JPS63235394A - Method of transporting tar sludge - Google Patents
Method of transporting tar sludgeInfo
- Publication number
- JPS63235394A JPS63235394A JP6916487A JP6916487A JPS63235394A JP S63235394 A JPS63235394 A JP S63235394A JP 6916487 A JP6916487 A JP 6916487A JP 6916487 A JP6916487 A JP 6916487A JP S63235394 A JPS63235394 A JP S63235394A
- Authority
- JP
- Japan
- Prior art keywords
- sludge
- tar
- viscosity
- tar sludge
- solid
- 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
- 239000010802 sludge Substances 0.000 title claims abstract description 61
- 238000000034 method Methods 0.000 title claims description 11
- 238000010008 shearing Methods 0.000 claims abstract description 5
- 238000003756 stirring Methods 0.000 claims description 13
- 239000007787 solid Substances 0.000 abstract description 18
- 239000002245 particle Substances 0.000 abstract description 17
- 239000000571 coke Substances 0.000 abstract description 3
- 230000002093 peripheral effect Effects 0.000 abstract description 2
- 238000003763 carbonization Methods 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- 239000012530 fluid Substances 0.000 description 5
- 239000003245 coal Substances 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical compound [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 1
- 239000004484 Briquette Substances 0.000 description 1
- 238000013019 agitation Methods 0.000 description 1
- 235000019270 ammonium chloride Nutrition 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明はタールスラッジの輸送方法に係り、詳しくはタ
ールスラッジを配管輸送する方法に関する。DETAILED DESCRIPTION OF THE INVENTION (Industrial Field of Application) The present invention relates to a method for transporting tar sludge, and more particularly to a method for transporting tar sludge through a pipe.
（従来の技術）
コークス炉乾留ガスからのタール回収工程においてター
ルデカンタ−で排出されるスラッジ、あるいはタール貯
蔵中にタンク内に堆積するスラッジ等のタールスラッジ
は、成形炭の原料等として使用されているが、いずれも
粘性の強いタール中に石炭粉あるいはコークス粉が多量
に存在したもので−１取扱いが非常に困難である。(Prior art) Tar sludge, such as sludge discharged from a tar decanter during the tar recovery process from coke oven carbonized gas, or sludge accumulated in a tank during tar storage, is used as a raw material for briquette coal, etc. However, all of them contain a large amount of coal powder or coke powder in highly viscous tar, making them extremely difficult to handle.
タールスラッジの輸送方法としてはベルトコンベア等を
用いる方法があるが、輸送中の臭気発生等の問題がある
。There is a method of transporting tar sludge using a belt conveyor, etc., but there are problems such as generation of odor during transport.
また、タールスラッジを流動化して密閉状態で連続的に
輸送する方法も提案されている０例えば、特公昭５４−
１５４５０号公報には、タールスラッジを粉砕機により
粉砕し、約４０〜８０℃において、これに余剰汚泥を混
合し攪拌してスラリー化する方法が記載されている。In addition, a method of fluidizing tar sludge and transporting it continuously in a sealed state has also been proposed.
Publication No. 15450 describes a method in which tar sludge is pulverized by a pulverizer, and surplus sludge is mixed with the sludge at about 40 to 80° C. and stirred to form a slurry.
しかし、この方法は工程が多段階にわたり操作が繁雑で
あるばかりでな（、種々の設備を必要とする。However, this method not only involves multiple steps and is complicated to operate (and requires various equipment).
（発明が解決しようとする問題点）
本発明の目的は、操作が簡単でしかも複雑な設備を必要
としない手段を用いてタールスラッジの粘度を低下させ
、配管輸送することにある。(Problems to be Solved by the Invention) An object of the present invention is to reduce the viscosity of tar sludge using a means that is easy to operate and does not require complicated equipment, and to transport the tar sludge through a pipe.
