JPH11244785A - Method for classifying powdery raw material and cylindrical screen classifier - Google Patents
Method for classifying powdery raw material and cylindrical screen classifierInfo
- Publication number
- JPH11244785A JPH11244785A JP5198698A JP5198698A JPH11244785A JP H11244785 A JPH11244785 A JP H11244785A JP 5198698 A JP5198698 A JP 5198698A JP 5198698 A JP5198698 A JP 5198698A JP H11244785 A JPH11244785 A JP H11244785A
- Authority
- JP
- Japan
- Prior art keywords
- fine powder
- raw material
- cylindrical screen
- bag filter
- powder
- 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
Landscapes
- Combined Means For Separation Of Solids (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、中心線の方向に緊
張して取り付けられた合成樹脂繊維製の円筒スクリーン
と、この中心線上で高速回転する回転軸に放射状で且つ
中心線に対し僅かの捩れ角で取り付けられた数枚の撹拌
回転翼により円筒スクリーンの一端より内部に供給され
る粉状原料を篩い分けるようにした円筒スクリーン分級
機に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cylindrical screen made of synthetic resin fiber, which is attached in tension in the direction of a center line, and a rotary shaft which rotates at a high speed on the center line and which is radial and slightly offset from the center line. The present invention relates to a cylindrical screen classifier in which a powdery raw material supplied from one end of a cylindrical screen is sieved by several stirring rotors attached at a twist angle.
【０００２】[0002]
【従来の技術】この種の円筒スクリーン分級機は、前記
の高速回転する撹拌回転翼によって円筒スクリーン内面
の粉状原料を撹拌しつつ円筒スクリーン内面に沿って旋
回させ粉状原料に重力の数十倍の大きさの円心力を作用
させ、これによって円筒スクリーンの網目より細かなも
のは速やかにこの目を通過させて網下産物とし、網目よ
り粗いものは円筒スクリーンの他端から排出して網上産
物とするものである。2. Description of the Related Art A cylindrical screen classifier of this type is arranged such that the powdery raw material on the inner surface of the cylindrical screen is swirled along the inner surface of the cylindrical screen while stirring the powdery raw material on the inner surface of the cylindrical screen by the above-mentioned high-speed rotating stirring impeller, and the powdery raw material is subjected to several tens of gravitational force. Double centering force is applied, so that the finer than the mesh of the cylindrical screen is quickly passed through this mesh to produce the under-mesh product, and the coarser than the mesh is discharged from the other end of the cylindrical screen to remove the mesh. It is a good product.
【０００３】[0003]
【発明が解決しようとする課題】円筒スクリーン分級機
に１００ミクロン、７０ミクロン、或いは５０ミクロン
等の細かな網目の円筒スクリーンを装着して非常に細か
くて軽く、かつ、凝集し易い性質の合成樹脂粉末、粉体
塗料、トレー等を篩い分けようとすると、これらの原料
の内、網下産物となるものでも網目を通過して網下産物
と成らず、高速回転する撹拌翼の起こす風で舞い上がっ
て、投入原料の流れに沿ったり、又は粗粉粒子に付いて
網上を通過して網上産物と成ってしまうものがある。そ
の結果、篩分効率が下がってしまい、性能が落ちてしま
う。A synthetic resin having a very fine, light and easily agglomerated property by mounting a cylindrical screen having a fine mesh of 100 microns, 70 microns or 50 microns on a cylindrical screen classifier. When sieving powders, powder coatings, trays, etc., even among those raw materials, those that become net products do not pass through the mesh and do not become net products, so they are soared by the wind generated by the high-speed rotating stirring blade. Therefore, there are some products that pass along the flow of the input raw material or pass through the net with coarse powder particles to form net products. As a result, the sieving efficiency is reduced, and the performance is reduced.
【０００４】本発明は、このような現象の発生を防止し
て、軽くて細かく、かつ、凝集し易い粉状原料でも篩分
効率が高い、性能の優れた円筒スクリーン分級機を提供
することを目的とするものである。It is an object of the present invention to provide a cylindrical screen classifier which prevents such a phenomenon from occurring and has a high sieving efficiency even with a light, fine and easily agglomerated powdery raw material, and which has excellent performance. It is the purpose.
