A high-efficiency crushing and cooking device for recycled paper production

Abstract

The invention relates to the technical field of papermaking equipment, and in particular to a high-efficiency crushing and boiling device for recycled paper production, comprising an outer shell, a feeding assembly fixedly connected to the outer side of the outer shell, an outer barrel arranged inside the outer shell, an inner barrel sealed and fixedly connected to the inner side of the outer barrel, the outer barrel and the inner barrel correspondingly communicate with the feeding assembly, the feeding assembly can input boiling liquid into the outer barrel, and put paper scraps into the inner barrel, a crushing and boiling assembly is arranged between the inner barrel and the outer barrel, and a stirring assembly drivingly connected to the crushing and boiling assembly is arranged inside the inner barrel; the overall structure of the invention is simple and ingenious, an annularly evenly distributed electric heating tube is used to heat the inner barrel, and a high-pressure jet method is used to accelerate the stirring of paper scraps while breaking them, and the process of crushing and boiling paper scraps is cleverly combined, which not only shortens the time occupied by the crushing and boiling process, but also improves the efficiency and effect of crushing and boiling.

Description

Technical Field

[0001] The invention relates to the technical field of papermaking equipment, and in particular to a high-efficiency pulverizing and boiling device for producing recycled paper. Background Art

[0002] Recycled paper is a product made from recycled waste paper that has been sorted, sorted, soaked, steamed, and re-pulped. The recycling and reuse of waste paper has an immeasurable effect on the ecological environment. The recycling and reuse of waste paper is of great significance to my country's energy conservation and emission reduction, environmental protection, and circular economy.

[0003] A Chinese patent with application number: 201920772479.9 discloses a pulverizing and cooking device for recycled paper production, including a tank body, a heating base and a motor, wherein a motor is installed in the middle position of the top of the tank body, a rotating rod is installed at the output end of the motor, and stirring rods are installed at the bottom ends of both sides of the rotating rod, an electric push rod is installed at one end of the top of the tank body, a pressing net is installed at the output end of the electric push rod, a hollow net is installed inside the pressing net, and a hollow column hole is provided at the center position inside the pressing net, and a discharge port is provided at the top of one side of the outer side of the tank body.

[0004] The device is provided with a temperature return pipe at one end of the top of the tank body away from the electric push rod, and a micro exhaust fan is installed at the other end of the temperature return pipe away from the tank body, and a controller is installed at the bottom end of one side of the tank body, so that the device can recover and circulate the hot air inside the tank body, and preheat the inside of the device during the circulation, thereby enhancing the cooking efficiency of the device; however, during the operation of the device, the crushing tank and the tank body are used to separate the crushing and cooking processes from each other, making it difficult to combine the crushing and cooking processes, resulting in the crushing and cooking processes each taking up separate time, which is not conducive to improving the crushing and cooking efficiency, and the heating method using the heating base at the bottom end of the tank body for heating can easily lead to uneven heating inside the tank body, thereby affecting the crushing and cooking effects.

[0005] Therefore, how to improve the efficiency and effect of pulverizing and cooking in the recycled paper production process is a problem that technicians in this field need to solve. Summary of the invention

[0006] In order to improve the efficiency and effect of pulverizing and boiling in the process of recycled paper production, the present invention provides a high-efficiency pulverizing and boiling device for recycled paper production.

[0007] The technical solution of the present invention is:

[0008] The invention provides a high-efficiency crushing and cooking device for recycled paper production, comprising a frame, a flat plate fixedly connected to the upper end of the frame, a shell fixedly connected to the upper surface of the flat plate, a feeding assembly fixedly connected to the outer side of the shell, an outer barrel fixedly connected to the upper surface of the flat plate is provided inside the shell, an inner barrel is sealably fixedly connected to the inner side of the outer barrel, the outer barrel and the inner barrel are correspondingly connected to the feeding assembly, the feeding assembly can input cooking liquid into the outer barrel and put paper scraps into the inner barrel, a crushing and cooking assembly is provided between the inner barrel and the outer barrel, a stirring assembly transmission-connected to the crushing and cooking assembly is provided inside the inner barrel, the crushing and cooking assembly can crush the paper scraps during the cooking process, and the stirring assembly can stir the paper scraps during the cooking process, thereby ensuring the efficiency and effect of the crushing and cooking.

