JP2002128548A - Cement production system - Google Patents
Cement production systemInfo
- Publication number
- JP2002128548A JP2002128548A JP2000319622A JP2000319622A JP2002128548A JP 2002128548 A JP2002128548 A JP 2002128548A JP 2000319622 A JP2000319622 A JP 2000319622A JP 2000319622 A JP2000319622 A JP 2000319622A JP 2002128548 A JP2002128548 A JP 2002128548A
- Authority
- JP
- Japan
- Prior art keywords
- cement
- cement production
- pyrolysis
- production system
- raw 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.)
- Pending
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/30—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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/10—Production of cement, e.g. improving or optimising the production methods; Cement grinding
-
- 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
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/10—Production of cement, e.g. improving or optimising the production methods; Cement grinding
- Y02P40/121—Energy efficiency measures, e.g. improving or optimising the production methods
-
- 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
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/10—Production of cement, e.g. improving or optimising the production methods; Cement grinding
- Y02P40/125—Fuels from renewable energy sources, e.g. waste or biomass
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】この発明は、セメント製造シ
ステムに係り、特に廃棄物の熱分解残渣を原料及び燃料
として利用するセメント製造システムに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cement production system and, more particularly, to a cement production system utilizing a pyrolysis residue of waste as a raw material and a fuel.
【０００２】[0002]
【従来の技術】近年、都市ごみ等の一般廃棄物及び産業
廃棄物は著しく増加し、これら廃棄物の処理が大きな問
題となっている。これまで各種の処理方法が試みられて
いるが、ダイオキシン等の有害物質の発生抑制、経済性
等の面から熱分解ガス化溶融方式が注目されている。こ
の熱分解ガス化溶融方式においては、まず、廃棄物が熱
分解されて熱分解ガスと残渣とに改質され、残渣は金属
とガレキ及びカーボンとに分別される。金属は有価物と
して回収され、一方ガレキ及びカーボンは熱分解ガスと
共に溶融炉に供給され、低空気比で高温燃焼されてスラ
グとして回収される。2. Description of the Related Art In recent years, general waste such as municipal waste and industrial waste have increased remarkably, and disposal of these wastes has become a major problem. Various treatment methods have been attempted so far, but the pyrolysis gasification and melting method has attracted attention from the viewpoints of suppressing the generation of harmful substances such as dioxin and economical efficiency. In this pyrolysis gasification melting method, waste is first pyrolyzed and reformed into pyrolysis gas and residue, and the residue is separated into metal, rubble, and carbon. The metals are recovered as valuables, while the rubble and carbon are supplied to the melting furnace together with the pyrolysis gas, and are burned at high temperature at a low air ratio and recovered as slag.
【０００３】[0003]
【発明が解決しようとする課題】回収されたスラグは、
砂の代用品として路盤材等への有効利用が試みられてい
るが、利用価値が低く、実際には多くのスラグが埋め立
てに供されている。そこで、廃棄物のさらなる有効利
用、再資源化が望まれている。この発明は、このような
課題を解決するためになされたもので、廃棄物を原料及
び燃料としてセメントを製造することにより廃棄物の有
効利用及び再資源化を図ることができるセメント製造シ
ステムを提供することを目的とする。SUMMARY OF THE INVENTION The recovered slag is
Attempts have been made to effectively use sand as a substitute for roadbed materials, but the utility value is low, and many slags are actually used for landfill. Therefore, further effective use and recycling of waste are desired. The present invention has been made in order to solve such problems, and provides a cement production system capable of achieving effective utilization and recycling of waste by producing cement using waste as a raw material and fuel. The purpose is to do.
【０００４】[0004]
【課題を解決するための手段】この発明に係るセメント
製造システムは、廃棄物を熱分解して熱分解ガスと熱分
解残渣とを発生させる熱分解装置と、熱分解装置で発生
した熱分解残渣を金属類とガレキ及びカーボンとに分別
する不燃物分別処理装置と、不燃物分別処理装置で分別
されたガレキ及びカーボンを原料及び燃料に利用してセ
メントを製造するセメント製造装置とを備えたものであ
る。SUMMARY OF THE INVENTION A cement production system according to the present invention comprises a pyrolyzer for thermally decomposing waste to generate a pyrolysis gas and a pyrolysis residue; a pyrolysis residue generated by the pyrolysis device. Equipment for separating cement into metals, rubble and carbon, and a cement manufacturing apparatus for producing cement using the rubble and carbon separated by the non-combustible material separation apparatus as raw materials and fuels It is.
