A surface sizing steaming mechanism

Abstract

The utility model relates to papermaking equipment technical field discloses a kind of surface sizing cooking mechanism, storage warehouse, continuous dissolving tank, enzyme storage tank, first digester, reaction tank, second digester, storage tank, static mixing assembly and loading station;The discharge outlet of the storage warehouse is connected with the first feed port of the continuous dissolving tank, the discharge outlet of the enzyme storage tank is connected with the second feed port of the continuous dissolving tank, the discharge outlet of the continuous dissolving tank is connected with the feed port of the first digester, the discharge outlet of the first digester is connected with the feed port of the reaction tank, the discharge outlet of the reaction tank is connected with the feed port of the second digester, the discharge outlet of the second digester is connected with the feed port of the storage tank, the discharge outlet of the storage tank is connected with the feed port of the static mixing assembly, the discharge outlet of the static mixing assembly is connected with the loading station.The utility model existing technology uneven cooking, and the problem of low efficiency of cooking.

Description

Technical Field

[0001] This utility model relates to the field of papermaking equipment technology, specifically to a surface sizing and cooking mechanism. Background Technology

[0002] Surface sizing is a key process in papermaking. It refers to applying a thin layer of sizing agent to the surface of the paper after it has been formed, using sizing equipment. This process makes the paper resistant to liquid penetration, gives it better surface properties, and improves its surface strength and internal bonding.

[0003] Currently, starch has become the most widely used surface sizing agent in papermaking due to its wide availability and low cost. Before being used in papermaking, starch usually needs to be cooked to produce a sizing agent.

[0004] Traditional cooking processes convert starch into gelatin. However, the following problems exist in this process: (1) Uneven mixing: During the high-speed rotation and mixing of starch and water, laminar flow is easily formed, with little or no eddy currents or turbulence, resulting in poor mixing between starch and water. Consequently, the starch suspension (starch suspension refers to starch particles that have not completely dissolved) is not fully mixed, and the quality of the resulting starch gelatin is unstable; (2) Uneven heating: Due to uneven mixing, the mixing speed of the materials is slow, causing the starch suspension in the lower part of the cooking mechanism to be cooked, while the starch suspension in the upper part is still in an incompletely cooked state, resulting in local overheating or insufficient gelatinization; (3) Long cooking time and high steam consumption: Due to uneven heating, the upper starch suspension mainly relies on temperature difference to transfer heat, and the heat conduction speed is slow. In order to ensure that all starch suspensions are gelatinized, the cooking time needs to be extended, thereby increasing the steam consumption. Utility Model Content

[0005] The present invention aims to provide a surface sizing and cooking mechanism to solve the problems of uneven cooking and low cooking efficiency in the prior art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a surface sizing and cooking mechanism, comprising a storage bin, a continuous dissolving tank, an enzyme storage tank, a first cooking device, a reaction tank, a second cooking device, a storage bin, a static mixing assembly, and a feeding station; The outlet of the storage tank is connected to the first inlet of the continuous dissolving tank, the outlet of the enzyme storage tank is connected to the second inlet of the continuous dissolving tank, the outlet of the continuous dissolving tank is connected to the inlet of the first cooking vessel, the outlet of the first cooking vessel is connected to the inlet of the reaction vessel, the outlet of the reaction vessel is connected to the inlet of the second cooking vessel, the outlet of the second cooking vessel is connected to the inlet of the storage tank, the outlet of the storage tank is connected to the inlet of the static mixing component, and the outlet of the static mixing component is connected to the feeding station.

