SU620766A1 - Method of drying wood - Google Patents
Method of drying woodInfo
- Publication number
- SU620766A1 SU620766A1 SU681243140A SU1243140A SU620766A1 SU 620766 A1 SU620766 A1 SU 620766A1 SU 681243140 A SU681243140 A SU 681243140A SU 1243140 A SU1243140 A SU 1243140A SU 620766 A1 SU620766 A1 SU 620766A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- drying
- wood
- drying wood
- stage
- temperature
- Prior art date
Links
Landscapes
- Drying Of Solid Materials (AREA)
Description
(54) СПОСОБ СУШКИ ДРЕВЕСИНЫ(54) METHOD FOR DRYING WOOD
Изобретение касаетс деревообработки , в частности сушки древесины.The invention relates to woodworking, in particular wood drying.
Известны способы сушки древесины путем ее многоступенчатойтепловой обработки в паровых камерах, осуществл емой при 41-104 С lj .There are known methods for drying wood by means of its multistage heat treatment in steam chambers, carried out at 41-104 С lj.
Однако эти способы не позвол ют добитьс оптимальных сроков сушки и требуемого качестваее.However, these methods do not allow to achieve optimal drying times and the required quality.
Это обусловлено тем, что температура по сухомутермометру на после;дук аей ступени выше температуры предшествуквд й ступени..При этом быстро усыхают поверхностные слои древесины , rfo сравнению с внутренними, и влажность их становитс ниже точки насыщени волокна. Древесина уплотн етс , поры клеток закупориваютс ,, а это вызывает внутренние напр жени , превышающие нормативные. В результатеThis is due to the fact that the temperature of the dry-thermometer is on after the duct stage is higher than the temperature of the preceding stage. At the same time, the surface layers of the wood quickly dry out, compared to the internal ones, and their moisture content falls below the fiber saturation point. The wood is compacted, the pores of the cells are clogged, and this causes internal stresses in excess of the standard. As a result
замедл етс процесс сушки и снижаетс ее качество.the drying process is slowed down and its quality is reduced.
Целью изобретени вл етс повышение экономичности способа и .сркравдение сроков сушки. The aim of the invention is to increase the efficiency of the process and the creeping time of drying.
Это достигаетс тем, что по предложенному способу сушки древесины перед каждой ступенью тепловой обработки прогревают древесину при .уемпературе воздуха, .на превышающей температуру предшествующей ступени обработки, и при влажности, соответсвукэдей равновесной влажности древесины на этой ступениi .This is achieved by the fact that according to the proposed method of drying wood, before each stage of heat treatment, wood is heated when the air temperature exceeds the temperature of the previous stage of treatment, and at humidity, corresponding to the equilibrium moisture content of wood at this stage.
Опытную сушку сосновых черновых заготовок размером 45 х 82 х 1905 мм с начальной влажностью 56,4% и конечной 7,8% провод т в паровых камерах с принудительной циркул цией ,воздуха типа ВИАМ-П подрежиму, приг веденному в таблице. Примечание. Experimental drying of pine rough blanks with a size of 45 x 82 x 1905 mm with an initial humidity of 56.4% and a final 7.8% was carried out in steam chambers with forced circulation, air of VIAM-P type, which is shown in the table. Note.
Продолжительность .сушки однотиЬных черновых заготовок в тех же сушильных камерах при сушке по известному способу 168-240 ч, по предлагаемому способу,107 4iDuration. Drying single rough blanks in the same drying chambers when drying by a known method 168-240 h, by the proposed method, 107 4i
Применение предложенного способа сушк древесины обеспечивает по .сравнению с известным способом следующие преимущества: возможность значительного сокращени срокор сушки и значительного снижени себестоимости ее; повышение качества изделий, изготовл емых из данной древесины, вследствие отсутстви в ней внутренних напр жений , превьииающих допуст1 мые; исключение из процесса сушки у1лительной конечной обработки древейины дл .удалени упом нутых напр жений.The application of the proposed method of drying wood provides, in comparison with a known method, the following advantages: the possibility of significantly reducing the drying period and a significant reduction in its cost; improving the quality of products made from this wood due to the absence of internal stresses in it, exceeding the permissible values; exclusion from the drying process of the final final treatment of wood to remove the stresses mentioned.
При применении известного .способа эта операци занимала 8-100 ч, применение предложенного способа позвол ет сократить это врем до.1 чWhen applying the known method, this operation took 8-100 hours, the application of the proposed method allows reducing this time to 1 hour.
Продолжение табл.Continued table.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU681243140A SU620766A1 (en) | 1968-05-23 | 1968-05-23 | Method of drying wood |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU681243140A SU620766A1 (en) | 1968-05-23 | 1968-05-23 | Method of drying wood |
Publications (1)
Publication Number | Publication Date |
---|---|
SU620766A1 true SU620766A1 (en) | 1978-08-25 |
Family
ID=20442540
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU681243140A SU620766A1 (en) | 1968-05-23 | 1968-05-23 | Method of drying wood |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU620766A1 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5621983A (en) * | 1996-03-29 | 1997-04-22 | Minnesota Mining And Manufacturing Company | Apparatus and method for deckeling excess air when drying a coating on a substrate |
US5881476A (en) * | 1996-03-29 | 1999-03-16 | Minnesota Mining And Manufacturing Company | Apparatus and method for drying a coating on a substrate employing multiple drying subzones |
US5906862A (en) * | 1997-04-02 | 1999-05-25 | Minnesota Mining And Manufacturing Company | Apparatus and method for drying a coating on a substrate |
US6015593A (en) * | 1996-03-29 | 2000-01-18 | 3M Innovative Properties Company | Method for drying a coating on a substrate and reducing mottle |
-
1968
- 1968-05-23 SU SU681243140A patent/SU620766A1/en active
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5621983A (en) * | 1996-03-29 | 1997-04-22 | Minnesota Mining And Manufacturing Company | Apparatus and method for deckeling excess air when drying a coating on a substrate |
US5881476A (en) * | 1996-03-29 | 1999-03-16 | Minnesota Mining And Manufacturing Company | Apparatus and method for drying a coating on a substrate employing multiple drying subzones |
US6015593A (en) * | 1996-03-29 | 2000-01-18 | 3M Innovative Properties Company | Method for drying a coating on a substrate and reducing mottle |
US5906862A (en) * | 1997-04-02 | 1999-05-25 | Minnesota Mining And Manufacturing Company | Apparatus and method for drying a coating on a substrate |
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