JP3190278B2 - Screen device - Google Patents
Screen deviceInfo
- Publication number
- JP3190278B2 JP3190278B2 JP02351297A JP2351297A JP3190278B2 JP 3190278 B2 JP3190278 B2 JP 3190278B2 JP 02351297 A JP02351297 A JP 02351297A JP 2351297 A JP2351297 A JP 2351297A JP 3190278 B2 JP3190278 B2 JP 3190278B2
- Authority
- JP
- Japan
- Prior art keywords
- raw material
- chamber
- papermaking
- papermaking raw
- tank
- 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 - Fee Related
Links
Landscapes
- Paper (AREA)
Description
【0001】本発明は、パルプ、古紙等の製紙原料か
ら、石、砂、金属片、樹脂等の異物を除去するスクリ−
ン装置に係り、特に、製紙原料の未溶解片をより離解さ
せて歩留りを良好とする(リゼクト率の低減)ことがで
きるスクリ−ン装置に関する。[0001] The present invention relates to a screen for removing foreign substances such as stones, sand, metal fragments and resins from papermaking raw materials such as pulp and waste paper.
More particularly, the present invention relates to a screen device capable of further disintegrating undissolved pieces of papermaking raw material to improve the yield (reduce the reject rate).
【0002】[0002]
【従来の技術】従来、攪拌部材をスクリ−ンの外側で攪
拌し、製紙原料をスクリ−ンの外側から内側に向かって
流れるタイプのスクリ−ン装置がある(例えば、実公昭
54−30403 号公報の第1図参照)。2. Description of the Related Art Conventionally, there is a screen device of a type in which a stirring member is stirred outside a screen and a papermaking material flows from the outside to the inside of the screen (for example, Koki Shoji).
See FIG. 1 of JP-A-54-30403).
【0003】このスクリ−ン装置にあっては、略円筒形
状のスクリ−ンはシャフトを内蔵した支持筒(センタ−
サポ−ト)に支持され、シャフトの先端は支持筒の先端
部を貫いて軸受を介して設けられている。そして、スク
リ−ンの外側で製紙原料を攪拌する攪拌部材(アジテ−
タ)がシャフトの先端に取り付けられている。In this screen device, a screen having a substantially cylindrical shape is provided with a support cylinder (center) having a built-in shaft.
The shaft is supported by a support and the tip of the shaft is provided through a bearing through the tip of the support cylinder. A stirring member (Agitator) for stirring the papermaking raw material outside the screen.
Is attached to the tip of the shaft.
【0004】そして、スクリ−ンの外側の製紙原料は攪
拌部材(アジテ−タ)で攪拌されながら、精選された製
紙原料は、略円筒形状のスクリ−ンを介して二次室へ、
精選されない製紙原料は、一次室の製紙原料の下流側へ
と導かれ、異物出口を介して外へと排出される。[0004] While the papermaking raw material outside the screen is agitated by an agitator (agitator), the selected papermaking raw material is transferred to a secondary chamber through a substantially cylindrical screen.
The unselected papermaking raw material is guided to the downstream side of the papermaking raw material in the primary chamber, and is discharged to the outside through the foreign matter outlet.
【0005】[0005]
【発明が解決しようとする課題】しかしながら、異物出
口を介して外へと排出される製紙原料の中には、多くの
未溶解片が残存しており、これをそのまま排出してしま
うと、リゼクト率が多くなり、歩留りが悪いという問題
点があった。However, many undissolved pieces remain in the papermaking raw material discharged to the outside via the foreign matter outlet, and if this is discharged as it is, the waste is reduced. There was a problem that the rate increased and the yield was poor.
【0006】本発明は、上記問題点を解消するようにし
たスクリ−ン装置を提供することを目的としている。An object of the present invention is to provide a screen device which solves the above problems.
【0007】[0007]
【課題を解決するための手段】上記目的を達成するため
に、本発明のスクリ−ン装置は、製紙原料を貯留する槽
と、この槽内に設けられ、一次室と二次室とに区画し、
一端を閉塞した閉塞部、他端を開放した開放部、側面を
複数の開口部とした略円筒形状のスクリ−ンと、このス
クリ−ンの外側に位置して前記製紙原料を攪拌する攪拌
部材と、製紙原料入口及び異物出口を前記一次室に臨む
ように、製紙原料出口を前記二次室に臨むように、前記
槽にそれぞれ設け、前記一次室の前記製紙原料の下流側
であって、前記異物出口に至る前の前記製紙原料の流れ
を阻止するように前記槽の中に水を供給する水供給管
と、前記一次室の製紙原料の上流側と下流側とを接続す
る接続通路と、この接続通路内に設けられたポンプとを
備え、前記製紙原料入口から前記一次室内に流入した前
記製紙原料を前記スクリ−ンの外側に位置する前記攪拌
部材により攪拌し、前記製紙原料を前記スクリ−ンの外
側から内側に向かって流入させて精選した前記製紙原料
を前記製紙原料出口へ導き、前記水供給管からの水の供
給により、前記一次室の前記製紙原料の下流側であっ
て、前記異物出口に至る前の前記製紙原料の流れを阻止
して、前記製紙原料の前記槽内での貯留時間を長くし、
前記接続通路の下流側の前記槽に臨む下流側接続通路口
は、前記水供給管の前記槽に臨む水供給管口より前記一
次室の前記製紙原料の上流側に位置し、前記ポンプによ
り下流側の前記製紙原料を上流側へ強制的に戻し、前記
製紙原料の未溶解片を離解させるものである。In order to achieve the above-mentioned object, a screen apparatus of the present invention is provided with a tank for storing papermaking raw materials and a primary chamber and a secondary chamber provided in the tank. And
A substantially cylindrical screen having a closed part with one end closed, an open part with the other end opened, and a plurality of side openings, and a stirring member positioned outside the screen to stir the papermaking raw material A papermaking raw material inlet and a foreign material outlet are provided in the tank so as to face the primary chamber, and a papermaking raw material outlet is provided so as to face the secondary chamber, and the downstream side of the papermaking raw material in the primary chamber, A water supply pipe for supplying water into the tank so as to prevent the flow of the papermaking raw material before reaching the foreign matter outlet
And the upstream and downstream sides of the papermaking raw material in the primary chamber.
