A paper dissolving device for reducing residual material

Abstract

The utility model relates to a kind of back copy paper dissolving devices capable of reducing residual material, including overall shell, the inside fixed mounting of overall shell has inner bag, the surface of the inner bag is equipped with heating net, the top of overall shell is installed with cover, the top of cover is fixedly installed with motor by bolt, the output of motor is fixedly connected with rotating rod, the surface of rotating rod is fixedly connected with the stirring vane of the circumferential array distribution of several, the surface of rotating rod is fixedly connected with connecting rod, the end of connecting rod away from rotating rod is fixedly connected with mounting plate.The utility model is scraped by setting scraper, mounting table, slide column and spring and is composed of elastic scraping wall mechanism, when rotating rod rotates, make scraper always adhere to inner bag wall surface and automatically retract with resistance, realize the on-line continuous peeling of wall sticking residual material, reach the effect of significantly reducing residual material adhesion, improve fiber recovery rate.

Description

Technical Field

[0001] This utility model relates to the field of recycled paper dissolving technology, and in particular to a recycled paper dissolving device that can reduce residual material. Background Technology

[0002] Recycled papermaking is a process of regenerating waste paper into pulp through hydraulic disintegration, deinking, and screening. The process uses water as a medium and employs mechanical stirring and chemical additives to separate ink, fillers, and fibers. The pulp is then concentrated and purified to obtain pulp that can be remade, thus achieving resource recycling and reducing the consumption of virgin wood pulp.

[0003] Traditional hydraulic pulpers rely solely on central vortex mixing, causing waste paper to easily float and adhere to the tank wall, forming a shell. This reduces the effective volume and hinders heat transfer, resulting in undissolved residue being discharged with the pulp, leading to a decrease in fiber yield. Furthermore, the shell requires regular manual cleaning, which is time-consuming and can damage the tank wall, affecting continuous production. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a paper remelting device that can reduce residual material.

[0005] This utility model is achieved using the following technical solution: a paper remelting device that can reduce residual material, comprising an overall shell, an inner liner fixedly installed inside the overall shell, a heating mesh provided on the surface of the inner liner, a cover installed on the top of the overall shell, a motor fixedly installed on the top of the cover by bolts, a rotating rod fixedly connected to the output end of the motor, a plurality of circumferentially arrayed stirring blades fixedly connected to the surface of the rotating rod, a connecting rod fixedly connected to the surface of the rotating rod, a mounting plate fixedly connected to the end of the connecting rod away from the rotating rod, a mounting platform slidably connected inside the mounting plate through a buffer, a scraper fixedly connected to the end of the mounting platform away from the mounting plate, and a feed hopper fixedly installed on the top of the cover.

[0006] The above technical solution utilizes a motor-driven rotating rod to simultaneously rotate the stirring blades and the scraper. The stirring blades ensure uniform mixing of paper and liquid, while the scraper peels off the material adhering to the inner wall in real time. The two work together to complete enhanced dissolution and self-cleaning in the same process, reducing residual material.

[0007] As a further improvement to the above solution, the heating mesh is located between the overall outer shell and the inner liner, and the heating mesh is electrically connected to an external power source.

[0008] The above technical solution involves sandwiching a heating mesh between the outer shell and the inner liner, with the heating area covering the entire outer wall of the inner liner. Heat is evenly conducted to the dissolving liquid through the wall surface, avoiding local overheating, improving energy utilization, and shortening the dissolving cycle.

[0009] As a further improvement to the above solution, the number of connecting rods is set to four, and the four connecting rods are arranged in pairs in a centrally symmetrical manner on the front of the rotating rod.

[0010] Through the above technical solution, the four connecting rods are arranged symmetrically in pairs, so that the scraper assembly forms a double-point support in the circumferential direction. During operation, the radial forces cancel each other out, reducing the bending moment of the rotating rod and ensuring that the contact pressure between the scraper and the wall surface is uniform and stable.