【０００５】不燃物分別処理装置で分別されたガレキ及
びカーボンを灰化してセメント製造装置内で原料に混合
するための灰化処理装置をさらに備えることができる。
あるいは、不燃物分別処理装置で分別されたガレキ及び
カーボンを粉砕してセメント製造装置内で原料と共に焼
成するための粉砕装置を備えてもよい。また、セメント
製造装置が、熱分解装置で発生した熱分解ガスをセメン
ト焼成用熱源の一部として使用するように構成すること
もできる。この場合、熱分解装置で発生した熱分解ガス
から塩化水素を除去してセメント製造装置に供給する塩
化水素除去装置をさらに備えてもよい。熱分解装置の熱
源として、セメント製造装置からの排ガスあるいは灰化
処理装置からの排ガスを利用することもできる。[0005] It is possible to further comprise an incineration apparatus for incinerating the rubble and carbon separated in the incombustible substance separation apparatus and mixing it with the raw material in the cement production apparatus.
Alternatively, a crusher may be provided for crushing rubble and carbon separated by the incombustibles separation processing apparatus and firing the rubble and carbon together with the raw materials in the cement manufacturing apparatus. Further, the cement manufacturing apparatus may be configured to use the pyrolysis gas generated by the pyrolysis apparatus as a part of a heat source for cement firing. In this case, the apparatus may further include a hydrogen chloride removing device that removes hydrogen chloride from the pyrolysis gas generated in the pyrolysis device and supplies the hydrogen chloride to the cement manufacturing device. As a heat source of the pyrolysis device, an exhaust gas from a cement manufacturing device or an exhaust gas from an ash treatment device can be used.
【０００６】[0006]
【発明の実施の形態】以下、この発明の実施の形態を添
付図面に基づいて説明する。 実施の形態１．図１にこの発明の実施の形態１に係るセ
メント製造システムの構成を示す。前処置装置１に熱分
解装置２が接続され、熱分解装置２に不燃物分別処理装
置３を介して灰化処理装置４が接続されている。灰化処
理装置４には、セメント製造装置を構成する原料粉砕装
置５、原料調合混合装置６、焼成冷却装置７及び製品粉
砕装置８が順次接続され、焼成冷却装置７に排ガス処理
装置９が接続されている。さらに、排ガス処理装置９に
ダイオキシン分解装置１０及び重金属回収装置１１が接
続されている。Embodiments of the present invention will be described below with reference to the accompanying drawings. Embodiment 1 FIG. FIG. 1 shows a configuration of a cement production system according to Embodiment 1 of the present invention. A pyrolysis device 2 is connected to the pretreatment device 1, and an incineration device 4 is connected to the pyrolysis device 2 via a noncombustible material separation processing device 3. The raw material crushing device 5, the raw material preparation and mixing device 6, the sintering cooling device 7, and the product crushing device 8 constituting the cement manufacturing device are sequentially connected to the incineration processing device 4, and the exhaust gas processing device 9 is connected to the sintering cooling device 7. Have been. Further, a dioxin decomposition device 10 and a heavy metal recovery device 11 are connected to the exhaust gas treatment device 9.
【０００７】次に、このセメント製造システムの動作に
ついて説明する。まず、都市ごみ等の廃棄物は前処理装
置１に受け入れられ、ここで所定の大きさ、例えば２０
０ｍｍ以下の大きさに粉砕された後、熱分解装置２に供
給される。熱分解装置２としては例えば外熱キルン熱分
解炉が用いられ、空気比がほぼ０、温度４５０℃、滞留
時間１時間以上の条件下で間接加熱により廃棄物は加熱
され、熱分解ガスと熱分解残渣とに分解される。熱分解
ガスには、１％未満のＯ2、ＣＯ、Ｈ2、メタン、エタン
等の有機化合物、チャー、タール等が含まれている。一
方、熱分解残渣には、金属鉄、アルミ等の非鉄金属の
他、ガレキ及びカーボンが含まれている。熱分解残渣は
不燃物分別処理装置３にて鉄及び非鉄金属とガレキを含
むカーボンとに分別され、鉄及び非鉄金属は有価物とし
て回収される。一方、ガレキ及びカーボンは灰化処理装
置４に送られ、熱分解装置２で発生した熱分解ガスを利
用して炉内温度８００〜１０００℃、空気比１．０以上
の酸化雰囲気中で灰化される。Next, the operation of the cement production system will be described. First, waste such as municipal solid waste is received by the pretreatment device 1, where it has a predetermined size, for example, 20 m2.
