JPH04253790A - Method for disposing of waste by using coke dry quenching apparatus - Google Patents
Method for disposing of waste by using coke dry quenching apparatusInfo
- Publication number
- JPH04253790A JPH04253790A JP962891A JP962891A JPH04253790A JP H04253790 A JPH04253790 A JP H04253790A JP 962891 A JP962891 A JP 962891A JP 962891 A JP962891 A JP 962891A JP H04253790 A JPH04253790 A JP H04253790A
- Authority
- JP
- Japan
- Prior art keywords
- coke
- red
- waste oil
- extinguishing system
- coke dry
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000000571 coke Substances 0.000 title claims abstract description 57
- 239000002699 waste material Substances 0.000 title claims abstract description 34
- 238000000034 method Methods 0.000 title claims description 10
- 238000010791 quenching Methods 0.000 title abstract 4
- 230000000171 quenching effect Effects 0.000 title abstract 4
- 239000010802 sludge Substances 0.000 claims abstract description 26
- 239000002002 slurry Substances 0.000 claims abstract description 6
- 238000001816 cooling Methods 0.000 claims abstract description 3
- 239000011259 mixed solution Substances 0.000 claims 1
- 239000000203 mixture Substances 0.000 abstract 2
- 230000003247 decreasing effect Effects 0.000 abstract 1
- 238000000197 pyrolysis Methods 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 11
- 230000007423 decrease Effects 0.000 description 5
- 238000003756 stirring Methods 0.000 description 5
- 238000005979 thermal decomposition reaction Methods 0.000 description 4
- 239000000112 cooling gas Substances 0.000 description 3
- 239000000498 cooling water Substances 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 229930195733 hydrocarbon Natural products 0.000 description 2
- 150000002430 hydrocarbons Chemical class 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
Landscapes
- Treatment Of Sludge (AREA)
- Coke Industry (AREA)
Abstract
Description
【０００１】0001
【産業上の利用分野】この発明は、コークス乾式消火装
置を利用した廃棄物の処理方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for treating waste using a coke dry extinguishing system.
【０００２】0002
【従来の技術】コークス乾式消火装置は、コークス炉で
製造した赤熱コークス（１０００℃程度）を２００℃程
度に冷却してやるための装置である。そして、その装置
構成は、図２に示すようなものになっている。すなわち
、コークス乾式消火装置２１の上部に設けたクレーン（
図示せず）で赤熱コークスを、このコークス乾式消火装
置２１の上部から装入し、コークス乾式消火装置２１の
下部からは赤熱コークス冷却用ガス（窒素ガス）を、冷
却ガス循環配管２２を通してファン２３で送り込み、コ
ークス乾式消火装置２１の内部で熱交換して、赤熱コー
クスを冷却する。冷却されたコークスはコークス乾式消
火装置２１の下部から取り出されるが、熱交換して高温
になった冷却用ガスは、循環配管２２の途中に設けた熱
交換器２４に入り、冷却水供給設備２５により供給され
る冷却水と熱交換して低温となり、再び赤熱コークス冷
却用として使用される。一方、冷却水は熱交換により蒸
気となり、工場操業用の加熱源として使用される。2. Description of the Related Art A coke dry extinguishing system is a device for cooling red-hot coke (approximately 1000°C) produced in a coke oven to approximately 200°C. The device configuration is as shown in FIG. In other words, a crane (
Red-hot coke is charged from the upper part of the coke dry extinguishing system 21 using a dry coke extinguishing system 21 (not shown), and a red-hot coke cooling gas (nitrogen gas) is supplied from the lower part of the coke dry extinguishing system 21 through the cooling gas circulation pipe 22 to the fan 23. The red-hot coke is cooled by heat exchange inside the coke dry extinguishing system 21. The cooled coke is taken out from the lower part of the coke dry extinguishing system 21, but the cooling gas that has become high temperature through heat exchange enters the heat exchanger 24 installed in the middle of the circulation piping 22, and is transferred to the cooling water supply equipment 25. It exchanges heat with the cooling water supplied by the system, becomes low temperature, and is used again to cool red-hot coke. On the other hand, cooling water becomes steam through heat exchange and is used as a heating source for factory operations.
【０００３】ところで、上述したようなコークス乾式消
火装置２１に活性汚泥を赤熱コークスと混在する形で装
入し、赤熱コークスの保有する熱エネルギーを利用して
、活性汚泥を焼却処理してしまうことが行なわれている
。この場合、活性汚泥は水分を含んだスラリー状態で装
入するようにしているが、これは活性汚泥がもともと水
中で利用されるものであるので、必然的に水分を含んで
いるとともに、乾燥して装入するのでは、乾燥費が莫大
となったり、装入しにくいという問題があるからである
。By the way, it is possible to charge activated sludge mixed with red-hot coke into the above-mentioned coke dry fire extinguishing system 21 and incinerate the activated sludge using the thermal energy possessed by the red-hot coke. is being carried out. In this case, activated sludge is charged in the form of a slurry containing water, but since activated sludge is originally used underwater, it inevitably contains water and dries. This is because there are problems in that drying costs are enormous and charging is difficult.
