EP0261241B1 - Desintegrateur - Google Patents

Desintegrateur Download PDF

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Publication number
EP0261241B1
EP0261241B1 EP86904458A EP86904458A EP0261241B1 EP 0261241 B1 EP0261241 B1 EP 0261241B1 EP 86904458 A EP86904458 A EP 86904458A EP 86904458 A EP86904458 A EP 86904458A EP 0261241 B1 EP0261241 B1 EP 0261241B1
Authority
EP
European Patent Office
Prior art keywords
classifier
grinding chamber
air
chamber
disintegrator
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 - Lifetime
Application number
EP86904458A
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German (de)
English (en)
Other versions
EP0261241A4 (fr
EP0261241A1 (fr
Inventor
Alexei Nikolaevich Tjumanok
Yaan Voldemarovich Tamm
Andres Iosepovich Saul
Valdeko Villemovich Loopere
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tallinn University of Technology
Original Assignee
Tallinn University of Technology
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Filing date
Publication date
Application filed by Tallinn University of Technology filed Critical Tallinn University of Technology
Priority to AT86904458T priority Critical patent/ATE59314T1/de
Publication of EP0261241A1 publication Critical patent/EP0261241A1/fr
Publication of EP0261241A4 publication Critical patent/EP0261241A4/fr
Application granted granted Critical
Publication of EP0261241B1 publication Critical patent/EP0261241B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B02C13/00—Disintegrating by mills having rotary beater elements ; Hammer mills
    • B02C13/20—Disintegrating by mills having rotary beater elements ; Hammer mills with two or more co-operating rotors
    • B02C13/205—Disintegrating by mills having rotary beater elements ; Hammer mills with two or more co-operating rotors arranged concentrically

