JP2006212594A - Method for treating exhaust gas generated when waste is dried - Google Patents

Method for treating exhaust gas generated when waste is dried Download PDF

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JP2006212594A
JP2006212594A JP2005030218A JP2005030218A JP2006212594A JP 2006212594 A JP2006212594 A JP 2006212594A JP 2005030218 A JP2005030218 A JP 2005030218A JP 2005030218 A JP2005030218 A JP 2005030218A JP 2006212594 A JP2006212594 A JP 2006212594A
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waste
clinker
exhaust gas
drying
cement
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Yasuhiro Kawamura
保宏 河村
Masahiro Maruyama
昌宏 丸山
Yoji Kuboi
洋司 窪井
Morihisa Yokota
守久 横田
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Ube Corp
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Ube Industries Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To detoxify a malodorous compound contained in the exhaust gas generated when waste is dried in order to utilize waste as a part of a raw material or fuel of cement. <P>SOLUTION: The malodorous compound-containing exhaust gas generated when waste is dried is brought into contact with a clinker, preferably, with a clinker layer of a clinker cooler. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

本発明は、廃棄物を乾燥した際に発生する排ガス中に含まれる臭気性化合物を、セメント製造設備を利用して無害化する方法および廃棄物の利用を促進するための廃棄物の処理方法に関する。 The present invention relates to a method for detoxifying odorous compounds contained in exhaust gas generated when waste is dried using a cement manufacturing facility and a method for treating waste for promoting the use of waste. .

近年セメント工場は、プラスチック廃材や汚泥等の廃棄物をセメント製造の燃料や原料として有効利用するための重要な拠点の1つに数えられている。廃棄物の中で、汚泥は含水率が比較的高いためセメント製造設備に供給する前に予め乾燥することが考えられる。この場合、汚泥を乾燥した後に発生する排ガスには臭気性化合物が含まれるため、そのまま大気に放出することは避けなければならず、何らかの処理を施す必要がある。 In recent years, cement factories have been counted as one of the important bases for effectively using wastes such as plastic waste and sludge as fuel and raw materials for cement production. Among the wastes, sludge has a relatively high water content, so it may be pre-dried before being supplied to the cement production facility. In this case, since the odorous compound is contained in the exhaust gas generated after drying the sludge, it must be avoided to release it to the atmosphere as it is, and it is necessary to perform some kind of treatment.

下記に示す特許文献１によれば、有機汚泥を密閉状態でセメントキルンへ投入する方法が提案されている。この場合、汚泥の前処理が不要といった長所がある反面、前述のとおり汚泥は多くの水分を保有しているため、多量の汚泥をセメントキルンへ投入すると、多量の水蒸気が発生しキルン内のガス容量が増大するため、キルン誘引ファンの余力がない場合は生産量を減少せざるを得ない。また、水の蒸発でキルン内の熱量が奪われることにより、キルンの熱量原単位の悪化を余儀なくされるという問題がある。また、特許文献２によれば、汚泥の乾燥設備から排出される臭気ガスを電子線照射により消臭処理し、副生したオゾンを活性炭分解又は熱分解する方法が開示されている。しかし、大掛かりな装置が必要であり、複雑な運転制御が必要である。
特開平１０−１９２８９６号公報 特開２００３−２０５２１８号公報 According to Patent Document 1 shown below, a method of introducing organic sludge into a cement kiln in a sealed state is proposed. In this case, there is an advantage that the pretreatment of the sludge is unnecessary, but since the sludge has a lot of moisture as described above, if a large amount of sludge is thrown into the cement kiln, a large amount of water vapor is generated and the gas in the kiln is Since the capacity increases, the production volume must be reduced when there is no remaining capacity of the kiln induction fan. Moreover, there is a problem in that the amount of heat in the kiln is deprived due to the evaporation of water, so that the basic unit of heat quantity of the kiln is forced to deteriorate. Patent Document 2 discloses a method in which odorous gas discharged from a sludge drying facility is deodorized by electron beam irradiation, and ozone generated as a by-product is decomposed or pyrolyzed. However, a large-scale device is required and complicated operation control is required.
JP-A-10-192896 JP 2003-205218 A

