Paper pulp dewatering equipment in papermaking process

Abstract

The utility model belongs to the technical field of papermaking equipment, and particularly relates to paper pulp dewatering equipment in a papermaking process, which comprises a waste liquid box and a top plate, a material bundling barrel is fixedly mounted in the waste liquid box, an air cylinder is fixedly mounted in the middle of the top of the top plate, and a telescopic rod is arranged at the bottom of the air cylinder. The bottom of the telescopic rod is in threaded connection with a limiting seat, a driving motor is fixedly installed in the limiting seat, the bottom of the driving motor is in threaded connection with a connecting pipe through a rotating shaft, and an assembling disc is fixedly installed at the bottom of the connecting pipe. Through the structural design of the material bundling barrel, the air cylinder, the telescopic rod, the driving motor, the assembling disc and the pressing roller and through mutual cooperation of the structures, the continuous squeezing and dewatering function is achieved, and therefore paper pulp can be evenly distributed when being stressed through circulating work of the pressing roller, the uniformity of the dewatering effect is guaranteed, and then the dewatering effect is improved; the problem of low dehydration efficiency of single-time squeezing is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of papermaking equipment, in particular to a pulp dewatering device in a papermaking process. Background Art

[0002] Papermaking is one of the four great inventions of China. Paper is the crystallization of the long-term experience and wisdom of the ancient Chinese working people. It is an outstanding invention in the history of human civilization. With the development of science and technology, large-scale papermaking equipment has replaced traditional manual manufacturing.

[0003] For example, an environmentally friendly corrugated paper pulp filtering and dewatering device with a publication (announcement) number of CN212152931U includes a support frame, a body, and a sewage collection box. The body is disposed in the middle portion above the support frame, a feed port is disposed on one side of the body, and a first motor is disposed on one side of the body. The beneficial effect is that, by providing a forward-rotating roller, a forward-rotating motor, a reverse-rotating roller, and a reverse-rotating motor, the two rollers can rotate relative to each other, thereby dewatering the paper pulp, ensuring that the dehydration degree of the paper pulp meets the use standard and ensures the production quality of the enterprise. By providing a second motor, a second conveyor belt, and a drying box, the filtered and dehydrated paper pulp can be dried first, preventing the filtered and dehydrated paper pulp from absorbing moisture from the air and increasing its water content, thereby improving product quality.

[0004] However, based on the working principle proposed in the above patent, the applicant believes that the above device only relies on double rollers to squeeze the pulp once. Since the pressure applied by the double rollers to the pulp may not be completely and evenly distributed to every part of the pulp, part of the pulp is not completely dehydrated, thereby affecting the overall dehydration efficiency and further affecting the subsequent papermaking process. Utility Model Content

[0005] The technical problem to be solved by the utility model is that the dehydration efficiency of a single squeeze is low.

[0006] The technical solution adopted by the utility model to solve its technical problems is: a pulp dewatering device in a papermaking process includes a waste liquid tank and a top plate, a material bundle cylinder is fixedly installed inside the waste liquid tank, a cylinder is fixedly installed at the middle part of the top of the top plate, a telescopic rod is provided at the bottom of the cylinder, the bottom of the telescopic rod is threadedly connected to a limiting seat, a driving motor is fixedly installed inside the limiting seat, the bottom of the driving motor is threadedly connected to a connecting pipe through a rotating shaft, an assembly disk is fixedly installed at the bottom of the connecting pipe, the outer wall of the connecting pipe and the inner wall of the assembly disk are fixedly installed with a limiting plate, a vertical rod is movably installed inside the limiting plate, a connecting block is fixedly installed at the bottom of the vertical rod, a positioning rod is fixedly installed on the inner side of the connecting block, a pressure roller is movably installed on the surface of the positioning rod, and the diameter of the edges at both ends of the pressure roller is slightly lower than the middle diameter.

