JP2892296B2 - Waste incineration method - Google Patents

Waste incineration method

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Publication number
JP2892296B2
JP2892296B2 JP5100295A JP5100295A JP2892296B2 JP 2892296 B2 JP2892296 B2 JP 2892296B2 JP 5100295 A JP5100295 A JP 5100295A JP 5100295 A JP5100295 A JP 5100295A JP 2892296 B2 JP2892296 B2 JP 2892296B2
Authority
JP
Japan
Prior art keywords
waste
powder
combustible
incinerator
combustible waste
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 - Fee Related
Application number
JP5100295A
Other languages
Japanese (ja)
Other versions
JPH08248191A (en
Inventor
定男 金澤
孝一 後藤
恒一 可児
茂樹 山平
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NIPPON GAISHI KK
Tohoku Electric Power Co Inc
Original Assignee
NIPPON GAISHI KK
Tohoku Electric Power Co Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by NIPPON GAISHI KK, Tohoku Electric Power Co Inc filed Critical NIPPON GAISHI KK
Priority to JP5100295A priority Critical patent/JP2892296B2/en
Publication of JPH08248191A publication Critical patent/JPH08248191A/en
Application granted granted Critical
Publication of JP2892296B2 publication Critical patent/JP2892296B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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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
    • 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

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【０００１】[0001]

【産業上の利用分野】本発明は汚泥、樹脂等の廃棄物、
特に原子力発電所等から発生する放射性の紙、ウエス、
木材、ポリエチレン等の易燃焼性の廃棄物と汚泥、イオ
ン交換樹脂、活性炭等の難燃焼性の廃棄物を、一括して
焼却炉で焼却処理する廃棄物の焼却処理方法に関するも
のである。The present invention relates to wastes such as sludge and resin,
In particular, radioactive paper, waste cloth, etc. generated from nuclear power plants, etc.
The present invention relates to a waste incineration method for collectively incinerating easily combustible waste such as wood and polyethylene and incombustible waste such as sludge, ion exchange resin and activated carbon in an incinerator.

【０００２】[0002]

【従来の技術】従来、原子力発電所等から発生する紙、
ウエス、木材、ポリエチレン、汚泥、イオン交換樹脂、
活性炭等の放射性の廃棄物は、減容化のため焼却処理す
るのが一般的であった。図３は、従来の焼却処理装置の
一例の構成を示す図である。図３に示す例において、２
１は汚泥、樹脂等の廃棄物を焼却するための焼却炉、２
２は特に運転開始時等の焼却炉２１が冷えた状態の時に
熱を供給するための予熱器、２３は焼却炉２１から発生
する排ガスを濾過するためのセラミックフィルタ、２４
はセラミックフィルタ２３を通過した排ガスを冷却する
ための冷却器、２５は排ガスをさらに濾過するための排
ガスフィルタ、２６は排ガスブロワである。2. Description of the Related Art Conventionally, paper generated from a nuclear power plant or the like,
Waste cloth, wood, polyethylene, sludge, ion exchange resin,
In general, radioactive waste such as activated carbon is incinerated to reduce the volume. FIG. 3 is a diagram showing a configuration of an example of a conventional incineration apparatus. In the example shown in FIG.
1 is an incinerator for incinerating waste such as sludge and resin.
2 is a preheater for supplying heat when the incinerator 21 is cold, particularly at the start of operation, 23 is a ceramic filter for filtering exhaust gas generated from the incinerator 21, 24
Is a cooler for cooling the exhaust gas passing through the ceramic filter 23, 25 is an exhaust gas filter for further filtering the exhaust gas, and 26 is an exhaust gas blower.

【０００３】上述した構成の焼却処理装置を使用して
紙、ウエス、木材、ポリエチレン、汚泥、樹脂等の廃棄
物を焼却処理する際、焼却処理の対象となる紙、ウエ
ス、木材、ポリエチレン等の易燃焼性の廃棄物と、汚
泥、イオン交換樹脂、活性炭等の難燃焼性の廃棄物と
を、充分に分別することなく、易燃焼性の廃棄物と難燃
焼性の廃棄物のバランスをとることなく、廃棄物をすべ
て焼却炉２１の上部の投入口２１ａから焼却炉２１内に
投入し、廃棄物のすべてを焼却炉２１内で燃焼させてい
た。[0003] When incinerating waste such as paper, waste, wood, polyethylene, sludge, and resin using the incineration apparatus having the above-described configuration, paper, waste, wood, polyethylene, and the like to be incinerated are treated. Balancing easily combustible waste and difficult combustible waste without sufficiently separating the combustible waste from sludge, ion exchange resin, activated carbon, etc. Without waste, all of the waste was put into the incinerator 21 through the inlet 21a at the top of the incinerator 21, and all of the waste was burned in the incinerator 21.

