CN1404974A - Method for obtaining high-temp. bamboo charcoal and fine bamboo-wax from bamboo material - Google Patents
Method for obtaining high-temp. bamboo charcoal and fine bamboo-wax from bamboo material Download PDFInfo
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- CN1404974A CN1404974A CN 01128537 CN01128537A CN1404974A CN 1404974 A CN1404974 A CN 1404974A CN 01128537 CN01128537 CN 01128537 CN 01128537 A CN01128537 A CN 01128537A CN 1404974 A CN1404974 A CN 1404974A
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Abstract
The production method of high-temp. bamboo char and refined bamboo vinegar by utilizing scraps and waste material produced by processing bamboo products includes the following four procedures: electroheating pyrogenic distillation and charring at above 800-1200 deg.C, gas phase condensation, liquid phase condensation separation and liquid phase gasification condensation and refining so as to obtain the useful resource for preparing high-temp. bamboo char and refined bamboo vinegar. Besides, it can recover the bamboo tar and bamboo gas produced by producing bamboo char.
Description
Technical field
The present invention relates to a kind of method of from bamboo wood, obtaining high temperature bamboo charcoal and refining bamboo vinegar, belong to bamboo wood deep processing field.
Background technology
Bamboo charcoal, bamboo vinegar, bamboo tar and bamboo coal gas are that we can obtain and have the bamboo product that great economy is worth in the bamboo wood deep processing; can produce the series of products in fields such as being used for agricultural, chemical industry, medical and health, environmental protection, the bamboo coal gas that produces in the process then can be directly as gaseous fuel.
But, present known bamboo charcoal burning techniques still rests on the method that adopts tradition to fire charcoal and fires bamboo charcoal, though this kind becomes the charcoal temperature low with the bamboo charcoal of earth kiln method for cooking output, have only about 400 ℃, but the bamboo charcoal quality of product is low, and can not draw efficient resources such as bamboo vinegar, in addition the production cycle also long, could produce a stove in 26 days.Therefore not only bamboo timber resource be can not fully effectively utilize, and productivity effect and contaminated environment influenced.
In sum, as seen seek a kind of scientific and reasonable bamboo charcoal production technology, improve the comprehensive utilization ratio of bamboo timber resource, reduce the environmental pollution in the process, become the important topic of bamboo timber resource deep processing.
Technology contents
Purpose of the present invention: aim to provide a kind of scientific and reasonable bamboo charcoal and bamboo vinegar production technology and equipment, can not only improve the comprehensive utilization ratio of bamboo timber resource effectively, and can also reduce in the bamboo charcoal process pollution to environment.
The present invention is realized by following technical proposals.
This method of from bamboo wood, obtaining high temperature bamboo charcoal and refining bamboo vinegar, it is characterized in that it is to separate and the refining four procedures acquisition of liquid-phase vaporization condensation through electric heating dry distillation charring, vapor condensation, liquid phase condensate: wherein said electric heating dry distillation charring is the bamboo wood charing under 800 ℃ of high temperature more than-1200 ℃ of electric heating gas retort with dried and clean; Described vapor condensation is meant that the destructive distillation flue gas realization bamboo tar in isolating board-like tar separation device that will produce in the carbonization process reclaims; It is that the later destructive distillation flue gas of oil that defocuses is obtained rough bamboo vinegar and bamboo coal gas through condensation in water-cooled destructive distillation condenser that described liquid phase condensate separates; Described liquid-phase vaporization condensation is refining to be that rough bamboo vinegar is obtained refining bamboo vinegar through condensation again by heating and gasifying in refining kettle with after filtering.
Electric heating dry distillation charring in the such scheme is to be finished by a controlled electric calorifie installation, and the structure of heating that it is formed by the resistance wire (12) that relies on refractory brick (5) between an extensible furnace internal-lining (7) of being located at the body of heater inner chamber and body of heater inner chamber comes bamboo wood is carried out destructive distillation; On body of heater (13), be provided with a blast pipe (9) that is connected with furnace internal-lining (7) cavity, make the destructive distillation flue gas that contains useful composition that produces in the retort process efflux input vapor condensation operation; Be provided with heat radiation door (10) and the electric control box (11) that communicates with blower fan outside the stove at the body of heater side, form the heating destructive distillation that heats up thus on one side, Yi Bian carry the destructive distillation flue gas; The distillation system that in case charing finishes and can in time dispel the heat.