[0009] Furthermore, the feed assembly includes a feed hopper and a feed pipe. The feed hopper is fixedly connected to the outside of the outer shell. The lower end of the feed hopper is provided with a feed box that is sealed and connected to the inner barrel. The outer side surface of the feed box passes through the outer shell and the side wall of the outer barrel and is sealed and fixedly connected to the side wall of the outer barrel. The outer end of the feed pipe is sealed and fixedly connected to a one-way valve, the outer end of the one-way valve is connected to a container containing cooking liquid, and the inner end of the feed pipe passes through the outer shell and is fixedly and sealedly connected to the outer barrel.

[0010] Furthermore, the crushing and cooking assembly includes an electric heating tube, which is evenly distributed in a ring shape between the outer side surface of the inner barrel and the inner side surface of the outer barrel. The outer side surface of the inner barrel is provided with an annular groove, and four symmetrical mounting holes are provided at a lower position inside the annular groove. A mounting tube is provided inside the mounting hole and is sealed and fixedly connected to the mounting tube. A pressure retaining ring is provided inside the annular groove and is sealed and slidably connected to the mounting tube. An electric telescopic rod with an end fixedly connected to the pressure retaining ring is provided on the outer side of the pressure retaining ring, and the other end of the electric telescopic rod is fixedly connected to the upper end of the outer barrel.

[0011] Furthermore, the stirring assembly includes a limiting sleeve, the top of the inner barrel is provided with an inner barrel cover which is sealed and fixedly connected thereto, the limiting sleeve is fixedly connected to the middle of the inner barrel cover, the inner side of the limiting sleeve is provided with a vertical shaft which is rotatably connected thereto, the lower end of the vertical shaft is fixedly connected with a stirring plate near the inner bottom surface of the inner barrel, the outer side of the stirring plate is provided with stirring blades which are evenly and obliquely distributed, the upper end of the vertical shaft is provided with a shaft sleeve which is axially slidably connected thereto, and the outer side of the shaft sleeve is provided with a stirring motor which is transmission-connected thereto.

[0012] Furthermore, the outer side surface of the vertical shaft is fixedly connected to the limit pin, and the interior of the limit sleeve is provided with two upper and lower parallel annular grooves corresponding to the limit pin, and a spiral groove connected to each other is provided between the two annular grooves, and both the annular groove and the spiral groove are slidably connected to the limit pin.

[0013] Furthermore, a spring fixedly connected to the limiting sleeve is disposed at the upper end thereof, and a limiting ring fixedly connected to the outer side surface of the vertical shaft is disposed at the upper end of the spring.

[0014] Furthermore, the inner end of the mounting tube is located inside the inner barrel, and the inner end of the mounting tube is closed, and the outer side surfaces of the four symmetrical mounting tubes are provided with a rotating sleeve rotatably connected thereto near their inner ends, and the outer side of the rotating sleeve is provided with a plurality of stirring tubes evenly distributed in an annular shape and fixedly connected thereto, and a spray hole is provided at the end of the stirring tube.

[0015] Furthermore, the inner end of the rotating sleeve is provided with a first bevel gear transmission-connected to the stirring assembly, and the outer side of the mounting tube is provided with a semicircular through groove facing the lower side of the bottom of the inner barrel, and the semicircular through groove is sealed and connected with the corresponding stirring tube.

[0016] Furthermore, a second bevel gear fixedly connected to the vertical shaft is provided on the outer side of the vertical shaft, and the second bevel gear can mesh with the first bevel gear.

[0017] Furthermore, a discharge cover sealedly connected to the bottom of the inner barrel is provided, an auger is provided inside the feed box, and a feed motor drivingly connected to the outer end of the auger is provided.

