CN107576181A - A kind of veneer intermittent movement heat injection formula veneer dryer - Google Patents
A kind of veneer intermittent movement heat injection formula veneer dryer Download PDFInfo
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- CN107576181A CN107576181A CN201710960730.XA CN201710960730A CN107576181A CN 107576181 A CN107576181 A CN 107576181A CN 201710960730 A CN201710960730 A CN 201710960730A CN 107576181 A CN107576181 A CN 107576181A
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- veneer
- heat injection
- pressing plate
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- intermittent movement
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Abstract
The invention discloses a kind of veneer intermittent movement heat injection formula drying equipment, including：The frame-type casing for being used for support installation whole device of veneer import and veneer outlet, combined type heat injection pressing plate moving up and down, the combined type support pressing plate of fixation, oil pressure cylinder, veneer Control System for Transmission Belt, caloic transmission heat injection control system.First, the correct position dry veneer will be treated be transported between portable heat injection pressing plate and the pressing plate of fixed support, switch is formed to open, pressing plate closure simultaneously, by veneer clamping therebetween, now open heat injection system, by hot-air, or the groove that superheated steam passes through veneer, crack, crack, lumen, the passage that pit is formed, it is directly injected into veneer and spreads, veneer is directly heated, compared with prior art, the thermal efficiency is high, homogeneous heating, rate of drying is fast, the dry time can not only be greatly shortened, improve the drying efficiency of veneer, and it is obvious to reduce energy consumption, veneer drying quality is also significantly improved.
Description
Technical field
The present invention relates to the processing unit (plant) technical field of timber, more particularly to a kind of drying device of wood single-plate.
Background technology
Veneer is to use peeler by rounding into certain thickness thin plate, former in order to improve the quality of rotary cut venner
Wood needs have of a relatively high moisture, causes rotary cut venner also to contain a certain amount of moisture；In the following process process of veneer
In, veneer, which contains relatively large number of moisture, large effect to product quality, therefore needs veneer to be dried processing, with row
Except unnecessary moisture.
Veneer drying is glued board, solid wooden compound floor base material, container bottom board, integrated timber, laminate, artificial Recombinant Wood
Etc. the critical process in production process, and energy consumption maximum, the main technique link to yield poorly.At present, conventional timber
Veneer drying method includes：Air drying method, convective drying method, heat pressing type seasoning, radiant drying method.
Air drying, it is that wood single-plate is placed under draughty natural environmental condition, is dried；Dry matter
The position for depending on veneer and placing, the temperature of natural environment, humidity, speed air flow are measured, list is easily caused in drying process
Moisture content is uneven in plate benging deformation, veneer, ftractures, warpage.
Convective drying is that air and material are heated after heat exchange as thermal source by the use of steam caused by boiler, up to tens
In the case structure of rice, heated air is blown into some air blowers in parallel, forms air guided flowing, pair roller barrel
The veneer of (or guipure) transmission is dried, and is that automaticity is higher the advantages of the equipment, still, the equipment that convection type is dried
Expensive, floor space is larger, high energy consumption, and drying cost is high, in terms of veneer thickness, to by the thickness requirement of dried single board
Higher, to veneer of the thickness less than 0.5mm and thickness, the quality of the veneer drying more than 2.5mm is all poor；It is aqueous at the beginning of veneer
In terms of rate, veneer is easy to crack when the first moisture content of veneer is less than 55.00%, and Veneer moisture is too low after also easily causing drying, makes
Bonding quality declines, while fire easily occurs in drying process.
Hot-pressing drying, it is between timber is placed in into hot plate, to be allowed to thermal dehydration under certain pressure conditions, be by connecing
Wood single-plate is dried the mode for touching heat transfer；Because heating plate heat supply temperature is high, contacted closely with by bole, heat output
Greatly, wood internal can reach high temperature soon, steam pressure is improved rapidly, promote shifting of the wood internal moisture to outside
It is dynamic.But, on the one hand, due to the effect of pressure, its normal shrinkage, too high heat will be greater than by the contraction on dry veneer thickness
Pressure temperature and pressure can not only bring larger wood volume error, and can deepen wood color, and it is hard to produce more serious surface
Change and ftracture；On the other hand, there is no exhaust passage on the heating platen of hot-pressing drying machine, when the moisture in veneer is heated to vaporization
Afterwards, vapor only relies on 4 aspects of veneer and is exhausted, leaving area very little and make exhaust problem, when not being vented fully just
Release, easily cause veneer and burst；Meanwhile the equipment price of hot-pressing drying is expensive, floor space is larger, high energy consumption, drying cost
It is high.
