JP3414994B2 - Waste heat recovery equipment - Google Patents
Waste heat recovery equipmentInfo
- Publication number
- JP3414994B2 JP3414994B2 JP22806197A JP22806197A JP3414994B2 JP 3414994 B2 JP3414994 B2 JP 3414994B2 JP 22806197 A JP22806197 A JP 22806197A JP 22806197 A JP22806197 A JP 22806197A JP 3414994 B2 JP3414994 B2 JP 3414994B2
- Authority
- JP
- Japan
- Prior art keywords
- flow path
- high temperature
- gas flow
- temperature side
- 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
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
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/14—Thermal energy storage
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P80/00—Climate change mitigation technologies for sector-wide applications
- Y02P80/10—Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier
- Y02P80/15—On-site combined power, heat or cool generation or distribution, e.g. combined heat and power [CHP] supply
Landscapes
- Treating Waste Gases (AREA)
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、廃熱回収装置に関
する。TECHNICAL FIELD The present invention relates to a waste heat recovery device.
【０００２】[0002]
【従来の技術】ゴミ焼却炉や灰溶融炉のような廃棄物処
理炉で発生する排ガスから廃熱回収して、例えば高温空
気を得るような場合に用いる廃熱回収装置としては、排
ガスの流路に被加熱媒体である空気を通流させる伝熱管
を配した構造のものが知られているが、排ガスに含まれ
る塩化水素などの腐食性ガスによる伝熱管の高温腐食な
どの問題があったために、加熱温度は約３００℃に制限
され、廃熱回収効率を向上することができなかった。そ
こで、廃熱回収装置として、高温側ガス流路から低温側
ガス流路に向けて耐腐食性のペレット状の蓄熱媒体を循
環移動して伝熱する蓄熱式熱交換器を用いたものが考え
られている。2. Description of the Related Art A waste heat recovery device used for recovering waste heat from exhaust gas generated in a waste treatment furnace such as a refuse incinerator or an ash melting furnace to obtain high temperature air It is known to have a structure in which a heat transfer tube that allows air, which is a medium to be heated, is placed in the passage, but there was a problem such as high temperature corrosion of the heat transfer tube due to corrosive gas such as hydrogen chloride contained in the exhaust gas. Moreover, the heating temperature was limited to about 300 ° C., and the waste heat recovery efficiency could not be improved. Therefore, as a waste heat recovery device, one using a heat storage heat exchanger that transfers heat by circulatingly moving a corrosion-resistant pellet-shaped heat storage medium from the high temperature side gas flow path to the low temperature side gas flow path is considered. Has been.
【０００３】[0003]
【発明が解決しようとする課題】しかし、ゴミ焼却炉や
灰溶融炉のような廃棄物処理炉で発生する排ガスから廃
熱回収するために、上述した蓄熱式熱交換器を用いて廃
熱回収装置を構成する場合には以下のような問題があっ
た。つまり、廃棄物処理炉で発生する排ガスには飛灰が
混入しており、そのような飛灰の中には融点が約４００
℃前後と低いものがある。そのような飛灰の混入した排
ガスを高温側ガス流路に導けば、上述の蓄熱媒体の表面
に飛灰が付着して蓄熱媒体の流動性を阻害するばかり
か、伝熱性能の劣化を招くことがあるという問題であ
る。本発明の目的は、このような従来の問題点に鑑み、
蓄熱媒体の流動性阻害や伝熱性能の劣化を招来すること
なく、廃熱回収効率を向上できる廃熱回収装置を提供す
る点にある。However, in order to recover waste heat from exhaust gas generated in a waste treatment furnace such as a refuse incinerator or an ash melting furnace, waste heat recovery is performed using the above-mentioned heat storage heat exchanger. There are the following problems when configuring the device. In other words, the fly ash is mixed in the exhaust gas generated in the waste treatment furnace, and such a fly ash has a melting point of about 400.
Some are as low as around ℃. If the exhaust gas mixed with such fly ash is guided to the high temperature side gas flow path, not only the fly ash adheres to the surface of the heat storage medium to impede the fluidity of the heat storage medium but also causes the deterioration of the heat transfer performance. It is a problem. In view of such conventional problems, the object of the present invention is to
An object of the present invention is to provide a waste heat recovery device that can improve waste heat recovery efficiency without impairing the fluidity of the heat storage medium or degrading the heat transfer performance.
