JPH03157430A - Production of approximately globular powder of polyhydric alcohol soluble substance and production apparatus for same powder - Google Patents
Production of approximately globular powder of polyhydric alcohol soluble substance and production apparatus for same powderInfo
- Publication number
- JPH03157430A JPH03157430A JP29578489A JP29578489A JPH03157430A JP H03157430 A JPH03157430 A JP H03157430A JP 29578489 A JP29578489 A JP 29578489A JP 29578489 A JP29578489 A JP 29578489A JP H03157430 A JPH03157430 A JP H03157430A
- Authority
- JP
- Japan
- Prior art keywords
- substance
- polyhydric alcohol
- thin film
- temperature
- soluble
- 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
- 239000000126 substance Substances 0.000 title claims abstract description 72
- 150000005846 sugar alcohols Polymers 0.000 title claims abstract description 28
- 239000000843 powder Substances 0.000 title claims abstract description 18
- 238000004519 manufacturing process Methods 0.000 title claims description 11
- 239000010409 thin film Substances 0.000 claims abstract description 36
- 238000001816 cooling Methods 0.000 claims abstract description 11
- 239000000463 material Substances 0.000 claims description 21
- 238000010438 heat treatment Methods 0.000 claims description 7
- 238000007790 scraping Methods 0.000 abstract description 6
- 238000001914 filtration Methods 0.000 abstract 1
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 15
- 238000000034 method Methods 0.000 description 12
- 239000004677 Nylon Substances 0.000 description 9
- 238000002844 melting Methods 0.000 description 9
- 230000008018 melting Effects 0.000 description 9
- 229920001778 nylon Polymers 0.000 description 9
- 239000002245 particle Substances 0.000 description 6
- 238000004090 dissolution Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 239000012768 molten material Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 2
- 238000000227 grinding Methods 0.000 description 2
- 238000006116 polymerization reaction Methods 0.000 description 2
- 239000002244 precipitate Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 229920002292 Nylon 6 Polymers 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 235000011187 glycerol Nutrition 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 235000011837 pasties Nutrition 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- 230000001376 precipitating effect Effects 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000002195 soluble material Substances 0.000 description 1
- 238000003756 stirring Methods 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、多価アルコールに溶解可能である物質、すな
わち多価アルコールに可溶な物質、たとえば、ナイロン
等の近似的に球状をなす粉末の製造法、及び製造装置に
関する。[Detailed Description of the Invention] [Industrial Application Field] The present invention is directed to the use of a substance that is soluble in polyhydric alcohol, that is, a substance that is soluble in polyhydric alcohol, for example, an approximately spherical powder such as nylon. The present invention relates to a manufacturing method and a manufacturing device.
従来のこの種の製造法及び製造装置にあっては、機械的
粉砕法、直接重合法、化学的粉末化法、及び、それらの
製造装置がある。Conventional manufacturing methods and manufacturing equipment of this type include mechanical pulverization methods, direct polymerization methods, chemical powdering methods, and their manufacturing equipment.
従来の機械的粉砕法、及びその装置にあっては、液体窒
素等で冷却しなければならない点、真球状に近づけるこ
とカニ殆ど不可能である点、粒状分布が広がる点、コス
ト高になる点、等の問題点があった。Conventional mechanical crushing methods and their equipment require cooling with liquid nitrogen, etc., are almost impossible to achieve a true spherical shape, have a wide particle distribution, and are expensive. There were problems such as.
従来の直接重合法、及びその装置にあっては、設備費が
高額になる点、コスト高になる点、等の問題点があった
。Conventional direct polymerization methods and their equipment have had problems such as high equipment costs and high costs.
従来の化学的粉末化法、及びその装置にあってはグリセ
リンやエチレングリコールに数チル２０数チのナイロン
等を高温で溶解し、それを冷却析出させるものであるが
、この方法及び装置においては、粒子相互が密着固化し
て、粒径を自由にコントロールすることが殆ど不可能で
ある問題点があった。Conventional chemical powdering methods and equipment involve dissolving a few liters of nylon or the like in glycerin or ethylene glycol at high temperature, and cooling and precipitating it. However, there was a problem in that the particles adhered to each other and solidified, making it almost impossible to freely control the particle size.
本発明は、このような従来の問題点を解決したナイロン
の如き多価アルコールに可溶な物質の近似的球状粉末の
製造法、及び製造装置を得ることを目的としている。The object of the present invention is to provide a method and apparatus for producing approximately spherical powder of a substance soluble in polyhydric alcohol, such as nylon, which solves these conventional problems.
