CN207495707U

CN207495707U - A kind of equipment for improving heat_treated wood rate

Info

Publication number: CN207495707U
Application number: CN201721460628.5U
Authority: CN
Inventors: 何正斌; 伊松林; 曲丽洁; 王振宇; 张佳利
Original assignee: Beijing Forestry University
Current assignee: Beijing Forestry University
Priority date: 2017-11-06
Filing date: 2017-11-06
Publication date: 2018-06-15
Anticipated expiration: 2027-11-06

Abstract

The utility model provides a kind of equipment for improving heat_treated wood rate, including treating of wood room, ultrasonic system, pumped vacuum systems, heating system, Wood modifier, dress material system and vapour system, wherein, ultrasonic system carries out ultrasonication to timber；Pumped vacuum systems carries out vacuumize process to timber；Heating system heats timber；Wood modifier includes pretreatment fluid and modification liquid, and processing is modified to being positioned over the indoor timber for the treatment of of wood；Vapour system conveys vapor into process chamber, protects heat-treated wood.

Description

A kind of equipment for improving heat_treated wood rate

Technical field：

The utility model is related to a kind of timber high-temperature heat treatment device, more particularly to a kind of raising timber high-temperature heat treatment speed The processing equipment of rate belongs to timber hot-working field.

Background technology

Timber is a kind of material with the excellent natural performance such as renewable, environmentally friendly and recyclable, however because Its special biological structure causes it to have to pass through certain working process and can just be used.High-temperature thermal treatment timber technology is not Any chemical agent is added, can improve and improve the quality of quick-growing plantation timber, substitutes the high-quality wildwood timber in part.

In order to improve the performances such as the stability of the against weather of timber, size and resistance to decadent nature.Patent 201310604960.4 providing a kind of quick-growing plantation Eucalyptus Wood high-temperature heat treatment process, which passes through quick-growing plantation The pretreatment of eucalyptus；By the timber high temperature boiling after sawing；Stacking；Timber after stacking is carried out to steam damping drying；Preheating； Aqueous vapor shielded heat-treated under medium temperature；High-temperature process and cooling and quenched process under conditions of inert gas shielding downloads 165-240 DEG C Timber is handled.The technique of the utility model substantially reduces drying time in Eucalyptus Wood high-temperature heat treatment process, together When solve the problems, such as that conventional kiln drying (kd) the Eucalyptus Wood easily deformations such as end check, warpage and shrinkage and volume recovery are low.Volume recovery is high, can Reach 60%-70%；Using the water vapour of the utility model and nitrogen combination treatment method, treated, and Eucalyptus Wood mechanics is strong Degree averagely has dropped 28%；And color and degree of carbonization are uniform after being heat-treated；Dimensional stability greatly improves, equilibrium moisture content 45% is reduced than untreated.

Patent 201511002295.7 gives a kind of damp and hot tension wood heat treatment method, and the invention is using at pressurized tank Manage timber, and by pressurized tank be placed in deep fat in, ensure that heat treatment process seal, under the conditions of 185-220 DEG C to timber into Row processing can effectively shorten the time of heat treatment, reduce heat treatment energy consumption；Nutriment degradation in timber is more thorough； Treated timber color and luster evenly, can also avoid cracking of the timber in heat treatment process, effectively improve heat treatment wood The quality of material.

The high temperature water heat processing method of 200610031950.6 timber of patent, the utility model use：1) timber is placed in In high temperature heat treatment furnace；Temperature in high temperature heat treatment furnace is increased to 120-150 DEG C of heat preservation；2) when moisture content is reduced to After less than 5%, the temperature improved in high temperature heat treatment furnace is kept the temperature to 180-240 DEG C；Soaking time presses the wood of thickness per cm Material is kept for 0.5-3 hours；3) temperature of high temperature heat treatment furnace is reduced, after temperature is reduced to below 100 DEG C, with steam or hot water Timber is handled, makes the moisture content of timber to 7-10%；4) continue to reduce the temperature in high temperature heat treatment furnace, when in timber The temperature in portion is come out of the stove after being reduced to 40 DEG C or so；5) 15 days or more time is balanced in atmospheric environment.The utility model can improve Dimensional stability, rotproofness and the weatherability of timber, enable timber to be after treatment widely used in humidity and temperature change In bigger environment.

These methods largely improve the property such as the against weather of timber, the stability of size and resistance to decadent nature Can, and product is widely used in the processing of woodwork, and timber is carried out at high warm under conditions of 120-220 DEG C Reason improves wood dimensional stability, corrosion resistant performance and weather resistance to reach.

But the processing method that these inventions provide is handled under 180-220 DEG C of temperature condition, on the one hand, in high temperature Under super-humid conditions, wood internal cellulose and hemicellulose are significantly decomposed so that and strength of wood substantially reduces, Timber is influenced from mechanical property, greatly limits the scope of application of timber；Secondly, high temperature and humidity medium to the rotproofness of equipment, High temperature resistance is more demanding, and equipment cost is higher；Third handles timber under hot conditions, and energy consumption is higher, and heat treatment process In can discharge a large amount of VOC pollution environment.To overcome the above disadvantages, there is provided herein a kind of timber high temperature thermal treatment and Processing method, the advantages of being heat-treated to timber under lower temperature conditions, timber is made to reach existing high-temperature heat treatment, simultaneously Achieve the effect that energy-saving and emission-reduction.

Utility model content

The purpose of this utility model is for existing Wood heat treatment device, provides a kind of timber heat Processing equipment, the Equipment for Heating Processing of the utility model include treating of wood room, ultrasonic system, pumped vacuum systems, heating system, Wood modifier, dress material system and vapour system.Heat treatment temperature can be reduced using this Equipment for Heating Processing, realize timber compared with The high heat treatment of the dimensional stability of progress heat_treated wood acquisition under the high temperature conditions is made in heat modification processing under low temperature Material can not only reduce energy consumption, improve heat_treated wood rate and efficiency, and the heat treatment wood prepared using this Equipment for Heating Processing Material is in addition to being used for indoor furniture and floor, it may also be used for timber structure.

To realize the utility model aim, the utility model provides a kind of Wood heat treatment device, has sky including inside Treating of wood room, ultrasonic system, pumped vacuum systems, heating system, Wood modifier, dress material system and the vapour system of chamber, Wherein：

The ultrasonic system is made of the supersonic generator connected by conducting wire and at least one ultrasonic transducer, Ultrasonication is carried out to the timber for being positioned over material inner treatment chamber；

The pumped vacuum systems carries out vacuumize process to being positioned over the indoor timber for the treatment of of wood；

The heating system heats the timber for being positioned over material inner treatment chamber；

The Wood modifier includes pretreatment fluid and modification liquid, wherein the pretreatment fluid is water；The modification Treatment fluid selects strong acid weak base salting liquid；

The dress material system is arranged in process chamber cavity, for placing pending timber；

The vapour system provides vapor into the treating of wood room, protects timber.

Wherein, the treating of wood room is made of the material of corrosion resistance, and its underpart sets metal partion (metp) by process chamber sky Chamber is divided into upper and lower two mutually independent parts, and top is used to place pending timber, modifying agent, heating system；Lower part is used for Place the ultrasonic transducer of ultrasonication system.

Particularly, the ultrasonic transducer is mounted on the lower surface of metal partion (metp).

Especially, treating of wood room back-end closure, front end set retractable closing door；In treating of wood room left side wall (or Right side wall) middle and upper part open up modifier inlet, for adding in Wood modifier into process chamber；On the right side for the treatment of of wood room The lower part of wall (or left side wall) sets the modifying agent outlet for discharging modifying agent.

Particularly, the modifying agent outlet is positioned at the lower part of metal partion (metp).

Particularly, treating of wood room is left and right or the external setting of rear wall is for monitoring the liquid level of modifying agent in process chamber The liquid level gauge of height, the bottom of liquid level gauge is arranged on the bottom of process chamber upper cavity, positioned at the top of metal separator, and with Process chamber upper space is connected.