Connection passage and a pump provided in the connection passage.
The papermaking raw material that has flowed into the primary chamber from the papermaking raw material inlet is agitated by the agitating member located outside the screen, and the papermaking raw material flows in from the outside to the inside of the screen. leads to the papermaking material outlet of the papermaking raw materials selective Te, by the supply of water from the water supply pipe, a downstream side of the papermaking material in the primary chamber, the papermaking material before reaching the foreign substance outlet Blocking the flow, prolonging the storage time of the papermaking raw material in the tank,
Downstream connection passage opening facing the tank downstream of the connection passage
Is connected to the water supply pipe through the water supply pipe opening facing the tank.
It is located upstream of the papermaking raw material in the next chamber, and is
The papermaking raw material on the downstream side is forcibly returned to the upstream side to disintegrate undissolved pieces of the papermaking raw material.
【0008】[0008]
【0009】また、請求項2記載のスクリ−ン装置は、
製紙原料を貯留する槽と、この槽内に設けられ、第1の
室と第2の室とに区画するフラットなスクリ−ンと、こ
のスクリ−ンの外側に位置した前記第1の室に設けら
れ、前記製紙原料を攪拌するインペラと、前記第2の室
内に設けられ、一次室と二次室とに区画し、側面を複数
の開口部とした略円筒形状のスクリ−ンと、この略円筒
形状のスクリ−ンの外側に位置して前記製紙原料を攪拌
する攪拌部材と、製紙原料入口及び第1の室異物出口を
前記第1の室に臨むように、異物出口を前記一次室に臨
むように、製紙原料出口を前記二次室に臨むように、前
記槽にそれぞれ設け、前記一次室の前記製紙原料の下流
側であって、前記異物出口に至る前の前記製紙原料の流
れを阻止するように前記槽の中に水を供給する水供給管
と、前記第1の室と前記一次室の製紙原料の下流側とを
接続する接続通路と、この接続通路の前記第1の室への
接続口は、前記インペラの略中心を臨むように設けら
れ、前記製紙原料入口から前記第1の室及び前記フラッ
トなスクリ−ンを介して前記一次室内に流入した前記製
紙原料を前記略円筒形状のスクリ−ンの外側に位置する
前記攪拌部材により攪拌し、前記製紙原料を前記略円筒
形状のスクリ−ンの外側から内側に向かって流入させて
精選した前記製紙原料を前記製紙原料出口へ導き、前記
水供給管からの水の供給により、前記一次室の前記製紙
原料の下流側であって、前記異物出口に至る前の前記製
紙原料の流れを阻止して、前記製紙原料の槽内での貯留
時間を長くし、前記接続通路の下流側の前記槽に臨む下
流側接続通路口は、前記水供給管の前記槽に臨む水供給
管口より前記一次室の前記製紙原料の上流側に位置し、
前記接続通路により下流側の製紙原料を前記第1の室へ
強制的に戻し、前記製紙原料の未溶解片を離解させるも
のである。The screen device according to claim 2 is
A tank for storing papermaking raw materials, a flat screen provided in the tank and partitioned into a first chamber and a second chamber, and a first chamber located outside the screen. An impeller provided to agitate the papermaking raw material, a substantially cylindrical screen provided in the second chamber, divided into a primary chamber and a secondary chamber, and having a plurality of openings on a side surface; A stirring member positioned outside the substantially cylindrical screen to stir the papermaking raw material; and a foreign material outlet connected to the primary chamber such that a papermaking raw material inlet and a first foreign material outlet face the first chamber. The papermaking raw material outlet is provided in each of the tanks so as to face the secondary chamber, and the flow of the papermaking raw material before reaching the foreign matter outlet on the downstream side of the papermaking raw material in the primary chamber. Water supply pipe for supplying water into the tank so as to prevent
And the first chamber and the downstream side of the papermaking raw material in the primary chamber.
A connecting passage for connecting, and connecting the connecting passage to the first chamber.
The connection port is provided so as to face substantially the center of the impeller.