【０００４】[0004]

【発明が解決しようとする課題】しかしながら、上述し
たように、汚泥、イオン交換樹脂、活性炭等の廃棄物を
そのまま焼却炉２１に投入すると、難燃焼性の廃棄物の
うちイオン交換樹脂等の難燃焼性かつ高発熱性の性質を
持つ廃棄物は、周囲がクリンカー状になり、塊状の内部
は燃焼せずに未燃状態になりやすい問題があった。ま
た、活性炭等の遅燃焼性の性質を持つ廃棄物は、燃焼時
間がかかるので、周囲のみが燃焼した状態で未燃炭のま
ま排出されてしまうことがある問題があった。However, as described above, when waste such as sludge, ion-exchange resin, and activated carbon is put into the incinerator 21 as it is, the waste such as ion-exchange resin among the non-combustible waste is difficult. There is a problem that the waste having the property of combustibility and high heat generation becomes clinker around, and the inside of the lump tends to be unburned without burning. Further, there is a problem that waste having a slow burning property such as activated carbon may be discharged as unburned carbon in a state where only the surroundings are burned since it takes a long time to burn.

【０００５】本発明の目的は上述した課題を解消して、
易燃焼性および難燃焼性のすべての廃棄物を良好に焼却
処理できるとともに、廃棄物の焼却に使用するオイル、
ガス等の燃料の消費量を節減できる廃棄物の焼却処理方
法を提供しようとするものである。An object of the present invention is to solve the above-mentioned problems,
All inflammable and non-combustible waste can be incinerated well, and oil used for incineration of waste,
An object of the present invention is to provide a waste incineration method capable of reducing the consumption of fuel such as gas.

【０００６】[0006]

【課題を解決するための手段】本発明の廃棄物の焼却処
理方法は、廃棄物を紙、ウエス、木材、ポリエチレン等
の易燃焼性の廃棄物と、汚泥、イオン交換樹脂、活性炭
等の難燃焼性の廃棄物とに分別し、易燃焼性の廃棄物と
混焼可能な所定割合の難燃焼性の廃棄物を直接焼却炉に
供給して、易燃焼性の廃棄物と混焼するとともに、前記
難燃焼性の廃棄物の残部を、粉体燃焼可能な所定水分に
乾燥したのち所定粒度に粉砕するか、所定粒度に粉砕し
たのち粉体燃焼可能な所定水分に乾燥して、前記焼却炉
に設けた粉体バーナで粉体燃焼させて焼却することを特
徴とするものである。According to the present invention, there is provided a method for incinerating waste, comprising the steps of converting waste into easily combustible waste, such as paper, waste, wood, polyethylene, etc., and sludge, ion exchange resin, activated carbon, etc. It is separated into combustible waste, and a predetermined ratio of noncombustible waste that can be co-combusted with easily combustible waste is directly supplied to the incinerator, and co-combusted with easily combustible waste, The remainder of the incombustible waste is dried to a predetermined particle size capable of burning powder and then crushed to a predetermined particle size, or crushed to a predetermined particle size and then dried to a predetermined moisture ratio capable of burning a powder. It is characterized by burning the powder with the provided powder burner and burning it.

【０００７】また、本発明の廃棄物の焼却処理方法は、
廃棄物を紙、ウエス、木材、ポリエチレン等の易燃焼性
の廃棄物と、汚泥、イオン交換樹脂、活性炭等の難燃焼
性の廃棄物とに分別し、易燃焼性の廃棄物と混焼可能な
所定割合の難燃焼性の廃棄物を直接焼却炉に供給して、
易燃焼性の廃棄物と混焼するとともに、前記難燃焼性の
廃棄物の残部を、粉体燃焼可能な所定水分に乾燥したの
ち所定粒度に粉砕するか、所定粒度に粉砕したのち粉体
燃焼可能な所定水分に乾燥して、前記焼却炉の予熱器に
設けた粉体バーナで粉体燃焼させ、その燃焼ガスを前記
焼却炉に供給して焼却することを特徴とするものであ
る。Further, the waste incineration method of the present invention comprises:
Waste can be separated into easily combustible waste such as paper, waste, wood, polyethylene, etc., and hardly combustible waste such as sludge, ion exchange resin, activated carbon, etc. A predetermined percentage of non-combustible waste is supplied directly to the incinerator,
While co-firing with easily combustible waste, the remainder of the difficult-to-combustible waste is dried to a predetermined powder combustible moisture and then crushed to a predetermined particle size, or crushed to a predetermined particle size and then powder burnable. After drying to a predetermined moisture, the powder is burned by a powder burner provided in a preheater of the incinerator, and the combustion gas is supplied to the incinerator for incineration.

