JPH0239684B2 - - Google Patents
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- Publication number
- JPH0239684B2 JPH0239684B2 JP59150368A JP15036884A JPH0239684B2 JP H0239684 B2 JPH0239684 B2 JP H0239684B2 JP 59150368 A JP59150368 A JP 59150368A JP 15036884 A JP15036884 A JP 15036884A JP H0239684 B2 JPH0239684 B2 JP H0239684B2
- Authority
- JP
- Japan
- Prior art keywords
- medium
- furnace
- combustion
- combustion gas
- combustible material
- 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.)
- Expired - Lifetime
Links
- 238000002485 combustion reaction Methods 0.000 claims description 49
- 238000001035 drying Methods 0.000 claims description 48
- 239000000463 material Substances 0.000 claims description 48
- 239000000567 combustion gas Substances 0.000 claims description 30
- 238000004891 communication Methods 0.000 claims description 20
- 239000000446 fuel Substances 0.000 claims description 19
- 238000000034 method Methods 0.000 claims description 17
- 239000002023 wood Substances 0.000 claims description 15
- 239000004576 sand Substances 0.000 claims description 5
- 239000000126 substance Substances 0.000 claims description 5
- 239000007789 gas Substances 0.000 claims description 2
- 239000008187 granular material Substances 0.000 claims description 2
- 239000000843 powder Substances 0.000 claims 1
- 239000002028 Biomass Substances 0.000 description 5
- 239000000295 fuel oil Substances 0.000 description 4
- 238000010248 power generation Methods 0.000 description 4
- 238000009841 combustion method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005243 fluidization Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000003208 petroleum Substances 0.000 description 2
- 239000002956 ash Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Fluidized-Bed Combustion And Resonant Combustion (AREA)
Description
【発明の詳細な説明】
〔発明の利用分野〕
本発明は、湿潤可燃物質例えば木質系燃料等の
バイオマスを効率よく燃焼する方法及びその燃焼
装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Application of the Invention] The present invention relates to a method and a combustion apparatus for efficiently burning wet combustible materials such as biomass such as wood fuel.
近年、石油代替燃料の中でバイオマスが注日さ
れている。特に木質系燃料は従来から燃料として
小規模に利用されており、技術開発の難易度から
云えば他の代替燃料に比し比較的容易であるが、
大規模燃焼装置で燃焼するには次のような欠点が
ある。木質系燃料は水分を含有し一般に40〜60％
wtを有している。従つて木質系燃料を燃焼する
場合、木質系燃料そのままでは燃焼が困難であ
り、助燃剤の使用か乾燥機による予備乾燥が必要
である。助燃剤としては一般に重油が使用されて
いるが、重油を使用すれば石油代替燃料と云い難
い。また、乾燥機により予備乾燥するには、乾燥
機に要するエネルギーとして系外の燃焼装置から
の熱エネルギーを求めなければならず、経済的に
不都合である。上記の現状からバイオマス、特に
木質系燃料等を含めて湿潤可燃物質を助燃剤や乾
燥機を使用することなく効率よく燃焼する方法及
び装置が望まれている。
In recent years, biomass has been used as an alternative fuel to petroleum. In particular, wood-based fuels have traditionally been used as fuel on a small scale, and in terms of the difficulty of technological development, it is relatively easy compared to other alternative fuels.
Combustion in large-scale combustion equipment has the following disadvantages. Wood fuel contains water, generally 40-60%
It has wt. Therefore, when burning wood-based fuel, it is difficult to burn the wood-based fuel as it is, and it is necessary to use a combustion improver or pre-dry it using a dryer. Heavy oil is generally used as a combustion improver, but if heavy oil is used, it is difficult to say that it is an alternative fuel to petroleum. Further, in order to pre-dry the product using a dryer, thermal energy from a combustion device outside the system must be obtained as the energy required for the dryer, which is economically disadvantageous. In view of the above-mentioned current situation, there is a need for a method and apparatus for efficiently burning wet combustible materials including biomass, especially wood-based fuel, without using a combustion improver or a dryer.
