JPH06507111A - Apparatus and method for classifying a gas-solid mixed stream from a convection jet crusher - Google Patents
Apparatus and method for classifying a gas-solid mixed stream from a convection jet crusherInfo
- Publication number
- JPH06507111A JPH06507111A JP4503534A JP50353492A JPH06507111A JP H06507111 A JPH06507111 A JP H06507111A JP 4503534 A JP4503534 A JP 4503534A JP 50353492 A JP50353492 A JP 50353492A JP H06507111 A JPH06507111 A JP H06507111A
- Authority
- JP
- Japan
- Prior art keywords
- gas
- classified
- classifier
- additional
- fraction
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims description 15
- 239000007787 solid Substances 0.000 title description 12
- 239000000463 material Substances 0.000 claims description 8
- 239000002994 raw material Substances 0.000 claims description 8
- 238000002347 injection Methods 0.000 claims description 4
- 239000007924 injection Substances 0.000 claims description 4
- 230000001133 acceleration Effects 0.000 claims description 2
- 238000000227 grinding Methods 0.000 claims description 2
- 239000008247 solid mixture Substances 0.000 claims 3
- 238000000746 purification Methods 0.000 claims 1
- 239000002245 particle Substances 0.000 description 5
- 239000000047 product Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- 238000011010 flushing procedure Methods 0.000 description 3
- 230000003068 static effect Effects 0.000 description 3
- 239000000725 suspension Substances 0.000 description 3
- 238000010902 jet-milling Methods 0.000 description 2
- 239000013590 bulk material Substances 0.000 description 1
- 239000011362 coarse particle Substances 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007717 exclusion Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 238000005243 fluidization Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000011882 ultra-fine particle Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C19/00—Other disintegrating devices or methods
- B02C19/06—Jet mills
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
- B02C23/18—Adding fluid, other than for crushing or disintegrating by fluid energy
- B02C23/20—Adding fluid, other than for crushing or disintegrating by fluid energy after crushing or disintegrating
- B02C23/22—Adding fluid, other than for crushing or disintegrating by fluid energy after crushing or disintegrating with recirculation of material to crushing or disintegrating zone
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
- B02C23/18—Adding fluid, other than for crushing or disintegrating by fluid energy
- B02C23/24—Passing gas through crushing or disintegrating zone
- B02C23/32—Passing gas through crushing or disintegrating zone with return of oversize material to crushing or disintegrating zone
Landscapes
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Combined Means For Separation Of Solids (AREA)
- Disintegrating Or Milling (AREA)
- Separation By Low-Temperature Treatments (AREA)
- Catalysts (AREA)
- Breeding Of Plants And Reproduction By Means Of Culturing (AREA)
- Separating Particles In Gases By Inertia (AREA)
- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるため要約のデータは記録されません。 (57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】 本発明は、追加気流によって加速された気固体温合流が、第１の主として遠心力 に基づく分緩和へと導かれ、その粗分綴物が、粉砕装置へと戻され、精製分級物 （ｆｉｎｅ ｆｒａｃｔｉｏｎ）が前記気流によって支持された状態で第２分緩 和へと導かれる、対流噴射粉砕装置からの気固体温合流を分級する方法と装置と に関する。[Detailed description of the invention] The present invention is characterized in that the gas-solid hot convergence accelerated by the additional airflow is caused mainly by the centrifugal force. The crude fraction is then returned to the crushing device to be purified and refined. (fine fraction) is supported by the airflow and the second fraction is relaxed. A method and device for classifying gas-solid hot flow from a convection injection crushing device, which leads to a Regarding.
本発明昔らによって開発された対流噴射粉砕技術は、主として、静的又は動的分 級装置に関したものである。The convection jet crushing technology developed by the present inventors is mainly used for static or dynamic separation. This is related to class equipment.
これらのタイプの分級装置の作動は、例えば、先願のフィンランド特許公報８１ ７３２及び国際特許公１１１Ｗ０９０１０６１７９に記載されている。The operation of these types of classifiers is described, for example, in earlier Finnish Patent Publication No. 81 No. 732 and International Patent Publication No. 111W090106179.
