CN111730711A - Bamboo board carbonizing process and equipment thereof - Google Patents
Bamboo board carbonizing process and equipment thereof Download PDFInfo
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- CN111730711A CN111730711A CN202010670461.5A CN202010670461A CN111730711A CN 111730711 A CN111730711 A CN 111730711A CN 202010670461 A CN202010670461 A CN 202010670461A CN 111730711 A CN111730711 A CN 111730711A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27M—WORKING OF WOOD NOT PROVIDED FOR IN SUBCLASSES B27B - B27L; MANUFACTURE OF SPECIFIC WOODEN ARTICLES
- B27M1/00—Working of wood not provided for in subclasses B27B - B27L, e.g. by stretching
- B27M1/06—Working of wood not provided for in subclasses B27B - B27L, e.g. by stretching by burning or charring, e.g. cutting with hot wire
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27J—MECHANICAL WORKING OF CANE, CORK, OR SIMILAR MATERIALS
- B27J1/00—Mechanical working of cane or the like
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
- B27K3/00—Impregnating wood, e.g. impregnation pretreatment, for example puncturing; Wood impregnation aids not directly involved in the impregnation process
- B27K3/16—Inorganic impregnating agents
- B27K3/22—Compounds of zinc or copper
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
- B27K3/00—Impregnating wood, e.g. impregnation pretreatment, for example puncturing; Wood impregnation aids not directly involved in the impregnation process
- B27K3/34—Organic impregnating agents
- B27K3/36—Aliphatic compounds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
- B27K3/00—Impregnating wood, e.g. impregnation pretreatment, for example puncturing; Wood impregnation aids not directly involved in the impregnation process
- B27K3/52—Impregnating agents containing mixtures of inorganic and organic compounds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
- B27K5/00—Treating of wood not provided for in groups B27K1/00, B27K3/00
- B27K5/001—Heating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
- B27K5/00—Treating of wood not provided for in groups B27K1/00, B27K3/00
- B27K5/0085—Thermal treatments, i.e. involving chemical modification of wood at temperatures well over 100°C
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
- B27K5/00—Treating of wood not provided for in groups B27K1/00, B27K3/00
- B27K5/04—Combined bleaching or impregnating and drying of wood
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27M—WORKING OF WOOD NOT PROVIDED FOR IN SUBCLASSES B27B - B27L; MANUFACTURE OF SPECIFIC WOODEN ARTICLES
- B27M1/00—Working of wood not provided for in subclasses B27B - B27L, e.g. by stretching
- B27M1/08—Working of wood not provided for in subclasses B27B - B27L, e.g. by stretching by multi-step processes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
- B27K2240/00—Purpose of the treatment
- B27K2240/20—Removing fungi, molds or insects
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Forests & Forestry (AREA)
- Wood Science & Technology (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical And Physical Treatments For Wood And The Like (AREA)
Abstract
The invention relates to the technical field of bamboo board production, in particular to a carbonization process and equipment for a bamboo board, and the carbonization process comprises a carbonization process and carbonization equipment. According to the bamboo plate carbonizing process, the preheating box is arranged on one side of the carbonizing equipment, heat supply of the preheating box is provided by carbonization waste heat and combustion waste heat of the carbonizing equipment, preheating and drying operation of bamboo materials is achieved on the premise that energy consumption is not increased, energy consumption in the carbonizing process of the bamboo plates is saved to the maximum extent, the carbonizing process of the bamboo plates based on the carbonizing equipment is used for boiling the bamboo plates at high temperature before carbonization, insect eggs or fungi attached to the surfaces of the bamboo materials are removed, meanwhile, heating treatment is carried out before carbonization and after carbonization, the carbonizing effect of the bamboo plates is further improved, the anti-corrosion and anti-mildew properties of the bamboo plates are enhanced, and the bamboo plate carbonizing process is suitable for popularization and use.
Description
Technical Field
The invention relates to the technical field of bamboo board production, in particular to a carbonization process and carbonization equipment for a bamboo board.
Background
In most of carbonization processes of bamboo boards in the current market, drying and drying equipment used in the carbonization processes needs to be additionally provided, so that the carbonization processes and the equipment of the bamboo boards are provided for solving the problems.
Disclosure of Invention
The invention aims to provide a carbonization process and equipment of a bamboo plate, wherein a preheating box is arranged at one side of carbonization equipment, the heat supply of the preheating box is provided by carbonization waste heat and combustion waste heat of the carbonization equipment, the preheating and drying operation of the bamboo is realized on the premise of not increasing the energy consumption, and the energy consumption in the carbonization process of the bamboo plate is saved to the maximum extent.