Definitions

  • the present invention relates to the shredding technique, more particularly to a disintegrator.
  • a disintegrator is known (see SU copyright certificate No. 1058130 IPK 3 B 02 C 13/00), which contains a housing connected to the grinding chamber, in which rotors with processing rings are arranged, which are set in rotation by means of electric motors. A separation zone is formed between the rotor and the housing, through which air is blown with the aid of pressure and suction blades.
  • a connector for discharging fine material and air into a classifier is connected to the housing and is designed in the form of a cyclone with which the air backflow channel leading into the disintegrator is connected.
  • a bore for the inlet connection is made in the grinding chamber.
  • the material reaches the grinding chamber through the inlet nozzle, where it is crushed by rotors.
  • the fine fraction of the material is blown out and reaches the classifier via the nozzle for fine processing, while the coarse fraction passes through the hole in the grinding chamber into the inlet nozzle for further comminution.
  • the air flows from the classifier via the return flow channel into the disintegrator.
  • This construction is very bulky and takes up a larger industrial area in the horizontal and vertical directions.
  • a lot of energy is used to transport the material.
  • a disintegrator is known (see US-A-4093127, NPK 241-55, 1975) which contains a housing with an inlet and an outlet connection, in which a rotor separator is arranged, which is designed as a drum with inclined separating plates, which are at a certain distance from each other on the circumference of the peripheral drum zone. On the outside of the drum is a channel for collecting and discharging fine material and air.
  • the material and the air come from the inlet nozzle into the rotor separator.
  • the rotor separator is blown through with air.
  • the particles, the size of which is smaller than the gap between the inclined separation plates, are discharged into the collecting duct and discharged via the outlet connection. The material remains in the drum until it is completely shredded.
  • the milling efficiency of the rotor separator is insufficient and, in addition, the entire unit, which includes a rotor separator and an air supply system, is quite bulky.
  • a disintegrator (see US-A-2656988, NPK 241-275, 1953) is known, which contains a housing with an inlet connection, in which a rotor with grinding blades and a rotor drive are accommodated.
  • the rotor is surrounded by a series of impingement and separation blades, which are at a certain distance from each other. The gap size between the blades determines the separation limit of the material.
  • collecting containers for the coarse and fine goods are arranged with respective nozzles for discharging coarse and fine goods.
  • the material destined for comminution reaches the grinding blades of the rotor and is thrown onto the row of inclined impingement blades.
  • the gaps between the blades become blocked by the particles and the removal of fines is made more difficult. Due to the unique material size reduction, the system is suitable for the extraction of relatively large material particles. In order to obtain small particles, the coarser particles have to be re-ground, which complicates the design of the disintegrator, and the gap between the blades must also be reduced, which increases the clogging of the gaps and thus reduces the grinding efficiency.
  • a disintegrator according to the preamble of claim 1 (DE-C - 3490555 or WO 85/02354), which contains a housing and a grinding chamber, which has a cylindrical part with a nozzle for feeding the starting material into the grinding chamber and two side walls owns.
  • the grinding chamber accommodates rotors, which consist of support disks with machining rings and are mounted on shafts of electric motors.
  • a channel for discharging the material from the grinding chamber into the classifier is connected to the grinding chamber, which channel includes a series of inclined plates and is connected to a cyclone-type sifter by means of a channel for fine handling.
  • An air return duct to the disintegrator is connected to the classifier and a duct to the classifier for returning the coarse fraction of the material for renewed comminution.
  • the coarse fraction is fed from the classifier via the channel to the inlet nozzle for further comminution.
  • This disintegrator is not effective enough because all the material after crushing mixed and fed together with the air to the classifier, where the coarse and fine fractions are separated. A considerable amount of energy is used to classify and transport fine fraction and air into the classifier, and air from the classifier back into the disintegrator.
  • the present invention has for its object to provide such a disintegrator, in which the structural design of individual assemblies and the overall arrangement of the same would simplify the construction of the disintegrator, reduce the dimensions of the same and allow the energy expenditure for material comminution to be reduced with the same work output .
  • the disintegrator which has a housing, a grinding chamber, which has a cylindrical part with a nozzle for feeding the starting material into the grinding chamber and two side walls and in which rotors are accommodated, which consist of support disks with machining rings and mounted on shafts of electric motors, a classifier with a series of inclined plates, a return unit for returning the coarse fraction of the material for re-comminution, an air and material fine fraction sifter with which an air backflow channel and a collecting container for the fine fraction of the material are connected ,
  • the inclined plates of the classifier are arranged on the circumference in the peripheral zone of the grinding chamber at a distance from the cylindrical part thereof to form an annular gap, with the aid of which the air and material fine fraction sifter for the task Abe of the starting material is connected, which comprises one of the electric motors and is connected by means of the air return duct with an air distributor, which comprises the other electric motor and is connected to the grinding chamber by means of an annul
