Pulping device for paper product production and use method thereof

Abstract

The invention relates to the technical field of paper product production repulping, in particular to a paper product production repulping device which comprises a repulping device body, a supporting frame, a strong magnetic adsorption cylinder, a driving assembly, a connector, a stirring rod, a smashing blade, an opening assembly and a cleaning scraper. A feeding port is formed in the upper end of the pulping device body, the upper end of the pulping device body is connected with a strong magnetic adsorption cylinder, the right side of the supporting frame is connected with a driving assembly, the driving assembly comprises a positioning sleeve, and the inner side of the positioning sleeve is connected with a stirring rod; feeding raw materials are pretreated through the strong magnetic adsorption barrel, large-size metal impurities are rapidly adsorbed, then tiny metal particles are continuously adsorbed through the electromagnet in the rotating process of the mixing rod, double guarantees of coarse screening and fine filtering are formed, the metal removal rate is effectively increased, and through linkage of the distraction assembly and the distraction device, the large-size metal impurities can be effectively removed. And the cleaning scraping plate is driven to press downwards to scrape fibers, so that long-term stable operation of equipment is guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of pulping for paper product production, and in particular to a pulping device for paper product production and a use method thereof. Background Art

[0002] Paper recycling is a key initiative to promote sustainable resource utilization and green development. Globally, the annual amount of waste paper generated globally is enormous. Recycling one ton of waste paper is equivalent to protecting 17 mature trees, reducing water, electricity, and chemical consumption, effectively alleviating the pressure of over-exploitation of forest resources and safeguarding ecological balance. Environmentally, if waste paper is incinerated or landfilled, it not only releases greenhouse gases such as methane, exacerbating climate warming, but also potentially pollutes soil and groundwater. Recycling paper can reduce carbon emissions by approximately 60%, contributing to global carbon reduction goals. Paper production pulping equipment is a key piece of equipment in the paper recycling process. However, existing paper production pulping equipment often encounters problems with recycled corrugated paper, as metal impurities such as nails and staples are often present in the paper. This can damage the shredder blades during the subsequent shredding process, leading to frequent failures. Furthermore, residual impurities in the pulp significantly reduce the strength and cleanliness of the paper, impacting the quality of the paper product. Furthermore, the separation filter in the equipment is easily clogged by fibers, requiring frequent shutdowns for cleaning, which affects filtration speed.

[0003] Therefore, in order to solve the problems that the conventional pulping device for paper products is prone to incomplete removal of impurities, affecting the pulp quality, and the filter screen is easily clogged, a paper product production pulping device and a method of using the same can be designed. Summary of the Invention

[0004] In order to overcome the problems of incomplete removal of impurities in traditional pulping devices for paper products, which affects the quality of pulp and the problem that the filter screen is easily clogged.

[0005] The technical solution of the present invention is as follows: a pulping device for paper product production includes a pulping device main body, a support frame, a strong magnetic adsorption cylinder, a driving assembly, a connecting head, a stirring rod, a crushing blade, a spreading assembly and a cleaning scraper. The outer surface of the pulping device main body is fixedly connected to the support frame, the upper end of the pulping device main body is provided with a feed port, the upper end of the pulping device main body is connected to the strong magnetic adsorption cylinder, the right side of the support frame is connected to the driving assembly, the driving assembly includes a positioning sleeve, the inner side of the positioning sleeve is connected to the stirring rod, the stirring rod includes a mixing rod, the surface of the mixing rod is fixedly connected to the crushing blade, the surface of the crushing blade is connected to the spreading assembly, the spreading assembly includes a connecting arm and a movable rod, the lower end of the movable rod is fixedly connected to the cleaning scraper, the inner side of the pulping device main body is fixedly connected to a spreader, the inner side of the pulping device main body is fixedly connected to a partition plate, the upper end of the partition plate is connected to a separation filter, and the lower end of the pulping device main body is fixedly connected to a post-processing bucket.

