Preparation method of fruit tree, miscellaneous wood, coconut shell charcoal and activated carbon handicraft

Abstract

The application discloses a preparation method of fruit wood, miscellaneous wood, coconut shell charcoal and activated carbon handicraft, and belongs to the technical field of biomass carbonization and carbon-based handicrafts. The method comprises the following steps: after various fruit woods, miscellaneous woods and coconut shells are cut and impurities are removed, the fruit woods, miscellaneous woods and coconut shells are loaded into a kiln, and gradient heating is performed under semi-anoxic conditions until the temperature reaches 1500 DEG C, and carbonization is performed for 15 days; after the kiln is closed and aging is performed for 5 days, natural cooling is performed, and charcoal powder is prepared through crushing; 200 parts of the charcoal powder, 20 parts of starch and 180 milliliters of water are prepared into molding slurry, and the molding slurry is poured into a mold or is engraved into a shape, and the handicraft is prepared through natural air drying; or activated carbon with an iodine adsorption value of greater than or equal to 800 mg / g is directly used, and the activated carbon is directly prepared into slurry through batching without carbonization. The method is stable and controllable, the blank body is not cracked, has high strength and a smooth appearance, can be finely engraved and can be mass-produced, and high-value-added utilization of biomass raw materials is realized.

Description

Technical Field

[0002] This invention relates to the field of biomass carbonization processing and carbon-based handicraft preparation technology, specifically to a method for preparing fruit wood, miscellaneous wood, coconut shell charcoal and activated carbon handicrafts. Background Technology

[0003] Fruitwood, miscellaneous wood, and coconut shells are all excellent raw materials for preparing high-quality charcoal and activated carbon. Currently, traditional charcoal production mainly focuses on fuel charcoal and ordinary adsorption charcoal, with relatively crude production processes and insufficient precision in controlling key parameters such as temperature and time. This results in charcoal with uneven structure and poor pulverization performance, making it difficult to meet the requirements of handicraft processing.

[0004] Existing charcoal sculptures and charcoal-based handicrafts generally suffer from problems such as unreasonable binder ratios, easy cracking of the blank, low strength, and poor surface smoothness. Furthermore, there is a lack of integrated processing methods from raw material carbonization to finished product processing with stable and controllable process parameters, limiting the high-value utilization of biomass resources such as fruit trees, miscellaneous woods, and coconut shells. Therefore, we provide a method for preparing handicrafts using various fruit trees, miscellaneous woods, and coconut shells as raw materials, through kiln carbonization, powdering, shaping, carving, or casting. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a method for preparing fruit wood, miscellaneous wood, coconut shell charcoal, and activated carbon handicrafts that features stable processing, high yield, and excellent texture. This method enables the high-value utilization of biomass raw materials, and the resulting handicrafts are characterized by high strength, crack resistance, and excellent appearance, effectively solving the problems in the prior art.

[0006] To achieve the above objectives, the technical solution adopted by the present invention is as follows: a method for preparing handicrafts made of fruit wood, miscellaneous wood, and coconut shell charcoal powder, comprising the following steps: (1) Loading raw materials into the kiln: After cutting and removing impurities from various fruit trees, miscellaneous woods and coconut shells, they are neatly loaded into the kiln and the kiln body is sealed to form a semi-oxygen-deficient carbonization environment. (2) High-temperature carbonization: Under semi-oxygen-deficient conditions, the temperature is gradually increased from room temperature to [temperature value], and carbonization is carried out continuously for 15 days; (3) Closed kiln aging: After carbonization is completed, heating is stopped, the kiln is kept completely closed, and the charcoal is left to stand for 5 days to allow it to cool down to room temperature naturally. Then the finished charcoal is obtained from the kiln. (4) Crushing and grinding: The finished charcoal is fed into a crusher and processed into fine charcoal powder.

[0007] (5) Mixing ingredients: Weigh 200 parts of charcoal powder (fruitwood / miscellaneous wood / coconut shell charcoal), 20 parts of starch, and 180 ml of water according to the proportion, mix and stir evenly to obtain a slurry.

[0008] (6) Molding and processing: Method 1: Pour the slurry into a mold, let it air dry to form a blank, use a carving machine to carve the blank, and then polish and trim it to obtain the handicraft. Method 2: Pour the slurry directly into the molding mold, let it air dry and set naturally, and then demold and trim it to obtain the handicraft.

[0009] Another technical solution of the present invention is to provide a method for preparing activated carbon handicrafts, in which activated carbon with an iodine adsorption value ≥800 mg / g can be directly used to replace carbon powder. The activated carbon does not need to be carbonized in a kiln. It can be directly mixed with starch and water according to the above ratio to form a slurry. The subsequent molding, carving and pouring processes are the same.

[0010] Compared with existing technologies, the method for preparing fruitwood, miscellaneous wood, coconut shell charcoal, and activated carbon handicrafts provided by this invention has the following beneficial effects: 1. By adopting a semi-oxygen-deficient environment, gradient heating to carbonization for 15 days, and kiln-closed standing for 5 days, the charcoal has a uniform structure, stable performance, no cracks, and is easy to crush, significantly improving the quality of charcoal powder.

[0011] 2. Using a specific ratio of charcoal powder, starch, and water, with starch as a natural and environmentally friendly binder, the slurry has good formability, and the blank does not crack, has high strength, and is odorless.