【０００５】[0005]
【課題を解決するための手段】この発明は、本体ケーシ
ングの微粉室上部に、内部にバグフィルターを有するパ
ブフィルターケースを設け、このバグフィルターを通し
本体ケーシング内の空気を吸引させることにより、供給
原料の流れに沿ったり、又は粗粒と共に網上を通過して
網上産物と成ってしまう微粉を該バグフィルターで捕集
して微粉室側へ戻し網下産物として回収する事によっ
て、上記課題の解決を達成しようとするものである。According to the present invention, a pub filter case having a bag filter inside is provided above a fine powder chamber of a main body casing, and the air in the main body casing is sucked through the bag filter to supply the air. The above problem is caused by collecting fine powder along the flow of the raw material or passing through the net together with coarse particles to form a net product by the bag filter, returning the fine powder to the fine powder chamber side, and collecting the net product as the net product. To achieve the solution.
【０００６】[0006]
【発明の実施の形態】原料入口より供給された粉状原料
の内、円筒スクリーンの網目を容易に通過すべき微粉の
あるものは、高速回転する撹拌翼の起こす風に乗って浮
遊している間に原料の流れに沿ったり、或いは、粗粉粒
子と共に網目上を通過して網上産物となってしまう。以
下、これらの微粉を浮遊微粉と呼ぶことにする。前記浮
遊微粉は本体ケーシングの微粉室上部に設けたバグフィ
ルターケース内のバグフィルターを通して本体ケーシン
グ内の空気を吸引する事によって、捕集され微粉室側へ
戻され、網下産物として回収出来る。そのため、従来の
ように篩分効果が低下し性能が悪くなる事がない。BEST MODE FOR CARRYING OUT THE INVENTION Among the powdery raw materials supplied from the raw material inlet, those having fine powders which should easily pass through a mesh of a cylindrical screen float on the wind generated by a high-speed rotating stirring blade. In the meantime, it passes along the flow of the raw material or passes over the mesh together with the coarse powder particles to become a net product. Hereinafter, these fine powders will be referred to as floating fine powders. The floating fine powder is collected and returned to the fine powder chamber side by sucking air in the main body casing through a bag filter in a bag filter case provided above the fine powder chamber of the main casing, and can be collected as a net product. Therefore, the sieving effect is not reduced and the performance is not deteriorated unlike the conventional case.
【０００７】[0007]
【実施例】この発明の一実施例を添付図面によって説明
する。本体ケーシング１には、軸受箱２に片持ちされた
回転軸３が設けられている。この回転軸３の自由端部に
は、回転円板４が設けられ、又、回転円板４と原料入口
６との間の回転軸３には、軸心に対して若干の傾斜角を
有する複数の回転撹拌翼８がアーム５を介して設けられ
ている。An embodiment of the present invention will be described with reference to the accompanying drawings. The main body casing 1 is provided with a rotating shaft 3 cantilevered in a bearing housing 2. A rotating disk 4 is provided at the free end of the rotating shaft 3, and the rotating shaft 3 between the rotating disk 4 and the raw material inlet 6 has a slight inclination angle with respect to the axis. A plurality of rotary stirring blades 8 are provided via the arm 5.
【０００８】回転撹拌翼８の外周には、粉粒体の流路Ｆ
Ｒを介して円筒スクリーン１０が設けられている。円筒
スクリーン１０の両端部は、入口側及び出口側の側板１
８、１９に固定された入口側取付リング１２と出口側取
付リング１１とにより支持されている。On the outer periphery of the rotary stirring blade 8, a flow path F
A cylindrical screen 10 is provided through R. Both end portions of the cylindrical screen 10 are the side plates 1 on the inlet side and the outlet side.
8 and 19 are supported by an inlet-side mounting ring 12 and an outlet-side mounting ring 11.
【０００９】円筒スクリーン１０は、合成繊維製の網体
で形成されて、入口側取付リング１２と出口側取付リン
グ１１の外径に嵌め込まれ複数のロッド１３によって軸
方向に緊張されている。The cylindrical screen 10 is formed of a net made of synthetic fibers, is fitted in the outer diameter of the inlet-side mounting ring 12 and the outlet-side mounting ring 11, and is tensioned in the axial direction by a plurality of rods 13.
