KR102143933B1 - Kenaf wood pellets using those the xylem and manufacturing method thereof - Google Patents
Kenaf wood pellets using those the xylem and manufacturing method thereof Download PDFInfo
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- KR102143933B1 KR102143933B1 KR1020190030666A KR20190030666A KR102143933B1 KR 102143933 B1 KR102143933 B1 KR 102143933B1 KR 1020190030666 A KR1020190030666 A KR 1020190030666A KR 20190030666 A KR20190030666 A KR 20190030666A KR 102143933 B1 KR102143933 B1 KR 102143933B1
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L5/00—Solid fuels
- C10L5/02—Solid fuels such as briquettes consisting mainly of carbonaceous materials of mineral or non-mineral origin
- C10L5/06—Methods of shaping, e.g. pelletizing or briquetting
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L5/00—Solid fuels
- C10L5/02—Solid fuels such as briquettes consisting mainly of carbonaceous materials of mineral or non-mineral origin
- C10L5/06—Methods of shaping, e.g. pelletizing or briquetting
- C10L5/10—Methods of shaping, e.g. pelletizing or briquetting with the aid of binders, e.g. pretreated binders
- C10L5/14—Methods of shaping, e.g. pelletizing or briquetting with the aid of binders, e.g. pretreated binders with organic binders
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L5/00—Solid fuels
- C10L5/02—Solid fuels such as briquettes consisting mainly of carbonaceous materials of mineral or non-mineral origin
- C10L5/34—Other details of the shaped fuels, e.g. briquettes
- C10L5/36—Shape
- C10L5/363—Pellets or granulates
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L5/00—Solid fuels
- C10L5/40—Solid fuels essentially based on materials of non-mineral origin
- C10L5/44—Solid fuels essentially based on materials of non-mineral origin on vegetable substances
- C10L5/442—Wood or forestry waste
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L2230/00—Function and purpose of a components of a fuel or the composition as a whole
- C10L2230/22—Function and purpose of a components of a fuel or the composition as a whole for improving fuel economy or fuel efficiency
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L2290/00—Fuel preparation or upgrading, processes or apparatus therefore, comprising specific process steps or apparatus units
- C10L2290/28—Cutting, disintegrating, shredding or grinding
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/10—Biofuels, e.g. bio-diesel
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel
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Abstract
Description
본 발명은 케나프의 목질부를 이용한 우드펠렛 및 이의 제조방법에 관한 것이다.The present invention relates to wood pellets using the woody part of kenaf and a method of manufacturing the same.
대한민국 공개특허 제10-2019-0021821호(공개일자: 2019.3.6, 발명의 명칭: 케나프를 이용한 바이오 고형 연료 및 이의 제조방법)는 케나프의 이물질을 제거하고 분쇄하는 단계; 상기 분쇄된 케나프 분말을 함수율이 7 중량% 이하가 되도록 30 내지 40℃의 조건에서 2~3일 동안 건조하는 단계; 및 상기 건조된 케나프 분말을 압축성형하는 단계;를 포함하는 발열량이 증가된 케나프 우드펠릿의 제조방법이 개시되어 있다.Republic of Korea Patent Laid-Open Publication No. 10-2019-0021821 (published date: 2019.3.6, title of invention: bio-solid fuel using kenaf and a method for manufacturing the same) includes steps of removing and pulverizing foreign substances in kenaf; Drying the pulverized kenaf powder for 2 to 3 days under a condition of 30 to 40° C. so that the moisture content is 7% by weight or less; And compression molding the dried kenaf powder; a method of manufacturing kenaf wood pellets with increased calorific value comprising.
이러한 종래 기술은, 석탄 화력 발전의 바이오 매스 원료 전환을 통해 미세먼지 및 이산화탄소 배출 저감을 실현할 수 있다고 주장하는 반면, 케나프의 초본계와 목질계를 모두 활용하여 건조시간이 장시간 소요되고 압축율이 양호하지 못한 단점이 있었다.While such conventional technology claims that it is possible to realize reduction of fine dust and carbon dioxide emissions through the conversion of biomass raw materials for coal-fired power generation, it takes a long time to dry and has good compression ratio by utilizing both the herbaceous and woody systems of Kenaf. There was a drawback that I couldn't do.