本発明の目的は上記の欠点を解決し、湿潤可燃
物質を燃焼するに際し、湿潤可燃物質の燃焼によ
る生成する熱エネルギーを利用して湿潤可燃物質
を乾燥した後、湿潤可燃物質を燃焼する方法及び
その装置を提供することにある。
The object of the present invention is to solve the above-mentioned drawbacks, and provide a method and a method for burning a wet combustible material after drying the wet combustible material by using thermal energy generated by the combustion of the wet combustible material. The goal is to provide that device.
本発明の湿潤可燃物質の燃焼装置は、湿潤可燃
物質供給管や燃焼ガス管を設けた流動方式の乾燥
炉と流動方式の火炉とが夫々の上部の空間部及び
下部の流動媒体部で連通されて一体化されている
燃焼装置である。
In the wet combustible material combustion apparatus of the present invention, a fluidized drying furnace and a fluidized furnace equipped with a wet combustible material supply pipe and a combustion gas pipe are connected to each other through an upper space and a lower fluidized medium portion. This is an integrated combustion device.
また、本発明の湿潤可燃物質の燃焼方法は、前
記の燃焼装置を使用して、前記乾燥炉に湿潤可燃
物質を供給し高温度の媒体で流動乾燥し、乾燥し
た湿潤可燃物質を媒体と共に前記下部連通部を流
動させながら前記火炉に送り、次に火炉において
乾燥した湿潤可燃物質を媒体によつて流動燃焼し
て高温度の燃焼ガスと媒体を得、燃焼ガス又はこ
れと媒体とを前記上部連通部を通して前記乾燥炉
の上部の空間部に送り、次に乾燥炉の上部の空間
部において燃焼ガス中に含まれる媒体を燃焼ガス
から分離し、媒体を分離した燃焼ガスと湿潤可燃
物質から発生した蒸気とを乾燥炉の頂部の燃焼ガ
ス管から排出し、媒体を上部の空間部から下部の
流動媒体層に沈降する方法である。 In addition, the method for burning a wet combustible material of the present invention uses the combustion apparatus described above, supplies the wet combustible material to the drying furnace, fluidizes it with a high-temperature medium, and transfers the dried wet combustible material together with the medium to the drying furnace. The lower communication section is flowed and sent to the furnace, and then the dry wet combustible material is fluidized and combusted in the furnace using a medium to obtain high temperature combustion gas and the medium, and the combustion gas or the medium is transferred to the upper part. The medium contained in the combustion gas is sent through the communication part to the space above the drying furnace, and then the medium contained in the combustion gas is separated from the combustion gas in the space above the drying furnace. In this method, the steam is discharged from the combustion gas pipe at the top of the drying oven, and the medium is allowed to settle from the upper space into the lower fluidized medium layer.
前記乾燥炉の上部の空間部に送られた燃焼ガス
中に含まれる媒体は媒体の粒子性状、燃焼ガス速
度、空間部形状等の諸因子によつて燃焼ガスから
媒体の分離に難易がある。其故、必要に応じて前
記乾燥炉の上部の空間部の内壁がサイクロン構造
に形成された装置を使用することにより媒体の分
離を容易に行なうことができ好ましい。 It is difficult to separate the medium contained in the combustion gas sent to the upper space of the drying oven due to various factors such as particle properties of the medium, combustion gas velocity, and the shape of the space. Therefore, if necessary, it is preferable to use a device in which the inner wall of the space above the drying oven is formed into a cyclone structure, since the medium can be easily separated.
また、湿潤可燃物質としてバイオマス、特に木
質系燃料を使用し、流動乾燥及び流動燃焼の媒体
として湿潤可燃物質を燃焼したとき生成する灰、
砂及びこれら以外の無機粉粒体から選ばれる１種
又は２種以上の媒体を使用することができる。 In addition, biomass, especially wood-based fuel, is used as the wet combustible material, and ash generated when the wet combustible material is burned as a medium for fluidized drying and fluidized combustion.
One or more media selected from sand and other inorganic granules can be used.
