JPH02234992A - Separator for papermaking and treatment thereof - Google Patents
Separator for papermaking and treatment thereofInfo
- Publication number
- JPH02234992A JPH02234992A JP5288489A JP5288489A JPH02234992A JP H02234992 A JPH02234992 A JP H02234992A JP 5288489 A JP5288489 A JP 5288489A JP 5288489 A JP5288489 A JP 5288489A JP H02234992 A JPH02234992 A JP H02234992A
- Authority
- JP
- Japan
- Prior art keywords
- raw material
- screen
- chamber
- foreign matter
- control valve
- 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
- 239000002994 raw material Substances 0.000 claims abstract description 61
- 239000000835 fiber Substances 0.000 claims abstract description 25
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 14
- 238000005406 washing Methods 0.000 claims abstract description 11
- 238000000034 method Methods 0.000 claims description 30
- 238000012545 processing Methods 0.000 claims description 14
- 238000000926 separation method Methods 0.000 claims description 13
- 238000003756 stirring Methods 0.000 claims description 10
- 238000004519 manufacturing process Methods 0.000 claims description 9
- 238000011084 recovery Methods 0.000 claims description 8
- 238000004891 communication Methods 0.000 claims description 5
- 238000001514 detection method Methods 0.000 claims description 4
- 238000007599 discharging Methods 0.000 claims description 4
- 239000007788 liquid Substances 0.000 claims description 4
- 239000002699 waste material Substances 0.000 claims description 4
- 239000012535 impurity Substances 0.000 claims description 3
- 239000011888 foil Substances 0.000 claims description 2
- 238000012805 post-processing Methods 0.000 claims 1
- 239000000126 substance Substances 0.000 description 9
- 210000000038 chest Anatomy 0.000 description 4
- 239000012634 fragment Substances 0.000 description 4
- 238000002203 pretreatment Methods 0.000 description 4
- 239000002184 metal Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000010893 paper waste Substances 0.000 description 3
- 239000004575 stone Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000010813 municipal solid waste Substances 0.000 description 1
- 238000011017 operating method Methods 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 238000012958 reprocessing Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
Landscapes
- Paper (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、新生バルプ住産処理,堝祇処理又は新聞,雑
誌等の故紙処理において、未離解片.異物(金属片.石
.プラスチック片,スチロール片,ビニール片)を含む
製紙用原料から、末離解片を離解し、異物を系外に廃棄
するりジェクト処理用の製紙用スクリーンの製紙用分離
装置に関するものである.
〔従来の技術〕
一般に、新生バルプ生産処理・損祇処理・古紙処理など
製紙用設備においては原料となる繊維懸濁液中の未離解
片を離解し、かつ石、砂、金属片、樹脂片などの異物、
その他のごみ徘除のために多数の丸孔又はスリットのあ
るスクリーンプレートで密閉ケーシング内を仕切って区
画構成したスクリーン装置が用いられ、このスクリーン
装置に組合せてスクリーンテールを離解するため高速に
て回転するインペラを配備した高速離解機が知られてい
る.
このスクリーン装置を用いてリジェクト処理する場合、
従来では第5図(A)(B)に示すようにメインライン
Aに丸孔スクリーン装置slとスリットスクリーン装置
S8とを直列に配備し、丸孔スクリーンテールとスリッ
トスクリーンテールとをそれぞれ各別の離解機B,B,
で離解したのち、それぞれをチェストC, C.及び
ボンプD. D.を介して丸孔テールスクリーン装置s
sとスリットテールスクリーン装置S4とで処理する(
第5.図(A))か、或いは丸孔スクリーン装置sIと
スリットスクリーン装置Stとの両スクリーンテールを
一緒に合流してチェス}C及びポンブDで離解機Bに送
り離解したのちに、チヱストcl及びポンプD1を経て
丸孔テールスクリーン装置Ssで粗選したのちスリット
テールスクリーン装置S◆で処理すること(第5図(B
))が行われている.〔発明が解決しようとする課題〕
ところが、この従来処理システムでは、各スクリーンテ
ール中の異物が高速離解機で微細化されやすいし、処理
システムが複雑化して割高となるほか、丸孔テールスク
リーン装置.スリットテールスクリーン装置のハイドロ
フォイル、即ちアジテータに異物がかかり操業トラブル
の原因となると共に、再びスクリーン装置に戻った多く
の異物がスクリーンの目詰まりの原因となって望ましく
ないし、分離機能も低下するのでポンプ容量を大きくし
なければならず、テールスクリーン装置だけの単独処理
の場合は、未離解片が粕として排出され歩留りが悪くな
って問題があった.本発明は、これら従来の諸欠点を適
確に徘除しようとするもので、有用繊維と異物とを分離
する精選処理能力の増大が可能であり、しかも未離解片
の排出が少なく、高速離解機程異物は砕かれないので製
品品質が向上すると共に、原料中の未離解片の量及び性
質によって離解機能の操作及び運転時間を調節でき、異
物破砕程度も調節出来るスクリーンテールの処理システ
ムは簡素化でき、有用繊維の回収を大幅に高められる装
置並びにその運転方法を安価な形態で提供することを目
的としたものである.
