CN104511953A - Pine drying method - Google Patents
Pine drying method Download PDFInfo
- Publication number
- CN104511953A CN104511953A CN201310725712.5A CN201310725712A CN104511953A CN 104511953 A CN104511953 A CN 104511953A CN 201310725712 A CN201310725712 A CN 201310725712A CN 104511953 A CN104511953 A CN 104511953A
- Authority
- CN
- China
- Prior art keywords
- pine
- drying
- moisture content
- sheet material
- kiln
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
- F26B21/06—Controlling, e.g. regulating, parameters of gas supply
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
- F26B21/06—Controlling, e.g. regulating, parameters of gas supply
- F26B21/10—Temperature; Pressure
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Drying Of Solid Materials (AREA)
- Chemical And Physical Treatments For Wood And The Like (AREA)
Abstract
The invention discloses a pine drying method, and belongs to the field of timber processing. The method comprises the following steps: selecting pine sheets with the thickness of 25-35mm and the water content of 40-45% before drying, putting the pine sheets in a kiln, stacking, using division bars between layers of the pine sheets, making a pine water content drying reference according to the dimension of the stack of the pine sheets, the flow velocity of a drying medium and the water content of the sheets, setting a wet and dry bulb temperature according to the water content drying standard, starting a system in the drying kiln to carry out automatic heating and steam injection to a preset required range, cooling the pine sheets, and discharging the cooled pine sheets from the kiln to obtain a finished product. The method allows the water content of the timber to be balanced in the drying process by adopting the pine drying reference and using automatic steam injection, prevents the deformation, cracking and bending of the sheets in the drying process, and realizes an optimal drying state through multi-time automatic steam injection, humidity elimination and adjustment.
Description
Technical field
The present invention relates to wood processing technique field, the drying means of especially a kind of pine.
Background technology
Timber must carry out pretreatment before being taken into use, and wherein, the drying of wood is an important step, is also the most key operation of first; The quality of dry mass directly has influence on the utilization rate of timber and the processing of back segment operation, directly affects the height of the final quality of woodwork.Chinese fir is south China particularly one of most important special product commerical tree species in Guangxi, and pine growth is fast, straight, the wooden exquisiteness of texture, but the moisture component of pine is large, easy to crack, causes the wood comprehensive utilization rate of pine low.Along with China carries out wildwood protected project, limit is cut down, is prohibited the prevalence cut down, and timber is very in short supply; In order to Appropriate application timber, people adopt and prevent the epidemic prevention of its desinsection the method for pine drying, prevent pine woodwork rotten and rotten, improve stability and the intensity of pine woodwork.At present time drying schedule and moisture content drying schedule are divided into drying schedule that timber uses, the drying schedule formulated according to drying time is time drying schedule, namely the time needed for whole drying is divided into several time periods, and specifies corresponding medium temperature and humidity by each time period; And at present at home, abroad, the special drying of wood for pine is not all had to set benchmark, drying means many employings kiln drying method of the pine of prior art, pile up in dry kiln by pine, repeat alternately heating furnace air and to spraying steam in kiln, and air blast makes furnace air and vapor recycle, drying is carried out to pine, owing to not grasping the optimum drying benchmark of pine material, in dry run, various data setting is unreasonable, causes timber in temperature rise period just drying, pine in dry run is finally caused easily to warp, the problem of cracking.
Summary of the invention
Technical problem to be solved by this invention is to provide the drying means of a kind of pine, and the drying means of this pine can solve the problem that pine easily warps, ftractures.
In order to solve the problem, the technical solution adopted in the present invention is: first pile up in dry kiln by pine sheet material before oven dry, the steps include:
(1) select the pine sheet material that sheet metal thickness is 25mm-50mm, moisture content is 40%-45%, put into kiln;
(2) the pine plate material lamination in kiln is stacked, use parting bead between layers, distance≤1200mm between each parting bead of same layer, every layer of parting bead from top to bottom remains on a vertical line in short transverse, and the parting bead being arranged on deal board end should flush with plate end;
(3) according to size, the flow velocity of drying medium, the moisture content formulation pine moisture content drying schedule of sheet material of pine sheet material heap, and set wet and dry bulb temperature according to this moisture content drying schedule, the system started in dry kiln carries out Automatic-heating and spray is steamed, reach setting claimed range, kiln discharge after the cooling of pine sheet material, can obtain finished product.