【０００８】[0008]

【作用】上述した構成において、廃棄物を易燃焼性の廃
棄物と難燃焼性の廃棄物とに分別し、易燃焼性の廃棄物
は従来通り焼却炉で焼却処理し、難燃焼性の廃棄物は乾
燥、粉砕後または粉砕、乾燥後、焼却炉に設けた粉体バ
ーナまたは焼却炉の予熱器に設けた粉体バーナにより焼
却処理しており、難燃焼性の廃棄物が粉砕、乾燥されて
いるため、および焼却炉内での燃焼と比較して難燃焼性
の廃棄物と燃焼空気との接触が良好であるため、難燃焼
性の廃棄物も完全に焼却処理できる。また、粉体バーナ
を焼却炉本体または焼却炉の予熱器に設けているため、
焼却炉または予熱器で使用するオイル、ガス等の燃料の
使用量を削減することができる。In the construction described above, waste is separated into easily combustible waste and hardly combustible waste, and the easily combustible waste is incinerated in an incinerator as in the past, and the hardly combustible waste is discarded. After drying, crushing or crushing and drying, the material is incinerated by a powder burner installed in the incinerator or a powder burner installed in the preheater of the incinerator. Because of this, and since the contact between the incombustible waste and the combustion air is better than in combustion in an incinerator, the incombustible waste can be completely incinerated. In addition, since the powder burner is provided in the incinerator main body or incinerator preheater,
The amount of fuel such as oil and gas used in the incinerator or the preheater can be reduced.

【０００９】本発明は、稼働開始時を過ぎて、焼却炉が
正常に稼働した後には、個々の廃棄物の性状や構成割合
により変動するものの、紙、ウエス、木材、ポリエチレ
ン等の易燃焼性の廃棄物の重量に対して、最大７０％程
度の重量の汚泥、イオン交換樹脂、活性炭等の難燃焼性
の廃棄物を混焼することができるという実験による知見
に基づくものである。According to the present invention, after the start of operation, after the incinerator operates normally, although it varies depending on the properties and composition ratio of individual wastes, the flammability of paper, waste, wood, polyethylene, etc. This is based on the experimental findings that sludge, ion-exchange resin, activated carbon, and other hardly combustible waste can be mixed-fired at a weight of up to about 70% of the weight of the waste.

【００１０】[0010]

【実施例】図１は本発明の廃棄物の焼却処理方法の一例
のフローチャートを焼却炉とともに示した図である。図
１において、１は廃棄物を焼却するための縦型円筒焼却
炉等からなる焼却炉、２は焼却炉１に設けた粉体バーナ
である。図１に従って本発明を説明すると、まず廃棄物
を、紙、ウエス、木材、ポリエチレンシート等の易燃焼
性の廃棄物と、汚泥、イオン交換樹脂、活性炭等の難燃
焼性の廃棄物とに分別する。FIG. 1 is a flowchart showing an example of a waste incineration method of the present invention together with an incinerator. In FIG. 1, reference numeral 1 denotes an incinerator including a vertical cylindrical incinerator for incineration of wastes, and 2 denotes a powder burner provided in the incinerator 1. The present invention will be described with reference to FIG. 1. First, wastes are separated into easily combustible wastes such as paper, waste cloth, wood, and polyethylene sheet, and hardly combustible wastes such as sludge, ion exchange resin, and activated carbon. I do.

