CN102212375A - Preparation method of machine-made charcoal and machine-made charcoal - Google Patents
Preparation method of machine-made charcoal and machine-made charcoal Download PDFInfo
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Abstract
The invention discloses a preparation method of machine-made charcoal and the machine-made charcoal. The method comprises the following steps: drying and crushing the farming and forestry residues, namely the outer shell and inner shell of chestnut, then performing extrusion molding on the crushed outer shell and inner shell of chestnut to prepare firewood sticks, and using the firewood sticks to perform Carbonization reaction and obtain the machine-made charcoal. In the method, the farming and forestry residues, namely the outer shell and inner shell of chestnut as a raw material to prepare the machine-made charcoal with high fixed carbon content and caloricity, thus the method is environmentally-friendly and provides the new raw material of the machine-made charcoal. The method has simple preparation technology and low production cost; when being burnt, the machine-made charcoal emits the special odor of chestnut; and the machine-made charcoal is suitable to be used as the barbecue charcoal, has dense texture, long burning time and high product yield, meets the national standard of broadleaf charcoal, namely GB/T17664-1999 and is suitable for industrial production.
Description
Technical field
The present invention relates to a kind of method for destructive distillation that is exclusively used in the solid-state former material of special shape, particularly a kind ofly prepare the method for machine-made charcoal and the machine-made charcoal of preparation with the cellulose material.
Background technology
Machine-made charcoal (machine-made charcoal), have another name called machine-made carbon, firewood rod, artificial charcoal, regenerated carbon, smokeless cleaning charcoal, rod carbon feedstock wide material sources, rice husk, Pericarppium arachidis hypogaeae, boll hull, corn cob, corn stalk, kaoliang stalk etc. all can be used as raw material production rod charcoal, are the best with sawdust, wood shavings, bamboo bits.Because machine-made charcoal is smokeless and tasteless and nontoxic, be widely used in family's heating, broil food; At industrial circle, can be used as industrial raw material, deep processing becomes gac etc.Because of machine-made charcoal density is big, the calorific value height, smokeless, tasteless, pollution-free, do not explode, inflammable, be the Green Product of generally acknowledging in the world.
The method for preparing machine-made charcoal is to be raw material with wood chip (sawdust) etc., the drying stove is dried into the suitable standard starting material of humidity, enters shaper (rod-made machine) after the cooling, again through high temperature, make firewood rod (work in-process) after the high pressure plasticizing, and then form through the charring furnace charing.Using the purpose of extrusion formation equipment is to make the material forming that contains certain moisture, be beneficial to the charing in later stage or be directly used in as the firewood bar fuel, so the composition of the water content of raw material and raw material is the determinative of decision extrusion temperature.The manufacturing of machine-made charcoal mainly is to utilize the Mierocrystalline cellulose of raw material and these carbonaceous compositions of xylogen to make, can, determine its factor that become ideal mechanism charcoal raw material to have two from the constituent of raw material: what of the quality of knot and content of lignin Mierocrystalline cellulose take.The quality that Mierocrystalline cellulose is taken knot directly influences the density and the physical strength of moulding stick, and content of lignin has then been determined the high carbon content of finished product.The Mierocrystalline cellulose and the chemistry of lignin's composition that utilize are the categories that belongs to carbohydrate, contain a lot of hydrophilic radicals on the molecular level as constituting the glucose of its fundamental unit, contain a lot of hydroxyls, these hydrophilic radicals are affine a lot of water molecules, in the process of extruding, if temperature is low excessively, xylogen can not soften effectively increases viscosity, is unfavorable for high-pressure molding, moisture can not effectively be discharged, the firewood rod that extruding is come out is bending, or not moulding, influences the follow-up charing and the yield of fixed carbon; If temperature is too high, xylogen is softening too fast, and it is fast to go out rod speed, the firewood rod is shaky, moisture will rapid evaporation become water vapour, breaks away from these hydrophilic radicals, thereby makes the explosion of firewood rod, this is the representation of the strong dehydration of firewood rod, the lines of firewood rod explosion or appearance fracture is unfavorable for the charing in later stage, and extrusion temperature is too high simultaneously, also influence the cost of product, and to the conditional request of shaper.Therefore, extruding plastifies in the process of firewood rod, and the water content of raw material, the temperature of extruding are 2 crucial in machine-made charcoal making processes parameters.The composition of raw material has influenced the selection of water content and extrusion temperature.
