CN101941223A - Method for preparation of natural protector by natural wood/bamboo processing waste gas - Google Patents
Method for preparation of natural protector by natural wood/bamboo processing waste gas Download PDFInfo
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Abstract
The invention relates to a method for the preparation of natural protector by natural wood/bamboo processing waste gas, comprising the steps of: at first, selecting some woods or bamboos containing extracts capable of endowing the woods with natural durability or biohazard resistance, drying the woods or the bamboos via a wood drying device, connecting a waste gas condensation recovery device to a waste gas outlet of the drying device so that the products obtained can be used as natural protector, and then separating the waste gas condensation recovered products via an oil-water separation device to remove waste water and impurities, so as to result in the separated products which can be used for natural protector, or further separating and purifying the above products via a separation purification device to result in more specialized natural chemical raw materials and natural protectors with different efficiencies capable of preventing rotting and mildew as well as expelling worm and mosquito; various resultant natural protectors are utilized to implement protection treatments, such as coating, immersion, pressure impregnation and the like, on wood or bamboo and articles thereof, achieving the purpose of protecting wood/bamboo naturally.
Description
Technical field
The present invention relates to a kind of method of natural protective agent preparation, more specifically, be meant a kind of method of utilizing timber bamboo processing Litter to prepare natural protective agent.
Background technology
Timber is a kind of human use natural material with a long history, widely used, also is a kind of environmental protection and energy saving, the natural material liked of people extremely.Timber is mainly by cellulose, hemicellulose and lignin, and a small amount of extract is formed.Though the content of timber extract is few, but its kind is abundant, contain polyatomic phenol according to domestic and international expert research and analysis timber extract, terpene, Resin Acid, more than 700 kind of organic compound (Peng Wanxi such as lipid and carbohydrate, Zhu Tonglin, the present Research and the trend of .2004. timber extracts such as Zheng Zhenzhen. the forestry science and technology exploitation, 18 (5): 6-9), these materials not only with the color of timber, smell and durability etc. have substantial connection, and, chemical compound lot can be directly used in spices, pesticide, anticorrisive agent, dyestuff, antioxidant and activator etc. have important chemical, the value of medical and fine chemistry industry.Organic solvent lixiviates such as the timber extract can water, alcohol, benzene, ethanol, ether, methods such as also available diluted alkaline lixiviate or steam distillation are extracted.Yet because the content of timber extract is less, extract can cause very high cost if the employing said method woods specially.And, utilize in the process the actual of timber, because the timber extract can influence wood gluing and association with pulp bleaching, cause the increase and the waste of timber adhesive and association with pulp bleaching agent, therefore, the timber extract is taken as unfavorable composition or harmful components for a long time.
Along with China's accession to the WTO and China's rapid economy development, the wood-processing industry of China has also obtained unprecedented development.At present, a year timber total flow surpasses more than 3.8 hundred million cubic metre, be second-biggest-in-the-world lumber consumption state, and the drying of wood is one of most important in the timber process, indispensable link.Yet, also can discharge a large amount of Litters in the timber drying, in order to reduce the pollution of Litter to environment, methods such as the burning of main at present employing Litter, biofiltration and absorption are controlled, but these technology and method not only need special equipment and measure, increased great amount of cost, and, be difficult in and obtain valuable repayment in this process, therefore, Litter is generally all untreated just to be discharged in the atmosphere, not only surrounding environment is polluted, and becomes real Litter.Therefore, to the efficient control and the recovery of discarded (gas) thing of timber processing, even will discard (gas) thing and " turn waste into wealth " and will produce important economic benefit and social benefit China's timber secondary industry, environmental protection and economic development.
At present; timber on the market and bamboo wood protective agent (also claiming protective agent); major part is made by chemical products; bigger to health and environmental hazard; though; timber and bamboo wood protective agent that many novel and environment-friendly types are also arranged; (patent application (patent) number: 200610027709.6) component utilized is nanoscale copper compound and citric acid etc. as a kind of Wood protective agent; as (the patent application (patent) number: 200810062631.0) utilize the bactericidal properties slaine of modified chitosan metal composite wood preservative and manufacture method thereof; shitosan; the new food preservative that perboric acid and its esters etc. are made; though have certain environmental protection function; but also used the chemical products that environment had harm to a certain extent, and production cost is higher.And a kind of novel wood preservative (patent application (patent) number: 200910147579.3) having adopted Chinese medicine preparations such as cnidium monnieri, kuh-seng, the fruit of summer cypress and smilax is to have antibiotic, insect protected effect as timber preservative, and domestomycetes also had certain inhibitory action, and be green material fully, but employed raw material is for self having the Chinese medicine of higher medical value, therefore, production cost is also higher.