上記の如く本発明燃焼方法の要点は、湿潤可燃
物質を乾燥炉で媒体により流動乾燥し、得られた
乾燥した湿潤可燃物質を火炉で媒体により流動燃
焼し、燃焼温度の高温になつた媒体を乾燥炉の媒
体に混合する媒体の還流により、湿潤可燃物質の
乾燥を湿潤可燃物質自身の燃焼エネルギーによつ
て行なうものである。 As mentioned above, the main point of the combustion method of the present invention is to fluidize wet combustible material in a drying oven using a medium, fluidize the resulting dry wet combustible material in a furnace, and burn the medium at a high combustion temperature. By refluxing the medium mixed with the medium of the drying oven, the wet combustible material is dried by the combustion energy of the wet combustible material itself.
本発明の湿潤可燃物質の燃焼方法及びその燃焼
装置を具体的に述べ、本燃焼装置の１例の概略を
第１図に示す。燃焼装置本体１は乾燥炉２と火炉
３とが夫々上部の空間部の連通部４、下部の媒体
層部の連通部５で接続され一体化された構造であ
る。尚、乾燥炉２の上部の空間部の内壁は上部が
円筒状で下部が円錐状にしぼられたサイクロン構
造１２に形成されている。
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The method of burning a wet combustible material and the combustion apparatus thereof according to the present invention will be specifically described, and an example of the combustion apparatus is shown schematically in FIG. The combustion apparatus main body 1 has an integrated structure in which a drying oven 2 and a furnace 3 are connected through a communication section 4 in an upper space and a communication section 5 in a lower medium layer section, respectively. The inner wall of the upper space of the drying oven 2 is formed into a cyclone structure 12 having a cylindrical upper part and a conical lower part.
次に本燃焼装置を使用して湿潤可燃物質を燃焼
する。先ず湿潤可燃物質として木質系燃料を供給
し、媒体として湿潤可燃物質を燃焼したときに生
成する灰及び砂を使用する。木質系燃料を湿潤可
燃物質供給管６から乾燥炉２に供給し、後述のよ
うに高温度の媒体により流動乾燥する。媒体の流
動化用の空気を乾燥炉２の下部に設けた空気導入
管７から導入する。湿潤可燃物質に含まれている
水分は蒸発し、蒸気は流動媒体層から発散し空間
部へ上昇する。乾燥した木質系燃料は媒体と共に
流動しながら下方へ移動し、更に下部連通部５を
通り火炉３に送られる。次に火炉３に設けた媒体
流動化用空気導入管８、燃焼用空気導入管９から
空気を導入し、乾燥した木質系燃料を媒体と共に
流動させて燃焼する。木質系燃料は乾燥されてい
るので極めて容易に燃焼され、媒体は燃焼温度に
加熱される。流動媒体層の表面から燃焼による灰
及び砂の粉粒媒体が飛散し、燃焼ガスに同伴され
て上部連通部４を通り乾燥炉２の上部空間部に送
られる。この上部空間部はサイクロン構造１２に
形成されているので、燃焼ガス中に含まれる灰、
砂は速に分離されて沈降し、下部の流動乾燥の媒
体と混合する。沈降した媒体は高温であるので流
動乾燥媒体の温度を高温に維持し、また乾燥炉２
から火炉３へ移行する媒体量の減少を補給する。
粉粒媒体を除去した燃焼ガスは流動乾燥からの蒸
気と共に燃焼ガス管１３から排出する。 The combustion device is then used to combust the wet combustible material. First, wood-based fuel is supplied as the wet combustible material, and ash and sand produced when the wet combustible material is combusted is used as the medium. Wood-based fuel is supplied to the drying furnace 2 from the wet combustible material supply pipe 6, and is fluidized and dried using a high-temperature medium as described later. Air for fluidizing the medium is introduced from an air introduction pipe 7 provided at the bottom of the drying oven 2. The moisture contained in the wet combustible material evaporates and steam emanates from the bed of fluidized media and rises into the space. The dry wood fuel moves downward while flowing together with the medium, and is further sent to the furnace 3 through the lower communication part 5. Next, air is introduced from the medium fluidization air introduction pipe 8 and the combustion air introduction pipe 9 provided in the furnace 3, and the dry wood fuel is fluidized together with the medium and burned. Since wood-based fuels are dry, they are very easily combusted and the medium is heated to combustion temperature. Particle media of ash and sand due to combustion are scattered from the surface of the fluidized media layer, and are sent to the upper space of the drying furnace 2 through the upper communication portion 4 along with the combustion gas. Since this upper space is formed in the cyclone structure 12, ash contained in the combustion gas,
The sand quickly separates and settles, mixing with the fluidized drying medium at the bottom. Since the settled medium has a high temperature, the temperature of the fluidized drying medium is maintained at a high temperature, and the drying oven 2
Replenish the decrease in the amount of medium transferred from to the furnace 3.
