Device for processing fibrous materials

Abstract

The invention relates to a device (100) for processing fibrous materials, in particular fibrous material with high material densities in the HC range such as waste paper, comprising at least one pulping module (10) for pulping fibrous material into a fibrous stock suspension, and a grading module (10) which is coupled to the pulping module (10) for subsequent grading of the pulped fibrous stock suspension, wherein the pulping module (10) comprises a housing (12) and a first rotor (17) which is arranged in the housing (12), and wherein the grading module (50) comprises a housing (52) with a screen (53), for separating the fibrous stock suspension which is fed in into accepted stock and into a reject, and a second rotor (57) which is arranged in the housing (52).

Description

[0001] Device for processing fibrous materials

[0002] The invention relates to a device for processing fibrous materials, in particular for dissolving and sorting fibrous materials with high material densities in the HC range.

[0003] Pulping devices are used to process fiber raw materials so that they can be used in the form of a fiber suspension, for example, in a machine for producing a fiber web, especially a paper web. Recycled paper fibers, for example, are used as the fiber raw material. After pulping, the fiber-containing suspension is subjected to wet screening to retain non-fiber contaminants on a screen due to their size and then separate them. The fibers can pass through the screen openings with a portion of the water.

[0004] Different devices are used for the pulping and initial coarse screening of fibrous materials such as waste paper, such as a continuous LC pulper (LC = low consistency), a pulping drum, or a discontinuous HC pulper (HC = high consistency). Sorting drums or flat screen machines are used for the screening of pulped waste paper. These devices each offer specific advantages such as low investment costs, low specific energy requirements, the input of complete, unseparated raw material bales, low maintenance costs, low wear, ease of operation, continuous pulping of fibrous materials with high stock densities, and the separation of difficult-to-separate raw materials.

[0005] However, due to the use of different machines for the respective process steps, this leads to transport routes being created between the individual machines in a production facility, as there is currently no concept for integrating various processing stages, in particular the pulping and coarse sorting of fibers, in one device. DE 10 2015 206 499 A1 describes a device for pulping fibers, in particular for pulping fibers with high stock densities in the HC range. The device comprises a housing and working elements arranged in the housing which can be brought into engagement with the fiber. The housing is designed in the form of a trough which is open at the top and has a U-shaped cross-section and in which a rotor is arranged which is mounted so as to be rotatable about an axis parallel to the longitudinal axis of the trough and is provided with blade-like working elements which in particular have a low spinning tendency.

[0006] DE 10 2015 206 506 A1 describes a device for sorting wet, dirt-containing fibers, in particular for the initial sorting of pulped waste paper, comprising a housing and a screen having a plurality of screen openings through which a portion of the fiber suspension fed to the housing can pass as accepted material, while another portion of the fiber suspension is retained by the screen openings as reject. Disc-shaped elements are arranged on a rotatably mounted rotor in the housing to keep the screen clear and loosen the reject.

[0007] The object underlying the invention is to create a device for processing fiber materials with which both the dissolution and the sorting of fiber materials can be carried out safely and without disruption and which has a compact design.

[0008] This object is achieved according to the invention with regard to a processing device by the features of patent claim 1. The further claims relate to preferred embodiments of the invention.

[0009] According to a first aspect, the invention provides a device for processing fibrous materials, in particular fibrous materials with high stock densities in the HC range, such as waste paper. The device comprises at least one pulping module for pulping fibrous material into a fibrous material suspension and a sorting module coupled to the pulping module for subsequently sorting the dissolved fibrous material suspension, wherein the pulping module comprises a housing and a first rotor arranged in the housing, and wherein the sorting module comprises a housing with a screen for separating the supplied fibrous material suspension into an accept and a reject, and a second rotor arranged in the housing. The rotor shaft of the first rotor of the pulping module and the rotor shaft of the second rotor of the sorting module are connected to one another and form a common shaft. This promotes a compact design.

[0010] A further development proposes a heavy-part separation module located between the pulping module and the sorting module. This allows heavy parts to be separated at an early stage and does not have to pass through the screening module (50). This has a positive effect on energy consumption. Furthermore, wear on the screening module can be reduced.

