JP2000239050A - Treatment of plant waste fluid - Google Patents
Treatment of plant waste fluidInfo
- Publication number
- JP2000239050A JP2000239050A JP11042134A JP4213499A JP2000239050A JP 2000239050 A JP2000239050 A JP 2000239050A JP 11042134 A JP11042134 A JP 11042134A JP 4213499 A JP4213499 A JP 4213499A JP 2000239050 A JP2000239050 A JP 2000239050A
- Authority
- JP
- Japan
- Prior art keywords
- waste liquid
- cement clinker
- cement
- firing 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.)
- Granted
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B7/00—Hydraulic cements
- C04B7/24—Cements from oil shales, residues or waste other than slag
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Heat Treatment Of Water, Waste Water Or Sewage (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、工場廃液処理方法
に関し、特に、セメント工場において工場廃液を利用し
ながら処理を行う工場廃液処理方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for treating a factory effluent, and more particularly to a method for treating a factory effluent in a cement plant while utilizing the factory waste.
【０００２】[0002]
【従来の技術】従来、清掃用のモップ等を洗浄した後に
残るモップ廃液、現像処理液や定着処理液の写真廃液等
の工場廃液は、水分が略々９７％以上と比較的高く、主
に、脱水後の残査を焼却処理した後埋立処理されてき
た。2. Description of the Related Art Conventionally, factory waste liquids such as photographic waste liquids such as mop waste liquids, developing processing liquids and fixing processing liquids remaining after cleaning a cleaning mop or the like have a relatively high water content of about 97% or more. After dehydration, the residue has been incinerated and landfilled.
【０００３】一方、セメント工場においては、近年、下
水汚泥、焼却灰等をセメント原料として利用しながら処
理する等、環境問題に積極的に取り組んでいるが、例え
ば、特開平８−２７６１９９号公報等において、汚泥を
乾燥または添加剤添加等の処理をすることなく、セメン
トクリンカ焼成系のキルンの窯尻または仮焼炉に導入し
て処理する技術等が提案されている。On the other hand, in recent years, cement plants have been actively working on environmental problems such as treating sewage sludge and incinerated ash while utilizing them as cement raw materials. For example, Japanese Patent Application Laid-Open No. 8-276199 and the like A technology has been proposed in which sludge is introduced into a kiln butt or calciner of a cement clinker firing system kiln without drying or adding an additive or the like.
【０００４】[0004]
【発明が解決しようとする課題】しかし、上述のよう
に、モップ廃液、写真廃液等の工場廃液を処理するに
は、脱水設備、焼却設備、脱水後の排水処理設備等を必
要とし、設備費が高額になるとともに、脱水、焼却のた
めの運転コストも高く、処理に多額のコストを要してい
た。また、焼却灰等については、最終処分場に埋め立て
る必要があり、最終処分場の能力にも限界があるため、
これら工場廃液の処理に苦慮していた。However, as described above, dewatering facilities, incineration facilities, wastewater treatment facilities after dehydration, etc. are required to treat factory waste liquids such as mop waste liquids and photographic waste liquids. However, the operation cost for dehydration and incineration was high, and the treatment required a large amount of cost. In addition, incineration ash, etc., must be reclaimed at the final disposal site, and the capacity of the final disposal site is limited.
It was difficult to treat these factory effluents.
【０００５】一方、セメント工場においても、比較的水
分の高い工場廃棄物については、直接セメントクリンカ
焼成系のキルンの窯尻または仮焼炉に多量に注入する
と、焼成系等の安定運転を乱す等の理由から、多量に直
接処理することは困難である。[0005] On the other hand, in a cement plant, if a large amount of relatively high-moisture plant waste is directly injected into the kiln butt or calciner of a kiln of a cement clinker firing system, the stable operation of the firing system or the like is disturbed. For this reason, it is difficult to directly process large quantities.