The papermaking raw material that has flowed into the primary chamber from the papermaking raw material inlet through the first chamber and the flat screen is agitated by the agitating member located outside the substantially cylindrical screen. Then, the papermaking raw material is caused to flow from the outside to the inside of the substantially cylindrical screen, and the carefully selected papermaking raw material is guided to the papermaking raw material outlet. a downstream side of the papermaking material in the chamber, the foreign substance and prevents the flow of the papermaking material before reaching the outlet, a longer dwell time in the bath of the papermaking material, downstream of the connection passage Under the tank
The flow-side connection passage opening is provided with a water supply facing the tank of the water supply pipe.
Located upstream of the papermaking raw material in the primary chamber from the pipe opening,
The downstream side papermaking raw material is supplied to the first chamber by the connection passage.
It is forcibly returned to disintegrate the undissolved pieces of the papermaking raw material.
【0010】[0010]
【0011】[0011]
【実施例】本発明の一実施例のスクリ−ン装置につい
て、図面を参照して説明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A screen device according to one embodiment of the present invention will be described with reference to the drawings.
【0012】図1乃至図4において、1は、スクリ−ン
装置で、スクリ−ン装置1は、攪拌部材2をスクリ−ン
3の外側で攪拌し、パルプ、古紙等の製紙原料をスクリ
−ン3の外側から内側に向かって流れて精選するタイプ
のスクリ−ンである。1 to 4, reference numeral 1 denotes a screen device. The screen device 1 stirs a stirring member 2 outside the screen 3 to screen pulp, waste paper and other papermaking raw materials. This is a type of screen that flows from the outside to the inside of the screen 3 and is carefully selected.
【0013】スクリ−ン装置1は、製紙原料を貯留する
槽4と、この槽4内に設けられ、一次室41と二次室42と
に区画し、一端を閉塞した閉塞部31、他端を開放した開
放部32、側面を複数の開口部33とした略円筒形状のスク
リ−ン3と、この略円筒形状のスクリ−ン3の外側に位
置して製紙原料を攪拌する攪拌部材2とから概略的に構
成されている。The screen device 1 is provided with a tank 4 for storing papermaking raw materials, and is provided in the tank 4 and is divided into a primary chamber 41 and a secondary chamber 42. A substantially cylindrical screen 3 having an open portion 32 having a plurality of openings 33 and a side surface having a plurality of openings 33, and a stirring member 2 positioned outside the substantially cylindrical screen 3 for stirring the papermaking raw material. From the schematic.
【0014】槽4には、製紙原料入口44及び異物出口45
を一次室41に臨むように、製紙原料出口46を二次室42に
臨むように、それぞれ設けられている。また、槽4の中
央には、略円筒形状のスクリ−ン3を支持する支持筒6
が、支持筒6内には、軸受Zを介してシャフト7が、そ
れぞれ設けられている。なお、シャフト7の一端には、
攪拌部材2が取り付けられ、シャフト7の他端には、図
示しないモ−タ、該モ−タからの回転を伝える図示しな
いベルトと係合するプ−リ8が取り付けてある。The tank 4 has a papermaking raw material inlet 44 and a foreign matter outlet 45.
The papermaking raw material outlet 46 is provided so as to face the primary chamber 41, and the papermaking material outlet 46 is provided so as to face the secondary chamber 42. In the center of the tank 4, a support cylinder 6 for supporting the substantially cylindrical screen 3 is provided.
However, a shaft 7 is provided in the support cylinder 6 via a bearing Z. In addition, at one end of the shaft 7,
The stirring member 2 is attached, and a motor (not shown) and a pulley 8 which engages with a belt (not shown) for transmitting rotation from the motor are attached to the other end of the shaft 7.
【0015】そして、一次室41の製紙原料の下流側であ
って、異物出口45に至る前の製紙原料の流れを阻止する
ように槽4の中に水を供給する水供給管5が、複数個、
例えば、本実施例では、4個、設けられている。水供給
管5の先端側は、リング状部材Rにより固定されてい
る。A plurality of water supply pipes 5 for supplying water into the tank 4 on the downstream side of the papermaking raw material in the primary chamber 41 and for preventing the flow of the papermaking raw material before reaching the foreign matter outlet 45 are provided. Pieces,
For example, in the present embodiment, four are provided. The distal end side of the water supply pipe 5 is fixed by a ring-shaped member R.
【0016】つまり、本実施例の製紙原料は、槽4の上
から下に向かって流れ、水供給管5の水は、槽4を横断
する方向に流れて、製紙原料の流れを阻止するようにな
っている。That is, the papermaking raw material of the present embodiment flows downward from the top of the tank 4, and the water in the water supply pipe 5 flows in the direction transverse to the tank 4, so that the flow of the papermaking raw material is prevented. It has become.
【0017】また、前述した攪拌部材2は、シャフト7
に直交する方向に位置する攪拌基部21(例えば、円盤)
と、該攪拌基部21の先端よりシャフト7の軸方向であっ
てスクリ−ン3の開放部32に向かう方向に位置する複数
(例えば、4個)の長手部材22とからなっている。Further, the stirring member 2 described above includes a shaft 7
Stirring base 21 (eg, disk) located in a direction perpendicular to
And a plurality (for example, four) of longitudinal members 22 located in the axial direction of the shaft 7 from the tip of the stirring base 21 toward the opening 32 of the screen 3.