Chinese chestnut (Castanea mollissima) has another name called chestnut, Chinese Chinese chestnut, is the plant of Fagaceae Castanea, is the distinctive good dry fruit tree variety of China, and its fruit chestnut is by the outer fluffy and chestnut shell parcel of Chinese chestnut.Therefore fluffy and inner casing outside the Chinese chestnut fruit need be removed when processing and use produces the outer fluffy and chestnut shell of a large amount of waste----Chinese chestnut.For a long time, the outer fluffy and chestnut shell of Chinese chestnut is all handled as agriculture and forestry organic waste material, not only contaminate environment but also waste resource.
China's Chinese chestnut aboundresources, cultivation history is long, has approximately about 3,000 years.About 1,000 ten thousand mu of the present cultivated area of China Chinese chestnut accounts for 60% of world's chestnut output, for producing Li Daguo in the world.But Chinese chestnut is gathered and deep-processing process in, the outer fluffy and chestnut shell waste of a large amount of Chinese chestnut of generation has only minute quantity to be used for peasant household's auxiliary fuel at present, its main processing mode is to burn and abandon on the spot.Therefore, utilize the outer fluffy and shell of Chinese chestnut as raw material, production has the machine-made charcoal of high calorie value, by product is fully used, turns waste into wealth, produce high value-added product, resources advantage is changed into economic advantages, both increase the machine-made charcoal raw material type, alleviated the pressure of environmental purification again, had great economic worth and social value.
In order to protect environment; walk sustainable development economy; adapt to the requirement of modern green economy development; research to Chinese chestnut bud and chestnut shell is also increasing; with fluffy outside the Chinese chestnut that contains Mierocrystalline cellulose and xylogen and chestnut shell is the feedstock production machine-made charcoal; because outer fluffy Mierocrystalline cellulose and the content of lignin height of Chinese chestnut; and chestnut shell is except that containing Mierocrystalline cellulose; also contain a large amount of greases outside the xylogen; mixed Chinese chestnut is outer fluffy too high with the temperature of chestnut shell raw material in extrusion process; can cause the grease high temperature degradation; also because the grease heat radiation is slow, can quicken the explosion of firewood rod simultaneously, tangible explosion lines occur.
Present research mainly contains following research: people such as Yang Zhibin utilize the Chinese chestnut bud to prepare machine-made charcoal with wood chip and wood machining residues, the machine-made carbon raw material that this research is used is the outer bud of the high Chinese chestnut of carbon content, wood chip and wood machining residues, the Chinese chestnut inner casing low to carbon content is not used, and the yield of the machine-made carbon of this method preparation is low.This research and utilization the outer bud of the high Chinese chestnut of carbon content and wood chip and other wood machining residues, the carbon content height of the raw material that it utilized, and low to carbon content, in the Chinese chestnut course of processing amount many, to the easier even more important raw material chestnut shell that pollutes of environment without any utilization.
Application number is that 200510018119.2 application for a patent for invention discloses solid shape carbon that a kind of waste that utilizes in the Chinese chestnut process of manufacture----Chinese chestnut bud and chestnut shell be made into and preparation method thereof.This method is a raw material with Chinese chestnut bud and chestnut shell, becomes solid shape carbon through pulverizing, drying, extrusion molding with after charing is handled, and wherein chestnut shell shared proportioning in raw material is 0～20% by weight, and all the other raw materials are the Chinese chestnut bud.Though this making method has been used chestnut shell, the rate of utilization that accounts for most chestnut shell in the Chinese chestnut waste in the raw material of its use is low, only accounts for 0-20%, and raw material water ratio height in the firewood rod making step, and the not moulding of firewood rod of making is crooked easily; Extrusion molding temperature height causes the firewood rod to be squeezed out explosion behind the single-lead-screw extruding briquetting machine easily, or the lines of explosion occurs, influences follow-up charing, influences product cost.
