JP2004244308A5 - - Google Patents
Download PDFInfo
- Publication number
- JP2004244308A5 JP2004244308A5 JP2004011153A JP2004011153A JP2004244308A5 JP 2004244308 A5 JP2004244308 A5 JP 2004244308A5 JP 2004011153 A JP2004011153 A JP 2004011153A JP 2004011153 A JP2004011153 A JP 2004011153A JP 2004244308 A5 JP2004244308 A5 JP 2004244308A5
- Authority
- JP
- Japan
- Prior art keywords
- dust
- exhaust gas
- cement
- suspension preheater
- manufacturing apparatus
- 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
Description
すなわち、本発明（請求項１）のセメント製造装置の排ガスの処理方法は、（Ａ）セメント製造装置の排ガスを、集塵手段（例えば、電気集塵機等の集塵機や、集塵可能な乾燥機、粉砕機等）を用いて処理し、ダイオキシン類の如き有機塩素化合物を含むダストを捕集する一方、前記集塵手段による処理後の排ガスを排出する工程と、（Ｂ）前記捕集されたダスト（集塵ダスト）の少なくとも一部を、前記セメント製造装置内の800℃以上の場所（例えば、サスペンションプレヒータの最下段、仮焼炉、ロータリーキルンの窯前または窯尻等）に投入する工程と、（Ｃ）前記工程（Ｂ）における前記ダストの残部を、前記セメント製造装置内の800℃未満の場所（例えば、サスペンションプレヒータの原料入口側（ガス出口側）のセメント原料供給路等）に投入する工程と、を含むことを特徴とする。
本発明の処理方法によれば、セメント製造装置の排ガス中の有機塩素化合物（例えば、ダイオキシン類）を含むダストが、セメント製造装置内における有機塩素化合物（例えば、ダイオキシン類）を加熱分解し得る条件下に置かれるので、有機塩素化合物を処理するための特別な加熱装置を設けることなく、有機塩素化合物（例えば、ダイオキシン類）を効率的に分解し無害化することができる。
また、このように構成すれば、800℃以上の場所に集塵ダストの全量を投入することが困難であるなどの事情がある場合であっても、800℃未満の場所に集塵ダストの残部を投入することによって、本発明の方法で処理される集塵ダストの量を増加させることができる。
なお、セメント製造装置の排ガスは、従来より、熱源として、セメント原料の乾燥工程や粉砕工程において利用されている。これら乾燥工程や粉砕工程で捕集された排ガス中のダストは、電気集塵機等の集塵機で捕集されたダストと同様に、本発明の処理方法の対象となり得る。
That is, according to the present invention (Claim 1), the method for treating exhaust gas of a cement production apparatus comprises: (A) collecting exhaust gas from a cement production apparatus with dust collecting means (for example, a dust collector such as an electric dust collector, a dryer capable of collecting dust, A process using a pulverizer or the like, and collecting dust containing an organic chlorine compound such as dioxins, and discharging the exhaust gas after the treatment by the dust collecting means, and (B) the collected dust A step of putting at least a part of (dust collection dust) in a place of 800 ° C. or higher in the cement manufacturing apparatus (for example, the lowest stage of a suspension preheater, a calciner, a kiln in front of a rotary kiln or a kiln bottom) (C) The remainder of the dust in the step (B) is supplied to the cement raw material at a location lower than 800 ° C. in the cement manufacturing apparatus (for example, the raw material inlet side (gas outlet side) of the suspension preheater. And a step of feeding it into a supply path or the like) .
According to the treatment method of the present invention, the condition that the dust containing the organic chlorine compound (for example, dioxins) in the exhaust gas of the cement manufacturing apparatus can thermally decompose the organic chlorine compound (for example, dioxins) in the cement manufacturing apparatus. Since it is placed underneath, an organic chlorine compound (for example, dioxins) can be efficiently decomposed and rendered harmless without providing a special heating device for treating the organic chlorine compound.
Also, with this configuration, even if there is a situation where it is difficult to put the entire amount of dust collection dust into a place where the temperature is 800 ° C or higher, the remaining dust collection dust will be placed in a place where the temperature is less than 800 ° C. The amount of dust collected that is treated by the method of the present invention can be increased.
