JP2002020771A - Method for disposing waste wood - Google Patents
Method for disposing waste woodInfo
- Publication number
- JP2002020771A JP2002020771A JP2000203503A JP2000203503A JP2002020771A JP 2002020771 A JP2002020771 A JP 2002020771A JP 2000203503 A JP2000203503 A JP 2000203503A JP 2000203503 A JP2000203503 A JP 2000203503A JP 2002020771 A JP2002020771 A JP 2002020771A
- Authority
- JP
- Japan
- Prior art keywords
- waste wood
- waste
- wood
- treating
- treatment
- Prior art date
- 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.)
- Pending
Links
Classifications
-
- 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
-
- 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
-
- 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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/78—Recycling of wood or furniture waste
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、建設現場で発生す
る木材等の廃木材を送風羽口を介して高炉に装入して、
処理する方法に関する。The present invention relates to a method of charging waste wood such as wood generated at a construction site into a blast furnace through a tuyere.
How to process.
【０００２】[0002]
【従来の技術】建設現場等において発生する大量の廃木
材は、通常、その一部は燃料用材、製紙用材、または、
動物等の飼料として再使用され、大部分は埋め立て地等
に投棄されているのが現状である。廃木材には防腐剤と
して微量の銅、砒素、クロム等の金属が含まれており、
焼却処理した場合には、大気中または焼却灰中に上述し
た微量の銅、砒素、クロム等の金属が放出され、環境対
策上好ましくない。更に、埋め立て地等に投棄される場
合においても、上述した微量の銅、砒素、クロム等の金
属が滲出し、環境対策上好ましくなく、その大量処理方
法の開発が切望されている。2. Description of the Related Art A large amount of waste wood generated at a construction site or the like is usually partially used for fuel, paper or material.
At present, they are reused as feed for animals and the like, and most of them are dumped in landfills. Waste wood contains trace amounts of metals such as copper, arsenic and chromium as preservatives,
In the case of incineration, the above-mentioned trace amounts of metals such as copper, arsenic, and chromium are released into the atmosphere or incinerated ash, which is not preferable in terms of environmental measures. Furthermore, even when discarded in a landfill or the like, the above-mentioned trace amounts of metals such as copper, arsenic, and chromium are oozing out, which is not preferable in terms of environmental measures.
【０００３】このような背景の下、廃木材等を高炉等に
おいて処理する方法が試みられている。即ち、廃木材を
チップ状に加工し、送風羽口または炉頂から装入して、
廃木材を大量に処理しようとする方法である。これらの
方法は、チップ状に加工した廃木材を羽口等から高炉内
に燃料として吹き込むものである。[0003] Under such a background, a method of treating waste wood or the like in a blast furnace or the like has been attempted. That is, waste wood is processed into chips, and charged from the blast tuyere or furnace top,
This is a method to treat a large amount of waste wood. In these methods, waste wood processed into chips is blown as fuel from a tuyere or the like into a blast furnace.
【０００４】高炉では、通常、炉頂からコークスを銑鉄
１トン当り約５００ｋｇ装入し、炉下部の羽口から約１
２００℃の酸素富化空気を吹き込み、羽口先に降下した
コークスを燃焼させ、高温の還元ガスを発生させ銑鉄を
製造する。このコークスを製造するためには、原料炭を
必要とするが、原料炭は産地が限定されており、また燃
料用石炭よりも高価である。従って、高炉操業におい
て、高価なコークスの節約のために、代替燃料として、
羽口より各種燃料の吹き込みが行われている。この燃料
としては天然ガス、ナフサ等の気体燃料、重油、タール
等の液体燃料および微粉炭等の固体燃料が知られてい
る。気体燃料は高価であるため経済的でない。液体燃料
は羽口からの吹き込み後の広がりが狭く、燃焼性の面で
問題となり、吹き込み量が制約される。[0004] In a blast furnace, usually about 500 kg of coke is charged per ton of pig iron from the furnace top and about 1 kg from tuyeres at the bottom of the furnace.
The oxygen-enriched air at 200 ° C. is blown to burn the coke that has fallen to the tuyere tip, generating a high-temperature reducing gas to produce pig iron. Coking coal is required to produce this coke, but the coking coal is limited in its production area and is more expensive than fuel coal. Therefore, in blast furnace operation, as an alternative fuel, to save expensive coke,
Various fuel is injected from the tuyere. As this fuel, gas fuels such as natural gas and naphtha, liquid fuels such as heavy oil and tar, and solid fuels such as pulverized coal are known. Gaseous fuels are expensive and not economical. The liquid fuel spreads narrowly after being blown from the tuyere, which is problematic in terms of flammability, and the blowing amount is restricted.
【０００５】一方微粉炭の供給方法としては、これを一
旦重油等の液体燃料と混合しスラリー状にしたものを吹
き込むか、あるいは微粉炭をそのまま気体輸送し羽口か
ら吹き込む方法がとられている。スラリー状にしたもの
を吹き込む方法は、スラリーの安定性に問題があり、近
年では上述した微粉炭を気体輸送し高炉羽口から炉内に
吹き込む方法が主流となっている。On the other hand, as a method of supplying pulverized coal, a method of once mixing it with a liquid fuel such as heavy oil and making it into a slurry and then blowing it, or a method of transporting pulverized coal as it is and blowing it through a tuyere is used. . The method of injecting the slurry is problematic in terms of the stability of the slurry, and in recent years, the above-mentioned method of transporting pulverized coal by gas and injecting it into the furnace from the blast furnace tuyere has become mainstream.
【０００６】従って、上述したように、チップ状に加工
した廃木材が羽口等から高炉内に燃料として吹き込まれ
る。しかしながら、チップ状に加工した廃木材を高炉等
の吹込み燃料として使用する場合、次のような解決すべ
き問題点があることが明らかとなった。チップ状に加工
した廃木材は、燃焼カロリーが低く、高炉内の燃焼温度
に影響を及ぼし、高炉操業に悪影響を及ぼす。更に、チ
ップ状に加工した廃木材は搬送性や流動性が悪く、燃料
として用いる際の取り扱いに問題があることが判明し
た。Accordingly, as described above, waste wood processed into chips is blown into the blast furnace from the tuyere or the like as fuel. However, when waste wood processed into chips is used as a blowing fuel for a blast furnace or the like, it has become clear that there are the following problems to be solved. Waste wood processed into chips has a low calorie burn, affects the combustion temperature in the blast furnace, and adversely affects the operation of the blast furnace. Further, it has been found that waste wood processed into chips has poor transportability and fluidity, and has a problem in handling when used as fuel.
【０００７】従って、このような問題を解決しない限
り、チップ状に加工した廃木材を高炉等の吹込み燃料と
して使用することは事実上不可能であり、廃棄物たる廃
木材の大量処理と有効利用という利点が低減する。Therefore, unless such a problem is solved, it is practically impossible to use waste wood processed into chips as a fuel for blowing into a blast furnace or the like. The advantage of utilization is reduced.
