JP2001322155A - Method for removing solvent by twin-screw dewatering extruder and twin-screw dewatering extruder - Google Patents
Method for removing solvent by twin-screw dewatering extruder and twin-screw dewatering extruderInfo
- Publication number
- JP2001322155A JP2001322155A JP2000143600A JP2000143600A JP2001322155A JP 2001322155 A JP2001322155 A JP 2001322155A JP 2000143600 A JP2000143600 A JP 2000143600A JP 2000143600 A JP2000143600 A JP 2000143600A JP 2001322155 A JP2001322155 A JP 2001322155A
- Authority
- JP
- Japan
- Prior art keywords
- screw
- dewatering
- seal ring
- solution
- twin
- 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.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/50—Details of extruders
- B29C48/505—Screws
- B29C48/56—Screws having grooves or cavities other than the thread or the channel
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
- B29B7/34—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices
- B29B7/38—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary
- B29B7/46—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft
- B29B7/48—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft with intermeshing devices, e.g. screws
- B29B7/482—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft with intermeshing devices, e.g. screws provided with screw parts in addition to other mixing parts, e.g. paddles, gears, discs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
- B29B7/34—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices
- B29B7/38—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary
- B29B7/46—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft
- B29B7/48—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft with intermeshing devices, e.g. screws
- B29B7/482—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft with intermeshing devices, e.g. screws provided with screw parts in addition to other mixing parts, e.g. paddles, gears, discs
- B29B7/483—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft with intermeshing devices, e.g. screws provided with screw parts in addition to other mixing parts, e.g. paddles, gears, discs the other mixing parts being discs perpendicular to the screw axis
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
- B29B7/34—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices
- B29B7/38—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary
- B29B7/46—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft
- B29B7/48—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft with intermeshing devices, e.g. screws
- B29B7/488—Parts, e.g. casings, sealings; Accessories, e.g. flow controlling or throttling devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
- B29B7/34—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices
- B29B7/38—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary
- B29B7/46—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft
- B29B7/48—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft with intermeshing devices, e.g. screws
- B29B7/488—Parts, e.g. casings, sealings; Accessories, e.g. flow controlling or throttling devices
- B29B7/489—Screws
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/74—Mixing; Kneading using other mixers or combinations of mixers, e.g. of dissimilar mixers ; Plant
- B29B7/7476—Systems, i.e. flow charts or diagrams; Plants
- B29B7/7495—Systems, i.e. flow charts or diagrams; Plants for mixing rubber
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
- B29C48/40—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using two or more parallel screws or at least two parallel non-intermeshing screws, e.g. twin screw extruders
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/50—Details of extruders
- B29C48/505—Screws
- B29C48/57—Screws provided with kneading disc-like elements, e.g. with oval-shaped elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/50—Details of extruders
- B29C48/505—Screws
- B29C48/59—Screws characterised by details of the thread, i.e. the shape of a single thread of the material-feeding screw
- B29C48/60—Thread tops
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、プラスチック、例
えば乳化重合法によるＡＢＳや合成ゴムの製造工程にお
ける溶液の分離（脱溶液）・乾燥工程に利用する二軸脱
水押出機による脱溶液方法および二軸脱水押出機に関す
るものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for removing a solution by a twin-screw dewatering extruder used for a separation (de-solution) / drying step of a solution in a process for producing a plastic, for example, ABS or synthetic rubber by an emulsion polymerization method. It relates to a shaft dewatering extruder.
【０００２】[0002]
【従来の技術】先に本出願人は、実公平６−５８６５号
公報によって、次のような構成を有する二軸脱水押出機
を提案した。2. Description of the Related Art The present applicant has previously proposed a twin-screw dewatering extruder having the following configuration according to Japanese Utility Model Publication No. 6-5865.
