Stirring machine for pulping and pulping system

Abstract

The invention discloses a stirrer for pulping and a pulping system. The stirrer for pulping comprises a material barrel, a stirring device and a conveying device, the material barrel is used for containing a mixed material and is provided with a discharge hole; the stirring device is arranged on one side of the material barrel, communicates with the discharging opening and is used for stirring the mixed materials conveyed by the material barrel; the conveying device is used for conveying the stirred mixed material into the material barrel; the conveying device comprises a first pipeline, a second pipeline and a third pipeline; the first pipeline is communicated with the stirring device, the third pipeline is communicated with the material barrel, and two ends of the second pipeline are respectively communicated with the first pipeline and the third pipeline; one-way valves are arranged on the first pipeline, the second pipeline and the third pipeline; a communication port of the first pipeline and the second pipeline is positioned between the material barrel and the one-way valve on the first pipeline; and a communicating port of the second pipeline and the third pipeline is positioned between the two one-way valves on the third pipeline.

Description

Technical Field

[0001] The invention relates to the field of pulping, and in particular to a pulping mixer and a pulping system. Background Art

[0002] Pulping refers to the process of mixing water and solid raw materials (such as clay, cement, etc.) to form slurry. In actual operation, in order to obtain slurries with different target water-to-material ratios, it is first necessary to use a mixer to stir water and solid raw materials to prepare raw slurry that meets a specific water-to-material ratio.

[0003] However, the existing pulping mixers are prone to uneven and insufficient mixing, and require additional water to flush some parts externally to cool them down, and cannot effectively achieve self-cooling. Summary of the invention

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art.

[0005] To this end, the present invention provides a pulping mixer, which can achieve full stirring of the mixed material.

[0006] The present invention also provides a pulping system having the pulping mixer.

[0007] A pulping mixer according to a first aspect of the present invention includes a material barrel, a stirring device and a conveying device;

[0008] The material barrel is used to hold the mixed material, and the material barrel has a discharge port;

[0009] The stirring device is disposed on one side of the material barrel and communicated with the discharge port, and is used to stir the mixed material conveyed by the material barrel; and

[0010] The conveying device is used to convey the stirred mixed material into the material barrel; the conveying device includes a first pipeline, a second pipeline and a third pipeline; the first pipeline is connected to the stirring device, and the third pipeline is connected to the material barrel; the first pipeline, the second pipeline and the third pipeline are all provided with a one-way valve; the connecting port of the first pipeline and the second pipeline is located between the stirring device and the one-way valve on the first pipeline; the connecting port of the second pipeline and the third pipeline is located between the two one-way valves on the third pipeline;

[0011] When the stirring device is working, the one-way valve on the first pipeline is closed, the one-way valve on the second pipeline is opened, the one-way valve on the third pipeline close to the material barrel is opened, and the one-way valve on the third pipeline away from the material barrel is closed.

[0012] According to some embodiments of the present invention, a filter screen is provided at the upper opening of the material barrel.

[0013] According to some embodiments of the invention, the stirring device includes a first shell and a second shell arranged vertically, the first shell is located at the lower end of the second shell, the first shell and the second shell both have a hollow cavity structure and the cavities of the first shell and the second shell are connected, and a stirring mechanism for stirring the mixed material is arranged in the cavity of the first shell; the cavity of the second shell is connected to the discharge port, so that the mixed material in the material barrel enters the first shell through the discharge port and the second shell for stirring.

[0014] According to some embodiments of the invention, the stirring device also includes a third shell, a fourth shell and a stirring motor, the third shell and the fourth shell are vertically arranged in sequence at the upper end of the second shell, and the stirring motor is installed at the upper end of the fourth shell; the stirring mechanism includes a stirring shaft and a plurality of stirring blades, the stirring shaft is vertically arranged, and the plurality of stirring blades are vertically evenly distributed at the lower end of the stirring shaft and fixedly connected to the lower end side wall of the stirring shaft; the upper end of the stirring shaft passes through the cavities of the first shell, the second shell, the third shell and the fourth shell in sequence and is connected to the motor shaft of the stirring motor.

