CN104400865A - Production and processing method of toon wood homogeneous carbonized wood - Google Patents
Production and processing method of toon wood homogeneous carbonized wood Download PDFInfo
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Abstract
The invention discloses a production and processing method of toon wood homogeneous carbonized wood, and belongs to the technical field of processing of forestry products. The method comprises the steps of degreasing, carbonization and the like. The method has the beneficial effects that the toon wood is degreased to avoid the phenomenon of non-uniform carbonization degrees on the inner and outer layers caused by over carbonization on the outer layer at high temperature due to grease overflow in the carbonization process and lay a good foundation for realizing homogenous carbonization; different temperature rise and cooling speeds, carbonization temperatures and carbonization times are adopted according to different materials and colors of the toon raw material, so that each part from outside to inside of the toon wood is carbonized to the same degree, the moisture absorption, the dimensional stability, the mechanical performance, the anti-corrosion performance, the hardness, the pressure resistance, the bonding performance and the surface coating performance, particularly the color, of each part of the toon wood all show the same good characteristic to achieve a true homogenous carbonization effect, the application field of the toon wood is greatly expanded, and the application value and the economic benefit are improved.
Description
Technical field
The invention belongs to forestry products processing technique field, particularly a kind of production and processing method of toon timber homogeneity carbonized wood.
Background technology
Carbonized wood is not carrying out charing process containing applying high temperature under any chemical agent condition to timber, its nutritional labeling is destroyed, thus there is good antiseptic insect-repelling function, because its water absorbing functional groups hemicellulose is reorganized, make product have good physical property.
Carbonized wood is real Green Product, although product has antiseptic insect-repelling performance, but not containing any harmful substance, not only increase the service life of timber, and the waste disposal in process of production in use procedure and after using can not have any negative effect to human body, animal and environment; Wood surface after charing has dark-brown aesthetic, and have effect that is anticorrosion and antibiont invasion and attack, its moisture content is low, not easily water suction, stable material quality, indeformable, complete degreasing overflow fat, heat-proof quality is good, construction is simple, brushing is convenient, without special odor, be desirable indoor and sauna material, become bathroom and decorate new fashion trend; Its Perishing prevention, anti-insect, resistance to deformation cracking, resistance to elevated temperatures also becomes the ideal material of outdoor swimming pool view.
Carbonized wood is in the market top layer carbonized wood and deep charring wood mainly, top layer carbonized wood is with oxygen welding gun barbecue, makes wood surface have the very thin charring layer of one deck, can the paint of analogy timber to the change of wood performance, but the wood grain of concave-convex surface can be highlighted, produce stereoeffect; Deep charring wood is through the timber of the high temperature carbonization technical finesse of about 200 degree, its deep layer is made also to obtain charing process, destroy the nutritional labeling of its inside, change the structure of its water absorbing functional groups hemicellulose, the object reaching anticorrosion protection against the tide and then the effect increased the service life.
Although deep charring wood can reach the effect of anticorrosion protection against the tide, but shade differs inside and outside it, have a strong impact on the quality effect of further converted products, for this reason, inventor research team is through studying practice for a long period of time, sum up the method for producing of a set of homogeneity carbonized wood, can not only anticorrosion protection against the tide, and also beautiful appearance, even, durable.So inventor R&D team has applied for the patent of " taking Masson pine timber as the production method of raw-material homogeneity carbonized wood " in June, 2013, number of patent application is 2013102572655, this patented method can make Masson pine timber obtain the charing process of same degree in each position from outside to inside, make the hygroscopicity at its each position, dimensional stability, mechanical property, corrosion resistance, hardness and crushing resistance, gummed and top finishing performance, particularly color all demonstrates identical superperformance, reaches real homogeneity charred effect.
But, through production practices one year over, inventor finds, still there are some problems in this patented method, first, degreasing imperfection, impact drying and charred effect, next is undesirable for the homogeneity effect of the thicker timber of 5-6cm, is that more difficult operation is accurate in the control of degree of carbonization again.Also find in addition, different materials needs to take different temperature, just can obtain better effect.
Summary of the invention
Technical problem to be solved by this invention is to provide one by toon timber through high-temperature process, to change its mechanical property, anti-corrosion property energy and bonding property.
