Headbox for producing cellulose-based fluorescent paper

Abstract

The utility model provides a headbox for producing cellulose-based fluorescent paper, which belongs to the technical field of papermaking equipment and comprises a box body and a stirring component arranged on the outer wall of the box body, the stirring component comprises six return pipes, six screw rods and two auxiliary stirring rollers, each auxiliary stirring roller is rotatably arranged on the inner wall of the box body, and the screw rods are arranged on the outer wall of the box body. Each backflow pipe is arranged on the outer wall of the box body in a communicating mode, each spiral rod is rotationally arranged in the corresponding backflow pipe, one end of each spiral rod extends to the position above the corresponding backflow pipe, and first belt wheels are fixedly arranged on the outer walls of the four spiral rods. Paper pulp flows back and is secondarily stirred through the stirring assembly, so that comprehensive flowing of the paper pulp in the box body can be ensured, the paper pulp originally precipitated at the bottom participates in the stirring process again, precipitation accumulation of the paper pulp at the bottom of the box body can be effectively reduced, and the problems of uneven paper pulp quality, equipment blockage and the like caused by excessive precipitation are solved; therefore, the overall stirring uniformity is improved.

Description

Technical Field

[0001] This utility model belongs to the field of papermaking equipment technology, specifically relating to a headbox for producing cellulose-based fluorescent paper. Background Technology

[0002] The headbox is a key component of the paper machine, connecting the "flow" and "forming" parts. It provides good preconditions for paper sheet formation. Different types of headboxes are suitable for the production needs of different machine speeds and paper types. The production of fluorescent paper requires the use of specific fluorescent agents or other additives to give the paper fluorescent properties. These additives need to be evenly distributed in the pulp to ensure that the fluorescent properties of the paper are uniform. In order to ensure the uniform distribution of fluorescent agents in the pulp, the headbox needs to have more precise homogenization capabilities.

[0003] A headbox used for producing cellulose-based fluorescent paper may have the following drawbacks: the pulp is prone to sedimentation, the stirring intensity is insufficient, and the stirring range is limited, which can lead to uneven stirring of the pulp. Uneven stirring can result in uneven distribution of the fluorescent agent in the pulp, causing differences in the fluorescent properties of the produced fluorescent paper, with some areas showing strong fluorescence and others showing weak fluorescence, which can affect the stirring effect. Utility Model Content

[0004] The purpose of this invention is to provide a headbox for producing cellulose-based fluorescent paper, aiming to solve the problems raised in the background art.

[0005] A headbox for producing cellulose-based fluorescent paper, comprising,

[0006] Box;

[0007] A stirring assembly is located on the outer wall of the housing. The stirring assembly includes six reflux pipes, six spiral rods, and two auxiliary stirring rollers. Each auxiliary stirring roller is rotatably mounted on the inner wall of the housing. Each reflux pipe is connected to the outer wall of the housing. Each spiral rod is rotatably mounted inside the corresponding reflux pipe, and one end of each spiral rod extends above the reflux pipe. Four of the spiral rods have a first pulley fixedly mounted on their outer walls, and the other two spiral rods have two first pulleys fixedly mounted on their outer walls. The eight first pulleys are divided into four groups, and a first multi-groove belt is fitted between the outer walls of the first pulleys in each group.

[0008] Furthermore, a feed inlet is provided at the top of the outer wall of the box, and a slurry discharge pipe is connected to one side of the outer wall of the box.

[0009] Furthermore, two first motors are fixedly installed on the top of the outer wall of the box, and the output end of each first motor is fixedly connected to the corresponding screw rod.

[0010] Furthermore, two main stirring rollers are rotatably mounted on the inner wall of the box.

[0011] Furthermore, a second pulley is fixedly installed at one end of the outer wall of each of the main stirring rollers, and a second multi-groove belt is sleeved between the outer walls of the two second pulleys. A third motor is fixedly installed on the outer wall of the housing, and the output end of the third motor is fixedly connected to one of the main stirring rollers.

[0012] Furthermore, a third pulley is fixedly installed at one end of the outer wall of each of the auxiliary stirring rollers, and a third multi-groove belt is sleeved between the outer walls of the two third pulleys. A fourth motor is fixedly installed on one side of the outer wall of the housing, and the output end of the fourth motor is fixedly connected to one of the auxiliary stirring rollers.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] By using the mixing components to recirculate and re-mix the pulp, we can ensure the full flow of the pulp within the tank. This allows the pulp that was originally settled at the bottom to participate in the mixing process again, which can effectively reduce the accumulation of pulp at the bottom of the tank. This avoids problems such as uneven pulp quality and equipment blockage caused by excessive sedimentation, thereby improving the overall mixing uniformity. Attached Figure Description

[0015] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0016] Figure 1 This is a first-view perspective perspective view of the present invention;

[0017] Figure 2 For the present utility model Figure 1 Enlarged view of A in the middle;

[0018] Figure 3 This is a sectional perspective view of the present invention;

[0019] Figure 4 This is a second-view perspective perspective view of the present invention.