上記の目的を達成するために、本発明の製造法において
は、多価アルコールに可溶な物質を高温多価アルコール
に溶解して高温溶解物質としこの高温溶解物質を薄膜状
に展開し冷却して低温薄膜物質としこの低温薄膜物質か
ら多価アルコールを除去するものである。本発明の製造
装置においては、多価アルコールに可溶な物質を高温多
価アルコールに溶解した高温溶解物質を収容し加熱部に
よって加熱される溶解槽を備えると共にベルトコンベア
を備えベルトコンベアの表面に向けて高温溶解物質を吐
出溶解物質として吐出する吐出ノズルを備ｔベルトコン
ベアの移動によって吐出溶解物質がベルトコンベア上に
形成した薄膜溶解物質を備え薄膜溶解物質を冷却して低
温薄膜物質とする冷却部を備え低温薄膜物質′ｆｒかき
取ってかき取り集積物質とするかき取り部を備えかき取
り集積物質の多価アルコールを遠心分離してろ過物質と
する遠心ろ過機を備えろ過物質の多価アルコールを除去
して粉末物質とする真空乾燥機を備えるものである。In order to achieve the above object, in the production method of the present invention, a substance soluble in polyhydric alcohol is dissolved in high-temperature polyhydric alcohol to form a high-temperature soluble substance, and this high-temperature soluble substance is spread into a thin film and cooled. The method uses a low-temperature thin film material and removes polyhydric alcohol from this low-temperature thin film material. The manufacturing apparatus of the present invention is provided with a dissolution tank which contains a high-temperature melted substance obtained by dissolving a substance soluble in polyhydric alcohol in high-temperature polyhydric alcohol and is heated by a heating section, and also includes a belt conveyor. A discharge nozzle is provided for discharging a high-temperature molten substance as a molten substance, and a thin film of molten substance is formed on the belt conveyor by the movement of a belt conveyor. A scraping section is provided to scrape off the low-temperature thin film material'fr to form a scraped and accumulated material.The device is equipped with a centrifugal filter that centrifugally separates the polyhydric alcohol from the scraped and accumulated material into a filtered material. The device is equipped with a vacuum dryer that removes the powder and turns it into a powder material.
多価アルコールに可溶な物質を高温多価アルコールに溶
解した高温溶解物質の温度が適当になるように加熱部で
加熱することができる。吐出ノズルから吐出された高温
溶解物質は吐出溶解物質となシ、ベルトコンベア上に薄
膜溶解物質を形成する。薄膜溶解物質はペルトコ／ベア
と共に移動しながら低温薄膜物質になり、この過程にお
いてナイロン如き多価アルコール可溶物質は析出して球
状になる。球状の多価アルコール可溶物質は多価アルコ
ールと混合状態にあって、低温薄膜物質は全体としてペ
ースト状を呈する。低温溶解物質？適当に収容し、適当
に多価アルコ−を除去して、球状の多価アルコール可溶
物質の粉末が得られる。A substance soluble in polyhydric alcohol can be heated in the heating section so that the temperature of the high-temperature dissolved substance obtained by dissolving the substance in high-temperature polyhydric alcohol is appropriate. The high-temperature molten material discharged from the discharge nozzle becomes a discharged molten material and forms a thin film of molten material on the belt conveyor. The thin film-dissolved substance becomes a low-temperature thin film substance while moving with the PeltoCo/Bear, and in this process, polyhydric alcohol-soluble substances such as nylon precipitate and become spherical. The spherical polyhydric alcohol-soluble material is in a mixed state with the polyhydric alcohol, and the low-temperature thin film material has a paste-like appearance as a whole. Low-temperature melting substance? By properly storing and removing the polyhydric alcohol, a spherical powder of polyhydric alcohol-soluble substance is obtained.
１は攪拌モーターであシ、その下端のプロペラ３を溶解
槽２の中で回転させる。４は加熱ジャケットの如き加熱
部であり、たとえばスティームによって溶解槽２を加熱
する。溶解槽２の中には多価アルコールに可溶な物質、
すなわち多価アルコール可溶物質、たとえばナイロン等
を高温多価アルコールに溶解した高温溶解物質１５が収
容されている。ポンプ６によって高温溶解物質１５を吐
出ノズル１０からペルトコ／ベア９の表面に吐出する。1 is a stirring motor, which rotates a propeller 3 at the lower end in the dissolution tank 2. 4 is a heating section such as a heating jacket, which heats the melting tank 2 using, for example, steam. In the dissolution tank 2, there are substances soluble in polyhydric alcohol,
That is, a high-temperature soluble substance 15, which is a polyhydric alcohol-soluble substance such as nylon dissolved in high-temperature polyhydric alcohol, is accommodated. The pump 6 discharges the high-temperature molten substance 15 from the discharge nozzle 10 onto the surface of the PeltoCo/Bear 9.