Be used for vapor condensation can be separated bamboo tar from the destructive distillation flue gas technology in the such scheme, finish, be provided with downward-sloping multilayer at described cylinder intracoelomic cavity and separate dividing plate (15) by the tar separation device that separation cylindrical shell (16) and pedestal are formed; Be provided with a header (18) that communicates with destructive distillation flue gas source in separation cylindrical shell (16) bottom side simultaneously, be provided with for efflux mouthful (14) at the top of separating cylindrical shell (16) through the output of separation after-purification gas, in addition, be provided with an oil sump tank that communicates with cylinder lumen (17) in separation cylindrical shell bottom again; Constitute thus one can make the destructive distillation flue gas enter cylinder lumen from bottom side after, separate under dividing plate (15) effect in multilayer, make the cohesion of being obstructed of tar in the flue gas, final separate the oil sump tank (17) that following of dividing plate (15) and remittance communicate with cylinder lumen along having a down dip, enter the liquid phase condensate separator and further handle thereby make the destructive distillation flue gas that removes behind the tar efflux mouth (14) from the top.
Described liquid phase condensate separator is made up of rectifying condensation cylindrical shell (22) and pedestal, it is characterized in that the inner chamber of described rectifying condensation cylindrical shell (22) is provided with the bead tube (26) of the many tubuloses that spiral, upper/lower terminal at bead tube respectively is provided with an isolation card with holes (20) that is complementary with the rectifying mouth of pipe, is provided with a cooling water intake (25) and top cooling water outlet (21) in the cylinder lumen bottom that is isolated by upper and lower isolation card; Thereby forming one makes the destructive distillation flue gas enter after the bead tube (26) of spiral from cylindrical shell top air inlet (19), be subjected to the cooling water effect to make the bamboo vinegar steam be condensed into rough bamboo vinegar liquid, discharge from the rough bamboo vinegar outlet (24) of rectifying condensation cylindrical shell (22) bottom.
The described refining technology of obtaining refining bamboo vinegar of liquid-phase vaporization condensation that is used for, be in the bamboo vinegar refining plant of forming by refining kettle A and rectifier B, to finish, described refining kettle A is made up of kettle (28), inner bag (30) and rectifying column (33), described inner bag (30) is located at kettle (28) inner chamber, with kettle (28) that inner bag (30) combines on be provided with can be to the electric heating member (27) of inner lining heating; Simultaneously be provided with a rectifying column (33) on described kettle (28) top, it is the rectifying filter course of filter packing (32) that the inner chamber of rectifying column is provided with high temperature bamboo charcoal and pottery; The top of inner bag (30) is provided with two openings, and one of them opening is the feeding mouth (31) of plate with cover, and another opening then communicates with rectifying column through a tube connector (34); Described rectifying column B is made up of rectifying condensation cylindrical shell (22) and pedestal, be provided with the many tubulose bead tubes (26) that spiral in its described rectifying condensation tube phosphor bodies inner chamber, an isolation card with holes (20) that is complementary with the bead tube mouth of pipe is respectively established at the two ends up and down of this bead tube, and the barrel space that is isolated at upper and lower two isolation cards has a cooling water outlet (21) that is in the cold water inlet (25) in low level district and is in high-order district; Be provided with a refining bamboo vinegar outlet (36) that communicates with bead tube (26) in addition in described rectifying condensation cylindrical shell (22) bottom; Form one thus and can make rough bamboo vinegar become gaseous state, be condensed into liquid liquid-phase vaporization condensation subtractive process after purifying by gaseous state again by liquid state.
According to bamboo charcoal and the bamboo vinegar production technology that above technical scheme obtained, its advantage is to obtain 800 ℃-1200 ℃ high temperature bamboo charcoal, can reclaim bamboo tar, bamboo vinegar and the bamboo coal gas that tax is deposited in the destructive distillation flue gas simultaneously again, improves the comprehensive utilization ratio of bamboo wood; Simultaneously also shortened the bamboo charcoal production time greatly, changed 12 hours one stoves into by 26 days one stoves of earth kiln, labor productivity improves greatly; And owing to the recovery of destructive distillation flue gas, the pollution that has also alleviated environment have been realized.
