JPS591371B2 - Granulation equipment - Google Patents
Granulation equipmentInfo
- Publication number
- JPS591371B2 JPS591371B2 JP4092080A JP4092080A JPS591371B2 JP S591371 B2 JPS591371 B2 JP S591371B2 JP 4092080 A JP4092080 A JP 4092080A JP 4092080 A JP4092080 A JP 4092080A JP S591371 B2 JPS591371 B2 JP S591371B2
- Authority
- JP
- Japan
- Prior art keywords
- coal
- slurry
- granulation
- oil
- coal slurry
- 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.)
- Expired
Links
- 238000005469 granulation Methods 0.000 title claims description 21
- 230000003179 granulation Effects 0.000 title claims description 21
- 239000003250 coal slurry Substances 0.000 claims description 34
- 238000003756 stirring Methods 0.000 claims description 27
- 239000011230 binding agent Substances 0.000 claims description 10
- 239000003245 coal Substances 0.000 description 45
- 239000002245 particle Substances 0.000 description 33
- 239000002002 slurry Substances 0.000 description 14
- 239000008187 granular material Substances 0.000 description 13
- 239000003921 oil Substances 0.000 description 9
- 235000019198 oils Nutrition 0.000 description 9
- 238000009826 distribution Methods 0.000 description 8
- 239000000295 fuel oil Substances 0.000 description 6
- 239000000203 mixture Substances 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 238000011084 recovery Methods 0.000 description 4
- 238000001035 drying Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000009817 primary granulation Methods 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 238000009818 secondary granulation Methods 0.000 description 3
- 230000018044 dehydration Effects 0.000 description 2
- 238000006297 dehydration reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000008188 pellet Substances 0.000 description 2
- UNPLRYRWJLTVAE-UHFFFAOYSA-N Cloperastine hydrochloride Chemical compound Cl.C1=CC(Cl)=CC=C1C(C=1C=CC=CC=1)OCCN1CCCCC1 UNPLRYRWJLTVAE-UHFFFAOYSA-N 0.000 description 1
- 239000000571 coke Substances 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000008399 tap water Substances 0.000 description 1
- 235000020679 tap water Nutrition 0.000 description 1
- 235000015112 vegetable and seed oil Nutrition 0.000 description 1
- 239000008158 vegetable oil Substances 0.000 description 1
Landscapes
- Glanulating (AREA)
- Solid Fuels And Fuel-Associated Substances (AREA)
Description
【発明の詳細な説明】
この発明は、石炭スラリー中の石炭粒子を造粒するさい
に適用される石炭スラリーの造粒装置に関するものであ
る。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a coal slurry granulation apparatus that is applied to granulate coal particles in a coal slurry.
一般に、石炭をその産地から港湾まで輸送する場合には
、輸送距離が長くなり、このため石炭をたとえば粒径５
ｍｍ以下程度の粒子に粉砕し、これを水に分散させるこ
とにより石炭スラリーとし、この石炭スラリーをパイプ
・ラインによって輸送することが多くなっている。Generally, when transporting coal from its production area to a port, the transport distance is long, so coal is
Coal slurry is produced by pulverizing coal into particles on the order of mm or less and dispersing them in water, and this coal slurry is increasingly transported by pipe line.
輸送に適した石炭スラリーの石炭濃度は、たとえば５０
〜６０重量係であるが、スラリー中の石炭粒子は比較的
粒度分布の広い状態、すなわち、たとえば直径約５１ｔ
Ｎ以下の粉炭からミクロン単位の微粉炭までの状態であ
る方が、輸送動力および輸送量等の関係からして好都合
である。The coal concentration of coal slurry suitable for transportation is, for example, 50
~60% by weight, but the coal particles in the slurry have a relatively wide particle size distribution, that is, for example, about 51t in diameter.
It is more convenient to have a state of pulverized coal ranging from N or less to pulverized coal in micron order from the viewpoint of transportation power, amount of transportation, etc.
ところが、輸送後においては石炭粒子をスラリーから取
り出すために脱水、乾燥等の作業を行なう必要があり、
石炭スラリー中に微粉炭が含まれていると、脱水のさい
にフィルターの目詰りを起こして、脱水効率が著しく低
下し、また乾燥に長時間を要し、さらに貯蔵後の取り出
しのさいブリッジ現象が生じたり、粉塵が飛散するなど
の問題があった。However, after transportation, it is necessary to perform dewatering, drying, etc. to remove the coal particles from the slurry.