【０００３】同４において、符号１で示されるものはシ
リンダである。このシリンダ１は、複数のシリンダＣ1
〜Ｃ8が上流側から順次直列配設されてなり、Ｃ1は供給
シリンダ、Ｃ2，Ｃ4は脱水スリット２を有する脱水シリ
ンダ、Ｃ3，Ｃ5，Ｃ6，Ｃ8は中間シリンダ、Ｃ7はベン
トシリンダである。[0003] In the above-mentioned 4, the reference numeral 1 denotes a cylinder. This cylinder 1 has a plurality of cylinders C 1
~C becomes 8 are sequentially serially disposed from the upstream side, C 1 dewatering cylinder supply cylinder, C 2, C 4 is having a dewatering slit 2, C 3, C 5, C 6, C 8 intermediate cylinder, C7 is a vent cylinder.
【０００４】このシリンダ１内には、一対のスクリュ軸
６が同方向に回転可能に並設されている。スクリュ軸６
には順ネジフライト３、ニーディングディスク４及びシ
ーリング部７が直列に設けられ、各順ネジフライト３
は、互いに軸方向において外径部がかみ合うように構成
されている。本実施例では、ニーディングディスク４及
びシーリング部７は、中間シリンダＣ5、Ｃ6の内部に位
置している。A pair of screw shafts 6 are arranged in the cylinder 1 so as to be rotatable in the same direction. Screw shaft 6
Is provided with a forward screw flight 3, a kneading disk 4, and a sealing portion 7 in series.
Are configured such that the outer diameter portions mesh with each other in the axial direction. In the present embodiment, the kneading disk 4 and the sealing portion 7 are located inside the intermediate cylinders C 5 and C 6 .
【０００５】以下、その動作について説明する。Hereinafter, the operation will be described.
【０００６】前記シールリング部７の上流側に供給され
た原料は、シールリング部７の各隙間によってその流れ
が制限されるために、シールリング部７の上流側で加圧
・圧縮され、含有溶液が絞り出される。原料中から絞り
出された溶液は、シリンダ１とスクリュ山頂部の隙間お
よび原料が充満されていないスクリュフライト溝に移動
して、圧力の低い脱水シリンダＣ2，Ｃ4側へ移動し、そ
の脱水スリット２から抜き出される。さらに、シールリ
ング部７の各隙間は、スクリュの回転数の変化に関係な
く一定しているので、シールリング部７の上流側におけ
る原料の溶融状態および加圧力が定常的であり、連続
的、かつ定常的に一定割合の原料を下流側へ搬送するこ
とができる。The raw material supplied to the upstream side of the seal ring portion 7 is pressurized and compressed upstream of the seal ring portion 7 because its flow is restricted by each gap of the seal ring portion 7 and contained therein. The solution is squeezed out. The solution squeezed out of the raw material moves to the gap between the cylinder 1 and the top of the screw and to the screw flight groove where the raw material is not filled, moves to the low pressure dehydrating cylinders C 2 and C 4 , and dehydrates it. It is extracted from the slit 2. Further, since each gap of the seal ring portion 7 is constant irrespective of a change in the rotational speed of the screw, the molten state of the raw material and the pressing force on the upstream side of the seal ring portion 7 are steady, In addition, a constant percentage of the raw material can be constantly conveyed to the downstream side.
【０００７】[0007]
【発明が解決しようとする課題】従来の二軸脱水押出機
では、ニーディングディスクとシーリング部により原料
中から絞り出された溶液が、送り効率の良い順ネジフラ
イトにより原料と共に、下流側（ダイス側）へ強制的に
輸送されので、脱溶液効率が向上しないという問題があ
った。In a conventional twin-screw dewatering extruder, a solution squeezed out of a raw material by a kneading disk and a sealing portion is fed to a downstream side (die) together with the raw material by a forward screw flight having a high feeding efficiency. Side), there is a problem that the solution removal efficiency is not improved.
【０００８】本発明は、上記問題点を解決するためにな
されたものであって、プラスチックや合成ゴムの脱溶液
工程における脱溶液効率が向上する二軸脱水押出機によ
る脱溶液方法および二軸脱水押出機を提供することを目
的とする。SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and there is provided a method for removing a solution by a twin-screw dewatering extruder which improves the efficiency of removing a solution in a step of removing a solution of plastic or synthetic rubber, and a twin-screw dewatering method. It is intended to provide an extruder.