Summary of the invention
For addressing the above problem, the objective of the invention is at the characteristics that produce drying of wood waste gas in the timber process, and a kind of method of utilizing natural timber bamboo processing Litter to prepare natural protective agent is proposed, in timber drying, adopt condensing unit with the condensation of drying of wood Litter, described condensed product is owing to comprise the component with protective agent effect, and it can be used as natural protective agent.Preferably condensed product can be separated then, remove waste water and obtain the natural protective agent product that process is separated with impurity component, utilize this product to handle and reach natural protection purpose timber and bamboo wood, also can further purify, obtain natural protective agent and natural industrial chemicals anticorrosion, various different efficacies such as expelling parasite is mosquito-proof, mildew-resistant this product.
For achieving the above object, the preparation method of a kind of timber provided by the invention and/or bamboo wood protective agent comprises the following steps:
(1) utilize drying equipment to carry out drying to containing at least a timber and/or bamboo wood with extract composition of timber and/or bamboo wood protective agent effect;
(2) waste gas that dry run produced is reclaimed in condensation, obtains product liquid.
Preferably, described preparation method also comprises:
(3) product liquid that obtains is reclaimed in condensation and carry out water-oil separating,, thereby obtain the product liquid that process is separated with removal moisture and solid impurity wherein.
Further preferred, described preparation method also comprises:
(4) to further separating through the product liquid that separates and purifies, thereby acquisition comprises the product of described at least a extract composition with protective agent effect or has the one-component product of the extract composition of protective agent effect.
Timber and/or bamboo wood protective agent effect refer to the effect with natural durability or antibiont harm function, comprise desinsection, antibiotic, anticorrosion, anti-oxidant, uvioresistant and/or effect such as weather-proof more specifically.In the prior art, various extract compositions and effect for timber and bamboo wood have been carried out big quantity research, for example can be referring to " present Research of timber extract and trend " (Peng Wanxi, Zhu Tonglin, the present Research and the trend of .2004. timber extracts such as Zheng Zhenzhen. the forestry science and technology exploitation, 18 (5): 6-9) and " timber is to the health-care efficacy of health and harm (1)---timber is to the health-care efficacy of health " (wangkai etc., 2006. timber is to the health-care efficacy of health and harm (1)---timber is to the health-care efficacy of health. forest product industry, 33 (1): 665-67) or the like document.Those skilled in the art can select suitable timber and bamboo wood according to actual needs for use.
Preferably, timber and/or the bamboo wood that is dried in the described step (1) is selected from camphorwood, sandalwood, Japan's Chinese juniper wood, Korean pine, China fir, Japanese cedar, the America pine, Japan cypress, cdear, arbor-vitae, sandalwood, Brazil produces Gossweilerodendron balsamiferum Harms, teak, black bamboo, Eucalyptus, the Taiwan Japan cypress, white oak, cypress, sassafrases, agalloch eaglewood, Chinese incense cedar, cloves, the green heart camphor tree in East Africa, Fokienia hodginsii, Chinese yew, Chinese pistache, boxwood, China tree, fir, Abelia biflora, larch, Lapland pine, pine, pinus sylvestris var. mongolica, paulownia, pencil cedar, Japanese cedar, bush, Taiwania cryptomerioides, ebony, Chinese toon, fragrant redwood, ginkgo, Chinese juniper, jujube tree, Chinese honey locust, the hardwood nanmu, mottled bamboo, in mao bamboon and the Cephalostachyum pergracile one or more.
