CN103286834A - Integrated process for degreasing, deoiling and drying woods - Google Patents
Integrated process for degreasing, deoiling and drying woods Download PDFInfo
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- CN103286834A CN103286834A CN2013102716223A CN201310271622A CN103286834A CN 103286834 A CN103286834 A CN 103286834A CN 2013102716223 A CN2013102716223 A CN 2013102716223A CN 201310271622 A CN201310271622 A CN 201310271622A CN 103286834 A CN103286834 A CN 103286834A
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Abstract
The invention relates to an integrated process for degreasing, deoiling and drying woods. The integrated process is characterized in that two processes including a high-temperature high-pressure steaming degreasing and deoiling process and a wood vacuum drying process are finished through one set of devices. The high-temperature high-pressure steaming degreasing and deoiling process comprises the following steps of: (1) performing truck loading; (2) putting materials in to a tank; (3) starting processing; (4) heating and discharging air in a container; (5) performing steaming; (6) utilizing heat energy; (7) liquefying grease; (8) collecting the grease; and (9) performing cyclic steaming. The vacuum drying process comprises the following steps of: (1) performing process conversion; (2) balancing the air humidity in the tank; (3) uniformly heating; (4) performing vacuum drying; (5) performing cyclic drying; and (6) slowly releasing internal stress of the woods. The integrated process is simple and reasonable and high in production efficiency, and can meet requirements for energy conservation and emission reduction.
Description
Technical field
The present invention relates to method of processing wooden piece, refer in particular to a kind of timber degreasing, de-oiling, drying integrated process.
Background technology
In recent years, along with improving constantly and the raising of people's living standard of economic level, people to the requirement of furniture from simple practicality, be designed into requirements such as technology, health, environmental protection widely, and the base material of furniture is the most basic factor, be the various manufactured goods of base material with the artificial board, because the shortcomings such as defective of its feature of environmental protection, economy and non-natural prods are replaced by the natural timber product gradually.
The natural timber product more and more is subjected to consumer's favor; yet the grease of natural timber self; moisture content; impurity; as not removing; in the manufactured goods use; can slowly leach the material table; the various coating of brushing material table are decomposed; peel off; thereby make the material epoxyization, influence the service life of timber, lose its beautiful natural true qualities; fat in the timber (resin acid); oil (terpenes) is as the natural material that exists in the timber; if can extract; collect; refine; environment had both been protected in retrofit, can increase income again; and some famous and precious material is difficult to processing, thereby it better is not utilized.
Consult technical literature, investigate the production technology of the degreasing of timber de-oiling now, drying, have following several:
1, chemical agent degreasing method (alkali lye saponification method, alkaline soak timber).
2, solvent extraction (solvent extraction degreasing, low temperature azeotropic drying.Only limit to the laboratory test report).
3, catalyst polymerization (boron trifluoride method.Only limit to the laboratory test report).
4, solvent high temperature drying method (ether extraction process).
5, high frequency vacuum drying method (microwave heating method).
6, naturally the volatilization, low-temperature bake seasoning (traditional drying method).
More than in six kinds of methods, all have a very big drawback in being applied to produce.
Its drawback is as follows:
1, produces a large amount of contaminant water, the gas of pollution, discarded wooden slag;
2, consume medicament, industrial chemicals, and expense cost is too high;
3, consumed time is grown (7-15 days) in the production process;
4, the grease in the waste timber is too much.
Summary of the invention
The objective of the invention is to be improved and innovate at the shortcoming that exists in the background technology and problem, a kind of timber degreasing, de-oiling, drying integrated process is provided.
