Apparatus for preparing petroleum resin-modified rosin resin dispersion and method of use

Abstract

This application discloses a method for preparing a petroleum resin-modified rosin resin dispersion, belonging to the technical field of petroleum resin-modified rosin resin dispersion preparation. The preparation equipment includes a pulverizing cylinder, with a feed inlet connected to the upper part of the side wall of the pulverizing cylinder. A discharge roller is rotatably connected to the end of the discharge pipe near the pulverizing cylinder via a first rotating shaft. In the process of preparing the petroleum resin-modified rosin resin dispersion, this invention can fully pulverize the required rosin raw materials into uniformly sized rosin particles. This ensures not only the uniformity of the pulverized rosin raw materials during subsequent heating and melting but also effectively shortens the melting time, thereby reducing the preparation time of the petroleum resin-modified rosin resin dispersion and improving the processing efficiency.

Description

Technical Field

[0001] This application relates to the field of preparation technology of petroleum resin modified rosin resin dispersion, and more specifically, to an apparatus for preparing petroleum resin modified rosin resin dispersion and a method for using it. Background Technology

[0002] Petroleum resins, named for their origin as petroleum derivatives, are thermoplastic resins produced from the C5 and C9 fractions of petroleum cracking through pretreatment, polymerization, and distillation. Rosin resin, made from rosin as a raw material, undergoes a series of reactions to achieve high softening point, high viscosity, and better oxidation resistance. It also exhibits complete resistance to crystallization in its liquid state or solution. Resin dispersions are widely used in water-based adhesives to impart specific properties. A resin dispersion is a stable, heterogeneous system of resin droplets in water.

[0003] Existing technology publication CN104293252B discloses a petroleum resin modified rosin resin dispersion and its preparation method. This invention comprises the following components in parts by weight: 470-500 parts rosin; 20-25 parts maleic anhydride; 1.2-1.8 parts nonylphenol sulfide oligomer; 9-11 parts propylene glycol; 120-135 parts petroleum resin; 1.5-1.8 parts 0.5 mol / L potassium hydroxide aqueous solution; 60-90 parts hydrophilic reagent; and 550-600 parts hot water. Compared with the prior art, this invention uses a reverse process to disperse the resin into a dispersion of 0.15 μm-1 μm in size. This dispersion is then formulated with rubber latex, carboxylated styrene-butadiene latex, or acrylic latex to form an aqueous adhesive, exhibiting good initial tack, peel strength, and holding power. Furthermore, the preparation method of the petroleum resin modified rosin resin dispersion includes the following steps:

[0004] A. Crush rosin and put it into a reaction vessel. Heat it to melt under CO2 protection, then start the stirring system. When the temperature reaches 190℃~195℃, add maleic anhydride and keep it at 195℃~210℃ for 1.5h~2.5h.

[0005] B. After step A, under stirring conditions, the above-mentioned nonylphenol sulfide oligomer, propylene glycol, petroleum resin and 0.5 mol / L potassium hydroxide aqueous solution are added to the reaction vessel. Then the temperature is raised to 260℃~285℃ for heat preservation esterification, and its acid value is continuously measured.

[0006] C. When the acid value of the reactants in the reactor of step B is ≤130mgKOH / g, cool down to 100℃~150℃, add the hydrophilic reagent, then cool down to 100℃~105℃ and keep warm for 10min. Then increase the stirring speed to 600r / min~800r / min, add hot water at 90℃~98℃, and cool down to 90℃~98℃ and keep warm for 1min~5min. Then reduce the stirring speed to 50r / min~150r / min and quickly discharge the material, so that the material can be rapidly cooled to below 40℃ within 10min and filtered.

[0007] While the aforementioned existing technical solutions can achieve the relevant beneficial effects through their structure, they still have the following drawbacks: When preparing petroleum resin-modified rosin resin dispersions and pulverizing solid rosin, the existing technology struggles to fully pulverize the rosin into powders of uniform particle size. This results in the uneven particle size of the pulverized rosin particles being placed into the reactor. Due to the difference in volume between the pulverized solid rosin particles, larger rosin particles melt more slowly, while smaller ones melt quickly. To ensure complete dissolution of the rosin, the melting time must be increased, which undoubtedly reduces the processing efficiency of preparing petroleum resin-modified rosin resin dispersions.

[0008] In view of this, we propose a method for preparing petroleum resin modified rosin resin dispersion. Summary of the Invention

[0009] Technical problems to be solved

[0010] The purpose of this application is to provide a method for preparing a petroleum resin modified rosin resin dispersion, which solves the technical problems mentioned in the background art.

[0011] This application provides a method for preparing a petroleum resin modified rosin resin dispersion. The method for preparing the petroleum resin modified rosin resin dispersion is implemented using a preparation device for the petroleum resin modified rosin resin dispersion. The preparation device for the petroleum resin modified rosin resin dispersion includes a pulverizing cylinder, a top cover that is sealed and fixedly connected to the top opening of the pulverizing cylinder, a pulverizing shaft that is rotatably connected to the bottom of the top cover, a pulverizing blade connected to the pulverizing shaft, and a power motor connected to the top of the top cover, and the output shaft of the power motor is connected to the top of the pulverizing shaft.