After being crushed to a size of 0 mm or less, it is supplied to the thermal decomposition device 2. As the pyrolysis apparatus 2, for example, an external heat kiln pyrolysis furnace is used, and the waste is heated by indirect heating under the conditions of an air ratio of almost 0, a temperature of 450 ° C., and a residence time of 1 hour or more. Decomposed into decomposition residues. The pyrolysis gas contains less than 1% of O 2 , CO, H 2 , organic compounds such as methane and ethane, char, tar and the like. On the other hand, the pyrolysis residue contains rubble and carbon in addition to non-ferrous metals such as metallic iron and aluminum. The pyrolysis residue is separated into ferrous and non-ferrous metals and rubble-containing carbon by the non-combustible substance separation processing device 3, and the ferrous and non-ferrous metals are recovered as valuable resources. On the other hand, rubble and carbon are sent to the incineration apparatus 4 and incinerated in an oxidizing atmosphere having a furnace temperature of 800 to 1000 ° C. and an air ratio of 1.0 or more using the pyrolysis gas generated in the pyrolysis apparatus 2. Is done.
【０００８】灰化処理装置４で形成された灰分はセメン
ト製造装置の原料粉砕装置５でその他の廃棄物及び調整
成分と共に粉砕され、原料調合混合装置６にて石灰石が
調合されて混合される。このようにして調合混合された
原料は焼成冷却装置７に投入されて焼成され、セメント
クリンカが形成される。このセメントクリンカは製品粉
砕装置８で石膏及び必要に応じて凝結調整材と共に混合
粉砕され、環境調和型セメント（以下、エコセメントと
称す）が製造される。[0008] The ash formed in the incineration treatment device 4 is pulverized together with other waste and adjustment components in a raw material pulverizing device 5 of a cement production device, and limestone is prepared and mixed in a raw material mixing and mixing device 6. The raw materials thus mixed and mixed are introduced into the sintering cooling device 7 and sintered to form a cement clinker. This cement clinker is mixed and pulverized together with gypsum and, if necessary, a setting modifier in a product pulverizing device 8 to produce an environmentally friendly cement (hereinafter referred to as eco-cement).
【０００９】なお、焼成冷却装置７から発生した排ガス
は、排ガス処理装置９で急冷されることによりダイオキ
シンの再合成が抑制されると共に無害化される。さら
に、排ガスに含まれるダストがダイオキシン分解装置１
０に送られ、ここで排ガス中のダイオキシン類が加熱分
解された後、重金属回収装置１１で重金属が回収されて
山元還元される。また、ダイオキシン分解装置１０から
発生した分解排ガスはセメント製造装置の焼成冷却装置
７に戻され、これにより分解排ガス中にダイオキシン類
が残留していても完全に無害化される。The exhaust gas generated from the sintering and cooling device 7 is rapidly cooled in the exhaust gas treatment device 9 to suppress resynthesis of dioxin and render it harmless. Furthermore, the dust contained in the exhaust gas is converted into
After the dioxins in the exhaust gas are thermally decomposed, the heavy metals are recovered by the heavy metal recovery device 11 and reduced by yamamoto. Further, the decomposed exhaust gas generated from the dioxin decomposer 10 is returned to the sintering and cooling device 7 of the cement manufacturing apparatus, whereby the dioxins are completely rendered harmless even if dioxins remain in the decomposed exhaust gas.
