EP3215273A1

EP3215273A1 - Destruction of printed paper

Info

Publication number: EP3215273A1
Application number: EP15805383.5A
Authority: EP
Inventors: Dirk Jaresch
Original assignee: Akten-Ex & Co KG GmbH
Current assignee: JARESCH, DIRK
Priority date: 2014-11-07
Filing date: 2015-09-14
Publication date: 2017-09-13
Anticipated expiration: 2035-09-14
Also published as: WO2016070948A1; EP3215273B1; DE202015009627U1; DE202015009629U1; DE202015009626U1; EP3215273B8

Abstract

According to the invention, paper containing confidential information is reduced in size by means of a striking mechanism while adding water, thereby producing flaky waste.

Description

Destruction of labeled paper

The invention relates to a destruction of labeled paper under

Shredding. The term "labeled" also includes printed and otherwise provided with image or confidential information paper.

The destruction of labeled paper can be done in several ways. In the vast majority of methods, a crushing of the paper is intended to destroy it. Depending on the size and shape of the particles, the composition of the particles may be more or less difficult for completely or partially readable papers. The greater the difficulty level, the more certain the annihilation.

Various solutions are known for the shredding of paper.

In most cases, the papers are merely cut into strips. Document shredders are described inter alia in the following publications: WO1998048937, WO2002062390, WO2003066222, WO2005046876,

WO2005070553, WO2005109353, WO2008025551, WO 2008046608,

WO2008092621, WO2008092622, WO2008095693, WO2008113602,

WO2008131942, WO2011042139, WO2011113590, EP239104, EP260636, EP313946, EP363810, EP364673, EP386698, EP497170, EP525491,

EP616850, EP616851, EP616852, EP778087, EP842703, EP909221,

EP925834, EP928633, EP1016461, EP1132138, EP1259326, EP1334771, EP1658899, EP2063994, EP2081590, EP2114574, EP2114575, EP2125231.

The invention has set itself the task of destruction of

described paper with the highest possible degree of difficulty against a readable composition of the particles to produce. This is done after the

Invention generates a crumbly waste from the paper. Every crumb sits down

1

CONFIRMATION COPY composed of a variety of particles. Water is used as binder for the particles. For shredding a striking mechanism is used.

Depending on the duration of the stay in the percussion and depending on the impact effect results in a desired size reduction / particle size.

For batchwise comminution, the processing time with the help of a

Timing adjustable. In addition, the timer with a

Pressure measurement in the impact mechanism can be combined electronically.

With continuous processing of the paper in the hammer mechanism, the paper preferably passes through several striking tools. The number of impact tools to be passed determines the duration of the paper processing.

The impact mechanism is preferably made of a plurality of striker stars, which are arranged rotatably in a housing. Even more preferably, the striker stars are arranged on two, spaced-apart waves. The distance that the waves have from each other is greater than the length to the tip of the striking arms of a striking star.

The distance of the waves can - at the same time staggered arrangement of the striker stars on one wave the strikers on the other wave at the same time be smaller than twice the length to the top of the striking arms of a striking star. Then the stars of a wave with the

Comb the stars of the other wave.

Preferably, the distance of the waves on which the striker stars are greater than twice the length to the top of the striking arms of a striking star. Then the stars on one wave can be exactly opposite the stars on the other wave. The distance, measured in the axial direction of the shafts, of the striking arms of a striking star from adjacent striking stars on the same shaft is preferably at most equal to 1.5 times the thickness of the striking stars measured in the same direction, more preferably at most equal to the thickness of the striking stars. This distance can also be smaller than the thickness of the striker stars.

Optionally, all the striker stars belonging to one shaft are seated on a common sleeve, or all the striker stars belonging to a shaft are seated with a common sleeve on the associated shaft.

Optionally, the striker stars can sit one or more on a common sleeve.