【０００６】そこで、本発明は、上記従来の工場廃液処
理方法における問題点に鑑みてなされたものであって、
脱水、焼却等のための処理設備が不要で、最終処分場に
焼却灰等を埋め立てる必要がなく、セメントクリンカ焼
成系の安定運転を阻害することのないセメント工場での
工場廃液処理方法を提供することを目的とする。Accordingly, the present invention has been made in view of the problems in the above-mentioned conventional method for treating industrial waste liquid,
There is no need for a treatment facility for dehydration, incineration, etc., and there is no need to bury incineration ash, etc. in a final disposal site, and to provide a method for treating a factory waste liquid in a cement plant that does not hinder stable operation of a cement clinker firing system. The purpose is to:
【０００７】[0007]
【課題を解決するための手段】上記目的を達成するた
め、請求項１記載の発明は、工場廃液処理方法であっ
て、工場廃液を、セメントクリンカ焼成系からの排ガス
またはセメントクリンカ焼成系へ供給されるセメント原
料に添加することにより処理することを特徴とする。In order to achieve the above object, an invention according to claim 1 is a method for treating a factory waste liquid, wherein the factory waste liquid is supplied to an exhaust gas from a cement clinker firing system or a cement clinker firing system. It is characterized in that it is treated by adding it to the cement material to be treated.
【０００８】この方法によれば、工場廃液中の水分は、
セメントクリンカ焼成系からの排ガスまたはセメントク
リンカ焼成系へ供給されるセメント原料に添加された後
蒸発し、そのほとんどが最終的にセメント製造工程の系
外に排出されるとともに、残った工場廃液中の無機質成
分を含む残査はセメントの原料として資源化されるた
め、工場廃液を有効利用しつつ処理することができる。[0008] According to this method, the water in the factory effluent is
After being added to the exhaust gas from the cement clinker firing system or the cement raw material supplied to the cement clinker firing system, it evaporates, and most of it is finally discharged out of the cement manufacturing process system, and the remaining factory waste liquid Since the residue containing inorganic components is recycled as a raw material for cement, it can be treated while effectively utilizing the factory waste liquid.
【０００９】また、この処理によって、セメントクリン
カ焼成系のキルン等には全く影響を与えることがないた
め、セメントクリンカ焼成系の安定運転を維持しながら
工場廃液の処理を行うことができる。Further, since this treatment does not affect the kiln of the cement clinker firing system at all, it is possible to treat the factory waste liquid while maintaining the stable operation of the cement clinker firing system.
【００１０】請求項２記載の発明は、上記方法の好まし
い態様の一つとして、セメントクリンカ焼成系のプレヒ
ータと電気集塵機の間に位置する調湿装置において、該
プレヒータからの排ガスに工場廃液を添加することを特
徴とする。According to a second aspect of the present invention, as one of preferred embodiments of the above method, in a humidity control device located between a preheater of a cement clinker firing system and an electric dust collector, a factory waste liquid is added to exhaust gas from the preheater. It is characterized by doing.
【００１１】これによって、セメントクリンカ焼成系の
プレヒータからの排ガスの調温、調湿を行いながら工場
廃液を処理することができる。This makes it possible to treat the waste liquid from the factory while controlling the temperature and humidity of the exhaust gas from the preheater of the cement clinker firing system.
【００１２】また、請求項３記載の発明は、上記方法の
好ましい態様の一つとして、セメントクリンカ焼成系へ
供給されるセメント原料を粉砕する原料粉砕機の内部あ
るいは直前において、該原料に工場廃液を添加すること
を特徴とする。According to a third aspect of the present invention, there is provided a method as described above, wherein the raw material is added to a raw material crusher in or immediately before a raw material crusher for crushing a raw material for cement supplied to a cement clinker firing system. Is added.
【００１３】これによって、セメントクリンカ焼成系へ
供給されるセメント原料を粉砕する原料粉砕機の振動を
防止しながら工場廃液を処理することができる。This makes it possible to treat the factory waste liquid while preventing the vibration of the raw material crusher for crushing the cement raw material supplied to the cement clinker firing system.
【００１４】さらに、請求項４記載の発明は、工場廃液
処理方法であって、工場廃液を、セメント工場での焼却
処理のためセメントクリンカ焼成系に供給される汚泥に
添加することにより処理することを特徴とする。Further, the present invention according to claim 4 is a method for treating a factory waste liquid, wherein the factory waste liquid is treated by adding it to sludge supplied to a cement clinker firing system for incineration treatment in a cement factory. It is characterized by.
【００１５】この方法でも、工場廃液中の水分は、セメ
ントクリンカ焼成系において蒸発し最終的にセメント製
造工程の系外に排出されるとともに、残った工場廃液中
の無機質成分を含む残査はセメントの原料として資源化
されるため、工場廃液を有効利用しつつ処理することが
できる。[0015] In this method as well, the water in the factory effluent evaporates in the cement clinker baking system and is finally discharged out of the cement production process, and the residue containing the inorganic component in the remaining factory effluent is treated with cement. Since it is recycled as a raw material for wastewater, it is possible to treat the wastewater while effectively utilizing the factory waste liquid.
