Palpa with deflake elements

Abstract

The defibringing and deflaked pulper has a defibringing rotor-stator pair and a deflaked rotor-stator pair to process fibrous materials into smaller fragments. The defibringing and deflaked pulper generates a vortex circulation formed by the impeller, which draws the material through the defibringing rotor-stator interface, where it is broken down into smaller fragments, and then draws the material through the deflaked rotor-stator interface, where it is broken down into even smaller fragments. The defibringing and deflaked pulper accumulates the defibringed and further deflaked material that has passed through the defibringing rotor-stator interface and the deflaked rotor-stator interface for further processing. This combination of defibringing and deflaked in the defibringing and deflaked pulper reduces clogging by large material fragments and reduces downstream material processing, thereby improving productivity and lowering costs.

Description

Cross - reference to related applications

[0001] No related applications. Research or development funded by the federal government

[0002] Not research or development funded by the federal government.

Technical Field

[0003] The present disclosure relates to a pulper having a deflaking element.

Background Art

[0004] Pulping is a process of fragmenting fibrous raw materials, then flaking them, and finally decomposing them into individual fibers. Usually, a pulper is used to initially decompose or defibrate the material and subdivide it into slurry - like fragments. A pulper typically decomposes the fibrous material without using steam or chemicals until it reaches a point where it can be pumped to a downstream process for a second decomposition or deflaking of the material into smaller fragments. The smaller fragments can be used to manufacture new products, such as paper, carpet, etc., or can be further processed.

[0005] In a typical pulper, the fibrous material is usually mixed with water in a tank containing a rotor that causes circulation. The material is mainly decomposed in a relatively small zone where there is sufficient turbulence and shear force directly adjacent to the spinning rotor. In contrast, a tornado pulper has a rotor - stator pair configured to capture and cut the material. Here, the rotor, during operation, creates a swirling circulation formed by an impeller, and this swirling circulation draws the material and water through the rotor - stator interface, where the material is decomposed into smaller fragments having an appropriate size and consistency. The inner edge of the stator and the outer edge of the rotor form a cutting surface that forms an action similar to scissors when the material passes through the rotor - stator interface, which may be conical or cylindrical.

[0006] The materials can include wood pulp, cotton, hemp, flax, straw, rugs, leather, non-wood fibers, impregnated fiber materials, carpets, textiles, wet paper or boards, synthetic fibers, and fiber materials bonded with adhesives. Other materials can also be used, and the pulp and subsequent processing can further subdivide them into smaller pieces to produce a variety of products. Each of these different materials has specific processing requirements that the pulp must adapt to. Various types of pulps have been developed to address the processing of diverse materials.

[0007] Patent Document 1 discloses a method and apparatus for pulp formation and defibrillation, which includes a circulating impeller capable of cooperating with a friction interface for defibrillating or dissociating a circulating material.

[0008] Patent Document 2 discloses an apparatus and method for defibringing amorphous materials, which can process difficult-to-defibring raw materials such as hemp, flax, rugs, leather, synthetic fibers, wet-strength paper, sheet materials or other types of raw materials consisting of fibrous elements bonded together by various adhesives, using a swirling circulation pulper with a predetermined blade clearance of about 15 / 1000 inches (about 0.381 mm), thereby avoiding wear and tear at zero clearance.

[0009] Patent Document 3 discloses a grooved pulp rotor for producing a slurry from a mixture of solid and liquid materials, which is generally used in cylindrical or vat-shaped pulping apparatus for purposes such as papermaking. The grooved pulp rotor includes a rotor hub having at least one vane extending radially from the rotational axis of the rotor hub.

[0010] Patent Document 4 discloses a toroidal flow pulper for hard materials, including a stock-holding tank with a rotor-stator pair mounted inside the tank, typically on the side wall of the tank. A motor and drive shaft rotate the rotor within the stator.

[0011] Patent Document 5 discloses a carpet recycling method using toroidal flow pulp, in which the carpet is dissociated in a predetermined amount of liquid to form a slurry of fibrous carpet material and carpet ash.

[0012] Patent Document 6 discloses a carpet recycling process and method using toroidal flow pulp, in which carpet fragments are dissociated in a predetermined amount of liquid to form a slurry of fibrous carpet material and carpet ash.

[0013] Initial material decomposition or defibering can form large fragments that may clog the pulper. When this occurs, the pulper must be stopped to remove or release the clogged material. Additionally, the material at the pulper outlet is typically a slurry of the material in water. This slurry must be properly stored or processed for subsequent material processing or deflakening into smaller fragments. These processing concerns often lead to less-than-desirable material processing within the pulper, thereby increasing the operational costs of the pulp formation process.