【００１１】次に、易燃焼性の廃棄物と混焼可能な難燃
焼性の廃棄物の所定量を求める。そして、難燃焼性の廃
棄物のうち、易燃焼性の廃棄物と混焼可能な所定割合の
難燃焼性の廃棄物は直接焼却炉１内に供給して易燃焼性
の廃棄物とともに混焼させるとともに、残りの難燃焼性
廃棄物は、粉体燃焼可能な所定水分に乾燥したのち所定
粒度に粉砕するか、所定粒度に粉砕したのち粉体燃焼可
能な所定水分に乾燥したのち、焼却炉１に設けた粉体バ
ーナ２において燃料とともに燃焼させている。Next, a predetermined amount of easily combustible waste and difficult combustible waste that can be co-fired is determined. A predetermined percentage of the non-combustible waste that can be co-fired with the easily combustible waste is directly supplied into the incinerator 1 to be co-fired with the easily combustible waste. The remaining incombustible waste is dried to a predetermined moisture capable of burning powder and then crushed to a predetermined particle size, or crushed to a predetermined particle size and then dried to a predetermined moisture capable of burning a powder, and then incinerated. In the provided powder burner 2, the fuel is burned together with the fuel.

【００１２】この粉体燃焼可能な乾燥の際、難燃焼性の
廃棄物の水分量は１０％以下にすることが好ましい。こ
れは、水分量の増加により廃棄物の廃棄物の燃焼性が落
ちるためである。また、粉砕の際、難燃焼性の廃棄物の
粒度は１００μm以下が７０％以上であると好ましい。
これは、粉砕することにより廃棄物の表面積が大きくな
り燃焼性が向上するためである。さらに、難燃焼性の廃
棄物のうち、易燃焼性の廃棄物と混焼可能な割合は、易
燃焼性の廃棄物の総量、性質等に応じて変化するが、通
常易燃焼性の廃棄物の総重量の２０〜７０％、多くの場
合３０〜５０％である。At the time of the drying in which the powder can be burned, the moisture content of the non-combustible waste is preferably set to 10% or less. This is because the flammability of the waste decreases as the water content increases. In the case of pulverization, the particle size of the non-combustible waste is preferably 100 μm or less and 70% or more.
This is because the crushing increases the surface area of the waste and improves the combustibility. In addition, the proportion of easily combustible waste that can be co-fired with easily combustible waste varies depending on the total amount and properties of easily combustible waste. 20-70% of the total weight, often 30-50%.

【００１３】たとえば、易燃焼性の廃棄物（５０％）と
難燃焼性の廃棄物（５０％）とからなる廃棄物を、単位
時間あたり１００ｋｇ（１００ｋｇ／ｈ）焼却処理する
場合には、易燃焼性の廃棄物（５０ｋｇ）と混焼可能な
難燃焼性の廃棄物の重量は、易燃焼性の廃棄物の重量の
６０％とすると３０ｋｇとなるから、これを易燃焼性の
廃棄物（５０％）と混焼する。一方、難燃焼性の廃棄物
（５０ｋｇ）から混焼する難燃焼性の廃棄物を差し引い
た残量の２０ｋｇを、好ましくは１００μm 以下の粒子
が７０％以上となるよう粉砕し、水分が１０％以下にな
るよう乾燥するか、上述したように乾燥後粉砕したの
ち、プロパンガス、ブタンガス等の補助燃料とともに粉
体バーナ２で粉体燃焼することにより、全ての廃棄物を
焼却処理することができる。For example, when incinerating 100 kg (100 kg / h) per unit time of waste composed of easily combustible waste (50%) and hardly combustible waste (50%), The weight of the non-combustible waste that can be co-fired with the combustible waste (50 kg) is 30 kg assuming 60% of the weight of the readily combustible waste. %). On the other hand, the remaining 20 kg obtained by subtracting the incombustible waste to be co-fired from the incombustible waste (50 kg) is pulverized so that particles having a particle size of 100 μm or less become 70% or more, and a water content of 10% or less. After drying or grinding as described above, all the waste can be incinerated by burning the powder with the powder burner 2 together with an auxiliary fuel such as propane gas or butane gas.