[0006] Preferably, a support frame is fixed to the outer surface of the pulping device body to form a rigid support frame. When the waste paper raw material enters through the feed port, the strong magnetic adsorption cylinder pre-treats the raw material, quickly adsorbs and separates large-sized metal impurities, and the driving component can provide rotational power for the stirring rod, which facilitates the full mixing and stirring of the slurry through the stirring rod, and the pulp fibers are sheared and torn by the crushing blade to achieve crushing. The cooperation of the support component and the cleaning scraper facilitates the automatic cleaning of the separation filter, thereby ensuring the long-term stable operation of the device.

[0007] Preferably, the drive assembly also includes a drive motor, which is fixedly installed on the right side of the support frame. The output end of the drive motor is fixedly connected to a first bevel gear, the upper end of the first bevel gear is meshed with a second bevel gear, and the upper end of the second bevel gear is fixedly connected to a mixing rod.

[0008] Preferably, a positioning sleeve is fixedly connected to the lower end of the partition plate, and the positioning sleeve is rotatably connected to the mixing rod.

[0009] Preferably, the mixing rod consists of a vertical rod and a horizontal rod, the vertical rod surface of the mixing rod is fixedly connected to a first spiral sheet, the end of the mixing rod away from the first spiral sheet is fixedly connected to a second spiral sheet, and the spiral direction of the second spiral sheet is opposite to that of the first spiral sheet.

[0010] Preferably, a connecting arm is fixedly connected to the surface of the mixing rod, the lower end of the connecting arm is fixedly connected to two U-shaped parts, the inner side of the U-shaped part is slidably connected to a movable rod, and the lower end of the movable rod is fixedly connected to a cleaning scraper.

[0011] Preferably, a corrugated protective sleeve is connected between the connecting arm and the movable rod, and a spring is fixedly installed on the inner side of the corrugated protective sleeve.

[0012] Preferably, three spreaders are provided and are arranged in one-to-one correspondence with the separation filter screens.

[0013] Preferably, a connector is fixed to the lower end of the mixing rod, an electromechanical box is fixed to the lower end of the connector, and an electromagnet is installed inside the electromechanical box.

[0014] Preferably, a discharge port is provided at the lower end of the post-processing bucket, an outer surface of the discharge port is connected to a connecting cover, and the connecting cover is threadedly connected to the discharge port.

[0015] A method for using a pulping device for paper product production includes the pulping device for paper product production as described above, and the steps are as follows: In the first step, the waste paper raw material is fed into the pulping device through the feed port, and the raw material is pre-treated by a strong magnetic adsorption cylinder to adsorb and separate large-sized metal impurities; In the second step, the drive motor on the mounting plate at the right end of the support frame is started, and the first bevel gear is driven to rotate by the output end of the drive motor. Under the action of the first bevel gear, the second bevel gear is driven to rotate. At the same time, the mixing rod rotates in the positioning sleeve to realize power transmission. Then, the crushing blade fixed to the surface of the mixing rod rotates at high speed to shear and tear the pulp fibers, achieving preliminary crushing. In the third step, water is added to the pulping device body. Through the synergistic action of the first and second spirals, the first spiral pushes the pulp upward in the center area, while the second spiral creates reverse stirring in the peripheral area, thereby enhancing the pulp circulation efficiency. In the fourth step, when the mixing rod rotates, the connecting arm rotates accordingly. When the connecting arm rotates to the tip of the spreader, the movable rod slides in the U-shaped part and gradually moves away from the connecting arm. At the same time, the spring is stretched, so that the lower edge of the cleaning scraper is close to the separation filter, achieving scraping to prevent the separation filter from clogging due to fiber accumulation; In the fifth step, the crushed pulp that meets the standards passes through the separation filter and enters the post-processing bucket, while the coarse fibers that fail to pass through are intercepted above the separation filter and continue to be crushed; In the sixth step, the mixing rod rotates, driving the electromagnet in the post-processing bucket to rotate synchronously. The electromagnet in the electromechanical box is energized, and the iron core end of the electromagnet absorbs the remaining tiny metal particles. Step 7: Remove the connecting cover and discharge the qualified slurry from the discharge port.

