JP2000354838A - Method for treating chlorine bypass dust and its apparatus - Google Patents
Method for treating chlorine bypass dust and its apparatusInfo
- Publication number
- JP2000354838A JP2000354838A JP11165360A JP16536099A JP2000354838A JP 2000354838 A JP2000354838 A JP 2000354838A JP 11165360 A JP11165360 A JP 11165360A JP 16536099 A JP16536099 A JP 16536099A JP 2000354838 A JP2000354838 A JP 2000354838A
- Authority
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- Japan
- Prior art keywords
- slurry
- chlorine bypass
- bypass dust
- tank
- cement
- 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.)
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- Processing Of Solid Wastes (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】この発明は、塩素バイパス設
備により回収した塩素バイパスダストを処理する方法及
び装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and an apparatus for treating chlorine bypass dust collected by a chlorine bypass facility.
【０００２】[0002]
【従来の技術】近年、セメントキルンにおける産業廃棄
物の処理量増加に応じて、キルンの安定操業やセメント
品質に悪影響を及ぼす塩素などの揮発性成分のキルンヘ
の持込み量が増加しており、この対策として塩素バイパ
ス設備が設置されている。塩素バイパス設備は、キルン
尻付近の塩素等の揮発性成分濃縮領域からガスを抽気
し、冷却することにより塩素化合物を主とする揮発性成
分を固形化させた塩素バイパスダストを生成させ、この
塩素バイパスダストを系外に排出することで、塩素をキ
ルン内から除去する設備である。2. Description of the Related Art In recent years, as the amount of industrial waste treated in a cement kiln has increased, the amount of volatile components such as chlorine that has a negative effect on the stable operation of the kiln and the cement quality has been brought into the kiln. As a countermeasure, a chlorine bypass facility has been installed. Chlorine bypass equipment extracts gas from a volatile component concentration region such as chlorine near the kiln tail and cools it to produce chlorine bypass dust in which volatile components, mainly chlorine compounds, are solidified. This facility removes chlorine from the kiln by discharging bypass dust outside the system.
【０００３】従来の塩素バイパスダストの処理装置を図
５に示す。セメントキルン１のインレットチャンバー部
に設けられたプローブ２からガスを抽気しつつ冷却して
生成された塩素バイパスダストは捕集設備３で捕集され
る。この塩素バイパスダストは、クリンカ等に添加、又
は仕上ミルに直接供給することによりセメント粉砕系で
処理されるが、セメント工場の配置上、キルン１からの
抽気設備系と仕上添加設備系は多くの場合互いに離れた
場所に設置せざるを得ないため、各々の設備系に貯蔵用
のタンク４及び５を置き、処理状況に合せてトラック等
でタンク４と５との間を移送している。仕上添加設備系
では貯蔵用のタンク５から引き出した塩素バイパスダス
トを計量装置６で秤量した後、チェーン式コンベヤある
いは空気輸送機により目的の添加位置まで輸送し、クリ
ンカ等に添加、又はセメント仕上ミル７に添加してい
る。FIG. 5 shows a conventional apparatus for treating chlorine bypass dust. Chlorine bypass dust generated by cooling while extracting gas from the probe 2 provided in the inlet chamber of the cement kiln 1 is collected by the collection equipment 3. This chlorine bypass dust is added to a clinker or the like, or is supplied directly to a finishing mill, and is treated in a cement grinding system. However, due to the layout of a cement plant, a system for extracting air from the kiln 1 and a system for finishing and adding are often used. In this case, storage tanks 4 and 5 are provided in each equipment system, and the tanks 4 and 5 are transported between the tanks 4 and 5 by a truck or the like in accordance with a processing situation, since the tanks must be set apart from each other. In the finishing addition equipment system, the chlorine bypass dust drawn out from the storage tank 5 is weighed by the weighing device 6, and then transported to a target addition position by a chain type conveyor or a pneumatic transporter, and added to a clinker or the like, or a cement finishing mill. 7 is added.