In addition, the exhaust gas of a cement manufacturing apparatus has been conventionally used as a heat source in a drying process or a pulverizing process of a cement raw material. The dust in the exhaust gas collected in the drying step and the pulverizing step can be the target of the treatment method of the present invention, similarly to the dust collected by a dust collector such as an electric dust collector.
前記（Ｃ）工程を含む本発明の排ガスの処理方法において、前記工程（Ｂ）における前記ダストの投入量は、前記工程（Ｂ）及び前記工程（Ｃ）の各々に前記ダストを継続的に供給する条件下で、前記集塵手段による処理後の排ガス中の有機塩素化合物（例えば、ダイオキシン類）の濃度が経時的に低減していくように定めることが好ましい（請求項２）。
このように構成すれば、大気中に排出される有機塩素化合物（例えば、ダイオキシン類）の量を経時的に増加させることなく、セメント製造装置内の既存の加熱手段を用いるだけで、有機塩素化合物（例えば、ダイオキシン類）を含む集塵ダストを処理し無害化することができる。
In the exhaust gas treatment method of the present invention including the step (C), the amount of dust input in the step (B) is continuously supplied to each of the step (B) and the step (C). It is preferable that the concentration of organochlorine compounds (for example, dioxins) in the exhaust gas after the treatment by the dust collecting means be reduced over time under such conditions (claim 2) .
If comprised in this way, only by using the existing heating means in a cement manufacturing apparatus, without increasing the quantity of the organic chlorine compounds (for example, dioxins) discharged | emitted in air | atmosphere over time, an organic chlorine compound Dust collection dust containing (for example, dioxins) can be treated and rendered harmless.
上述のように前記集塵手段による処理後の排ガス中の有機塩素化合物の濃度を経時的に低減させるためには、例えば、前記工程（Ａ）において、前記集塵手段による処理開始時に、単位時間当たりの質量基準で、前記工程（Ｂ）で投入される前記ダストに含まれる有機塩素化合物（例えば、ダイオキシン類）の含有量が、前記集塵手段による処理後の排ガスに含まれる有機塩素化合物（例えば、ダイオキシン類）の含有量よりも大きくなるように、前記工程（Ｂ）で投入される前記ダストの投入量を定めればよい（請求項３）。 In order to reduce the concentration of the organic chlorine compound in the exhaust gas after the treatment by the dust collection means as described above, for example, in the step (A), at the start of the treatment by the dust collection means, a unit time The content of organochlorine compounds (for example, dioxins) contained in the dust introduced in the step (B) on the basis of the mass per unit is the organochlorine compound contained in the exhaust gas treated by the dust collecting means ( For example, the amount of dust input in the step (B) may be determined so as to be larger than the content of dioxins ) .
本発明の処理方法は、好ましくは、前記セメント製造装置の排ガスの温度が30〜400℃である地点において、該排ガスを、前記集塵手段を用いて処理するように構成される（請求項４）。
このような温度下においては、セメント製造装置の排ガス中のダストに吸着される有機塩素化合物（例えば、ダイオキシン類）の量が増大するので、集塵手段による処理後の排ガスに含まれる有機塩素化合物（例えば、ダイオキシン類）の濃度を低減することができる。
Processing method of the present invention, preferably, at the point the temperature of exhaust gas of the cement manufacturing apparatus is 30 to 400 ° C., the exhaust gas, the condenser configured to process using a dust means (claim 4 )
Under such a temperature, the amount of organochlorine compounds (for example, dioxins) adsorbed on the dust in the exhaust gas of the cement production apparatus increases, so the organochlorine compound contained in the exhaust gas after the treatment by the dust collecting means The concentration of (for example, dioxins) can be reduced.
