JPH0995888A - Screen device for production of paper - Google Patents
Screen device for production of paperInfo
- Publication number
- JPH0995888A JPH0995888A JP25488295A JP25488295A JPH0995888A JP H0995888 A JPH0995888 A JP H0995888A JP 25488295 A JP25488295 A JP 25488295A JP 25488295 A JP25488295 A JP 25488295A JP H0995888 A JPH0995888 A JP H0995888A
- Authority
- JP
- Japan
- Prior art keywords
- stirring member
- cylindrical
- screen
- tank
- papermaking
- 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
Landscapes
- Paper (AREA)
- Combined Means For Separation Of Solids (AREA)
Abstract
Description
【０００１】本発明は、製紙用スクリーン装置に係り、
特に、撹拌部材の変形を防止した製紙用スクリーン装置
に関する。The present invention relates to a papermaking screen device,
In particular, it relates to a papermaking screen device in which the deformation of the stirring member is prevented.
【０００２】[0002]
【従来の技術】従来、製紙用スクリーン装置において
は、製紙原料を貯留する槽と、この槽に固定された円筒
形状のスクリーンと、この円筒形状のスクリーンの周囲
に回転自在に設けられた撹拌部材（例えば、特公昭５９
−１８３８号公報に記載された羽根12参照）を有してい
る。2. Description of the Related Art Conventionally, in a papermaking screen device, a tank for storing papermaking raw materials, a cylindrical screen fixed to the tank, and a stirring member rotatably provided around the cylindrical screen. (For example, Japanese Patent Publication Sho 59
-1838).
【０００３】[0003]
【発明が解決しようとする課題】しかしながら、従来の
ものにおいては、撹拌部材の形状が、例えば、特公昭５
９−１８３８号公報に記載されているように、回転子
（11）からふるい部片（スクリーン）（６）の外周に接
近する羽根（12）を垂設し、該羽根（12）は長手形状で
４枚となっており、製紙原料中の異物が羽根（12）に絡
みやすく、スクリーンの精選効率を低下させ、また、羽
根（12）の回転に伴って回転子（11）に遠い側の羽根
（12）は外方へと拡がりって変形し易く、ふるい部片
（スクリーン）（６）との間隙が回転子（11）に近い側
の羽根（12）と回転子（11）に遠い側の羽根（12）とで
は、不均一となり、スクリーンの精選効率を低下させる
という問題点があった。However, in the conventional one, the shape of the stirring member is, for example, Japanese Patent Publication No.
As described in Japanese Patent Application Laid-Open No. 9-1838, a blade (12) approaching the outer periphery of a sieving piece (screen) (6) is vertically provided from a rotor (11), and the blade (12) has a longitudinal shape. There are 4 sheets, and foreign matter in the papermaking material is easily entangled in the blades (12), which reduces the screening efficiency of the screen. Also, as the blades (12) rotate, the foreign matter in the side farther from the rotor (11) The blade (12) expands outward and is easily deformed, and the gap between the blade (12) and the sieve piece (screen) (6) is far from the blade (12) and the rotor (11) on the side closer to the rotor (11). There is a problem in that it becomes non-uniform with the side blades (12), and the efficiency of screen screening is reduced.
【０００４】本発明は、上記欠点を解消するようにした
製紙用スクリーン装置を提供することを目的としてい
る。SUMMARY OF THE INVENTION It is an object of the present invention to provide a papermaking screen device which eliminates the above drawbacks.
