EP3579976B1 - Zerkleinerungsvorrichtung - Google Patents

Zerkleinerungsvorrichtung Download PDF

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Publication number
EP3579976B1
EP3579976B1 EP18705127.1A EP18705127A EP3579976B1 EP 3579976 B1 EP3579976 B1 EP 3579976B1 EP 18705127 A EP18705127 A EP 18705127A EP 3579976 B1 EP3579976 B1 EP 3579976B1
Authority
EP
European Patent Office
Prior art keywords
clearing
comminuting
elements
shaft
shredding
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.)
Active
Application number
EP18705127.1A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP3579976A1 (de
Inventor
Torsten BURHORST
Markus Kolbeck
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.)
Vogelsang GmbH and Co KG
Original Assignee
Vogelsang GmbH and Co KG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Vogelsang GmbH and Co KG filed Critical Vogelsang GmbH and Co KG
Priority to PL18705127T priority Critical patent/PL3579976T3/pl
Publication of EP3579976A1 publication Critical patent/EP3579976A1/de
Application granted granted Critical
Publication of EP3579976B1 publication Critical patent/EP3579976B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
    • B02C18/0084—Disintegrating by knives or other cutting or tearing members which chop material into fragments specially adapted for disintegrating garbage, waste or sewage
    • B02C18/0092—Disintegrating by knives or other cutting or tearing members which chop material into fragments specially adapted for disintegrating garbage, waste or sewage for waste water or for garbage
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
    • B02C18/06—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives
    • B02C18/14—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives within horizontal containers
    • B02C18/142—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives within horizontal containers with two or more inter-engaging rotatable cutter assemblies
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
    • B02C18/06—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives
    • B02C18/16—Details
    • B02C18/22—Feed or discharge means
    • B02C18/2225—Feed means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
    • B02C18/06—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives
    • B02C18/16—Details
    • B02C18/22—Feed or discharge means
    • B02C18/2225—Feed means
    • B02C18/2275—Feed means using a rotating arm
    • 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
    • B02C23/08—Separating or sorting of material, associated with crushing or disintegrating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
    • B02C18/0007—Disintegrating by knives or other cutting or tearing members which chop material into fragments specially adapted for disintegrating documents
    • B02C2018/0069—Disintegrating by knives or other cutting or tearing members which chop material into fragments specially adapted for disintegrating documents with stripping devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
    • B02C18/06—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives
    • B02C18/16—Details
    • B02C2018/164—Prevention of jamming and/or overload
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C2201/00—Codes relating to disintegrating devices adapted for specific materials
    • B02C2201/06—Codes relating to disintegrating devices adapted for specific materials for garbage, waste or sewage
    • B02C2201/063—Codes relating to disintegrating devices adapted for specific materials for garbage, waste or sewage for waste water or sewage

