• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The invention relates to pelletizing devices and improves the uniformity of the product’s particle size distribution. The granulating device contains a rotatably mounted perforated hollow cylinder 1 having openings 2 over the entire surface and an intermediate pressure roller 3 eccentrically arranged inside it, made hollow and fixed on two shaft sections, a feeding device 6 for the granulated material mounted between the cylinder and the roller a belt conveyor 7 mounted under the hollow cylinder across to its axis, the inner wall of the hollow cylinder and the outer wall of the pressure roller are provided with engaging the racks 8 and 9 are disposed along the longitudinal axis. The feeding device has slots 10, directed into a gap narrowing in the direction of rotation between the hollow cylinder 1 and the pressure roller 3, the hollow cylinder and the pressure roller 3 are equipped with heating devices. The belt conveyor is equipped with means for cooling. One of the shaft segments is provided with a drive gear, the toothed racks have an involute gearing in cross section. 2 hp ff, 2 ill.
    公开号:SU1671147A3
    申请号:SU884203988
    申请日:1988-01-08
    公开日:1991-08-15
    发明作者:Фрешке Райнхард
    申请人:Зантраде Лтд (Фирма)；
    IPC主号:
    专利说明:

    The invention relates to a device for granulation.
    The purpose of the invention is to increase the uniformity of the particle size distribution of the product.
    In FIG. 1 shows a device for granulation, a cross section: in FIG. 2 is the same, longitudinal section of the device.
    The granulating device comprises a rotatable perforated hollow cylinder 1, having openings 2 over the entire surface, and a pressure roller 3 eccentrically located inside it, made hollow and mounted on two shaft sections 4 and 5, a feeding device 6 for granular material installed between cylinder 1 and roller 3. belt conveyor 7. mounted under the hollow cylinder 1 across to its axis. The inner wall of the hollow cylinder 1 and the outer wall of the pinch roller 3 are provided with engaged gear racks 8 and 9 located along the longitudinal axis. Feeding < '’The device has slots 10 directed into the gap 11 narrowing in the direction of rotation between the hollow cylinder 1 and the pressure roller 3. The hollow cylinder 1 is provided with a heating device 12 and the hollow roller is provided with means for supplying a coolant (not shown). The shaft sections are made with channels 13 and 14 for supplying and removing coolant.
    One of the sections of the shaft is equipped with a drive gear 15.
    Gear racks have an involute cross section in cross section.
    The axis 16 of the pinch roller 3 is located in a common vertical plane 17 with the axis 18 of the cylinder. The holes 2 in the hollow cylinder 1. which can be seen in more detail in FIG. 3 are arranged in axially extending rows and are located at the base of the teeth between two axially extending gear racks 8, which are provided in the interior of the hollow cylinder
    1. In a similar way, the outer surface of the pinch roller 3 is provided with gear racks 9. which are made in accordance with the gear racks 8 of the hollow cylinder 1 and therefore engage with the gear racks 8 in the process of rolling the surface of the pressure roller 3 along the inner wall 19 of the hollow cylinder 1. For For this purpose, the placement was so successful that depending on the diameter of the pinch roller 3 and the internal diameter of the hollow cylinder 1, the axes 18 and 16 are located at an eccentric distance, the gear racks 8 and 9 in the lower rhnosti hollow cylinder 1 are engaged with each other. Below the hollow cylinder 1, a conveyor belt moves, in the example of a cooling tape, a conveyor 7, the direction of movement 20 of which is tangent to the direction of rotation 21 of the hollow cylinder 1 and whose speed is consistent with the speed of rotation of the hollow cylinder 1.
    The device operates as follows.