【０００５】[0005]
【課題を解決するための手段】上記目的を達成するため
に、本発明の製紙用スクリーン装置は、製紙原料の入口
部と出口部を有し、該製紙原料を貯留する槽と、この槽
内に設けられ、前記槽内を一次室と二次室に区画する円
筒形状のスクリーンと、前記一次室内であって、前記円
筒形状のスクリーンに近接して対向すると共に前記円筒
形状のスクリーンの外側に設けられ回転軸を有する撹拌
部材と、この撹拌部材の回転軸を駆動させるモータと、
前記撹拌部材は円形状の頂部を有し、前記回転軸の軸心
方向であって、前記頂部より離れるに従って先細りとな
る弧状の先細り側面部を間隔をおいて複数設け、前記先
細り側面部を前記円筒形状のスクリーンに対向させると
共に前記円筒形状のスクリーンに対向する前記先細り側
面部の面に凸部を設けたものである。In order to achieve the above object, a papermaking screen device of the present invention has a tank for storing a papermaking raw material, which has an inlet portion and an outlet portion for the papermaking raw material, and an inside of the tank. And a cylindrical screen partitioning the interior of the tank into a primary chamber and a secondary chamber, and in the primary chamber, facing the cylindrical screen in close proximity and to the outside of the cylindrical screen. A stirring member provided with a rotating shaft, and a motor for driving the rotating shaft of the stirring member,
The stirring member has a circular top portion, is provided in the axial direction of the rotating shaft, and is provided with a plurality of arc-shaped tapered side surface portions which are tapered as the distance from the top portion increases, and the tapered side surface portion is provided. A convex portion is provided on the surface of the tapered side surface portion facing the cylindrical screen and facing the cylindrical screen.
【０００６】また、本発明の製紙用スクリーン装置は、
製紙原料の入口部と出口部を有し、該製紙原料を貯留す
る槽と、この槽内に設けられ、前記槽内を一次室と二次
室に区画する円筒形状のスクリーンと、前記一次室内で
あって、前記円筒形状のスクリーンに近接して対向する
と共に前記円筒形状のスクリーンの外側に設けられ回転
軸を有する円筒形状の撹拌部材と、この円筒形状の撹拌
部材を回転駆動させるモータと、前記円筒形状のスクリ
ーンに対向する前記円筒形状の撹拌部材の円筒側面に凸
部と開口部を設けたものである。Further, the papermaking screen device of the present invention is
A tank having an inlet portion and an outlet portion for the papermaking raw material, which stores the papermaking raw material, a cylindrical screen which is provided in the tank and divides the inside of the tank into a primary chamber and a secondary chamber, and the primary chamber The cylindrical stirring member having a rotating shaft provided on the outside of the cylindrical screen in close proximity to and facing the cylindrical screen, and a motor for rotationally driving the cylindrical stirring member, A convex portion and an opening portion are provided on the cylindrical side surface of the cylindrical stirring member facing the cylindrical screen.
【０００７】撹拌部材の回転軸を垂直方向に配置し、凸
部を前記撹拌部材の回転方向に対して撹拌部材の下方に
従って後退するように階段状に設けたものである。The rotating shaft of the stirring member is arranged in a vertical direction, and the convex portions are provided in a stepwise shape so as to recede in accordance with the lower direction of the stirring member with respect to the rotating direction of the stirring member.
【０００８】[0008]
【実施例】本発明の一実施例の製紙用スクリーン装置に
ついて図面を参照して説明する。DESCRIPTION OF THE PREFERRED EMBODIMENTS A papermaking screen device according to an embodiment of the present invention will be described with reference to the drawings.
【０００９】図１乃至図４において、１は、製紙用スク
リーン装置で、製紙用スクリーン装置１は、例えば、製
紙原料をスクリーン２の外側から内側に向かって流入さ
せて、精選する所謂セントリピータル式スクリーン（イ
ンワードフロ−型スクリーン）と称されるもので、製紙
原料から、ほこり、異物を除去するための円筒形状のス
クリーン２が槽３内に設けられている。1 to 4, reference numeral 1 denotes a papermaking screen device. The papermaking screen device 1 is, for example, a so-called cent repeater for performing selective selection by inflowing a papermaking raw material from the outside of the screen 2 to the inside thereof. This is called a type screen (inward flow type screen), and a cylindrical screen 2 for removing dust and foreign matters from a papermaking raw material is provided in a tank 3.
【００１０】この槽３は、製紙原料を貯留するところ
で、製紙原料の入口部４、異物排出口５及び出口部６を
有している。The tank 3 has an inlet portion 4 for the papermaking raw material, a foreign matter discharge port 5 and an outlet portion 6 where the papermaking raw material is stored.