[0011] As a further improvement to the above solution, the end of the scraper away from the mounting platform contacts the inner wall of the inner liner, and the output end of the feed hopper penetrates the bottom of the cover.

[0012] With the above technical solution, the scraper end is directly attached to the inner wall of the inner liner, and the feed hopper outlet extends into the inner liner, ensuring that the newly added recycled paper immediately enters the mixing zone and is synchronously acted by the scraper, reducing the probability of paper clumps floating or sticking to the wall.

[0013] As a further improvement to the above solution, the buffer includes a sliding column, the surface of which is fitted with a spring, and a limit plate is fixedly connected to the end of the sliding column away from the mounting platform.

[0014] Through the above technical solution, the buffer component composed of the sliding column and the spring allows the scraper to retract axially when it encounters firmly stuck material, forming a flexible contact, avoiding rigid collisions, and protecting the scraper blade and inner liner surface from being scratched.

[0015] As a further improvement to the above solution, the sliding column is slidably connected to the inside of the mounting plate, and the left and right ends of the spring are in contact with the end of the mounting plate that is close to the inner wall of the mounting platform.

[0016] With the above technical solution, the sliding column is slidably installed inside the mounting plate, and the two ends of the spring abut against the inner wall of the mounting plate and the mounting platform, respectively. The retraction stroke is precisely limited by the limiting plate to ensure reliable reset of the buffer action and maintain continuous wall scraping capability.

[0017] As a further improvement to the above solution, a control panel is installed on the surface of the overall shell, a support leg is fixedly connected to the bottom of the overall shell, and a valve is installed on the bottom of the overall shell.

[0018] Through the above technical solution, the control panel centrally controls the heating grid and motor, the support legs are arranged in a three-point circumferential pattern to provide stable support, and the bottom valve is directly connected to the inner tank, allowing for rapid discharge after dissolution.

[0019] As a further improvement to the above solution, the heating mesh and the motor are both connected to the control panel signal. The number of support legs is set to three, and the three support legs are arranged in a circumferential array at the bottom of the overall shell. The output end of the valve is located inside the inner liner.

[0020] Compared with the prior art, the beneficial effects of this utility model are as follows: This invention utilizes an elastic wall-scraping mechanism composed of a scraper, mounting platform, sliding column, and spring. As the rotating rod rotates, the scraper remains in contact with the inner wall and automatically retracts with resistance, achieving continuous online peeling of wall-adhering residue. This significantly reduces the amount of residue and improves fiber recovery rate.

[0021] This invention achieves the effect of shortening the wet dissolution time of paper sheets and reducing undissolved residue caused by insufficient temperature by setting a heating mesh between the overall outer shell and the inner liner, and adjusting the temperature of the inner liner in a closed loop through the control panel. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the overall cross-sectional internal structure of this utility model; Figure 3 This is a schematic diagram of the overall connection structure of the rotating rod of this utility model; Figure 4 This is a schematic diagram of the overall connection structure of the buffer component of this utility model.

[0023] Explanation of key symbols: 1. Outer shell; 2. Inner liner; 3. Heating mesh; 4. Cover; 5. Motor; 6. Rotating rod; 7. Stirring blade; 8. Connecting rod; 9. Mounting plate; 10. Mounting platform; 11. Scraper; 12. Sliding column; 13. Spring; 14. Limiting plate; 15. Control panel; 16. Support leg; 17. Valve; 18. Feed hopper. Detailed Implementation

[0024] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0025] Example: Please combine Figure 1-4This embodiment of a paper remelting device that reduces residual material includes an overall outer shell 1, an inner liner 2 fixedly installed inside the overall outer shell 1, a heating mesh 3 on the surface of the inner liner 2, a cover 4 installed on the top of the overall outer shell 1, a motor 5 fixedly installed on the top of the cover 4 by bolts, a rotating rod 6 fixedly connected to the output end of the motor 5, a plurality of circumferentially arrayed stirring blades 7 fixedly connected to the surface of the rotating rod 6, a connecting rod 8 fixedly connected to the surface of the rotating rod 6, a mounting plate 9 fixedly connected to the end of the connecting rod 8 away from the rotating rod 6, a mounting platform 10 slidably connected inside the mounting plate 9 through a buffer, a scraper 11 fixedly connected to the end of the mounting platform 10 away from the mounting plate 9, and a feed hopper 18 fixedly installed on the top of the cover 4.