[0018] The beneficial effects achieved by the present invention are:

[0019] During the working process of the present invention, paper scraps for recycled paper production can be quantitatively fed through the feeding motor and the auger, and then the cooking liquid contained in the external container is fed into the interior of the outer barrel through the one-way valve and the feeding pipe. After the electric heating tube is energized, the cooking liquid and the inner barrel are heated. After the electric telescopic rod is extended, it will drive the pressure retaining ring to slide downward inside the ring groove. At this time, the inner side surface of the pressure retaining ring will block the mounting tube. When the water vapor generated after the cooking liquid is heated and boiled forms high-pressure hot air, the electric telescopic rod is controlled to contract. When the electric telescopic rod contracts, it will drive the pressure retaining ring to slide upward inside the ring groove. At this time, the inner side surface of the pressure retaining ring will no longer block the mounting tube. The cooking liquid and water vapor inside the outer barrel will pass through the mounting tube under high pressure, and will be sprayed from the spray hole at the end of the stirring tube to the interior of the inner barrel in a rotating manner as the rotating sleeve and the stirring tube rotate. The high-pressure cooking liquid sprayed on the cooked paper scraps will break the paper scraps while stirring the paper scraps.

[0020] The overall structure of the present invention is simple and ingenious. The inner barrel is heated by an annularly evenly distributed electric heating tube, which can not only increase the heating area of ​​the inner barrel, but also ensure that the inside of the inner barrel is evenly heated, thereby ensuring the effect of crushing and cooking. In addition, the high-pressure spray method can accelerate the stirring of paper scraps while breaking them up. The process of crushing and cooking the paper scraps is cleverly combined, which not only shortens the time occupied by the crushing and cooking process, but also helps to improve the efficiency of crushing and cooking. In addition, the combined stirring of the stirring tube and the stirring plate during the cooking process further improves the effect of crushing and cooking. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1It is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 It is a schematic diagram of the structural decomposition of the present invention;

[0023] Figure 3 yes Figure 1 AA-direction cross-sectional structural diagram;

[0024] Figure 4 yes Figure 1 Schematic diagram of the cross-sectional structure in the middle BB direction;

[0025] Figure 5 It is a schematic diagram of the internal structure of the present invention;

[0026] Figure 6 yes Figure 3 The enlarged schematic diagram of the structure of Part I;

[0027] Figure 7 yes Figure 4 The enlarged schematic diagram of the structure of Part II;

[0028] Figure 8 yes Figure 4 Schematic diagram of the enlarged structure of Part III. DETAILED DESCRIPTION

[0029] To facilitate those skilled in the art to understand the present invention, specific implementations of the present invention are described below with reference to the accompanying drawings.

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0032] It should be noted that when a component is referred to as being "mounted on" another component, it may be directly on the other component or there may be a central component. When a component is considered to be "set on" another component, it may be directly set on the other component or there may be a central component at the same time. When a component is considered to be "fixed to" another component, it may be directly fixed on the other component or there may be a central component at the same time.

[0033] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which the present invention belongs. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "or / and" used herein includes any and all combinations of one or more of the related listed items.

[0034] like Figure 1 , 2 As shown, the present invention provides a high-efficiency crushing and cooking device for recycled paper production, including a frame 1, a flat plate 2 fixedly connected to the upper end of the frame 1, a shell 3 fixedly connected to the upper surface of the flat plate 2, a mounting plate 4 fixedly connected to the upper surface of the shell 3, a top cover 5 fixedly connected to the upper surface of the mounting plate 4, a feed hopper 6 fixedly connected to the outer side of the shell 3, an outer barrel 7 fixedly connected to the upper surface of the flat plate 2 is provided inside the shell 3, an inner barrel 8 sealed and fixedly connected to the outer barrel 7 is provided inside the outer barrel 7, and a seal is provided at the lower end of the feed hopper 6. A feed box 9, the outer side of the feed box 9 passes through the side walls of the outer shell 3 and the outer barrel 7 and is sealed and fixedly connected to the side walls of the outer barrel 7, and a ring-shaped uniformly distributed electric heating tube 10 is provided between the outer side of the inner barrel 8 and the inner side of the outer barrel 7; during operation, the inner barrel 8 can be heated by energizing the electric heating tube 10, and paper scraps used for recycled paper production can be put into the feed hopper 6 through the feed box 9 and enter the inner barrel 8 for heating and cooking. The design uses a ring-shaped uniformly distributed electric heating tube 10 to heat the inner barrel 8, which can not only increase the heating area of ​​the inner barrel 8, but also ensure that the inner barrel 8 is evenly heated, thereby ensuring the effect of crushing and cooking.