【０００８】また、高炉に燃料としてチップ状に加工し
た廃木材を吹き込むためには、還元性等を確保する必要
がある。更に、チップ状に加工した廃木材は不規則で角
ばった形状をしているため、高炉に気送する際の流動
性、搬送性が悪く、サイロの切出部や気送管系の途中で
詰まりを生じ易いという問題もあることが判明した。In order to blow waste wood processed into chips into the blast furnace as fuel, it is necessary to ensure reducibility and the like. Furthermore, since the waste wood processed into chips has an irregular and square shape, the fluidity and transportability when pneumatically fed to the blast furnace are poor, and it may occur in the silo cutout or in the middle of the pneumatic piping system. It has been found that there is also a problem that clogging is likely to occur.
【０００９】[0009]
【発明が解決しょうとする課題】上述したように、従来
の方法によると、チップ状に加工した廃木材は、燃焼カ
ロリーが低く、高炉内の燃焼温度に変化をもたらし、高
炉操業に悪影響を及ぼす。更に、チップ状に加工した廃
木材は搬送性や流動性が悪く、燃料として用いる際の取
り扱いに問題がある。As described above, according to the conventional method, waste wood processed into chips has low combustion calories, changes the combustion temperature in the blast furnace, and adversely affects the operation of the blast furnace. . Furthermore, waste wood processed into chips has poor transportability and fluidity, and has a problem in handling when used as fuel.
【００１０】従って、この発明の目的は、従来の問題点
を解決して、廃木材の燃焼性および気送性を高め、高炉
に装入して処理する、廃木材の処理方法を提供すること
にある。Accordingly, an object of the present invention is to provide a method for treating waste wood, which solves the conventional problems, enhances the combustibility and pneumaticity of the waste wood, and charges and treats the waste wood in a blast furnace. It is in.
【００１１】[0011]
【課題を解決するための手段】本発明者は、上述した従
来技術の問題点を解決すべく鋭意研究を重ねた。その結
果、廃木材の燃焼カロリーを高めるか、または、比表面
積を大きくすることによって燃焼性を高めることがで
き、併せて気送性を高めることによって、高炉に装入し
た際に、補助燃料として、廃木材を大量に処理すること
ができることが判明した。即ち、例えば、廃木材を所定
の粉砕粒度に粉砕し、粒状の廃プラスチックを混合する
ことによって、燃焼カロリーを高めると共に、気送性が
向上することを知見した。Means for Solving the Problems The present inventor has made intensive studies to solve the above-mentioned problems of the prior art. As a result, it is possible to increase the calorific value of waste wood or increase the specific surface area to increase the combustibility. It turned out that a large amount of waste wood can be treated. That is, for example, it has been found that, by pulverizing waste wood to a predetermined pulverized particle size and mixing the granular waste plastic, the calorific value of combustion is increased and the pneumatic property is improved.
【００１２】更に、炉のレースウエイ内において燃焼性
を向上させるためには、粒状の廃木材、および、混合す
る粒状の廃プラスチックの粒の強度または粒径の何れか
一方を制御するだけでは、レースウエイ内に到達するこ
とができなかったり、レースウエイに到達することがで
きても、熱風中を飛翔中に***・崩壊して、燃焼性が低
下することが判明した。即ち、強度および粒径の両方
を、強度に関しては、炉吹き込みに際して、炉のレース
ウエイ内の所定領域に到達可能な強度に制御し、そし
て、粒径に関しては、限界速度以上の速度が可能な粒径
に制御することによって、粒状の廃木材のレースウエイ
内における燃焼性を向上させることができることを知見
した。Further, in order to improve the combustibility in the furnace raceway, it is necessary to control only one of the strength and the particle size of the granular waste wood and the granular waste plastic to be mixed. It was found that even if it could not reach the raceway or could reach the raceway, it split and collapsed while flying in hot air, resulting in reduced flammability. That is, both the strength and the particle size are controlled such that the strength can reach a predetermined area in the furnace raceway when the furnace is blown, and the speed can be higher than the limit speed with respect to the particle size. By controlling the particle size, it was found that the combustibility of granular waste wood in the raceway can be improved.
【００１３】この発明は、上記知見に基づいてなされた
ものであって、この発明の廃木材の処理方法の第１の態
様は、廃木材を処理して、燃焼カロリーおよび／または
比表面積によって表される燃焼性、ならびに、気送性を
高め、高炉に装入する廃木材の処理方法である。The present invention has been made on the basis of the above-mentioned findings, and a first aspect of the method for treating waste wood according to the present invention is to treat waste wood and express the calorie and / or specific surface area by combustion calories. This is a method of treating waste wood to be charged into a blast furnace by improving the flammability and pneumaticity of the blast furnace.
【００１４】この発明の廃木材の処理方法の第２の態様
は、前記処理が、前記廃木材を０．５〜１０ｍｍの粉砕
粒度の大きさに粉砕し、粒状の廃プラスチックを１０／
９０〜９０／１０の範囲内の混合比（廃木材／廃プラス
チック材の重量比）で混合することからなることを特徴
とする廃木材の処理方法である。[0014] In a second aspect of the method for treating waste wood according to the present invention, in the treatment, the waste wood is crushed to a crushed particle size of 0.5 to 10 mm, and granular waste plastic is reduced to 10/10.
A method for treating waste wood, comprising mixing at a mixing ratio (weight ratio of waste wood / waste plastic material) in the range of 90 to 90/10.
【００１５】この発明の廃木材の処理方法の第３の態様
は、前記処理が、前記廃木材を平均粒度１０〜１００μ
ｍの大きさに粉砕することからなることを特徴とする廃
木材の処理方法である。[0015] In a third aspect of the method for treating waste wood according to the present invention, the treatment is preferably such that the waste wood has an average particle size of 10 to 100 µm.
It is a method for treating waste wood, characterized by pulverizing to a size of m.
【００１６】この発明の廃木材の処理方法の第４の態様
は、前記処理が、前記廃木材を０．５〜１０ｍｍの粉砕
粒度の大きさに粉砕し、間接加熱方式によって８００℃
以上の温度で炭化することからなっていることを特徴と
する廃木材の処理方法である。In a fourth aspect of the method for treating waste wood according to the present invention, in the treatment, the waste wood is crushed to a crushed particle size of 0.5 to 10 mm, and the waste wood is crushed at 800 ° C. by an indirect heating method.
This is a method for treating waste wood, which comprises carbonizing at the above temperature.
