Wood pulp refining extractor
By designing a rotating mechanism and grinding rollers, the problem of pulp adhesion in the wood pulp refinement device was solved, achieving efficient and uniform wood pulp refinement and improving grinding quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DANGYANG RUIYANG NEW MATERIALS TECHNOLOGY CO LTD
- Filing Date
- 2025-06-24
- Publication Date
- 2026-07-10
AI Technical Summary
In existing wood pulp refining devices, the problem of wallpaper paste adhesion inside the grinding box leads to a decrease in grinding quality and low efficiency.
The design employs a rotating mechanism and grinding roller, including a motion gear, a fixed gear plate, a rotating shaft, a guide shaft, a connecting shaft, a transmission belt, a transmission shaft, and a fixed base. Combined with a servo motor drive, it realizes the rotation and self-rotation of the refining box. Raised strips and heating rods are set on the grinding roller to reduce the viscosity of the pulp.
It effectively solved the problem of pulp adhesion to the inner wall, improved the efficiency and quality of wood pulp refinement and extraction, and ensured the uniformity and effect of grinding.
Smart Images

Figure CN224478343U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of wood pulp refining and extraction technology, specifically to a wood pulp refining and extraction device. Background Technology
[0002] With the increasing global demand for renewable resources and growing awareness of environmental protection, wood pulp refining and extraction technology has gradually gained attention. The steps of wood pulp refining and extraction are divided into raw material preparation, pretreatment, refining and removal, separation and washing, and post-treatment. In the refining and removal step, the wood is physically treated using equipment such as pulpers or refining machines to further fiberize it.
[0003] Chinese Patent Publication No. CN222313649U discloses a pulp refiner. In this invention, the pulp refiner includes a refiner body, which is composed of a grinding chamber, a channel pipe, a storage tank, and a discharge pipe. The grinding chamber and the storage tank are connected by the channel pipe. In this invention, when the grinding roller is at its highest position, the distance between the grinding roller and the cavity of the grinding chamber is at its maximum. The pulp is first coarsely ground, and the coarsely ground pulp falls into the storage tank. A circulating pump then pumps the coarsely ground pulp back into the grinding chamber for further grinding. After all the pulp has been coarsely ground, the height of the grinding roller is lowered. When the grinding roller is at its lowest position, the coarsely ground pulp is finely ground. The qualified finely ground pulp flows out through the through-hole and the discharge pipe, while larger pieces of pulp continue to be circulated for grinding. The pulp refiner described above has the following shortcomings:
[0004] However, while the aforementioned device improves upon the uneven grinding problem of traditional pulp refiners by eliminating the need for repeated testing and re-grinding, thus increasing refining efficiency, the pulp adheres to the inner wall of the grinding chamber during grinding. Furthermore, the inclined surface of the grinding chamber increases the contact area between the pulp and the inner wall, leading to further adhesion and a decrease in the quality of pulp refinement. Therefore, there is an urgent need for a wood pulp refinement and extraction device. Utility Model Content
[0005] In view of this, in order to overcome the defects of the above-mentioned technology, this utility model provides a wood pulp refining and extraction device.
[0006] To achieve the above objectives, this utility model provides the following technical solution:
[0007] A wood pulp refining and extraction device includes a frame, a servo motor is fixedly connected to one side of the top of the frame via a support plate, and a rotating mechanism is provided on one side of the frame. A U-shaped frame is fixedly connected to one end of the rotating mechanism, and a refining box is rotatably connected to the inner side of the U-end of the U-shaped frame. Baffles are fixedly connected to the top and bottom of the refining box, respectively.
[0008] A rotating mechanism is provided between the frame and the U-shaped frame, and the driving end of the rotating mechanism is fixedly connected to the output end of the servo motor. A feed inlet and a discharge outlet are fixedly connected to one side of the circumference of the refining box.
[0009] As a further embodiment of this utility model: the rotating mechanism includes a moving gear, a fixed gear plate, a rotating shaft, a guide shaft, a connecting shaft, a transmission belt, a transmission shaft, and a fixed seat, and the fixed seat is fixedly connected to one side of the U-shaped frame, and the transmission shaft is rotatably connected inside the fixed seat.
[0010] As a further embodiment of this utility model: the guide shaft is threaded to the center of the top and bottom baffles of the refining box, and the guide shaft rotates through the U-shaped end of the U-shaped frame, and the connecting shaft is threaded to the bottom end of one of the guide shafts.
[0011] As a further embodiment of this utility model: the bottom circumference of the connecting shaft and the bottom circumference of the transmission shaft are respectively connected to transmission wheels by threads, the transmission belt is sleeved on the circumference of the two transmission wheels, and the moving gear is connected to the top of the transmission shaft by threads.
[0012] As a further embodiment of this utility model: the fixed gear plate is fixedly connected to the top side of the frame, and the rotating shaft rotates through the center of the fixed gear plate, and the fixed gear plate meshes with the moving gear.