In order to achieve the purpose, the invention provides the following technical scheme:
a carbonization process of bamboo boards comprises the following steps:
1. preparing an anticorrosive vapor water agent, wherein the anticorrosive vapor water agent comprises the following raw materials in parts by weight: 10 parts of chitosan, 26-32 parts of hydroxycarboxylic acid aqueous solution with the concentration of 4-4.5mol/L, 0.8-1.6 parts of dimethylformamide, 8-12 parts of copper chloride dihydrate, 6-8 parts of precipitated white carbon black, 1-2 parts of salicylic acid, 0.02-0.08 part of trisiloxane surfactant and 0.01-0.03 part of silane coupling agent containing sulfydryl;
2. cutting edges of bamboo, removing green and yellow, and steaming at 75-80 deg.C for 2-3 hr;
3. putting the cooked bamboo into a preheating box for preheating treatment before carbonization, wherein the preheating time is controlled to be between 1 and 2 hours;
4. putting the preheated bamboo into carbonization equipment for carbonization treatment, wherein the carbonization temperature is controlled at 150-;
5. and (4) putting the carbonized bamboo material into a preheating box again for drying treatment, and controlling the humidity of the bamboo material to be about 10 percent, namely finishing the carbonization operation of the bamboo material.
A carbonization device of bamboo plates comprises a carbonization device and a preheating box, wherein a carbonization chamber and a heat conduction chamber are sequentially arranged in the carbonization device from top to bottom, a combustion chamber is arranged on the left side of the heat conduction chamber, a combustion head is arranged on the inner wall of the left side of the combustion chamber, a communicated heat conduction pipe is arranged between the heat conduction chamber and the combustion chamber, a water pump is fixedly arranged at the top of the carbonization device, a water outlet pipe of the water pump extends into the carbonization chamber, a nozzle is arranged at the position of the water outlet pipe, a humidity relay is arranged on the left side plate of the carbonization device, a detection probe of the humidity relay is fixedly arranged on the inner wall of the carbonization chamber, a carbonization waste heat recovery pipe is arranged between the carbonization chamber and the preheating box, a dehumidifier is arranged on the carbonization waste heat recovery pipe, the combustion chamber is connected with the preheating box through a combustion waste heat recovery pipe, and, the fixed anticorrosive steam water agent case that is provided with in preheating case left side, the drinking-water pipe of water pump stretches into anticorrosive steam water agent incasement, the outlet pipe of water pump bottom stretches into preheating incasement and connects the fixed spray pipe that sets up of preheating incasement roof, the spray pipe bottom is provided with the atomizer.
Preferably, a heat receiving pipe opening of the heat conduction pipe faces the combustion head, and heat dissipation holes are formed in the end surface of the heat conduction chamber of the heat conduction pipe.
Preferably, the humidity relay is connected with the water pump through a circuit, and the humidity relay is connected with an external power supply through a circuit.
Preferably, the hydroxycarboxylic acid is any two of 2-hydroxy-1, 2, 3-hexanetricarboxylic acid, o-hydroxybenzoic acid, glycolic acid and 2-hydroxypropionic acid mixed in a weight ratio of 2: 1.
Compared with the prior art, the invention has the beneficial effects that: through set up the preheating case in carbomorphism equipment one side, the heat supply of this preheating case is provided by carbonization waste heat and the burning waste heat of carbomorphism equipment, realize preheating and drying operation to the bamboo timber under the prerequisite that does not increase the energy consumption, furthest saves the consumption of the energy at bamboo panel carbonization in-process, the carbonization technology of bamboo panel based on this carbomorphism equipment, carry out high-temperature boiling to bamboo panel before the carbonization, the worm's ovum or the fungi of attached to the bamboo timber surface has been clear away, simultaneously, before the carbonization and the carbonization after all carry out heat treatment, further promote the carbonization effect of bamboo panel, strengthen its anticorrosive mould proof characteristic, when the heating of preheating case, usable opening the water pump with anticorrosive steam water aqua suction preheating incasement, carry out the boiling treatment to it, further strengthen panel antibacterial treatment, suitable using widely.
Drawings
Fig. 1 is a schematic view of the whole structure of a bamboo board carbonizing apparatus according to the present invention.