（問題点を解決するための手段）
本発明者らは上記の目的を達成するため研究を行い、剪
断力を有する攪拌機を用いてタールスラッジを撹拌、混
合すればタールスラッジの粘度を低下させ、タールスラ
ッジの配管輸送が可能となることを見出し、本発明を完
成した。すなわち、本発明は剪断力を有する撹拌機を用
いてタールスラッジを攪拌、混合することによりタール
スラッジを剪断し、粘度を低下させたのち、タールスラ
ッジを配管輸送するタールスラッジの輸送方法である。(Means for Solving the Problems) The present inventors conducted research to achieve the above object, and found that if the tar sludge is stirred and mixed using a stirrer having shear force, the viscosity of the tar sludge can be reduced, We have discovered that it is possible to transport tar sludge through pipes, and have completed the present invention. That is, the present invention is a method for transporting tar sludge, in which the tar sludge is agitated and mixed using a stirrer having a shearing force to shear the tar sludge to reduce its viscosity, and then the tar sludge is transported through a pipe.
以下、本発明の詳細な説明する。The present invention will be explained in detail below.
タールスラッジにはコークス炉乾留ガスからのクール回
収工程においてクールデカンタ−で排出されるスラッジ
やタール貯蔵中にタンク内にｆ［ａするスラッジなどが
ある。これらのタールスラッジは石炭粉、コークス粉等
の固形粒子とタール、水等の液体分との混合物よりなる
。固形分の多くはタール等をバインダーとして凝集し、
凝集体を形成している１本発明ではこの凝集体を固形分
粒子凝集体と呼ぶ、タールスラッジは掻めて高粘度の固
液混和物質であるため、取板いが非常に回能であり、こ
のままでは配管輸送することは実質的に不可能である。Tar sludge includes sludge discharged from a cool decanter during the cool recovery process from coke oven carbonized gas, and sludge that is stored in a tank during tar storage. These tar sludges consist of a mixture of solid particles such as coal powder and coke powder and liquid components such as tar and water. Most of the solid content coagulates with tar etc. as a binder,
In the present invention, these aggregates are called solid particle aggregates.Since tar sludge is a solid-liquid mixture with high viscosity, it is very difficult to remove the plate. In this state, it is virtually impossible to transport via piping.
本発明者らの知見によれば、タールスラッジが高粘度を
呈する原因はタールスラッジ中に大きな固形分粒子ａ！
！体、特に径がＱ、１ｍｍ以上の大きさの固形分粒子凝
集体が存在することにある゛とが判明した。また、固形
分粒子が凝集体を形成セず単独で存在するときは固形分
粒子の径が０．１ｍｍより大きくても粘度に与える影響
が小さい。According to the findings of the present inventors, the reason why tar sludge exhibits high viscosity is due to large solid particles a!
! It has been found that this is due to the presence of particles, especially solid particle aggregates with a diameter of Q, 1 mm or more. Further, when the solid particles exist alone without forming aggregates, even if the diameter of the solid particles is larger than 0.1 mm, the influence on the viscosity is small.
本発明においてタールスラッジを剪断するということは
、タールスラッジ中の固形分粒子凝集体を各固形分粒子
又はこの固形分粒子凝集体より小さいａ気体に分割する
ことを意味する０本発明者らの知見によれば、これは剪
断力を有する撹拌機で攪拌、混合することによって達成
されることが判明した。In the present invention, shearing the tar sludge means dividing the solid particle aggregates in the tar sludge into each solid particle or a gas smaller than the solid particle aggregates. Knowledge has shown that this can be achieved by stirring and mixing with a stirrer with shear forces.