【０００４】[0004]
【発明が解決しようとする課題】このように従来の設備
では、タンク４及び５間の塩素バイパスダスト移送が必
要であり、作業者はタンク残量を監視しながら移送用の
トラックを準備し、抽気設備系の塩素バイパスダスト貯
蔵タンク４から塩素バイパスダストを引出し、運搬し、
仕上添加設備系の貯蔵タンク５ヘ積込む作業を行なって
いた。塩素バイパスダストは潮解性を持つため、長期貯
蔵を行うとタンク４及び５より排出しにくくなることか
ら、タンク容量は最大で２〜３日分程度とせざるを得
ず、塩素バイパス連続運転時には、週３〜４回この作業
を行なう必要があった。As described above, in the conventional equipment, it is necessary to transfer chlorine bypass dust between the tanks 4 and 5, and the operator prepares a transfer truck while monitoring the remaining amount of the tank. Withdraw and transport chlorine bypass dust from the chlorine bypass dust storage tank 4 of the bleeding equipment system,
The work of loading into the storage tank 5 of the finishing addition equipment system was performed. Since chlorine bypass dust has deliquescence, it is difficult to discharge it from tanks 4 and 5 when stored for a long time, so the tank capacity has to be about 2 to 3 days at maximum, and during continuous operation of chlorine bypass, This had to be done three to four times a week.
【０００５】また、塩素バイパスダストは容重が０．１
５前後と軽いため、重量あたりのタンク必要容積が大き
くなり、同重量のセメント原料やセメントに比べてタン
ク４及び５が大型化していた。さらに、タンク壁面温度
が低下すると吸湿によりタンクから出にくくなる性質が
あるので、温度の低下する仕上添加設備系の貯蔵タンク
５には加温設備が必要となり、設備費が増す要因の一つ
となっていた。仕上添加設備系の貯蔵タンク５からクリ
ンカ等あるいは仕上ミル７ヘの添加には粉体の輸送機に
より行うため、既設架構内での自由なルート設定が難し
く、設備配置上から添加位置に制約を受ける場合があっ
た。[0005] The chlorine bypass dust has a weight of 0.1.
Since the weight is as light as about 5, the required volume of the tank per weight is large, and the tanks 4 and 5 are larger than the cement material and cement of the same weight. Further, when the temperature of the tank wall surface is lowered, there is a property that it is difficult to come out of the tank due to moisture absorption. Therefore, the storage tank 5 of the finishing addition equipment system in which the temperature is lowered requires a heating device, which is one of the factors that increase the equipment cost. I was Since the addition from the storage tank 5 of the finishing addition equipment system to the clinker or the like or the finishing mill 7 is performed by a powder transporter, it is difficult to freely set a route in the existing frame, and the addition position is restricted from the equipment arrangement. There was a case.
【０００６】この発明はこのような従来の間題点を解消
するためになされたものであり、塩素バイパスダストの
抽気設備系タンクから仕上添加設備系タンクへのトラッ
クによる移送を不要とし、且つ仕上添加設備系タンクの
小型化、ダスト添加系設備の簡素化を図ることができる
塩素バイパスダストの処理方法及びその装置を提供する
ことを目的とする。The present invention has been made to solve such a conventional problem, and eliminates the need for transporting chlorine bypass dust from a bleeding equipment system tank to a finishing addition equipment system tank by truck. It is an object of the present invention to provide a chlorine bypass dust treatment method and apparatus capable of reducing the size of the addition equipment system tank and simplifying the dust addition system equipment.
【０００７】[0007]
【課題を解決するための手段】この発明の請求項１に係
る塩素バイパスダストの処理方法は、セメントキルンに
取り付けられた塩素バイパス設備により回収された塩素
バイパスダストの処理方法において、塩素バイパスダス
トに水を加えてスラリーとし、このスラリーをクリン
カ、石膏及び混合材の少なくとも一つと共にセメント製
造用のミルで混合する方法である。請求項２に係る塩素
バイパスダストの処理方法は、セメントキルンに取り付
けられた塩素バイパス設備により回収された塩素バイパ
スダストの処理方法において、塩素バイパスダストに水
を加えてスラリーとし、このスラリーを脱水し、脱水に
より得られた処理水をクリンカ、石膏及び混合材の少な
くとも一つと共にセメント製造用のミルで混合する方法
である。請求項３に係る塩素バイパスダストの処理方法
は、請求項１または２の方法において、塩素バイパスダ
ストに対して重量比で２〜５倍の水を加えてスラリー化
する方法である。According to a first aspect of the present invention, there is provided a method for treating chlorine bypass dust collected by chlorine bypass equipment attached to a cement kiln. This is a method in which water is added to form a slurry, and the slurry is mixed with at least one of clinker, gypsum and a mixed material in a cement production mill. The method for treating chlorine bypass dust according to claim 2 is a method for treating chlorine bypass dust collected by a chlorine bypass facility attached to a cement kiln, wherein water is added to the chlorine bypass dust to form a slurry, and the slurry is dewatered. A method in which treated water obtained by dehydration is mixed with at least one of clinker, gypsum and a mixed material in a cement production mill. The method for treating chlorine bypass dust according to a third aspect is the method according to the first or second aspect, wherein water is added to the chlorine bypass dust at a weight ratio of 2 to 5 times to make a slurry.