〔課題を解決するための手段〕
本発明は、制御弁のある原料流路に連通ずる製砥用原料
入口から導入される原料を有用繊維分と不純物の異物分
とに分離するためのスクリーンを密閉ケーシング中に室
内を前処理室と後処理室とに仕切った区画状態で配備し
、このスクリーンに近接して回転インペラを前処理室内
に設けた分離機構と、該分離機構で分離した粗大異物の
導出路とを配備した装置において、前記前処理室中に生
ずる旋回流,渦流を攪乱させる回転インペラを前処理室
内に配備すると共に、後室に制御弁のある流路にそれぞ
れ連通された精選原料出口と微細異物排出口とを形成し
、かつ前記前処理室に制御弁のある洗浄水供給流路を連
通配備したことを特徴とする製紙用分離装置である.
また、丸孔スクリーン装置及びスリットスクリーン装置
よりのスクリーンテールをスクリーンのある密閉ケーシ
ングにおいて離解処理する際に、水張り工程及び原料通
し運転工程中に残留末離解片の離解工程を含み、前記密
閉ケーシングへの原料及び洗浄水の供給と粗大異物.微
細異物並びに精選有用繊維の排出との各操作を各流路に
配備される制御弁の開閉によって行うものであって、前
記原料通し運転工程中にタイマ又は負荷又は原料の入口
.出口の圧力差のいずれか先に作動した検出を優先して
、残留末離解片の離解工程に移し、有用繊維回収・洗浄
工程と粗大異物排出工程及び微細異物排出工程とを順次
行い各工程をタイマによって所定時分継続して運転する
ことをも特徴としている。DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention is applicable to the treatment of undisintegrated fragments in the treatment of new bulp products, the treatment of waste paper such as newspapers and magazines, etc. A paper manufacturing separation device for paper manufacturing screens that disintegrates disintegrated pieces from paper manufacturing raw materials containing foreign substances (metal pieces, stones, plastic pieces, styrene pieces, vinyl pieces) and discards the foreign substances outside the system. It is related to. [Prior art] In general, in paper manufacturing equipment such as new pulp production processing, waste paper processing, and waste paper processing, undisintegrated pieces in a fiber suspension that is a raw material are disintegrated, and stones, sand, metal pieces, and resin pieces are disintegrated. Foreign objects such as
In order to remove other debris, a screen device is used in which the inside of the sealed casing is divided into compartments using screen plates with a large number of round holes or slits, and in combination with this screen device, the screen rotates at high speed to disintegrate the screen tail. High-speed disintegration machines equipped with impellers are known. When processing rejection using this screen device,
Conventionally, as shown in FIGS. 5(A) and 5(B), a round hole screen device sl and a slit screen device S8 are arranged in series on the main line A, and the round hole screen tail and the slit screen tail are separated from each other. Disintegrator B, B,
After disaggregating them, place them in chests C and C. and Bomp D. D. Through the round hole tail screen device
s and the slit tail screen device S4 (
Fifth. (A)), or the screen tails of the round hole screen device sI and the slit screen device St are combined together and sent to the disintegrating machine B using Chest C and pump D, and then disintegrated using Chest C and pump D. D1, rough selection with round hole tail screen device Ss, and then processing with slit tail screen device S◆ (Fig. 5 (B)
)) is being carried out. [Problems to be Solved by the Invention] However, in this conventional processing system, foreign matter in each screen tail is likely to be reduced to fine particles by the high-speed disintegrator, the processing system becomes complicated and expensive, and the round hole tail screen device .. Foreign matter may fall on the hydrofoil, i.e., the agitator, of the slit tail screen device, causing operational troubles, and many foreign matter that return to the screen device may cause clogging of the screen, which is undesirable and also reduces the separation function. The pump capacity had to be increased, and if the tail screen device was used alone, there was a problem in that undisintegrated pieces were discharged as lees, resulting in poor yield. The present invention aims to accurately eliminate these conventional drawbacks, and it is possible to increase the selection processing capacity for separating useful fibers from foreign substances, reduce the discharge of undisintegrated pieces, and enable high-speed disintegration. The screen tail processing system is simple, as foreign matter is not crushed by the machine, improving product quality, and the operation and operating time of the disintegrating function can be adjusted depending on the amount and nature of undisintegrated pieces in the raw material, and the degree of foreign matter crushing can also be adjusted. The purpose of this project is to provide an inexpensive device and operating method that can greatly increase the recovery of useful fibers. [Means for Solving the Problems] The present invention provides a sealed screen for separating the raw material introduced from the raw material inlet for grinding into useful fibers and impurities. A separation mechanism is installed in the casing that divides the room into a pre-treatment chamber and a post-treatment chamber, and a rotating impeller is installed in the pre-treatment chamber in close proximity to the screen. In the apparatus, a rotary impeller is provided in the pretreatment chamber to disturb the swirling