Wherein, the ultrasonication system includes ultrasonic transducer, supersonic generator and the connection ultrasound The conducting wire of wave transducer and supersonic generator.

Particularly, supersonic generator is arranged on the outside of process chamber；Ultrasonic transducer is arranged on treating of wood room In lower cavity.

Especially, the ultrasonic transducer includes multiple series connection and energy converter in parallel, the multiple ultrasonic wave transducer Device is uniformly mounted on the lower surface of metal partion (metp).

Wherein, pumped vacuum systems is arranged on the outside of process chamber, including vacuum pump, pressure controller and pressure gauge, with wood Material process chamber is connected by vacuum export mouth, is realized and is carried out vacuumize process to treating of wood room cavity.

Particularly, the vacuum export mouth is arranged on the top for the treatment of of wood room side wall or the top of process chamber.

Especially, treating of wood room by connecting pipe successively with the pressure controller of the pumped vacuum systems, vacuum pump It is connected.

Wherein, the heating system is arranged on the indoor top of processing, including heater, circulating fan, wind deflector, In：Wind deflector is located at the lower part of heater, circulating fan；Heater is arranged on the both sides of circulating fan, and heater is along processing Room length direction arrangement.

Particularly, the heater is located at the both ends that wind deflector extends along process chamber length direction, i.e., heater is along place It is longitudinally disposed to manage room；The circulating fan is arranged on the center line of process chamber short transverse；The mounting height of wind deflector is higher than The height of modifier inlet, positioned at the top of modifier inlet；The wind deflector is tabular, is prolonged along process chamber length direction It stretches, and the two side certain distance apart from process chamber length direction, using dried medium after heating, is blown through circulating fan Indoor free-flowing is reprocessed afterwards.

Wherein, the Wood modifier includes pretreatment fluid and modification liquid, is positioned in treating of wood room, immersion is treated Handle timber.

Particularly, the pretreatment fluid selection water (being usually distilled water or tap water)；The modification liquid selection is strong Sour weak base salting liquid, hydrolysis is in acidity.The strong acid weak base salt selective chlorination zinc, copper chloride, iron chloride, aluminum sulfate, copper sulphate Mass concentration Deng, the strong acid weak base salting liquid is 1%-50%, preferably 5%.

Wherein, the dress material system includes frame, fixation kit and fixing bracket；Wherein, the frame is by stainless steel tube The shelf of manufactured cuboid or the square bodily form, the fixation kit are fixedly connected with the upper bottom surface of frame；The fixed branch Frame is arranged on the bottom surface of frame, is fixedly connected with frame bottom surface.

Particularly, the upper bottom surface of the fixation kit and frame is rotatablely connected；Pass through hinge connection.

Wherein, frame shelf of cuboid or the square bodily form made of stainless steel tube, bottom surface and 3 sides Face reticulates structure, upper bottom surface and another side in open state, is known as open side in the side of open state；In net The side of shape structure is known as mesh side.

Particularly, the fixation kit includes 1 mesh caps, multiple springs, at least 2 block pressur plates and one or more are solid Determine locking member.

Wherein, the head cover be rectangle or square mesh tablet made of stainless steel tube, shapes and sizes with The shapes and sizes of the upper bottom surface of frame are adapted.

Particularly, the shape of the head cover, size and frame upper bottom surface are adapted.

Especially, any one of one side of the head cover and 3 mesh sides of frame corresponding side in side Top side is rotatablely connected so that head cover can be with free-open-close along the side top of frame upper bottom surface.

Wherein, the spring is arranged on the lower surface of head cover, and one end is fixedly connected with the lower surface of head cover.

Particularly, the spring is arranged along length or width direction a point row for the head cover.

Wherein, the pressing plate is in tabular, and the length of length and head cover is adapted, the upper surface of pressing plate and spring it is another One end is fixedly connected.

Particularly, the pressing plate is arranged along the length direction of head cover, a block pressur plate and corresponding row spring, and is pressed The upper surface of plate is fixedly connected with the other end of spring.

Wherein, the fixed locking member is arranged on the head cover opposite side opposite with the side of rotation connection at the top of frame side wall On the upper side edge in face.

Particularly, the fixed locking member setting is another other than head cover is with the side of rotation connection at the top of frame side wall On the upper side edge of outer 3 sides.

Especially, the fixed locking member is any device that can be fixed together two objects, such as hook Son, rope or wirerope etc..

Wherein, the vapour system includes steam generator, jet chimney and the steam control valve being arranged on pipeline, institute It states vapour system by steam introducing port with treating of wood room to be connected, steam is imported into treating of wood room.

Particularly, the steam introducing port is opened in the lower part of process chamber upper cavity.

Particularly, temperature-water content monitoring system is further included, for monitoring the temperature of medium in process chamber, pending wood The temperature and moisture content of material.

Wherein, the temperature-water content monitoring system contains including media temperature sensor, medium temperature controller, timber Water rate-temperature monitor group (i.e. temperature and moisture sensor, are not shown in figure, mounted on the center of material heap), conducting wire and wood Material moisture content-temperature-detecting device.

Particularly, the media temperature sensor is mounted on the center of process chamber length direction two side；The medium temperature Degree sensor is connected with the medium temperature controller being arranged on outside process chamber by conducting wire, and each temperature sensor includes one Dry bulb thermometer and a wet-bulb thermometer measure the dry of medium, wet-bulb temperature in process chamber.

Especially, the medium temperature controller is connected by conducting wire with heater, for controlling treating of wood room empty The temperature of chamber, when heat treatment temperature of the treating of wood indoor temperature higher than timber setting, heater stops heating；At timber When managing heat treatment temperature of the indoor temperature less than timber setting, heater starting heats timber, provides heat_treated wood Institute's calorific requirement.

Wherein, the moisture content-temperature monitor group is mounted on the center of pending material heap, including a dry bulb temperature Degree meter and moisture content detector.

Particularly, the moisture content-temperature monitor group is examined by the moisture content outside conducting wire and process chamber-temperature Device is surveyed to be connected, moisture content-temperature-detecting device read the timber that moisture content-temperature monitor group measures temperature and Moisture content.

Compared with prior art, the utility model has the following advantages that：

As can be seen that using the Wood heat treatment device and method of the utility model, at a lower temperature in embodiment With regard to can reach existing high-temperature thermal treatment timber attainable heat-treated wood dimensional stability, the main original of the utility model Reason is that chemical agent is strong acid weak base salt, and faintly acid is presented in water, and in neutral solution, wood internal water suction group will be It could be decomposed under higher temperature, and under the conditions of provided by the invention, under the conditions of relatively low, wood internal water suction group can just divide Solution is reduced, and then improves the dimensional stability of timber, realizes catalytic heat treatment.

1st, the Wood heat treatment device of the utility model includes ultrasonication system to timber progress ultrasonication, carries High timber permeability so that during later stage modification, Wood modifier is easier to enter wood internal, in subsequent heat treatment In the process, heat treatment temperature is reduced, realization handles timber at a lower temperature, and heat-treated wood, and Low Temperature Heat Treatment is made Timber reach a high temperature the effect of heat-treated wood.

2nd, the pumped vacuum systems of the Wood heat treatment device of the utility model under conditions of ultrasonication to timber into By vacuumizing, the air of wood internal is taken away for row vacuumize process, when normal pressure state is restored to, Wooden modifying Agent rapidly enters wood internal under the action of atmospheric pressure, improves the amount of dipping effect and maceration extract；

3rd, Equipment for Heating Processing using the present invention handles timber at relatively low temperature, and obtained timber has carbonization The characteristic of wood, dimensional stability can reach the timber of higher temperature processing used in high-temperature heat treatment process, save energy consumption； Moreover, the timber of Equipment for Heating Processing processing using the present invention not only has good stability of the dimension, available for indoor furniture and ground Plate, it may also be used for timber structure.

4th, timber is handled using this Wood heat treatment device, treating of wood temperature is low, the volatile matter discharged in processing procedure It is less, Environmental Safety.