[0015] According to some embodiments of the present invention, a plurality of notches for heat dissipation are circumferentially formed on the lower side wall of the third shell.

[0016] According to some embodiments of the invention, the stirring mechanism also includes a support plate and a connecting cylinder, wherein the support plate is horizontally arranged at the bottom end of the stirring shaft, the support plate is disc-shaped as a whole, and there is a gap between its edge and the cavity of the first shell; the connecting cylinder is vertically arranged at the upper end of the support plate, the connecting cylinder has a hollow cavity structure, a plurality of stirring blades are vertically evenly distributed on the circumferential outer wall of the connecting cylinder and abut against the upper end of the support plate, and the connecting cylinder is inserted into the stirring shaft and is interference-connected with the stirring shaft.

[0017] According to some embodiments of the invention, one end of the first pipe extends into the cavity of the first shell so that the cavity of the first pipe is connected to the cavity of the first shell; one end of the third pipe extends into the upper cavity of the material barrel so that the cavity of the third pipe is connected to the cavity of the material barrel.

[0018] According to some embodiments of the present invention, a strip-shaped reflux port is provided on a side wall of one end of the third pipe extending into the material barrel and directed toward the center of the material barrel.

[0019] According to some embodiments of the invention, a flow box is further included, which has a hollow cavity structure. The flow box is horizontally arranged at the outer bottom end of the material barrel, and the cavity of the flow box is connected to the discharge port of the material barrel and the cavity of the second shell.

[0020] The pulping mixer according to the embodiment of the present invention has at least the following beneficial effects: water and solid raw materials are mixed in the material barrel to form a mixture, which is then sent to the stirring device for stirring, and the stirring device then sends the stirred mixture into the material barrel through the conveying device. The conveying device includes a first pipeline, a second pipeline and a third pipeline; the first pipeline is connected to the stirring device, the third pipeline is connected to the material barrel, and the two ends of the second pipeline are respectively connected to the first pipeline and the third pipeline; the first pipeline, the second pipeline and the third pipeline are all provided with a one-way valve; the communication port of the first pipeline and the second pipeline is located between the one-way valve on the material barrel and the first pipeline; the communication port of the second pipeline and the third pipeline is located between the two one-way valves on the third pipeline; when the stirring device is working, the one-way valve on the first pipeline is closed to prevent the mixed material from being discharged to the outside; the one-way valve on the second pipeline is opened, the one-way valve on the side of the third pipeline close to the material barrel is opened, and the one-way valve on the side of the third pipeline away from the material barrel is closed. In this way, the second pipeline is connected to the third pipeline to form a closed pipeline, and the mixed material can be stirred by the stirring device repeatedly, so that the material can be stirred evenly and fully.

[0021] The pulping system according to the second embodiment of the present invention comprises the pulping mixer as described above.

[0022] The pulping system according to the embodiment of the present invention has at least the following beneficial effects: the pulping mixer described in any one of the above technical solutions is adopted, and therefore, all the beneficial effects of the pulping mixer described in any one of the above embodiments are possessed, which are not listed one by one here.

[0023] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0025] Figure 1 A schematic structural diagram of a pulping mixer according to an embodiment of the present invention from one angle;

[0026] Figure 2 It is a structural schematic diagram of the pulping mixer from another angle according to an embodiment of the present invention;

[0027] Figure 3 This is a schematic diagram of the internal structure of a material barrel according to an embodiment of the present invention;

[0028] Figure 4 is a cross-sectional view of a stirring device according to an embodiment of the present invention;

[0029] Figure 5 This is a schematic structural diagram of a third pipeline in a material barrel according to an embodiment of the present invention.