【０００９】[0009]
【課題を解決するための手段】本発明による二軸脱水押
出機による脱溶液方法は、シリンダ内に設けられた一対
のスクリュ軸を用いて原料を輸送し、スクリュ軸に設け
たシールリング部により原料中から溶液を絞り出し、該
絞りだされた溶液を、シールリング部より上流側に設け
た脱水シリンダの脱水スリットを介して排出するように
した脱溶液方法において、脱水シリンダに対応する位置
からシールリング部のシールリング上流位置までのスク
リュ軸上に配置された順ネジフライトに、切り欠き部を
設け、該切り欠き部を介して前記溶液を脱水スリットに
移動して抜きとることを特徴とする。According to the present invention, there is provided a method for removing a solution using a twin-screw dewatering extruder, wherein a raw material is transported by using a pair of screw shafts provided in a cylinder, and a seal ring portion provided on the screw shaft. A solution is squeezed out of the raw material, and the squeezed solution is discharged through a dewatering slit of a dewatering cylinder provided on the upstream side of a seal ring portion. A notch is provided in the forward thread flight arranged on the screw shaft up to the seal ring upstream position of the ring portion, and the solution is moved to the dewatering slit via the notch and extracted. .
【００１０】本発明による二軸脱水押出機は、シリンダ
内に設けられた一対のスクリュ軸を用いて原料を輸送
し、スクリュ軸に設けたシールリング部により原料中か
ら溶液を絞り出し、該絞りだされた溶液を、シールリン
グ部より上流側の脱水シリンダに設けた脱水スリットを
介して排出するようにした二軸脱水押出機において、脱
水シリンダに対応する位置からシールリング部のシール
リング上流位置までのスクリュ軸上に配置された順ネジ
フライトに、切り欠き部を設けたことを特徴とする。In the twin-screw dewatering extruder according to the present invention, a raw material is transported by using a pair of screw shafts provided in a cylinder, and a solution is squeezed out of the raw material by a seal ring portion provided on the screw shaft. In the twin-screw dewatering extruder, which drains the solution through a dewatering slit provided in a dewatering cylinder upstream of the seal ring part, from a position corresponding to the dewatering cylinder to a seal ring upstream position of the seal ring part A notch is provided in the forward screw flight arranged on the screw shaft of (1).
【００１１】このように、順ネジフライトに切り欠き部
を設けたことにより、原料中から絞り出された溶液は、
原料の送り効率を落とすことなく上流側へ逆流する。こ
れにより、スリットからの脱溶液効率を上げることが可
能となる。As described above, by providing the notch portion in the forward screw flight, the solution squeezed out of the raw material can be
Backflow to the upstream side without lowering the feed efficiency of the raw material. This makes it possible to increase the efficiency of removing the solution from the slit.
【００１２】[0012]
【発明の実施の形態】本発明の実施の形態を実施例に基
づき図面を参照して説明する。なお、従来例と同一又は
同等部分については、同一符号を用いて説明する。DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described based on embodiments with reference to the drawings. The same or equivalent parts as those in the conventional example will be described using the same reference numerals.
【００１３】図１は、本発明による二軸脱水押出機の概
略全体構成図である。゛同図において、符号１で示され
るものはシリンダである。このシリンダ１は、複数のシ
リンダＣ1〜Ｃ8が上流側から順次直列配設されてなり、
Ｃ1は供給シリンダ、Ｃ2，Ｃ4は脱水スリットを有する
脱水シリンダ、Ｃ3，Ｃ5，Ｃ6，Ｃ8は中間シリンダ、Ｃ
9はベントシリンダである。FIG. 1 is a schematic overall configuration diagram of a twin-screw dewatering extruder according to the present invention.に お い て In the figure, the reference numeral 1 denotes a cylinder. The cylinder 1 has a plurality of cylinders C 1 to C 8 which are arranged in series from the upstream side in order.
C 1 is supplied cylinder, C 2, C 4 dewatering cylinder having a dewatering slit, C 3, C 5, C 6, C 8 are the intermediate cylinder, C
9 is a vent cylinder.
