JP4033352B2 - Pyrolysis treatment equipment and pyrolysis treatment method - Google Patents

Pyrolysis treatment equipment and pyrolysis treatment method Download PDF

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JP4033352B2
JP4033352B2 JP2004221894A JP2004221894A JP4033352B2 JP 4033352 B2 JP4033352 B2 JP 4033352B2 JP 2004221894 A JP2004221894 A JP 2004221894A JP 2004221894 A JP2004221894 A JP 2004221894A JP 4033352 B2 JP4033352 B2 JP 4033352B2
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thermal decomposition
pyrolysis
temperature gas
water
gas
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JP2006035163A (en
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穣 中江
孝弘 増田
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Takuma KK
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E20/00—Combustion technologies with mitigation potential
    • Y02E20/12—Heat utilisation in combustion or incineration of waste
    • 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
    • Y02W30/82—Recycling of waste of electrical or electronic equipment [WEEE]

Description

本発明は熱分解処理設備と熱分解処理方法に関し、詳しくは、投入された廃棄物を高温ガスにより間接加熱して熱分解する熱分解装置と、この熱分解装置に前記高温ガスを循環送風機を介して循環送給する高温ガス加熱器と、加熱された前記廃棄物から発生する熱分解ガスを燃焼させると共に、燃焼させた熱分解ガスから発生した熱エネルギーを前記高温ガス加熱器に付与する熱分解ガス燃焼炉とを有する熱分解処理設備と熱分解処理方法に関する。   The present invention relates to a thermal decomposition treatment facility and a thermal decomposition treatment method. More specifically, the present invention relates to a thermal decomposition apparatus that thermally heats input waste with a high-temperature gas and thermally decomposes, and a fan that circulates the high-temperature gas in the thermal decomposition apparatus A high-temperature gas heater that circulates and supplies the heat, and heat that generates thermal energy generated from the heated pyrolysis gas and burns the pyrolysis gas generated from the heated waste. The present invention relates to a thermal decomposition treatment facility having a cracked gas combustion furnace and a thermal decomposition treatment method.

家庭ごみ等の一般廃棄物や、電化製品などの産業廃棄物を大量に処理する設備として、熱分解ガス化設備が用いられている。この設備では、ごみは高温空気による間接加熱方式で加熱されガス化される（例えば、特許文献１）。   Pyrolysis gasification equipment is used as equipment for processing large amounts of general waste such as household waste and industrial waste such as electrical appliances. In this facility, waste is heated and gasified by an indirect heating method using high-temperature air (for example, Patent Document 1).

具体的には、間接加熱キルン式ガス化溶融炉では、ごみを熱分解する熱分解ドラムに約５３０℃程度の加熱空気が送給されると共に、この加熱空気はごみを熱分解して約３００℃程度で排出されるようになっている。この間、炉内に投入されたごみ等の廃棄物は、下流側に送給されつつ熱分解ガスと熱分解残渣になり、熱分解ガスは更に下流側に送給されて廃熱ボイラ等を介して熱利用された後排出され、他方、熱分解残渣は、含有する有価物が回収された後、廃棄処分される。
特開２０００−３１４５１１号公報 Specifically, in an indirect heating kiln type gasification melting furnace, heated air of about 530 ° C. is supplied to a pyrolysis drum for thermally decomposing garbage, and this heated air pyrolyzes garbage to about 300 It is designed to be discharged at about ℃. During this time, wastes and other wastes put into the furnace become pyrolysis gas and pyrolysis residue while being sent to the downstream side, and the pyrolysis gas is further sent to the downstream side via a waste heat boiler and the like. After being used for heat, it is discharged, and on the other hand, the pyrolysis residue is disposed of after the valuable materials contained therein are recovered.
JP 2000-314511 A

しかしながら、上記従来技術は、熱分解ガス化設備に送給する高温空気を循環させるために、電力容量の大きい送風機（設備全体の１５〜２５％の電力を消費する）を使用しており、設備全体のランニングコストを高くしているだけでなく、送風機の設備コストの高騰をもたらし、しかも大型の送風機の採用による大きな振動、騒音の発生という環境上の問題も生じている。   However, the above prior art uses a blower having a large power capacity (consuming 15 to 25% of the power of the entire equipment) to circulate the high-temperature air supplied to the pyrolysis gasification equipment. Not only does the overall running cost increase, but the equipment cost of the blower increases, and there is also an environmental problem of large vibration and noise due to the use of a large blower.