  • the inclined classifier plates are designed to be pivotable.
  • the disintegrator For the same purpose, it was found to be advantageous to equip the disintegrator with guide vanes, which are arranged in the annular gap formed by the gap between the last processing ring and the inclined classifier plates, and a pressure fan, which is located in the grinding chamber in the immediate vicinity of the mentioned annular gap is installed and connected to the other rotor.
  • the design of the disintegrator according to the invention makes it possible to reduce its dimensions considerably and to reduce the energy consumption by 10 to 15%.
  • the disintegrator according to the invention contains a housing 1 (FIG. 1), a grinding chamber 2 which has a cylindrical part 3 with a support 4 for feeding a starting material 5 into the grinding chamber 2 and side walls 6.
  • a grinding chamber 2 which has a cylindrical part 3 with a support 4 for feeding a starting material 5 into the grinding chamber 2 and side walls 6.
  • two rotors are arranged, each of which consists of support disks 7 and machining rings 8 and is mounted on shafts 9 and 10 of respective electric motors 11 and 12.
  • the disintegrator contains a classifier, which represents a series of inclined plates 13 (FIGS. 1 and 2) which are located on the circumference in the peripheral zone of the grinding chamber 2 at a certain distance from the cylindrical part 3 thereof, forming an annular gap 14.
  • the grinding chamber 2 is connected via the annular gap 14 to an air and material fine fraction sifter 15, which comprises the electric motor 11 and is located between the housing 1 and a cylinder 16.
  • Guide vanes 17 (FIGS. 1 and 2) are arranged in the annular gap 14.
  • a collection container 18 for the fine fraction of the material is connected to the lower part of the classifier 15, in the lower part of which a unit for discharging the fine fraction of the material, for example in the form of a screw 19 with a drive 20, is provided.
  • the classifier 15 is connected by means of an air backflow channel 21 to an air distributor 22 which comprises the electric motor 12 and is located between the housing 1 and a cylinder 23.
  • the air distributor 22 is connected to the grinding chamber 2 by means of an annular gap 24 (Fig. 1 and 2), which is formed by the gap between the inclined plates 13 of the classifier and the last processing ring 8, which is provided with ventilation blades 25.
  • Guide blades 26 are arranged in the annular gap 24, and a pressure fan 27 is installed in the grinding chamber 2, the blades of which are located in the immediate vicinity of the gap 24 and which is connected to the support disk 7 of the rotor, which is attached to the shaft 10 of the electric motor 12.
  • a suction fan 28 is installed, the blades of which are in the immediate vicinity of the annular gap 14 and which is connected to the support disk 7 of the rotor, which is attached to the shaft 9 of the electric motor 11.
  • the return unit for returning the coarse fraction of the material for renewed comminution is designed as an arcuate guide 29 which is arranged in the immediate vicinity of an opening 30 which is made in the side wall 6 of the grinding chamber 2 and with the aid of which it is connected to the connection piece 4 is.
  • annular barrier 31 is installed between the fan 28 and the grinding chamber 2.
  • the inclined plates 13 of the classifier are designed to be pivotable relative to a joint 32, so that the width of the gap between the plates 13 can thereby be changed.
  • the channel 21 (FIG. 3) is of split design and provided with flanges 34, but the housing 1 of the disintegrator is equipped with a joint unit 35.
  • a slider 36 is provided to regulate the air flow in channel 21.
  • a separator 37 (FIG. 4), which consists of inclined plates, is arranged between the classifier 15 and the collecting container 18 for the fine fraction of the material.
  • the disintegrator works as follows.
  • the starting material 5 passes through the connection piece 4 into the grinding chamber 2, passes through all the processing rings 8 and meets the row of inclined plates 13 (FIG. 2) of the classifier.
  • the shredded material slides on them, the ventilation blades 25 ensuring the uniformity of the flow.
  • the moving layer is blown through with an air stream which is generated by the rotors of the disintegrator, the fans 27, 28 (FIG. 1) and the ventilation blades 25.
  • column 33 (FIG. 2) between the inclined plates 13, together with the air, the fine fraction of the material is also derived, which passes through the annular gap 14 into the classifier 15 (FIG. 1).
  • the material settles on the walls of the classifier 15, slides thereon and arrives in the collecting container 18, from where it is derived by means of the discharge unit.
  • the air passes from the classifier 15 via the channel 21 (FIG. 3) into the distributor 22 (FIG. 1) and through the annular gap 24 into the grinding chamber 2.
  • the coarse fraction of the material slides over the row of inclined plates 13 along the arcuate one Guide 29 and passes through the opening 30 in the nozzle 4 and then in the grinding chamber 2 for renewed comminution.
  • the reduction in energy expenditure is achieved: firstly thanks to the arrangement of the classifier in the grinding chamber 2, in which it comprises the rotors.
  • the mixture density is low in this zone, so the classification takes place without energy expenditure for feeding the material to the classifier; secondly, thanks to the direct connection of the classifier 15 to the grinding chamber 2, which reduces the energy expenditure for the material transport; thirdly, thanks to shorter air movement paths.
  • the design of the disintegrator has become more compact so that it takes up less industrial space in both the horizontal and vertical directions.
  • the invention can be used with advantage for comminuting building materials, in chemical technology, for comminuting grain, in particular for the production of spirit.