[0011] In an advantageous embodiment, the housing of the pulping module is designed in the form of a trough extending horizontally along a longitudinal axis. The first rotor comprises a rotor shaft mounted for rotation about a rotational axis parallel to the longitudinal axis of the housing, with working elements arranged circumferentially thereon that can be brought into engagement with the fiber material.

[0012] In a further embodiment, the housing of the sorting module is designed in the form of a trough extending horizontally along a longitudinal axis. The trough is provided in its lower region with a screen curved in a partially circular cross-section. The second rotor comprises a rotor shaft mounted for rotation about an axis of rotation parallel to the longitudinal axis of the housing, with clearing elements arranged circumferentially thereon for keeping the screen clear and for loosening the rejects.

[0013] In particular, the trough of the housing of the dissolving module and / or the trough of the housing of the sorting module has, in its lower region, a partially circular, in particular semicircular, inner wall in cross-section. In an advantageous embodiment, the rotor shaft of the first rotor of the dissolving module and the rotor shaft of the second rotor of the sorting module are connected to each other and form a common shaft.

[0014] In a further development, it is provided that the rotor shaft of the first rotor of the dissolving module and the rotor shaft of the second rotor of the sorting module are designed as one piece in order to form the common shaft.

[0015] In particular, a drive module is provided for controlling and driving the common shaft consisting of the rotor shaft of the first rotor of the dissolving module and the rotor shaft of the second rotor of the sorting module. Drive by a common drive module enables a compact design. Furthermore, the use of only one drive has a beneficial effect on manufacturing costs.

[0016] In a further embodiment, it is provided that the common shaft can be driven with a maximum peripheral speed which is less than 10 m / s and preferably less than 5 m / s.

[0017] Advantageously, the heavy part separation module is arranged between the housing of the dissolving module and the housing of the sorting module.

[0018] In particular, it is provided that the clearing elements of the sorting module are designed as discs inclined relative to the axis of rotation of the rotor and are arranged on the rotor shaft in such a way that, when the rotor rotates, an at least substantially axial back and forth displacement of the fiber suspension or the reject is effected.

[0019] In an advantageous embodiment, the smallest radial distance between the working elements and an inner wall of the housing of the dissolving module is approximately 200 mm, preferably 500 mm. In a further embodiment, the radial distance between the clearing elements and an inner wall of the housing of the sorting module is less than 20 mm.

[0020] Advantageously, the inlet area of ​​the sorting module is designed so that the fiber suspension flows in below the rotor shaft. Inflow is particularly advantageous in a region 15-20 cm below the rotational axis of the rotor shaft.

[0021] In particular, it is provided that the screen in the inlet area of ​​the sorting module has a very low height and is essentially located only in a base area. The base area extends over a maximum angular range of 90°, preferably 60°, and particularly preferably over 45° of the semicircular inner wall. Alternatively, the inlet area can be designed without a screen, and the screen is only located after the inlet area in the sorting module.

[0022] Advantageously, the fiber material to be treated is fed to the housing of the pulping module from above and orthogonally to the axis of rotation or axially to the axis of rotation, wherein the pulped fiber material can be evaluated axially or laterally by the pulping module in such a way that it can be continuously fed to the sorting module after pulping.

[0023] In a preferred embodiment, a vertical height difference is provided between the exit of the pulping module and the entrance of the sorting module. This height difference imparts kinetic energy to the suspension through the force of gravity. This height difference is preferably dimensioned such that the fiber suspension can be fed from the pulping module to the screening module without the need for a pump.

[0024] In a preferred embodiment, the outlet of the dissolving module is provided with a weir, preferably an adjustable weir. This allows the height difference and thus also the potential energy of the suspension to be adjusted. In a further development, a reject module is provided, which is connected to the sorting module for discharging the reject from the sorting module.

[0025] The invention is explained in more detail below with reference to embodiments shown in the drawing.

