Papermaking pulper sieve plate

Abstract

The utility model relates to a papermaking pulper sieve plate, which belongs to the technical field of papermaking and comprises a pulper, a centrifugal motor is fixedly mounted at the bottom of the pulper, a centrifugal rotating shaft is rotatably mounted on the inner bottom wall of the pulper, the bottom end of the centrifugal rotating shaft is fixedly connected with the output end of the centrifugal motor, and an anti-blocking sieve plate is fixedly mounted at the top end of the centrifugal rotating shaft. A feeding pipe is fixedly installed at the top of the pulper, and a discharging pipe is fixedly installed at the bottom of the pulper. According to the papermaking pulper sieve plate, the anti-blocking sieve plate is installed at the top end of the centrifugal rotating shaft, the centrifugal motor drives the anti-blocking sieve plate to rotate rapidly, when fibers in paper pulp are gathered into clusters to block the inclined sieve holes, the arc-shaped sieve plate rotates, under the action of centrifugal force, the fiber clusters are thrown out of the inclined sieve holes, and the problem that when the fibers in the paper pulp are screened, the inclined sieve holes are blocked is solved. The problems that the screening effect is reduced due to the fact that fibers in paper pulp are clustered to block screen holes easily, a screen plate needs to be cleaned frequently in the working process, and the papermaking efficiency is reduced are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of papermaking, in particular to a screen plate for a papermaking pulper. Background Art

[0002] Papermaking refers to the process of processing plant fibers such as wood, bamboo, grass, etc. or non-plant fibers such as waste paper into pulp by mechanical, chemical or a combination of the two methods, and then mixing the pulp and its additives evenly to make paper products by manual or machine papermaking. In the papermaking process, there are many steps involved, such as material preparation, pulping, and papermaking. Material preparation refers to the pretreatment and processing of papermaking raw materials, such as peeling, slicing, and cooking; pulping is the process of separating raw materials into fibers, including chemical methods, mechanical methods, and chemical mechanical methods; papermaking is the process of making paper products by machine or manual methods.

[0003] In the pulping process, a pulper is needed. Its main function is to break up, fluidize and disperse raw materials such as pulp and waste paper into a mild mixture suitable for papermaking. A pulper is usually composed of a motor, a reducer, a rotating blade, a shell, blades and other parts. The rotating blade is the core component, which can impact and cut the material through high-speed rotation to break it into fine pulp. The screen plate is a key component in a papermaking pulper. Its main function is to screen the fibers and impurities in the pulp, so that the fibers can be further separated and adjusted, thereby improving the quality and performance of the paper.

[0004] However, the common screen plate has a simple structure. When screening the fibers in the pulp, the fibers in the pulp aggregate into clumps, which easily clog the screen holes, resulting in a decrease in the screening effect. The screen plate needs to be cleaned frequently during operation, which reduces the papermaking efficiency. In view of this, the present application proposes a papermaking pulper screen plate. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a paper pulping machine screen plate, which has the advantages of preventing the screen plate from clogging the screen holes, etc., and solves the problem that when screening the fibers in the pulp, the fibers in the pulp aggregate into clumps and easily clog the screen holes, resulting in a decrease in the screening effect, and the screen plate needs to be cleaned frequently during operation, thereby reducing the papermaking efficiency.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a screen plate for a papermaking pulper, comprising a pulper, a centrifugal motor is fixedly installed at the bottom of the pulper, a centrifugal shaft whose bottom end is fixedly connected to the output end of the centrifugal motor is rotatably installed on the inner bottom wall of the pulper, an anti-blocking screen plate is fixedly installed at the top of the centrifugal shaft, a feed pipe is fixedly installed at the top of the pulper, and a discharge pipe is fixedly installed at the bottom of the pulper;

[0007] The anti-blocking screen plate comprises an arc-shaped screen plate fixedly mounted on the top of the centrifugal shaft, a plurality of inclined screen holes are provided on the top of the arc-shaped screen plate, and the bottom ends of the inclined screen holes are inclined toward the inner side wall of the pulper.

[0008] Furthermore, a feed hopper is fixedly installed on the top of the feed pipe, a discharge valve is fixedly installed on the surface of the discharge pipe, and the side surface of the arc-shaped screen plate is in contact with the inner side wall of the pulper.

[0009] Furthermore, a stirring blade is fixedly mounted on the surface of the centrifugal shaft, and a scraper is fixedly mounted on the side of the stirring blade away from the centrifugal shaft.