[0007] Preferably, a first O-type filter is fixedly mounted on the edge of the top of the bundle barrel, a liquid discharge port is provided in the middle of the top of the bundle barrel, and a second O-type filter is fixedly mounted on the top of the liquid discharge port.

[0008] Preferably, a plurality of support rods are fixedly mounted on the outer side of the bundle barrel, and the support rods are fixedly connected to the inner wall of the waste liquid tank.

[0009] Preferably, support plates are fixedly mounted on both sides of the waste liquid tank, legs are fixedly mounted on the bottom of the support plates, and columns are fixedly mounted on the top of the support plates.

[0010] Preferably, a liquid collecting hopper is fixedly installed at the bottom of the waste liquid tank, and a drain pipe is fixedly installed at the bottom of the liquid collecting hopper.

[0011] Preferably, a stop plate is fixedly mounted on the middle portion of the vertical rod, a spring is sleeved on the surface of the vertical rod, and a baffle is fixedly mounted on the top of the vertical rod.

[0012] Preferably, a plurality of vertical holes are provided on the top of the assembly disk, and the number of the vertical holes matches that of the pressure roller.

[0013] The beneficial effects of the utility model are:

[0014] The utility model realizes the function of continuous squeezing and dehydration through the structural design of the bundle barrel, cylinder, telescopic rod, drive motor, assembly disk and pressure roller, and through the mutual cooperation between the structures, thereby the paper pulp can be kept evenly distributed when under pressure through the cyclic work of the pressure roller, thereby ensuring the uniformity of the dehydration effect, thereby improving the dehydration effect and solving the problem of low efficiency of single squeezing and dehydration.

[0015] The utility model realizes the solid-liquid separation function through the structural design of the first O-type filter, the drain port and the second O-type filter, thereby ensuring that the pulp can be separated from the waste liquid at any part, reducing the waste liquid transfer process inside the pulp, and thus increasing the dehydration efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0017] Figure 1 This is a schematic diagram of the front three-dimensional structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the front planar structure of the present utility model;

[0019] Figure 3 It is a partial enlarged structural schematic diagram of the utility model;

[0020] Figure 4 This is a schematic cross-sectional structural diagram of the assembly disk of the present utility model;

[0021] Figure 5 This is a schematic cross-sectional view of the second O-type filter screen of the present invention.

[0022] In the figure: 1, waste liquid tank; 2, top plate; 3, beam barrel; 4, cylinder; 5, telescopic rod; 6, limit seat; 7, drive motor; 8, connecting pipe; 9, assembly plate; 10, limit plate; 11, vertical rod; 12, connecting block; 13, positioning rod; 14, pressure roller; 15, first O-type filter; 16, drain port; 17, second O-type filter; 18, support rod; 19, support plate; 20, support leg; 21, column; 22, liquid collecting hopper; 23, drain pipe; 24, stop plate; 25, spring; 26, baffle; 27, vertical hole DETAILED DESCRIPTION

[0023] The present invention will now be described in further detail with reference to the accompanying drawings, which are simplified schematic diagrams that illustrate the basic structure of the present invention in a schematic manner.

[0024] In the description of this utility model, it should be noted that, unless otherwise specified or limited, the terms "connected" and "connection" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integral connection; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediary. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0025] The following is combined with Figure 1-5 To further explain this application,

[0026] The embodiment of the present application discloses a pulp dewatering device in a papermaking process, including a waste liquid tank 1 and a top plate 2, a material bundle barrel 3 is fixedly installed inside the waste liquid tank 1, a cylinder 4 is fixedly installed on the middle part of the top of the top plate 2, a telescopic rod 5 is provided at the bottom of the cylinder 4, the bottom of the telescopic rod 5 is threadedly connected to a limiting seat 6, a driving motor 7 is fixedly installed inside the limiting seat 6, a connecting pipe 8 is threadedly connected to the bottom of the driving motor 7 through a rotating shaft, an assembly disk 9 is fixedly installed on the bottom of the connecting pipe 8, a limiting plate 10 is fixedly installed on the outer wall of the connecting pipe 8 and the inner wall of the assembly disk 9, a vertical rod 11 is movably installed inside the limiting plate 10, a connecting block 12 is fixedly installed on the bottom of the vertical rod 11, a positioning rod 13 is fixedly installed on the inner side of the connecting block 12, a pressure roller 14 is movably installed on the surface of the positioning rod 13, and the diameter of the edges at both ends of the pressure roller 14 is slightly lower than the diameter of the middle part.