【００１７】この発明の廃木材の処理方法の第５の態様
は、前記処理が、前記廃木材を１０μｍ〜１０ｍｍの粉
砕粒度の大きさに粉砕し、タール系油、石油系油、廃
油、廃食油、廃潤滑油の少なくとも１つからなる油を１
０／９０〜９０／１０の範囲内の混合比（廃木材／油の
重量比）で混合することからなることを特徴とする廃木
材の処理方法である。In a fifth aspect of the method for treating waste wood according to the present invention, the treatment comprises crushing the waste wood to a particle size of 10 μm to 10 mm, tar-based oil, petroleum-based oil, waste oil, waste Oil consisting of at least one of cooking oil and waste lubricating oil
A method of treating waste wood, comprising mixing at a mixing ratio (weight ratio of waste wood / oil) in the range of 0/90 to 90/10.
【００１８】この発明の廃木材の処理方法の第６の態様
は、前記処理が、前記廃木材を０．５〜１０ｍｍの粉砕
粒度の大きさに粉砕し、５００〜１２００℃の間の温度
に、昇温速度１０００℃／秒以上で１〜１０秒間滞留さ
せて、前記廃木材を急速熱分解させることからなること
を特徴とする廃木材の処理方法である。In a sixth aspect of the method for treating waste wood according to the present invention, the treatment comprises crushing the waste wood to a crushed particle size of 0.5 to 10 mm, and reducing the temperature to a temperature of 500 to 1200 ° C. A method of treating waste wood, wherein the waste wood is kept at a heating rate of 1000 ° C./sec or more for 1 to 10 seconds to rapidly pyrolyze the waste wood.
【００１９】この発明の廃木材の処理方法の第７の態様
は、前記処理に引き続き、更に、間接加熱方式によって
８００℃以上の温度で炭化することからなっていること
を特徴とする廃木材の処理方法である。A seventh aspect of the method for treating waste wood according to the present invention is characterized in that the waste wood is carbonized at a temperature of 800 ° C. or more by an indirect heating system following the above treatment. Processing method.
【００２０】この発明の廃木材の処理方法の第８の態様
は、前記処理に引き続き、更に、粒状の廃プラスチック
を１０／９０〜９０／１０の範囲内の混合比（廃木材／
廃プラスチック材の重量比）で混合することからなるこ
とを特徴とする廃木材の処理方法である。In an eighth aspect of the method for treating waste wood of the present invention, following the above treatment, a granular waste plastic is further mixed with a mixture ratio (waste wood / waste wood) within a range of 10/90 to 90/10.
(Weight ratio of waste plastic material).
【００２１】この発明の廃木材の処理方法の第９の態様
は、前記処理に引き続き、更に、粒状の廃プラスチック
を１０／９０〜９０／１０の範囲内の混合比（廃木材／
廃プラスチック材の重量比）で混合することからなるこ
とを特徴とする廃木材の処理方法である。According to a ninth aspect of the method for treating waste wood of the present invention, following the above-mentioned treatment, a granular waste plastic is further mixed at a mixing ratio within the range of 10/90 to 90/10 (waste wood /
(Weight ratio of waste plastic material).
【００２２】この発明の廃木材の処理方法の第１０の態
様は、前記廃木材および前記廃プラスチックを混合し、
このように混合した前記廃木材および前記廃プラスチッ
クをすりつぶし、および、押出し工程を含む造粒機によ
って、表面が溶融固化した粒状体を形成することを特徴
とする廃木材の処理方法である。According to a tenth aspect of the method for treating waste wood of the present invention, the waste wood and the waste plastic are mixed,
A method for treating waste wood, characterized in that the waste wood and the waste plastic mixed as described above are ground and formed into a granular material whose surface is melted and solidified by a granulator including an extrusion step.
【００２３】この発明の廃木材の処理方法の第１１の態
様は、前記処理に引き続き、更に、粉砕された前記廃木
材を微粉炭と混合することを特徴とする廃木材の処理方
法である。An eleventh aspect of the method for treating waste wood according to the present invention is a waste wood treatment method characterized by further comprising mixing the pulverized waste wood with pulverized coal after the above-mentioned treatment.
【００２４】この発明の廃木材の処理方法の第１２の態
様は、前記処理が、前記廃木材を０．５〜１０ｍｍの粉
砕粒度の大きさに粉砕し、間接加熱方式によって５００
℃以下の温度で炭化することからなっていることを特徴
とするの廃木材の処理方法である。According to a twelfth aspect of the method for treating waste wood according to the present invention, in the treatment, the waste wood is crushed to a crushed particle size of 0.5 to 10 mm, and the crushed wood is crushed by an indirect heating method.
A method for treating waste wood, comprising carbonizing at a temperature of not more than ° C.
【００２５】[0025]
【発明の実施の形態】本発明の廃木材の処理方法の１つ
の態様を詳細に説明する。この発明の廃木材の処理方法
は、廃木材を処理して、燃焼カロリーおよび／または比
表面積によって表される燃焼性、ならびに、気送性を高
め、高炉に装入する廃木材の処理方法である。廃木材の
燃焼性は、図１に示すように、燃焼カロリーおよび／ま
たは比表面積によってきまる。従って、燃焼カロリーを
高めるための廃木材の処理を行うとよい。更に、比表面
積を高める、即ち、例えば、多孔質（ポーラス）状の形
状になるように廃木材を処理するとよい。BEST MODE FOR CARRYING OUT THE INVENTION One embodiment of the method for treating waste wood of the present invention will be described in detail. The method for treating waste wood according to the present invention is a method for treating waste wood, which is used to treat waste wood to enhance the combustibility represented by the calories burned and / or the specific surface area and the pneumaticity, and to be charged into a blast furnace. is there. As shown in FIG. 1, the combustibility of waste wood depends on the calories burned and / or the specific surface area. Therefore, it is advisable to treat waste wood to increase the calories burned. Furthermore, the waste wood may be treated to increase the specific surface area, that is, for example, to obtain a porous shape.
【００２６】この発明の廃木材の処理方法において、上
述した廃木材の燃焼性、ならびに、気送性を高めるため
の処理が、廃木材を０．５〜１０ｍｍの粉砕粒度の大き
さに粉砕し、粒状の廃プラスチックを１０／９０〜９０
／１０の範囲内の混合比（廃木材／廃プラスチック材の
重量比）で混合することからなっていてもよい。なお、
木材のアスペクト比は一般的に高いので、粉砕粒度は、
所定の範囲内のアスペクト比のものを対象とする。廃木
材の粉砕粒度の大きさが０．５ｍｍ未満では、レースウ
エイ内に到達することができなかったり、レースウエイ
に到達することができても、熱風中を飛翔中に***・崩
壊して、燃焼性が低下する。一方、廃木材の粉砕粒度の
大きさが１０ｍｍを超えると、気流輸送時の固気比（粒
子と気送用空気の混合比）が低下するため、炉内温度の
低下を招き高炉操業が不安定になる。In the method for treating waste wood according to the present invention, the above-mentioned treatment for improving the combustibility of the waste wood and the pneumaticity is performed by pulverizing the waste wood to a particle size of 0.5 to 10 mm. , 10 / 90-90 granular waste plastic
It may consist of mixing at a mixing ratio (weight ratio of waste wood / waste plastic material) within the range of / 10. In addition,
Since the aspect ratio of wood is generally high, the crushed particle size is
The target object has an aspect ratio within a predetermined range. If the size of the crushed particle size of the waste wood is less than 0.5 mm, it cannot reach the raceway, or even if it can reach the raceway, it splits and collapses while flying in hot air, Flammability decreases. On the other hand, if the crushed particle size of the waste wood exceeds 10 mm, the solid-gas ratio (mixing ratio of particles and air for air supply) during pneumatic transportation is reduced, so that the furnace temperature is reduced and blast furnace operation is impaired. Become stable.