【0018】また、一次室41の製紙原料の上流側と下流
側とは、接続通路9で接続され、該接続通路9内には、
ポンプ10が設けられている。そして、接続通路9の下流
側の槽4に臨む下流側接続通路口9aは、水供給管5の
槽4に臨む水供給管口5aより一次室41の製紙原料の上
流側に位置している。なお、望ましくは、ポンプ10に、
回転羽根10aに対向する接続通路9内に固定部材10bを
設けて、接続通路9内を通過する製紙原料の未溶解片を
離解させる離解機能を持たせるようにすると良い。The upstream side and the downstream side of the papermaking raw material in the primary chamber 41 are connected by a connection passage 9.
A pump 10 is provided. The downstream connection passage opening 9 a facing the tank 4 on the downstream side of the connection passage 9 is located on the upstream side of the papermaking raw material in the primary chamber 41 from the water supply pipe opening 5 a facing the tank 4 of the water supply pipe 5. . Preferably, the pump 10
It is preferable to provide a fixing member 10b in the connection passage 9 facing the rotary blade 10a so as to have a disintegration function for disintegrating undissolved pieces of papermaking raw material passing through the connection passage 9.
【0019】従って、製紙原料入口44から一次室41内に
流入した製紙原料は、スクリ−ン3の外側に位置する攪
拌部材2により攪拌され、製紙原料はスクリ−ン3の外
側から内側に向かって流入し、精選した製紙原料は製紙
原料出口46へと導かれる。Accordingly, the papermaking raw material flowing into the primary chamber 41 from the papermaking raw material inlet 44 is agitated by the stirring member 2 located outside the screen 3, and the papermaking raw material goes from the outside of the screen 3 to the inside. Then, the selected papermaking raw material is guided to a papermaking raw material outlet 46.
【0020】そして、水供給管5からの水の供給によ
り、一次室41の製紙原料の下流側であって、異物出口45
に至る前の製紙原料の流れが阻止され、阻止された分、
製紙原料の槽4内での貯留時間が長くなり、製紙原料の
未溶解片が離解されることとなる。その結果、リゼクト
率が低減し、歩留りを良好とすることができる。The supply of water from the water supply pipe 5 causes the foreign matter outlet 45 on the downstream side of the papermaking raw material in the primary chamber 41.
The flow of papermaking raw materials before reaching
The storage time of the papermaking raw material in the tank 4 becomes longer, and undissolved pieces of the papermaking raw material are disintegrated. As a result, the reject rate is reduced, and the yield can be improved.
【0021】また、一次室41の製紙原料の上流側と下流
側とを接続する接続通路9を、該接続通路9内にポンプ
10を、それぞれ設けることにより、下流側の製紙原料を
接続通路9を介して上流側へ強制的に戻し、製紙原料の
未溶解片をより一層離解させて、歩留りをより良好とす
る(リゼクト率の低減)ことができる。A connection passage 9 for connecting the upstream side and the downstream side of the papermaking raw material in the primary chamber 41 is provided with a pump in the connection passage 9.
By providing 10 respectively, the papermaking raw material on the downstream side is forcibly returned to the upstream side through the connection passage 9 and the undissolved pieces of the papermaking raw material are further disaggregated, thereby improving the yield (rejection rate). Can be reduced).
【0022】なお、本発明においては、前述した実施例
に示すように、単一のスクリ−ンに限らず、スクリ−ン
を複数有する所謂複合型スクリ−ンにも同様に適用する
ことができる。In the present invention, as shown in the above-described embodiment, the present invention is not limited to a single screen, and can be similarly applied to a so-called composite screen having a plurality of screens. .
【0023】即ち、スクリ−ン装置1は、図5乃至図7
に示すように、製紙原料を貯留する槽4と、この槽4内
に設けられ、第1の室Aと第2の室Bとに区画するフラ
ットなスクリ−ンSと、このスクリ−ンSの外側に位置
した第1の室Aに設けられ、前記製紙原料を攪拌するイ
ンペラIと、第2の室B内に設けられ、一次室41と二次
室42とに区画し、一端を閉塞した閉塞部31、他端を開放
した開放部32、側面を複数の開口部33とした略円筒形状
のスクリ−ン3と、略円筒形状のスクリ−ン3の外側に
位置して製紙原料を攪拌する攪拌部材2とから概略的に
構成されている。That is, the screen device 1 is shown in FIGS.
As shown in FIG. 1, a tank 4 for storing papermaking raw materials, a flat screen S provided in the tank 4 and partitioned into a first chamber A and a second chamber B, and the screen S An impeller I provided in a first chamber A located outside the container and agitating the papermaking raw material and a second chamber B provided with a primary chamber 41 and a secondary chamber 42, one end of which is closed. A substantially cylindrical screen 3 having a closed portion 31 having an open end, an open portion 32 having the other end opened, and a plurality of openings 33 on a side surface, and a papermaking raw material located outside the substantially cylindrical screen 3. And a stirring member 2 for stirring.