[0014] As can be understood from the above description, there is an ongoing need for simple and efficient improvements to the pulp formation process for fibrous materials that increase production volume and reduce costs. The present invention avoids, overcomes, or improves at least one of the drawbacks associated with conventional pulps. [Prior art documents] [Patent Documents]

[0015] [Patent Document 1] U.S. Patent No. 3,428,261 [Patent Document 2] U.S. Patent No. 4,365,761 [Patent Document 3] U.S. Patent No. 5918822 [Patent Document 4] U.S. Patent No. 6053441 [Patent Document 5] U.S. Patent Application Publication No. 2013 / 0174517 [Patent Document 6] U.S. Patent Application Publication No. 2021 / 0138480 [Overview of the Initiative]

[0016] A defiber ring and deflake pulper has a defiber ring rotor-stator pair and a deflake rotor-stator pair to process fibrous materials into smaller fragments. The defiber ring rotor and deflake rotor rotate, creating a vortex circulation formed by the impeller. This vortex circulation draws the material through the defiber ring rotor-stator interface, where it is broken down into smaller fragments (defiber ring or pulp formation), and then the material is drawn through the deflake rotor-stator interface, where it is broken down into even smaller fragments (deflake). The defiber ring and deflake pulper accumulates the defiber ring and further deflaked material for further processing.

[0017] In one embodiment, the general concept of the present invention provides a defiber ring and a deflaking pulper for processing fibrous materials into smaller fragments. Various exemplary embodiments of the defiber ring and deflaking pulper according to various embodiments of the general concept of the present invention can be achieved by providing a base having a pulper body that forms a chamber. In various embodiments, a shaft can be suspended by at least one bearing attached to the base. A defiber ring rotor-stator pair and a deflaking rotor-stator pair can be mounted on the shaft axially. The deflaking rotor-stator pair can be positioned between the defiber ring rotor-stator pair and the chamber.

[0018] In another embodiment, various features according to the general concept of the present invention can be achieved by providing a defiber ring and a deflaked pulper for processing fibrous materials into smaller fragments. The defiber ring and deflaked pulper may comprise a base having a pulper body that forms a chamber. A shaft can be suspended by at least one bearing that can be attached to the base. A defiber ring stator may be a stationary element that can be attached to the pulper body. A defiber ring rotor may be attached to the shaft axially. In various embodiments, the defiber ring rotor may be a rotating element that is mounted in close proximity to the defiber ring stator to form a defiber ring rotor-stator interface. A deflaked stator may be mountable to the pulper body and alignable with respect to the defiber ring rotor-stator interface. In various embodiments, the deflaked stator may be an annular stationary deflaked element. The deflaked rotor may be an annular rotating deflaked element attached to the defiber ring rotor. The deflaked rotor can be in close proximity to the deflaked stator to form a deflaked rotor-stator interface.

[0019] Other systems, methods, features, and advantages of the general concept of the present invention will be apparent to those skilled in the art, based on the following figures and detailed description. All such additional systems, methods, features, and advantages are also included herein, within the scope of the general concept of the present invention, and are intended to be protected by the following claims. [Brief explanation of the drawing]

[0020] Various aspects of the general concept of the present invention can be better understood by referring to the following drawings and description. The components in the drawings are not necessarily drawn to scale and are intended to illustrate the basic method of the present invention. Furthermore, the same reference numerals in the drawings designate corresponding components throughout the various drawings. [Figure 1] It is a side schematic view showing an embodiment of a defibering and deflaking pulper. [Figure 2A] It is an axial view showing various embodiments of a deflaking rotor that can be used in the embodiment of the defibering and deflaking pulper of FIG. 1. [Figure 2B] It is a radial view showing various embodiments of a deflaking rotor that can be used in the embodiment of the defibering and deflaking pulper of FIG. 1. [Figure 3A] It is an axial view showing various embodiments of a deflaking stator that can be used in the embodiment of the defibering and deflaking pulper of FIG. 1. [Figure 3B] It is a radial view showing various embodiments of a deflaking stator that can be used in the embodiment of the defibering and deflaking pulper of FIG. 1. [Figure 4] It is an axial cross-sectional view showing an embodiment of a deflaking rotor-stator interface formed by a deflaking rotor and a deflaking stator in the defibering and deflaking pulper of FIG. 1.

