CN101655308A - Method for drying high-efficiency energy-saving environmental-protection wood - Google Patents
Method for drying high-efficiency energy-saving environmental-protection wood Download PDFInfo
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- CN101655308A CN101655308A CN200910176853A CN200910176853A CN101655308A CN 101655308 A CN101655308 A CN 101655308A CN 200910176853 A CN200910176853 A CN 200910176853A CN 200910176853 A CN200910176853 A CN 200910176853A CN 101655308 A CN101655308 A CN 101655308A
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Abstract
The invention relates to a method for drying a high-efficiency energy-saving environmental-protection wood, which can fully recycle thermal energy in gas discharged in the drying process mainly by utilizing the independent or combined action of a thermal energy recycling system and a dehumidifying system. The method belongs to the field of wood science and technology and comprises the following steps: additionally installing a thermal energy recycling system and a dehumidifying system on an exhaust port beside a normal drying kiln, recycling the thermal energy contained in a high-temperature high-humidity medium discharged in the drying process by utilizing the combined action of the thermal energy recycling system and the dehumidifying system, heating the dry medium, and conveying the hotdry medium into the drying kiln through a circulating system so as to obtain the high-efficiency energy-saving environmental-protection dry wood. The method has the following advantages: (1) energy saving: the energy saving rate can reach 20-40%; (2) environmental protection: the method minimizes the thermal pollution and the harmful gas pollution; (3) and the two systems are easy to install andoperate and have strong operability.
Description
Technical field
The present invention relates to a kind of method for drying wood of high-efficient energy-saving environment friendly, it mainly is the independent or synergy that utilizes heat reclaiming system and dehumidification system, can reclaim heat energy in the gas that is discharged in the dry run comparatively fully, belong to the Wood Science and Technology field.
Background technology
In the woodwork process, the drying of wood is one of key method of woodwork production, directly affects woodwork quality and cost, also is simultaneously the maximum and the most serious link of air-polluting of energy consumption.The drying of wood mainly is that extraneous heat energy, electric energy, pressure energy and the sound wave energy homenergic that provides is provided, make the water in the timber become the process that steam is discharged timber, its energy consumption is procedures maximum in the woodwork process, accounts for 40%～70% of timber processing total energy consumption greatly.The world today, the contradiction that energy day is becoming tight highlights day by day, the energy situation of China also allows of no optimist, under the overall situation of the state basic policy of in addition building a conservation-minded society, how to reduce energy consumption and air pollution problems inherent in the woodwork process, especially the energy consumption of timber drying is one of hot issue of building the economizing type timber industry, has caused showing great attention to of all circles' understanding.Through relevant document, data-searching is as Chinese patent patent 200520108455.1 " a kind of highly effective energy-conserving environmental-protecting type timber dryer ", " 200620028761.9 a kind of hot oil furnace heat supply Wood drying apparatus ", " 200320104160.8 the energy-conservation lumber kiln of binary ", " 200620084597.3 lumber kiln energy saver ", " 95239772.2 the air backheating device on the heat pump wood dryer ", " 01205666.9 a kind of lumber kiln with energy recovery function advances; exhaust apparatus ", " 97236055.7 double acting heat pump wood dryer ", " 88201739.X multipotency source combined dryer ", " 200620097608.1 heat pump; hot air combined dryer "; From the said method document, do not find akin method content.
Summary of the invention
The objective of the invention is in order to overcome above-mentioned weak point, a kind of method for drying wood of high-efficient energy-saving environment friendly is provided, it mainly is the independent or synergy that utilizes heat reclaiming system and dehumidification system, realization realizes the closed circulation of drying medium simultaneously and reduces environmental pollution the recovery of heat energy in the hot and humid drying medium of timber drying discharging and energy-efficient.
The object of the present invention is achieved like this: the method for drying wood that relates to a kind of high-efficient energy-saving environment friendly, it is to install heat reclaiming system and dehumidification system additional at conventional drying kiln exhaust gas mouth place, and utilize heat reclaiming system and dehumidification system separately or synergy, with the energy recovery that is contained in the hot and humid medium that produces in the dry run and discharge, heat dry and cold drying medium again, by closed cycle system xeothermic drying medium is transported in the dry kiln, realizes the desiccated wood of high-efficient energy-saving environment friendly.
The object of the present invention is achieved like this
The method for drying wood that relates to a kind of high-efficient energy-saving environment friendly, the sheet material or the specification (thickness * width) that at first with same seeds or the close seeds thickness of wood property are 10～100 millimeters outside dry kiln are that 50 * 50 millimeters～150 * 150 millimeters square bar stackings are on the material car, again the material car is pushed away the precalculated position that is put in the dry kiln, close the door of dry kiln then, finish the timber loading of kiln, begin sheet material or square bar are carried out drying; Utilize heating system and spray steaming system with the temperature of drying medium in 50～80 ℃ of scopes and relative humidity 96%～40%, when by seasoned wood by heat penetration after, open heat reclaiming system and dehumidification system, along with inferior heat reclaiming system and the dehumidification system of entering of gas Jie, heat in the hot and humid drying medium is reclaimed by heat reclaiming system and dehumidification system, moisture is removed by dehumidifier, drying medium becomes dry and cold gas, when entering the condenser of the heater of heat reclaiming system and dehumidification system, dry and cold gas circulation is heated, make it become xeothermic gas, get back in the dry kiln, continue to recycle as drying medium, after the relative humidity of drying medium reaches requirement, close heat reclaiming system and dehumidification system, finish energy recovery one time; In dry run,, implement the recovery of drying medium heat energy and remove contained steam, realize drying timber according to the requirement of drying process.