[0012] The upper part of the side wall of the crushing cylinder is connected to the feed port, and the bottom of the crushing cylinder is connected to the discharge pipe. The end of the discharge pipe near the crushing cylinder is rotatably connected to the discharge roller through the first rotating shaft. Multiple distribution plates are evenly connected on the side wall of the discharge roller. The side wall of the discharge pipe is connected to the first servo reduction motor at the position corresponding to the first rotating shaft, and the output shaft of the first servo reduction motor is connected to the end of the first rotating shaft.

[0013] A double roll crusher is installed below the discharge pipe, and the bottom end of the discharge pipe is connected to the feed inlet of the double roll crusher.

[0014] A filter cylinder is connected to the discharge port at the bottom of the double roll crusher. The filter cylinder is equipped with a filter component that can filter and screen the rosin powder after it has been crushed by the double roll crusher.

[0015] The bottom of the filter cartridge is evenly connected to multiple powder inlets.

[0016] As an optional solution to the technical solution in this application, the discharge pipe has a cuboid structure, and its inner cavity also has a cuboid structure.

[0017] The spacing between the front and rear ends of the material distribution plate is the same as the spacing between the front and rear ends of the inner cavity of the discharge pipe.

[0018] As an optional solution to the technical solution of this application, the filter component includes a filter plate that is slidably connected to the inner cavity of the filter cylinder, a first sliding inclined platform is connected to the middle of the top surface of the filter plate, and a second sliding inclined platform is connected to both the left and right sides of the top surface of the filter plate.

[0019] Multiple vertical filter holes are evenly opened at the top of the filter plate between the first and second material sliding inclined platforms.

[0020] The bottom of the filter plate is equipped with an in-hole actuator at the position corresponding to each vertical filter hole to remove the crushed rosin particles that are blocked inside the vertical filter holes.

[0021] A frustum-shaped outer cover is movably fitted around the bottom of the pressure rod. The bottom of the frustum-shaped outer cover is also equipped with a trigger drive component to trigger the actuator inside the filter vertical hole to open when crushed rosin particles are blocked inside the hole.

[0022] As an optional solution to the technical solution in this application, the opposite ends of the two second sliding inclined platforms are flush with the left and right ends of the filter plate, respectively.

[0023] As an optional solution to the technical solution of this application, the in-hole actuator includes a processing shaft with its top end extending through the interior of a corresponding filter vertical hole, and a cleaning spiral blade connected to the side wall of the portion of the processing shaft inside the filter vertical hole and the portion extending through the interior of the filter vertical hole.

[0024] A motor bracket is rotatably connected to the bottom of the processing shaft, and a drive motor is connected to the bottom of the motor bracket. The output shaft of the drive motor is connected to the bottom of the processing shaft.

[0025] A conical sliding cover is fixed to the outer periphery of the bottom end of the processing shaft. An L-shaped scraper is connected to the bottom end of the conical sliding cover, and the bottom end of the L-shaped scraper extends into the interior of the corresponding filter vertical hole.

[0026] A vertical groove is provided on the side wall of the filter vertical hole. An arc-shaped scraper is slidably connected inside the vertical groove. Multiple telescopic springs are also provided inside the vertical groove. One end of the telescopic spring is connected to the bottom wall of the vertical groove, and the other end is connected to the end of the arc-shaped scraper that extends into the vertical groove.

[0027] As an optional solution to the technical solution in this application, the top of the motor bracket is fixedly connected to the bottom of the filter plate.

[0028] As an optional solution to the technical solution of this application, the triggering drive includes an insulating sleeve disposed inside the frustum outer cover and fixedly connected to the bottom end of the pressure rod;

[0029] An insulating base post is movably inserted into the opening at the bottom end of the insulating sleeve;

[0030] A lower trigger ring is fixedly sleeved on the outer periphery of the bottom end of the insulating base post, and an upper trigger ring is fixedly sleeved on the outer periphery of the bottom end of the insulating sleeve, with the bottom end of the upper trigger ring protruding beyond the bottom end of the insulating sleeve.

[0031] A return spring is connected to the top wall of the inner cavity of the insulating sleeve, and the bottom end of the return spring is fixedly connected to the top of the insulating base post.

[0032] The bottom of both the outer casing of the truncated cone and the bottom of the insulating base column are connected to the bottom wall of the inner cavity of the filter cartridge.

[0033] As an optional solution to the technical solution in this application, the trigger drive motor is turned on when the upper trigger ring moves down and its bottom end contacts the top end of the lower trigger ring.

[0034] As an optional solution to the technical solution in this application, multiple powder discharge ports are arranged in a circular array and uniformly distributed between the inner wall of the filter cylinder and the outer casing of the truncated cone.

