A surface sizing agent preparation and preparation apparatus

Abstract

The application belongs to the technical field of sizing agent preparation, and relates to a surface sizing agent preparation and preparation equipment. A brewing barrel is connected with a storage barrel. The brewing barrel comprises a body and a stirring device connected with the body. An installation opening is arranged at the upper end of the body. A water inlet is arranged on the body. The water inlet is connected with a water tank. A feeder for feeding solid ferrous sulfate is connected with the installation opening. A conveying opening is arranged at the lower end of the body. The conveying opening is connected with the storage barrel through a conveying pipe. A filter, a screw pump and a check valve are arranged on the conveying pipe. Steam holes, a feeding opening and a discharging opening are arranged on the storage barrel. The steam holes are connected with a steam generator. The feeding opening is connected with the conveying pipe. The discharging opening is connected with a starch supply barrel. Compared with the prior art, the application replaces AKD with ferrous sulfate, thereby reducing the production cost.

Description

Technical Field

[0001] This invention relates to the field of sizing agent preparation technology, and more specifically, to a surface sizing agent preparation and preparation equipment. Background Technology

[0002] Hydrophobicity is one of the most important indicators for corrugated base paper manufacturers. With the improvement of papermaking technology, the requirements for paper surface properties, strength, and water resistance are gradually increasing. Therefore, the papermaking industry is constantly exploring new surface sizing technologies. Currently, PM7 uses a combination of internal AKD addition and surface sizing, but the internal AKD addition is costly (2.3 yuan / kg), increasing production costs. Summary of the Invention

[0003] To address the shortcomings of existing technologies, the present invention aims to provide a surface sizing agent preparation method and equipment that reduces the cost of surface sizing agents while ensuring that the hydrophobic properties of paper are not reduced.

[0004] To achieve the above objectives, the present invention provides the following technical solution:

[0005] A method for preparing a surface sizing agent, comprising material preparation, soaking, and neutralization / stirring.

[0006] Step 1: Material preparation, including solid ferrous sulfate, epoxy resin, epoxy ester, and calcium carbonate.

[0007] Solid ferrous sulfate 37%, epoxy resin 18%, epoxy ester 19%, and calcium carbonate 26%;

[0008] Step 2: Soaking. Place solid ferrous sulfate in a soaking tank and mix to produce a ferrous sulfate solution. Then mix the ferrous sulfate solution with other solutions.

[0009] Step 3: Neutralization and stirring. The prepared raw materials are classified and placed into the preparation equipment in sequence. They are added sequentially through the storage tank and stirred at a uniform speed. First, 37% solid ferrous sulfate and 18% epoxy resin are mixed, and then 19% epoxy ester and 26% calcium carbonate are added in sequence.

[0010] The preparation equipment includes a foaming tank and a storage tank.

[0011] The present invention is further configured such that: after mixing the solid ferrous sulfate 37%, epoxy resin 18%, epoxy ester 19% and calcium carbonate 26%, starch solution is added, with the starch solution accounting for 42% of the total amount.

[0012] The invention is further configured such that: the brewing tank is connected to the storage tank; the brewing tank includes a main body and a stirring device connected to the main body; and an installation port is provided at the upper end of the main body.

[0013] The main body is also equipped with a water inlet, which connects to a water tank. An installation port connects to a feeder for adding solid ferrous sulfate.

[0014] The lower end of the main body has a conveying port, which is connected to the storage tank via a conveying pipe. The conveying pipe is equipped with a filter, a screw pump, and a check valve.

[0015] The storage tank is equipped with a steam hole, a feed inlet, and a discharge outlet. The steam hole is connected to a steam generator, the feed inlet is connected to a conveying pipe, and the discharge outlet is connected to a starch supply tank.

[0016] The present invention is further configured such that: the stirring device includes a stirring roller and a crushing roller, an adjusting component is provided between the stirring roller and the brewing tank, a groove is provided on the inner wall of the brewing tank corresponding to the adjusting component, the adjusting component is placed in the groove, a plurality of crushing teeth are provided on the outer walls of the stirring roller and the crushing roller, the crushing teeth mesh with each other, a rotary motor and a rotating shaft are respectively provided at both ends of the stirring roller, the crushing roller is rotatably connected to the brewing tank, a protruding tooth is provided at one end of the crushing roller, and a gear that meshes with the protruding tooth is provided on the stirring roller.

