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US20190176160A1 - Impact reactor - Google Patents

Impact reactor Download PDF

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Publication number
US20190176160A1
US20190176160A1 US16/327,397 US201716327397A US2019176160A1 US 20190176160 A1 US20190176160 A1 US 20190176160A1 US 201716327397 A US201716327397 A US 201716327397A US 2019176160 A1 US2019176160 A1 US 2019176160A1
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US
United States
Prior art keywords
impact reactor
impact
rotor
suction opening
reactor according
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.)
Abandoned
Application number
US16/327,397
Other languages
English (en)
Inventor
Ralf Schäfer
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.)
Schafer Elektrotechnik U Sondermaschinen GmbH
Schafer Elektrotechnik U Sondermaschinen GmbH
Original Assignee
Schafer Elektrotechnik U Sondermaschinen GmbH
Schafer Elektrotechnik U Sondermaschinen GmbH
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 Schafer Elektrotechnik U Sondermaschinen GmbH, Schafer Elektrotechnik U Sondermaschinen GmbH filed Critical Schafer Elektrotechnik U Sondermaschinen GmbH
Assigned to SCHAFER ELEKTROTECHNIK U. SONDERMASCHINEN GMBH reassignment SCHAFER ELEKTROTECHNIK U. SONDERMASCHINEN GMBH ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: SCHAFER, RALF
Publication of US20190176160A1 publication Critical patent/US20190176160A1/en
Abandoned 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
    • B02C13/14—Disintegrating by mills having rotary beater elements ; Hammer mills with vertical rotor shaft, e.g. combined with sifting 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
    • B02C13/00—Disintegrating by mills having rotary beater elements ; Hammer mills
    • B02C13/13—Disintegrating by mills having rotary beater elements ; Hammer mills with horizontal rotor shaft and combined with sifting devices, e.g. for making powdered fuel
    • 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
    • B02C19/0056—Other disintegrating devices or methods specially adapted for specific materials not otherwise provided for
    • 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
    • B02C23/14—Separating or sorting of material, associated with crushing or disintegrating with more than one separator
    • 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
    • B02C23/16—Separating or sorting of material, associated with crushing or disintegrating with separator defining termination of crushing or disintegrating zone, e.g. screen denying egress of oversize material
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
    • B07B1/46—Constructional details of screens in general; Cleaning or heating of screens
    • B07B1/50—Cleaning
    • 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
    • B02C23/16—Separating or sorting of material, associated with crushing or disintegrating with separator defining termination of crushing or disintegrating zone, e.g. screen denying egress of oversize material
    • B02C2023/165—Screen denying egress of oversize material
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/84—Recycling of batteries or fuel cells