[0030] Reference numerals:

[0031] Material barrel 100, filter screen 110, separation sheet 120, separation rod 130

[0032] Stirring device 200, first housing 210, stirring mechanism 211, stirring blade 2111, stirring shaft 2112, support plate 2113, connecting tube 2114, second housing 220, third housing 230, notch groove 231, fourth housing 240, stirring motor 250

[0033] Conveying device 300, first pipeline 310, second pipeline 320, third pipeline 330, reflux port 331, one-way valve 340

[0034] Circulation box 400

[0035] Bracket 500 DETAILED DESCRIPTION

[0036] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0037] In the description of the present invention, it should be understood that, with respect to descriptions of orientation, the orientations or positional relationships indicated by terms such as “center, longitudinal, lateral, length, width, thickness, up, down, front, back, left, right, vertical, horizontal, top, bottom, inside, outside, circumferential, radial, and axial” are based on the orientations or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0038] In the description of the present invention, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood as not including the number itself, and "above", "below", "within" etc. are understood as including the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0039] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "set", "arrange", etc. should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0040] Combine the following Figures 1 to 5 A pulping agitator according to an embodiment of the first aspect of the present invention will be described.

[0041] like Figure 1 and Figure 2 As shown, the slurry mixer includes a material barrel 100, a stirring device 200 and a conveying device 300. The material barrel 100 is used to hold water and solid raw materials. The water and solid raw materials are mixed in the material barrel 100 to form a mixture, which then enters the stirring device 200 for stirring. The stirred mixture is then sent into the material barrel 100 by the conveying device 300 to be remixed with the unstirred mixture, and then enters the stirring device 200 for stirring again, and the cycle is repeated until the mixture is fully stirred, and finally a slurry with a specific water-to-material ratio is formed.

[0042] like Figure 1 and Figure 2 As shown, in some specific embodiments of the present invention, a filter screen 110 is provided at the upper opening of the material barrel 100. The filter screen 110 has a grid-like structure, which can not only screen out solid raw materials that do not meet the specified size, but also to a certain extent prevent the material stirred by the stirring device 200 from splashing when it re-enters the material barrel 100. It should be noted that the size and shape of the grid on the filter screen 110 can be selected according to actual needs and are not specifically limited in this application.

[0043] like Figure 1 and Figure 2As shown, in some specific embodiments of the present invention, the upper part of the material barrel 100 is a cylindrical structure, and the lower part is an inverted truncated cone structure, and both the upper and lower parts have a hollow cavity, and the upper and lower cavities are connected. The filter screen 110 is horizontally arranged at the upper end opening of the upper cavity of the material barrel 100.

[0044] like Figure 3 As shown, in some specific embodiments of the present invention, a plurality of separation rods 130 are provided at a position near the discharge port of the lower cavity of the material barrel 100. When feeding, the falling solid raw materials and water will touch the separation rods 130 and be pre-mixed, so that the solid raw materials and water form a slurry before entering the stirring device 200, so that the stirring device 200 can work smoothly. A plurality of separation rods 130 form a separation frame, and a plurality of separation rods 130 can be provided in one piece, which simplifies the installation of the separation rods 130 and the material barrel 100 and reduces the manufacturing difficulty. It should be noted that the plurality of separation rods 130 include horizontal rods in a horizontal state and vertical rods in an upright state, which can stir the mixed material in all directions from the top and bottom directions and the horizontal direction, and prevent the mixed material from flowing directly along the barrel wall of the material barrel 100 or directly from the top to the bottom to the discharge port of the material barrel 100.

[0045] like Figure 1 and Figure 2 As shown, in some specific embodiments of the present invention, a flow box 400 is also included. The flow box 400 has a hollow cavity structure. The flow box 400 is horizontally arranged at the outer bottom of the material barrel 100, and the cavity of the flow box 400 is connected to the discharge port of the material barrel 100 and the stirring device 200. The mixed material in the material barrel 100 enters the stirring device 200 through the flow box 400 for stirring. It should be noted that, on the one hand, the setting of the flow box 400 can conveniently improve the layout of the stirring device 200, avoid the small space at the bottom of the material barrel 100 hindering the installation of the stirring device 200, and at the same time, reserve enough space to facilitate the maintenance of the stirring device 200; on the other hand, the setting of the flow box 400 can also reserve pre-mixing space to avoid the defects of directly using the pipeline. When the pipeline is used directly, the diameter of the pipeline is too small, which will cause part of the solid raw materials to directly block the pipeline and affect the use. In the present application, the flow box 400 can be supported by the bracket 500 to reduce the force of the flow box 400 on the material barrel 100 and improve the stability of the connection between the flow box 400 and other components.