If the coal slurry contains pulverized coal, it will clog the filter during dewatering, significantly reducing the dewatering efficiency, taking a long time to dry, and causing bridging phenomenon when taking out the slurry after storage. There were problems such as the generation of dust and the scattering of dust.
この発明は、上記の問題を解決するためになされたもの
で、輸送後の石炭スラリー中の石炭粒子を効果的に造粒
することができ、ひいては石炭スラリーからの石炭粒子
の取出し作業を非常に円滑に行なうことができるように
した石炭スラリーの造粒装置を提供しようとするもので
ある。This invention was made in order to solve the above problem, and it is possible to effectively granulate coal particles in coal slurry after transportation, and it also greatly simplifies the work of extracting coal particles from coal slurry. It is an object of the present invention to provide a coal slurry granulation device that allows smooth granulation of coal slurry.
この発明を、以下図面に示す実施例に基づいて説明する
。This invention will be explained below based on embodiments shown in the drawings.
第１図は、石炭スラリーの造粒方法の概略を示すもので
ある。FIG. 1 schematically shows a method for granulating coal slurry.
同図に示すように、まず粒径約５ｎ以下の石炭粒子を含
む石炭スラリーに対して結合剤を添加したのち、このス
ラリーをたとえばホモミキサーおよびホモジナイザー等
の攪拌装置によってたとえば約２０００〜９０００ｒ−
の高速回転で攪拌して結合剤を分散させ、石炭粒子の表
面に結合剤を付着させて、一時造粒を行なう。As shown in the figure, first, a binder is added to a coal slurry containing coal particles with a particle size of about 5 nm or less, and then this slurry is mixed with a stirring device such as a homomixer or a homogenizer for about 2,000 to 9,000 rpm.
The binder is dispersed by stirring at high speed rotation, and the binder is attached to the surface of the coal particles to perform temporary granulation.
なお結合剤としては油を使用する。Note that oil is used as the binder.
具体的には重油、溶油、軽油、蒸留残査油および植物油
などを使用する。Specifically, heavy oil, dissolved oil, light oil, distillation residue oil, vegetable oil, etc. are used.
石炭スラリーはたとえば石炭濃度５〜３０重量係を有し
ていて、輸送に適したものを造粒に適するように希釈し
たものであり、このスラリーに対しては油よりなる結合
剤を、スラリーの中の石炭量に対して１０〜２５重量係
の割合で添加する。Coal slurry, for example, has a coal concentration of 5 to 30% by weight, and is suitable for transport and diluted to be suitable for granulation.For this slurry, a binder consisting of oil is added to the slurry. It is added at a ratio of 10 to 25 parts by weight based on the amount of coal in the mixture.
なおこの場合、一般に石炭と油とは相互に親和性がある
ので、石炭粒子が水中に分散したスラリー中において、
石炭粒子と油とが親和性により結合して、石炭粒子の表
面に油が付着されたものである。In this case, coal and oil generally have an affinity for each other, so in a slurry in which coal particles are dispersed in water,
Coal particles and oil are bonded together due to their affinity, and the oil is attached to the surface of the coal particles.
つぎに、一時造粒後の石炭スラリーをこの発明にか＼る
造粒装置によってゆるく攪拌して、二次造粒を行ない、
含油ペレット状の比較的粒径の大きい造粒物を含む石炭
スラリーを得るものである。Next, the coal slurry after the temporary granulation is gently stirred by the granulation device according to the present invention to perform secondary granulation.
A coal slurry containing granules having a relatively large particle size in the form of oil-impregnated pellets is obtained.
この造粒物のスラリーは、その後の脱水、乾燥等の石炭
粒子の取出し作業を行なうのに適した大きさの造粒物を
含んでいるものである。This slurry of granules contains granules of a size suitable for subsequent removal operations of coal particles such as dehydration and drying.
第２図と第３図は、この発明にか５る石炭スラリーの造
粒装置を示すものである。FIGS. 2 and 3 show a coal slurry granulation apparatus according to the present invention.
同図において、石炭スラリーの造粒装置１は、結合剤が
添加された一時造粒後の石炭スラリーを収容する攪拌槽
２中に回転軸３が装備され、この回転軸３に全網製の攪
拌翼４が取り付けられてなるものである。In the figure, a coal slurry granulation device 1 is equipped with a rotating shaft 3 in a stirring tank 2 that accommodates temporarily granulated coal slurry to which a binder has been added. A stirring blade 4 is attached thereto.