5th, the Wood modifier of this Wood heat treatment device is water and strong acid weak base salting liquid, is inorganic modifier, does not have There is any pollution, handle material Environmental Safety.

6th, the dress material system of the Wood heat treatment device of the utility model compresses timber, is immersed in Wood modifier, In ultrasonication, vacuumize process, heat treatment process so that timber material heap stablize, prevent in timber drying due to The warp in wood that stress generates, the defects of bending, when timber is compacted, even if phenomena such as producing warpage, in dress material component Under fixed function, timber still maintains smooth so that processing material is stablized, and defect is less.

7th, the Wood heat treatment device of the utility model is simple in structure, and processing equipment integration, equipment cost is low, timber heat It is simple to handle treatment process.

Description of the drawings

Fig. 1 is the structure diagram that the utility model improves heat_treated wood rate device；

Fig. 2 be in Fig. 1 along the sectional view of A-A；

Fig. 3 is the frame, holddown spring, locking for the dress material system that the utility model improves heat_treated wood rate device The structure diagram of part, pressing plate；

Fig. 4 is the frame, holddown spring, locking for the dress material system that the utility model improves heat_treated wood rate device The left diagram of structure of part, pressing plate；

Fig. 5 is the frame dimensional structure diagram for the dress material system that the utility model improves heat_treated wood rate device (illustrating frame facet, side upper side edge in figure, reticular structure is not shown).

Reference sign

1st, treating of wood room；11st, cavity；111st, upper cavity；112nd, lower cavity；12nd, closing door；13rd, modifying agent enters Mouthful；14th, modifying agent exports；15th, liquid level gauge；16th, demarcation strip；2nd, ultrasonic system；21st, ultrasonic transducer；22nd, ultrasonic wave is sent out Raw device；23rd, conducting wire；3rd, pumped vacuum systems；31st, vacuum pump；32nd, pressure controller；33rd, pressure gauge；34th, vacuum export mouth；4、 Heating system；41st, heater；42nd, circulating fan；43rd, wind deflector；5th, Wood modifier；51st, pretreatment fluid；52nd, modification Liquid；6th, material system is filled；61st, frame；611st, frame facet A；6111st, side A upper side edges；612nd, frame facet B；6121st, side B Upper side edge；613rd, frame facet C；6131st, side C upper side edges；614th, frame facet D；6141st, side D upper side edges；62nd, it is fixed Component；621st, head cover；622nd, spring；623rd, pressing plate；624th, fixed locking member；63rd, fixing leg；7th, vapour system；71st, steam Generator；72nd, jet chimney；73rd, steam control valve；74th, steam introducing port；81st, media temperature sensor；82nd, medium temperature Controller；83rd, conducting wire；9th, material heap.

Specific embodiment

The utility model is further described with reference to specific embodiment, and the advantages of the utility model and feature will be with Description and it is apparent.But these embodiments are only exemplary, do not form any restrictions to the scope of the utility model. It it will be understood by those skilled in the art that can be to the utility model skill under the spirit and scope without departing from the utility model The details and form of art scheme are modified or are replaced, but these modifications and replacement each fall within the scope of protection of the utility model It is interior.

With reference to the accompanying drawings, detailed description implements the specific embodiment of solid wood board drying means of the present invention.

As shown in Figure 1, 2, what the processing unit of raising heat_treated wood rate of the invention was made of stainless steel has anti- The treating of wood room 1 of corrosiveness, ultrasonic system 2, pumped vacuum systems 3, heating system 4, Wood modifier 5, dress material system 6 With vapour system 7 and temperature-water content monitoring system composition, wherein pumped vacuum systems is to the timber for the treatment of of wood room and its inside Carry out vacuumize process；To treating of wood, indoor timber carries out ultrasonication to ultrasonic system；Heating system is at timber The indoor timber of reason provides the heat needed for heat_treated wood；Vapour system provides timber heat for the indoor timber for the treatment of of wood and steams Vapour is heat-treated.

With reference to Fig. 1,2, treating of wood room 1 is made of stainless steel, and has anticorrosive effect, outside setting thermal insulation material, tool There is the effect of heat preservation；Inner treatment chamber Formation cross-section is the cavity 11 of rectangle, and the back-end closure of process chamber, front end sets retractable Closing door 12.Process chamber cavity is divided into upper and lower two mutually independent parts by the lower part setting metal partion (metp) 16 of process chamber, Upper cavity 111 is for placing pending timber, modifying agent, heating system, and lower cavity 112 is closed, for placing ultrasonic wave The ultrasonic transducer of processing system；Metal partion (metp) usually selects stainless steel plate.In treating of wood room left side wall (or right side wall) Middle and upper part open up modifier inlet 13, for into process chamber add in Wood modifier 5；Right side wall in treating of wood room The lower part of (or left side wall) sets the modifying agent outlet 14 for discharging modifying agent, the i.e. side wall in modifier inlet opposite side Lower part open up modifying agent outlet；Modifying agent outlet is located at the lower part of demarcation strip, after modifying agent passes through demarcation strip by conduit, from It discharges process chamber lower part.Treating of wood outdoor (i.e. left and right or rear wall outside) sets liquid level gauge 15, the bottom of liquid level gauge The bottom of process chamber upper cavity is arranged on, is connected positioned at the top of metal separator, and with process chamber upper space, is used for Monitor the liquid level of modifying agent in process chamber.The mounting height of liquid level gauge bottom and the height of dress material system framework bottom are mutually fitted It should.

Treating of wood room 1 is the cuboid of accumbency in the embodiment of the present invention, and inside has the cavity 11 of rectangular in cross-section, Cavity include upper cavity 111 and lower cavity 112, the present invention in treating of wood room shape in addition to the cuboid for accumbency Except, other any shapes are suitable for the present invention, such as cylinder, spherical shape, cube shaped etc. are suitable for the present invention.This hair The side wall laterally and vertically formed as process chamber using the forward and backward side wall of process chamber in bright embodiment；Left and right sides wall is indulged for process chamber To with the side wall that is vertically formed；It is illustrated for the plane that top and bottom are formed for process chamber vertical and horizontal.Modifying agent Entrance, liquid level gauge are arranged on the left side wall of process chamber, and modifying agent outlet illustrates for being arranged on process chamber right side wall

Ultrasonication system 2 includes ultrasonic transducer 21, supersonic generator 22 and the connection ultrasonic waves The conducting wire 23 of energy device and supersonic generator, wherein, supersonic generator is arranged on the outside of process chamber 1；Ultrasonic transducer The bottom for the treatment of of wood room is arranged on, in lower cavity.Multiple ultrasonic transducers are uniformly mounted on metal partion (metp) bottom Outside, the i.e. lower surface of the demarcation strip inside process chamber 1 are uniformly arranged multiple ultrasonic transducers parallel with one another, ultrasonic wave Energy converter is evenly distributed on the bottom of demarcation strip and is fitted tightly over the lower surface of demarcation strip bottom outside；Ultrasonic transducer leads to It crosses conducting wire and is connected with the supersonic generator being placed on outside treating of wood room 1, after opening supersonic generator, due to super Acoustic wave transducer and demarcation strip lower surface are in close contact, from ultrasonic wave is entered after being generated from supersonic generator by demarcation strip The liquid of chamber interior is managed, ultrasonic wave is applied to the timber being immersed in Wood modifier, carries out ultrasonication, in entire ultrasound Have to ensure that the liquid level of modifying agent necessarily is greater than the position of ultrasonic transducer in wave processing procedure；Ultrasonic wave is by wood internal Extract extraction, get through wood internal channel, and then promote Wood modifier injection wood internal.