Definitions

  • the invention relates to a comminution device for solid-carrying liquids, comprising a housing with an inlet opening, an outlet opening and a housing interior extending from the inlet opening to the outlet opening, a first shredding shaft extending through the housing interior, which is arranged for rotation about a first shredding axis and on which a plurality of first shredding cutting elements axially spaced along the first shredding axis is attached, a second shredding shaft extending through the housing interior, which is arranged for rotation about a second shredding axis and to which a plurality of second shredding cutting elements axially spaced along the second shredding axis is attached, a Drive device for driving the first and second shredding shaft in a rotational movement,
  • Comminution devices of the aforementioned type are used to treat liquids contaminated with solids in such a way that the solids are comminuted and after exiting the outlet opening of the comminution device, the solids contained in the liquid no longer exceed a maximum size.
  • the comminution of the solids is typically carried out by shear and tearing forces that act on the solids when they pass between the comminution cutting elements.
  • the comminution efficiency of such comminution devices depends largely on the fact that gaps and free spaces that result for the liquid to pass through are minimized in such a way that solids above a certain size cannot get from the inlet to the outlet opening without a comminuting effect on these solids is exercised.
  • the consequence of this requirement is that precisely when a high degree of fineness and a small size of the solids emerging from the outlet opening is sought, the cross section remaining for the liquid flow through the comminution device is small and therefore the comminution device represents a high flow resistance.
  • comminution devices are used precisely to be installed in the flow inlet to a pump in order to reliably prevent the pump from being damaged by solids above a certain size. Both with self-priming pumps and with pumps that are not self-priming, an increased flow resistance in the inlet is disadvantageous for the pumping effect and therefore the aim is to make the flow in the inlet to the pump as free of resistance as possible.
  • a shredding device which has two shredding shafts.
  • a screening device with slots is arranged adjacent to the shredding shafts, which are combed through by means of clearing elements.
  • a comminuting device that largely corresponds to this prior art is also off KR 101 636 540 B1 previously known.
  • the invention is based on the object of providing a comminution device while avoiding such disadvantages, which achieves reliable comminution with reduced flow resistance both in liquid flows with a low solid content and high volume throughput and in liquid flows with a high solid content.
  • a sieve device which has a sieve wall.
  • the solids-carrying liquid can flow through this sieve wall from the inlet opening to the outlet opening, the sieve effect preventing solids above a certain size, namely above the sieve mesh size or slot width, from being able to pass the sieve wall.
  • the screen wall therefore reduces the flow resistance through the comminution device by providing additional flow paths for the liquid. This prevents solids above a certain size from flowing through the comminution device on these flow paths.
  • a clearing device In order to keep the sieve wall with the slots contained therein permeable, a clearing device is also provided.
  • the clearing device comprises a plurality of movable clearing elements which are movable relative to the screen wall.
  • the clearing elements extend on at least a section of their movement path through the slots in the sieve wall and can thereby clear solids which partially or completely clog the slots and thereby keep the slots free.
  • the clearing device can be driven actively or passively, for example the movement of the clearing elements can be brought about by the flow effect of the liquid through the comminuting device, this being achieved if necessary by corresponding flow guide elements that are coupled to the clearing device.
  • the clearing device can be coupled to the first and / or the second shredding shaft and driven by the coupling, which brings about a synchronous movement of the clearing elements with the shredding cutting elements.
  • the shredding device can be developed by a clearing drive device which is coupled to the first clearing shaft and sets the first clearing shaft in rotation.
  • a clearing drive device is provided, such as an electric motor, a hydraulic motor or the like, with which the clearing shaft on which the clearing elements are attached is set in rotation so that the clearing elements describe a circular path as a movement path and this circular path at least partially extends through the slots.
  • each clearing element basically follows its own path of movement, for example each clearing element a slot in the Sieve wall is assigned and clears it or that several such clearing elements are provided for clearing a slot and comb through this successively on a matching or different movement path.
  • the clearing drive device comprises hydrodynamically acting fluid guide elements, which are arranged in the interior and are exposed to the flow of liquid flowing through the interior, or an electrically, pneumatically or hydraulically driven motor.
  • the clearing drive device is formed by fluid guiding elements such as guide vanes, which have flowed against them and set in motion by the liquid flow through the interior, causing the rotation of the first clearing shaft.
  • a motor can be provided which generates a movement of the clearing elements which is effected independently of the flow through the interior. This motor can in particular be arranged outside the interior space in order to prevent the motor from being loaded with liquid.
  • a total of two screening devices are provided, which are preferably structurally identical and mirror-symmetrical to a plane that extends centrally between the two shredding shafts in the flow direction and parallel to the shredding shafts through the interior.
  • the second screening device can also be designed with a different geometry, different arrangement or different clearing device than the first screening device.