[0007] The principle of this scheme is as follows: The adhesive material is first transported from the storage tank to the continuous dissolving tank. Simultaneously, the bio-enzymes in the enzyme storage tank are added to the continuous dissolving tank, along with an appropriate amount of water according to process requirements, to perform preliminary mixing and dissolution of the materials. The mixture is then transported to the first cooker, where steam is introduced to heat the mixture to the set temperature and maintain it for a certain period, allowing the starch to initially gelatinize. The pre-gelatinized adhesive solution is then transported to the reaction tank for further reaction treatment to improve its film-forming properties, water resistance, or adhesion, thereby enhancing the overall sizing effect. After the reaction is complete, the reacted adhesive solution is transported to the second cooker for secondary heating treatment, where steam is introduced again to raise the temperature to the preset temperature, ensuring complete gelatinization and achieving the required viscosity. The finished adhesive solution after cooking is then transported to the storage tank for storage, awaiting subsequent use.

[0008] A static mixing component is installed at the outlet of its storage tank. After passing through the static mixing component, the finished adhesive is transported by the feeding station to the subsequent equipment for surface application, thus completing the entire adhesive preparation and transportation process.

[0009] The advantages of this scheme are: (1) This scheme combines a continuous dissolving tank with a two-stage cooking process (first cooker + second cooker) to achieve efficient mixing, staged heating and full gelatinization of the adhesive, which significantly improves the uniformity and stability of the adhesive solution and ensures that it reaches the ideal viscosity and application performance. The first cooker focuses on basic modification and sterilization, while the second cooker can ensure stable performance.

[0010] (2) The static mixing component is used to increase the contact area and mixing degree between the components (such as adhesives, bio-enzymes, etc.), effectively eliminating uneven flow, pulsation or eddy currents in the adhesive during the transportation process, ensuring that the adhesive is stably and uniformly transported to the surface coating equipment, thereby ensuring the coating quality. At the same time, it can also avoid performance fluctuations caused by local concentration differences or component separation, ensuring the consistency of the final adhesive in terms of viscosity, film-forming properties, water resistance, etc.

[0011] Preferably, as an improvement, it further includes a storage and unloading assembly and a second filtration assembly; the storage and unloading assembly and the second filtration assembly are located between the storage tank and the loading station.

[0012] Beneficial effects: The storage and unloading assembly acts as a buffer and stabilizes the supply, ensuring uniform flow and stable pressure of the adhesive as it is transported from the storage tank to the subsequent system, preventing the application effect from being affected by flow interruptions or pulsations. The first filtration assembly removes any undissolved particles, impurities, or foreign matter that may be present, further ensuring the purity of the adhesive and thus improving the consistency and surface properties of the final applied product.

[0013] Preferably, as an improvement, the second filtration assembly includes an upper filtration assembly and a lower filtration assembly; the static mixing assembly includes a first static mixer and a second static mixer; the feeding station includes an upper roller feeding trough and a lower roller feeding trough; the first discharge port of the storage and unloading assembly is connected to the upper roller feeding trough in sequence through the upper filtration assembly and the first static mixer; and the second discharge port of the storage and unloading assembly is connected to the lower roller feeding trough in sequence through the lower filtration assembly and the second static mixer.

[0014] Beneficial Effects: This solution divides the discharge path of the storage and unloading assembly into two independent channels (upper and lower), corresponding to the upper roller feeding trough and the lower roller feeding trough, respectively. This allows for differentiated control of the glue flow rate, concentration, or performance of the upper and lower rollers to meet different glue application requirements, enhancing the system's process adaptability and control precision. The upper and lower filtration assemblies respectively perform fine filtration of the glue delivered to the upper and lower rollers, effectively removing impurities and undissolved particles, preventing blockages or equipment wear. The first and second static mixers further homogenize the glue composition in their respective paths, eliminating uneven flow and ensuring that the glue entering the upper and lower roller feeding troughs always maintains high uniformity and stability.

[0015] Preferably, as an improvement, it further includes a dissolving tank unloading assembly, a first filtration assembly, and a reaction tank unloading assembly; the dissolving tank unloading assembly and the first filtration assembly are sequentially located between the dissolving tank and the first cooker; the reaction tank unloading assembly is located between the reaction tank and the second cooker.

