drying of wood to moisture content；
S3: high humidity Balance Treatment: after drying, air intake assembly (5) and hydrofuge component (6) is closed, drying kiln for drying is made to be situated between
Matter temperature is maintained at the temperature of drying schedule final stage, and humidity of media, processing time execute according to drying schedule in dry kiln；
S4: timber kiln discharge: when dry section (11) by the moisture content deviation of dry sawn timber less than 5% after, terminate entire drying process, to
Wood temperature be cooled to higher than outdoor environment temperature be no more than 15 DEG C after kiln discharge, and by the timber after drying be placed in siccative canopy into
Row Balance Treatment.
11. a kind of application method based on the multi-purpose dry kiln of joint for being used for timber described in any one of claim 5 to 9,
It is characterized by comprising following steps:
S1: timber is into kiln: timber being stacked into the form of stacking in the dry section (11) of kiln body (1)；
S2: heating drying: closing air intake assembly (5), opens superheated steam heat condensate recovery system (7) and hydrofuge divides valve
(622), blower fan group (2), heating group (3) and steam-injection group (4) are opened, timber is carried out at preheating and drying using gradually temperature-raising method
Reason, is first increased to 35-45 DEG C for dry kiln temperature, and keep the temperature 0.5-2h, medium temperature will be handled by, which then proceeding to, is increased to 70-80
DEG C timber is preheated, and keep the temperature 0.5-1.0h/cm, makes the abundant heat penetration of timber again, in temperature-rise period, heating rate control
In 5-10 DEG C/h, temperature-rise period, dry indoor humidity is maintained at 95% or more, after humidity reaches 95%, closes and steams
Group (4)；After heat preservation, then with the heating rate of 5-20 DEG C/h kiln temperature is warming up to 110 DEG C -140 DEG C of dryer settings temperature,
It under this state, is 2-12% by the drying of wood to moisture content；
S3: it high humidity Balance Treatment: closes heating group (3), dried medium temperature is made to be reduced to 80 DEG C -90 DEG C；Close hydrofuge component
(6), it is again turned on and closes heating group (3), kiln temperature is made to maintain 80 DEG C -90 DEG C, and it is flat to carry out high humidity to timber at this temperature
Weighing apparatus processing；Temperature, humidity and the time parameter of high humidity Balance Treatment are arranged consistent with usual drying processes；
S4: timber kiln discharge: when dry section (11) by the moisture content deviation of dried sawn timber less than 5% after, terminate entire drying process,
The kiln discharge after Wood temperature is cooled to and is no more than 15 DEG C higher than outdoor environment temperature, and the timber after drying is placed in siccative canopy
It is balanced processing.
12. a kind of application method based on the multi-purpose dry kiln of joint for being used for timber described in any one of claim 5 to 9,
It is characterized by comprising following steps:
S1: timber is into kiln: timber being stacked into the form of stacking in the dry section (11) of dry kiln body 1；
S2: it conventional heating drying: closes superheated steam heat condensate recovery system (7), closes air intake assembly (5), hydrofuge component
(6), blower fan group (2) and heating group (3) are opened, dry kiln medium temperature is made to be increased to 40 DEG C, keeps the temperature 0.5h；Open steam-injection group
(4), humidity of media in dry kiln is made to be maintained at 95-100%；It is gradually heated to the temperature of drying schedule first stage, and keeps the temperature 1-
2h/cm；Air intake assembly (5) and hydrofuge component (6) are opened, into drying stage, control of temperature and humidity is according to doing in drying process
Dry benchmark executes；Drying process management, operation are consistent with existing conventional drying methods；In drying process, the dried medium highest temperature
Degree is no more than 100 DEG C, and moisture content is dried to 25% hereinafter, but not less than 20%；
S3: superheat steam drying: closing air intake assembly (5) and hydrofuge component (6), opens steam-injection group (4), makes wet in dry kiln
Degree is maintained at 95% or more, and is stepped up the temperature of dried medium to 100 DEG C, and heating rate is controlled in 5-10 DEG C/h, and herein
It is kept for 1-2 hours under state, opens hydrofuge and divide valve (622), hydrofuge main valve (621) remains off, and opens superheated steam heat
It measures condensate recovery system (7), further increases dried medium temperature, its temperature is increased to 110-140 DEG C, in this case
Timber is dried, sawn timber moisture content is reduced to 2-12%；
S4: it high humidity Balance Treatment: closes heating group (3), dried medium temperature is made to be reduced to 80 DEG C -90 DEG C；Close hydrofuge component
(6), heating group (3) are again turned on, kiln temperature is made to maintain 80 DEG C -90 DEG C, and timber is carried out at high humidity balance at this temperature
Reason；Temperature, humidity and the time parameter of high humidity Balance Treatment are arranged consistent with usual drying processes；
S5: timber kiln discharge: when dry section (11) by the moisture content deviation of dry sawn timber less than 5% after, terminate entire drying process, to
Wood temperature be cooled to higher than outdoor environment temperature be no more than 15 DEG C after kiln discharge, and by the timber after drying be placed in siccative canopy into
Row Balance Treatment.
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| CN111438780A (en) * | 2020-04-20 | 2020-07-24 | 中南林业科技大学 | Wood superheated steam drying and heat treatment integrated device and use method |
| CN111623646A (en) * | 2020-05-28 | 2020-09-04 | 上海尚禹环保科技有限公司 | Novel method for condensing gas |
| CN112815639A (en) * | 2020-12-31 | 2021-05-18 | 哈尔滨傲世干燥设备制造有限公司 | Bamboo carbonization and drying device and processing method thereof |
| CN112973370A (en) * | 2021-03-01 | 2021-06-18 | 北京林业大学 | VOC (volatile organic compound) treatment and water recovery device and method for wood heat treatment |
| CN113606889A (en) * | 2021-07-26 | 2021-11-05 | 北京林业大学 | Device for drying wood and recycling heat energy |
| AT17554U1 (en) * | 2021-03-09 | 2022-07-15 | Herbert Hauptkorn | Device and method for drying objects and/or materials, in particular wood |
| CN115534042A (en) * | 2022-09-06 | 2022-12-30 | 周村仇潍红木家具厂 | Drying process for splicing non-cracking panels of mortise and tenon structures of redwood furniture |
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| AT17554U1 (en) * | 2021-03-09 | 2022-07-15 | Herbert Hauptkorn | Device and method for drying objects and/or materials, in particular wood |
| CN113606889A (en) * | 2021-07-26 | 2021-11-05 | 北京林业大学 | Device for drying wood and recycling heat energy |
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