【０００８】請求項４に係る塩素バイパスダストの処理
装置は、セメントキルンに取り付けられた塩素バイパス
設備により回収された塩素バイパスダストの処理装置に
おいて、塩素バイパスダストに水を加えてスラリーとす
るためのスラリー槽と、スラリー槽で形成されたスラリ
ーを搬送してクリンカ、石膏及び混合材の少なくとも一
つと共にあるいは直接セメント製造用のミルに供給する
ための第１のポンプとを備えたものである。請求項５に
係る塩素バイパスダストの処理装置は、請求項４の装置
において、スラリー槽で形成されたスラリーを一旦貯留
するスラリータンクと、スラリータンクからスラリーを
搬送してクリンカ、石膏及び混合材の少なくとも一つと
共にあるいは直接セメント製造用のミルに供給するため
の第２のポンプとをさらに備えたものである。According to a fourth aspect of the present invention, there is provided an apparatus for treating chlorine bypass dust collected by a chlorine bypass facility installed in a cement kiln, wherein water is added to the chlorine bypass dust to form a slurry. A slurry tank and a first pump for transporting the slurry formed in the slurry tank and supplying the slurry together with at least one of clinker, gypsum and a mixed material, or directly to a mill for cement production. The apparatus for treating chlorine bypass dust according to claim 5 is the apparatus according to claim 4, wherein the slurry formed in the slurry tank is temporarily stored, and the slurry is transferred from the slurry tank to the clinker, the gypsum and the mixed material. And a second pump for feeding to at least one or directly to the mill for cement production.
【０００９】請求項６に係る塩素バイパスダストの処理
装置は、セメントキルンに取り付けられた塩素バイパス
設備により回収された塩素バイパスダストの処理装置に
おいて、塩素バイパスダストに水を加えてスラリーとす
るためのスラリー槽と、スラリー槽で形成されたスラリ
ーを搬送する第１のポンプと、第１のポンプで搬送され
たスラリーを一定時間静置して上澄み水と濃縮スラリー
とに分離するための沈降槽と、濃縮スラリーを脱水する
脱水機と、沈降槽で得られた上澄み水と脱水機で得られ
た処理水とを搬送してクリンカ、石膏及び混合材の少な
くとも一つと共にあるいは直接セメント製造用のミルに
供給するための第３のポンプとを備えたものである。請
求項７に係る塩素バイパスダストの処理装置は、請求項
６の装置において、沈降槽で得られた上澄み水と脱水機
で得られた処理水とを一旦貯留する溶液タンクと、溶液
タンクから上澄み水と処理水を搬送してクリンカ、石膏
及び混合材の少なくとも一つと共にあるいは直接セメン
ト製造用のミルに供給するための第４のポンプとをさら
に備えたものである。A chlorine bypass dust treatment apparatus according to a sixth aspect of the present invention is a chlorine bypass dust treatment apparatus recovered by a chlorine bypass facility attached to a cement kiln, wherein water is added to the chlorine bypass dust to form a slurry. A slurry tank, a first pump for transporting the slurry formed in the slurry tank, and a sedimentation tank for allowing the slurry transported by the first pump to stand for a certain period of time to separate supernatant water and concentrated slurry. A dehydrator for dewatering the concentrated slurry, and a supernatant mill obtained from the sedimentation tank and the treated water obtained by the dehydrator to be transported together with at least one of clinker, gypsum and a mixed material or a mill for directly producing cement. And a third pump for supplying to the pump. The apparatus for treating chlorine bypass dust according to claim 7 is the apparatus according to claim 6, wherein a solution tank for temporarily storing the supernatant water obtained in the settling tank and the treated water obtained in the dehydrator, and a supernatant from the solution tank. And a fourth pump for transporting the water and the treated water together with at least one of clinker, gypsum and the mixture or directly to a mill for producing cement.