[0017] The present invention is further configured such that: the adjustment component has two sets, both sets of adjustment components are placed on the inner wall of the foaming tank, the adjustment component includes a limiting plate, a stepper motor and a mounting plate, the limiting plate is provided with an arc-shaped groove, the mounting plate is provided with a protrusion, the protrusion can move in the arc-shaped groove, the other end of the protrusion is connected to a stirring roller, the stirring roller and the crushing roller are provided with cavities, and the cavities are provided with extension mechanisms.

[0018] The present invention is further configured such that: the extension mechanism includes a connecting rod and a plurality of electric telescopic rods, the two ends of the connecting rod are connected to the two ends of the inner wall of the cavity, one end of the electric telescopic rod is connected to the outer wall of the connecting rod, the connecting rod is provided with an electrical wire groove, a charging cable is provided in the electrical wire groove, the charging cable is electrically connected to the electric telescopic rod, one end of the connecting rod is provided with a USB interface, a sealing plate is provided on the USB interface, and a mating interface is provided on the outer wall of the foaming barrel, the mating interface being located at the center of the diameter of the limiting plate.

[0019] The invention is further configured such that: the outer wall of the stirring roller has a plurality of windows through which the output ends of the electric telescopic rods extend; a sealing cover is hinged to the window; the sealing cover is connected to the side wall of the window via an electromagnet; a control button is provided on the inner wall of the sealing cover; the control button controls the energization of the electromagnet; the electromagnet is placed on the end face of the sealing cover; and the electromagnet is electrically connected to the charging cable.

[0020] The present invention is further configured such that: one end of the stirring roller is provided with an opening, and a dryer is provided on the outer wall of the foaming tank; one end of the dryer is connected to an air inlet pipe, and the other end of the air inlet pipe can extend into the opening.

[0021] The present invention is further configured such that: the feeder has a placement cavity inside, a feed port is opened on the upper end face of the feeder, a discharge port is opened on the lower end face of the feeder, an adjuster is provided on the discharge port, the adjuster includes an adjustment plate and a drive motor, the drive motor is connected to the inner wall of the discharge port, the output end of the drive motor is rotatably connected to the adjustment plate, and the adjustment plate is hinged to the inner wall of the discharge port.

[0022] The present invention is further configured such that: the rotary motor is provided with a housing, and the USB interface is placed on the housing.

[0023] Compared with the shortcomings of the prior art, the beneficial effects of the present invention are as follows:

[0024] By replacing AKD with ferrous sulfate, production costs are reduced. Furthermore, since liquid ferrous sulfate is susceptible to temperature fluctuations due to transportation distance, long-term storage, and environmental factors, affecting its effectiveness, this solution uses solid ferrous sulfate, allowing for simultaneous preparation and use to avoid these problems. An insulated storage tank is added before the addition point. The prepared ferrous sulfate solution is delivered to the storage tank, and the steam usage is controlled according to the set temperature to maintain a constant temperature. Moreover, the mixing and crushing processes are integrated within the preparation tank, further saving production costs. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the structure of an embodiment of the present invention;

[0026] Figure 2 This is a schematic diagram of the pulverization state according to an embodiment of the present invention;

[0027] Figure 3 This is a schematic diagram of the static state according to an embodiment of the present invention;

[0028] Figure 4 This is a schematic diagram of the charging state according to an embodiment of the present invention;

[0029] Figure 5 This is a schematic diagram of the stirring state according to an embodiment of the present invention;

[0030] Figure 6 This is a schematic diagram of the stirring roller structure according to an embodiment of the present invention;

[0031] Figure 7 This is a schematic diagram of the limiting plate structure according to an embodiment of the present invention.

[0032] 1. Brewing tank; 2. Storage tank; 3. Stirring device; 4. Mounting port; 5. Water inlet; 6. Water tank; 7. Feeder; 8. Conveying port; 9. Conveying pipe; 10. Filter; 11. Screw pump; 12. Check valve; 13. Steam generator; 14. Stirring roller; 15. Crushing roller; 16. Crushing teeth; 17. Rotary motor; 18. Convex teeth; 19. Gear; 20. Limiting plate; 21. Stepper motor; 22. Mounting plate; 22. Arc groove; 23. Protrusion; 24. Cavity; 25. Extension mechanism; 26. Connecting rod; 27. Electric telescopic rod; 28. Wire trough; 29. ​​Sealing cover; 30. Placement cavity; 31. Discharge port; 32. Adjusting plate; 33. Drive motor; 34. Detailed Implementation

[0033] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0034] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention 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. Therefore, they should not be construed as limitations on this invention.

[0035] like Figures 1 to 7 As shown,

[0036] The surface sizing agent preparation and preparation equipment includes the following steps: material preparation, soaking, and neutralization and stirring.