Embodiments for Carrying out the Invention

[0021] In Figure 1, the defiber ring and deflaked pulper 1000 has a defiber ring rotor-stator pair and a deflaked rotor-stator pair to process fibrous material into smaller fragments. The defiber ring and deflaked pulper 1000 protrude through the tank wall 120 of a container that holds the fibrous material and water selected for processing. The defiber ring rotor-stator pair and the deflaked rotor-stator pair are axially mounted on a shaft 80 by a hub 60 with a sleeve, the shaft 80 is suspended by bearings 70 and 90 mounted on a base 110. A motor engages with the shaft 80 during operation, thereby rotating the defiber ring rotor-stator pair and the deflaked rotor-stator pair. The defiber ring rotor-stator pair is located inside the container and faces the incoming fibrous material. The deflaked rotor-stator pair is located between the defiber ring rotor-stator pair and the inside of the pulper chamber wall. Base 110 is connected to a pulpa body that forms a chamber 10 on the opposite side of the container from the defiber ring rotor-stator pair.

[0022] During operation, the defiber ring and deflake pulper 1000 generates a vortex circulation formed by the impeller, which draws material and water through the defiber ring rotor-stator interface, where the material is broken down into smaller fragments (defiber ring or pulp formation), and then drawn through the deflake raking rotor-stator interface, where it is broken down into even smaller fragments (deflake). The defiber ring and deflake pulper 1000 accumulates the defiber ring and further deflaked material as it passes through the defiber ring rotor-stator interface and the deflake raking rotor-stator interface in the chamber 10. The defiber ring and further deflaked material is present in the chamber 10 through the outlet 100 for further processing. This combination of defiber ring and deflake in the defiber ring and deflake pulper 1000 reduces clogging by large material fragments, reducing downstream material processing, thus improving productivity and lowering operating costs.

[0023] The defibringing rotor-stator pair includes a defibringing stator 20 and a defibringing rotor 30. The defibringing stator 20 has teeth or other cutting edges on its surface and is a stationary element mounted on a pulper body. The pulper 1000 is bolted to a clamping ring that engages with the tank wall 120. The defibringing rotor 30 also has teeth or other cutting edges on its surface, but this rotor 30 is a rotating element mounted on a hub 60 with a sleeve. The hub 60 is fitted onto a shaft 80 which is rotated by a motor. The shaft 80 is supported by bearings 70 and 90 mounted on a base 110. The defibringing rotor 30 is positioned to rotate in close proximity to the defibringing stator 20, thereby forming a defibringing rotor-stator interface where the material is pulped or broken down into even smaller fragments. The defibringing rotor 30 has a nose cone 40 positioned on the side of the tank in the axial direction, which assists in the orientation of material and water to the defibringing rotor-stator interface.

[0024] The deflaked rotor-stator pair comprises a deflaked stator 200 and a deflaked rotor 210, and is positioned downstream of the defiber ring rotor-stator pair, adjacent to the chamber 10 formed by the pulper body. The deflaked stator 200 is an annular stationary deflaked element mounted on the inner wall of the pulper body at the discharge portion of the defiber ring rotor-stator interface, aligned with the interface. The deflaked stator 200 has substantially the same inner diameter as the defiber ring stator 30 at this point. The deflaked rotor 210 is an annular rotating deflaked element mounted on the chamber-side surface of the defiber ring rotor 30. The deflaked rotor 210 rotates at the same speed as the defiber ring rotor 30 and has substantially the same outer diameter as the defiber ring rotor 30 at this point. The deflake rotor 210 is positioned to rotate in close proximity to the deflake stator 200, thereby forming a deflake rotor-stator interface where the deflaked material is deflaked or broken down into smaller fragments than the fibrous material that has passed through the deflaked rotor-stator interface.