【００１６】また、この処理によって、セメントクリン
カ焼成系に供給される汚泥の水分が高くなり、含水率の
低い汚泥においては汚泥のハンドリング性を向上させる
ことができ、安定して汚泥を処理しながら工場廃液の処
理を行うことができる。[0016] This treatment also increases the water content of the sludge supplied to the cement clinker firing system, and in the case of sludge having a low water content, the handling property of the sludge can be improved. Processing of factory waste liquid can be performed.
【００１７】尚、工場等で発生する廃棄物としての
「水」を廃水というが、廃棄物処理法関係では、廃水を
用いないで、廃酸・廃アルカリとして取り扱っている。
従来、工場等から発生する汚廃水は、廃水処理設備にお
いて廃液中の溶解性、またはスカム等の浮遊成分を分離
し、これらを含まない処理水として排出する一方、上記
で分離された成分は汚泥としてさらに脱水された上で、
脱水ケーキとして埋立や焼却による処理を行っている。
本発明でいう工場廃液とは、工場等から発生する、液体
であることを強調した廃棄物としての汚廃水の総称とし
て工場廃液と称する。Incidentally, "water" as waste generated in factories and the like is referred to as waste water. In relation to the waste treatment method, waste water is not used, but is handled as waste acid or waste alkali.
Conventionally, wastewater generated from factories, etc. separates soluble components in wastewater or suspended components such as scum in a wastewater treatment facility and discharges them as treated water containing no such components. After being further dehydrated,
The dewatered cake is treated by landfill or incineration.
The factory waste liquid referred to in the present invention is referred to as a factory waste liquid as a general term for wastewater generated as waste from a factory or the like as a waste.
【００１８】尚、本発明において、セメントクリンカ焼
成系で焼成されるセメントクリンカの種類は特に限定さ
れない。In the present invention, the type of cement clinker fired in the cement clinker firing system is not particularly limited.
【００１９】[0019]
【発明の実施の形態】次に、本発明にかかる工場廃液処
理方法の実施の形態の具体例を図面を参照しながら説明
する。DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, a specific example of an embodiment of the method for treating industrial waste liquid according to the present invention will be described with reference to the drawings.
【００２０】図１は、本発明にかかる工場廃液処理方法
の第１、第２実施例を示す図であって、本実施例では、
モップ廃液、写真廃液等の工場廃液をセメントクリンカ
焼成系からの排ガス（第１実施例）またはセメントクリ
ンカ焼成系へ供給されるセメント原料（第２実施例）に
添加することにより処理する場合について説明する。FIG. 1 is a view showing first and second embodiments of a method for treating a factory waste liquid according to the present invention.
A description will be given of a case in which a factory waste liquid such as a mop waste liquid or a photograph waste liquid is added to exhaust gas from the cement clinker firing system (first embodiment) or to a cement raw material supplied to the cement clinker firing system (second embodiment) for treatment. I do.
【００２１】ここで、モップ廃液とは、清掃用のモップ
等を洗浄した後に残る廃液であって、表１に示すような
化学組成を有する。また、写真廃液とは、炭酸カリを主
とした廃アルカリである現像廃液と、チオ硫酸アンモニ
ウムや氷酢酸を主とした廃酸である定着廃液を中和混合
処理した水分９７％以上の廃液である。Here, the mop waste liquid is a waste liquid remaining after cleaning a cleaning mop or the like, and has a chemical composition as shown in Table 1. The photographic waste liquid is a waste liquid having a water content of 97% or more obtained by neutralizing and mixing a developing waste liquid which is a waste alkali mainly composed of potassium carbonate and a fixing waste liquid which is a waste acid mainly composed of ammonium thiosulfate and glacial acetic acid. .
【００２２】[0022]
【表１】 [Table 1]
【００２３】［第１実施例］図１に示すように、プレヒ
ータ２、仮焼炉３、キルン４、クリンカクーラー５等か
らなるセメントクリンカ焼成系１のプレヒータ２からの
排ガスは、排気風車６を経て、最終的に煙突１１から排
出される。そして、煙突１１から排出される前に、排ガ
ス中のダストを除去するため電気集塵機１０が設置さ
れ、この電気集塵機１０での集塵効率を高める等のた
め、排ガス温度を低下させるとともに、排ガス中の水分
を高める必要がある。[First Embodiment] As shown in FIG. 1, exhaust gas from a preheater 2 of a cement clinker firing system 1 comprising a preheater 2, a calciner 3, a kiln 4, a clinker cooler 5, etc. After that, it is finally discharged from the chimney 11. Before being discharged from the chimney 11, an electric precipitator 10 is installed to remove dust in the exhaust gas. In order to increase the dust collection efficiency of the electric precipitator 10, the exhaust gas temperature is reduced, and Need to increase the water content.