そこで、本発明の目的は、上記従来技術の有する問題点に鑑みて、電力容量のより小さい送風機を用いて、消費エネルギーの低減を図り、ランニングコスト、設備コスト共に低減でき、それでいて熱分解ガス化設備に送給する高温空気を従来技術通り確実に循環可能な熱分解処理設備と熱分解処理方法を提供することにある。   Therefore, in view of the above-mentioned problems of the prior art, the object of the present invention is to reduce the consumption energy by using a blower with a smaller power capacity, and to reduce both the running cost and the equipment cost. An object of the present invention is to provide a thermal decomposition treatment facility and a thermal decomposition treatment method capable of reliably circulating high-temperature air supplied to the facility as in the prior art.

上記課題は、請求項記載の発明により達成される。すなわち、本発明に係る熱分解処理設備の特徴構成は、投入された廃棄物を高温ガスにより間接加熱して熱分解する熱分解装置と、この熱分解装置に前記高温ガスを循環送風機を介して循環送給する高温ガス加熱器と、加熱された前記廃棄物から発生する熱分解ガスを燃焼させると共に、燃焼させた熱分解ガスから発生した熱エネルギーを前記高温ガス加熱器に付与する熱分解ガス燃焼炉とを有していて、前記高温ガス加熱器と熱分解装置との間で形成される循環経路の途中に、水の導入機構が設けられていることにある。 The above object can be achieved by the invention described in the claims. That is, the characteristic configuration of the thermal decomposition treatment facility according to the present invention includes a thermal decomposition apparatus that thermally heats input waste with high-temperature gas and thermally decomposes the high-temperature gas to the thermal decomposition apparatus via a circulation blower. A high-temperature gas heater that circulates and a pyrolysis gas that burns the pyrolysis gas generated from the heated waste, and that imparts thermal energy generated from the burned pyrolysis gas to the high-temperature gas heater And a combustion furnace, and a water introduction mechanism is provided in the middle of a circulation path formed between the high-temperature gas heater and the thermal decomposition apparatus.

この構成によれば、循環される高温ガスに水が混入されることにより、高温ガスの比熱を効果的に大きくできて、循環させるガス量を少なくできると共に、高温ガスが空気であると比重を小さくできるため、従来技術の大型送風機に代えてより小型の送風機を使用しても、従来技術と同様な機能を発揮させることができる。従って、電力容量の大きい送風機を用いる必要はなく、設備全体の電力消費に占める割合の大きい送風機の消費電力を確実に低減できる。 According to this configuration, when water is mixed into the circulated hot gas, the specific heat of the hot gas can be effectively increased, the amount of gas to be circulated can be reduced, and the specific gravity can be increased if the hot gas is air. Since it can be made smaller, even if a smaller blower is used instead of the conventional large blower, the same function as the conventional technique can be exhibited. Therefore, it is not necessary to use a blower having a large power capacity, and the power consumption of the blower having a large proportion of the power consumption of the entire facility can be reliably reduced.

その結果、電力容量のより小さい送風機を用いて、消費エネルギーの低減を図り、ランニングコスト、設備コスト共に低減でき、それでいて熱分解ガス化設備に送給する高温空気を従来技術通り確実に循環可能な熱分解処理設備を提供することができた。   As a result, using a blower with a smaller power capacity, energy consumption can be reduced, both running costs and equipment costs can be reduced, and high-temperature air supplied to pyrolysis gasification equipment can be reliably circulated as in the prior art. Pyrolysis treatment equipment could be provided.

前記水と前記高温ガスとの割合を５〜３０容量％：９５〜７０容量％となるように前記水を添加することが好ましい。 It is preferable to add the water so that the ratio of the water and the high-temperature gas is 5 to 30% by volume: 95 to 70% by volume .

この構成によれば、熱分解装置の高温ガスは温度が高いため、水を、極めて短時間に均質な気体として高温ガスに混合でき、その比熱を効果的に大きくできると共に、比重を小さくできる。水と前記高温ガスとの割合において、水が５容量％未満の添加であると、効果は少なく好ましくない。 According to this configuration, since the high-temperature gas of the thermal decomposition apparatus has a high temperature, water can be mixed with the high-temperature gas as a homogeneous gas in a very short time, and the specific heat can be effectively increased and the specific gravity can be decreased. In proportion of water and the hot gas, the water is the addition of less than 5 volume%, the effect is less undesirable.