【０００４】[0004]
【課題を解決するための手段】この目的を達成するため
本発明に係る廃熱回収装置の第一の特徴構成は、特許請
求の範囲の欄の請求項１に記載した通り、廃棄物処理炉
からの排ガスが導かれる高温側ガス流路から加熱対象ガ
スが導かれる低温側ガス流路に向けたペレット状の蓄熱
媒体の移動により伝熱する蓄熱式熱交換器を備え、前記
高温側ガス流路の入口側に、該流路に導かれる排ガスに
剥離剤を添加する剥離剤添加機構を設けてある点にあ
る。第二の特徴構成は、特許請求の範囲の欄の請求項２
に記載した通り、廃棄物を乾留処理する乾留装置と、前
記乾留処理により生成された乾留ガスを燃焼させる燃焼
装置とを備えるとともに、前記燃焼装置からの排ガスが
導かれる高温側ガス流路から前記乾留装置へ供給される
加熱用流体が導かれる低温側ガス流路に向けたペレット
状の蓄熱媒体の移動により伝熱する蓄熱式熱交換器を備
え、前記高温ガス流路の入口側に、該流路に導かれる排
ガスに剥離剤を添加する剥離剤添加機構を設けてある点
にある。第三の特徴構成は、特許請求の範囲の欄の請求
項３に記載した通り、上述の第一または第二の特徴構成
に加えて、前記剥離剤が、炭酸カルシウム、水酸化カル
シウム、珪藻土のいずれかである点にある。第四の特徴
構成は、特許請求の範囲の欄の請求項４に記載した通
り、上述の第一から第三のいずれかの特徴構成に加え
て、前記高温側ガス流路よりも下流側に集塵装置を設け
てある点にある。In order to achieve this object, the first characteristic configuration of the waste heat recovery apparatus according to the present invention is, as described in claim 1 of the scope of claims, a waste treatment furnace. From the high temperature side gas flow path from which the exhaust gas from is guided to the low temperature side gas flow path from which the gas to be heated is guided is transferred by a heat storage medium in the form of pellets, and the high temperature side gas flow is provided. The point is that a release agent adding mechanism for adding a release agent to the exhaust gas guided to the flow path is provided on the inlet side of the path. The second characteristic configuration is claim 2 in the claims section.
As described in 1, the dry distillation apparatus for dry distillation of waste, and a combustion apparatus for burning the dry distillation gas produced by the dry distillation treatment, and the exhaust gas from the combustion apparatus is introduced from the high temperature side gas flow path through which the exhaust gas is introduced. A heat storage type heat exchanger that transfers heat by moving a pellet-shaped heat storage medium toward a low temperature side gas flow path through which a heating fluid supplied to a carbonization device is guided is provided, and at the inlet side of the high temperature gas flow path, The point is that a release agent adding mechanism for adding a release agent to the exhaust gas guided to the flow path is provided. The third characteristic constitution is, as described in claim 3 of the scope of claims, in addition to the above-mentioned first or second characteristic constitution, the peeling agent is calcium carbonate, calcium hydroxide or diatomaceous earth. It is one of the points. The fourth characteristic configuration is, in addition to any one of the first to third characteristic configurations described above, as described in claim 4 of the scope of the claims, in the downstream side from the high temperature side gas flow path. The point is that a dust collector is provided.