[0037] Step 1: Material preparation, including solid ferrous sulfate, epoxy resin, epoxy ester, and calcium carbonate.

[0038] Solid ferrous sulfate 37%, epoxy resin 18%, epoxy ester 19%, and calcium carbonate 26%;

[0039] Step 2: Soaking. Place solid ferrous sulfate in soaking tank 1 and mix to produce ferrous sulfate solution. Then mix the ferrous sulfate solution with other solutions.

[0040] Step 3: Neutralization and stirring. The prepared raw materials are classified and placed into the preparation equipment in sequence. They are added sequentially through the storage tank and stirred at a uniform speed. First, 37% solid ferrous sulfate and 18% epoxy resin are mixed, and then 19% epoxy ester and 26% calcium carbonate are added in sequence.

[0041] After mixing 37% solid ferrous sulfate, 18% epoxy resin, 19% epoxy ester and 26% calcium carbonate, starch solution is added, with the starch solution accounting for 42% of the total.

[0042] Ferrous sulfate can improve the application effect of solid adhesives, epoxy resin can improve the initial tack, heat resistance and hydrolytic stability of adhesives, epoxy ester can make adhesives more viscous, and calcium carbonate can improve the impact resistance of materials.

[0043] The preparation equipment includes a foaming tank 1 and a storage tank 2. The foaming tank 1 is used to dissolve solid ferrous sulfate, and the storage tank 2 is used to keep the foamed ferrous sulfate warm and stored.

[0044] The outer wall of the brewing tank 1 is also equipped with a control panel, which is used for control.

[0045] The frothing tank 1 is connected to the storage tank 2. The frothing tank 1 includes a main body and a stirring device 3 connected to the main body. The upper end of the main body has an installation port 4 and a water inlet 5. The water inlet 5 is connected to a water tank 6. The installation port 4 is connected to a feeder 7 for adding solid ferrous sulfate. The feeder 7 has a placement chamber 31 inside. The upper end face of the feeder 7 has a feeding port, and the lower end face of the feeder 7 has a discharging port 32. The discharging port 32 is equipped with an regulator, which includes an adjustment plate 33 and a drive motor 34. The drive motor 34 is connected to the inner wall of the discharging port 32. The output end of the drive motor 34 is rotatably connected to the adjustment plate 33. The adjustment plate 33 is hinged to the inner wall of the discharging port 32. The operator puts the solid ferrous sulfate into the placement chamber 31 in advance, and lifts the adjustment plate 33 by the drive motor 34, so that the sulfuric acid liquid falls into the frothing tank 1. It can be controlled by the control panel and no manual addition is required.

[0046] The lower end of the main body is provided with a conveying port 8, which is connected to the storage tank 2 through a conveying pipe 9. The conveying pipe 9 is provided with a filter 10, a screw pump 11 and a check valve 12. The storage tank 2 is provided with a steam hole, a feed inlet and a discharge port 32. The steam hole is connected to a steam generator 13, the feed inlet is connected to the conveying pipe 9, and the discharge port 32 is connected to a starch feeding tank. The prepared ferrous sulfate solution is conveyed into the storage tank 2 and kept warm by steam.

[0047] The stirring device 3 includes a stirring roller 14 and a crushing roller 15. An adjustment component is provided between the stirring roller 14 and the brewing tank 1. A groove is opened on the inner wall of the brewing tank 1 corresponding to the adjustment component. The adjustment component is placed in the groove. Several crushing teeth 16 are provided on the outer walls of the stirring roller 14 and the crushing roller 15. The crushing teeth 16 mesh with each other and crush the solid ferrous sulfate through the crushing teeth 16, so that it dissolves faster.

[0048] The stirring roller 14 is equipped with a rotary motor 17 and a rotating shaft at both ends. The rotary motor 17 is equipped with a housing, and the USB interface is placed on the housing. The crushing roller 15 is rotatably connected to the foaming tank 1. One end of the crushing roller 15 is equipped with a tooth 18. The stirring roller 14 is equipped with a gear 19 that meshes with the tooth 18. The crushing roller 15 is driven to rotate by the stepper motor 21. Only one power source is needed, which saves costs.

[0049] The adjustment assembly has two sets, both of which are placed on the inner wall of the foaming tank 1. The adjustment assembly includes a limiting plate 20, a stepper motor 21, and a mounting plate 22. The limiting plate 20 has an arc-shaped groove 23, and the mounting plate 22 has a protrusion 24. The protrusion 24 can move within the arc-shaped groove 23. The other end of the protrusion 24 is connected to the stirring roller 14. The stirring roller 14 and the crushing roller 15 have a cavity 25. The cavity 25 has an extension mechanism 26. The stepper motor 21 drives the mounting plate 22 to rotate, and the stirring roller 14 is connected to the mounting plate 22. During the rotation, the position of the protrusion 24 in the arc-shaped groove 23 changes, thereby changing the position of the stirring roller 14.

