Regenerated pulp pre-scattering device in papermaking equipment

Abstract

The utility model relates to a regenerated pulp pre-scattering device in papermaking equipment, which relates to the technical field of papermaking equipment and comprises a cutting mechanism, the cutting mechanism comprises a supporting seat, a hydraulic cylinder and a retaining plate are mounted on the supporting seat, the output end of the hydraulic cylinder is connected with a telescopic rod, the telescopic rod penetrates through the retaining plate to be connected with a cutter, and a baffle is mounted on the opposite side of the retaining plate. The cutter is arranged between the retaining plate and the baffle, the conveying mechanism is arranged below the cutter, the cutter comprises a matrix cutting structure, and the matrix cutting structure is used for efficiently disintegrating regenerated pulp, so that damage to a rotor impeller of the pulper caused by impact force generated in the falling process of the regenerated pulp can be effectively avoided; the operation efficiency of the pulper is improved while the equipment maintenance frequency is reduced; and a flushing mechanism is installed on the baffle and used for wetting the cut regenerated pulp, waste caused by splashing of the regenerated pulp is prevented, and a foundation is laid for follow-up procedures such as screening, purifying and bleaching.

Description

Technical Field

[0001] This utility model relates to the technical field of papermaking equipment, and in particular to a pre-dispersing device for recycled pulp in papermaking equipment. Background Technology

[0002] In the papermaking process, the pulper, as the first step in the pulping process, directly affects fiber utilization, pulp quality, and production costs. Its efficient pulping and impurity separation capabilities lay the foundation for subsequent screening, purification, bleaching, and other processes, making it a core piece of equipment for waste paper recycling and virgin pulp preparation.

[0003] During the fall of recycled pulp, its own weight generates an impact force that can damage the rotor impeller, thus requiring frequent equipment maintenance. Therefore, a pre-dispersing device needs to be added before the recycled pulp enters the pulper to reduce the frequency of equipment maintenance while improving the operating efficiency and service life of the pulper. Utility Model Content

[0004] In order to improve the problems in the production of recycled pulp in the above-mentioned background art, this utility model provides a recycled pulp pre-dispersing device in papermaking equipment.

[0005] The technical solution of the recycled pulp pre-dispersing device in papermaking equipment provided by this utility model is as follows:

[0006] A pre-dispersing device for recycled pulp in a papermaking machine includes a conveying mechanism and a cutting mechanism. The cutting mechanism includes a support base, on which a hydraulic cylinder and a stop plate are mounted. The output end of the hydraulic cylinder is connected to a telescopic rod, which passes through the stop plate and connects to a cutter. A baffle is mounted on the opposite side of the stop plate. The cutter is positioned between the stop plate and the baffle, and the conveying mechanism is positioned below the cutter. A rinsing mechanism is mounted on the baffle.

[0007] Preferably, the hydraulic cylinders are arranged in a matrix of four units, with the hydraulic cylinders connected and supported in the horizontal direction by connecting rods, and the hydraulic cylinders connected and supported in the vertical direction by support rods.

[0008] Preferably, the cutting tool includes a matrix cutting structure.

[0009] Preferably, the matrix cutting structure is formed by multiple blades that are perpendicularly intersecting and fixed at the intersection of the blades by bent clamps.

[0010] Preferably, the conveying mechanism includes a conveyor belt, a drain outlet is provided on the conveyor belt, and a water receiving trough is provided at the bottom of the conveyor belt.

[0011] Preferably, the rinsing mechanism includes a nozzle mounted on a baffle, the nozzle being connected to a water supply device via a water pipe.

[0012] Preferably, the conveying mechanism is driven by a motor, and both the motor and the hydraulic cylinder are communicatively connected to a controller located on one side of the conveying mechanism.

[0013] In summary, this utility model has the following beneficial technical effects:

[0014] 1. This utility model provides a pre-dispersing device for recycled pulp in papermaking equipment. It uses a matrix cutting structure to efficiently dissipate recycled pulp, which can effectively avoid damage to the rotor impeller of the pulper caused by the impact force generated during the fall of recycled pulp, reduce the frequency of equipment maintenance and improve the operating efficiency of the pulper.

[0015] 2. This utility model is equipped with multiple hydraulic cylinders to drive the cutter, resulting in a large cutting area. The cutter uses a matrix cutting structure to cut and compress the recycled pulp into small pieces. A rinsing mechanism is used to wet the cut recycled pulp to prevent splashing and waste, laying the foundation for subsequent screening, purification, bleaching and other processes. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the installation position of a recycled pulp pre-dispersing device in a papermaking equipment according to an embodiment of this utility model;

[0017] Figure 2 This is a schematic diagram of the structure of a recycled pulp pre-dispersing device in a papermaking equipment according to an embodiment of this utility model;

[0018] Figure 3 This is a side view of the conveying mechanism and the cutting mechanism according to an embodiment of the present utility model;

[0019] Figure 4 This is a top view of the conveying mechanism and the cutting mechanism according to an embodiment of the present utility model;

[0020] Figure 5 This is a schematic diagram of the matrix cutting structure according to an embodiment of the present invention.

[0021] Explanation of reference numerals in the attached drawings: 1. Conveying mechanism; 2. Cutting mechanism; 3. Support base; 4. Hydraulic cylinder; 5. Anti-reverse plate; 6. Telescopic rod; 7. Cutting tool; 8. Baffle; 9. Flushing mechanism; 10. Connecting rod; 11. Support rod; 12. Controller; 13. Matrix cutting structure; 14. Blade; 15. Clamping plate; 16. Conveyor belt; 17. Drain outlet; 18. Water receiving tank; 19. Nozzle; 20. Motor. Detailed Implementation

[0022] The following combination Figures 1-5 The present invention will be described in further detail below.

[0023] This utility model discloses a pre-dispersing device for recycled pulp in papermaking equipment.

[0024] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 A pre-dispersing device for recycled pulp in a papermaking machine includes a conveying mechanism 1 and a cutting mechanism 2. The cutting mechanism 2 includes a support base 3, on which a hydraulic cylinder 4 and a stop plate 5 are installed. The output end of the hydraulic cylinder 4 is connected to a telescopic rod 6. The telescopic rod 6 passes through the stop plate 5 and connects to a cutter 7. A baffle 8 is installed on the opposite side of the stop plate 5. The baffle 8 is pre-embedded and reinforced. The cutter 7 is located between the stop plate 5 and the baffle 8, and the conveying mechanism 1 is located below the cutter 7. Both the baffle 8 and the stop plate 5 are made of color steel hard plate, which takes into account both waterproofing and mechanical strength. A rinsing mechanism 9 is installed on the baffle 8.

[0025] Reference Figure 2 , Figure 3 , Figure 4 There are four hydraulic cylinders 4 arranged in a matrix. The hydraulic cylinders 4 are connected and supported in the horizontal direction by connecting rod 10, and in the vertical direction by support rod 11. The hydraulic cylinders 4 provide sufficient power for the cutter 7 to cut the recycled pulp, while also providing stable support.

[0026] Reference Figure 3 , Figure 4 , Figure 5 The cutting tool 7 includes a matrix cutting structure 13, which is formed by multiple blades 14 perpendicularly intersecting. The blades 14 are fixed at the intersection by a bent clamping plate 15 to prevent the blades 14 from being misaligned. The clamping plate 15 is a bent hard thin plate. The inner side of the clamping plate 15 is attached to the perpendicular intersection of the two sets of blades 14, which stabilizes the blades 14 and reduces obstruction to the cutting process.

[0027] Reference Figure 1 , Figure 2 The conveying mechanism 1 includes a conveyor belt 16, a drain outlet 17 is provided on the conveyor belt 16 to facilitate the smooth flow of rinsing water, and a water receiving trough 18 is provided at the bottom of the conveyor belt 16 to realize the reuse of water.

[0028] Reference Figure 1 , Figure 2 The conveyor belt 16 includes a horizontal conveyor belt section and an inclined conveyor belt section. The cutting mechanism 2 is located above the horizontal conveyor belt section. The front end of the horizontal conveyor belt section is connected to the inclined conveyor belt section. The front end of the inclined conveyor belt section is located above the recycled pulp dispersing device.

[0029] Reference Figure 2 , Figure 4The rinsing mechanism 9 includes a nozzle 19 mounted on a baffle 8. The nozzle 19 is connected to a water supply device via a water pipe. The water supply device uses a water pump, valves, and a water tank to wet the cut recycled pulp with rinsing water, preventing the recycled pulp from splashing and causing waste.

[0030] Reference Figure 1 , Figure 3 The conveying mechanism 1 is driven by the motor 20. Both the motor 20 and the hydraulic cylinder 4 are connected to the controller 12 located on one side of the conveying mechanism 1.

[0031] The implementation principle of the pre-dispersing device for recycled pulp in a papermaking equipment according to this utility model embodiment is as follows: The conveying mechanism 1 and the cutting mechanism 2 are assembled together and installed in the working position. The recycled pulp is placed on the conveyor belt 16 and conveyed between the anti-reverse plate 5 and the baffle 8. The hydraulic cylinder 4 pressurizes and extends the cutter 7. The cutter 7 cuts and disperses the recycled pulp. Then, the hydraulic cylinder 4 is controlled to retract to complete the retraction of the cutter. The rinsing mechanism 9 is opened to rinse and wet the cut recycled pulp. The unused rinsing water flows smoothly down the drain outlet 17 and is collected in the water receiving tank 18 to realize the reuse of water. Finally, the cut and wetted recycled pulp is conveyed to the pulper through the conveyor belt 16. The rotor impeller in the pulper rotates to promote the dissolution of the recycled pulp.

[0032] The above are all preferred embodiments of this utility model, and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape and principle of this utility model should be covered within the scope of protection of this utility model.

Claims

1. A pre-dispersing device for recycled pulp in papermaking equipment, characterized in that: The device includes a conveying mechanism (1) and a cutting mechanism (2). The cutting mechanism (2) includes a support base (3). A hydraulic cylinder (4) and a stop plate (5) are installed on the support base (3). The output end of the hydraulic cylinder (4) is connected to a telescopic rod (6). The telescopic rod (6) passes through the stop plate (5) and connects to a cutter (7). A baffle (8) is installed on the opposite side of the stop plate (5). The cutter (7) is located between the stop plate (5) and the baffle (8), and the conveying mechanism (1) is located below the cutter (7). A rinsing mechanism (9) is installed on the baffle (8).

2. The recycled pulp pre-dispersing device in a papermaking equipment according to claim 1, characterized in that: The hydraulic cylinders (4) are arranged in a matrix of four units. The hydraulic cylinders (4) are connected and supported in the horizontal direction by connecting rods (10), and in the vertical direction by support rods (11).

3. The recycled pulp pre-dispersing device in a papermaking equipment according to claim 1, characterized in that: The cutting tool (7) includes a matrix cutting structure (13).

4. The recycled pulp pre-dispersing device in a papermaking equipment according to claim 3, characterized in that: The matrix cutting structure (13) is formed by multiple blades (14) intersecting vertically and is fixed at the intersection of the blades (14) by a bent clamp (15).

5. The recycled pulp pre-dispersing device in a papermaking equipment according to claim 1, characterized in that: The conveying mechanism (1) includes a conveyor belt (16), a drain outlet (17) is provided on the conveyor belt (16), and a water receiving trough (18) is provided at the bottom of the conveyor belt (16).

6. The recycled pulp pre-dispersing device in a papermaking equipment according to claim 1, characterized in that: The flushing mechanism (9) includes a nozzle (19) mounted on a baffle (8), which is connected to a water supply device via a water pipe.

7. The recycled pulp pre-dispersing device in a papermaking equipment according to claim 1, characterized in that: The conveying mechanism (1) is driven by a motor (20), and both the motor (20) and the hydraulic cylinder (4) are connected in communication with a controller (12) located on one side of the conveying mechanism (1).

Images