【００１１】そして、槽３内は、円筒形状のスクリーン
２によって、一次室７と二次室８に区画され、一次室７
は入口部４及び異物排出口５に臨んでいる。二次室８は
出口部６に臨んでいる。そして、入口部４は原料供給管
（図示せず）、異物排出口５は異物排出管（図示せず）
に、出口部６は原料排出管（図示せず）にそれぞれ接続
されている。The interior of the tank 3 is divided into a primary chamber 7 and a secondary chamber 8 by the screen 2 having a cylindrical shape.
Faces the inlet portion 4 and the foreign matter discharge port 5. The secondary chamber 8 faces the outlet section 6. The inlet 4 is a raw material supply pipe (not shown), and the foreign matter discharge port 5 is a foreign matter discharge pipe (not shown).
In addition, the outlet portions 6 are connected to raw material discharge pipes (not shown), respectively.
【００１２】スクリーン２は円筒形状で、槽３内に固定
されている。この円筒形状のスクリーン２は、一方の端
部21は閉塞され、該端部21に対向する他方の端部は開放
され、側面部はスリット、丸孔等で形成された間隙部22
が設けられ、該間隙部22により製紙原料から、ほこり、
異物を分離している。The screen 2 has a cylindrical shape and is fixed in the tank 3. In this cylindrical screen 2, one end 21 is closed, the other end facing the end 21 is open, and the side face is a gap 22 formed by a slit, a round hole or the like.
Is provided, and from the gap portion 22, from the papermaking raw material, dust,
Foreign matter is separated.
【００１３】９は、撹拌部材で、撹拌部材９は、一次室
７内に配置され、円筒形状のスクリーン２に近接して対
向し、しかも、円筒形状のスクリーン２の外側に設けら
れ、回転軸91を有している（図１参照）。Reference numeral 9 denotes a stirring member, which is disposed in the primary chamber 7 and faces the cylindrical screen 2 in close proximity thereto, and is provided on the outer side of the cylindrical screen 2 and has a rotating shaft. 91 (see FIG. 1).
【００１４】この撹拌部材９は図２乃至図４に示すよう
に、円形状の頂部92を有し、回転軸91の軸心方向であっ
て、頂部91より離れるに従って先細りとなる弧状の先細
り側面部93を間隔をおいて複数（本実施例では、４個）
設け、先細り側面部93を円筒形状のスクリーン２に間隔
Ｔ（間隔Ｔは、例えば、 mm〜 mm）を設けて対向して
いる。そして、複数の弧状の先細り側面部93は、頂部91
と同心となっている。なお、本実施例では、頂部91と先
細り側面部93は溶接等により固着させているが、頂部91
と先細り側面部93を一体的に形成しても良い。As shown in FIGS. 2 to 4, the stirring member 9 has a circular top portion 92, is in the axial direction of the rotary shaft 91, and is an arc-shaped tapered side surface that tapers away from the top portion 91. A plurality of parts 93 are arranged at intervals (four in this embodiment).
The tapered side surfaces 93 are opposed to each other with a space T (space T is, for example, mm to mm) provided on the cylindrical screen 2. Then, the plurality of arc-shaped tapered side surface portions 93 are formed on the top portion 91.
Is concentric with. In this embodiment, the top portion 91 and the tapered side surface portion 93 are fixed to each other by welding or the like.
The tapered side surface portion 93 may be integrally formed.
【００１５】また、円筒形状のスクリーン２に対向する
先細り側面部93の面に凸部94を撹拌部材９の回転方向Ｂ
に対して撹拌部材９の下方に従って後退するように階段
状に複数（例えば、５個）設けて、抵抗を少なくして製
紙原料を離解するようにしている。A convex portion 94 is provided on the surface of the tapered side surface portion 93 facing the cylindrical screen 2 in the rotating direction B of the stirring member 9.
On the other hand, a plurality of (for example, five) steps are provided so as to retreat according to the lower side of the stirring member 9 to reduce the resistance and disintegrate the papermaking raw material.
【００１６】なお、本実施例では、凸部94を階段状に複
数（例えば、５個）設けたが、５個の凸部94を接続して
１個の凸部を形成しても良い。In the present embodiment, the plurality of convex portions 94 (for example, five convex portions 94) are provided in a staircase shape, but five convex portions 94 may be connected to form one convex portion.
