CN105500485A - Method for carbonizing bamboo material through compound molten salt - Google Patents
Method for carbonizing bamboo material through compound molten salt Download PDFInfo
- Publication number
- CN105500485A CN105500485A CN201510857856.5A CN201510857856A CN105500485A CN 105500485 A CN105500485 A CN 105500485A CN 201510857856 A CN201510857856 A CN 201510857856A CN 105500485 A CN105500485 A CN 105500485A
- Authority
- CN
- China
- Prior art keywords
- salt
- charing
- bamboo
- bamboo wood
- complex salt
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- 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.)
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Classifications
-
- 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
- B27K9/00—Chemical or physical treatment of reed, straw, or similar material
- B27K9/002—Cane, bamboo
-
- 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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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Forests & Forestry (AREA)
- Mechanical Engineering (AREA)
- Chemical And Physical Treatments For Wood And The Like (AREA)
Abstract
The invention discloses a method for carbonizing a bamboo material through compound molten salt and belongs to the technical field of bamboo and wood processing. The method comprises the steps that the bamboo material with the water content below 15% is fetched; compound salt is heated and molten, and the temperature is increased to the preset temperature of 150-550 DEG C, wherein the compound salt is KNO3 and NaNO2 compound salt or KNO3 and NaNO3 compound salt; after the temperature of the compound salt reaches the preset temperature, the bamboo material is put into the compound salt to be subjected to carbonizing treatment; after carbonizing is completed, the bamboo material is taken out, cooled, drained off and then subjected to polishing, planing, sanding or paint treatment; and the compound salt used for a long time is taken out to be dissolved in water, filtered, purified, crystallized and reused. The compound molten salt is used as the medium to carbonize the bamboo material, equipment is simpler than steam carbonizing equipment, the temperature of the compound molten salt type liquid is easier to control, the repeatability of the process is improved greatly, and as the compound molten salt type liquid can isolate air, the strength loss is reduced after carbonizing.
Description
Technical field
The invention belongs to bamboo wood processing technique field, be specifically related to the method for composite fused salt charing bamboo wood.
Background technology
Bamboo wood has a wide range of applications, but natural bamboo color is comparatively single, and charing process is a kind of environment-friendly treatment method not needing chemical agent, can enrich bamboo wood aberration, improve bamboo wood corrosion resistant performance and dimension stability.At present, bamboo wood carbonized method adopts high steam, conduction oil or high temperature silicon wet goods medium to carbonize all mostly.Adopt high steam to be medium when carbonizing, high steam is high to equipment requirement on the one hand, and the more difficult accurate control of steam, causes cost higher thus on the other hand, and different batches charing bamboo wood easily has larger aberration, affects product quality.When adopting conduction oil or high-temperature silicon oil to carbonize, medium not easily purifies, reuse.
Summary of the invention
For prior art Problems existing, the object of the invention is to design the technical scheme providing a kind of composite fused salt to carbonize the method for bamboo wood.
The method of described composite fused salt charing bamboo wood, is characterized in that comprising following processing step:
1) get the raw materials ready
Get the bamboo wood of water content less than 15%;
2) medium heats up
Complex salt heat fused is risen to predetermined temperature, and described predetermined temperature is 150 ~ 550 DEG C, described complex salt is KNO
3and NaNO
2complex salt, or KNO
3and NaNO
3complex salt;
3) charing process
After salt temperature to be composite reaches predetermined temperature, bamboo wood step 1) obtained is put into complex salt and is carried out charing process;
4) following process
After charing completes, take out bamboo wood cooling, drain, then carry out polishing, scrape, sanding or paint process process;
5) purification of salt
The complex salt used for a long time is taken out and is dissolved in water, filtration, purification, crystallization, reuse.
The method of described composite fused salt charing bamboo wood, is characterized in that in described step 1), bamboo wood comprises former bamboo, bamboo cane, bamboo silk or bamboo board.