The patent No. is that to disclose a kind of be the feedstock production process of active carbon with the chestnut shell to the patent of invention of ZL 200510019119.4, this method is removed the dust foreign material with chestnut shell earlier, 105～140 ℃ of oven dry, be ground into the fine powder of granularity for＜0.053mm, with concentration be that 0.15～0.45mol solder(ing)acid mixes, make the granular of diameter 4～5mm, perhaps make the peloid of specification, after drying removes moisture content, move in the charring furnace, charing is 200～240 minutes under 380～680 ℃ of temperature and oxygen barrier condition, changes vertical activation furnace then over to, 550～650 ℃ of temperature, activation is 30-45 minute in the air-flow of pressure 0.08～0.15MPa, activation products pH 2～2.5, the HCl solution washing dezincify that temperature is 85～95 ℃, solid-liquid separates again, and it is clean to neutral to add washing.The solid materials drying and dehydrating, last crushing and classification promptly obtains broken kernel gac, powdered carbon or spheric active carbon.
Summary of the invention
The objective of the invention is to provide a kind of preparation method of novel, simple machine-made charcoal at the problem that prior art exists.It is raw material that the present invention makes full use of the outer fluffy and inner casing of agriculture and forestry organic waste material----Chinese chestnut; be beneficial to environment protection; for the preparation machine-made charcoal provides the new raw material source; preparation is simple for the inventive method, and production cost is low, the machine-made charcoal product yield height of the present invention's preparation; fixed carbon content height; the thermal value height meets the standard-required of standard GB/T17664-1999 broad-leaved charcoal, suitability for industrialized production.
For realizing purpose of the present invention, one aspect of the present invention provides a kind of preparation method of machine-made charcoal, comprises following step in sequence:
1) fluffy outside the Chinese chestnut and chestnut shell being dried to water ratio is to pulverize behind the 11-15%, makes outer fluffy fragment of Chinese chestnut and chestnut shell fragment;
2) the outer fluffy fragment of Chinese chestnut and chestnut shell fragment are mixed after, carry out extrusion molding and handle, make the fluffy shell firewood of Chinese chestnut rod;
3) the fluffy shell firewood of Chinese chestnut rod is placed carry out charing in the charring furnace and handle.
Wherein, the water ratio described in the step 1) is preferably 13-15%.
Particularly, the length of outer fluffy fragment of Chinese chestnut described in the step 1) and chestnut shell fragment is 10-20mm, is preferably 15-20mm.
The weight part proportioning of outer fluffy fragment of Chinese chestnut wherein, step 2) and chestnut shell fragment is 6-8: 2-4, is preferably 6-7: 3-4.
The outer fluffy and chestnut shell of the Chinese chestnut of pulverizing particularly, step 2) is extrusion molding under the 160-180 ℃ of condition in temperature, makes the fluffy shell firewood of described Chinese chestnut rod.
Especially, the density of the fluffy shell firewood of Chinese chestnut rod is 1.1-1.4g/cm
3, be preferably 1.2-1.3g/cm
3
Wherein, carbonization reaction described in the step 3) is handled and is comprised following step in sequence:
A) drying stage
Temperature is elevated to 150 ℃ with the temperature rise rate of 1-3 ℃/min from room temperature in the charring furnace, and the temperature in the charring furnace remains 150 ℃ then, wherein heat up and temperature to remain time of 150 ℃ be 4-5h, the fluffy shell firewood of the Chinese chestnut in charring furnace rod is carried out drying;
B) the pre-charing stage
Temperature is elevated to 280 ℃ with the temperature rise rate of 1-3 ℃/min from 150 ℃ in the charring furnace, and the temperature in the charring furnace remains 280 ℃ then, wherein heat up and temperature to remain time of 280 ℃ be 9-10h, the fluffy shell firewood of the Chinese chestnut in charring furnace rod is carried out pre-charing;
C) the charing sintering stage
Temperature is elevated to 500-600 ℃ with the temperature rise rate of 1-3 ℃/min from 280 ℃ in the charring furnace, temperature in the charring furnace remains 500-600 ℃ then, wherein heat up and temperature to remain time of 500-600 ℃ be 4-8h, the fluffy shell firewood of the Chinese chestnut in charring furnace rod is carried out the charing sintering.