The invention has following advantage and effect
1. she relates to a kind of method for drying wood of high-efficient energy-saving environment friendly, and its equipment is simple, and fund input is less relatively, and the technology strong operability can realize the purpose of timber high-efficient energy-saving environment friendly drying;
2. fully reclaimed contained heat energy in the hot and humid gas that is produced in the timber drying, and, reduced the energy consumption in the timber drying, provide a kind of efficient ways for building the environmental protection and saving type drying of wood in addition from a minute utilization;
3. this method is adapted to dry various assortment, all size, the various timber of moisture content just, and adaptability is stronger;
4. can improve the quality of the drying of wood effectively, can shorten the time of the drying of wood simultaneously, improve the productivity ratio of the drying of wood.
The specific embodiment
Embodiment utilizes conventional drying kiln, heating system, spray steaming system, heat reclaiming system and dehumidification system etc. that cottonwood plank stuff is carried out drying, the cottonwood plank stuff stacking that at first with thickness is 10～50 millimeters outside dry kiln is on the material car, again the material car is pushed away the precalculated position that is put in the dry kiln, close the door of dry kiln then, finish timber loading of kiln work, begin cottonwood plank stuff is carried out drying; Utilize temperature that heating system and spray steaming system adjust drying medium in 50～80 ℃ of scopes and relative humidity 96%～40%, when by seasoned wood by heat penetration after, open heat reclaiming system and dehumidification system, along with gas medium enters heat reclaiming system and dehumidification system successively, heat in the hot and humid gas is reclaimed by heat reclaiming system and dehumidification system, moisture is removed by dehumidifier, become dry and cold gas, when entering the condenser of the heater of heat reclaiming system and dehumidification system, dry and cold gas circulation is heated, make it become xeothermic gas, get back in the dry kiln, continue to recycle as drying medium, after the relative humidity of drying medium reaches requirement, close heat reclaiming system and dehumidification system, finish energy recovery one time; In dry run,, implement the recovery of drying medium heat energy and remove contained steam, realize drying timber according to the requirement of drying process.
Claims (5)
1. the method for drying wood of a high-efficient energy-saving environment friendly, it is characterized in that: the place installs heat reclaiming system and dehumidification system additional at conventional drying kiln exhaust gas mouth, and utilize the independence or the synergy of heat reclaiming system and dehumidification system, with the energy recovery that is contained in the hot and humid medium that produces in the dry run and discharge, again with the heat energy heat cycles drying medium that reclaims, by internal circulation system with the cyclic drying medium transport of heating in dry kiln, realize the desiccated wood of high-efficient energy-saving environment friendly.
2. the method for drying wood of a kind of high-efficient energy-saving environment friendly according to claim 1 is characterized in that: at conventional drying kiln exhaust gas mouth place, increase a heat reclaiming system, the heat energy in the hot and humid medium that the recovery dry kiln is discharged.
3. the method for drying wood of a kind of high-efficient energy-saving environment friendly according to claim 1 is characterized in that: at conventional drying kiln exhaust gas mouth place, increase a dehumidification system, the heat energy in the hot and humid medium that the recovery dry kiln is discharged.
4. the method for drying wood of a kind of high-efficient energy-saving environment friendly according to claim 1, it is characterized in that: a heat reclaiming system and a dehumidification system of being increased, these two systems can independently use, and also can unite use.
5. the method for drying wood of a kind of high-efficient energy-saving environment friendly according to claim 1, it is characterized in that: at conventional drying kiln exhaust gas mouth place, increase a heat reclaiming system and a dehumidification system, the sequencing of these two systems can conversion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910176853A CN101655308A (en) | 2009-09-22 | 2009-09-22 | Method for drying high-efficiency energy-saving environmental-protection wood |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910176853A CN101655308A (en) | 2009-09-22 | 2009-09-22 | Method for drying high-efficiency energy-saving environmental-protection wood |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101655308A true CN101655308A (en) | 2010-02-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910176853A Pending CN101655308A (en) | 2009-09-22 | 2009-09-22 | Method for drying high-efficiency energy-saving environmental-protection wood |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105716373A (en) * | 2016-01-30 | 2016-06-29 | 安徽福沃德干燥设备有限公司 | Method for drying poplar in dry kiln and used dry kiln |
| CN106996682A (en) * | 2017-04-01 | 2017-08-01 | 清远市慧邦木业科技有限公司 | A kind of fast growing wood quickly drying method |
| CN108816886A (en) * | 2018-06-22 | 2018-11-16 | 灌云德尼雅木业有限公司 | A kind of drying unit |
-
2009
- 2009-09-22 CN CN200910176853A patent/CN101655308A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105716373A (en) * | 2016-01-30 | 2016-06-29 | 安徽福沃德干燥设备有限公司 | Method for drying poplar in dry kiln and used dry kiln |
| CN106996682A (en) * | 2017-04-01 | 2017-08-01 | 清远市慧邦木业科技有限公司 | A kind of fast growing wood quickly drying method |
| CN108816886A (en) * | 2018-06-22 | 2018-11-16 | 灌云德尼雅木业有限公司 | A kind of drying unit |
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Application publication date: 20100224 |