【００１０】入口側及び出口側の側板１８、１９及び本
体ケーシング１の側板により微粉室７が形成されて、そ
の下方の微粉シュート２０を介し網下産物回収装置２１
に接続している。本体ケーシング１の出口側端板に取り
付けられた蓋板２２と出口側側板１９及び本体ケーシン
グ１の側板により粗粉室９が形成されて、その下方の粗
粉シュート２４に繋り、粗粉出口２３より排出された網
上産物を機外に取り出している。The fine-powder chamber 7 is formed by the side plates 18 and 19 on the inlet side and the outlet side and the side plate of the main casing 1, and the under-net product collecting device 21
Connected to The coarse powder chamber 9 is formed by the lid plate 22 attached to the outlet end plate of the main body casing 1, the outlet side plate 19, and the side plate of the main casing 1, and is connected to a coarse powder chute 24 below the coarse powder chamber 9. The net product discharged from 23 is taken out of the machine.
【００１１】又、必要によっては、その下部に網上産物
回収装置２８を接続する。この場合は粗粉室９側（１実
施例を示す図面上では粗粉シュート２４の途中）に空気
取入口２７を設ける。If necessary, a net product recovery device 28 is connected to a lower portion thereof. In this case, an air inlet 27 is provided on the coarse powder chamber 9 side (in the middle of the coarse powder chute 24 in the drawing showing one embodiment).
【００１２】微粉室７の上部の本体ケーシング１には、
バグフィルター１６を内蔵し、かつ、空気吸引ノズル１
５を設けたバグフィルターケース１４を接続している。
又、このバグフィルター１６には、必要に応じてバグフ
ィルター払い落とし機構を取り付けて、バグフィルター
の目詰まり防止を図り長時間の連続運転を可能としても
良い。このバグフィルター払い落とし機構として、例え
ば、振動式払い落とし機１７ａ、又は、バグフィルター
の長さ分だけ移動可能なリング構造でわずかなエアース
リットから逆洗ジェットエアーを円筒スクリーンの方へ
噴射する方式の払い落とし機１７ｂ、などが用いられ
る。In the main body casing 1 above the fine powder chamber 7,
Built-in bag filter 16 and air suction nozzle 1
5 is connected to the bag filter case 14.
The bag filter 16 may be provided with a mechanism for removing the bag filter as necessary, to prevent clogging of the bag filter and enable continuous operation for a long time. As the bag filter removing mechanism, for example, a vibration type removing machine 17a or a method of injecting backwash jet air toward a cylindrical screen from a slight air slit with a ring structure movable by the length of the bag filter. Is used.
【００１３】なお、前記バグフィルタケース１４は微粉
室７の上部中央よりやや粗粉出口２３側寄りに垂直状に
設けられるが、この設置位置は必要に応じて適宜選択さ
れる。例えば、微粉室７の周側、又は微粉シュート２０
或いは網下産物回収装置２１のケースなどに設けられる
が、この場合、該バグフィルタケース１４を斜め上向き
に設けると、自重により落下する浮遊微粉を円滑に網下
産物として回収できる。The bag filter case 14 is provided vertically in a position slightly closer to the coarse powder outlet 23 than the center of the upper part of the fine powder chamber 7, and its installation position is appropriately selected as required. For example, the peripheral side of the fine powder chamber 7 or the fine powder chute 20
Alternatively, the bag filter case 14 is provided in a case of the under-net product collection device 21 or the like. In this case, if the bag filter case 14 is provided obliquely upward, the floating fine powder falling by its own weight can be smoothly collected as an under-net product.
【００１４】又、原料入口６側の側板１８には、原料供
給シュート２６を設けて、これに気密性のある原料供給
装置２５を接続しても良い。この原料供給装置として、
例えば、スクリューフィーダ、ロータバルブ等が用いら
れる。A raw material supply chute 26 may be provided on the side plate 18 on the raw material inlet 6 side, and an airtight raw material supply device 25 may be connected thereto. As this raw material supply device,
For example, a screw feeder, a rotor valve, or the like is used.
【００１５】次に本実施例の作動に付いて説明する。モ
ーターを駆動して回転軸３を回し、回転撹拌翼８を回転
させる。この状態に於いて、原料供給装置２５から原料
供給シュート２６を介して原料入口６へ細粒状の原料Ｍ
を投入すると、該原料Ｍは円筒スクリーン１０内に落下
し、回転撹拌翼８により撹拌される。Next, the operation of this embodiment will be described. The motor is driven to rotate the rotating shaft 3 to rotate the rotary stirring blade 8. In this state, the fine-grained raw material M is fed from the raw material supply device 25 to the raw material inlet 6 through the raw material supply chute 26.