【0024】槽4には、製紙原料入口44及び第1の室異
物出口Dを第1の室Aに臨むように、異物出口45を一次
室41に臨むように、製紙原料出口46を二次室42に臨むよ
うに、槽4にそれぞれ設けられている。In the tank 4, the papermaking material outlet 46 and the first chamber foreign matter outlet D face the first chamber A, and the foreign matter outlet 45 faces the primary chamber 41. Each is provided in the tank 4 so as to face the chamber 42.
【0025】第1の室異物出口Dは、クリ−ナCに接続
され、クリ−ナCで重量異物を除去された製紙原料は、
戻し通路Mを介して、再度第1の室Aに導かれる。The first room foreign matter outlet D is connected to a cleaner C, and the papermaking raw material from which heavy foreign matter has been removed by the cleaner C is:
Through the return passage M, it is again guided to the first chamber A.
【0026】また、槽4の中央には、略円筒形状のスク
リ−ン3を支持する支持筒6が、支持筒6内には、軸受
Zを介してシャフト7が、それぞれ設けられている。な
お、シャフト7の一端には、インペラIが取り付けら
れ、シャフト7の他端には、図示しないモ−タ、該モ−
タからの回転を伝える図示しないベルトと係合するプ−
リ8が取り付けてある。また、シャフト7の一端に近い
側には、攪拌部材2が取り付けてある。そして、フラッ
トなスクリ−ンSの開口部は、例えば、丸孔、略円筒形
状のスクリ−ン3の開口部33は、例えば、スリットとな
っている。At the center of the tank 4, a support cylinder 6 for supporting the substantially cylindrical screen 3 is provided, and within the support cylinder 6, a shaft 7 is provided via a bearing Z. An impeller I is attached to one end of the shaft 7, and a motor (not shown)
Puller that engages with a belt (not shown) that transmits rotation from the motor
Ri 8 is attached. On the side near one end of the shaft 7, the stirring member 2 is attached. The opening of the flat screen S is, for example, a round hole, and the opening 33 of the substantially cylindrical screen 3 is, for example, a slit.
【0027】また、一次室41の製紙原料の下流側であっ
て、異物出口45に至る前の製紙原料の流れを阻止するよ
うに槽4の中に水を供給する水供給管5が、複数個、例
えば、本実施例では、4個、設けられている。水供給管
5の先端側は、リング状部材Rにより固定されている。A plurality of water supply pipes 5 for supplying water into the tank 4 on the downstream side of the papermaking raw material in the primary chamber 41 and for preventing the flow of the papermaking raw material before reaching the foreign matter outlet 45 are provided. In this embodiment, for example, four are provided. The distal end side of the water supply pipe 5 is fixed by a ring-shaped member R.
【0028】つまり、本実施例の製紙原料は、槽4の上
から下に向かって流れ、水供給管5の水は、槽4を横断
する方向に流れて、製紙原料の流れを阻止するようにな
っている。That is, the papermaking raw material of the present embodiment flows from the top to the bottom of the tank 4, and the water in the water supply pipe 5 flows in the direction transverse to the tank 4, so that the flow of the papermaking raw material is prevented. It has become.
【0029】また、前述した攪拌部材2は、シャフト7
に直交する方向に位置する攪拌基部21(例えば、円盤)
と、該攪拌基部21の先端よりシャフト7の軸方向であっ
てスクリ−ン3の開放部32に向かう方向に位置する複数
(例えば、4個)の長手部材22とからなっている。Further, the stirring member 2 described above includes a shaft 7
Stirring base 21 (eg, disk) located in a direction perpendicular to
And a plurality (for example, four) of longitudinal members 22 located in the axial direction of the shaft 7 from the tip of the stirring base 21 toward the opening 32 of the screen 3.
【0030】また、第1の室Aと一次室41の製紙原料の
下流側とは、接続通路9で接続され、該接続通路9内に
は、接続通路9を開閉する開閉弁Kが設けられている。
開閉弁Kは、製紙原料の種類、製紙原料の品質等、必要
に応じて開閉コントロ−ルされるようになっている。そ
して、接続通路9の第1の室Aへの接続口A1、つま
り、接続通路9の第1の室Aに臨む接続口A1は、図5
記載の実線位置でも良いが、より望ましくは、二点鎖線
で示すように、インペラIの略中心を臨むように設けら
れ、また、場合によっては、接続通路9の第1の室Aに
臨む接続口A1の代わりに、接続通路9の一端を戻し通
路Mに接続する。その際、接続通路9内の製紙原料をけ
ん引するエゼクタ効果を利用するように接続すると良
い。そして、接続通路9の他端、つまり、下流側の槽4
に臨む下流側接続通路口9aは、水供給管5の槽4に臨
む水供給管口5aより一次室41の製紙原料の上流側に位
置している。The first chamber A and the downstream side of the papermaking raw material in the primary chamber 41 are connected by a connection passage 9, and an on-off valve K for opening and closing the connection passage 9 is provided in the connection passage 9. ing.
The opening / closing valve K is controlled to be opened / closed as required, such as the type of papermaking raw material and the quality of the papermaking raw material. The connection port A1 of the connection passage 9 to the first chamber A, that is, the connection port A1 of the connection passage 9 facing the first chamber A is shown in FIG.