For solving the problems of the technologies described above, the technical solution adopted in the present invention is a kind of production and processing method of toon timber homogeneity carbonized wood, by sanction saw, degreasing, drying, moisture regain, stacking, enter kiln, intensification, charing, cooling, kiln discharge totally ten one procedures complete, its feature is as follows at concrete production stage.
(1) cut out saw: cut out by toon timber and be sawn into the timber that length is 100-300cm, thickness 3-6cm.
(2) degreasing: boil 5-6 hour continuously, then rinsed clean in clear water by being immersed in lime aqueous solution after toon timber pile, and then be immersed in hydrogen peroxide solution and boil 5-6 hour continuously, and then in clear water rinsed clean; Wherein the concentration of lime aqueous solution is 20%, and hydrogen peroxide solution concentration is 1 ‰.
(3) dry: vapour seasoning kiln temperature is regulated between 73-79 DEG C, and make it in saturation state to spray water steam in vapour seasoning kiln, then the toon timber after degreasing is put into vapour seasoning kiln fully to absorb water, after 25-30 hour, the water suction of toon timber reaches capacity state, then spray water steam is stopped, regulate vapour seasoning kiln temperature at 66-71 DEG C, vexed kiln 12-15 hour, then open steam vent to be outwards vented, and vapour seasoning kiln temperature is risen to 83-88 DEG C gradually, carry out getting rid of water 3-5 hour; So 2-4 time repeatedly, then detect moisture content, until moisture content is 6-8%.
(4) get damp again: dried toon timber is moved to moisture regain room and stack 10-12 days, make the fiber moisture absorption uniformly and stably in toon timber, and by moisture control at 10-12%; .
(5) stacking: by the toon timber stacking after moisture regain on steelframe, separate with stainless steel strip between timber and timber, briquetting is placed on upper strata; Wherein the thickness of steel bar is 1-2cm, and briquetting is the high-density objects of stable performance, its placement amount be 0.5-1.0 ton/square metre.
(6) enter kiln: pushed by toon timber good for code in charing process kiln, sealing wicket, closes each pore of charing process kiln.
(7) heat up: heat up in kiln, intensification 4-6 DEG C per hour, was interrupted every 10 minutes and erupts steam in kiln, make kiln humidity remain 100%; First at 80 DEG C of temperature places, stable continuing keeps 2-4 hour, and then at 120 DEG C of temperature places, stable continuing keeps 2-4 hour, then at 140 DEG C of temperature places, stable continuing keeps 2-4 hour, then rises to 220-250 DEG C gradually.
(8) carbonize: keep kiln temperature to be 220-250 DEG C according to toon timber raw material condition and color demand, be interrupted between 10 minutes and erupt steam in kiln, make kiln humidity remain 100%, continue process 40-60 minute.
(9) lower the temperature: open each pore, lower the temperature in kiln, cooling 4-6 DEG C per hour, is interrupted and erupts steam in kiln, and makes kiln humidity be down to 40%-45% gradually from 100%; First 2-4 hour is kept at 140 DEG C of temperature places in temperature-fall period, 2-4 hour is kept again at 120 DEG C of temperature places, then cooling is continued, in-furnace temperature is maintained and carries out drying higher than room temperature 50 DEG C of places, until when moisture content is 4.5%-8.0%, close thermal source, stop eruption steam, open kiln completely, Temperature fall.
(10) kiln discharge: when kiln temperature is down to below 45 DEG C, takes out timber, is the homogeneity carbide wood finished product of toon timber.
At heating step (8), carbonization (9) with cooling step (10) in, when charing toon early wood and when needing bronzing carbonized wood, intensification per hour 4 DEG C during intensification, processes 40 minutes during charing, cooling per hour 4 DEG C during cooling at 220-225 DEG C.
At heating step (8), carbonization (9) with cooling step (10) in, when charing toon early wood and when needing sepia carbonized wood, intensification per hour 5 DEG C during intensification, processes 50 minutes during charing, cooling per hour 5 DEG C during cooling at 225-230 DEG C.