The necessary torque on the one common sleeve or on the different, sitting on a shaft sleeve can thereby be transmitted from the shaft to the striker, that the sleeves are in a tongue and groove connection with the shaft. The spring extends in the axial direction of the shaft. This allows the striker stars to be pushed onto the shafts. In addition to the tongue and groove connection, other means for

Transmission of torque application find. For example, the sleeves can be clamped together or with the shafts. These are, for example, a covenant at one end of the waves and a

Nut on the other end of the shafts with the nut on a screw thread of the shafts.

The sleeves can either push together smoothly or with a

Meshing with each other. The use of single bats or different groups of

Strike stars for a wave has the advantage of interchangeability of individual striker stars or striking star groups. With the interchangeability of the repair effort can be reduced in case of damage or wear. Optionally, the interchangeability of the striking arms can also be used to optimize the process. For process optimization, the thicknesses of the beater arms and / or the distances to an adjacent beater arm on the same shaft and / or the lengths to the top of the beater arms

vary.

The housing of the percussion surrounds the striker with a distance, preferably between 0.2 times to 1, 5 times that in the axial

Direction of the wave measured distance of a striking star on the wave to an adjacent striking star on the shaft. Even more preferably, the distance of the surrounding housing to the striking stars is at most equal to the distance of a striking star from the adjacent striking star. Most preferably, the distance of the surrounding housing is at most equal to 0.7 times the distance of a striking star from the adjacent striking star.

It is also beneficial if the striker stars are provided with at least one inclined surface. With the inclined surface a conveying effect is achieved. While the striker stars without inclined surfaces have no significant conveying effect, can be achieved with the inclined surfaces a significant conveying effect. The inclined surfaces can be curved and / or straight. A curved inclined surface with conveying effect results when the inclined surfaces lie on a path that runs like the part of a thread. In fact, the striking arms can be produced with such inclined surfaces by a groove in the manner of a thread is incorporated into a cylindrical blank. Preferably, at least two become diametrically opposed opposite threads, even more preferably 3 or 4 uniformly distributed around the circumference of the blank threads incorporated. To produce the striking arms, the material walls left standing between the threads are interrupted at intervals. The interruptions can be generated by annular grooves. But it may also be an interruption of the material walls are generated by other grooves, which are the first

incorporated grooves run in opposite directions.

The dimensions of the resulting beater arms are determined by

Number of originally incorporated grooves

Dimensions of the originally incorporated grooves

Number of grooves that have stopped the material walls-annular grooves or grooves in the opposite direction

The production of the striking arms by incorporation of grooves has the advantage that the stopped material walls or the resulting beater arms on the back also have inclined surfaces with a conveying effect, which is effective when the direction of rotation of the waves is reversed. This is important when it comes to a blockage of the device. According to the invention, in the case of a blockage, reverse rotation of the device is initiated by reversing the direction of rotation of the shafts. Optionally, to eliminate a blockage in the change and repeatedly switched from flow to return.

Preferably, in the case of a blockage of the impact mechanism a

automatic reverse run provided. As a rule, one is

Reverse running between 2 and 10 seconds, preferably from 4 to 8

Seconds, even more preferably from 4 to 6 seconds provided.

This can be repeated several times. If then - for example in a period up to a maximum of 10 minutes, preferably up to a maximum of 5 minutes does not set a proper (continuous) crushing operation, an automatic shutdown of the device can take place.

The blockage can be detected electronically, for example with a motion detector. The control of the reverse run as well as the switching off of the reverse run and a renewed pre-run as well as the shutdown can be effected with suitable controls, for example with the SPS control from Siemens.

Instead of the curved inclined surface and a straight inclined surface may be provided on the impact arms.

The striking arms can be worked out not only in the form described above from the solid. Also suitable are striking arms, which are molded onto the sleeves or mounted on the sleeves. The beater arms can be welded or screwed on.

Preferably, no cutting edges are provided on the striking arms.

This is achieved by rounding at the edges of the beater arms.

Preferably, the curves have a radius of 0.5mm, more preferably a rounding of at least 1mm.

The curves cause an exclusive impact at the edges of the beater arms. Unlike cutting, comminution by hitting the cut points results in paper shredding. This makes it difficult to assemble the resulting paper particles into a readable paper.