本発明（請求項５）のセメント製造装置の排ガスの処理システムは、セメント原料を予熱するためのサスペンションプレヒータ（具体的には、複数のサイクロンから構成されるもの）と、該サスペンションプレヒータの下部に接続されるセメントクリンカ焼成用のロータリーキルンと、セメントクリンカの焼成に伴って発生する排ガスを排出するための排ガス路と、該排ガス路に接続される、前記排ガス中の有機塩素化合物（例えば、ダイオキシン類）を含むダストを捕集するための集塵装置（例えば、電気集塵機等の集塵機や、サスペンションプレヒータの原料入口側（ガス出口側）に配置される集塵可能な乾燥機や粉砕機等）とを備えたセメント製造装置の排ガスの処理システムであって、前記サスペンションプレヒータ内の800℃以上の温度に達し得る部分又は前記ロータリーキルンに、前記集塵装置で捕集されたダストの少なくとも一部を投入するためのダスト供給手段（例えば、スクリューコンベアの如き搬送装置と、スクリューフィーダの如き供給量調整装置とを組み合わせたもの）と、前記サスペンションプレヒータ内の800℃以上の温度に達し得る部分よりも原料入口側（セメント原料が供給される側；ガス出口側）の地点（例えば、原料供給路）に、前記集塵装置で捕集されたダストの残部を投入するためのダスト搬送手段（例えば、スクリューコンベアの如き搬送装置と、スクリューフィーダの如き供給量調整装置とを組み合わせたもの）を有することを特徴とする。
また、本発明（請求項６）のセメント製造装置の排ガスの処理システムは、さらに、前記サスペンションプレヒータと前記ロータリーキルンの間に配設される仮焼炉を備えることができる。この場合、本発明のセメント製造装置の排ガスの処理システムは、前記サスペンションプレヒータ内の800℃以上の温度に達し得る部分と、前記仮焼炉（ただし、仮焼炉本体の他、仮焼炉に導かれるクーラー抽気ダクトを含むものとする。）と、前記ロータリーキルンとから選ばれる少なくとも１つ以上の場所に、前記集塵装置で捕集されたダストの少なくとも一部を投入するためのダスト供給手段を有する。
An exhaust gas treatment system for a cement production apparatus according to the present invention (Claim 5) includes a suspension preheater (specifically, a plurality of cyclones) for preheating cement raw material, and a lower part of the suspension preheater. and rotary kiln for cement clinker burning connected, and the exhaust gas passage for discharging exhaust gas generated in association with the firing of cement clinker is connected to the exhaust gas passage, organic chlorine compounds in the exhaust gas (for example, dioxin For example, a dust collector such as an electric dust collector, a dryer or a pulverizer capable of collecting dust disposed on the raw material inlet side (gas outlet side) of the suspension preheater, etc. An exhaust gas treatment system for a cement production apparatus comprising: a suspension preheater having a temperature of 800 ° C or higher. A portion or the rotary kiln can reach every, at least a portion dust supply means for introducing the dust trapped in the dust collecting device (e.g., a such conveyor device of the screw conveyor, such as the supply amount adjusting screw feeder And a point on the raw material inlet side (the side where the cement raw material is supplied; the gas outlet side) with respect to the portion of the suspension preheater that can reach a temperature of 800 ° C. or higher (for example, the raw material supply path) In addition, it has dust conveying means (for example, a combination of a conveying device such as a screw conveyor and a supply amount adjusting device such as a screw feeder) for introducing the remaining dust collected by the dust collecting device. It is characterized by.
The exhaust gas treatment system for a cement production apparatus according to the present invention (Claim 6) may further include a calciner disposed between the suspension preheater and the rotary kiln. In this case, the exhaust gas treatment system of the cement production apparatus according to the present invention includes a portion that can reach a temperature of 800 ° C. or higher in the suspension preheater and the calcining furnace (however, in addition to the calcining furnace body, And at least one place selected from the rotary kiln, and has dust supply means for putting at least part of the dust collected by the dust collector. .
本発明の排ガスの処理システムによれば、セメント製造装置の排ガス中の有機塩素化合物（例えば、ダイオキシン類）を含むダストが、セメント製造装置内における有機塩素化合物（例えば、ダイオキシン類）を完全に加熱分解し得る条件下に置かれるので、有機塩素化合物を処理するための特別な加熱装置を設けることなく、有機塩素化合物（例えば、ダイオキシン類）を効率的に分解し無害化することができる。
また、このように構成すれば、ロータリーキルンの如き800℃以上の場所に集塵ダストの全量を投入することが困難であるなどの事情がある場合であっても、800℃未満の場所に集塵ダストの残部を投入することによって、本発明のシステムで処理される集塵ダストの量を増加させることができる。
According to the exhaust gas treatment system of the present invention, the dust containing organochlorine compounds (for example, dioxins) in the exhaust gas of the cement production apparatus completely heats the organochlorine compounds (for example, dioxins) in the cement production apparatus. Since it is placed under conditions that can be decomposed, the organic chlorine compounds (for example, dioxins) can be efficiently decomposed and rendered harmless without providing a special heating device for treating the organic chlorine compounds.