[0013] As a further embodiment of this utility model: one end of the rotating shaft passes through the frame and is connected to the output end of the servo motor, and the other end of the rotating shaft is fixedly connected to one side of the U-shaped frame by a thread.
[0014] As a further improvement of this utility model: the two guide shafts are connected to the same grinding roller at opposite ends by threads, and the outer circumference of the grinding roller is provided with raised strips at equal intervals.
[0015] As a further improvement of this invention, heating rods at equal intervals are provided on the outer circumference of the grinding roller near the convex strip at the top.
[0016] As a further improvement of this utility model, the refining box has a cylindrical structure.
[0017] Compared with the prior art, this utility model provides a wood pulp refining and extraction device, which has the following beneficial effects:
[0018] This extraction device, through the setting of a rotating mechanism including a moving gear, a fixed gear plate, a rotating shaft, a guide shaft, a connecting shaft, a transmission belt, a transmission shaft, and a fixed base, solves the problem of paper pulp adhesion in the grinding box in the prior art. The refining box rotates while also completing its own rotation, effectively improving the efficiency and quality of wood pulp refining and extraction. The extraction device also reduces the viscosity of the pulp by setting grinding rollers, convex strips, and heating rods in the refining box, ensuring the quality of pulp refining and grinding.
[0019] The parts of this device not covered herein are the same as or can be implemented using existing technologies. This utility model has a simple structure and is easy to operate. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of the main structure of the wood pulp refining and extraction device in this embodiment of the present invention;
[0021] Figure 2 This is a side view of the wood pulp refining and extraction device in an embodiment of the present invention.
[0022] Figure 3 This is a partial structural schematic diagram of the wood pulp refining and extraction device in an embodiment of this utility model;
[0023] Figure 4 This is a three-dimensional structural diagram of the wood pulp refining and extraction device in an embodiment of this utility model.
[0024] Explanation of reference numerals in the attached figures:
[0025] 1. Rack;
[0026] 2. Refining box; 201. Grinding roller; 202. Convex bar; 203. Heating rod;
[0027] 3. Servo motor;
[0028] 4. U-shaped frame;
[0029] 5. Rotating mechanism; 501. Moving gear; 502. Fixed gear disc; 503. Rotating shaft; 504. Guide shaft; 505. Connecting shaft; 506. Transmission belt; 507. Transmission shaft; 508. Fixed base;
[0030] 6. Feed inlet; 7. Discharge outlet. Detailed Implementation
[0031] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0032] In the description of this utility model, it should be noted that the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0033] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can also refer to the internal connection of two components; and they can refer to a wireless connection or a wired connection. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0034] This utility model embodiment provides, as follows: Figure 1-4 The device shown is a wood pulp refining and extraction device. The device includes a frame 1. A servo motor 3 is fixedly connected to one side of the top of the frame 1 via a support plate. A rotating mechanism 5 is provided on one side of the frame 1. A U-shaped frame 4 is fixedly connected to one end of the rotating mechanism 5. A refining box 2 is rotatably connected to the inner side of the U end of the U-shaped frame 4. Baffles are fixedly connected to the top and bottom of the refining box 2, respectively.
[0035] A rotating mechanism 5 is provided between the frame 1 and the U-shaped frame 4, and the driving end of the rotating mechanism 5 is fixedly connected to the output end of the servo motor 3. A feed inlet 6 and a discharge outlet 7 are fixedly connected to one side of the circumference of the refining box 2.
[0036] To solve the problem of wallpaper paste adhesion in the grinding box in existing technologies, such as Figure 1 , Figure 2 , Figure 3 As shown, the rotating mechanism 5 includes a moving gear 501, a fixed gear disc 502, a rotating shaft 503, a guide shaft 504, a connecting shaft 505, a transmission belt 506, a transmission shaft 507, and a fixed seat 508. The fixed seat 508 is fixedly connected to one side of the U-shaped frame 4, and the transmission shaft 507 is rotatably connected to the fixed seat 508.
[0037] The guide shaft 504 is threaded to the center of the top and bottom baffles of the refining box 2, and the guide shaft 504 rotates through the U-shaped end of the U-shaped frame 4. The connecting shaft 505 is threaded to the bottom end of one of the guide shafts 504.
[0038] The bottom circumference of the connecting shaft 505 and the bottom circumference of the transmission shaft 507 are respectively connected to the transmission wheel by threads. The transmission belt 506 is sleeved on the circumference of the two transmission wheels. The moving gear 501 is connected to the top of the transmission shaft 507 by threads.
[0039] The fixed gear 502 is fixedly connected to the top side of the frame 1, and the rotating shaft 503 rotates through the center of the fixed gear 502. The fixed gear 502 meshes with the moving gear 501. One end of the rotating shaft 503 passes through the frame 1 and is connected to the output end of the servo motor 3. The other end of the rotating shaft 503 is fixedly connected to one side of the U-shaped frame 4 by a thread.