【００２４】そこで、セメントクリンカ焼成系１と電気
集塵機１０との間に調湿塔７を配置する。この調湿塔７
は、その上部にスプレーノズル７ａを有し、プレヒータ
２からの排ガスが上方から導入され下方へ流れるように
構成される。そして、タンクローリー１２によって搬送
された工場廃液を廃液タンク１３に一時的に貯蔵した
後、廃液タンク１３から廃液ポンプ１４を介して工場廃
液を調湿塔７まで移送し、スプレーノズル７ａから、ク
リンカ生産量１ｔ当たり１０〜１５０ｋｇ噴霧してセメ
ントクリンカ焼成系１のプレヒータ２からの排ガスに添
加する。これによって、プレヒータ２の排ガス温度を低
下させ、排ガス中の水分を高めることができる。Therefore, a humidity control tower 7 is disposed between the cement clinker firing system 1 and the electric dust collector 10. This humidity control tower 7
Has a spray nozzle 7a at its upper part, and is configured such that exhaust gas from the preheater 2 is introduced from above and flows downward. After temporarily storing the factory waste liquid conveyed by the tank lorry 12 in the waste liquid tank 13, the factory waste liquid is transferred from the waste liquid tank 13 to the humidity control tower 7 via the waste liquid pump 14, and the clinker production is performed from the spray nozzle 7a. It is sprayed in an amount of 10 to 150 kg per 1 t of the amount and added to the exhaust gas from the preheater 2 of the cement clinker firing system 1. Thereby, the temperature of the exhaust gas of the preheater 2 can be lowered, and the moisture in the exhaust gas can be increased.
【００２５】この際、工場廃液中の水分は、排ガス中で
蒸発し最終的にそのほとんどが煙突１１から系外に排出
され、工場廃液中の無機質成分はセメントの原料として
資源化することができ、排ガスの調温、調湿を行いなが
ら工場廃液を処理することができる。At this time, the water in the factory effluent evaporates in the exhaust gas and most of it is finally discharged out of the system from the chimney 11, and the inorganic components in the factory effluent can be recycled as a raw material for cement. In addition, factory wastewater can be treated while controlling temperature and humidity of exhaust gas.
【００２６】尚、上記実施例では、調湿装置として竪型
の調湿塔を使用したが、ロータリ式の横型の調湿装置等
を使用することも可能である。In the above embodiment, a vertical humidity control apparatus is used as a humidity control apparatus, but a rotary horizontal humidity control apparatus or the like may be used.
【００２７】また、工場廃液はタンクローリー１２によ
って密閉状態で搬送されるため、悪臭を伴うものであっ
ても公害問題を起こすこともない。Further, since the factory waste liquid is transported in a sealed state by the tank lorry 12, even if it has a bad odor, it does not cause a pollution problem.
【００２８】［第２実施例］セメントクリンカ焼成系１
へ供給されるセメント原料は、ボールミルや、ローラを
備えた竪型ミル等の原料粉砕機８で予め粉砕される。こ
こで、竪型ミルでは、ローラとテーブルとの間の原料表
面に付着する水分の量をある程度多くして原料の噛み込
みを良くして原料粉砕時の振動を防止する必要がある。[Second embodiment] Cement clinker firing system 1
Is supplied to a raw material crusher 8 such as a ball mill or a vertical mill equipped with rollers. Here, in the vertical mill, it is necessary to increase the amount of water adhering to the surface of the raw material between the roller and the table to some extent to improve the bite of the raw material and to prevent vibration during the pulverization of the raw material.