[0035] like Figures 1 to 3As shown, a feed pipe 11 fixedly connected to the outer side of the shell 3 is provided, and a one-way valve 12 sealed and fixedly connected to the outer side of the feed pipe 11 is provided, and the outer end of the one-way valve 12 is connected to the container containing the cooking liquid, and the inner end of the feed pipe 11 passes through the shell 3 and is fixedly and sealedly connected to the outer barrel 7, and an annular groove 13 is provided on the outer side of the inner barrel 8, and four mutually symmetrical mounting holes 14 are provided at the lower position inside the annular groove 13, and a mounting pipe 15 sealed and fixedly connected to the mounting hole 14 is provided inside the mounting hole 14, and a pressure retaining ring 16 sealed and slidably connected to the mounting hole is provided inside the annular groove 13, and an electric telescopic rod 17 with an end fixedly connected to the pressure retaining ring 16 is provided on the outer side of the pressure retaining ring 16, and the other end of the electric telescopic rod 17 is fixedly connected to the upper end of the outer barrel 7; during operation, the cooking liquid contained in the external container can enter the outer barrel 7 through the one-way valve 12 and the feed pipe 11. Inside the outer barrel 7, the electric heating tube 10 will directly heat the cooking liquid after being energized. After the electric telescopic rod 17 is extended, it will drive the pressure-keeping ring 16 to slide downward inside the annular groove 13. At this time, the inner side of the pressure-keeping ring 16 will block the mounting tube 15. When the water vapor generated after the cooking liquid is heated and boiled forms high-pressure hot air, the electric telescopic rod 17 is controlled to contract. When the electric telescopic rod 17 contracts, it will drive the pressure-keeping ring 16 to slide upward inside the annular groove 13. At this time, the inner side of the pressure-keeping ring 16 will no longer block the mounting tube 15. The cooking liquid and water vapor inside the outer barrel 7 will be sprayed into the inner barrel through the mounting tube 15 under high pressure. The high-pressure cooking liquid sprayed on the cooked paper scraps will further break the paper scraps. This design uses the high-pressure water column generated by the high-pressure gas to impact the paper scraps, which is conducive to quickly crushing and pulping the paper scraps.