, The raw material M falls into the cylindrical screen 10 and is stirred by the rotary stirring blade 8.
【００１６】そして、該原料Ｍは円筒スクリーン１０の
内面に押し付けられながら回転し、粗粉出口２３の方向
へ移動する。その為、微粉ａは網目を通り微粉室７に排
出されるとともに、微粉排出シュート２０内に落下し、
網下産物回収装置２１を得て機外へ取り出される。又、
網目を通らない他の原料は粗粉ｂとなって粗粉出口２３
から粗粉室９に排出されるとともに、粗粉排出シュート
２４から網上産物として機外へ取り出される。The raw material M rotates while being pressed against the inner surface of the cylindrical screen 10 and moves toward the coarse powder outlet 23. Therefore, the fine powder a is discharged through the mesh into the fine powder chamber 7 and falls into the fine powder discharge chute 20,
The net product recovery device 21 is obtained and taken out of the machine. or,
Other raw materials that do not pass through the mesh become coarse powder b and coarse powder outlet 23
From the coarse powder chamber 9 and from the coarse powder discharge chute 24 as net products.
【００１７】この時、図示しない空気吸引装置が駆動し
ているので、吸引ノズル１５は浮遊微粉誘導空気Ａを吸
引している。この空気は主として粗粉室９の方向から吸
引されて円筒スクリーン１０内に流入し、浮遊微粉ｃを
巻き込みながら網目を通って微粉室７に入りバグフィタ
ケース１４に流れ込む。そして、該微粉誘導空気中の浮
遊微粉Ｃはバグフィルター１６により空気と分離され捕
集される。即ち、上述したような粗粉ｂの方へ流れてし
まう浮遊微粉ｃは該バグフィルター１６で捕集され微粉
室７側へ戻されるので、篩分効率を上げ性能を高める事
が出来る。At this time, since the air suction device (not shown) is driven, the suction nozzle 15 is sucking the air A for guiding the floating fine powder. This air is mainly sucked from the direction of the coarse powder chamber 9 and flows into the cylindrical screen 10. The air enters the fine powder chamber 7 through the mesh and flows into the bag filter case 14 while involving the floating fine powder c. Then, the floating fine powder C in the fine powder induction air is separated from the air by the bag filter 16 and collected. That is, the floating fine powder c flowing toward the coarse powder b as described above is collected by the bag filter 16 and returned to the fine powder chamber 7, so that the sieving efficiency can be increased and the performance can be improved.
【００１８】なお、該空気Ａは必ずしも粗粉室９側から
吸引する必要はなく、他の方向、例えば、原料入口６の
方向から吸引しても良いことは勿論である。It is needless to say that the air A is not necessarily sucked from the coarse powder chamber 9 side, but may be sucked from another direction, for example, from the direction of the raw material inlet 6.
【００１９】本実施例の一例を示す図面上では、網下産
物回収装置２１を微粉排出シュート２０に、網上産物回
収装置２８を粗粉排出シュート２４に、又、原料供給装
置２５を原料供給シュート２６に、夫々直に接続した
が、それら各装置をそれぞれ対応する各シュートに脱着
可能なようにフランジを介して接続したり、或いは、こ
れらの各箇所で気密保持する為に、これらの各接続箇所
に気密保持装置、例えば、ロータリバルブ、二重仕切弁
等、を介して接続しても良い。In the drawing showing an example of this embodiment, the under-net product recovery unit 21 is supplied to the fine powder discharge chute 20, the on-net product recovery unit 28 is supplied to the coarse powder discharge chute 24, and the raw material supply unit 25 is supplied to the raw material supply chute. Each of the devices was directly connected to the chute 26, but each device was connected to a corresponding chute via a flange so as to be detachable, or each of these devices was airtightly maintained at each of these locations. The connection point may be connected via an airtight holding device, for example, a rotary valve, a double gate valve, or the like.