[0035] A method for preparing a petroleum resin modified rosin resin dispersion, characterized by comprising the following steps:

[0036] S1. The rosin raw material block for preparing the petroleum resin modified rosin resin dispersion is fed into the crushing cylinder through the feed port and the power motor is started. Then the high-speed rotating crushing blades initially crush the rosin raw material block.

[0037] S2. Start the first servo reduction motor. The discharge roller drives the distribution plate to slowly turn the crushed rosin and feed it into the roller crusher for roller crushing, ensuring a stable amount of rosin to be crushed each time.

[0038] S3. The double roll crusher further crushes the rosin that has been initially crushed, and produces rosin particles required for preparing petroleum resin modified rosin resin dispersion.

[0039] S4. The rosin particles slide down the inclined surfaces of the first and second sliding platforms to the vertical filter holes. The rosin particles pass through the vertical filter holes and then slide down the conical curved surface of the outer casing of the truncated cone to the inside of the powder discharge port.

[0040] S5. The rosin fragments that are not fully crushed by the roller crusher are filtered and intercepted through the vertical filter holes. When the crushed rosin particles slide into the vertical filter holes and cause blockage, affecting the normal feeding of the preparation of petroleum resin modified rosin resin dispersion, the filter plate with crushed rosin raw materials continuously accumulates on the surface, which drives the lower pressure rod to continuously increase the downward pressure on the trigger drive component. When the lower trigger ring contacts the lower trigger ring, the actuator in the trigger hole is activated.

[0041] S6. After the in-hole actuator is started, the drive motor drives the cleaning spiral blades to discharge the rosin particles blocked in the filter vertical hole downwards. Under the action of the spring, the arc-shaped scraper that is close to the inner wall of the filter vertical hole and rotates with the processing shaft scrapes off the rosin adhering to the inner wall of the filter vertical hole.

[0042] S7. Place rosin granules into a reaction vessel and melt them by stirring and heating under CO2 protection. When the temperature reaches 190℃~195℃, add maleic anhydride and maintain the temperature at 195℃~210℃ for 1.5h~2.5h. Then, add nonylphenol sulfide oligomer, propylene glycol, petroleum resin, and 0.5mol / L potassium hydroxide aqueous solution to the reaction vessel. Raise the temperature and maintain the temperature for esterification. When the acid value of the reactants in the reaction vessel is ≤130mgKOH / g, lower the temperature to 1℃. At 00℃~150℃, add a hydrophilic reagent, cool down to 100℃~105℃ and keep warm for 10 minutes, then increase the stirring speed to 600r / min~800r / min, add hot water at 90℃~98℃, cool down to 90℃~98℃ and keep warm for 1 minute~5 minutes, then reduce the stirring speed to 50r / min~150r / min and quickly discharge the material, allowing it to cool to below 40℃ within 10 minutes, filter, and obtain a petroleum resin modified rosin resin dispersion.

[0043] One or more technical solutions provided in this application have at least the following technical effects or advantages:

[0044] 1. In the process of preparing petroleum resin modified rosin resin dispersion, the present invention can fully pulverize the rosin raw materials required in the preparation process into rosin particles of uniform size. This ensures not only the uniformity of rosin raw material pulverization during subsequent heating and melting of the pulverized raw materials, but also effectively shortens the melting time of the rosin raw materials. This achieves the purpose of shortening the preparation time of petroleum resin modified rosin resin dispersion and improving the processing efficiency of petroleum resin modified rosin resin dispersion preparation.

[0045] 2. Rosin raw material blocks for preparing petroleum resin modified rosin resin dispersions are fed into the crushing cylinder through the feed inlet, and the power motor is started. The high-speed rotating crushing blades then initially crush the rosin raw material blocks. Next, the first servo reduction motor is started, and the discharge roller drives the distribution plate to slowly tilt the crushed rosin downwards. This ensures a stable amount of rosin fed into the double-roll crusher for initial crushing, preventing fluctuations in the amount of rosin to be further crushed. This guarantees a stable supply of rosin raw materials to the double-roll crusher, avoids increasing the idling stroke of the double-roll crusher, and improves the rosin crushing efficiency. This also ensures that the amount of rosin fed into the filter element after being crushed by the double roll crusher is stable. This avoids the filter element from being accidentally triggered due to fluctuating amounts of rosin fed into it, which could lead to mechanical wear and energy waste caused by the activation of the actuator inside the hole. This is beneficial for improving the service life of the invention and the filtration effect on the rosin raw material after the two crushing processes. It also ensures that the rosin raw material fed into the double roll crusher each time is crushed and pulverized again into rosin granules with uniform particle size, thereby obtaining the uniformly pulverized rosin granules required for preparing petroleum resin modified rosin resin dispersion.