[0016] Beneficial effects of the present invention: The paper product production pulping device and its use method pre-treat the feed raw materials through a strong magnetic adsorption cylinder, quickly adsorb large-sized metal impurities, and then continuously adsorb tiny metal particles through the electromagnet during the rotation of the mixing rod, forming a "coarse screening + fine filtration" double guarantee, effectively improving the metal removal rate, and avoiding the contamination of subsequent equipment and finished paper by metal impurities. The opposite spiral design of the first spiral and the second spiral is also used to form an upward flow in the central area and a convection in the peripheral area, and cooperate with the shearing and tearing action of the crushing blade to achieve rapid refinement of the fiber bundle. The expansion component is linked to the expander. When the connecting arm rotates to the tip of the expander, the spring drives the movable rod to drive the cleaning scraper to press down, close to the surface of the separation filter to scrape the fibers, avoid filter clogging, and thus ensure long-term stable operation of the equipment. Compared with the traditional pulping method, this method is particularly suitable for processing corrugated cardboard raw materials mixed with metal accessories, achieving efficient removal of metal impurities while effectively improving the quality of recycled paper. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the first overall three-dimensional structure of the pulping device of the present invention; Figure 2 This is a schematic diagram of the second three-dimensional structure of the pulping device of the present invention; Figure 3 This is a schematic diagram of the cross-sectional three-dimensional structure of the main body of the pulping device of the present invention; Figure 4 This is a schematic diagram of the three-dimensional structure of the stirring rod of the present invention; Figure 5 It is a schematic diagram of the overall cross-sectional three-dimensional structure of the pulping device of the present invention; Figure 6 This is a schematic diagram of the partially enlarged three-dimensional structure of point A of the present invention.

[0018] Explanation of the accompanying symbols: 1. Pulping device body; 2. Support frame; 3. Feed port; 4. Strong magnetic adsorption cylinder; 5. Drive assembly; 6. Stirring rod; 7. Crushing blade; 8. Spreading assembly; 9. Cleaning scraper; 10. Spreader; 11. Partition plate; 12. Separation filter; 13. Connector; 14. Electromechanical box; 15. Electromagnet; 16. Post-processing bucket; 17. Discharge port; 18. Connecting cover; 501. Drive motor; 502. First bevel gear; 503. Second bevel gear; 504. Positioning sleeve; 601. Mixing rod; 602. First spiral plate; 603. Second spiral plate; 801. Connecting arm; 802. U-shaped part; 803. Movable rod; 804. Corrugated protective cover; 805. Spring. DETAILED DESCRIPTION

[0019] The present invention will be further described below with reference to the accompanying drawings and examples.

[0020] See also Figures 1-6The present invention provides an embodiment: a pulping device for paper product production, comprising a pulping device body 1, a support frame 2, a strong magnetic adsorption cylinder 4, a driving assembly 5, a connecting head 13, a stirring rod 6, a crushing blade 7, a support assembly 8 and a cleaning scraper 9. The outer surface of the pulping device body 1 is fixedly connected to the support frame 2, the upper end of the pulping device body 1 is provided with a feed port 3, the upper end of the pulping device body 1 is connected to the strong magnetic adsorption cylinder 4, the right side of the support frame 2 is connected to the driving assembly 5, the driving assembly 5 includes a positioning sleeve 504, the inner side of the positioning sleeve 504 is connected to the stirring rod 6, the stirring rod 6 includes a mixing rod 601, the surface of the mixing rod 601 is fixedly connected to the crushing blade 7, the surface of the crushing blade 7 is connected to the support assembly 8, the support assembly 8 includes a connecting arm 801 and a movable rod 803, the lower end of the movable rod 803 is fixed A cleaning scraper 9 is fixedly connected, a spreader 10 is fixed on the inner side of the pulping device body 1, a partition plate 11 is fixedly connected to the inner side of the pulping device body 1, and a separation filter 12 is connected to the upper end of the partition plate 11. A post-processing bucket 16 is fixedly connected to the lower end of the pulping device body 1, which is fixed to the outer surface of the pulping device body 1 through a support frame 2 to form a rigid support frame. When the waste paper raw material enters through the feed port 3, the strong magnetic adsorption cylinder 4 pre-treats the raw material, quickly adsorbs and separates large-sized metal impurities, and can provide rotational power to the stirring rod 6 through the driving component 5. The stirring rod 6 facilitates the full mixing and stirring of the slurry, and the crushing blade 7 shears and tears the pulp fibers to achieve crushing. The cooperation of the spreader component 8 and the cleaning scraper 9 facilitates the automatic cleaning of the separation filter 12, thereby ensuring the long-term stable operation of the device.