Particularly, the temperature rise rate of drying stage is preferably 1 ℃/min; The temperature rise rate in pre-charing stage, charing sintering stage is preferably 2-3 ℃/min.
Particularly, step C) time in charing sintering stage is preferably 5-8h.
The present invention provides a kind of machine-made charcoal that is prepared from according to the method described above on the other hand.
The present invention prepares the advantage that machine-made charcoal has and is:
1, the present invention is a raw material with fluffy outside the waste Chinese chestnut in Chinese chestnut plantation and the Chinese chestnut foodstuff production processing and chestnut shell, has especially made full use of Chinese chestnut inner casing resource, and the environmental pollution that has solved inner casing has enlarged the raw material sources of making machine-made charcoal.
2, the machine-made charcoal yield height of the inventive method preparation, reach more than 43%, fully and effectively utilized resource, the machine-made charcoal density height of preparation, fixed carbon content height reaches more than 68%, the thermal value height, reach more than the 5720kcal/kg, meet the standard-required of standard GB/T17664-1999 broad-leaved charcoal.
3, the machine-made charcoal of the present invention's preparation has the fragrance of Chinese chestnut, is widely used on the barbecue, and the firewood rod outward appearance of making is good, has the gloss of Chinese chestnut;
4, preparation method's of the present invention extrusion molding temperature is low, and explosion does not take place the firewood rod of making, and the grease pyrolysis does not take place a large amount of greases that contain in the Chinese chestnut inner casing, makes that the fragrance of Chinese chestnut is preserved.
5, raw material is dry earlier among the preparation method of the present invention, and then pulverize, the outer fluffy and chestnut shell particulate length of Chinese chestnut after the pulverizing is between 10-20mm, the length of feed particles fragment is even, the extrusion molding and the charing that are beneficial to the later stage are handled, the quality of the feasible machine-made charcoal of making is intensive, and combustion time is longer.
Water content when 6, the present invention defines the raw material extrusion molding, mold temperature, water content and extrusion molding temperature are low in the extrusion molding treating processes, the fluffy shell firewood of the Chinese chestnut of making clavate shape is stable, distortion of no firewood rod and explosion phenomenon, the productive rate and the quality of machine-made charcoal have been improved, be more conducive to the actual fabrication of machine-made charcoal, reduced the production cost of machine-made charcoal, improved production efficiency.
Description of drawings
Fig. 1 is preparation technology's schema of machine-made charcoal of the present invention.
Embodiment
Further describe the present invention below in conjunction with specific embodiment, advantage of the present invention and characteristics will be more clear along with description.But these embodiment only are exemplary, scope of the present invention are not constituted any restriction.It will be understood by those skilled in the art that and down can make amendment or replace without departing from the spirit and scope of the present invention, but these modifications and replacing all fall within the scope of protection of the present invention the details of technical solution of the present invention and form.