[0046] 3. Rosin fragments that are not fully crushed by the roller crusher and whose particle size does not meet the requirements are filtered and intercepted through the vertical filter holes. When crushed rosin particles slide into the vertical filter holes and cause blockage, affecting the normal feeding of the petroleum resin modified rosin resin dispersion, the filter plate with continuously accumulated crushed rosin raw materials drives the lower pressure rod to continuously increase the downward pressure on the trigger drive component. When the lower trigger ring contacts the lower trigger ring, the actuator in the trigger hole is activated, so that when the fully crushed rosin raw material is blocked inside the vertical filter holes during the preparation of the petroleum resin modified rosin resin dispersion, it can pass through this filter. The trigger drive in the invention actively detects and promptly activates the in-hole actuator. Subsequently, the activated in-hole actuator drives the cleaning spiral blades via a drive motor to spirally discharge the rosin particles blocked in the filter vertical holes downwards. This avoids the need for manual shutdown and manual hole cleaning when rosin material blockage occurs during the preparation of petroleum resin modified rosin resin dispersion. It also ensures the smooth feeding of fully pulverized rosin particles during the preparation of petroleum resin modified rosin resin dispersion, which is conducive to further improving the processing efficiency of petroleum resin modified rosin resin dispersion preparation.

[0047] 4. After the actuator inside the hole is started, the drive motor drives the cleaning spiral blades to spirally discharge the rosin granular raw material blocked in the filter vertical hole downwards. Under the action of the extension spring, the arc-shaped scraper, which is close to the inner wall of the filter vertical hole and rotates with the processing shaft, scrapes off the rosin that has condensed into hard lumps due to contact with moisture in the air. This makes the inner wall of the filter vertical hole smoother and improves the smoothness of the rosin granular raw material filtration process. This further improves the smoothness of rosin raw material feeding in the preparation of petroleum resin modified rosin resin dispersion, which in turn helps to further improve the processing efficiency of the preparation of resin modified rosin resin dispersion. Attached Figure Description

[0048] Figure 1 This is a schematic diagram of the overall front cross-sectional structure of the present invention;

[0049] Figure 2 This is a schematic diagram of the structure of the filter component in this invention;

[0050] Figure 3 This is a three-dimensional structural diagram of the filter plate in this invention;

[0051] Figure 4 This is a schematic diagram of the internal actuator in this invention;

[0052] Figure 5 This is a schematic diagram of the horizontal cross-sectional structure of the L-shaped scraper in this invention.

[0053] The following are the labels in the diagram: 1. Crushing cylinder; 2. Crushing blade; 3. Power motor; 401. Filter plate; 402. First sliding inclined platform; 403. Second sliding inclined platform; 404. L-shaped scraper; 405. Drive motor; 406. Frustum outer cover; 407. Lower pressure rod; 409. Filter vertical hole; 410. Cleaning spiral blade; 411. Motor bracket; 412. Conical sliding cover; 413. Telescopic spring; 414. Arc-shaped scraper; 501. Insulating sleeve; 502. Insulating base column; 503. Return spring; 504. Upper trigger ring; 505. Lower trigger ring; 6. Double roll crusher; 9. Filter cylinder; 11. Discharge roller; 12. Distributor plate; 13. Feed inlet; 14. Powder discharge port. Detailed Implementation

[0054] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application. The application will be further described in detail below with reference to the accompanying drawings.

[0055] Reference Figure 1This application provides a method for preparing a petroleum resin modified rosin resin dispersion. The method utilizes a preparation device for petroleum resin modified rosin resin dispersions. The device includes a grinding cylinder 1, with a top cover sealed and fixedly connected to the top opening. A grinding shaft is rotatably connected to the bottom of the top cover, and grinding blades 2 are connected to the grinding shaft. A power motor 3 is connected to the top of the top cover, and the output shaft of the power motor 3 is connected to the top of the grinding shaft. A feed inlet 13 is connected to the upper part of the side wall of the grinding cylinder 1, and a discharge pipe is connected to the bottom of the grinding cylinder 1. The inner cavity of the discharge pipe is close to... A discharge roller 11 is rotatably connected to one end of the crushing cylinder 1 via a first rotating shaft. Multiple distribution plates 12 are evenly connected to the side wall of the discharge roller 11. A first servo reduction motor is connected to the side wall of the discharge pipe at a position corresponding to the first rotating shaft, and the output shaft of the first servo reduction motor is connected to the end of the first rotating shaft. A double-roll crusher 6 is located below the discharge pipe, and the bottom end of the discharge pipe is connected to the inlet of the double-roll crusher 6. A filter cylinder 9 is connected to the discharge outlet at the bottom of the double-roll crusher 6. The filter cylinder 9 contains a filter component capable of filtering and screening the rosin powder after roller crushing. Multiple powder discharge ports 14 are evenly connected to the bottom of the filter cylinder 9. The discharge pipe has a cuboid structure, and its inner cavity is also a cuboid structure. The distance between the front and rear end faces of the distribution plates 12 is the same as the distance between the front and rear end faces of the inner cavity of the discharge pipe. Rosin raw material blocks for preparing petroleum resin modified rosin resin dispersions are fed into the crushing cylinder 1 through the feed inlet 13 and the power motor 3 is started. Subsequently, the high-speed rotating crushing blades 2 initially crush the rosin raw material blocks. Then, the first servo reduction motor is started, and the discharge roller 11 drives the distribution plate 12 to slowly flip the crushed rosin downwards. This ensures that the amount of rosin fed into the double roll crusher 6 for initial crushing is stable, preventing fluctuations in the amount of rosin to be crushed in the double roll crusher. This ensures a stable supply of rosin raw materials to the double roll crusher 6, avoids increasing the idling stroke of the double roll crusher 6, and improves the rosin crushing efficiency. While improving efficiency, this also ensures a stable amount of rosin fed into the filter element after being crushed by the double roll crusher 6. This prevents the filter element from being accidentally triggered due to fluctuating amounts of rosin, which could lead to mechanical wear and energy waste caused by the activation of the actuator inside the hole. This improves the service life of the invention and the filtration effect on the rosin raw material after the two crushing processes. The rosin raw material fed into the double roll crusher 6 each time is crushed and pulverized into rosin granules with uniform particle size, thereby producing uniformly pulverized rosin granules required for preparing petroleum resin modified rosin resin dispersions.