Among the preparation method of aforesaid timber and/or bamboo wood protective agent, wherein: the described drying equipment of step (1) can be the used various drying equipments of wood-working factory, the conventional drying equipment, baking temperature that comprises about 100 ℃ of temperature is at superhigh temperature drying (heat treatment) equipment of 150～240 ℃ of 100～150 ℃ high temperature drying equipment, temperature, and the technology when drying process can be by ordinary production is carried out.
Among the preparation method of aforesaid timber and/or bamboo wood protective agent, wherein: the waste gas condensation described in the step (2) is reclaimed the condensation retracting device that is adopted and can directly be joined with dry exhaust emission tube, cooling medium inlet and cooling medium outlet are equipped with in condensing unit inside, dry waste gas is discharged through the cooled waste gas of condenser outlet port after the condensation, condensed product is discharged from the product discharge pipe of condensation retracting device, obtain condensed product, can also on condensing unit, equip simultaneously and recycle the heat energy apparatus that Litter carries.
In the preparation method's of aforesaid timber and/or bamboo wood protective agent the step (4), those skilled in the art can separate the expectation component or the components composition of purifying out different as required, and described separation is purified and can be adopted commercial equipment to carry out.
The present invention also provides prepared timber and/or bamboo wood protective agent according to above-mentioned preparation method.
For the method according to this invention prepared timber and/or bamboo wood protective agent, during use, the protection processing method that can adopt multiple routines such as brushing, immersion, pressure impregnate carries out protective treatment to timber or bamboo wood and goods thereof.
Therefore, the present invention also provides the means of defence of a kind of timber and/or bamboo wood, it is characterized in that, use according to said method prepared timber and/or bamboo wood protective agent and adopt the protection processing method that brushing, immersion or pressure impregnate that timber or bamboo wood are carried out protective treatment.
Can produce a large amount of Litters in the timber drying, and contain the abundant compound of forming by the timber extract in the Litter, as 25～30 kinds of australenes, terpene compound such as nopinene and camphene, and formic acid, organic acid such as acetate and propionic acid, formaldehyde, non-terpenes chemical composition (McDonald A.G. such as acetaldehyde and furfural, P.H.Dare, J.S.Gifford, et al.2002.Assessment of airemissions from industrial kiln drying of Pinus radiata wood.Holz als Roh-undWerkstoff, 60 (3): 181-190).Therefore, this patent produces the actual conditions of Litter in conjunction with the drying of wood in China's timber process, utilize the method for a kind of Litter recovery and separating treatment, with the discarded object in the timber process, especially refer to that the Litter that produces in the timber drying recycles, utilizing this patent to reclaim the Litter that obtains will exist with the form of liquid state, this product is owing to contain natural flavoring, drive the agent of (killing) worm, anticorrisive agent, dyestuff, composition such as antioxidant and activator, not only can directly cover with paint, lacquer, colour wash, etc. on timber and bamboo wood surface, reach the natural protection and the decoration function of timber and bamboo wood, also can utilize this product to separate the different active ingredient of purifying out as required, prepare and have selectivity or multiduty desinsection, antibiotic, anticorrosion, anti-oxidant, uvioresistant, the natural protective agent of weatherability.Because this product derives from the natural timber raw material, so, be a kind of product of natural, environmental protection.
The present invention's characteristics compared with prior art are: in recent years, raising along with China's economic development, living standards of the people, the consumption of timber and goods is also increasing rapidly, at present, China's year timber total flow is above more than 3.8 hundred million cubic metre, it is second-biggest-in-the-world lumber consumption state, and the drying of wood is one of most important in the timber process, indispensable link, though the unit exhausted air quantity that produces during the drying of wood is not a lot, is very large because each year of China even every day are carried out dry scalage.Therefore, reclaim and utilize drying of wood Litter just to have important social benefit and economic worth.The present invention makes full use of this situation of China; and a large amount of wood raw materials researched and analysed; filter out kind more than 40 and contain the timber and the bamboo material of extract composition with antibiont harm function; main object as the recycling of drying of wood Litter; utilize waste gas condensing unit and condensate separation purifying plant to obtain natural protective agent; and be used for the natural protection of timber and bamboo wood and goods thereof; this natural protective agent can also be medicine; chemical industry provides cheap and abundant pure natural raw material; really realized " turning waste into wealth "; and; can also recycle the heat energy that Litter carries simultaneously; reached energy savings; the purpose of protection environment can produce huge economic benefit and social benefit.