[0012] 3. It is compatible with fruit wood, miscellaneous wood, coconut shell charcoal and activated carbon with high iodine adsorption value. The activated carbon can be used directly as raw material, simplifying the process. It is also compatible with carving and molding, which can produce fine carvings and also realize mass production, realizing the efficient and high-value utilization of biomass. Detailed Implementation

[0013] The present invention will be further described in detail below with reference to specific embodiments.

[0014] Example 1 A method for preparing handicrafts made from fruitwood, miscellaneous wood, and coconut shell charcoal powder includes the following steps: (1) Cut fruit wood, miscellaneous wood or coconut shells, remove impurities and load them into the carbonization kiln, seal the kiln body to form a semi-oxygen-deficient environment; (2) Gradually increase the temperature from room temperature to a constant temperature and carbonize for 15 days; (3) Stop heating, seal the kiln and let it stand for 5 days. After it cools naturally to room temperature, open the kiln and remove the charcoal. (4) Put the charcoal into a pulverizer and pulverize it to obtain fine charcoal powder; (5) Weigh out the raw materials according to 180 mL of charcoal powder, starch and water, mix and stir evenly to make a slurry; (6) Pour the slurry into a flat mold and let it air dry at room temperature until the moisture content is no more than 5% to obtain a dried green body; (7) Place the dried blank into the engraving machine, engrave according to the preset pattern, and obtain the charcoal sculpture after polishing and finishing.

[0015] Example 2 A method for preparing handicrafts made from fruitwood, miscellaneous wood, and coconut shell charcoal powder includes the following steps: (1) Cut fruit wood, miscellaneous wood or coconut shells, remove impurities and load them into the carbonization kiln, seal the kiln body to form a semi-oxygen-deficient environment; (2) Gradually increase the temperature from room temperature to a constant temperature and carbonize for 15 days; (3) Stop heating, seal the kiln and let it stand for 5 days. After it cools naturally to room temperature, open the kiln and remove the charcoal. (4) Put the charcoal into a pulverizer and pulverize it to obtain fine charcoal powder; (5) Weigh out the raw materials according to 180 mL of charcoal powder, starch and water, mix and stir evenly to make a slurry; (6) Pour the slurry directly into the molding mold and smooth the surface; (7) Allow to air dry and set at room temperature. After demolding, trim the product to obtain a carbon powder molded handicraft.

[0016] Example 3 A method for preparing activated carbon handicrafts includes the following steps: (1) Activated carbon with an iodine adsorption value ≥800 mg / g can be directly selected, without the need for kiln carbonization; (2) Weigh out the raw materials according to 180 mL of activated carbon, starch and water, mix and stir evenly to make a slurry; (3) Pour the slurry into the mold and let it air dry to form a blank; (4) After carving or direct demolding and trimming, high-adsorption activated carbon handicrafts are obtained.

[0017] Process Parameter Description 1. The carbonization process uses a gradient heating method and takes 15 days to ensure that the charcoal is fully carbonized and structurally stable.

[0018] 2. The kiln should be closed and allowed to stand for 5 days to prevent the charcoal from cracking due to rapid cooling and to improve the density and strength of the charcoal.

[0019] 3. Natural air drying is used during molding, avoiding high-temperature drying, which reduces deformation and cracking of the blanks and improves the yield and appearance quality. 4. Activated carbon with an iodine adsorption value ≥800 mg / g can be directly mixed into a slurry without carbonization treatment, ensuring the strength and appearance of the handicrafts while improving air purification performance.

Claims

1. A method for preparing handicrafts made from fruitwood, miscellaneous wood, and coconut shell charcoal, characterized in that, Includes the following steps: (1) After cutting and removing impurities from various fruit trees, miscellaneous woods, and coconut shells, they are neatly loaded into the kiln and the kiln body is sealed to form a semi-oxygen-deficient carbonization environment; (2) Under semi-anaerobic conditions, the temperature was gradually increased from room temperature to [temperature value], and carbonization was carried out continuously for 15 days; (3) After carbonization is completed, stop heating, close the kiln and let it stand for 5 days. After the temperature drops naturally, the carbon is removed. (4) The resulting charcoal is fed into a pulverizer and processed into fine charcoal powder; (5) Mix 200 parts charcoal powder, 20 parts starch and 180 ml water evenly to form a slurry; (6) Place the slurry into a mold and let it air dry to form a shape, thus producing fruit wood, miscellaneous wood, and coconut shell charcoal powder handicrafts.

2. The method for preparing fruitwood, miscellaneous wood, and coconut shell charcoal handicrafts according to claim 1, characterized in that, In step (2), the carbonization temperature is gradually increased, and the total carbonization time is 15 days.

3. The method for preparing fruitwood, miscellaneous wood, and coconut shell charcoal handicrafts according to claim 1, characterized in that, In step (3), the kiln is closed and left to stand for 5 days, then naturally cooled to room temperature.

4. The method for preparing fruitwood, miscellaneous wood, and coconut shell charcoal handicrafts according to claim 1, characterized in that, The forming method in step 6) is as follows: the slurry is injected into the mold and allowed to dry naturally to form a blank, which is then carved and polished by a carving machine to obtain the finished handicraft.

5. The method for preparing fruitwood, miscellaneous wood, and coconut shell charcoal handicrafts according to claim 1, characterized in that, In step (6), the molding method is as follows: the slurry is directly poured into the mold, naturally dried and shaped, demolded and trimmed to obtain the finished handicraft.

6. A method for preparing activated carbon handicrafts, characterized in that, Activated carbon with an iodine adsorption value ≥800 mg / g can be used directly to replace carbon powder. The activated carbon is prepared by directly mixing it with starch and water in a certain proportion without going through a kiln carbonization step.