【００１７】また、本実施例では、撹拌部材９の回転軸
91は、図示しないモータによりベルト96を介して駆動し
ているが、ベルト96を介せず直接図示しないモータによ
り駆動させても良い。Further, in this embodiment, the rotating shaft of the stirring member 9 is
Although 91 is driven by a motor (not shown) via the belt 96, it may be directly driven by a motor (not shown) without the belt 96.
【００１８】従って、図１乃至図４記載の製紙用スクリ
ーン装置１においては、ポンプ（図示せず）により製紙
原料が原料供給管（図示せず）、入口部４を介して一次
室７内に導入されると、先細り側面部93と先細り側面部
93との間（図１、図２、図４の符号Ｘ）から製紙原料が
流れ込み、撹拌部材９の凸部94により離解されて円筒形
状のスクリーン２によって精選される。Therefore, in the papermaking screen device 1 shown in FIGS. 1 to 4, the papermaking raw material is fed into the primary chamber 7 through the raw material supply pipe (not shown) and the inlet portion 4 by the pump (not shown). Once introduced, the tapered flanks 93 and tapered flanks
The papermaking raw material flows in from between 93 and (reference numeral X in FIGS. 1, 2, and 4), is disaggregated by the convex portions 94 of the stirring member 9, and is carefully selected by the cylindrical screen 2.
【００１９】離解された製紙原料はスクリーン２を通過
し二次室８内に導かれ、出口部６、原料排出管（図示せ
ず）を介して槽３外へ導かれる。The disintegrated papermaking raw material passes through the screen 2 and is guided into the secondary chamber 8, and is guided to the outside of the tank 3 through the outlet 6 and the raw material discharge pipe (not shown).
【００２０】その結果、本実施例によれば、弧状の先細
り側面部93は、頂部91に近づくにつれて拡大し、剛性を
有するため、回転に伴う弧状の先細り側面部93の変形が
少なく、従来のように、回転に伴って長手形状の撹拌部
材が変形し該撹拌部材とスクリーンとの間隔が不均一に
なることを防止することができ、しかも、先細り側面部
93の形状は弧状となっているため、抵抗も少なく、精選
効率を高めることができる。As a result, according to the present embodiment, the arcuate tapered side surface portion 93 expands as it approaches the apex 91 and has rigidity, so that the arcuate tapered side surface portion 93 is less likely to be deformed due to the rotation, and the As described above, it is possible to prevent the longitudinal stirring member from being deformed due to the rotation so that the interval between the stirring member and the screen becomes uneven, and moreover, the tapered side surface portion
Since 93 has an arc shape, it has less resistance and can improve the selection efficiency.
【００２１】そして、スクリーン２を通過できない一次
室７内の製紙原料は、一次室７に連通する異物排出口５
を介して異物排出管（図示せず）に設けた開閉弁（図示
せず）を開閉することにより、槽３外へ適宜導かれる。The papermaking raw material in the primary chamber 7 that cannot pass through the screen 2 is a foreign matter discharge port 5 communicating with the primary chamber 7.
By opening and closing an opening / closing valve (not shown) provided in the foreign matter discharge pipe (not shown) via the via, it is appropriately guided to the outside of the tank 3.
【００２２】なお、弧状の先細り側面部93の製紙原料に
向かう側の辺Ｃ及び他の辺Ｄは、図４に示すように、撹
拌部材９の回転方向Ｂに対して撹拌部材９の下方に従っ
て後退するように傾斜しているが、他の辺Ｄは、図４に
示すものに限らず、図５に示すように垂直であっても、
また、図６に示すように、逆に、撹拌部材９の回転方向
Ｂに対して撹拌部材９の下方に従って前進するように傾
斜しても良い。As shown in FIG. 4, the side C and the other side D of the arc-shaped tapered side surface portion 93 facing the papermaking raw material follow the lower direction of the stirring member 9 with respect to the rotating direction B of the stirring member 9. Although inclined so as to recede, the other side D is not limited to that shown in FIG. 4, and even if it is vertical as shown in FIG.