The combustion gas from which the particulate media has been removed is discharged from the combustion gas pipe 13 together with the steam from the fluidized fluidized drying.
尚、上記の構造において必要に応じて流動燃焼
層中に伝熱管１１を設けて伝熱管内の流体と熱交
換させ燃焼温度の制御、熱エネルギーの回収をす
る。また媒体を火炉３から上部連通部４を経て乾
燥炉２に送り、更に下部連通部５を経て火炉３に
還流を続けると、生成する灰が蓄積し媒体量が増
えるのでベツドドレン弁１０から媒体を排出す
る。また火炉３の流動燃焼層の高さを上部連通部
４に達するようにし、媒体を上部連通部を溢流さ
せて乾燥炉２に送り沈降させることもできる。 In the above structure, if necessary, a heat transfer tube 11 is provided in the fluidized combustion bed to exchange heat with the fluid in the heat transfer tube to control the combustion temperature and recover thermal energy. Furthermore, if the medium is sent from the furnace 3 to the drying furnace 2 via the upper communication section 4 and then continues to be returned to the furnace 3 via the lower communication section 5, the generated ash will accumulate and the amount of medium will increase, so the medium will be removed from the bed drain valve 10. Discharge. It is also possible to set the height of the fluidized combustion bed of the furnace 3 so as to reach the upper communication part 4, so that the medium overflows the upper communication part and is sent to the drying oven 2 and allowed to settle.
上記の如く本発明の燃焼方法は、湿潤可燃物質
を系内で発生する燃焼エネルギーで加熱された高
温媒体によつて乾燥し、しかも固体−固体の直接
接触の熱伝導によるので乾燥が速かに行なわれ
る。 As described above, the combustion method of the present invention dries a wet combustible material using a high-temperature medium heated by combustion energy generated within the system, and furthermore, because it uses heat conduction through direct solid-solid contact, drying is quick. It is done.
次に空気ブレイトンサイクル発電方式に本発明
燃焼装置を組み合せ、その系統図を第２図に示
す。空気１７を圧縮機１４に導入し高圧にし、次
に経路１８を経て空気加熱器２０に送つて加熱
し、高温高圧の空気をタービン１５に導入して発
電機１６によつて発電する。更にタービン１５か
ら高温の空気を経路１９を経て湿潤可燃物質の燃
焼装置１に導入する。燃焼装置に木質系燃料を６
から供給し、乾燥、燃焼する。１９からの高温空
気を木質系燃料の乾燥用、燃焼用空気として利用
する。次に燃焼装置１から燃焼ガスを空気加熱器
２０に送り圧縮機１４からの空気と熱交換させ排
出する。尚、圧縮機からの空気の加熱を空気加熱
器２０だけでなく、燃焼装置の火炉３内の伝熱管
１１（第１図）を利用することもできる。 Next, the combustion apparatus of the present invention was combined with the air Brayton cycle power generation system, and a system diagram thereof is shown in FIG. Air 17 is introduced into the compressor 14 and made to a high pressure, and then sent through a path 18 to an air heater 20 to be heated.The high temperature and high pressure air is introduced into a turbine 15 and generated by a generator 16 to generate electricity. Furthermore, hot air from the turbine 15 is introduced into the wet combustible material combustion device 1 via a path 19 . Wood-based fuel in combustion equipment6
supplied from, dried and burned. The high-temperature air from No. 19 is used as drying and combustion air for wood-based fuel. Next, the combustion gas is sent from the combustion device 1 to the air heater 20, where it exchanges heat with the air from the compressor 14, and is then discharged. Incidentally, not only the air heater 20 but also the heat transfer tube 11 (FIG. 1) in the furnace 3 of the combustion apparatus can be used to heat the air from the compressor.