The connection may be at the solid line position described, but more desirably, as shown by the two-dot chain line, the connection is provided so as to face the approximate center of the impeller I, and in some cases, the connection facing the first chamber A of the connection passage 9 One end of the connection passage 9 is connected to the return passage M instead of the port A1. At this time, it is preferable to make connection so as to use an ejector effect for towing the papermaking raw material in the connection passage 9. And the other end of the connection passage 9, that is, the downstream tank 4
The downstream side connection passage opening 9a facing the water supply pipe 5 is located on the upstream side of the papermaking raw material in the primary chamber 41 from the water supply pipe opening 5a facing the tank 4 of the water supply pipe 5.
【0031】従って、製紙原料入口44から第1の室A及
びフラットなスクリ−ンSを介して一次室41内に流入し
た製紙原料は、略円筒形状のスクリ−ン3の外側に位置
する攪拌部材2により攪拌され、製紙原料は略円筒形状
のスクリ−ン3の外側から内側に向かって流入し、精選
した製紙原料は製紙原料出口46へと導かれる。Accordingly, the papermaking raw material that has flowed into the primary chamber 41 from the papermaking raw material inlet 44 through the first chamber A and the flat screen S is agitated outside the substantially cylindrical screen 3. The papermaking raw material is stirred by the member 2 and flows from the outside to the inside of the substantially cylindrical screen 3, and the selected papermaking raw material is guided to the papermaking raw material outlet 46.
【0032】そして、水供給管5からの水の供給によ
り、一次室41の製紙原料の下流側であって、異物出口45
に至る前の製紙原料の流れが阻止され、阻止された分、
製紙原料の槽4内での貯留時間が長くなり、製紙原料の
未溶解片が離解されることとなる。その結果、リゼクト
率が低減し、歩留りを良好とすることができる。The supply of water from the water supply pipe 5 causes the foreign substance outlet 45 on the downstream side of the papermaking raw material in the primary chamber 41.
The flow of papermaking raw materials before reaching
The storage time of the papermaking raw material in the tank 4 becomes longer, and undissolved pieces of the papermaking raw material are disintegrated. As a result, the reject rate is reduced, and the yield can be improved.
【0033】また、第1の室Aと一次室41の製紙原料の
下流側とは、接続通路9で接続され、下流側の製紙原料
を接続通路9を介して第1の室Aへ強制的に戻し、製紙
原料の未溶解片をより一層離解させて、歩留りをより良
好とする(リゼクト率の低減)ことができる。The first chamber A and the downstream side of the papermaking raw material in the primary chamber 41 are connected by a connection passage 9, and the downstream side of the papermaking raw material is forced into the first chamber A via the connection passage 9. And the undissolved pieces of the papermaking raw material are further disintegrated to improve the yield (reduction of the reject rate).
【0034】特に、接続通路9の第1の室Aへの接続口
A1を、図5記載の二点鎖線で示すように、インペラI
の略中心を臨むように設けると、前述した実施例で述べ
たポンプ10が不要となる。また、下流側の製紙原料を接
続通路9を介して第1の室Aへ強制的にある量を確保す
るために、場合により、接続通路9内に前述した実施例
で述べたポンプ10を設けても良い。In particular, the connection port A1 of the connection passage 9 to the first chamber A is connected to the impeller I as shown by a two-dot chain line in FIG.
The pump 10 described in the above-mentioned embodiment becomes unnecessary if the pump 10 is provided so as to face the approximate center of the above. In order to forcibly secure a certain amount of the papermaking raw material on the downstream side to the first chamber A via the connection passage 9, the pump 10 described in the above-mentioned embodiment is optionally provided in the connection passage 9. May be.
【0035】[0035]
【0036】[0036]
【発明の効果】 請求項1 記載のスクリ−ン装置によれ
ば、一次室の製紙原料の上流側と下流側とを接続する接
続通路を、該接続通路内にポンプを、それぞれ設けるこ
とにより、下流側の製紙原料を接続通路を介して上流側
へ強制的に戻し、製紙原料の未溶解片をより一層離解さ
せて、歩留りをより良好とする(リゼクト率の低減)こ
とができる。 Effects of the Invention Claim 1 subscription according - According to the emission device
For example, by providing a connection passage connecting the upstream side and the downstream side of the papermaking raw material in the primary chamber and a pump in the connection passage, the downstream papermaking material is forced to the upstream side through the connection passage. And the undissolved pieces of the papermaking raw material are further disaggregated to improve the yield (reduction of the reject rate).