【０００４】0004
【発明が解決しようとする課題】しかしながら、従来の
コークス乾式消火装置で活性汚泥を焼却処理してしまう
方法においては、次のような問題点があった。
（１）水を分解するための熱エネルギーが必要となるた
め、その分だけ蒸気の発生量が低下する。
（２）化１に示す水性ガス反応により、コークス歩留が
低下する。[Problems to be Solved by the Invention] However, the conventional method of incinerating activated sludge using a coke dry extinguishing system has the following problems. (1) Since thermal energy is required to decompose water, the amount of steam generated decreases accordingly. (2) Due to the water gas reaction shown in Chemical formula 1, the coke yield decreases.
【０００５】[0005]
【化１】[Chemical formula 1]
【０００６】この発明は、従来技術の上述のような問題
点を解消し、活性汚泥を蒸気の発生量を低下させないと
ともに、コークス歩留も低下させないで焼却処理し、か
つ廃棄油を熱分解させるコークス乾式消火装置による廃
棄物処理方法を提供することを目的としている。The present invention solves the above-mentioned problems of the prior art, incinerates activated sludge without reducing the amount of steam generated, and does not reduce coke yield, and thermally decomposes waste oil. The purpose is to provide a waste treatment method using a coke dry fire extinguishing system.
【０００７】[0007]
【課題を解決するための手段】この発明に係るコークス
乾式消火装置による廃棄物処理方法は、赤熱コークスの
乾式消火装置に、装入した赤熱コークスと接触するよう
に、スラリー状態にした活性汚泥と廃棄油の混合液を導
入し、赤熱コークスの冷却消火と、活性汚泥の焼却およ
び廃棄油の熱分解を同時に行なうものである。[Means for Solving the Problems] A waste treatment method using a coke dry extinguishing system according to the present invention includes a dry extinguishing system for red-hot coke in which activated sludge in a slurry state is brought into contact with charged red-hot coke. A mixed liquid of waste oil is introduced to simultaneously cool and extinguish red-hot coke, incinerate activated sludge, and thermally decompose waste oil.
【０００８】[0008]
【作用】この発明に係るコークス乾式消火装置による廃
棄物処理方法は、赤熱コークスの乾式消火装置に、装入
した赤熱コークスと接触するように、スラリー状態にし
た活性汚泥と廃棄油の混合液を導入し、赤熱コークスの
冷却消火と、活性汚泥の焼却および廃棄油の熱分解を同
時に行なうようにしている。[Operation] The waste treatment method using a coke dry extinguishing system according to the present invention is to supply a mixed liquid of activated sludge and waste oil in a slurry state to a red-hot coke dry extinguishing system so as to come into contact with the charged red-hot coke. The system simultaneously cools and extinguishes red-hot coke, incinerates activated sludge, and thermally decomposes waste oil.
【０００９】このようにすると、活性汚泥とともにコー
クス乾式消火装置に導入された水分は、廃棄油の熱分解
によって発生する熱エネルギーにより熱分解されるので
、赤熱コークスの保有する熱エネルギーが水分の熱分解
に使用されず、したがって蒸気の発生量が低下すること
はない。[0009] In this way, the water introduced into the coke dry extinguishing system together with the activated sludge is thermally decomposed by the thermal energy generated by the thermal decomposition of the waste oil, so the thermal energy possessed by the red-hot coke is absorbed by the heat of the water. It is not used for decomposition and therefore does not reduce the amount of steam produced.
【００１０】また、水分はコークスとは反応せず、廃棄
油の熱分解によって生成されるＣＯ２や炭化水素と反応
するので、コークス歩留が低下することもない。Furthermore, since water does not react with coke but with CO2 and hydrocarbons produced by thermal decomposition of waste oil, the coke yield does not decrease.
【００１１】[0011]
【実施例】本発明の１実施例のコークス乾式消火装置に
よる廃棄物処理方法を図１により説明する。本発明の１
実施例のコークス乾式消火装置による廃棄物処理方法は
、コークス乾式消火装置２１に隣接して、汚泥タンク１
、廃油タンク２および攪拌槽３を設ける。そして、汚泥
タンク１に蓄えたスラリー状の活性汚泥をポンプ４によ
り、また廃油タンク２に蓄えた廃油をポンプ５で攪拌槽
３に送る。攪拌槽３では、ミキサー６で活性汚泥と廃油
を攪拌して、均質な状態にした後、ポンプ７でコークス
乾式消火装置２１に装入する。[Embodiment] A waste treatment method using a coke dry fire extinguishing system according to an embodiment of the present invention will be explained with reference to FIG. 1 of the present invention
In the waste treatment method using the coke dry extinguishing system of the embodiment, a sludge tank 1 is installed adjacent to the coke dry extinguishing system 21.