    In the intermediate space between the pressure roller 3 and the hollow cylinder 1, the feeding device 6 delivers granular material. The supply device 6 is provided with one or more outlet 1I.I or one or more outlet openings, after which the granulated material is purposefully fed into the gap 11 between the pressure roller 3 and the hollow cylinder 1, tapering (gap) in the direction of rotation 21. It becomes apparent that the fluid material supplied in such a way to the area between the gear racks 8 and 9 is first captured by the gear racks 8 of the hollow cylinder 1, and then by means of the intermeshing of the gear racks 8 and 9. forcibly squeezed out through passing in the axis ohm direction rows of holes, namely a zone of the vertical plane 17, where the interspace between the racks 8 and 9, respectively, has the minimum volume. Since this volume is preliminarily determined by the mutual engagement of the gear racks 8 and 9, using the new device it is also possible to determine the volume of the mass forcibly extruded from the holes. Therefore, a new setup can be determined by rolling around with a geometric closure. Therefore, using this new embodiment, volumetric extrusion is provided at high speed. It has been found that the products granulated with the new device are particularly suitable for the pharmaceutical industry. At the same time, the advantage is also achieved that the mass forcibly squeezed out in the region of the vertical plane 17 is not susceptible to undesirable leakage from the holes 2 through a gap 22 formed in the direction of rotation 21 behind the vertical plane 17 and expanding in the direction of rotation. It is in the region of the slit 22 that a certain reduced pressure will be established, leading to the fact that the material possibly still in the openings 2 is for the most part pulled back into the hollow cylinder. Then, with further rotation of the hollow cylinder 1, this material is heated in the upper region and, when it falls onto the surface of the feeding device 6 or onto the trapping element in the form of a plate 23, it is again fed into the gap 11, to which it flows through the catching plate and the feeding device 6. Since using the feeding device 6 it is always possible to supply only as much material as in the region of the vertical plane 17 goes down onto the cooling conveyor belt 7 and hardens in droplets there, it can be prevented s also yield undesirable granulation mass at any places one surface of the hollow cylinder.
    The hollow cylinder 1, with both ends, is inserted into the retaining rings 24, which have such a radial extent that they at least close the end between the gear racks 8 and 9, which mesh with each other. Therefore, in the extrusion region, the granular mass is enclosed between the gear racks 8 and 9 and from the end side between the retaining rings 24. Therefore, it is forced out of the hollow cylinder 1. Since the ring 24 does not cover the entire end of the hollow cylinder 1, through the remaining open part of the end 25 into the hollow cylinder core can enter the supply device 6 in the form of tubes and the tube which can expand inside the diffuser, or already has such a cross-section from the beginning, to provide output slots 10 which in the exemplary embodiment have the form of three relatively wide slots. The part of the feeding device 6 located inside the hollow cylinder 1 with slots 10 extends into the region to the narrowing gap 11. The feeding device 6 can be made in the form of a catching wall for dripping in the upper region from the hollow cylinder into the material. To ensure its return to the gap 11, the feeding device 6 may be provided with a catching plate 23 or from the very beginning it may have the form of such a catching plate.
    The upper region of the hollow cylinder is equipped with a heating device 12, which can be heated by steam or other heating media entering through axially extending pipelines 26. Of course, electrical heating is also possible. This heating device 12 covers almost half of the surface of the hollow cylinder 1. The heating device 12, with the help of the holder 27, is rigidly connected by two lateral supporting columns 28. In the rear end region, when viewed in the direction of rotation of the hollow cylinder 1, it contains a collecting device, for example, in the form retaining rail 29. with which possibly adhering material from the outside of the cylinder is mechanically pressed into the hollow cylinder 1.
    Rings 30 for bearings 31 are also attached to the same columns 28. They are mounted on both sides of the retaining rings 24. The bearing rings 30 are fixed to the columns 28 with a holder 27.
    Finally, using the holder 32 with the possibility of height adjustment on the columns 28, one more bearing ring 33 is fastened, which includes bearings 34 for mounting sections 4 and 5 of the shaft, rigidly connected on both sides to the pressure roller 3 in the form of a hollow cylinder. At the same time, on the right side of the shaft 5, the drive gear 15 is shown for the drive, which is not shown in more detail, which, for example, drives the drive gear 15 through another gear and moves it in the direction of rotation
    21. Due to the engagement of the gear racks 9 with the gear racks 8 of the hollow cylinder 1, the hollow cylinder 1 is driven by the pinch roller 3. Of course, the hollow cylinder could be driven and the pinch roller 3 could be driven from it. With the new drop device 35 a certain volume is fed to the cooling belt of the conveyor 7, which harden there, turning into solid particles, preferably in the form of hemispherical-like lenses.