【０００５】以下に作用を説明する。本発明によれば、
高温側ガス流路に導かれる前の飛灰の混入した排ガス
に、剥離剤添加機構から剥離剤を添加すると、腐食性ガ
スを吸着しさらには中和する一方、ペレット状の蓄熱媒
体の表面に付着した飛灰を剥離して蓄熱媒体の流動性を
確保するとともに、伝熱性能の劣化を防止し、安定的な
熱交換作用を維持するのである。剥離剤として、例えば
珪藻土を使用すると中和作用はないものの、吸着、剥離
作用は著しいものがありその効果は大である。剥離剤と
して、例えば炭酸カルシウム、水酸化カルシウム等を使
用すると、塩化水素などの腐食性ガスに対する中和作用
も確実なものとなり、塩素が固定（ＣａＣｌ2 ）される
ので有害なダイオキシン類の発生につながる前駆体の生
成を回避することが可能になる。このような廃熱回収装
置を、廃棄物を乾留処理する乾留装置と、前記乾留処理
により生成された乾留ガスを燃焼させる燃焼装置などを
備えたシステムに適用すると、燃焼装置からの廃熱を乾
留用の熱源として効果的に利用可能になる。さらに、排
ガスは、添加された剥離剤と、場合によっては生成され
た塩とともに集塵装置により除塵されて排気されるので
あるが、高温側ガス流路よりも下流側に設けてある集塵
装置は、熱交換により温度の低下した排ガスが流入する
ことになるので、効果な高耐熱性の集塵装置ではなく、
安価な通常のバグフィルタ、電気集塵機、サイクロン式
集塵機等を使用できるので経済性を確保できる。The operation will be described below. According to the invention,
When a stripping agent is added from the stripping agent addition mechanism to the exhaust gas mixed with fly ash before being guided to the high temperature side gas flow path, the corrosive gas is adsorbed and further neutralized, while the surface of the pellet-shaped heat storage medium is The fly ash that has adhered is peeled off to ensure the fluidity of the heat storage medium, prevent deterioration of heat transfer performance, and maintain a stable heat exchange action. If, for example, diatomaceous earth is used as a stripping agent, it does not have a neutralizing action, but its adsorption and stripping actions are remarkable, and its effect is great. If calcium carbonate, calcium hydroxide, etc. are used as a stripping agent, the neutralizing action against corrosive gases such as hydrogen chloride will be ensured, and chlorine will be fixed (CaCl 2 ), which may cause harmful dioxins. It makes it possible to avoid the formation of connected precursors. When such a waste heat recovery device is applied to a system equipped with a dry distillation device for dry distillation of waste and a combustion device for burning dry distillation gas produced by the dry distillation process, the waste heat from the combustion device is dry distilled. It can be effectively used as a heat source. Further, the exhaust gas is removed by the dust collector and exhausted together with the added stripping agent and the generated salt in some cases, but the dust collector provided downstream of the high temperature side gas flow path. Since the exhaust gas whose temperature has dropped due to heat exchange will flow in, it is not an effective high heat resistant dust collector,
Economical cost can be ensured because inexpensive ordinary bag filters, electrostatic precipitators, cyclone type precipitators, etc. can be used.
【０００６】[0006]
【発明の効果】本発明によれば、廃棄物処理炉で発生す
る排ガスから廃熱回収する場合に、蓄熱媒体の流動性阻
害や伝熱性能の劣化を招来することなく、廃熱回収効率
を向上できる廃熱回収装置を提供することができるよう
になった。According to the present invention, when recovering waste heat from the exhaust gas generated in the waste treatment furnace, the waste heat recovery efficiency can be improved without causing the fluidity of the heat storage medium and the deterioration of the heat transfer performance. It has become possible to provide an improved waste heat recovery device.
【０００７】[0007]
【発明の実施の形態】以下に本発明の実施の形態を図面
に基づいて説明する。廃熱回収装置は、各種の廃棄物処
理プラントに設置され、図２に示すように、その要部
は、廃棄物処理炉７，９からの排ガスに剥離剤を添加す
る剥離剤添加機構１０と、剥離剤が添加された排ガスか
ら廃熱回収する蓄熱式熱交換器１１とを備えて構成され
る。BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. The waste heat recovery device is installed in various waste treatment plants, and as shown in FIG. 2, its main part is a stripping agent addition mechanism 10 for adding a stripping agent to the exhaust gas from the waste treatment furnaces 7 and 9. And a heat storage heat exchanger 11 that recovers waste heat from the exhaust gas to which the stripping agent has been added.
【０００８】前記蓄熱式熱交換器１１は、耐火煉瓦で構
成された竪型筒状の構造物２７の中央部上方の排ガス流
入口２０から天井部の排ガス流出口２１に向けて形成さ
れた高温側ガス流路Ａと、該構造物２７の下方の被加熱
流体流入口２２から中央部下方の被加熱流体流出口２３
に向けて形成された低温側ガス流路Ｂと、該高温側ガス
流路Ａから該低温側ガス流路Ｂに向けてセラミック製の
ペレット状蓄熱媒体２９を循環移動させる循環機構Ｃと
で構成してあり、該蓄熱媒体２９が該高温側ガス流路Ａ
で受熱し、低温側ガス流路Ｂで給熱するように構成して
ある。The heat storage type heat exchanger 11 has a high temperature formed from an exhaust gas inlet 20 above a central portion of a vertical cylindrical structure 27 made of refractory bricks to an exhaust gas outlet 21 at a ceiling portion. The side gas flow path A and the heated fluid inlet 22 below the structure 27 to the heated fluid outlet 23 below the central portion.