【００２９】そこで、タンクローリー１２によって搬送
された工場廃液を廃液タンク１３に一時的に貯蔵した
後、廃液タンク１３から廃液タンク１４を介して原料粉
砕機８まで移送し、原料粉砕機８の内部に備えた配管設
備を介して原料粉砕機８の内部に供給される原料に、原
料１ｔ当たり１〜１５ｋｇ添加する。これによって、原
料の付着水分が多くなり、噛み込み状態が良くなり、原
料粉砕機８の振動を防止することができる。Then, after the factory waste liquid transported by the tank lorry 12 is temporarily stored in the waste liquid tank 13, the waste liquid is transferred from the waste liquid tank 13 to the raw material pulverizer 8 via the waste liquid tank 14, and is stored inside the raw material pulverizer 8. 1 to 15 kg per 1 t of the raw material is added to the raw material supplied into the raw material pulverizer 8 via the provided piping equipment. This increases the amount of moisture attached to the raw material, improves the biting state, and prevents vibration of the raw material crusher 8.
【００３０】この際にも、工場廃液中の水分のほとんど
はミル内で蒸発し、最終的に煙突１１から系外に排出さ
れるとともに、工場廃液中の無機質成分はセメントの原
料の一部として資源化することができ、原料粉砕機８の
振動を防止しながら工場廃液を処理することができる。At this time, most of the water in the factory effluent evaporates in the mill and is finally discharged from the chimney 11 to the outside of the system, and the inorganic component in the factory effluent is used as a part of the cement raw material. Resources can be recycled, and factory waste liquid can be treated while preventing vibration of the raw material crusher 8.
【００３１】尚、上記実施例においては、工場廃液を調
湿塔７において排ガスに添加する場合、及び原料粉砕機
の内部においてセメント原料に添加する場合について説
明したが、工場廃液の添加対象はこれらに限定されず、
例えば、セメントクリンカ焼成系からの排ガスが流れる
ダクト内において排ガスに添加したり、原料粉砕機の外
部において輸送機上の原料に添加すること等も可能であ
る。In the above embodiment, the case where the factory waste liquid is added to the exhaust gas in the humidity control tower 7 and the case where the factory waste liquid is added to the cement raw material inside the raw material pulverizer are described. Is not limited to
For example, it can be added to the exhaust gas in a duct through which the exhaust gas from the cement clinker firing system flows, or can be added to the raw material on the transporter outside the raw material crusher.
【００３２】次に、本発明にかかる工場廃液処理方法の
第３実施例について説明する。尚、本実施例では、第１
実施例の場合と同様のモップ廃液、写真廃液等の工場廃
液を、セメントクリンカ焼成系に供給される下水汚泥に
添加することにより処理する場合について図２を参照し
ながら説明する。Next, a description will be given of a third embodiment of the method for treating industrial waste liquid according to the present invention. In this embodiment, the first
With reference to FIG. 2, a description will be given of a case in which a factory waste liquid such as a mop waste liquid and a photographic waste liquid similar to that in the embodiment is added to sewage sludge supplied to a cement clinker baking system for treatment.
【００３３】セメント工場内には、コンテナ置場１７が
設けられ、アームロール車１６によって下水処理場等か
ら搬送された下水汚泥を蓄えたコンテナ１５が保管され
る。In the cement plant, a container storage 17 is provided, and a container 15 storing sewage sludge transported from a sewage treatment plant or the like by an arm roll truck 16 is stored.
【００３４】受入所２０には、下水汚泥をセメントクリ
ンカ焼成設備１のキルン４の窯尻部２３へ移送するため
の第１汚泥ポンプ２１が備えられる。また、受入所２０
とセメントクリンカ焼成設備１との間には、汚泥を一時
的に保管するための中継設備としての受入タンク２４が
設けられ、この受入タンク２４の底部には第２汚泥ポン
プ２５が備えられる。The receiving station 20 is provided with a first sludge pump 21 for transferring sewage sludge to the kiln bottom 23 of the kiln 4 of the cement clinker baking facility 1. In addition, receiving place 20
A receiving tank 24 as a relay facility for temporarily storing sludge is provided between the cement clinker baking facility 1 and a second sludge pump 25 at the bottom of the receiving tank 24.
【００３５】第１汚泥ポンプ２１と受入タンク２４との
間、第２汚泥ポンプ２５と窯尻部２３との間は密閉式移
送手段を構成する配管２２Ａ、２２Ｂによって各々接続
されている。The first sludge pump 21 and the receiving tank 24 are connected to each other, and the second sludge pump 25 and the kiln tail 23 are connected to each other by pipes 22A and 22B constituting closed transfer means.