[0010] Furthermore, a pulping shaft is rotatably mounted on the inner top wall of the pulper, a movable knife is fixedly mounted on the surface of the pulping shaft, and a fixed knife matched with the movable knife is fixedly mounted on the inner side wall of the pulper.

[0011] Furthermore, a homogenizing plate is fixedly mounted on the surface of the pulping shaft, and the homogenizing plate is in contact with the top of the arc-shaped screen plate.

[0012] Furthermore, a pulping motor is fixedly installed at the bottom of the pulper, and the output end of the pulping motor is fixedly connected to the top end of the pulping shaft.

[0013] Furthermore, a support plate is fixedly mounted on the surface of the pulper, a support leg is fixedly mounted on the bottom of the support plate, a bottom plate is fixedly mounted on the bottom end of the support leg, and an observation window is fixedly mounted on the surface of the pulper.

[0014] Compared with the prior art, the utility model provides a paper pulping machine screen plate, which has the following beneficial effects:

[0015] The paper pulping machine screen plate is achieved by installing the anti-blocking screen plate on the top of the centrifugal shaft and driving the anti-blocking screen plate to rotate rapidly through a centrifugal motor. When fibers in the pulp gather into clusters and block the inclined screen holes, the arc-shaped screen plate rotates, and the fiber clusters are thrown out of the inclined screen holes under the action of centrifugal force, thereby solving the problem that when screening the fibers in the pulp, the fibers in the pulp gather into clusters and easily block the screen holes, resulting in a decrease in screening effect, and the screen plate needs to be cleaned frequently during operation, thereby reducing papermaking efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 This is a front view of the structure of the utility model;

[0018] Figure 3 It is a top view cross-sectional view of the structure of the utility model;

[0019] Figure 4It is a three-dimensional schematic diagram of the anti-blocking screen plate of the utility model.

[0020] In the figure: 1. pulper; 2. centrifugal motor; 3. centrifugal shaft; 4. anti-blocking screen plate; 41. curved screen plate; 42. inclined screen hole; 5. feed pipe; 6. discharge pipe; 7. stirring blade; 8. scraper; 9. pulping shaft; 91. homogenizing plate; 10. movable knife; 11. fixed knife; 12. pulping motor; 13. support plate; 14. support leg; 15. bottom plate; 16. observation window. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] Example 1: Please refer to Figure 1-4 A paper pulper screen plate comprises a pulper 1, a centrifugal motor 2 is fixedly installed at the bottom of the pulper 1, a centrifugal shaft 3 whose bottom end is fixedly connected to the output end of the centrifugal motor 2 is rotatably installed on the inner bottom wall of the pulper 1, an anti-blocking screen plate 4 is fixedly installed at the top of the centrifugal shaft 3, a feed pipe 5 is fixedly installed at the top of the pulper 1, and a discharge pipe 6 is fixedly installed at the bottom of the pulper 1.

[0023] The anti-blocking screen plate 4 includes an arc-shaped screen plate 41 fixedly mounted on the top of the centrifugal shaft 3, and a plurality of inclined screen holes 42 are provided on the top of the arc-shaped screen plate 41, and the bottom of the inclined screen holes 42 is inclined toward the inner wall of the pulper 1. When the pulp falls on the arc-shaped screen plate 41 and is screened through the inclined screen holes 42, and the fibers in the pulp are aggregated and block the inclined screen holes 42, the centrifugal motor 2 drives the centrifugal shaft 3 to rotate, drives the arc-shaped screen plate 41 to rotate, and throws the fibers in the pulp out of the inclined screen holes 42.

[0024] Secondly, a feed hopper is fixedly installed on the top of the feed pipe 5 , a discharge valve is fixedly installed on the surface of the discharge pipe 6 , and the side surface of the arc-shaped screen plate 41 contacts the inner side wall of the pulper 1 .

[0025] Meanwhile, a pulping shaft 9 is rotatably mounted on the inner top wall of the pulper 1 , a movable knife 10 is fixedly mounted on the surface of the pulping shaft 9 , and a fixed knife 11 matched with the movable knife 10 is fixedly mounted on the inner side wall of the pulper 1 .

[0026] A pulping motor 12 is fixedly installed at the bottom of the pulper 1, and the output end of the pulping motor 12 is fixedly connected to the top of the pulping shaft 9. When the pulping motor 12 is started, the pulping shaft 9 is driven to rotate, and the movable knife 10 rotates and cooperates with the fixed knife 11 to chop the raw materials.