At heating step (8), carbonization (9) with cooling step (10) in, when charing toon early wood and when needing dark brown carbonized wood, intensification per hour 6 DEG C during intensification, processes 60 minutes during charing, cooling per hour 5 DEG C during cooling at 230-235 DEG C.
At heating step (8), carbonization (9) with cooling step (10) in, as charing toon late wood and when needing sepia carbonized wood, intensification per hour 4 DEG C during intensification, processes 40 minutes during charing, cooling per hour 4 DEG C during cooling at 235-240 DEG C.
At heating step (8), carbonization (9) with cooling step (10) in, as charing toon late wood and when needing dark brown carbonized wood, intensification per hour 5 DEG C during intensification, processes 50 minutes during charing, cooling per hour 5 DEG C during cooling at 240-245 DEG C.
At heating step (8), carbonization (9) with cooling step (10) in, as charing toon late wood and when needing black brown carbonized wood, intensification per hour 6 DEG C during intensification, processes 60 minutes during charing, cooling per hour 6 DEG C during cooling at 245-250 DEG C.
The invention has the beneficial effects as follows and first toon timber is carried out ungrease treatment, can avoid carbonize in processing procedure because excessive fat too much and at high temperature time cause outer charing excessively to occur phenomenon uneven inside and outside degree of carbonization, lay a solid foundation for realizing homogeneity charing; Directly oxygen in kiln is removed after envelope kiln, additional inert gas can be avoided; Then different intensifications and cooling rate, carbonization temperature and carbonization time is taked according to the raw-material unlike material of toon and different colours target, can ensure that toon timber obtains the charing process of same degree in each position from outside to inside like this, make the hygroscopicity at its each position, dimensional stability, mechanical property, corrosion resistance, hardness and crushing resistance, gummed and top finishing performance, particularly color all demonstrates identical superperformance, reaches real homogeneity charred effect.
Detailed description of the invention
Below in conjunction with embodiment, the invention will be further described, and following examples are intended to the present invention instead of limitation of the invention further are described, should not limit the scope of the invention with this.
Embodiment 1.
10m3 toon timber early wood is cut out and is sawn into the timber that length is 100cm, thickness 3cm; Then being immersed in concentration is boil 5 hours continuously in the lime aqueous solution of 20%, then puts into clear water rinsed clean, and being then immersed in concentration is boil 5 hours continuously in 1 ‰ hydrogen peroxide solutions, then puts into clear water rinsed clean; Then vapour seasoning kiln temperature is adjusted to 73 DEG C, and make it in saturation state to spray water steam in vapour seasoning kiln, then the toon timber after degreasing is put into vapour seasoning kiln fully to absorb water, after 25 hours, the water suction of toon timber reaches capacity state, then stops spray water steam, regulates vapour seasoning kiln temperature to be 66 DEG C, vexed kiln 12 hours, then open steam vent to be outwards vented, and vapour seasoning kiln temperature is risen to 83 DEG C gradually, carry out getting rid of water 3 hours; So 2 times repeatedly, then detect moisture content, recording moisture content is 6%; Then dried toon timber is moved to moisture regain room and stack 10 days, make the fiber moisture absorption uniformly and stably in toon timber, obtain the toon timber that moisture content is 10%.
Then by toon timber stacking on steelframe, separate with the stainless steel strip that thickness is 1cm between timber and timber, amassing because of upper surface is 5 square metres, so place 2.5 tons of channel-section steels as briquetting; Then toon timber good for code is pushed in charing process kiln, then seal wicket, close each pore; Then heat up in kiln, intensification per hour 4 DEG C, was interrupted every 10 minutes and erupts steam in kiln, make relative humidity in kiln remain 100%; First stablize at 80 DEG C of temperature places and continue maintenance 2 hours, then stablize at 120 DEG C of temperature places and continue maintenance 2 hours, then stablize lasting maintenance 2 hours at 140 DEG C of temperature places, then rise to 220 DEG C gradually; And continuation interruption erupts steam in kiln, makes relative humidity in kiln remain 100%, after continuing process 40min, open each pore, lower the temperature in kiln, cooling per hour 4 DEG C, continues to be interrupted every 10 minutes to erupt steam simultaneously in kiln, and makes relative humidity in kiln be down to 40% gradually from 100%; First 2 hours are kept at 140 DEG C of temperature places in temperature-fall period, 2 hours are kept again at 120 DEG C of temperature places, then cooling is continued, room temperature was 30 DEG C at that time, so in-furnace temperature to be maintained dry 4 hours of 80 DEG C of places, when at this moment to record moisture content be 4.5%, so closedown thermal source, stop eruption steam, open kiln completely, carry out Temperature fall; When kiln temperature is down to below 45 DEG C, takes out timber, namely obtain the homogeneity carbide wood finished product of toon timber; The color of this carbonized wood is bronzing.