In technique scheme, technical scheme can also be more specifically: in described (3) step, pine drying schedule is: the wet and dry bulb initial temperature in described dry kiln is set as 50 DEG C, the final moisture content of pine sheet material is set as 8%, during heat drying, temperature rise period is set as heating up once for 7 hours, each intensification 5 degree to 8 degree, and heat drying maximum temperature is set as 75 DEG C; Pine sheet material stabilization sub stage moisture content is set as 10%, and time stabilization sub stage is set as 4 hours; The regulating time regulating moisture content is 3 hours, and pine sheet material is set as 7.5% at adjustment phase balancing moisture content.
Owing to have employed technique scheme, the present invention compared with prior art has following beneficial effect:
1, in dry run, adopt pine drying schedule of the present invention, use spray steaming automatically that timber moisture content in dry run is balanced, prevention sheet material there will be distortion, cracking and bending phenomenon and occurs in dry run, through repeatedly automatically spraying steaming, hydrofuge, is adjusted to optimum drying state.
2, due to when pine plate material lamination stacks, parting bead is used in material heap, the sheet material of adjacent two layers is made separately to form uniform steam flow circulation canal, hot and humid area is carried out on the drying medium of circulation and the surface of timber, use parting bead that material can be made to pile and keep stable in the direction of the width, timber during material is piled clamps mutually, prevents and alleviates wood-bending.
Detailed description of the invention
Below in conjunction with instantiation, the invention will be further described:
Embodiment 1:
The 105M3 holy Amway board aluminium alloy kiln that dry kiln of the present invention adopts Kaiyuan City Ao Shi drying equipment Co., Ltd to produce, 2 groups of radiators are installed in this dry kiln, 5 Fans, 2 groups of moistureproof windows, often organize moistureproof window and have 7 moistureproof windows, hydrofuge micro machine has 3 voltage 24W, moisture content wire has 3 groups, temperature sensor has 2 groups, equilibrium moisture content sensor has 2 groups, and pipeline has 3 tunnel admission pipelines, water return pipeline, steam spray pipe road, executing agency, electric steam fine adjustment valve, hydrofuge micro machine and spray to steam magnetic valve;
When will carry out drying to pine sheet material, first pine sheet material is piled up in dry kiln before baking, the steps include:
(1) select the pine sheet material that sheet metal thickness is 25mm, moisture content is 40%, put into kiln;
(2) the pine plate material lamination in kiln is stacked, use parting bead between layers, distance 600mm between each parting bead of same layer, every layer of parting bead from top to bottom remains on a vertical line in short transverse, and the parting bead being arranged on deal board end should flush with plate end;
(3) according to size, the flow velocity of drying medium, the moisture content formulation pine drying schedule of sheet material of pine sheet material heap, drying schedule setting table as table 1, and sets parameters by table 1, and then start the drying system of dry kiln, dry run is as follows:
First preheating is carried out to the pine sheet material that moisture content is 40%, steaming, not hydrofuge is not sprayed during preheating, set every 7 hours and heat up once, each intensification 5 degree, be raised to 35 DEG C, system enters the heating period, now heating system continues to heat up by setting programming rate, namely within every 7 hours, heat up once, each intensification 5 degree, until temperature reaches the dry initial temperature 50 DEG C of setting, system enters drying stage, this stage programming rate is identical with the first two stage programming rate, temperature rises to 70 DEG C, and keep this temperature 4 hours, when pine sheet material moisture content reaches setting value 10%, temperature continues to rise to 75 DEG C, and keep this temperature 96 hours, during this period, when equilibrium moisture content reaches setting value 7.5%, spray steaming will be started working, steam injection time is 3 hours, when moisture content reaches final moisture content setting value 8%, shut down, enter holding stage, be incubated 24 hours, blower fan remains in operation, moistureproof window hydrofuge, temperature is declined, temperature is down to 30 DEG C-35 DEG C, whole process terminates, pine sheet material can kiln discharge.