In addition, with this configuration, even when there is a situation where it is difficult to put the entire amount of dust collection into a place where the temperature is 800 ° C or higher, such as a rotary kiln, By introducing the remainder of the dust, it is possible to increase the amount of dust collected that is processed by the system of the present invention.
本発明の排ガスの処理システムにおいて、前記排ガス路は、前記サスペンションプレヒータを通過した排ガスを捕集し得るように、設けることができる（請求項７）。 In the exhaust gas treatment system of the present invention, the exhaust gas channel, as can be collected exhaust gas having passed through the suspension preheater may be provided (claim 7).
本発明においては、集塵ダストの一部を、セメント製造装置内の800℃以上の場所に投入し、かつ、集塵ダストの残部（残りの一部でもよい。）を、セメント製造装置内の800℃未満の場所（例えば、原料供給路３や、サスペンションプレヒータ４の上部のサイクロン４ａ等）に投入する。
ここで、800℃以上の場所に投入される集塵ダストの量と、800℃未満の場所に投入される集塵ダストの量は、これら集塵ダストのみを系内に供給し続けたと仮定した場合に、集塵機９による処理後の排ガス中の有機塩素化合物（例えば、ダイオキシン類）の濃度が、経時的に低減していくように定められる。つまり、800℃未満の場所に投入される集塵ダストの量が大きいと、集塵機９による処理後の排ガス中の有機塩素化合物（例えば、ダイオキシン類）の濃度が次第に増大していくおそれがあるため、この問題を回避するために、800℃以上の場所に投入される集塵ダストの量を所定量以上に調整するのである。
In the present invention, a part of the dust collection dust is put into a place of 800 ° C. or higher in the cement manufacturing apparatus, and the remaining part of the dust collection dust (or the remaining part) may be put in the cement manufacturing apparatus. It is put into a place below 800 ° C. (for example, the raw material supply path 3 or the cyclone 4a above the suspension preheater 4) .
Here, the amount of dust collection dust thrown into a place above 800 ° C and the amount of dust collection dust thrown into a place below 800 ° C were assumed to continue supplying only the dust collection dust into the system. In this case, the concentration of the organic chlorine compound (for example, dioxins) in the exhaust gas after the treatment by the dust collector 9 is determined so as to decrease with time. In other words, if the amount of dust collected in a place below 800 ° C. is large, the concentration of organic chlorine compounds (for example, dioxins) in the exhaust gas after the treatment by the dust collector 9 may gradually increase. In order to avoid this problem, the amount of dust collection dust thrown into a place of 800 ° C. or higher is adjusted to a predetermined amount or more.
以下、実施例に基づいて本発明を説明する。
［参考例１］
セメント原料を、図１に示すセメント製造装置に所定量供給して、クリンカを焼成するとともに、発生した排ガスを電気集塵機９等によって処理し、集塵ダストと、処理後の排ガスを得た。初期時においては、集塵ダストの全量を、ダスト搬送手段１３を介して原料供給路３に導くようにした。
この時点における集塵ダスト中のダイオキシン類の濃度（単位：ng-TEQ/g）、及び処理後の排ガス中のダイオキシン類の濃度（単位：ng-TEQ/m3N）を測定し、集塵ダストを仮焼炉６に投入し始める前のダイオキシン類の濃度（初期濃度）とした。
Hereinafter, the present invention will be described based on examples.
[Reference Example 1]
A predetermined amount of the cement raw material was supplied to the cement manufacturing apparatus shown in FIG. 1 to burn the clinker, and the generated exhaust gas was treated by the electric dust collector 9 and the like, and dust collection dust and treated exhaust gas were obtained. At the initial stage, the entire amount of dust collection dust was guided to the raw material supply path 3 via the dust transport means 13.
The concentration of dioxins in the dust collection dust at this time (unit: ng-TEQ / g) and the concentration of dioxins in the exhaust gas after treatment (unit: ng-TEQ / m 3 N) are measured to collect the dust. The concentration (initial concentration) of dioxins before starting to put dust into the calcining furnace 6 was used.