상기와 같은 문제점을 해결하고자 창출된 본 발명의 목적은, 케나프의 목질부와 미소량의 바인더만으로 우드펠렛을 대량 제조할 수 있는 케나프의 목질부를 이용한 우드펠렛 및 이의 제조방법을 제공하는 데 있다.An object of the present invention created to solve the above problems is to provide a wood pellet using the woody part of kenaf and a method for manufacturing the same, which can mass-produce wood pellets with only a woody part of kenaf and a small amount of binder. .
이러한 본 발명의 목적은, (a) 케나프의 뿌리, 잔가지 및 잎을 제거한 후 절단하는 단계와; (b) 절단된 케나프를 분쇄하여 케나프 분말을 제조하는 단계와; (c) 상기 케나프 분말 100 중량부에 대하여, 천연바인더 1 ~ 5 중량부 및 정제수 3 ~ 5 중량부를 혼합한 후 성형하여 우드 펠렛을 제조하는 단계로 이루어진 케나프의 목질부를 이용한 우드펠렛의 제조방법에 의해 달성될 수 있다.The object of the present invention is, (a) cutting after removing the roots, twigs and leaves of kenaf; (b) pulverizing the cut kenaf to prepare kenaf powder; (c) Preparation of wood pellets using the woody part of kenaf consisting of mixing 1 to 5 parts by weight of natural binder and 3 to 5 parts by weight of purified water and molding to produce wood pellets based on 100 parts by weight of the kenaf powder Can be achieved by the method.
바람직하게는, 본 발명의 상기 (a)단계는, (a)-1 케나프의 뿌리, 잔가지 및 잎을 제거하는 단계와, (a)-2 상기 케나프를 실온에서 30 ~ 45일간 건조하는 단계와, (a)-3 건조된 상기 케나프를 50 ~ 60cm로 절단하는 단계로 이루어지는 것을 특징으로 한다.Preferably, the step (a) of the present invention comprises the steps of (a)-1 removing the roots, twigs and leaves of kenaf, and (a)-2 drying the kenaf at room temperature for 30 to 45 days. It characterized in that it consists of a step and, (a)-3 cutting the dried kenaf into 50 to 60 cm.
바람직하게는, 본 발명의 상기 (a)단계와 상기 (b)단계 사이에 케나프 천연섬유를 제조하는 (d)단계를 더 포함하되, 상기 (d)단계는, (d)-1 절단된 케나프의 목피를 박피하는 단계와, (d)-2 상기 목피를 목피를 5 ~ 10cm 길이로 세절한 후 함수율이 5% 미만이 되도록 건조하는 단계와, (d)-3 세절 건조된 상기 목피를 10 ~ 150kgf/cm2 압력으로 30 ~ 45분간 압연하는 단계와, (d)-4 상기 압연된 목피를 정제수가 충전된 수조에 투입한 후 15 ~ 45일간 방치하는 단계와, (d)-5 수조에 방치된 상기 목피를 건져내어 탈수한 후 2 ~ 5mm 길이로 절단한 다음 열풍건조하여 케나프 천연섬유를 제조하는 단계로 이루어지고, 상기 (c)단계에서 상기 케나프 분말 100 중량부에 대하여, 상기 (d)단계에 제조된 케나프 천연섬유 5 ~ 30 중량부를 더 포함하여 성형되고,Preferably, it further comprises a step (d) of producing a kenaf natural fiber between the step (a) and the step (b) of the present invention, the step (d) is, (d)-1 cut Peeling the bark of Kenaf, (d)-2 mincing the bark to 5 to 10 cm long and drying the bark so that the moisture content is less than 5%, and (d)-3 minced bark Rolling at 10 to 150 kgf/cm 2 pressure for 30 to 45 minutes, (d)-4 adding the rolled bark to a tank filled with purified water and leaving it for 15 to 45 days, and (d)- 5 It consists of the step of preparing natural Kenaf fiber by removing the bark left in a water tank, dehydrating it, cutting it into a length of 2 to 5 mm, and drying it with hot air, and in step (c), 100 parts by weight of the kenaf powder On the other hand, the kenaf prepared in step (d) is molded further including 5 to 30 parts by weight,
상기 케나프 분말 100 중량부에 대하여, 케나프 섬유비드 5 ~ 7 중량부를 더 포함하여 성형되어지되,With respect to 100 parts by weight of the kenaf powder, the kenaf fiber beads are further formed to include 5 to 7 parts by weight,
상기 섬유비드는 상기 (d)단계에서 제조된 케나프 천연섬유 100 중량부에 대하여, 밀가루 20 ~ 25 중량부 및 정제수 10 ~ 15 중량부를 혼합한 후 2 ~ 3mm 구형으로 성형한 다음 실온에서 5 ~ 10일 건조하여 제조되는 것을 특징으로 한다.The fiber beads were mixed with 20 to 25 parts by weight of flour and 10 to 15 parts by weight of purified water based on 100 parts by weight of the natural Kenaf fiber prepared in step (d), and then molded into a 2 to 3 mm sphere, and then 5 to 3 mm at room temperature. It characterized in that it is manufactured by drying for 10 days.