【００２０】本発明の実験例について説明する。この実
験例で用いた分級機は、本実施例の一例を示す図１の分
級機と同じ構成を示すＴＳ２５０×２００型円筒式スク
リーン分級機であり、円筒スクリーンの大きさ＝直径×
長さ＝Φ２５０mm×２００mm回転撹拌翼＝６枚、主軸回
転数＝８００rpmに形成されている。前記分級機の空気
吸引装置で空気吸引ノズルからバグフィルター（バグフ
ィルターの面積＝０.１５m2）を通して毎分０.５Ｎm3の
空気を吸引しながら、以下の組成成分を有する微粉砕さ
れたトナーを有害不要な粗粉を除去する為に、網目７０
μの分級スクリーンを用いて毎時間２５０ｋｇｆを篩い
分けた。An experimental example of the present invention will be described. The classifier used in this experimental example is a TS250 × 200 type cylindrical screen classifier having the same configuration as the classifier of FIG. 1 showing an example of the present embodiment, and the size of the cylindrical screen = diameter ×
Length = Φ250 mm × 200 mm Rotary stirring blade = 6 sheets, main shaft rotation speed = 800 rpm. Finely pulverized toner having the following composition components while sucking air of 0.5 Nm 3 / min through a bag filter (bag filter area = 0.15 m 2 ) from an air suction nozzle by the air suction device of the classifier. Mesh 70 to remove harmful and unnecessary coarse powder.
250 kgf was sieved every hour using a classification screen of μ.
【００２１】組成成分はスチレンアルクリエート共重合
樹脂＝１００部、カーボンブラック＝６部、低分子量ポ
リプレンビスコール５５０９＝１部、帯電制御剤４級ア
ンモニウム塩＝２部 粒度は殆どが２０μ以下、中位径
ｄ50＝８〜１０μであるが、中には７０μ以上の有害不
要な粗粉が含まれている。The composition components are styrene acrylate copolymer resin = 100 parts, carbon black = 6 parts, low molecular weight polypropylene biscol 5509 = 1 part, charge control agent quaternary ammonium salt = 2 parts. The median diameter d50 is 8 to 10 µm, and contains harmful and unnecessary coarse powder of 70 µm or more.
【００２２】実験の結果、篩分（網下）効率は９９.５
％以上であった。As a result of the experiment, the sieving (under the net) efficiency was 99.5.
% Or more.
【００２３】従来のＴＳ２５０×２００型円筒式スクリ
ーン分級機（円筒スクリーンの大きさ＝直径×長さ＝Φ
２５０mm×２００mm、回転撹拌翼＝６枚、主軸回転数＝
８００ｒｐｍ）を用い、前記実験例と同じ組成成分を有
する同じ粒度のトナーを篩い分けた所、篩分（網下）効
率は８０％であった。即ち、本発明の篩分効率は、従来
例に比べ１９.５％以上向上していることがわかった。Conventional TS250 × 200 type cylindrical screen classifier (size of cylindrical screen = diameter × length = Φ)
250 mm x 200 mm, rotary stirring blades = 6, blade rotation speed =
When the toner having the same composition and the same particle size as the above-mentioned experimental example was sieved using 800 rpm), the sieving (under the net) efficiency was 80%. That is, it was found that the sieving efficiency of the present invention was improved by 19.5% or more as compared with the conventional example.
【００２４】[0024]
【発明の効果】本発明は、微粉室上部に設けたバグフィ
ルターを通して微粉誘導空気を吸引するので、粗粉側へ
流れてしまおうとする浮遊微粉は捕集されて篩下産物へ
戻される。その為、従来例に比べ篩分効率が高くなり性
能が向上する。According to the present invention, since the fine powder induction air is sucked through the bag filter provided at the upper part of the fine powder chamber, the floating fine powder which is going to flow to the coarse powder side is collected and returned to the under-sieved product. Therefore, the sieving efficiency is higher than in the conventional example, and the performance is improved.
【図１】本発明の実施例を示す縦断面である。FIG. 1 is a longitudinal section showing an embodiment of the present invention.