In this case, a particle size of 5 square millimeters or less, based on the projection surface with vertical projection of lying on a flat, horizontal surface particles readily accessible. In addition, the paper particles absorb much more quickly at the shredded edges and much faster and more intensively

Connect with other paper particles to the desired crumbs.

The addition of water is at least 10% by weight, based on the mixture of paper and water. Even more preferred is the addition of water

at least 20 wt%, and most preferably at least 30 wt%, and most preferably 40 wt%, plus / minus 5 wt%, based on the mixture of paper and water. It is harmless for the destruction, if the water addition is 50Gew% and more.

By sufficient addition of water arises after appropriate

Processing time in de crushing an unreadable crumbly residue.

An advantage is an adjustable water addition via spray nozzles.

The addition of water can be done continuously and with a

adjustable valve to be controlled.

The addition of water can also be done at intervals. It is sufficient to use a valve that has only two positions, namely "open" and "closed" .The control then takes place by lengthening or shortening the

Adding intervals. The intervals may also be the same if the interval between the intervals of the intervals is extended or shortened.

As a controlled variable, the moisture of the resulting crumbs can be used. The moisture of the crumbs can be measured. Moisture can also be determined by the appearance of the crumbs.

Moisture differences of, for example, 20% by weight are readily apparent in appearance and motion behavior. The increasing moisture easily leads to a shine on the crumbs caused by the moisture. With increasing humidity, the crumbs become heavier and the crumbs move differently.

Preferably, an automatic control of humidification is provided. Control may be based on empirically determined levels of water addition.

Preferably, the addition of water takes place as a function of the measured current consumption of the electric motors, with which the crushing / percussion mechanisms are driven, and depending on the degree of filling of

Contraption. The degree of filling is the measure of the cavity filling in the

Contraption. The degree of filling is automatically taken into account by the operating staff if the addition of water takes place according to the nature of the crumbs emerging from the installation / device. If an automatic operation is to take place, then the degree of filling can be measured optically or gravimetrically and linked to the measured current consumption. This results in control values for the addition of water.

For gravimetric measurement of the degree of filling are pressure measuring cans, which are positioned under the device and measure the weight of the device with filling electrically.

In part, the addition of water can also without taking into account the

Filling degree are controlled after the power consumption.

With increasing load / load, the power consumption of the motors increases. The load / load results from the work required for the movement of the striking mechanisms.

Usually, the destruction of important papers takes place under

Presence of an operator for the device. For example, it is easily possible for the person based on the appearance of the resulting crumbs to choose between individual stages of water addition. The crumbs preferably have sufficient strength to undergo no more than a deformation of up to 50% of their thickness, more preferably no more than 30% of their thickness and most preferably no more than 10% of their thickness, up to a minimum of 30mm under their own weight.

Preferably, the water is injected into the device. The spraying can

-before the paper enters the percussion and / or

during comminution in the percussion

after the paper particles leave the impact mechanism

respectively.

The water nozzles are then arranged at the appropriate location in the device or on the device.

The spraying with water before the paper enters the hammer mechanism and / or the spraying with water during comminution in the hammer mechanism have the additional advantage of reducing the friction values in the hammer

Percussion. This simplifies operation or reduces the risk of the impact mechanism becoming stuck. According to the invention, the

Shredding operation can be optimized by increasing or decreasing the water addition.

Further influence on the addition of water can also the degree of filling of the

Schlagwerkes have. That is, when changing the degree of filling a change in the addition of water may be appropriate.

Preferably, the percussion - and if available, the

Pre-shredder - in the case of termination of the destruction work emptied, so that there no paper settles and glued. This will be 2015/001836 prevents that a subsequent restart of the device is no excessive resistance and the processing of the paper is not hindered by narrowing the spaces.

To end the extermination work it comes in batches

Paper destruction at the end of a batch.