Landscapes

  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
  • Massaging Devices (AREA)
  • Combined Means For Separation Of Solids (AREA)
  • Nitrogen And Oxygen Or Sulfur-Condensed Heterocyclic Ring Systems (AREA)
  • Polarising Elements (AREA)
  • Encapsulation Of And Coatings For Semiconductor Or Solid State Devices (AREA)
  • Disintegrating Or Milling (AREA)
  • Crushing And Grinding (AREA)
  • Electrostatic Separation (AREA)

Claims (4)

1. Désintégrateur, qui comprend un carter (1), une chambre de broyage (2) possédant une partie cyindrique (3) munie d'une tubulure (4) pour alimenter un matériau de départ (5) dans la chambre de broyage (2) et deux parois latérales (6) et dans laquelle se trouvent des rotors qui sont constitués de disques porteurs (7) munis de bagues de travail (8) et qui sont montés sur des arbres (9, 10) de moteurs électriques (11, 12), un trieur avec une série de plaques inclinées (13), une unité de recyclage pour recycler la fraction grossière du matériau en vue d'un nouveau broyage, et un séparateur pneumatique (15) destiné à séparer l'air de la fraction fine du matériau et auquel sont reliés un canal de retour d'air (21) et un récipient collecteur (18) pour la fraction fine du matériau, caractérisé en ce que les plaques inclinées (13) du trieur sont disposées sur la circonférence de la zone périphérique de la chambre de broyage (2), à distance de sa partie cylindrique (3) et en formant une fente annulaire (14) à l'aide de laquelle le séparateur pneumatique (15), destiné à séparer l'air de la fraction fine du matériau, est relié à la chambre de broyage (2), le séparateur (15) contenant un des moteurs électriques (11) et étant relié, par l'intermédiaire du canal de retour d'air (21), à un répartiteur d'air (22) qui contient l'autre moteur électrique (12) et qui est relié à la chambre de broyage (2) par une fente annulaire (24) qui est constituée par la fente entre les plaques inclinées (13) du trieur et la dernière bague de travail (8), et en ce que l'unité de recyclage, destinée à recycler la fraction grossière du matériau en vue d'un nouveau broyage, est réalisée sous la forme d'un guidage en courbe (29) qui est disposé au voisinage immédiat d'une ouverture (30) qui est pratiquée dans la paroi latérale (6) de la chambre de broyage (2) et qui relie la chambre de broyage (2) à la tubulure (4) d'alimentation en matériau de départ.
2. Désintégrateur selon la revendication 1, caractérisé en ce que les plaques inclinées (13) du trieur sont réalisées pivotantes.
3. Désintégrateur selon la revendication 1, caractérisé en ce qu'il est équipé de pales directrices (17), qui sont disposées dans la fente annulaire (14) entre les plaques inclinées (13) du trieur et la partie cylindrique (3) de la chambre de broyage (2), et d'une soufflante d'aspiration (28) qui est incorporée dans le séparateur pneumatique (15), destiné à séparer l'air de la fraction fine du matériau, au voisinage immédiat de la fente annulaire précitée (14) et qui est reliée au disque porteur (7) d'un des rotors.
4. Désintégrateur selon la revendication 1, caractérisé en ce qu'il est équipé de pales directrices (26) qui sont disposées dans la fente annulaire (24), qui est constituée par la fente entre la dernière bague de travail (8) et les plaques inclinées (13) du trieur, et d'une soufflante de refoulement (27) qui est incorporée dans la chambre de broyage (2) au voisinage immédiat de la fente annulaire précitée (24) et qui est reliée à l'autre rotor.
EP86904458A 1986-03-21 1986-03-21 Desintegrateur Expired - Lifetime EP0261241B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86904458T ATE59314T1 (de) 1986-03-21 1986-03-21 Desintegrator.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/SU1986/000022 WO1987005534A1 (fr) 1986-03-21 1986-03-21 Desintegrateur

Publications (3)

Publication Number Publication Date
EP0261241A1 EP0261241A1 (fr) 1988-03-30
EP0261241A4 EP0261241A4 (fr) 1989-05-30
EP0261241B1 true EP0261241B1 (fr) 1990-12-27

Family

ID=21616978

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86904458A Expired - Lifetime EP0261241B1 (fr) 1986-03-21 1986-03-21 Desintegrateur

Country Status (6)