[0036] like Figure 2 , 4As shown in Figure 6, the top of the inner barrel 8 is provided with an inner barrel cover 18 which is sealed and fixedly connected thereto, the middle of the inner barrel cover 18 is provided with a limit sleeve 19 which is fixedly connected thereto, the inner side of the limit sleeve 19 is provided with a vertical shaft 20 which is rotatably connected thereto, the lower end of the vertical shaft 20 is fixedly connected with a stirring disk 21 near the inner bottom surface of the inner barrel, the outer side of the stirring disk 21 is provided with stirring blades 22 which are evenly and obliquely densely distributed, the upper end of the vertical shaft 20 is provided with a shaft sleeve 23 which is axially slidably connected thereto, the outer side of the shaft sleeve 23 is provided with a stirring motor 24 which is transmission-connected thereto; a limit pin 25 which is fixedly connected thereto is provided on the outer side of the vertical shaft 20, two annular slide grooves 26 which are parallel to each other are provided in the inner side of the limit sleeve 19 corresponding to the limit pin 25, a spiral groove 27 which is connected to each other is provided between the two annular slide grooves 26, the annular slide grooves 26 and the spiral grooves 27 are both slidably connected to the limit pin 25, and the upper side of the limit sleeve 19 is provided with a limit pin 25 which is fixedly connected thereto. The end is provided with a spring 28 fixedly connected thereto, and the upper end of the spring 28 is provided with a limit ring 29 fixedly connected to the outer side surface of the vertical shaft 20; during operation, the vertical shaft 20 can be driven to rotate forward and reverse by controlling the stirring motor 24, and the vertical shaft 20 will drive the stirring plate 21, the stirring blade 22 and the limit pin 25 to rotate. When the vertical shaft 20 rotates forward, the stirring blade 22 will drive the material at the bottom of the inner barrel 8 to stir upward, and at the same time, the limit pin 25 will slide from the lower annular groove 26 to the upper annular groove 26 through the spiral groove 27, so the vertical shaft will also move axially upward accordingly. Conversely, when the vertical shaft 20 rotates reversely, the stirring blade 22 will drive the material at the bottom of the inner barrel 8 to stir downward, and at the same time, the limit pin 25 will slide from the upper annular groove 26 to the lower annular groove 26 through the spiral groove 27, so the vertical shaft will also move axially downward accordingly.

[0037] like Figure 4 , 5As shown in Figures 7 and 8, the inner end of the mounting tube 15 is located inside the inner barrel 8, and the inner end of the mounting tube 15 is closed. The outer sides of the four symmetrical mounting tubes 15 are provided with a rotating sleeve 30 rotatably connected thereto near their inner ends. The outer side of the rotating sleeve 30 is provided with a plurality of stirring tubes 31 evenly distributed in an annular shape and fixedly connected thereto. The inner end of the rotating sleeve 30 is provided with a first bevel gear 32 fixedly connected thereto corresponding to the vertical shaft 20. The outer side of the vertical shaft 20 is provided with a second bevel gear 33 fixedly connected thereto. The second bevel gear 33 can mesh with the first bevel gear 32. The outer side of the mounting tube 15 is provided with a semicircular through groove 34 on the lower side facing the bottom of the inner barrel 8. The semicircular through groove 34 is sealedly connected to the corresponding stirring tube 31. A spray hole 35 is provided at the end of the stirring tube 31; during operation, when the vertical axis moves downward, the second bevel gear 33 on the outer side of the vertical axis 20 will mesh with the first bevel gear 32, and then the second bevel gear 33 and the first bevel gear 32 will drive the rotating sleeve 30 and the stirring tube 31 to rotate. At this time, the stirring tube 31 will stir the paper scraps and the cooking liquid during the cooking process, and when the cooking liquid and water vapor inside the outer barrel 7 are sprayed into the inner barrel through the mounting tube 15 under high pressure, the stirring tube 31 will stir the paper scraps and the cooking liquid during the cooking process while spraying them out from the spray hole 35 at its end in a rotating manner, further accelerating the efficiency and effect of crushing, cooking and pulping the paper scraps.

[0038] like Figure 4 , 5 As shown in Figure 8, the bottom of the inner barrel 8 is provided with a discharge cover 36 which is sealed and connected thereto, an auger 37 is provided inside the feed box 9, and a feed motor 38 which is transmission-connected thereto is provided at the outer end of the auger 37. During operation, the feed motor 38 will drive the auger 37 to rotate after it is started, and the auger 37 will transport the paper scraps inside the feed hopper 6 to the inner barrel after it rotates. When the paper scraps inside the inner barrel are crushed, boiled and pulped, the discharge cover 36 can be opened to discharge the material. This design can quantitatively input paper scraps for recycled paper production through the feed motor 38 and the auger 37, thereby achieving the control of the mixing ratio of the cooking liquid and the paper scraps, and further ensuring the crushing and boiling effect.