[0016] Beneficial effects: The dissolving tank unloading assembly ensures that the adhesive and bio-enzymes are transported to the next process at a stable flow rate after initial mixing and dissolution, avoiding process fluctuations caused by uneven feeding. The reaction tank unloading assembly ensures that the reacted adhesive solution smoothly enters the second digester, maintaining the continuity and controllability of the entire production process. The first filtration assembly performs preliminary purification of the initially dissolved adhesive solution, removing undissolved particles or impurities to prevent clogging of subsequent equipment or affecting the gelatinization effect.

[0017] Preferably, as an improvement, it also includes a metering component located between the enzyme storage tank and the connecting dissolution tank.

[0018] Beneficial effects: The metering component can quantitatively deliver and precisely control the biological enzymes output from the enzyme storage tank, ensuring that the enzyme dosage added to the dissolving tank each time is accurate.

[0019] Preferably, as an improvement, the continuous dissolving tank is provided with a continuous dissolving tank agitator for stirring, the reaction tank is provided with a reaction tank agitator for stirring, and the storage tank is provided with a storage tank agitator for stirring.

[0020] Beneficial effects: The installation of agitators in the continuous dissolving tank, reaction tank, and storage tank can continuously or periodically agitate the adhesive solution, effectively preventing the sedimentation of solid particles or the stratification of components, and maintaining the uniformity and stability of the adhesive solution's composition.

[0021] Preferably, as an improvement, the storage bin includes a hopper, a vibrating hopper, and a screw; the vibrating hopper is located below the hopper for transporting the adhesive material, and the screw is located below the vibrating hopper for controlling the amount of adhesive material used.

[0022] Beneficial effects: The vibrating hopper ensures smooth flow of the adhesive material through vibration, effectively preventing blockages or bridging caused by material agglomeration or poor flowability, and ensuring a continuous and stable flow of adhesive material into subsequent processing stages. The screw conveyor can adjust its rotation speed according to process requirements, thereby precisely controlling the output flow rate and dosage of the adhesive material, ensuring the accuracy of the mixing ratio each time, and improving the consistency and repeatability of the adhesive preparation process.

[0023] Preferably, as an improvement, it further includes a rotary feeder, a feeding station, and a fan; the discharge port of the rotary feeder is connected to the inlet of the storage bin, the feeding station is connected to the rotary feeder and located above the rotary feeder, and the fan is connected to the rotary feeder and located on the side away from the storage bin.

[0024] Beneficial effects: The feeding station is used for continuous and stable material supply, ensuring production continuity; the blower is used to provide positive or negative pressure auxiliary airflow to ensure that the rubber material enters the rotary feeder smoothly.

[0025] Preferably, as an improvement, it further includes a first dust collector and a second dust collector; the first dust collector is located above the feeding station, and the second dust collector is located above the storage bin.

[0026] Beneficial effects: The first dust collector is installed above the feeding station, which can capture the dust generated during the feeding process and prevent the dust from spreading into the air, thus ensuring the health of operators and the cleanliness of the workshop; the second dust collector is set above the storage bin, which can effectively collect the dust generated when the rubber enters the storage bin, reduce the accumulation of dust inside the equipment, prevent blockage or mechanical failure, and ensure the stable operation of the feeding system.

[0027] Preferably, as an improvement, it also includes a vapor-water separator connected to and located above the storage tank.

[0028] Beneficial effects: The steam-water separator is used to separate condensate, preventing the condensate from flowing into the storage tank and causing dilution of the adhesive, temperature fluctuations, or unstable performance.

[0029] The beneficial effects of this scheme are: (1) This scheme, through the layout of "continuous dissolution - segmented cooking - reaction control - precise feeding", not only achieves efficient dissolution, precise cooking and stable delivery of the adhesive liquid, but also performs staged purification treatment of the adhesive liquid through multi-stage filtration components (first filtration component, first filtration component) and unloading components (dissolution tank unloading component, reaction tank unloading component), effectively removing impurities and undissolved particles, preventing problems such as blockage and wear, extending the service life of equipment and improving the control of usage, thereby improving the utilization rate of adhesive liquid and reducing production costs.