[0027] Meanwhile, a support plate 13 is fixedly mounted on the surface of the pulper 1, a support leg 14 is fixedly mounted on the bottom of the support plate 13, a bottom plate 15 is fixedly mounted on the bottom end of the support leg 14, and an observation window 16 is fixedly mounted on the surface of the pulper 1. The observation window 16 is used to observe the internal situation of the pulper 1.

[0028] Embodiment 2: Based on the embodiment 1, a stirring blade 7 is fixedly mounted on the surface of the centrifugal shaft 3, and a scraper 8 is fixedly mounted on the side of the stirring blade 7 away from the centrifugal shaft 3. The centrifugal shaft 3 rotates, driving the stirring blade 7 to rotate, preventing the fibers in the pulp from hanging on the bottom, and the stirring blade 7 drives the scraper 8 to rotate, scraping off the fibers adhering to the inner wall of the pulper 1.

[0029] A homogenizing plate 91 is fixedly mounted on the surface of the pulping shaft 9, and the homogenizing plate 91 contacts the top of the arc-shaped screen plate 41. The pulping shaft 9 rotates, driving the homogenizing plate 91 to rotate, so that the pulp on the top of the arc-shaped screen plate 41 is in a flowing state, which is convenient for screening.

[0030] When this embodiment is in use, the pulping motor 12 drives the movable knife 10 to rotate and cooperates with the fixed knife 11 to chop the raw material, and the pulp falls on the anti-blocking screen plate 4 for screening. When the fibers in the pulp gather into balls and block the inclined screen holes 42, the centrifugal motor 2 drives the centrifugal shaft 3 to rotate, and drives the arc screen plate 41 to rotate, so that the fibers in the pulp are thrown out from the inclined screen holes 42, thereby preventing the inclined screen holes 42 from being blocked.

[0031] The electrical components appearing in the article are all electrically connected to the main controller and the power supply. The main controller can be a conventional known device for control such as a computer, and the existing public power connection technology is not described in detail in the article.

[0032] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A paper pulper screen plate, comprising a pulper (1), characterized in that: A centrifugal motor (2) is fixedly mounted at the bottom of the pulper (1); a centrifugal shaft (3) whose bottom end is fixedly connected to the output end of the centrifugal motor (2) is rotatably mounted on the inner bottom wall of the pulper (1); an anti-blocking screen plate (4) is fixedly mounted on the top of the centrifugal shaft (3); a feed pipe (5) is fixedly mounted on the top of the pulper (1); and a discharge pipe (6) is fixedly mounted on the bottom of the pulper (1); The anti-blocking screen plate (4) comprises an arc-shaped screen plate (41) fixedly mounted on the top of the centrifugal shaft (3), a plurality of inclined screen holes (42) are provided on the top of the arc-shaped screen plate (41), and the bottom ends of the inclined screen holes (42) are inclined toward the inner wall of the pulper (1).

2. A paper pulper screen plate according to claim 1, characterized in that: A feed hopper is fixedly mounted on the top of the feed pipe (5), a discharge valve is fixedly mounted on the surface of the discharge pipe (6), and the side surface of the arc-shaped screen plate (41) is in contact with the inner wall of the pulper (1).

3. A paper pulper screen plate according to claim 1, characterized in that: A stirring blade (7) is fixedly mounted on the surface of the centrifugal rotating shaft (3), and a scraper (8) is fixedly mounted on the side of the stirring blade (7) away from the centrifugal rotating shaft (3).

4. A paper pulper screen plate according to claim 1, characterized in that: A pulping shaft (9) is rotatably mounted on the inner top wall of the pulper (1), a movable knife (10) is fixedly mounted on the surface of the pulping shaft (9), and a fixed knife (11) matched with the movable knife (10) is fixedly mounted on the inner side wall of the pulper (1).

5. A paper pulper screen plate according to claim 4, characterized in that: A homogenizing plate (91) is fixedly mounted on the surface of the pulping shaft (9), and the homogenizing plate (91) is in contact with the top of the arc-shaped screen plate (41).

6. A paper pulper screen plate according to claim 4, characterized in that: A pulping motor (12) is fixedly mounted at the bottom of the pulper (1), and the output end of the pulping motor (12) is fixedly connected to the top end of the pulping shaft (9).

7. A paper pulper screen plate according to claim 1, characterized in that: A support plate (13) is fixedly mounted on the surface of the pulper (1), a support leg (14) is fixedly mounted on the bottom of the support plate (13), a bottom plate (15) is fixedly mounted on the bottom end of the support leg (14), and an observation window (16) is fixedly mounted on the surface of the pulper (1).

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