Ｔは高温溶解物質１５を通す配管であり、この配管７に
はポンプ６とバルブ５とが設けられている。１１はノズ
ル１２から噴出させられてベルトコンベア９の裏面に当
てられている温水シャワーの如き冷却部である。冷却部
１１用の温水はポンプ８によって配管１３全通して供給
される。１４はベルトコンベア９の表面終端部に当てら
れているかき取りへらの如きかき取部である。吐出ノズ
ル１０から吐出された吐出溶解物質１６がベルトコンベ
ア９上に供給されて薄膜にされた薄膜溶解物質２０は冷
却部１１によシ冷却されて低温薄膜物質１７となシ、か
き取り部１４によシかき取られて受槽１８に収容される
。たとえば、エチレングリコール２００リツトルとナイ
ロン乙のペレット４０キログラムとを溶解槽２に収容し
て高温溶解物質１ｓｔ加熱部４によって約１５０°Ｃに
調節する。バルブ５を操作して薄膜溶解物質２０の厚さ
を約０．５〜１．０ミリメートルになるようにする。薄
膜溶解物質２０は約１０秒位で約７０°Ｃ位までに冷却
されて低温薄膜物質１７となるように冷却部１１を操作
する。このような条件下では低温薄膜物質１７はクリー
ムのようなまたは石けんのようなペースト状を呈する。T is a pipe through which the high-temperature melting substance 15 passes, and this pipe 7 is provided with a pump 6 and a valve 5. Reference numeral 11 denotes a cooling section such as a hot water shower, which is sprayed from a nozzle 12 and applied to the back surface of the belt conveyor 9. Hot water for the cooling section 11 is supplied through the entire piping 13 by the pump 8. Reference numeral 14 denotes a scraping portion such as a scraping spatula that is applied to the end portion of the surface of the belt conveyor 9. The discharged dissolved substance 16 discharged from the discharge nozzle 10 is supplied onto the belt conveyor 9, and the thin-film dissolved substance 20 is cooled by the cooling section 11 to form a low-temperature thin-film substance 17, and the scraped-off section 14 It is scraped off and stored in the receiving tank 18. For example, 200 liters of ethylene glycol and 40 kilograms of nylon pellets are placed in the dissolving tank 2 and adjusted to about 150° C. by the high-temperature melting substance 1st heating section 4. The valve 5 is operated so that the thickness of the thin film dissolved substance 20 is approximately 0.5 to 1.0 mm. The cooling unit 11 is operated so that the thin film dissolved substance 20 is cooled down to about 70° C. in about 10 seconds and becomes a low temperature thin film substance 17. Under these conditions, the low temperature thin film material 17 assumes a cream-like or soap-like pasty appearance.
受槽１８に収容されたかき取り集積物質１９を遠心ろ過
機２１にかけてエチレングリコールの大部分を遠心ろ過
して分離しろ過物質とする。このろ過物質にまだ残って
いるエチレングリコールを真空乾燥機２２によって除去
すると直径約３０ミクロン位の粒のそろったほぼ球形に
近い純白のナイロン６の粉末物質が得られる。歩留りは
約９７．５％位である。The scraped and accumulated material 19 contained in the receiving tank 18 is passed through a centrifugal filter 21 to centrifugally filter and separate most of the ethylene glycol into a filtered material. When the ethylene glycol still remaining in this filtered material is removed by a vacuum dryer 22, a pure white nylon 6 powder material with uniform particles of approximately 30 microns in diameter and a nearly spherical shape is obtained. The yield is about 97.5%.
球形の直径は高温溶解物質１５の温度、成分比率、薄膜
溶解物質２０の厚さ、低温薄膜物質１７の温度、冷却時
間全調節することによってコントロールされる。たとえ
ば高温溶解物質１５の温度を高くすると球径が大になり
、また低温薄膜物質１７の温度を低くすると球径が小に
なる傾向を有する。球径は、たとえば約１ミクロン以下
のサブミクロン程度から約５０ミクロン以上の程度まで
、殆ど自由にコントロールすることができるものであシ
、シかもその球径の分布は非常にシャープである。ナイ
ロン乙の濃度を５チ程度にすると、３０〜４０ミクロン
程度のいがぐり形状の粒子粉末が得られる。The diameter of the sphere is controlled by controlling the temperature of the high temperature melting material 15, the component ratio, the thickness of the thin film melting material 20, the temperature of the low temperature thin film material 17, and the cooling time. For example, increasing the temperature of the high-temperature melting substance 15 tends to increase the spherical diameter, and lowering the temperature of the low-temperature thin film substance 17 tends to decrease the spherical diameter. The sphere diameter can be controlled almost freely, for example from a submicron level of about 1 micron or less to about 50 microns or more, and the distribution of the sphere diameter is very sharp. When the concentration of nylon Otsu is set to about 5%, burr-shaped powder particles of about 30 to 40 microns can be obtained.