[0030] (2) This solution divides the filtration, static mixing and feeding stations into functional zones according to the upper and lower rollers, and configures independent feeding channels for each zone, thereby achieving refined control of the sizing process.

[0031] (3) This solution sets up dedicated unloading and filtration components between each key process node (dissolving-cooking-reaction-re-steaming), so that the state of the adhesive solution at each stage can be independently controlled, thereby improving the system's adaptability to different formulations and different types of adhesives.

[0032] (4) This solution achieves stable delivery, effective purification and precise control of materials at each stage of adhesive preparation. It not only improves the quality of the adhesive and the application effect, but also enhances the system's process adaptability, operational safety and maintainability. Attached Figure Description

[0033] Figure 1 This is a schematic diagram of the cooking system in a surface sizing cooking apparatus provided in an embodiment of the present invention.

[0034] Figure 2 A partial schematic diagram of the cooking system in a surface sizing cooking apparatus provided in this embodiment of the present invention. Figure 1 .

[0035] Figure 3 A partial schematic diagram of the cooking system in a surface sizing cooking apparatus provided in this embodiment of the present invention. Figure 2 .

[0036] Figure 4 A partial schematic diagram of the cooking system in a surface sizing cooking apparatus provided in this embodiment of the present invention. Figure 3 .

[0037] Figure 5 A partial schematic diagram of the cooking system in a surface sizing cooking apparatus provided in this embodiment of the present invention. Figure 4 .

[0038] Figure 6 A partial schematic diagram of the cooking system in a surface sizing cooking apparatus provided in this embodiment of the present invention. Figure 5 .

[0039] Figure 7 A partial schematic diagram of the cooking system in a surface sizing cooking apparatus provided in this embodiment of the present invention. Figure 6 .

[0040] Figure 8 A partial schematic diagram of the cooking system in a surface sizing cooking apparatus provided in this embodiment of the present invention. Figure 7 .

[0041] The reference numerals in the accompanying drawings include: fan 1, rotary feeder 2, feeding station 3, hopper 301, storage bin 4, bin 401, vibrating hopper 402, screw 403, first dust collector 5, second dust collector 6, continuous dissolving tank 7, continuous dissolving tank agitator 8, enzyme storage tank 9, metering assembly 10, dissolving tank unloading assembly 11, first filter assembly 12, first cooker 13, reaction tank 14, reaction tank agitator 15, reaction tank unloading assembly 16, second cooker 17, steam-water separator 18, storage tank 19, storage tank agitator 20, storage unloading assembly 21, upper filter assembly 22, lower filter assembly 23, first static mixer 24, second static mixer 25. Detailed Implementation

[0042] The following detailed description illustrates the specific implementation method: The implementation examples are basically as follows Figure 1 , Figure 2 As shown: A surface sizing and cooking mechanism includes a storage tank 4, a continuous dissolving tank 7, an enzyme storage tank 9, a first cooker 13, a reaction tank 14, a second cooker 17, a storage tank 19, a static mixing component, and a feeding station. The outlet of storage tank 4 is connected to the first inlet of continuous dissolving tank 7, the outlet of enzyme storage tank 9 is connected to the second inlet of continuous dissolving tank 7, the outlet of continuous dissolving tank 7 is connected to the inlet of first cooker 13, the outlet of first cooker 13 is connected to the inlet of reaction tank 14, the outlet of reaction tank 14 is connected to the inlet of second cooker 17, the outlet of second cooker 17 is connected to the inlet of storage tank 19, the outlet of storage tank 19 is connected to the inlet of static mixing component, and the outlet of static mixing component is connected to feeding station.

[0043] Specifically, the cooking unit is used to mix the adhesive (such as starch) with a solvent (usually water), and then heat and stir it to fully gelatinize or dissolve it to form a homogeneous adhesive solution.