flow and eddy flow generated in the pretreatment chamber, and the selected raw material is connected to a flow path having a control valve in the rear chamber. This separator for paper manufacturing is characterized in that an outlet and a fine foreign matter discharge port are formed, and a wash water supply channel with a control valve is provided in communication with the pretreatment chamber. In addition, when the screen tail from the round hole screen device and the slit screen device is disintegrated in a closed casing with a screen, a step of disintegrating the remaining disintegrated pieces is included during the water filling step and the raw material passing operation step, and the screen tail is transferred to the closed casing. supply of raw materials and washing water, and coarse foreign matter. The operation of discharging fine foreign matter and selected useful fibers is performed by opening and closing control valves provided in each flow path, and during the raw material passing operation process, a timer or load or raw material inlet is connected. Priority is given to the detection of the pressure difference at the outlet that is activated first, and the process is moved to the disintegration process for the residual disintegrated pieces, and the useful fiber recovery/washing process, the coarse foreign matter discharge process, and the fine foreign matter discharge process are sequentially performed to complete each process. Another feature is that it operates continuously for a predetermined amount of time using a timer.
分離装置の密閉ケーシング2内に給液された原料は、ス
クリーン1の近接して回転するインペラ5と、これに対
向した離解用攪拌翼8とで前処理室3内において攪乱さ
れスクリーン1から有用繊維を通過して流し、異物はス
クリーン1を通過せずに分離されて導出路7から前処理
室3外へ排除されて処理される.スクリーン1の前処理
室3側にはスクリーン面を拭う様に接近させて回転する
インペラ5と、このインペラ5の反対側の中心に高速で
回転する攪拌翼8を設けたものでは、前処理室3へ送り
込まれた原料はその回転方向の旋回,渦流を与えられ、
これに伴って生ずる遠心力により原料中の粗大異物は前
処理室3の外周壁に飛ばされ、その周壁を旋回しながら
導出路14の制御弁■4の間歇的な開閉により排除され
、一方のスクリーン1を通過した末離解繊維分は有用繊
維とともに、後処理室4の旋回流でスクリーンバケット
9で分離され、排出口10より排出流路l6の制御弁v
hの開閉で導出されると共に、必要に応じ一部は循環流
路l5の制御弁V,の開閉で原料流路1lに戻して再処
理される。さらにスクリーンバケット9を通過した有用
繊維は精選原料出口121より流路12の制御弁v2の
開閉制御で系外に取り出され次工程にて処理されるもの
であるが、前記密閉ケーシング2への原料通し運転工程
中にタイマ又は負荷又は原料の入口.出口の圧力差のい
ずれか先に作動した検出を優先して、残留末離解片の離
解工程に移し、有用繊維回収・洗浄工程と粗大異物排出
工程及び微細異物排出工程とを順次行い各工程をタイマ
によって所定時分継続して運転し離解作用を良好にし、
異物の分離機能を高めるほか、原料供給用のポンプ容量
も小さなもので済みランニングコストも著しく軽減でき
る装置とすることができる。The raw material supplied into the sealed casing 2 of the separator is agitated in the pretreatment chamber 3 by the impeller 5 rotating adjacent to the screen 1 and the stirring blades 8 for disintegration opposed thereto, and then released from the screen 1 into the usable material. The fibers are passed through, and foreign substances are separated without passing through the screen 1, and are removed from the pretreatment chamber 3 through the outlet path 7 and treated. An impeller 5 that rotates close to the screen 1 so as to wipe the screen surface is provided on the pretreatment chamber 3 side of the screen 1, and a stirring blade 8 that rotates at high speed is provided at the center on the opposite side of the impeller 5. The raw material fed into No. 3 is given swirl and vortex in the direction of rotation,
Due to the centrifugal force generated along with this, the coarse foreign matter in the raw material is blown to the outer circumferential wall of the pretreatment chamber 3, and is removed by the intermittent opening and closing of the control valve 4 of the outlet passage 14 while rotating on the circumferential wall. The disaggregated fibers that have passed through the screen 1 are separated together with the useful fibers in the screen bucket 9 in the swirling flow of the after-treatment chamber 4, and are then discharged from the discharge port 10 through the control valve v of the discharge flow path l6.
h is led out by opening/closing the control valve V, and if necessary, a portion is returned to the raw material flow path 1l for reprocessing by opening/closing the control valve V of the circulation flow path 15. Further, the useful fibers that have passed through the screen bucket 9 are taken out of the system from the selected raw material outlet 121 by opening and closing control of the control valve v2 of the flow path 12 and are processed in the next process. Timer or load or material inlet during run-through process. Priority is given to the detection of the pressure difference at the outlet that is activated first, and the process is moved to the disintegration process for the residual disintegrated pieces, and the useful fiber recovery/washing process, the coarse foreign matter discharge process, and the fine foreign matter discharge process are sequentially performed to complete each process. The machine is operated continuously for a predetermined amount of time using a timer to improve the disaggregation effect.
