JP2005171043A - Method of transportation of ethylene-propylene-based copolymer rubber - Google Patents
Method of transportation of ethylene-propylene-based copolymer rubber Download PDFInfo
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- JP2005171043A JP2005171043A JP2003411429A JP2003411429A JP2005171043A JP 2005171043 A JP2005171043 A JP 2005171043A JP 2003411429 A JP2003411429 A JP 2003411429A JP 2003411429 A JP2003411429 A JP 2003411429A JP 2005171043 A JP2005171043 A JP 2005171043A
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本発明は、エチレン-プロピレン系共重合体ゴムの輸送方法に関するものである。更に詳しくは、本発明は、エチレン-プロピレン系共重合体ゴムの輸送方法において、モノマーを共重合して得られたゴム（クラム）に付着する水を脱水する工程の後、該クラムを所定の場所に空送するに際し、空送途中の通路におけるクラムの付着を防止し、よって極めて円滑に空送することができるという優れた特徴を有するエチレン-プロピレン系共重合体ゴムの輸送方法に関するものである。 The present invention relates to a method for transporting ethylene-propylene copolymer rubber. More specifically, the present invention relates to a method for transporting an ethylene-propylene copolymer rubber, and after the step of dehydrating water adhering to rubber (crumb) obtained by copolymerizing monomers, It relates to a method of transporting an ethylene-propylene copolymer rubber having an excellent feature of preventing crumbs from adhering to a passage in the middle of air transportation, and thereby enabling extremely smooth air transportation. is there.
エチレン-プロピレン系共重合体ゴムの輸送方法において、モノマーを共重合して得られたゴム（クラム）を得、次にクラムに付着する水を脱水した後、該クラムを所定の場所に空送することは公知である（たとえば、特許文献１参照。）。しかしながら、従来の方法によると空送途中の通路においてクラムが付着し、円滑な操作を妨げるという問題があった。 In the method of transporting ethylene-propylene copolymer rubber, a rubber (crumb) obtained by copolymerizing monomers is obtained, and then water adhering to the crumb is dehydrated, and then the crumb is sent to a predetermined place by air. It is known (see, for example, Patent Document 1). However, according to the conventional method, there is a problem in that crumbs adhere to the passage in the middle of air transportation and hinder smooth operation.
かかる状況の下、本発明が解決しようとする課題は、エチレン-プロピレン系共重合体ゴムの輸送方法において、モノマーを共重合して得られたゴム（クラム）に付着する水を脱水する工程の後、該クラムを所定の場所に空送するに際し、空送途中の通路におけるクラムの付着を防止し、よって極めて円滑に空送することができるという優れた特徴を有するエチレン-プロピレン系共重合体ゴムの輸送方法を提供する点にある。 Under such circumstances, the problem to be solved by the present invention is a process of dehydrating water adhering to rubber (crumb) obtained by copolymerizing monomers in a method for transporting ethylene-propylene copolymer rubber. Thereafter, when the crumb is air-fed to a predetermined place, the ethylene-propylene copolymer has an excellent feature that it prevents the crumb from adhering to the passage in the middle of the air-fed and thus can be air-fed very smoothly. It is in providing a method for transporting rubber.
すなわち、本発明は、エチレン-プロピレン系共重合体ゴムの輸送方法において、モノマーを共重合して得られたゴム（クラム）に付着する水を脱水する工程の後、該クラムを所定の場所に空送するに際し、空送工程の入口部に水又はシリコンと水の混合液を噴霧するエチレン−プロピレン系共重合体の輸送方法に係るものである。 That is, the present invention relates to a method for transporting ethylene-propylene copolymer rubber, and after the step of dewatering water adhering to rubber (crumb) obtained by copolymerizing monomers, the crumb is put in place. In the case of air transportation, the present invention relates to a method for transporting an ethylene-propylene copolymer in which water or a mixed solution of silicon and water is sprayed at the inlet of the air transportation process.