This patent is timber to be processed Litter " turn waste into wealth "; for natural drug, light industry and chemical products etc. provide abundant cheap natural material; and; can also recycle the heat energy that Litter carries simultaneously; reach the purpose of energy savings, protection environment, can produce huge economic benefit and social benefit.
Description of drawings
Fig. 1 prepares the schematic flow sheet of natural protective agent method for utilize natural timber and/or the bamboo processing Litter according to a specific embodiment of the present invention.
The specific embodiment
The invention will be further described below in conjunction with embodiment.
Embodiment 1: utilize eucalyptus drying of wood Litter to prepare natural protective agent
1) selection of wood raw material
In the world forest plants, kind surplus the xylophyta 8000 is arranged, wherein arbor accounts for kind more than 2000, but it is only hundreds of to be used for the arbor species of traditional timber property research.China xylophyta has 7500 kinds approximately, about 2500 kinds of arbor, but common with material kind surplus in the of 300 only.The extract that not all timber contains all has the function of natural protection, therefore, need study screening.
According to former study and documents and materials, analytic induction of the present invention goes out self to contain following common timber (bamboo wood) seeds with the extract composition that can give timber natural durability or antibiont harm function, as China fir, Eucalyptus, the Taiwan Japan cypress, white oak, cypress, arbor-vitae, sassafrases, agalloch eaglewood, teak, Chinese incense cedar, cloves, the green heart camphor tree in East Africa, Fokienia hodginsii, Chinese yew, Korean pine, Chinese pistache, boxwood, China tree, fir, Abelia biflora, larch, Lapland pine, pine, pinus sylvestris var. mongolica, paulownia, pencil cedar, Japanese cedar, bush, Taiwania cryptomerioides, sandalwood, ebony, Chinese toon, fragrant redwood, ginkgo, Chinese juniper, jujube tree, Chinese honey locust, camphorwood, the hardwood nanmu, black bamboo, mottled bamboo, timber varieties of trees such as mao bamboon and Cephalostachyum pergracile.
Select for the timber varieties of trees described in this patent, not sense strictoly to remove to buy or gather specific wood raw material in order to wood dry waste gas, and be meant and in early-stage Study and test, select, to determine realizing utilizing natural timber bamboo processing Litter to prepare the timber varieties of trees (comprising bamboo wood) of natural protective agent.In actual production, when Gan Zao wood raw material is above-mentioned timber (bamboo wood) seeds if desired, can begin to utilize the present invention to carry out the preparation of natural protective agent.
In the present embodiment, selected China's common eucalyptus timber in south to test, with the wood raw material processing growth sheet material that 1000～1200mm * wide naturally * 30mm is thick.
2) condensation of the drying of wood and dry waste gas is collected
Utilize timber dryer that eucalyptus timber is carried out drying, 110～125 ℃ of the dry-bulb temperatures when dry, 85～95 ℃ of wet-bulb temperature, drying time 30～36h.
Waste gas outlet at timber dryer, waste gas condensation retracting device in the connection, cooling medium inlet and cooling medium outlet are equipped with in condensing unit inside, dry waste gas is discharged through the cooled waste gas of condenser outlet port after the condensation, condensed product is discharged from the product discharge pipe of condensation retracting device, obtain condensed product, can also on condensing unit, equip simultaneously and recycle the heat energy apparatus that Litter carries.
3) separation of condensate and purification
Utilizing oily-water seperating equipment that product is reclaimed in the waste gas condensation separates, remove waste water and impurity component, obtain elementary natural protective agent product, when collecting about 500 milliliters natural protective agent, stop to collect, and prepare timber or bamboo wood are carried out protective treatment.
Utilize separating purifying plant can also further separate and purify elementary natural protective agent product, with the natural protective agent and the natural industrial chemicals of the more Focus that obtains different component and different efficacies.
4) utilize natural protective agent that timber or bamboo wood are carried out protective treatment
Technology and method to timber or bamboo wood and goods thereof carry out protective treatment can be the protection processing method of multiple routines such as brushing, immersion, pressure impregnate.