In addition to improving the ability to separate foreign substances, the device can also be made with a small pump capacity for supplying raw materials, significantly reducing running costs.
本発明の実施例を第1〜4図例で説明すると、製紙原料
のメインラインAにある丸孔スクリーン装置S1及びス
リットスクリーン装置S2よりのスクリーンテールをチ
ェストC及びボンプDを経てスクリーン1のある密閉ケ
ーシング2に導入する.即ち、制御弁■1のある原料流
路11に連通ずる製紙用原料人口6から導入される原料
を有用繊維分と不純物の異物分とに分離するためのスク
リーン1を密閉ケーシング2中に室内を前処理室3と後
処理室4とに仕切った区画状態で配備し、このスクリー
ン1に近接して回転インペラ5を前処理室3内に設けた
分離機構と、該分離機構で分離した粗大異物の排出口1
0に連結した導出流路l4とを配備した装置において、
前記前処理室3中に生ずる旋回流,渦流を攪乱させる離
解用撹拌翼8を前記回転インペラ5に対向して前処理室
3内に配備か、回転インペラで旋回流・渦巻を攪拌する
と共に、後処理室4に制御弁V,,V,のある流路12
.16にそれぞれ連通された精選原料出口12Iと微細
異物排出口10とを形成し、かつ前記前処理室3に制御
弁V3のある洗浄水供給流路13を連通配備して製紙用
分離装置としてある.この場合、前記離解用攬拌翼8と
しては、前記回転インベ,ラ5より小径例えば1/30
寸法で高速度例えば1000〜3000 r.p.■.
の速度で逆回転又は同回転若しくは間歇的に逆回転され
る駆動機構、例えばモータ18を備えて、全工程連続又
は末離解片離解工程のみなどに選択運転すればよく、前
記後処理室4には円筒形のスクリーンバケット9を設け
て精選原料回収室l9と微細異物回収室20とに区画し
、該円筒形スクリーンバケット9に沿って移動するアジ
テータホイル21を備えてある.なお、前記密閉ケーシ
ング2内に装備されるスクリーン1が、丸孔ストレーナ
を用い、スクリーンバスケット9はスリットスクリーン
として組合せた構成とするダブルセパレー夕型式とする
のがよい.
さらに製紙用原料としては、密閉ケーシング2に接線方
向から供給されて旋回流を生ずるようにし、この原料及
び洗浄水の供給と粗大異物.微細異物並びに精選原料の
排出との各掻作を各流路11,12. 13. 14,
15. 16に配備される制御弁V, 〜V,の開閉
によって行うもので、前・記密閉ケーシング2にはエア
抜き弁V,のある排気流路17を備えると共に、流路1
1,12に手動弁Vs,Vqを付設してあり、各制御弁
V,−V,は第1表のように開閉操作を繰り返し、分離
処理が行われる。Embodiments of the present invention will be explained with reference to FIGS. 1 to 4. The screen tail from the round hole screen device S1 and the slit screen device S2 in the main line A of papermaking raw materials is passed through the chest C and the pump D to the screen 1. Introduce into sealed casing 2. That is, a screen 1 is installed inside a sealed casing 2 to separate the raw material introduced from the papermaking raw material 6 into useful fibers and impurities. A separation mechanism is provided in which a pretreatment chamber 3 and a posttreatment chamber 4 are partitioned, and a rotating impeller 5 is provided in the pretreatment chamber 3 in close proximity to the screen 1, and coarse foreign matter separated by the separation mechanism. outlet 1
In a device equipped with an outlet flow path l4 connected to
A stirring blade 8 for disintegration that disturbs the swirling flow and vortex generated in the pretreatment chamber 3 is provided in the pretreatment chamber 3 opposite to the rotating impeller 5, or a rotating impeller stirs the swirling flow and vortex, and A flow path 12 with control valves V, , V, in the aftertreatment chamber 4
.. A selected raw material outlet 12I and a fine foreign matter discharge port 10 are formed in communication with each of the pretreatment chambers 16 and 16, and a washing water supply channel 13 with a control valve V3 is provided in communication with the pretreatment chamber 3, thereby forming a separation device for paper manufacturing. .. In this case, the disintegration stirring blade 8 has a diameter smaller than that of the rotary inverter 5, for example, 1/30.