Pumped vacuum systems 3 is arranged on the outside of process chamber, including vacuum pump 31, pressure controller 32 and pressure gauge 33, takes out Vacuum system is connected with treating of wood room by vacuum export mouth 34, and vacuum export mouth is arranged on the upper for the treatment of of wood room side wall Portion (such as Fig. 1), can also set the top for being opened in process chamber, be connected successively with pressure controller, vacuum pump by connecting pipe, It realizes and vacuumize process is carried out to treating of wood room cavity；Pressure gauge is mounted on the top of process chamber, for measuring treating of wood Pressure in the cavity of room observes and measures the vacuum degree in the cavity for the treatment of of wood room；Pressure controller passes through connecting pipe It is connect with vacuum pump；Pressure controller is used to control the pressure for the treatment of of wood chamber interior cavity, and pressure controller is opened with vacuum pump It opens, when setting pressure less than chamber pressure, vacuum pump automatically turns on, and then reduces and handle indoor absolute pressure, works as place When reason chamber pressure reaches setting pressure, vacuum pump is stopped, and (in order to ensure to work normally, the pressure value of setting is a model It encloses, the upper limit and offline difference 0.005MPa).

Heating system 4, which is mounted on, handles indoor top, heat is provided for pending timber, for the drying of wood and high temperature Heat treatment, including heater 41, circulating fan 42, wind deflector 43.

Heater, circulating fan and wind deflector are arranged on the top of process chamber upper cavity, and wind deflector is located at heater, follows The lower part of ring wind turbine；Heater is arranged on the both sides of circulating fan, positioned at the both ends that wind deflector extends along process chamber length direction, I.e. heater is longitudinally disposed along process chamber.Circulating fan is arranged on the center line of process chamber short transverse；The peace of wind deflector Dress height is higher than the height of modifier inlet, positioned at the top of modifier inlet.Wind deflector is tabular, along process chamber length side To extension, the centre position of process chamber length direction two side is arranged on, apart from left and right sidewall certain distance, utilizes dried medium After heating, indoor free-flowing is reprocessed after circulating fan is blown.

The present invention handle indoor circulating fan can be it is multiple, it is longitudinally evenly distributed along process chamber, positioned at process chamber Longitudinal centre line extends along process chamber short transverse in formed plane.Circulating fan is opened, by the even heat of heater It is transported in the cavity of Equipment for Heating Processing, even heat is passed into timber to be heated, while will be during heat_treated wood The moisture of generation is taken away, discharge.

Wood modifier 5 includes 52 (not shown) of pretreatment fluid 51 and modification liquid, is placed sequentially at timber Chamber interior is managed, the height of modifying agent is higher than the height of material heap 9 in process chamber, usually higher than the height of material heap in process chamber at least 5cm, to ensure pending timber always in modifying agent.Wood modifier is empty from modifier inlet injection process chamber top Chamber exports discharge after modification by being arranged on the modifying agent of process chamber lower cavity.

Pretreatment fluid selection water (being usually distilled water or tap water)；Modification liquid selects strong acid weak base salting liquid, water Solution is in acidity.The strong acid weak base salt selective chlorination zinc, copper chloride, iron chloride, aluminum sulfate, copper sulphate etc., the strong acid weak base The mass concentration of salting liquid be 1%-50%, preferably 5%.Modifying agent from modifier inlet inject inner treatment chamber, after processing from Modifying agent outlet discharge.

Such as Fig. 3,4,5, dress material system 6 is arranged on the inside for the treatment of of wood room, for placing pending timber, including being in net Frame 61, fixation kit 62 and the fixing bracket 63 of shape structure；Wherein：

Frame shelf of cuboid or the square bodily form made of stainless steel tube, bottom surface and 3 sides reticulate Structure, upper bottom surface and another side are in open state, are known as open side in the side of open state, in reticular structure Side is known as mesh side.Open side, for being packed into timber into frame.

Fixation kit is arranged on the upper bottom surface of frame, and shape, size and frame upper bottom surface are adapted, fixation kit with Upper bottom surface is fixedly connected (such as rotation connection, hinge connection)；

Fixation kit can also be upper bottom surface of the lid conjunction in frame, and locking member is fixed on four sides and four sides of frame are consolidated It is scheduled on together.

Fixing bracket is arranged on the bottom of frame, be fixedly connected with the bottom surface of frame (welding of bottom surface and fixing bracket, The modes such as riveting link into an integrated entity), for bearing the weight of timber and frame, and frame supported, is fixed on metal separator Upper surface and separated by a distance with demarcation strip, frame is avoided directly to be come into contact in a large area with demarcation strip, conducive to Wooden modifying Agent flows freely, and passes freely through base of frame；Fixing leg can also be mounted in the idler wheel of base of frame, and frame passes through idler wheel It is supported on the top of metal partion (metp).

Open side is in the side formed in the embodiment of the present invention using the length direction of frame and short transverse, not shape It reticulates and illustrates for structure.Fixation kit then can be with the another in addition to open side top side of frame upper bottom surface Arbitrary rotation connection or hinge connection on one side in outer 3 sides (side of a length direction, two width direction sides).

Such as Fig. 5, four sides of frame of the present invention are respectively using the side of length direction and short transverse as frame facet A 611st, frame facet B 612, wherein using side A as open side；Using the side of width direction and short transverse as frame facet C 613rd, frame facet D 614.Side B, C, D are in reticular structure, are mesh side；Side A is parallel with B, and side C is equal with D Row.Side is respectively side A upper side edges 6111 at the top of side A, B, C, D；Side B upper side edges 6121；Side C upper side edges 6131； Side D upper side edges 6141.

The present invention is illustrated so that side A is exploitation side as an example, other sides and so on.

The top of either side connects or passes through in a manner of being rotatablely connected in 3 mesh sides of fixation kit and frame Rotating member axis pin is rotatablely connected；Be rotatablely connected by the rotation connection component of nut, screw rod or using in this field it is existing The rotation connection mode known connects.

Fixation kit connects with any one side rotation connection in the top side of frame facet B, C, D or hinge It connects.

It is said so that fixation kit is rotatablely connected with frame facet B upper side edges 6121 as an example in the specific embodiment of the invention Bright, fixation kit can also be rotatablely connected with frame facet C upper side edges, side D upper side edges.

Fixation kit includes 1 mesh caps 621, at least multiple springs 622,2 block pressur plates 623 and multiple fixed locking members 624, wherein：

Head cover is the upper bottom of rectangle or square mesh tablet made of stainless steel tube, shapes and sizes and frame The shapes and sizes in face are adapted, and head cover can cover the upper bottom surface closed in frame；One side of head cover and the 3 of frame reticular structures The rotation connection of the corresponding side top side in any one of side side so that head cover along frame upper bottom surface side Top can be with free-open-close (being equivalent to a lid), and the present invention is with the top of any one side in head cover and side B, C, D Side wall is rotatablely connected, and head cover is rotatablely connected along the top of any one side in 3 reticular structure sides of frame, that is, is removed The top rotation connection of any one side, free-open-close are packed into timber in other 3 sides except open side top Afterwards, head cover is fastened, timber is fixed in frame.

Spring is arranged on the lower surface of head cover, and is divided into the arrangement of two row, one end and head cover along the length direction of head cover Lower surface be fixedly connected and (such as weld, rivet, the existing known mode that is fixedly connected is applicable in this field)；

Pressing plate is in tabular, and the length of length and head cover is adapted, and is arranged along the length direction of head cover, a block pressur plate Be fixedly connected with corresponding row spring, the upper surface of pressing plate be fixedly connected with the other end of spring (such as weld, riveting etc., The existing known mode that is fixedly connected is applicable in this field), lower surface is pressed on the top for being positioned over the timber in frame, Timber is fixed in frame, prevents timber from the changes such as warpage, cracking are moved or occurred in ultrasonication, heat treatment process Shape, and then influence the remaining mass of timber.

Spring in the present invention, pressing plate are by taking the length direction along head cover is divided into the arrangement of two row as an example, and spring is in addition to along head cover Length direction is divided into except the arrangement of two row, also can be divided into >=3 row arrangements；Spring can also be divided into along the width direction of head cover 2 row or Above arrangement.Pressing plate can also arrange other than the length direction arrangement along head cover along the width direction of head cover, pressing plate edge top Lid width direction arranges, then the length of pressing plate and the width of head cover are adapted；The quantity of pressing plate and the number of permutations of spring are adapted. Such as 2 row of spring point, then pressing plate is 2 pieces, is 3 pieces in pressing plate such as 3 row of spring point, and so on.