【００３６】そして、コンテナ置場１７に保管していた
コンテナ１５を搭載したアームロール車１６を受入所２
０に停車させ、コンテナ１５の図示しない汚泥排出用ダ
クトを第１汚泥ポンプ２１の入口配管に接続し、第１汚
泥ポンプ２１を運転することにより、汚泥を受入タンク
２４まで移送する。Then, the arm roll truck 16 on which the container 15 stored in the container storage 17 is mounted is transferred to the receiving station 2
0, the sludge discharge duct (not shown) of the container 15 is connected to the inlet pipe of the first sludge pump 21, and the first sludge pump 21 is operated to transfer the sludge to the receiving tank 24.
【００３７】その後、セメントクリンカ焼成設備１の運
転状況を見ながら、セメントクリンカ焼成設備１の安定
運転を阻害しないように、受入タンク２４から適当量の
汚泥を第２汚泥ポンプ２５及び配管２２Ｂを介してキル
ン４の窯尻部２３に供給する。これによって、汚泥をセ
メントクリンカ焼成設備１において処理するとともに、
セメント原料として利用することができる。After that, while observing the operation status of the cement clinker baking equipment 1, an appropriate amount of sludge is supplied from the receiving tank 24 through the second sludge pump 25 and the pipe 22B so as not to hinder the stable operation of the cement clinker baking equipment 1. To the kiln bottom 23 of the kiln 4. Thereby, while sludge is processed in the cement clinker baking equipment 1,
It can be used as a cement raw material.
【００３８】上記運転において、汚泥を乾燥させたり、
添加剤を添加せずにキルン４の窯尻２３または仮焼炉３
に導入するにあたってモノーポンプ（商品名）等のスラ
リポンプを使用するが、汚泥中の水分が８０％程度であ
ればスラリーポンプにより圧送は可能である。しかし、
汚泥中の水分が６０％程度に脱水されたフィルタープレ
ス品等についてはスラリーポンプによる圧送は困難であ
った。In the above operation, sludge is dried,
Kiln bottom 23 of kiln 4 or calciner 3 without adding additives
A slurry pump such as a mono pump (trade name) is used for the introduction into the slurry, but if the water content in the sludge is about 80%, the slurry can be pumped by a slurry pump. But,
With a filter press product or the like in which the water content of the sludge has been dehydrated to about 60%, it was difficult to pump the product by a slurry pump.
【００３９】この際、圧送を可能とするため、廃油等の
油を添加する方法もあるが、熱量の高い油はコストが高
く、廃油として流通しているものはセメント焼成工程上
有害な塩素分を多く含むため、コスト面または工程安定
の面で問題であった。At this time, there is a method in which oil such as waste oil is added in order to enable pressure feeding. However, oil having a high calorific value is expensive, and oil distributed as waste oil has a harmful chlorine content in the cement firing process. Therefore, there is a problem in cost or process stability.
【００４０】そこで、このような場合に、タンクローリ
ー１２によって搬送された工場廃液を廃液タンク１３に
一時的に貯蔵した後、廃液タンク１３から廃液ポンプ１
４を介して、汚泥１ｔ当たり５０〜５００ｋｇの割合で
受入所２０に位置するアームロール車１６のコンテナ１
５内の汚泥に添加したり、第２汚泥ポンプ２５内の汚泥
に添加することにより、汚泥の水分を高め、ハンドリン
グ性を向上させることができる。Therefore, in such a case, after the factory waste liquid transported by the tank lorry 12 is temporarily stored in the waste liquid tank 13, the waste liquid pump 1
4, the container 1 of the arm roll truck 16 located at the receiving station 20 at a rate of 50 to 500 kg per 1 t of sludge.
By adding to the sludge in 5 or to the sludge in the second sludge pump 25, the water content of the sludge can be increased, and the handling property can be improved.
【００４１】この際、工場廃液中の水分はセメントクリ
ンカ焼成系１において蒸発し、最終的にそのほとんどが
煙突１１から系外に排出され、工場廃液中の無機質成分
はセメントの原料として資源化することができ、安定し
て下水汚泥を処理しながら工場廃液の処理をも行うこと
ができる。At this time, the water in the factory effluent evaporates in the cement clinker firing system 1 and most of the water is finally discharged out of the system from the chimney 11, and the inorganic component in the factory effluent is recycled as a raw material for cement. Thus, it is possible to stably treat sewage sludge and also treat factory wastewater.
【００４２】尚、上記実施例においては、工場廃液がモ
ップ廃液、写真廃液の場合について説明したが、比較的
水分が高く、セメントクリンカの品質に問題のない化学
組成を示す工場廃液であれば同様に処理することができ
る。In the above embodiment, the case where the factory waste liquid is a mop waste liquid and a photographic waste liquid has been described. However, the same applies to factory waste liquids having a relatively high water content and exhibiting a chemical composition which does not affect the quality of cement clinker. Can be processed.