また、本発明に係る熱分解処理方法の特徴構成は、熱分解装置に投入された廃棄物を高温ガスにより間接加熱して熱分解し、前記熱分解装置への前記高温ガスの送給を循環送給高温ガス加熱器より循環送風機を介して行い、加熱された前記廃棄物から発生する熱分解ガスを燃焼させると共に、燃焼させた熱分解ガスから発生した熱エネルギーを前記高温ガス加熱器に付与する方法において、前記高温ガス加熱器と熱分解装置との間で形成される循環経路の途中に、水を導入することにある。 Further, the thermal decomposition method according to the present invention is characterized in that the waste introduced into the thermal decomposition apparatus is indirectly heated by high-temperature gas to thermally decompose, and the supply of the high-temperature gas to the thermal decomposition apparatus is circulated. A high temperature gas heater is used to circulate the pyrolysis gas generated from the heated waste, and the thermal energy generated from the burned pyrolysis gas is applied to the high temperature gas heater. In this method, water is introduced in the middle of a circulation path formed between the high-temperature gas heater and the thermal decomposition apparatus.

この構成によれば、電力容量のより小さい送風機を用いて、消費エネルギーの低減を図り、ランニングコスト、設備コスト共に低減でき、それでいて熱分解ガス化設備に送給する高温空気を従来技術通り確実に循環可能な熱分解処理方法を提供できる。   According to this configuration, using a blower with a smaller power capacity, energy consumption can be reduced, and both running costs and equipment costs can be reduced, yet high-temperature air to be supplied to the pyrolysis gasification equipment can be reliably ensured as in the prior art. A recyclable thermal decomposition method can be provided.

前記前記水と前記高温ガスとの割合を５〜３０容量％：９５〜７０容量％となるように前記水を添加することが好ましい。 The water is preferably added so that the ratio of the water and the high-temperature gas is 5 to 30% by volume: 95 to 70% by volume .

この構成によれば、水を、極めて短時間に均質な気体として高温ガスに混合でき、その比熱を効果的に大きくできると共に、比重を小さくできる。 According to this configuration, water can be mixed with the high-temperature gas as a homogeneous gas in a very short time, and the specific heat can be effectively increased and the specific gravity can be decreased.

本発明の実施形態を、図面を参照して詳細に説明する。図１は、本実施形態に係る熱分解処理設備の概略構成を示す。   Embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 shows a schematic configuration of a thermal decomposition treatment facility according to the present embodiment.

この熱分解処理設備は、投入された各種ごみを熱分解する熱分解装置である熱分解ドラム１と、この熱分解ドラム１に投入されたごみを間接加熱して熱分解するための高温ガスである高温空気を、加熱空気循環送風機２により循環しつつ送り込む高温ガス加熱器である高温空気加熱器３と、熱分解されたごみから発生する熱分解ガスを燃焼して高温空気加熱器３に高温の熱エネルギーを熱交換して付与する熱分解ガス燃焼炉４などとから構成されていると共に、後述するように、高温空気加熱器３と熱分解ドラム１との間での高温空気の循環経路途中に水又は水蒸気を添加する機構が設けられている特徴を有する。   This thermal decomposition treatment facility includes a thermal decomposition drum 1 which is a thermal decomposition apparatus for thermally decomposing various types of waste, and a high-temperature gas for indirect heating of the waste input to the thermal decomposition drum 1 for thermal decomposition. A high-temperature air heater 3 that is a high-temperature gas heater that feeds a certain high-temperature air while being circulated by the heated air circulation blower 2, and a high-temperature air heater 3 that is combusted with pyrolysis gas generated from pyrolyzed waste And a pyrolytic gas combustion furnace 4 for exchanging the heat energy of the hot air, and a high-temperature air circulation path between the high-temperature air heater 3 and the pyrolysis drum 1 as will be described later. It has a feature that a mechanism for adding water or water vapor is provided on the way.