Radiant drying is that wet stock heating is dried by way of radiation；Radiation dryer production intensity is big, if
Standby compact, using flexible.But because wood single-plate is anisotropic material, there is some difference for the moisture content of different parts,
Therefore, it is also different to the absorbability of radiant heat, cause the different parts temperature of heated veneer also different, veneer drying effect
Fruit is also different, there is the influence for reflecting, penetrating, reflect, absorbing in heating process, also makes each site absorption of veneer different
Heat, veneer drying effect is influenceed, meanwhile, there is also the situation that energy expenditure is larger.
Chinese patent CN204513956U discloses a kind of vertical veneer drying machine, including heating assembly, conveying device, institute
It is the side shield in conveyer belt and its connection of both sides interval to state conveying device, forms chain, wood single-plate is limited to vertical
In the chain of conveying；Described heating assembly is respectively arranged in wood single-plate both sides, the heating assembly and thermal source UNICOM, its
Face wood single-plate side is provided with wind pushing hole, will heat assembly caused by hot blast blow to wood single-plate two front, veneer is entered
Row drying；Although the drying machine can accelerate dry progress, wood single-plate vertical direction is placed, veneer is in drying machine
Interior extremely easy deformation.
Chinese patent CN105066625A discloses a kind of wood single-plate drying device, including drying shed, drier and
Haulage mechanism, it is the advantages of described in scheme, wood single-plate is formed in the drying process, in the middle part of hot bellows group to be led to for wood single-plate
The transport channel crossed, two hot bellows ends being oppositely arranged are provided with multiple jet pipes and soft briquetting, and the heat in blast pipe is empty
Gas is entered in hot bellows, the hot blast that the hot-air in hot bellows is come out from jet pipe can homogeneous radiation on wood single-plate surface,
Realize heat transfer；By air-heater, air jet pipe to the uniform drying of wood single-plate, and paired soft briquetting and paired biography
Send band to keep its straight when wood single-plate transmits, wood single-plate is not produced flexural deformation.
Chinese patent CN203249468U discloses a kind of conduction heating Efficient Wood veneer drying device, including：Heat conduction
Oily house steward, conduction oil oil-feed bobbin carriage, S-shaped coiled radiator, door, column, conduction oil oil return bobbin carriage, conduction oil oil return house steward and top
Canopy support, veneer is placed directly within S-shaped coiled radiator after stacking, heated by way of heat transfer, using high-temperature heat-conductive
Oil is used as heat transfer medium, conduction oil reciprocal closed circulation in pipeline.
Chinese patent CN203629237U discloses a kind of veneer dryer, including：Plane is continuously arranged alternately multiple
Heating group and multiple driving drum groups, during veneer drying, veneer is conveyed to and through fixedly secured by driving drum
Between upper and lower heating plate, simultaneously dried single board is heated by way of radiant heating.
Chinese patent CN103759505A discloses a kind of veneer drying method, including：Multiple predry plies are stacked
Put between two heating platens of hot press, two heating platens of control carry out pressurized, heated to predry veneer, when every veneer
When moisture content is all down to below threshold values, release is taken out by dry veneer；In hot press, veneer is not flexible, cracking, dried
Veneer quality is good.
A kind of steam discharge of the similar multi-daylight press with simultaneous close mechanism is provided in Chinese patent ZL98236861.5
The veneer dryer of Intermittent Contact formula, for water evaporation rate in increase veneer, need to use type of respiration during veneer drying
Drying mode, meanwhile, using sandwich construction batch (-type) hot-pressing drying when, the charge and discharge operations of veneer are difficult, waste time and energy, single
Plate breakage rate is very high, and veneer drying efficiency is also very low.
A kind of energy-saving veneer dryer is provided in Chinese patent ZL00216863.4, its principle and content with it is above-mentioned specially
Profit is basically identical, increase only one and enters discharging machine structure with movable jaw, although veneer disengaging is comparatively more convenient,
It is still very big to load and unload veneer breakage, production efficiency does not improve.
Provide a kind of individual layer contact progressive plate drier in Chinese patent ZL200520120414.4, its principle and
Content is also essentially the same with above-mentioned patent, simply placed transport network band, such a veneer drying mode in the interlayer of single drylight presses
Compared to other, there is the advantages of veneer disengaging single drylight presses are more convenient and veneer breakage rate reduces, but there is also veneer
Drying efficiency it is still very low the shortcomings that, the pressure of especially operating cylinder is very big, and on the one hand the requirement to frame is higher, makes system
Making difficulty and cost all increases, and on the other hand, the compression ratio of veneer increases, and the wood volume error of veneer is also larger.