[0025] Figures 2A and 2B show axial and radial views of a deflaked rotor 210 having a deflaked rotor inner surface 211 and a deflaked rotor outer surface 212, respectively. The radial view in Figure 2B shows some of the various embodiments of the deflaked rotor outer surface 212 of the deflaked rotor 210. The deflaked rotor outer surface 212 faces the deflaked stator 200 at the deflaked rotor-stator interface. In various embodiments, the deflaked rotor outer surface 212 has a plurality of projections that extend radially outward in a circular manner from the deflaked rotor outer surface 212, thereby deflaked material passing through the deflaked rotor-stator interface. As shown in Figure 2B, in various embodiments, the plurality of projections may include shapes such as rotor bars 213 and 214, rotor holes or openings 216, dimples, knobs, other shapes, or combinations thereof. Overall, the shapes or combinations of shapes of the multiple protrusions are understood to be spaced apart around the entire outer surface 212 of the deflaked stator 210. However, it should be understood that this kind of "equally spaced arrangement" configuration is not essential to achieving a deflaked rotor 210 that is consistent with the overall concept of the present invention. For example, in other embodiments, the shapes of the multiple protrusions can be defined on only a portion of the outer surface 212 of the deflaked rotor. In yet another embodiment, the shapes of the multiple protrusions can together be grouped into multiple clusters, where these clusters of protrusion shapes are distributed around the outer surface 212 of the deflaked rotor 210 in a predetermined pattern or even randomly.

[0026] In one preferred embodiment, the deflaked rotor outer surface 212 has a plurality of parallel rotor bars 213 parallel to the main axes of the defiber ring and deflaked pulper 1000. In another preferred embodiment, the deflaked rotor outer surface 212 has a plurality of angled rotor bars 214 that form a predetermined angle with respect to the main axes of the defiber ring and deflaked pulper 1000. Preferably, the angled rotor bars 214 have an angle of about 50° or less on either side of the longitudinal axis. Other angles are also possible. The rotor bars 213 and 214 may have substantially the same width, or they may have a variable width selected to optimize deflaked depending on process requirements. Preferably, the rotor bars 213 and 214 have a width of about 0.125 inches (3.175 mm) to about 1 inch (25.4 mm). The rotor bars 213 and 214 are separated by voids or passages 215 that allow material to enter the chamber 10 through the deflaked rotor-stator interface or zone and then exit through the outlet 100. The outer surface of the deflaked stator 212 may have a first rotor weir 217 and a second rotor weir 218 or other obstacles positioned laterally across the rotor bars 213 and 214, thereby forcing the material to be cut, shredded or otherwise broken down into smaller sizes across the deflaked rotor-stator interface.

[0027] Figures 3A and 3B show axial and radial views of a deflaked stator 200 having a deflaked stator inner surface 201 and a deflaked stator outer surface 202, respectively. The radial view in Figure 3B shows some of the various embodiments of the deflaked stator inner surface 201 of the deflaked stator 200 facing the deflaked rotor 210 at the deflaked rotor-stator interface. Similar to the deflaked rotor outer surface 212 described above, the deflaked stator inner surface 201 has a plurality of protrusions for deflaked material passing through the deflaked rotor-stator interface. In various embodiments, the plurality of protrusions may include, for example, stator bars 203 and 204, stator holes or openings 206, other shapes, or combinations thereof. The plurality of protrusions can be configured to correspond to a plurality of projections of the deflaked rotor 210 in order to optimize the processing throughput of fibrous material by the defiber ring and deflaked pulp 1000. For example, in various embodiments, multiple protrusions can be selected to be substantially identical to multiple projections on the outer surface 212 of the deflake rotor, i.e., to be mirror images of each other.

[0028] In one preferred embodiment, the inner surface of the deflaked stator 201 has a plurality of parallel stator bars 203 parallel to the main axes of the defiber ring and deflaked pulper 1000. In another preferred embodiment, the inner surface of the deflaked stator 201 has a plurality of angled stator bars 204 that form a predetermined angle with respect to the main axes of the defiber ring and deflaked pulper 1000. Preferably, the angled stator bars 204 have an angle of up to about 50° to either side of the longitudinal axis. Other angles are also possible. The stator bars 203 and 204 may have substantially the same width, or they may have a variable width selected to optimize deflaked depending on process requirements. Preferably, the stator bars 203 and 204 have a width of about 0.125 inches (3.175 mm) to about 1 inch (25.4 mm). The stator bars 203 and 204 are separated by voids or passages 205 that allow material to enter the chamber 10 through the deflaked rotor-stator interface or zone and exit through the outlet 100. The inner surface of the deflaked stator 201 may have stator weirs 207 or other obstacles positioned laterally across the stator bars 203 and 204, thereby forcing the material to be cut, shredded or otherwise broken down into smaller sizes across the deflaked rotor-stator interface.

[0029] Figure 4 shows an axial cross-sectional view of the deflaked rotor-stator interface formed by the deflaked rotor 210 and the deflaked stator 200 in the defiber ring and deflaked pulper 1000.