As termination of the extermination work also longer interruptions of the annihilation work can be regarded. This is the case, for example, during repair and maintenance during the processing of a batch. A longer interruption can also occur if, for example, in one-shift operation, the end of the shift is reached and processing must be continued on the next working day.

Optionally, a multi-stage crushing is provided.

For this purpose, the impact mechanism according to the invention can be preceded by a pre-shredding.

Without pre-shredder the impact mechanism according to the invention is preferably preceded by a material feed. Zii the material feeder belong optionally

Filling tools and a funnel arranged above.

The loading funnel should have a volume that allows to record at least the contents of a wide DIN A4 file folder. Preferably, the loading funnel allows at least the recording of the contents of two wide DIN A4 file folders. This dispenses with the need for the persons responsible for the disposal to take apart the contents of a file folder in order to feed the contents into the shredder. This prevents the persons entrusted with document destruction from having to take notice of their contents by dissecting the files.

The outlet of the hopper is wide enough to hold the paper in the

To bring engagement area of the filling tools. For feeding the paper into the hammer mechanism, pre-shredding the paper is an advantage.

The pre-crushing consists either of a cutting unit, which is placed on the hopper and in turn upstream of a hopper with the above reproduced properties. The cutting unit may be a conventional cutter with two cutter shafts on which sit a plurality of knives, which interlock and the filled paper to

Process paper strips.

The paper strips can be more easily with the filling tools in the

Bring the impact area of the striking mechanism. The delivery of the

Pre-shredder in the hammer mechanism is preferably encapsulated so that the

Paper strips are not accessible to unauthorized persons.

By changing the distance of the blades in the pre-shredder, the width of the strips changes.

It is known to form such knives as rotating cutting discs, which are mounted on two mutually parallel, rotating shafts. The cutting discs can be provided with hooks or cams. The

Knife disks of one shaft engage between the cutter disks of the other shaft and vice versa, so that each knife on one shaft forms knife pairs simultaneously with two knives of the opposite shaft. For this purpose, each blade is on both sides with appropriate

Provide cutting edges and the cutting discs on each shaft are spaced apart so that the cooperating cutting edges have the correct cutting position for cutting paper.

Depending on the design of the cutting discs, paper strips or pieces of paper emerge from the preliminary comminution. 2015/001836

The pre-comminution and the main comminution according to the invention result in a multistage comminution.

The pre-shredding can also be a multi-stage percussion

connect. Different impact tools can be used. Each impact tool can be considered in extreme cases as a crushing stage. The different levels may be all or part of the same. It can also be different impact tools. Preferably, groups of identical striking tools are provided in the form of striking stars, as described above.

However, the percussion trains can also be arranged in a different form, for example on a line that winds around a shaft like a thread. Depending on the distance of the striking tools, this results in a conveying effect of the striking tools even without a molded bevel. The

The more dense the impact tools are, the greater the conveying effect.

The comminution in the striking mechanism leads to an extremely irregular

Particle shape. The irregular particle shape is another obstacle when trying to put the particles together again. By moistening the shredded paper according to the invention, a crumbly, clumped material is formed. The particles contained therein can no longer be put together in an originally readable form.

Preferably, the crumbly clumped product is collected in a container that can be replaced with an empty container when the container has reached a corresponding degree of filling. The container can be a usual

Waste bin, which is emptied in the context of conventional waste disposal. Because of the shredding invention requires no special secrecy for further disposal.

For the operation of the shredding invention, a suitable space with sufficient power and water connection must be provided.

It is advantageous to make the shredding in a container Absetzcontainer or a roll-off container.

Drop-off containers are picked up with a lifting gear and a lifting device of the truck and set down for transport on the truck. This can be done very gently. The same applies to the withdrawal of the

Depositing container from the truck and the subsequent settling at the desired location. Also find the Hubgeschirr and the lifting device

Application.