Description of drawings
Accompanying drawing 1 is a process chart of the present invention;
Accompanying drawing 2 is a process equipment flow chart of the present invention;
Accompanying drawing 3 is the dry distillation carbonizing furnace structural representation;
Accompanying drawing 4 is a bamboo tar condensing process device figure;
Accompanying drawing 5 is rough bamboo vinegar and bamboo coal gas liquid phase condensate separating technology installation drawing;
Accompanying drawing 6 is refining bamboo vinegar process unit flow chart.
Among the figure in the each several part name be called: 1. electric heating destructive distillation charring process equipment 2. vapor condensation process equipments 3. liquid phase condensate separating technology equipment 4. liquid-phase vaporization condensation process equipment 5. refractory brick 6. heat-insulation layers 7. furnace internal-linings 8. bells 9. blast pipes 10. heat radiation door 11. electric control boxes 12. resistance wires 13. bodies of heater 14. efflux mouth, and 15. separate dividing plates 16. separates cylindrical shells 17. oil sump tanks 18. headers 19. air inlets 20. isolation cards 21. delivery ports 22. rectifying condensation cylindrical shells 23. bamboo coal gas outlets 24. rough bamboo vinegar outlet 25. water inlets 26. bead tubes 27. electric heating members 28. kettlies 29. rough bamboo vinegar 30. inner bags 31. feeding mouths 32. filter packings 33. rectifying columns 34. tube connectors 35. appendixs 36. refining bamboo vinegar outlets.
The specific embodiment
The present invention proposes a kind of method of obtaining high temperature bamboo charcoal and refining bamboo vinegar from bamboo wood, is the effective way that improves bamboo resource comprehensive utilization ratio and added value.
This method of obtaining high temperature bamboo charcoal and refining bamboo vinegar is finished through four procedure programs:
1, the electric heating dry distillation charring, be about to the bamboo wood of clean dried---generally can select the tailing in the present conventional bamboo product processing for use, put into the gas retort inner bag, close bell (8) then, start the power-on button in the electric control box (11), allow the interior bamboo wood of stove under anaerobic condition, heat up by the technological temperature curve of setting, carrying out along with bamboo wood carbonization process in the stove, temperature raises gradually in the stove, the induction temperature sensing instrument of body of heater is also pressed the technological temperature curve of setting and is implemented automatic and manual temperature control, when temperature is elevated to a certain bits and corresponding maintenance about 12 hours the time, then can cut off the electricity supply, and in time open heat radiation door (10), start the outer blower fan of the stove that is connected with the heat radiation door and make the inside and outside heat radiation rapidly of body of heater cooling, open bell (8) when in stove, reaching safe temperature, then can obtain the qualified high temperature bamboo charcoal of stove product.In this gas retort process, the destructive distillation flue gas of bamboo wood dry distillation charring is then sent into following second operation along the blast pipe (9) that communicates with the inner bag cavity.
2, vapor condensation, the vapor condensation operation is to be finished by the tar separation device, after the destructive distillation flue gas that produces in the bamboo wood destructive distillation is sent from gas retort by blast pipe, after entering the cylinder intracoelomic cavity from the header (18) of separation cylindrical shell (16) bottom side of tar separator, on one side along with the air-flow in the cavity moves from bottom to top, what be subjected to cylinder lumen multilayer separation dividing plate (15) simultaneously again stops that generation is turbulent, the bamboo tar vapor that contains in the flue gas condenses up and down at separation dividing plate (15) gradually and forms bamboo tar oil droplet, and then along with the increase of cohesion oil droplet splashes into separation cylindrical shell (16) funnel-form bottom, the final outside oil sump tank (17) that links to each other with this bottom that flows into along downward-sloping separation dividing plate (15); And remove all the other later destructive distillation flue gases of most of bamboo tar upwards operation discharge and send into three process by separating the effluxing of cylindrical shell top mouthful (14), carry out separating of bamboo vinegar and bamboo coal gas.
3, liquid phase condensate separates: it is to be realized by the rectifying condensing unit that liquid phase condensate separates, after the destructive distillation flue gas that is come out to remove bamboo tar by last process enters from rectifying condensation cylindrical shell (22) top air inlet, enter in the many spiral bead tubes (26) that cylindrical shell middle part two isolates between cards (20) by upper isolation card (20); Because these bead tubes (26) are all in cylindrical shell among the encirclement of cooling water, so the bamboo vinegar molecule in the destructive distillation flue gas in the bead tube promptly can be condensed into liquid bamboo vinegar, and dirty along bead tube, discharge by rough bamboo vinegar outlet (24); Another part flue gas in the destructive distillation flue gas (wherein containing bamboo coal gas) is then discharged by another bamboo coal gas outlet (23) on the rectifying condensation cylindrical shell (22).The condensation separation of finishing bamboo vinegar in the destructive distillation flue gas, bamboo coal gas thus reclaims.