  • the first and second shredding shafts are arranged between the two sieve devices, so that the liquid flowing through the interior space can take a total of three general liquid flow paths through the interior space, one liquid path goes through the first sieve device, a liquid path goes through the second sieve device and a liquid path goes through the area of the two shredding shafts.
  • the advantage of these two arrangements is that an overall homogeneous flow pattern is achieved at the outlet, that solids can continue to be conveyed from both sides through the first and second clearing device in the direction of the shredding shafts when the slots in the first and second screening device to be cleared.
  • the second clearing shaft is set in rotation by the first clearing drive device or if the second clearing shaft is coupled and set in rotation with a second clearing drive device, which is designed according to the first clearing drive device according to claim 2 or 3.
  • the second clearing device either has a separate clearing drive device, which can be designed in the same way as the first clearing drive device explained above.
  • the second clearing shaft can be coupled to the first clearing drive device and moved, in particular set in rotation, by the first clearing drive device, which causes a synchronous movement and a synchronous drive of the first and second clearing shaft.
  • the axial distance between two axially adjacent first comminuting elements is at least the same, at least twice as large, at least five times as large, or at least ten times as large as the ball passage of the slots.
  • the axial distance between two axially adjacent first comminution elements is at least twice as large, in particular at least five times as large, preferably at least ten times as large as the ball passage of the slots.
  • the axial distance between two adjacent comminuting elements in the axial direction is in a certain minimum size ratio to the ball passage of the slots in the first or the second sieve wall.
  • a ball passage is to be understood here as a dimension that describes the diameter of a circular ball that just barely fits through the slots in the screen wall, i.e. the maximum diameter of a ball that can pass through a slot in the screen wall.
  • the ratio defined in this way ensures, on the one hand, that solids above a certain size cannot pass through the interior space from the inlet to the outlet opening, neither through the screen wall nor through the shredding shafts.
  • the distance between two shredding elements is understood as the axial dimension of the free space in relation to the axis of rotation of the shredding shaft between the one shredding element and the other shredding element, so for example in the case of disc-shaped shredding elements with teeth on the circumference the axial distance between the facing end faces of two axially adjacent disc-shaped cutting elements of a shredding shaft. It should be understood that, during operation, a cutting element of the second shredding shaft engages in the intermediate space formed in this way, which is formed by the axial distance, of two shredding elements of the first shredding shaft and thereby narrows the passage cross section.
  • the free spaces between the cutting elements in the outer areas, in which the first and second cutting elements do not mesh with one another can also be partially or completely filled by fixed elements that are attached to the housing of the shredding device then comb the cutting elements accordingly in order to prevent the passage of solids above a certain size or in total in this outer area.
  • first and second shredding shafts are driven in opposite directions of rotation and that the first and second shredding axes preferably run parallel to and spaced from one another.
  • the two shredding shafts extend parallel to each other, so that the axes of rotation of the two shredding shafts are everywhere at the same distance from each other. This structure can in particular bring about a good and homogeneous shredding performance along the entire length of the shredding shafts.
  • the clearing elements comprise a plurality of curved clearing fingers.
  • the clearing elements are formed by clearing fingers, which are understood to be rod-shaped or wall-shaped elements which extend radially outward from the reamer shaft.
  • the clearing fingers are curved in this case, that is to say, starting from the clearing shaft, they can have a radial and a tangential, possibly also an axial directional component with respect to their direction of extension.
  • the curvature results in a change in the direction of extension over the length of the clearing fingers, which is advantageous for efficient clearing of solids in order to achieve a driving effect, on the other hand, it can prevent the clearing elements from being subjected to too high a load, for example from a stuck solid break in a slot in a sieve wall, because a curved course makes it easier for the clearing elements to give way.
  • the curvature of the clearing fingers forms a convex front side and a rear side of each clearing finger, the front side running ahead of the rear side in relation to the direction of movement of the clearing elements. It is particularly preferred if the curvature of the clearing fingers forms a concave rear side of each clearing finger.
  • the clearing elements have a curvature directed backwards in relation to the direction of movement, so that solids that are in the slots are pressed radially outward by the clearing fingers and the clearing fingers close due to a contact in the event of a deformation acting in the tangential direction the solids can yield radially inwards during movement.
  • this can effect an effective clearing of the slots, in that the clearing fingers could also exert a shearing action with a comminuting action.
  • the curvature of the clearing fingers makes it easier for the clearing fingers to evade solids that are stuck in the slots and thereby avoid damage to the clearing fingers through breakage or plastic deformation, as the clearing elements first touch a possibly stuck solid element with the convex side and then move away elastically from it can deform.