ごみは熱分解ドラム１に投入される前に、廃棄物ピット（図示略）などに貯留されると共に、必要に応じて破砕機（図示略）により適度な大きさに破砕されたり、乾燥、脱水装置（図示略）等により脱水されたりすることが、操業上好ましい。熱分解ドラム１はキルン式になっていると共に、内部に多数の配管が配置されていて、この配管内を高温空気加熱器３から送給された約５３０℃程度の高温空気が通流することにより、投入されたごみを高温間接加熱しつつ、下流側に回転・搬送して熱分解する。従って、ごみは無酸素または低酸素雰囲気で約４５０℃程度で熱分解されることになる。高温空気は、加熱空気循環送風機２により高温空気加熱器３に送給されて循環経路を形成する。   Waste is stored in a waste pit (not shown) or the like before being put into the pyrolysis drum 1, and is crushed to an appropriate size by a crusher (not shown), or dried and dehydrated as necessary. It is preferable from the operation that it is dehydrated by an apparatus (not shown) or the like. The pyrolysis drum 1 is of a kiln type, and a large number of pipes are arranged inside, and high temperature air of about 530 ° C. supplied from the high temperature air heater 3 flows through the pipes. Thus, the charged waste is pyrolyzed by rotating and transporting it downstream while indirectly heating the waste at high temperature. Accordingly, the waste is thermally decomposed at about 450 ° C. in an oxygen-free or low-oxygen atmosphere. The high-temperature air is supplied to the high-temperature air heater 3 by the heated air circulation blower 2 to form a circulation path.

熱分解されたごみは、熱分解ガスと熱分解残渣になり、熱分解ガスは熱分解ガス燃焼炉４に送給されると共に、熱分解残渣は金属その他の有価物と灰などに選別される。   The pyrolyzed waste becomes pyrolysis gas and pyrolysis residue, and the pyrolysis gas is supplied to the pyrolysis gas combustion furnace 4 and the pyrolysis residue is sorted into metal and other valuable materials and ash. .

熱分解ガスは、必要に応じて熱分解残渣中のカーボン残渣や下流側で発生した集塵残渣などと共に、熱分解ガス燃焼炉４に送給され、燃焼される。熱分解ガス燃焼炉４から生じた高温ガスは多様であるが、例えば、輻射式の場合は８００〜９００℃程度、プレート式の場合は５５０〜６５０℃程度の熱エネルギーを有しており、高温空気加熱器３に送給されて、熱交換される。   The pyrolysis gas is supplied to the pyrolysis gas combustion furnace 4 and combusted together with the carbon residue in the pyrolysis residue and the dust collection residue generated downstream as required. The high temperature gas generated from the pyrolysis gas combustion furnace 4 is various. For example, the radiation type has a thermal energy of about 800 to 900 ° C. and the plate type has a thermal energy of about 550 to 650 ° C. It is fed to the air heater 3 to exchange heat.

高温空気加熱器３は、熱分解ガス燃焼炉４より送給された高温ガスから熱エネルギーを熱交換され、熱分解ドラム１に送給するための高温空気を送り出す。高温空気加熱器３での熱交換方式は、特に限定されるものではない。高温空気加熱器３に熱交換した高温ガスは約４００℃程度になっており、誘引通風機５によって廃熱ボイラー（図示略）などに送給されて再利用されると共に、一部は、再度循環送風機６を介して熱分解ガス燃焼炉４に送給されて再利用されるようになっている。   The high temperature air heater 3 exchanges heat energy from the high temperature gas supplied from the pyrolysis gas combustion furnace 4 and sends out high temperature air to be supplied to the pyrolysis drum 1. The heat exchange method in the high temperature air heater 3 is not particularly limited. The high-temperature gas exchanged with the high-temperature air heater 3 has a temperature of about 400 ° C. and is sent to the waste heat boiler (not shown) by the induction fan 5 to be reused. It is supplied to the pyrolysis gas combustion furnace 4 through the circulation fan 6 and reused.