4, the liquid-phase vaporization condensation is refining, and it is to be purified and two part realizations of condensation by rough bamboo vinegar gasification.It at first is the inner bag (30) of the rough bamboo vinegar that obtains in the aforementioned operation being put into refining kettle A, by relying on the heat effect of the electric heating member (27) of kettle (28) between inner bag and kettle (28), make rough bamboo vinegar (29) the liquid intensification gasification in the inner bag (30), the tube connector (34) of later rough bamboo vinegar steam by inner bag (30) top that gasify enters rectifying column (26), and after the purification filtering by high temperature bamboo charcoal in the rectifying column and ceramic packing, enter rectifying condensation cylindrical shell (22) by appendix (35), under the effect of inner bead tube (26) that is provided with of rectifying condensation cylindrical shell (22) and peripheral cooling water, purify later rough bamboo vinegar steam and be condensed into refining bamboo vinegar once more, and discharge by refining bamboo vinegar outlet.
By above-mentioned four road processing steps, not only make the bamboo wood destructive distillation become high temperature bamboo charcoal of the present invention, the useful composition in the destructive distillation flue gas that generates in the dry distillation charring is separated, obtained refining bamboo vinegar.
Claims (5)
1, a kind of method of from bamboo wood, obtaining high temperature bamboo charcoal and refining bamboo vinegar, it is characterized in that it is to separate and the refining four procedures acquisition of liquid-phase vaporization condensation through electric heating dry distillation charring, vapor condensation, liquid phase condensate: wherein said electric heating dry distillation charring is the bamboo wood charing under 800 ℃ of high temperature more than-1200 ℃ of electric heating gas retort with dried and clean; Described vapor condensation is meant that the destructive distillation flue gas realization bamboo tar in isolating board-like tar separation device that will produce in the carbonization process reclaims; It is that the later destructive distillation flue gas of oil that defocuses is obtained rough bamboo vinegar and bamboo coal gas through condensation in water-cooled destructive distillation condenser that described liquid phase condensate separates; Described liquid-phase vaporization condensation is refining to be that rough bamboo vinegar is obtained refining bamboo vinegar through condensation again by heating and gasifying in refining kettle with after filtering.
2, a kind of method of from bamboo wood, obtaining high temperature bamboo charcoal and refining bamboo vinegar according to claim 1, it is characterized in that described electric heating dry distillation charring is to be finished by a controlled electric calorifie installation, the structure of heating that it is formed by the resistance wire (12) that relies on refractory brick (5) between an extensible furnace internal-lining (7) of being located at the body of heater inner chamber and body of heater inner chamber comes bamboo wood is carried out destructive distillation; On body of heater (13), be provided with a blast pipe (9) that is connected with furnace internal-lining (7) cavity, make the destructive distillation flue gas that contains useful composition that produces in the retort process efflux input vapor condensation operation; Be provided with heat radiation door (10) and the electric control box (11) that communicates with blower fan outside the stove at the body of heater side, form the heating destructive distillation that heats up thus on one side, Yi Bian carry the destructive distillation flue gas; The distillation system that in case charing finishes and can in time dispel the heat.
3, a kind of method of from bamboo wood, obtaining high temperature bamboo charcoal and refining bamboo vinegar according to claim 1, it is characterized in that described vapor condensation can separate bamboo tar from the destructive distillation flue gas technology finishes by separating the tar separation device that cylindrical shell (16) and pedestal form, be provided with downward-sloping multilayer separation dividing plate (15) at described cylinder intracoelomic cavity; Be provided with a header (18) that communicates with destructive distillation flue gas source in separation cylindrical shell (16) bottom side simultaneously, be provided with for efflux mouthful (14) at the napex that separates cylindrical shell (16) through the output of separation after-purification gas, in addition, be provided with an oil sump tank that communicates with cylinder lumen (17) in separation cylindrical shell bottom again; Constitute thus one can make the destructive distillation flue gas enter cylinder lumen from bottom side after, separate under dividing plate (15) effect in multilayer, make the cohesion of being obstructed of tar in the flue gas, final separate the oil sump tank (17) that following remittance of dividing plate (15) communicates with cylinder lumen along having a down dip, enter the liquid phase condensate separation circuit thereby make the destructive distillation flue gas that removes behind the tar efflux mouth (14) from napex.