[0026] It shows:

[0027] Figure 1 is a schematic perspective view of a processing device for fibrous materials according to the invention;

[0028] Figure 2 is a schematic perspective view of a dissolving module of the processing device according to the invention;

[0029] Figure 3 is a schematic perspective view of a sorting module of the processing device according to the invention;

[0030] Figure 4 shows an enlarged section of Figure 1 in the area of ​​the transition between the dissolving module and the sorting module;

[0031] Figure 5 shows a section of a perspective interior view of the sorting module;

[0032] Figure 6 is a perspective cross-sectional view of the sorting module;

[0033] Figure ? a schematic representation of the liquid supply for the dissolution module and the sorting module

[0034] Figure 8 shows a schematic representation of the interface between the dissolving module and the sorting module, with three detailed views. Additional features, aspects, and advantages of the invention or its embodiments will become apparent from the detailed description in conjunction with the claims.

[0035] Fig. 1 shows a device 100 for processing fibrous materials, in particular for dissolving and sorting fibrous material. In particular, the processing device 100 is suitable for dissolving fibrous materials with high consistency in the HC range (high consistency), and in particular waste paper materials. The device comprises a dissolving module 10 and a sorting module 50. The dissolving module 10 is designed for dissolving fibrous material, and the sorting module 50 is designed for subsequently sorting the dissolved fibrous material. A heavy part separation module 70 is arranged between the dissolving module 10 and the sorting module for separating heavy parts such as wires, metal parts, plastic components, etc., which may be present in the fibrous material, which is usually supplied in the form of bales.In addition, a feed module 30 for feeding the fiber material, in particular in the form of bales, into the opening module 10, a drive module 40 and a reject module 80 are provided.

[0036] Fig. 2 shows an exemplary pulping module 10 with a housing 12. A first rotor 17 is arranged in the housing 12. The first rotor 17 comprises a rotor shaft 18 which is rotatably mounted about an axis of rotation 14 parallel to a longitudinal axis of the housing 12. Blade-like working elements 19 which can be brought into engagement with the fiber material are arranged on the circumferential surface of the rotor shaft 18. The working elements 14 are arranged, with respect to the axis of rotation 14 of the rotor shaft 18, in particular in superimposed planes in which they move. A leading edge of the rotating blade-like working elements 19 can be inclined at an angle relative to a tangent applied to the circumference of the rotor shaft 18, which angle is in particular less than 45° and preferably less than 30°. In particular, the working elements 19 can be disk-shaped or wing-shaped.The housing 12 of the pulping module 10 is designed in the form of a trough that is open at the top, U-shaped in cross-section, and extends horizontally along the rotation axis 14. In particular, it is provided that the trough of the housing 12 has, in its lower region, an inner wall that is partially circular in cross-section, in particular semicircular. The smallest radial distance between the working elements 19 and an inner wall of the housing 12 of the pulping module 10 is approximately 200 mm, preferably 500 mm. This trough-shaped, upwardly open design of the housing 12 and the large distance between the rotating working elements 19 and the stationary inner wall of the housing 12 largely prevents the introduced fiber material from becoming trapped between the wall of the trough and the working elements 19.

[0037] Furthermore, the pulping module 10 comprises an input zone into which the fiber to be treated can be introduced into the housing 12. A pulping zone adjoins the input zone 22. It can be provided that the diameter of the rotor shaft 18 is larger in the input zone than in the pulping zone. The pulped fiber can be evaluated, in particular, axially and / or laterally and is continuously fed to the sorting module 50 after pulping. In particular, it can be provided that the pulped fiber can be evaluated laterally in the region of upwardly moving working elements 19, so that the ejection is assisted by the moving working elements 19.

[0038] In addition, the pulping module 10 can be equipped with a comminution device with various comminution elements, particularly for comminuting spinning parts such as cords, wires, plastic parts, and general impurities. These comminuted impurities are then removed from the fiber suspension by the heavy particle separation module 70 and discharged. The comminution elements can be provided both in the input zone and in the pulping zone.