[0046] like Figure 1 , Figure 2 and Figure 4As shown, in some specific embodiments of the present invention, the stirring device 200 includes a first shell 210, a second shell 220, a third shell 230, a fourth shell 240 and a stirring motor 250. The first shell 210, the second shell 220, the third shell 230 and the fourth shell 240 are arranged vertically from bottom to top and are connected in sequence by bolts, the stirring motor 250 is installed at the upper end of the fourth shell 240, and the motor shaft of the stirring motor 250 is arranged vertically. The first shell 210, the second shell 220, the third shell 230 and the fourth shell 240 all have a hollow cavity structure and the cavities of the first shell 210 and the second shell 220 are connected, and a stirring mechanism 211 is arranged in the cavity of the first shell 210. The cavity of the second shell 220 is connected to the cavity of the flow box 400, so that the mixed material in the material barrel 100 flows out from the discharge port of the material barrel 100 and enters the cavity of the second shell 220 through the flow box 400, and then enters the cavity of the first shell 210 from the cavity of the second shell 220 and is stirred by the stirring mechanism 211.

[0047] Further, the stirring mechanism 211 includes a stirring shaft 2112 and a plurality of stirring blades 2111. The stirring shaft 2112 is arranged vertically, and a plurality of stirring blades 2111 are vertically evenly distributed at the lower end of the stirring shaft 2112 and fixedly connected to the lower end side wall of the stirring shaft 2112; the upper end of the stirring shaft 2112 passes through the cavities of the first shell 210, the second shell 220, the third shell 230 and the fourth shell 240 in sequence and is connected to the motor shaft of the stirring motor 250, and the stirring motor 250 drives the stirring shaft 2112 to drive the stirring blades 2111 to rotate to stir the mixed material entering the first shell 210. It should be noted that the number of stirring blades 2111 can be adjusted according to actual needs on the premise of fully stirring the mixed material, and is not specifically limited in this application. During the stirring process, the continuously flowing mixed material can be used to cool the stirring shaft 2112 to achieve self-cooling.

[0048] Specifically, the stirring mechanism 211 also includes a support plate 2113 and a connecting cylinder 2114. The support plate 2113 is horizontally arranged at the bottom end of the stirring shaft 2112. The support plate 2113 is disc-shaped as a whole, and there is a gap between its edge and the cavity of the first shell 210, so that the mixed material after stirring can be fully discharged; the support plate 2113 is fixedly connected to the bottom end of the stirring shaft 2112 by screws. The connecting cylinder 2114 is vertically arranged at the upper end of the support plate 2113, and the connecting cylinder 2114 has a hollow cavity structure. A plurality of stirring blades 2111 are vertically evenly distributed on the circumferential outer side wall of the connecting cylinder 2114 and abut against the upper end of the support plate 2113. The connecting cylinder 2114 is inserted into the stirring shaft 2112 and is interference-connected with the stirring shaft 2112 to prevent the mixed material from entering the gap between the two.

[0049] Furthermore, a plurality of notches 231 are circumferentially formed on the lower side wall of the third housing 230, and the notches 231 are used for heat dissipation. The notches 231 are arranged according to actual needs and are not specifically limited in this application.

[0050] like Figure 1 and Figure 2 As shown, in some specific embodiments of the present invention, the conveying device 300 includes a first pipe 310, a second pipe 320 and a third pipe 330. One end of the first pipe 310 extends into the cavity of the first shell 210 so that the cavity of the first pipe 310 is connected to the cavity of the first shell 210; one end of the third pipe 330 extends into the upper cavity of the material barrel 100 so that the cavity of the third pipe 330 is connected to the cavity of the material barrel 100; the two ends of the second pipe 320 are connected to the first pipe 310 and the third pipe 330 respectively. The mixed material stirred by the stirring mechanism 211 is sent to the material barrel 100 through the first pipe 310, the second pipe 320 and the third pipe 330 for re-stirring so that the mixed material in the material barrel 100 is stirred more fully.