Further, as shown in FIG. 6, conversely, it may be inclined so as to advance with respect to the rotation direction B of the stirring member 9 as it goes downward.
【００２３】上述の撹拌部材９は、頂部92より離れるに
従って先細りとなる弧状の先細り側面部93を間隔をおい
て複数設けたが、撹拌部材９は、これに限らず、図７乃
至図９に記載の撹拌部材９でも良い。The stirring member 9 described above is provided with a plurality of arc-shaped tapered side surface portions 93 which are tapered as the distance from the top portion 92 increases, but the stirring member 9 is not limited to this, and is not limited to this. The stirring member 9 described may be used.
【００２４】すなわち、撹拌部材９は、円筒形状を有
し、一次室７内に配置されている。そして、撹拌部材９
は、円筒形状のスクリーン２に近接して対向すると共に
円筒形状のスクリーン２の外側に設けられ回転軸91を有
している。That is, the stirring member 9 has a cylindrical shape and is arranged in the primary chamber 7. And the stirring member 9
Has a rotating shaft 91 which is provided on the outer side of the cylindrical screen 2 while being close to and facing the cylindrical screen 2.
【００２５】また、円筒形状のスクリーン２に対向する
円筒形状の撹拌部材９の円筒側面に凸部94と開口部95を
複数設けている。A plurality of projections 94 and openings 95 are provided on the cylindrical side surface of the cylindrical stirring member 9 that faces the cylindrical screen 2.
【００２６】凸部94は、前述の実施例と同様に、凸部94
を撹拌部材９の回転方向Ｂに対して撹拌部材９の下方に
従って後退するように階段状に複数（例えば、５個）設
けて、抵抗を少なくして製紙原料を離解するようにして
いる。The convex portion 94 is the same as the above-mentioned embodiment.
Are provided in a stepwise manner (for example, five) so as to retreat in accordance with the lower direction of the stirring member 9 with respect to the rotation direction B of the stirring member 9, and the resistance is reduced to disintegrate the papermaking raw material.
【００２７】なお、本実施例では、凸部94を階段状に複
数（例えば、５個）設けたが、５個の凸部94を接続して
１個の凸部を形成しても良い。In this embodiment, the plurality of convex portions 94 (for example, five) are provided in a stepwise manner, but five convex portions 94 may be connected to form one convex portion.
【００２８】従って、この円筒形状の撹拌部材９を組み
込んだ製紙用スクリーン装置（図１記載の製紙用スクリ
ーン装置１の撹拌部材９を図７乃至図９記載の撹拌部材
９に入れ替えた製紙用スクリーン装置）においては、ポ
ンプ（図示せず）により製紙原料が原料供給管（図示せ
ず）、入口部４を介して一次室７内に導入されると、円
筒形状の撹拌部材９の円筒側面に設けた開口部95から製
紙原料が流れ込み、凸部94により離解されて円筒形状の
スクリーン２によって精選される。Therefore, a papermaking screen device incorporating the cylindrical stirring member 9 (a papermaking screen in which the stirring member 9 of the papermaking screen device 1 shown in FIG. 1 is replaced with the stirring member 9 shown in FIGS. 7 to 9) In the apparatus), when a papermaking raw material is introduced into the primary chamber 7 through a raw material supply pipe (not shown) and the inlet portion 4 by a pump (not shown), the cylindrical side surface of the cylindrical stirring member 9 is introduced. The raw material for papermaking flows in through the opening 95 provided, is disaggregated by the convex portion 94, and is carefully selected by the cylindrical screen 2.
【００２９】離解された製紙原料はスクリーン２を通過
し二次室８内に導かれ、出口部６、原料排出管（図示せ
ず）を介して槽３外へ導かれる。The disintegrated papermaking raw material passes through the screen 2 and is guided into the secondary chamber 8, and is guided to the outside of the tank 3 through the outlet 6 and the raw material discharge pipe (not shown).