[0039] The rotating rotor shaft 18 achieves a continuous pulping process, resulting in effective material utilization and uniform and stable processing of the pulp. In particular, speck-free pulping is possible for HC pulps and difficult-to-dissolve raw materials, which can be assisted, if necessary, by conducting the pulping at higher temperatures and / or adding chemicals. The rotating working elements 19 enable the pulp to be thoroughly mixed and kneaded, so that sufficiently high shear forces are exerted on the pulp components still to be separated, enabling energy-efficient pulping.

[0040] Fig. 3 shows an exemplary sorting module 50 with a housing 52. The housing 52 of the sorting module 50 is designed separately from the housing 12 of the pulping module and can therefore be assembled and maintained independently of the housing 12 of the pulping module. The housing 52 comprises a screen 53 in a lower region, which has a plurality of screen openings through which a portion of the fiber suspension fed to the housing 52 from the pulping module 10 can pass as accepts, while another portion of the fiber suspension is retained by the screen openings as rejects. The housing 52 of the sorting module 50 is designed in the form of a trough that is open at the top, U-shaped in cross-section and extends horizontally along a longitudinal axis, and which is provided in its lower region with the screen 53 that is curved in a part-circular cross-section.In particular, it is provided that the trough of the housing 52 has, in its lower region, an inner wall which is partially circular in cross section, in particular semicircular.

[0041] A second rotor 57 is also arranged in the housing 52. The second rotor 57 comprises a rotor shaft 58, which is rotatably mounted about a rotational axis 54 parallel to the longitudinal axis of the housing 52. The rotor shaft 58 is provided on its circumference with clearing elements 59 for keeping the screen 53 clear and for loosening the recipe. In particular, the clearing elements 59 are designed as discs inclined relative to the rotational axis 54 of the rotor 57 and are arranged on the rotor shaft 58 in such a way that, as the rotor 57 rotates, the fiber suspension or reject is pushed back and forth at least substantially axially. The radial distance between the clearing elements 59 and an inner wall of the housing 52 of the sorting module 50 is less than 20 mm, since this allows for an efficient screening effect. In particular, the screen 53 can be composed of one or more appropriately curved screen plates.Several zones with different screen opening cross-sections can be provided.

[0042] According to the invention, the rotor shaft 18 of the first rotor 17 of the dissolving module 10 and the rotor shaft 58 of the second rotor 57 of the sorting module 50 are connected to one another and form a common shaft. The two rotor shafts 18, 58 can be manufactured separately and connected to one another by a connecting element or special connecting techniques. However, it can also be provided that the rotor shaft 18 of the first rotor 17 of the dissolving module 10 and the rotor shaft 58 of the second rotor 57 of the sorting module 50 are designed as a single piece to form the common shaft. The drive module 40, which comprises appropriately designed actuators or motors as well as a control device, is provided to drive the common shaft comprising the rotor shaft 18 of the first rotor 17 and the rotor shaft 58 of the second rotor 57.The common shaft is driven by the drive module 40 with a maximum peripheral speed which is less than 10 m / s and preferably less than 5 m / sec.

[0043] The heavy particle separation module 70 is arranged between the housing 12 of the pulping module 10 and the housing 54 of the sorting module 50. This removes heavy particles from the fiber suspension before reaching the sorting module 50, preventing jamming of the rotor shaft 58 by foreign matter, which would otherwise be easily possible due to the small distance between the clearing elements 59 and the inner wall of the housing 52.

[0044] Overall, the low peripheral speed of the common shaft, which is preferably less than 5 m / s, in conjunction with the large distances between rotating and stationary surfaces in the pulping module 10 and the intermediate heavy particle separation module 70, results in low wear on the machine elements. The fiber to be treated is fed to the housing 12 of the pulping module 10 by means of the feed module 30, in particular from above and orthogonal to the rotational axis 14 or from the front and axial to the rotational axis 14. The feed module 30 is advantageously designed such that an infeed edge for inserting the fiber bales has a low height. As a result, only a low energy expenditure is required for feeding the processing device 100. The feed module 30 comprises an infeed hopper 32 through which the fiber bales are fed to the pulping module 10.The feed hopper 32 is designed such that the fiber bales can be fed to the pulping module 10 without being shredded, so that they rest on the rotor shaft 58 and are gradually milled off by the working elements 19 of the rotor shaft 58.