    Since the pinch roller 3 has a hollow space 36, both sections 4 and 5 of the shaft can also be provided with axial holes, through which, in the direction of arrow 37, a liquid heating medium can be supplied into the hollow space 36 and withdrawn from there again. In this case, the pressure roller 3 can be heated due to this, which can be used to heat the squeezed mass. Of course, in the hollow space 36 or on the walls of the pinch roller 3, it is also possible to provide another heating, for example, using an electric heating wire or other elements. However, it is very simple to heat with a liquid medium, the temperature of which can be controlled in a special circulation circuit.
    The hollow cylinder 1 and the pinch roller 3 or also only rings for gear racks can consist of an elastic material, for example, an elastomeric synthetic material. In this case, it can be obtained in a simple way by extrusion.
    This embodiment gives a great advantage, namely, that between the respective gear racks in the clutch zone, certain volumes are closed and closed by the lateral sides of the teeth, which are then forced out from a number of holes. By choosing the shape of the tooth or choosing the distance between the gear racks that come into engagement with each other, it is therefore possible to pre-set a certain amount of extruded granular droplet. So, for example, by replacing the gauge of gear racks, you can switch to another material or to a different drop size. However, it is also useful to provide the gear racks with an involute engagement cross-section, since by adjusting the distance between the axes of the cylinders, which are located one above the other preferably in the vertical plane, the volume of spaces enclosed between the gear racks can also be changed.
    It is also useful that the granular material with the help of a feeding device extending into the hollow cylinder in the axial direction, for example, in the form of a pipe with outlet slots or outlet openings, is purposefully fed into that zone, which is formed by the gap narrowing in the direction of rotation between the hollow cylinder and the pressing roller. It is this embodiment that makes it possible to deliver relatively viscous material into the space deliberately in the zone in which the outflow of drops should take place. In this way, it is possible to eliminate the disadvantage of uncontrolled and also undesired leakage of material in other places of the perforated hollow cylinder. The material introduced through the supply device can be quantified with the squeezed amount.
    The new device also has the advantage that the gear racks engaged with each other, when the cylinder axes are located in the same vertical plane, contain a minimum volume in the same vertical plane. Therefore, extrusion will be carried out at this point. While the volume enclosed between the gear racks is reduced until the cylinders are arranged in a vertical plane, during the further rotation of both cylinders it again increases. This, at least in a certain area behind the vertical plane, causes a certain suction effect to affect the rows of holes in the outer hollow cylinder. This in turn leads to the fact that, in addition to forcibly extruded material, no other material comes out of the outlet holes in those places where it is undesirable
    权利要求:
    Claims (3)
    [1]
    Claim
    1. A device for granulation, containing perforated hollow cylinder installed with increased rotation. having openings over the entire surface, and a clamping element eccentrically located in it, fixed on two sections of the shaft, a feeding device for granular material, installed between the cylinder and the element, a belt conveyor installed under the hollow cylinder across its axis. moreover, the inner wall of the hollow cylinder and the outer wall of the clamping element are provided with engaged gear racks. located along the longitudinal axis, characterized in that, in order to increase the uniformity of the particle size distribution of the product, the clamping element is made in the form of a hollow roller, the feeding device has slots directed to the gap between the hollow cylinder and the pressure roller narrowing in the direction of rotation, the hollow cylinder and the roller are equipped heating devices and the conveyor belt is equipped with a means for cooling.
    [2]
    2. The device according to claim 1, characterized in that one of the segments of the shaft is provided with a drive gear.
    [3]
    3. The device according to π, π, 1 and 2, characterized in that the cross-section of the gear racks has the form of an involute.