したがって、本発明では剪断力を有する′ａ拌機を用い
て攪拌、混合することによってタールスラッジを剪断す
る。このような攪拌機としてはプロペラス、タービン寓
、円板インペラー等の攪拌翼を有する撹拌機がある。こ
の撹拌機は硬い固形勧賞粒子自体を粉砕する作用は少な
いが、固形物雪粒子が弱い力で凝集しているＪｔｆｉ体
を分割するという作用を生せしめる。タールスラッジの
撹拌混合はタールスラッジの粘度が所定の粘廣好ましく
は２５０ｐ以下になるまで行う、ＷＬ拌、混合は、通常
の攪拌舅型の攪拌機の場合回転速度は１００〜４００
ｒ、ｐ、ｓ、、周速度５〜２０ｍ／ｓｅｃ程度以上とし
、３〜５分間程度行うことが望ましい。Therefore, in the present invention, the tar sludge is sheared by stirring and mixing using a stirrer having a shearing force. Examples of such a stirrer include those having stirring blades such as propellers, turbines, disc impellers, and the like. This stirrer has a small effect of crushing the hard solid reward particles themselves, but produces an effect of dividing the Jtfi bodies in which the solid snow particles are agglomerated with a weak force. Stirring and mixing of the tar sludge is performed until the viscosity of the tar sludge becomes a predetermined viscosity, preferably 250p or less. WL stirring and mixing are performed using a normal stirring arm-shaped stirrer at a rotation speed of 100 to 400.
r, p, s, It is desirable to set the circumferential speed to about 5 to 20 m/sec or higher and to carry out for about 3 to 5 minutes.
撹拌翼の周速度が５＋ｙ１７ｓｅｃ未満のときは、ター
ルスラッジの粘度が２５０ｐ以下になるまでに長時間を
要することがある。なお、この際の温度は常温で差し支
えない。When the circumferential speed of the stirring blade is less than 5+y17 seconds, it may take a long time until the viscosity of the tar sludge becomes 250p or less. Note that the temperature at this time may be room temperature.
本発明においては、ａ拌、混合により粘度が低下したタ
ールスラッジを配管輸送する。この配管輸送は往復動型
ポンプ、スクリュー型ポンプ、チューブ型ポンプ等を原
動力として行うことができる。この際、タールスラッジ
の流速が０．０５〜０．２ｍ／ｓｅｃ程度となるように
するのがよい。In the present invention, tar sludge whose viscosity has been reduced by agitation and mixing is transported through a pipe. This pipe transportation can be carried out using a reciprocating pump, screw pump, tube pump, etc. as the driving force. At this time, it is preferable that the flow velocity of the tar sludge is approximately 0.05 to 0.2 m/sec.
それ以下では効率が悪いし、それ以上にしようとすると
ポンプに大きな負何がかかる。Anything less than that will be inefficient, and trying to make more than that will cost the pump a lot of money.
本発明−二おいては、攪拌、混合する前又は後にタール
スラッジに他の流体を添加してもよい、添加する流体は
油、水、水溶液、含水又は含油スラッジ等があるが粘度
が２５０ｐ以下のものがよい。In the present invention-2, other fluids may be added to the tar sludge before or after stirring and mixing.The fluids to be added include oil, water, aqueous solution, water-containing or oil-containing sludge, but the viscosity is 250p or less. The one is good.
添加流体の種類にもよるがこれらの流体を加えることに
より攪拌、混合による粘度の低下の度合が大きくなる傾
向がある。Although it depends on the type of added fluid, the addition of these fluids tends to increase the degree of viscosity reduction due to stirring and mixing.