本発明は、セメント製造設備の操業に支障をきたすことなく、また新たに大掛かりな消臭設備を設置することなく、既存のセメント製造設備を利用して汚泥等の廃棄物を乾燥する際に発生する排ガス中の臭気性化合物を処理するための処理方法および廃棄物をセメント製造の原料や燃料の一部に有効利用するための廃棄物の処理方法を提供することを目的とする。 The present invention occurs when drying waste such as sludge using existing cement production equipment without causing any trouble in the operation of the cement production equipment or installing a new large-scale deodorization equipment. An object of the present invention is to provide a treatment method for treating odorous compounds in exhaust gas and waste treatment method for effectively using the waste as a raw material for cement production and a part of fuel.

本発明者らは、上記課題を解決するために鋭意研究を重ねた結果、臭気性化合物をクリンカと接触させると、消臭されることを見出し本発明に至った。
すなわち、本発明は、廃棄物を熱源により乾燥する際に発生する排ガスをクリンカに接触させることを特徴とする排ガスの処理方法および処理設備である。また別の発明としては、廃棄物を熱源により乾燥する際に発生する排ガスをクリンカに接触させるとともに、乾燥後の廃棄物はセメント製造設備に供することを特徴とする廃棄物の処理方法および処理設備である。 As a result of intensive studies to solve the above-mentioned problems, the present inventors have found that deodorization occurs when an odorous compound is brought into contact with a clinker, leading to the present invention.
That is, the present invention is an exhaust gas treatment method and treatment facility characterized in that exhaust gas generated when drying waste with a heat source is brought into contact with a clinker. As another invention, a waste processing method and a processing facility characterized in that exhaust gas generated when drying waste with a heat source is brought into contact with a clinker, and the waste after drying is supplied to a cement manufacturing facility. It is.

本発明によれば、大掛かりな消臭設備を設置することなく、既存のセメント製造設備を利用して簡便に臭気性化合物を無害化することが可能で、悪臭問題による環境への悪影響が解消される。また、廃棄物は乾燥が行なわれ水分が減少しているので、セメント製造にも支障をきたすことはなく、廃棄物をセメント製造の原料や燃料の一部に有効利用が可能である。さらに、廃棄物の乾燥には、セメント工場の排熱を利用することにより、排熱を冷却するための冷却装置の負荷を低減し、セメント製造プロセス全体の効率的な熱利用を促進することが可能である。 According to the present invention, it is possible to easily detoxify odorous compounds using existing cement manufacturing equipment without installing a large-scale deodorizing equipment, and the adverse environmental impact caused by the bad odor problem is eliminated. The In addition, since the waste is dried and its moisture content is reduced, the cement production is not hindered, and the waste can be effectively used as a raw material and fuel for cement production. In addition, waste drying can use the waste heat of the cement plant to reduce the load on the cooling device to cool the waste heat and promote efficient heat utilization throughout the cement manufacturing process. Is possible.

図１を用いて本発明を詳細に説明する。図１は本発明を実施するセメント製造設備の概略図である。汚泥等の廃棄物１８は乾燥機１４に供給され乾燥される。乾燥機１４から排出される臭気性化合物を含む排ガス１５は、クリンカクーラー９のクリンカ層に導入される。クリンカクーラー９において臭気性化合物は無害化され、クリンカ排ガス１６としてクリンカクーラー集塵機１０を経由して大気に放出される。 The present invention will be described in detail with reference to FIG. FIG. 1 is a schematic view of a cement production facility for carrying out the present invention. Waste 18 such as sludge is supplied to the dryer 14 and dried. The exhaust gas 15 containing the odorous compound discharged from the dryer 14 is introduced into the clinker layer of the clinker cooler 9. Odorous compounds are rendered harmless in the clinker cooler 9 and are released as clinker exhaust gas 16 to the atmosphere via the clinker cooler dust collector 10.