Definitions

  • the invention relates to an impact reactor for comminuting composite materials, comprising a cylindrical casing, in which a rotor provided with impact elements is mounted, wherein the impact reactor is closed by means of a cover on the end face facing away from the rotor, wherein a suction opening is assigned to the cover.
  • Impact reactors are used in order to comminute objects, which are composed of different materials, in such a way as to allow the separation of substances.
  • the objects are comminuted and separated into individual components by impact stress with high momentum transfer by means of rotating impact elements.
  • EP 0 859 693 B1 discloses an impact reactor comprising a cylindrical main body, in which a rotor driven by a drive motor is arranged.
  • the rotor is formed from wear-resistant steel and has replaceable impact elements on its propeller-shaped or blade-shaped ends.
  • the impact reactor ejection openings can be arranged which can be covered with slotted or perforated cover plates so as to be able to achieve a differentiated discharge of comminuted particles in a desired particle size.
  • lithium-ion batteries are problematic.
  • lithium-ion batteries have an active mass which is charged with solvent and is applied to a synthetic material film coated with copper and aluminum.
  • a pulverulent dust is formed from the active mass. This applies particularly when the accumulator batteries are pyrolyzed prior to comminution in an impact reactor.
  • the pulverulent dust cannot be selectively led out of the impact reactor using the known extraction openings arranged in the circumferential area of the impact reactor.
  • the object of the invention is to provide an impact reactor for comminuting composite materials, which allows for pulverulent components to be led out of said impact reactor.
  • the inventive impact reactor for comminuting composite materials comprises a cylindrical casing, in which a rotor provided with impact elements is mounted, wherein the impact reactor is closed by means of a cover on the end face facing away from the rotor, wherein a suction opening is assigned to the cover, wherein a classifying device is assigned to the extraction opening.
  • the classifying device is part of the impact reactor and is assigned directly to the suction opening.
  • the rotor of the impact reactor is arranged in the bottom area of the casing.
  • the cover having the suction opening is arranged on the end face facing away from the rotor so that the suction opening is arranged at the largest possible distance from the rotor.
  • the powder or dust-loaded exhaust air can then be treated.
  • a physical separation method is preferably used.
  • the treatment can be performed for example in a gravity separator or centrifugal separator. In this case, it is particularly possible to use a zigzag separator.
  • the classifying device can be a screen.
  • Screens are classifying devices which are designed in a particularly simple manner and are particularly robust. By selecting the hole diameter or respectively mesh width, it is possible to define the particle sizes to be allowed through.
  • the screen is roller-shaped.
  • a roller-shaped screen has a large screen surface, which is associated with a low pressure loss and a high screen performance.
  • the screen can be arranged both horizontally and vertically in the impact reactor.
  • the screen can be arranged to be able to rotate in the suction opening.
  • a centrifugal force field is formed directly around the screen. This ensures that larger particles cannot pass through the screen, even if they could pass through the holes or meshes.
  • a rotating screen allows particularly fine particles to be separated.
  • the classifying device is designed as an air separator.
  • particles are separated in a gas stream on the basis of their ratio of inertia or respectively gravity to flow resistance. Fine or lightweight particles follow the flow, whereas heavier particles follow the mass force.
  • the classifying device can be formed as a deflection wheel.
  • the deflection wheel has two spaced apart rotor disks having rotor blades arranged between them.
  • the deflection wheel is a specific type of an air separator.
  • the deflection wheel is formed in the form of a ventilator.
  • the air including the comminuted particles flows through the rotating rotor.
  • a momentum transfer takes place between the rotor and incoming particles.
  • the particles are swept into the incoming airflow. Particles, in which the shear force exerted by the airflow is less than the centrifugal force induced by the rotation of the rotor, undergo a change in direction by reason of the momentum transfer of the rotor and are directed back into the impact reactor chamber.
  • the diverted particles are not allowed to pass through the deflection wheel.
  • deflection wheels it is advantageous that they have a large separation effect, in particular for small and lightweight particles. As a result, the particle size of the particles to be allowed to pass through can be set precisely. Furthermore, a deflection wheel is particularly robust. Thus, it can even be used for comminuting abrasive particles.
  • the deflection wheel is designed in such a way to prevent particles from accumulating in the interior of the deflection wheel or on the rotor blades.
  • the rotor blades can be designed in such a way that they are rounded on the outer side.
  • the rotor blades can have a tube, the inner side of which has metal plate strips arranged thereon which contact one another at an edge.
  • the rotor blade is rounded on the outer side and the rotor blade has a triangular basic shape on the inner side.
  • a baffle plate which can be pyramid-shaped is arranged on the bottom plate of the rotor.