Embodiment 2.
10m3 toon timber early wood is cut out and is sawn into the timber that length is 200cm, thickness 5cm; Then being immersed in concentration is boil 5 hours continuously in the lime aqueous solution of 20%, then puts into clear water rinsed clean, and being then immersed in concentration is boil 5 hours continuously in 1 ‰ hydrogen peroxide solutions, then puts into clear water rinsed clean; Then vapour seasoning kiln temperature is adjusted to 73 DEG C, and make it in saturation state to spray water steam in vapour seasoning kiln, then the toon timber after degreasing is put into vapour seasoning kiln fully to absorb water, after 27 hours, the water suction of toon timber reaches capacity state, then stops spray water steam, regulates vapour seasoning kiln temperature to be 67 DEG C, vexed kiln 13 hours, then open steam vent to be outwards vented, and vapour seasoning kiln temperature is risen to 84 DEG C gradually, carry out getting rid of water 4 hours; So 3 times repeatedly, then detect moisture content, recording moisture content is 6.2%; Then dried toon timber is moved to moisture regain room and stack 10 days, make the fiber moisture absorption uniformly and stably in toon timber, obtain the toon timber that moisture content is 11.3%.
Then by moisture regain after toon timber stacking on steelframe, separate with the stainless steel strip that thickness is 1cm between timber and timber, amassing because of upper surface is 5 square metres, so placement 2.5 tons of channel-section steels as briquetting; Then toon timber good for code is pushed in charing process kiln, then seal wicket, close each pore; Then heat up in kiln, because of needs sepia carbonized wood, therefore intensification per hour 5 DEG C, be interrupted every 10 minutes and erupt steam in kiln, make relative humidity in kiln remain 100%; First stablize at 80 DEG C of temperature places and continue maintenance 2 hours, then stablize at 120 DEG C of temperature places and continue maintenance 2 hours, then stablize lasting maintenance 2 hours at 140 DEG C of temperature places, then rise to 225 DEG C gradually; Continue to be interrupted every 10 minutes to erupt steam in kiln, make relative humidity in kiln remain 100%, continue process 50min; Then open each pore, lower the temperature in kiln, cooling per hour 5 DEG C, is interrupted and erupts steam in kiln, and makes relative humidity in kiln be down to 40% gradually from 100%; First 2 hours are kept at 140 DEG C of temperature places in temperature-fall period, 2 hours are kept again at 120 DEG C of temperature places, then cooling is continued, room temperature was 26 DEG C at that time, so in-furnace temperature to be maintained 76 DEG C of dry 260min in place, recording moisture content is 5.9%, so closedown thermal source, stop eruption steam, open kiln completely, carry out Temperature fall; When kiln temperature is down to below 45 DEG C, takes out timber, obtain the homogeneity carbide wood finished product of toon timber; The color of this carbonized wood is sepia carbonized wood.
Embodiment 3.
10m3 toon timber early wood is cut out and is sawn into the timber that length is 300cm, thickness 6cm; Then being immersed in concentration is boil 5 hours continuously in the lime aqueous solution of 20%, then puts into clear water rinsed clean, and being then immersed in concentration is boil 5 hours continuously in 1 ‰ hydrogen peroxide solutions, then puts into clear water rinsed clean; Then vapour seasoning kiln temperature is adjusted to 75 DEG C, and make it in saturation state to spray water steam in vapour seasoning kiln, then the toon timber after degreasing is put into vapour seasoning kiln fully to absorb water, after 29 hours, the water suction of toon timber reaches capacity state, then stops spray water steam, regulates vapour seasoning kiln temperature at 68 DEG C, vexed kiln 14 hours, then open steam vent to be outwards vented, and vapour seasoning kiln temperature is risen to 85 DEG C gradually, carry out getting rid of water 5 hours; So 4 times repeatedly, then detect moisture content, recording moisture content is 6.5%; Then dried toon timber is moved to moisture regain room and stack 10 days, make the fiber moisture absorption uniformly and stably in toon timber, obtain the toon timber that moisture content is 11.2%.