乾燥機１４で乾燥された汚泥等の廃棄物２１は、セメント調合原料２２共に、原料ミル６で粉砕され、粉体原料２０として、予熱装置４に投入する。該粉体原料は、予熱装置で８００〜９００℃に加熱される。仮焼成炉３には微粉炭１７が吹き込まれ、微粉炭の燃焼熱で粉体原料中の付着水分の蒸発や結晶水の分解を行い、さらに石灰石などの分解を行いロータリーキルン１に粉体原料が供給される。 Waste 21 such as sludge that has been dried by the dryer 14 is pulverized by the raw material mill 6 together with the cement preparation raw material 22, and is charged into the preheating device 4 as a powder raw material 20. The powder raw material is heated to 800 to 900 ° C. by a preheating device. The pulverized coal 17 is blown into the calcining furnace 3, and the combustion heat of the pulverized coal evaporates the adhering moisture in the powder material and decomposes the crystallization water, further decomposes limestone and the like, and the powder material is put in the rotary kiln 1. Supplied.

粉体原料は、ロータリーキルンで約１４５０℃までに加熱され、クリンカ鉱物の一部が生成する。その後、該クリンカクーラー９に導入され、空気で急冷されて全てのクリンカ鉱物が生成される。 The powder raw material is heated to about 1450 ° C. in a rotary kiln to produce a part of clinker mineral. Thereafter, it is introduced into the clinker cooler 9 and rapidly cooled with air to produce all clinker minerals.

ここで、クリンカクーラーをクリンカの流れる方向に沿ってロータリーキルン側をクリンカクーラー入口、反キルン側をクーラー出口と定義する。
該セメントクーラーに導入される冷却空気量は、１ｋｇのクリンカに対し、２ないし２．５Ｎｍ３であり、その結果クリンカは約１４５０℃から約８０℃まで冷却される。クリンカクーラー入口に近づくほど、高温なクリンカ層を保有している。 Here, in the clinker cooler, the rotary kiln side is defined as the clinker cooler inlet and the anti-kiln side is defined as the cooler outlet along the direction in which the clinker flows.
The amount of cooling air introduced into the cement cooler is 2 to 2.5 Nm 3 for 1 kg of clinker, so that the clinker is cooled from about 1450 ° C. to about 80 ° C. The closer to the clinker cooler entrance, the higher the temperature of the clinker layer.

本発明に用いられる廃棄物は、臭気性化合物を有する廃棄物を指し、例えば下水汚泥、し尿汚泥等の汚泥や、製紙スラッジ、コーヒー粕や茶殻等の食品廃棄物などが挙げられる。汚泥中の水分含有率は一般に総重量の２０〜９９重量％であるが、これら全てが使用可能である。 The waste used in the present invention refers to a waste having an odorous compound, and includes, for example, sludge such as sewage sludge and human waste sludge, and food waste such as paper sludge, coffee cake and tea shells. The water content in the sludge is generally 20-99% by weight of the total weight, but all of these can be used.

臭気性化合物とは人に不快感を与える化合物の総称であり、例えば炭化水素、ケトン、アルデヒド、低級アルコール、アミン、硫黄化合物等の低沸点化合物が挙げられる。その中で、本願発明は硫黄化合物に対して特に効果を奏する。 An odorous compound is a general term for compounds that give an unpleasant feeling to humans, and examples thereof include low boiling point compounds such as hydrocarbons, ketones, aldehydes, lower alcohols, amines, and sulfur compounds. Among them, the present invention is particularly effective for sulfur compounds.