  • a reverse curvature is preferred, in which the clearing fingers consequently form a concave front side and a convex rear side.
  • first clearing elements are designed for a rotational movement about a first clearing axis. Such a rotational movement is preferred for the way in which the clearing shaft is driven and can bring about an efficient clearing of the slots by the clearing elements in that the clearing elements move on a circular path around the axis of rotation of the clearing shaft.
  • the first sieve wall has a curved sieve wall surface which preferably represents a cylindrical surface around the first clearing axis at least in a sieve wall section.
  • the design of the first sieve wall with a curved sieve wall surface promotes the sliding of solids along the sieve wall and consequently prevents the accumulation of solids, as would occur, for example, with a flat sieve wall surface.
  • the curvature of the sieve wall surface can be designed in such a way that the inlet opening of the sieve wall facing the inlet opening is convexly curved, so that solids are prevented from being deposited and collected on the sieve wall due to the possibility of solids sliding along the convexly curved surface.
  • the design with a convex screen wall surface allows the clearing elements to completely sweep through the slots when moving on a circular path and consequently to achieve a clearing effect at every point of the slot. This can be achieved in particular through a cylindrical geometry of the screen wall.
  • the first clearing elements comprise a plurality of first clearing rakes with a plurality of clearing elements, and that the clearing rakes are fastened around a clearing shaft base body extending along a clearing axis.
  • several clearing elements are combined in the form of a clearing rake, which consequently represents a component that can be replaced if damaged and can be manufactured in such a way that the spacing of the clearing elements matches the spacing of the slots and consequently a high level of precision Movement of the clearing elements relative to the slots is achieved.
  • a clearing rake a fork-shaped or rake-shaped design is preferred in which the clearing elements extend from a web connecting the clearing elements on a base.
  • At least two of the clearing rakes are attached to the clearing shaft base body in such a way that the clearing elements of one clearing rake extend at an angle around the clearing axis to the clearing rakes of the second clearing rake.
  • two or more clearing rakes are provided and attached to a clearing shaft, these clearing rakes being at an angle to one another.
  • This embodiment is particularly preferred because this means that the clearing elements do not cross all the slots at the same time and consequently avoid a high torque occurring in one angle of rotation of the clearing shaft if all clearing elements would cross the slots simultaneously, but rather the clearing elements of the different ones Rake through the slots at an angular offset and therefore through contact with solids in the Spread the torque occurring over a larger angle of rotation and reduce it overall.
  • the clearing elements are attached to a clearing shaft body and at least two clearing elements, preferably one third or half of the clearing elements, in particular all clearing elements, extend from the clearing shaft body at a different angle.
  • either all clearing elements are arranged at a different angle to one another, so that no two clearing elements run parallel to one another in relation to the angle of extension around the clearing axis.
  • FIG. 1 shows a housing interior 10 of a comminuting device according to the invention.
  • the shredding device has a first shredding shaft 11 and a second shredding shaft 12 rotatably mounted within a housing 1 in the housing interior 10.
  • the first shredding shaft 11 and the second shredding shaft 12 have a plurality of shredding cutting elements 110, 120 which are formed on knife disks 111, 112 and axially spaced along a first and a second shredding axis, respectively.
  • Both the first shredding shaft 11 and the second shredding shaft 12 consist of several cutter disks 111, 112.
  • the interior of the housing has a shredding chamber which comprises an inlet and an outlet opening through which solids or liquids laden with solids can be fed to the shredding chamber or . can be deducted from it.
  • the shredding shafts 11, 12 extend into the shredding space.
  • the two shredding shafts 11, 12 rotate at different speeds, so that with each revolution other shredding cutting elements 110, 120 of adjacent cutter disks 111, 112 of the two shredding shafts 11, 12 come into engagement and a shear effect is achieved between the shredding cutting elements.
  • a gear is arranged in a gear space, which consists of two gear wheels with different numbers of teeth, which are directly attached to the shredding shafts 11, 12 in a torque-proof manner and mesh with one another.
  • a gear space which consists of two gear wheels with different numbers of teeth, which are directly attached to the shredding shafts 11, 12 in a torque-proof manner and mesh with one another.
  • an opposing rotational movement of the two shredding shafts 11, 12 is generated, which with different Running speed.
  • One of the two shredding shafts 11 or 12 is led out of the shredding chamber and can be set in rotation by means of a drive motor. This rotation is transmitted to the other shredding shaft 11, 12 through the transmission.
  • the first shredding shaft 11 rotates about a first shredding axis
  • the second shredding shaft 12 rotates in an opposite direction of rotation about a second shredding axis.
  • the first shredding axis and the second shredding axis run parallel and at a distance from one another
  • each knife disk 111, 112, 8 comminution cutting elements 110, 120 are formed in each case, evenly distributed in the circumferential direction.
  • the shredding cutting elements 110, 120 form helical lines of a thread with a steep pitch along the circumference of each shredding shaft 11, 12.
  • the shredding cutting elements of one shredding shaft form a left-hand thread
  • the shredding cutting elements of the other shredding shaft form a right-hand thread.
  • a first screening device 30 is arranged adjacent to the first shredding shaft 11.