［実施例１］
集塵ダストの一部を仮焼炉６に２トン／ｈで投入し、集塵ダストの残部を原料供給路３に８トン／ｈで投入した他は、参考例１と同様にして実験した。結果を表１及び表２に示す。
［参考例２］
集塵ダストの一部を仮焼炉６に0.5トン／ｈで投入し、集塵ダストの残部を原料供給路３に9.5トン／ｈで投入した他は、参考例１と同様にして実験した。結果を表１及び表２に示す。
[Example 1 ]
An experiment was conducted in the same manner as in Reference Example 1 except that a part of the dust collection dust was thrown into the calcining furnace 6 at 2 ton / h and the remaining dust collection dust was put into the raw material supply path 3 at 8 ton / h. . The results are shown in Tables 1 and 2.
[Reference Example 2 ]
The experiment was conducted in the same manner as in Reference Example 1 except that a part of the dust collection dust was thrown into the calcining furnace 6 at 0.5 ton / h and the rest of the dust collection dust was thrown into the raw material supply path 3 at 9.5 ton / h. . The results are shown in Tables 1 and 2.
表１及び表２に示すように、集塵ダストの一部のみを仮焼炉に投入し、残部を原料供給炉に投入した実施例１では、集塵ダスト全量を仮焼炉に投入した参考例１と同様に、集塵機９による処理後の排ガス中のダイオキシン類の濃度及び量（総排出量）、及び、集塵ダスト中のダイオキシン類の濃度及び量（総排出量）が、経時的に低減しており、既存のセメント製造装置を利用してダイオキシン類を効率的に加熱分解して無害化できることがわかる。
一方、参考例２では、原料供給路３に投入される集塵ダストの量が多いため、集塵機９による処理後の排ガス中のダイオキシン類の濃度及び量（総排出量）、及び、集塵ダスト中のダイオキシン類の濃度及び量（総排出量）を、経時的に低減するまでには至っていないことがわかる。
As shown in Tables 1 and 2, in Example 1 where only a part of the dust collection dust was put into the calcining furnace and the rest was put into the raw material supply furnace, the total amount of dust collection dust was put into the calcining furnace. As in Example 1 , the concentration and amount (total emission amount) of dioxins in the exhaust gas after treatment by the dust collector 9 and the concentration and amount (total emission amount) of dioxins in the dust collection dust over time It can be seen that dioxins can be efficiently decomposed by heating and detoxified using existing cement production equipment.
On the other hand, in Reference Example 2 , since the amount of dust collected in the raw material supply path 3 is large, the concentration and amount of dioxins in the exhaust gas after treatment by the dust collector 9 (total emission amount), and dust collection dust It can be seen that the concentration and amount (total emission) of dioxins in the medium have not yet been reduced over time.
Claims (7)
（Ｂ）前記捕集されたダストの少なくとも一部を、前記セメント製造装置内の800℃以上の場所に投入する工程と、
（Ｃ）前記工程（Ｂ）における前記ダストの残部を、前記セメント製造装置内の800℃未満の場所に投入する工程と、
を含むことを特徴とするセメント製造装置の排ガスの処理方法。 (A) Treating the exhaust gas of the cement manufacturing apparatus using a dust collecting means, and collecting dust containing an organic chlorine compound, while discharging the exhaust gas after the treatment by the dust collecting means;
(B) introducing at least a part of the collected dust into a place of 800 ° C. or higher in the cement manufacturing apparatus;
(C) The step of throwing the remainder of the dust in the step (B) into a place below 800 ° C. in the cement manufacturing apparatus;
A method for treating exhaust gas of a cement manufacturing apparatus, comprising:
前記サスペンションプレヒータ内の800℃以上の温度に達し得る部分又は前記ロータリーキルンに、前記集塵装置で捕集されたダストの少なくとも一部を投入するためのダスト供給手段と、
前記サスペンションプレヒータ内の800℃以上の温度に達し得る部分よりも原料入口側の地点に、前記集塵装置で捕集されたダストの残部を投入するためのダスト搬送手段と、を有することを特徴とするセメント製造装置の排ガスの処理システム。 A suspension preheater for preheating a cement material, and the exhaust gas passage for discharging a rotary kiln for cement clinker burning connected to a lower portion of the suspension preheater, the exhaust gas generated in association with the firing of cement clinker, the exhaust gas An exhaust gas treatment system for a cement production apparatus, comprising a dust collector for collecting dust containing organochlorine compounds in the exhaust gas, connected to a road,
To 800 ° C. or more portions or the rotary kiln can reach temperatures in the suspension preheater, a dust feeding means for introducing at least a portion of the dust trapped in the dust collecting device,
Dust conveying means for throwing the remainder of the dust collected by the dust collector at a point closer to the raw material inlet side than a portion in the suspension preheater that can reach a temperature of 800 ° C. or higher. An exhaust gas treatment system for cement production equipment.