Fixed locking member is arranged in head cover a side opposite with frame side wall top rotation connection one side (i.e. if top The top side of lid and frame side wall B is rotatablely connected, then fixed locking member is arranged on head cover and connects with side wall A or side wall A, C, D Tactile side；If the top side of head cover and frame side wall C is rotatablely connected, fixed locking member is arranged on head cover and side wall D Or the side that side wall A, B, D are in contact；Other and so on) or be arranged on except head cover and the rotation connection of frame side wall top On the other three side except one side；The fixed locking member is hook, rope, wirerope etc., after lid closes fixation kit, is used Fixing piece hook catches on 1 (or 3) side of frame or with rope, wirerope by 1 (or 3) side of head cover and frame It is fixed, realize the purpose for compressing timber.Any device that can be fixed together two objects is suitable in this field For the present invention.

The upper side edge of fixing piece and frame facet B (or side C, D) is rotatablely connected in the present invention.In specific embodiment with side The upper side edge 6121 of face B is rotatablely connected, and when head cover lid closes, head cover is adapted with frame upper bottom surface.By timber from open side wall After being packed into frame, fixation kit lid is closed, and fixed locking member hook is fixed on to the side wall A (or side wall A, C, D) of frame On, be fixed on the upper side edge 6111 of side A, other can be fixed on the upper side edge of each side or it is latticed it is lined on, Using the active force of holddown spring 63, the timber being placed in frame compresses.

If the upper side edge 6131 of fixing piece and side C is rotatablely connected, when head cover lid closes, fixed locking member hook is fixed On frame facet D (or side A, B, D)；If fixing piece with or the upper side edge 6141 of side D be rotatablely connected, head cover lid During conjunction, fixed locking member hook is fixed on the side wall C (or side A, B, C) of frame.

The side of head cover and the top of frame facet are connected using known rotation connection mode existing in this field, example It can be such as rotatablely connected by rotating member axis pin；Or loose-leaf connector；Or company is rotated by the rotation connection component of nut, screw rod It connects.Mode is rotatablely connected using axis pin in embodiment of the present invention.

Since frame has reticular structure so that Wood modifier, heat medium can pass freely through dress material system, dress material system The shape of system is identical with inner treatment chamber cavity, and size is less than process chamber cavity 11；The gap filled in material system is conducive to processing Liquid, dried medium circulate and recycle in entire process chamber.

The vapour system 7 of timber offer vapor in high-temperature heat treatment process is arranged on the outside of process chamber, including steaming Vapour generator 71, steam connection tube road 72 and the steam control valve 73 for being arranged on steam connection tube road, vapour system and timber Process chamber is connected by steam introducing port 74, and wherein steam introducing port is opened in the lower part of process chamber upper cavity, and is located at The top (i.e. the height for opening up height and being higher than the demarcation strip of steam introducing port) of demarcation strip, is sent out steam by jet chimney Raw device is connected with inner treatment chamber, and the hot steam that steam generator generates is delivered to inner treatment chamber outside process chamber, from Inner treatment chamber is sent into the lower part of process chamber upper cavity, and vapor excludes the air in dry kiln, allows timber dried Cheng Zhong, environment keeps certain humidity, and then reduces the seasoning defect drying defects such as timber crack, meanwhile, in heat treatment process, vapor will Air in dry kiln excludes, and then prevent in heat treatment process, and temperature is excessively high and burns, and so as to cause danger, influences Product quality.

Temperature-moisture content monitoring system, including media temperature sensor 81, medium temperature controller 82, moisture content- Temperature monitor group (i.e. temperature and moisture sensor, are not shown in figure, mounted on the center of material heap), conducting wire 83 and timber contain Water rate-temperature-detecting device (not shown), wherein,

Media temperature sensor is mounted on the center of the side wall at left and right sides of process chamber, for measuring treating of wood room top The temperature of processing medium in cavity；Temperature sensor is connected with the temperature controller being arranged on outside process chamber by conducting wire, often A temperature sensor includes dry bulb thermometer and each one of wet-bulb thermometer, measures the dry of medium, wet-bulb temperature in process chamber.

Medium temperature controller is connected (attached to be not shown in figure) by conducting wire with heater, for controlling treating of wood room The temperature of cavity, when heat treatment temperature of the treating of wood indoor temperature higher than timber setting, heater stops heating；Work as timber When handling heat treatment temperature of the indoor temperature less than timber setting, heater starting heats timber, provides at timber heat Manage institute's calorific requirement.

Moisture content-temperature monitor group is mounted on the center of pending material heap, including a dry bulb thermometer and contains Water rate detector installs moisture content-temperature monitor group during material heap stacking, measures the temperature at timber center and aqueous Rate.

Moisture content-temperature monitor group is connected by conducting wire with moisture content-temperature-detecting device outside process chamber It connects, moisture content-temperature-detecting device reads the temperature and moisture content for the timber that moisture content-temperature monitor group measures.

Embodiment

1st, dress material processing

1A, material heap are piled up

The plank of certain size will be sawed into according to standard GB/T 1928-91 according to disclosed in drying of wood field Any timber stacking form stacking.It is spaced certain thickness parting bead between adjacent two layers plank, phase in same parting bead layer It is spaced apart between adjacent two parting beads.The effect of parting bead：1) timber 2 can be entered by medium being handled in preprocessing process) after In phase heat treatment process, heat can pass to timber.

1B, fixed material heap

Material heap is positioned over by open side in the frame 61 of dress material system, fixation kit 62 is depressed, makes mesh caps Four sides contacted with the upper side edge of 4 sides of frame, and fixed locking member 624 is fixed on frame facet, pass through bullet Timber is fixed in dress material system by spring and pressing plate so that material heap is fixed together with dress material system；Then dress material system is put In the top of process chamber demarcation strip, closed closing door 12.

2nd, Wooden modifying is handled

2A, pretreatment

2A-1, modifying agent outlet is closed, opens modifier inlet, by pretreatment fluid 51 (water, usually distilled water or originally Water) process chamber upper cavity is injected by modifier inlet, and pass through 15 sensed water level of liquid level gauge (due to liquid level gauge bottom with Inner treatment chamber connects, and utilizes law of connected vessels), when water level is higher than material stack height at least 5cm in process chamber, it is pre- to stop injection Treatment fluid ensures pending material always in solution；

2A-2, supersonic generator is opened, ultrasonic transducer generates ultrasonic wave, and ultrasonic wave is carried out to timber in process chamber On the one hand pretreatment removes wood internal extract (mainly including cold water extract and hot-water extraction object), on the other hand utilizes Ultrasonic cavitation effect destroys wood internal pit membrane, is later stage modifying agent so as to get through the wood internal passage of water Entrance lay the first stone；Wherein：Ultrasonic power is 0.1-20W/cm², preferably 5W/cm²；Frequency is 25-56kHz, preferably 40kHz；The ultrasonic pretreatment time can be according to the thickness of timber, usually 5-60min/cm, preferably 20min/cm；

Modifying agent outlet is opened after 2A-3, ultrasonic pretreatment, discharges pretreatment fluid；

2B, modification

2B-1, close modifying agent outlet, open modifier inlet, by modification liquid 52 by modifier inlet injection at It manages in room upper cavity 111, and passes through liquid level gauge 15 and detect modification liquid liquid level, when liquid level is high higher than material heap in process chamber When spending 5cm, modifier inlet is closed, that is, stops injecting modification liquid into process chamber, ensures pending material always in molten In liquid；Wherein modification liquid is mainly strong acid weak base salt, hydrolysis in it is acid (mainly including zinc chloride, copper chloride, iron chloride, Aluminum sulfate, copper sulphate etc.), mass concentration 1%-50%, preferably 5%.