[0044] like Figure 3 As shown, the storage bin 4 comprises, from top to bottom, a hopper 401, a vibrating hopper 402, and a screw conveyor 403. Specifically, the hopper 401 has a conical structure with a tapered bottom to guide the rubber compound to fall naturally. The vibrating hopper 402 generates high-frequency micro-vibration through a vibrating motor, ensuring that the rubber compound enters the screw conveyor 403 evenly and controllably, preventing arching or material breakage. The screw conveyor 403 uses rotating spiral blades to directionally and quantitatively push the rubber compound to the inlet of the continuous dissolving tank 7. A second dust collector 6 is installed on the top of the storage bin 4 to collect dust generated when the rubber compound enters the storage bin 4, reducing dust accumulation inside the equipment, preventing blockages or mechanical failures, and ensuring stable operation of the feeding system.

[0045] A continuous dissolving tank 7 for dissolving the adhesive is installed at the bottom of the storage chamber 4. Specifically, the continuous dissolving tank 7 includes a first inlet and a second inlet, and the outlet of the storage chamber 4 is connected to the first inlet of the continuous dissolving tank 7. In addition, the continuous dissolving tank 7 is equipped with a continuous dissolving tank agitator 8 for stirring. When the adhesive and bio-enzyme enter the continuous dissolving tank 7, the continuous dissolving tank agitator 8 is activated and thoroughly stirs and mixes the adhesive and bio-enzyme, thereby promoting the uniform dissolution of the adhesive.

[0046] An enzyme storage tank 9 for storing biological enzymes (such as amylase) is installed on the left side of the continuous dissolving tank 7. The biological enzymes are used to modify the adhesive compound (such as reducing viscosity). The outlet of the enzyme storage tank 9 is connected to the first inlet of the continuous dissolving tank 7. A metering component 10 for precisely controlling the amount of biological enzyme added is installed between the continuous dissolving tank 7 and the enzyme storage tank 9 to ensure the stability of the modification effect.

[0047] like Figure 4As shown, a rotary feeder 2 for quantitatively conveying adhesive materials (such as starch) is installed on the left side of the storage bin 4. The discharge port of the rotary feeder 2 is connected to the inlet of the storage bin 4. A feeding station 3 for receiving and temporarily storing the adhesive materials to be conveyed is installed on top of the rotary feeder 2. The feeding station 3 includes a vibrating hopper 301 for receiving the adhesive materials. The discharge port of the vibrating hopper 301 is connected to the inlet of the rotary feeder 2. Through vibration, the adhesive materials slide down evenly, providing stable feeding to the rotary feeder 2 and preventing blockage or accumulation. A first dust collector 5 is installed on top of the feeding station 3, which can capture dust generated during the adhesive material feeding process, preventing dust from spreading into the air and ensuring the health of operators and the cleanliness of the workshop.

[0048] A fan 1 is installed on the left side of the rotary feeder 2 to provide airflow power, which can blow the conveyed rubber material to the rotary feeder, thereby avoiding powder blockage.