, a waste oil tank 2 and a stirring tank 3 are provided. The slurry activated sludge stored in the sludge tank 1 is sent to the stirring tank 3 by the pump 4, and the waste oil stored in the waste oil tank 2 is sent to the stirring tank 3 by the pump 5. In the stirring tank 3, the activated sludge and waste oil are stirred in a mixer 6 to become homogeneous, and then charged into a coke dry extinguishing system 21 by a pump 7.
【００１２】コークス乾式消火装置２１に赤熱コークス
に接するようにして装入された活性汚泥と廃油の混合液
は、赤熱コークスの熱エネルギーにより熱分解される。
そして、廃油は熱エネルギー源となって水分の熱分解に
寄与するとともに、廃棄油の熱分解によって生成される
ＣＯ２や炭化水素は水分と反応するので、水分がコーク
スと水性ガス反応を起こすことはない。[0012] The mixed liquid of activated sludge and waste oil charged into the coke dry extinguishing device 21 so as to be in contact with the red-hot coke is thermally decomposed by the thermal energy of the red-hot coke. The waste oil becomes a source of thermal energy and contributes to the thermal decomposition of water, and the CO2 and hydrocarbons produced by the thermal decomposition of the waste oil react with the water, so the water does not cause a water gas reaction with coke. do not have.
【００１３】なお、コークス乾式消火装置により、１例
として１０トン／日の活性汚泥の処理が可能である。ま
た、経済性を考えた場合、廃油対汚泥の比率は、５０〜
７０対５０〜３０が最適である。[0013] The coke dry extinguishing system can process, for example, 10 tons/day of activated sludge. In addition, when considering economic efficiency, the ratio of waste oil to sludge should be 50~
70:50-30 is optimal.
【００１４】上述のようにして活性汚泥を焼却処理する
と、コークス乾式消火装置２１により発生する蒸気量が
減ることもなく、またコークスの歩留が低下することも
ない。更には、廃棄油の焼却処理も同時に行なえるので
、廃棄油の処理費が安くなる。When the activated sludge is incinerated as described above, the amount of steam generated by the coke dry extinguishing device 21 does not decrease, and the coke yield does not decrease. Furthermore, since the waste oil can be incinerated at the same time, the cost for processing the waste oil is reduced.
【００１５】[0015]
【発明の効果】この発明により、活性汚泥を蒸気の発生
量を低下させないとともに、コークス歩留も低下させな
いで焼却処理し、かつ廃棄油を熱分解して焼却処理する
ことができる。According to the present invention, activated sludge can be incinerated without reducing the amount of steam generated or coke yield, and waste oil can be thermally decomposed and incinerated.
【図１】本発明の１実施例のコークス乾式消火装置によ
る廃棄物処理方法を示す説明図である。FIG. 1 is an explanatory diagram showing a waste treatment method using a coke dry fire extinguishing system according to an embodiment of the present invention.
【図２】コークス乾式消火装置の説明図である。FIG. 2 is an explanatory diagram of a coke dry fire extinguishing system.
１ 汚泥タンク ２ 廃油タンク ３ 攪拌槽 ４ ポンプ ５ ポンプ ６ ミキサー ７ ポンプ 1. Sludge tank 2 Waste oil tank 3 Stirring tank 4 Pump 5 Pump 6 Mixer 7 Pump
Claims (1)
した赤熱コークスと接触するように、スラリー状態にし
た活性汚泥と廃棄油の混合液を導入し、赤熱コークスの
冷却消火と、活性汚泥の焼却および廃棄油の熱分解を同
時に行なうことを特徴とするコークス乾式消火装置によ
る廃棄物処理方法。Claim 1: A mixed solution of activated sludge and waste oil in a slurry state is introduced into a red-hot coke dry extinguishing system so as to come into contact with the charged red-hot coke, thereby cooling and extinguishing the red-hot coke and extinguishing the activated sludge. A waste treatment method using a coke dry fire extinguishing system characterized by simultaneously incinerating and thermally decomposing waste oil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP962891A JPH04253790A (en) | 1991-01-30 | 1991-01-30 | Method for disposing of waste by using coke dry quenching apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP962891A JPH04253790A (en) | 1991-01-30 | 1991-01-30 | Method for disposing of waste by using coke dry quenching apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH04253790A true JPH04253790A (en) | 1992-09-09 |
Family
ID=11725522
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP962891A Pending JPH04253790A (en) | 1991-01-30 | 1991-01-30 | Method for disposing of waste by using coke dry quenching apparatus |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH04253790A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003035799A1 (en) * | 2001-10-19 | 2003-05-01 | Nippon Steel Corporation | Method of processing biomass in coke dry quenching equipment |
-
1991
- 1991-01-30 JP JP962891A patent/JPH04253790A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003035799A1 (en) * | 2001-10-19 | 2003-05-01 | Nippon Steel Corporation | Method of processing biomass in coke dry quenching equipment |
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