[0045] Figure 4 shows the transition area between the pulping module 10 and the sorting module 50 in more detail. A weir device 122 with an overflow edge is provided to influence the amount of pulped fiber passed from the pulping module 10 to the sorting module 50. The overflow edge of the weir device 122 is height-adjustable, allowing the volume of the ejected amount of pulped fiber to be regulated.

[0046] After the dissolved fiber has passed through the weir device 122, a further addition of liquid, in particular an addition of water, is provided in order to reduce the consistency of the fiber suspension for passage through the heavy particle separation module 70. For this purpose, a connecting device 124 is provided, in particular in the upper region of a transport passage 125 for the fiber suspension, to which a water hose, for example, can be connected. To achieve thorough mixing of the dissolved fiber with the liquid, the liquid is fed in at a high speed, preferably in the range of greater than 5 m / s. In addition, an impact surface inclined at a slight angle, onto which the liquid jet impacts, can be provided in the interior of the transport passage 125. The impact impulse can improve the mixing of the dissolved fiber with the liquid.After the dilution of the fiber suspension by the supplied liquid, the diluted fiber suspension now enters the heavy particle separation module 70. Due to the dilution, the heavy particles in the fiber suspension can sediment and be sorted out as sediment in the heavy particle separation module 70.

[0047] After passing through the heavy particle separation module 70, the fiber suspension enters the sorting module 50. To ensure continuous transport of the fiber suspension from the pulping module 10 into the sorting module 50, it is advantageous to coordinate the height of the overflow edge of the weir device 122 and the height of an inlet area of ​​the sorting module 50. The inlet area of ​​the sorting module 50 is advantageously designed such that the fiber suspension can flow in below the rotor shaft 58, in particular in a region 15 - 20 cm below the axis of rotation 54 of the rotor shaft 58. The liquid level of the fiber suspension is typically in a range 10 - 20 cm above the axis of rotation 54 of the rotor shaft 58, so that the inflow area is thus below the liquid level of the fiber suspension.This significantly reduces turbulences that can lead to stress on the rotor shaft 58 when the dissolved fibers flow into the fiber suspension already present in the sorting module 50. Since, according to the invention, the rotor shaft 18 of the first rotor 17 of the dissolving module 10 and the rotor shaft 58 of the second rotor 57 of the sorting module 50 are connected to one another and form a common shaft, reducing vibrations of the rotor shaft 18, 58 caused by turbulence of the inflowing fiber suspension is important for the stability and reliability of the rotor shaft 18, 58.

[0048] In particular, in the inlet area of ​​the sorting module 50, the screen 53 can have a very low height and be provided essentially only in the bottom area of ​​the housing 52. In a further embodiment, it can also be provided that the screen 53 is arranged only after the inlet area in the sorting module 50, thus making the inlet area screen-free.

[0049] As shown in Fig. 5, a plurality of spray nozzles 128 for a liquid, in particular water, are advantageously arranged on at least one side wall of the sorting module 50 in the region of a reject discharge opening 127. The spray nozzles 128 are in particular aligned axially in the direction of the axis of rotation 54 of the rotor shaft 58. The liquid exits the spray nozzles 128 at a flow velocity in the range of 5-8 m / s and at high pressure and strikes the reject. Due to the high velocity and high pressure of the liquid jet, the reject is accelerated towards the reject discharge opening 127, so that the reject can be discharged from the sorting module 50 efficiently and in a targeted manner. The number and dimensions of the spray nozzles 128 can vary and, in particular, can be adapted to the properties of the fiber suspension and thus of the reject in order to achieve a high transport effect on the reject.

[0050] As shown in Fig. 6, additional guide elements 129 can be arranged on the side walls of the sorting module 50. These guide elements extend into the transport path of the fiber suspension and are, for example, tooth-shaped and adjustable. The guide elements 129 influence the transport flow of the fiber suspension in such a way that it is directed in a targeted manner toward the clearing elements 59, enabling efficient processing of the fiber suspension through the action of the clearing elements 59.