ブレイトンサイクル発電方式に本発明燃焼装置
を組み合せた場合、湿潤可燃物質の乾燥用及び燃
焼用空気としてタービンから排出した高温空気を
利用でき、また圧縮機からの高圧空気の加熱に系
内の燃焼エネルギーを利用でき、熱エネルギーを
有効に利用し発電コストの低減に寄与できる。 When the combustion device of the present invention is combined with the Brayton cycle power generation system, the high-temperature air discharged from the turbine can be used as drying and combustion air for wet combustible materials, and the combustion energy within the system can be used to heat the high-pressure air from the compressor. can be utilized, effectively utilizing thermal energy and contributing to reducing power generation costs.
上記した如く本発明の湿潤可燃物質の燃焼方法
及び燃焼装置は、湿潤可燃物質を系内の燃焼エネ
ルギーで加熱した高温の媒体で流動乾燥し燃焼す
る方法、及びその装置であり、通常の乾燥可燃物
質を燃焼するのと同等にスムーズに燃焼でき、天
然に大量に生成するバイオマスをエネルギー化で
きる。
As described above, the method and apparatus for burning a wet combustible material of the present invention is a method and apparatus for fluidizing and burning a wet combustible material using a high-temperature medium heated by combustion energy in the system, and a method and apparatus for the same. It can be burned as smoothly as burning other substances, and biomass, which is naturally produced in large quantities, can be converted into energy.
従つて重油等の助燃剤を使用しないので重油燃
焼によつて生成する有害ガスの発生が無く、公害
物質が極めて低減できる。また本発明装置は別に
乾燥機を設ける必要が無いので系外からのエネル
ギーが必要であり、また乾燥炉と火炉とが一体化
されているので装置が小型化でき、設備費が安く
なる。尚、乾燥炉で高温度の媒体は湿潤可燃物質
を乾燥するので一次冷却されて火炉へ流入するた
め、燃焼温度が低く目に維持され、NOxの発生
が抑制される効果も有する。 Therefore, since no combustion improver such as heavy oil is used, there is no generation of harmful gases produced by combustion of heavy oil, and the amount of pollutants can be significantly reduced. Furthermore, since the apparatus of the present invention does not require a separate dryer, energy from outside the system is required, and since the drying furnace and furnace are integrated, the apparatus can be made smaller and the equipment cost can be reduced. Note that the high-temperature medium in the drying oven dries the wet combustible material, so it is first cooled and flows into the furnace, so the combustion temperature is maintained at a low level, which also has the effect of suppressing the generation of NOx .
本発明の湿潤可燃物質の燃焼装置の概略を第１
図に示し、本発明装置を使用したプレイトンサイ
クル発電方式の系統図を第２図に示す。
１……燃焼装置本体、２……乾燥炉、３……火
炉、４……上部連通部、５……下部連通部、６…
…湿潤可燃物質供給管、７，８……流動化空気導
入管、９……燃焼用空気導入管、１０……ベツド
ドレン弁、１１……伝熱管、１２……サイクロン
構造、１３……燃焼ガス管、１４……圧縮機、１
５……タービン、１６……発電機、２０……空気
加熱器。
The outline of the wet combustible material combustion apparatus of the present invention will be explained in the first part.
FIG. 2 shows a system diagram of the Preyton cycle power generation system using the device of the present invention. DESCRIPTION OF SYMBOLS 1...Combustion device main body, 2...Drying oven, 3...Furnace, 4...Upper communication section, 5...Lower communication section, 6...
...Wet combustible material supply pipe, 7, 8...Fluidization air introduction pipe, 9...Combustion air introduction pipe, 10...Bed drain valve, 11...Heat transfer tube, 12...Cyclone structure, 13...Combustion gas Pipe, 14... Compressor, 1
5...turbine, 16...generator, 20...air heater.