【００２７】粒状の廃プラスチックを混合することによ
って、廃木材の燃焼カロリーを高くするとともに、気送
性を高めることができる。混合比（廃木材／廃プラスチ
ック材の重量比）が１０／９０未満では、高炉操業に問
題はないが、廃木材の処理量が少なくなる。一方、混合
比（廃木材／廃プラスチック材の重量比）が９０／１０
を超えると、燃焼カロリーが不十分であり、また気送性
の改善も効果が低い。By mixing the granular waste plastic, the calories burned of the waste wood can be increased, and the pneumatic property can be enhanced. If the mixing ratio (weight ratio of waste wood / waste plastic material) is less than 10/90, there is no problem in blast furnace operation, but the amount of waste wood to be treated is reduced. On the other hand, the mixing ratio (weight ratio of waste wood / waste plastic material) is 90/10
If it exceeds, the calorie burned is insufficient, and the improvement in air supply is also ineffective.
【００２８】この発明の廃木材の処理方法において、上
述した廃木材の燃焼性、ならびに、気送性を高めるため
の処理が、廃木材を平均粒度１０〜１００μｍの大きさ
に粉砕することからなっていてもよい。廃木材を平均粒
度１０〜１００μｍの大きさに粉砕することによって、
廃木材の比表面積を高めることができるので、燃焼性を
高めることが出きる。また、粉砕粒度をこの範囲の大き
さにすることによって、アスペクト比が小さくなるの
で、気送性も高めることができる。In the method for treating waste wood according to the present invention, the above-described treatment for improving the combustibility of the waste wood and the pneumatic property comprises crushing the waste wood to a size having an average particle size of 10 to 100 μm. May be. By grinding waste wood to a size of average particle size 10 to 100 μm,
Since the specific surface area of the waste wood can be increased, the combustibility can be improved. Further, by setting the pulverized particle size in this range, the aspect ratio is reduced, so that the pneumatic property can be improved.
【００２９】この発明の廃木材の処理方法において、上
述した廃木材の燃焼性、ならびに、気送性を高めるため
の処理が、廃木材を０．５〜１０ｍｍの粉砕粒度の大き
さに粉砕し、間接加熱方式によって８００℃以上の温度
で炭化することからなっていてもよい。即ち、粉砕粒度
の大きさを０．５〜１０ｍｍに制御し、８００℃以上の
高い温度で、酸素を遮断して、加熱して炭化する。粉砕
粒度の大きさが０．５ｍｍ未満では、８００℃以上の高
い温度で、酸素を遮断して、加熱して炭化しても、粒度
が小さく、上述したように、レースウエイ内に到達する
ことができなかったり、レースウエイに到達することが
できても、熱風中を飛翔中に***・崩壊して、燃焼性が
低下する。一方、廃木材の粉砕粒度の大きさが１０ｍｍ
を超えると、８００℃以上の高い温度で、酸素を遮断し
て、加熱して炭化しても、気流輸送時の固気比（粒子と
気送用空気の混合比）が低下するため、炉内温度の低下
を招き高炉操業が不安定になる。In the method for treating waste wood according to the present invention, the treatment for improving the combustibility of the waste wood and the pneumatic property is such that the waste wood is pulverized to a particle size of 0.5 to 10 mm. Alternatively, carbonization may be performed at a temperature of 800 ° C. or more by an indirect heating method. That is, the size of the pulverized particle size is controlled to 0.5 to 10 mm, and at a high temperature of 800 ° C. or higher, oxygen is cut off, and heating is performed to carbonize. If the size of the pulverized particle size is less than 0.5 mm, the particle size is small even if carbonized by heating at a high temperature of 800 ° C. or higher while blocking oxygen and reaching the raceway as described above. However, even if it cannot reach the raceway, it breaks and collapses while flying in hot air, and the flammability decreases. On the other hand, the size of the crushed particle size of the waste wood is 10 mm
If the temperature is higher than 800 ° C., the solid-gas ratio (mixing ratio of particles and air for pneumatics) at the time of pneumatic transportation is reduced even if oxygen is cut off and carbonized by heating at a high temperature of 800 ° C. or more. The blast furnace operation becomes unstable due to a decrease in the internal temperature.
【００３０】この発明の廃木材の処理方法において、上
述した廃木材の燃焼性、ならびに、気送性を高めるため
の処理が、廃木材を１０μｍ〜１０ｍｍの粉砕粒度の大
きさに粉砕し、タール系油、石油系油、廃油、廃食油、
廃潤滑油の少なくとも１つからなる油を１０／９０〜９
０／１０の範囲内の混合比（廃木材／油の重量比）で混
合することからなっていてもよい。In the method for treating waste wood according to the present invention, the treatment for improving the combustibility of the waste wood and the pneumatic property is such that the waste wood is pulverized to a particle size of 10 μm to 10 mm, Oil, petroleum oil, waste oil, waste cooking oil,
Oil consisting of at least one waste lubricating oil
It may consist of mixing at a mixing ratio (waste wood / oil weight ratio) in the range of 0/10.
【００３１】即ち、廃木材の粒度の大きさを上述した範
囲内に制御して、油を混合する。油を混合することによ
って、燃焼カロリーを高めることができる。廃木材を１
０μｍ〜１０ｍｍの粉砕粒度の大きさに粉砕する理由
は、上述したと同様である。油を１０／９０〜９０／１
０の範囲内の混合比（廃木材／油の重量比）で混合する
理由は、混合比（廃木材／油の重量比）が１０／９０で
は、高炉操業に問題はないが、廃木材の処理量が少なく
なる。一方、混合比（廃木材／油の重量比）が９０／１
０を超えると、燃焼カロリーが低く、炉内温度の低下を
招く。また、気送性の改善効果も低い。That is, the oil is mixed while controlling the size of the particle size of the waste wood within the above-mentioned range. By mixing the oil, the calories burned can be increased. 1 waste wood
The reason for pulverization to a particle size of 0 μm to 10 mm is the same as described above. Oil is 10 / 90-90 / 1
The reason for mixing at a mixing ratio (waste wood / oil weight ratio) within the range of 0 is that if the mixing ratio (waste wood / oil weight ratio) is 10/90, there is no problem in blast furnace operation, Processing volume is reduced. On the other hand, the mixing ratio (waste wood / oil weight ratio) is 90/1.