바람직하게는, 본 발명의 상기 천연바인더는 밀가루 또는 옥수수 전분인 것을 특징으로 한다.Preferably, the natural binder of the present invention is characterized in that the flour or corn starch.
또한, 본 발명은 위 방법들 중 어느 한 방법에 의해 제조된 케나프의 목질부를 이용한 우드펠렛에 의해 달성될 수 있다.In addition, the present invention can be achieved by wood pellets using the woody part of the kenaf prepared by any one of the above methods.
이상과 같은 본 발명은 펠렛 보일러에 사용시 미세분진 발생이 적고 고발열량을 갖는 친환경 우드펠렛을 대량 제조할 수 있는 효과가 있다.The present invention as described above has the effect of being able to mass-produce eco-friendly wood pellets having less generation of fine dust and high heat generation when used in a pellet boiler.
이하, 본 발명의 실시예를 참조하여 설명하기로 한다.Hereinafter, it will be described with reference to an embodiment of the present invention.
1. 케나프의 뿌리, 잔가지 및 잎을 제거후 건조하기1. Remove the roots, twigs and leaves of Kenaf and dry it.
케나프의 뿌리, 잔가지 및 잎을 제거한 후 줄기 부분을 실온에서 30 ~ 45일간 건조한다. 여기서, 본 실시예의 케나프는 줄기 굵기가 적어도 10cm 이상이어야 한다. 또한, 케나프의 뿌리, 잔가지 및 잎을 제거한 후 건조하는 이유는 전체적인 중량이 현저하게 감소하여 이동, 적재 및 보관이 용이하며, 보관시 부패를 최소화하기 위함이다.After removing the roots, twigs and leaves of kenaf, the stems are dried at room temperature for 30 to 45 days. Here, the kenaf of this embodiment should have a stem thickness of at least 10 cm. In addition, the reason for drying after removing the roots, twigs and leaves of kenaf is that the overall weight is remarkably reduced, making it easy to move, load, and store, and to minimize spoilage during storage.
2. 케나프 절단 및 목피 박피하기2. Cutting the kenaf and peeling the bark
건조된 케나프를 50 ~ 60cm 길이로 절단한다.Cut the dried kenaf into 50 to 60 cm lengths.
그런 다음, 절단된 케나프의 목피를 박피한다.Then, peel off the skin of the cut kenaf.
3. 케나프 천연섬유 제조하기3. Making Kenaf Natural Fibers
목피를 5 ~ 10cm 길이로 세절한 후 함수율이 5% 미만이 되도록 건조한다.After cutting the bark into 5 ~ 10cm length, dry it so that the moisture content is less than 5%.
그런 다음, 세절 건조 목피를 10 ~ 150kgf/cm2 압력으로 30 ~ 45분간 압연한다.Then, the shredded dry bark is rolled for 30 to 45 minutes at a pressure of 10 to 150 kgf/cm 2 .
이어서, 압연된 목피를 정제수가 충전된 수조에 투입한 후 15 ~ 45일간 방치한다.Subsequently, the rolled bark is put into a water tank filled with purified water and left for 15 to 45 days.
이후, 수조에 방치된 목피를 건져내어 탈수한 후 2 ~ 5mm 길이로 절단한 다음 열풍건조하여 케나프 천연섬유를 제조한다Thereafter, the bark left in the water tank is removed, dehydrated, cut into 2 to 5 mm lengths, and then dried with hot air to produce kenaf natural fibers.
4. 케나프 분쇄하기4. Crushing Kenaf
케나프를 입도 1 ~ 8mm로 분쇄하여 케나프 분말을 제조한다.Kenaf powder is prepared by pulverizing the kenaf to a particle size of 1 to 8 mm.