Claims (1)
下部の媒体層部の連通部で一体化した燃焼装置を
使用して湿潤可燃物質を燃焼する方法にして、前
記乾燥炉に供給した湿潤可燃物質を、乾燥炉の上
部の空間部から沈降した高温度の媒体と空気とで
流動乾燥し、次いで流動乾燥した湿潤可燃物質を
媒体と共に前記下部連通部を流動させながら前記
火炉に送り、次に火炉において乾燥した湿潤可燃
物質を媒体と共に流動燃焼して高温度の燃焼ガス
と媒体を生じ、燃焼ガスと媒体とを前記上部連通
部を通して前記乾燥炉の上部の空間部に送り、次
に乾燥炉の上部の空間部において燃焼ガス中に含
まれる媒体を燃焼ガスから分離し、一方では媒体
を分離した燃焼ガスと湿潤可燃物質から発生した
蒸気とを乾燥炉の頂部の燃焼ガス管から排出し、
他方では媒体を乾燥炉の上部の空間部から下部の
流動媒体層に沈降することを特徴とする湿潤可燃
物質の燃焼方法。 ２ 前記乾燥炉の上部の内壁がサイクロン構造に
形成されている空間部に燃焼ガスを前記上部連通
部から送り、燃焼ガス中に含まれる媒体を燃焼ガ
スから分離することを特徴とする特許請求の範囲
第１項に記載の湿潤可燃物質の燃焼方法。 ３ 湿潤可燃物質が木質系燃料であることを特徴
とする特許請求の範囲第１項又は第２項に記載の
湿潤可燃物質の燃焼方法。 ４ 媒体が湿潤可燃物質を燃焼したとき生成する
灰、砂及びこれら以外の無機粉粒体から選ばれる
１種又は２種以上からなる媒体であることを特徴
とする特許請求の範囲前項いずれかの１項に記載
の湿潤可燃物質の燃焼方法。 ５ 乾燥炉と火炉とが夫々の上部の空間部並びに
下部の媒体層部の連通部で一体化した燃焼装置を
使用して湿潤可燃物質を燃焼する方法にして、前
記乾燥炉に供給した湿潤可燃物質を、乾燥炉の上
部の空間部から沈降した高温度の媒体と空気とで
流動乾燥し、次いで流動乾燥した湿潤可燃物質を
媒体と共に前記下部連通部を流動させながら前記
火炉に送り、次に火炉において乾燥した湿潤可燃
物質を媒体と共に流動燃焼して高温度の燃焼ガス
と媒体を生じ、燃焼ガスと媒体とを前記上部連通
部を通して前記乾燥炉の上部の空間部に送り、次
に乾燥炉の上部の空間部において燃焼ガス中に含
まれる媒体を燃焼ガスから分離し、一方では媒体
を分離した燃焼ガスと湿潤可燃物質から発生した
蒸気とを乾燥炉の頂部の燃焼ガス管から排出し、
他方では媒体を乾燥炉の上部の空間部から下部の
流動媒体層に沈降することを特徴とする湿潤可燃
物質の燃焼方法を実施する燃焼装置にして、乾燥
炉と火炉とが夫々の上部の空間部並びに下部の媒
体層部の連通部で一体化し、燃焼ガス管と湿潤可
燃物質供給管とが乾燥炉の上部の空間部に開口し
ていて、媒体層部の媒体層を流動化する空気の空
気導入管が乾燥炉の媒体層部に開口していて、火
炉の媒体層部の媒体層を流動化する空気の空気導
入管と可燃物質燃焼用空気導入管とが火炉の媒体
層部に開口している燃焼装置。 ６ 前記乾燥炉の上部の空間部の内壁がサイクロ
ン構造に形成されていることを特徴とする特許請
求の範囲第５項に記載の湿潤可燃物質の燃焼装
置。[Scope of Claims] 1. A method of burning wet combustible materials using a combustion device in which a drying furnace and a furnace are integrated at a space in the upper part of each and a communication part in a lower medium layer part, The wet combustible material supplied to the furnace is fluidized and dried with air and a high-temperature medium that has settled from the upper space of the drying furnace, and then the fluidized and dried wet combustible material is flowed together with the medium through the lower communication section and The dry wet combustible material is then flow-combusted with a medium in the furnace to produce high-temperature combustion gas and medium, and the combustion gas and medium are passed through the upper communication part to the upper space of the drying furnace. The medium contained in the combustion gas is then separated from the combustion gas in the upper space of the drying oven, and the combustion gas from which the medium has been separated and the steam generated from the wet combustible material are then combusted at the top of the drying oven. exhaust from the gas pipe,
On the other hand, a method for the combustion of wet combustible materials, characterized in that the medium is allowed to settle from the upper space of the drying oven into a lower fluidized medium bed. 2. A combustion gas is sent from the upper communication part to a space in which the inner wall of the upper part of the drying furnace is formed in a cyclone structure, and a medium contained in the combustion gas is separated from the combustion gas. A method of burning a wet combustible material according to scope 1. 3. The method for burning a wet combustible material according to claim 1 or 2, wherein the wet combustible material is a wood-based fuel. 4. Claims defined in any one of the preceding paragraphs, characterized in that the medium is one or more selected from ash, sand, and other inorganic powder and granules produced when wet combustible substances are combusted. The method of burning a wet combustible substance according to item 1. 