１ 本体ケーシング ３ 回転軸 ６ 原料入口 ７ 微粉室 ８ 回転撹拌翼 ９ 粗粉室 １０ 円筒スクリーン １４ バグフィルターケース １５ 空気吸引ノズル １６ バグフィルター １７ａ 振動式バグフィルター払い落とし機構 １７ｂ 往復運動型リング構造逆洗ゼットエアー方式
バグフィルター払い落とし機構 ２１ 網下産物回収装置 ２３ 粗粉出口 ２５ 原料供給装置 ２７ 空気取入口 ２８ 網上産物回収装置 ａ 微粉 ｂ 粗粉 ｃ 浮遊微粉 Ｍ 粉状原料 Ａ 浮遊微粉誘導空気DESCRIPTION OF SYMBOLS 1 Main body casing 3 Rotating shaft 6 Raw material inlet 7 Fine powder chamber 8 Rotary stirring blade 9 Coarse powder chamber 10 Cylindrical screen 14 Bag filter case 15 Air suction nozzle 16 Bag filter 17a Vibration type bag filter removing mechanism 17b Reciprocating ring structure backwash Z-air type bag filter removal mechanism 21 Under-net product recovery device 23 Coarse powder outlet 25 Raw material supply device 27 Air intake 28 On-net product recovery device a Fine powder b Coarse c Floating fine powder M Powdery raw material A Floating fine powder induction air
─────────────────────────────────────────────────────
────────────────────────────────────────────────── ───
【手続補正書】[Procedure amendment]
【提出日】平成１０年５月２６日[Submission date] May 26, 1998
【手続補正１】[Procedure amendment 1]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】０００３[Correction target item name] 0003
【補正方法】変更[Correction method] Change
【補正内容】[Correction contents]
【０００３】[0003]
【発明が解決しようとする課題】円筒スクリーン分級機
に１００ミクロン、７０ミクロン、或いは５０ミクロン
等の細かな網目の円筒スクリーンを装着して非常に細か
くて軽く、かつ、凝集し易い性質の合成樹脂粉末、粉体
塗料、トナー等を篩い分けようとすると、これらの原料
の内、網下産物となるものでも網目を通過して網下産物
と成らず、高速回転する撹拌翼の起こす風で舞い上がっ
て、投入原料の流れに沿ったり、又は粗粉粒子に付いて
網上を通過して網上産物と成ってしまうものがある。そ
の結果、篩分効率が下がってしまい、性能が落ちてしま
う。A synthetic resin having a very fine, light and easily agglomerated property by mounting a cylindrical screen having a fine mesh of 100 microns, 70 microns or 50 microns on a cylindrical screen classifier. powder, powder coating, and you Wakeyo sieve bets Na chromatography, etc., among these materials, also made of a network under product through the mesh not become net under product, winds cause the stirring blade rotating at high speed There is a product that rises in the air and flows along the flow of the input raw material, or passes through the net with coarse powder particles to form a net product. As a result, the sieving efficiency is reduced, and the performance is reduced.
【手続補正２】[Procedure amendment 2]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】０００５[Correction target item name] 0005
【補正方法】変更[Correction method] Change
【補正内容】[Correction contents]
【０００５】[0005]
【課題を解決するための手段】この発明は、本体ケーシ
ングの微粉室部に、内部にバグフィルターを有するパブ
フィルターケースを設け、このバグフィルターを通し本
体ケーシング内の空気を吸引させることにより、供給原
料の流れに沿ったり、又は粗粉と共に網上を通過して網
上産物と成ってしまう微粉を該バグフィルターで捕集し
て微粉室側へ戻し網下産物として回収する事によって、
上記課題の解決を達成しようとするものである。According to the present invention, a pub filter case having a bag filter therein is provided in a fine powder chamber of a main body casing, and the air in the main body casing is sucked through the bag filter to supply the air. By collecting fine powder along the flow of the raw material or passing through the net together with the coarse powder and becoming a net product by the bag filter, returning to the fine powder chamber side, and collecting it as a net product,
It is an object of the present invention to achieve the above object.
【手続補正３】[Procedure amendment 3]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】０００６[Correction target item name] 0006
【補正方法】変更[Correction method] Change
【補正内容】[Correction contents]
【０００６】[0006]
【発明の実施の形態】原料入口より供給された粉状原料
の内、円筒スクリーンの網目を容易に通過すべき微粉の
あるものは、高速回転する撹拌翼の起こす風に乗って浮
遊している間に原料の流れに沿ったり、或いは、粗粉粒
子と共に網目上を通過して網上産物となってしまう。以
下、これらの微粉を浮遊微粉と呼ぶことにする。前記浮
遊微粉は本体ケーシングの微粉室部に設けたバグフィル
ターケース内のバグフィルターを通して本体ケーシング
内の空気を吸引する事によって、捕集され微粉室側へ戻
され、網下産物として回収出来る。そのため、従来のよ
うに篩分効果が低下し性能が悪くなる事がない。BEST MODE FOR CARRYING OUT THE INVENTION Among the powdery raw materials supplied from the raw material inlet, those having fine powders which should easily pass through a mesh of a cylindrical screen float on the wind generated by a high-speed rotating stirring blade. In the meantime, it passes along the flow of the raw material or passes over the mesh together with the coarse powder particles to become a net product. Hereinafter, these fine powders will be referred to as floating fine powders. The floating fine powder is collected and returned to the fine powder chamber side by sucking air in the main body casing through a bag filter in a bag filter case provided in the fine powder chamber portion of the main casing, and can be collected as a net product. Therefore, the sieving effect is not reduced and the performance is not deteriorated unlike the conventional case.