Dimensions and high speed e.g. 1000-3000 r. p. ■.
It is sufficient to provide a drive mechanism, for example, a motor 18, which rotates in reverse, at the same speed, or intermittently in reverse at a speed of A cylindrical screen bucket 9 is provided to divide the chamber into a selected raw material recovery chamber 19 and a fine foreign matter recovery chamber 20, and an agitator foil 21 that moves along the cylindrical screen bucket 9 is provided. In addition, it is preferable that the screen 1 installed in the sealed casing 2 is of a double separator type in which a round hole strainer is used and the screen basket 9 is combined as a slit screen. Furthermore, the raw material for papermaking is supplied tangentially to the closed casing 2 to generate a swirling flow, and this raw material and washing water are supplied and coarse foreign matter is removed. Each channel 11, 12. discharges fine foreign matter and selected raw materials. 13. 14,
15. The air-tight casing 2 is equipped with an exhaust passage 17 with an air bleed valve V, and the air passage 1
Manual valves Vs and Vq are attached to the control valves 1 and 12, and the control valves V and -V are repeatedly opened and closed as shown in Table 1 to perform separation processing.
〔{旦し、C・・・弁閉
第1表
0・・・弁開
0/C・・・弁絞りi開
即ち、スクリーン水張り後に原料通し運転工程に入り、
継続して有用繊維を流路12から導出するが、タイマ又
は負荷又は原料の入口.出口の圧力差のいずれか先に作
動した検出を優先して、残留末離解片の離解工程ののち
、有用繊維の精選原料回収・洗浄工程と粗大異物排出工
程及び末離解繊維分を含む微細異物排出工程とを順次行
い各工程をタイマによって所定時分継続して運転する.
例えば、原料中の異物はスクリーンlを通過出来ず次第
にケーシング2内に濃縮され、出口への良質原料通過が
妨げられてくる.タイマ又はモータの負荷、若しくは出
入口の差圧が予め設定された状態となると大口弁の制御
弁vlが閉じられ、洗浄水がケーシング2内に導入され
、ケーシング2内に残留する良質繊維を出口側に回収す
る.良質繊維が回収された後、ケーシング内は水と異物
のみとなりリジェクトバルプの弁V.を全開することに
より糸外へ異物を徘棄する.これら全ての動作は自動的
にコントロールされ、無人運転されなお、前記残留末離
解片の離解工程においては、末離解繊維分を含む排液の
一部を原料供給流路11を経て、又は前処理室3に直接
循環しつつ、精選原料の一部を排出する制御弁V,,V
,の絞り開度とし、他の給排操作は制御弁Vl+V3+
V4+V!,V?を閉じて休止させて運転継続したり、
前記原料通し運転工程において、原料供給と精選原料排
出と微異物を含む排液全量の原料供給路への循環とを行
う制御弁V.V!,VSを開とし、他の給排操作は制御
弁Vz.V*,Vb.V?を閉じて休止させて連続運転
すればよい.
また、前記ハイドロフォイル21は、回転インペラ5と
共に回転軸22及びプリ−23を介してモータ24で前
記モータ18の回転に対してコントロールされつつ例え
ば300〜8 0 0r.p,m.で駆動されるように
構成してあるが、単一モータで変速又は増速機構乃至ク
ラッチ機構を介して連動する形態としてもよく、さらに
各制御弁v1〜■,及び各検出器.タイマはデータ処理
部のコンピュータユニット(図示せず)に連絡され、制
1B回路を構成してあって、原料処理量,原料種類.原
料濃度,出入口圧力差,負荷など離解条件のデータをア
ナログ信号として入力してデジタル信号に変換するA/
Dコンバータ及びD/Aコンバータを含む前記コンピュ
ータユニットで内部固定データと入力データとを比較処
理して前記回転インペラ5及び攪拌翼8を駆動するモー
タを制御し、かつ制御弁V1〜V,の開閉を制御し連続
的に表示部にデジタル表示させながら運転するようにす
るのがよい.
図中、Tはタイマ、llpは負荷、Δpは差圧、25は
基台である.