[0026] When in use, start motor 5. The output end of motor 5 drives the rotating rod 6 to rotate. The rotation of the rotating rod 6 drives the stirring blade 7 to rotate, so that the mixed liquid inside the inner liner 2 is mixed and stirred, making the paper re-making and the dissolving liquid more evenly mixed and reducing the residue. At the same time, when the rotating rod 6 rotates, it drives the scraper 11 connected to it to rotate, so that the scraping surface of the scraper 11 contacts the inner wall of the inner liner 2, scraping off the residue adhering to the inner wall of the inner liner 2 and preventing the residue from remaining on the inner wall of the inner liner 2.

[0027] The heating mesh 3 is located between the outer shell 1 and the inner liner 2. The heating mesh 3 is electrically connected to an external power source. The heating mesh 3 is sandwiched between the outer shell 1 and the inner liner 2, and the heating area covers the entire outer wall of the inner liner 2. The heat is evenly conducted to the dissolving liquid through the wall surface.

[0028] There are four connecting rods 8. The four connecting rods 8 are arranged in pairs and are symmetrically distributed around the front of the rotating rod 6. The four connecting rods 8 are arranged symmetrically in pairs so that the scraper 11 assembly forms a double-point support in the circumferential direction. During operation, the radial forces cancel each other out, reducing the bending moment of the rotating rod 6 and ensuring that the contact pressure between the scraper 11 and the wall surface is uniform and stable.

[0029] The end of the scraper 11 away from the mounting platform 10 is in contact with the inner wall of the inner liner 2. The output end of the feed hopper 18 passes through the bottom of the cover 4. The end of the scraper 11 is directly attached to the inner wall of the inner liner 2. The outlet of the feed hopper 18 extends into the inner liner 2, ensuring that the newly added recycled paper immediately enters the mixing zone and is synchronously acted by the scraper 11, reducing the probability of paper clumps floating or sticking to the wall.

[0030] The buffer includes a sliding column 12, with a spring 13 sleeved on the surface of the sliding column 12. A limit plate 14 is fixedly connected to the end of the sliding column 12 away from the mounting platform 10. The buffer composed of the sliding column 12 and the spring 13 allows the scraper 11 to retract axially when it encounters firmly stuck material, forming a flexible contact, avoiding rigid collisions, and protecting the scraper 11 blade and the inner liner 2 from being scratched.

[0031] The sliding column 12 is slidably connected to the inside of the mounting plate 9, and the left and right ends of the spring 13 are in contact with the end of the mounting plate 9 that is close to the inner wall of the mounting platform 10.

[0032] A control panel 15 is mounted on the surface of the overall housing 1, a support leg 16 is fixedly connected to the bottom of the overall housing 1, and a valve 17 is mounted on the bottom of the overall housing 1.

[0033] Heating mesh 3 and motor 5 are both connected to control panel 15. There are three support legs 16, which are arranged in a circular array at the bottom of the overall shell 1. The output end of valve 17 is located inside inner liner 2.