【００１０】この発明では、塩素バイパス設備により捕
集した塩素バイパスダストに水を加え、ポンプを使用し
配管を通じて仕上添加設備系に移送し、スラリーの状態
または水溶液の状態でクリンカ等に添加又はセメント製
造用のミルに供給する。In the present invention, water is added to the chlorine bypass dust collected by the chlorine bypass facility, transferred to a finishing addition facility system through a pipe using a pump, and added to a clinker or the like in a slurry state or an aqueous solution state or cemented. Supply to mill for production.
【００１１】[0011]
【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に係る塩
素バイパスダストの処理装置を示す。セメントキルン１
のインレットチャンバー部に設けられたプローブ２を介
してキルン尻付近の塩素等の揮発性成分濃縮領域からガ
スを抽気し、これを冷却して生成された塩素バイパスダ
ストが塩素バイパスダスト捕集設備３で捕集され、抽気
設備系のタンク４内に貯留される。塩素バイパスダスト
はタンク４から定量供給機８により引き出されてスラリ
ー槽９に送られ、ここで水（例えば工場水）が加えられ
てスラリー化される。Embodiments of the present invention will be described below with reference to the accompanying drawings. Embodiment 1 FIG. FIG. 1 shows an apparatus for treating chlorine bypass dust according to Embodiment 1 of the present invention. Cement kiln 1
Gas is extracted from a volatile component concentration region such as chlorine near the kiln butt through a probe 2 provided in an inlet chamber portion of the kiln, and chlorine bypass dust generated by cooling the gas is collected by a chlorine bypass dust collecting device 3. And is stored in the tank 4 of the bleeding equipment system. The chlorine bypass dust is withdrawn from the tank 4 by the quantitative feeder 8 and sent to the slurry tank 9, where water (for example, factory water) is added to form a slurry.
【００１２】このとき、塩素バイパスダストに対して加
える水が少なすぎると、スラリーの濃度が濃くなってポ
ンプ１０での移送が困難になり、逆に加える水が多すぎ
ると、スラリーの量が多くなるためスラリー槽９、ポン
プ１０、配管等を大型化する必要が生じてしまう。そこ
で、塩素バイパスダストと加える水の重量比は、ダスト
に対して水２〜５倍が適しているAt this time, if the amount of water to be added to the chlorine bypass dust is too small, the concentration of the slurry becomes high and it becomes difficult to transfer the slurry by the pump 10. Conversely, if the amount of water to be added is too large, the amount of the slurry becomes large. Therefore, it becomes necessary to increase the size of the slurry tank 9, the pump 10, the piping, and the like. Therefore, the weight ratio of water to be added to chlorine bypass dust is preferably 2 to 5 times water to dust.
【００１３】スラリー槽９にて水が加えられた塩素バイ
パスダストはスラリー状態でポンプ１０（第１のポン
プ）により仕上添加設備系に送られ、クリンカ、石膏、
混合材（石灰石、高炉スラグ、フライアッシュ等）等に
添加されてセメント仕上ミル７に供給され、セメントが
製造される。あるいは、ポンプ１０によりスラリー状の
塩素バイパスダストが直接セメント仕上ミル７に供給さ
れる。[0013] The chlorine bypass dust to which water has been added in the slurry tank 9 is sent in a slurry state to a finishing addition equipment system by a pump 10 (first pump), and clinker, gypsum,
It is added to a mixed material (limestone, blast furnace slag, fly ash, etc.) and supplied to a cement finishing mill 7 to produce cement. Alternatively, the slurry-like chlorine bypass dust is directly supplied to the cement finishing mill 7 by the pump 10.
【００１４】実施の形態２．図２にこの発明の実施の形
態２に係る塩素バイパスダストの処理装置を示す。この
処理装置は、図１に示した実施の形態１の処理装置にお
いて、スラリー槽９で形成されたスラリー状の塩素バイ
パスダストを一旦貯留するスラリータンク１１と、この
スラリータンク１１からスラリー状の塩素バイパスダス
トを搬送してクリンカ、石膏、混合材等に添加、あるい
は直接セメント仕上ミル７に供給するためのポンプ１２
（第２のポンプ）を設けたものである。Embodiment 2 FIG. FIG. 2 shows an apparatus for treating chlorine bypass dust according to Embodiment 2 of the present invention. This processing apparatus is different from the processing apparatus according to the first embodiment shown in FIG. 1 in that a slurry tank 11 for temporarily storing slurry-like chlorine bypass dust formed in a slurry tank 9 and a slurry-like chlorine Pump 12 for transporting bypass dust and adding it to clinker, gypsum, mixture, or the like, or directly supplying it to cement finishing mill 7
(Second pump).