【００３０】その結果、本実施例によれば、回転する撹
拌部材９は円筒形状で、剛性を有するため、回転に伴う
撹拌部材の変形が少なく、従来のように、回転に伴って
長手形状の撹拌部材が変形し該撹拌部材とスクリーンと
の間隔が不均一になることを防止することができ、しか
も、回転する撹拌部材９は円筒形状であるため、抵抗も
少なく従来のように異物が撹拌部材に絡むことも防止で
き、精選効率を高めることができる。As a result, according to the present embodiment, since the rotating stirring member 9 has a cylindrical shape and has rigidity, the stirring member is less deformed by the rotation, and has a longer shape with the rotation as in the conventional case. It is possible to prevent the stirring member from being deformed so that the interval between the stirring member and the screen is not uniform, and moreover, since the rotating stirring member 9 has a cylindrical shape, the resistance is small and the foreign matter is stirred as in the conventional case. Entanglement with the members can also be prevented, and the selection efficiency can be improved.
【００３１】[0031]
【発明の効果】本発明の製紙用スクリーン装置は、製紙
原料の入口部と出口部を有し、該製紙原料を貯留する槽
と、この槽内に設けられ、前記槽内を一次室と二次室に
区画する円筒形状のスクリーンと、前記一次室内であっ
て、前記円筒形状のスクリーンに近接して対向すると共
に前記円筒形状のスクリーンの外側に設けられ回転軸を
有する撹拌部材と、この撹拌部材の回転軸を駆動させる
モータと、前記撹拌部材は円形状の頂部を有し、前記回
転軸の軸心方向であって、前記頂部より離れるに従って
先細りとなる弧状の先細り側面部を間隔をおいて複数設
け、前記先細り側面部を前記円筒形状のスクリーンに対
向させると共に前記円筒形状のスクリーンに対向する前
記先細り側面部の面に凸部を設けたから、先細り側面部
と先細り側面部との間から製紙原料が流れ込み、凸部に
より離解されて円筒形状のスクリーンによって精選され
る。The papermaking screen device of the present invention has a tank for storing the papermaking raw material, which has an inlet portion and an outlet portion for the papermaking raw material, and a tank provided inside the tank for providing a primary chamber and a secondary chamber. A cylindrical screen that divides into a next chamber, a stirring member that is provided inside the primary chamber and closely faces the cylindrical screen, and that is provided outside the cylindrical screen and has a rotating shaft, and this stirring. The motor for driving the rotary shaft of the member and the stirring member have a circular top portion, and the arcuate tapered side surface portions are tapered in the axial direction of the rotary shaft and taper away from the top portion. A plurality is provided, and since the convex side surface portion is provided with a convex portion on the surface of the tapered side surface portion facing the cylindrical screen while facing the tapered screen portion, the tapered side surface portion and the tapered side surface portion are provided. Papermaking material flows from between, are curated by the screen of the macerating has been cylindrical shape by the convex portion.
【００３２】また、弧状の先細り側面部は、頂部に近づ
くにつれて拡大し、剛性を有するため、回転に伴う弧状
の先細り側面部の変形が少なく、従来のように、回転に
伴って長手形状の撹拌部材が変形し該撹拌部材とスクリ
ーンとの間隔が不均一になることを防止することがで
き、しかも、先細り側面部の形状は弧状となっているた
め、抵抗も少なく、精選効率を高めることができる。Further, since the arcuate tapered side surface portion expands toward the top and has rigidity, deformation of the arcuate tapered side surface portion due to rotation is small, and as in the conventional case, the agitation of a longitudinal shape is accompanied by rotation. It is possible to prevent the member from being deformed and the interval between the stirring member and the screen to be non-uniform, and moreover, since the tapered side surface portion has an arc shape, the resistance is small and the selection efficiency can be improved. it can.