In the figure: 1. carbonizing equipment; 2. a preheating box; 3. a carbonization chamber; 4. a combustion chamber; 5. a heat conducting chamber; 6. a heat conducting pipe; 7. a burner head; 8. a combustion waste heat recovery pipe; 9. carbonizing a waste heat recovery pipe; 10. a dehumidifier; 11. a water pump; 12. a humidity relay; 13. an anticorrosive aqueous vapor tank; 14. and (4) a water pump.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, the present invention provides a technical solution:
a carbonization process of bamboo boards comprises the following steps:
1. preparing an anticorrosive vapor water agent, wherein the anticorrosive vapor water agent comprises the following raw materials in parts by weight: 10 parts of chitosan, 26-32 parts of hydroxycarboxylic acid aqueous solution with the concentration of 4-4.5mol/L, 0.8-1.6 parts of dimethylformamide, 8-12 parts of copper chloride dihydrate, 6-8 parts of precipitated white carbon black, 1-2 parts of salicylic acid, 0.02-0.08 part of trisiloxane surfactant and 0.01-0.03 part of silane coupling agent containing sulfydryl;
2. cutting edges of bamboo, removing green and yellow, and steaming at 75-80 deg.C for 2-3 hr;
3. putting the cooked bamboo into a preheating box for preheating treatment before carbonization, wherein the preheating time is controlled to be between 1 and 2 hours;
4. putting the preheated bamboo into carbonization equipment for carbonization treatment, wherein the carbonization temperature is controlled at 150-;
5. and (4) putting the carbonized bamboo material into a preheating box again for drying treatment, and controlling the humidity of the bamboo material to be about 10 percent, namely finishing the carbonization operation of the bamboo material.
A carbonization device of bamboo board comprises a carbonization device 1 and a preheating box 2, wherein a carbonization chamber 3 and a heat conduction chamber 5 are sequentially arranged in the carbonization device 1 from top to bottom, a combustion chamber 4 is arranged at the left side of the heat conduction chamber 5, a combustion head 7 is arranged on the inner wall of the left side of the combustion chamber 4, a communicated heat conduction pipe 6 is arranged between the heat conduction chamber 5 and the combustion chamber 4, a water pump 11 is fixedly arranged at the top of the carbonization device 1, a water outlet pipe of the water pump 11 extends into the carbonization chamber 3, a nozzle is arranged at the position of the water outlet pipe, a humidity relay 12 is arranged on the left side plate of the carbonization device 1, a detection probe of the humidity relay 12 is fixedly arranged on the inner wall of the carbonization chamber 3, a carbonization waste heat recovery pipe 9 is arranged between the carbonization chamber 3 and the preheating box 2, a dehumidifier 10 is arranged on the carbonization waste heat recovery pipe 9, the combustion chamber 4 is connected with the preheating box 2, the left side of the preheating box 2 is fixedly provided with an anticorrosive steam water agent box 13, a water pumping pipe of a water pump 14 extends into the anticorrosive steam water agent box 13, a water outlet pipe at the bottom of the water pump 14 extends into the preheating box 2 and is connected with a water spraying pipe fixedly arranged on the inner top plate of the preheating box 2, and the bottom of the water spraying pipe is provided with an atomizing nozzle.
Wherein, the heat pipe connecting mouth of the heat conducting pipe 6 is opposite to the combustion head 7, and the heat conducting pipe 6 is provided with heat dissipation holes on the end surface of the heat conducting chamber 5.
Wherein, humidity relay 12 passes through circuit connection water pump 11, and humidity relay 12 passes through circuit connection external power source.
Wherein the hydroxycarboxylic acid is any two of 2-hydroxy-1, 2, 3-hexanetrioic acid, o-hydroxybenzoic acid, glycolic acid and 2-hydroxypropionic acid which are mixed according to the weight ratio of 2: 1.
The working principle is as follows: through set up the preheating case in carbomorphism equipment one side, the heat supply of this preheating case is provided by carbonization waste heat and the burning waste heat of carbomorphism equipment, realize preheating and the drying operation to the bamboo timber under the prerequisite that does not increase the energy consumption, furthest saves the consumption at bamboo panel carbonization in-process energy, the carbonization technology of bamboo panel with this carbomorphism equipment as the basis, carry out the high temperature digestion to bamboo panel before the carbonization, the worm's ovum or the fungi of attached to the bamboo timber surface has been clear away, and simultaneously, all carry out heat treatment before the carbonization and after the carbonization, further promote the carbonization effect of bamboo panel, strengthen its anticorrosive mould proof characteristic, suitable using widely.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. A carbonization process of bamboo boards is characterized in that: the method comprises the following steps:
1) preparing an anticorrosive vapor water agent, wherein the anticorrosive vapor water agent comprises the following raw materials in parts by weight: 10 parts of chitosan, 26-32 parts of hydroxycarboxylic acid aqueous solution with the concentration of 4-4.5mol/L, 0.8-1.6 parts of dimethylformamide, 8-12 parts of copper chloride dihydrate, 6-8 parts of precipitated white carbon black, 1-2 parts of salicylic acid, 0.02-0.08 part of trisiloxane surfactant and 0.01-0.03 part of silane coupling agent containing sulfydryl;
2) cutting edges of bamboo, removing green and yellow, and steaming at 75-80 deg.C for 2-3 hr;
3) putting the cooked bamboo into a preheating box for preheating treatment before carbonization, wherein the preheating time is controlled to be between 1 and 2 hours;
4) putting the preheated bamboo into carbonization equipment for carbonization treatment, wherein the carbonization temperature is controlled at 150-;
5) and (4) putting the carbonized bamboo material into a preheating box again for drying treatment, and controlling the humidity of the bamboo material to be about 10 percent, namely finishing the carbonization operation of the bamboo material.