Then by moisture regain after toon timber stacking on steelframe, separate with the stainless steel strip that thickness is 1cm between timber and timber, amassing because of upper surface is 5 square metres, so placement 3 tons of cement blocks as briquetting; Then toon timber good for code is pushed in charing process kiln, then seal wicket, close each pore of charing process kiln; Then heat up in kiln, because of needs dark brown carbonized wood, therefore intensification per hour 6 DEG C, be interrupted every 10 minutes and erupt steam in kiln, make relative humidity in kiln remain 100%; First at 80 DEG C of temperature places, stable continuing keeps 150min, and then at 120 DEG C of temperature places, stable continuing keeps 150min, then at 140 DEG C of temperature places, stable continuing keeps 150min, then rises to 230 DEG C gradually; Continue to be interrupted every 10 minutes to erupt steam in kiln, make relative humidity in kiln remain 100%, continue process 60min; Then open each pore, lower the temperature in kiln, cooling per hour 6 DEG C, is interrupted and erupts steam in kiln, and makes relative humidity in kiln be down to 41% gradually from 100%; First 150min is kept at 140 DEG C of temperature places in temperature-fall period, 150min is kept again at 120 DEG C of temperature places, then cooling is continued, because room temperature is 28 DEG C, so in-furnace temperature to be maintained 78 DEG C of dry 220min in place, recording moisture content is 6.0%, so closedown thermal source, stop eruption steam, open kiln completely, carry out Temperature fall; When kiln temperature is down to below 45 DEG C, takes out timber, be the homogeneity carbide wood finished product of toon timber; The color of this carbonized wood is dark brown carbonized wood.
Embodiment 4.
10m3 toon timber late wood is cut out and is sawn into the timber that length is 100cm, thickness 3cm; Then being immersed in concentration is boil 6 hours continuously in the lime aqueous solution of 20%, then puts into clear water rinsed clean, and being then immersed in concentration is boil 6 hours continuously in 1 ‰ hydrogen peroxide solutions, then puts into clear water rinsed clean; Then vapour seasoning kiln temperature is regulated at 76 DEG C, and make it in saturation state to spray water steam in vapour seasoning kiln, then the toon timber after degreasing is put into vapour seasoning kiln fully to absorb water, after 28 hours, the water suction of toon timber reaches capacity state, then stops spray water steam, regulates vapour seasoning kiln temperature at 69 DEG C, vexed kiln 14 hours, then open steam vent to be outwards vented, and vapour seasoning kiln temperature is risen to 86 DEG C gradually, carry out getting rid of water 4.5 hours; So 2 times repeatedly, then detect moisture content, recording moisture content is 8%; Then dried toon timber is moved to moisture regain room and stack 12 days, make the fiber moisture absorption uniformly and stably in toon timber, obtain the toon timber that moisture content is 12%.
Then by moisture regain after toon timber stacking on steelframe, separate with the stainless steel strip that thickness is 1.5cm between timber and timber, amassing because of upper surface is 5 square metres, so placement 3.5 tons of channel-section steels as briquetting; Then toon timber good for code is pushed in charing process kiln, then seal wicket, close each pore of charing process kiln; Then heat up in kiln, because of needs sepia carbonized wood, therefore intensification per hour 4 DEG C, be interrupted every 10 minutes and erupt steam in kiln, make relative humidity in kiln remain 100%; First stablize at 80 DEG C of temperature places and continue maintenance 3.5 hours, then stablize at 120 DEG C of temperature places and continue maintenance 3.5 hours, then stablize lasting maintenance 3.5 hours at 140 DEG C of temperature places, then rise to 235 DEG C gradually; Continue to be interrupted every 10 minutes to erupt steam in kiln, make relative humidity in kiln remain 100%, continue process 180min; Then open each pore, lower the temperature in kiln, cooling per hour 4 DEG C, is interrupted and erupts steam in kiln, and makes relative humidity in kiln be down to 43% gradually from 100%; First 3.5 hours are kept at 140 DEG C of temperature places in temperature-fall period, 3.5 hours are kept again at 120 DEG C of temperature places, then cooling is continued, because room temperature is 31 DEG C, therefore in-furnace temperature is maintained dry 4 hours of 81 DEG C of places, recording moisture content is 7.0%, so closedown thermal source, stop eruption steam, open kiln completely, carry out Temperature fall; When kiln temperature is down to below 45 DEG C, takes out timber, obtain the homogeneity carbide wood finished product of toon timber; The color of this carbonized wood is sepia carbonized wood.