【００１５】このようにスラリー状の塩素バイパスダス
トをスラリータンク１１に一時的に貯留することによ
り、セメント仕上ミル７への塩素バイパスダストの供給
を定常的に行うことができるようになる。By temporarily storing the slurry-like chlorine bypass dust in the slurry tank 11 as described above, the chlorine bypass dust can be constantly supplied to the cement finishing mill 7.
【００１６】実施の形態３．図３にこの発明の実施の形
態３に係る塩素バイパスダストの処理装置を示す。この
処理装置は、図１に示した実施の形態１の処理装置にお
いて、スラリー槽９で形成されたスラリー状の塩素バイ
パスダストを一定時間静置して上澄み水と濃縮スラリー
とに分離するための沈降槽１３と、濃縮スラリーを脱水
する脱水機１４とを備えると共に、沈降槽１３で得られ
た上澄み水と脱水機１４で得られた処理水（ろ液）とを
搬送してクリンカ、石膏、混合材と共にあるいは直接セ
メント仕上ミル７に供給するためのポンプ１５（第３の
ポンプ）を備えたものである。Embodiment 3 FIG. 3 shows an apparatus for treating chlorine bypass dust according to Embodiment 3 of the present invention. This processing apparatus is different from the processing apparatus of the first embodiment shown in FIG. 1 in that the slurry-like chlorine bypass dust formed in the slurry tank 9 is allowed to stand for a certain period of time to be separated into supernatant water and concentrated slurry. A sedimentation tank 13 and a dehydrator 14 for dewatering the concentrated slurry are provided. The supernatant water obtained in the sedimentation tank 13 and the treated water (filtrate) obtained in the dehydrator 14 are transported to clinker, gypsum, It is provided with a pump 15 (third pump) for supplying the mixed material or directly to the cement finishing mill 7.
【００１７】スラリー槽９で形成されたスラリー状の塩
素バイパスダストは、ポンプ１０により沈降槽１３に入
り、ここで一定時間静置することにより、上澄み水と濃
縮スラリーとに分離される。濃縮スラリーは脱水機１４
にて脱水され、生成した脱水ケーキはセメント原料とし
てリサイクルすることができる。一方、沈降槽１３で得
られた上澄み水と脱水機１４で濃縮スラリーを脱水した
時に発生する処理水はポンプ１５により仕上添加設備系
に送られ、クリンカ、石膏、混合材等に添加されてセメ
ント仕上ミル７に供給され、セメントが製造される。あ
るいは、ポンプ１５により沈降槽１３で得られた上澄み
水と脱水機１４で得られた処理水が直接セメント仕上ミ
ル７に供給される。The slurry-like chlorine bypass dust formed in the slurry tank 9 enters the sedimentation tank 13 by the pump 10 and is allowed to stand there for a certain period of time to be separated into supernatant water and concentrated slurry. The concentrated slurry is dewatered 14
The resulting dewatered cake can be recycled as a raw material for cement. On the other hand, the supernatant water obtained in the sedimentation tank 13 and the treated water generated when the concentrated slurry is dewatered by the dehydrator 14 are sent to the finishing addition equipment system by the pump 15 and added to the clinker, gypsum, mixed material, etc. The cement is supplied to the finishing mill 7 to produce cement. Alternatively, the supernatant water obtained in the sedimentation tank 13 by the pump 15 and the treated water obtained by the dehydrator 14 are directly supplied to the cement finishing mill 7.
【００１８】なお、塩素バイパスダスト中の塩素分はほ
とんどが水溶性であるため、上澄み水及び処理水にほと
んどの塩素分が存在し、脱水ケーキに存在する塩素分は
わずかである。この実施の形態３においても、実施の形
態１と同様に、塩素バイパスダストに加える水の重量比
はダストに対して水２〜５倍が適している。Since most of the chlorine content in the chlorine bypass dust is water-soluble, most of the chlorine content is present in the supernatant water and the treated water, and the chlorine content in the dewatered cake is small. Also in the third embodiment, as in the first embodiment, the weight ratio of water to be added to the chlorine bypass dust is suitably 2 to 5 times water with respect to the dust.