Embodiment 2: utilize natural protective agent to carry out timber and bamboo wood is mould proof and blue stain bacterium performance test
Used natural protective agent is to obtain according to the 1st～3 step among the embodiment 1 in the present embodiment, and then utilizes natural protective agent that timber and bamboo wood are handled, and detects its mould proof and blue stain bacterium performance.
With reference to standard GB/T 18261-2000 " test method of mould inhibitor control timber mould and blue stain bacterium ", ((50mm * 20mm * 5mm) putting into natural protective agent floods 3min, then protective treatment sample anti-is gone mouldy and anti-blue stain look performance detects for 50mm * 20mm * 5mm) and mao bamboon bamboo wood sample with masson pine sapwood wood sample.
The evaluation criteria of mould proof and anti-blue stain bacterium effect is that to be subjected to timber mould or the metainfective killed value of blue stain bacterium with sample be evaluating basis, is divided into Pyatyi by standard: killed value is 0 to refer to that specimen surface does not have mycelia, and inside and exterior color are all normal; Killed value is that 1 finger specimen surface infects area＜1/4, and internal color is normal; Killed value is that 2 finger specimen surfaces infect area 1/4～1/2, and internal color is normal; Killed value is that 3 finger specimen surfaces infect area 1/2～3/4, or interior blue stain area＜1/10; Killed value is that 4 finger specimen surfaces infect area＞3/4, or interior blue stain area＞1/10.
Testing result is: 1) for the unseasoned timber sample, the killed value of Aspergillus, Penicillium notatum, trichoderma viride and blue stain bacterium reaches 3 or 4 grades, the wood sample after handling for natural protective agent, and its killed value is 0 or 1 grade; 2) for the bamboo wood sample that is untreated, the killed value of Aspergillus, Penicillium notatum, trichoderma viride and blue stain bacterium all is 4 grades, the bamboo wood sample after handling for natural protective agent, and its killed value is respectively 1 grade.This result shows, utilize the preparation of drying of wood Litter natural protective agent can to timber and bamboo wood prevent going mouldy and anti-blue stain look is handled, and have and well prevent going mouldy and anti-blue stain effect.
Embodiment 3: utilize China fir high temperature drying waste gas to prepare natural protective agent
Utilize timber high temperature drying (heat treatment) equipment respectively Eucalyptus and China fir to be carried out the heat treatment of steaming process timber.The main technique that high temperature drying is handled is: at first progressively heat up the drying of wood to over dry, and then be rapidly heated 160～220 ℃, about 2～6h of processing time, in the high temperature drying heat treatment process, adopt method of the present invention respectively under different temperatures and processing time condition, collect the natural protective agent that is prepared into by timber high temperature drying Litter.
Embodiment 4: utilize the dry waste gas of pine to prepare the natural protective agent of terpenoid substance
Utilize drying equipment that pine timber is carried out drying, drying process is: 100～120 ℃ of dry-bulb temperatures, 70～90 ℃ of wet-bulb temperature.Utilizing oily-water seperating equipment that product is reclaimed in the waste gas condensation separates, remove waste water and impurity component, obtain elementary natural protective agent product, when collecting about 500 milliliters natural protective agent, stop to collect, utilize then and separate purifying plant, obtain terpenoid substances such as australene, nopinene, amphene further separation and the purification of elementary natural protective agent product.Wherein, australene is a kind of natural essential oil, and special chemism is arranged, and is the raw material of artificial camphor, synthetic perfume, synthetic resin, medicine and other organic synthesis industry, can be used as the raw material of artificial camphor, borneol and lilac spices.Nopinene is mainly used in spices production, is one of important source material of synthetic nopinene resin and production vitamin E etc.Refining nopinene can be used for the allotment of daily chemical essence and is the perfuming of other industrial goods.
Claims (6)
1. the preparation method of timber and/or bamboo wood protective agent is characterized in that comprising the following steps:
(1) utilize drying equipment to carry out drying to containing at least a timber and/or bamboo wood with extract composition of timber and/or bamboo wood protective agent effect;
(2) waste gas that dry run produced is reclaimed in condensation, obtains product liquid.
2. preparation method according to claim 1 is characterized in that, also comprises:
(3) product liquid that obtains is reclaimed in condensation and carry out water-oil separating,, thereby obtain the product liquid that process is separated with removal moisture and solid impurity wherein.