  • the classifying device can be designed to separate particles having a pre-selectable particle size. It is particularly advantageous that the particle size can be set depending upon the material to be comminuted and depending upon the desired comminution result. The classifying device can be adjusted in such a way that particles having a predetermined particle size are separated via the suction opening during a comminuting cycle.
  • the classifying device separates particles having a first particle size in a first section and separates particles having a second particle size in a second section.
  • the classifying device is modified during a comminuting cycle in such a way that the classifying device separates particles having a different particle size.
  • Such a modification is particularly suitable/simple in the case of a rotating screen or a deflection wheel.
  • a modification is effected by changing the rotational speed. If the rotational speed increases, the particle size of the particles allowed to pass through the rotating screen or through the deflection wheel is decreased.
  • the modification can also be effected during a comminuting cycle and in an infinitely variable manner.
  • a cleaning apparatus can be allocated to the classifying device.
  • the classifying device can be provided with a device for applying a counter pressure, for example on the side of the suction opening.
  • a device for applying a counter pressure for example on the side of the suction opening.
  • jet nozzles or lances can be provided. These can also protrude into the interior of the classifying device and can trigger a pressure surge for example when a preselected differential pressure is exceeded, said pressure surge effecting cleaning of the classifying device. This prevents the classifying device from becoming clogged.
  • the cleaning medium can be a gas, for example a cooling gas or a hot gas.
  • the cleaning medium can also be a liquid.
  • a supply air opening can be introduced into the impact reactor. This allows a circulating airflow to be produced. As a result, the discharge of particles from the impact reactor is improved. Furthermore, it is possible to impinge an inert gas, such as for example nitrogen, on the impact reactor. This is particularly advantageous when reactive or explosive materials are to be processed in the impact reactor.
  • the supply air opening also allows the temperature of the supply air to be controlled in a particularly simple manner so that for example drying can be performed in the impact reactor. This process is improved once again by a previously performed procedure of drying the supply air.
  • the classifying device can also be provided with a drying device so that the exhaust air provided with particles can be dried. By controlling the temperature of the supply air, it is likewise possible to effect cooling so that the atmosphere within the impact reactor chamber can be cooled by the supply air.
  • the casing can be closed in the region of the rotor. This ensures that the impact reactor has a particularly long service life which is associated with a low maintenance outlay.
  • extraction openings in the form of flaps are provided in the circumferential area of the casing in the region of the rotors. The extraction openings allow for coarse particles, in particular metallic particles, to be removed from the impact reactor.
  • Screens can be assigned to the extraction openings.
  • substance separation can be performed. For example, metallic particles which have achieved a desired degree of comminution can be removed via the screens, whereas larger particles remain in the impact reactor chamber and are further comminuted.
  • a device for exhaust air after-treatment of the exhaust air removed via the suction opening can be assigned to the classifying device.
  • Such exhaust air after-treatment is particularly advantageous when noxious gases, for example reactive gases, are produced by the comminution. Such noxious gases are removed from the exhaust air during the exhaust air after-treatment.
  • a simple and cost-effective exhaust air after-treatment is provided for example by post-combustion of the exhaust air in a combustion chamber. Furthermore, it is possible to perform gas filtration or the like.
  • the inventive method of processing accumulator batteries in an impact reactor allows for that accumulator batteries are fed to the impact reactor and are comminuted in the impact reactor by means of mechanical loading of the rotor provided with impact elements, wherein the dusty parts of the accumulator batteries are removed from the impact reactor via the suction opening.
  • the accumulator batteries can be opened in a first step prior to being fed to the impact reactor.
  • the accumulator batteries can initially be fed to a treatment by pyrolysis, in which volatile or combustible components are removed from the accumulator batteries and wherein the accumulator batteries are subsequently fed to the impact reactor.
  • the inventive method makes it possible to process accumulator batteries for further use, wherein the dusty, particulate components, the so-called black mass or active mass, can be safely discharged from the impact reactor and processed. This is particularly advantageous given the fact that valuable base materials are contained in the black mass or active mass.
  • the method can be conducted in such a way that non-pyrolyzed accumulator batteries are comminuted in the impact reactor.
  • inertization of the impact reactor chamber prevents explosive components of the accumulator batteries from igniting.
  • the impact reactor chamber does not have to undergo inertization.
  • the exhaust air drawn off via the suction opening can be re-treated.
  • the exhaust air after-treatment can be effected in particular by exhaust air post-combustion, in which reactive gases of the exhaust air are converted.
  • the exhaust air after-treatment can take place right after the classifying procedure.