The effect of modifying agent：Strong acid weak base salt, hydrolysis can promote heat_treated wood process in acidity, make timber opposite Heat treatment is realized under relatively low temperature condition, achievees the effect that former high temperature can be only achieved.Timber in acid condition, inside Water suction group easily decompose, and in neutral conditions, timber could will decompose at relatively high temperatures.

2B-2, vacuum pump is opened, vacuumize process is carried out to process chamber cavity, passes through pressure controller treating of wood Absolute pressure in chamber cavity reaches and keeps<0.1MPa (absolute pressure is usually 0-0.1MPa, preferably 0-0.01MPa, It is preferred that 0.005MPa)；Keeping pressure<(absolute pressure is usually 0-0.1MPa to 0.1MPa, preferably 0-0.01MPa, preferably Under conditions of 0.005MPa), while supersonic generator is opened, carrying out the ultrasonic wave under vacuum state to timber in process chamber changes Property processing, wherein, ultrasonic power 0.1-20W/cm²(preferably 5W/cm²)；Frequency is 25-56kHz (preferably 40kHz)；Vacuum Ultrasonically-modified processing time under state is calculated as 0.5-3h/cm (preferably 1h/cm), i.e., thickness per cm by rear plank per cm Timber is spent to keep being ultrasonically treated 0.5-3h (preferably 1h).

The purpose vacuumized is：The air of wood internal is taken away, further gets through wood internal channel, the later stage is promoted to change The injection of property agent；Indoor pressure is handled by pressure gauge observable, chamber pressure can control by pressure controller.It opens The purpose for opening ultrasonication is the on the one hand further modification to timber, improves its permeability, on the other hand utilizes ultrasound Wood modifier is injected wood internal by wave effect.

2B-3, under vacuumized conditions, ultrasonically-modified after treatment, open modifier inlet, processing intraventricular pressure Power is again switched off modifier inlet after restoring normal pressure；

When environment is vacuum state (vacuum be finger pressure be less than an atmospheric pressure), wood internal and environmental pressure compared with It is low, when normal pressure is restored to, modifying agent is re-injected into wood internal by ambient pressure.

2B-4, repeat step 2B-2,2B-3 processing 1-5 time (preferably 2 times) after, open modifying agent export, by process chamber Interior Wooden modifying treatment fluid emptying.

3rd, heat_treated wood

3A, after Wooden modifying treatment fluid is discharged, heater and circulating fan, to timber carry out first stage heat at Reason (is dried), and passes through media temperature sensor and medium temperature controller and processing indoor temperature is increased and remained 60 DEG C -90 DEG C (preferably 80 DEG C)；The wind speed of circulating fan is 1-3m/s (preferably 2m/s)；

3B, it is examined in keep medium temperature under conditions of 60 DEG C -80 DEG C (preferably 70 DEG C), to pass through moisture content-temperature The moisture content that instrument group measures pending timber is surveyed, the first stage is heat-treated to moisture content≤30% (preferably 25-30%) When, steam generator and steam control valve are opened, the vapor of heat is passed through in the indoor cavity of processing, while continues heating and rises Temperature improve process chamber in heat-treatment medium dry-bulb temperature and be maintained at more than 90 DEG C (usually 100-130 DEG C, preferably 100- 120 DEG C, further preferably 110 DEG C), the second stage heat treatment under aqueous vapor shielded is carried out, wherein：Carrying out second stage In heat treatment process, the wet-bulb temperature for controlling heat-treatment medium is 90-100 DEG C, preferably 90-95 DEG C；Wet-bulb depression is 0-30 DEG C (preferably 10-25 DEG C, further preferably 10 DEG C)；

Wherein, wet-and-dry-bulb thermometer can be adjusted by the unlatching of steam generator 51 and valve 53, when wet and dry bulb temperature When degree difference is more than 0-30 DEG C (preferably 10-25 DEG C, further preferably 10 DEG C), opens steam generator and carry out humidification process.

In 3C, the second stage heat treatment process under aqueous vapor shielded, surveyed by moisture content-temperature monitor group The moisture content at timber center and timber central temperature are determined, until second stage is heat-treated to moisture content≤10% (preferably 6-10%, further preferably 6-8%) after, heat temperature raising is further continued for, the dry-bulb temperature raising of heat-treatment medium in process chamber And be maintained under conditions of 120-140 DEG C (preferably 120-130 DEG C, further preferably 120 DEG C), it carries out at phase III heat It manages (i.e. isothermal holding), wherein, medium wet-bulb temperature is controlled as 90-110 DEG C (preferably 95 DEG C), and timber central temperature >= 100 DEG C (preferably 105-130 DEG C, further preferably 100-110 DEG C are still more preferably 110 DEG C), isothermal holding time is 1-3h/cm (preferably 1h/cm), i.e. isothermal holding time are according to every centimeter of thickness isothermal holding 1-3h of timber (preferably 1h).

4th, conditioning

After phase III is heat-treated, closes heater and stop heating, simultaneously close off steam generator and automatic steam control Valve stops being passed through vapor into process chamber, when Wood temperature is reduced to≤60 DEG C (preferably 50-60 DEG C), to process chamber It is inside passed through vapor again, it is 1-3 DEG C to keep medium wet-bulb depression in process chamber, and wood surface absorbs moisture, is adjusted Wet process adjusts moisture content to 6-8% to get heat-treated wood.

Handled timber uses China fir, poplar in the utility model embodiment, wherein, China fir picks up from Guangxi, average air Dry density is 0.60g/cm³, moisture content is 85-90% or so；Poplar picks up from Beijing, and average air-dry density is 0.43g/cm³, contain Water rate is 85-90%；It is respectively 4500mm (length) × 400mm (width) × 30mm (thickness that China fir and poplar are made size Direction) plank, according to standard GB/T 1928-91 sawings.

Embodiment 1

1st, dress material processing

1A, material heap are piled up

The fir wood plank of 4500mm × 400mm × 30mm (length × width x thickness) will be sawed into according to institute in drying of wood field Disclosed any one timber stacking form stacking.It is 30mm that a layer thickness is spaced between adjacent both sides Chinese fir board, and width is The parting bead of 25mm, the spacing in same layer parting bead layer between adjacent two parting beads is 500mm, and parting bead is apart from panel length side To two end faces distance be 50mm；

Parting bead selects thickness as 30mm in inventive embodiments, and width is illustrates for the parting bead of 25mm, other sizes It is 30 ± 5mm in thickness, width is that the parting bead of 25 ± 5mm is also applied for the present invention.

1B, fixed material heap

China fir material heap is positioned over to the inside of the frame of dress material system, depresses fixation kit 62, makes four sides of mesh caps It is contacted with the upper side edge of 4 sides of frame, and fixed locking member 624 is fixed on frame facet, pass through spring and pressure Timber is fixed in dress material system by plate so that material heap is fixed together with dress material system；Then dress material system is placed in processing The top of room demarcation strip, closed closing door 12.

2nd, Wooden modifying is handled

2A, pretreatment

2A-1, modifying agent outlet is closed, opens modifier inlet, by the cavity of 51 distilled water of pretreatment fluid injection process chamber Upper cavity 111, and pass through 15 sensed water level of liquid level gauge, when water level is higher than material stack height 5cm in process chamber, stop note Enter, ensure that pending material is immersed in solution always；

2A-2, ultrasonic system (opening supersonic generator, ultrasonic transducer) is opened, generates ultrasonic wave to processing Indoor timber carries out ultrasonic pretreatment, wherein：Ultrasonic power is 5W/cm²；Frequency is 40kHz；The ultrasonic pretreatment time 60min, based on lumber thickness per cm, the timber ultrasonic pretreatment time is 20min/cm (thickness)；

2B, ultrasonically-modified processing

2B-1, close modifying agent outlet, open modifier inlet, modification liquid 52 is injected process chamber cavity it is upper In portion's cavity, and modification liquid liquid level is detected by liquid level gauge, when liquid level is higher than material stack height 5cm in process chamber, closed Modifier inlet stops injection modification liquid, ensures that pending material is immersed in solution always；Wherein modification liquid is chlorine Change zinc solution, mass percent concentration 5%.