最終材の過租粒子の数か正確に限定されている場合には、二連又は二連の分級装 置を使用する必要がある。これらの分級装置は、静的、又は動的、あるいはこれ らの組合せのタイプであってよい。静的分級装置とは、可動部祠を全く有さず、 その分級効果が専ら気固体温合流の速度によって生じる遠心力によって達成され る分級装置のことをいう。動式分級装置においては、この分級装置は、分級効果 を高めるために、高速で回転するとともに精製分級物取り出し開口部を包囲する 羽付きロータを有している。If the number of oversized particles in the final material is precisely limited, a double or dual classification device is used. It is necessary to use the These classifiers can be static, dynamic, or It may be a combination of these types. A static classifier does not have any moving parts, The classification effect is achieved exclusively by the centrifugal force generated by the velocity of the gas-solid hot confluence. This refers to a classification device that uses In the dynamic classifier, this classifier has a classification effect. rotates at high speed and surrounds the refined fraction removal opening to increase It has a winged rotor.
第２の、おそらくは次の分級装置の粗分綴物は、通常、製品によっては、そのま ま回収されるか、あるいは、例えは、別の送りスクリュによって、対流噴射粉砕 装置の供給ファンネルへと直接に戻される。後者の解決方法によれば、対流噴射 粉砕装置に過度の応力がががる。というのは、第２分級装置の粗分綴物の一部は 、例えば、容易に分解する繊維束から構成されており、その分解には噴射粉砕装 置における追加の粉砕処理を必要としないからである。The coarse fraction of the second and possibly next classifier is usually or, for example, by a separate feed screw, by convection jet comminution. Directly back into the equipment's supply funnel. According to the latter solution, convective injection Excessive stress is placed on the crushing equipment. This is because some of the coarsely divided items in the second classifier are , for example, consists of fiber bundles that are easily disassembled, and the disintegration requires injection crushing equipment. This is because no additional grinding process is required at the plant.
本発明の課題は、上述した欠点を取り除くことにあり、これは、前記第２分緩和 において生成される粗分綴物が追加気体急流と混合され、これによって生成した 追加気固体温合流が前記第１分線用の供給側へと導かれ、これによってその内部 で大きな速度差が生じて、精製分級物か、前記気流によって支持された状態で次 の処理相へと導かれることを特徴とする方法によって達成された。この解決方法 により、前記第２分級装置の粗分綴物中に存在する可能性のある粒子束を、前記 分級装置の除去装置の下方において高速で流れる前記追加又は加速気流によって 生じるせん断力の作用によって容易に分解することか出来る。これと類似の積極 的効果が、前記対流噴射粉砕装置と前記第１分級装置との間の接続パイプの、前 記追加又は加速気体パイプか終端する所で達成される。The object of the present invention is to eliminate the above-mentioned drawbacks, which is achieved by The coarse fraction produced in the is mixed with an additional gas torrent, thereby producing An additional gas-solid hot stream is directed to the feed side for said first branch, thereby There is a large speed difference between the purified fraction and the next while supported by the air flow. This was achieved by a method characterized in that it leads to a treatment phase of This solution Accordingly, particle bundles that may exist in the coarsely sorted material of the second classification device are By means of said additional or accelerated airflow flowing at high speed below the removal device of the classifier. It can be easily disassembled by the action of shear force generated. Similar aggressiveness The effect of the This is accomplished at the point where the addition or acceleration gas pipe terminates.
本発明のその他の特徴構成は、特許請求の範囲２〜１０から明らかてあろう。Further features of the invention appear from the claims 2 to 10.
次に、本発明を添付の図面を参照しながら詳述する。The invention will now be described in detail with reference to the accompanying drawings.
図１は一方の側からみた本発明装置の一実施例を示し、図２は本発明の第２実施 例を示し、そして図３は本発明の第３実施例を示す。FIG. 1 shows an embodiment of the device according to the invention seen from one side, and FIG. 2 shows a second embodiment of the device according to the invention. By way of example, FIG. 3 shows a third embodiment of the invention.