乾燥用熱源としては、スチーム、熱媒、電気ヒータ等特に制限されないが、排熱を有効利用する観点から、工場の排熱を利用することが好ましく、図２に示す３００℃ないし４００℃で酸素濃度が２ないし５容量％であるセメントキルン排ガス１９や、図３に示す２００℃ないし４００℃で酸素濃度が約２１容量％であるクリンカクーラー排ガス１６が更に好ましく、クリンカクーラー排ガス１６が特に好ましい。乾燥用熱源としてセメントキルン排ガスとクリンカクーラー排ガスを併用しても良い。廃棄物と工場の排熱の接触は、直接的でも間接的でも良い。乾燥後の廃棄物の水分濃度は必ずしもゼロ付近にする必要はなく、セメント製造プロセスの操業に悪影響を与えない範囲において水分濃度は適宜選択可能である。 The drying heat source is not particularly limited, such as steam, a heat medium, or an electric heater. However, from the viewpoint of effectively using the exhaust heat, it is preferable to use the exhaust heat of the factory, and oxygen at 300 to 400 ° C. shown in FIG. A cement kiln exhaust gas 19 having a concentration of 2 to 5% by volume and a clinker cooler exhaust gas 16 having an oxygen concentration of about 21% by volume at 200 ° C. to 400 ° C. shown in FIG. 3 are more preferable, and a clinker cooler exhaust gas 16 is particularly preferable. Cement kiln exhaust gas and clinker cooler exhaust gas may be used in combination as a heat source for drying. Contact between waste and factory waste heat may be direct or indirect. The moisture concentration of the waste after drying is not necessarily close to zero, and the moisture concentration can be appropriately selected within a range that does not adversely affect the operation of the cement manufacturing process.

臭気性化合物を含む排ガスをクリンカクーラーのクリンカ層と接触させる際は、排ガスをクリンカクーラーのクリンカ層に直接導入しても良いが、冷却用空気に排ガスを予備混合してから導入しても良い。導入手段としては、ブロアーが挙げられる。その際、臭気性化合物を含む排ガスはクリンカクーラーのクリンカ層に複数箇所から導入するほうがクリンカと臭気性化合物の接触面積を確保する観点から有利である。また、排ガスの臭気性化合物濃度に応じて、排ガスの導入位置を変えても良い。すなわち、臭気性化合物濃度が高い排ガスはクリンカクーラー入口に近いクリンカ層に、また臭気性化合物濃度が低い排ガスはクリンカクーラー出口に近いクリンカ層に導入すればよい。 When contacting exhaust gas containing odorous compounds with the clinker layer of the clinker cooler, the exhaust gas may be introduced directly into the clinker layer of the clinker cooler, or may be introduced after premixing the exhaust gas with cooling air. . Examples of the introducing means include a blower. At that time, it is more advantageous to introduce the exhaust gas containing the odorous compound into the clinker layer of the clinker cooler from a plurality of locations from the viewpoint of securing the contact area between the clinker and the odorous compound. Moreover, you may change the introduction position of waste gas according to the odorous compound density | concentration of waste gas. That is, the exhaust gas having a high odorous compound concentration may be introduced into the clinker layer near the clinker cooler inlet, and the exhaust gas having a low odorous compound concentration may be introduced into the clinker layer near the clinker cooler outlet.

クリンカの温度は通常８０℃から１４５０℃でありこの範囲において本発明を実施することに特に制限はないが、好ましくは３５０℃から１４５０℃、より好ましくは４００℃から６５０℃である。クリンカは公知の性状のものが全て使用可能である。 The temperature of the clinker is usually 80 ° C. to 1450 ° C., and there is no particular limitation on the practice of the present invention in this range, but it is preferably 350 ° C. to 1450 ° C., more preferably 400 ° C. to 650 ° C. Any known clinker can be used.