【0037】[0037]
【0038】また、請求項2記載のスクリ−ン装置によ
れば、第1の室と一次室の製紙原料の下流側とを接続す
る接続通路を、一次室の製紙原料の上流側と下流側とを
接続する接続通路を、この接続通路の第1の室への接続
口は、インペラの略中心を臨むように設けられ、前記接
続通路の下流側の前記槽に臨む下流側接続通路口は、水
供給管の前記槽に臨む水供給管口より前記一次室の前記
製紙原料の上流側に位置しているため、ポンプ等を使う
ことなく圧力差を利用して、接続通路により下流側の製
紙原料を第1の室へ戻し、製紙原料の未溶解片をより一
層離解させて、歩留りをより良好とする(リゼクト率の
低減)ことができる。Further, subscription of claim 2, wherein - according to the emission device, a connecting passage connecting the downstream side of the papermaking material in the first chamber and the primary chamber, the upstream side and the downstream side of the papermaking materials of the primary chamber The connection port to the first chamber of the connection path is provided so as to face the approximate center of the impeller, and the downstream connection path port facing the tank downstream of the connection path is Since it is located on the upstream side of the papermaking raw material in the primary chamber from the water supply port opening facing the tank of the water supply pipe, the pressure difference is used without using a pump or the like, and the downstream side is connected by the connection passage. The papermaking raw material is returned to the first chamber, and the undissolved pieces of the papermaking raw material are further disaggregated, so that the yield can be improved (reduction rate can be reduced).
【図1】図1は、本発明の一実施例のスクリ−ン装置の
概略的正面一部断面図である。FIG. 1 is a schematic front partial sectional view of a screen device according to an embodiment of the present invention.
【図2】図2は、図1のX−X線による概略的断面図で
ある。FIG. 2 is a schematic cross-sectional view taken along line XX of FIG.
【図3】図3は、図2の一部を拡大して示す概略的拡大
断面図である。FIG. 3 is a schematic enlarged sectional view showing a part of FIG. 2 in an enlarged manner.
【図4】図4は、図1の接続通路の一部を拡大して示す
概略的拡大断面図である。FIG. 4 is a schematic enlarged sectional view showing a part of the connection passage of FIG. 1 in an enlarged manner.
【図5】図5は、本発明の他の実施例のスクリ−ン装置
の概略的正面一部断面図である。FIG. 5 is a schematic front partial sectional view of a screen device according to another embodiment of the present invention.
【図6】図6は、図5のY−Y線による概略的断面図で
ある。FIG. 6 is a schematic sectional view taken along line YY of FIG. 5;
【図7】図7は、図6の接続通路の一部を拡大して示す
概略的拡大断面図である。FIG. 7 is a schematic enlarged sectional view showing a part of the connection passage of FIG. 6 in an enlarged manner.
1 スクリ−ン装置 2 攪拌部材 3 スクリ−ン 4 槽 5 水供給管 DESCRIPTION OF SYMBOLS 1 Screen device 2 Stirring member 3 Screen 4 Tank 5 Water supply pipe
Claims (2)
を閉塞した閉塞部、他端を開放した開放部、側面を複数
の開口部とした略円筒形状のスクリ−ンと、 このスクリ−ンの外側に位置して前記製紙原料を攪拌す
る攪拌部材と、 製紙原料入口及び異物出口を前記一次室に臨むように、
製紙原料出口を前記二次室に臨むように、前記槽にそれ
ぞれ設け、 前記一次室の前記製紙原料の下流側であって、前記異物
出口に至る前の前記製紙原料の流れを阻止するように前
記槽の中に水を供給する水供給管と、 前記一次室の製紙原料の上流側と下流側とを接続する接
続通路と、 この接続通路内に設けられたポンプとを備え、 前記製紙原料入口から前記一次室内に流入した前記製紙
原料を前記スクリ−ンの外側に位置する前記攪拌部材に
より攪拌し、前記製紙原料を前記スクリ−ンの外側から
内側に向かって流入させて精選した前記製紙原料を前記
製紙原料出口へ導き、 前記水供給管からの水の供給により、前記一次室の前記
製紙原料の下流側であって、前記異物出口に至る前の前
記製紙原料の流れを阻止して、前記製紙原料の前記槽内
での貯留時間を長くし、前記接続通路の下流側の前記槽に臨む下流側接続通路口
は、前記水供給管の前記槽に臨む水供給管口より前記一
次室の前記製紙原料の上流側に位置し、前記ポンプによ
り下流側の前記製紙原料を上流側へ強制的に戻し、 前記
製紙原料の未溶解片を離解させることを特徴とするスク
リ−ン装置。1. A tank for storing a raw material for papermaking, a tank provided in the tank, divided into a primary chamber and a secondary chamber, a closed section having one end closed, an open section opened at the other end, and a plurality of side faces. A substantially cylindrical screen having an opening, a stirring member positioned outside the screen for stirring the papermaking raw material, and a papermaking raw material inlet and a foreign matter outlet facing the primary chamber.
A papermaking raw material outlet is provided in each of the tanks so as to face the secondary chamber, so that the flow of the papermaking raw material before reaching the foreign matter outlet is located downstream of the papermaking raw material in the primary chamber. contact for connecting the water supply pipe for supplying water into said tank, the upstream side and the downstream side of the papermaking materials of the primary chamber
A continuous passage, and a pump provided in the connection passage, wherein the papermaking raw material flowing into the primary chamber from the papermaking raw material inlet is stirred by the stirring member located outside the screen, and the papermaking is performed. material the subscription - leads from the outside of down the papermaking raw material selective by flowing inward to the <br/> papermaking material outlet, the supply of water from the water supply pipe, the papermaking of the primary chamber On the downstream side of the raw material, the flow of the papermaking raw material before reaching the foreign matter outlet is prevented, the storage time of the papermaking raw material in the tank is lengthened, and the tank on the downstream side of the connection passage is formed. Downstream connection passage opening facing
Is connected to the water supply pipe through the water supply pipe opening facing the tank.