And a circulation mechanism C for circulating and moving the ceramic pellet-shaped heat storage medium 29 from the high temperature side gas flow passage A to the low temperature side gas flow passage B. And the heat storage medium 29 is connected to the high temperature side gas flow path A.
The heat is received at and the heat is supplied in the low temperature side gas flow path B.
【０００９】前記循環機構Ｃは、該蓄熱媒体２９を通過
させる多数の孔が形成されたトレイ２８が多段に配され
た高温側ガス流路Ａの上方から下方へ、該蓄熱媒体２９
を分散させて落下供給する高温側分散供給部２４を、前
記排ガス流出口２１の直下に備えるとともに、該蓄熱媒
体２９を通過させる多数の孔が形成されたトレイ３１が
多段に配された低温側ガス流路Ｂの上方から下方へ、該
蓄熱媒体２９を分散させて落下供給する低温側分散供給
部３０を、前記被加熱流体流出口２３の直下に備え、低
温側ガス流路Ｂの下端部に落下集積した該蓄熱媒体２９
を前記高温側分散供給部２４に循環させるペレット搬送
機構２６を設けて構成してある。ここに、高温側ガス流
路Ａの下端部に落下集積した該蓄熱媒体２９は、絞り部
３２を介して前記低温側分散供給部２４に供給される。In the circulation mechanism C, the heat storage medium 29 is passed from the upper side to the lower side of the high temperature side gas passage A in which trays 28 having a large number of holes for passing the heat storage medium 29 are arranged in multiple stages.
A low temperature side in which a high temperature side dispersion supply section 24 for dispersing and supplying the heat is provided directly below the exhaust gas outlet 21 and trays 31 in which multiple holes for passing the heat storage medium 29 are formed are arranged in multiple stages. A low temperature side dispersion supply unit 30 that disperses and drops the heat storage medium 29 from above to below the gas flow path B is provided immediately below the heated fluid outlet 23, and the lower end of the low temperature gas flow path B is provided. The heat storage medium 29 that has fallen and accumulated on the
A pellet conveying mechanism 26 for circulating the above into the high temperature side dispersion supply section 24 is provided. Here, the heat storage medium 29 that has fallen and accumulated at the lower end of the high temperature side gas flow path A is supplied to the low temperature side dispersion supply unit 24 via the throttle unit 32.
【００１０】前記剥離剤添加機構１０は、前記廃棄物処
理炉７，９から前記蓄熱式熱交換器１１の排ガス流入口
２０への排ガス流路４０の途中に設置してあり、剥離剤
としての珪藻土の微粉末の収容部１０ａと、該排ガス流
路４０の内部に向けて珪藻土の微粉末を供給するノズル
機構１０ｂとを備えて構成してある。排ガス中に添加さ
れた剥離剤は、飛灰や腐食性ガスを吸着しながら前記蓄
熱式熱交換器１１へ流入し、前記蓄熱媒体の表面への飛
灰や腐食性ガスの付着を防止する一方、前記蓄熱媒体の
表面に付着した飛灰を剥離して蓄熱媒体の流動性を確保
するとともに、伝熱性能の劣化を防止し、安定的な熱交
換作用を維持するのである。The stripping agent adding mechanism 10 is installed in the exhaust gas passage 40 from the waste treatment furnaces 7, 9 to the exhaust gas inlet 20 of the heat storage heat exchanger 11, and serves as a stripping agent. It comprises a diatomaceous earth powder accommodating portion 10a and a nozzle mechanism 10b for supplying the diatomaceous earth powder toward the inside of the exhaust gas passage 40. The stripping agent added to the exhaust gas flows into the heat storage heat exchanger 11 while adsorbing fly ash and corrosive gas, and prevents fly ash and corrosive gas from adhering to the surface of the heat storage medium. The fly ash attached to the surface of the heat storage medium is peeled off to ensure the fluidity of the heat storage medium, prevent deterioration of the heat transfer performance, and maintain a stable heat exchange action.