【図１】本発明にかかる工場廃液処理方法の第１及び第
２実施例を説明するためのフローチャートである。FIG. 1 is a flowchart for explaining first and second embodiments of a method for treating a factory waste liquid according to the present invention.
【図２】本発明にかかる工場廃液処理方法の第３実施例
を説明するためのフローチャートである。FIG. 2 is a flowchart for explaining a third embodiment of the method for treating a factory waste liquid according to the present invention.
１ セメントクリンカ焼成系 ２ プレヒータ ３ 仮焼炉 ４ キルン ５ クリンカクーラー ６ 排気風車 ７ 調湿塔 ７ａ スプレーノズル ８ 原料粉砕機 １０ 電気集塵機 １１ 煙突 １２ タンクローリー １３ 廃液タンク １４ 廃液ポンプ １５ コンテナ １６ アームロール車 １７ コンテナ置場 ２０ 受入所 ２１ 第１汚泥ポンプ ２２Ａ、２２Ｂ 配管 ２３ 窯尻部 ２４ 受入タンク ２５ 第２汚泥ポンプ DESCRIPTION OF SYMBOLS 1 Cement clinker baking system 2 Preheater 3 Calciner 4 Kiln 5 Clinker cooler 6 Exhaust windmill 7 Humidity control tower 7a Spray nozzle 8 Raw material crusher 10 Electric dust collector 11 Chimney 12 Tank lorry 13 Waste liquid tank 14 Waste liquid pump 15 Container 16 Arm roll car 17 Container storage 20 Receiving place 21 First sludge pump 22A, 22B Piping 23 Kiln bottom 24 Receiving tank 25 Second sludge pump
───────────────────────────────────────────────────── フロントページの続き (72)発明者 神長 俊樹 高知県高知市孕東町25 太平洋セメント株 式会社土佐工場内 (72)発明者 浦田 典運 福岡県田川郡香春町大字香春812 太平洋 セメント株式会社香春工場内 (72)発明者 田原 義朗 福岡県田川郡香春町大字香春812 太平洋 セメント株式会社香春工場内 Ｆターム(参考） 4D034 AA20 AA27 CA18 CA19 ──────────────────────────────────────────────────続 き Continuing from the front page (72) Inventor Toshiki Kancho 25 Koto, Kochi City, Higashi-cho 25 Pacific Cement Co., Ltd. Inside the Tosa Plant (72) Inventor Noriyuki Urata 812 Kaharu, Kaharu-cho, Tagawa-gun, Fukuoka Prefecture Pacific Cement Co., Ltd. (72) Inventor Yoshiro Tahara, Fukuoka Prefecture, Kawasaki Town, Tagawa-gun, Fukuoka 812 Koharu, Pacific Cement Co., Ltd. Koharu Plant F-term (reference) 4D034 AA20 AA27 CA18 CA19
Claims (4)
らの排ガスまたはセメントクリンカ焼成系へ供給される
セメント原料に添加することにより処理することを特徴
とする工場廃液処理方法。1. A method for treating a factory waste liquid by adding a factory waste liquid to exhaust gas from a cement clinker firing system or to a cement raw material supplied to the cement clinker firing system.
系のプレヒータと電気集塵機の間に位置する調湿装置に
おいて、該プレヒータからの排ガスに添加されることを
特徴とする請求項１記載の工場廃液処理方法。2. The factory waste liquid according to claim 1, wherein said factory waste liquid is added to exhaust gas from said preheater in a humidity control device located between a preheater of a cement clinker firing system and an electric dust collector. Processing method.
系へ供給されるセメント原料を粉砕する原料粉砕機の内
部あるいは直前において、該原料に添加されることを特
徴とする請求項１記載の工場廃液処理方法。3. The factory waste liquid according to claim 1, wherein the factory waste liquid is added to the raw material inside or immediately before a raw material pulverizer for pulverizing a cement raw material supplied to a cement clinker firing system. Processing method.