エチレングリコールの如き多価アルコールは純品である
ので回収してくり返して使用することができる。従って
廃液は生じないので下水を汚染することがなく、廃液処
理設備は不要である。Since polyhydric alcohols such as ethylene glycol are pure products, they can be recovered and used repeatedly. Therefore, no waste liquid is generated, so sewage water is not contaminated, and waste liquid treatment equipment is not required.
吐出ノズル１０はベルトコンベア９の移動方向に対して
直角をなす方向に長く開口しておシ、薄膜溶解物質２０
と低温薄膜物質１７とはベルトコンベア９の表面に帯状
に横たわって形成されることになる。ベルトコンベア９
の表面の両側には薄膜溶解物質２０がこＩ？１″れない
ように立縁全役けておいた方がよい。The discharge nozzle 10 has a long opening in a direction perpendicular to the moving direction of the belt conveyor 9, and has a thin film of dissolved substance 20.
The low-temperature thin film material 17 is formed in a band-like manner on the surface of the belt conveyor 9. Belt conveyor 9
There is a thin film of dissolved substance 20 on both sides of the surface of I? It is better to use the full length of the standing edge to avoid losing 1″.
ナイロン等が析出して球状になるのは、薄膜溶解物質２
０から低温薄膜物質１７に移行する過程において行なわ
れる。The reason why nylon etc. precipitates and becomes spherical is due to the thin film dissolved substance 2.
This is done in the process of transitioning from 0 to low temperature thin film material 17.
プロペラ３によシ高温溶解物質１５を攪拌して均等化す
る。The high temperature melting substance 15 is stirred and homogenized by the propeller 3.
本発明においては、多価アルコールの殆どを回収し再利
用することができる。In the present invention, most of the polyhydric alcohol can be recovered and reused.
実施例は薄膜溶解物質２０から低温薄膜物質に移行させ
るための一つの方法を示したものであってこの方法に限
るものではない。The example shows one method for transferring the thin film dissolved substance 20 to a low temperature thin film substance, and is not limited to this method.
本発明は、ナイロンのほか、他の多価アルコール可溶物
質の近似球状粉末の製造に適用することができる。The present invention can be applied to the production of approximately spherical powders of nylon and other polyhydric alcohol-soluble substances.
本発明は、多価アルコール可溶物質の近似球状粉末の製
造に当たって、以上説明したように構成されているので
、以下に記載されるような効果を奏する。Since the present invention is configured as described above in producing an approximately spherical powder of a polyhydric alcohol-soluble substance, it produces the effects described below.
球状に極めて近い粉末を製造できる。It is possible to produce powder that is extremely spherical.
球径の粒度分布をシャープにできる。The particle size distribution of sphere diameter can be sharpened.
球径のコントロールを容易に、かつ正確にできる。Ball diameter can be controlled easily and accurately.
球状から外れた形状の粉末、極端な場合には針状の粉末
でも製造できる。Powders with non-spherical shapes and, in extreme cases, needle-shaped powders can also be produced.
公害問題が生じないようにできる。It is possible to prevent pollution problems from occurring.
低コストで製造できる。Can be manufactured at low cost.