  • a stepwise operation of the classifying device is advantageous, wherein the classifying device is initially adjusted in such a way that solely gaseous components are drawn off from the impact reactor chamber and are fed to the exhaust gas after-treatment procedure and subsequently, the classifying device is adjusted in such a way that dust-like solid particles are discharged from the impact reactor chamber.
  • the classifying device is initially adjusted in such a way that solely gaseous components are drawn off from the impact reactor chamber and are fed to the exhaust gas after-treatment procedure and subsequently, the classifying device is adjusted in such a way that dust-like solid particles are discharged from the impact reactor chamber.
  • initially reactive gases or noxious gases are discharged from the impact reactor chamber. After the dust-like particles have been discharged, only heavier or larger solid particles, predominantly metals, remain in the impact reactor chamber which are discharged via the extraction opening.
  • the inventive method is particularly suitable for processing lithium-ion batteries.
  • alkaline manganese cells, zinc carbon cells or the like can also be fed to the impact reactor.
  • the inventive impact reactor can also be used in an advantageous manner for processing mineral wool.
  • Mineral wool as a waste material is produced for example during manufacture and in construction, for example during renovations or modernizations.
  • mineral wool in this case particularly rock wool, glass wool or ceramic wool, to recycling.
  • a current problem is that the mineral wool can only be transported with limitations by reason of its fiber structure and low density. For example, it is problematic that mineral wool to be processed cannot be transported in a problem-free manner when using the blowing method.
  • the mineral wool to be processed is fed to the impact reactor and is comminuted in the impact reactor by mechanical loading of the rotor provided with impact elements, wherein the comminuted mineral wool is removed from the impact reactor via the suction opening if the particle size of the mineral wool is smaller than a predetermined particle size.
  • the inventive impact reactor is also suitable for processing raw material.
  • the raw material is fed to the impact reactor and is comminuted in the impact reactor by mechanical loading of the rotor provided with impact elements, wherein the comminuted raw material is removed from the impact reactor via the suction opening if the raw material particles are smaller than a predetermined particle size.
  • the inventive impact reactor can also be used for processing wood, matured timber, wood composites, ceramics, GFRP, CFRP, wood compound and composite materials consisting of the aforementioned materials, even if they are in the composite with metal.
  • Metal-metal composites as used for example in catalysts, can also be comminuted.
  • secondary raw materials such as dross, sewage sludge, screenings or ash can be processed in the impact reactor, wherein separation of a dust-like fraction is effected via the suction opening. It is particularly possible by using the impact reactor to produce a particulate fuel surrogate from the aforementioned substances, said fuel surrogate being able to be directed to a dust firing or granulate firing procedure.
  • the impact reactor is suitable for producing a meal-like product which can be removed via the suction opening.
  • the impact reactor is also suitable for comminuting organic associated materials, such as wheat bran or husks which can then be fed more easily and more effectively to a material or energy recycling procedure.
  • FIG. 1 an impact reactor arrangement
  • FIG. 2 a device for pyrolyzing accumulator batteries
  • FIG. 3 a further impact reactor arrangement
  • FIG. 4 an impact reactor arrangement having a feeding device and classifying device
  • FIG. 5 an impact reactor arrangement having a zigzag separator and cyclone separator
  • FIG. 6 different embodiments of deflection wheels in detail
  • FIG. 7 different separators integrated into the impact reactor in detail
  • FIG. 8 different sizers arranged in the head region of the impact reactor in detail
  • FIG. 9 different embodiments of cyclone separators.
  • the figures show an impact reactor 1 or an impact reactor arrangement for comminuting composite materials.
  • the impact reactor 1 comprises a cylindrical casing 2 consisting of metallic material.
  • a rotor 4 which is provided with impact elements 5 is arranged in the interior of the casing 2 in the bottom area 3 .
  • the rotor 4 is operatively connected to an electric motor 6 which is arranged outside the casing 2 .
  • the shaft connecting the rotor 4 to the electric motor 6 extends in the axial direction of the cylindrical casing 2 .
  • the rotor 4 is provided with blades which protrude radially from the shaft. Impact elements are arranged at the free ends of the blades. The impact elements are interchangeably fastened to the blades.
  • the impact reactor 1 is closed, at the end face facing away from the rotor 4 , by means of a cover 7 .
  • the cover 7 is assigned to a suction opening 8 , in which a classifying device 9 is arranged.
  • a supply air opening is placed into the impact reactor. Said opening allows an overpressure to be built up within the impact reactor 1 . Furthermore, an inert gas can be fed to the interior of the impact reactor 1 .
  • the inventive impact reactor 1 is suitable in particular for processing accumulator batteries, in particular for processing lithium-ion batteries.
  • these accumulator batteries are opened in a first step. This can be performed for example by a spiked roller or the like.
  • the accumulator batteries are fed to a treatment by pyrolysis, in which volatile or combustible components are removed from the accumulator batteries.