    Redacted Oh Arrogant
    类似技术:
    公开号 | 公开日 | 专利标题
    SU1671147A3|1991-08-15|Granulating device
    US4279579A|1981-07-21|Extrusion apparatus
    SU1268099A3|1986-10-30|Device for extruding fluent materials
    RU1823796C|1993-06-23|Method of pelletizing
    CA1223416A|1987-06-30|Method and apparatus for extruding thermoplasticmaterial
    US3243850A|1966-04-05|Apparatus for the production of corrugated tubes
    RU2084277C1|1997-07-20|Tablet former
    KR820001942B1|1982-10-21|Rotary processor
    KR100228832B1|1999-11-01|Extrusion apparatus having a nozzle-headed drum
    JPH11276877A|1999-10-12|Dropping molding and apparatus therefor
    DE920980C|1954-12-06|Method and device for pressing out thread-forming materials
    DE19700028C2|2002-08-08|Device for the continuous production of flexible plastic corrugated pipes in corrugated pipe forming machines
    CA2414096A1|2002-01-17|Melt bleeder extruder
    DE2265520C2|1982-09-30|Granulating device for the production of pellets from thermoplastic material
    CN86100723A|1987-02-25|The equipment of extruding flowable substance
    DE3139024A1|1982-05-13|Screw for screw extruders or injection moulding machines
    DE2941802A1|1981-04-30|Granulation of molten polymer material - by melting material in inner stationary drum, and flowing it out of holes in outer rotating drum
    RU2292944C2|2007-02-10|Device for extrusion of the fluid substances
    EP0477164B1|1993-08-04|Device for portioned delivery of free-flowing materials
    CA2351504C|2008-08-12|Arrangement in connection with cooling equipment for cooling billets
    DE3209747C2|1986-02-27|Device for the production of granules from a melt
    JPH0811176B2|1996-02-07|Rotating cylinder type processing equipment
    EP0448865B1|1995-03-22|Rotating cylindrical thermal treatment apparatus
    CA1257219A|1989-07-11|Device for the production of solidified meltings
    US4203845A|1980-05-20|Filter press
    同族专利:
    公开号 | 公开日
    IN166203B|1990-03-31|
    AT56661T|1990-10-15|
    KR950010070B1|1995-09-06|
    AU592187B2|1990-01-04|
    EP0244849B1|1990-09-19|
    CA1262516A|1989-10-31|
    JPH01500093A|1989-01-19|
    JPH0687965B2|1994-11-09|
    DE3615677A1|1987-11-19|
    WO1987006880A1|1987-11-19|
    KR880701177A|1988-07-26|
    US4963084A|1990-10-16|
    DE3615677C2|1988-03-24|
    DE3765001D1|1990-10-25|
    IN170822B|1992-05-23|
    GR3001025T3|1991-12-30|
    ES2017475B3|1991-02-16|
    EP0244849A1|1987-11-11|
    AU7357087A|1987-12-01|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US1804283A|1930-09-29|1931-05-05|Sizer Albert William|Molding machine|
    DE570100C|1932-01-28|1933-02-11|Albert William Sizer|Two-roller molding machine for the production of food cones|
    GB455733A|1935-10-01|1936-10-27|George Porteus|Improvements in or relating to machines or apparatus for the production of cattle food, poultry food and the like in granular or pellet form|
    US2063404A|1936-06-20|1936-12-08|John L Selman|Combination feed sizer and cutter|
    US2295838A|1937-04-17|1942-09-15|William K Booth|Pellet mill|
    US2234595A|1938-04-11|1941-03-11|Potato Corp Of Idaho|Extruding device|
    US3234894A|1962-03-26|1966-02-15|Charles H Dechert|Forage crop pelleter|
    DE1454887A1|1963-12-30|1969-02-06|Ludwig Wittrock|Device for radial evaporation of plastic and powdery masses, in particular thermoplastics|
    US3354844A|1964-02-21|1967-11-28|Deere & Co|Wafering machine die and rotor structure|
    DE1237540B|1964-12-15|1967-03-30|Wolfen Filmfab Veb|Device for granulating moist pastes|
    GB1169704A|1965-12-14|1969-11-05|Maurice Wooding|Pellet Machine Die|