여기서, 0.5mm 미만인 경우에는 분쇄에 따른 시간과 비용이 과다하게 소요되고 12mm 이상인 경우에는 추후 진행되는 교반, 성형 공정이 용이하지 못한 단점이 발생된다.Here, if it is less than 0.5mm, it takes excessive time and cost due to pulverization, and if it is more than 12mm, there is a disadvantage that the subsequent stirring and molding process are not easy.
5. 펠렛 제조하기5. Making pellets
케나프 분말 100 중량부에 대하여, 천연바인더 1 ~ 5 중량부 및 정제수 3 ~ 5 중량부를 혼합한 후 성형하여 펠렛을 제조한다. 여기서, 천연바인더는 밀가루 또는 옥수수전분이며, 펠렛의 규격은 지름 6 ~ 8mm이고, 길이 32mm이하이다.With respect to 100 parts by weight of kenaf powder, 1 to 5 parts by weight of a natural binder and 3 to 5 parts by weight of purified water are mixed and then molded to prepare a pellet. Here, the natural binder is wheat flour or corn starch, and the size of the pellets is 6 to 8 mm in diameter and less than 32 mm in length.
또한, 케나프 분말 100 중량부에 대하여, 케나프 천연섬유 5 ~ 30 중량부를 더 포함하여 성형될 수 있다. 여기서, 본 실시예의 케나프 천연섬유는 펠렛의 기계적 강도를 개선하고 쉽게 부서지는 것을 방지하기 위하여 제공된 것이다. 케나프 천연섬유가 3 중량부 미만인 경우에는 효과가 미비하며, 35 중량부 이상인 경우에는 성형이 용이하지 못한 단점이 발생한다.In addition, with respect to 100 parts by weight of the kenaf powder, it may be formed by further including 5 to 30 parts by weight of natural kenaf fibers. Here, the kenaf natural fiber of this embodiment is provided to improve the mechanical strength of the pellet and prevent it from being easily broken. If the natural Kenaf fiber is less than 3 parts by weight, the effect is insufficient, and if it is more than 35 parts by weight, it is difficult to mold.
천연바인더는 밀가루 또는 옥수수 전분이다.The natural binder is wheat flour or corn starch.
또한, 케나프 분말 100 중량부에 대하여, 케나프 섬유비드 5 ~ 7 중량부를 더 포함하여 성형될 수 있다. 섬유비드는 케나프 천연섬유 100 중량부에 대하여, 밀가루 20 ~ 25 중량부 및 정제수 10 ~ 15 중량부를 혼합한 후 2 ~ 3mm 구형으로 성형한 다음 실온에서 5 ~ 10일 건조하여 제조한다.In addition, with respect to 100 parts by weight of the kenaf powder, 5 to 7 parts by weight of kenaf fiber beads may be further included. Fiber beads are prepared by mixing 20 to 25 parts by weight of wheat flour and 10 to 15 parts by weight of purified water based on 100 parts by weight of natural Kenaf fiber, and then forming a 2 to 3 mm sphere and drying at room temperature for 5 to 10 days.
이상과 같은 본 실시예의 우드 펠렛 보일러에 사용시, 미세분진 발생이 매우 적고 4,300 ~ 6,500kcal/kg의 고발열량을 구현할 수 있는 특징이 있다.When used in the wood pellet boiler of this embodiment as described above, the generation of fine dust is very small, and a high calorific value of 4,300 to 6,500 kcal/kg can be realized.
이상과 같은 본 발명은 일 실시예에 한정되어 설명되었으나, 이에 한정되지 않고 본 발명의 기술적 사상을 토대로 변형되는 실시예들은 모두 본 발명의 권리범위에 속함이 분명하다.The present invention as described above has been described limited to one embodiment, but it is not limited thereto, and all embodiments modified based on the technical idea of the present invention belong to the scope of the present invention.