[0056] Reference Figure 2 and Figure 3This application provides a method for preparing a petroleum resin modified rosin resin dispersion. The filter component includes a filter plate 401 slidably connected to the inner cavity of a filter cylinder 9. A first sliding ramp 402 is connected to the center of the top surface of the filter plate 401, and second sliding ramps 403 are connected to the left and right sides of the top surface of the filter plate 401. Both the first sliding ramp 402 and the second sliding ramp 403 are triangular prism structures. The longitudinal section of the first sliding ramp 402 is an isosceles triangle, and the longitudinal section of the second sliding ramp 403 is a right triangle. The inclined surface of the second sliding ramp 403 faces the first... The filter plate 401 has a sliding ramp 402 and a filter plate 401 with multiple vertical filter holes 409 evenly distributed between the first sliding ramp 402 and the second sliding ramp 403. The bottom of the filter plate 401, corresponding to the position of each vertical filter hole 409, is equipped with an in-hole actuator to remove crushed rosin particles blocked inside the vertical filter hole 409. A frustum-shaped outer cover 406 is movably fitted around the bottom of the pressure rod 407. The bottom of the frustum-shaped outer cover 406 is also equipped with a trigger drive to open the in-hole actuator when crushed rosin particles are blocked inside the vertical filter hole 409. The opposite ends of the two second sliding ramps 403 are flush with the left and right ends of the filter plate 401, respectively.

[0057] Reference Figure 2 , Figure 4 and Figure 5 This application provides a method for preparing a petroleum resin modified rosin resin dispersion. The in-hole actuator includes a processing shaft with its top end extending through a corresponding filter vertical hole 409. A cleaning spiral blade 410 is connected to the side wall of the portion of the processing shaft inside the filter vertical hole 409 and the portion extending through the filter vertical hole 409. A motor bracket 411 is rotatably connected to the bottom end of the processing shaft. A drive motor 405 is connected to the bottom of the motor bracket 411, and the output shaft of the drive motor 405 is connected to the bottom end of the processing shaft. A conical sliding cover 412 is fixedly fitted to the outer periphery of the bottom end of the processing shaft. An L-shaped scraper 404 is connected to the bottom end of the conical sliding cover 412, and the bottom end of the L-shaped scraper 404 extends into the interior of the corresponding filter vertical hole 409. A vertical groove is formed on the side wall of the filter vertical hole 409, and an arc-shaped scraper 414 is slidably connected inside the vertical groove. Multiple telescopic springs 413 are also provided inside the vertical groove, with one end of the telescopic spring 413 connected to the bottom wall of the vertical groove and the other end connected to the end of the arc-shaped scraper 414 that extends into the vertical groove. The top end of the motor bracket 411 is fixedly connected to the bottom of the filter plate 401.