〔発明の効果〕
本発明は、スクリーンを密閉ケーシング中に室内を前処
理室と後処理室とに仕切った区画状態で配備し、このス
クリーンに近接して回転インペラを前処理室内に設けた
分離機構と、該分離機構で分離した粗大異物の導出路と
を配備した装置において、前記前処理室中に生ずる旋回
流.渦流を攪乱させる回転インペラを前処理室内に配備
すると共に、後処理室に制御弁のある流路にそれぞれ連
通された精選原料出口と微細異物排出口とを形成し、か
つ前記前処理室に制御弁のある洗浄水供給流路を連通配
備したことにより、原料回流速度とインペラ或いはこれ
らと撹拌翼の回転速度の相対速度差を大きくして原料中
の未離解片を離解させ、有用繊維の回収率を大幅に高め
られると共に、高速離解機ほど異物は砕かれないし、異
物破砕程度も調節できて製品品質が向上し、粗大異物は
もちろん細かいごみをも適確に分離し、離解能力も大き
く有用繊維と異物とを分離する精選処理力の高い装置と
し、ケーシング内を高速旋回して生ずる遠心力の作用並
びに攪乱作用で末離解片の離解と原料中に混入する金属
片,石.その他の異物等の異物は適確に効率よく分離で
き、さらに分離装置に再循環される異物を可及的に少な
くし、スクリーン目詰まり現象を起こすことなく安全に
運転することが可能となり、しかも原料中の末離解片の
量及び性質によって離解機能の操作及び運転時間を調節
でき、異物破砕程度も調節出来るのでスクリーンテール
の処理システムは簡素化でき、原料供給ポンプもコンパ
クトで安価なものですみ能率良いスクリーン作業が可能
な分離装置を安価な状態で提供することができる。[C... Valve closed Table 1 0... Valve open 0/C... Valve throttle i open, that is, after filling the screen with water, enter the raw material passing operation process,
Useful fibers are continuously drawn out of the flow path 12, but at the timer or load or raw material inlet. Priority is given to the detection of the pressure difference at the outlet which is activated first, and after the disintegration process of the remaining disintegrated pieces, the process of recovering and cleaning the selected raw material for useful fibers, the coarse foreign matter discharge process, and the fine foreign matter including the disintegrated fiber fraction are carried out. The discharge process is performed sequentially, and each process is operated continuously for a predetermined amount of time using a timer.
For example, foreign substances in the raw material cannot pass through the screen 1 and are gradually concentrated in the casing 2, which prevents the quality raw material from passing to the outlet. When the load of the timer or motor or the differential pressure at the inlet and outlet reaches a preset state, the control valve vl of the large mouth valve is closed, and the washing water is introduced into the casing 2 to remove the high-quality fibers remaining in the casing 2 to the outlet side. Collect it. After the high-quality fibers are collected, there is only water and foreign matter inside the casing, and the reject valve valve V. By fully opening the thread, foreign objects are thrown out of the thread. All these operations are automatically controlled and operated unmanned. In the process of disintegrating the remaining disintegrated pieces, a part of the waste liquid containing the disintegrated fibers is passed through the raw material supply channel 11 or pretreated. Control valves V, , V that discharge part of the selected raw material while circulating directly to chamber 3
, and other supply/discharge operations are performed using control valves Vl+V3+
V4+V! ,V? Close it to stop it and continue operation,
In the raw material passing operation step, a control valve V. which performs raw material supply, selected raw material discharge, and circulation of the entire amount of waste liquid containing fine foreign matter to the raw material supply path. V! , VS are opened, and other supply/discharge operations are performed using the control valve Vz. V*, Vb. V? Just close it, pause it, and run it continuously. Further, the hydrofoil 21 is controlled by the rotation of the motor 18 by a motor 24 through a rotating shaft 22 and a pulley 23 together with a rotating impeller 5, and is rotated at a speed of, for example, 300 to 800 rpm. p, m. Although it is configured to be driven by a single motor, it may also be configured to be driven in conjunction with a speed change or speed increasing mechanism or a clutch mechanism, and each control valve v1 to v and each detector . The timer is connected to a computer unit (not shown) of the data processing section, and constitutes a control circuit 1B, which records the amount of raw material processed, the type of raw material, etc. A/A/
The computer unit including the D converter and the D/A converter compares and processes internal fixed data and input data to control the motor that drives the rotary impeller 5 and stirring blade 8, and opens and closes the control valves V1 to V. It is best to operate the machine while controlling it and continuously displaying digital information on the display. In the figure, T is a timer, llp is a load, Δp is a differential pressure, and 25 is a base. [Effects of the Invention] The present invention provides a separation system in which a screen is disposed in a sealed casing and the room is partitioned into a pre-treatment chamber and a post-treatment chamber, and a rotating impeller is provided in the pre-treatment chamber close to the screen. In an apparatus equipped with a mechanism and a passage for discharging coarse foreign matter separated by the separation mechanism, a swirling flow occurs in the pretreatment chamber. A rotating impeller for agitating the vortex is disposed in the pretreatment chamber, and a selected raw material outlet and a fine foreign matter discharge port are respectively connected to a flow path with a control valve in the aftertreatment chamber, and a control valve is provided in the pretreatment chamber. By installing a wash water supply channel with a valve for communication, the relative speed difference between the raw material recirculation speed and the rotation speed of the impeller or these and stirring blades is increased to disintegrate undisintegrated pieces in the raw material and recover useful fibers. In addition to significantly increasing the rate of disintegration, the foreign matter is not crushed as much as a high-speed disintegration machine, and the degree of foreign matter crushing can be adjusted, improving product quality.It can accurately separate not only coarse foreign matter but also fine garbage, and its disintegration ability is very useful. This equipment has a high selection processing power to separate fibers and foreign substances, and the action of centrifugal force generated by high-speed rotation inside the casing and disturbance action disintegrates the disintegrated fragments and removes metal fragments and stones mixed into the raw material. Other foreign substances can be separated accurately and efficiently, and the amount of foreign substances recirculated to the separator can be reduced as much as possible, allowing safe operation without causing screen clogging. The operation and operation time of the disintegrating function can be adjusted depending on the amount and properties of disaggregated fragments in the raw material, and the degree of foreign matter crushing can also be adjusted, so the screen tail processing system can be simplified, and the raw material supply pump can be compact and inexpensive. A separation device capable of efficient screening work can be provided at low cost.