[0027] Reference Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 Through the structural design of the bundle barrel 3, cylinder 4, telescopic rod 5, drive motor 7, assembly disk 9, and pressure roller 14, and through the mutual cooperation between the structures, the function of continuous squeezing and dehydration is achieved. Therefore, through the cyclic work of the pressure roller 14, the pulp can be kept evenly distributed when under pressure, thereby ensuring the uniformity of the dehydration effect, thereby improving the dehydration effect and solving the problem of low dehydration efficiency of a single squeeze.

[0028] A first O-type filter 15 is fixedly mounted on the edge of the top of the bundle barrel 3 , a drain port 16 is provided in the middle of the top of the bundle barrel 3 , and a second O-type filter 17 is fixedly mounted on the top of the drain port 16 .

[0029] Reference Figure 5 Through the structural design of the first O-type filter 15, the drain port 16, and the second O-type filter 17, the solid-liquid separation function is achieved, thereby ensuring that the pulp can be separated from the waste liquid at any part, reducing the transfer process of the waste liquid inside the pulp, and thus increasing the dehydration efficiency.

[0030] A plurality of support rods 18 are fixedly mounted on the outer side of the bundle barrel 3 , and the support rods 18 are fixedly connected to the inner wall of the waste liquid tank 1 .

[0031] Reference Figure 5 The support rod 18 is used to provide support to the bundle barrel 3, thereby ensuring that the pulp can receive sufficient pressure, thereby ensuring the dehydration effect.

[0032] Support plates 19 are fixedly mounted on both sides of the waste liquid tank 1 , legs 20 are fixedly mounted on the bottom of the support plates 19 , and columns 21 are fixedly mounted on the top of the support plates 19 .

[0033] Reference Figure 1 and Figure 5 The function of increasing the stability of the device is achieved through the support plate 19 and the support legs 20, thereby ensuring that the equipment obtains uniform pressure and dehydration effect during operation, thereby ensuring the stability of the quality of the pulp.

[0034] A liquid collecting hopper 22 is fixedly installed at the bottom of the waste liquid tank 1 , and a liquid drain pipe 23 is fixedly installed at the bottom of the liquid collecting hopper 22 .

[0035] Reference Figure 2 The function of providing guidance is achieved through the liquid collecting hopper 22 and the liquid discharge pipe 23, thereby quickly releasing the waste liquid from the equipment, while reducing the dead corners inside the equipment and avoiding excessive accumulation of waste liquid inside the device.

[0036] A stop plate 24 is fixedly mounted on the middle portion of the vertical rod 11 , a spring 25 is sleeved on the surface of the vertical rod 11 , and a baffle 26 is fixedly mounted on the top of the vertical rod 11 .

[0037] Reference Figure 3 and Figure 4 The function of protecting the pulp fibers is achieved through the support plate 24 and the spring 25, thereby providing appropriate movement space to prevent the pulp from being excessively squeezed, thereby protecting the pulp fibers from being damaged. At the same time, the equipment can adapt to different pulp concentrations and processing requirements, thereby improving production flexibility and efficiency.

[0038] The top of the assembly disk 9 is provided with a plurality of vertical holes 27 , the number of which matches that of the pressure roller 14 .

[0039] Reference Figure 4 The vertical hole 27 provides space for the pressure roller 14 to rise, thereby making better use of the deformable characteristics of the spring 25.