前記サスペンションプレヒータ内の800℃以上の温度に達し得る部分と、前記仮焼炉と、前記ロータリーキルンとから選ばれる少なくとも一つ以上の場所に、前記集塵装置で捕集されたダストの少なくとも一部を投入するためのダスト供給手段と、
前記サスペンションプレヒータ内の800℃以上の温度に達し得る部分よりも原料入口側の地点に、前記集塵装置で捕集されたダストの残部を投入するためのダスト搬送手段と、を有することを特徴とするセメント製造装置の排ガスの処理システム。 Suspension preheater for preheating cement raw material, a rotary kiln for cement clinker firing connected to the lower part of the suspension preheater, a calciner disposed between the suspension preheater and the rotary kiln, and firing of the cement clinker An exhaust gas path for exhausting exhaust gas generated along with the exhaust gas path, and a dust collecting apparatus connected to the exhaust gas path for collecting dust containing organic chlorine compounds in the exhaust gas An exhaust gas treatment system,
And 800 ° C. can reach a temperature higher than the portion in the suspension preheater, wherein the calciner, wherein the at least one location selected from a rotary kiln, at least a portion of the dust trapped in the dust collecting device and the dust supply means for introducing,
Dust conveying means for throwing the remainder of the dust collected by the dust collector at a point closer to the raw material inlet side than a portion in the suspension preheater that can reach a temperature of 800 ° C. or higher. An exhaust gas treatment system for cement production equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004011153A JP4230371B2 (en) | 2003-01-22 | 2004-01-19 | Method for treating exhaust gas from cement production equipment |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2003013481 | 2003-01-22 | ||
| JP2004011153A JP4230371B2 (en) | 2003-01-22 | 2004-01-19 | Method for treating exhaust gas from cement production equipment |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2008035491A Division JP4948446B2 (en) | 2003-01-22 | 2008-02-18 | Method for treating exhaust gas from cement production equipment |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2004244308A JP2004244308A (en) | 2004-09-02 |
| JP2004244308A5 true JP2004244308A5 (en) | 2008-02-07 |
| JP4230371B2 JP4230371B2 (en) | 2009-02-25 |
Family
ID=33031989
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2004011153A Expired - Lifetime JP4230371B2 (en) | 2003-01-22 | 2004-01-19 | Method for treating exhaust gas from cement production equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP4230371B2 (en) |
Families Citing this family (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8075686B2 (en) | 2005-06-16 | 2011-12-13 | Mitsubishi Materials Corporation | Method for reducing organic chlorine compounds in cement production facility, and cement production facility |
| JP5092211B2 (en) * | 2005-07-14 | 2012-12-05 | 三菱マテリアル株式会社 | Cement production equipment |
| US7955417B2 (en) | 2005-06-30 | 2011-06-07 | Mitsubishi Materials Corporation | Method for reducing organic chlorine compounds in cement production facility, and cement production facility |
| JP2007008767A (en) * | 2005-06-30 | 2007-01-18 | Mitsubishi Materials Corp | Method of reducing organic chlorine compound in waste gas in cement production equipment and cement production equipment |
| JP2007070173A (en) * | 2005-09-08 | 2007-03-22 | Mitsubishi Materials Corp | Method for lowering organochlorine compound in cement production equipment |
| JP5582554B2 (en) * | 2006-06-28 | 2014-09-03 | 太平洋セメント株式会社 | Cement baking equipment |
| TWI422556B (en) | 2006-06-28 | 2014-01-11 | Taiheiyo Cement Corp | Cement burning apparatus and method of drying organic waste with high water content |
| US8607469B2 (en) | 2006-06-28 | 2013-12-17 | Taiheiyo Cement Corporation | Cement burning apparatus and method of drying high-water-content organic waste |