【００１０】このようにして、廃棄物を原料としてセメ
ントを製造することができる。なお、廃棄物としては、
可燃ごみ及びその焼却残渣、下水汚泥等を含む一般廃棄
物及び産業廃棄物を対象とすることができる。熱分解装
置２として外熱キルン熱分解炉を用いたが、これに限る
ものではなく、例えば流動床熱分解炉において空気比０
〜０．１５、温度５００〜６００℃の条件下で廃棄物を
加熱して熱分解することもできる。[0010] In this way, cement can be produced from waste materials. In addition, as waste,
General waste and industrial waste including combustible waste and its incineration residue, sewage sludge, etc. can be targeted. Although an external heat kiln pyrolysis furnace was used as the pyrolysis apparatus 2, the present invention is not limited to this.
The waste can also be thermally decomposed by heating under conditions of 0.15 and 500-600 ° C.
【００１１】実施の形態２．図２にこの発明の実施の形
態２に係るセメント製造システムの構成を示す。このセ
メント製造システムは、図１に示した実施の形態１のシ
ステムにおいて、灰化処理装置４を省略し、熱分解装置
２で発生した熱分解ガスを焼成冷却装置７に導入してセ
メントの焼成用熱源の一部として使用するものである。
また、灰化処理装置４の省略に伴い、不燃物分別処理装
置３にて熱分解残渣から分別されたガレキ及びカーボン
を原料粉砕装置５に直接投入してその他の廃棄物及び調
整成分と共に粉砕している。Embodiment 2 FIG. 2 shows a configuration of a cement production system according to Embodiment 2 of the present invention. This cement manufacturing system is different from the system according to the first embodiment shown in FIG. 1 in that the incineration device 4 is omitted and the pyrolysis gas generated in the pyrolysis device 2 is introduced into the firing cooling device 7 to sinter the cement. It is used as a part of the heat source.
In addition, with the omission of the incineration treatment device 4, the rubble and carbon separated from the pyrolysis residue in the incombustibles separation treatment device 3 are directly charged into the raw material grinding device 5 and pulverized together with other wastes and adjustment components. ing.
【００１２】このように、熱分解装置２で発生した熱分
解ガスを焼成冷却装置７におけるセメント焼成用熱源の
一部として使用するため、セメント製造のエネルギーコ
ストを低減することができる。なお、実施の形態１と同
様に、不燃物分別処理装置３にて分別されたガレキ及び
カーボンを灰化処理装置４で灰化した後に原料粉砕装置
５に投入し、熱分解装置２で発生した熱分解ガスを焼成
冷却装置７に導入するようにしてもよい。この場合、灰
化処理装置４の熱源を新たに設ける必要がある。As described above, since the pyrolysis gas generated in the pyrolysis apparatus 2 is used as a part of the heat source for cement calcination in the calcination cooling apparatus 7, the energy cost of cement production can be reduced. In the same manner as in the first embodiment, rubble and carbon separated in the incombustibles separation processing apparatus 3 were ashed in the incineration processing apparatus 4 and then charged into the raw material pulverizing apparatus 5 to be generated in the thermal decomposition apparatus 2. The pyrolysis gas may be introduced into the firing cooling device 7. In this case, it is necessary to newly provide a heat source for the incineration treatment device 4.
【００１３】実施の形態３．図３にこの発明の実施の形
態３に係るセメント製造システムの構成を示す。このセ
メント製造システムは、図２に示した実施の形態２のシ
ステムにおいて、不燃物分別処理装置３にて分別された
ガレキ及びカーボンを粉砕装置１２で粉砕した後、焼成
冷却装置７に直接投入して原料と共に焼成するものであ
る。このようにしても、エネルギーコストを低減しつつ
廃棄物を原料としてセメントを製造することができる。Embodiment 3 FIG. 3 shows a configuration of a cement production system according to Embodiment 3 of the present invention. In this cement production system, in the system of the second embodiment shown in FIG. 2, rubble and carbon separated by the noncombustible material separation processing device 3 are pulverized by the pulverization device 12, and then directly supplied to the calcination cooling device 7. And fired together with the raw materials. Even in this case, it is possible to manufacture cement from waste as a raw material while reducing energy costs.