[0058] Reference Figure 2This application provides a method for preparing a petroleum resin modified rosin resin dispersion. The trigger drive includes an insulating sleeve 501 disposed inside a frustum-shaped outer cover 406 and fixedly connected to the bottom end of a lower pressure rod 407. An insulating bottom post 502 is movably inserted into the opening at the bottom end of the insulating sleeve 501. A lower trigger ring 505 is sleeved and fixedly connected to the outer periphery of the bottom end of the insulating bottom post 502. An upper trigger ring 504 is sleeved and fixedly connected to the outer periphery of the bottom end of the insulating sleeve 501, and the bottom end of the upper trigger ring 504 protrudes from the bottom end of the insulating sleeve 501. A return spring 503 is connected to the top wall of the inner cavity of the insulating sleeve 501, and the bottom end of the return spring 503 is fixedly connected to the top end of the insulating bottom post 502. The bottom ends of the frustum-shaped outer cover 406 and the insulating bottom post 502 are both connected to the bottom wall of the inner cavity of the filter cylinder 9. When the upper trigger ring 504 moves down and its bottom end contacts the top end of the lower trigger ring 505, the trigger drive motor 405 is turned on. Multiple powder feed ports 14 are evenly arranged in a circular array between the inner wall of the filter cylinder 9 and the frustum-shaped outer cover 406. Rosin fragments that are not fully crushed by the roller crusher 6 and whose particle size is substandard are filtered and intercepted through the vertical filter holes 409. When crushed rosin particles slide into the vertical filter holes 409 and cause blockage, affecting the normal feeding of the petroleum resin modified rosin resin dispersion, the filter plate 401, with its surface continuously accumulating crushed rosin raw materials, drives the lower pressure rod 407 to continuously increase the downward pressure on the trigger drive component. When the lower trigger ring 504 contacts the lower trigger ring 505, the actuator in the trigger hole is activated, allowing the petroleum resin modified rosin resin dispersion to be prepared when the fully crushed rosin particles block the vertical filter holes 409. When the filter is internal, the trigger drive in this invention can actively detect and promptly drive the internal actuator to start. The activated internal actuator then drives the cleaning spiral blades 410 via the drive motor 405 to spirally discharge the rosin particles blocked in the filter vertical holes 409 downwards. This avoids the need for manual shutdown and manual hole cleaning when rosin material blockage occurs during the preparation of petroleum resin modified rosin resin dispersion. It also ensures the smooth feeding of fully pulverized rosin particles during the preparation of petroleum resin modified rosin resin dispersion, which is beneficial to further improve the processing efficiency of petroleum resin modified rosin resin dispersion preparation.After the actuator inside the hole is started, the drive motor 405 drives the cleaning spiral blades 410 to spirally discharge the rosin granular raw material blocked in the filter vertical hole 409 downwards. Under the action of the extension spring 413, the arc-shaped scraper 414, which is close to the inner wall of the filter vertical hole 409 and rotates with the processing shaft, scrapes off the rosin that has condensed into hard lumps on the inner wall of the filter vertical hole 409 due to contact with water vapor in the air. This makes the inner wall of the filter vertical hole 409 smoother, improves the smoothness of the rosin granular raw material filtration and feeding process, and further improves the smoothness of rosin raw material feeding in the preparation of petroleum resin modified rosin resin dispersion, which in turn helps to further improve the processing efficiency of the preparation of resin modified rosin resin dispersion.

[0059] A method for preparing a petroleum resin-modified rosin resin dispersion, characterized by comprising the following steps:

[0060] S1. The rosin raw material block for preparing the petroleum resin modified rosin resin dispersion is fed into the crushing cylinder 1 through the feed port 13 and the power motor 3 is started. Then the high-speed rotating crushing blade 2 initially crushes the rosin raw material block.

[0061] S2. Start the first servo reduction motor. The discharge roller 11 drives the distribution plate 12 to slowly turn the crushed rosin and feed it into the roller crusher 6 for roller crushing, so as to ensure a stable amount of rosin to be crushed for the second time each time.

[0062] S3, the double roll crusher 6 crushes the rosin that has been initially crushed by a second roll crushing process to obtain the rosin particles required for preparing the petroleum resin modified rosin resin dispersion.

[0063] S4. The rosin particles slide down the inclined surfaces of the first sliding platform 402 and the second sliding platform 403 to the filter vertical hole 409. The rosin particles pass through the filter vertical hole 409 and then slide down the conical curved surface of the outer cover 406 to the inside of the powder discharge port 14.

[0064] S5. Rosin fragments that are not fully crushed by the roller crusher 6 are filtered and intercepted through the vertical filter hole 409. When the crushed rosin particles slide into the vertical filter hole 409 and cause blockage of the vertical filter hole 409, affecting the normal feeding of the preparation of petroleum resin modified rosin resin dispersion, the filter plate 401 with crushed rosin raw material continuously accumulates on the surface, which drives the lower pressure rod 407 to continuously increase the downward pressure on the trigger drive component. When the lower trigger ring 504 contacts the lower trigger ring 505, the actuator in the trigger hole is activated.

[0065] S6. After the in-hole actuator is started, the drive motor 405 drives the cleaning spiral blade 410 to spirally discharge the rosin particles blocked in the filter vertical hole 409 downwards, and the arc-shaped scraper 414, which is in close contact with the inner wall of the filter vertical hole 409 under the action of the spring and rotates with the processing shaft, scrapes off the rosin adhering to the inner wall of the filter vertical hole 409.