If it exceeds 0, the calories burned are low, and the furnace temperature is lowered. Further, the effect of improving the air transportability is low.
【００３２】更に、この発明の廃木材の処理方法におい
て、上述した廃木材の燃焼性、ならびに、気送性を高め
るための処理が、廃木材を０．５〜１０ｍｍの粉砕粒度
の大きさに粉砕し、５００〜１２００℃の間の温度に、
昇温速度１０００℃／秒以上で１〜１０秒間滞留させ
て、前記廃木材を急速熱分解させることからなっていて
もよい。５００〜１２００℃の間の温度に、昇温速度１
０００℃以上で１〜１０秒間滞留させる理由は、急速に
昇温することにより、内在する揮発成分が瞬時に揮散
し、粒子が発泡して新たな気孔が形成され、比表面積が
増大するからである。更に、上述したように、廃木材を
平均粒度１０〜１００μｍの大きさに粉砕した処理に引
き続き、更に、間接加熱方式によって８００℃以上の温
度で炭化してもよい。Further, in the method for treating waste wood according to the present invention, the above-mentioned treatment for improving the combustibility of the waste wood and the pneumaticity reduces the waste wood to a size of 0.5 to 10 mm. Crushed to a temperature between 500 and 1200 ° C.
The waste wood may be kept at a heating rate of 1000 ° C./sec or more for 1 to 10 seconds to rapidly pyrolyze the waste wood. A temperature rising rate of 1 to a temperature between 500 and 1200 ° C.
The reason for staying at 000 ° C. or higher for 1 to 10 seconds is that, by rapidly raising the temperature, the internal volatile components volatilize instantaneously, the particles foam, new pores are formed, and the specific surface area increases. is there. Further, as described above, following the treatment of pulverizing the waste wood to a size having an average particle size of 10 to 100 μm, the waste wood may be further carbonized at a temperature of 800 ° C. or more by an indirect heating method.
【００３３】更に、廃木材を０．５〜１０ｍｍの粉砕粒
度の大きさに粉砕し、間接加熱方式によって８００℃以
上の温度で炭化する処理に引き続き、更に、粒状の廃プ
ラスチックを１０／９０〜９０／１０の範囲内の混合比
（廃木材／廃プラスチック材の重量比）で混合してもよ
い。更に、廃木材を平均粒度１０〜１００μｍの大きさ
に粉砕する処理に引き続き、更に、粒状の廃プラスチッ
クを１０／９０〜９０／１０の範囲内の混合比（廃木材
／廃プラスチック材の重量比）で混合してもよい。Further, the waste wood is crushed to a crushed particle size of 0.5 to 10 mm, followed by carbonization at a temperature of 800 ° C. or higher by an indirect heating method. Mixing may be performed at a mixing ratio (weight ratio of waste wood / waste plastic material) in the range of 90/10. Further, following the treatment of pulverizing the waste wood to an average particle size of 10 to 100 μm, the granular waste plastic is further mixed at a mixing ratio in the range of 10/90 to 90/10 (weight ratio of waste wood / waste plastic material). ).
【００３４】この発明の廃木材の処理方法によると、歩
留まりよく粒子をレースウエイ内に投入することがで
き、レースウエイ内における粒子の平均的な滞留時間を
長くして燃焼率を向上させることができる。更に、ラン
スから吹き込まれた直後の熱風によって急速に加熱され
て、粒が***、崩壊等によって細粒化が生じ、ガス流れ
に同伴してレースウエイ外に飛び出す細粒の割合が増加
して、燃焼率が低下することを防止士することができ
る。According to the method for treating waste wood of the present invention, particles can be introduced into the raceway with high yield, and the average residence time of the particles in the raceway can be increased to improve the combustion rate. it can. Furthermore, the particles are rapidly heated by the hot air immediately after being blown from the lance, and the particles are fragmented, disintegration and the like are caused to become finer, and the proportion of the fine particles that fly out of the raceway along with the gas flow increases, It is possible to prevent the burning rate from decreasing.
【００３５】更に、この発明の廃木材の処理方法におい
て、上述した廃木材および廃プラスチックを混合し、こ
のように混合した廃木材および廃プラスチックをすりつ
ぶし、および、押出し工程を含む造粒機によって、表面
が溶融固化した粒状体を形成してもよい。この処理によ
ると、発熱量、比表面積が低く、高炉内における高温ガ
ス化性能が悪く、更に、粉砕時のアスペクト比が高く、
気流輸送性が悪く、閉塞等のトラブルの原因になる廃木
材を、廃プラスチックを混合し、すりつぶし、押出しに
よって、表面が溶融固化した粒状体に形成するので、発
熱量が向上し、比表面積が向上して高温ガス化特性が付
与され、更に、φ５〜１０ｍｍに造粒されるので、気流
輸送性が改善する。木材、石炭、および、上述した粒状
体の特性を図２に示す。Further, in the method for treating waste wood of the present invention, the above-mentioned waste wood and waste plastic are mixed, and the waste wood and waste plastic thus mixed are ground by a granulator including a step of extrusion. A granular material whose surface is melt-solidified may be formed. According to this treatment, the calorific value, the specific surface area is low, the high-temperature gasification performance in the blast furnace is poor, and the aspect ratio at the time of pulverization is high,
Waste wood, which has poor air transport properties and causes troubles such as blockage, is mixed with waste plastic, ground and extruded to form granules whose surface has been melted and solidified, so the calorific value is improved and the specific surface area is increased. The high temperature gasification property is imparted and the granulation is performed to a diameter of 5 to 10 mm, so that the airflow transportability is improved. FIG. 2 shows the characteristics of wood, coal, and the above-mentioned granular material.
【００３６】更に、この発明の廃木材の処理方法におい
て、廃木材の粉砕処理に引き続き、更に、１０〜１００
μｍの大きさに粉砕された廃木材を微粉炭と混合しても
よい。混合に際しては、微粉炭粉砕装置等に装入して、
混合する。Further, in the method for treating waste wood according to the present invention, the pulverizing treatment of the waste wood is further continued for 10 to 100 hours.
Waste wood ground to a size of μm may be mixed with pulverized coal. At the time of mixing, it is charged into a pulverized coal pulverizer, etc.
Mix.