  • the first sieve device 30 comprises a first sieve wall 31 which has a curved surface and a plurality of slots 32.
  • a second screening device 40 is arranged adjacent to the second shredding shaft 12.
  • the second screen device 40 comprises a second screen wall 41 which has a curved surface and a plurality of slots 42.
  • the curvature of the first and second screen walls 31, 41 form a concave and a convex side.
  • the convex side is formed on the inlet side and the concave side on the outlet side.
  • FIG. 2 shows a housing interior 10 of a comminuting device according to the invention with screened out sieve devices 30, 40.
  • a first clearing device 50 Adjacent to the first comminuting shaft 11, a first clearing device 50 is formed.
  • the first clearing device 50 comprises three clearing rakes 51 ac, which are fastened to a first clearing shaft base body 53.
  • Each clearing rake comprises a plurality of curved clearing elements 52 in the form of curved clearing fingers.
  • a second clearing device 60 is formed adjacent to the second shredding shaft 12.
  • the second clearing device 60 comprises three clearing rakes 61a-c which are fastened to a second clearing shaft base body 63.
  • a clearing rake comprises a plurality of curved clearing elements 52 in the form of curved clearing fingers.
  • the broaching shaft body of the first Reamer 50 is coupled to a reamer drive device to set the first reamer shaft in rotation.
  • the broaching shaft main body of the second broaching device 60 is
  • the curvature of the clearing elements 52, 62 form a convex front and a concave rear.
  • the convex front runs forward in relation to the direction of movement of the clearing elements 52, 62 of the rear.
  • the clearing elements 52, 62 are designed for a rotational movement about a respective clearing axis.
  • the broaching rakes 51 ac, 61 ac are attached to the broaching shaft base body extending along a broaching axis.
  • the clearing rakes 51 ac of the first clearing device 50 are attached to the clearing shaft base body in such a way that the clearing elements 52 of the first clearing rake 51a are at an angle of 120 ° to the clearing elements of the second clearing rake 51b and at an angle of 120 ° to the clearing elements of the third clearing rake 51c stretch.
  • the clearing rakes 61 of the second clearing device 60 are attached to the respective clearing shaft base body in such a way that the clearing elements 62 of the first clearing rake 61a extend at an angle to the clearing elements of the second clearing rake 61b or at an angle to the clearing elements of the third clearing rake 61c.
  • the clearing rakes of the clearing elements 52, 62 therefore extend at angles different from one another from the respective clearing shaft base body.
  • Figure 3 shows a housing interior 10 of a comminution device according to the invention with a first sieve device 30 and a second sieve device 40 as well as a first clearing device 50 and a second clearing device 60.
  • the sieving devices 30, 40 each with a sieve wall 31, 41 have a plurality of slots 32, 42.
  • the first and second shredding shafts 11, 12 are formed between the first screening device 30 and the second screening device 40.
  • the first clearing device 50 comprises three clearing rakes 51 ac with a plurality of clearing elements 52, which, starting from a first clearing shaft arranged on a downstream side of the first screen wall 31, extend through the plurality of slots 32.
  • the second clearing device comprises three clearing rakes 61 ac with a plurality of clearing elements 62, which, starting from a second clearing shaft arranged on a downstream side of the second screen wall 41, extend through the plurality of slots 42.
  • the curved clearing elements or clearing fingers 52, 62 run through the respective slots 32, 42 of the respective sieving device 30, 40.
  • the clearing fingers 52, 62 exit the respective sieving device 30, 40 from the inside to the outside, foreign matter on the outside of the screening device 30, 40 is actively conveyed in the direction of the first shredding shaft 11 and the second shredding shaft 12.
  • the width of the clearing fingers 52, 62 is adapted to the width of the slot and ensures continuous cleaning of the slots 32, 42 of the sieve device 30, 40 from the inside to the outside.
  • the sieve device 30, 40 is freely accessible on the outlet side.
  • the clearing fingers 52, 62 are designed in such a way that they run through the slots 32, 42 without contact.
  • Figure 4a shows a side view of the Figure 3 .
  • Figure 4b shows one along line A in Figure 4a sectional top view of the comminuting device according to the invention.
  • the plan view shows a first shredding shaft 11 and a second shredding shaft 12, a first sieving device 30 and a second sieving device 40 and a first clearing device 50 and a second clearing device 60.
  • the figure shows two cutter disks 111, 112 of the construction according to the invention.
  • both cutter disks 111, 112 have an axial longitudinal bore 121, 122, which is used to be able to slide the cutter disks 111, 112 onto the respective shredding shaft 11, 12.
  • Each cutter disk 111, 112 has a total of eight comminuting cutting elements 110, 120 in the form of cutting teeth, evenly distributed in the circumferential direction.
  • the first screening device 30 is formed with a first screen wall 31, which has a curved surface.
  • the second sieve device 40 is formed with a second sieve wall 41, which has a curved surface.
  • the curvature of the first screen wall 31 and the curvature of the second screen wall 41 are designed as a mirror image of a center plane B.
  • a clearing device 50, 60 is formed in each case behind the sieve devices 30, 40 in the flow direction C.
  • the clearing devices 50, 60 each have an axial longitudinal bore 123, 124, which serves to be able to push the respective clearing device 50, 60 onto the respective clearing shaft.
  • each clearing device 50, 60 has a total of three clearing rakes 52 ac, 62 ac.
  • the configuration of the curvature of the clearing rake of the first clearing device 50 in the opposite direction to the curvature of the clearing rake of the second clearing device 60 ensures that foreign substances are withdrawn in the direction of the first shredding shaft 11 and the second shredding shaft 12.