廃棄物を予備乾燥した後の廃棄物は、セメント製造設備においてキルン窯尻、仮焼成炉および原料粉砕装置のうち少なくとも一箇所に供給すればよい。供給手段としては、ベルトコンベア輸送が挙げられる。廃棄物が大きければ、原料粉砕装置に供給するのが、該廃棄物を所望の粒度に解砕できるので有利である。石灰石等のセメント調合原料と、乾燥された廃棄物の混合比は、セメント製造装置の稼動に支障をきたさない程度であれば適宜変更可能だが、例えばセメント調合原料１００重量％に対して、廃棄物は２０重量％、好ましくは１５重量％である。 What is necessary is just to supply the waste after pre-drying a waste to at least one location among a kiln kiln bottom, a temporary baking furnace, and a raw material grinding | pulverization apparatus in a cement manufacturing equipment. Examples of the supply means include belt conveyor transportation. If the waste is large, it is advantageous to supply it to the raw material crusher because the waste can be crushed to a desired particle size. The mixing ratio of the limestone and other cement preparation materials and the dried waste can be appropriately changed as long as it does not interfere with the operation of the cement manufacturing apparatus. Is 20% by weight, preferably 15% by weight.

以下では、実施例を挙げて本発明を更に詳細に説明するが、本発明の範囲はこれらによって限定されるものではなく、本発明の趣旨を逸脱しない範囲において種々の設計変更が可能である。 Hereinafter, the present invention will be described in more detail with reference to examples. However, the scope of the present invention is not limited thereto, and various design changes can be made without departing from the spirit of the present invention.

[実施例１]
図４に示す実験設備を使用して上記発明の消臭効果を確認した。内径３３ｍｍのアルミナ管１０７（Ａｌ２Ｏ３：９９．６％）に、セメントクリンカ１０６を１５０グラム（長さ；２５０ｍｍ）充填した。充填したセメントクリンカ１０６の粒径は、３.３５ないし６．７０ｍｍの範囲である。
セメントクリンカ１０６を充填したアルミナ管１０７は、電気炉１０８を貫通してセメントクリンカ１０６が３５０℃になるように加熱した。セパラブルフラスコ１０５に下水汚泥１０１を３.５ｇ入れ、マントルヒーターで容器内温度を１００℃まで加熱し、乾燥用混合ガス１０２（Ｏ２：２容積％、Ｎ２：９８容積％）をセパラブルフラスコ１０５に１リットル毎分送入して、アルミナ管１０７入口ガス１０３と出口ガス１０４を採取しガス分析し消臭効果を確認した。ガス分析計は、サーマルディスオプションガスクロマトグラフ質量分析計（ＴＣＴ-ＧＣ／ＭＳ：Ａｇｉｌｅｎｔ Ｔｅｃｈｎｏｌｏｇｉｓｅｓ製）を使用した。結果を表１に示す。その結果、クリンカ層出口ガス中に臭気化合物は検出されなかった。尚、本実施例において下水汚泥の代わりに製紙スラッジを用い他の操作は同様に行った場合も、表１と同様な結果を得た。 [Example 1]
The deodorizing effect of the said invention was confirmed using the experimental installation shown in FIG. An alumina tube 107 (Al 2 O 3 : 99.6%) having an inner diameter of 33 mm was filled with 150 grams (length: 250 mm) of cement clinker 106. The particle size of the filled cement clinker 106 is in the range of 3.35 to 6.70 mm.
The alumina tube 107 filled with the cement clinker 106 passed through the electric furnace 108 and was heated so that the cement clinker 106 became 350 ° C. 3.5 g of sewage sludge 101 is put into a separable flask 105, the inside temperature of the container is heated to 100 ° C. with a mantle heater, and the drying mixed gas 102 (O 2 : 2% by volume, N 2 : 98% by volume) is separable. One liter was fed into the flask 105 every minute, and the inlet gas 103 and outlet gas 104 of the alumina tube 107 were collected and analyzed by gas to confirm the deodorizing effect. As the gas analyzer, a thermal dispersible gas chromatograph mass spectrometer (TCT-GC / MS: manufactured by Agilent Technologies) was used. The results are shown in Table 1. As a result, no odorous compound was detected in the clinker layer outlet gas. In this example, when paper sludge was used instead of sewage sludge and other operations were performed in the same manner, the same results as in Table 1 were obtained.