The content of the invention
In order to overcome the above-mentioned deficiencies of the prior art, the invention provides a kind of veneer intermittent movement heat injection formula veneer drying
Machine, present invention seek to address that the problem of energy consumption, drying efficiency, curling in wood single-plate drying process, warpage, there is provided Yi Zhongjie
The veneer drying that structure is simple, easy to use, simple to operate, energy consumption is low, dry mass is good, drying efficiency is high, drying cost is low is set
It is standby.
To achieve these goals, the technical solution that the present invention uses includes herein below：
A kind of veneer intermittent movement heat injection formula veneer dryer, including be used to support provided with what veneer import and veneer exported
The frame-type casing of installation whole device, combined type heat injection pressing plate moving up and down, the combined type support pressing plate of fixation, pressure
Oil cylinder, veneer Control System for Transmission Belt, caloic transmission heat injection control system；Described oil pressure cylinder one end connection can move up and down
Combined type heat injection pressing plate, the other end is connected on casing.
Combined type heat injection pressing plate moving up and down and fixed combined type support pressing plate are each independent, correspond to up and down, into
To setting, the passage of horizontal direction is left between two pressing plates, is passed through for veneer heat injection, veneer interval and transmission.
Combined type heat injection pressing plate moving up and down and fixed combined type support pressing plate, are at least 1 pair in casing.
Heat injection pressing plate is that one piece of heat injection pressing plate of monoblock type is concatenated with the high temperature resistant cushion with heat injection hole and formed, and is provided with it
The duct of thermal medium circulation, vertical direction are provided with the heat injection through hole of insertion, internal heat-insulated processing.
Heat injection pressing plate is successively by pressing plate, heat insulation tie-plate, heat injection chamber groove frame, heat injection orifice plate string by fastening positioning bolt system
The combined type heat injection pressing plate connect, the affixed high temperature resistant cushion with heat injection hole below heat injection orifice plate.
The heat injection air cavity of horizontal direction is provided with described heat injection pressing plate, the heat injection that vertical direction is provided with heat injection plate is led to
Hole, in its lower section affixed resistant to elevated temperatures cushion, and heat injection through hole is provided with corresponding position.
The thickness of heat injection orifice plate is in the range of 1mm~90mm, and the diameter in the heat injection hole on heat injection orifice plate is in 1mm~20mm models
In enclosing, the distance between heat injection hole is in the range of 3mm~60mm.
The thickness of heat injection orifice plate is in the range of 5mm~20mm, and the diameter in the heat injection hole on heat injection orifice plate is in 3mm~10mm models
In enclosing, the distance between heat injection hole is in the range of 8mm~20mm.
The combined type support pressing plate of described fixation is the group formed by pressing plate, heat insulation tie-plate, resistant to elevated temperatures cushion concatenation
Box-like pressing plate.
Heat injection medium is hot-air or superheated steam.
Also include the caloic transmission heat injection control of the temperature of thermal medium in control injection veneer, speed, flow, relative humidity
System.
Described veneer Control System for Transmission Belt is provided with veneer conveyer belt and veneer travel switch, controls veneer transmitting procedure
In motion and stopping.
Described caloic transmission heat injection control system is provided with thermal medium Transfer pipe and heat injection velocity of medium, flow, time
Controller.
The present invention has advantages below and effect：First, it will treat that dry veneer is transported to portable heat injection by conveyer
Correct position between heating platen and the heating platen of fixed support, form switch and open, while two pressing plate closure functions, by veneer
Clamping therebetween, now open heat injection system, by hot-air or steam or superheated steam by the groove of veneer, crack, split
The passage that gap, lumen, pit are formed, is directly injected into veneer and spreads, veneer is directly heated, and the thermal efficiency is high, heating
Uniformly, rate of drying is fast, can not only greatly shorten the dry time, improves the drying efficiency of veneer, and it is bright to reduce energy consumption
Aobvious, veneer drying quality is also significantly improved.
Brief description of the drawings
Fig. 1 is the schematic diagram of the present invention；
Fig. 2 is heat injection pore size distribution schematic diagram；
1-pressing plate；
2-heat insulation tie-plate；
3-heat injection board slot frame；
4-heat injection orifice plate；
5-resistant to elevated temperatures cushion；
6-veneer conveyer belt；
7-travel switch；
8-heat injection through hole；
The heat injection air cavity of 9-horizontal direction；
10-fastening positioning bolt system；
11-thermal medium is incubated conveyance conduit；
12-heat injection control system；
13-oil pressure cylinder；
14-veneer input port；
15-veneer delivery outlet；
16-thermal medium generator；
Heat injection through hole on 31-cushion；
Fastening through hole on 32-cushion；
33-cushion.