[0034] The implementation principle of the paper remelting device that reduces residual material in this application embodiment is as follows: When dissolving the remelted paper, the inner liner 2 is first filled with dissolving liquid, and the remelted paper is fed into the inner liner 2 through the feed hopper 18. The motor 5 is started, and the output end of the motor 5 drives the rotating rod 6 to rotate. The rotation of the rotating rod 6 drives the stirring blade 7 to rotate, so that the mixed liquid inside the inner liner 2 is mixed and stirred, making the remelted paper and the dissolving liquid more evenly mixed, reducing the residue. At the same time, when the rotating rod 6 rotates, it drives the scraper 11 connected to it to rotate, so that the scraping surface of the scraper 11 contacts the inner wall of the inner liner 2, scraping off the residue adhering to the inner wall of the inner liner 2, and preventing the residue from remaining on the inner wall of the inner liner 2.

[0035] During the dissolution of recycled paper, the inner liner 2 is heated by the heating mesh 3 to adjust the internal temperature of the inner liner 2, so that the dissolution of paper can be carried out at a suitable temperature.

[0036] When the scraper 11 comes into contact with the inner wall of the inner liner 2, when it encounters materials that are firmly adhered, the scraper 11 drives the mounting platform 10 to squeeze the spring 13, so that the sliding column 12 slides inside the mounting plate 9, so as to avoid the scraper 11 getting stuck during the scraping process on the inner wall of the inner liner 2, which would cause damage to the scraping surface of the scraper 11 and the inner wall of the inner liner 2.

[0037] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. A reclaimed paper dissolving device that reduces residual material, characterized in that, The device includes an overall outer shell (1), an inner liner (2) fixedly installed inside the overall outer shell (1), a heating mesh (3) provided on the surface of the inner liner (2), a cover (4) installed on the top of the overall outer shell (1), a motor (5) fixedly installed on the top of the cover (4) by bolts, a rotating rod (6) fixedly connected to the output end of the motor (5), a number of circumferentially arrayed stirring blades (7) fixedly connected to the surface of the rotating rod (6), a connecting rod (8) fixedly connected to the surface of the rotating rod (6), a mounting plate (9) fixedly connected to the end of the connecting rod (8) away from the rotating rod (6), a mounting platform (10) slidably connected to the inside of the mounting plate (9) through a buffer, a scraper (11) fixedly connected to the end of the mounting platform (10) away from the mounting plate (9), and a feed hopper (18) fixedly installed on the top of the cover (4).

2. The paper remelting device for reducing residual material as described in claim 1, characterized in that: The heating mesh (3) is located between the overall outer shell (1) and the inner liner (2), and the heating mesh (3) is electrically connected to an external power source.

3. The paper remelting device for reducing residual material as described in claim 1, characterized in that: The number of connecting rods (8) is set to four, and the four connecting rods (8) are arranged in pairs in a centrally symmetrical manner on the front of the rotating rod (6).

4. The paper remelting device for reducing residual material as described in claim 1, characterized in that: The scraper (11) is in contact with the inner wall of the inner liner (2) at the end away from the mounting platform (10), and the output end of the feed hopper (18) passes through the bottom of the cover (4).

5. The paper remelting device for reducing residual material as described in claim 1, characterized in that: The buffer includes a slide column (12), on the surface of which a spring (13) is fitted, and a limit plate (14) is fixedly connected to one end of the slide column (12) away from the mounting platform (10).

6. The paper remelting device for reducing residual material as described in claim 5, characterized in that: The sliding column (12) is slidably connected to the inside of the mounting plate (9), and the left and right ends of the spring (13) are in contact with the end of the mounting plate (9) and the inner wall of the mounting platform (10) that are close to each other.

7. The paper remelting device for reducing residual material as described in claim 1, characterized in that: A control panel (15) is installed on the surface of the overall housing (1), a support leg (16) is fixedly connected to the bottom of the overall housing (1), and a valve (17) is installed on the bottom of the overall housing (1).

8. The paper remelting device for reducing residual material as described in claim 7, characterized in that: The heating mesh (3) and the motor (5) are both connected to the control panel (15) via signal. There are three support legs (16), which are arranged in a circular array at the bottom of the overall shell (1). The output end of the valve (17) is located inside the inner liner (2).

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