  • the accumulator batteries are comminuted in the impact reactor 1 by mechanical loading of the rotor 4 provided with the impact elements. Dusty parts of the accumulator batteries are removed from the impact reactor 1 via the suction opening 8 . Larger particles, for example metallic granulate material, accumulates in the bottom area of the impact reactor and is removed cyclically from the impact reactor.
  • FIG. 1 shows an impact reactor arrangement which is suitable in particular for processing accumulator batteries, for example lithium-ion batteries.
  • the material to be comminuted for example batteries, is removed from a bunker container 10 comprising a weighing device and is introduced into the impact reactor 1 via a feed belt 11 having a materials lock 12 . At this location, the material is comminuted by mechanical energy introduced via the rotors 4 .
  • the components of the accumulator batteries are separated from one another, wherein larger components consisting of metal or synthetic material accumulate in the bottom area of the impact reactor and can be removed via a removal device 13 arranged in the bottom area. Sorting can be performed by means of a magnetic discharge which separates magnetic materials from non-magnetic materials.
  • particulate components in particular black mass contained in the accumulator batteries, are led out of the impact reactor via the suction opening 8 arranged in the region of the cover 7 .
  • the inner space of the impact reactor can be inertized. Furthermore, the inner space of the impact reactor can have a lower pressure in comparison with the surrounding area and therefore undesired gaseous components cannot escape from the comminution process into the surrounding area.
  • pyrolyzed accumulator batteries are fed to the above-described arrangement regarding the impact reactor 1 .
  • a device for pyrolyzing accumulator batteries and the like is shown in FIG. 2 .
  • Material in particular accumulator batteries, is removed from a container 14 and fed to an impact reactor 1 via a material feed.
  • the material for example accumulator batteries, is mechanically loaded in such a way that housing parts are opening and any windings of electrode layers are opening.
  • the energy supplied is relatively low and thus the material is not comminuted but instead is merely broken up so that all of the components of the material react in the same manner under the treatment by pyrolysis.
  • the material is fed to a treatment by pyrolysis.
  • the material being broken up beforehand prevents explosive gases from suddenly escaping.
  • the treatment by pyrolysis can be initiated uniformly and can be performed in a continuous manner.
  • FIG. 3 shows a further embodiment of an impact reactor arrangement.
  • the embodiment shown in FIG. 3 is particularly suitable for comminuting objects comprising non-pyrolyzed accumulator batteries. This is particularly advantageous for objects which are provided with fixedly installed or integrated accumulator batteries.
  • the material is fed to the impact reactor 1 via an inertization lock which prevents gases from escaping from the impact reactor 1 into the surrounding area.
  • an inertized material discharge 15 is provided in the bottom area, and is provided in the bottom area.
  • a magnetic discharge 16 is arranged in the bottom area.
  • FIG. 4 shows an installation diagram of an impact reactor arrangement.
  • Material is fed to the impact reactor 1 via a metering facility 17 .
  • the material is discharged via a suction opening 8 .
  • course particles are separated and the remaining material is fed to a classifying device 9 in the form of a zigzag separator for classification.
  • a cyclone separator is connected to the classifying device 9 in order to deposit fine material.
  • the gas flow passes through a fines separator 19 for depositing very fine material and passes into the surrounding area via a fan 20 .
  • FIG. 5 shows in detail the arrangement consisting of the impact reactor 1 and the classifying device 9 comprising a zigzag separator and a cyclone separator.
  • the classifying device 9 is formed as a deflection wheel.
  • the deflection wheel has two mutually spaced apart rotor disks having rotor blades arranged between them.
  • the rotor blades are rounded on the outer side and taper on the inner side. Therefore, the rotor blades have a tear-shaped configuration in cross-section.
  • FIG. 6 a shows a deflection wheel which rotates axially with respect to the casing 2
  • FIG. 6 b shows a deflection wheel which rotates radially with respect to the casing 2
  • FIG. 6 c shows a plurality of deflection wheels arranged in the impact reactor 1 .
  • FIGS. 7 a , 7 b and 7 c show different embodiments of statically functioning classifying devices 9 .
  • FIGS. 8 a , 8 b and 8 c show different embodiments of classifying devices 9 in the form of gravity separators.
  • FIGS. 9 a and 9 b show different air supply options.
  • the classifying device can be a screen.
  • the screen can be roller-shaped, wherein the screen protrudes radially into the impact reactor.
  • the screen can be caused to rotate by means of an electric motor fastened outside the impact reactor.
  • a cleaning apparatus in the form of a lance protrudes into the roller-shaped screen.
  • the lance can build up an overpressure in the interior of the screen cyclically or in dependence upon differential pressure, said overpressure serving to remove a filter cake adhering to the screen on the outer side.
  • particles caught in the screen meshes so-called trapped grains, can be removed.
  • mechanical cleaning can also be performed, for example by brushes.
  • the screen is formed in such a way that particles having a particle size of 10 ⁇ m up to a size of several millimeters are allowed to pass through and are thus discharged from the impact reactor.
  • the deflection wheel is formed in such a way that particles having a particle size of 5 ⁇ m to 500 ⁇ m are allowed to pass through and are thus discharged from the impact reactor.