高温空気加熱器３から熱分解ドラム１に向けて送り出された高温空気は、熱分解ドラム１の入口付近の配管に、水または水蒸気が導入されるようになっている。水または水蒸気の導入方式は、特に限定されないが、ノズル等から噴霧するようにすると高温空気に均一に混入されて搬送されるので好ましい。水は、特に加熱されている必要はなく、３００℃以上の高温空気に触れて短時間の内に気体状態となり、また水蒸気は、一般に工場内には蒸気配管が配置されているので、この配管から分岐・延長することにより、容易に導入できる。空気分子量が２８．９７であるのに対して、水分子量は１８であるため、水または水蒸気を導入することにより、循環される加熱ガスは確実に軽量になる。   The high-temperature air sent from the high-temperature air heater 3 toward the pyrolysis drum 1 is such that water or water vapor is introduced into a pipe near the inlet of the pyrolysis drum 1. The method of introducing water or water vapor is not particularly limited, but spraying from a nozzle or the like is preferable because it is uniformly mixed and transported in high-temperature air. Water does not need to be heated in particular, and is in a gaseous state within a short time by touching high-temperature air of 300 ° C. or higher. It can be easily introduced by branching / extending from. The air molecular weight is 28.97, while the water molecular weight is 18. Therefore, the introduction of water or water vapor ensures that the heated gas to be circulated is light.

このように水または水蒸気を循環経路に導入すると、高温空気の比熱が大きくなると共に、比重が小さくなることから、循環する空気量を低減できると共に、圧力損失を効果的に低減できる。つまり、高温空気の比熱が大きくなることにより、同一熱量の空気を送給するのに少ない空気量で済むと共に、比重が小さく軽量になることにより、空気を循環させる送風機の動力を小さくでき、加熱空気循環送風機２として小型で消費電力量の小さい機種を用いることができることになる。特に、圧力損失は、風量（風速）の二乗に比例するため、空気量を低減すると確実に圧力損失は低減できる。その結果、熱分解処理設備を操業する上で、消費電力の大きい送風機の消費電力を効果的に低減でき、ランニングコストを低くできるのみならず、小型の送風機を使用できることから、設備コストの低減、設置スペースの低減が達成でき、送風機を小型にできることから周囲環境に与える振動、騒音も小さくできる。のみならず、空気の比熱の増大により、輻射伝熱能力を大きくでき、高温空気加熱器３の熱交換能力が増大することになり、結果的に高温空気加熱器３の装置容量を小型にできる。   When water or water vapor is introduced into the circulation path in this way, the specific heat of high-temperature air increases and the specific gravity decreases, so that the amount of circulating air can be reduced and pressure loss can be effectively reduced. In other words, by increasing the specific heat of high-temperature air, a small amount of air is required to feed the same amount of air, and by reducing the specific gravity and weight, the power of the blower that circulates the air can be reduced. As the air circulation blower 2, it is possible to use a model that is small and consumes little power. In particular, since the pressure loss is proportional to the square of the air volume (wind speed), the pressure loss can be reliably reduced by reducing the air volume. As a result, in operating the thermal decomposition treatment equipment, it is possible to effectively reduce the power consumption of the blower with large power consumption, not only lowering the running cost, but also using a small blower, reducing the equipment cost, Reduction of installation space can be achieved, and since the blower can be made smaller, vibration and noise given to the surrounding environment can also be reduced. In addition, the increase in the specific heat of the air can increase the radiant heat transfer capacity, and the heat exchange capacity of the high-temperature air heater 3 can be increased. As a result, the apparatus capacity of the high-temperature air heater 3 can be reduced. .

以下に、熱分解ドラム１と高温空気加熱器３とから形成される上記循環経路途中の、熱分解ドラム１の入口側近傍に、循環される高温空気に対して常温の水約３０容量％をノズル（図示略）から噴霧した場合（実施例）について、水を噴霧しない従来技術の場合（比較例）と共に、加熱空気循環送風機２の消費電力を比較する試験を行った。その結果を表１に示す。   Below, about 30% by volume of water at room temperature with respect to the circulated high temperature air in the vicinity of the inlet side of the thermal decomposition drum 1 in the middle of the circulation path formed by the thermal decomposition drum 1 and the high temperature air heater 3. About the case (Example) which sprayed from a nozzle (not shown), the test which compares the power consumption of the heating air circulation air blower 2 with the case of the prior art which does not spray water (comparative example) was done. The results are shown in Table 1.

Figure 0004033352
表１の結果より、実施例の場合は、圧力損失を低減できると共に、送風機の消費電力を約２５％低くでき、大幅な消費電力の削減が可能であり、それだけ小型の送風機を使用できることがわかる。
Figure 0004033352
 From the results of Table 1, in the case of the example, it can be seen that the pressure loss can be reduced, the power consumption of the blower can be reduced by about 25%, the power consumption can be significantly reduced, and a small blower can be used as much. .