Embodiment
The technical solution adopted in the present invention is described further with reference to accompanying drawing：A kind of veneer intermittent movement heat injection formula
Drying equipment, including for supporting, loading and bearing the tower structure casing of operating pressure, above-mentioned tower structure casing
Framework is generally made using the higher section bar of structural strength, then sheet metal is enclosed on framework, forms frame-type knot
Structure casing, then isothermal holding is done thereon；Portable heat injection heating platen is installed in tower structure casing, support fixes hot pressing
Plate, oil pressure cylinder 13, thermal medium insulation conveyance conduit 11, heat injection control system 12, described portable heat injection heating platen be by
Pressing plate 1, heat insulation tie-plate 2, heat injection board slot frame 3, heat injection orifice plate 4 are concatenated and formed successively by fastening positioning bolt system 10, in heat injection
The affixed high temperature resistant cushion 5 with heat injection hole below orifice plate 4；The note that top half is horizontally oriented in described combination heat injection plate
Hot air cavity 9, the latter half have the heat injection through hole 8 of vertical direction, are aided with resistant to elevated temperatures cushion 5 in its lower section, and corresponding
Position is provided with heat injection through hole 8；It can be hot-air or superheated steam that heat injection, which uses thermal medium,；Described fixed support pressure
Plate is combined by pressing plate 1, heat insulation tie-plate 2, resistant to elevated temperatures cushion 5；Described one end of oil pressure cylinder 13 is fixed on pressing plate 1
On, the other end is fixed on the framework of frame-type casing；Mobile and combined heat injection pressing plate, support in the installation of above-mentioned correspondence position
Conveyer belt system is provided between fixed Combination formula pressing plate, travel switch system 7 is provided with described transmission system, when veneer passes through
Veneer conveyer belt 6, veneer input port 14 enter veneer dryer, when veneer is sent to immediately below portable heat injection pressing plate, OK
Cheng Kaiguan 7 starts, and veneer stops transporting, while starts oil pressure cylinder 13, and portable heat injection heating platen moves down, and and support
Combined press plate closing, the pressure slightly larger than heat injection medium steam pressure is imposed to veneer, now, open heat injection control system
12, thermal medium is injected into veneer, described thermal medium is produced by thermal medium generator 16, and conveyance conduit is incubated through thermal medium
11 are delivered in heat injection board slot frame 3, and the flow velocity of the thermal medium conveyed and time are controlled by heat injection control system 12, and heat injection reaches
The time of setting, close heat injection system 12 and switch, while Opening pressure oil cylinder 13 moves portable heat injection heating platen upwards, opens
Transmission system travel switch 7, veneer is transmitted, while mobile and combined heat injection pressing plate is opened, heated moisture in veneer
The instant vaporization because of suffered pressure reduction, to veneer surrounding environment loss, Veneer moisture reduces, and reaches the mesh of dried single board
, it is sent to via veneer delivery outlet 15 outside veneer dryer.
Claims (13)
- A kind of 1. veneer intermittent movement heat injection formula veneer dryer, it is characterised in that：Including provided with veneer import and veneer outlet Be used for support installation whole device frame-type casing, combined type heat injection pressing plate moving up and down, the combined type of fixation hold Backing pressure plate, oil pressure cylinder, veneer Control System for Transmission Belt, caloic transmission heat injection control system；Described oil pressure cylinder one end connects Combined type heat injection pressing plate moving up and down is connect, the other end is connected on casing.
- A kind of 2. veneer intermittent movement heat injection formula veneer dryer according to claim 1, it is characterised in that：Can on move down Dynamic combined type heat injection pressing plate and fixed combined type support pressing plate are each independent, correspond to, are arranged in pairs up and down, between two pressing plates The passage of horizontal direction is left, is passed through for veneer heat injection, veneer interval and transmission.
- A kind of 3. veneer intermittent movement heat injection formula veneer dryer according to claim 1, it is characterised in that：Can on move down Dynamic combined type heat injection pressing plate and fixed combined type support pressing plate, are 1 pair in casing.
- A kind of 4. veneer intermittent movement heat injection formula veneer dryer according to claim 1, it is characterised in that：Heat injection pressing plate It is that one piece of heat injection pressing plate of monoblock type is concatenated with the high temperature resistant cushion with heat injection hole and formed, hole provided with thermal medium circulation in it Road, vertical direction are provided with the heat injection through hole of insertion, and inside can do heat-insulated processing.