[0051] Due to the coupling of the dissolving module 10 to the sorting module 50 by the shared rotor shaft, it is also possible to design the liquid supply for the dissolving module 10 and the sorting module 50 more efficiently, since the supply lines for the liquid, in particular water, can be made shorter relative to their length. As shown in Fig. 7, the sorting module 50 can comprise a production chamber 150 for producing the accepted material and an adjoining washing chamber 152 for the reject. However, it can also be provided that the washing chamber 152 is arranged in the reject module 80.

[0052] The washing chamber 152 is connected to a liquid supply line 170 through which a liquid, in particular water, is introduced into the washing chamber 152. By means of the liquid, the reject is subjected to a washing process, by means of which any fibers still present in the reject are washed out again in order to reuse them. However, since a considerable amount of liquid is consumed during this washing process, the invention provides for the liquid to be collected after the washing process, preferably in a collecting container 171, and to be drained off through a liquid discharge line 173. The liquid discharge line 173 has a first liquid branch 175 for the supply line to the production chamber 150 and a second liquid branch 177 for the supply line to the pulping module 10.The liquid used for the washing process can thus be used again both for the dissolution of the fibers in the dissolving module 10 and for the sorting of the dissolved fiber suspension in the sorting module 50.

[0053] In a further development, it may also be provided to connect the liquid discharge line 173 to the connecting device 124 in the region of the transport passage 125 upstream of the heavy part separation device 70. Overall, this can significantly reduce the liquid consumption, ie, in particular the water consumption, for the processing device 100 according to the invention, since the short transport paths enable dual use of the liquid.

[0054] By means of the processing device 100 according to the invention, the dissolution process of the fiber material and the sorting process of the fiber material suspension are integrated with one another.

[0055] Control of the stock consistency via a stock consistency measurement in the accepted stock is facilitated by a short control path. Fast feedback is possible based on a short stock residence time. The residence time in the pulping module 10 can be influenced by an adjustable weir 93 at the end of the pulping module 10. If the weir is moved upwards, the residence time in the pulping module 10 is increased. This simplifies the control of the stock consistency in the fiber suspension, since a stock consistency measurement in the accepted stock in the sorting module 50 and at a measuring device at the end of the pulping module 10 leads to coordinated results due to the transfer of the pulped fiber stock into the sorting module 50. In addition, the inventive integral concept enables higher empty stock densities of over 5% up to 7% to be achieved compared to conventional OCC applications.OCC = old corrugated container) with an LC pulper or a pulping drum.

[0056] The continuous pulping process leads to high process stability and effective material utilization of the pulp. In particular, the pulping module 10 enables pulping under HC conditions, so that a suspension density in the range of 12-30% can be achieved. The "kneading" treatment of the pulp in the pulping module 10 exerts sufficiently high shear forces on the still undissolved components to enable energy-efficient pulping of the pulp. A cutting disc 91 is provided in the pulping module. The cutting disc 91 ensures that the introduced material is thoroughly processed in the pulping module. Lifting elements 90 provided in front of the cutting disc convey the suspension via the cutting disc toward the outlet 92 of the pulping module 10.

[0057] The trough-shaped, upwardly open design of the dissolving module 10 and the large distance between the rotating and stationary surfaces in the range of 200 mm to 500 mm prevent jamming of larger heavy parts.

[0058] The heavy particle separation module 70, located between the pulping module 10 and the sorting module 50, prevents jamming due to foreign matter in the sorting module 50. This is of considerable importance because, due to the process, a small distance of less than 20 mm between rotating and stationary surfaces is required in the sorting module 50. The low peripheral speed of the common shaft, particularly less than 5 m / sec, combined with the large distances between rotating and stationary surfaces in the pulping module 10 and the intermediate heavy particle separation module 70, leads to low wear on the machine elements.

[0059] With the processing device 100 according to the invention, it is therefore possible to process even very large tonnages in the range of more than 2000 tons safely and efficiently due to the coupling of the dissolving module 10 with the sorting module 50 by the common rotor shaft.

