CN101941223B - 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, refer to a kind of method of utilizing timber bamboo processing Litter to prepare natural protective agent.
Background technology
Timber is that a kind of human use is with a long history, widely used natural material, is also a kind of environmental protection and energy saving, the natural material liked of people extremely.Timber three major polymers: cellulose, hemicellulose and lignin, and a small amount of extract forms.though the content of timber extract is few, but its abundant species, contain polyatomic phenol according to domestic and international expert research and analysis timber extract, terpene, Resin Acid, more than the 700 kind of organic compound (Peng Wanxi such as lipid and carbohydrate, Zhu Tonglin, present Research and the trend of the .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., has important chemical industry, the value of medical and fine chemistry industry.The organic solvent lixiviates such as the timber extract can water, alcohol, benzene, ethanol, ether, also the methods such as 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, in timber actual utilizes process, because the timber extract can affect wood gluing and association with pulp bleaching, cause increase and the waste of based Wood Adhesives and paper pulp bleaching agent, therefore, the timber extract is taken as unfavorable composition or harmful components for a long time.
Along with the fast development of China's accession to the WTO and China's economy, 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 timber drying, in order to reduce Litter to the pollution of environment, the main methods such as Litter burning, biofiltration and absorption that adopt are controlled at present, but these technology and method not only need special equipment and measure, increased great amount of cost, and, be difficult to obtain valuable repayment in this process, therefore, Litter is untreated just being discharged in atmosphere all generally, not only surrounding environment polluted, and become real Litter.Therefore, to efficient control and the recovery of discarded (gas) thing of timber processing, even will discard (gas) thing " turns waste into wealth " and will produce important economic benefit and social benefit to China's wood processing industry, environmental protection and economic development.
at present, timber on market and bamboo wood protective agent (also claiming protective agent), major part is made by chemical products, larger to health and environmental hazard, although, timber and bamboo wood protective agent that many novel and environment-friendly types are also arranged, (patent application (patent) number: 200610027709.6) component used is nanosized 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, although have the function of certain environmental protection, but the chemical products that environment had harm have also been used to a certain extent, and production cost is higher.And a kind of novel wood preservative (patent application (patent) number: 200910147579.3) having adopted the 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 the raw material that uses 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 for producing the characteristics of 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, adopt condensing unit with the condensation of drying of wood Litter in timber drying, described condensed product is owing to comprising the component with protective agent effect, and it can be used as natural protective agent.Then preferably condensed product can be separated, remove waste water and impurity component and obtain natural protective agent product through separating, utilize this product to process timber and bamboo wood and reach natural protection purpose, also can further purify to this product, obtain natural protective agent and natural industrial chemicals anticorrosion, the various different efficacies such as expelling parasite is mosquito-proof, mildew-resistant.
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 produces 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, with removal moisture and solid impurity wherein, thereby obtain the product liquid that process is separated.
Further preferred, described preparation method also comprises:
(4) to further separating and purify through the product liquid that separates, 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 more specifically desinsection, antibiotic, anticorrosion, anti-oxidant, uvioresistant and/or the effect such as weather-proof.in prior art, various extract compositions and effect for timber and bamboo wood have been carried out large quantity research, for example can be referring to " present Research of timber extract and trend " (Peng Wanxi, Zhu Tonglin, present Research and the trend of the .2004. timber extracts such as Zheng Zhenzhen. the forestry science and technology exploitation, 18 (5): 6-9) and " health-care efficacy and harm (1)---the timber health-care efficacy to health of timber to health " (wangkai etc., 2006. health-care efficacy and harm (1)---the timber health-care efficacy to health of timber to health. forest product industry, 33 (1): 665-67) etc. document.Those skilled in the art can select suitable timber and bamboo wood according to actual needs.
preferably, the timber and/or the bamboo wood that are dried in 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, one or more in mao bamboon and Cephalostachyum pergracile.
In the preparation method of timber as above and/or bamboo wood protective agent, wherein: the described drying equipment of step (1) can be wood-working factory's various drying equipments used, the conventional drying equipment, baking temperature that comprises 100 ℃ of left and right of temperature is at dry (heat treatment) equipment of superhigh temperature of 150～240 ℃ of high temperature drying equipment, the temperature of 100～150 ℃, and the technique when drying process can be by normal production is carried out.