【００１１】以下に上述した廃棄物処理プラントの一例
を説明する。図１に示すように、廃棄物の一例である都
市ゴミ１は破砕機２で破砕処理された後に、ロータリー
キルンでなる乾留装置３で乾留処理され、分別装置５に
より有価金属６が回収された乾留残渣は、表面溶融炉７
に投入されて溶融処理される一方、前記乾留装置３で発
生した乾留ガスは、一次処理装置４により塩化水素など
の腐食性ガスが除去された後に一部が前記表面溶融炉７
における溶融燃料として供給され、残余は前記表面溶融
炉７における燃焼排ガスを二次燃焼させる燃焼装置９に
供給される。前記燃焼装置９からの排ガスは、上述した
剥離剤添加機構１０、蓄熱式熱交換器１１を備えた廃熱
回収装置へ導かれて廃熱回収され、さらに、バグフィル
ターなどの集塵装置等を備えた排ガス処理装置１２を介
して煙突１３より排気される。An example of the above-mentioned waste treatment plant will be described below. As shown in FIG. 1, municipal waste 1, which is an example of waste, is crushed by a crusher 2 and then dry-distilled by a dry-distillation device 3 made up of a rotary kiln. The residue is the surface melting furnace 7
In the meantime, the dry distillation gas generated in the dry distillation apparatus 3 is partially charged into the surface treatment furnace 7 after the corrosive gas such as hydrogen chloride is removed by the primary processing apparatus 4.
In the surface melting furnace 7 and the rest is supplied to the combustion device 9 for secondary combustion of the combustion exhaust gas in the surface melting furnace 7. The exhaust gas from the combustion device 9 is guided to a waste heat recovery device equipped with the above-mentioned stripping agent addition mechanism 10 and the heat storage type heat exchanger 11 to recover waste heat, and further a dust collector such as a bag filter. The exhaust gas is exhausted from the chimney 13 via the exhaust gas treatment device 12 provided.
【００１２】前記蓄熱式熱交換器１１の高温側ガス流路
Ａには約１１００℃の排ガスが導かれ、被加熱ガスとし
ての空気が低温側ガス流路Ｂで約６００℃に加熱され
て、前記乾留装置３の乾留熱源として供給され、約２５
０℃まで低下した後に前記低温側ガス流路Ｂに循環する
よう構成してある。Exhaust gas of about 1100 ° C. is introduced into the high temperature side gas passage A of the heat storage type heat exchanger 11, and air as a heated gas is heated to about 600 ° C. in the low temperature side gas passage B, It is supplied as a carbonization heat source of the carbonization device 3 and has a capacity of about 25
After the temperature has dropped to 0 ° C., it is circulated in the low temperature side gas flow path B.
【００１３】上述した実施形態では、剥離剤として珪藻
土の微粉末を用いたものを説明したが、剥離剤としては
珪藻土に限定するものではなく、他に、炭酸カルシウ
ム、水酸化カルシウム等のアルカリ性物質を用いること
ができる。この場合には、上述した剥離剤としての作用
効果のみならず、排ガス中の塩化水素等の腐食性ガスと
反応して塩素が固定（ＣａＣｌ2 ）されるので有害なダ
イオキシン類の発生につながる前駆体の生成を回避する
ことが可能になる。In the above-described embodiment, the case where fine powder of diatomaceous earth is used as the stripping agent has been described. However, the stripping agent is not limited to diatomaceous earth, and other alkaline substances such as calcium carbonate and calcium hydroxide. Can be used. In this case, not only the above-described action and effect as the stripping agent, but also chlorine is fixed (CaCl 2 ) by reacting with corrosive gas such as hydrogen chloride in the exhaust gas, so that a precursor leading to generation of harmful dioxins It becomes possible to avoid the generation of the body.
【００１４】上述した実施形態では、廃熱回収装置が用
いられる廃棄物処理炉として、表面溶融炉７や二次燃焼
させる燃焼装置９を説明したが、その他にストーカ式の
ゴミ焼却炉や流動床式のゴミ焼却炉、旋回式溶融炉など
の単独または組合せによる各種の廃棄物処理炉に適用で
きる。In the above-mentioned embodiment, the surface melting furnace 7 and the combustion apparatus 9 for secondary combustion have been described as the waste treatment furnace in which the waste heat recovery apparatus is used, but in addition, a stoker type refuse incinerator or a fluidized bed is used. It can be applied to various waste treatment furnaces such as single-type refuse incinerators and swirl-type melting furnaces, either alone or in combination.