The present invention includes the degreasing of HTHP decatize, de-oiling technology and vacuum drying of wood technology, two kinds of technologies are finished by a covering device:
Wherein, HTHP decatize degreasing, de-oiling processing step comprise:
1), entrucking: timber semi-finished product and timber rim charge are piled up on the rail mounted charging carriage;
2), material is gone into jar: the rail mounted charging carriage is pushed in the timber degreasing de-oiling drying receptacle jar, close a jar door;
3), begin processing: open automaton and make package unit enter duty, open biological wooden slag fuel boiler carrying vapour superheater superheated steam is delivered in the timber degreasing de-oiling drying receptacle jar;
4), air in intensification and the amount discharge container: open sub-cylinder and automatic steam distribution valve gear intensification gas and steam timber, open the exhaust-valve of timber degreasing de-oiling drying receptacle tank top with exhaust, the drain valve of its bottom is hydrophobic automatically, discharge condensed water, treat to close when temperature reaches more than 96 degrees centigrade in the timber degreasing de-oiling drying receptacle jar exhaust-valve;
5), gas steams: treat that the temperature in the timber degreasing de-oiling drying receptacle jar reaches 140-150 degree centigrade, when pressure reaches 0.4-0.6Mp, the automaton control system continues gas steamed 15-30 minute, closed biological wooden slag fuel boiler carrying vapour superheater, kept 10-20 minute;
6), heat energy utilization: open the automatic gas-liquid distributing valve, discharge the mist in the timber degreasing de-oiling drying receptacle jar, it is delivered to residual heat using device, the heat energy that obtains is transported to the dry maintenance of timber slowly-releasing room, and the Oil, Water, Gas body mixture after the processing is transported to grease condensation liquefaction device;
7), grease liquefaction: grease condensation liquefaction device carries out the grease condensation liquefaction to the Oil, Water, Gas body mixture after handling, and the grease after the liquefaction is transported to grease, water separation device;
8), grease is collected: grease, water separation device separate grease and moisture, and grease is delivered to grease and collects storing device for storing, and moisture is delivered to the water circulation use device;
9), circulating air steams: the input superheated steam to timber degreasing de-oiling drying receptacle jar, reach the time of program setting after, system changes next time that gas steams over to, circulation 4-8 step after degreasing de-oiling 5-10 time, changes the vacuum drying stage over to;
Wherein, the vacuum drying process step comprises:
1), technology conversion: after timber degreasing de-oiling technology is finished, automaton control sub-cylinder and automatic steam distribution valve gear are closed, kept 10-20 minute, open vacuum plant again, make the pressure in the timber degreasing de-oiling drying receptacle jar 15 be reduced to-below the 0.02MPa, keep 15-30 minute;
2), air humidity in the compensator: after temperature progressively is reduced to below 55 degrees centigrade in jar, close vacuum plant, kept 5-10 minute, open the damp-heat air bascule again, the input overfire air makes that the pressure in the timber degreasing de-oiling drying receptacle jar rises to atmospheric pressure;
3), evenly heating: open finned steam pipe coil heat blower and jar interior hot-air cyclone, evenly heated substrate;
4), vacuum drying: after temperature reaches more than 80 degrees centigrade in jar, close the damp-heat air bascule, and unlatching exhaust-valve exhaust, keep after 15-35 minute, close exhaust-valve, open vacuum plant again, make pressure in the container tank be reduced to-below the 0.02MPa, kept 15-30 minute, and finished a vacuum drying;
5), cyclic drying: as above step cycle 2-4 step, dry 8-12 time, last dry the vacuum drying time lengthening 10-20 of step 4 minute;
6), the timber slowly-releasing is put internal stress: close said apparatus, dried timber is transported to the dry maintenance of timber slowly-releasing room 12, place 20-48 hour to discharge internal stress.
The present invention has the following advantages and beneficial effect:
1, the present invention has just realized timber degreasing de-oiling and dry two kinds of technologies by a covering device, compact conformation production is reasonable, and when carrying out drying again according to the timber after the operation degreasing de-oiling of the present invention, improved dry efficient greatly, made the moisture content of timber be low to moderate 10%;
2, reclaim wood oil, increase income;
3, the production time is short;
4, not factory effluent, waste residue, waste gas;
5, humidity ratio in the controlled container made jar reduces the timber longitudinal crack, improves material quality;
6, the timber after degreasing, the de-oiling is indeformable, can keep natural colored, improves product specification;
7, high temperature is killed fungi, sick worm, prolongs timber service life.
Description of drawings
Fig. 1 is the connection diagram of equipment of the present invention.