[0050] The stirring roller 14 has an opening at one end, and a dryer is provided on the outer wall of the foaming tank 1. One end of the dryer is connected to an air inlet pipe, and the other end of the air inlet pipe can extend into the opening to facilitate drying the inside of the stirring roller 14.

[0051] The extension mechanism 26 includes a connecting rod 27 and several electric telescopic rods 28. The two ends of the connecting rod 27 are connected to the two ends of the inner wall of the cavity 25. One end of the electric telescopic rod 28 is connected to the outer wall of the connecting rod 27. The connecting rod 27 has a wire groove 29 inside, and a charging cable is installed in the wire groove 29. The charging cable is electrically connected to the electric telescopic rod 28. One end of the connecting rod 27 has a USB interface, and a sealing plate is installed on the USB interface. The outer wall of the foaming tank 1 has a mating interface, which is located at the center of the diameter of the limiting plate 20. The outer wall of the stirring roller 14 has several windows through which the output ends of the electric telescopic rods 28 extend. A sealing cover 30 is hinged to the window. The sealing cover 30 is connected to the side wall of the window through an electromagnet. The inner wall of the sealing cover 30 has a control button, which controls the energization of the electromagnet. The electromagnet is placed on the end face of the sealing cover 30 and is electrically connected to the charging cable.

[0052] By controlling the extension of the electric telescopic rod 28 to contact the control button, the electromagnet is de-energized, the sealing cover 30 is opened, and the output end of the electric telescopic rod 28 extends to the outer wall of the stirring roller 14, so that the peripheral wall of the stirring roller 14 has fan blades. Then, during the rotation of the stirring roller 14, the solution in the foaming tank 1 is stirred to make it fully dissolved.

[0053] Working principle: The operator first puts solid ferrous sulfate into the placement chamber 31 of the feeder 7, then installs the feeder 7 on the installation port 4, and then drives the drive motor 34 to move, opening the adjusting plate 33. At this time, the solid ferrous sulfate falls into the foaming tank 1. The ferrous sulfate first falls onto the crushing roller 15 and the stirring roller 14. When crushing is required, the stirring roller 14 is placed at the upper end of the arc groove 23. The stirring roller 14 can contact the crushing roller 15 at this position. Then, the rotary motor 17 is driven to rotate through the control panel, which drives the stirring roller 14 to rotate. Since the gear 19 on the stirring roller 14 meshes with the convex tooth 18 on the crushing roller 15, it drives the crushing roller 15 to rotate together. The outer walls of the crushing roller 15 and the stirring roller 14 squeeze each other, crushing the solid ferrous sulfate.

[0054] After the crushing process is completed, the stepper motor 21 drives the mounting plate 22 to rotate, thereby moving the stirring roller 14. When the stirring roller 14 is moved to the middle position of the arc groove 23, the USB interface overlaps with the docking interface, and charging can be performed at this time. Continue moving until the stirring roller 14 is moved to the lowest point of the arc groove 23, so that the stirring roller 14 comes into contact with the liquid. Then, the rotary motor 17 rotates to stir the solution. The stirred solution is then transferred to the storage tank 2.

[0055] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any ordinary changes and substitutions made by those skilled in the art within the scope of the technical solution of the present invention should be included within the protection scope of the present invention.