Modification liquid is illustrated by taking liquor zinci chloridi as an example in the embodiment of the present invention.Modification liquid is dense in addition to quality It spends for except 5% liquor zinci chloridi, other concentration 1-50% is also applied for the present invention, other than liquor zinci chloridi, other are strong Sour weak base salting liquid is also applied for the present invention, such as copper chloride, iron chloride, aluminum sulfate, copper-bath etc., and modification liquid is molten The mass concentration of liquid be 1%-50%, preferably 5%.

2B-2, vacuum pump is opened, vacuumize process is carried out to process chamber cavity, passes through pressure controller treating of wood The absolute pressure of chamber cavity reaches and remains 0.005MPa；Ultrasonic wave is opened under conditions of pressure is kept as 0.005MPa System carries out the ultrasonically-modified processing under vacuum state to timber in process chamber, wherein, ultrasonic power 5W/cm²；Frequently Rate is 40kHz；Ultrasonically-modified processing time under vacuum state is 3h, and based on lumber thickness per cm, timber ultrasonic wave changes Property processing time be 1h/cm (thickness)；

After 2B-3, ultrasonically-modified processing 3h under vacuum conditions, modifier inlet is opened, chamber pressure is restored Modifier inlet is again switched off after normal pressure；

2B-4, after repeating the processing 2 times of step 2B-2,2B-3, modifying agent outlet is opened, indoor Wooden modifying will be handled Treatment fluid empties, wherein keeping pressure as under conditions of 0.005MPa, during ultrasonically-modified processing under each vacuum state Between for 3h, ultrasonic treatment time 3h, based on lumber thickness per cm, timber ultrasonically-modified processing time is 1h/cm (thickness)；The total time of ultrasonically-modified processing under wood vacuum state is 9h, and the total time of ultrasonication is 9h.

3rd, heat_treated wood

3A, after Wooden modifying treatment fluid is discharged, heater and circulating fan, to timber carry out first stage heat at Reason (is dried), and passes through media temperature sensor and medium temperature controller and processing indoor temperature is increased and remained 70℃；The wind speed of circulating fan is 2m/s；

3B, in keep medium temperature under conditions of 70 DEG C, to be measured by moisture content-temperature monitor group pending The moisture content of timber, the first stage is heat-treated to moisture content when being 30%, opens steam generator and steam control valve, will The vapor of heat is passed through in the indoor cavity of processing, while continues heat temperature raising, the dry bulb temperature of heat-treatment medium in process chamber Under conditions of degree increases and remains 110 DEG C, the second stage heat treatment under aqueous vapor shielded is carried out, wherein：Carrying out second During phase heat treatment, the dry-bulb temperature for controlling heat-treatment medium is 110 DEG C, and wet-bulb temperature is 90 DEG C, and keeps being heat-treated The wet-bulb depression of medium is 20 DEG C；

In 3C, the second stage heat treatment process under aqueous vapor shielded, surveyed by moisture content-temperature monitor group The moisture content at timber center and timber central temperature are determined, until second stage is heat-treated to moisture content as 10%, Ran Houji Continuous heat temperature raising improves the temperature of heat-treatment medium in process chamber, carries out phase III heat treatment (i.e. isothermal holding), wherein, it protects The dry-bulb temperature for holding medium is 120 DEG C, and under conditions of wet-bulb temperature is 95 DEG C, phase III heat treatment time is 3h, i.e. third Phase heat treatment (isothermal holding) time, phase III heat treatment time was 1h/cm (thickness) according to lumber thickness meter per cm, and Timber central temperature is 110 DEG C.

4th, conditioning

After phase III is heat-treated, closes heater and stop heating, simultaneously close off steam generator and automatic steam control Valve stops being passed through vapor into process chamber, when Wood temperature is reduced to 60 DEG C, is passed through vapor again into process chamber, The wet-bulb depression for keeping medium in thermal chamber is 2 DEG C, and wood surface absorbs moisture, carries out conditioning, timber is contained Water rate is adjusted to 7% to get heat-treated wood, subsequently heat-treated timber kiln discharge.

Embodiment 2

In addition to step 2A-2) in ultrasonic power be 0.1W/cm²；Frequency is 56kHz；The ultrasonic pretreatment time 180min, based on lumber thickness, the timber ultrasonic pretreatment time is 60min/cm (thickness)；Step 2B-1) in modification liquid The zinc chloride for being 15% for mass concentration；Step 2B-2) in process chamber absolute pressure remain 0.01MPa；Ultrasonic power For 0.1W/cm²；Frequency is 56kHz；1.5h between ultrasonically-modified processing under vacuum state, based on lumber thickness, wood vacuum Ultrasonically-modified processing time under state is 0.5h/cm (thickness)；Step 2B-4) in repeat step 2B-2), 2B-3) processing 3 It is secondary；Ultrasonically-modified processing time under each vacuum state is 1.5h, ultrasonic treatment time 1.5h, by timber per cm Thickness gauge, timber ultrasonically-modified processing time are 0.5h/cm (thickness)；Ultrasonically-modified processing under wood vacuum state it is total Time is 2h, and the total time of ultrasonication is 2h；

In addition to step 3A) in first stage heat treatment process processing indoor temperature increase and remain 80 DEG C；Circulated air The wind speed of machine is 1m/s；Step 3B) in, the first stage is heat-treated to when moisture content is 25% and opens steam generator and steaming Vapor is passed through in the indoor cavity of processing by vapour control valve, in second stage heat treatment process, controls the dry of heat-treatment medium Ball temperature be 120 DEG C, wet-bulb temperature be 95 DEG C, and keep heat-treatment medium wet-bulb depression be 25 DEG C；Step 3C) in Two-stage be heat-treated to moisture content for 6% when, heat temperature raising improve medium temperature, carry out phase III heat treatment, wherein, The dry-bulb temperature for keeping heat-treatment medium is 130 DEG C, and wet-bulb temperature is 110 DEG C, and phase III heat treatment time is 3h, i.e. third The phase heat treatment time, the thick timber isothermal holding time per cm was 1h/cm (thickness) according to lumber thickness meter；Phase III is handled Timber central temperature is 105 DEG C in the process,

In addition to when Wood temperature is reduced to 60 DEG C in step 4), being passed through vapor again into process chamber, heat treatment is kept The wet-bulb depression of indoor medium is 1 DEG C, treats that moisture content is adjusted to except 6%, remaining is same as Example 1.

Embodiment 3

In addition to step 2A-2) in ultrasonic power be 20W/cm²；Frequency is 25kHz；Ultrasonic pretreatment time 15min, Based on lumber thickness, the timber ultrasonic pretreatment time is 5min/cm (thickness)；Step 2B-1) in modification liquid for quality it is dense Spend the zinc chloride for 1%；Step 2B-2) in process chamber absolute pressure remain 0.005MPa；Ultrasonic power is 20W/ cm²；Frequency is 25kHz；Ultrasonically-modified processing time 9h under vacuum state, based on lumber thickness, under wood vacuum state Ultrasonically-modified processing time be 3h/cm (thickness)；Step 2B-4) in repeat step 2B-2), 2B-3) processing 2 times；It is true every time Ultrasonically-modified processing time under dummy status is 9h, and ultrasonic treatment time 9h, based on lumber thickness per cm, timber surpasses The sound wave modification time is 3h/cm (thickness)；The total time of ultrasonically-modified processing under wood vacuum state is 27h, ultrasonic The total time of wave processing is 27h；

In addition to step 3A) in first stage heat treatment process processing indoor temperature increase and remain 60 DEG C；Circulated air The wind speed of machine is 3m/s；Step 3B) in, the first stage is heat-treated to when moisture content is 30% and opens steam generator and steaming Vapor is passed through in the indoor cavity of processing by vapour control valve, in second stage heat treatment process, controls the dry of heat-treatment medium Ball temperature be 100 DEG C, wet-bulb temperature be 90 DEG C, and keep heat-treatment medium wet-bulb depression be 10 DEG C；Step 3C) in Two-stage be heat-treated to moisture content for 8% when, heat temperature raising improve medium temperature, carry out phase III heat treatment, wherein, The dry-bulb temperature for keeping heat-treatment medium is 120 DEG C, and wet-bulb temperature is 95 DEG C, and phase III heat treatment time is 9h, i.e. third The phase heat treatment time, the thick timber isothermal holding time per cm was 3h/cm (thickness) according to lumber thickness meter；At phase III heat Timber central temperature is 100 DEG C during reason.