    EP0012192B1|1978-12-08|1983-01-12|Santrade Ltd.|Device for extruding fluid masses from a container|
    DE2853054C3|1978-12-08|1982-09-09|Santrade Ltd., 6002 Luzern|Device for pressing out flowable masses|
    DE2941802C2|1979-10-16|1983-01-27|Santrade Ltd., 6002 Luzern|Device for pressing out flowable masses|
    NL8204241A|1982-11-02|1984-06-01|Commanditaire Vennootschap Bur|Pressing pellets from solids-based paste - by rotating toothed pressure member meshing with rotary die having orifices in tooth valleys|
    JPH03160B2|1984-05-07|1991-01-07|Kyokuto Kaihatsu Kogyo Co|
    DE3421625C2|1984-06-09|1986-09-04|Santrade Ltd., Luzern|Device for the production of granules|DE3834785C1|1988-10-12|1989-05-24|Gebr. Kaiser Maschinenfabrik, 4150 Krefeld, De|Apparatus for generating granules or pellets from flowable material|
    EP0477164B1|1990-09-20|1993-08-04|BERNDORF BAND GesmbH|Device for portioned delivery of free-flowing materials|
    DE4032683C3|1990-10-15|1996-06-13|Santrade Ltd|Device for forming drops|
    US5286181A|1991-04-26|1994-02-15|Berndorf Belt Systems, Inc.|Extrusion apparatus having a nozzle-headed drum|
    US5340509A|1992-06-30|1994-08-23|Shell Oil Company|Process for pelletizing ultra high melt flow crystalline polymers and products therefrom|
    DE4422403C1|1994-06-27|1995-06-01|Santrade Ltd|Granulating machine with one toothed roll inside another|
    DE4440875A1|1994-11-16|1996-06-05|Santrade Ltd|Device for the production of pastilles|
    DE19846935C1|1998-10-12|2000-03-02|Kaiser Geb|Assembly to convert semi-liquid hot pourable substance into granules or tablets has heated inlet pipe to rolling extrusion chamber|
    US7276120B2|2003-05-16|2007-10-02|R.J. Reynolds Tobacco Company|Materials and methods for manufacturing cigarettes|
    US7438847B2|2004-03-18|2008-10-21|Velcro Industries B.V.|Delivering resin for forming fastener products|
    US7319838B2|2005-03-02|2008-01-15|Fuji Xerox Co., Ltd.|Fixing unit and image forming apparatus with a peeling member|
    EP2161221A1|2008-09-03|2010-03-10|Helmbach GmbH & Co.KG|Device for manufacturing layer material|
    IT1391567B1|2008-09-04|2012-01-11|Caeb Internat S R L|PELLET PRODUCTION MACHINE|
    CN102079147A|2010-11-22|2011-06-01|天津泰达环保有限公司|High-yield biomass pressing and forming device and method|
    CN103752387B|2014-01-12|2016-02-10|上海红箭自动化设备有限公司|The abrasive dust structure of environment-friendly and energy-efficient eddy mill|
    CN103752388B|2014-01-12|2016-02-10|上海红箭自动化设备有限公司|Environment-friendly and energy-efficient eddy mill|
    RU2580352C2|2014-08-01|2016-04-10|Сергей Сергеевич Титов|Press unit of continuous action for briquetting ground tailings of solid household and loose process wastes "hypocycloid"|
    CN104841534A|2015-06-15|2015-08-19|南通迅达橡塑制造有限公司|Shell powder refining grinding device|
    DE102015212353B3|2015-07-01|2016-07-07|Sandvik Materials Technology Deutschland Gmbh|Apparatus and method for dripping a flowable product|
    CN105664792B|2016-01-21|2018-02-27|遵义双河生物燃料科技有限公司|The granulating chamber of biological granular fuel extruder|
    CN106881175B|2017-04-21|2019-01-22|广州智创知识产权运营有限公司|Produce the grinding device of nano material|
    CN110614147A|2019-10-24|2019-12-27|六安正辉优产机电科技有限公司|A eccentric milling machine for rice processing|
    CN111151195A|2019-12-30|2020-05-15|中冶长天国际工程有限责任公司|Forced granulator adopting three-way cross excitation type disturbance method|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    DE3615677A|DE3615677C2|1986-05-09|1986-05-09|
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