[0030] During the operation of the defiber ring and deflake pulper 1000, fibrous material is introduced into the tank along with water. A motor rotates shaft 80, thereby rotating the defiber ring rotor-stator pair and the deflake pulper rotor-stator pair. The material circulates within the tank, gaining initial wettability, then passes through the defiber ring rotor-stator interface along the streamlines AA and BB in Figure 1, and then is drawn out through the deflake pulper rotor-stator interface. Furthermore, as the material moves through the narrow gap between the defiber ring rotor and the defiber ring stator, it is broken down by the tearing / cutting action of the teeth. Subsequently, as the material moves through the narrow gap between the deflake pulper rotor 210 and the deflake pulper stator 200, the defiber ringed or pulped material is further broken down by the tearing / cutting action of the protrusions and projections. The deflaked material then flows into the chamber 10 and out through outlet 100. The deflaked material may continue to flow downstream for further processing or may be returned to a container.

[0031] To handle substantially the same throughput of fibrous material as conventional pulpers, the defibring and deflaked pulper 1000 has a chamber 10 configured to hold a different volume and mass of deflaked material than the chambers that hold the defibringed material in conventional pulpers. Similarly, one or more of the shaft 80, bearings 70 and 90, hub 60 with sleeve, and other elements of the defibring and deflaked pulper 1000 are formed from and configured to handle the torque and other stresses that operate the defibring rotor-stator pair and the deflaked rotor-stator pair better than similar components in conventional pulpers. The motor output, speed, and torque of the defibring and deflaked pulper 1000 are configured to operate the defibring rotor-stator pair and the deflaked rotor-stator pair differently from the motor of a conventional pulper. The teeth of the defibring rotor-stator pair in the defibring and deflaked pulper 1000 can be configured differently from the teeth in conventional pulpers.

[0032] To provide a clearer and more consistent understanding of the specification and claims of this application, the following definitions are provided:

[0033] All numbers representing quantities used herein and in the claims should be understood to represent both the exact value and the value modified by the word “approximately.” Therefore, unless otherwise indicated, the numerical values ​​in the specification and claims are approximations that may vary depending on the margin of error in determining the desired properties and values ​​to be obtained. At a minimum, each numerical parameter should be interpreted by applying ordinary rounding techniques, at least in light of the margin of error and the reported number of significant figures, and not with the intention of limiting the application of the doctrine of equivalents to the claims.

[0034] If a range is given, unless the context clearly states otherwise, each intervening value up to 1 / 10 of the lower limit unit between the lower and upper limits of that range is included in that range.

[0035] In this specification, the words “a,” “an,” and “the” should be interpreted as covering both singular and plural forms, unless the context otherwise states or does not contradict the context. No word in this specification should be interpreted as indicating that any element not included in the claims is essential for the implementation of the invention.

[0036] Terms describing spatial relativity, such as "up," "down," "top," "bottom," "right," "left," "beneath," "below," "lower," "above," and "upper," may be used to facilitate descriptions of the relationship between one element or feature shown in the figure and other elements or features. These spatial relativity terms are intended to encompass various orientations of the device during use or operation, in addition to the orientation shown in the figure. For example, if the device in the figure is inverted or rotated, other elements or features described as being "below" or "below" one element or feature will face "above" that element or feature. Therefore, the exemplary term "below" may encompass both upward and downward orientations. The device may also be oriented in a different orientation (by rotating it 90° or in other orientations) and interpreted using the spatial relativity descriptors used herein.

[0037] While the simplified graphs and diagrams do not illustrate all possible connection and assembly configurations of the various components, those skilled in the art should be able to understand how these configurations are realized based on the illustrated components, diagrams, and accompanying descriptions.

[0038] Although various aspects of the present invention have been described, those skilled in the art will understand that other embodiments and realizations are possible within the scope of the present invention. Therefore, the present invention should not be limited in any form other than in light of the appended claims and their equivalents.

Claims

1. A defiber ring and deflake pulper for processing fibrous materials into smaller fragments, A base having a pulpa body that forms a chamber, A shaft suspended by at least one bearing attached to the base, A pair of defiber ring rotor-stator and a pair of deflaked rotor-stator mounted on the shaft in the axial direction, wherein the pair of deflaked rotor-stator is positioned between the pair of defiber ring rotor-stator and the chamber. A defiber ring and deflake pulp comprising.