この実施例では、円形のステンレス製金網よりなる攪拌
翼４が３枚使用され、これらの攪拌翼４が回転軸３に対
して直角状にかつ相互間に所定の間隔をあけた状態に取
付金具５によって取り付けられている。In this embodiment, three stirring blades 4 made of circular stainless steel wire mesh are used, and these stirring blades 4 are mounted at right angles to the rotating shaft 3 with a predetermined distance between them using mounting brackets. It is attached by 5.
各攪拌翼４は、具体的には線径０．５ ｍｒｒｔの針金
線が目開き５ｍｍの間隔で編まれた金網よりなるもので
、各攪拌翼４は円筒状攪拌槽２の内径の約５分の４の大
きさに相当する直径を有するとともに、攪拌翼４同志の
間には翼径の約５分の１の長さに相当する間隔があけら
れている。Specifically, each stirring blade 4 is made of a wire mesh in which wire wires with a wire diameter of 0.5 mrrt are woven at intervals of 5 mm, and each stirring blade 4 has a diameter of approximately 5 mm, which is the inner diameter of the cylindrical stirring tank 2. The stirring blades 4 have a diameter corresponding to four times the size of the blades, and a distance corresponding to one fifth of the blade diameter is provided between the stirring blades 4.
なお、６はモータで、これは回転軸３をたとえば１５０
〜３００ｒｐｍの比較的ゆるい速度で回転させるもので
ある。In addition, 6 is a motor, which rotates the rotating shaft 3 by, for example, 150 mm.
It is rotated at a relatively slow speed of ~300 rpm.
７は攪拌槽２の蓋である。一次造粒後の石炭スラリーを
、上記造粒装置１によってゆるく攪拌すると、攪拌槽２
の内壁あるいは金網よりなる攪拌翼４上における石炭粒
子の転勤が良好となって、水の移動を少なくかつ空気の
巻込み量を少なくして、しかも石炭粒子の動きをよくし
て攪拌することができ、これによって結合剤の付着した
石炭粒子同志の付着が良好となり、造粒作用が促進され
る。7 is a lid of the stirring tank 2. When the coal slurry after primary granulation is gently stirred by the granulation device 1, the stirring tank 2
The transfer of the coal particles on the stirring blade 4 made of the inner wall or wire mesh is improved, and the movement of water is reduced, the amount of air entrained is reduced, and the movement of the coal particles is improved for stirring. This improves the adhesion of the coal particles to which the binder is attached, promoting the granulation action.
またとくに石炭粒子が攪拌翼４の金網の目をくずって移
動するのがみられ、造粒効果がより一層増大されるもの
である。In addition, it was observed that the coal particles in particular broke through the mesh of the wire mesh of the stirring blades 4 and moved, further increasing the granulation effect.
なお、上記実施例においては、回転軸３に対して金網よ
りなる攪拌翼４が３枚取り付けられているが、これは少
なくとも１枚取り付けられておればよい。In the above embodiment, three stirring blades 4 made of wire mesh are attached to the rotating shaft 3, but it is sufficient that at least one stirring blade 4 is attached.
また攪拌翼４は回転軸３に対して直角状に取り付けられ
ているが、これは傾斜状に取り付けられていてもよい。Furthermore, although the stirring blades 4 are attached perpendicularly to the rotating shaft 3, they may be attached at an angle.
さらに回転軸３は縦方向、すｆＳわち垂直方向に配置さ
れているが、これは横方向、すなわち水平方向に配置さ
れる場合もある。Further, although the rotation axis 3 is arranged in the longitudinal direction, ie, the vertical direction, it may also be arranged in the lateral direction, ie, the horizontal direction.
また金網よりなる攪拌翼４の形状、大きさおよび網目の
大きさなどは、石炭粒子の大きさに対応させて適宜のも
のを使用することができるものである。Further, the shape, size, mesh size, etc. of the stirring blades 4 made of wire mesh can be appropriately selected depending on the size of the coal particles.