【００１９】実施の形態４．図４にこの発明の実施の形
態４に係る塩素バイパスダストの処理装置を示す。この
処理装置は、図３に示した実施の形態３の処理装置にお
いて、沈降槽１３で得られた上澄み水と脱水機１４で得
られた処理水を一旦貯留する溶液タンク１６と、この溶
液タンク１６から上澄み水及び処理水を搬送してクリン
カ、石膏、混合材等に添加、あるいは直接セメント仕上
ミル７に供給するためのポンプ１７（第４のポンプ）を
設けたものである。Embodiment 4 FIG. 4 shows a chlorine bypass dust treatment apparatus according to Embodiment 4 of the present invention. This processing apparatus is different from the processing apparatus according to the third embodiment shown in FIG. 3 in that a solution tank 16 for temporarily storing the supernatant water obtained in the sedimentation tank 13 and the processing water obtained in the dehydrator 14, A pump 17 (fourth pump) for conveying supernatant water and treated water from 16 and adding it to clinker, gypsum, a mixture, or the like, or directly supplying it to the cement finishing mill 7 is provided.
【００２０】このように上澄み水及び処理水を溶液タン
ク１６に一時的に貯留することにより、セメント仕上ミ
ル７への上澄み水及び処理水の供給を定常的に行うこと
ができるようになる。なお、上記実施の形態１〜４にお
けるセメント仕上ミル７の代わりに混合セメント（高炉
セメント、フライアッシュセメント、シリカセメント
等）用の混合材を粉砕するミルを用いて実施することも
可能である。By temporarily storing the supernatant water and the treated water in the solution tank 16 in this manner, the supernatant water and the treated water can be constantly supplied to the cement finishing mill 7. In addition, instead of the cement finishing mill 7 in Embodiments 1 to 4, it is also possible to use a mill for pulverizing a mixed material for mixed cement (blast furnace cement, fly ash cement, silica cement, etc.).
【００２１】また、この発明による塩素バイパスダスト
の処理方法及びその装置はすべての塩素バイパス設備に
適用することができるが、例えば特願平９−５２１９１
８号公報に開示されているような、パイバスガス中のダ
ストの粗粉分離工程を有する装置と組合わせて適用する
ことにより、スラリー生成量をセメント生産量に対して
最大でも１％とすることが可能となる。この量はクリン
カ粉砕時に行うミル内散水量と同等以下であり、セメン
トの品質には影響を与えないため、さらに効果的とな
る。The method and apparatus for treating chlorine bypass dust according to the present invention can be applied to all chlorine bypass equipment. For example, Japanese Patent Application No. 9-52191 discloses a method.
By applying the apparatus in combination with an apparatus having a coarse powder separation step for dust in the bypass gas as disclosed in Japanese Patent Publication No. 8 (1994), it is possible to reduce the slurry production amount to at most 1% of the cement production amount. It becomes possible. This amount is equal to or less than the amount of water sprayed in the mill at the time of clinker pulverization, and does not affect the quality of cement, so that it is more effective.
【００２２】[0022]
【発明の効果】以上説明したように、この発明によれ
ば、以下のような効果が得られる。 １．塩素バイパスダストをスラリーの状態にすることに
よりポンプでの移送が可能となり、従来行っていた塩素
バイパス抽気設備系タンクと仕上添加設備系タンクとの
間のトラックによる移送が不要となることでランニング
コストの低減を図ることができる。 ２．塩素バイパスダストに水を加えてスラリーとするこ
とにより、塩素バイパスダストが減容され、仕上添加設
備系のタンク容積が従来の約１／３〜２／３となり設備
の構築費が低減される。 ３．仕上添加設備系タンクからセメント仕上ミル等への
輸送も、ポンプと樹脂性チューブによる配管のみで行
え、従来の粉体輸送機が不要となるため、設備が大幅に
簡略化できる。 ４．塩素バイパスダストの潮解性のため、従来タンクで
の保管は数日程度であったが、スラリーあるいは上澄水
の状態にすることにより数週間の保管が可能となる。As described above, according to the present invention, the following effects can be obtained. 1. By making the chlorine bypass dust into a slurry state, it can be transported by a pump, eliminating the need for truck transport between the chlorine bypass bleed equipment tank and the finish addition equipment tank, which has been required in the past, and running costs. Can be reduced. 2. By adding water to the chlorine bypass dust to make a slurry, the volume of the chlorine bypass dust is reduced, and the tank volume of the finishing addition equipment system is reduced to about 1/3 to 2/3 of the conventional value, and the construction cost of the equipment is reduced. 3. The transportation from the finishing addition equipment system tank to the cement finishing mill or the like can be performed only by piping using a pump and a resinous tube, and a conventional powder transport machine is not required, so that the equipment can be greatly simplified. 4. Due to the deliquescence of chlorine bypass dust, storage in a conventional tank has been about several days, but storage in slurry or supernatant water enables storage for several weeks.