のためセメントクリンカ焼成系に供給される汚泥に添加
することにより処理することを特徴とする工場廃液処理
方法。4. A method for treating a factory waste liquid by adding a factory waste liquid to sludge supplied to a cement clinker firing system for incineration treatment in a cement factory.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP04213499A JP4181682B2 (en) | 1999-02-19 | 1999-02-19 | Factory waste liquid treatment method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP04213499A JP4181682B2 (en) | 1999-02-19 | 1999-02-19 | Factory waste liquid treatment method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2000239050A true JP2000239050A (en) | 2000-09-05 |
| JP4181682B2 JP4181682B2 (en) | 2008-11-19 |
Family
ID=12627484
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP04213499A Expired - Lifetime JP4181682B2 (en) | 1999-02-19 | 1999-02-19 | Factory waste liquid treatment method |
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| Country | Link |
|---|---|
| JP (1) | JP4181682B2 (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003002706A (en) * | 2001-06-20 | 2003-01-08 | Mitsubishi Materials Corp | Method of treating industrial waste water |
| WO2008001747A1 (en) * | 2006-06-28 | 2008-01-03 | Taiheiyo Cement Corporation | Cement burning apparatus and method of drying highly hydrous organic waste |
| JP2008006355A (en) * | 2006-06-28 | 2008-01-17 | Taiheiyo Cement Corp | Drying method of cement burning apparatus and high-moisture organic waste |
| JP2008007347A (en) * | 2006-06-28 | 2008-01-17 | Taiheiyo Cement Corp | Cement burning apparatus and method for drying highly water-containing organic waste material |
| JP2013079165A (en) * | 2011-10-04 | 2013-05-02 | Taiheiyo Cement Corp | Method for treating waste liquid |
| KR101354966B1 (en) | 2006-06-28 | 2014-01-24 | 다이헤이요 엔지니어링 가부시키가이샤 | Cement calcination apparatus and method of drying highly hydrous organic waste |
| JP2014180584A (en) * | 2013-03-18 | 2014-09-29 | Taiheiyo Cement Corp | Method and system for treating volatile organic compound-containing waste liquid |
| JP2015010021A (en) * | 2013-07-01 | 2015-01-19 | 株式会社トクヤマ | Treatment method of waste water of processing |
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| JPH06211552A (en) * | 1993-01-18 | 1994-08-02 | Ishikawajima Harima Heavy Ind Co Ltd | Cement firing equipment |
| JPH08276199A (en) * | 1995-04-07 | 1996-10-22 | Mitsubishi Materials Corp | Treatment of sludge |
| JPH11116290A (en) * | 1997-10-14 | 1999-04-27 | Tokuyama Corp | Production of cement |
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| JPS6253784A (en) * | 1985-08-30 | 1987-03-09 | Nippon Steel Chem Co Ltd | Treatment of desulfurization waste liquids |
| JPH06211552A (en) * | 1993-01-18 | 1994-08-02 | Ishikawajima Harima Heavy Ind Co Ltd | Cement firing equipment |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003002706A (en) * | 2001-06-20 | 2003-01-08 | Mitsubishi Materials Corp | Method of treating industrial waste water |
| WO2008001747A1 (en) * | 2006-06-28 | 2008-01-03 | Taiheiyo Cement Corporation | Cement burning apparatus and method of drying highly hydrous organic waste |
| JP2008006355A (en) * | 2006-06-28 | 2008-01-17 | Taiheiyo Cement Corp | Drying method of cement burning apparatus and high-moisture organic waste |
| JP2008007347A (en) * | 2006-06-28 | 2008-01-17 | Taiheiyo Cement Corp | Cement burning apparatus and method for drying highly water-containing organic waste material |
| US8607469B2 (en) | 2006-06-28 | 2013-12-17 | Taiheiyo Cement Corporation | Cement burning apparatus and method of drying high-water-content organic waste |
| KR101354966B1 (en) | 2006-06-28 | 2014-01-24 | 다이헤이요 엔지니어링 가부시키가이샤 | Cement calcination apparatus and method of drying highly hydrous organic waste |
| KR101354968B1 (en) | 2006-06-28 | 2014-01-24 | 다이헤이요 엔지니어링 가부시키가이샤 | Cement burning apparatus and method of drying highly hydrous organic waste |
| JP2013079165A (en) * | 2011-10-04 | 2013-05-02 | Taiheiyo Cement Corp | Method for treating waste liquid |
| JP2014180584A (en) * | 2013-03-18 | 2014-09-29 | Taiheiyo Cement Corp | Method and system for treating volatile organic compound-containing waste liquid |
| JP2015010021A (en) * | 2013-07-01 | 2015-01-19 | 株式会社トクヤマ | Treatment method of waste water of processing |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4181682B2 (en) | 2008-11-19 |
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