Figure 2006212594
Figure 2006212594

[実施例２]
実施例１を基に、セメント工場での実用化実験を実施した。図２において、３９０℃、酸素濃度が５容量％のキルン排ガス１９の一部を乾燥機１４の乾燥熱源として直接導入し、下水汚泥を乾燥し、乾燥機排ガス１５をクリンカクーラー９のクリンカ温度が３５０乃至６５０℃を保有する場所に導入した。乾燥機排ガス１５とクーラー出口排ガス１６を採取しガス分析し消臭効果を確認した。ガス分析計は、サーマルディスオプションガスクロマトグラフ質量分析計（ＴＣＴ-ＧＣ／ＭＳ：Ａｇｉｌｅｎｔ Ｔｅｃｈｎｏｌｏｇｉｓｅｓ製）を使用した。結果を表２に示す。
その結果、クーラー出口排ガス中に臭気化合物は検出されなかった。 [Example 2]
Based on Example 1, the practical application experiment in the cement factory was implemented. In FIG. 2, a part of the kiln exhaust gas 19 having a temperature of 390 ° C. and an oxygen concentration of 5% by volume is directly introduced as a drying heat source of the dryer 14, the sewage sludge is dried, and the dryer exhaust gas 15 is cooled by the clinker temperature of the clinker cooler 9. It introduced into the place which hold | maintains 350-650 degreeC. The dryer exhaust gas 15 and the cooler outlet exhaust gas 16 were sampled and analyzed for gas to confirm the deodorizing effect. As the gas analyzer, a thermal dispersible gas chromatograph mass spectrometer (TCT-GC / MS: manufactured by Agilent Technologies) was used. The results are shown in Table 2.
As a result, no odorous compound was detected in the exhaust gas from the cooler outlet.

Figure 2006212594
Figure 2006212594

[実施例３]
図３において、２７０℃、酸素濃度が２１容量％のクリンカクーラー排ガス１６の一部を乾燥機１４の乾燥熱源として直接導入し、排ガスをクリンカクーラー９のクリンカ温度が３５０〜６５０℃を保有する場所に導入した。クリンカクーラーに入る乾燥機排ガス１５とクーラー出口排ガス１６を採取しガス分析し消臭効果を確認した。ガス分析計は、サーマルディスオプションガスクロマトグラフ質量分析計（ＴＣＴ-ＧＣ／ＭＳ：Ａｇｉｌｅｎｔ Ｔｅｃｈｎｏｌｏｇｉｓｅｓs製）を使用した。結果を表３に示す。
その結果、クーラー出口排ガス中に臭気化合物は検出されなかった。 [Example 3]
In FIG. 3, a part of the clinker cooler exhaust gas 16 having a temperature of 270 ° C. and an oxygen concentration of 21% by volume is directly introduced as a drying heat source of the dryer 14, and the clinker temperature of the clinker cooler 9 is maintained at 350 to 650 ° C. Introduced. The dryer exhaust gas 15 and the cooler outlet exhaust gas 16 entering the clinker cooler were collected and analyzed by gas to confirm the deodorizing effect. As the gas analyzer, a thermal dispersible gas chromatograph mass spectrometer (TCT-GC / MS: manufactured by Agilent Technologies) was used. The results are shown in Table 3.
As a result, no odorous compound was detected in the exhaust gas from the cooler outlet.

Figure 2006212594
Figure 2006212594

[実施例４乃至６]
乾燥用混合ガス１０２を空気（酸素濃度２１容量％）、セメントクリンカ１０６の温度を４３０、４８０、５３０℃に変えた以外は、実施例１と同様に乾燥後の排ガスを処理した。処理後のカルモア値（Σ値）を表４に示す。
ここで、カルモア値（Σ値）とは、におい分子の測定値を表す指標であり、カルモア値の測定は、「携帯型におい測定装置ＫＡＬＭＯＡ−Σ（株式会社カルモア製）を使用した。その結果、排ガスをクリンカで処理する前（カルモア値；１２００）と比べて、カルモア値が大幅に低下した。 [Examples 4 to 6]
Exhaust gas after drying was treated in the same manner as in Example 1 except that the drying mixed gas 102 was changed to air (oxygen concentration 21% by volume) and the temperature of the cement clinker 106 was changed to 430, 480, and 530 ° C. Table 4 shows the calmore values (Σ values) after processing.
Here, the calmore value (Σ value) is an index representing the measured value of the odor molecule, and the calmore value was measured using “a portable odor measuring apparatus KALMOA-Σ (manufactured by Calmore). The calmore value was greatly reduced as compared with before the exhaust gas was treated with the clinker (calmore value; 1200).