[0039] In summary, the overall structure of the present invention is simple and ingenious. The paper scraps for recycled paper production can be quantitatively fed through the feeding motor 38 and the auger 37, and the cooking liquid contained in the external container is fed into the outer barrel 7 through the one-way valve 12 and the feeding pipe 11. After the electric heating tube 10 is energized, the cooking liquid and the inner barrel 8 are heated. After the electric telescopic rod 17 is extended, it will drive the pressure-keeping ring 16 to slide downward inside the annular groove 13. At this time, the inner side of the pressure-keeping ring 16 will block the mounting tube 15. When the water vapor generated after the cooking liquid is heated and boiled forms high-pressure hot air, the electric telescopic rod 17 is controlled to contract. When the electric telescopic rod 17 contracts, it will drive the pressure-keeping ring 16 to slide upward inside the annular groove 13. At this time, the inner side of the pressure-keeping ring 16 will no longer block the mounting tube 15, and the cooking liquid and water vapor inside the outer barrel 7 will pass through the mounting tube 15 under high pressure. Tube 15, along with the rotation of the rotating sleeve 30 and the stirring tube 31, is sprayed from the spray hole 35 at the end of the stirring tube 31 into the inner barrel in a rotating manner, and the high-pressure cooking liquid is sprayed on the cooked paper scraps to break the paper scraps while stirring the paper scraps; the present invention adopts an annularly evenly distributed electric heating tube 10 to heat the inner barrel 8, which can not only increase the heating area of ​​the inner barrel 8, but also ensure that the inner barrel 8 is evenly heated, thereby ensuring the crushing and cooking effect, and the high-pressure spraying method can accelerate the stirring of the paper scraps while breaking the paper scraps, cleverly combining the processes of crushing and cooking the paper scraps, not only shortening the time occupied by the crushing and cooking process, but also helping to improve the efficiency of crushing and cooking, and in the cooking process, the combined stirring of the stirring tube 31 and the stirring sheet further improves the crushing and cooking effect.

[0040] The above-described embodiments of the present invention do not constitute a limitation on the protection scope of the present invention. Any modification, equivalent substitution and improvement made within the spirit and principle of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. A highly efficient crushing and cooking device for recycled paper production, characterized in that: The machine comprises a frame (1), the upper end of the frame (1) is fixedly connected to a plate (2), the upper surface of the plate (2) is fixedly connected to an outer shell (3), the outer side of the outer shell (3) is fixedly connected to a feeding assembly, the outer shell (3) is provided with an outer barrel (7) fixedly connected to the upper surface of the plate (2), the inner part of the outer barrel (7) is sealed and fixedly connected to an inner barrel (8), the outer barrel (7) and the inner barrel (8) are connected to the feeding assembly respectively, the feeding assembly can input cooking liquid into the outer barrel (7) and input paper scraps into the inner barrel (8), a crushing and cooking assembly is provided between the inner barrel (8) and the outer barrel (7), a stirring assembly is provided inside the inner barrel (8) and is transmission-connected to the crushing and cooking assembly, the crushing and cooking assembly can crush paper scraps during the cooking process, and the stirring assembly can stir the paper scraps during the cooking process, thereby ensuring the efficiency and effect of crushing and cooking; The pulverizing and cooking assembly comprises an electric heating tube (10), which is evenly distributed in an annular shape between the outer side surface of the inner barrel (8) and the inner side surface of the outer barrel (7); an annular groove (13) is provided on the outer side surface of the inner barrel (8); four mutually symmetrical mounting holes (14) are provided at a lower position inside the annular groove (13); mounting tubes (15) are provided inside the mounting holes (14) and are sealed and fixedly connected thereto; a pressure retaining ring (16) is provided inside the annular groove (13) and is sealed and slidably connected thereto; an electric telescopic rod (17) is provided on the outer side of the pressure retaining ring (16) and an end thereof is fixedly connected thereto; the other end of the electric telescopic rod (17) is fixedly connected to the upper end of the outer barrel (7).