【００１４】実施の形態４．図４にこの発明の実施の形
態４に係るセメント製造システムの構成を示す。このセ
メント製造システムは、図２に示した実施の形態２のシ
ステムにおいて、熱分解装置２と焼成冷却装置７との間
に熱分解ガスから塩化水素を除去する塩化水素除去装置
１３を配設して普通セメントを製造しようとするもので
ある。実施の形態２において排ガス処理装置９に接続さ
れていたダイオキシン分解装置１０及び重金属回収装置
１１は省略されている。排ガス処理装置９で収集された
ダストは原料調合混合装置６に戻されて原料に混合さ
れ、再び焼成冷却装置７で焼成される。塩化水素除去装
置１３で塩化水素が除去された熱分解ガスを熱源の一部
としてセメントの焼成を行うので、普通セメント用のセ
メント製造装置及び排ガス処理装置を用いてエネルギー
コストを低減しつつ廃棄物を原料としてセメント製造を
行うことができる。Embodiment 4 FIG. 4 shows a configuration of a cement production system according to Embodiment 4 of the present invention. This cement manufacturing system is different from the system of the second embodiment shown in FIG. 2 in that a hydrogen chloride removing device 13 for removing hydrogen chloride from a pyrolysis gas is arranged between the pyrolysis device 2 and the calcination cooling device 7. To manufacture ordinary cement. The dioxin decomposition device 10 and the heavy metal recovery device 11 connected to the exhaust gas treatment device 9 in the second embodiment are omitted. The dust collected by the exhaust gas processing device 9 is returned to the raw material mixing and mixing device 6 and mixed with the raw material, and is fired again by the firing cooling device 7. Since the pyrolysis gas from which the hydrogen chloride has been removed by the hydrogen chloride removing device 13 is used as a part of the heat source for calcination of the cement, a cement production device for ordinary cement and an exhaust gas treatment device are used to reduce energy costs while reducing energy costs. Can be used as a raw material for cement production.
【００１５】実施の形態５．図５にこの発明の実施の形
態５に係るセメント製造システムの構成を示す。このセ
メント製造システムは、図２に示した実施の形態２のシ
ステムにおいて、熱分解装置２で発生した熱分解ガスを
焼成冷却装置７に導入する代わりに、熱分解装置２に熱
分解ガスから塩化水素を除去する塩化水素除去装置１３
を介してボイラー１４を接続したものである。塩化水素
除去装置１３で塩化水素が除去された熱分解ガスを熱源
としてボイラー１４で蒸気を発生させ、例えば、発電等
に利用することができる。塩化水素を除去した熱分解ガ
スを熱源とするので、既設のボイラー１４を使用するこ
とができる。Embodiment 5 FIG. 5 shows a configuration of a cement production system according to Embodiment 5 of the present invention. This cement production system is different from the system of Embodiment 2 shown in FIG. 2 in that the pyrolysis gas generated in the pyrolysis device 2 is introduced into the calcination cooling device 7 instead of being introduced into the pyrolysis device 2. Hydrogen chloride removing device 13 for removing hydrogen
Is connected to the boiler 14 via the. The boiler 14 generates steam using the pyrolysis gas from which hydrogen chloride has been removed by the hydrogen chloride removing device 13 as a heat source, and can be used for, for example, power generation. Since the pyrolysis gas from which hydrogen chloride has been removed is used as a heat source, the existing boiler 14 can be used.
【００１６】なお、上述した実施の形態１〜５におい
て、熱分解装置２の熱源として灰化処理装置４からの高
温の排ガスを利用することもできる。あるいは、セメン
ト製造装置からの排ガス、具体的には焼成冷却装置７の
クリンカクーラーからの排ガスを熱分解装置２の熱源と
して利用することも可能である。このようにすれば、さ
らにエネルギーコストの低減がなされる。この発明に係
るセメント製造システムは、廃棄物を熱分解して熱分解
残渣を分別するごみ処理場にセメント製造設備を併設す
ることにより実施することができるが、これらを併設し
なくても、ごみ処理場等で熱分解残渣から分別されたガ
レキ及びカーボンを適当な搬送手段でごみ処理場から離
れたセメント製造設備まで搬送し、搬送されたガレキ及
びカーボンを利用してセメント製造設備でセメントを製
造することも可能である。また、ごみ処理場等で廃棄物
の熱分解のみを行い、その結果生じた熱分解残渣を適当
な搬送手段でごみ処理場から離れたセメント製造設備ま
で搬送し、セメント製造設備で熱分解残渣からガレキ及
びカーボンを分別してセメントの製造を行うこともでき
る。In the first to fifth embodiments, high-temperature exhaust gas from the incineration unit 4 can be used as a heat source of the thermal decomposition unit 2. Alternatively, it is also possible to use the exhaust gas from the cement manufacturing apparatus, specifically, the exhaust gas from the clinker cooler of the calcination cooling device 7 as a heat source of the thermal decomposition device 2. By doing so, the energy cost can be further reduced. The cement production system according to the present invention can be implemented by installing a cement production facility in a refuse treatment plant for thermally decomposing waste and separating pyrolysis residues. The rubble and carbon separated from the pyrolysis residue at the treatment plant, etc. are transported to the cement production facility distant from the landfill by appropriate transport means, and the cement is produced at the cement production facility using the transported rubble and carbon. It is also possible. In addition, only thermal decomposition of waste is performed at a landfill, etc., and the resulting pyrolysis residue is transported to a cement manufacturing facility that is separated from the landfill by appropriate transport means, and is then separated from the pyrolysis residue by a cement manufacturing facility. It is also possible to separate cement and rubble to produce cement.