図１の解決方法において、粉砕されるべき新しい原料か、送りスクリュ１によっ て、粉砕装置の送り装置２へと送られる。この装置２は、いイっゆるバルブ送り タイプのものである。前記バルブ送り装置２がら、前記原料は、加圧バランスタ ンク２ｂへと落ちる。ここから原料はスクリューコンベアによって、均一供給流 として前記装置の流動化チャンバ３へと搬送される。そして、ここでは原料に作 用気体が供給され気固体懸濁物が得られる。このように形成された気固体懸濁物 は、均一流として高速で、分岐装置４を介して前記対流噴射粉砕装置５の一つの 共通点へ向けられた加速ノズル５ａへと流れ、ここで気固体噴流か互いに衝突し 、これによって、固体粒子か超微粒子へと粉砕される。前記対流噴射粉砕装置５ がら、粉砕された気固体懸濁物か、接続バイブロを介して、第１の、主として遠 心力に基づく分級装置７へと流れ、その内部へ、前記気固体懸濁物か主として接 線方向に高速で流入する。可能な限り高い流入速度と最適な固体物率を達成する ために、追加又は加速気体が、別の気体源９から別の気体パイプ８を介して前記 接続バイブロ内へと案内される。前記気体パイプ８は、前記分級装置７から距離 をおき、前記接続バイブロの残りの部分とほぼ平行な状態で、この接続バイブロ の所で終端している。前記分級装置７の周面には、前記分級装置７の前記流入開 口部とは距離をおいて、粗分綴物用の除去ポケット７ａが配設されている。該除 去ポケット７ａの底部には、好ましくはロータ閉鎖装置である閉鎖装置１０か設 けられ、これにより、粗分綴物か前記除去ボケッ）７ａから周期的に除去され、 前記対流噴射粉砕装置の供給ファンネル２ａへと戻される。前記分級装置７の他 端部には、そのほぼ中央に、精製分級物用の除去パイプ１１か配設され、これは 第２分級装置１２のところでほぼ接線方向に終端している。前記第２分級装置１ ２は、前記第１分級装置７と同じタイプのもの、あるいはサイクロンタイプの分 級装置であってもよい。本発明による解決方法は、粗分綴物用の除去装置１３が 、前記追加又は加速気体パイプ８の所で終端し、ここで前記粗分綴物か流入する 別の又は加速気体と高速で混合され、これによって形成された気固体混合相が前 記接続バイブロ内へと案内され、これにより、その内部において大きな速度差か 発生し、これによってせん断力を得て、このせん断力によって前記接続バイブロ の供給流中に含まれている可能性のある粒子束を破壊することにある。前記第２ 分級装置１２の精製分級物は、前記気体流に支持されて、除去パイプ１４を介し て次の処理用へと案内される。In the solution of Figure 1, the new raw material to be crushed is Then, it is sent to the feeder 2 of the crusher. This device 2 is a type of valve feeder. It is of type. In the valve feeding device 2, the raw material is fed to a pressurized balance star. It falls to link 2b. From here, the raw materials are fed in a uniform flow by a screw conveyor. The liquid is then transported to the fluidization chamber 3 of the device. And here, the raw material is A gas is supplied to obtain a gas-solid suspension. The gas-solid suspension thus formed of one of said convection jet crushing devices 5 through a branching device 4 at high speed as a uniform flow. They flow to the accelerating nozzle 5a directed towards a common point, where the gas-solid jets collide with each other. , whereby it is ground into solid particles or ultra-fine particles. The convection jet crushing device 5 The first, mainly distant, Flows into the force-based classifier 7, into which the gas-solid suspension mainly contacts. It flows in the linear direction at high speed. Achieve the highest possible inlet velocity and optimal solids content For this purpose, additional or accelerating gas is supplied from another gas source 9 via another gas pipe 8 to said You will be guided into the connected vibro. The gas pipe 8 is located at a distance from the classifier 7. Place the connected vibro in a position approximately parallel to the rest of the connected vibro. It ends at . The inflow opening of the classification device 7 is provided on the peripheral surface of the classification device 7. A removal pocket 7a for loosely bound items is provided at a distance from the opening. Applicable exclusion A closure device 10, preferably a rotor closure device, is provided at the bottom of the pocket 7a. 7a, thereby periodically removing the coarse binding from said removal blur) 7a; It is returned to the feed funnel 2a of the convection jet milling device. In addition to the classification device 7 At the end, a removal pipe 11 for the purified and classified product is installed approximately in the center. It ends approximately tangentially at the second classifier 12 . Said second classification device 1 2 is the same type as the first classifier 7 or a cyclone type classifier. It may be a grade device. The solution according to the invention is such that the removing device 13 for loosely bound items is , terminates at the additional or accelerating gas pipe 8, into which the bulk material enters. Mixed with another or accelerated gas at high speed, the gas-solid mixed phase thus formed is This leads to a large speed difference inside the connected vibro. This generates a shear force, and this shear force causes the connected vibro The aim is to destroy particle fluxes that may be contained in the feed stream. Said second The purified classified product of the classifier 12 is supported by the gas flow and passed through the removal pipe 14. and will be guided to the next process.