[0049] like Figure 5 As shown, a discharging assembly 11, a first filter assembly 12, and a first cooker 13 are sequentially installed on the right side of the continuous dissolving tank 7. Specifically, the outlet of the continuous dissolving tank 7 is connected to the inlet of the discharging assembly 11, the outlet of the discharging assembly 11 is connected to the inlet of the first filter assembly 12, and the outlet of the first filter assembly 12 is connected to the inlet of the first cooker 13. The discharging assembly 11 is used to transport the dissolved adhesive from the continuous dissolving tank 7 to the first filter assembly 12; the first filter assembly 12 is used to remove undissolved adhesive or impurities from the dissolved adhesive to protect downstream equipment; the first cooker 13 is used to fully gelatinize and dissolve the adhesive, forming a preliminary adhesive solution. Using "starch" as an example, because natural starch is insoluble in water at room temperature, the first cooker 13, through heating (usually 95~120℃) and heat preservation, breaks down the crystalline structure of the starch granules, causing them to absorb water, swell, and gelatinize, forming a colloidal solution (referred to as "adhesive solution"). In this embodiment, the dissolving tank unloading assembly 11 consists of two parallel dissolving tank unloading screw pumps, and the first filtration assembly 12 consists of two parallel first filters, thereby providing system stability and reliability. The parallel structure allows for simultaneous operation to improve unloading and filtration speeds, meeting the needs of continuous production, while also enabling individual operation. If one dissolving tank unloading screw pump or first filter fails, the other can still operate independently, ensuring continuous operation of the cooking system and preventing downtime due to equipment malfunctions. This effectively enhances the stability and fault tolerance of the cooking system. Furthermore, it supports the rotation of individual equipment and offline maintenance, enabling regular cleaning or repair of equipment without affecting the overall production process, thereby reducing downtime, minimizing the impact on production schedules, and further improving system reliability and ease of maintenance.

[0050] like Figure 6As shown, a reaction tank 14 is installed on the right side of the first cooker 13 for chemical modification and maturation of the initial adhesive solution after cooking. Specifically, the discharge port of the first cooker is connected to the inlet of the reaction tank 14. The reaction tank 14 is equipped with a stirrer 15 to ensure thorough mixing of the adhesive, enzymes, or other reactive components, avoiding uneven concentrations, ensuring reaction consistency, accelerating the contact frequency between the initial adhesive solutions, and improving reaction efficiency. Simultaneously, stirring enhances heat distribution and prevents temperature stratification.

[0051] A reaction tank unloading assembly 16 and a second cooker 17 are sequentially installed on the right side of the reaction tank 14. Specifically, the outlet of the reaction tank 14 is connected to the inlet of the reaction tank unloading assembly 16, and the outlet of the reaction tank unloading assembly 16 is connected to the inlet of the second cooker 17. The reaction tank unloading assembly 16 is used to precisely regulate the flow rate of the initial adhesive solution from the reaction tank 14 to the second cooker 17, ensuring stable feeding for subsequent processes. The second cooker 17 is used for high-temperature treatment (90–95°C) to inactivate the biological enzymes, terminate the reaction, and solidify the adhesive properties, as well as further balancing the enzyme inactivation effect and the adhesive quality. In this embodiment, the reaction tank unloading assembly 16 includes two parallel reaction tank 14 unloading cams.

[0052] like Figure 7 As shown, a steam-water separator 18 and a storage tank 19 are installed on the left side of the second cooker 17, with the storage tank 19 located below the steam-water separator 18. Specifically, the outlet of the second cooker 17 is connected to the inlet of the storage tank 19, and the storage tank 19 is connected to the steam-water separator 18. The steam-water separator 18 is used to remove liquid moisture, colloidal particles, or other impurities carried in the steam or high-temperature gas generated by the second cooker 17; the storage tank 19 is used for temporary storage of the finished adhesive solution. The storage tank 19 is internally equipped with a storage tank agitator 20 to prevent the adhesive solution from settling. The storage tank agitator 20 includes two sets of fan blades, each set of which has two blades symmetrically arranged.

[0053] A storage and unloading assembly 21 for controlling the flow rate of the finished adhesive is installed on the right side of the storage tank. Specifically, the outlet of the storage tank is connected to the inlet of the storage and unloading assembly 21. The storage and unloading assembly 21 is used to transport the finished adhesive to a filter for filtration. In this embodiment, the storage and unloading assembly 21 consists of three parallel storage and unloading cam pumps.