Embodiment 5.
10m3 toon timber late wood is cut out and is sawn into the timber that length is 200cm, thickness 5cm; Then being immersed in concentration is boil 6 hours continuously in the lime aqueous solution of 20%, then puts into clear water rinsed clean, and being then immersed in concentration is boil 6 hours continuously in 1 ‰ hydrogen peroxide solutions, then puts into clear water rinsed clean; Then vapour seasoning kiln temperature is regulated at 77 DEG C, and make it in saturation state to spray water steam in vapour seasoning kiln, then the toon timber after degreasing is put into vapour seasoning kiln fully to absorb water, after 29 hours, the water suction of toon timber reaches capacity state, then stops spray water steam, regulates vapour seasoning kiln temperature at 69 DEG C, vexed kiln 14.5 hours, then open steam vent to be outwards vented, and vapour seasoning kiln temperature is risen to 86 DEG C gradually, carry out getting rid of water 4.5 hours; So 4 times repeatedly, then detect moisture content, until moisture content is 8%; Then dried toon timber is moved to moisture regain room and stack 12 days, make the fiber moisture absorption uniformly and stably in toon timber, obtain the toon timber that moisture content is 12%.
Then by moisture regain after toon timber stacking on steelframe, separate with the stainless steel strip that thickness is 1cm between timber and timber, amassing because of upper surface is 5 square metres, so placement 4.5 tons of cement blocks as briquetting; Then toon timber good for code is pushed in charing process kiln, then seal wicket, close each pore of charing process kiln; Then heat up in kiln, because of needs dark brown carbonized wood, therefore intensification per hour 5 DEG C, be interrupted every 10 minutes and erupt steam in kiln, make relative humidity in kiln remain 100%; First at 80 DEG C of temperature places, stable continuing keeps 220min, and then at 120 DEG C of temperature places, stable continuing keeps 220min, then at 140 DEG C of temperature places, stable continuing keeps 220min, then rises to 240 DEG C gradually; Continue to be interrupted every 10 minutes to erupt steam in kiln, make relative humidity in kiln remain 100%, continue process 50min; Then open each pore, lower the temperature in kiln, cooling per hour 5 DEG C, is interrupted and erupts steam in kiln, and makes relative humidity in kiln be down to 44% gradually from 100%; First 220min is kept at 140 DEG C of temperature places in temperature-fall period, 220min is kept again at 120 DEG C of temperature places, then cooling is continued, because of room temperature 32 DEG C, therefore in-furnace temperature is maintained 82 DEG C of dry 240min in place, recording moisture content is 7.5%, so closedown thermal source, stop eruption steam, open kiln completely, carry out Temperature fall; When kiln temperature is down to below 45 DEG C, takes out timber, obtain the homogeneity carbide wood finished product of toon timber; The color of this carbonized wood is dark brown carbonized wood.
Embodiment 6.