Embodiment 1
1, pulverizes raw material
It is 14% that fluffy outside the Chinese chestnut after the results and chestnut shell are dried to water ratio, adopts pulverizer with the outer fluffy and chestnut shell separated pulverizing of dried Chinese chestnut then, makes the fragment that chip length is 15-20mm
2, extrusion molding
The outer fluffy and chestnut shell fragment of Chinese chestnut after pulverizing is mixed, make the machine-made charcoal compound, wherein the ratio of the weight of outer fluffy and chestnut shell of Chinese chestnut is 7: 3;
The machine-made charcoal compound sent in the extrusion molding rod-made machine (D of Beifang-Huochetou Science-Technology Co., Ltd., Beijing type rod-made machine) carry out extrusion process, make the fluffy shell firewood of the Chinese chestnut rod of hollow, wherein, the extrusion molding temperature is 160 ℃, the long 50cm of firewood rod, diameter 6cm, hollow internal diameter 2cm, the density of firewood rod is 1.3g/cm
3
3, charing is handled
The fluffy shell firewood of the Chinese chestnut of hollow rod is placed in the charring furnace, heat temperature raising, carrying out charing handles, the charing treatment time is 21h, wherein charing handle to divide a three phases to finish, and the temperature of fs (being drying stage) is that room temperature (25 ℃) is warming up to 150 ℃, and promptly temperature is increased to 150 ℃ from room temperature with the speed of 1 ℃/min, keep down at 150 ℃ then, intensification and hold-time are 4h; The temperature of subordinate phase (being the pre-charing stage) is 150-280 ℃, and the time is 10h, and promptly temperature is increased to 280 ℃ from 150 ℃ of speed with 3 ℃ of min, keeps down at 280 ℃ then, and intensification and hold-time are 10h; The phase III temperature of (being the charing sintering stage) is 280-500 ℃, and the time is 7h, and promptly temperature is increased to 500 ℃ from 280 ℃ of speed with 2 ℃/min, keeps down at 500 ℃ then, and intensification and hold-time are 7h;
Stop heating, with the charring furnace sealing, be cooled to room temperature (25 ℃) then, that is, wherein the yield of machine-made charcoal is 45%.
Fixed carbon content, thermal value, ash content and volume that the machine-made charcoal of preparation is measured machine-made charcoal according to the method for national standard (GB/T17664-1999 broad-leaved charcoal) regulation are heavy.Measurement result is shown in Table 1.
Embodiment 2
Except pulverizing raw material stage Chinese chestnut fluffy and water ratio chestnut shell is 15%; The ratio of the weight of extrusion molding step Chinese chestnut outer fluffy and chestnut shell is 6: 4, and the extrusion molding temperature is 180 ℃, and the density of firewood rod is 1.2g/cm
3The treatment time is 19h in the charing treatment step, and the temperature of fs (being drying stage) is that room temperature (20 ℃) is warming up to 150 ℃, and promptly temperature is increased to 150 ℃ from room temperature with the speed of 1 ℃/min, and heating-up time and hold-time are 5h; The temperature of subordinate phase (being the pre-charing stage) is 150-280 ℃, and the time is 9h, and promptly temperature is increased to 280 ℃ from 150 ℃ of speed with 3 ℃/min, and intensification and hold-time are 9h; The temperature that the phase III (being the charing sintering stage) is handled in charing is 280-550 ℃, and the time is 5h, and promptly temperature is increased to 550 ℃ from 280 ℃ of speed with 3 ℃/min, and heating-up time and hold-time are 5h; All the other are identical with embodiment 1.
Wherein the yield of machine-made charcoal is 43%.
Fixed carbon content, thermal value, ash content and volume that the machine-made charcoal of preparation is measured machine-made charcoal according to the method for national standard (GB/T17664-1999 broad-leaved charcoal) regulation are heavy.Measurement result is shown in Table 1.
Embodiment 3
Except pulverizing fluffy and water ratio chestnut shell of raw material stage Chinese chestnut is 13%, and the length of the fragment of the Chinese chestnut of pulverizing outer fluffy and chestnut shell is 10-20mm; The ratio of the weight of extrusion molding step Chinese chestnut outer fluffy and chestnut shell is 8: 2, and the extrusion molding temperature is 170 ℃, and the density of firewood rod is 1.3g/cm
3The treatment time is 22h in the charing treatment step, and the temperature of fs (being drying stage) is that room temperature is warming up to 150 ℃, and promptly temperature is increased to 150 ℃ from room temperature with the speed of 1 ℃/min, then under 150 ℃, heats up and the hold-time is 4h; The temperature of subordinate phase (being the pre-charing stage) is 150-280 ℃, and the time is 10h, and promptly temperature is increased to 280 ℃ from 150 ℃ of speed with 2 ℃/min, keeps down at 280 ℃ then, and intensification and hold-time are 10h; The temperature that the phase III (being the charing sintering stage) is handled in charing is 280-600 ℃, and the time is 8h, and promptly temperature is increased to 600 ℃ from 280 ℃ of speed with 3 ℃/min, keeps down at 600 ℃ then, and intensification and hold-time are 8h; All the other are identical with embodiment 1.