[0060] Figure 8 comprises three sub-figures a to c. Figure 8 a) shows a three-dimensional sketch of the end region of the dissolving module. It shows the shaft 18 with the axis of rotation 14. The trough provided as the housing 12 has a partition 94 at its end. In front of the end partition, the shaft 18 is shown, by way of example, with only one lifting element 90. The lifting elements 90 ideally have a working surface that lies in a plane parallel to the axis of rotation 14. The working surfaces can also be slightly inclined, but not more than 30° or 20°. These working surfaces have an axial width that corresponds to 25% to 75% of the outlet 92 of the dissolving module. In order for the dissolved and diluted suspension to flow from the dissolving module 10 into the sorting module 50 by means of gravity, a height difference between the lowest position of the weir 93 and the maximum suspension level in the sorting module 50 is required.The height difference should be at least 35% of the shaft diameter. For a design with a shaft diameter of 1100 mm, this would be 385 mm. Furthermore, it is advantageous if the lower edge of the inlet 104 into the sorting module 50 is at least 10% to 20% lower than the maximum suspension level, based on the shaft diameter. Otherwise, the heavy particle separation device 70 would have to be raised to a higher level, which in turn would require a greater overall height difference.

[0061] It is therefore advantageous to lower the inlet 95 in the sorting module (as already described in the text). Additional lifting elements 90 are used at the end of the pulping module 10 to convey the suspension over the raised weir edge 123. The lifting elements are firmly connected to the rotor shaft 18. The weir edge 123 can also be considerably higher, since the production quantity is regulated by the position of the weir edge 123. The weir edge 123 can be raised by a provided adjustment up to a height of half the shaft diameter or 500 mm. The lower weir edge 123 is located in a range of 0.3 to 1.5 times the shaft diameter vertically above the rotation axis 14.

[0062] Figure 8 c) shows the lower edge 102 of the exit of the dissolving module 50. This lower edge 102 is located at a vertical height 103 above the rotational axes 14, 54 of the dissolving module 10 and the sorting module 50. The lower edge 104 of the inlet into the sorting module, also referred to as the sorting module entrance 95, is vertically below the rotational axis 54, 14. The vertical distance below the rotational axis 14, 54 is designated 105.

[0063] In the illustration, the sorting module 50 is provided with a partition 96 on the side facing the dissolving module 10. In the assembled form, the partitions 94 and 96 are arranged axially adjacent.

[0064] Reference numerals Processing device Pulping module Housing Rotor rotation axis Rotor shaft Working elements Feed module Feed hopper Drive module Sorting module Housing Screen Rotor rotation axis Rotor shaft Clearing element Heavy part separator Reject module Lifting element Separating disc Pulping module outlet; adjustable weir End-side partition wall of pulping module 10 Sorting module inlet Partition wall on the input side of sorting module 50 Lower edge of the pulping module outlet Vertical height above rotation axis Lower edge of inlet Vertical distance from the rotation axis Weir device 123 Weir edge, lower weir edge

[0065] 124 Connecting device (dilution)