2. The defibringing rotor-stator pair has a defibringing stator that is in close proximity to the defibringing rotor and forms a defibringing rotor-stator interface, where the defibringing stator is a stationary element attached to the pulpa body, and the defibringing rotor is a rotating element attached to the hub. The deflaked rotor-stator pair includes a deflaked stator that is in close proximity to the deflaked rotor and forms a deflaked rotor-stator interface, wherein the deflaked stator is an annular stationary deflaked element attached to the pulper body and aligned with respect to the deflaked rotor-stator interface, and the deflaked rotor is an annular rotating deflaked element attached to the deflaked rotor, as described in claim 1, for the deflaked rotor and deflaked pulper.

3. The deflake stator has substantially the same inner diameter as the deflake ring stator, The defraking rotor has substantially the same outer diameter as the defraking ring rotor, as described in claim 2, for the defraking ring and defraking pulper.

4. The deflake rotor has an outer surface having a plurality of protrusions, The deflaving stator has an inner surface having a plurality of protrusions, as described in claim 1, for the deflaving ring and deflaving pulp.

5. The defiber ring and deflake pulper according to claim 4, wherein the plurality of protrusions are substantially the same as the plurality of projections.

6. The aforementioned multiple protrusions are rotor bars separated by rotor passages, and these rotor bars have a width of approximately 0.125 inches (3.175 mm) to approximately 1 inch (25.4 mm). The aforementioned multiple protrusions are stator bars separated by stator passages, and these stator bars have a width of approximately 0.125 inches (3.175 mm) to approximately 1 inch (25.4 mm). The defiber ring and deflake pulp according to claim 4.

7. The defiber ring and deflake pulper according to claim 6, wherein the rotor bar is a parallel rotor bar and the stator bar is a parallel stator bar.

8. The rotor bar is an angled rotor bar having an angle of approximately 50° or less. The stator bar is an angled stator bar having an angle of approximately 50° or less on either side of the longitudinal axis. The defiber ring and deflake pulp according to claim 6.

9. moreover, At least one rotor weir is arranged laterally across the rotor bar, At least one stator weir arranged laterally across the stator bar and The defiber ring and deflake pulp according to claim 6, comprising:

10. The defiber ring and deflake pulper according to claim 4, wherein the plurality of protrusions form rotor holes and the plurality of projections form stator holes.

11. A defiber ring and deflake pulper for processing fibrous materials into smaller fragments, A base having a pulpa body that forms a chamber, A shaft suspended by at least one bearing attached to the base, A defiber ring stator, which is attached to the aforementioned pulpa body and is a stationary element, A rotating element, the defiber ring rotor, is attached to the shaft in the axial direction and is mounted in close proximity to the defiber ring stator to form a defiber ring rotor-stator interface, A deflake stator, which is attached to the pulpa body, is aligned with the defiber ring rotor stator interface, and is an annular stationary deflake element, An annular rotating deflake element attached to the deflake ring rotor, and which is in close proximity to the deflake stator and forms a deflake rotor-stator interface, and A defiber ring and deflake pulp comprising.

12. The deflake stator has substantially the same inner diameter as the deflake ring stator, The defraking rotor has substantially the same outer diameter as the defraking ring rotor, according to claim 11, the defraking ring and defraking pulper.

13. The deflake rotor has an outer surface having a plurality of protrusions, The deflaving stator, the deflaving ring and deflaving pulp according to claim 11, having an inner surface of the deflaving stator having a plurality of protrusions.

14. The defiber ring and deflake pulper according to claim 13, wherein the plurality of protrusions are substantially the same as the plurality of projections.

15. The aforementioned multiple protrusions are rotor bars separated by rotor passages, and these rotor bars have a width of approximately 0.125 inches (3.175 mm) to approximately 1 inch (25.4 mm). The aforementioned multiple protrusions are stator bars separated by stator passages, and these stator bars have a width of approximately 0.125 inches (3.175 mm) to approximately 1 inch (25.4 mm). The defiber ring and deflake pulp according to claim 13.

16. The defiber ring and deflake pulper according to claim 15, wherein the rotor bar is a parallel rotor bar and the stator bar is a parallel stator bar.

17. The rotor bar is an angled rotor bar having an angle of approximately 50° or less. The stator bar is an angled stator bar having an angle of approximately 50° or less. The defiber ring and deflake pulp according to claim 15.

18. moreover, At least one rotor weir is arranged laterally across the rotor bar, At least one stator weir arranged laterally across the stator bar and The defiber ring and deflake pulp according to claim 15, comprising:

19. The defiber ring and deflake pulper according to claim 13, wherein the plurality of protrusions form rotor holes and the plurality of projections form stator holes.

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