【００１７】[0017]
【発明の効果】以上説明したように、この発明によれ
ば、熱分解装置で廃棄物を熱分解し、不燃物分別処理装
置で熱分解残渣から分別されたガレキ及びカーボンを原
料及び燃料に利用してセメントを製造するので、廃棄物
の有効利用及び再資源化を図ることができる。さらに、
熱分解装置で発生した熱分解ガスをセメント焼成用熱源
の一部として使用すれば、セメント製造のエネルギーコ
ストを低減することが可能となる。また、塩化水素除去
装置により塩化水素が除去された熱分解ガスを熱源の一
部としてセメントの焼成を行えば、エネルギーコストを
低減しつつ廃棄物を原料として普通セメントの製造を行
うことができる。As described above, according to the present invention, waste is thermally decomposed by the pyrolysis apparatus, and rubble and carbon separated from the pyrolysis residue by the incombustible substance separation processing apparatus are used as raw materials and fuel. Since the cement is manufactured by the above method, the effective use and recycling of the waste can be achieved. further,
If the pyrolysis gas generated by the pyrolysis device is used as a part of the heat source for cement firing, the energy cost of cement production can be reduced. In addition, if the pyrolysis gas from which the hydrogen chloride has been removed by the hydrogen chloride removing device is used as a heat source and the cement is fired, ordinary cement can be produced from waste as a raw material while reducing energy costs.
【図１】 この発明の実施の形態１に係るセメント製造
システムの構成を示すブロック図である。FIG. 1 is a block diagram showing a configuration of a cement production system according to Embodiment 1 of the present invention.
【図２】 実施の形態２に係るセメント製造システムの
構成を示すブロック図である。FIG. 2 is a block diagram illustrating a configuration of a cement production system according to a second embodiment.
【図３】 実施の形態３に係るセメント製造システムの
構成を示すブロック図である。FIG. 3 is a block diagram showing a configuration of a cement production system according to a third embodiment.
【図４】 実施の形態４に係るセメント製造システムの
構成を示すブロック図である。FIG. 4 is a block diagram showing a configuration of a cement production system according to a fourth embodiment.
【図５】 実施の形態５に係るセメント製造システムの
構成を示すブロック図である。FIG. 5 is a block diagram showing a configuration of a cement production system according to a fifth embodiment.
１ 前処理装置、２ 熱分解装置、３ 不燃物分別処理
装置、４ 灰化処理装置、５ 原料粉砕装置、６ 原料
調合混合装置、７ 焼成冷却装置、８ 製品粉砕装置、
９ 排ガス処理装置、１０ ダイオキシン分解装置、１
１ 重金属回収装置、１２ 粉砕装置、１３ 塩化水素
除去装置、１４ ボイラー。1 Pretreatment device, 2 Pyrolysis device, 3 Incombustibles separation treatment device, 4 Ashing treatment device, 5 Raw material crushing device, 6 Raw material mixing and mixing device, 7 Firing and cooling device, 8 Product crushing device,
9 Exhaust gas treatment device, 10 Dioxin decomposition device, 1
1 heavy metal recovery unit, 12 crushing unit, 13 hydrogen chloride removal unit, 14 boiler.