The roll-off containers have rollers at one end underneath and at the other end a bracket at the end. Between the two ends lanes for rollers are provided on the underside of the roll-off container, on which the container can be pulled onto the back of the truck. The associated truck has driver's cab side a hydraulically moved hook and back or at the rear end rollers. For loading, the truck is positioned with the rear side in front of the front of the container where the stirrup is located. Then the hook is moved over the rear end to grip the container on the bracket. Then the container is raised with the hook and placed with the raised end on the rollers at the truck end. Then the hook is pulled in. The container rolls on its own wheels and / or the rollers at the end of the truck until it stands on the back of the truck. The unloading takes place in the opposite direction. During loading and unloading, however, the roll-off container can be shaken considerably and subjected to bending and twisting.

The containers are made of steel or aluminum and are usually so stable that the container can be handled practically torsion-free. Although the roll-off containers offer a favorable space. There are also commercial Abrollcontainer with a standing height. Nevertheless, the document shredder according to the invention learn by mounting in a roll-off container a heavy burden. This is according to the invention by attaching the document shredder at the bottom of the roll-off container or on a

Intermediate floor in the roll-off container taken into account. In addition, the roll-off container is provided with a lid. The attachment can be a

Be screwed.

This container can also be placed outdoors.

It is advantageous to divide the roll-off container into two rooms, one of which is located at the rear end of the container, where large-volume containers are usually provided with two doors. This space can be advantageously used to set up the collection of waste accumulated. This space may otherwise be locked so that the garbage cans can be safely accessed for garbage collection.

The waste produced by the shredder is preferably stored in

secured form transported through the space dividing partition of the container in the respective collection containers. Secured means that there is no access to the document shredder due to the transport device. When

Transporting devices for secure transport are, for example, screw conveyors. But other otherwise insecure transport facilities such as simple chutes can be part of a secured transport, if, for example, a lock is provided in or on the partition. The above two-room technology with lock can also be used in a building.

The lock can close the transport path from the document shredder to the lock when the space from the lock to the collection container is open and vice versa. This is for example a lock with a

Rotary valve, which necessarily closes an opening of the lock container and opens another opening. Advantageously, this can be set up so that it is not opened and closed at the same time. This is achieved when the openings in the rotary valve and in the

Lock container / lock housing are offset so that a

The shredder-side opening in the lock housing is only opened after the other, collection container side opening is closed or the collection removal opening is opened only when the shredder side opening is closed. The lock can be operated according to demand. That is, by a built-in scale or a motion detector or even by a level indicator, the lock or the

Transport device to be started.

For this purpose, the lock preferably has a drive which is connected to the detector to the same PLC control, which also controls the shredder.

Advantageously, the volume of the Absetzcontainers in the front room not only allows the installation of shredders, but also the installation of a generator for the power supply and the installation of a

Water tank for the power supply. With the water tank and the power supply, the shredder can be placed anywhere where there is a lack of sufficient power and / or water supply.

This does not exclude a water supply and a power supply from the outside to the container. The use of a container with intermediate bottom allows advantageous ventilation of the container, if the space between container messengers and false floor has a Zuluftöffnung, there are more openings in the intermediate floor and, for example, at the upper end of a container wall an exhaust port is provided. Then there is already a considerable draft. The draft can be improved by an electric fan. Preferably, the fan is arranged inside the container in front of the exhaust air opening.

The accessibility of the front room for the installation, maintenance and operation of the shredder can be made with a corresponding door to the front room.

In the drawing, an exemplary embodiment is shown. The illustrated device serves in a mode of operation for shredding paper.

In this case, described paper by means of a conveyor belt 10 in a

Feeding hopper 1 abandoned.

Under the hopper a pre-shredder 10 is arranged. Of the

Pre-shredder 10 has two blade shafts, which are arranged parallel to each other and in the embodiment lie in the same height. The drives of both blade shafts are denoted by 11 and 12. On the

Knife shafts are fitted with cutting discs, which are provided with cams on the circumference. The blade discs of both blade shafts overlap each other, each blade disc which engages a shaft between two other blade discs of the other shaft. As a result, the paper guided by the feeding hopper 1 into the catchment area of both cutter shafts is caught by the cutter shafts and cut into strips. The resulting paper strips fall down and get into the

Catchment area of a striking mechanism 4.

