Dispersing agent batching device for papermaking

Abstract

The dispersing agent batching device comprises a box body, a conveying cylinder is vertically arranged in the box body, the lower end of the conveying cylinder penetrates through the bottom of the box body, an opening is formed in the upper end of the conveying cylinder, an auger is arranged in the conveying cylinder, and the upper end of the auger penetrates through the top of the box body and is connected with the output end of a second motor; a filter plate is arranged between the outer side of an opening in the upper end of the conveying cylinder and the side wall of the box body, and the periphery of the conveying cylinder on the lower side of the filter plate is sleeved with a mixing component. According to the utility model, the filter plate is arranged, so that gel clusters influencing the quality of paper finished products are filtered out before a dispersing agent is added into paper pulp; meanwhile, the dispersing agent can be more uniformly dispersed in the paper pulp when being added through the filter plate, so that the mixing efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of dispersant batching devices, in particular to a dispersant batching device for papermaking. Background Art

[0002] In the papermaking process, the paper fibers and fillers in the pulp are not soluble in water and tend to aggregate in water. It is often difficult to produce paper with uniform performance and strength that meets the requirements. Dispersants need to be added to increase the viscosity of the pulp to facilitate the uniform dispersion of fibers and fillers, so that the paper is uniform, smooth, flexible and without holes, and the papermaking performance is stable. It is not easy to break the paper and generate powder during papermaking. At the same time, it can improve the tensile force and dry and wet strength of paper products and save pulp. Polyacrylamide is a commonly used dispersant in papermaking. The stirring and dissolving time of polyacrylamide should not be too long, otherwise it will destroy its dispersion effect. Polyacrylamide cannot be completely dissolved during dissolution, and a small number of incompletely dissolved gel groups will appear. The gel group will affect the quality of the finished paper, so it is necessary to prevent the gel group from entering the paper machine. Utility Model Content

[0003] In view of the deficiencies in the prior art, the utility model aims to provide a dispersant dosing device for papermaking.

[0004] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solutions:

[0005] The papermaking dispersant dosing device described in the present technical solution includes a box body, a transmission cylinder is vertically arranged in the box body, the lower end of the transmission cylinder passes through the bottom of the box body, and the upper end is provided with an opening, an auger is arranged in the transmission cylinder, the upper end of the auger passes through the top of the box body and is connected to the output end of the second motor, a filter plate is arranged between the outer side of the opening at the upper end of the transmission cylinder and the side wall of the box body, and a mixing component is sleeved on the outer periphery of the transmission cylinder on the lower side of the filter plate.

[0006] In the above technical solution, preferably, the mixing component includes a sleeve, which is sleeved on the outside of the transmission cylinder, and the lower end of the sleeve is rotatably arranged in a groove at the bottom of the casing, the lower part of the transmission cylinder is sleeved with a second gear, the second gear is meshed with the first gear, the center of the first gear is connected to the output end of the first motor that passes through the bottom of the casing, and a plurality of connecting rods are provided on the outside of the sleeve. The connecting rods are divided into two layers, and the connecting rods of the two layers correspond to each other one by one up and down, and stirring rods are provided on the upper and lower corresponding connecting rods, and the two corresponding connecting rods are connected to the scraper at one end away from the sleeve.

[0007] In the above technical solution, preferably, the stirring rod is W-shaped.

[0008] In the above technical solution, preferably, the scraper is close to the side wall of the box body.

[0009] In the above technical solution, preferably, the filter plate is sleeved on the outside of the transmission cylinder in a trumpet shape, and the surface of the filter plate is inclined from the top of the transmission cylinder to the side wall of the box body.

[0010] In the above technical solution, preferably, an opening is provided on the side wall of the box body located on the upper side of the filter plate, and the opening is sealed by a sealing plug.

[0011] In the above technical solution, preferably, the first motor is installed in a mounting box, and the mounting box is installed on the bottom of the box body and the outer side wall of the transmission cylinder.

[0012] In the above technical solution, preferably, a feed pipe with a solenoid valve is provided on the side wall of the lower part of the transmission cylinder outside the box body, and a sealing door is provided at the bottom of the transmission cylinder.

[0013] In the above technical solution, preferably, a plurality of support rods are provided at the bottom of the box.

[0014] Compared with the prior art, the papermaking dispersant batching device provided by the utility model has the following

[0015] Beneficial effects:

[0016] The utility model provides a filter plate to filter out gel masses that affect the quality of finished paper products before adding dispersants into the paper pulp; at the same time, the filter plate can make the dispersants more evenly dispersed in the paper pulp when added, thereby improving mixing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the internal structure of the batching device of the utility model;

[0018] Figure 2 yes Figure 1 Schematic diagram of part A;

[0019] In the figure: 1-box, 2-transmission cylinder, 3-filter plate, 4-mixing component, 401-sleeve, 402-connecting rod, 403-stirring rod, 404-scraper, 405-first gear, 406-second gear, 407-first motor, 5-installation box, 6-sealing door, 7-auger, 8-second motor, 9-feeding pipe, 10-support rod, 11-sealing plug. DETAILED DESCRIPTION

[0020] It should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first", "second", and "third" 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.