【００１４】このシリンダ１内には、一対のスクリュ軸
６が同方向に回転可能に並設されている。スクリュ軸６
には順ネジフライト３、ニーディングディスク４及びシ
ーリング部７が直列に設けられ、各順ネジフライト３
は、互いに軸方向において外径部がかみ合うように構成
されている。本実施例では、ニーディングディスク４及
びシーリング部７は、中間シリンダＣ５〜Ｃ６の内部に
位置している。A pair of screw shafts 6 are provided in the cylinder 1 so as to be rotatable in the same direction. Screw shaft 6
Is provided with a forward screw flight 3, a kneading disk 4, and a sealing portion 7 in series.
Are configured such that the outer diameter portions mesh with each other in the axial direction. In this embodiment, the kneading disk 4 and the sealing portion 7 are located inside the intermediate cylinders C5 to C6.
【００１５】脱水シリンダＣ2に対応する位置からシー
ルリング部７のシールリング８の上流位置までのスクリ
ュ軸３上に配置された順ネジフライト３には、切り欠き
部５が複数設けられている。この切り欠き部５は、スク
リュ軸６に対して平行または傾斜した切り欠き部とする
ことが好ましい。The forward screw flight 3 arranged on the screw shaft 3 from a position corresponding to the dewatering cylinder C 2 to a position upstream of the seal ring 8 of the seal ring portion 7 is provided with a plurality of notches 5. . The notch 5 is preferably a notch parallel or inclined to the screw shaft 6.
【００１６】図２はシールリング部の要部断面図であ
る。FIG. 2 is a sectional view of a main part of the seal ring portion.
【００１７】同図に示すように、シールリング部７は、
各スクリュ軸６毎に設けられた順ネジフライト３（また
はニーディングディスク４）の下流側に形成されてい
る。シールリング部７は、各スクリュ軸６毎に形成され
た片面にテーパ部８ａを有するほぼ円板形のシールリン
グ８がかみ合されて構成されている。なお、一方のシー
ルリング８のテーパー部８ａは上流側、他方のテーパー
部８ａは下流側の面に形成されている。As shown in FIG.
It is formed on the downstream side of the forward screw flight 3 (or kneading disk 4) provided for each screw shaft 6. The seal ring portion 7 is configured such that a substantially disk-shaped seal ring 8 having a tapered portion 8a on one surface formed for each screw shaft 6 is engaged. The tapered portion 8a of one seal ring 8 is formed on the upstream side, and the other tapered portion 8a is formed on the downstream side.
【００１８】各シールリング８の外径８ｂは、その軸方
向において互いにかみ合うように構成されていると共
に、この外径８ｂとシリンダ１の内径１ａの間には、隙
間ａ1が形成されている。各シールリング８のテーパー
部８ａの反対側に形成されている垂直面８ｃ間には、軸
方向隙間ａ2が形成されている。これにより、原料の通
過個所が、シールリング８の外径８ｂとシリンダ１の内
径１ａとの隙間ａ1および各シールリング８間の軸方向
隙間ａ2のみとなる。これらの各隙間ａ1，ａ2は、スク
リュ軸１の他の部位すなわち順ネジフライト部３の流路
面積よりも小さく構成されているので、原料の流れを制
限することができる。本実施例では、シールリング８の
上流位置までスクリュ軸６上に配置された順フライト３
に切り欠き部５が形成されている。The outer diameter 8b of each seal ring 8, together are configured to mate with each other in the axial direction, between the outer diameter 8b and the inner diameter 1a of the cylinder 1, the gap a 1 is formed . Between vertical plane 8c, which is formed on the opposite side of the tapered portion 8a of the sealing ring 8, the axial clearance a 2 is formed. As a result, the passage points of the raw material are only the gap a 1 between the outer diameter 8 b of the seal ring 8 and the inner diameter 1 a of the cylinder 1 and the axial gap a 2 between the seal rings 8. Since these gaps a 1 and a 2 are configured to be smaller than the other portion of the screw shaft 1, that is, the flow passage area of the forward screw flight portion 3, the flow of the raw material can be restricted. In the present embodiment, the forward flight 3 arranged on the screw shaft 6 up to the upstream position of the seal ring 8
A notch 5 is formed at the bottom.
【００１９】図３は他の実施例のシールリング部の要部
断面図である。FIG. 3 is a sectional view of a principal part of a seal ring portion according to another embodiment.