本発明により、エチレン-プロピレン系共重合体ゴムの輸送方法において、モノマーを共重合して得られたゴム（クラム）に付着する水を脱水する工程の後、該クラムを所定の場所に空送するに際し、空送途中の通路におけるクラムの付着を防止し、よって極めて円滑に空送することができるという優れた特徴を有するエチレン-プロピレン系共重合体ゴムの輸送方法を提供することができる。 According to the present invention, in the method of transporting ethylene-propylene copolymer rubber, after the step of dewatering water adhering to the rubber (crumb) obtained by copolymerizing the monomer, the crumb is air-fed to a predetermined place. In doing so, it is possible to provide a method for transporting an ethylene-propylene copolymer rubber having an excellent feature that crumbs are prevented from adhering to a passage in the middle of air transportation, and can thus be air transported very smoothly.
本発明のエチレン-プロピレン系共重合体ゴムとしては、エチレンとプロピレンの二元共重合体及びエチレンとプロピレンと非共役ジエンモノマーの三元共重合体が含まれる。非共役ジエンモノマーとしては、ジシクロペンタジエン、エチリデンノルボルネン等をあげることができる。エチレン／プロピレンのモル比は通常１．４／１〜５／１である。非共役ジエンモノマーの含有量はヨウ素価で通常２２以下である。 The ethylene-propylene copolymer rubber of the present invention includes a binary copolymer of ethylene and propylene and a terpolymer of ethylene, propylene and a non-conjugated diene monomer. Examples of the non-conjugated diene monomer include dicyclopentadiene and ethylidene norbornene. The molar ratio of ethylene / propylene is usually 1.4 / 1 to 5/1. The content of the non-conjugated diene monomer is usually 22 or less in terms of iodine value.
モノマーを共重合することによりゴム（クラム）が得られる。クラムの大きさは通常一辺が０．１〜２ｃｍの塊状である。 A rubber (crumb) is obtained by copolymerizing the monomers. The size of the crumb is usually a lump with a side of 0.1 to 2 cm.
クラムは付着する水を脱水するための脱水工程に付される。脱水工程は一段粗絞り乾燥機（エクスペラー）を用いて、ゴム中の水分を絞ることにより実施されるのが一般である。 The crumb is subjected to a dehydration process for dewatering the adhering water. In general, the dehydration step is carried out by squeezing the water in the rubber using a one-stage coarse-drawing dryer (expeller).
脱水工程後のクラムは所定の場所に空送により移動される。空送はたとえば直径１０〜３０ｃｍのダクト内を空気と共にクラムを輸送することにより行なわれる。 The crumb after the dehydration process is moved by air to a predetermined place. For example, air transportation is performed by transporting the crumb together with air in a duct having a diameter of 10 to 30 cm.
本発明の最大の特徴は、空送するに際し、空送工程の入口部に水又はシリコンと水の混合液を噴霧する点にある。このことにより、空送途中の通路におけるクラムの付着を防止し、よって極めて円滑に空送することができるという優れた効果を実現することができる。 The greatest feature of the present invention is that, when air-fed, water or a mixed solution of silicon and water is sprayed to the inlet of the air-fed process. As a result, it is possible to realize an excellent effect of preventing the crumb from adhering to the passage in the middle of the air transport, and thus enabling the air transport to be performed very smoothly.
噴霧するものは水又はシリコンと水の混合液である。水に比べシリコンと水の混合液は付着防止効果に一段と優れている。シリコンと水の割合（シリコン／水 の重量比）は１／９９〜３８／６２が好ましい。水又はシリコンと水の混合液の噴霧量は１.０〜５.０リッター／分とすることが好ましい。噴霧方法としてはスプレー方法をあげることができる。 What is sprayed is water or a mixture of silicon and water. Compared to water, the mixed solution of silicon and water is more excellent in adhesion prevention effect. The ratio of silicon to water (weight ratio of silicon / water) is preferably 1/99 to 38/62. The spray amount of water or a mixture of silicon and water is preferably 1.0 to 5.0 liters / minute. A spraying method can be mention | raise | lifted as a spraying method.