[0020] In the diagram: 1. Box body; 2. Feed inlet; 3. First motor; 4. Third multi-groove belt; 5. Slurry discharge pipe; 6. Return pipe; 7. Screw rod; 8. First pulley; 9. First multi-groove belt; 10. Auxiliary stirring roller; 11. Main stirring roller; 12. Third motor; 13. Fourth motor; 14. Second pulley; 15. Second multi-groove belt; 16. Third pulley. Detailed Implementation

[0021] 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.

[0022] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0024] Please see Figure 1-4 The technical solution provided in this embodiment is as follows:

[0025] A headbox for producing cellulose-based fluorescent paper, comprising,

[0026] Box 1;

[0027] The stirring assembly is located on the outer wall of the housing 1. The stirring assembly includes six return pipes 6, six spiral rods 7, and two auxiliary stirring rollers 10. Each auxiliary stirring roller 10 is rotatably mounted on the inner wall of the housing 1. Each return pipe 6 is connected to the outer wall of the housing 1. Each spiral rod 7 is rotatably mounted inside the corresponding return pipe 6, and one end of each spiral rod 7 extends above the return pipe 6. The outer walls of four spiral rods 7 are fixedly equipped with first pulleys 8, and the outer walls of the other two spiral rods 7 are fixedly equipped with two first pulleys 8. The eight first pulleys 8 are divided into four groups, and a first multi-groove belt 9 is sleeved between the outer walls of each group of first pulleys 8.

[0028] In a specific embodiment of this utility model, the secondary stirring of the pulp via the stirring assembly ensures the full flow of the pulp within the tank 1. This allows the pulp that was originally settled at the bottom to participate in the stirring process again, effectively reducing the accumulation of pulp sediment at the bottom of the tank 1. This avoids problems such as uneven pulp quality and equipment blockage caused by excessive sedimentation, thereby improving the overall stirring uniformity. First, the fluorescent material and pulp are fed into the tank 1 through the feed inlet 2. Then, the third motor 12 drives the second multi-groove belt 15 and the second pulley 14 to rotate, causing the two main stirring rollers 11 to rotate and stir the pulp in the tank 1. The bottom of the tank 1 is arc-shaped. The shape allows the downward-settling pulp to flow slowly to both sides. The operation of the fourth motor 13 causes the third multi-groove belt 4 to rotate and drive the third pulley 16 to rotate, thereby enabling the two auxiliary stirring rollers 10 to rotate. This stirs the pulp at the bottom of both sides of the box 1 and flows it into the return pipe 6. The operation of the first motor 3 causes each screw rod 7 to rotate through the corresponding first pulley 8 and the first multi-groove belt 9, which can transport the pulp at the bottom of the return pipe 6 to the top and flow back into the box 1 to be stirred above the main stirring roller 11. The purpose is to perform secondary stirring of the pulp at the bottom of the box 1. Finally, the fully homogenized pulp is discharged into the next production stage through the pulp discharge pipe 5.

[0029] Specifically, a feed inlet 2 is provided at the top of the outer wall of the box 1, and a slurry discharge pipe 5 is connected to one side of the outer wall of the box 1.

[0030] In a specific embodiment of this utility model, a pulp discharge pipe 5 is connected to one side of the outer wall of the box 1 to facilitate the discharge of the evenly stirred pulp liquid from the pulp discharge pipe 5.

[0031] Specifically, two first motors 3 are fixedly installed on the top of the outer wall of the housing 1, and the output end of each first motor 3 is fixedly connected to the corresponding screw rod 7.

[0032] In a specific embodiment of this utility model, the output end of each first motor 3 is fixedly connected to the corresponding screw rod 7, which can ensure stable power transmission.

[0033] Specifically, the inner wall of the housing 1 is equipped with two main stirring rollers 11.

[0034] In a specific embodiment of this utility model, two main stirring rollers 11 are rotatably arranged on the inner wall of the box 1, which can fully stir and mix the pulp liquid.