【００３３】また、本発明の製紙用スクリーン装置は、
製紙原料の入口部と出口部を有し、該製紙原料を貯留す
る槽と、この槽内に設けられ、前記槽内を一次室と二次
室に区画する円筒形状のスクリーンと、前記一次室内で
あって、前記円筒形状のスクリーンに近接して対向する
と共に前記円筒形状のスクリーンの外側に設けられ回転
軸を有する円筒形状の撹拌部材と、この円筒形状の撹拌
部材を回転駆動させるモータと、前記円筒形状のスクリ
ーンに対向する前記円筒形状の撹拌部材の円筒側面に凸
部と開口部を設けたから、円筒形状の撹拌部材の円筒側
面に設けた開口部から製紙原料が流れ込み、凸部により
離解されて円筒形状のスクリーンによって精選される。Further, the papermaking screen device of the present invention is
A tank having an inlet portion and an outlet portion for the papermaking raw material, which stores the papermaking raw material, a cylindrical screen which is provided in the tank and divides the inside of the tank into a primary chamber and a secondary chamber, and the primary chamber The cylindrical stirring member having a rotating shaft provided on the outside of the cylindrical screen in close proximity to and facing the cylindrical screen, and a motor for rotationally driving the cylindrical stirring member, Since the convex portion and the opening are provided on the cylindrical side surface of the cylindrical stirring member facing the cylindrical screen, the papermaking raw material flows from the opening provided on the cylindrical side surface of the cylindrical stirring member and disaggregated by the convex portion. And screened with a cylindrical screen.
【００３４】また、回転する撹拌部材は円筒形状で、剛
性を有するため、回転に伴う撹拌部材の変形が少なく、
従来のように、回転に伴って長手形状の撹拌部材が変形
し該撹拌部材とスクリーンとの間隔が不均一になること
を防止することができ、しかも、回転する撹拌部材は円
筒形状であるため、抵抗も少なく従来のように異物が撹
拌部材に絡むことも防止でき、精選効率を高めることが
できる。Further, since the rotating stirring member has a cylindrical shape and has rigidity, deformation of the stirring member due to rotation is small,
It is possible to prevent the longitudinal stirring member from being deformed due to the rotation and the gap between the stirring member and the screen being uneven as in the conventional case, and moreover, since the rotating stirring member has a cylindrical shape. In addition, it is possible to prevent foreign matter from being entangled with the stirring member as in the conventional case with less resistance, and improve the selection efficiency.
【００３５】また、撹拌部材の回転軸を垂直方向に配置
し、凸部を前記撹拌部材の回転方向に対して撹拌部材の
下方に従って後退するように階段状に設けたから、抵抗
を少なくして製紙原料を離解することができる。Further, since the rotating shaft of the stirring member is arranged in the vertical direction and the convex portions are provided in a stepwise manner so as to recede with the lower direction of the stirring member with respect to the rotating direction of the stirring member, the resistance is reduced and the papermaking is performed. The raw material can be disaggregated.
【図１】図１は、本発明の一実施例の製紙用スクリーン
装置の概略的断面図である。FIG. 1 is a schematic sectional view of a papermaking screen device according to an embodiment of the present invention.
【図２】図２は、図１の撹拌部材を取り出し、一部を拡
大して示す概略的断面図である。FIG. 2 is a schematic sectional view showing the stirring member of FIG. 1 taken out and partially enlarged.
【図３】図３は、図２のＡ−Ａ線による概略的断面図で
ある。3 is a schematic cross-sectional view taken along the line AA of FIG.
【図４】図４は、図２の撹拌部材の側面を展開して示す
概略的展開図である。FIG. 4 is a schematic development view showing a side surface of the stirring member of FIG. 2 in an expanded manner.
【図５】図５は、図４の他の実施例を示す概略的展開図
である。5 is a schematic development view showing another embodiment of FIG. 4. FIG.
【図６】図６は、図５の他の実施例を示す概略的展開図
である。FIG. 6 is a schematic development view showing another embodiment of FIG.
【図７】図７は、図１の撹拌部材の他の実施例を示す概
略的側面図である。FIG. 7 is a schematic side view showing another embodiment of the stirring member of FIG. 1.
【図８】図８は、図７の撹拌部材の側面を展開して示す
概略的展開図である。FIG. 8 is a schematic development view showing the side surface of the stirring member of FIG. 7 in an expanded manner.
【図９】図９は、図８のＥ−Ｅ線による概略的断面図で
ある。9 is a schematic cross-sectional view taken along the line EE of FIG.