[0054] like Figure 8As shown, a second filter assembly, a static mixing assembly, and a feeding station are installed on the right side of the storage and unloading assembly 21. The second filter assembly includes an upper filter assembly 22 and a lower filter assembly 23. The static mixing assembly includes a first static mixer 24 and a second static mixer 25. The feeding station includes an upper roller feed trough and a lower roller feed trough. Both the upper filter assembly 22 and the lower filter assembly 23 are used to filter the finished adhesive solution to ensure that the solution is free of impurities before being conveyed to the feeding structure. The first static mixer 24 and the second static mixer 25 are used to ensure more thorough mixing. The first outlet (i.e., the upper outlet) of the storage and unloading assembly 21 is connected to the upper roller feed trough through the upper filter assembly 22 and the first static mixer 24. The second outlet (i.e., the upper outlet) of the storage and unloading assembly 21 is connected to the lower roller feed trough through the lower filter assembly 23 and the second static mixer 25. Specifically, the first discharge port of the storage and unloading assembly 21 is connected to the inlet of the upper filter assembly 22, the discharge port of the upper filter assembly 22 is connected to the inlet of the first static mixer 24, and the discharge port of the first static mixer 24 is connected to the upper roller feed trough; the second discharge port of the storage and unloading assembly 21 is connected to the inlet of the lower filter assembly 23, the discharge port of the lower filter assembly 23 is connected to the inlet of the second static mixer 25, and the discharge port of the second static mixer 25 is connected to the lower roller feed trough. In this embodiment, the upper filter assembly 22 consists of two filters connected in parallel, and the lower filter assembly 23 consists of two filters connected in parallel.

[0055] The specific implementation process is as follows: The adhesive compound is first conveyed sequentially through the feeding station 3, rotary feeder 2, and storage bin 4 to the continuous dissolving tank 7. Simultaneously, the bio-enzyme in the enzyme storage tank 9 is precisely added to the continuous dissolving tank 7 via the metering component 10, along with an appropriate amount of water. Under the action of the continuous dissolving tank agitator 8, preliminary mixing and dissolution occur to prevent the adhesive compound from clumping. Subsequently, the mixture passes sequentially through the dissolving tank unloading component 11 and the first filter component 12 to remove impurities and undissolved particles before being conveyed to the first cooker 13. Steam is introduced into the first cooker 13 to heat the mixture to the gelatinization temperature, causing preliminary gelatinization. Next, the preliminarily gelatinized adhesive is conveyed to the reaction tank 14 for further reaction and stirring, and dilution water is added appropriately according to process requirements to adjust the adhesive concentration. Afterward, the adhesive is conveyed to the second cooker 17 via the reaction tank unloading component 16, where steam is again introduced to heat it to the gelatinization temperature, ensuring complete gelatinization and achieving the required viscosity. Finally, the cooked adhesive solution is transferred to storage tank 19 for storage, and continuously stirred by storage tank agitator 20 to prevent solid components from settling. At the same time, water in the adhesive solution is effectively separated by steam-water separator 18 to improve the stability of the adhesive solution.

[0056] When it is necessary to apply adhesive, the finished adhesive liquid stored in the storage tank 19 is transported to the upper and lower roller feeding tanks through the following two independent paths: one path of adhesive liquid is output through the first outlet of the storage unloading component 21, passes through the upper filter component 22 and the first static mixer 24 in sequence, and is finally transported to the upper roller feeding tank. The other liquid adhesive is output through the second outlet of the storage and unloading assembly 21, passes through the lower filter assembly 23 and the second static mixer 25 in sequence, and finally flows into the lower roller feed trough.

[0057] In summary, this solution constructs a complete adhesive cooking system through the layout of the cooking mechanism. It not only achieves efficient dissolution, precise cooking, and stable delivery of the adhesive, but also improves the utilization rate of the adhesive and reduces production costs through multi-stage filtration design. Specifically, (1) multi-stage stirring (continuous dissolving tank stirrer 8, reaction tank stirrer 15, storage tank stirrer 20) and filtration mechanism (first filter component 12, upper filter component 22, lower filter component 23) ensure that the adhesive composition is uniform and clean, avoiding problems such as uneven coating and paper defects caused by sedimentation, clumping, or impurities, thereby improving the quality of the finished product; (2) parallel design (storage unloading component 21, first filter component 12, etc.) not only meets the flexible switching under different working conditions, but also reserves space for subsequent expansion and upgrading; (3) "first cooker 13 pregelatinization + second cooker 17 complete gelatinization" ensures that the adhesive reacts fully, improving viscosity and uniformity.