次に本発明を実施例により説明する。 Next, the present invention will be described with reference to examples.
実施例１
図１のシステムを用いた。エチレン-プロピレン−ジシクロペンタジエン共重合体ゴム（エチレン／プロピレンのモル比＝２．５／１、ヨウ素価＝１４）のクラム（一辺が０．３ｃｍの塊状）のものであって、一段粗絞り乾燥機（エクスペラー）で脱水されたものを空送工程へ供給した。空送は、直径２５ｃｍのダクト内を空気と共にクラムを輸送することにより行なった。空送工程の入口部にシリコンと水の混合液（シリコン／水の重量比＝２／９８）を圧縮空気と混合させる形式のスプレーにより、噴霧量３．０リッター／分で噴霧した。空送途中の通路におけるクラムの付着もなく、極めて円滑に空送することができた。
Example 1
The system of FIG. 1 was used. A crumb of ethylene-propylene-dicyclopentadiene copolymer rubber (methylene ratio of ethylene / propylene = 2.5 / 1, iodine value = 14) (a lump with a side of 0.3 cm), one-stage rough drawing What was dehydrated with a dryer (expeller) was supplied to the air transport process. Air transportation was performed by transporting crumbs together with air in a duct having a diameter of 25 cm. A mixture of silicon and water (silicone / water weight ratio = 2/98) was sprayed at a rate of 3.0 liters / min. There was no crumb adhering to the passage in the middle of the air transport, and the air could be transported very smoothly.
１ 水（軟水）
２ 圧縮エアー
３ 空送ブロア-
４ 噴霧するシリコンと水の混合液
５ クラム
６ ダクト
７ インペラー
1 Water (soft water)
2 Compressed air 3 Air blower
4 Silicone / water mixture to be sprayed 5 Clam 6 Duct 7 Impeller
Claims (2)
The transportation method according to claim 1, wherein the ratio of silicon to water (weight ratio of silicon / water) in the mixture of silicon and water is 1/99 to 38/62.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| JP2003411429A JP2005171043A (en) | 2003-12-10 | 2003-12-10 | Method of transportation of ethylene-propylene-based copolymer rubber |
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| JP2003411429A JP2005171043A (en) | 2003-12-10 | 2003-12-10 | Method of transportation of ethylene-propylene-based copolymer rubber |
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| JP2005171043A true JP2005171043A (en) | 2005-06-30 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007153979A (en) * | 2005-12-02 | 2007-06-21 | Sumitomo Chemical Co Ltd | Aftertreatment method of polyolefin pellet |
| EP2862687A1 (en) | 2013-10-15 | 2015-04-22 | Lanxess Elastomers B.V. | Process for conveying of rubber |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05506194A (en) * | 1990-04-20 | 1993-09-16 | エクソン・ケミカル・パテンツ・インク | Two-stage pneumatic conveying method for rubber cooling |
| JPH081669A (en) * | 1994-06-21 | 1996-01-09 | Mitsui Eng & Shipbuild Co Ltd | Method and apparatus for grinding waste plastic |
| JPH10193351A (en) * | 1996-12-23 | 1998-07-28 | Bayer Corp | Dehydrating and drying of ep(d)m |
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2003
- 2003-12-10 JP JP2003411429A patent/JP2005171043A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05506194A (en) * | 1990-04-20 | 1993-09-16 | エクソン・ケミカル・パテンツ・インク | Two-stage pneumatic conveying method for rubber cooling |
| JPH081669A (en) * | 1994-06-21 | 1996-01-09 | Mitsui Eng & Shipbuild Co Ltd | Method and apparatus for grinding waste plastic |
| JPH10193351A (en) * | 1996-12-23 | 1998-07-28 | Bayer Corp | Dehydrating and drying of ep(d)m |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007153979A (en) * | 2005-12-02 | 2007-06-21 | Sumitomo Chemical Co Ltd | Aftertreatment method of polyolefin pellet |
| EP2862687A1 (en) | 2013-10-15 | 2015-04-22 | Lanxess Elastomers B.V. | Process for conveying of rubber |
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