この発明にか５る石炭スラリーの造粒装置は、上述のよ
うに、結合剤が添加された石炭スラリーを収容する攪拌
槽２内に回転軸３が装備され、この回転軸３に全網製の
攪拌翼４が取り付けられているもので、石炭スラリーに
対する造粒効果が非常に大きく、たとえばパイプ・ライ
ン輸送後の石炭スラリー中の石炭粒子を、粒径の太きい
しかも粒度分布範囲の狭い含油ペレット状の粒体に造粒
することができ、これによって石炭粒子をスラリーから
取り出すための脱水および乾燥等の作業を非常に円滑に
行なうことができて、スラリーから石炭粒子を収率よく
回収することができ、このため石炭の輸送能率を大幅に
増大することができて、石炭の有効利用を図ることが可
能となり、非常に経済性が高いきいう効果を奏するもの
である。As described above, the coal slurry granulation device according to the present invention is equipped with a rotating shaft 3 in the stirring tank 2 that accommodates the coal slurry to which a binder has been added, and the rotating shaft 3 is equipped with a fully meshed This type is equipped with stirring blades 4 of It can be granulated into pellet-like granules, which makes it possible to perform operations such as dehydration and drying to remove coal particles from the slurry very smoothly, allowing coal particles to be recovered from the slurry in a high yield. Therefore, it is possible to greatly increase the efficiency of transporting coal, making it possible to use coal more effectively, and achieving a very economical effect.
つぎに、この発明の詳細な説明する。Next, this invention will be explained in detail.
実験例
（Ｉ） 石炭スラリーの調製
粒径３ｍｍ以下の粉粒法に粉砕した石炭を水道水中に攪
拌機で分散させ、石炭スラリーを調製した。Experimental Example (I) Preparation of Coal Slurry Coal pulverized by the powder method to a particle size of 3 mm or less was dispersed in tap water using a stirrer to prepare a coal slurry.
スラリー中の石炭濃度は７．５重量係とした。The coal concentration in the slurry was 7.5% by weight.
なお、粒径３ｍｍ以下の石炭原料の粒度分布の測定結果
を第４図に示した。Incidentally, the measurement results of the particle size distribution of coal raw materials with a particle size of 3 mm or less are shown in FIG.
同図の曲線イに示すように、石炭原料は粒径３龍以下の
粉炭と微粉炭が平均的に混合されていて、広い粒度分布
を有しており、これは石炭スラリーとしてパイプ・ライ
ン輸送を行なうのに適したものである。As shown in curve A of the same figure, the coal raw material is an average mixture of pulverized coal and pulverized coal with a particle size of 3 or less, and has a wide particle size distribution, and is transported by pipe line as coal slurry. It is suitable for carrying out.
（Ｉｔ） 一次造粒
つぎに、上記石炭スラリーに重油（共石Ｃ重油）よりな
る結合剤を添加し、ホモジナイザーで２０００ｒｐＴｖ
：）回転速度で１０分間攪拌し、重油をスラリー中に分
散させて、一次造粒を行なった。(It) Primary granulation Next, a binder made of heavy oil (common stone C heavy oil) was added to the above coal slurry, and the mixture was heated to 2000 rpTv using a homogenizer.
:) The mixture was stirred at a rotational speed for 10 minutes to disperse the heavy oil into the slurry, thereby performing primary granulation.
重油の添加量は、重油量／石炭量×１００で計算して、
１５．７重量係とした。The amount of heavy oil added is calculated as heavy oil amount/coal amount x 100,
It was set as 15.7 weight.
（明 二次造粒
つぎに、第３図に示すこの発明の石炭スラリーの造粒装
置１を使用して、一次造粒後の石炭スラリーを３枚の金
網製攪拌翼４により２５０ｒｐｍの回転速度で２時間攪
拌した。(Akira) Secondary granulation Next, using the coal slurry granulation apparatus 1 of the present invention shown in FIG. The mixture was stirred for 2 hours.
（関 スラリー中の造粒物
つぎに、二次造粒後の造粒物を５００μの大きさの透孔
を有するフルイ上で水中分級し、温度５０℃の恒温槽内
で付着水を除去し、含油ペレット状の石炭造粒物の回収
率を測定した。(The granules in the Seki slurry were then classified in water after secondary granulation on a sieve with holes of 500μ in size, and the adhering water was removed in a constant temperature bath at a temperature of 50℃. , the recovery rate of coal granules in the form of oil-impregnated pellets was measured.
回収率の計算は次式に従った。The recovery rate was calculated according to the following formula.
含油石炭造粒物量
回収率−Ｘ１００（重量％）
使用石炭量＋添加油量
この実験例では、含油石炭造粒物の回収率は９５．４重
量係であった。Recovery rate of oil-impregnated coal granules - X100 (weight %) Amount of coal used + amount of added oil In this experimental example, the recovery rate of oil-impregnated coal granules was 95.4% by weight.