3. preparation method according to claim 2 is characterized in that, also comprises:
(4) to further separating through the product liquid that separates and purifies, thereby acquisition comprises the product of described at least a extract composition with protective agent effect or has the one-component product of the extract composition of protective agent effect.
4. according to arbitrary described preparation method among the claim 1-3, it is characterized in that the timber and/or the bamboo wood that are dried in the described step (1) are selected from camphorwood, sandalwood, Japan's Chinese juniper wood, Korean pine, China fir, Japanese cedar, the America pine, Japan cypress, cdear, arbor-vitae, sandalwood, Brazil produces Gossweilerodendron balsamiferum Harms, teak, black bamboo, Eucalyptus, the Taiwan Japan cypress, white oak, cypress, sassafrases, agalloch eaglewood, Chinese incense cedar, cloves, the green heart camphor tree in East Africa, Fokienia hodginsii, Chinese yew, Chinese pistache, boxwood, China tree, fir, Abelia biflora, larch, Lapland pine, pine, pinus sylvestris var. mongolica, paulownia, pencil cedar, Japanese cedar, bush, Taiwania cryptomerioides, ebony, Chinese toon, fragrant redwood, ginkgo, Chinese juniper, jujube tree, Chinese honey locust, the hardwood nanmu, mottled bamboo, in mao bamboon and the Cephalostachyum pergracile one or more.
5. according to arbitrary described preparation method among the claim 1-4 prepared timber and/or bamboo wood protective agent.
6. the means of defence of timber and/or bamboo wood is characterized in that, uses timber according to claim 5 and/or bamboo wood protective agent to adopt the protection processing method that brushing, immersion or pressure impregnate that timber or bamboo wood are carried out protective treatment.
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| CN102812970A (en) * | 2012-08-29 | 2012-12-12 | 彭万喜 | Preparation method of natural antibacterial insect repellent |
| CN105835186A (en) * | 2016-05-23 | 2016-08-10 | 抚松金隆木业集团有限公司 | Wood penetration coloring method |
| CN107825549A (en) * | 2017-11-03 | 2018-03-23 | 浙江亮月板业有限公司 | A kind of manufacture craft that bamboo vinegar mildew-retarding liquid is prepared during bamboo wood material is dried |
| CN107866886A (en) * | 2016-09-27 | 2018-04-03 | 涟源市绿昊农业科技有限公司 | A kind of processing method of camphor tree sawing material |
| CN111907878A (en) * | 2015-02-24 | 2020-11-10 | 阿尔布雷克特控股有限责任公司 | Container suitable for containing fluid |
| CN113442251A (en) * | 2021-07-08 | 2021-09-28 | 浙江省林业科学研究院 | Bamboo and/or wood coloring method |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102812970A (en) * | 2012-08-29 | 2012-12-12 | 彭万喜 | Preparation method of natural antibacterial insect repellent |
| CN111907878A (en) * | 2015-02-24 | 2020-11-10 | 阿尔布雷克特控股有限责任公司 | Container suitable for containing fluid |
| CN111907878B (en) * | 2015-02-24 | 2022-12-02 | 阿尔布雷克特控股有限责任公司 | Container suitable for containing fluid |
| CN105835186A (en) * | 2016-05-23 | 2016-08-10 | 抚松金隆木业集团有限公司 | Wood penetration coloring method |
| CN105835186B (en) * | 2016-05-23 | 2017-04-05 | 抚松金隆木业集团有限公司 | A kind of timber permeates color method |
| CN107866886A (en) * | 2016-09-27 | 2018-04-03 | 涟源市绿昊农业科技有限公司 | A kind of processing method of camphor tree sawing material |
| CN107825549A (en) * | 2017-11-03 | 2018-03-23 | 浙江亮月板业有限公司 | A kind of manufacture craft that bamboo vinegar mildew-retarding liquid is prepared during bamboo wood material is dried |
| CN113442251A (en) * | 2021-07-08 | 2021-09-28 | 浙江省林业科学研究院 | Bamboo and/or wood coloring method |
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| CN101941223B (en) | 2013-11-06 |
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