【００３７】更に、この発明の廃木材の処理方法におい
て、上述した廃木材を０．５〜１０ｍｍの粉砕粒度の大
きさに粉砕し、間接加熱方式によって５００℃以下の温
度で炭化してもよい。炭化に際しては、空気を制限して
木材を加熱し、木炭収率、炭素含有量、ヨウ素吸着量、
水蒸気吸着量、揮発分量、発熱量を考慮して、所望の比
表面積、発熱量を得るように行う。この発明において、
主として廃木材を対象として説明したが、木材全般に関
しても、上述したと全く同様の処理を行うことができ
る。Further, in the method for treating waste wood according to the present invention, the above-mentioned waste wood may be ground to a size of 0.5 to 10 mm and the carbonized at a temperature of 500 ° C. or less by an indirect heating method. . At the time of carbonization, the wood is heated by restricting air, charcoal yield, carbon content, iodine adsorption amount,
Taking into consideration the amount of water vapor adsorption, the amount of volatile components, and the amount of heat generation, the process is performed so as to obtain the desired specific surface area and the amount of heat generation. In the present invention,
Although the description has been made mainly on waste wood, the same processing as described above can be performed on wood in general.
【００３８】[0038]
【実施例】この発明の方法を、実施例によって更に詳細
に説明する。 実施例１ 廃木材を粉砕して、０．５〜１０ｍｍの粒度の大きさに
調製した。更に、φ６×１０ｍｍの大きさの表面が溶融
固化した廃プラスチックを調製した。このように調製し
た廃木材および廃プラスチックを４０／６０の混合比
（廃木材／廃プラスチック材の重量比）で混合した。こ
のように混合した廃木材／廃プラスチック材を、気送供
給設備を経て、操業中の高炉羽口から吹き込んで設備内
の詰まり等のトラブルの発生状況を調べた。即ち、貯留
サイロに装入された上述した廃木材／廃プラスチック材
をサイロから定量的に切出し、これを気送供給設備まで
移送し、気送供給設備から下記条件で高炉羽口部に廃木
材／廃プラスチック材を気送し、炉内に吹き込んだ。 気送ガス：空気 気送ガス吹込み量：１２００Ｎｍ3／ｈｒ 廃木材／廃プラスチック材：６２．５ｋｇ／ｍｉｎ 固気比：２．４ｋｇ／ｋｇThe method of the present invention will be described in more detail with reference to examples. Example 1 Waste wood was pulverized to a particle size of 0.5 to 10 mm. Further, a waste plastic having a surface having a size of φ6 × 10 mm was melted and solidified. The waste wood and waste plastic thus prepared were mixed at a mixing ratio of 40/60 (weight ratio of waste wood / waste plastic material). The waste wood / waste plastic material thus mixed was blown from the tuyere during operation through the pneumatic supply facility, and the occurrence of troubles such as clogging in the facility was examined. That is, the above-mentioned waste wood / waste plastic material charged in the storage silo is quantitatively cut out from the silo, transferred to a pneumatic supply facility, and discharged from the pneumatic supply facility to the tuyere of the blast furnace under the following conditions. / The waste plastic material was pneumatically blown into the furnace. Pneumatic gas: air Pneumatic gas injection amount: 1200 Nm 3 / hr Waste wood / Waste plastic material: 62.5 kg / min Solid-gas ratio: 2.4 kg / kg
【００３９】（ｂ）このときの高炉操業条件は次の通り
であった。 出銑量：９０００ｔ／日 送風量：７２６０Ｎｍ3／ｈｒ 酸素富化率：４％ コークス比：４４７ｋｇ／ｔ．ｐｉｇ 微粉炭吹込み量：１００ｋｇ／ｔ．ｐｉｇ この発明によって処理された廃木材の吹込み量：１０ｋ
ｇ／ｔ．ｐｉｇ上述した廃木材の炉内吹込みを２日間実
施した。(B) The blast furnace operating conditions at this time were as follows. Tapping rate: 9000 t / day Blowing rate: 7260 Nm 3 / hr Oxygen enrichment ratio: 4% Coke ratio: 447 kg / t. pig Pulverized coal injection amount: 100 kg / t. pig Injection amount of waste wood treated according to the present invention: 10k
g / t. pig The above-mentioned waste wood was blown into the furnace for 2 days.
【００４０】その結果、廃木材は、９５％以上の高い燃
焼性を示した。更に、上述した本発明の範囲内の廃木材
においては、高炉の操業自体にも全く支障は生じなかっ
た。As a result, the waste wood exhibited a high flammability of 95% or more. Further, with the above-mentioned waste wood within the scope of the present invention, the operation of the blast furnace itself did not suffer at all.
【００４１】実施例２ 廃木材を粉砕して、平均粒度１０〜１００μｍの大きさ
に調製した。このように調製した廃木材を、気送供給設
備を経て、操業中の高炉羽口から吹き込んで設備内の詰
まり等のトラブルの発生状況を調べた。即ち、貯留サイ
ロに装入された上述した廃木材をサイロから定量的に切
出し、これを気送供給設備まで移送し、気送供給設備か
ら下記条件で高炉羽口部に廃木材／廃プラスチック材を
気送し、炉内に吹き込んだ。 気送ガス：空気 気送ガス吹込み量：１２００Ｎｍ3／ｈｒ 廃木材：６２．５ｋｇ／ｍｉｎ 固気比：２．４ｋｇ／ｋｇExample 2 Waste wood was pulverized to have an average particle size of 10 to 100 μm. The waste wood thus prepared was blown from the tuyere during operation through a pneumatic supply facility, and the occurrence of troubles such as clogging in the facility was examined. That is, the above-mentioned waste wood loaded in the storage silo is quantitatively cut out from the silo, transferred to a pneumatic supply facility, and discharged from the pneumatic supply facility to the tuyere of the blast furnace under the following conditions. Was blown into the furnace. Pneumatic gas: air Blowing gas blowing amount: 1200 Nm 3 / hr Waste wood: 62.5 kg / min Solid-gas ratio: 2.4 kg / kg
【００４２】（ｂ）このときの高炉操業条件は次の通り
であった。 出銑量：９０００ｔ／日 送風量：７２６０Ｎｍ3／ｈｒ 酸素富化率：４％ コークス比：４４７ｋｇ／ｔ．ｐｉｇ 微粉炭吹込み量：１００ｋｇ／ｔ．ｐｉｇ 廃木材の吹込み量：１０ｋｇ／ｔ．ｐｉｇ 上述した廃木材の炉内吹込みを２日間実施した。(B) The blast furnace operating conditions at this time were as follows. Tapping rate: 9000 t / day Blowing rate: 7260 Nm 3 / hr Oxygen enrichment ratio: 4% Coke ratio: 447 kg / t. pig Pulverized coal injection amount: 100 kg / t. pig Injection amount of waste wood: 10 kg / t. pig The above-mentioned waste wood was blown into the furnace for 2 days.