Figure 2006212594
Figure 2006212594

[比較例１乃至４]
クリンカ処理を行なわなかった以外は、実施例４と同様に乾燥後の排ガスを処理した。クリンカ処理を行わず、かつ下水汚泥の乾燥用ガスが窒素の場合の結果（比較例４）を合わせて表５に示す。尚、処理前の排ガスのカルモア値は１２００であった。その結果、クリンカを通過させなかった場合は、カルモア値は微減に留まり（比較例１乃至３）、また単なる加熱のみではカルモア値の低下はほとんど認められなかった。 [Comparative Examples 1 to 4]
Exhaust gas after drying was treated in the same manner as in Example 4 except that the clinker treatment was not performed. Table 5 shows the results (comparative example 4) when the clinker treatment is not performed and the drying gas of sewage sludge is nitrogen. In addition, the calmore value of the exhaust gas before the treatment was 1200. As a result, when the clinker was not passed, the calmore value was only slightly reduced (Comparative Examples 1 to 3), and almost no decrease in the calmore value was observed only by simple heating.

Figure 2006212594
Figure 2006212594

本発明は、汚泥等の廃棄物に含まれる臭気性化合物を無害化するとともに、該廃棄物をセメント製造の原料や燃料の一部として使用する際に利用可能である。 INDUSTRIAL APPLICATION While making the odorous compound contained in wastes, such as sludge, harmless, this invention can be utilized when using this waste as a raw material or fuel of cement manufacture.

本発明を実施するセメント製造設備の概略図である。It is the schematic of the cement manufacturing equipment which implements this invention. 本発明をキルン排ガスを利用して実施するセメント製造装置の概略図である。It is the schematic of the cement manufacturing apparatus which implements this invention using a kiln exhaust gas. 本発明をクリンカクーラー排ガスを利用して実施するセメント製造装置の概略図である。It is the schematic of the cement manufacturing apparatus which implements this invention using a clinker cooler exhaust gas. 本発明の実施例１の概略図である。It is the schematic of Example 1 of this invention.

符号の説明Explanation of symbols

１ ロータリーキルン
２ キルン窯尻
３ 仮焼炉
４ 予熱装置
５ 調湿塔
６ 原料ミル
７ 原料ミル集塵機
８ 煙突
９ クリンカクーラー
１０ クリンカクーラー集塵機
１１ 石炭ミル
１２ 石炭ミル集塵機
１３ 仕上ミル
１４ 廃棄物乾燥機
１５ 廃棄物乾燥後の排ガス
１６ クリンカクーラー排ガス
１７ 微粉炭
１８ 廃棄物
１９ キルン排ガス
２０ 粉体原料
２１ 乾燥された廃棄物
２２ セメント調合原料
１０１ 下水汚泥
１０２ 乾燥用混合ガス
１０３ アルミナ管入口ガス
１０４ アルミナ管出口ガス
１０５ セパラブルフラスコ
１０６ セメントクリンカ
１０７ アルミナ管
１０８ 電気炉 DESCRIPTION OF SYMBOLS 1 Rotary kiln 2 Kiln kiln bottom 3 Calciner 4 Preheating apparatus 5 Humidity control tower 6 Raw material mill 7 Raw material mill dust collector 8 Chimney 9 Clinker cooler 10 Clinker cooler dust collector 11 Coal mill 12 Coal mill dust collector 13 Finishing mill 14 Waste dryer 15 Disposal Exhaust gas after drying of waste 16 Clinker cooler exhaust gas 17 Pulverized coal 18 Waste 19 Kiln exhaust gas 20 Powder raw material 21 Dried waste 22 Cement mix raw material 101 Sewage sludge 102 Mixing gas for drying 103 Alumina pipe inlet gas 104 Alumina pipe outlet gas 105 Separable flask 106 Cement clinker 107 Alumina tube 108 Electric furnace