Among the figure: 1, vacuum plant (be installed in series form by Roots vaccum pump and centrifugal vacuum machine), 2, intuition electric contact type temperature sensor, 3, the electric contact type vacuum pressure sensor, 4, the steam pressure safety valve, 5, the humidity regulation valve, 6, finned steam pipe coil heat blower, 7, the damp-heat air bascule, 8, automatic vapour-liquid distributing valve, 9, sub-cylinder and automatic steam distribution valve gear, 10, biological wooden slag fuel boiler carrying vapour superheater (LSSW 1-0.7Mp-M), 11, residual heat using device, 12, the dry maintenance of timber slowly-releasing room, 13, grease condensation liquefaction device, 14, grease, water separation device, 15, timber degreasing de-oiling drying receptacle jar, 16, the rail mounted charging carriage, 17, hot-air cyclone in jar, 18, automaton, 19, grease is collected storage device, 20, the water circulation use device.
More than 20 kinds of parts be combined into timber de-oiling, degreasing, drying and wood oil retracting device assembly, different types of timber adopts various different technical parameters, can remove oil, the fat in variety classes, the model timber and finish dry work in 24 hours to 72 hours.
The specific embodiment
Embodiment:
Selection: southern masson pine, thickness 20mm
The HTHP decatize degreasing of pine, de-oiling processing step comprise:
1), entrucking: timber semi-finished product and timber rim charge are piled up on the rail mounted charging carriage 16;
2), material is gone into jar: rail mounted charging carriage 16 is pushed in the timber degreasing de-oiling drying receptacle jar 15, close a jar door;
3), start working: open automaton 18 and make package unit enter duty, open biological wooden slag fuel boiler carrying vapour superheater 10 superheated steam is delivered in the timber degreasing de-oiling drying receptacle jar 15;
4), air in intensification and the amount discharge container: open sub-cylinder and automatic steam distribution valve gear 9 intensification steamed woods, open the exhaust-valve at timber degreasing de-oiling drying receptacle jar 15 tops with exhaust, the drain valve of its bottom is hydrophobic automatically, discharge condensed water, treat to close when temperature reaches more than 96 degrees centigrade in the timber degreasing de-oiling drying receptacle jar 15 exhaust-valve;
5), decatize: treat that the temperature in the timber degreasing de-oiling drying receptacle jar 15 reaches 150 degrees centigrade, when pressure reaches 0.5Mp, automaton 18 control systems continued decatize 20 minutes, closed biological wooden slag fuel boiler carrying vapour superheater 10, kept 20 minutes;
6), heat energy utilization: open automatic gas-liquid distributing valve 8, discharge the mist in the timber degreasing de-oiling drying receptacle jar 15, it is delivered to residual heat using device 11, the heat energy that obtains is delivered to the dry maintenance of timber slowly-releasing room 12, and the Oil, Water, Gas body mixture after the processing is delivered to grease condensation liquefaction device 13;
7), grease liquefaction: oil, water, gas mixture after 13 pairs of processing of grease condensation liquefaction device, carry out the grease condensation liquefaction, the grease after the liquefaction is transported to grease, water separation device 14;
8), grease is collected: grease, water separation device 14 separate grease and moisture, and grease is delivered to grease and collects storage device 19 storages, and moisture is delivered to water circulation use device 20;
9), circulating air steams: the input superheated steam to timber degreasing de-oiling drying receptacle jar 15, reach the 40 minutes time of program setting after, system changes decatize next time over to, circulation 4-8 step after the degreasing de-oiling 8 times, changes the vacuum drying stage over to;
The vacuum drying process step of pine comprises:
1), technology conversion: after degreasing pinewoods de-oiling work is finished, automaton 18 control sub-cylinders and automatic steam distribution valve gear 9 are closed, kept 10 minutes, open vacuum plant 1 again, make the pressure in the timber degreasing de-oiling drying receptacle jar 15 be reduced to-below the 0.02MPa, keep 15 minutes;
2), air humidity in the equalizing reservoir jar 15: after temperature progressively is reduced to below 55 degrees centigrade in jar, close vacuum plant 1, kept 10 minutes, open damp-heat air bascule 7 again, the input overfire air makes that the pressure in the timber degreasing de-oiling drying receptacle jar 15 rises to atmospheric pressure;
3), evenly heating: open finned steam pipe coil heat blower 6 and jar interior hot-air cyclone 17, evenly heated substrate;
4), vacuum drying: after temperature reaches more than 80 degrees centigrade in the container tank 15, close damp-heat air bascule 7, and unlatching exhaust-valve exhaust, keep after 20 minutes, close exhaust-valve, open vacuum plant 1 again, make pressure in the container tank 15 be reduced to-below the 0.02MPa, kept 20 minutes, and finished a vacuum drying;
5), cyclic drying: as above step cycle 2-4 step, work last dry job step 4 vacuum drying time lengthening 10 minutes 12 times;
6), timber slowly discharges internal stress: close said apparatus, dried timber is transported to the dry maintenance of timber slowly-releasing room 12, place 24 hours to discharge internal stress.