【００４３】その結果、廃木材は、９３％以上の高い燃
焼性を示した。更に、上述した本発明の範囲内の廃木材
においては、高炉の操業自体にも全く支障は生じなかっ
た。As a result, the waste wood exhibited a high flammability of 93% or more. Further, with the above-mentioned waste wood within the scope of the present invention, the operation of the blast furnace itself did not suffer at all.
【００４４】実施例３ 廃木材を粉砕して、０．５〜１０ｍｍの粉砕粒度の大き
さに調製した。このように調製した廃木材を、更に、間
接加熱方式によって９００℃の温度で炭化した。このよ
うに炭化調製した廃木材を、気送供給設備を経て、操業
中の高炉羽口から吹き込んで設備内の詰まり等のトラブ
ルの発生状況を調べた。即ち、貯留サイロに装入された
上述した廃木材をサイロから定量的に切出し、これを気
送供給設備まで移送し、気送供給設備から下記条件で高
炉羽口部に廃木材／廃プラスチック材を気送し、炉内に
吹き込んだ。 気送ガス：空気 気送ガス吹込み量：１２００Ｎｍ3／ｈｒ 廃木材：６２．５ｋｇ／ｍｉｎ 固気比：２．４ｋｇ／ｋｇExample 3 Waste wood was pulverized to a pulverized particle size of 0.5 to 10 mm. The waste wood thus prepared was further carbonized at a temperature of 900 ° C. by an indirect heating method. The waste wood thus carbonized was blown from the tuyere during operation through a pneumatic supply facility, and the occurrence of troubles such as clogging in the facility was examined. That is, the above-mentioned waste wood loaded in the storage silo is quantitatively cut out from the silo, transferred to a pneumatic supply facility, and discharged from the pneumatic supply facility to the tuyere of the blast furnace under the following conditions. Was blown into the furnace. Pneumatic gas: air Blowing gas blowing amount: 1200 Nm 3 / hr Waste wood: 62.5 kg / min Solid-gas ratio: 2.4 kg / kg
【００４５】（ｂ）このときの高炉操業条件は次の通り
であった。 出銑量：９０００ｔ／日 送風量：７２６０Ｎｍ3／ｈｒ 酸素富化率：４％ コークス比：４４７ｋｇ／ｔ．ｐｉｇ 微粉炭吹込み量：１００ｋｇ／ｔ．ｐｉｇ 廃木材の吹込み量：１０ｋｇ／ｔ．ｐｉｇ 上述した廃木材の炉内吹込みを２日間実施した。(B) The blast furnace operating conditions at this time were as follows. Tapping rate: 9000 t / day Blowing rate: 7260 Nm 3 / hr Oxygen enrichment ratio: 4% Coke ratio: 447 kg / t. pig Pulverized coal injection amount: 100 kg / t. pig Injection amount of waste wood: 10 kg / t. pig The above-mentioned waste wood was blown into the furnace for 2 days.
【００４６】その結果、廃木材は、９６％以上の高い燃
焼性を示した。更に、上述した本発明の範囲内の廃木材
においては、高炉の操業自体にも全く支障は生じなかっ
た。As a result, the waste wood exhibited a high flammability of 96% or more. Further, with the above-mentioned waste wood within the scope of the present invention, the operation of the blast furnace itself did not suffer at all.
【００４７】[0047]
【発明の効果】上述したように、この発明によると、廃
木材の燃焼性および気送性を高め、高炉に装入して処理
する、廃木材の処理方法を提供することができる。即
ち、高炉等の吹込み燃料として供給することができ、高
炉等において炉の操業に支障を来すこと無く、廃棄物た
る廃木材の大量処理と有効利用をはかることができる。
また、高炉等のレースウエイ内における燃焼率を向上さ
せることができるので、高炉等の燃料コストを低減させ
ることができる。As described above, according to the present invention, it is possible to provide a method for treating waste wood, which improves the combustibility and pneumaticity of the waste wood, and charges and treats the waste wood in a blast furnace. That is, it can be supplied as blown fuel for a blast furnace or the like, and large-scale processing and effective utilization of waste wood as waste can be achieved without hindering the operation of the furnace in the blast furnace or the like.
Further, since the combustion rate in the raceway of the blast furnace or the like can be improved, the fuel cost of the blast furnace or the like can be reduced.
【図１】図１は、廃木材の燃焼性を示す図である。FIG. 1 is a diagram showing the combustibility of waste wood.
【図２】図２は、木材、石炭、および、粒状体の特性を
示す図である。FIG. 2 is a diagram showing characteristics of wood, coal, and granules.
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.7 識別記号 ＦＩ テーマコート゛(参考） Ｃ１０Ｂ 53/00 Ｃ１０Ｂ 57/04 53/02 ＺＡＢ Ｃ１０Ｌ 5/48 57/04 Ｃ２１Ｂ 5/00 ３０１ Ｃ１０Ｌ 5/48 Ｂ０９Ｂ 3/00 ＺＡＢＺ Ｃ２１Ｂ 5/00 ３０１ ３０３Ｚ (72)発明者 澤田 輝俊 東京都千代田区丸の内一丁目１番２号 日 本鋼管株式会社内 Ｆターム(参考） 4D004 AA12 BA03 CA04 CA14 CA15 CA26 CC15 CC16 CC17 DA03 DA06 DA10 DA20 4G004 LA00 4H012 HA01 JA03 MA01 4H015 AA02 AA07 AA09 AA13 AA14 AB01 BA01 BB03 BB10 CB01 4K012 BA04 BA06 ──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. 7 Identification symbol FI Theme coat ゛ (Reference) C10B 53/00 C10B 57/04 53/02 ZAB C10L 5/48 57/04 C21B 5/00 301 C10L 5 / 48 B09B 3/00 ZABZ C21B 5/00 301 303Z (72) Inventor Terutoshi Sawada 1-2-1 Marunouchi, Chiyoda-ku, Tokyo F-term in Nippon Kokan Co., Ltd. 4D004 AA12 BA03 CA04 CA14 CA15 CA26 CC15 CC16 CC17 DA03 DA06 DA10 DA20 4G004 LA00 4H012 HA01 JA03 MA01 4H015 AA02 AA07 AA09 AA13 AA14 AB01 BA01 BB03 BB10 CB01 4K012 BA04 BA06
Claims (12)
または比表面積によって表される燃焼性、ならびに、気
送性を高め、高炉に装入する廃木材の処理方法。Claims 1. Waste wood is treated to burn calories and / or
Alternatively, a method for treating waste wood to be charged into a blast furnace by enhancing the combustibility represented by the specific surface area and the pneumatic property.