2. The high-efficiency crushing and cooking device for recycled paper production according to claim 1, characterized in that: The feed assembly comprises a feed hopper (6) and a feed pipe (11); the feed hopper (6) is fixedly connected to the outside of the outer shell (3); a feed box (9) is provided at the lower end of the feed hopper (6) and is in sealed communication with the inner barrel (8); the outer side surface of the feed box (9) passes through the side walls of the outer shell (3) and the outer barrel (7) and is sealed and fixedly connected to the side wall of the outer barrel (7); the outer end of the feed pipe (11) is sealed and fixedly connected to a one-way valve (12); the outer end of the one-way valve (12) is connected to a container containing cooking liquid; the inner end of the feed pipe (11) passes through the outer shell (3) and is in fixed and sealed communication with the outer barrel (7).

3. The high-efficiency crushing and cooking device for recycled paper production according to claim 1, characterized in that: The stirring assembly comprises a limiting sleeve (19), the top of the inner barrel (8) is provided with an inner barrel cover (18) which is sealed and fixedly connected thereto, the limiting sleeve (19) is fixedly connected to the middle of the inner barrel cover (18), the inner side of the limiting sleeve (19) is provided with a vertical shaft (20) which is rotatably connected thereto, the lower end of the vertical shaft (20) is fixedly connected to a stirring plate (21) near the inner bottom surface of the inner barrel, the outer side of the stirring plate (21) is provided with stirring blades (22) which are uniformly and obliquely distributed, the upper end of the vertical shaft (20) is provided with a shaft sleeve (23) which is axially slidably connected thereto, and the outer side of the shaft sleeve (23) is provided with a stirring motor (24) which is transmission-connected thereto.

4. The high-efficiency crushing and boiling device for recycled paper production according to claim 3 is characterized in that: The outer side surface of the vertical shaft (20) is fixedly connected to a limit pin (25), and the interior of the limit sleeve (19) is provided with two upper and lower parallel annular sliding grooves (26) corresponding to the limit pin (25), and a spiral groove (27) connected to each other is provided between the two annular sliding grooves (26), and both the annular sliding groove (26) and the spiral groove (27) are slidably connected to the limit pin (25).

5. The high-efficiency crushing and boiling device for recycled paper production according to claim 4, characterized in that: The upper end of the limiting sleeve (19) is provided with a spring (28) fixedly connected thereto, and the upper end of the spring (28) is provided with a limiting ring (29) fixedly connected to the outer side surface of the vertical shaft (20).

6. The high-efficiency crushing and cooking device for recycled paper production according to claim 1, characterized in that: The inner end of the mounting tube (15) is located inside the inner barrel (8), and the inner end of the mounting tube (15) is closed. The outer side surfaces of the four symmetrical mounting tubes (15) are provided with a rotating sleeve (30) rotatably connected thereto near the inner end thereof. The outer side of the rotating sleeve (30) is provided with a plurality of stirring tubes (31) evenly distributed in an annular shape and fixedly connected thereto, and the end of the stirring tube (31) is provided with a spray hole (35).

7. The high-efficiency crushing and boiling device for recycled paper production according to claim 6, characterized in that: The inner end of the rotating sleeve (30) is provided with a first bevel gear (32) which is transmission-connected to the stirring assembly. The outer side of the mounting tube (15) is provided with a semicircular through groove (34) on the lower side facing the bottom surface of the inner barrel (8). The semicircular through groove (34) is sealed and connected to the corresponding stirring tube (31).

8. The high-efficiency crushing and boiling device for recycled paper production according to claim 7, characterized in that: A second bevel gear (33) fixedly connected to the vertical shaft (20) is provided on the outer side of the vertical shaft (20), and the second bevel gear (33) can mesh with the first bevel gear (32).

9. A high-efficiency crushing and cooking device for recycled paper production according to any one of claims 1 to 8, characterized in that: The bottom of the inner barrel (8) is provided with a discharge cover (36) which is sealed therewith, the interior of the feed box (9) is provided with an auger (37), and the outer end of the auger (37) is provided with a feed motor (38) which is transmission-connected therewith.

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