【００２０】同図に示すように、シールリング部７は、
各スクリュ軸６毎に形成された複数の円板形のシールリ
ング８，８がかみ合わされて構成されている。その他の
構成は、上記実施例と同一であるので、その説明は省略
する。As shown in FIG.
A plurality of disc-shaped seal rings 8, 8 formed for each screw shaft 6 are engaged with each other. Other configurations are the same as those of the above-described embodiment, and the description thereof is omitted.
【００２１】以下に、その動作について説明する。The operation will be described below.
【００２２】前記シールリング部７の上流側に供給され
た原料は、シールリング部７の各隙間によってその流れ
が制限されるために、シールリング部７の上流側で加圧
・圧縮され、含有溶液が絞り出される。原料中から絞り
出された溶液は、シリンダ１とスクリュ山頂部の隙間お
よび原料が充満されていないスクリュフライト溝並びに
順ネジフライト３に設けられた切り欠き部５に移動し
て、圧力の低い脱水シリンダＣ2，Ｃ2側へ移動し、脱水
スリット２から抜き出される。The raw material supplied to the upstream side of the seal ring portion 7 is pressurized and compressed upstream of the seal ring portion 7 because its flow is restricted by each gap of the seal ring portion 7 and contained therein. The solution is squeezed out. The solution squeezed out of the raw material moves to the gap between the cylinder 1 and the screw crest, the screw flight groove where the raw material is not filled, and the cutout portion 5 provided in the forward screw flight 3, and the dehydration with low pressure is performed. It is moved to the cylinders C 2 , C 2 side and extracted from the dewatering slit 2.
【００２３】さらに、シールリング部７の各隙間ａ1，
ａ2は、スクリュの回転数の変化に関係なく一定してい
るので、シールリング部７の上流側における原料の溶融
状態および加圧力が定常的であり、連続的、かつ定常的
に一定割合の原料を下流側へ搬送することができる。Furthermore, each gap a 1 ,
Since a 2 is constant irrespective of the change in the number of rotations of the screw, the molten state of the raw material and the pressing force on the upstream side of the seal ring portion 7 are steady, and the ratio of the constant and the constant is constant. Raw materials can be transported downstream.
【００２４】このように、順ネジフライト３に切り欠き
部５を設けたことにより、原料中から絞り出された溶液
は、原料の送り効率を落とすことなく上流側へ逆流す
る。これにより、脱水スリット２からの脱溶液効率を上
げることが可能となる。As described above, by providing the notch 5 in the forward screw flight 3, the solution squeezed out of the raw material flows backward to the upstream side without lowering the feed efficiency of the raw material. Thereby, the efficiency of removing the solution from the dewatering slit 2 can be increased.
【００２５】[0025]
【実施例】原料であるＥＰＤＭクラムを、二軸脱水押出
機として株式会社日本製鋼所製、ＴＥＭ６５αＩＩ−３
１．５ＡＷ−Ｖ（商品名）を用いて脱水・乾燥試験を行
った。なお、上記二軸脱水押出機のスクリュは、外径が
６５ｍｍ、Ｌ／Ｄが３１．５であり、主モータは、３０
０ＫＷの直流モータであり、スクリュ回転速度は、６０
〜６００ｒｐｍである。EXAMPLE EPDM crumb as a raw material was used as a twin-screw dewatering extruder as TEM65αII-3 manufactured by Japan Steel Works, Ltd.
A dehydration / drying test was performed using 1.5 AW-V (trade name). The screw of the twin-screw dewatering extruder has an outer diameter of 65 mm, an L / D of 31.5 and a main motor of 30.
0KW DC motor, screw rotation speed is 60
６００600 rpm.
【００２６】本発明による順ネジフライトに切り欠き部
を設けたものと、比較例の順ネジフライトに切り欠き部
を設けないものの試験結果を表１に示す。順ネジフライ
トに切り欠き部を設けたものは、脱溶液効率とスクリュ
回転数当たりの処理能力が大幅に向上している。Table 1 shows the test results of the notched portion of the forward thread according to the present invention and the notched portion of the forward flight of the comparative example. In the case of a notched portion in the forward screw flight, the solution removal efficiency and the processing capacity per screw rotation speed are greatly improved.