【手続補正４】[Procedure amendment 4]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】符号の説明[Correction target item name] Explanation of sign
【補正方法】変更[Correction method] Change
【補正内容】[Correction contents]
【符号の説明】 １ 本体ケーシング ３ 回転軸 ６ 原料入口 ７ 微粉室 ８ 回転撹拌翼 ９ 粗粉室 １０ 円筒スクリーン １４ バグフィルターケース １５ 空気吸引ノズル １６ バグフィルター １７ａ 振動式バグフィルター払い落とし機構 １７ｂ 往復運動型リング構造逆洗ジェットエアー方
式バグフィルター払い落とし機構 ２１ 網下産物回収装置 ２３ 粗粉出口 ２５ 原料供給装置 ２７ 空気取入口 ２８ 網上産物回収装置 ａ 微粉 ｂ 粗粉 ｃ 浮遊微粉 Ｍ 粉状原料 Ａ 浮遊微粉誘導空気[Description of Signs] 1 Main body casing 3 Rotating shaft 6 Raw material inlet 7 Fine powder chamber 8 Rotary stirring blade 9 Coarse powder chamber 10 Cylindrical screen 14 Bag filter case 15 Air suction nozzle 16 Bag filter 17a Vibrating bag filter removing mechanism 17b Reciprocating motion type ring structure backwash Jefferies Ttoea method baghouse dust removal mechanism 21 mesh under product recovery unit 23 coarse powder outlet 25 material supply device on 27 air inlet 28 network product recovery apparatus a fine b coarse c floating fine M powder raw material A Floating fine powder induction air
Claims (8)
を供給し、該粉状原料を該円筒スクリーン内の回転撹拌
翼により撹拌しながら粗粉出口側方向に移動させ、網目
を通過する微粉を微粉室に排出させるとともに、該網目
を通過出来ない粗粉を粗粉出口から粗紛室に排出せしめ
る円筒スクリーン分級機であって：浮遊微粉誘導空気を
該円筒スクリーン内に導入し前記網目を通過させて前記
微粉室に流入せしめる手段と；該微粉室に流入した浮遊
微粉誘導空気中の微粉を捕集する手段と；を備えている
ことを特徴とする円筒スクリーン分級機。1. A powdery raw material is supplied into a cylindrical screen from a raw material inlet, and the powdery raw material is moved toward a coarse powder outlet side while being stirred by a rotary stirring blade in the cylindrical screen, so that fine powder passing through a mesh is provided. A cylindrical screen classifier for discharging coarse powder that cannot pass through the mesh from the coarse powder outlet into the coarse powder chamber while discharging the fine powder into the fine powder chamber. A cylindrical screen classifier, comprising: means for passing the fine powder into the fine powder chamber to flow into the fine powder chamber; and means for collecting fine powder in the floating fine powder induced air flowing into the fine powder chamber.
