Paper pulp filter screen for corrugated paper production

Abstract

The utility model relates to the technical field of corrugated paper production, and discloses a paper pulp filter screen for corrugated paper production, which comprises a filter vat, the bottom of the filter vat is fixedly connected with a base, the middle of the base is fixedly connected with a vibration roller, the upper end of the vibration roller is arranged in the filter vat in a penetrating manner, and the lower end of the vibration roller is fixedly connected with the base. Limiting strips are fixedly connected to the left side and the right side of the inner wall of the filtering barrel, a filtering plate is movably arranged at the lower end in the filtering barrel, the left end and the right end of the filtering plate are slidably connected to the outer portions of the lower ends of the limiting strips, and a connecting ring is fixedly connected to the middle of the lower side of the filtering plate. According to the paper pulp filtering device, paper pulp is stirred through the stirring blades, flowing of the paper pulp is accelerated, the paper pulp filtering efficiency is improved, the scraping plate can clean the filtering plate in real time, the blocking problem is avoided, the lantern rings are matched with one another to drive the piston disc to reciprocate up and down, and when the piston disc moves downwards, the pressure in the filtering barrel can be increased; paper pulp is promoted to penetrate through the filter plate and the filter efficiency is improved.

Description

A pulp filter screen for corrugated paper production Technical Field

[0001] This utility model relates to the field of corrugated paper production technology, and in particular to a pulp filter screen for corrugated paper production. Background Technology

[0002] In the corrugated paper production process, the pulp filtration stage is crucial. Corrugated paper, a sheet material made by bonding linerboard and corrugated paper formed by corrugating rollers, is generally divided into single-wall and double-wall corrugated paperboard. It is widely used due to its advantages such as low cost, light weight, simple processing, high strength, excellent printability, and convenient storage and handling.

[0003] In the existing technology, during the pulp filtration process, impurities adhere to the surface of the filter screen, resulting in reduced filtration efficiency. Over time, this can lead to filter screen blockage, severely affecting the pulp filtration operation. Furthermore, due to the characteristics of pulp... Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a pulp filter screen for corrugated paper production that can prevent filter clogging and improve filtration efficiency.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A pulp filter screen for corrugated paper production includes a filter barrel. A base is fixedly connected to the bottom of the filter barrel, and a vibrating roller is fixedly connected to the middle of the base. The upper end of the vibrating roller passes through the interior of the filter barrel. Limiting strips are fixedly connected to both the left and right sides of the inner wall of the filter barrel. A filter plate is movably disposed at the lower end of the filter barrel, and the left and right ends of the filter plate are slidably connected to the lower ends of the limiting strips. A connecting ring is fixedly connected to the lower center of the filter plate, and the inner wall of the connecting ring fits tightly against the upper outer wall of the vibrating roller. A stirring shaft is rotatably connected to the upper center of the filter plate, and scrapers are fixedly connected to both the left and right sides of the lower end of the stirring shaft. The lower side of the scrapers is connected to the filter plate.

[0007] The upper side fits tightly, and stirring blades are fixedly connected to both the front and rear sides of the upper end of the stirring shaft. A pressure component is installed inside the upper end of the filter barrel.

[0008] Furthermore, the pressure assembly includes a top plate disposed on the top of the filter barrel, side plates fixedly connected to both the left and right sides of the top plate, a reciprocating screw rotatably connected to the middle of the top plate, the lower end of the reciprocating screw being fixedly connected to the top of the stirring shaft, a collar sleeved on the outside of the reciprocating screw, a piston disc fixedly connected to the outside of the collar, and the outer wall of the piston disc being tightly attached to the inner wall of the filter barrel.

[0009] Furthermore, both ends of the piston disc are provided with limiting openings for cooperating with the limiting strip.

[0010] Furthermore, a motor is fixedly connected to the upper side of the top plate, and the drive end of the motor is fixedly connected to the top of the collar.

[0011] Furthermore, the filter barrel has slots on both the left and right sides of its top, and the outer end of the side plate is embedded inside the slots.

[0012] Furthermore, a one-way valve is fixedly connected to the upper front end of the piston disc.

[0013] Furthermore, an electric push rod is fixedly connected to the right end of the base, and a telescopic rod is fixedly connected to the left end of the base. The tops of the electric push rod and the telescopic rod are fixedly connected to the lower side of the side plate.

[0014] Furthermore, a feed pipe is fixedly connected to the upper end of the filter barrel, and a discharge port is fixedly connected to the lower front side of the filter barrel.

[0015] This utility model has the following beneficial effects:

[0016] 1. In this utility model, a motor drives the stirring shaft to rotate, which in turn drives the stirring blades and scraper to rotate. The rotating stirring blades stir the pulp, accelerate the flow of the pulp, and improve the efficiency of pulp filtration. The rotating scraper can clean the filter plate in real time, avoiding clogging caused by impurities.

[0017] 2. In this utility model, a motor drives the collar to rotate, and the rotating collar interacts with the sleeve.