粉砕されるべき原料か最初から乾燥、又は乾燥に近い状態である場合、粉砕され るべき新たな原料は、前記スクリューコンベア１とゲート供給装置１５とによっ て、前記追加又は加速気体パイプ８内の前記気体流へと導かれ、これによって、 粉砕されるべき原料は、粉砕処理以前において既に一度分級されているので、該 供給流内に存在する超微粒子分級物は、前記対流噴射粉砕装置へ入る前にそこか ら除去される。If the raw material to be ground is dry or nearly dry, The new raw material to be supplied is transported by the screw conveyor 1 and the gate supply device 15. into the gas flow in the additional or accelerating gas pipe 8, thereby: The raw material to be pulverized has already been classified once before the pulverization process, so The ultrafine fraction present in the feed stream is transported there before entering the convection jet milling device. removed.
最終製品の過粗粒子の数が正確に制限されている場合には、２連あるいは３連も の分級装置を使用することか必要な場合もある。この場合、前記精製分級物用の 第２分級装置１２の前記除去パイプ１４は、第３分級装置１５の所で接線方向で 終端しており、この第３分級装置の粗分綴物用除去装置１６は、前記第２分級装 置１２の前述の対応する除去装置１３と同様、前述と同じ別の又は加速気体パイ プ８のところて終端している。前記第３分級装置１５の精製分級物は、精製分級 物除去パイプ１７を介して、貯蔵サイロ又は、次の処理用へと導かれる。If the number of overcoarse particles in the final product is precisely limited, double or even triple It may be necessary to use a classifier. In this case, for the purified classified product, The removal pipe 14 of the second classifier 12 is tangentially disposed at the third classifier 15. The coarsely divided article removing device 16 of this third classifying device is connected to the second classifying device. As well as the corresponding removal device 13 described above in the station 12, the same separate or accelerated gas pipe It terminates at step 8. The purified and classified product of the third classifier 15 is purified and classified. Via the material removal pipe 17 it is led to a storage silo or for further processing.
前記第１分級装置７の内部で発生する分級作用を強化するために、前記第１分級 装置７の前記除去ポケット７ａの所に設けられたフラッシング空気ノズルから、 フラッシング気体として、純粋な追加気体を供給してもよい。In order to strengthen the classification action that occurs inside the first classification device 7, the first classification device 7 from a flushing air nozzle provided at said removal pocket 7a of the device 7; Pure additional gas may also be supplied as flushing gas.
このフラッシング空気ノズルへ流入する追加気体は、前記追加又は加速気体源９ から分岐パイプ１８を介して導かれる。The additional gas flowing into this flushing air nozzle is supplied to said additional or accelerating gas source 9. from there through a branch pipe 18.
本発明の分級システムにおいて、できるだけ高い分級効果を達成するために、少 なくとも一つの分級物において、動的分級装置、即ち、前記分級装置７の精製分 級物除去パイプ１１の流入開口部における過粗粒子の除去を防止するロータを備 えた分級装置か使用される。In the classification system of the present invention, in order to achieve as high a classification effect as possible, In at least one classified product, the purified fraction of the dynamic classifier, i.e. the classifier 7 A rotor is provided to prevent removal of excessively coarse particles at the inflow opening of the coarse material removal pipe 11. A special classification device is used.
