Wood fiber deep treatment equipment for papermaking

Abstract

The utility model relates to wood fiber deep treatment equipment for papermaking, which comprises a fiber separator and a high-temperature and high-concentration beater, a long fiber output port of the fiber separator is in butt joint with an input port of the high-temperature and high-concentration beater, and a heating pipe is wound in the wall of the high-temperature and high-concentration beater. And the output end and the input end of the heating pipe are communicated with external heating equipment. When the wood fiber deep treatment equipment for papermaking is used, long fibers are separated out through the fiber separator and are conveyed and placed in the high-temperature and high-concentration beating machine, and then the heating pipe is adopted to heat the interior of the high-temperature and high-concentration beating machine, so that high-temperature and high-concentration beating treatment is carried out on fibers with high lignin content; the fiber quality is stabilized, and the problems of high energy consumption and fiber damage caused by conventional normal-temperature low-concentration disc mill pulping are avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of papermaking, and in particular relates to a device for deep processing wood fibers for papermaking. Background Art

[0002] The typical production process of domestic corrugated base paper, kraft linerboard, tube paper and other industrial packaging papers is to use recycled linerboard as raw material, prepare pulp through OCC waste paper pulp line and then feed it to paper machine for papermaking. With the implementation of waste paper import restrictions, the proportion of domestic waste OCC in raw materials has increased, and the production of medium and high-grade kraft linerboard and high-strength corrugated base paper using domestic waste OCC as the main raw material has become the main process of major paper mills.

[0003] However, domestic waste OCC pulp has the following characteristics: many recycling times, a small proportion of long fibers, a high content of fine components in the pulp, and reduced quality of the fibers themselves. Waste paper recycling and processing technology needs to be continuously improved to stabilize the quality of paper products. Utility Model Content

[0004] In view of the deficiencies in the prior art, the technical problem to be solved by the utility model is to provide a deep processing device for wood fiber for papermaking, which can retain the fiber length as much as possible during the recycling fiber processing process, improve the fiber fibrillation, stabilize the paper quality and reduce production costs.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is: a deep processing equipment for wood fibers for papermaking, including a fiber separator and a high-temperature and high-concentration pulper, the long fiber output port of the fiber separator is connected to the input port of the high-temperature and high-concentration pulper, a heating pipe is wound inside the wall of the high-temperature and high-concentration pulper, and the output end and input end of the heating pipe are connected to an external heating device.

[0006] The high-temperature and high-concentration pulping machine includes a pulping barrel, an upper grinding plate and a lower grinding plate. A lifting cylinder is installed on the high-temperature and high-concentration pulping machine. The lifting end of the lifting cylinder is placed in the pulping barrel. The upper grinding plate is installed on the lifting end of the lifting cylinder. A rotating component for driving the upper grinding plate to rotate is installed on the lifting end of the lifting cylinder. The lower grinding plate is installed at the bottom of the pulping barrel, and the grinding surface of the upper grinding plate is arranged opposite to the grinding surface of the lower grinding plate.

[0007] The rotating assembly includes a rotating screw, a rack, a rotating gear and a driving gear. The rotating screw is rotatably installed on the lifting end of the lifting cylinder. The rack is installed on the lifting end of the lifting cylinder and is arranged parallel to the rotating screw. The rotating gear is rotatably installed in the beating barrel and is meshed with the rack. The driving gear is coaxially rotatably connected to the rotating gear, and the driving gear is meshed with the thread of the rotating screw.

[0008] A mounting seat is installed at the top of the interior of the beating barrel, and the rotating gear is rotatably mounted on the mounting seat. A driving motor for driving the rotating gear to rotate is also installed on the mounting seat.

[0009] The upper grinding plate and the lower grinding plate are respectively provided with a loading port and a unloading port, and the diameter of the unloading port is smaller than the diameter of the loading port.

[0010] A discharge port is installed below the beating barrel.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] The utility model discloses a deep processing equipment for wood fiber for papermaking. When in use, long fibers are separated out by a fiber separator and transferred to a high-temperature and high-concentration pulper. Then, a heating tube is used to heat the inside of the high-temperature and high-concentration pulper, thereby subjecting fibers with high lignin content to high-temperature and high-concentration pulping treatment, stabilizing the fiber quality, and avoiding conventional low-concentration disc grinding pulping at room temperature, which has high energy consumption and causes damage to the fibers. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of the processing equipment of the utility model;

[0014] Figure 2 It is a schematic diagram of the cross-sectional structure of the high-temperature and high-concentration beating machine of the utility model;

[0015] Figure 3 It is a schematic diagram of the back structure of the rotating assembly of the utility model.

[0016] Markings in the figure: 1. Fiber separator; 2. High-temperature and high-concentration pulping machine; 3. Heating tube; 4. Pulping barrel; 5. Upper grinding plate; 6. Lower grinding plate; 7. Rotating screw; 8. Rack; 9. Rotating gear; 10. Driving gear; 11. Mounting seat; 12. Driving motor; 13. Loading port; 14. Unloading port; 15. Lifting cylinder. DETAILED DESCRIPTION

[0017] In order to make the above features and advantages of the present invention more obvious and understandable, embodiments are given below with reference to the accompanying drawings for detailed description as follows.