[0018] The ring mechanism drives the piston disc to reciprocate up and down. When the piston disc moves downward, it increases the pressure inside the filter barrel, thereby promoting the pulp to pass through the filter plate and improving filtration efficiency. Attached Figure Description

[0019] Figure 1 is an overall schematic diagram of a pulp filter screen for corrugated paper production proposed in this utility model;

[0020] Figure 2 is a schematic diagram of the filter plate of a pulp filter screen for corrugated paper production proposed in this utility model;

[0021] Figure 3 is a schematic diagram of the reciprocating screw of a pulp filter screen for corrugated paper production proposed in this utility model.

[0022] Legend:

[0023] 1. Filter barrel; 2. Base; 3. Vibrating roller; 4. Filter plate; 5. Connecting ring; 6. Top plate; 7. Side plate; 8. Bayonet; 9. Reciprocating screw; 10. Collar; 11. Piston disc; 12. Limiting opening; 13. Limiting strip; 14. One-way valve; 15. Motor; 16. Electric push rod; 17. Telescopic rod; 18. Stirring shaft; 19. Stirring blade; 20. Scraper; 21. Feed pipe; 22. Discharge port. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Referring to Figures 1-3, one embodiment of this utility model provides a pulp filter screen for corrugated paper production, comprising a filter barrel 1, a feed pipe 21 fixedly connected to the upper end of the filter barrel 1, a discharge port 22 fixedly connected to the lower front side of the filter barrel 1, a base 2 fixedly connected to the bottom of the filter barrel 1, a vibrating roller 3 fixedly connected to the middle of the base 2, and the upper end of the vibrating roller 3 passing through the interior of the filter barrel 1.

[0026] Limiting strips 13 are fixedly connected to both the left and right sides of the inner wall of filter barrel 1. A filter plate 4 is movably installed at the lower end of the inner wall of filter barrel 1. The left and right ends of filter plate 4 are slidably connected to the lower ends of the limiting strips 13. A connecting ring 5 is fixedly connected to the lower middle part of filter plate 4. The inner wall of the connecting ring 5 is tightly fitted with the upper outer wall of vibrating roller 3. A stirring shaft 18 is rotatably connected to the upper middle part of filter plate 4. Scrapers 20 are fixedly connected to both the left and right sides of the lower end of stirring shaft 18. The lower side of scraper 20 is tightly fitted with the upper side of filter plate 4. Stirring blades 19 are fixedly connected to both the front and rear sides of the upper end of stirring shaft 18.

[0027] The feed pipe 21 connects to the conveying equipment. The pulp enters the filter tank 1 through the feed pipe 21 and falls onto the filter plate 4. The vibrating roller 3 vibrates at high frequency under the drive of the base 2, causing the filter plate 4 to vibrate. This allows the fine fibers in the pulp to pass through the screen holes and enter the lower layer, while larger impurities, such as coarse fibers and adhesives, are intercepted above the filter plate 4. The pulp that passes through the filter plate 4 is discharged and collected from the outlet 22. The stirring shaft 18 can rotate on the upper side of the filter plate 4, thereby driving the stirring blade 19 and scraper 20 to rotate. The stirring blade 19 stirs the pulp to prevent fiber accumulation, and the scraper 20 rotates with the stirring shaft 18, closely adhering to the surface of the filter plate 4 to scrape off the deposited impurities, preventing screen clogging and maintaining filtration efficiency.

[0028] Referring to Figures 1-3, a top plate 6 is provided on the top of the filter barrel 1. Side plates 7 are fixedly connected to both the left and right sides of the top plate 6. A latch 8 is provided on both the left and right sides of the top of the filter barrel 1. The outer ends of the side plates 7 are embedded in the latch 8. A reciprocating screw 9 is rotatably connected to the middle of the top plate 6. A motor 15 is fixedly connected to the upper side of the top plate 6. The drive end of the motor 15 is fixedly connected to the top of the collar 10. The lower end of the reciprocating screw 9 is fixedly connected to the top of the stirring shaft 18. A collar 10 is sleeved on the outside of the reciprocating screw 9. A piston disc 11 is fixedly connected to the outside of the collar 10. The outer wall of the piston disc 11 is in close contact with the inner wall of the filter barrel 1. Limiting openings 12 for cooperating with limiting strips 13 are provided at both the left and right ends of the piston disc 11. A one-way valve 14 is fixedly connected to the upper front end of the piston disc 11. An electric push rod 16 is fixedly connected to the right end of the base 2. A telescopic rod 17 is fixedly connected to the left end of the device, and the top of the electric push rod 16 and the telescopic rod 17 are fixedly connected to the lower side of the side plate 7.