フロントページの続き Ｆターム(参考） 4D004 AA46 AB03 AB07 AC05 BA02 BA03 BA05 CA04 CA07 CA15 CA24 CA27 CA30 CA32 CB09 CB13 4G012 KA02 Continued on the front page F term (reference) 4D004 AA46 AB03 AB07 AC05 BA02 BA03 BA05 CA04 CA07 CA15 CA24 CA27 CA30 CA32 CB09 CB13 4G012 KA02
Claims (7)
残渣とを発生させる熱分解装置と、 前記熱分解装置で発生した熱分解残渣を金属類とガレキ
及びカーボンとに分別する不燃物分別処理装置と、 前記不燃物分別処理装置で分別されたガレキ及びカーボ
ンを原料及び燃料に利用してセメントを製造するセメン
ト製造装置とを備えたことを特徴とするセメント製造シ
ステム。1. A pyrolyzer for thermally decomposing waste to generate a pyrolysis gas and a pyrolysis residue, and a non-combustible device for separating the pyrolysis residue generated by the pyrolysis device into metals, rubble and carbon A cement production system comprising: a material separation treatment device; and a cement production device that produces cement by using rubble and carbon separated by the incombustible separation treatment device as a raw material and a fuel.
レキ及びカーボンを灰化して前記セメント製造装置内で
原料に混合するための灰化処理装置を備えた請求項１に
記載のセメント製造システム。2. The cement production system according to claim 1, further comprising: an incineration treatment device for ashing rubble and carbon separated by the incombustibles separation treatment device and mixing the rubble and carbon with raw materials in the cement production device. .
レキ及びカーボンを粉砕して前記セメント製造装置内で
原料と共に焼成するための粉砕装置を備えた請求項１に
記載のセメント製造システム。3. The cement production system according to claim 1, further comprising a pulverizing device for pulverizing the rubble and carbon separated by the incombustibles separation processing device and firing the same together with the raw material in the cement manufacturing device.
置で発生した熱分解ガスをセメント焼成用熱源の一部と
して使用する請求項１〜３のいずれか一項に記載のセメ
ント製造システム。4. The cement production system according to claim 1, wherein the cement production apparatus uses a pyrolysis gas generated by the pyrolysis apparatus as a part of a cement calcining heat source.
ら塩化水素を除去して前記セメント製造装置に供給する
塩化水素除去装置を備えた請求項４に記載のセメント製
造システム。5. The cement production system according to claim 4, further comprising a hydrogen chloride removal device for removing hydrogen chloride from the pyrolysis gas generated by the pyrolysis device and supplying the hydrogen chloride to the cement production device.
置からの排ガスを熱源として利用する請求項１〜５のい
ずれか一項に記載のセメント製造システム。6. The cement production system according to claim 1, wherein the thermal decomposition device uses exhaust gas from the cement production device as a heat source.
らの排ガスを熱源として利用する請求項２に記載のセメ
ント製造システム。7. The cement production system according to claim 2, wherein the thermal decomposition device uses exhaust gas from the incineration treatment device as a heat source.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000319622A JP2002128548A (en) | 2000-10-19 | 2000-10-19 | Cement production system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000319622A JP2002128548A (en) | 2000-10-19 | 2000-10-19 | Cement production system |
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Family
ID=18798050
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000319622A Pending JP2002128548A (en) | 2000-10-19 | 2000-10-19 | Cement production system |
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| Country | Link |
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| JP (1) | JP2002128548A (en) |
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| JP2006206752A (en) * | 2005-01-28 | 2006-08-10 | Mitsubishi Materials Corp | System of producing fuel from waste in cement manufacturing facility and cement manufacturing method using system of producing fuel from waste |
| JP2006248838A (en) * | 2005-03-10 | 2006-09-21 | Mitsubishi Materials Corp | System for converting waste to fuel in cement production facility and method for producing cement using the system |
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| JP2010155779A (en) * | 2010-01-28 | 2010-07-15 | Mitsubishi Materials Corp | Method for treatment of halogen-containing waste material using cement production facility |
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| JP2010155779A (en) * | 2010-01-28 | 2010-07-15 | Mitsubishi Materials Corp | Method for treatment of halogen-containing waste material using cement production facility |
| WO2013005734A1 (en) * | 2011-07-04 | 2013-01-10 | 太平洋セメント株式会社 | Valuable substance recovery device and recovery method |
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