The method of described composite fused salt charing bamboo wood, is characterized in that described step 2) in predetermined temperature use KNO when being 150 DEG C ~ 550 DEG C
3and NaNO
2complex salt, described KNO
3and NaNO
2weight ratio be 1:1, when predetermined temperature is 260 DEG C ~ 550 DEG C use KNO
3and NaNO
3complex salt, described KNO
3and NaNO
3weight ratio be 1:1.
The method of described composite fused salt charing bamboo wood, is characterized in that carbonizing 0.2 ~ 18 hour processing time in described step 3).
The present invention adopts composite fused salt to be that medium carries out charing process to bamboo wood, and the charing of equipment relative steam is more simple, and composite fused salt system liquid, be easier to control temperature, increase substantially the repeatability of technique, composite fused salt system liquid can completely cut off air, reduces the loss of strength after charing; In addition, the present invention's complex salt used is dissolvable in water water by recrystallization after the method purifications such as filtrations, and relative conduction oil, high temperature silicon wet goods medium are easier to purify, reuse.
Detailed description of the invention
The present invention is further illustrated below in conjunction with embodiment.
Embodiment 1: the method for composite fused salt charing bamboo wood
1) get the raw materials ready
Get the former bamboo of water content less than 15%;
2) medium heats up
Complex salt melted by resistance heated and rise to 150 DEG C, described complex salt is for press KNO
3: NaNO
2weight ratio is the complex salt of 1:1 mixing;
3) charing process
After salt temperature to be composite reaches predetermined temperature, bamboo wood step 1) obtained is put into complex salt and is carried out charing process 18 hours;
4) following process
After charing completes, take out bamboo wood cooling, drain, then carry out polishing, scrape, sanding or paint process process;
5) purification of salt
The complex salt used for a long time is taken out and is dissolved in water, filtration, purification, crystallization, reuse.
Embodiment 2: the method for composite fused salt charing bamboo wood
1) get the raw materials ready
Get the bamboo cane of water content less than 15%;
2) medium heats up
Complex salt melted by Electromagnetic Heating and rise to 260 DEG C, described complex salt is for press KNO
3: NaNO
3weight ratio is the complex salt of 1:1 mixing;
3) charing process
After salt temperature to be composite reaches predetermined temperature, bamboo wood step 1) obtained is put into complex salt and is carried out charing process 10 hours;
4) following process
After charing completes, take out bamboo wood cooling, drain, then carry out polishing, scrape, sanding or paint process process;
5) purification of salt
The complex salt used for a long time is taken out and is dissolved in water, filtration, purification, crystallization, reuse.
Embodiment 3: the method for composite fused salt charing bamboo wood
1) get the raw materials ready
Get the bamboo silk of water content less than 15%;
2) medium heats up
Complex salt melted by Electromagnetic Heating and rise to 350 DEG C, described complex salt is for press KNO
3: NaNO
3weight ratio is the complex salt of 1:1 mixing;
3) charing process
After salt temperature to be composite reaches predetermined temperature, bamboo wood step 1) obtained is put into complex salt and is carried out charing process 5 hours;
4) following process
After charing completes, take out bamboo wood cooling, drain, then carry out polishing, scrape, sanding or paint process process;
5) purification of salt
The complex salt used for a long time is taken out and is dissolved in water, filtration, purification, crystallization, reuse.
Embodiment 4: the method for composite fused salt charing bamboo wood
1) get the raw materials ready
Get the bamboo board of water content less than 15%;
2) medium heats up
Complex salt melted by Electromagnetic Heating and rise to 550 DEG C, described complex salt is for press KNO
3: NaNO
2weight ratio is the complex salt of 1:1 mixing;
3) charing process
After salt temperature to be composite reaches predetermined temperature, bamboo wood step 1) obtained is put into complex salt and is carried out charing process 0.2 hour;
4) following process
After charing completes, take out bamboo wood cooling, drain, then carry out polishing, scrape, sanding or paint process process;
5) purification of salt
The complex salt used for a long time is taken out and is dissolved in water, filtration, purification, crystallization, reuse.