を備えその中央部の下面に微粉出口部を有する本体ケー
シングと、前記両端が夫々取付金具の円筒部の外面に接
着されていて前記中心線の方向に緊張して取り付けられ
た合成繊維網製の円筒スクリーンと、この中心線上で高
速回転する回転軸に放射状で且つ該中心線に対し僅かの
捩れ角で取り付けられ、その外縁りと円筒スクリーンの
内面との間に小さな隙間が有る様にした数枚の撹拌回転
翼と、を有し；該円筒スクリーンの一端より内部に供給
された粉状原料を篩い分けながら該円筒スクリーンの網
目より大きな粗粉を前記粗粉出口部より排出するように
した円筒スクリーン分級機において；前記本体ケーシン
グの微粉室に取り付けたバグフイルターケース内のバグ
フィルターを通し空気を吸引して微粉を捕集し且つ捕集
した微粉を前記微粉出口部の方へ戻すようにしたことを
特徴とする円筒スクリーン分級機。2. A main body casing having a raw material inlet at one end, a coarse powder outlet at the other end, and a fine powder outlet at a lower surface of a central portion thereof, and said both ends adhered to an outer surface of a cylindrical portion of a mounting bracket. A cylindrical screen made of a synthetic fiber net, which is attached in tension in the direction of the center line, and which is attached radially to the rotating shaft rotating at high speed on the center line and at a slight twist angle with respect to the center line. A plurality of agitating rotary blades having a small gap between the outer edge and the inner surface of the cylindrical screen; the cylindrical screen being sieved with powdery raw material supplied from one end of the cylindrical screen; In a cylindrical screen classifier configured to discharge coarse powder larger than the screen mesh from the coarse powder outlet portion; through a bag filter in a bag filter case attached to a fine powder chamber of the main body casing. Cylindrical screen classifier, characterized in that the fines are sucked gas were collected and collected fines were then returned towards the pulverized outlet.
ていることを特徴とする請求項２記載の円筒スクリーン
分級機。3. The cylindrical screen classifier according to claim 2, wherein the bag filter has a removing mechanism.
逆洗エアージエット式であることを特徴とする請求項２
記載の円筒スクリーン分級機。4. The cleaning mechanism according to claim 2, wherein the removing mechanism is a vibrator type or a backwash air jet type.
The described cylindrical screen classifier.
粉排出部が微粉回収装置に接続されていることを特徴と
する請求項２記載の円筒スクリーン分級機。5. The cylindrical screen classifier according to claim 2, wherein the raw material inlet is connected to the raw material supply device, and the fine powder discharge portion is connected to the fine powder recovery device.
持機構を備えていることを特徴とする請求項４記載の円
筒スクリーン分級機。6. The cylindrical screen classifier according to claim 4, wherein the raw material supply device and the fine powder recovery device have a security maintaining mechanism.
料を供給し、該粉状原料を該円筒スクリーン内の回転撹
拌翼により撹拌しながら粗粉出口側方向に移動させ、網
目を通過する微粉を微粉室に排出させ、網目を通過出来
ない粗粉を粗粉出口から粗紛室に排出せしめる粉状原料
の分級方法であって；該円筒スクリーン内に浮遊微粉誘
導空気を導入するとともに、該網目を通過させて前記微
粉室に流入せしめる行程と；該微粉室に流入した浮遊微
粉誘導空気中の微粉を捕集する行程と；を備えているこ
とを特徴とする粉状原料の分級方法。7. A powdery raw material is supplied from a raw material supply port into a cylindrical screen, and the powdery raw material is moved toward the coarse powder outlet side while being stirred by a rotary stirring blade in the cylindrical screen, and passes through a mesh. A method for classifying a powdery raw material in which fine powder is discharged into a fine powder chamber and coarse powder that cannot pass through a mesh is discharged from a coarse powder outlet into a coarse powder chamber; introducing floating fine powder induction air into the cylindrical screen; A classifying method for a powdery raw material, comprising: a step of passing through the mesh to flow into the fine-powder chamber; and a step of collecting fine powder in the floating fine-powder-induced air flowing into the fine-powder chamber. .
ルターにより捕集され、微粉室に戻されることを特徴と
する請求項７記載の粉状原料の分級方法。8. The method for classifying a powdery raw material according to claim 7, wherein the floating fine powder in the floating fine powder induction air is collected by a bag filter and returned to the fine powder chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP05198698A JP4058706B2 (en) | 1998-03-04 | 1998-03-04 | Powder raw material classification method and cylindrical screen classifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP05198698A JP4058706B2 (en) | 1998-03-04 | 1998-03-04 | Powder raw material classification method and cylindrical screen classifier |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH11244785A true JPH11244785A (en) | 1999-09-14 |
| JP4058706B2 JP4058706B2 (en) | 2008-03-12 |
Family
ID=12902188
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP05198698A Expired - Fee Related JP4058706B2 (en) | 1998-03-04 | 1998-03-04 | Powder raw material classification method and cylindrical screen classifier |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP4058706B2 (en) |
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