[0040] Working principle: When using this device, the pulp is carried by the bundle barrel 3, the cylinder 4 lowers the height of the pressure roller 14 through the telescopic rod 5, and the driving motor 7 drives the pressure roller 14 to rotate through the assembly disk 9. The pulp is compressed and dehydrated by the pressure roller 14. While the pressure roller 14 revolves under the drive of the assembly disk 9 to compress the pulp, it is resisted by the pulp on the surface of the positioning rod 13 to form self-rotation, which disturbs the pulp and makes the pulp evenly distributed. At the same time, under the shape of the pressure roller 14 itself, the pulp is squeezed at the first O-type filter 15 and the second O-type filter 17. After being compressed, the waste liquid is released into the waste liquid tank 1 through the first O-type filter 15 and the second O-type filter 17, and the waste liquid is collected by the liquid collecting hopper 22 and released out of the equipment through the drain pipe 23.

[0041] Based on the above-mentioned ideal embodiment of the present invention, and in accordance with the above description, relevant personnel can make various changes and modifications without departing from the technical scope of the present invention. The technical scope of the present invention is not limited to the content of the specification, but must be determined according to the scope of the claims.

Claims

1. A pulp dewatering device in a papermaking process, characterized by: The invention comprises a waste liquid tank (1) and a top plate (2), wherein a beam barrel (3) is fixedly installed inside the waste liquid tank (1), a cylinder (4) is fixedly installed at the middle part of the top of the top plate (2), a telescopic rod (5) is provided at the bottom of the cylinder (4), the bottom of the telescopic rod (5) is threadedly connected to a limit seat (6), a driving motor (7) is fixedly installed inside the limit seat (6), the bottom of the driving motor (7) is threadedly connected to a connecting pipe (8) through a rotating shaft, an assembly disk (9) is fixedly installed at the bottom of the connecting pipe (8), a limiting plate (10) is fixedly installed on the outer wall of the connecting pipe (8) and the inner wall of the assembly disk (9), a vertical rod (11) is movably installed inside the limiting plate (10), a connecting block (12) is fixedly installed at the bottom of the vertical rod (11), a positioning rod (13) is fixedly installed on the inner side of the connecting block (12), a pressure roller (14) is movably installed on the surface of the positioning rod (13), and the diameter of the pressure roller (14) at the two end edges is lower than the diameter of the middle part.

2. The pulp dewatering device in a papermaking process according to claim 1, characterized in that: A first O-type filter (15) is fixedly mounted on the edge of the top of the bundle barrel (3), a liquid discharge port (16) is provided in the middle of the top of the bundle barrel (3), and a second O-type filter (17) is fixedly mounted on the top of the liquid discharge port (16).

3. The pulp dewatering equipment in a papermaking process according to claim 1, characterized in that: A plurality of support rods (18) are fixedly mounted on the outer side of the bundle barrel (3), and the support rods (18) are fixedly connected to the inner wall of the waste liquid tank (1).

4. The pulp dewatering device in a papermaking process according to claim 1, characterized in that: Support plates (19) are fixedly mounted on both sides of the waste liquid tank (1), legs (20) are fixedly mounted on the bottom of the support plates (19), and columns (21) are fixedly mounted on the top of the support plates (19).

5. The pulp dewatering equipment in a papermaking process according to claim 1, characterized in that: A liquid collecting hopper (22) is fixedly mounted on the bottom of the waste liquid tank (1), and a liquid drain pipe (23) is fixedly mounted on the bottom of the liquid collecting hopper (22).

6. The pulp dewatering device in a papermaking process according to claim 1, characterized in that: A stop plate (24) is fixedly mounted on the middle portion of the vertical rod (11), a spring (25) is sleeved on the surface of the vertical rod (11), and a baffle (26) is fixedly mounted on the top of the vertical rod (11).

7. The pulp dewatering equipment in a papermaking process according to claim 1, characterized in that: A plurality of vertical holes (27) are provided on the top of the assembly disk (9), and the number of the vertical holes (27) matches that of the pressure roller (14).

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