【００１４】なお、上述した粉体バーナ２における難燃
焼性の廃棄物粉体とプロパンガス、ブタンガス等の補助
燃料との混焼比率は７０対３０程度まで増加することが
出来るから、稼働開始時点等に粉体とプロパンガス、ブ
タンガス等の補助燃料との混焼を行うことによって、従
来より５０〜７０％の補助燃料の削減が可能となる。ま
た、難燃焼性の廃棄物の残部の粉体バーナ２における粉
体燃焼と、易燃焼性の廃棄物と難燃焼性の廃棄物との混
焼とを同時にする方法（同時燃焼法）以外に、難燃焼性
の廃棄物の残部の粉体バーナ２における粉体燃焼の後、
易燃焼性の廃棄物と難燃焼性の廃棄物とを混焼し、次
に、他の難燃焼性の廃棄物の残部の粉体バーナ２におけ
る粉体燃焼を行い、さらに混焼すると言ったように、交
互に燃焼を行う方法（交互燃焼法）をとっても良い。The co-firing ratio of the non-combustible waste powder and the auxiliary fuel such as propane gas and butane gas in the powder burner 2 can be increased to about 70 to 30. By co-firing the powder with an auxiliary fuel such as propane gas or butane gas, the auxiliary fuel can be reduced by 50 to 70% as compared with the conventional case. Besides the method (simultaneous combustion method) other than the method (simultaneous combustion method) in which the powder combustion in the powder burner 2 of the remainder of the non-combustible waste and the co-firing of the easily combustible waste and the non-combustible waste are simultaneously performed, After the powder combustion in the powder burner 2 of the remainder of the non-combustible waste,
It is said that the combustible waste and the non-combustible waste are mixed-fired, and then the remaining powder of the other non-combustible waste is subjected to powder combustion in the powder burner 2 and further co-firing. Alternatively, a method of alternating combustion (alternate combustion method) may be used.

【００１５】図２は本発明の廃棄物の焼却処理方法の他
の例フローチャートを焼却炉とともに示した図である。
図２に示す例において、図１に示す例と同一の部材には
同一の符号を付し、その説明を省略する。図２に示す例
において図１に示す例と異なる点は、粉体バーナ２を焼
却炉１に設けた予熱器３に設けている点であり、動作な
どは図１に示す例と全く同一である。FIG. 2 is a flowchart showing another example of a waste incineration method of the present invention together with an incinerator.
In the example shown in FIG. 2, the same members as those in the example shown in FIG. The difference between the example shown in FIG. 2 and the example shown in FIG. 1 is that the powder burner 2 is provided in a preheater 3 provided in the incinerator 1, and the operation and the like are exactly the same as in the example shown in FIG. is there.

【００１６】図１および図２に示した例では、いずれも
難燃焼性の廃棄物を前処理し、粉体バーナ２においてオ
イル、ガス等の燃料とともに燃焼させているため、焼却
炉内での燃焼と比較して燃焼空気との接触が良好である
ため、燃焼状態の悪い難燃焼性の廃棄物も完全に焼却処
理できる。また、図１の例では粉体バーナ２を焼却炉１
の本体に直接設けており、図２の例では粉体バーナ２を
予熱器３に設けているため、図１に示す例では焼却炉１
での焼却に用いる燃料の使用量、図２に示す例では予熱
器３の燃焼に用いる使用量を削減することができる。In the examples shown in FIGS. 1 and 2, both of the incombustible wastes are pre-treated and burnt together with fuel such as oil and gas in the powder burner 2, so that the waste in the incinerator is Since the contact with the combustion air is better than that of combustion, even incombustible waste having a bad combustion state can be completely incinerated. In the example of FIG. 1, the powder burner 2 is
2 and the powder burner 2 is provided in the preheater 3 in the example of FIG.
In the example shown in FIG. 2, the amount of fuel used for incineration in the incinerator can be reduced.

【００１７】実際に、難燃焼性の廃棄物を模擬して、カ
ーボン、濾過助材、Ａｌ（ＯＨ）3 、界面活性剤からな
り、水分量を１０％以下とするとともに粒度を７５μm
以下とする前処理を行ったスラッジを、噴霧焼却炉の予
熱器に設けた粉体バーナで、ブタンガスを補助燃料とし
て９００〜１１００℃の温度で焼却を行い燃焼性を評価
したところ、燃焼時間１秒以内でスラッジを完全に焼却
処理することができた。Actually, it is made of carbon, a filter aid, Al (OH) 3 , and a surfactant, simulating a non-combustible waste, and has a water content of 10% or less and a particle size of 75 μm.
The sludge that had been subjected to the following pretreatment was incinerated at a temperature of 900 to 1100 ° C. using butane gas as an auxiliary fuel with a powder burner provided in a preheater of a spray incinerator, and the combustibility was evaluated. The sludge was completely incinerated within seconds.