10m3 toon timber late wood is cut out and is sawn into the timber that length is 300cm, thickness 6cm; Then being immersed in concentration is boil 6 hours continuously in the lime aqueous solution of 20%, then puts into clear water rinsed clean, and being then immersed in concentration is boil 6 hours continuously in 1 ‰ hydrogen peroxide solutions, then puts into clear water rinsed clean; Then vapour seasoning kiln temperature is regulated at 79 DEG C, and make it in saturation state to spray water steam in vapour seasoning kiln, then the toon timber after degreasing is put into vapour seasoning kiln fully to absorb water, after 30 hours, the water suction of toon timber reaches capacity state, then stops spray water steam, regulates vapour seasoning kiln temperature at 71 DEG C, vexed kiln 15 hours, then open steam vent to be outwards vented, and vapour seasoning kiln temperature is risen to 88 DEG C gradually, carry out getting rid of water 5 hours; So 4 times repeatedly, then detect moisture content, until moisture content is 8%; Then dried toon timber is moved to moisture regain room and stack 12 days, make the fiber moisture absorption uniformly and stably in toon timber, obtain the toon timber that moisture content is 12%.
Then by moisture regain after toon timber stacking on steelframe, separate with the stainless steel strip that thickness is 2cm between timber and timber, amassing because of upper surface is 5 square metres, so placement 5 tons of channel-section steels as briquetting; Then toon timber good for code is pushed in charing process kiln, then seal wicket, close each pore of charing process kiln; Then heat up in kiln, because of the black brown carbonized wood of needs, therefore intensification per hour 6 DEG C, be interrupted every 10 minutes and erupt steam in kiln, make relative humidity in kiln remain 100%; First stablize at 80 DEG C of temperature places and continue maintenance 4 hours, then stablize at 120 DEG C of temperature places and continue maintenance 4 hours, then stablize lasting maintenance 4 hours at 140 DEG C of temperature places, then rise to 205 DEG C gradually; Continue to be interrupted and erupt steam in 10 points of clockwise kilns, make relative humidity in kiln remain 100%, continue process 60min; Then open each pore, lower the temperature in kiln, cooling per hour 6 DEG C, be interrupted every 10 minutes and erupt steam in kiln, and make relative humidity in kiln be down to 45% gradually from 100%; First 4 hours are kept at 140 DEG C of temperature places in temperature-fall period, 4 hours are kept again at 120 DEG C of temperature places, then cooling is continued, because room temperature is 33 DEG C, therefore in-furnace temperature is maintained 83 DEG C of dry 240min in place, recording moisture content is 8.0%, so closedown thermal source, stop eruption steam, open kiln completely, carry out Temperature fall; When kiln temperature is down to below 45 DEG C, takes out timber, obtain the homogeneity carbide wood finished product of toon timber; The color of this carbonized wood is black brown carbonized wood.
Compared with the Masson pine timber homogeneity carbonized wood product that the homogeneity carbonized wood now various embodiments of the present invention processed and inventor team applied for last year, obtain following comparison sheet.
the Performance comparision table of toon homogeneity carbide wood and masson pine homogeneity carbonized wood
As can be seen here, by improving degreasing method and carbonization temperature and time, carbonized wood can be made to reach better homogeneity effect, also can improve gummed property effect simultaneously.
Claims (7)
1. the production and processing method of toon timber homogeneity carbonized wood, by sanction saw, degreasing, drying, moisture regain, stacking, enter kiln, intensification, charing, cooling, kiln discharge totally ten one procedures complete, its feature is as follows at concrete production stage:
(1) cut out saw: cut out by toon timber and be sawn into the timber that length is 100-300cm, thickness 3-6cm;
(2) degreasing: boil 5-6 hour continuously, then rinsed clean in clear water by being immersed in lime aqueous solution after toon timber pile, and then be immersed in hydrogen peroxide solution and boil 5-6 hour continuously, and then in clear water rinsed clean; Wherein the concentration of lime aqueous solution is 20%, and hydrogen peroxide solution concentration is 1 ‰;
(3) dry: vapour seasoning kiln temperature is regulated between 73-79 DEG C, and make it in saturation state to spray water steam in vapour seasoning kiln, then the toon timber after degreasing is put into vapour seasoning kiln fully to absorb water, after 25-30 hour, the water suction of toon timber reaches capacity state, then spray water steam is stopped, regulate vapour seasoning kiln temperature at 66-71 DEG C, vexed kiln 12-15 hour, then open steam vent to be outwards vented, and vapour seasoning kiln temperature is risen to 83-88 DEG C gradually, carry out getting rid of water 3-5 hour; So 2-4 time repeatedly, then detect moisture content, until moisture content is 6-8%;