Claims (10)

廃棄物を熱源により乾燥する際に発生する排ガスを、クリンカに接触させることを特徴とする排ガスの処理方法。 An exhaust gas treatment method comprising contacting exhaust gas generated when drying waste with a heat source with a clinker. クリンカは、クリンカクーラーのクリンカ層である請求項１記載の排ガスの処理方法。 The exhaust gas treatment method according to claim 1, wherein the clinker is a clinker layer of a clinker cooler. 前記熱源が、セメントキルン排ガスおよび/またはクリンカクーラー排ガスである請求項１または２記載の排ガスの処理方法。 The exhaust gas treatment method according to claim 1 or 2, wherein the heat source is cement kiln exhaust gas and / or clinker cooler exhaust gas. 廃棄物を熱源により乾燥する乾燥手段と、前記乾燥手段により発生する排ガスをクリンカに接触させる供給手段とを備える排ガスの処理装置。 An exhaust gas treatment apparatus comprising: drying means for drying waste with a heat source; and supply means for bringing the exhaust gas generated by the drying means into contact with a clinker. 廃棄物を熱源により乾燥する乾燥手段と、前記乾燥手段により発生する排ガスをクリンカクーラーのクリンカ層に接触させる供給手段とを備える排ガスの処理装置。 An exhaust gas treatment apparatus comprising: drying means for drying waste with a heat source; and supply means for bringing the exhaust gas generated by the drying means into contact with a clinker layer of a clinker cooler. 廃棄物を熱源により乾燥する際に発生する排ガスをクリンカに接触させるとともに、乾燥後の廃棄物はセメント製造設備に供することを特徴とする廃棄物の処理方法。 A waste treatment method, wherein exhaust gas generated when drying waste with a heat source is brought into contact with a clinker, and the waste after drying is supplied to a cement production facility. クリンカは、クリンカクーラーのクリンカ層である請求項６記載の廃棄物の処理方法。 The waste treatment method according to claim 6, wherein the clinker is a clinker layer of a clinker cooler. セメント製造設備が、キルン窯尻、仮焼成炉およびセメント原料の粉砕装置から選ばれる少なくとも一つ以上である請求項６または７記載の廃棄物の処理方法。 The waste treatment method according to claim 6 or 7, wherein the cement production facility is at least one selected from a kiln kiln bottom, a temporary firing furnace, and a cement raw material crusher. 廃棄物を熱源により乾燥する乾燥手段と、前記乾燥手段により発生する排ガスをクリンカに接触させる供給手段と、乾燥手段により乾燥された廃棄物をセメント製造設備に供する供給手段とを備える廃棄物の処理装置。 Disposal of waste comprising drying means for drying waste with a heat source, supply means for contacting exhaust gas generated by the drying means with a clinker, and supply means for supplying waste dried by the drying means to a cement production facility apparatus. 廃棄物を熱源により乾燥する乾燥手段と、前記乾燥手段により発生する排ガスをクリンカクーラーのクリンカ層に接触させる供給手段と、乾燥手段により乾燥された廃棄物をセメント製造設備に供する供給手段とを備える廃棄物の処理装置。 Drying means for drying waste by a heat source, supply means for contacting exhaust gas generated by the drying means with a clinker layer of a clinker cooler, and supply means for supplying waste dried by the drying means to a cement production facility Waste treatment equipment.
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JP4513872B2 (en) * 2008-02-18 2010-07-28 三菱マテリアル株式会社 Method and apparatus for measuring exhaust gas odor of cement manufacturing facility
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RU2777126C1 (en) * 2019-07-05 2022-08-02 Кавасаки Дзюкогио Кабусики Кайся Sludge treatment method and cement production system
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