【図１】 この発明の実施の形態１に係る塩素バイパス
ダストの処理装置を示すブロック図である。FIG. 1 is a block diagram showing an apparatus for treating chlorine bypass dust according to Embodiment 1 of the present invention.
【図２】 実施の形態２に係る塩素バイパスダストの処
理装置を示すブロック図である。FIG. 2 is a block diagram showing an apparatus for treating chlorine bypass dust according to a second embodiment.
【図３】 実施の形態３に係る塩素バイパスダストの処
理装置を示すブロック図である。FIG. 3 is a block diagram illustrating an apparatus for treating chlorine bypass dust according to a third embodiment.
【図４】 実施の形態４に係る塩素バイパスダストの処
理装置を示すブロック図である。FIG. 4 is a block diagram showing an apparatus for treating chlorine bypass dust according to a fourth embodiment.
【図５】 従来の塩素バイパスダストの処理装置を示す
ブロック図である。FIG. 5 is a block diagram showing a conventional chlorine bypass dust treatment device.
【符号の説明】 １ セメントキルン、２ プローブ、３ 塩素バイパス
ダスト捕集設備、４タンク、７ セメント仕上ミル、８
定量供給機、９ スラリー槽、１０，１２，１５，１
７ ポンプ、１１ スラリータンク、１３ 沈降槽、１
４ 脱水機、１６ 溶液タンク。[Description of Signs] 1 cement kiln, 2 probes, 3 chlorine bypass dust collecting equipment, 4 tanks, 7 cement finishing mill, 8
Metering machine, 9 slurry tank, 10, 12, 15, 1
7 pump, 11 slurry tank, 13 sedimentation tank, 1
4 Dehydrators, 16 solution tanks.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 吉田 昭男 埼玉県深谷市幡羅町１−11−２ 秩父エン ジニアリング株式会社内 (72)発明者 廣瀬 敏章 埼玉県深谷市幡羅町１−11−２ 秩父エン ジニアリング株式会社内 Ｆターム(参考） 4D004 AA16 AA50 AC05 BA02 CA13 CB02 CB45 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Akio Yoshida 1-11-2 Hara-cho, Fukaya-shi, Saitama Chichibu Engineering Co., Ltd. (72) Inventor Toshiaki Hirose 1-1-11-Hara-cho, Fukaya-shi, Saitama F term in Chichibu Engineering Co., Ltd. (reference) 4D004 AA16 AA50 AC05 BA02 CA13 CB02 CB45
Claims (7)
イパス設備により回収された塩素バイパスダストの処理
方法において、 塩素バイパスダストに水を加えてスラリーとし、 このスラリーをクリンカ、石膏及び混合材の少なくとも
一つと共にセメント製造用のミルで混合することを特徴
とする塩素バイパスダストの処理方法。1. A method for treating chlorine bypass dust collected by a chlorine bypass facility attached to a cement kiln, wherein water is added to the chlorine bypass dust to form a slurry, and the slurry is made of at least one of clinker, gypsum and a mixed material. And chlorine mixing with a cement production mill.
イパス設備により回収された塩素バイパスダストの処理
方法において、 塩素バイパスダストに水を加えてスラリーとし、 このスラリーを脱水し、 脱水により得られた処理水をクリンカ、石膏及び混合材
の少なくとも一つと共にセメント製造用のミルで混合す
ることを特徴とする塩素バイパスダストの処理方法。2. A method for treating chlorine bypass dust collected by a chlorine bypass facility attached to a cement kiln, comprising: adding water to the chlorine bypass dust to form a slurry; dehydrating the slurry; and treating water obtained by the dehydration. And chlorine mixing with at least one of clinker, gypsum and a mixing material in a mill for cement production.