5 A method of burning wet combustible materials using a combustion device in which a drying furnace and a furnace are integrated at the upper space and the communication section of the lower medium layer, and the wet combustible material supplied to the drying furnace is The substance is fluidized with air and a high-temperature medium that has settled from the upper space of the drying oven, and then the fluidized and dried wet combustible material is sent to the furnace with the medium flowing through the lower communication part, and then The dry wet combustible material is fluidized and combusted together with a medium in a furnace to produce high temperature combustion gas and medium, and the combustion gas and medium are sent through the upper communication part to the upper space of the drying furnace, and then the drying furnace is heated. The medium contained in the combustion gas is separated from the combustion gas in the upper space of the drying oven, and the combustion gas from which the medium has been separated and the steam generated from the wet combustible material are discharged from the combustion gas pipe at the top of the drying oven.
On the other hand, it is a combustion apparatus for carrying out a method of combustion of wet combustible materials, which is characterized in that the medium is allowed to settle from the upper space of the drying oven to the lower fluidized medium bed, and the drying oven and the furnace are arranged in the upper space of each. The combustion gas pipe and the wet combustible material supply pipe open into the upper space of the drying oven, and the air to fluidize the media layer in the media layer is integrated at the communication part of the upper part and the lower media layer part. The air introduction pipe opens into the media layer section of the drying furnace, and the air introduction tube for air that fluidizes the media layer in the media layer section of the furnace and the air introduction tube for flammable substance combustion open into the media layer section of the furnace. combustion equipment. 6. The wet combustible material combustion apparatus according to claim 5, wherein the inner wall of the upper space of the drying oven is formed in a cyclone structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15036884A JPS6129607A (en) | 1984-07-19 | 1984-07-19 | Method and apparatus of burning wet combustible material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15036884A JPS6129607A (en) | 1984-07-19 | 1984-07-19 | Method and apparatus of burning wet combustible material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6129607A JPS6129607A (en) | 1986-02-10 |
| JPH0239684B2 true JPH0239684B2 (en) | 1990-09-06 |
Family
ID=15495463
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15036884A Granted JPS6129607A (en) | 1984-07-19 | 1984-07-19 | Method and apparatus of burning wet combustible material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6129607A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH045268U (en) * | 1990-04-24 | 1992-01-17 |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5821711B2 (en) * | 1977-01-26 | 1983-05-02 | セイコーインスツルメンツ株式会社 | world clock |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54100481U (en) * | 1977-12-26 | 1979-07-16 | ||
| JPS5821711U (en) * | 1981-08-03 | 1983-02-10 | バブコツク日立株式会社 | Fluidized bed combustion equipment |
-
1984
- 1984-07-19 JP JP15036884A patent/JPS6129607A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5821711B2 (en) * | 1977-01-26 | 1983-05-02 | セイコーインスツルメンツ株式会社 | world clock |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH045268U (en) * | 1990-04-24 | 1992-01-17 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6129607A (en) | 1986-02-10 |
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