第1図は本発明の実施例の縦断側面図、第2図は第1図
のI−1線の切断平面図、第3図は使用状態の系統図、
第4図は処理工程のフローシ一ト、第5図A−Bは従来
例一使用状態の系統図である.1・・・スクリーン、2
・・・ケーシング、3・・・前処理室、4・・・後処理
室、5・・・インペラ、6・・・入口、7・・・異物出
口、8・・・攪拌翼、9・・・スクリーンバケット、1
0・・・排出口、11, 12, 13, 14, 1
5. 16. 17・・・塊路、18.24・・・モー
タ、■1〜V,・・・制御弁.特許出願人 相川
鉄工株式会社FIG. 1 is a longitudinal sectional side view of an embodiment of the present invention, FIG. 2 is a plan view taken along line I-1 in FIG. 1, and FIG. 3 is a system diagram in use.
FIG. 4 is a flowchart of the treatment process, and FIGS. 5A and 5B are system diagrams of a conventional example in use. 1...screen, 2
...Casing, 3.. Pretreatment chamber, 4.. Aftertreatment chamber, 5.. Impeller, 6.. Inlet, 7.. Foreign matter outlet, 8.. Stirring blade, 9..・Screen bucket, 1
0...Discharge port, 11, 12, 13, 14, 1
5. 16. 17...Lump road, 18.24...Motor, ■1~V,...Control valve. Patent applicant Aikawa Iron Works Co., Ltd.
Claims (7)
から導入される原料を有用繊維分と不純物の異物分とに
分離するためのスクリーンを密閉ケーシング中に室内を
前処理室と後処理室とに仕切った区画状態で配備し、こ
のスクリーンに近接して回転インペラを前処理室内に設
けた分離機構と、該分離機構で分離した粗大異物の導出
路とを配備した装置において、前記前処理室中に生ずる
旋回流、渦流を攪乱させる回転インペラを前処理室内に
配備すると共に、後室に制御弁のある流路にそれぞれ連
通された精選原料出口と微細異物排出口とを形成し、か
つ前記前処理室に制御弁のある洗浄水供給流路を連通配
備したことを特徴とする製紙用分離装置。(1) A screen is placed in a sealed casing to separate the raw material introduced from the papermaking raw material inlet that communicates with the raw material flow path with a control valve into useful fibers and impurities. The apparatus is equipped with a separation mechanism which is arranged in a compartment divided into a processing chamber, a rotating impeller is provided in the pretreatment chamber in close proximity to the screen, and a guideway for the coarse foreign matter separated by the separation mechanism. A rotating impeller that disturbs the swirling flow and eddy flow generated in the pretreatment chamber is provided in the pretreatment chamber, and a selected raw material outlet and a fine foreign matter discharge port are formed, respectively, which are connected to a flow path with a control valve in the rear chamber. , and a washing water supply channel having a control valve is provided in communication with the pretreatment chamber.
理室内に設け、該離解用攪拌翼が、前記回転インペラよ
り小径であって、高速度で正回転又は逆回転される駆動
機構を備えたものである請求項1記載の装置。(2) A stirring blade for defibration is provided in the pretreatment chamber facing the rotary impeller, and the stirring blade for defibration has a smaller diameter than the rotary impeller and has a drive mechanism that rotates forward or reverse at high speed. 2. The apparatus of claim 1, comprising:
ットを設けて精選原料回収室と微細異物回収室とに区画
し、該円筒形スクリーンに沿って移動するアジテータホ
イルを備えているものである請求項1又は2記載の装置
。(3) The post-processing chamber is provided with a cylindrical screen bucket to divide the chamber into a selected raw material recovery chamber and a fine foreign matter recovery chamber, and is equipped with an agitator foil that moves along the cylindrical screen. 3. A device according to claim 1 or 2.