Wherein the yield of machine-made charcoal is 47%.
Fixed carbon content, thermal value, ash content and volume that the machine-made charcoal of preparation is measured machine-made charcoal according to the method for national standard (GB/T17664-1999 broad-leaved charcoal) regulation are heavy.Measurement result is shown in Table 1.
Reference examples
Except pulverizing fluffy and water ratio chestnut shell of raw material stage Chinese chestnut is 18%, and the Chinese chestnut after the pulverizing outer fluffy and chestnut shell are that the screen cloth of φ 12mm sieves with the aperture; The ratio of the weight of extrusion molding step Chinese chestnut outer fluffy and chestnut shell is 8: 2, and the extrusion molding temperature is 200 ℃; Charing sintering phase temperature is 280-500 ℃ in the charing treatment step, and the charing treatment time is outside the 22h, and all the other are identical with embodiment 1.
Wherein the yield of machine-made charcoal is 30%.
Fixed carbon content, thermal value, ash content and volume that the machine-made charcoal of preparation is measured machine-made charcoal according to the method for national standard (GB/T17664-1999 broad-leaved charcoal) regulation are heavy.Measurement result is shown in Table 1.
The detected result of table 1 machine-made charcoal
| Embodiment 1 | Embodiment 2 | Embodiment 3 | Reference examples | |
| Machine-made charcoal yield (%) | 45 | 43 | 47 | 30 |
| Ash content (%) | 18.9 | 19.4 | 18.1 | 22.3 |
| Fixed carbon content (%) | 70.6 | 68.2 | 74.1 | 57 |
| Heavy (the g/m of volume 3) | 1.1 | 1.0 | 1.2 | 0.8 |
| Calorific value (kcal/kg) | 5890 | 5720 | 6210 | 5412 |
Detected result shows: the yield of the machine-made charcoal of the inventive method preparation is up to more than 43%; The ash content of machine-made charcoal is lower than 19.4%; Fixed carbon content is higher than 68.2%; The density of machine-made charcoal is big, reaches 1.0-1.2g/m3; The calorific value height of charcoal, the calorific value of every kilogram of charcoal reaches more than the 5720kcal, and the fixed carbon of machine-made charcoal has reached the standard of GB/T17664-1999 broad-leaved charcoal.
Claims (10)
1. the preparation method of a machine-made charcoal comprises following step in sequence:
1) fluffy outside the Chinese chestnut and chestnut shell being dried to water ratio is to pulverize behind the 11-15%, makes outer fluffy fragment of Chinese chestnut and chestnut shell fragment;
2) the outer fluffy fragment of Chinese chestnut and chestnut shell fragment are mixed after, carry out extrusion molding and handle, make the fluffy shell firewood of Chinese chestnut rod;
3) the fluffy shell firewood of Chinese chestnut rod is sent into carried out charing in the charring furnace and handle.
2. preparation method as claimed in claim 1 is characterized in that the water ratio described in the step 1) is 13-15%.
3. preparation method as claimed in claim 1 is characterized in that the length of outer fluffy fragment of Chinese chestnut described in the step 1) and chestnut shell fragment is 10-20mm.
4. preparation method as claimed in claim 3 is characterized in that the length of the fragment of outer fluffy fragment of described Chinese chestnut and chestnut shell fragment is 15-20mm.
5. preparation method as claimed in claim 1 is characterized in that step 2) described in the weight part proportioning of the outer fluffy fragment of Chinese chestnut and chestnut shell fragment be 6-8: 2-4.
6. preparation method as claimed in claim 5 is characterized in that the weight part proportioning of outer fluffy fragment of described Chinese chestnut and chestnut shell fragment is 6-7: 3-4.
7. preparation method as claimed in claim 1 is characterized in that step 2) described in the outer fluffy and chestnut shell of the Chinese chestnut of pulverizing be extrusion molding under the 160-180 ℃ of condition in temperature, make the fluffy shell firewood of described Chinese chestnut rod.