Claims

1. An apparatus for a method of preparing a surface sizing agent, characterized in that: The method for preparing the surface sizing agent includes material preparation, soaking, and neutralization / stirring. Step 1: Material preparation, including solid ferrous sulfate, epoxy resin, epoxy ester, and calcium carbonate. Solid ferrous sulfate 37%, epoxy resin 18%, epoxy ester 19%, and calcium carbonate 26%; Step 2: Soaking. Solid ferrous sulfate is placed in a soaking tank (1) and mixed to produce a ferrous sulfate solution. The ferrous sulfate solution is then mixed with other solutions. Step 3: Neutralize and stir. The prepared raw materials are classified and placed into the preparation equipment in sequence. They are added sequentially through the storage tank and stirred at a uniform speed. First, 37% solid ferrous sulfate and 18% epoxy resin are mixed, and then 19% epoxy ester and 26% calcium carbonate are added in sequence. The equipment includes a brewing tank (1) and a storage tank (2), which are connected. The brewing tank (1) includes a main body and a stirring device (3) connected to the main body. The stirring device (3) includes a stirring roller (14) and a crushing roller (15). An adjustment component is provided between the stirring roller (14) and the brewing tank (1). A groove is provided on the inner wall of the brewing tank (1) corresponding to the adjustment component. The adjustment component is placed in the groove. A number of crushing teeth (16) are provided on the outer walls of the stirring roller (14) and the crushing roller (15). The crushing teeth (16) mesh with each other. A rotary motor (17) and a rotating shaft are provided at both ends of the stirring roller (14). The crushing roller (15) is rotatably connected to the brewing tank (1). A protruding tooth (18) is provided at one end of the crushing roller (15). A gear (19) meshing with the protruding tooth (18) is provided on the stirring roller (14). The adjustment assembly has two sets, both of which are placed on the inner wall of the foaming tank (1). The adjustment assembly includes a limiting plate (20), a stepper motor (21), and a mounting plate (22). The limiting plate (20) has an arc groove (23), and the mounting plate (22) has a protrusion (24). The protrusion (24) can move in the arc groove (23). The other end of the protrusion (24) is connected to the stirring roller (14). The stirring roller (14) and the crushing roller (15) have cavities (25), and the cavities (25) have extension mechanisms (26).

2. The apparatus for a method of preparing a surface sizing agent according to claim 1, characterized in that: The mixture of 37% solid ferrous sulfate, 18% epoxy resin, 19% epoxy ester and 26% calcium carbonate is then added to a starch solution, which accounts for 42% of the total volume.

3. The apparatus for a method of preparing a surface sizing agent according to claim 2, characterized in that: The upper end of the main body is provided with an installation port (4). The main body is also provided with a water inlet (5), which is connected to the water tank (6). The installation port (4) is connected to a feeder (7) for adding solid ferrous sulfate. The lower end of the main body is provided with a conveying port (8), which is connected to the storage tank (2) through a conveying pipe (9). The conveying pipe (9) is provided with a filter (10), a screw pump (11) and a check valve (12). The storage tank (2) is provided with a steam hole, a feed inlet and a discharge port (32). The steam hole is connected to a steam generator (13), the feed inlet is connected to a conveying pipe (9), and the discharge port (32) is connected to a starch supply tank.

4. The apparatus for a method of preparing a surface sizing agent according to claim 3, characterized in that: The extension mechanism (26) includes a connecting rod (27) and several electric telescopic rods (28). The two ends of the connecting rod (27) are connected to the two ends of the inner wall of the cavity (25). One end of the electric telescopic rod (28) is connected to the outer wall of the connecting rod (27). The connecting rod (27) is provided with a wire groove (29). A charging cable is provided in the wire groove (29). The charging cable is electrically connected to the electric telescopic rod (28). One end of the connecting rod (27) is provided with a USB interface. A sealing plate is provided on the USB interface. The outer wall of the foaming barrel (1) is provided with a mating interface. The mating interface is located at the center of the diameter of the limiting plate (20).

5. The apparatus for a method of preparing a surface sizing agent according to claim 4, characterized in that: The outer wall of the stirring roller (14) has several windows with the output ends of the electric telescopic rods (28) extending out. A sealing cover (30) is hinged on the window. The sealing cover (30) is connected to the side wall of the window by an electromagnet. The inner wall of the sealing cover (30) is provided with a control button. The electromagnet is energized by the control button. The electromagnet is placed on the end face of the sealing cover (30) and is electrically connected to the charging line.

6. The apparatus for a method of preparing a surface sizing agent according to claim 5, characterized in that: The stirring roller (14) has an opening at one end, and the outer wall of the foaming tank (1) is equipped with a dryer. One end of the dryer is connected to an air inlet pipe, and the other end of the air inlet pipe can extend into the opening.

7. The apparatus for a method of preparing a surface sizing agent according to claim 6, characterized in that: The feeder (7) has a placement cavity (31) inside. The feeder (7) has a feeding port on its upper end face and a discharging port (32) on its lower end face. The discharging port (32) is equipped with an adjuster, which includes an adjusting plate (33) and a drive motor (34). The drive motor (34) is connected to the inner wall of the discharging port (32). The output end of the drive motor (34) is rotatably connected to the adjusting plate (33). The adjusting plate (33) is hinged to the inner wall of the discharging port (32).

8. The apparatus for a method of preparing a surface sizing agent according to claim 7, characterized in that: The rotary motor (17) is provided with a housing, and the USB interface is placed on the housing.

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