The catchment area is formed by propeller-like arms 14 and 15. The arms 14 and 15 sit on two adjacent shafts 16. The shafts 16 are rotatably mounted in a housing 17. The shafts 16 at the outlet end of the housing 17 in bearings 18th

rotatably held.

Further bearings 19 are provided elsewhere in the housing 17.

The shafts 16 protrude through the bearings 19 so that a drive connection with drive motors 21 can be produced via couplings 20. There are motors whose direction of rotation is reversible, so that the device is convertible from flow to return.

The shaft 16 also carry various striker stars 6. Each striker 6 has four evenly distributed around the perimeter arms.

In operation, the paper strip falling from the pre-shredder are detected by the arms 15 and conveyed in the direction of the beater arms 16.

The beater arms 16 smash the paper strips into small irregular particles which are frayed at least at the edge. The impact work is carried out in the exemplary embodiment with the addition of 40% by weight of water, based on the amount of waste paper and water. This causes a strong moisture penetration of the particles. The particles clump. They combine to crumbs, which are pushed out of a discharge opening 25 of the housing. The crumbs fall from the discharge opening in front of the device. In other exemplary embodiments, the crumbs fall into a container with which the crumbs can be removed. In further embodiments, the crumbs forming the waste are transported away with a conveyor such as a screw conveyor or a conveyor belt.

The conveying effect of the arms 15 is created by inclined surfaces 30 on the arms 15; the conveying effect of the striker stars 6 by inclined surfaces 31 at the arms.

The document shredder according to the invention is placed in Ausfüirungsbeispiel in a driveable basement room so that the waste resulting from the crushing can be placed in a box and the box can be driven with a forklift or other, preferably motorized vehicle for emptying.

In other exemplary embodiments, the invention is

Shredder in an outdoor transportable container with power and water connections. The container is shown in Fig. With dash-dotted lines 130.

4 shows a schematic representation of a roll-off container with an intermediate wall 133, which divides the container interior into two spaces 131 and 132. In the other room 132 of the shredder 136. From the shredder 135 leads a conveyor line 140 for the humidified waste through the intermediate wall 133 to the sump 136. In the feed line 140 is located in the region of the intermediate wall 133 a Lock 141.

The room 131 is accessible through a door 134 for operators.

The room 132 is accessible through a door 137 for the collection of the waste.

Claims

claims

1.

Destroying paper which is provided with confidential information, with comminution being carried out,

characterized in that the paper is comminuted in a percussion and is made with the addition of water in a crumbly form.

Second

Process according to claim 1, characterized by the addition of at least 10% by weight, preferably at least 20% by weight and even more preferably at least 30% by weight of water and most preferably 40% by weight, plus / minus 5% by weight of water, based on the amount of paper and water.

Third

The method of claim 1 or 2, characterized by a continuous addition of water or an addition of water at intervals, wherein the interval duration and / or the duration between the intervals is adjustable.

4th

Method according to one of claims 1 to 3, characterized by

Injection of water before comminution and / or during the

Shredding the paper.

5th

Method according to one of claims 1 to 4, characterized by the use of a striking mechanism with several rotating impact arms, which have a conveying effect by inclined surfaces on the striking arms.

6th

Method according to one of claims 1 to 5, characterized in that the conveying effect of the striker stars by further inclined surfaces on the

Shocking and by reversing the beater arms is reversible.

7th

Method according to claim 6, characterized by automatic

Backward running in case of blockage of the striking mechanism.

8th.

A method according to claim 7, characterized in that after the

Reverse is automatically switched back to forward.

9th

Method according to claim 8, characterized by a multiple

automatic change from forward to reverse in change after a block.

10th

Method according to one of claims 5 to 9, characterized in that the impact mechanism is driven empty after completion of the crushing work.