Operation principle:
The degreasing of HTHP decatize, de-oiling technological principle; Superheated steam is steamed wood in anaerobic environment, makes resin, wood oil fast liquefying, the vaporization of timber inside, overflows from microchannel between wood cell;
The vacuum drying of wood technological principle; Utilization water when the high vacuum environment gets final product the principle of explosive evaporation in lower temperature, after by superheated steam and hot air generator the timber in the closed container being heated up, open vacuum plant, impel the timber internal moisture to vaporize fast, overflow fast from microchannel between wood cell and reach quick-drying purpose.
The dry finished product detection of pine and base material contrast:
The moisture content 45% of style before reaction is disposed, fat content is 12%, and back finished product moisture content 10%, fat content 2% are disposed in reaction, appearance colourity changes little, do not have crooked, cracking, cut base material after the brushing paint drying, 3mm in the coating infiltration base material, inside does not observe cracking, pine manufactured goods after reaction is disposed, bright in colour, smooth, smooth, can't smell the oil gas flavor.
Process summary:
Time, the degreasing pinewoods de-oiling is dry disposes 48 hours, can drop into down the step and produce, and compares with other method, saves time about 10 days;
The cost analysis of deal board disposing technique;
Every cubic metre of sheet material, consuming electric power 42KW time * 1 yuan=42 yuan;
Expend the energy, 40 kilograms * 0.2 yuan=8 yuan of wooden slag, sawdust ashes;
The loading and unloading dolly manually press 20 yuan of 1m3 base material reaction disposal one time;
Income, 6 kilograms * 20 yuan=120 yuan/cube of pine wood oils;
Conclusion, reaction is disposed camphorwood and is increased income 50 yuan for every cubic metre; Do not compare other method cost
Other timber is looked into camphorwood
Beech, pinus sylvestris var. mongolica, China fir, Chinese chestnut wood, the difference according to base material is disposed in reaction such as birch, poplar, maple, oak, selecting different temperature, time to dispose with other de-oiling degreasning drying method compares, saved time cost greatly, increase wood oil income, every cubic metre of timber are increased income considerable.
Attached technology:
After the vacuum drying, add protective agent when vacuum state, anticorrisive agent infiltrates in timber interior detail intercellular space and the microchannel, can obtain the special type protection timber of different purposes.
When vacuum state, add the high hardness wear-resisting resina and infiltrate in timber interior detail intercellular space and the microchannel the high-grade timber-work of the grain of wood that can be maintained.
Embodiment of the present invention only is the description that preferred embodiment of the present invention is carried out; be not that design of the present invention and scope are limited; under the prerequisite that does not break away from design philosophy of the present invention; engineers and technicians make technical scheme of the present invention in this area various modification and improvement; all should fall into protection scope of the present invention; the technology contents that the present invention asks for protection all is documented in claims.