In addition to when Wood temperature is reduced to 50 DEG C, being passed through vapor in step 4) again into process chamber, keep at heat The wet-bulb depression of the indoor medium of reason is 3 DEG C, treats that moisture content is adjusted to except 8%, remaining is same as Example 1.

Reference examples 1

It is to carry out the fir wood plank of any processing as reference examples 1 using embodiment 1.

Reference examples 2

1st, dress material processing

By timber same as Example 1 according to the same manner as in Example 1 stacking in dry kiln.

2nd, heater and circulating fan are opened, conventional drying processing is carried out, and timber is contained to timber according to drying process The drying of water rate is to less than 10%.

Existing common heat treatment is higher due to treatment temperature, it is necessary to assure the moisture content of timber is less than before heat treatment 10%, no person can generate the major defects such as cracking

3rd, steam generator and steam control valve are opened, steam, while heater and cycle are passed through into dry kiln Wind turbine is heat-treated timber, when Kimura's temperature reaches 180 DEG C, and according to timber thickness under conditions of to keep temperature be 180 DEG C Spend the time of heat treatment 1h per cm, processing timber 3h.

4th, after treatment, close heater, when Wood temperature is reduced to 60 DEG C, to wood internal be passed through water vapour into Row conditioning, allow timber absorb moisture, moisture content adjust to during 6-8% to get normative heat treatment timber.

1 wood dimensional stability of test example

According to standard GB/T/T 1934.2-2009《Method for determination of the swelling of wood》Measure embodiment 1, reference examples 1,2 Plank dimensional stability, measure timber from it is absolutely dry to moisture absorption stablize when bulking factor, test result is as shown in table 1, wherein, The calculation formula of bulking factor is as follows：

α_max=(L_max–L₀)/L₀×100

In formula：α_max--- during sample moisture absorption to dimensionally stable, radial direction or tangential line bulking factor, %；

L_max--- during sample moisture absorption to dimensionally stable, radial direction or tangential size, mm；

L₀--- when sample is absolutely dry, radial direction or tangential size, mm.

The testing result of 1 bulking factor of table

1 test result of table shows：

1st, the dimensional stability of the processed timber of the method for the present invention is significantly improved, and radial direction bulking factor is only 0.95%, tangential bulking factor is only 1.98%, relative to untreated material, is radially substantially reduced with tangential；With using conventional heat Carbonized wood prepared by processing method is compared, and radial direction bulking factor is lower.

2nd, the dimensional stability of timber prepared by the method for the present invention and the dimensional stability for directly handling timber using 180 DEG C It is similar, and heat_treated wood temperature of the present invention illustrates the processing by the present invention less than 130 DEG C, can substantially reduce timber The temperature of high-temperature heat treatment, this is beneficial for the reduction of the input and cost of equipment.

3rd, the timber handled using the method for the present invention can be effectively improved wood dimensional stability, further expand timber Application range, to the efficient using being of great significance of timber.

2 timberphysics Mechanics Performance Testing of test example

According to standard GB/T/T 1928-2009《General requiements for physical and mechnical tests of wood》Measure embodiment 1, control The physical and mechanical property of the plank of example 1,2, test result are as shown in table 2.

Type	Elasticity modulus (MPa)	Static bending strength (MPa)
			Embodiment 1	6071	52.01
Reference examples 2	5542	47.56
			Reference examples 1	6001	52.12

From Table 2, it can be seen that after being handled in reference examples 2 using 180 DEG C, compared with embodiment 1 and reference examples 1, elasticity Modulus and static bending strength reduce significantly, and the mechanical property of carbonized wood and reference examples 1 that use the method for the present invention is thermally treated resulting in It is essentially identical, do not reduce, and it is significantly higher than reference examples 2, the Wood mechanical property of the method for the present invention processing remains intact, this hair Bright method heat-treated wood is small to the Effect on Mechanical Properties of timber.

In conclusion illustrate that treatment effect of the present invention can reach the dimensional stability effect for the high-temperature process for not handling material Fruit, and mechanical property is basically unchanged.

Claims

1. a kind of equipment for improving heat_treated wood rate, it is characterized in that, including the internal treating of wood room with cavity, ultrasound Wave system system, pumped vacuum systems, heating system, Wood modifier, dress material system and vapour system, wherein,

The ultrasonic system is made of the supersonic generator connected by conducting wire and at least one ultrasonic transducer, to putting The timber for being placed in material inner treatment chamber carries out ultrasonication；

The pumped vacuum systems is to treating of wood chamber interior cavity and is positioned over the indoor timber progress vacuumize process of material processing；

The Wood modifier includes pretreatment fluid and modification liquid, wherein the pretreatment fluid is water；The modification Liquid selects strong acid weak base salting liquid；

2. equipment as described in claim 1, it is characterized in that, the treating of wood room is made of the material of corrosion resistance, under Portion sets metal partion (metp) that process chamber cavity is divided into upper and lower two mutually independent parts, top for place pending timber, Modifying agent, heating system；Lower part is used to place the ultrasonic transducer of ultrasonication system.

3. equipment as claimed in claim 2, it is characterized in that, the ultrasonic transducer is mounted on the lower surface of metal partion (metp).

4. equipment as described in claim 1, it is characterized in that, the pumped vacuum systems is arranged on the outside of process chamber, including true Sky pump, pressure controller and pressure gauge, the treating of wood room are connected with pumped vacuum systems by vacuum export mouth, are realized and are taken out very Empty set is united to the treating of wood room cavity vacuumize process.

5. equipment as described in claim 1, it is characterized in that, the heating system is arranged on the indoor top of processing, including adding Hot device, circulating fan, wind deflector, wherein：Wind deflector is located at the lower part of heater, circulating fan；Heater is arranged on circulated air The both sides of machine, heater are arranged along process chamber length direction.

6. equipment as described in claim 1, it is characterized in that, the dress material system includes frame, fixation kit and fixing bracket； Wherein, frame shelf of cuboid or the square bodily form made of stainless steel tube, the fixation kit and frame it is upper Bottom surface is fixedly connected；The fixing bracket is arranged on the bottom surface of frame, is fixedly connected with frame bottom surface.

7. equipment as claimed in claim 6, it is characterized in that, the frame cuboid or square made of stainless steel tube The shelf of shape, bottom surface and 3 sides reticulate structure, upper bottom surface and another side in open state, in open shape The side of state becomes open side.

8. equipment as claimed in claim 6, it is characterized in that, the fixation kit include 1 mesh caps, multiple springs, 2 pieces Pressing plate and one or more fixation locking members, wherein the spring is arranged on the lower surface of the lower surface of head cover, one end and head cover It is fixedly connected, the other end is fixedly connected with the pressing plate.

9. equipment as claimed in claim 6, it is characterized in that, the fixed locking member is arranged on head cover and frame facet top is solid Surely on the upper side edge of the opposite another side in the side that connects；Or the fixed locking member setting is in addition to head cover and frame side wall top On the upper side edge of other 3 sides except the side that portion is fixedly connected.

10. equipment as described in claim 1, it is characterized in that, the vapour system includes steam generator, jet chimney and sets The steam control valve on pipeline is put, the vapour system is connected by steam introducing port with treating of wood room, at timber The indoor importing steam of reason.