11th Method according to one of claims 1 to 10, characterized by the use of percussion with impact arms, which sit on waves, wherein the striking arms are exchangeable together or in groups or individually, wherein the distance of the waves from each other is greater than the length of a shaft to to the top of the beater arms, so that the rotating arms of the one strikes one wave with the rotating impact arms of the other wave or distance from each other.

12th

A method according to claim 11, characterized by the use of a percussion mechanism, in which the striking arms sitting on a shaft in the axial direction of the shaft have a distance from each other which is at most equal to or less than or equal to the impact arm thickness

Impact arm thickness is.

13th

A method according to claim 11 or 12, characterized in that the

Schlägarmabstand in the axial direction of the shaft is adjustable

14th

Method according to one of claims 11 to 13, characterized by

Use of an impact mechanism with a housing surrounding the striking arms at a distance equal to 0.2 times to 1.5 times the

Distance between adjacent impact arms in the axial direction of the waves, preferably at most equal to the distance between the impact arms in the axial direction, more preferably at most equal to 0.7 times the distance between the impact arms in the axial direction.

15th Method according to one of claims 11 to 14, characterized by the use of a percussion mechanism with impact arms, which have an inclined surface from which a conveying effect emanates, preferably with two

Angled surfaces, one of which has a conveying effect during forward movement of the waves / beater arms and the other in the reverse rotation of the

Shafts / beater arms has a conveying effect, wherein the inclined surfaces are curved and / or straight.

16th

Method according to one of claims 11 to 15, characterized by

Use of impact arms, which have a rounding of at least 0.5 mm radius, more preferably of at least 1 mm radius at the edges.

17th

Method according to one of claims 11 to 15, characterized by a pre-shredding of the paper before the task in the hammer mechanism.

18th

Method according to claim 17, characterized by use of a

Pre-shredder with a cutting unit, which initially produces paper strip from the shredded paper, which are then crushed.

19th

A method according to claim 17 or 18, characterized by using a collection device between the pre-shredder and the percussion mechanism, wherein the collection device picks up the paper strip emerging vertically from the pre-shredder and hurls it horizontally into the striking mechanism.

20th

Method according to one of claims 17 to 19, characterized by

Use of different impact tools.

21st

Method according to claim 20, characterized by the use of

Impact tools that are at least partially formed propeller-like.

22nd

Method according to one of claims 17 to 21, characterized by the use of striking mechanisms with impact arms sitting on rotating shafts, wherein the striking arms are welded directly on the shafts or with sleeves detachably seated on the shafts, wherein the striking arms are preferably arranged in groups, even more preferably with whip arms arranged in the form of whipstars.

23rd

A method according to claim 22, characterized by the use of _' percussion with individually and / or group interchangeable

Beater bars.

24th

Method according to one of claims 1 to 23, characterized in that the power consumption of the drive motors of the comminution device is measured and the control of the comminution device takes place wholly or partly after the current consumption of the drive motors.

25th A method according to claim 24, characterized by an addition of water with increasing current consumption in overcoming an increased resistance to the movement of the striking mechanism.

26th

A method according to claim 24, characterized by the reversal of the direction of rotation of the drive motors for comminution when reaching a current consumption, which is typical for the collision of the comminution device.

27th

Experienced y claim 26, characterized automatic reversal of the Antnebsmotore after a collision and subsequent reverse rotation of the Antnebsmotore.

28th

Method according to one of claims 1 to 27, characterized in that the shredding device is driven empty in the event of a prolonged interruption of operation, at least in the area subject to moisture.

29th

Method according to one of claims 1 to 28, characterized by the use of a preferably designed as a roll-off container for setting up and transport of the crushing device, wherein the crushing device is mounted on the container floor,

preferably with a built-in water tank for water addition and a built-in power generator.

30th A method according to claim 29, characterized by the division of the container into at least 2 rooms, of which the one room for the

Crushing device is determined and in the other room at least one container is provided for the crumbly waste, both rooms are separately accessible to the operator,

wherein the waste is transported by a transport device through the wall separating the two spaces, wherein a lock is provided in the region of the wall, so that the space with the comminution device is inaccessible from the collecting space for the waste.