第１図は、本発明の実施例の系統図である。
２：溶解槽、４：加熱部、９：ベルトコンベア、１０：
吐出ノズル、１１：冷却部、１４：かき取り部、１５：
高温溶解物質、１６：吐出溶解物質、１７：低温薄膜物
質、１９：かき取り集積物質、２０：薄膜溶解物質、２
１：遠心ろ過機、２２：真空乾燥機FIG. 1 is a system diagram of an embodiment of the present invention. 2: Melting tank, 4: Heating section, 9: Belt conveyor, 10:
Discharge nozzle, 11: cooling section, 14: scraping section, 15:
High temperature dissolved substance, 16: Discharged dissolved substance, 17: Low temperature thin film substance, 19: Scraped and accumulated substance, 20: Thin film dissolved substance, 2
1: Centrifugal filter, 22: Vacuum dryer
Claims (1)
に溶解して高温溶解物質（１５）とし、この高温溶解物
質（１５を薄膜状に展開し冷却して低温薄膜物質（１７
）とし、この低温薄膜物質（１７）から多価アルコール
を除去することを特徴とする多価アルコール可溶物質の
近似球状粉末の製造法 ２、多価アルコールに可溶な物質を高温多価アルコール
に溶解した高温溶解物質（１５）を収容し加熱部（４）
によつて加熱される溶解槽（２）を備えると共とベルト
コンベア（９）を備え、ベルトコンベア（９）の表面に
向けて高温溶解物質（１５）を吐出溶解物質（１６）と
して吐出する吐出ノズル（１０）を備え、ベルトコンベ
ア（９）の移動によつて吐出溶解物質（１６）がベルト
コンベア（９）上に形成した薄膜溶解物質（２０）を備
え、薄膜溶解物質（２０）を冷却して低温薄膜物質（１
１）とする冷却部（１１）を備え、低温薄膜物質（１７
）をかき取つてかき取り集積物質（１９）とするかき取
り部（１４）を備え、かき取り集積物質（１９）の多価
アルコールを遠心ろ過してろ過物質とする遠心ろ過機（
２１）を備え、ろ過物質の多価アルコールを除去して粉
末物質とする真空乾燥機（２２）を備えることを特徴と
する多価アルコール可溶物質の近似球状粉末の製造装置[Claims] 1. A substance soluble in polyhydric alcohol is dissolved in high temperature polyhydric alcohol to obtain a high temperature soluble substance (15), and this high temperature soluble substance (15) is developed into a thin film and cooled to form a low temperature thin film. Substance (17
) and removing the polyhydric alcohol from this low-temperature thin film material (17) 2. A method for producing an approximate spherical powder of a polyhydric alcohol-soluble substance, which is characterized by removing the polyhydric alcohol from the polyhydric alcohol-soluble substance A heating section (4) containing a high temperature molten substance (15) dissolved in
and a belt conveyor (9), which discharges a high-temperature melted substance (15) as a melted substance (16) toward the surface of the belt conveyor (9). A discharge nozzle (10) is provided, and a thin film of the dissolved substance (20) is formed on the belt conveyor (9) by the movement of the belt conveyor (9). Cool to form a low-temperature thin film material (1
A cooling section (11) with a low temperature thin film material (17) is provided.
A centrifugal filter (
21), and a vacuum dryer (22) for removing the polyhydric alcohol from the filtered substance to obtain a powder substance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP29578489A JPH03157430A (en) | 1989-11-14 | 1989-11-14 | Production of approximately globular powder of polyhydric alcohol soluble substance and production apparatus for same powder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP29578489A JPH03157430A (en) | 1989-11-14 | 1989-11-14 | Production of approximately globular powder of polyhydric alcohol soluble substance and production apparatus for same powder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03157430A true JPH03157430A (en) | 1991-07-05 |
Family
ID=17825116
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP29578489A Pending JPH03157430A (en) | 1989-11-14 | 1989-11-14 | Production of approximately globular powder of polyhydric alcohol soluble substance and production apparatus for same powder |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03157430A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006126563A1 (en) * | 2005-05-25 | 2006-11-30 | Toray Industries, Inc. | Polyamide resin fine particles and process for production thereof |
| JP2007056085A (en) * | 2005-08-23 | 2007-03-08 | Toray Ind Inc | Fine polycapramide resin particle and cosmetic containing the same |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2639278A (en) * | 1950-12-22 | 1953-05-19 | Polymer Corp | Method of preparing finely divided nylon powder |
| JPS62240325A (en) * | 1986-04-11 | 1987-10-21 | Sekisui Plastics Co Ltd | Production of nylon powder |
-
1989
- 1989-11-14 JP JP29578489A patent/JPH03157430A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2639278A (en) * | 1950-12-22 | 1953-05-19 | Polymer Corp | Method of preparing finely divided nylon powder |
| JPS62240325A (en) * | 1986-04-11 | 1987-10-21 | Sekisui Plastics Co Ltd | Production of nylon powder |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006126563A1 (en) * | 2005-05-25 | 2006-11-30 | Toray Industries, Inc. | Polyamide resin fine particles and process for production thereof |
| JP2007056085A (en) * | 2005-08-23 | 2007-03-08 | Toray Ind Inc | Fine polycapramide resin particle and cosmetic containing the same |
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