[0021] See also Figure 2-Figure 4In this embodiment, the driving assembly 5 also includes a driving motor 501. The driving motor 501 is fixedly installed on the right side of the support frame 2. The output end of the driving motor 501 is fixedly connected to the first bevel gear 502. The upper end of the first bevel gear 502 is meshed with the second bevel gear 503. The upper end of the second bevel gear 503 is fixedly connected to the mixing rod 601. The driving motor 501 converts the horizontal rotation power into a vertical direction through the meshing of the first bevel gear 502 and the second bevel gear 503, thereby driving the mixing rod 601 to rotate. The lower end of the partition plate 11 is fixedly connected to the positioning sleeve 504. The positioning sleeve 504 is rotatably connected to the mixing rod 601. 1 is rotatably connected in the positioning sleeve 504 to limit axial movement, thereby improving transmission stability. The mixing rod 601 consists of a vertical rod and a horizontal rod. The vertical rod surface of the mixing rod 601 is fixedly connected to a first spiral piece 602. The end of the mixing rod 601 away from the first spiral piece 602 is fixedly connected to a second spiral piece 603. The spiral direction of the second spiral piece 603 is opposite to that of the first spiral piece 602. The first spiral piece 602 can push the slurry to roll upward to prevent the fibers from being deposited on the top. The second spiral piece 603 has a spiral direction opposite to that of the first spiral piece 602, so that up and down convection is formed during rotation, so that the fibers are more fully in contact with the crushing blade 7.

[0022] See also Figure 4-Figure 6 In this embodiment, a connecting arm 801 is fixedly connected to the surface of the mixing rod 601, and two U-shaped parts 802 are fixedly connected to the lower end of the connecting arm 801. A movable rod 803 is slidably connected to the inner side of the U-shaped part 802, and a cleaning scraper 9 is fixedly connected to the lower end of the movable rod 803. The cleaning scraper 9 is driven down by the downward movement of the U-shaped part 802, so that the fibers attached to the separation filter 12 can be scraped off. A corrugated protective cover 804 is connected between the connecting arm 801 and the movable rod 803, and a spring 805 is fixedly installed on the inner side of the corrugated protective cover 804. The elastic force of the spring 805 facilitates the rapid reset of the cleaning scraper 9 after the connecting arm 801 and the movable rod 803 are stretched apart. The opener 10 is provided with three 12 is set in a one-to-one correspondence. The opener 10 is used to easily open the connecting arm 801 and the movable rod 803 to facilitate automatic cleaning of the separation filter 12. The lower end of the mixing rod 601 is fixed with a connecting head 13. The lower end of the connecting head 13 is fixed with an electromechanical box 14. The inner side of the electromechanical box 14 is installed with an electromagnet 15. The electromagnet 15 is energized when the mixing rod 601 rotates to adsorb tiny metal particles that are not intercepted by the strong magnetic adsorption cylinder 4, thereby further improving the metal removal rate. A discharge port 17 is provided at the lower end of the post-processing bucket 16. The outer surface of the discharge port 17 is connected to a connecting cover 18, which is threadedly connected to the discharge port 17. The discharge port 17 is threadedly connected to the connecting cover 18, which facilitates the removal of the connecting cover 18 to discharge the slurry.