[0021] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it 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 it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0022] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0023] See also Figure 1 and Figure 2 A dispersant dosing device for papermaking provided by an embodiment of the utility model comprises a box body 1, a transmission cylinder 2 is vertically arranged in the box body 1, the lower end of the transmission cylinder 2 passes through the bottom of the box body 1, the upper end is provided with an opening, and there is a distance between the opening and the top of the box body 1, and a feeding pipe 9 with a solenoid valve is provided on the side wall of the lower part of the transmission cylinder 2 located outside the box body 1, a sealing door 6 is provided at the bottom of the transmission cylinder 2, an auger 7 is provided in the transmission cylinder 2, the upper end of the auger 7 passes through the top of the box body 1 and is connected to the output end of the second motor 8, a filter plate 3 is provided between the outer side of the upper end opening of the transmission cylinder 2 and the side wall of the box body 1, and a mixing component 4 is sleeved on the outer periphery of the transmission cylinder 2 on the lower side of the filter plate 3. Before the pulp and the dispersant are mixed, the pulp is first fed into the box body 1 from the feed port of the box body 1. The feed port is located on the side wall of the box body 1 and its height is lower than the height of the filter plate 3 installed on the side wall of the box body 1 (not shown in the figure). The dispersant liquid enters the transmission cylinder 2 from the feed pipe 9, and the second motor 8 is turned on. The second motor 8 drives the auger 7 to rotate, thereby lifting the dispersant liquid upward. Subsequently, the dispersant liquid falls from the upper end of the transmission cylinder 2 onto the filter plate 3 to filter the undissolved gel mass in the dispersant liquid. The dispersant liquid passes through the filter plate 3 and falls to the lower part of the box body 1 to mix with the pulp.

[0024] In order to better implement this utility model, refer to Figure 1 and Figure 2 In one embodiment, the mixing component 4 includes a sleeve 401, which is sleeved on the outside of the transmission cylinder 2, and the lower end is rotatably arranged in a groove at the bottom of the box body 1. The lower part of the transmission cylinder 2 is sleeved with a second gear 406, and the second gear 406 is meshed with the first gear 405. The center of the first gear 405 is connected to the output end of the first motor 407 that runs through the bottom of the box body 1. A plurality of connecting rods 402 are arranged on the outside of the sleeve 401. The connecting rods 402 are divided into two layers, and the connecting rods 402 of the two layers correspond to each other one by one. A stirring rod 403 is arranged on the upper and lower corresponding connecting rods 402, and the two corresponding connecting rods 402 are connected to a scraper 404 at one end away from the sleeve 401. The scraper 404 is close to the side wall of the box body 1, and the stirring rod 403 is W-shaped. The first motor 407 drives the first gear 405 to rotate, the first gear 405 drives the second gear 406 to rotate, the second gear 406 drives the sleeve 401 to rotate, the sleeve 401 drives the connecting rod 402 to rotate, the connecting rod 402 drives the stirring rod 403 and the scraper 404 to rotate, the stirring rod 403 stirs and mixes the pulp and the dispersant liquid, and the scraper 404 prevents the fibers in the pulp from adhering to the side wall of the box body 1.

[0025] In order to better implement this utility model, refer to Figure 1 In one embodiment, the filter plate 3 is horn-shaped and sleeved on the outside of the transmission tube 2, and the surface of the filter plate 3 is inclined from the top of the transmission tube 2 to the side wall of the box body 1. A plurality of openings are provided on the side wall of the box body 1 located on the upper side of the filter plate 3, and the openings are sealed by the sealing plug 11. The inclined filter plate 3 can make the dispersant liquid disperse more evenly when entering the pulp, which can reduce the workload of stirring. After filtration, the gel mass remains on the filter plate 3. The inclined filter plate 3 is convenient for cleaning the gel mass. When the sealing plug 11 is opened, the gel mass can be cleaned out from the opening of the side wall of the box body 1 along the filter plate 3.

[0026] In order to better implement this utility model, refer to Figure 2 In one embodiment, the first motor 407 is installed in a mounting box 5 , and the mounting box 5 is installed on the bottom of the box body 1 and the outer side wall of the transmission cylinder 2 .

[0027] In order to better implement this utility model, refer to Figure 1 In one embodiment, a plurality of support rods 10 are provided at the bottom of the box body 1 .