【００２７】[0027]
【表１】 [Table 1]
【００２８】[0028]
【発明の効果】従来、原料中から絞りだされた溶液の上
流側へ逆流する個所は、シリンダとスクリュ山頂部のス
キマおよび原料が充満されていないスクリュフライト溝
内のみであったが、本発明では、順ネジフライトに切り
欠き部を設けることにより、逆流する個所が増加し、二
軸脱水押出機の脱溶液効率を上げることできた。従っ
て、品質が向上すると共に、スクリュ回転数当たりの処
理能力を大幅に高めることができた。Conventionally, the only place where the solution squeezed out of the raw material flows back upstream is the gap between the cylinder and the top of the screw and the screw flight groove where the raw material is not filled. By providing a notch in the forward thread, the number of locations where the flow backwards was increased, and the desolvation efficiency of the twin-screw dewatering extruder could be increased. Therefore, the quality was improved and the processing capacity per screw rotation speed was able to be greatly increased.
【図１】本発明による二軸脱水押出機の概略全体構成図
である。FIG. 1 is a schematic overall configuration diagram of a twin-screw dewatering extruder according to the present invention.
【図２】シールリング部の要部断面図である。FIG. 2 is a sectional view of a main part of a seal ring portion.
【図３】他の実施例のシールリング部の要部断面図であ
る。FIG. 3 is a sectional view of a main part of a seal ring portion according to another embodiment.
【図４】従来の二軸脱水押出機の概略全体構成図であ
る。FIG. 4 is a schematic overall configuration diagram of a conventional twin-screw dewatering extruder.
１ シリンダ ２ 脱水スリット ３ 順ネジフライト ５ 切り欠き部 ４ ニーディングディスク ６ スクリュ軸 ７ シールリング部 ８ シールリング ８ｂ 外径 Ｃ１ 供給シリンダ Ｃ２、Ｃ４ 脱水シリンダ Ｃ３、Ｃ５〜Ｃ６、Ｃ９ 中間シリンダ Ｃ８ ベントシリンダ DESCRIPTION OF SYMBOLS 1 Cylinder 2 Dehydration slit 3 Forward screw flight 5 Notch part 4 Kneading disk 6 Screw shaft 7 Seal ring part 8 Seal ring 8b Outer diameter C1 Supply cylinder C2, C4 Dehydration cylinder C3, C5-C6, C9 Intermediate cylinder C8 Vent cylinder
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.7 識別記号 ＦＩ テーマコート゛(参考） // Ｂ２９Ｋ 21:00 Ｂ２９Ｋ 25:00 25:00 Ｂ０１Ｄ 29/30 ５０１ ──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. 7 Identification symbol FI Theme coat ゛ (Reference) // B29K 21:00 B29K 25:00 25:00 B01D 29/30 501
Claims (2)
クリュ軸（６）を用いて原料を輸送し、スクリュ軸
（６）に設けたシールリング部（７）により原料中から
溶液を絞り出し、該絞りだされた溶液を、シールリング
部（７）より上流側に設けた脱水シリンダ（Ｃ2，Ｃ4）
の脱水スリット（２）を介して排出するようにした脱溶
液方法において、脱水シリンダ（Ｃ2，Ｃ4）に対応する
位置からシールリング部（７）のシールリング（８）上
流位置までのスクリュ軸（６）上に配置された順ネジフ
ライト（３）に、切り欠き部（５）を設け、該切り欠き
部（５）を介して前記溶液を脱水スリット（２）に移動
して抜きとることを特徴とする二軸脱水押出機による脱
溶液方法。1. A material is transported using a pair of screw shafts (6) provided in a cylinder (1), and a solution is squeezed out of the material by a seal ring (7) provided on the screw shaft (6). The dewatered cylinders (C 2 , C 4 ) provided on the upstream side of the seal ring (7) with the squeezed solution.
In the method for removing solution through the dewatering slit (2), the screw from the position corresponding to the dewatering cylinder (C 2 , C 4 ) to the upstream of the seal ring (8) of the seal ring portion (7). A notch (5) is provided in the forward screw flight (3) arranged on the shaft (6), and the solution is moved to the dewatering slit (2) through the notch (5) to be extracted. A solution removing method using a twin-screw dewatering extruder.