[0035] Specifically, a second pulley 14 is fixedly installed at one end of the outer wall of each main stirring roller 11, and a second multi-groove belt 15 is sleeved between the outer walls of the two second pulleys 14. A third motor 12 is fixedly installed on the outer wall of the housing 1, and the output end of the third motor 12 is fixedly connected to one of the main stirring rollers 11.

[0036] In a specific embodiment of this utility model, the output end of the third motor 12 is fixedly connected to one of the main stirring rollers 11, which can achieve stable power transmission.

[0037] Specifically, a third pulley 16 is fixedly installed at one end of the outer wall of each auxiliary stirring roller 10, and a third multi-groove belt 4 is sleeved between the outer walls of the two third pulleys 16. A fourth motor 13 is fixedly installed on one side of the outer wall of the housing 1, and the output end of the fourth motor 13 is fixedly connected to one of the auxiliary stirring rollers 10.

[0038] In a specific embodiment of this utility model, a third multi-groove belt 4 is sleeved between the outer walls of the two third pulleys 16, and the stable operation of the corresponding screw rod 7 can be achieved through the third multi-groove belt 4 and the corresponding third pulley 16.

[0039] Working principle: First, fluorescent material and pulp are fed into box 1 through feed inlet 2. Then, the third motor 12 drives the second multi-groove belt 15 and the second pulley 14 to rotate, causing the two main stirring rollers 11 to rotate and stir the pulp in box 1. The bottom of box 1 is arc-shaped, which allows the downward sedimenting pulp to flow slowly to both sides. The fourth motor 13 drives the third multi-groove belt 4 to rotate and drives the third pulley 16 to rotate, thereby enabling the two auxiliary stirring rollers 10 to rotate and stir the pulp at the bottom of both sides of box 1 and flow into return pipe 6. The first motor 3 drives each screw rod 7 to rotate through the corresponding first pulley 8 and first multi-groove belt 9, which can transport the pulp at the bottom of return pipe 6 to the top and flow back into box 1 to stir above the main stirring rollers 11. The purpose is to perform secondary stirring of the pulp at the bottom of box 1. Finally, the fully homogenized pulp is discharged into the next production stage through discharge pipe 5.

[0040] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the 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 headbox for producing cellulose-based fluorescent paper, characterized in that, include, Box (1); A stirring assembly is located on the outer wall of the housing (1). The stirring assembly includes six return pipes (6), six spiral rods (7), and two auxiliary stirring rollers (10). Each auxiliary stirring roller (10) is rotatably disposed on the inner wall of the housing (1). Each return pipe (6) is connected to the outer wall of the housing (1). Each spiral rod (7) is rotatably disposed inside the corresponding return pipe (6), and one end of each spiral rod (7) extends above the return pipe (6). The outer walls of four spiral rods (7) are fixedly provided with first pulleys (8), and the outer walls of the other two spiral rods (7) are fixedly provided with two first pulleys (8). The eight first pulleys (8) are divided into four groups, and a first multi-groove belt (9) is sleeved between the outer walls of each group of first pulleys (8).

2. The headbox for producing cellulose-based fluorescent paper according to claim 1, characterized in that, The top of the outer wall of the box (1) is provided with a feed inlet (2), and a slurry discharge pipe (5) is connected to one side of the outer wall of the box (1).

3. A headbox for producing cellulose-based fluorescent paper according to claim 2, characterized in that, Two first motors (3) are fixedly installed on the top of the outer wall of the box (1), and the output end of each first motor (3) is fixedly connected to the corresponding screw rod (7).

4. A headbox for producing cellulose-based fluorescent paper according to claim 3, characterized in that, The inner wall of the box (1) is rotatably equipped with two main stirring rollers (11).

5. A headbox for producing cellulose-based fluorescent paper according to claim 4, characterized in that, Each of the main stirring rollers (11) has a second pulley (14) fixedly installed at one end of its outer wall. A second multi-groove belt (15) is sleeved between the outer walls of the two second pulleys (14). A third motor (12) is fixedly installed on the outer wall of the housing (1). The output end of the third motor (12) is fixedly connected to one of the main stirring rollers (11).

6. A headbox for producing cellulose-based fluorescent paper according to claim 5, characterized in that, Each of the auxiliary stirring rollers (10) has a third pulley (16) fixedly installed at one end of its outer wall. A third multi-groove belt (4) is sleeved between the outer walls of the two third pulleys (16). A fourth motor (13) is fixedly installed on one side of the outer wall of the housing (1). The output end of the fourth motor (13) is fixedly connected to one of the auxiliary stirring rollers (10).

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