[0066] S7. Place rosin granules into a reaction vessel and melt them by stirring and heating under CO2 protection. When the temperature reaches 190℃~195℃, add maleic anhydride and maintain the temperature at 195℃~210℃ for 1.5h~2.5h. Then, add nonylphenol sulfide oligomer, propylene glycol, petroleum resin, and 0.5mol / L potassium hydroxide aqueous solution to the reaction vessel. Raise the temperature and maintain the temperature for esterification. When the acid value of the reactants in the reaction vessel is ≤130mgKOH / g, lower the temperature to 1℃. At 00℃~150℃, add a hydrophilic reagent, cool down to 100℃~105℃ and keep warm for 10 minutes, then increase the stirring speed to 600r / min~800r / min, add hot water at 90℃~98℃, cool down to 90℃~98℃ and keep warm for 1 minute~5 minutes, then reduce the stirring speed to 50r / min~150r / min and quickly discharge the material, allowing it to cool to below 40℃ within 10 minutes, filter, and obtain a petroleum resin modified rosin resin dispersion.

Claims

1. An apparatus for preparing a petroleum resin-modified rosin resin dispersion, characterized in that: The preparation method of petroleum resin modified rosin resin dispersion is realized by using a petroleum resin modified rosin resin dispersion preparation equipment. The petroleum resin modified rosin resin dispersion preparation equipment includes a crushing cylinder (1), a top cover is sealed and fixedly connected to the top opening of the crushing cylinder (1), a crushing shaft is rotatably connected to the bottom of the top cover, a crushing blade (2) is connected to the crushing shaft, a power motor (3) is connected to the top of the top cover, and the output shaft of the power motor (3) is connected to the top of the crushing shaft. The upper part of the side wall of the crushing cylinder (1) is connected to the feed inlet (13), the bottom of the crushing cylinder (1) is connected to the discharge pipe, the end of the discharge pipe near the crushing cylinder (1) is rotatably connected to the discharge roller (11) through the first rotating shaft, a plurality of material distribution plates (12) are evenly connected on the side wall of the discharge roller (11), the side wall of the discharge pipe is connected to the first servo reduction motor at the position corresponding to the first rotating shaft, and the output shaft of the first servo reduction motor is connected to the end of the first rotating shaft; A double roll crusher (6) is provided below the discharge pipe, and the bottom end of the discharge pipe is connected to the feed port of the double roll crusher (6); A filter cylinder (9) is connected to the discharge port at the bottom of the double roll crusher (6). The filter cylinder (9) is equipped with a filter component that can filter and screen the rosin powder after it has been crushed by the double roll crusher. The bottom of the filter cylinder (9) is evenly connected to multiple powder feed ports (14); The discharge pipe has a cuboid structure, and its inner cavity also has a cuboid structure. The spacing between the front and rear end faces of the material distribution plate (12) is the same as the spacing between the front and rear end faces of the inner cavity of the discharge pipe; The filter component includes a filter plate (401) that is slidably connected to the inner cavity of the filter cylinder (9). A first sliding ramp (402) is connected to the middle of the top surface of the filter plate (401), and a second sliding ramp (403) is connected to the left and right sides of the top surface of the filter plate (401). Multiple vertical filter holes (409) are evenly opened on the top of the filter plate (401) between the first sliding inclined platform (402) and the second sliding inclined platform (403). The bottom of the filter plate (401) is provided with an in-hole actuator at the position corresponding to each filter vertical hole (409) to remove the crushed rosin particles that are blocked inside the filter vertical hole (409) from the hole. The pressure rod (407) is located at the bottom of the filter plate (401). The outer periphery of the bottom end of the pressure rod (407) is movably fitted with a frustum outer cover (406). The bottom end of the frustum outer cover (406) is also provided with a trigger drive component for triggering the actuator in the hole to open when there are crushed rosin particles blocking the filter vertical hole (409).

2. The apparatus for preparing petroleum resin modified rosin resin dispersion according to claim 1, characterized in that: The opposite ends of the two second sliding ramps (403) are flush with the left and right ends of the filter plate (401), respectively.

3. The apparatus for preparing petroleum resin modified rosin resin dispersion according to claim 2, characterized in that: The in-hole actuator includes a processing shaft with its top end extending through the interior of a corresponding filter vertical hole (409). The processing shaft is located inside the filter vertical hole (409) and has a cleaning spiral blade (410) connected to the side wall of the portion extending through the filter vertical hole (409). A motor bracket (411) is rotatably connected to the bottom end of the processing shaft, and a drive motor (405) is connected to the bottom of the motor bracket (411), and the output shaft of the drive motor (405) is connected to the bottom end of the processing shaft. A conical sliding cover (412) is fixedly sleeved on the outer periphery of the bottom end of the processing shaft. An L-shaped scraper (404) is connected to the bottom end of the conical sliding cover (412), and the bottom end of the L-shaped scraper (404) extends into the interior of the corresponding filter vertical hole (409). A vertical groove is provided on the side wall of the filter vertical hole (409). An arc-shaped scraper (414) is slidably connected inside the vertical groove. Multiple telescopic springs (413) are also provided inside the vertical groove. One end of the telescopic spring (413) is connected to the bottom wall of the vertical groove, and the other end is connected to the end of the arc-shaped scraper (414) that extends into the vertical groove.