It is carry out in the adjustment stage that spray in dry run is steamed, the adjustment stage is the stage of keeping dry final temperature-resistant, equilibrium moisture content value is by regulating humidity to set in program, the internal stress produced when doing timber is removed in the effect in this stage, the moisture content of desiccated wood also can be made even by regulating humidity.
Embodiment 2:
The dry kiln of the present embodiment is identical with embodiment 1, when will carry out drying to pine sheet material, is first piled up in above-mentioned dry kiln by pine sheet material before baking, the steps include:
(1) select the pine sheet material that sheet metal thickness is 35mm, moisture content is 45%, put into kiln;
(2) the pine plate material lamination in kiln is stacked, use parting bead between layers, distance 1200mm between each parting bead of same layer, every layer of parting bead from top to bottom remains on a vertical line in short transverse, and the parting bead being arranged on deal board end should flush with plate end;
(3) according to size, the flow velocity of drying medium, the moisture content formulation pine drying schedule of sheet material of pine sheet material heap, drying schedule setting table as table 1, and sets parameters by table 1, and then start the drying system of dry kiln, dry run is as follows:
First preheating is carried out to the pine sheet material that moisture content is 45%, steaming, not hydrofuge is not sprayed during preheating, set every 7 hours and heat up once, each intensification 5-8 degree, be raised to 35 DEG C, system enters the heating period, now heating system continues to heat up by setting programming rate, namely within every 7 hours, heat up once, each intensification 5-8 degree, until temperature reaches the dry initial temperature 50 DEG C of setting, system enters drying stage, this stage programming rate is identical with the first two stage programming rate, temperature rises to 70 DEG C, and keep this temperature 4 hours, when pine sheet material moisture content reaches setting value 10%, temperature continues to rise to 75 DEG C, and keep this temperature 96 hours, during this period, when equilibrium moisture content reaches setting value 7.5%, spray steaming will be started working, steam injection time is 3 hours, when moisture content reaches final moisture content setting value 8%, shut down, enter holding stage, be incubated 24 hours, blower fan remains in operation, moistureproof window hydrofuge, temperature is declined, temperature is down to 30 DEG C-35 DEG C, whole process terminates, pine sheet material can kiln discharge.
It is carry out in the adjustment stage that spray in dry run is steamed, the adjustment stage is the stage of keeping dry final temperature-resistant, equilibrium moisture content value is by regulating humidity to set in program, the internal stress produced when doing timber is removed in the effect in this stage, the moisture content of desiccated wood also can be made even by regulating humidity.
Table 1:
Claims (2)
1. a drying means for pine, first piles up in dry kiln by pine sheet material before it is characterized in that oven dry, the steps include:
(1) select the pine sheet material that sheet metal thickness is 25mm-35mm, moisture content is 40%-45%, put into kiln;
(2) the pine plate material lamination in kiln is stacked, use parting bead between layers, distance≤1200mm between each parting bead of same layer, every layer of parting bead from top to bottom remains on a vertical line in short transverse, and the parting bead being arranged on deal board end should flush with plate end;
(3) according to size, the flow velocity of drying medium, the moisture content formulation pine moisture content drying schedule of sheet material of pine sheet material heap, and set wet and dry bulb temperature according to this moisture content drying schedule, the system started in dry kiln carries out Automatic-heating and spray is steamed, reach setting claimed range, kiln discharge after the cooling of pine sheet material, can obtain finished product.