ｍの粉砕粒度の大きさに粉砕し、粒状の廃プラスチック
を１０／９０〜９０／１０の範囲内の混合比（廃木材／
廃プラスチック材の重量比）で混合することからなるこ
とを特徴とする、請求項１に記載の廃木材の処理方法。2. The method according to claim 1, wherein the treatment is to remove the waste wood by 0.5 to 10 m.
m and the mixture of granular waste plastics in a mixing ratio (waste wood / waste wood) in the range of 10/90 to 90/10.
2. The method for treating waste wood according to claim 1, wherein the mixing is performed at a ratio of the weight of the waste plastic material).
１００μｍの大きさに粉砕することからなることを特徴
とする、請求項１に記載の廃木材の処理方法。3. The treatment according to claim 1, wherein the waste wood has an average particle size of 10 to 10.
The method for treating waste wood according to claim 1, wherein the method comprises pulverizing to a size of 100 µm.
ｍの粉砕粒度の大きさに粉砕し、間接加熱方式によって
８００℃以上の温度で炭化することからなっていること
を特徴とする、請求項１に記載の廃木材の処理方法。4. The treatment according to claim 1, wherein said waste wood is removed for 0.5 to 10 m.
The method for treating waste wood according to claim 1, characterized in that it is crushed to a size of crushed particle size of m and carbonized at a temperature of 800 ° C or more by an indirect heating method.
ｍｍの粉砕粒度の大きさに粉砕し、タール系油、石油系
油、廃油、廃食油、廃潤滑油の少なくとも１つからなる
油を１０／９０〜９０／１０の範囲内の混合比（廃木材
／油の重量比）で混合することからなることを特徴とす
る、請求項１に記載の廃木材の処理方法。5. The method according to claim 1, wherein the treatment is to remove the waste wood from 10 μm to 10 μm.
mm, and an oil composed of at least one of tar-based oil, petroleum-based oil, waste oil, waste edible oil and waste lubricating oil is mixed in a ratio of 10/90 to 90/10 (waste). The method for treating waste wood according to claim 1, characterized in that the method comprises mixing by weight (wood / oil).
ｍの粉砕粒度の大きさに粉砕し、５００〜１２００℃の
間の温度に、昇温速度１０００℃／秒以上で１〜１０秒
間滞留させて、前記廃木材を急速熱分解させることから
なることを特徴とする、請求項１に記載の廃木材の処理
方法。6. The method according to claim 1, wherein the treatment removes the waste wood from 0.5 to 10 m.
m, crushed to a size of 500 to 1200 ° C. and kept at a temperature rising rate of 1000 ° C./sec or more for 1 to 10 seconds to rapidly pyrolyze the waste wood. The method for treating waste wood according to claim 1, wherein:
によって８００℃以上の温度で炭化することからなって
いることを特徴とする、請求項３に記載の廃木材の処理
方法。7. The method for treating waste wood according to claim 3, further comprising, subsequent to said treatment, carbonizing at a temperature of 800 ° C. or more by an indirect heating method.
スチックを１０／９０〜９０／１０の範囲内の混合比
（廃木材／廃プラスチック材の重量比）で混合すること
からなることを特徴とする、請求項４に記載の廃木材の
処理方法。8. The method according to claim 7, further comprising mixing the granular waste plastic at a mixing ratio (weight ratio of waste wood / waste plastic material) in the range of 10/90 to 90/10. The method for treating waste wood according to claim 4, wherein:
スチックを１０／９０〜９０／１０の範囲内の混合比
（廃木材／廃プラスチック材の重量比）で混合すること
からなることを特徴とする、請求項３に記載の廃木材の
処理方法。9. The method according to claim 8, further comprising mixing the granular waste plastic with a mixing ratio (weight ratio of waste wood / waste plastic material) within a range of 10/90 to 90/10. The method for treating waste wood according to claim 3, wherein:
混合し、このように混合した前記廃木材および前記廃プ
ラスチックをすりつぶし、および、押出し工程を含む造
粒機によって、表面が溶融固化した粒状体を形成するこ
とを特徴とする、請求項２、８および９の何れか１項に
記載の廃木材の処理方法。10. The waste wood and the waste plastic are mixed, and the waste wood and the waste plastic thus mixed are ground and the granules whose surface has been melted and solidified by a granulator including an extrusion step. The method for treating waste wood according to any one of claims 2, 8, and 9, wherein the method is performed.
前記廃木材を微粉炭と混合することを特徴とする、請求
項３に記載の廃木材の処理方法。11. The method for treating waste wood according to claim 3, further comprising, after the treatment, mixing the pulverized waste wood with pulverized coal.
ｍｍの粉砕粒度の大きさに粉砕し、間接加熱方式によっ
て５００℃以下の温度で炭化することからなっているこ
とを特徴とする、請求項１に記載の廃木材の処理方法。12. The treatment according to claim 10, wherein said waste wood is treated for 0.5 to 10 minutes.
The method for treating waste wood according to claim 1, characterized in that it is crushed to a crushed particle size of mm and carbonized at a temperature of 500 ° C or less by an indirect heating method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000203503A JP2002020771A (en) | 2000-07-05 | 2000-07-05 | Method for disposing waste wood |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000203503A JP2002020771A (en) | 2000-07-05 | 2000-07-05 | Method for disposing waste wood |
Related Child Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2003062280A Division JP2003313608A (en) | 2003-03-07 | 2003-03-07 | Process for treating scrap wood |
| JP2004351600A Division JP2005187940A (en) | 2004-12-03 | 2004-12-03 | Method for treating waste wood |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2002020771A true JP2002020771A (en) | 2002-01-23 |
Family
ID=18700900
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000203503A Pending JP2002020771A (en) | 2000-07-05 | 2000-07-05 | Method for disposing waste wood |
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| Country | Link |
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| JP (1) | JP2002020771A (en) |
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| US7066585B2 (en) * | 2002-08-30 | 2006-06-27 | Seiko Epson Corporation | Liquid ejecting apparatus, tank for evacuating liquid of liquid ejecting apparatus and method of evacuating liquid of liquid ejecting apparatus |
| JP2008013738A (en) * | 2006-07-06 | 2008-01-24 | Biomass Products:Kk | Fine powder fuel of lignocellulose biomass and its manufacturing method |
| JP2014519684A (en) * | 2011-06-03 | 2014-08-14 | カウンスィル オブ サイエンティフィック アンド インダストリアル リサーチ | Preparation method of quiche graphite lithium insertion anode material for lithium ion battery |
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| JP2020002323A (en) * | 2018-07-02 | 2020-01-09 | 株式会社エム・アイ・エス | Fuel production apparatus using organic sludge |
| JP2020002321A (en) * | 2018-07-02 | 2020-01-09 | 株式会社エム・アイ・エス | Fuel production apparatus using digested sludge |
| WO2023089704A1 (en) * | 2021-11-17 | 2023-05-25 | 株式会社平井工業 | System for producing waste oil-impregnated fuel |
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