4, a kind of method of from bamboo wood, obtaining high temperature bamboo charcoal and refining bamboo vinegar according to claim 1, it is characterized in that described liquid phase condensate separator is made up of rectifying condensation cylindrical shell (22) and pedestal, the inner chamber of its described rectifying condensation cylindrical shell (22) is provided with the bead tube (26) of the many tubuloses that spiral, upper/lower terminal at bead tube respectively is provided with an isolation card with holes (20) that is complementary with the rectifying mouth of pipe, is provided with a cooling water intake (25) and top cooling water outlet (21) in the cylinder lumen bottom that is isolated by upper and lower isolation card; Thereby forming one makes the destructive distillation flue gas enter after the bead tube (26) of spiral from cylindrical shell top air inlet (19), be subjected to the cooling water effect to make the bamboo vinegar steam be condensed into rough bamboo vinegar liquid, then discharge from the rough bamboo vinegar outlet (24) of rectifying condensation cylindrical shell (22) bottom.
5, a kind of method of from bamboo wood, obtaining high temperature bamboo charcoal and refining bamboo vinegar according to claim 1, it is characterized in that the described refining technology of obtaining refining bamboo vinegar of liquid-phase vaporization condensation that is used for, be in the bamboo vinegar refining plant of forming by refining kettle A and rectifier B, to finish, described refining kettle A is made up of kettle (28), inner bag (30) and rectifying column (33), described inner bag (30) is located at kettle (28) inner chamber, with kettle (28) that inner bag (30) combines on be provided with can be to the electric heating member (27) of inner lining heating; Simultaneously be provided with a rectifying column (33) on described kettle (28) top, it is the rectifying filter course of filter packing (32) that the inner chamber of rectifying column is provided with high temperature bamboo charcoal and pottery; The top of inner bag (30) is provided with two openings, and one of them opening is the feeding mouth (31) of plate with cover, and another opening then communicates with rectifying column through a tube connector (34); Described rectifying column B is made up of rectifying condensation cylindrical shell (22) and pedestal, be provided with the many tubulose bead tubes (26) that spiral in its described rectifying condensation tube phosphor bodies inner chamber, an isolation card with holes (20) that is complementary with the bead tube mouth of pipe is respectively established at the two ends up and down of this bead tube, and the barrel space that is isolated at upper and lower two isolation cards has a cooling water outlet (21) that is in the cold water inlet (25) in low level district and is in high-order district; Be provided with a refining bamboo vinegar outlet (36) that communicates with bead tube (26) in addition in described rectifying condensation cylindrical shell (22) bottom; Form one thus and can make rough bamboo vinegar become gaseous state, be condensed into liquid liquid-phase vaporization condensation subtractive process after purifying by gaseous state again by liquid state.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01128537 CN1404974A (en) | 2001-08-13 | 2001-08-13 | Method for obtaining high-temp. bamboo charcoal and fine bamboo-wax from bamboo material |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 01128537 CN1404974A (en) | 2001-08-13 | 2001-08-13 | Method for obtaining high-temp. bamboo charcoal and fine bamboo-wax from bamboo material |
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| CN 01128537 Pending CN1404974A (en) | 2001-08-13 | 2001-08-13 | Method for obtaining high-temp. bamboo charcoal and fine bamboo-wax from bamboo material |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1293180C (en) * | 2003-07-14 | 2007-01-03 | 陈双贵 | Bamboo vinegar production processes and apparatus |