2. the drying means of pine according to claim 1, it is characterized in that: in described (3) step, pine drying schedule is: the wet and dry bulb initial temperature in described dry kiln is set as 50 DEG C, the final moisture content of pine sheet material is set as 8%, during heat drying, temperature rise period is set as heating up once for 7 hours, each intensification 5 degree to 8 degree, and heat drying maximum temperature is set as 75 DEG C; Pine sheet material stabilization sub stage moisture content is set as 10%, and time stabilization sub stage is set as 4 hours; The regulating time regulating moisture content is 3 hours, and pine sheet material is set as 7.5% at adjustment phase balancing moisture content.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310725712.5A CN104511953B (en) | 2013-12-25 | 2013-12-25 | Pine drying method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310725712.5A CN104511953B (en) | 2013-12-25 | 2013-12-25 | Pine drying method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104511953A true CN104511953A (en) | 2015-04-15 |
| CN104511953B CN104511953B (en) | 2017-01-25 |
Family
ID=52788114
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310725712.5A Active CN104511953B (en) | 2013-12-25 | 2013-12-25 | Pine drying method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104511953B (en) |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105110023A (en) * | 2015-08-31 | 2015-12-02 | 北华大学 | Stacking method used in solid wood board drying |
| CN105202870A (en) * | 2015-10-26 | 2015-12-30 | 王璐 | Wood drying process |
| CN106003343A (en) * | 2016-06-27 | 2016-10-12 | 莆田市荔城区聚慧科技咨询有限公司 | Sectioned anti-cracking process for redwood through pressing |
| CN106369936A (en) * | 2016-10-31 | 2017-02-01 | 大亚(江苏)地板有限公司 | Drying method for ebony for floors |
| CN106524668A (en) * | 2016-10-31 | 2017-03-22 | 大亚(江苏)地板有限公司 | Method for drying floor oak timber |
| CN106838851A (en) * | 2016-12-25 | 2017-06-13 | 重庆义三木业有限公司 | For the cooling device of particieboard |
| CN107186850A (en) * | 2017-05-12 | 2017-09-22 | 浙江云峰莫干山地板有限公司 | A kind of preparation method of heat modification floor heating solid wooden floor board blank |
| CN107702435A (en) * | 2017-08-24 | 2018-02-16 | 阜南县大自然工艺品有限公司 | A kind of anti-moisture regain drying means of stalk |
| CN108081415A (en) * | 2017-12-25 | 2018-05-29 | 广西南宁侨盛木业有限责任公司 | A kind of drying means of artificial forest speed Feng An sawn timbers |
| CN108151446A (en) * | 2017-11-29 | 2018-06-12 | 桐乡市林达木业有限公司 | A kind of fence board rapid production process |
| CN108214846A (en) * | 2017-11-29 | 2018-06-29 | 桐乡市林达木业有限公司 | A kind of fence board craft |
| CN108247798A (en) * | 2017-11-29 | 2018-07-06 | 桐乡市林达木业有限公司 | A kind of fence board production technology |
| CN108582359A (en) * | 2018-05-04 | 2018-09-28 | 安吉席丫丫竹木有限公司 | The Vermins-proof mildew-proof processing method of bamboo plate |
| CN112985046A (en) * | 2021-02-04 | 2021-06-18 | 鹤山市雪尔达冷冻设备有限公司 | Heat pump drying device and lost foam drying method based on device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1380528A (en) * | 2001-04-12 | 2002-11-20 | 厦门涌泉科技发展股份有限公司 | Degreasning drying method of masson pine plate and squared timber |
| CN102538437A (en) * | 2012-01-17 | 2012-07-04 | 北京林业大学 | Wood drying method |
| JP2013177999A (en) * | 2012-02-28 | 2013-09-09 | Okayama Prefecture | Timber drying method and drying device for timber |
-
2013
- 2013-12-25 CN CN201310725712.5A patent/CN104511953B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1380528A (en) * | 2001-04-12 | 2002-11-20 | 厦门涌泉科技发展股份有限公司 | Degreasning drying method of masson pine plate and squared timber |
| CN102538437A (en) * | 2012-01-17 | 2012-07-04 | 北京林业大学 | Wood drying method |
| JP2013177999A (en) * | 2012-02-28 | 2013-09-09 | Okayama Prefecture | Timber drying method and drying device for timber |
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105110023A (en) * | 2015-08-31 | 2015-12-02 | 北华大学 | Stacking method used in solid wood board drying |