、丸孔ストレーナとスリットスクリーンバスケットとを
組合せた構成とした請求項3記載の装置。(4) The device according to claim 3, wherein the screen installed in the closed casing has a configuration that combines a round hole strainer and a slit screen basket.
よりのスクリーンテールをスクリーンのある密閉ケーシ
ングにおいて離解処理する際に、水張り工程及び原料通
し運転工程中に残留末離解片の離解工程を含み、前記密
閉ケーシングへの原料及び洗浄水の供給と粗大異物、微
細異物並びに精選有用繊維の排出との各操作を各流路に
配備される制御弁の開閉によって行うものであって、前
記原料通し運転工程中にタイマ又は負荷又は原料の入口
、出口の圧力差のいずれか先に作動した検出を優先して
、残留末離解片の離解工程に移し、有用繊維回収・洗浄
工程と粗大異物排出工程及び微細異物排出工程とを順次
行い各工程をタイマによって所定時分継続して運転する
ことを特徴とする製紙用分離処理方法。(5) When disintegrating the screen tail from the round hole screen device and the slit screen device in a closed casing with a screen, including a step of disintegrating the remaining disintegrated pieces during the water filling step and the raw material passing operation step, the closed casing The operation of supplying raw materials and washing water to the tank and discharging coarse foreign matter, fine foreign matter, and selected useful fibers is performed by opening and closing control valves installed in each flow path, and during the raw material passing operation process, Priority is given to the detection of the timer or the load or the pressure difference between the inlet and outlet of the raw material, whichever is activated first, and then transferred to the disintegration process of the remaining disintegrated pieces, and the useful fiber recovery/washing process, the coarse foreign matter discharge process, and the fine foreign matter discharge process. 1. A separation treatment method for paper manufacturing, characterized in that the steps are sequentially performed and each step is continuously operated for a predetermined period of time using a timer.
を含む排液の一部を原料供給路に循環しつつ、精選原料
の一部を排出するように制御弁の絞り開度とし、他の給
排操作は制御弁を閉じて休止させて運転継続する請求項
5記載の方法。(6) In the step of disintegrating the residual disintegrated pieces, the opening of the control valve is adjusted so that a part of the waste liquid containing fine foreign matter is circulated to the raw material supply path and a part of the selected raw material is discharged. 6. The method according to claim 5, wherein the supply/discharge operation is continued by closing the control valve and stopping the operation.
原料排出と、末離解繊維分を含む排液全量の原料供給路
への循環とを行う制御弁を開とし、他の給排操作は制御
弁を閉じて休止させて連続運転する請求項5記載の方法
。(7) In the raw material passing operation process, the control valves for supplying raw materials, discharging selected raw materials, and circulating the entire amount of waste liquid containing disintegrated fibers to the raw material supply path are opened, and other supply and discharge operations are controlled. 6. The method according to claim 5, wherein the continuous operation is performed with the valve closed and paused.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1052884A JP2762362B2 (en) | 1989-03-07 | 1989-03-07 | Separation treatment method for papermaking |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1052884A JP2762362B2 (en) | 1989-03-07 | 1989-03-07 | Separation treatment method for papermaking |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH02234992A true JPH02234992A (en) | 1990-09-18 |
JP2762362B2 JP2762362B2 (en) | 1998-06-04 |
Family
ID=12927305
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1052884A Expired - Fee Related JP2762362B2 (en) | 1989-03-07 | 1989-03-07 | Separation treatment method for papermaking |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2762362B2 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0489592U (en) * | 1990-02-21 | 1992-08-05 | ||
JP2013185276A (en) * | 2012-03-08 | 2013-09-19 | Nippon Sharyo Seizo Kaisha Ltd | Disk-type filtration apparatus |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5696984A (en) * | 1979-12-27 | 1981-08-05 | Aikawa Tekko | Pressure screen |
JPS61266687A (en) * | 1985-05-16 | 1986-11-26 | 株式会社 サトミ製作所 | Apparatus for treating hardly dissociable old paper |
-
1989
- 1989-03-07 JP JP1052884A patent/JP2762362B2/en not_active Expired - Fee Related
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5696984A (en) * | 1979-12-27 | 1981-08-05 | Aikawa Tekko | Pressure screen |
JPS61266687A (en) * | 1985-05-16 | 1986-11-26 | 株式会社 サトミ製作所 | Apparatus for treating hardly dissociable old paper |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0489592U (en) * | 1990-02-21 | 1992-08-05 | ||
JP2013185276A (en) * | 2012-03-08 | 2013-09-19 | Nippon Sharyo Seizo Kaisha Ltd | Disk-type filtration apparatus |
Also Published As
Publication number | Publication date |
---|---|
JP2762362B2 (en) | 1998-06-04 |
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