| CN100348682C (en) * | 2005-07-21 | 2007-11-14 | 浙江林学院 | Anti-static paint and its preparing method |
| CN100396191C (en) * | 2006-02-23 | 2008-06-25 | 浙江林学院 | Method for preparing natural bamboo charcoal vinegar feed addictive |
| CN101974401A (en) * | 2010-09-13 | 2011-02-16 | 王志勇 | Food-grade bamboo vinegar and preparation method thereof |
| TWI418510B (en) * | 2008-02-13 | 2013-12-11 | San Yi Bioindustry Co Ltd | Production method of edible carbon material and working furnace device |
| CN104999537A (en) * | 2015-07-15 | 2015-10-28 | 中南林业科技大学 | Manufacturing method of advanced wooden biological compound material |
| CN105252373A (en) * | 2015-10-21 | 2016-01-20 | 淄博大创自动化科技有限公司 | Precise bamboo rib grinding system with bamboo residue recycling device |
| CN105925296A (en) * | 2016-06-15 | 2016-09-07 | 成都中医药大学 | Device using destructive distillation to prepare bamboo juice |
| CN106390526A (en) * | 2016-11-22 | 2017-02-15 | 重庆亿豪活性炭有限责任公司 | Bamboo tar separation device |
| CN107416826A (en) * | 2017-07-18 | 2017-12-01 | 成都新柯力化工科技有限公司 | A kind of coproduction prepares activated carbon from bamboo and bamboo vinegar, the method for bamboo tar |
| CN107605110A (en) * | 2017-07-31 | 2018-01-19 | 常州杰轩纺织科技有限公司 | A kind of environment-friendly type antibiotic deodorization wallpaper |
| CN108207530A (en) * | 2018-02-11 | 2018-06-29 | 广西宜州天源绿佳农业科技有限公司 | A kind of implantation methods of Selenium-enriched radish |
| CN110202655A (en) * | 2019-07-16 | 2019-09-06 | 龙泉市众伟竹木有限公司 | A kind of moso bamboo discongests the production method of piece |
| CN112391182A (en) * | 2020-11-03 | 2021-02-23 | 福建竹海炭业有限公司 | Heat energy recycling device and process thereof |
-
2001
- 2001-08-13 CN CN 01128537 patent/CN1404974A/en active Pending
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1293180C (en) * | 2003-07-14 | 2007-01-03 | 陈双贵 | Bamboo vinegar production processes and apparatus |
| CN100348682C (en) * | 2005-07-21 | 2007-11-14 | 浙江林学院 | Anti-static paint and its preparing method |
| CN100396191C (en) * | 2006-02-23 | 2008-06-25 | 浙江林学院 | Method for preparing natural bamboo charcoal vinegar feed addictive |
| TWI418510B (en) * | 2008-02-13 | 2013-12-11 | San Yi Bioindustry Co Ltd | Production method of edible carbon material and working furnace device |
| CN101974401A (en) * | 2010-09-13 | 2011-02-16 | 王志勇 | Food-grade bamboo vinegar and preparation method thereof |
| CN104999537A (en) * | 2015-07-15 | 2015-10-28 | 中南林业科技大学 | Manufacturing method of advanced wooden biological compound material |
| CN104999537B (en) * | 2015-07-15 | 2017-10-03 | 中南林业科技大学 | A kind of manufacture method of wooden advanced biological composite wood |
| CN105252373A (en) * | 2015-10-21 | 2016-01-20 | 淄博大创自动化科技有限公司 | Precise bamboo rib grinding system with bamboo residue recycling device |
| CN105925296B (en) * | 2016-06-15 | 2019-04-23 | 成都中医药大学 | A kind of device of cracking process preparation bamboo juice |
| CN105925296A (en) * | 2016-06-15 | 2016-09-07 | 成都中医药大学 | Device using destructive distillation to prepare bamboo juice |
| CN106390526A (en) * | 2016-11-22 | 2017-02-15 | 重庆亿豪活性炭有限责任公司 | Bamboo tar separation device |
| CN107416826A (en) * | 2017-07-18 | 2017-12-01 | 成都新柯力化工科技有限公司 | A kind of coproduction prepares activated carbon from bamboo and bamboo vinegar, the method for bamboo tar |
| CN107605110A (en) * | 2017-07-31 | 2018-01-19 | 常州杰轩纺织科技有限公司 | A kind of environment-friendly type antibiotic deodorization wallpaper |
| CN108207530A (en) * | 2018-02-11 | 2018-06-29 | 广西宜州天源绿佳农业科技有限公司 | A kind of implantation methods of Selenium-enriched radish |
| CN108207530B (en) * | 2018-02-11 | 2021-04-16 | 浙江窝里宅农业发展有限公司 | Planting method of selenium-rich radishes |
| CN110202655A (en) * | 2019-07-16 | 2019-09-06 | 龙泉市众伟竹木有限公司 | A kind of moso bamboo discongests the production method of piece |
| CN112391182A (en) * | 2020-11-03 | 2021-02-23 | 福建竹海炭业有限公司 | Heat energy recycling device and process thereof |
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