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  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Environmental & Geological Engineering (AREA)
  • Crushing And Pulverization Processes (AREA)
  • Disintegrating Or Milling (AREA)
  • Separation Of Solids By Using Liquids Or Pneumatic Power (AREA)
  • Apparatuses For Bulk Treatment Of Fruits And Vegetables And Apparatuses For Preparing Feeds (AREA)
  • Extraction Or Liquid Replacement (AREA)
EP18705127.1A 2017-02-09 2018-02-09 Zerkleinerungsvorrichtung Active EP3579976B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL18705127T PL3579976T3 (pl) 2017-02-09 2018-02-09 Urządzenie rozdrabniające

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE202017100714.6U DE202017100714U1 (de) 2017-02-09 2017-02-09 Zerkleinerungsvorrichtung
PCT/EP2018/053270 WO2018146247A1 (de) 2017-02-09 2018-02-09 Zerkleinerungsvorrichtung

Publications (2)

Publication Number Publication Date
EP3579976A1 EP3579976A1 (de) 2019-12-18
EP3579976B1 true EP3579976B1 (de) 2020-12-09

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Family Applications (1)

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EP18705127.1A Active EP3579976B1 (de) 2017-02-09 2018-02-09 Zerkleinerungsvorrichtung

Country Status (11)

Country Link
US (1) US11203020B2 (ja)
EP (1) EP3579976B1 (ja)
JP (1) JP6923662B2 (ja)
CN (1) CN110520218B (ja)
BR (1) BR112019016304A2 (ja)
DE (1) DE202017100714U1 (ja)
DK (1) DK3579976T3 (ja)
ES (1) ES2858434T3 (ja)
MX (1) MX2019009343A (ja)
PL (1) PL3579976T3 (ja)
WO (1) WO2018146247A1 (ja)

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CN110523753A (zh) * 2019-09-27 2019-12-03 铜川安泰再生资源回收利用有限公司 一种高速发酵机及发酵方法
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JP2020506802A (ja) 2020-03-05
BR112019016304A2 (pt) 2020-03-31
WO2018146247A1 (de) 2018-08-16
US11203020B2 (en) 2021-12-21
DK3579976T3 (da) 2021-03-08
CN110520218B (zh) 2021-07-13
JP6923662B2 (ja) 2021-08-25
PL3579976T3 (pl) 2021-06-14
ES2858434T3 (es) 2021-09-30
MX2019009343A (es) 2019-12-11
EP3579976A1 (de) 2019-12-18
DE202017100714U1 (de) 2018-05-11
CN110520218A (zh) 2019-11-29

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