| CN105202870A (en) * | 2015-10-26 | 2015-12-30 | 王璐 | Wood drying process |
| CN106003343A (en) * | 2016-06-27 | 2016-10-12 | 莆田市荔城区聚慧科技咨询有限公司 | Sectioned anti-cracking process for redwood through pressing |
| CN106369936A (en) * | 2016-10-31 | 2017-02-01 | 大亚(江苏)地板有限公司 | Drying method for ebony for floors |
| CN106524668A (en) * | 2016-10-31 | 2017-03-22 | 大亚(江苏)地板有限公司 | Method for drying floor oak timber |
| CN106838851B (en) * | 2016-12-25 | 2018-11-27 | 重庆义三木业有限公司 | Cooling device for particieboard |
| CN106838851A (en) * | 2016-12-25 | 2017-06-13 | 重庆义三木业有限公司 | For the cooling device of particieboard |
| CN107186850A (en) * | 2017-05-12 | 2017-09-22 | 浙江云峰莫干山地板有限公司 | A kind of preparation method of heat modification floor heating solid wooden floor board blank |
| CN107702435A (en) * | 2017-08-24 | 2018-02-16 | 阜南县大自然工艺品有限公司 | A kind of anti-moisture regain drying means of stalk |
| CN108151446A (en) * | 2017-11-29 | 2018-06-12 | 桐乡市林达木业有限公司 | A kind of fence board rapid production process |
| CN108214846A (en) * | 2017-11-29 | 2018-06-29 | 桐乡市林达木业有限公司 | A kind of fence board craft |
| CN108247798A (en) * | 2017-11-29 | 2018-07-06 | 桐乡市林达木业有限公司 | A kind of fence board production technology |
| CN108081415A (en) * | 2017-12-25 | 2018-05-29 | 广西南宁侨盛木业有限责任公司 | A kind of drying means of artificial forest speed Feng An sawn timbers |
| CN108582359A (en) * | 2018-05-04 | 2018-09-28 | 安吉席丫丫竹木有限公司 | The Vermins-proof mildew-proof processing method of bamboo plate |
| CN112985046A (en) * | 2021-02-04 | 2021-06-18 | 鹤山市雪尔达冷冻设备有限公司 | Heat pump drying device and lost foam drying method based on device |
| CN112985046B (en) * | 2021-02-04 | 2022-04-15 | 鹤山市雪尔达冷冻设备有限公司 | Heat pump drying device and lost foam drying method based on device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104511953B (en) | 2017-01-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104511953A (en) | Pine drying method | |
| CN1815115B (en) | Wood rapid-drying method | |
| CN102435046B (en) | Rapid drying method for cottonwood thick plate | |
| CN103770170B (en) | A kind of manufacture method of finger-jointed plate | |
| CN109405441B (en) | Wood drying method | |
| CN102990752B (en) | Sheet carbonizing method | |
| CN105627699B (en) | A kind of drying means and device of easy seasoned wood | |
| CN102172934B (en) | Rotary drying method for timbers | |
| CN204268849U (en) | A kind of kudzuvine root starch drying multilayer circulation intelligent temperature control baking oven | |
| CN100500401C (en) | High temperature water heat processing method for timber | |
| CN103486837B (en) | Wood veneer dryer | |
| CN106546069B (en) | A kind of timber can batch drying means | |
| CN102303340B (en) | A kind of stable type double-layer ground-heating solid wood floorboard and manufacture method thereof | |
| CN103017485A (en) | High-temperature and high-humidity rapid drying process method for wood | |
| CN104515364A (en) | China fir drying method | |
| CN107036394B (en) | A kind of vacuum drying method of nanmu plate | |
| CN203203342U (en) | Plate drying device | |
| CN106313250A (en) | Method for medium-high-temperature mild carbonization and thermal modification of broad-leaved wood for solid wood product | |
| CN108775774A (en) | A kind of spun gold nanmu hard wood which has long been buried in earth microwave-convective drying method | |
| CN105729606A (en) | Heat treatment method for decoration panel | |
| CN104764295A (en) | Quick wood drying method | |
| CN104501542A (en) | Method for rapidly drying small-size fir board strips | |
| CN107186850A (en) | A kind of preparation method of heat modification floor heating solid wooden floor board blank | |
| CN105666624A (en) | Production technology of novel rotary cutting core board and application of novel rotary cutting core board prepared through production technology | |
| CN104626313A (en) | Solid wood composite door anti-deformation processing method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |