A papermaking apparatus

Abstract

The utility model relates to papermaking device technical field, and its in order to solve the problem that the existing papermaking device cannot hold and take even paper pulp raw materials, leads to the quality of wet paper blank is not the same, the utility model provides a papermaking device, including installation component, elevating system and screen sieve, still includes slurry tank and mixing component, the inside of mixing component is located the bottom of slurry tank, screen sieve is connected with elevating system through installation frame board, elevating system is hung in the opening top of slurry tank through installation component, the papermaking device provided by the utility model preinjects paper pulp in slurry tank, and starts mixing component, and then makes the paper pulp fiber even suspended in the tank cavity to prevent settlement through mixing component, subsequently, screen sieve is immersed in slurry through elevating system drive, in the filtration forming stage, liquid passes through the screen and is discharged by liquid trap and suction pipe, and paper pulp fiber forms wet paper blank on the screen surface, and wet paper blank formation efficiency is high and quality is even.

Description

Technical Field

[0001] This utility model relates to the field of papermaking equipment technology, and more specifically, to a papermaking device. Background Technology

[0002] Papermaking, also known as paper retrieval or paper filtering, is a core process in papermaking. Its purpose is to evenly interweave pulp fibers dispersed in water into a wet paper web. In existing technologies, screen frames or sieves are typically immersed in a feed tank containing diluted pulp to obtain a wet paper blank. For example, patent CN208649784U discloses papermaking equipment with pulp mixing function. Specifically, it discloses the use of a papermaking screen, which is reciprocated within a pulp tank by a motor and multiple pull rods to collect pulp and form a paper blank. However, due to the presence of fibers in the pulp, the pulp is uneven and prone to sedimentation, which affects the unevenness of the pulp collected by the papermaking screen, thus affecting the quality of the wet paper blank after papermaking.

[0003] Based on the above description, there is an urgent need for a papermaking device that facilitates uniform material intake by the papermaking screen and ensures the quality of the wet paper blank after papermaking. Utility Model Content

[0004] The purpose of this invention is to provide a papermaking device that solves the technical problem that existing papermaking devices cannot hold uniform pulp raw materials, resulting in inconsistent quality of wet paper blanks.

[0005] The embodiments of this utility model are achieved through the following technical solutions: A papermaking apparatus includes an installation component, a lifting component, and a screen, and further includes a pulp trough and a mixing component; the mixing component is disposed at the bottom of the pulp trough; the screen is connected to the lifting component via an installation frame plate; the lifting component is suspended from the top of the opening of the pulp trough via the installation component.

[0006] Preferably, the mixing assembly includes an air pump, a buffer tank, and multiple air distribution branches; the air pump is connected to the buffer tank; the buffer tank is connected to the multiple air distribution branches; and the multiple air distribution branches are spaced apart at the bottom of the slurry tank.

[0007] Preferably, the air distribution branch pipe is provided with multiple air jets at intervals; the air outlet of the air jet is located at one end of the slurry tank near the screen.

[0008] Preferably, the bottom of the mounting frame is provided with a liquid collection hopper; the screen is located at the liquid inlet end of the liquid collection hopper; and the liquid outlet end of the liquid collection hopper is connected to a liquid extraction pipe.

[0009] Preferably, the mounting frame is provided with a mesh plate; the mesh plate is located between the screen and the inlet end of the liquid collecting hopper.

[0010] Preferably, the aperture of the screen is smaller than the aperture of the screen plate.

[0011] Preferably, the inner sidewall of the mounting frame plate is provided with a plurality of L-shaped grooves; the bottom of the screen extends to provide a mounting block into which the plurality of L-shaped grooves are embedded.

[0012] Preferably, the bottom of the slurry tank is provided with a telescopic scraper; the telescopic scraper is provided with multiple mixing rods in the vertical direction; the telescopic scraper passes through the bottom of the multiple air distribution branches; the multiple mixing rods are spaced apart between the multiple air distribution branches.

[0013] The technical solution of this utility model embodiment has at least the following advantages and beneficial effects: This invention involves pre-injecting pulp into a pulp tank, then activating a mixing assembly to uniformly suspend the pulp fibers within the tank and prevent sedimentation. A lifting assembly further drives a screen to immerse itself in the pulp. During the filtration and forming stage, the liquid passes through the screen and is discharged via a collection hopper and a suction pipe. The pulp fibers then form a wet paper blank on the screen surface, resulting in high efficiency and uniform quality in the wet paper blank formation. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a main sectional view of the slurry tank in this utility model; Figure 3 This is a top view of the slurry tank in this utility model; Figure 4 This is a schematic diagram of the installation of the screen, liquid collecting hopper and mounting frame plate in this utility model.

[0015] Icons: 1-Installation component, 2-Lifting component, 3-Screen screen, 4-Slurry tank, 5-Mixing component, 51-Air pump, 52-Buffer tank, 53-Air distribution branch pipe, 6-Installation frame plate, 7-Liquid collection hopper, 8-L-shaped trough block, 9-Installation block, 10-Telescopic scraper, 11-Mixing rod. Detailed Implementation

[0016] The specific implementation method is described below with reference to the accompanying drawings.

[0017] Example 1 Please see Figures 1 to 4 The present invention provides the following technical solution: a paper-making device, which is suitable for paper-making using a screen.

[0018] Specifically, such as Figures 1 to 4As shown, a papermaking device includes an installation component 1, a lifting component 2, and a screen 3, as well as a pulp tank 4 and a mixing component 5; the mixing component 5 is disposed at the bottom of the pulp tank 4; the screen 3 is connected to the lifting component 2 through an installation frame plate 6; the lifting component 2 is suspended at the top of the opening of the pulp tank 4 through the installation component 1.

[0019] In this embodiment, the installation component 1 may specifically include a rigid bracket, a crossbeam, and adjusting bolts. The bracket is fixed to the ground or platform, the crossbeam spans the opening of the pulp tank 4, and the adjusting bolts allow for fine adjustment of the position and level of the lifting component 2 to ensure that the screen is aligned with the pulp tank 4 and improve operational stability. In addition, the installation component may be equipped with shock-absorbing pads to reduce the impact of vibration on the papermaking process.

[0020] In this embodiment, the lifting assembly adopts an electric push rod or a hydraulic system, and can also be further equipped with encoders and PLC controllers commonly used in the art to further precisely control the lifting speed, immersion depth and residence time of the screen.

[0021] Specifically, such as Figure 2 and Figure 3 As shown, the mixing assembly 5 includes an air pump 51, a buffer tank 52, and multiple air distribution branches 53; the air pump 51 is connected to the buffer tank 52; the buffer tank 52 is connected to the multiple air distribution branches 53; the multiple air distribution branches 53 are spaced apart at the bottom of the slurry tank 4; the air distribution branches 53 are spaced apart with multiple air jets; the air outlet of the air jet is located at one end of the slurry tank 4 near the screen 3.

[0022] In this embodiment, the air pump 51 is a variable frequency centrifugal pump, which can adjust the airflow pressure and flow rate; the buffer tank 52 has a built-in pressure gauge and safety valve to ensure stable air pressure; the air distribution branch pipes 53 are evenly distributed at the bottom of the slurry tank 4. The jet nozzle is an adjustable nozzle, oriented towards the area of ​​the screen 3, to generate bubbles to homogenize the slurry.

[0023] Specifically, such as Figure 1 and Figure 4 As shown, the bottom of the mounting frame plate 6 is provided with a liquid collection hopper 7; the screen 3 is provided at the liquid inlet end of the liquid collection hopper 7; and the liquid outlet end of the liquid collection hopper 7 is connected to a liquid extraction pipe.

[0024] In this embodiment, the liquid collecting hopper 7 has a conical structure and is lined with a smooth material to reduce liquid residue; the liquid extraction pipe is connected to a centrifugal pump to improve drainage efficiency and promote the formation of wet paper blanks.

[0025] Specifically, such as Figure 4 As shown, a mesh plate is provided inside the mounting frame plate 6; the mesh plate is located between the screen 3 and the inlet end of the liquid collecting hopper 7. The aperture of the screen 3 is smaller than the aperture of the mesh plate.

[0026] In this embodiment, the mesh plate is a supporting mesh made of metal or plastic with a large aperture, mainly serving to support the screen and pre-filter.

[0027] Specifically, such as Figure 4 As shown, the inner wall of the mounting frame plate 6 is provided with multiple L-shaped groove blocks 8; the bottom of the screen 3 extends with mounting blocks 9 embedded in the multiple L-shaped groove blocks 8. The bottom of the slurry tank 4 is provided with a telescopic scraper 10; the telescopic scraper 10 is provided with multiple mixing rods 11 in the vertical direction; the telescopic scraper 10 passes through the bottom of multiple air distribution branch pipes 53; the multiple mixing rods 11 are spaced apart between the multiple air distribution branch pipes 53.

[0028] In this embodiment, the scraper is driven by a pneumatic or electric telescopic cylinder and can periodically extend to scrape off the sediment at the bottom of the tank; the mixing rod is spiral or has a finned structure to enhance the mixing effect and promote pulp mixing.

[0029] The workflow of this embodiment is as follows: Pulp is injected into the pulp tank 4, and the mixing component 5 is started. Gas is released through the air distribution branch pipe 53, and combined with the action of the mixing rod 11 and the telescopic scraper 10, the pulp fibers are evenly suspended to prevent sedimentation. Subsequently, the lifting component 2 drives the screen 3 to immerse in the pulp. During the filtration and forming stage, the liquid passes through the screen and is discharged through the liquid collection hopper 7 and the liquid extraction pipe. The pulp fibers form a wet paper blank on the surface of the screen 3. At the same time, the mixing component 5 continues to work to prevent the screen 3 from clogging. Finally, during the discharge and cleaning stage, the lifting component 2 lifts the screen 3 with the wet paper sheet for transfer and blank removal.

Claims

1. A paper-making device, comprising an installation assembly (1), a lifting assembly (2), and a screen (3), characterized in that: It also includes a slurry tank (4) and a mixing component (5); the mixing component (5) is located at the bottom of the slurry tank (4); the screen (3) is connected to the lifting component (2) through the mounting frame plate (6); the lifting component (2) is suspended at the top of the opening of the slurry tank (4) through the mounting component (1).

2. The paper-making apparatus according to claim 1, characterized in that... The mixing assembly (5) includes an air pump (51), a buffer tank (52), and multiple air distribution branches (53); the air pump (51) is connected to the buffer tank (52); the buffer tank (52) is connected to the multiple air distribution branches (53); the multiple air distribution branches (53) are spaced apart at the bottom of the slurry tank (4).

3. The paper-making apparatus according to claim 2, characterized in that... The air distribution branch pipe (53) is provided with multiple air jets at intervals; the air outlet of the air jet is located at one end of the slurry tank (4) near the screen (3).

4. The paper-making apparatus according to claim 2, characterized in that... The bottom of the mounting frame plate (6) is provided with a liquid collection hopper (7); the screen (3) is located at the liquid inlet end of the liquid collection hopper (7); the liquid outlet end of the liquid collection hopper (7) is connected to a liquid extraction pipe.

5. The paper-making apparatus according to claim 4, characterized in that... The mounting frame (6) is provided with a mesh plate; the mesh plate is located between the mesh screen (3) and the liquid inlet end of the liquid collecting hopper (7).

6. The paper-making apparatus according to claim 5, characterized in that... The aperture of the screen (3) is smaller than the aperture of the screen plate.

7. The paper-making apparatus according to claim 5, characterized in that... The inner sidewall of the mounting frame plate (6) is provided with a plurality of L-shaped groove blocks (8); the bottom of the screen (3) extends to provide mounting blocks (9) into which the plurality of L-shaped groove blocks (8) are embedded.

8. The paper-making apparatus according to claim 2, characterized in that... The bottom of the slurry tank (4) is provided with a telescopic scraper (10); the telescopic scraper (10) is provided with multiple mixing rods (11) in the vertical direction; the telescopic scraper (10) passes through the bottom of multiple air distribution branch pipes (53); the multiple mixing rods (11) are spaced apart between the multiple air distribution branch pipes (53).

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