8. preparation method as claimed in claim 1 is characterized in that the processing of charing described in the step 3) comprises following step in sequence:
A) drying stage
Temperature is elevated to 150 ℃ with the temperature rise rate of 1-3 ℃/min from room temperature in the charring furnace, and the temperature in the charring furnace remains 150 ℃ then, wherein heat up and temperature to remain time of 150 ℃ be 4-5h, the fluffy shell firewood of the Chinese chestnut in charring furnace rod is carried out drying;
B) the pre-charing stage
Temperature is elevated to 280 ℃ with the temperature rise rate of 1-3 ℃/min from 150 ℃ in the charring furnace, and the temperature in the charring furnace remains 280 ℃ then, wherein heat up and temperature to remain time of 280 ℃ be 9-10h, the fluffy shell firewood of the Chinese chestnut in charring furnace rod is carried out pre-charing;
C) the charing sintering stage
Temperature is elevated to 500-600 ℃ with the temperature rise rate of 1-3 ℃/min from 280 ℃ in the charring furnace, temperature in the charring furnace remains 500-600 ℃ then, wherein heat up and temperature to remain time of 500-600 ℃ be 4-8h, the fluffy shell firewood of the Chinese chestnut in charring furnace rod is carried out the charing sintering.
9. preparation method as claimed in claim 8, the temperature rise rate that it is characterized in that pre-charing stage, charing sintering stage is 2-3 ℃/min.
10. a machine-made charcoal is characterized in that according to being prepared from as claim 1-9 either party method.
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| CN111647417A (en) * | 2020-06-09 | 2020-09-11 | 韩雪冰 | Method for producing machine-made charcoal by using potato residues and obtained machine-made charcoal |
| CN113186011A (en) * | 2021-04-19 | 2021-07-30 | 滁州市昌春木炭专业合作社 | Processing technology of quercus acutissima charcoal |
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| CN102786968A (en) * | 2012-07-31 | 2012-11-21 | 王俊人 | Method for producing machine-made charcoal from Yunnan pipe cone |
| CN103421572A (en) * | 2013-07-19 | 2013-12-04 | 石台九洲机制碳有限公司 | Processed charcoal |
| CN103421572B (en) * | 2013-07-19 | 2015-08-05 | 石台九洲机制碳有限公司 | A kind of machine-made charcoal |
| CN103773405A (en) * | 2014-01-24 | 2014-05-07 | 贵州关岭晟焱炭业有限公司 | Method for charring ageratina adenophora |
| CN104164243A (en) * | 2014-08-08 | 2014-11-26 | 广东省宜华木业股份有限公司 | Method for producing wood moulded charcoal by virtue of wood machining residues |
| CN105199802B (en) * | 2015-09-10 | 2017-12-19 | 湖北和泰生物能源有限公司 | A kind of production method of Chinese chestnut thorn bag biomass molding fuel |
| CN105199802A (en) * | 2015-09-10 | 2015-12-30 | 湖北和泰生物能源有限公司 | Production method of chestnut thorn husk biomass briquette |
| CN106811259A (en) * | 2015-12-02 | 2017-06-09 | 东至县森茂碳业有限公司 | A kind of preparation method of charcoal |
| CN106350143A (en) * | 2016-08-25 | 2017-01-25 | 盈江县湘盈机制炭业有限公司 | High-heat-value machine-made charcoal and preparation method thereof |
| CN106520156A (en) * | 2016-12-09 | 2017-03-22 | 广西北海浩邦新能源科技有限公司 | Method for producing charcoal by dryly distilling and pyrolyzing saw dust |
| CN108264912A (en) * | 2017-01-01 | 2018-07-10 | 黎娟 | It is a kind of to utilize machine-made carbon made of durian shell |
| CN110317654A (en) * | 2019-07-05 | 2019-10-11 | 甘肃西能环保科技有限公司 | A kind of novel biomass fuel mechanism carbon-point and its production method |
| CN111647417A (en) * | 2020-06-09 | 2020-09-11 | 韩雪冰 | Method for producing machine-made charcoal by using potato residues and obtained machine-made charcoal |
| CN113186011A (en) * | 2021-04-19 | 2021-07-30 | 滁州市昌春木炭专业合作社 | Processing technology of quercus acutissima charcoal |
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