Claims (1)
1. a timber degreasing, de-oiling, drying integrated process is characterized in that comprising the degreasing of HTHP decatize, de-oiling technology and vacuum drying of wood technology, and two kinds of technologies are finished by a covering device:
Wherein, HTHP decatize degreasing, de-oiling processing step comprise:
1), entrucking: timber semi-finished product and timber rim charge are piled up on the rail mounted charging carriage (16);
2), material is gone into jar: rail mounted charging carriage (16) is pushed in the timber degreasing de-oiling drying receptacle jar (15), close a jar door;
3), begin processing: open automaton (18) and make package unit enter duty, open biological wooden slag fuel boiler carrying vapour superheater (10) superheated steam is delivered in the timber degreasing de-oiling drying receptacle jar (15);
4), air in intensification and the amount discharge container: open sub-cylinder and automatic steam distribution valve gear (9) intensification gas and steam timber, open the exhaust-valve at timber degreasing de-oiling drying receptacle jar (15) top with exhaust, the drain valve of its bottom is hydrophobic automatically, discharge condensed water, treat to close when the interior temperature of timber degreasing de-oiling drying receptacle jar (15) reaches more than 96 degrees centigrade exhaust-valve;
5), gas steams: treat that the temperature in the timber degreasing de-oiling drying receptacle jar (15) reaches 140-150 degree centigrade, when pressure reaches 0.4-0.6Mp, automaton (18) control system continues gas and steamed 15-30 minute, close biological wooden slag fuel boiler carrying vapour superheater (10), kept 10-20 minute;
6), heat energy utilization: open automatic gas-liquid distributing valve (8), discharge the mist in the timber degreasing de-oiling drying receptacle jar (15), it is delivered to residual heat using device (11), the heat energy that obtains is transported to the dry maintenance room (12) of timber slowly-releasing, and the Oil, Water, Gas body mixture after the processing is transported to grease condensation liquefaction device (13);
7), grease liquefaction: grease condensation liquefaction device (13) carries out the grease condensation liquefaction to the Oil, Water, Gas body mixture after handling, and the grease after the liquefaction is transported to grease, water separation device (14);
8), grease is collected: grease, water separation device (14) separate grease and moisture, and grease is delivered to grease and collects storage device (19) storage, and moisture is delivered to water circulation use device (20);
9), circulating air steams: the input superheated steam to timber degreasing de-oiling drying receptacle jar (15), reach the time of program setting after, system changes next time that gas steams over to, circulation 4-8 step after degreasing de-oiling 5-10 time, changes the vacuum drying stage over to;
Wherein, the vacuum drying process step comprises:
1), technology conversion: after timber degreasing de-oiling technology is finished, automaton (18) control sub-cylinder and automatic steam distribution valve gear (9) are closed, kept 10-20 minute, open vacuum plant (1) again, make the pressure in the timber degreasing de-oiling drying receptacle jar (15) be reduced to-below the 0.02MPa, keep 15-30 minute;
2), air humidity in the compensator: after temperature progressively is reduced to below 55 degrees centigrade in jar, close vacuum plant (1), kept 5-10 minute, open damp-heat air bascule (7) again, the input overfire air makes that the pressure in the timber degreasing de-oiling drying receptacle jar (15) rises to atmospheric pressure;
3), evenly heating: open finned steam pipe coil heat blower (6) and jar interior hot-air cyclone (17), evenly heated substrate;
4), vacuum drying: after temperature reaches more than 80 degrees centigrade in jar, close damp-heat air bascule (7), and unlatching exhaust-valve exhaust, keep after 15-35 minute, close exhaust-valve, open vacuum plant (1) again, make pressure in the container tank be reduced to-below the 0.02MPa, kept 15-30 minute, and finished a vacuum drying;
5), cyclic drying: as above step cycle 2-4 step, dry 8-12 time, last dry the vacuum drying time lengthening 10-20 of step 4 minute;
6), the timber slowly-releasing is put internal stress: close said apparatus, dried timber is transported to the dry maintenance room (12) of timber slowly-releasing, place 20-48 hour to discharge internal stress.