【００１８】[0018]

【発明の効果】以上の説明から明らかなように、本発明
によれば、廃棄物のうち難燃焼性の廃棄物の一部を粉体
バーナで焼却し、易燃焼性の廃棄物と混焼可能な難燃焼
性の廃棄物を焼却炉で焼却しているので、従来焼却処理
が難しかった難燃焼性の廃棄物も焼却可能となる。ま
た、前処理後の難燃焼性の廃棄物の一部を燃料として活
用できるため、粉体バーナで使用する補助燃料を大幅に
削減することができる。As is apparent from the above description, according to the present invention, a part of the hardly combustible waste among the waste can be incinerated with the powder burner and co-fired with the easily combustible waste. Because incombustible waste is incinerated in incinerators, it is possible to incinerate incombustible waste that has been difficult to incinerate in the past. Further, since a part of the non-combustible waste after the pretreatment can be used as fuel, the auxiliary fuel used in the powder burner can be significantly reduced.

【図面の簡単な説明】[Brief description of the drawings]

【図１】本発明の廃棄物の焼却処理方法の一例のフロー
チャートを焼却炉とともに示した図である。FIG. 1 is a diagram showing a flowchart of an example of a waste incineration method of the present invention together with an incinerator.

【図２】本発明の廃棄物の焼却処理方法の他の例のフロ
ーチャートを焼却炉とともに示した図である。FIG. 2 is a diagram showing a flowchart of another example of the waste incineration method of the present invention together with an incinerator.

【図３】従来の廃棄物の焼却処理装置の一例の構成を示
す図である。FIG. 3 is a diagram showing a configuration of an example of a conventional waste incineration apparatus.

【符号の説明】 １ 焼却炉、２ 粉体バーナ、３ 予熱器。[Explanation of symbols] 1 incinerator, 2 powder burner, 3 preheater.

───────────────────────────────────────────────────── フロントページの続き (72)発明者 可児 恒一 愛知県名古屋市瑞穂区須田町２番56号 日本碍子株式会社内 (72)発明者 山平 茂樹 愛知県名古屋市瑞穂区須田町２番56号 日本碍子株式会社内 審査官 村田 尚英 (56)参考文献 特開 昭61−167900（ＪＰ，Ａ) (58)調査した分野(Int.Cl.6，ＤＢ名) G21F 9/32 G21F 9/14 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Koichi Kani 2-56, Suda-cho, Mizuho-ku, Nagoya-shi, Aichi Japan Inside Insulator Co., Ltd. (72) Inventor Shigeki Yamahira 2-56, Suda-cho, Mizuho-ku, Nagoya-shi, Aichi No. Inspector in Nippon Insulators Co., Ltd. Naohide Murata (56) References JP-A-61-167900 (JP, A) (58) Fields investigated (Int. Cl. 6 , DB name) G21F 9/32 G21F 9/14

Claims (7)