[0051] Furthermore, one-way valves 340 are provided on the first pipeline 310, the second pipeline 320 and the third pipeline 330 to control the connection or disconnection between the first pipeline 310, the second pipeline 320 and the third pipeline 330. The connection port of the first pipeline 310 and the second pipeline 320 is located between the stirring device 200 and the one-way valve 340 on the first pipeline 310; the connection port of the second pipeline 320 and the third pipeline 330 is located between the two one-way valves 340 on the third pipeline 330.

[0052] When the stirring device 200 is working, that is, when the stirring mechanism 211 is working, in order to fully stir the mixed material, the conveying device 300 can be configured as follows: the one-way valve 340 on the first pipeline 310 is closed to prevent the mixed material from being discharged to the outside; and the one-way valve 340 on the second pipeline 320 is opened; and the one-way valve 340 on the left side (i.e., the side close to the material barrel 100) of the third pipeline 330 is opened, and the one-way valve 340 on the right side (i.e., the side away from the material barrel 100) of the third pipeline 330 is closed. The second pipeline 320 is connected to the third pipeline 330. According to this configuration, a closed pipeline is formed, so that the mixed material can be stirred by the stirring mechanism 211 repeatedly, so that the material can be stirred evenly and fully.

[0053] like Figure 5As shown, in some specific embodiments of the present invention, a reflux port 331 is provided on the side wall of one end of the third pipe 330 extending into the material barrel 100 toward the center of the material barrel 100. The reflux port 331 is in an elongated strip shape, which can increase the cross-sectional area of ​​the outlet, so that the refluxed mixed material flows out in a wide and flat shape, and also allows the mixed material itself to flow, thereby spontaneously promoting mixing.

[0054] like Figure 3 and Figure 5 As shown, in some specific embodiments of the present invention, a plurality of separation sheets 120 are evenly distributed circumferentially on the side wall of the upper cavity of the material barrel 100, and the reflux port 331 is located at the bottom of the separation sheet 120, so that the separation sheet 120 can block the refluxed mixed material and prevent the mixed material from splashing to the outside of the material barrel 100.

[0055] Furthermore, the length of the reflux port 331 can be made greater than the width of the separation sheet 120 , so as to increase the outflow width of the mixed material as much as possible while avoiding the mixed material from splashing outward, thereby greatly promoting the flow of the mixed material.

[0056] Furthermore, the side of the separation sheet 120 close to the center of the material barrel 100 can be set as an inclined surface, which can extend the contact length between the separation sheet 120 and the reflowing mixed material, thereby promoting the separation sheet 120 to cut the reflowing mixed material and improve the stirring effect.

[0057] When the pulping mixer in the above technical solution is used, during the process of externally supplying materials to the material barrel 100, the stirring device 200 can be started to perform stirring work at the same time to improve work efficiency.

[0058] The pulping system according to the second embodiment of the present invention includes the pulping mixer described above, and adopts the pulping mixer in the above technical solution. Therefore, it has all the beneficial effects of the pulping mixer described in the above embodiment, which are not listed one by one here.

[0059] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0060] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A mixer for pulping, characterized in that: It comprises a material barrel (100), a stirring device (200) and a conveying device (300); The material barrel (100) is used to contain the mixed material, and the material barrel (100) has a discharge port; The stirring device (200) is arranged on one side of the material barrel (100) and is connected to the discharge port, and is used to stir the mixed material conveyed by the material barrel (100); and The conveying device (300) is used to convey the stirred mixed material into the material barrel (100); the conveying device (300) comprises a first pipeline (310), a second pipeline (320) and a third pipeline (330); the first pipeline (310) is connected to the stirring device (200), and the third pipeline (330) is connected to the material barrel (100); the first pipeline (310), the second pipeline (320) and the third pipeline (330) are all provided with a one-way valve (340); the communication port of the first pipeline (310) and the second pipeline (320) is located between the one-way valve (340) on the stirring device (200) and the first pipeline (310); the communication port of the second pipeline (320) and the third pipeline (330) is located between the two one-way valves (340) on the third pipeline (330); When the stirring device (200) is working, the one-way valve (340) on the first pipeline (310) is closed, the one-way valve (340) on the second pipeline (320) is opened, the one-way valve (340) on the side of the third pipeline (330) close to the material barrel (100) is opened, and the one-way valve (340) on the side of the third pipeline (330) away from the material barrel (100) is closed.