[0029] Motor 15 drives reciprocating screw 9 to rotate, causing collar 10 and piston disc 11 to reciprocate up and down. When piston disc 11 presses down, it seals the upper space of filter barrel 1, compresses air, increases internal pressure, and forces pulp to pass through filter plate 4 faster, improving filtration efficiency. Sealing rings are set on the upper and lower sides of collar 10, with the inner wall of the sealing ring tightly against the outer wall of reciprocating screw 9 to maintain the sealing of the device. When piston disc 11 rises, one-way valve 14 opens, drawing in external air to prevent negative pressure from affecting filtration continuity. At the same time, reciprocating screw 9 drives stirring shaft 18 to rotate, causing stirring blade 19 to stir the pulp, preventing fiber accumulation, and driving scraper 20 to rotate with stirring shaft 18, scraping off deposited impurities close to the surface of filter plate 4 to prevent screen blockage and maintain filtration efficiency. When it is necessary to clean filter plate 4 or replace screen, electric push rod 16 pushes side plate 7 and top plate 6 to rise as a whole, causing piston disc 11 and filter plate 4 to move together. The filter canister 1 is detached for easy manual cleaning or replacement. The telescopic rod 17 assists the electric push rod 16 in balancing the lifting process and preventing lateral deviation. The limit bar 13 restricts the rotation of the piston disc 11 and the filter plate 4, ensuring that they only move vertically and maintaining equipment stability.

[0030] Working Principle: Raw pulp is injected into the filter tank 1 through the feed pipe 21. The vibrating roller 3 drives the filter plate 4 to vibrate, filtering the pulp. Simultaneously, the motor 15 is started, driving the reciprocating screw 9 to rotate. The rotating reciprocating screw 9, in conjunction with the collar 10, drives the piston disc 11 to move up and down. During the downward movement of the piston disc 11, the pressure inside the filter tank 1 increases, thus promoting the pulp to pass through the filter plate 4. When moving upward, air is drawn in through the one-way valve 14. When the one-way valve 14 is closed, pulp can be drawn in through the feed pipe 21. The limit bar 13 restricts the piston disc 11 and filter plate 4 from rotating. The rotating reciprocating screw 9 drives the stirring shaft 18 to rotate, which in turn drives the stirring blade 19 to rotate, stirring the pulp. The stirring shaft 18 drives the scraper 20 to rotate, scraping away impurities on the upper side of the filter plate 4. The electric push rod 16 can drive the piston disc 11 and filter plate 4. The overall upward movement makes it easy to clean.

[0031] Finally, it should be noted that the above description is only a preferred embodiment of this utility model and is not intended to be construed as a complete invention.

[0032] To limit the scope of this utility model, although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A pulp filter screen for corrugated paper production, characterized in that, The filter includes a filter barrel (1), a base (2) fixedly connected to the bottom of the filter barrel (1), a vibrating roller (3) fixedly connected to the middle of the base (2), the upper end of the vibrating roller (3) passing through the inside of the filter barrel (1), and limit strips (13) fixedly connected to the left and right sides of the inner wall of the filter barrel (1). A filter plate (4) is movably arranged at the lower end of the inside of the filter barrel (1), and the left and right ends of the filter plate (4) are slidably connected to the lower end of the limit strips (13). The lower side of the filter plate (4) A connecting ring (5) is fixedly connected in the middle. The inner wall of the connecting ring (5) is tightly fitted with the upper outer wall of the vibrating roller (3). A stirring shaft (18) is rotatably connected to the upper middle part of the filter plate (4). Scrapers (20) are fixedly connected to the lower left and right sides of the stirring shaft (18). The lower side of the scraper (20) is tightly fitted with the upper side of the filter plate (4). Stirring blades (19) are fixedly connected to the front and rear sides of the upper end of the stirring shaft (18). A pressure component is provided inside the upper end of the filter barrel (1).

2. The pulp filter screen for corrugated paper production according to claim 1, characterized in that: The pressure assembly includes a top plate (6) set on the top of the filter barrel (1), and side plates (7) are fixedly connected to both the left and right sides of the top plate (6). A reciprocating screw (9) is rotatably connected to the middle of the top plate (6). The lower end of the reciprocating screw (9) is fixedly connected to the top of the stirring shaft (18). A collar (10) is sleeved on the outside of the reciprocating screw (9). A piston disc (11) is fixedly connected to the outside of the collar (10). The outer wall of the piston disc (11) is in close contact with the inner wall of the filter barrel (1).

3. The pulp filter screen for corrugated paper production according to claim 2, characterized in that: Both ends of the piston disc (11) are provided with limiting openings (12) for cooperating with the limiting strip (13).

4. The pulp filter screen for corrugated paper production according to claim 2, characterized in that: A motor (15) is fixedly connected to the upper side of the top plate (6), and the driving end of the motor (15) is fixedly connected to the top of the collar (10).

5. A pulp filter screen for corrugated paper production according to claim 2, characterized in that: The filter barrel (1) has slots (8) on both the left and right sides of the top, and the outer end of the side plate (7) is embedded in the slot (8).

6. The pulp filter screen for corrugated paper production according to claim 2, characterized in that: A one-way valve (14) is fixedly connected to the upper front end of the piston disc (11).

7. The pulp filter screen for corrugated paper production according to claim 1, characterized in that: An electric push rod (16) is fixedly connected to the right end of the base (2), and a telescopic rod (17) is fixedly connected to the left end of the base (2). The tops of the electric push rod (16) and the telescopic rod (17) are fixedly connected to the lower side of the side plate (7).

8. The pulp filter screen for corrugated paper production according to claim 1, characterized in that: The upper end of the filter barrel (1) is fixedly connected to the feed pipe (21), and the lower end of the filter barrel (1) is fixedly connected to the discharge port (22).

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