【００１５】上述した実施形態では、低温側ガス流路に
導かれる被加熱ガスとして空気を用いたものを説明し、
加熱された空気を乾留熱源として用いるものを説明した
が、被加熱ガスは空気に限るものではなく、排ガス処理
設備１２による処理後のクリーンなガスを用いてもよい
し、加熱されたガスの用途もシステムにより適宜設定す
ればよく、例えば空気の場合であれば任意の燃焼装置へ
の助燃ガスとして使用してもよい。In the above-described embodiment, the case where air is used as the heated gas introduced to the low temperature side gas flow path will be described.
Although the one in which heated air is used as the dry distillation heat source has been described, the gas to be heated is not limited to air, and clean gas after treatment by the exhaust gas treatment facility 12 may be used, or use of the heated gas. May be appropriately set depending on the system. For example, in the case of air, it may be used as an auxiliary gas to an arbitrary combustion device.
【図１】本発明による廃熱回収装置の説明図FIG. 1 is an explanatory diagram of a waste heat recovery device according to the present invention.
【図２】本発明による廃熱回収装置を適用した廃棄物処
理システムの説明図FIG. 2 is an explanatory diagram of a waste treatment system to which the waste heat recovery device according to the present invention is applied.
３ 乾留装置 ９ 燃焼装置 １０ 剥離剤添加機構 ２９ 蓄熱媒体 Ａ 高温側ガス流路 Ｂ 低温側ガス流路 3 carbonization equipment 9 Combustion device 10 Release agent addition mechanism 29 Heat storage medium A High temperature gas passage B Low temperature side gas flow path
Claims (4)
温側ガス流路から加熱対象ガスが導かれる低温側ガス流
路に向けたペレット状の蓄熱媒体の移動により伝熱する
蓄熱式熱交換器を備え、前記高温側ガス流路の入口側
に、該流路に導かれる排ガスに剥離剤を添加する剥離剤
添加機構を設けてある廃熱回収装置。1. A heat storage type heat exchange in which heat is transferred by moving a pellet-shaped heat storage medium toward a low temperature side gas flow path from which a gas to be heated is introduced from a high temperature side gas flow path from which exhaust gas from a waste treatment furnace is introduced. Waste heat recovery apparatus, which is provided with a stripping agent addition mechanism for adding a stripping agent to the exhaust gas guided to the high temperature side gas flow path on the inlet side of the high temperature side gas flow path.
乾留処理により生成された乾留ガスを燃焼させる燃焼装
置とを備えるとともに、前記燃焼装置からの排ガスが導
かれる高温側ガス流路から前記乾留装置へ供給される加
熱用流体が導かれる低温側ガス流路に向けたペレット状
の蓄熱媒体の移動により伝熱する蓄熱式熱交換器を備
え、前記高温ガス流路の入口側に、該流路に導かれる排
ガスに剥離剤を添加する剥離剤添加機構を設けてある廃
熱回収装置。2. A dry distillation device for dry distillation of waste, and a combustion device for burning dry distillation gas produced by the dry distillation process, and the high temperature side gas flow path through which exhaust gas from the combustion device is introduced. A heat storage type heat exchanger that transfers heat by moving a pellet-shaped heat storage medium toward a low temperature side gas flow path through which a heating fluid supplied to a carbonization device is guided is provided, and at the inlet side of the high temperature gas flow path, A waste heat recovery device provided with a stripping agent addition mechanism for adding a stripping agent to the exhaust gas guided to the flow path.
カルシウム、珪藻土のいずれかである請求項１または２
記載の廃熱回収装置。3. The stripping agent is calcium carbonate, calcium hydroxide, or diatomaceous earth.
Waste heat recovery device described.
装置を設けてある請求項１から３のいずれかに記載の廃
熱回収装置。4. The waste heat recovery device according to claim 1, further comprising a dust collector provided downstream of the high temperature gas passage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22806197A JP3414994B2 (en) | 1997-08-25 | 1997-08-25 | Waste heat recovery equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22806197A JP3414994B2 (en) | 1997-08-25 | 1997-08-25 | Waste heat recovery equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH1163868A JPH1163868A (en) | 1999-03-05 |
| JP3414994B2 true JP3414994B2 (en) | 2003-06-09 |
Family
ID=16870590
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP22806197A Expired - Fee Related JP3414994B2 (en) | 1997-08-25 | 1997-08-25 | Waste heat recovery equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3414994B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111780607A (en) * | 2020-07-24 | 2020-10-16 | 青海民族大学 | Solid-state fused salt energy storage tank |
-
1997
- 1997-08-25 JP JP22806197A patent/JP3414994B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH1163868A (en) | 1999-03-05 |
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