It is located upstream of the papermaking raw material in the next chamber, and is
A screen apparatus for forcibly returning the papermaking raw material on the downstream side to the upstream side to disintegrate undissolved pieces of the papermaking raw material.
フラットなスクリ−ンと、 このスクリ−ンの外側に位置した前記第1の室に設けら
れ、前記製紙原料を 攪拌するインペラと、 前記第2の室内に設けられ、一次室と二次室とに区画
し、側面を複数の開口部とした略円筒形状のスクリ−ン
と、 この略円筒形状のスクリ−ンの外側に位置して前記製紙
原料を攪拌する攪拌部材と、 製紙原料入口及び第1の室異物出口を前記第1の室に臨
むように、異物出口を前記一次室に臨むように、製紙原
料出口を前記二次室に臨むように、前記槽にそれぞれ設
け、 前記一次室の前記製紙原料の下流側であって、前記異物
出口に至る前の前記製紙原料の流れを阻止するように前
記槽の中に水を供給する水供給管と、 前記 第1の室と前記一次室の製紙原料の下流側とを接続
する接続通路と、この接続通路の前記第1の室への接続口は、前記インペ
ラの略中心を臨むように設けられ、 前記製紙原料入口から前記第1の室及び前記フラットな
スクリ−ンを介して前記一次室内に流入した前記製紙原
料を前記略円筒形状のスクリ−ンの外側に位置する前記
攪拌部材により攪拌し、前記製紙原料を前記略円筒形状
のスクリ−ンの外側から内側に向かって流入させて精選
した前記製紙原料を前記製紙原料出口へ導き、 前記水供給管からの水の供給により、前記一次室の前記
製紙原料の下流側であって、前記異物出口に至る前の前
記製紙原料の流れを阻止して、前記製紙原料の槽内での
貯留時間を長くし、 前記接続通路の下流側の前記槽に臨む下流側接続通路口
は、前記水供給管の前記槽に臨む水供給管口より前記一
次室の前記製紙原料の上流側に位置し、前記接続通路に
より下流側の製紙原料を前記第1の室へ強制的に戻し、
前記製紙原料の未溶解片を離解させることを特徴とする
スクリ−ン装置。2. A tank for storing a papermaking raw material, and a first chamber and a second chamber provided in the tank.
A flat screen , provided in the first chamber located outside the screen;
And an impeller for stirring the papermaking raw material, and a first chamber and a second chamber provided in the second chamber.
And a substantially cylindrical screen having a plurality of openings on the side.
And the papermaking machine positioned outside the substantially cylindrical screen.
A stirrer for stirring the raw material , a papermaking raw material inlet and a first chamber foreign matter outlet are directed to the first chamber.
The papermaking material so that the foreign matter exit faces the primary chamber.
In each of the tanks, the material outlet faces the secondary chamber.
Only, a downstream side of the papermaking material in the primary chamber, the foreign substance
So as to prevent the flow of the papermaking raw material before reaching the exit
A water supply pipe for supplying water into the serial tank, a connecting passage connecting the downstream side of the papermaking material in the first chamber and the primary chamber, the connection port to the first chamber of the connecting passage Is the impe
The first chamber and the flat chamber are provided so as to face substantially the center of the
The papermaking raw material that has flowed into the primary chamber through a screen;
The material is located outside the substantially cylindrical screen.
Stir by a stirrer, and convert the papermaking raw material into the substantially cylindrical shape.
Selected from the outside of the screen
The papermaking raw material is guided to the papermaking raw material outlet, and the water is supplied from the water supply pipe.
Downstream of the papermaking raw material and before reaching the foreign matter outlet
By blocking the flow of the papermaking raw material, the papermaking raw material
The dwell time was lengthened, the downstream-side connecting passageway opening facing the tank downstream of the connection passage is positioned upstream of the papermaking material in the primary chamber from the water supply pipe opening facing the tank of the water supply pipe And, the papermaking raw material on the downstream side is forcibly returned to the first chamber by the connection passage,
It characterized thereby macerating the undissolved pieces of the papermaking material
Scan chestnut - down apparatus.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP02351297A JP3190278B2 (en) | 1997-02-06 | 1997-02-06 | Screen device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP02351297A JP3190278B2 (en) | 1997-02-06 | 1997-02-06 | Screen device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH10219579A JPH10219579A (en) | 1998-08-18 |
JP3190278B2 true JP3190278B2 (en) | 2001-07-23 |
Family
ID=12112512
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP02351297A Expired - Fee Related JP3190278B2 (en) | 1997-02-06 | 1997-02-06 | Screen device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP3190278B2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR102281618B1 (en) * | 2019-12-17 | 2021-07-26 | 권오성 | Safety snow guard |
-
1997
- 1997-02-06 JP JP02351297A patent/JP3190278B2/en not_active Expired - Fee Related
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR102281618B1 (en) * | 2019-12-17 | 2021-07-26 | 권오성 | Safety snow guard |
Also Published As
Publication number | Publication date |
---|---|
JPH10219579A (en) | 1998-08-18 |
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