〜５倍の水を加える請求項１及び２に記載の塩素バイパ
スダストの処理方法。3. A weight ratio of 2 to chlorine bypass dust.
The method for treating chlorine bypass dust according to claim 1 or 2, wherein water is added up to 5 times the amount of water.
イパス設備により回収された塩素バイパスダストの処理
装置において、 塩素バイパスダストに水を加えてスラリーとするための
スラリー槽と、 前記スラリー槽で形成されたスラリーを搬送してクリン
カ、石膏及び混合材の少なくとも一つと共にあるいは直
接セメント製造用のミルに供給するための第１のポンプ
とを備えたことを特徴とする塩素バイパスダストの処理
装置。4. A processing apparatus for chlorine bypass dust collected by a chlorine bypass facility attached to a cement kiln, comprising: a slurry tank for adding water to the chlorine bypass dust to form a slurry; and a slurry tank formed by the slurry tank. A first pump for conveying the slurry and supplying the slurry together with at least one of clinker, gypsum and a mixed material or directly to a mill for producing cement;
一旦貯留するスラリータンクと、 前記スラリータンクからスラリーを搬送してクリンカ、
石膏及び混合材の少なくとも一つと共にあるいは直接セ
メント製造用のミルに供給するための第２のポンプとを
備えた請求項４に記載の塩素バイパスダストの処理装
置。5. A slurry tank for temporarily storing the slurry formed in the slurry tank, and a clinker for conveying the slurry from the slurry tank,
5. A chlorine bypass dust treatment apparatus according to claim 4, further comprising a second pump for supplying to at least one of the gypsum and the mixture or directly to the mill for producing cement.
イパス設備により回収された塩素バイパスダストの処理
装置において、 塩素バイパスダストに水を加えてスラリーとするための
スラリー槽と、 前記スラリー槽で形成されたスラリーを搬送する第１の
ポンプと、 第１のポンプで搬送されたスラリーを一定時間静置して
上澄み水と濃縮スラリーとに分離するための沈降槽と、 濃縮スラリーを脱水する脱水機と、 前記沈降槽で得られた上澄み水と前記脱水機で得られた
処理水とを搬送してクリンカ、石膏及び混合材の少なく
とも一つと共にあるいは直接セメント製造用のミルに供
給するための第３のポンプとを備えたことを特徴とする
塩素バイパスダストの処理装置。6. A processing apparatus for chlorine bypass dust collected by a chlorine bypass facility attached to a cement kiln, comprising: a slurry tank for adding water to the chlorine bypass dust to form a slurry; and a slurry tank formed by the slurry tank. A first pump for conveying the slurry, a sedimentation tank for allowing the slurry conveyed by the first pump to stand still for a certain period of time to separate supernatant water and a concentrated slurry, and a dehydrator for dewatering the concentrated slurry, A third for transporting the supernatant water obtained in the sedimentation tank and the treated water obtained in the dehydrator together with at least one of clinker, gypsum and a mixed material or directly to a mill for cement production; An apparatus for treating chlorine bypass dust, comprising a pump.
水機で得られた処理水とを一旦貯留する溶液タンクと、 前記溶液タンクから上澄み水と処理水を搬送してクリン
カ、石膏及び混合材の少なくとも一つと共にあるいは直
接セメント製造用のミルに供給するための第４のポンプ
とを備えた請求項６に記載の塩素バイパスダストの処理
装置。7. A solution tank for temporarily storing the supernatant water obtained in the sedimentation tank and the treated water obtained in the dehydrator, and transferring the supernatant water and the treated water from the solution tank to clinker, gypsum and The chlorine bypass dust treatment apparatus according to claim 6, further comprising a fourth pump for supplying the mixture to at least one of the mixed materials or directly to the mill for producing cement.
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|---|---|---|---|
| JP16536099A JP4434361B2 (en) | 1999-06-11 | 1999-06-11 | Method and apparatus for treating chlorine bypass dust |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16536099A JP4434361B2 (en) | 1999-06-11 | 1999-06-11 | Method and apparatus for treating chlorine bypass dust |
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| JP2000354838A true JP2000354838A (en) | 2000-12-26 |
| JP4434361B2 JP4434361B2 (en) | 2010-03-17 |
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| JP16536099A Expired - Lifetime JP4434361B2 (en) | 1999-06-11 | 1999-06-11 | Method and apparatus for treating chlorine bypass dust |
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