4. The apparatus for preparing petroleum resin modified rosin resin dispersion according to claim 3, characterized in that: The top of the motor bracket (411) is fixedly connected to the bottom of the filter plate (401).

5. The apparatus for preparing petroleum resin modified rosin resin dispersion according to claim 4, characterized in that: The trigger drive includes an insulating sleeve (501) disposed inside the frustum outer cover (406) and fixedly connected to the bottom end of the pressure rod (407). An insulating bottom post (502) is movably inserted into the bottom opening of the insulating sleeve (501). A lower trigger ring (505) is fixedly sleeved on the outer periphery of the bottom end of the insulating base post (502), and an upper trigger ring (504) is fixedly sleeved on the outer periphery of the bottom end of the insulating sleeve (501), with the bottom end of the upper trigger ring (504) protruding from the bottom end of the insulating sleeve (501). A return spring (503) is connected to the top wall of the inner cavity of the insulating sleeve (501), and the bottom end of the return spring (503) is fixedly connected to the top end of the insulating base post (502); The bottom ends of the truncated cone outer cover (406) and the insulating bottom column (502) are both connected to the bottom wall of the inner cavity of the filter cylinder (9).

6. The method for preparing the petroleum resin modified rosin resin dispersion according to claim 5, characterized in that: When the upper trigger ring (504) moves down and its bottom end contacts the top end of the lower trigger ring (505), the trigger drive motor (405) is turned on.

7. The apparatus for preparing petroleum resin modified rosin resin dispersion according to claim 6, characterized in that: Multiple powder discharge ports (14) are arranged in a circular array between the inner wall of the filter cylinder (9) and the outer cover of the truncated cone (406).

8. The method of using the apparatus for preparing a petroleum resin modified rosin resin dispersion according to claim 7, characterized in that, Includes the following steps: S1. The rosin raw material block for preparing the petroleum resin modified rosin resin dispersion is fed into the crushing cylinder (1) through the feed port (13) and the power motor (3) is started. Then the high-speed rotating crushing blade (2) initially crushes the rosin raw material block. S2. Start the first servo reduction motor. The discharge roller (11) drives the distribution plate (12) to slowly turn the crushed rosin over and feed it into the roller crusher (6) for roller crushing, so as to ensure that the amount of rosin to be crushed for the second time is stable. S3. The double roll crusher (6) crushes the rosin that has been initially crushed by roller pressing for a second time to obtain the rosin particles required for preparing the petroleum resin modified rosin resin dispersion. S4. The rosin particles slide down the inclined surfaces of the first sliding platform (402) and the second sliding platform (403) to the filter vertical hole (409). The rosin particles pass through the filter vertical hole (409) and then slide down the conical curved surface of the truncated cone outer cover (406) to the inside of the powder discharge port (14). S5. The rosin fragments that have not been fully crushed by the roller crusher (6) are filtered and intercepted through the vertical filter hole (409). When the crushed rosin particles slide into the vertical filter hole (409) and cause blockage of the vertical filter hole (409), affecting the normal feeding of the preparation of petroleum resin modified rosin resin dispersion, the filter plate (401) with crushed rosin raw material continuously accumulates on the surface, which drives the lower pressure rod (407) to continuously increase the downward pressure on the trigger drive component. When the lower trigger ring (504) contacts the lower trigger ring (505), the actuator in the trigger hole is activated. S6. After the in-hole actuator is started, the drive motor (405) drives the cleaning spiral blade (410) to spirally discharge the rosin particles blocked in the filter vertical hole (409) downwards. Under the action of the spring, the arc-shaped scraper (414) that is close to the inner wall of the filter vertical hole (409) and rotates with the processing shaft scrapes off the rosin adhering to the inner wall of the filter vertical hole (409). S7. Place rosin granules into a reaction vessel and melt them by stirring and heating under CO2 protection. When the temperature reaches 190℃~195℃, add maleic anhydride and maintain the temperature at 195℃~210℃ for 1.5h~2.5h. Then, add nonylphenol sulfide oligomer, propylene glycol, petroleum resin, and 0.5mol / L potassium hydroxide aqueous solution to the reaction vessel. Raise the temperature and maintain the temperature for esterification. When the acid value of the reactants in the reaction vessel is ≤130mgKOH / g, lower the temperature to 1℃. At 00℃~150℃, add a hydrophilic reagent, cool down to 100℃~105℃ and keep warm for 10 minutes, then increase the stirring speed to 600r / min~800r / min, add hot water at 90℃~98℃, cool down to 90℃~98℃ and keep warm for 1 minute~5 minutes, then reduce the stirring speed to 50r / min~150r / min and quickly discharge the material, allowing it to cool to below 40℃ within 10 minutes, filter, and obtain a petroleum resin modified rosin resin dispersion.

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