(4) get damp again: dried toon timber is moved to moisture regain room and stack 10-12 days, make the fiber moisture absorption uniformly and stably in toon timber, and by moisture control at 10-12%;
(5) stacking: by the toon timber stacking after moisture regain on steelframe, separate with stainless steel strip between timber and timber, briquetting is placed on upper strata; Wherein the thickness of steel bar is 1-2cm, and briquetting is the high-density objects of stable performance, its placement amount be 0.5-1.0 ton/square metre;
(6) enter kiln: pushed by toon timber good for code in charing process kiln, sealing wicket, closes each pore of charing process kiln;
(7) heat up: heat up in kiln, intensification 4-6 DEG C per hour, was interrupted every 10 minutes and erupts steam in kiln, make kiln humidity remain 100%; First at 80 DEG C of temperature places, stable continuing keeps 2-4 hour, and then at 120 DEG C of temperature places, stable continuing keeps 2-4 hour, then at 140 DEG C of temperature places, stable continuing keeps 2-4 hour, then rises to 220-250 DEG C gradually;
(8) carbonize: keep kiln temperature to be 220-250 DEG C according to toon timber raw material condition and color demand, be interrupted between 10 minutes and erupt steam in kiln, make kiln humidity remain 100%, continue process 40-60 minute;
(9) lower the temperature: open each pore, lower the temperature in kiln, cooling 4-6 DEG C per hour, is interrupted and erupts steam in kiln, and makes kiln humidity be down to 40%-45% gradually from 100%; First 2-4 hour is kept at 140 DEG C of temperature places in temperature-fall period, 2-4 hour is kept again at 120 DEG C of temperature places, then cooling is continued, in-furnace temperature is maintained and carries out drying higher than room temperature 50 DEG C of places, until when moisture content is 4.5%-8.0%, close thermal source, stop eruption steam, open kiln completely, Temperature fall;
(10) kiln discharge: when kiln temperature is down to below 45 DEG C, takes out timber, is the homogeneity carbide wood finished product of toon timber.
2. the production and processing method of toon timber homogeneity carbonized wood according to claim 1, to it is characterized in that at heating step (8), carbonization (9) with cooling step (10) in, when charing toon early wood and when needing bronzing carbonized wood, intensification per hour 4 DEG C during intensification, at 220-225 DEG C, 40 minutes are processed, cooling per hour 4 DEG C during cooling during charing.
3. the production and processing method of toon timber homogeneity carbonized wood according to claim 1, to it is characterized in that at heating step (8), carbonization (9) with cooling step (10) in, when charing toon early wood and when needing sepia carbonized wood, intensification per hour 5 DEG C during intensification, at 225-230 DEG C, 50 minutes are processed, cooling per hour 5 DEG C during cooling during charing.
4. the production and processing method of toon timber homogeneity carbonized wood according to claim 1, to it is characterized in that at heating step (8), carbonization (9) with cooling step (10) in, when charing toon early wood and when needing dark brown carbonized wood, intensification per hour 6 DEG C during intensification, at 230-235 DEG C, 60 minutes are processed, cooling per hour 5 DEG C during cooling during charing.
5. the production and processing method of toon timber homogeneity carbonized wood according to claim 1, to it is characterized in that at heating step (8), carbonization (9) with cooling step (10) in, as charing toon late wood and when needing sepia carbonized wood, intensification per hour 4 DEG C during intensification, at 235-240 DEG C, 40 minutes are processed, cooling per hour 4 DEG C during cooling during charing.
6. the production and processing method of toon timber homogeneity carbonized wood according to claim 1, to it is characterized in that at heating step (8), carbonization (9) with cooling step (10) in, as charing toon late wood and when needing dark brown carbonized wood, intensification per hour 5 DEG C during intensification, at 240-245 DEG C, 50 minutes are processed, cooling per hour 5 DEG C during cooling during charing.
7. the production and processing method of toon timber homogeneity carbonized wood according to claim 1, to it is characterized in that at heating step (8), carbonization (9) with cooling step (10) in, as charing toon late wood and when needing black brown carbonized wood, intensification per hour 6 DEG C during intensification, at 245-250 DEG C, 60 minutes are processed, cooling per hour 6 DEG C during cooling during charing.
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