- A kind of 5. veneer intermittent movement heat injection formula veneer dryer according to claim 1, it is characterised in that：Heat injection pressing plate It is successively to be noted the combined type that pressing plate, heat insulation tie-plate, heat injection chamber groove frame, heat injection orifice plate concatenation form by fastening positioning bolt system Heating platen, the affixed high temperature resistant cushion with heat injection hole below heat injection orifice plate.
- 6. according to claim 1 and a kind of veneer intermittent movement heat injection formula veneer dryer according to claim 5, it is special Sign is：The heat injection air cavity of horizontal direction is provided with described heat injection pressing plate, the heat injection that vertical direction is provided with heat injection pressing plate is led to Hole, in its lower section affixed resistant to elevated temperatures cushion, and heat injection through hole is provided with corresponding position.
- 7. according to claim 1 and a kind of veneer intermittent movement heat injection formula veneer dryer according to claim 5, it is special Sign is：The thickness of heat injection orifice plate is typically in the range of 1mm~90mm, and the diameter in the heat injection hole on heat injection orifice plate is typically in 1mm In the range of~20mm, the distance between heat injection hole is in the range of 3mm~60mm.
- A kind of 8. veneer intermittent movement heat injection formula veneer dryer according to claim 7, it is characterised in that：Heat injection orifice plate Thickness in the range of 5mm~20mm, the diameter in the heat injection hole on heat injection orifice plate is in the range of 3mm~10mm, between heat injection hole Distance is in the range of 8mm~20mm.
- A kind of 9. veneer intermittent movement heat injection formula veneer dryer according to claim 1, it is characterised in that：Described consolidates Fixed combined type support pressing plate is the Combined type pressing plate formed by pressing plate, heat insulation tie-plate, resistant to elevated temperatures cushion concatenation.
- A kind of 10. veneer intermittent movement heat injection formula veneer dryer according to claim 1, it is characterised in that：Heat injection is situated between Matter is hot-air or superheated steam.
- A kind of 11. veneer intermittent movement heat injection formula veneer dryer according to claim 1, it is characterised in that：Control note Enter the caloic transmission heat injection control system of the temperature of thermal medium in veneer, speed, flow, relative humidity.
- A kind of 12. veneer intermittent movement heat injection formula veneer dryer according to claim 1, it is characterised in that：Described Veneer Control System for Transmission Belt is provided with veneer conveyer belt and veneer travel switch, controls the motion in veneer transmitting procedure and stops Only.
- A kind of 13. veneer intermittent movement heat injection formula veneer dryer according to claim 1, it is characterised in that：Described Caloic transmission heat injection control system is provided with thermal medium Transfer pipe and heat injection velocity of medium, flow, the controller of time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710960730.XA CN107576181A (en) | 2017-10-16 | 2017-10-16 | A kind of veneer intermittent movement heat injection formula veneer dryer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710960730.XA CN107576181A (en) | 2017-10-16 | 2017-10-16 | A kind of veneer intermittent movement heat injection formula veneer dryer |
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| Publication Number | Publication Date |
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| CN107576181A true CN107576181A (en) | 2018-01-12 |
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ID=61037389
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710960730.XA Pending CN107576181A (en) | 2017-10-16 | 2017-10-16 | A kind of veneer intermittent movement heat injection formula veneer dryer |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110986509A (en) * | 2019-12-23 | 2020-04-10 | 石家庄华杰木业有限公司 | Veneer hot-pressing dryer |
| CN115289800A (en) * | 2022-10-09 | 2022-11-04 | 江油星联电子科技有限公司 | Drying device is used in processing of PCB circuit board |
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| CN2328955Y (en) * | 1998-03-06 | 1999-07-14 | 陆仁书 | Exhausted steam intermittent type single board drier |
| CN2433060Y (en) * | 2000-03-16 | 2001-06-06 | 上海福海(木业)企业有限公司 | Energy-saving veneer dryer |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110986509A (en) * | 2019-12-23 | 2020-04-10 | 石家庄华杰木业有限公司 | Veneer hot-pressing dryer |
| CN110986509B (en) * | 2019-12-23 | 2023-12-19 | 石家庄华杰木业有限公司 | Veneer hot-pressing dryer |
| CN115289800A (en) * | 2022-10-09 | 2022-11-04 | 江油星联电子科技有限公司 | Drying device is used in processing of PCB circuit board |
| CN115289800B (en) * | 2022-10-09 | 2022-12-13 | 江油星联电子科技有限公司 | Drying device is used in processing of PCB circuit board |
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Application publication date: 20180112 |