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| CN201310271622.3A CN103286834B (en) | 2013-07-02 | 2013-07-02 | Timber degreasing, de-oiling, drying integrated process |
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Cited By (16)
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| CN104385406A (en) * | 2014-09-30 | 2015-03-04 | 中国林业科学研究院木材工业研究所 | Deep degreasing method for timber through vacuum heat treatment |
| CN104895351A (en) * | 2015-06-08 | 2015-09-09 | 北京陆桥商检新技术公司 | Wood fumigation closed chamber |
| CN105235040A (en) * | 2015-10-25 | 2016-01-13 | 中国林业科学研究院木材工业研究所 | Processing method of solid wood floor blanks used for floor heating |
| CN106568336A (en) * | 2016-08-31 | 2017-04-19 | 安吉永鼎家具有限公司 | Circulation energy-saving heating system for bamboo and wood product production line |
| CN107062809A (en) * | 2017-06-15 | 2017-08-18 | 浙江润格木业科技有限公司 | A kind of drying means of timber |
| CN107225639A (en) * | 2017-06-02 | 2017-10-03 | 安徽宏润工艺品有限公司 | A kind of mildrew resistant finish method of wooden boards |
| CN107449224A (en) * | 2017-07-28 | 2017-12-08 | 阜南县腾博工艺品有限公司 | A kind of drying of wood processing method |
| CN107599091A (en) * | 2017-09-12 | 2018-01-19 | 阜南县创发工艺品有限公司 | A kind of deoiling method of willow |
| 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 |
| CN108638257A (en) * | 2018-05-29 | 2018-10-12 | 安吉森虎家具有限公司 | A kind of bamboo wood furniture production oil remover |
| CN109049201A (en) * | 2018-10-08 | 2018-12-21 | 丰胜（广州）建材有限公司 | A kind of open air material deoiling treatment method and its method for anticorrosion treatment |
| CN109333687A (en) * | 2018-11-23 | 2019-02-15 | 海麟文博（厦门）文物预防性保护技术有限公司 | A kind of wooden cultural relic clone method |
| CN109676739A (en) * | 2019-01-21 | 2019-04-26 | 余姚市荣大塑业有限公司 | A kind of surface frosted treatment process of safety-type outdoor desk-chair |
| CN110076868A (en) * | 2019-05-29 | 2019-08-02 | 南京林业大学 | A kind of timber, bamboo wood heat treatment-mould proof modified synergic method |
| CN113442248A (en) * | 2021-06-04 | 2021-09-28 | 广州市跃谋建筑咨询有限公司 | Gum dipping paper material composite board poplar skin batch processing device |
| CN115889319A (en) * | 2022-12-21 | 2023-04-04 | 立邦涂料（重庆）化工有限公司 | Degreasing equipment and degreasing method thereof before coating of plates |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104385406A (en) * | 2014-09-30 | 2015-03-04 | 中国林业科学研究院木材工业研究所 | Deep degreasing method for timber through vacuum heat treatment |
| CN104895351A (en) * | 2015-06-08 | 2015-09-09 | 北京陆桥商检新技术公司 | Wood fumigation closed chamber |
| CN104895351B (en) * | 2015-06-08 | 2017-04-26 | 北京陆桥商检新技术公司 | Wood fumigation closed chamber |
| CN105235040A (en) * | 2015-10-25 | 2016-01-13 | 中国林业科学研究院木材工业研究所 | Processing method of solid wood floor blanks used for floor heating |
| CN106568336A (en) * | 2016-08-31 | 2017-04-19 | 安吉永鼎家具有限公司 | Circulation energy-saving heating system for bamboo and wood product production line |
| CN106568336B (en) * | 2016-08-31 | 2018-10-26 | 安吉永鼎家具有限公司 | A kind of bamboo and wood products' production line circulating energy-saving heating system |
| 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 |
| CN107225639A (en) * | 2017-06-02 | 2017-10-03 | 安徽宏润工艺品有限公司 | A kind of mildrew resistant finish method of wooden boards |
| CN107062809B (en) * | 2017-06-15 | 2019-05-24 | 浙江润格木业科技有限公司 | A kind of drying means of timber |
| CN107062809A (en) * | 2017-06-15 | 2017-08-18 | 浙江润格木业科技有限公司 | A kind of drying means of timber |
| CN107449224A (en) * | 2017-07-28 | 2017-12-08 | 阜南县腾博工艺品有限公司 | A kind of drying of wood processing method |
| CN107599091A (en) * | 2017-09-12 | 2018-01-19 | 阜南县创发工艺品有限公司 | A kind of deoiling method of willow |
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