１ 製紙用スクリーン装置 ２ 円筒形状のスクリーン ３ 槽 ４ 入口部 ６ 出口部 ９ 撹拌部材 92 頂部 93 先細り側面部 94 凸部 1 Papermaking Screen Device 2 Cylindrical Screen 3 Tank 4 Inlet 6 Outlet 9 Stirrer 92 Top 93 Tapered Side 94 Convex
Claims (3)
原料を貯留する槽と、 この槽内に設けられ、前記槽内を一次室と二次室に区画
する円筒形状のスクリーンと、 前記一次室内であって、前記円筒形状のスクリーンに近
接して対向すると共に前記円筒形状のスクリーンの外側
に設けられ回転軸を有する撹拌部材と、 この撹拌部材の回転軸を駆動させるモータと、 前記撹拌部材は円形状の頂部を有し、前記回転軸の軸心
方向であって、前記頂部より離れるに従って先細りとな
る弧状の先細り側面部を間隔をおいて複数設け、前記先
細り側面部を前記円筒形状のスクリーンに対向させると
共に前記円筒形状のスクリーンに対向する前記先細り側
面部の面に凸部を設けたことを特徴とする製紙用スクリ
ーン装置。1. A tank having an inlet and an outlet for a papermaking raw material, the tank storing the papermaking raw material, and a cylindrical screen provided in the tank and dividing the interior of the tank into a primary chamber and a secondary chamber. A stirring member having a rotating shaft provided inside the primary chamber, close to and facing the cylindrical screen, and provided outside the cylindrical screen; and a motor for driving the rotating shaft of the stirring member. The stirring member has a circular top portion, is in the axial direction of the rotating shaft, and is provided with a plurality of arc-shaped tapered side surface portions that become tapered as the distance from the top portion increases, and the tapered side surface portion is formed. A papermaking screen device, wherein a convex portion is provided on a surface of the tapered side surface portion facing the cylindrical screen and facing the cylindrical screen.
原料を貯留する槽と、 この槽内に設けられ、前記槽内を一次室と二次室に区画
する円筒形状のスクリーンと、 前記一次室内であって、前記円筒形状のスクリーンに近
接して対向すると共に前記円筒形状のスクリーンの外側
に設けられ回転軸を有する円筒形状の撹拌部材と、 この円筒形状の撹拌部材を回転駆動させるモータと、 前記円筒形状のスクリーンに対向する前記円筒形状の撹
拌部材の円筒側面に凸部と開口部を設けたことを特徴と
する製紙用スクリーン装置。2. A tank having a papermaking raw material inlet and an outlet for storing the papermaking raw material, and a cylindrical screen provided in the tank and dividing the tank into a primary chamber and a secondary chamber. And a cylindrical stirring member having a rotation axis, which is provided outside the cylindrical screen in the primary chamber so as to closely face and face the cylindrical screen, and to rotate the cylindrical stirring member. A papermaking screen device comprising a driving motor and a convex portion and an opening portion provided on a cylindrical side surface of the cylindrical stirring member facing the cylindrical screen.
部を前記撹拌部材の回転方向に対して撹拌部材の下方に
従って後退するように階段状に設けた請求項１または請
求項２に記載の製紙用スクリーン装置。3. The stirrer according to claim 1, wherein the rotating shaft of the stirring member is arranged in a vertical direction, and the convex portion is provided stepwise so as to recede in accordance with the lower side of the stirring member with respect to the rotating direction of the stirring member. The screen device for papermaking according to 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25488295A JPH0995888A (en) | 1995-10-02 | 1995-10-02 | Screen device for production of paper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25488295A JPH0995888A (en) | 1995-10-02 | 1995-10-02 | Screen device for production of paper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0995888A true JPH0995888A (en) | 1997-04-08 |
Family
ID=17271151
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP25488295A Pending JPH0995888A (en) | 1995-10-02 | 1995-10-02 | Screen device for production of paper |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0995888A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007224491A (en) * | 2006-02-24 | 2007-09-06 | Voith Patent Gmbh | Device for cleaning suspension, preferably fibrous suspension for paper production |
-
1995
- 1995-10-02 JP JP25488295A patent/JPH0995888A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007224491A (en) * | 2006-02-24 | 2007-09-06 | Voith Patent Gmbh | Device for cleaning suspension, preferably fibrous suspension for paper production |
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