〔別実施の形態〕
（１）上記実施形態では、熱分解装置として熱分解ドラムを使用した例を挙げて説明したが、本発明を適用できる熱分解装置としてはキルン式の熱分解ドラムに限定されるものではなく、高温ガスを循環させる機構を備えた加熱装置全般に広く適用できる。
（２）上記実施形態では、熱分解ドラム１の入口付近の配管に、水または水蒸気が導入されるようになっている例を示したが、熱分解ドラム１の下流側に水または水蒸気が導入されるようになっていても良い。 [Another embodiment]
(1) In the above-described embodiment, an example in which a pyrolysis drum is used as the pyrolysis device has been described. However, the pyrolysis device to which the present invention can be applied is not limited to a kiln-type pyrolysis drum, The present invention can be widely applied to all heating devices having a mechanism for circulating hot gas.
(2) In the above embodiment, water or water vapor is introduced into the pipe near the inlet of the pyrolysis drum 1, but water or water vapor is introduced downstream of the pyrolysis drum 1. You may come to be.

本発明の一実施形態に係る熱分解処理設備の概略構成図The schematic block diagram of the thermal decomposition processing equipment which concerns on one Embodiment of this invention.

符号の説明Explanation of symbols

１ 熱分解装置
２ 循環送風機
３ 高温ガス加熱器
４ 熱分解ガス燃焼炉 DESCRIPTION OF SYMBOLS 1 Thermal decomposition apparatus 2 Circulation fan 3 High temperature gas heater 4 Pyrolysis gas combustion furnace

Claims (2)

投入された廃棄物を高温ガスにより間接加熱して熱分解する熱分解装置と、この熱分解装置に前記高温ガスを循環送風機を介して循環送給する高温ガス加熱器と、加熱された前記廃棄物から発生する熱分解ガスを燃焼させると共に、燃焼させた熱分解ガスから発生した熱エネルギーを前記高温ガス加熱器に付与する熱分解ガス燃焼炉とを有する熱分解処理設備において、
前記高温ガス加熱器と熱分解装置との間で形成される循環経路の途中に、水の導入機構が設けられ、
前記水と前記高温ガスとの割合を５〜３０容量％：９５〜７０容量％となるように前記水を添加することを特徴とする熱分解処理設備。 A thermal decomposition apparatus for thermally decomposing the input waste by indirect heating with a high-temperature gas, a high-temperature gas heater for circulating and feeding the high-temperature gas to the thermal decomposition apparatus via a circulation blower, and the heated waste In a pyrolysis treatment facility having a pyrolysis gas combustion furnace that burns pyrolysis gas generated from an object and imparts thermal energy generated from the burned pyrolysis gas to the high-temperature gas heater,
In the middle of the circulation path formed between the high-temperature gas heater and the thermal decomposition apparatus, a water introduction mechanism is provided ,
The thermal decomposition treatment facility , wherein the water is added so that the ratio of the water and the high-temperature gas is 5 to 30% by volume: 95 to 70% by volume . 熱分解装置に投入された廃棄物を高温ガスにより間接加熱して熱分解し、前記熱分解装置への前記高温ガスの送給を循環送給高温ガス加熱器より循環送風機を介して行い、加熱された前記廃棄物から発生する熱分解ガスを燃焼させると共に、燃焼させた熱分解ガスから発生した熱エネルギーを前記高温ガス加熱器に付与する熱分解処理方法において、
前記高温ガス加熱器と熱分解装置との間で形成される循環経路の途中に、水を導入するように構成し、
前記水と前記高温ガスとの割合を５〜３０容量％：９５〜７０容量％となるように前記水を添加することを特徴とする熱分解処理方法。 The waste introduced into the thermal decomposition apparatus is thermally heated by indirect heating with a high-temperature gas, and the high-temperature gas is supplied to the thermal decomposition apparatus from a circulating supply high-temperature gas heater through a circulation blower and heated. In the pyrolysis treatment method of burning the pyrolysis gas generated from the waste generated and applying the thermal energy generated from the burned pyrolysis gas to the high-temperature gas heater,
In the middle of a circulation path formed between the high-temperature gas heater and the thermal decomposition apparatus, water is introduced ,
The thermal decomposition method , wherein the water is added so that the ratio of the water and the high-temperature gas is 5 to 30% by volume: 95 to 70% by volume .
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