In the preparation method of timber as above and/or bamboo wood protective agent, wherein: the waste gas condensation described in step (2) reclaims the condensate recycling device that adopts and can directly join with the dry waste gas discharge pipe, cooling medium entrance 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 condensate recycling device, obtain condensed product, can also equip simultaneously on condensing unit and recycle the heat energy apparatus that Litter carries.
In the preparation method's of timber as above and/or bamboo wood protective agent step (4), those skilled in the art's separating-purifying as required go out different expectation component or components composition, and described separating-purifying can adopt commercial equipment to carry out.
The present invention also provides timber and/or the bamboo wood protective agent prepared 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 the 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 the timber prepared according to said method and/or bamboo wood protective agent to adopt the protection processing method that brushing, immersion or pressure impregnate to carry out protective treatment to timber or bamboo wood.
can produce a large amount of Litters in timber drying, and contain the abundant compound that is formed by the timber extract in Litter, as 25～30 kinds of australenes, the terpene compound such as nopinene and camphene, and formic acid, the organic acid such as acetic acid and propionic acid, formaldehyde, non-terpenes chemical composition (the 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 a kind of method of Litter recovery and separating treatment, with the discarded object in the timber process, especially refer to that the Litter that produces in 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 containing natural spices, drive the agent of (killing) worm, anticorrisive agent, dyestuff, the composition such as antioxidant and activator, not only can directly cover with paint, lacquer, colour wash, etc. at timber and bamboo material surface, reach natural protection and the decoration function of timber and bamboo wood, also can utilize this product as required separating-purifying go out different active ingredient, 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 over 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, although the unit exhausted air quantity that produces during the drying of wood is not a lot, is very large because China even carries out dry scalage each year every day.Therefore, reclaim and utilize drying of wood Litter just to have important social benefit and economic worth.the present invention takes full advantage of this situation of China, and a large amount of wood raw materials is researched and analysed, filter out timber and bamboo material that kind more than 40 contains the extract composition with antibiont harm function, main object as the recycling of drying of wood Litter, utilize waste gas condensation device 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 simultaneously the heat energy that Litter carries, reached energy savings, the purpose of protection of the 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 simultaneously the heat energy that Litter carries; reach the purpose of energy savings, protection of the 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 Wood dry waste gas thing to prepare natural protective agent
1) selection of wood raw material
In the World Forests plant, have xylophyta more than 8000 to plant, wherein arbor accounts for kind more than 2000, but only hundreds of for the arbor species of traditional timber property research.China xylophyta approximately has 7500 kinds, approximately 2500 kinds of arbors, but commonly only more than 300 plant with material.The extract that not all timber contains all has the function of natural protection, therefore, need to study screening.
research and documents and materials according to forefathers, 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, the timber varieties of trees such as mao bamboon and Cephalostachyum pergracile.
Select for the timber varieties of trees described in this patent, it not the sense stricto specific wood raw material that goes in order to wood dry waste gas to buy or gather, and refer to select in early-stage Study and test, 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, if when needing dry wood raw material to be above-mentioned timber (bamboo wood) seeds, can begin to utilize the present invention to carry out the preparation of natural protective agent.
In the present embodiment, selected the common Eucalyptus Wood of south China to test, with the wood raw material processing growth sheet material that 1000～1200mm * naturally wide * 30mm is thick.
2) condensation of the drying of wood and dry waste gas is collected
Utilize timber dryer to carry out drying to Eucalyptus Wood, 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 recovery device in connection, cooling medium entrance 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 condensate recycling device, obtain condensed product, can also equip simultaneously on condensing unit and recycle the heat energy apparatus that Litter carries.
3) separation of condensate and purification
Utilizing oily-water seperating equipment to reclaim product to waste gas condensation separates, remove waste water and impurity component, obtain elementary natural protective agent product, when the natural protective agent of collecting approximately 500 milliliters, stop collecting, and prepare timber or bamboo wood are carried out protective treatment.
Utilize the separating-purifying device further to separate and to purify elementary natural protective agent product, with natural protective agent and the natural industrial chemicals of the more Focus that obtains different component and different efficacies.