得られた造粒物の粒度分布の測定結果を第４図の曲線口
に示した。The measurement results of the particle size distribution of the obtained granules are shown at the curved line in FIG.
この曲線口から分かるように、この発明の石炭スラリー
の造粒装置１によれば、粒径の大きいしかも粒度分布範
囲の狭い含油石炭造粒物を得ることができ、したがって
この発明の造粒装置１は、石炭スラリーに対して造粒効
果が顕著にすぐれていることが明らかである。As can be seen from this curved line, according to the coal slurry granulator 1 of the present invention, it is possible to obtain oil-impregnated coal granules having a large particle size and a narrow particle size distribution range. It is clear that No. 1 has a significantly superior granulation effect to coal slurry.
なお、この発明の石炭スラリーの造粒装置１は、コーク
スのスラリーに対しても適用可能である。Note that the coal slurry granulation device 1 of the present invention is also applicable to coke slurry.
第１図は石炭スラリーの造粒方法を例示するブロック図
、第２図と第３図はこの発明の実施例を示すもので、第
２図は回転軸に取り付けられた金網製攪拌翼の斜視図、
第３図は石炭スラリーの造粒装置の断面図、第４図は石
炭の粒度分布の測定結果を示す曲線図である。
１・・・・・・石炭スラリーの造粒装置、２・・・・・
・攪拌槽、３・・・・・・回転軸、４・・・・・・金網
製攪拌翼、イ・・・・・・石炭原料の粒度分布曲線、口
・・・・・・含油石炭造粒物の粒度分布曲線。Fig. 1 is a block diagram illustrating a coal slurry granulation method, Figs. 2 and 3 show embodiments of the present invention, and Fig. 2 is a perspective view of a wire mesh stirring blade attached to a rotating shaft. figure,
FIG. 3 is a cross-sectional view of the coal slurry granulation device, and FIG. 4 is a curve diagram showing the measurement results of the particle size distribution of coal. 1... Coal slurry granulation device, 2...
- Stirring tank, 3... Rotating shaft, 4... Wire mesh stirring blade, A... Particle size distribution curve of coal raw material, Mouth... Oil-impregnated coal production Particle size distribution curve of granules.
Claims (1)
２内に回転軸３が装備され、この回転軸３に全網製の攪
拌翼４が取り付けられている石炭スラリーの造粒装置。1. A coal slurry granulation device in which a rotating shaft 3 is installed in a stirring tank 2 that accommodates coal slurry to which a binder has been added, and a full-mesh stirring blade 4 is attached to this rotating shaft 3.
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4092080A JPS591371B2 (en) | 1980-03-28 | 1980-03-28 | Granulation equipment |
| US06/247,188 US4401278A (en) | 1980-03-28 | 1981-03-24 | Apparatus for granulating coal |
| AU68767/81A AU527842B2 (en) | 1980-03-28 | 1981-03-26 | Granulating apparatus |
| DE3111854A DE3111854C2 (en) | 1980-03-28 | 1981-03-26 | Granulator |
| GB8109521A GB2073649B (en) | 1980-03-28 | 1981-03-26 | Granulating apparatus |
| CA000374078A CA1162045A (en) | 1980-03-28 | 1981-03-27 | Method of agglomeration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4092080A JPS591371B2 (en) | 1980-03-28 | 1980-03-28 | Granulation equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS56136636A JPS56136636A (en) | 1981-10-26 |
| JPS591371B2 true JPS591371B2 (en) | 1984-01-11 |
Family
ID=12593930
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4092080A Expired JPS591371B2 (en) | 1980-03-28 | 1980-03-28 | Granulation equipment |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JPS591371B2 (en) |
| AU (1) | AU527842B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19926035B4 (en) * | 1999-06-02 | 2006-02-09 | Epc Engineering Und Projektmanagement Consulting Gmbh | Process and apparatus for the separation of polymer granules after granulation |
-
1980
- 1980-03-28 JP JP4092080A patent/JPS591371B2/en not_active Expired
-
1981
- 1981-03-26 AU AU68767/81A patent/AU527842B2/en not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| JPS56136636A (en) | 1981-10-26 |
| AU6876781A (en) | 1981-10-01 |
| AU527842B2 (en) | 1983-03-24 |
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