[0040] During operation, the servo motor 3 is started to drive the rotating shaft 503 to rotate. The rotating shaft 503 drives the U-shaped frame 4 to rotate, and the refining box 2 located inside the U-shaped frame 4 is also driven to rotate synchronously. During this process, the moving gear 501 above the fixed seat 508 on one side of the rotating U-shaped frame 4 makes a circular motion around the circumferential teeth of the fixed gear disk 502. At the same time, the rotating moving gear 501 drives the transmission shaft 507 to rotate. The rotating transmission shaft 507 drives the guide shaft 504 connected to the connecting shaft 505 to rotate through the transmission belt 506. The rotating guide shaft 504 drives the refining box 2 to complete its own rotation. Thus, the problem of wallpaper pulp adhesion in the grinding box in the prior art is solved. The refining box 2 completes its own rotation while rotating, which effectively improves the efficiency and quality of wood pulp refining and extraction.
[0041] To improve the extraction and refinement of wood pulp, such as Figure 4 As shown, the two guide shafts 504 are connected to the same grinding roller 201 at opposite ends by threads, and the outer circumferential wall of the grinding roller 201 is provided with convex strips 202 at equal intervals;
[0042] The grinding roller 201 has heating rods 203 arranged at equal intervals on its top surface near the outer circumference of the protrusion 202;
[0043] When the guide shaft 504 rotates, the rotating guide shaft 504 drives the grinding roller 201 to rotate, and the pulp located in the refining box 2 is simultaneously driven by the convex strips 202 on the circumference of the grinding roller 201 to be ground and refined. At the same time, the heating rod 203 can complete the heating function, reduce the viscosity of the pulp, and ensure the quality of pulp refining and grinding.
[0044] As a preferred embodiment of this utility model, the refinement box 2 has a cylindrical structure, which facilitates operation.
[0045] Although the present invention has been disclosed above, its protection scope is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of this disclosure, and all such changes and modifications will fall within the protection scope of this invention.
Claims
1. A wood pulp refining and extraction apparatus, comprising a frame (1), characterized in that, A servo motor (3) is fixedly connected to one side of the top of the frame (1) via a support plate, and a rotating mechanism (5) is provided on one side of the frame (1). A U-shaped frame (4) is fixedly connected to one end of the rotating mechanism (5), and a refining box (2) is rotatably connected to the inner side of the U end of the U-shaped frame (4). A baffle is fixedly connected to the top and bottom of the refining box (2). A rotating mechanism (5) is provided between the frame (1) and the U-shaped frame (4), and the driving end of the rotating mechanism (5) is fixedly connected to the output end of the servo motor (3). A feed inlet (6) and a discharge outlet (7) are fixedly connected to one side of the circumference of the refining box (2).
2. The wood pulp refining and extraction device according to claim 1, characterized in that, The rotating mechanism (5) includes a moving gear (501), a fixed gear disc (502), a rotating shaft (503), a guide shaft (504), a connecting shaft (505), a transmission belt (506), a transmission shaft (507), and a fixed seat (508). The fixed seat (508) is fixedly connected to one side of the U-shaped frame (4), and the transmission shaft (507) is rotatably connected to the fixed seat (508).
3. The wood pulp refining and extraction device according to claim 2, characterized in that, The guide shaft (504) is threaded to the center of the top and bottom baffles of the refining box (2), and the guide shaft (504) rotates through the U-shaped end of the U-shaped frame (4). The connecting shaft (505) is threaded to the bottom end of one of the guide shafts (504).
4. The wood pulp refining and extraction apparatus according to claim 3, characterized in that, The bottom circumference of the connecting shaft (505) and the bottom circumference of the transmission shaft (507) are respectively connected to the transmission wheel by threads. The transmission belt (506) is sleeved on the circumference of the two transmission wheels, and the motion gear (501) is connected to the top of the transmission shaft (507) by threads.
5. The wood pulp refining and extraction apparatus according to claim 4, characterized in that, The fixed gear plate (502) is fixedly connected to the top side of the frame (1), and the rotating shaft (503) rotates through the center of the fixed gear plate (502). The fixed gear plate (502) meshes with the moving gear (501).
6. The wood pulp refining and extraction apparatus according to claim 5, characterized in that, One end of the rotating shaft (503) passes through the frame (1) and is connected to the output end of the servo motor (3). The other end of the rotating shaft (503) is fixedly connected to one side of the U-shaped frame (4) by a thread.
7. The wood pulp refining and extraction apparatus according to claim 2, characterized in that, The two guide shafts (504) are connected to the same grinding roller (201) at opposite ends by threads, and the outer circumference of the grinding roller (201) is provided with convex strips (202) at equal intervals.
8. The wood pulp refining and extraction apparatus according to claim 7, characterized in that, The grinding roller (201) has heating rods (203) arranged at equal intervals on the outer circumference of the top near the protrusion (202).
9. The wood pulp refining and extraction apparatus according to claim 1, characterized in that, The refining box (2) has a cylindrical structure.