4) utilize natural protective agent to carry out protective treatment to timber or bamboo wood
Technology and method to timber or bamboo wood and goods thereof carry out protective treatment can be the protection processing method of the 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 change bacterium performance test
In the present embodiment, natural protective agent used is to obtain according to the 1st～3 step in embodiment 1, and then utilizes natural protective agent that timber and bamboo wood are processed, and detects its mould proof and blue change bacterium performance.
With reference to standard GB/T/T 18261-2000 " mould inhibitor control timber mould and the blue test method that becomes bacterium ", (50mm * 20mm * 5mm) (50mm * 20mm * 5mm) putting into natural protective agent floods 3min, then the anti-of protective treatment sample is gone mouldy and prevents that blue discoloration detects with mao bamboon bamboo wood sample with masson pine sapwood wood sample.
Mould proof and the anti-blue evaluation criteria that becomes the bacterium effect is to be subjected to timber mould or the blue metainfective killed value of bacterium that becomes as evaluating basis take sample, is divided into Pyatyi by standard: killed value be 0 finger specimen surface without mycelia, 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, Aspergillus, Penicillium notatum, trichoderma viride and the blue killed value that becomes bacterium reach 3 or 4 grades, the wood sample after processing for natural protective agent, and its killed value is 0 or 1 grade; 2) for the bamboo wood sample that is untreated, Aspergillus, Penicillium notatum, trichoderma viride and the blue killed value that becomes bacterium all are 4 grades, the bamboo wood sample after processing 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 variable color is processed, and have well anti-going mouldy and anti-blue change 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 processed is: at first progressively heat up the drying of wood to over dry, and then be rapidly heated 160～220 ℃, processing time is 2～6h approximately, 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 pine dry waste gas to prepare the natural protective agent of terpenoid substance
Utilize drying equipment to carry out drying to pine timber, drying process is: 100～120 ℃ of dry-bulb temperatures, 70～90 ℃ of wet-bulb temperature.Utilizing oily-water seperating equipment to reclaim product to waste gas condensation separates, remove waste water and impurity component, obtain elementary natural protective agent product, when the natural protective agent of collecting approximately 500 milliliters, stop collecting, then utilize the separating-purifying device that elementary natural protective agent product is further separated and purifies, obtain the terpenoid substances such as australene, nopinene, amphene.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 production of flavor, 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 (2)
1. the preparation method of a 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, the dry-bulb temperature when dry is 110-125 ° of C, and wet-bulb temperature is 85-95 ° of C;
(2) waste gas that dry run produces is reclaimed in condensation, obtains product liquid, and the heat energy apparatus that the discarded object of equipment recycling simultaneously carries on condensing unit;
(3) product liquid that obtains is reclaimed in condensation and carry out water-oil separating, with removal moisture and solid impurity wherein, thereby obtain the product liquid that process is separated;
(4) to further separating and purify through the product liquid that separates, 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;
The described timber that is dried and/or bamboo wood are selected from one or more in camphorwood, China fir, Japan cypress, Eucalyptus, cypress, sassafrases, Chinese pistache, China tree, fir, Chinese toon, ginkgo, jujube tree, Chinese honey locust, hardwood nanmu, mottled bamboo, mao bamboon and Cephalostachyum pergracile.
2. prepared timber and/or the bamboo wood protective agent of preparation method according to claim 1.
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| CN102812970A (en) * | 2012-08-29 | 2012-12-12 | 彭万喜 | Preparation method of natural antibacterial insect repellent |
| WO2016138000A1 (en) * | 2015-02-24 | 2016-09-01 | Albrecht Holdings Llc | Reconditioned or infused fluid containers and related methods |
| 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 |
| CN113442251B (en) * | 2021-07-08 | 2022-12-02 | 浙江省林业科学研究院 | Bamboo and/or bamboo method for coloring wood |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1208684A (en) * | 1998-08-24 | 1999-02-24 | 宋国才 | Method for modifying wood |
| CN101474814A (en) * | 2009-01-22 | 2009-07-08 | 陈双贵 | Technique for producing bamboo low-temperature dry distillation extract |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1296743A (en) * | 2000-05-09 | 2001-05-30 | 杨昕 | Multifunctional organic synergistic agent and its preparing process |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1208684A (en) * | 1998-08-24 | 1999-02-24 | 宋国才 | Method for modifying wood |
| CN101474814A (en) * | 2009-01-22 | 2009-07-08 | 陈双贵 | Technique for producing bamboo low-temperature dry distillation extract |
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