本発明者らの知見によると、安水処理工程で生成する脱
油スラッジや凝沈スラッジ等の安水スラッジには、ター
ルスラッジ中の固形分粒子や固形分粒子凝集体が凝集す
るのを防止する作用があることが見出された。したがっ
て、これらの安水スラッジを前記の流体としてタールス
ラッジに添加することは、配管輸送中にタールスラッジ
中の固形分粒子や固形分粒子凝集体が再凝集することを
防止する点から有利である。この作用は安水スラッジの
添加量がタールスラッジに対して５０Ｗ【％を鰯えたと
き番こ著しくなる。なお、安水スラノジは多くの場合粘
度が２５０ｐ以下であり、タールスラッジの粘度を低下
させる作用並びにタールスラッジを攪拌することによる
粘度低下の度合いを大きくする作用も有する。According to the findings of the present inventors, low water sludge such as deoiled sludge and coagulated sludge produced in the low water treatment process prevents solid particles and solid particle aggregates in tar sludge from agglomerating. It was found that it has the effect of Therefore, adding these ammonium sludges to tar sludge as the above-mentioned fluid is advantageous in terms of preventing solid particles and solid particle aggregates in tar sludge from re-agglomerating during pipe transportation. . This effect becomes most noticeable when the amount of ammonium sludge added is 50W% of the tar sludge. Note that ammonium chloride has a viscosity of 250p or less in most cases, and has the effect of reducing the viscosity of tar sludge as well as the effect of increasing the degree of viscosity reduction by stirring tar sludge.
（実施例） 以下に本発明の一実施例を示す。(Example) An example of the present invention is shown below.
実施例１
タールスラッジ１００重量部に安水処理工程で生成する
脱油スラッジ（水分７０％）３０重量部と凝沈スラッジ
（水分８０％）１７０重量部を添加し、プロペラ翼付攪
拌機を用いて攪拌した。攪拌翼の回転速度は２００ｒ、
ｐ、ｍ、 、周速度は１０ｍ／ｓｅｅであった。３．５
分後、タールスラッジの粘度は２００ｐになった。この
タールスラッジをチューブポンプを原動力として０．１
ｍ／ｓｅｃの流速で、直径１５０ｍｍ、長さ３００ｍの
配管輸送したところ、長期間に渡って安定して輸送する
ことができた。Example 1 30 parts by weight of deoiled sludge (70% water) and 170 parts by weight of flocculated sludge (80% water) produced in the ammonium water treatment process were added to 100 parts by weight of tar sludge, and the mixture was mixed using a stirrer with propeller blades. Stirred. The rotation speed of the stirring blade is 200r,
The peripheral speed was 10 m/see. 3.5
After minutes, the viscosity of the tar sludge was 200p. This tar sludge is 0.1
When transported through a pipe with a diameter of 150 mm and a length of 300 m at a flow rate of m/sec, stable transport was possible for a long period of time.
（発明の効果）
本発明によれば、剪断力を有する攪拌機を用いて攪拌、
混合するだけで、タールスラッジの配管輸送が可能とな
り、環境上、設備費も有利である。(Effect of the invention) According to the present invention, stirring using a stirrer having shear force,
Just by mixing, tar sludge can be transported through pipes, which is advantageous from an environmental perspective and equipment cost.
Claims (1)
拌、混合することによりタールスラッジを剪断し、粘度
を低下させたのち、タールスラッジを配管輸送すること
を特徴とするタールスラッジの輸送方法。1. A method for transporting tar sludge, which comprises stirring and mixing the tar sludge using an agitator with shearing force to shear the tar sludge and reduce its viscosity, and then transporting the tar sludge through a pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6916487A JPS63235394A (en) | 1987-03-25 | 1987-03-25 | Method of transporting tar sludge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6916487A JPS63235394A (en) | 1987-03-25 | 1987-03-25 | Method of transporting tar sludge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63235394A true JPS63235394A (en) | 1988-09-30 |
Family
ID=13394793
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6916487A Pending JPS63235394A (en) | 1987-03-25 | 1987-03-25 | Method of transporting tar sludge |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63235394A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4819220B2 (en) * | 1998-10-19 | 2011-11-24 | エコ／テクノロジーズ・エルエルシー | Apparatus and method for co-combusting sludge with municipal solid waste or other fuel in a combustion apparatus |
-
1987
- 1987-03-25 JP JP6916487A patent/JPS63235394A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4819220B2 (en) * | 1998-10-19 | 2011-11-24 | エコ／テクノロジーズ・エルエルシー | Apparatus and method for co-combusting sludge with municipal solid waste or other fuel in a combustion apparatus |
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