Claims (4)
1. the method for composite fused salt charing bamboo wood, is characterized in that comprising following processing step:
1) get the raw materials ready
Get the bamboo wood of water content less than 15%;
2) medium heats up
Complex salt heat fused is risen to predetermined temperature, and described predetermined temperature is 150 ~ 550 DEG C, described complex salt is KNO
3and NaNO
2complex salt, or KNO
3and NaNO
3complex salt;
3) charing process
After salt temperature to be composite reaches predetermined temperature, bamboo wood step 1) obtained is put into complex salt and is carried out charing process;
4) following process
After charing completes, take out bamboo wood cooling, drain, then carry out polishing, scrape, sanding or paint process process;
5) purification of salt
The complex salt used for a long time is taken out and is dissolved in water, filtration, purification, crystallization, reuse.
2. the method for composite fused salt charing bamboo wood as claimed in claim 1, is characterized in that in described step 1), bamboo wood comprises former bamboo, bamboo cane, bamboo silk or bamboo board.
3. the method for composite fused salt charing bamboo wood as claimed in claim 1, is characterized in that described step 2) in predetermined temperature use KNO when being 150 DEG C ~ 550 DEG C
3and NaNO
2complex salt, described KNO
3and NaNO
2weight ratio be 1:1, when predetermined temperature is 260 DEG C ~ 550 DEG C use KNO
3and NaNO
3complex salt, described KNO
3and NaNO
3weight ratio be 1:1.
4. the method for composite fused salt charing bamboo wood as claimed in claim 1, is characterized in that carbonizing 0.2 ~ 18 hour processing time in described step 3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510857856.5A CN105500485A (en) | 2015-11-30 | 2015-11-30 | Method for carbonizing bamboo material through compound molten salt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510857856.5A CN105500485A (en) | 2015-11-30 | 2015-11-30 | Method for carbonizing bamboo material through compound molten salt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105500485A true CN105500485A (en) | 2016-04-20 |
Family
ID=55708974
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510857856.5A Pending CN105500485A (en) | 2015-11-30 | 2015-11-30 | Method for carbonizing bamboo material through compound molten salt |
Country Status (1)
| Country | Link |
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| CN (1) | CN105500485A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109333715A (en) * | 2018-11-08 | 2019-02-15 | 福建农林大学 | A kind of method of the co-melting system collaboration heat treatment improved wood of inorganic salts-metal |
| CN110756167A (en) * | 2019-12-04 | 2020-02-07 | 河南师范大学 | Preparation method and application of modified biochar for adsorbing cadmium ions in wastewater |
| CN112194135A (en) * | 2020-10-21 | 2021-01-08 | 四川大学 | Method for preparing MXenes material from molten salt |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002361612A (en) * | 2001-06-08 | 2002-12-18 | Japan Blower Industrial Co Ltd | Building material containing bamboo as main component |
| CN101024292A (en) * | 2006-10-15 | 2007-08-29 | 林智勇 | Method for making surface-carbonized bamboo-wood products |
| CN104762487A (en) * | 2014-01-02 | 2015-07-08 | 北京有色金属研究总院 | Molten-salt heat-exchange temperature-controlling device and method of reaction furnace body |
-
2015
- 2015-11-30 CN CN201510857856.5A patent/CN105500485A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002361612A (en) * | 2001-06-08 | 2002-12-18 | Japan Blower Industrial Co Ltd | Building material containing bamboo as main component |
| CN101024292A (en) * | 2006-10-15 | 2007-08-29 | 林智勇 | Method for making surface-carbonized bamboo-wood products |
| CN104762487A (en) * | 2014-01-02 | 2015-07-08 | 北京有色金属研究总院 | Molten-salt heat-exchange temperature-controlling device and method of reaction furnace body |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109333715A (en) * | 2018-11-08 | 2019-02-15 | 福建农林大学 | A kind of method of the co-melting system collaboration heat treatment improved wood of inorganic salts-metal |
| CN110756167A (en) * | 2019-12-04 | 2020-02-07 | 河南师范大学 | Preparation method and application of modified biochar for adsorbing cadmium ions in wastewater |
| CN112194135A (en) * | 2020-10-21 | 2021-01-08 | 四川大学 | Method for preparing MXenes material from molten salt |
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Application publication date: 20160420 |
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