[0058] The above descriptions are merely embodiments of this utility model. Commonly known technical solutions and / or characteristics are not described in detail here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the technical solution of this utility model. These modifications and improvements should also be considered within the scope of protection of this utility model, and will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A surface sizing and cooking mechanism, characterized in that: It includes a storage tank, a continuous dissolving tank, an enzyme storage tank, a first cooking vessel, a reaction vessel, a second cooking vessel, a storage tank, a static mixing assembly, and a feeding station; The outlet of the storage tank is connected to the first inlet of the continuous dissolving tank, the outlet of the enzyme storage tank is connected to the second inlet of the continuous dissolving tank, the outlet of the continuous dissolving tank is connected to the inlet of the first cooking vessel, the outlet of the first cooking vessel is connected to the inlet of the reaction vessel, the outlet of the reaction vessel is connected to the inlet of the second cooking vessel, the outlet of the second cooking vessel is connected to the inlet of the storage tank, the outlet of the storage tank is connected to the inlet of the static mixing component, and the outlet of the static mixing component is connected to the feeding station.

2. The surface sizing and cooking mechanism according to claim 1, characterized in that: It also includes a storage and unloading assembly and a second filtration assembly; the storage and unloading assembly and the second filtration assembly are located between the storage tank and the loading station.

3. The surface sizing and cooking mechanism according to claim 2, characterized in that: The second filtration assembly includes an upper filtration assembly and a lower filtration assembly; the static mixing assembly includes a first static mixer and a second static mixer; the feeding station includes an upper roller feeding trough and a lower roller feeding trough; the first discharge port of the storage and unloading assembly is connected to the upper roller feeding trough in sequence through the upper filtration assembly and the first static mixer; the second discharge port of the storage and unloading assembly is connected to the lower roller feeding trough in sequence through the lower filtration assembly and the second static mixer.

4. The surface sizing and cooking mechanism according to claim 1, characterized in that: It also includes a dissolving tank unloading assembly, a first filtration assembly, and a reaction tank unloading assembly; the dissolving tank unloading assembly and the first filtration assembly are located sequentially between the dissolving tank and the first cooker; the reaction tank unloading assembly is located between the reaction tank and the second cooker.

5. The surface sizing and cooking mechanism according to claim 1, characterized in that: It also includes a metering component, which is located between the enzyme storage tank and the connecting dissolution tank.

6. The surface sizing and cooking mechanism according to claim 1, characterized in that: The continuous dissolving tank is equipped with a continuous dissolving tank agitator for stirring, the reaction tank is equipped with a reaction tank agitator for stirring, and the storage tank is equipped with a storage tank agitator for stirring.

7. The surface sizing and cooking mechanism according to claim 1, characterized in that: The storage bin includes a hopper, a vibrating hopper, and a screw conveyor; the vibrating hopper is located below the hopper for transporting the rubber compound, and the screw conveyor is located below the vibrating hopper for controlling the amount of rubber compound used.

8. The surface sizing and cooking mechanism according to claim 1, characterized in that: It also includes a rotary feeder, a feeding station, and a fan; the discharge port of the rotary feeder is connected to the inlet of the storage bin, the feeding station is connected to the rotary feeder and located above the rotary feeder, and the fan is connected to the rotary feeder and located on the side away from the storage bin.

9. The surface sizing and cooking mechanism according to claim 1, characterized in that: It also includes a first dust collector and a second dust collector; the first dust collector is located above the feeding station, and the second dust collector is located above the storage bin.

10. A surface sizing and cooking mechanism according to claim 1, characterized in that: It also includes a vapor-water separator, which is connected to and located above the storage tank.

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