Country Link
US (1) US4813619A (fr)
EP (1) EP0261241B1 (fr)
AT (1) ATE59314T1 (fr)
DK (1) DK605687D0 (fr)
NO (1) NO166763C (fr)
WO (1) WO1987005534A1 (fr)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5460444A (en) * 1993-04-28 1995-10-24 Howorka; Franz Apparatus for the treatment of solid, liquid and/or gaseous materials
JPH10370A (ja) * 1996-06-13 1998-01-06 Kansai Matetsuku Kk 粉砕ピン式粉砕機
RU2169617C2 (ru) * 1999-05-12 2001-06-27 Ивановская государственная архитектурно-строительная академия Устройство для измельчения
US7111801B2 (en) * 2001-12-26 2006-09-26 Castronovo Charles A Destroying non-homogeneous loads using zero-clearance cutting systems, double-secondary shredders in zero-clearance cutting systems, and other zero-clearance systems
RU2217470C1 (ru) * 2002-07-30 2003-11-27 Теляшев Эльшад Гумерович Дезинтегратор
FI117094B (fi) * 2003-01-15 2006-06-15 Fractivator Oy Menetelmä orgaanisen jätteen hajottamiseksi
FI117711B (fi) * 2004-10-13 2007-01-31 Fractivator Oy Menetelmä ja laitteisto materiaalien tai materiaaliseosten käsittelemiseksi
PE20100014A1 (es) * 2008-02-13 2010-02-17 Raymond Brian Harrington Destruccion de maleza y semillas de poblaciones voluntarias
FI120733B (fi) * 2008-11-14 2010-02-15 Fractivator Oy Menetelmä ja laite hienojakoisen kalsiumhydroksidin valmistamiseksi
US9463465B2 (en) 2012-09-06 2016-10-11 Charles A. Castronovo Compact high-security destruction machine
KR101780329B1 (ko) * 2015-05-06 2017-09-20 주식회사 케이엔에스컴퍼니 로터-로터 방식 분산유화장치 임펠러 구조 시스템
PL3515176T3 (pl) * 2016-09-23 2022-07-25 Seed Terminator Holdings PTY LTD Wielostopniowy śrutownik młotkowy oraz zawierający go układ przetwarzania pozostałości
US10314232B2 (en) * 2017-06-21 2019-06-11 Cnh Industrial America Llc System and method for destroying seeds in crop residue prior to discharge from agricultural harvester
US12396395B2 (en) * 2018-03-22 2025-08-26 Seed Terminator Holdings PTY LTD Impact mill and a residue processing system incorporating same
US12256675B2 (en) 2019-02-05 2025-03-25 Seed Terminator Holdings PTY LTD Impact processing system and a machine and a method of improving nut or fruit orchard hygiene
WO2020226529A1 (fr) * 2019-05-08 2020-11-12 Илья Александрович СЕМИН Réacteur de désintégration et procédé de désintégration et d'activation de charge initiale
UY38932A (es) 2019-10-25 2021-05-31 Seed Terminator Holdings PTY LTD Cilindro para procesamiento de materiales y sistema de procesamiento de materiales asociado al mismo
CA3297008A1 (en) 2020-02-05 2026-03-02 Seed Terminator Holdings PTY LTD An impact material processing device
CA3170010C (fr) * 2020-03-12 2025-05-20 Tritana Intellectual Property Ltd. Destruction des graines de mauvaises herbes

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1985002354A1 (fr) * 1983-11-25 1985-06-06 Tallinsky Politekhnichesky Institut Installation de desintegration
DE3526794A1 (de) * 1985-07-26 1987-02-05 Tallinsk Polt Inst Desintegrator

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE423775C (de) * 1923-01-08 1926-01-12 Frederick Hippert Aus Schleudermuehle und Sichtvorrichtung bestehende Zerkleinerungsanlage
US1822436A (en) * 1929-09-24 1931-09-08 Smidth & Co As F L Grinding mill
US2656988A (en) * 1948-11-09 1953-10-27 Franklin S Smith Centrifugal milling and insect destroying machine with rotary impeller and annular target
US4093127A (en) * 1975-10-21 1978-06-06 Life Resources Incorporated Disintegrator and separator apparatus
SU938236A1 (ru) * 1980-11-12 1982-06-23 Таллинский Политехнический Институт Дезинтегратор-сепаратор
SU1287362A1 (ru) * 1984-04-23 1987-11-15 Специальное Конструкторско-Технологическое Бюро "Дезинтегратор" Республиканского Объединения "Эстколхозстрой" Дезинтегратор

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1985002354A1 (fr) * 1983-11-25 1985-06-06 Tallinsky Politekhnichesky Institut Installation de desintegration
DE3490555C2 (fr) * 1983-11-25 1988-03-17 Tallinskij Politechniceskij Institut, Reval/Tallin, Su
DE3526794A1 (de) * 1985-07-26 1987-02-05 Tallinsk Polt Inst Desintegrator

Also Published As

Publication number Publication date
DK605687A (da) 1987-11-18
EP0261241A4 (fr) 1989-05-30
EP0261241A1 (fr) 1988-03-30
NO166763B (no) 1991-05-27
US4813619A (en) 1989-03-21
NO874753D0 (no) 1987-11-13
NO166763C (no) 1991-09-04
ATE59314T1 (de) 1991-01-15
NO874753L (no) 1987-11-13
DK605687D0 (da) 1987-11-18
WO1987005534A1 (fr) 1987-09-24

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