(57)【特許請求の範囲】(57) [Claims] 【請求項１】廃棄物を紙、ウエス、木材、ポリエチレン
等の易燃焼性の廃棄物と、汚泥、イオン交換樹脂、活性
炭等の難燃焼性の廃棄物とに分別し、易燃焼性の廃棄物
と混焼可能な所定割合の難燃焼性の廃棄物を直接焼却炉
に供給して、易燃焼性の廃棄物と混焼するとともに、前
記難燃焼性の廃棄物の残部を、粉体燃焼可能な所定水分
に乾燥したのち所定粒度に粉砕するか、所定粒度に粉砕
したのち粉体燃焼可能な所定水分に乾燥して、前記焼却
炉に設けた粉体バーナで粉体燃焼させて焼却することを
特徴とする廃棄物の焼却処理方法。1. Waste is separated into easily combustible waste such as paper, waste, wood, polyethylene and the like, and difficult to combustible waste such as sludge, ion exchange resin and activated carbon. A predetermined proportion of incombustible waste that can be co-combusted with the material is directly supplied to the incinerator to co-combust with the easily combustible waste, and the remainder of the incombustible waste is powder-combustible. After drying to a predetermined moisture, pulverizing to a predetermined particle size, or pulverizing to a predetermined particle size, then drying to a predetermined moisture capable of burning powder, burning the powder with a powder burner provided in the incinerator, and incineration. Characteristic waste incineration method. 【請求項２】廃棄物を紙、ウエス、木材、ポリエチレン
等の易燃焼性の廃棄物と、汚泥、イオン交換樹脂、活性
炭等の難燃焼性の廃棄物とに分別し、易燃焼性の廃棄物
と混焼可能な所定割合の難燃焼性の廃棄物を直接焼却炉
に供給して、易燃焼性の廃棄物と混焼するとともに、前
記難燃焼性の廃棄物の残部を、粉体燃焼可能な所定水分
に乾燥したのち所定粒度に粉砕するか、所定粒度に粉砕
したのち粉体燃焼可能な所定水分に乾燥して、前記焼却
炉の予熱器に設けた粉体バーナで粉体燃焼させ、その燃
焼ガスを前記焼却炉に供給して焼却することを特徴とす
る廃棄物の焼却処理方法。2. The waste is separated into easily combustible waste such as paper, waste, wood, polyethylene and the like, and hardly combustible waste such as sludge, ion exchange resin and activated carbon. A predetermined proportion of incombustible waste that can be co-combusted with the material is directly supplied to the incinerator to co-combust with the easily combustible waste, and the remainder of the incombustible waste is powder-combustible. After drying to a predetermined moisture, pulverizing to a predetermined particle size, or pulverizing to a predetermined particle size, drying to a predetermined moisture capable of burning powder, and burning the powder with a powder burner provided in a preheater of the incinerator, A waste incineration method, comprising supplying combustion gas to the incinerator for incineration. 【請求項３】前記粉体バーナにより燃焼させる難燃焼性
の廃棄物の重量割合が、易燃焼性の廃棄物の重量の２０
〜７０％である請求項１または２記載の廃棄物の焼却処
理方法。3. The weight ratio of the non-combustible waste to be burned by the powder burner is 20% of the weight of the easily combustible waste.
The incineration method of waste according to claim 1 or 2, wherein the amount is from 70% to 70%. 【請求項４】前記粉体バーナにより燃焼させる難燃焼性
の廃棄物の重量割合が、易燃焼性の廃棄物の重量の３０
〜５０％である請求項１または２記載の廃棄物の焼却処
理方法。4. The weight ratio of the non-combustible waste to be burned by the powder burner is 30% of the weight of the easily combustible waste.
The incineration method of waste according to claim 1 or 2, wherein the amount is from 50% to 50%. 【請求項５】前記粉体バーナにより燃焼させる難燃焼性
の廃棄物の水分が１０％以下であるとともに、粒度が１
００μm 以下が７０％以上である請求項１または２記載
の廃棄物の焼却処理方法。5. The flame-retardant waste burnt by said powder burner has a moisture content of 10% or less and a particle size of 1%.
3. The waste incineration method according to claim 1 or 2, wherein the content of not more than 00 µm is 70% or more. 【請求項６】前記難燃焼性の廃棄物の粉体バーナによる
粉体燃焼と、前記易燃焼性の廃棄物と難燃焼性の廃棄物
の混焼とを、同時に行う請求項１または２記載の廃棄物
の焼却処理方法。6. The method according to claim 1, wherein the powder combustion of the incombustible waste by the powder burner and the co-firing of the inflammable waste and the incombustible waste are performed simultaneously. How to incinerate waste. 【請求項７】前記難燃焼性の廃棄物の粉体バーナによる
粉体燃焼と、前記易燃焼性の廃棄物と難燃焼性の廃棄物
との混焼とを、交互に行う請求項１または２記載の廃棄
物の焼却処理方法。7. The method according to claim 1, wherein the powder combustion of the non-combustible waste by the powder burner and the co-firing of the easily combustible waste and the non-combustible waste are performed alternately. The waste incineration method described.
JP5100295A 1995-03-10 1995-03-10 Waste incineration method Expired - Fee Related JP2892296B2 (en)

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JP5100295A JP2892296B2 (en) 1995-03-10 1995-03-10 Waste incineration method

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Application Number Priority Date Filing Date Title
JP5100295A JP2892296B2 (en) 1995-03-10 1995-03-10 Waste incineration method

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JPH08248191A JPH08248191A (en) 1996-09-27
JP2892296B2 true JP2892296B2 (en) 1999-05-17

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Publication number Priority date Publication date Assignee Title
JP2002235913A (en) * 2000-12-04 2002-08-23 Mitsui Eng & Shipbuild Co Ltd Method and apparatus for mixing wastes with sludge

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