| JP5142351B2 (en) * | 2006-06-28 | 2013-02-13 | 太平洋セメント株式会社 | Cement baking apparatus and method for drying high water content organic waste |
| JP2008222487A (en) * | 2007-03-12 | 2008-09-25 | Taiheiyo Cement Corp | Method for reducing quantity of organic pollutant |
| JP5629053B2 (en) * | 2008-01-10 | 2014-11-19 | 宇部興産株式会社 | Cement production method |
| JP5008597B2 (en) * | 2008-03-25 | 2012-08-22 | 太平洋セメント株式会社 | Organic pollutant emission reduction method and cement manufacturing apparatus |
| JP5888844B2 (en) * | 2010-09-29 | 2016-03-22 | 住友大阪セメント株式会社 | Method and apparatus for reducing organochlorine compounds in exhaust gas from cement production facilities |
| JP2012072017A (en) * | 2010-09-29 | 2012-04-12 | Sumitomo Osaka Cement Co Ltd | Method and apparatus for decreasing organochlorine compound in exhaust gas in cement manufacturing equipment |
| WO2012053058A1 (en) * | 2010-10-19 | 2012-04-26 | 電気化学工業株式会社 | Cement clinker manufacturing method |
| JP5776271B2 (en) * | 2011-03-30 | 2015-09-09 | 宇部興産株式会社 | Cement production equipment |
| JP6157300B2 (en) * | 2013-09-30 | 2017-07-05 | 太平洋セメント株式会社 | Cement kiln exhaust gas treatment method |
| JP6609996B2 (en) * | 2015-05-26 | 2019-11-27 | 宇部興産株式会社 | Cement clinker manufacturing apparatus, cement manufacturing apparatus, cement clinker manufacturing apparatus method, and cement manufacturing method |
-
2004
- 2004-01-19 JP JP2004011153A patent/JP4230371B2/en not_active Expired - Lifetime
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP2004244308A5 (en) | ||
| JP4948446B2 (en) | Method for treating exhaust gas from cement production equipment | |
| JP4230371B2 (en) | Method for treating exhaust gas from cement production equipment | |
| JP5088919B2 (en) | Cement baking apparatus and waste treatment method | |
| US8114190B2 (en) | Exhaust gas treatment method and system for cement burning facility | |
| WO2008056664A1 (en) | Method of disposing of organic waste of high water content and disposal apparatus therefor | |
| JP4445147B2 (en) | Sludge treatment method and apparatus | |
| WO2008001747A1 (en) | Cement burning apparatus and method of drying highly hydrous organic waste | |
| JP4445148B2 (en) | Sludge treatment method and apparatus | |
| TWI722316B (en) | Sludge treatment method and cement manufacturing system | |
| JP2016150292A (en) | Mercury recovery system and mercury recovery method | |
| CN101434461A (en) | Apparatus and method for processing wastes | |
| JP2006212594A (en) | Method for treating exhaust gas generated when waste is dried | |
| JP4516830B2 (en) | Heat purification equipment for contaminated soil | |
| KR102416754B1 (en) | Method and device for reducing mercury in cement kiln exhaust gas | |
| JP5092211B2 (en) | Cement production equipment | |
| JP5129913B2 (en) | Contaminated soil purification method and contaminated soil purification asphalt plant | |
| JP6562730B2 (en) | Heat treatment apparatus for powder and waste gypsum heat treatment method | |
| JP5412711B2 (en) | Method and apparatus for treating high water content inorganic waste | |
| JP5013598B2 (en) | Heat crushing apparatus, hazardous substance processing system and processing method | |
| JPH0777390A (en) | Method and equipment for processing substance such as rolling scale that contains oil | |
| JP2006063179A (en) | Carbonizing apparatus | |
| JP4147218B2 (en) | Carbonization equipment | |
| JP5896227B2 (en) | Exhaust gas treatment method and apparatus for firing furnace | |
| JP6417157B2 (en) | Cement kiln exhaust gas treatment method |