[0023] A method for using a pulping device for paper product production includes the pulping device for paper product production as described above, and the steps are as follows: In the first step, the waste paper raw material is fed into the pulping device body 1 through the feed port 3, and the raw material is pre-treated by the strong magnetic adsorption cylinder 4 to adsorb and separate large-sized metal impurities; In the second step, the drive motor 501 on the mounting plate at the right end of the support frame 2 is started, and the first bevel gear 502 is driven to rotate by the output end of the drive motor 501. Under the action of the first bevel gear 502, the second bevel gear 503 is driven to rotate. At the same time, the mixing rod 601 rotates in the positioning sleeve 504 to realize power transmission. Then, the crushing blade 7 fixedly connected to the surface of the mixing rod 601 rotates at high speed to shear and tear the pulp fibers, thereby achieving preliminary crushing. In the third step, water is added to the pulping device body 1. Through the coordinated action of the first spiral blade 602 and the second spiral blade 603, the first spiral blade 602 pushes the pulp to roll upward in the center area, and the second spiral blade 603 creates reverse stirring in the peripheral area, thereby enhancing the pulp circulation efficiency. In the fourth step, when the mixing rod 601 rotates, the connecting arm 801 rotates accordingly. When the connecting arm 801 rotates to the tip of the spreader 10, the movable rod 803 slides in the U-shaped member 802 and gradually moves away from the connecting arm 801. At the same time, the spring 805 is stretched, so that the lower edge of the cleaning scraper 9 is in close contact with the separation filter 12, thereby scraping and preventing the separation filter 12 from being blocked by fiber accumulation. In the fifth step, the pulp that meets the standards after crushing passes through the separation filter 12 and enters the post-processing bucket 16. The coarse fibers that fail to pass through the separation filter 12 are intercepted above the separation filter 12 and continue to be crushed; In the sixth step, the mixing rod 601 rotates, driving the electromagnet 15 in the post-processing bucket 16 to rotate synchronously. The electromagnet 15 in the electromechanical box 14 is energized, and the iron core end of the electromagnet 15 absorbs the remaining tiny metal particles. Step 7: Remove the connecting cover 18 and discharge the qualified slurry from the discharge port 17.

[0024] Through the above steps, the raw materials are pretreated by using a strong magnetic adsorption cylinder, large-sized metal impurities are quickly adsorbed and separated, and the pulp fibers are broken by the synergistic action of the stirring rod and the crushing blade. The automatic cleaning of the separation filter is facilitated by the cooperation of the expansion component and the cleaning scraper, and the tiny metal particles can be further removed by the electromagnet 15, thereby facilitating the processing of corrugated paperboard raw materials mixed with metal accessories, so as to solve the problem that the traditional pulping device for paper products is prone to incomplete impurity removal, affecting the pulp quality, and the filter is prone to clogging.

[0025] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the scope of knowledge of those skilled in the art without departing from the spirit of the present invention.

Claims

1. A pulping device for producing paper products, comprising a pulping device body (1); characterized in that: The invention also includes a support frame (2), a strong magnetic adsorption cylinder (4), a driving assembly (5), a connector (13), a stirring rod (6), a crushing blade (7), a spreading assembly (8) and a cleaning scraper (9). The outer surface of the pulping device body (1) is fixedly connected to the support frame (2), the upper end of the pulping device body (1) is provided with a feed port (3), the upper end of the pulping device body (1) is connected to the strong magnetic adsorption cylinder (4), the right side of the support frame (2) is connected to the driving assembly (5), the driving assembly (5) includes a positioning sleeve (504), the inner side of the positioning sleeve (504) is connected to the stirring rod (6), the stirring rod (6 ) comprises a mixing rod (601), a crushing blade (7) is fixedly connected to the surface of the mixing rod (601), a spreading assembly (8) is connected to the surface of the crushing blade (7), the spreading assembly (8) comprises a connecting arm (801) and a movable rod (803), the lower end of the movable rod (803) is fixedly connected to a cleaning scraper (9), a spreader (10) is fixed on the inner side of a pulping device body (1), a partition plate (11) is fixedly connected to the inner side of the pulping device body (1), a separation filter (12) is connected to the upper end of the partition plate (11), and a post-processing bucket (16) is fixedly connected to the lower end of the pulping device body (1).

2. The pulping device for paper product production according to claim 1, characterized in that: The driving assembly (5) further comprises a driving motor (501), the driving motor (501) being fixedly mounted on the right side of the support frame (2), the output end of the driving motor (501) being fixedly connected to a first helical gear (502), the upper end of the first helical gear (502) being meshedly connected to a second helical gear (503), and the upper end of the second helical gear (503) being fixedly connected to a mixing rod (601).