クリュ軸（６）を用いて原料を輸送し、スクリュ軸
（６）に設けたシールリング部（７）により原料中から
溶液を絞り出し、該絞りだされた溶液を、シールリング
部（７）より上流側の脱水シリンダ（Ｃ2，Ｃ4）に設け
た脱水スリット（２）を介して排出するようにした二軸
脱水押出機において、脱水シリンダ（Ｃ2，Ｃ4）に対応
する位置からシールリング部（７）のシールリング
（８）上流位置までのスクリュ軸（６）上に配置された
順ネジフライト（３）に、切り欠き部（５）を設けたこ
とを特徴とする二軸脱水押出機。2. A material is transported using a pair of screw shafts (6) provided in a cylinder (1), and a solution is squeezed out of the material by a seal ring portion (7) provided on the screw shaft (6). the the narrowed Ridasa solution, the sealing ring section (7) from the upstream side of the dewatering cylinder (C 2, C 4) to provided dehydrated slits (2) biaxial dewatering extruder to discharge through the A forward thread flight (3) arranged on the screw shaft (6) from a position corresponding to the dewatering cylinders (C 2 , C 4 ) to a position upstream of the seal ring (8) of the seal ring portion (7) is cut. A twin-screw dewatering extruder comprising a notch (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000143600A JP4279976B2 (en) | 2000-05-16 | 2000-05-16 | Desolvation method by twin screw dewatering extruder and twin screw dewatering extruder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000143600A JP4279976B2 (en) | 2000-05-16 | 2000-05-16 | Desolvation method by twin screw dewatering extruder and twin screw dewatering extruder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2001322155A true JP2001322155A (en) | 2001-11-20 |
| JP4279976B2 JP4279976B2 (en) | 2009-06-17 |
Family
ID=18650394
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000143600A Expired - Lifetime JP4279976B2 (en) | 2000-05-16 | 2000-05-16 | Desolvation method by twin screw dewatering extruder and twin screw dewatering extruder |
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| Country | Link |
|---|---|
| JP (1) | JP4279976B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011021273A1 (en) * | 2009-08-18 | 2011-02-24 | トヨタ自動車株式会社 | Seal ring |
| WO2013129608A1 (en) * | 2012-03-01 | 2013-09-06 | 株式会社日本製鋼所 | Screw pair and co-rotating intermeshing twin-screw extruder provided with screw pair |
| WO2020189500A1 (en) * | 2019-03-20 | 2020-09-24 | 三菱ケミカル株式会社 | Biaxial extruder |
-
2000
- 2000-05-16 JP JP2000143600A patent/JP4279976B2/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011021273A1 (en) * | 2009-08-18 | 2011-02-24 | トヨタ自動車株式会社 | Seal ring |
| JP5333591B2 (en) * | 2009-08-18 | 2013-11-06 | トヨタ自動車株式会社 | Seal ring |
| US9028130B2 (en) | 2009-08-18 | 2015-05-12 | Toyota Jidosha Kabushiki Kaisha | Seal ring |
| WO2013129608A1 (en) * | 2012-03-01 | 2013-09-06 | 株式会社日本製鋼所 | Screw pair and co-rotating intermeshing twin-screw extruder provided with screw pair |
| JP2013180483A (en) * | 2012-03-01 | 2013-09-12 | Japan Steel Works Ltd:The | Screw pair and co-rotating intermeshing twin-screw extruder provided with screw pair |
| KR101528717B1 (en) * | 2012-03-01 | 2015-06-16 | 더 재팬 스틸 워크스 엘티디 | Screw pair and co-rotating intermeshing twin-screw extruder provided with screw pair |
| US9498899B2 (en) | 2012-03-01 | 2016-11-22 | The Japan Steel Works, Ltd. | Screw pair and co-rotating intermeshing twin-screw extruder provided with screw pair |
| WO2020189500A1 (en) * | 2019-03-20 | 2020-09-24 | 三菱ケミカル株式会社 | Biaxial extruder |
| CN113348063A (en) * | 2019-03-20 | 2021-09-03 | 三菱化学株式会社 | Double-shaft extruder |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4279976B2 (en) | 2009-06-17 |
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