国際調査報告 国際調査報告international search report international search report
Claims (1)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FI910418 | 1991-01-29 | ||
| FI910418A FI910418A7 (en) | 1991-01-29 | 1991-01-29 | FOERFARANDE OCH ANLAEGGNING FOER KLASSIFICERING AV GAS-FASTSUBSTANSSTROEMMEN FRAON EN MOTSTRAOLSKVARN. |
| PCT/FI1992/000023 WO1992012795A1 (en) | 1991-01-29 | 1992-01-29 | A method and an equipment for classifying a gas-solids flow coming from a counterjet pulverizer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH06507111A true JPH06507111A (en) | 1994-08-11 |
Family
ID=8531806
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4503534A Pending JPH06507111A (en) | 1991-01-29 | 1992-01-29 | Apparatus and method for classifying a gas-solid mixed stream from a convection jet crusher |
Country Status (7)
| Country | Link |
|---|---|
| EP (1) | EP0569420B1 (en) |
| JP (1) | JPH06507111A (en) |
| AT (1) | ATE144165T1 (en) |
| AU (1) | AU1183392A (en) |
| DE (1) | DE69214629D1 (en) |
| FI (1) | FI910418A7 (en) |
| WO (1) | WO1992012795A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007510544A (en) * | 2003-11-11 | 2007-04-26 | グラハム，ウィリアム | Grinding and moisture extraction system and method |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB9819398D0 (en) | 1998-09-04 | 1998-10-28 | Garfield Int Invest Ltd | Pulveriser and method of pulverising |
| US6517015B2 (en) * | 2000-03-21 | 2003-02-11 | Frank F. Rowley, Jr. | Two-stage comminuting and dehydrating system and method |
| US7059550B2 (en) | 2001-02-26 | 2006-06-13 | Power Technologies Investment Ltd. | System and method for pulverizing and extracting moisture |
| US7040557B2 (en) | 2001-02-26 | 2006-05-09 | Power Technologies Investment Ltd. | System and method for pulverizing and extracting moisture |
| US7429008B2 (en) | 2001-02-26 | 2008-09-30 | Power Technologies Investment Ltd. | System and method for pulverizing and extracting moisture |
| US8057739B2 (en) | 2003-11-12 | 2011-11-15 | Pulverdryer Usa, Inc. | Liquid purification system |
| US8448884B2 (en) | 2010-05-10 | 2013-05-28 | Taprogge Gesellschaft Mit Beschraenkter Haftung | Eggshell membrane separation process |
| US9180463B1 (en) * | 2014-08-29 | 2015-11-10 | Joseph R. Fitzgerald | Method for fractionation of dry material using accelerators |
| CN104896496B (en) * | 2015-05-22 | 2017-07-11 | 东方电气集团东方锅炉股份有限公司 | Adjust the device and method of each tube cell powder amount deviation of unit pulverized-coal system |
| CN111318356A (en) * | 2020-04-09 | 2020-06-23 | 文山市华信三七科技有限公司 | Panax notoginseng medicinal material crushing system and use method thereof |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1988001906A1 (en) * | 1986-09-10 | 1988-03-24 | Larox Oy | Method and equipment for the production of particularly finely divided dry powders |
| FI84032C (en) * | 1988-11-28 | 1991-10-10 | Finnpulva Ab Oy | FOERFARANDE OCH ANLAEGGNING FOER CLASSIFICATION AV SYNNERLIGEN FINFOERDELAT MATERIAL. |
-
1991
- 1991-01-29 FI FI910418A patent/FI910418A7/en not_active Application Discontinuation
-
1992
- 1992-01-29 WO PCT/FI1992/000023 patent/WO1992012795A1/en not_active Ceased
- 1992-01-29 EP EP92903563A patent/EP0569420B1/en not_active Expired - Lifetime
- 1992-01-29 DE DE69214629T patent/DE69214629D1/en not_active Expired - Lifetime
- 1992-01-29 AT AT92903563T patent/ATE144165T1/en not_active IP Right Cessation
- 1992-01-29 AU AU11833/92A patent/AU1183392A/en not_active Abandoned
- 1992-01-29 JP JP4503534A patent/JPH06507111A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007510544A (en) * | 2003-11-11 | 2007-04-26 | グラハム，ウィリアム | Grinding and moisture extraction system and method |
Also Published As
| Publication number | Publication date |
|---|---|
| EP0569420B1 (en) | 1996-10-16 |
| FI910418A7 (en) | 1992-07-30 |
| FI910418A0 (en) | 1991-01-29 |
| WO1992012795A1 (en) | 1992-08-06 |
| DE69214629D1 (en) | 1996-11-21 |
| ATE144165T1 (en) | 1996-11-15 |
| EP0569420A1 (en) | 1993-11-18 |
| AU1183392A (en) | 1992-08-27 |
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