3. The pulping device for paper product production according to claim 1, characterized in that: A positioning sleeve (504) is fixedly connected to the lower end of the partition plate (11), and the positioning sleeve (504) is rotatably connected to the mixing rod (601).

4. The pulping device for paper product production according to claim 3, characterized in that: The mixing rod (601) consists of a vertical rod and a horizontal rod. A first spiral piece (602) is fixedly connected to the surface of the vertical rod of the mixing rod (601). A second spiral piece (603) is fixedly connected to one end of the mixing rod (601) away from the first spiral piece (602). The spiral direction of the second spiral piece (603) is opposite to the spiral direction of the first spiral piece (602).

5. The pulping device for paper product production according to claim 4, characterized in that: A connecting arm (801) is fixedly connected to the surface of the mixing rod (601), the lower end of the connecting arm (801) is fixedly connected to two U-shaped pieces (802), the inner side of the U-shaped piece (802) is slidably connected to a movable rod (803), and the lower end of the movable rod (803) is fixedly connected to a cleaning scraper (9).

6. The pulping device for paper product production according to claim 5, characterized in that: A corrugated protective sleeve (804) is connected between the connecting arm (801) and the movable rod (803), and a spring (805) is fixedly installed on the inner side of the corrugated protective sleeve (804).

7. The pulping device for paper product production according to claim 1, characterized in that: Three spreaders (10) are provided and are arranged in a one-to-one correspondence with the separation filter screens (12).

8. The pulping device for paper product production according to claim 1, characterized in that: A discharge port (17) is provided at the lower end of the post-processing bucket (16), and a connecting cover (18) is connected to the outer surface of the discharge port (17), and the connecting cover (18) is threadedly connected to the discharge port (17).

9. The pulping device for paper product production according to claim 5, characterized in that: The lower end of the mixing rod (601) is fixedly connected to a connector (13), the lower end of the connector (13) is fixed to an electromechanical box (14), and an electromagnet (15) is installed inside the electromechanical box (14).

10. A method for using a pulping device for paper product production, characterized in that: The pulping device for producing paper products according to any one of claims 1 to 9 comprises the following steps: In the first step, the waste paper raw material is fed into the pulping device body (1) through the feed port (3), and the raw material is pre-treated by the strong magnetic adsorption cylinder (4) to adsorb and separate large-sized metal impurities; In the second step, the driving motor (501) on the mounting plate at the right end of the support frame (2) is started, and the first bevel gear (502) is driven to rotate by the output end of the driving motor (501). Under the action of the first bevel gear (502), the second bevel gear (503) is driven to rotate. At the same time, the mixing rod (601) rotates in the positioning sleeve (504) to achieve power transmission. Then, the crushing blade (7) fixedly connected to the surface of the mixing rod (601) rotates at high speed to shear and tear the pulp fibers, thereby achieving preliminary crushing. In the third step, water is added to the pulping device body (1). Through the coordinated action of the first spiral blade (602) and the second spiral blade (603), the first spiral blade (602) pushes the pulp to roll upward in the central area, and the second spiral blade (603) forms reverse stirring in the peripheral area, thereby enhancing the pulp circulation efficiency; In the fourth step, when the mixing rod (601) rotates, the connecting arm (801) rotates accordingly. When the connecting arm (801) rotates to the tip of the spreader (10), the movable rod (803) slides in the U-shaped member (802) and gradually moves away from the connecting arm (801). At the same time, the spring (805) is stretched, so that the lower edge of the cleaning scraper (9) is closely attached to the separation filter (12), thereby scraping to prevent the separation filter (12) from being blocked due to fiber accumulation; In the fifth step, the slurry that has been crushed and meets the standards passes through the separation filter (12) and enters the post-processing bucket (16), and the coarse fibers that have not passed through the separation filter (12) are intercepted above the separation filter (12) and continue to be crushed; In the sixth step, the mixing rod (601) rotates, driving the electromagnet (15) to rotate synchronously in the post-processing bucket (16), energizing the electromagnet (15) in the electromechanical box (14), and the iron core end of the electromagnet (15) absorbs the remaining tiny metal particles; Step 7: Remove the connecting cover (18) and discharge the qualified slurry from the discharge port (17).

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