[0028] Based on the above-mentioned papermaking dispersant dosing device, its working principle is:

[0029] The pulp is put into the box body 1 from the feed port on the side wall of the box body 1. After the feeding is completed, the feed port is closed. At this time, the pulp liquid level needs to be lower than the height of the sleeve 401. The feed pipe 9 is opened to add the dispersant liquid into the transmission cylinder 2. At this time, the second motor 8 is turned on to drive the auger 7 to rotate, lift the dispersant liquid upward, and leave the transmission cylinder 2 from the top of the transmission cylinder 2 and fall onto the filter plate 3 to filter and remove the gel mass. After removing the gel mass, the dispersant liquid passes through the filter plate 3 and falls into the box body 1 to prepare for mixing with the pulp. At this time, the first motor 407 drives the first gear 405 to rotate. The wheel 405 drives the second gear 406 to rotate, the second gear 406 drives the sleeve 401 to rotate, the sleeve 401 drives the connecting rod 402 to rotate, the connecting rod 402 drives the stirring rod 403 and the scraper 404 to rotate, and the pulp and the dispersant liquid are mixed. After the mixing is completed, the mixed pulp is discharged from the discharge port at the bottom of the box 1 (not shown in the figure). During the discharge process, the stirring can continue, but at this time the speed of the first motor 407 will slow down, and eventually the speed of the scraper 404 will also slow down, so that the scraper 404 can scrape off the suspended matter such as fibers attached to the side wall surface of the box 1. If a small amount of dispersant liquid remains in the transmission cylinder 2 after use, the residual dispersant liquid can be discharged from the transmission cylinder 2 by opening the sealing door 6.

[0030] In the description of the present invention, "plurality" means two or more than two, unless otherwise clearly and specifically defined.

[0031] The above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit the protection scope of the utility model. Obviously, the described embodiments are only some embodiments of the utility model, rather than all embodiments. Based on these embodiments, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model. Although the utility model has been described in detail with reference to the above embodiments, ordinary technicians in this field can still combine, add, delete or make other adjustments to the features in the various embodiments of the utility model according to the circumstances without conflict, without making creative work, so as to obtain different other technical solutions that do not deviate from the concept of the utility model in essence, and these technical solutions also belong to the scope of protection of the utility model.

Claims

1. A dispersant dosing device for papermaking, characterized in that: The invention comprises a box body (1), wherein a transmission cylinder (2) is vertically arranged in the box body (1), wherein the lower end of the transmission cylinder (2) passes through the bottom of the box body (1), and the upper end is provided with an opening, wherein an auger (7) is arranged in the transmission cylinder (2), wherein the upper end of the auger (7) passes through the top of the box body (1) and is connected to the output end of a second motor (8), wherein a filter plate (3) is arranged between the outer side of the upper end opening of the transmission cylinder (2) and the side wall of the box body (1), and a mixing component (4) is sleeved on the outer periphery of the transmission cylinder (2) below the filter plate (3).

2. The papermaking dispersant dosing device according to claim 1, characterized in that: The mixing component (4) comprises a sleeve (401), which is sleeved on the outside of the transmission cylinder (2), and the lower end of which is rotatably arranged in a groove at the bottom of the box body (1). The lower part of the transmission cylinder (2) is sleeved with a second gear (406), and the second gear (406) is meshed with the first gear (405). The center of the first gear (405) is connected to the output end of a first motor (407) that passes through the bottom of the box body (1). A plurality of connecting rods (402) are arranged on the outside of the sleeve (401), and the connecting rods (402) are divided into two layers, and the connecting rods (402) of the two layers correspond to each other one by one. A stirring rod (403) is arranged on the two corresponding connecting rods (402) above and below, and the two corresponding connecting rods (402) are connected to the scraper (404) at one end away from the sleeve (401).

3. The papermaking dispersant dosing device according to claim 2, characterized in that: The stirring rod (403) is W-shaped.

4. The papermaking dispersant dosing device according to claim 2, characterized in that: The scraper (404) is close to the side wall of the box body (1).

5. The papermaking dispersant dosing device according to claim 1, characterized in that: The filter plate (3) is arranged in a trumpet shape on the outside of the transmission cylinder (2), and the surface of the filter plate (3) is inclined from the top of the transmission cylinder (2) to the side wall of the box body (1).

6. The papermaking dispersant dosing device according to claim 5, characterized in that: An opening is provided on the side wall of the box body (1) located on the upper side of the filter plate (3), and the opening is sealed by a sealing plug (11).

7. The papermaking dispersant dosing device according to claim 2, characterized in that: The first motor (407) is installed in a mounting box (5), and the mounting box (5) is installed on the bottom of the box body (1) and the outer side wall of the transmission cylinder (2).

8. The papermaking dispersant dosing device according to claim 1, characterized in that: A feeding pipe (9) with a solenoid valve is provided on the side wall of the lower part of the transmission cylinder (2) outside the box body (1), and a sealing door (6) is provided at the bottom of the transmission cylinder (2).

9. The papermaking dispersant dosing device according to claim 1, characterized in that: A plurality of support rods (10) are provided at the bottom of the box body (1).

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