Claims (5)
(b) 절단된 케나프를 분쇄하여 케나프 분말을 제조하는 단계와;
(c) 상기 케나프 분말 100 중량부에 대하여, 천연바인더 1 ~ 5 중량부 및 정제수 3 ~ 5 중량부를 혼합한 후 성형하여 우드 펠렛을 제조하는 단계로 이루어지되,
상기 (a)단계와 상기 (b)단계 사이에 케나프 천연섬유를 제조하는 (d)단계를 더 포함하되,
상기 (d)단계는,
(d)-1 절단된 케나프의 목피를 박피하는 단계와,
(d)-2 상기 목피를 목피를 5 ~ 10cm 길이로 세절한 후 함수율이 5% 미만이 되도록 건조하는 단계와,
(d)-3 세절 건조된 상기 목피를 10 ~ 150kgf/cm2 압력으로 30 ~ 45분간 압연하는 단계와,
(d)-4 상기 압연된 목피를 정제수가 충전된 수조에 투입한 후 15 ~ 45일간 방치하는 단계와,
(d)-5 수조에 방치된 상기 목피를 건져내어 탈수한 후 2 ~ 5mm 길이로 절단한 다음 열풍건조하여 케나프 천연섬유를 제조하는 단계로 이루어지고,
상기 (c)단계에서 상기 케나프 분말 100 중량부에 대하여, 상기 (d)단계에서 제조된 케나프 천연섬유 5 ~ 30 중량부를 더 포함하여 성형되고,
상기 케나프 분말 100 중량부에 대하여, 케나프 섬유비드 5 ~ 7 중량부를 더 포함하여 성형되어지되,
상기 섬유비드는 상기 (d)단계에서 제조된 케나프 천연섬유 100 중량부에 대하여, 밀가루 20 ~ 25 중량부 및 정제수 10 ~ 15 중량부를 혼합한 후 2 ~ 3mm 구형으로 성형한 다음 실온에서 5 ~ 10일 건조하여 제조되는 것을 특징으로 하는 케나프의 목질부를 이용한 우드펠렛의 제조방법.
(a) removing the roots, twigs and leaves of kenaf and cutting them;
(b) pulverizing the cut kenaf to prepare kenaf powder;
(c) mixing 1 to 5 parts by weight of a natural binder and 3 to 5 parts by weight of purified water based on 100 parts by weight of the kenaf powder, followed by molding to produce wood pellets,
Further comprising a step (d) of producing natural Kenaf fibers between the step (a) and step (b),
The step (d),
(d)-1 peeling the bark of the cut kenaf, and
(d)-2 drying the bark so that the moisture content is less than 5% after cutting the bark into a length of 5 to 10 cm,
(d)-3 rolling the bark skin dried in thin pieces at a pressure of 10 to 150 kgf/cm 2 for 30 to 45 minutes, and
(d)-4 adding the rolled bark to a water tank filled with purified water and leaving it for 15 to 45 days; and
(d)-5 It consists of the step of preparing natural kenaf fibers by removing the bark left in a water tank, dehydrating it, cutting it into 2 to 5 mm lengths, and drying it with hot air,
In the step (c), based on 100 parts by weight of the kenaf powder, the kenaf natural fiber prepared in the step (d) is formed by further including 5 to 30 parts by weight,
With respect to 100 parts by weight of the kenaf powder, the kenaf fiber beads are further formed to include 5 to 7 parts by weight,
The fiber beads were mixed with 20 to 25 parts by weight of flour and 10 to 15 parts by weight of purified water based on 100 parts by weight of the natural Kenaf fiber prepared in step (d), and then molded into a 2 to 3 mm sphere, and then 5 to 3 mm at room temperature. Method for producing wood pellets using the woody part of kenaf, characterized in that produced by drying for 10 days.
상기 (a)단계는,
(a)-1 케나프의 뿌리, 잔가지 및 잎을 제거하는 단계와,
(a)-2 상기 케나프를 실온에서 30 ~ 45일간 건조하는 단계와,
(a)-3 건조된 상기 케나프를 50 ~ 60cm로 절단하는 단계로 이루어지는 것을 특징으로 하는 케나프의 목질부를 이용한 우드펠렛의 제조방법.
The method of claim 1,
The step (a),
(a)-1 removing the roots, twigs and leaves of kenaf, and
(a)-2 drying the kenaf at room temperature for 30 to 45 days, and
(a)-3 Method for producing wood pellets using the woody part of the kenaf, characterized in that comprising the step of cutting the dried kenaf into 50 ~ 60cm.
상기 천연바인더는 밀가루 또는 옥수수 전분인 것을 특징으로 하는 케나프의 목질부를 이용한 우드펠렛의 제조방법.
The method of claim 1,
The natural binder is a method for producing wood pellets using the woody part of kenaf, characterized in that wheat flour or corn starch.
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