[0018] like Figure 1-Figure 3As shown, this embodiment provides a deep processing equipment for wood fiber for papermaking, including a fiber separator 1 and a high-temperature high-concentration pulper 2. The long fiber output port of the fiber separator 1 is connected to the input port of the high-temperature high-concentration pulper 2. A heating tube 3 is wound inside the wall of the high-temperature high-concentration pulper 2. The output end and input end of the heating tube 3 are connected to an external heating device. When in use, the long fibers are separated by the fiber separator 1 and transferred to the high-temperature high-concentration pulper 2. Then, the heating tube 3 is used to heat the inside of the high-temperature high-concentration pulper 2, so as to perform high-temperature high-concentration pulping treatment on the fibers with high lignin content, stabilize the fiber quality, and avoid conventional low-concentration disc grinding at room temperature, which has high energy consumption and causes damage to the fibers. Among them, high-concentration pulping refers to the pulping method carried out at a concentration range of 20-30% in pulping, papermaking or fiber preparation production.

[0019] Furthermore, the high temperature and high concentration pulping machine 2 includes a pulping barrel 4, an upper grinding plate 5 and a lower grinding plate 6. A lifting cylinder 15 is installed on the high temperature and high concentration pulping machine 2. The lifting end of the lifting cylinder 15 is placed in the pulping barrel 4. The upper grinding plate 5 is installed on the lifting end of the lifting cylinder 15. A rotating assembly for driving the upper grinding plate 5 to rotate is installed on the lifting end of the lifting cylinder 15. The lower grinding plate 6 is installed at the bottom of the pulping barrel 4. The grinding surface of the upper grinding plate 5 is arranged opposite to the grinding surface of the lower grinding plate 6. Specifically, the upper grinding plate 5 and the lower grinding plate 6 are respectively provided with an upper material port 13 and a lower material port 14, and the diameter of the lower material port 14 is smaller than the diameter of the upper material port 13. A discharge port is installed below the pulping barrel 4. During pulping, the material enters the lower grinding plate 6 between the upper grinding plates 5 through the feed port 13, and then the upper grinding plate 5 is driven by the lifting cylinder 15 to move up and down to stir and rotate to grind the pulp to prevent incomplete grinding. The ground pulp will directly flow out from the feed port 14 of the lower grinding plate 6 to prevent repeated grinding.

[0020] Further, the rotating assembly includes a rotating screw 7, a rack 8, a rotating gear 9 and a driving gear 10. The rotating screw 7 is rotatably mounted on the lifting end of the lifting cylinder 15. The rack 8 is mounted on the lifting end of the lifting cylinder 15 and is arranged parallel to the rotating screw 7. The rotating gear 9 is rotatably mounted in the beating barrel 4 and is meshed with the rack 8. The driving gear 10 is coaxially rotatably connected with the rotating gear 9, and the driving gear 10 is meshed with the thread of the rotating screw 7. In the process of the lifting end of the lifting cylinder 15 lifting up and down, its rack 8 will drive the rotating gear 9 to rotate, so that the rotating gear 9 drives the driving gear 10 to rotate, and the driving gear 10 will drive the rotating screw 7 to rotate, so that the rotating and grinding can be performed while moving up and down. Specifically, a mounting seat 11 is installed on the top of the beating barrel 4, and the rotating gear 9 is rotatably mounted on the mounting seat 11. A driving motor 12 that drives the rotating gear 9 to rotate is also installed on the mounting seat 11. It is also possible to drive the grinding by the driving motor 12 without lifting, and the driving motor 12 is a waterproof motor.

[0021] The above shows and describes the basic principles and main features of the invention and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the utility model. Without departing from the spirit and scope of the invention, the utility model may have various changes and improvements, which shall fall within the scope of the utility model to be protected. The scope of protection of the utility model shall be defined by the attached claims and their equivalents.

Claims

1. A deep processing equipment for wood fiber for papermaking, characterized in that: It includes a fiber separator and a high-temperature and high-concentration pulper. The long fiber output port of the fiber separator is docked with the input port of the high-temperature and high-concentration pulper. A heating pipe is wound inside the wall of the high-temperature and high-concentration pulper. The output end and input end of the heating pipe are connected to an external heating device.

2. The deep processing equipment for wood fiber for papermaking according to claim 1, characterized in that: The high-temperature and high-concentration pulping machine includes a pulping barrel, an upper grinding plate and a lower grinding plate. A lifting cylinder is installed on the high-temperature and high-concentration pulping machine. The lifting end of the lifting cylinder is placed in the pulping barrel. The upper grinding plate is installed on the lifting end of the lifting cylinder. A rotating component for driving the upper grinding plate to rotate is installed on the lifting end of the lifting cylinder. The lower grinding plate is installed at the bottom of the pulping barrel, and the grinding surface of the upper grinding plate is arranged opposite to the grinding surface of the lower grinding plate.

3. The deep processing equipment for wood fiber for papermaking according to claim 2 is characterized in that: The rotating assembly includes a rotating screw, a rack, a rotating gear and a driving gear. The rotating screw is rotatably installed on the lifting end of the lifting cylinder. The rack is installed on the lifting end of the lifting cylinder and is arranged parallel to the rotating screw. The rotating gear is rotatably installed in the beating barrel and is meshed with the rack. The driving gear is coaxially rotatably connected to the rotating gear, and the driving gear is meshed with the thread of the rotating screw.

4. The deep processing equipment for wood fiber for papermaking according to claim 3 is characterized in that: A mounting seat is installed at the top of the interior of the beating barrel, and the rotating gear is rotatably mounted on the mounting seat. A driving motor for driving the rotating gear to rotate is also installed on the mounting seat.

5. The deep processing equipment for wood fiber for papermaking according to claim 2, characterized in that: The upper grinding plate and the lower grinding plate are respectively provided with a loading port and a loading port, and the diameter of the loading port is smaller than the diameter of the loading port.

6. The deep processing equipment for wood fiber for papermaking according to claim 2, characterized in that: A discharge port is installed below the beating barrel.

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