[0066] 125 T ransport passage

[0067] 127 Reject discharge opening 128 Spray nozzle

[0068] 129 Guide element

[0069] 150 production space

[0070] 152 Washroom

[0071] 170 Liquid supply line 171 Collection tank

[0072] 173 Liquid drainage line

[0073] 175 first fluid branch

[0074] 177 second fluid branch

Claims

Patent claims Device (100) for processing fibrous materials, in particular fibrous materials with high stock densities in the HC range such as waste paper, comprising at least one pulping module (10) for pulping fibrous material into a fibrous material suspension and a sorting module (50) coupled to the pulping module (10) for subsequently sorting the dissolved fibrous material suspension, wherein the pulping module (10) comprises a housing (12) and a first rotor (17) arranged in the housing (12), and wherein the sorting module (50) comprises a housing (52) with a sieve (53) for separating the supplied fibrous material suspension into an accept and a reject and a second rotor (57) arranged in the housing (52), characterized in that the rotor shaft (18) of the first rotor (17) of the pulping module (10) and the rotor shaft (58) of the second rotor (57) of the sorting module (50) are connected to one another and form a common shaft.Device (100) according to claim 1, characterized in that a heavy part separation module (70) is arranged between the dissolving module (10) and the sorting module (50).Device (100) according to claim 1 or 2, characterized in that the housing (12) of the dissolving module (10) comprises a trough in the form of a bottom extending horizontally along a longitudinal axis and having a partially circular cross-section in its lower region, and the first rotor (17) comprises a rotor shaft (18) which is rotatably mounted about an axis of rotation (14) parallel to the longitudinal axis of the housing (12) and has working elements (19) arranged on the circumference thereon, wherein the working elements (19) can be brought into engagement with the fiber material, and wherein the housing (52) of the sorting module (50) comprises a trough extending horizontally along a longitudinal axis and having a bottom provided in its lower region with a sieve (53) which is bent in a partially circular cross-section, and wherein the second rotor (57) has a rotor shaft (18) which is rotatably mounted about an axis of rotation (14) parallel to the longitudinal axis of the housing (12). of the housing (52) parallel axis of rotation (54) comprises a rotatably mounted rotor shaft (58) with clearing elements (59) arranged on the circumference thereon for keeping the screen (53) clear and for loosening the rejects. Device (100) according to claim 3, characterized in that the trough of the housing (12) of the dissolving module (10) and the trough of the housing (52) of the sorting module (50) have, at least in their lower region, an inner wall that is partially circular, in particular semicircular, in cross-section. Device (100) according to one of claims 1 to 4, characterized in that the rotor shaft (18) of the first rotor (17) of the dissolving module (10) and the rotor shaft (58) of the second rotor (57) of the sorting module (50) are connected to one another and form a common shaft, and the trough of the dissolving module (10) borders the trough of the sorting module (50).Device (100) according to one of the preceding claims, characterized in that the rotor shaft (18) of the first rotor (17) of the dissolving module (10) and the rotor shaft (58) of the second rotor (57) of the sorting module (50) are designed as a single piece to form the common shaft. Device (100) according to one of the preceding claims, characterized in that a drive module (40) is provided for controlling and driving the common shaft consisting of the rotor shaft (18) of the first rotor (17) of the dissolving module (10) and the rotor shaft (58) of the second rotor (57) of the sorting module (50). Device (100) according to claim 7, characterized in that the common shaft can be driven at a maximum peripheral speed that is less than 10 m / s and preferably less than 5 m / s. Device (100) according to one of claims 2 to 7, characterized in that the heavy particle separation module (70) is arranged next to the housing (12) of the dissolving module (10) and the housing (54) of the sorting module (50). Device (100) according to one of claims 3 to 9, wherein the smallest radial distance between the working elements (19) and an inner wall of the housing (12) of the dissolving module (10) is approximately 200 mm, preferably 500 mm, and wherein the radial distance between the clearing elements (59) and an inner wall of the housing (52) of the sorting module (50) is less than 20 mm.Device (100) according to one of the preceding claims, characterized in that an inlet region of the sorting module (50) is designed such that the fiber suspension flows in below the rotor shaft (58), in particular in a region of 15 - 20 cm below the axis of rotation (54) of the rotor shaft (58). Device (100) according to claim 11, wherein in the inlet region of the sorting module (50) the sieve (53) has a very low height and is arranged essentially only in a lower floor region, or the inlet region is designed without a sieve and the sieve (53) is only arranged after the inlet region in the sorting module (50). Device (100) according to one of the preceding claims, characterized in that the dissolving module (10) has an outlet (92) with a. lower edge, also referred to as weir edge, and the weir edge (123) is arranged in the range of 0.3 to 1.5 times the shaft diameter of the rotor shaft (18) in the pulping module (10) vertically above the axis of rotation (14) in the pulping module. Device according to one of the preceding claims, characterized in that the rotor shaft (14) of the pulping module (10) is provided with at least one lifting element (100) for conveying fiber suspension out of the pulping module (10). Device according to claim 14, characterized in that a vertical height difference is provided between the outlet of the pulping module (10) and the inlet (95) of the sorting module (50), so that the flow of fiber suspension from the pulping module (10) to the screening module (50) via the heavy particle separation device takes place without the interposition of a pump.

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