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  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Processing Of Solid Wastes (AREA)
  • Combined Means For Separation Of Solids (AREA)
  • Crushing And Pulverization Processes (AREA)
US16/327,397 2016-08-24 2017-08-23 Impact reactor Abandoned US20190176160A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102016115714.7 2016-08-24
DE102016115714.7A DE102016115714A1 (de) 2016-08-24 2016-08-24 Prallreaktor
PCT/EP2017/071253 WO2018037053A1 (fr) 2016-08-24 2017-08-23 Réacteur à impacts

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PCT/EP2017/071253 A-371-Of-International WO2018037053A1 (fr) 2016-08-24 2017-08-23 Réacteur à impacts

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US17/592,369 Division US11975332B2 (en) 2016-08-24 2022-02-03 Impact reactor

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US20190176160A1 true US20190176160A1 (en) 2019-06-13

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US16/327,397 Abandoned US20190176160A1 (en) 2016-08-24 2017-08-23 Impact reactor
US17/592,369 Active 2037-12-05 US11975332B2 (en) 2016-08-24 2022-02-03 Impact reactor

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US (2) US20190176160A1 (fr)
EP (1) EP3504006A1 (fr)
KR (1) KR20190043574A (fr)
CN (1) CN109890506A (fr)
DE (1) DE102016115714A1 (fr)
RU (1) RU2751665C2 (fr)
WO (1) WO2018037053A1 (fr)

Cited By (1)

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Publication number Priority date Publication date Assignee Title
US11975332B2 (en) 2016-08-24 2024-05-07 Schäfer Elektrotechnik U. Sondermaschinen Gmbh Impact reactor

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RU2751665C2 (ru) 2021-07-15
DE102016115714A1 (de) 2018-03-01
RU2019107483A (ru) 2020-09-25
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US11975332B2 (en) 2024-05-07

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