2. The bamboo board carbonizing equipment is characterized in that: comprises a carbonization device (1) and a preheating box (2), wherein the carbonization device (1) is internally provided with a carbonization chamber (3) and a heat conduction chamber (5) from top to bottom in sequence, the left side of the heat conduction chamber (5) is provided with a combustion chamber (4), the inner wall of the left side of the combustion chamber (4) is provided with a combustion head (7), a heat conduction pipe (6) communicated with the combustion chamber (4) is arranged between the heat conduction chamber (5) and the combustion chamber (4), the top of the carbonization device (1) is fixedly provided with a water pump (11), a water outlet pipe of the water pump (11) extends into the carbonization chamber (3) and is provided with a nozzle at the position of the water outlet opening, a humidity relay (12) is arranged on the left side plate of the carbonization device (1), a detection probe of the humidity relay (12) is fixedly arranged on the inner wall of the carbonization chamber (3), a carbonization waste heat recovery pipe (9) is arranged between the carbonization, be provided with dehumidifier (10) on carbonization waste heat recovery pipe (9), preheating case (2) is connected through burning waste heat recovery pipe (8) in combustion chamber (4), fixed water pump (14) that is provided with in preheating case (2) top, fixed anticorrosive steam water agent case (13) that is provided with in preheating case (2) left side, the drinking-water pipe of water pump (14) stretches into in anticorrosive steam water agent case (13), the outlet pipe of water pump (14) bottom stretches into in preheating case (2) and connects the fixed spray pipe that sets up of preheating case (2) inner roof, the spray pipe bottom is provided with the atomizer.
3. A bamboo board carbonizing apparatus according to claim 2, characterized in that: the heat pipe (6) is provided with a heat receiving pipe opening facing the combustion head (7), and the heat pipe (6) is provided with heat dissipation holes on the end surface of the heat conduction chamber (5).
4. A bamboo board carbonizing apparatus according to claim 2, characterized in that: the humidity relay (12) is connected with the water pump (11) through a circuit, and the humidity relay (12) is connected with an external power supply through a circuit.
5. A bamboo board charring process according to claim 1, wherein: the hydroxycarboxylic acid is any two of 2-hydroxy-1, 2, 3-hexanetrioic acid, o-hydroxybenzoic acid, glycolic acid and 2-hydroxypropionic acid which are mixed according to the weight ratio of 2: 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010670461.5A CN111730711A (en) | 2020-07-13 | 2020-07-13 | Bamboo board carbonizing process and equipment thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010670461.5A CN111730711A (en) | 2020-07-13 | 2020-07-13 | Bamboo board carbonizing process and equipment thereof |
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| CN111730711A true CN111730711A (en) | 2020-10-02 |
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| CN202010670461.5A Pending CN111730711A (en) | 2020-07-13 | 2020-07-13 | Bamboo board carbonizing process and equipment thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113172713A (en) * | 2021-04-29 | 2021-07-27 | 桃江县三桥竹业有限责任公司 | Preparation method of bamboo veneer and bamboo glue composite board |
| CN117778036A (en) * | 2024-01-11 | 2024-03-29 | 国际竹藤中心 | Portable bamboo timber stoving carbomorphism integral type is equipped |
| CN117778036B (en) * | 2024-01-11 | 2024-07-09 | 国际竹藤中心 | Portable bamboo timber stoving carbomorphism integral type is equipped |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113172713A (en) * | 2021-04-29 | 2021-07-27 | 桃江县三桥竹业有限责任公司 | Preparation method of bamboo veneer and bamboo glue composite board |
| CN113172713B (en) * | 2021-04-29 | 2022-08-26 | 桃江县三桥竹业有限责任公司 | Preparation method of bamboo veneer and bamboo glue composite board |
| CN117778036A (en) * | 2024-01-11 | 2024-03-29 | 国际竹藤中心 | Portable bamboo timber stoving carbomorphism integral type is equipped |
| CN117778036B (en) * | 2024-01-11 | 2024-07-09 | 国际竹藤中心 | Portable bamboo timber stoving carbomorphism integral type is equipped |
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