2. A pulping mixer according to claim 1, characterized in that: A filter screen (110) is provided at the upper opening of the material barrel (100).

3. A pulping mixer according to claim 1, characterized in that: The stirring device (200) comprises a first shell (210) and a second shell (220) which are arranged vertically, wherein the first shell (210) is located at the lower end of the second shell (220), the first shell (210) and the second shell (220) both have a hollow cavity structure, and the cavities of the first shell (210) and the second shell (220) are connected, and a stirring mechanism (211) for stirring the mixed material is arranged in the cavity of the first shell (210); the cavity of the second shell (220) is connected to the discharge port, so that the mixed material in the material barrel (100) enters the first shell (210) through the discharge port and the second shell (220) for stirring.

4. A mixer for pulping according to claim 3, characterized in that: The stirring device (200) further comprises a third shell (230), a fourth shell (240) and a stirring motor (250), wherein the third shell (230) and the fourth shell (240) are arranged vertically on the upper end of the second shell (220) in sequence, and the stirring motor (250) is installed on the upper end of the fourth shell (240); the stirring mechanism (211) comprises a stirring shaft (2112) and a plurality of stirring blades (2111), wherein the stirring shaft (2112) is arranged vertically, and the plurality of stirring blades (2111) are vertically evenly distributed on the lower end of the stirring shaft (2112) and fixedly connected to the lower end side wall of the stirring shaft (2112); the upper end of the stirring shaft (2112) passes through the cavities of the first shell (210), the second shell (220), the third shell (230) and the fourth shell (240) in sequence, and then is connected to the motor shaft of the stirring motor (250).

5. A mixer for pulping according to claim 4, characterized in that: The lower side wall of the third housing (230) is circumferentially provided with a plurality of notch grooves (231) for heat dissipation.

6. A mixer for pulping according to claim 4, characterized in that: The stirring mechanism (211) further comprises a support plate (2113) and a connecting tube (2114); the support plate (2113) is horizontally arranged at the bottom end of the stirring shaft (2112); the support plate (2113) is disc-shaped as a whole, and a gap is provided between the edge of the support plate and the cavity of the first shell (210); the connecting tube (2114) is vertically arranged at the upper end of the support plate (2113); the connecting tube (2114) has a hollow cavity structure; a plurality of stirring blades (2111) are vertically evenly distributed on the circumferential outer side wall of the connecting tube (2114) and abut against the upper end of the support plate (2113); the connecting tube (2114) is inserted into the stirring shaft (2112) and is interference-connected with the stirring shaft (2112).

7. A mixer for pulping according to claim 3, characterized in that: One end of the first pipe (310) extends into the cavity of the first shell (210) so that the cavity of the first pipe (310) is connected to the cavity of the first shell (210); one end of the third pipe (330) extends into the upper cavity of the material barrel (100) so that the cavity of the third pipe (330) is connected to the cavity of the material barrel (100).

8. A mixer for pulping according to claim 7, characterized in that: A strip-shaped reflux port (331) is provided on the side wall of one end of the third pipe (330) extending into the material barrel (100) toward the center of the material barrel (100).

9. A mixer for pulping according to claim 3, characterized in that: It also includes a flow box (400), which has a hollow cavity structure. The flow box (400) is horizontally arranged at the outer bottom end of the material barrel (100), and the cavity of the flow box (400) is connected to the discharge port of the material barrel (100) and the cavity of the second shell (220).

10. A pulping system, characterized in that: The invention comprises the pulping mixer according to any one of claims 1 to 9.

Images