Preparation method of petroleum resin modified rosin resin dispersion

Abstract

The invention discloses a preparation method of a petroleum resin modified rosin resin dispersoid, and belongs to the technical field of petroleum resin modified rosin resin dispersoid preparation.The preparation equipment of the petroleum resin modified rosin resin dispersoid comprises a smashing cylinder, and the upper portion of the side wall of the smashing cylinder is connected with a feeding port; the end, close to the smashing cylinder, of an inner cavity of the discharging pipe is rotationally connected with a discharging roller through a first rotating shaft. In the process of preparing the petroleum resin modified rosin resin dispersion, the rosin raw material required in the preparation process can be fully crushed into rosin particles with uniform particle sizes, so that when the crushed rosin raw material is heated and melted subsequently, the crushing uniformity of the rosin raw material can be effectively guaranteed, and the rosin raw material can be uniformly crushed. And the melting time of the rosin raw material can be effectively shortened, so that the purposes of shortening the preparation time of the petroleum resin modified rosin resin dispersion and improving the processing efficiency of the petroleum resin modified rosin resin dispersion are achieved.

Description

Technical Field

[0001] The present application relates to the technical field of preparation of petroleum resin modified rosin resin dispersion, and more specifically, to a preparation method of petroleum resin modified rosin resin dispersion. Background Art

[0002] Petroleum resin is named after its source as a petroleum derivative. It is a C5 and C9 fraction produced as a byproduct of petroleum cracking. It is a thermoplastic resin produced through pretreatment, polymerization, distillation and other processes. Rosin resin is made from rosin as raw material. It is made through a series of reactions and has a high softening point, high viscosity, and better oxidation resistance. It is completely resistant to crystallization in liquid state or in solution. Resin dispersion is widely used in water-based adhesives to give special properties. Resin dispersion is a stable heterogeneous system of resin droplets in water.

[0003] The document with the prior art publication number CN104293252B provides a petroleum resin modified rosin resin dispersion and its preparation method. The invention includes the following components in parts by weight: 470 to 500 parts of rosin; 20 to 25 parts of maleic anhydride; 1.2 to 1.8 parts of nonylphenol sulfide oligomer; 9 to 11 parts of propylene glycol; 120 to 135 parts of petroleum resin; 1.5 to 1.8 parts of 0.5 mol / L potassium hydroxide aqueous solution; 60 to 90 parts of hydrophilic reagent, 550 to 600 parts of hot water. Compared with the prior art, the present invention adopts a reverse process method to disperse the resin into a dispersion of 0.15um to 1um in size, and the dispersion is prepared into a water-based adhesive with rubber latex or carboxyl styrene butadiene latex or acrylic latex, etc., which has good initial adhesion, peeling force and lasting adhesion, and the preparation method of the petroleum resin modified rosin resin dispersion includes the following steps:

[0004] A. Grind the rosin, put it into the reactor, heat and melt it under the protection of CO2, 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] After the BA step, the nonylphenol sulfide oligomer, propylene glycol, petroleum resin and 0.5 mol / L potassium hydroxide aqueous solution are added to the reactor under stirring, and then the temperature is raised to 260° C. to 285° C. for heat preservation and esterification, and the acid value is continuously measured;

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

[0007] Although the above-mentioned prior art solution can achieve the relevant beneficial effects through the structure of the prior art, it still has the following defects: when preparing the petroleum resin modified rosin resin dispersion and crushing the solid rosin in the above-mentioned prior art, it is difficult to fully crush the rosin into powder with a uniform particle size, so that after the staff puts the rosin blocks with different particle sizes into the reactor, due to the difference in the volume of the crushed solid rosin, when the rosins of different volumes are directly put into the reactor, the rosin with a larger volume melts slowly, while the rosin with a smaller volume is melted quickly. In order to ensure the complete dissolution of the rosin, it is necessary to increase the hot melting time, which will undoubtedly reduce the processing efficiency of the preparation of the petroleum resin modified rosin resin dispersion.

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

[0009] 1. Technical problems to be solved

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

[0011] 2. Technical solution

[0012] The technical solution of the present application provides a method for preparing a petroleum resin modified rosin resin dispersion. The method for preparing a petroleum resin modified rosin resin dispersion is implemented using a preparation device for preparing a petroleum resin modified rosin resin dispersion. The preparation device for preparing a petroleum resin modified rosin resin dispersion comprises a pulverizing cylinder, a top cover is sealed and fixedly connected to the top opening of the pulverizing cylinder, a pulverizing shaft is rotatably connected to the bottom of the top cover, a pulverizing blade is connected to the pulverizing shaft, a power motor is 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;

[0013] The upper part of the side wall of the crushing cylinder is connected with a feed port, the bottom of the crushing cylinder is connected with a discharge pipe, one end of the inner cavity of the discharge pipe close to the crushing cylinder is rotatably connected with a discharge roller through a first rotating shaft, a plurality of dividing plates are evenly connected to the side wall of the discharge roller, a first servo reduction motor is connected to the side wall of the discharge pipe corresponding to the position of the first rotating shaft, and the output shaft of the first servo reduction motor is connected to the end of the first rotating shaft;

[0014] A double-roll crusher is arranged below the discharge pipe, and the bottom end of the discharge pipe is connected to the feed inlet of the double-roll crusher;

[0015] A filter cartridge is connected to the discharge port at the bottom of the roller crusher, and a filter component is provided inside the filter cartridge to filter and screen the rosin powder after roller crushing.

[0016] The bottom of the filter cartridge is evenly connected with a plurality of powder feeding ports.

[0017] As an optional solution of the technical solution of this application document, the discharge pipe is a rectangular parallelepiped structure, and its inner cavity is also a rectangular parallelepiped structure;

[0018] The distance between the front and rear end surfaces of the dividing plate is the same as the distance between the front and rear end surfaces of the inner cavity of the discharge pipe.

[0019] As an optional solution of the technical solution of the present application document, the filter component includes a filter plate slidably connected to the inner cavity of the filter cartridge, the middle of the top surface of the filter plate is connected to a first sliding material ramp, and the left and right sides of the top surface of the filter plate are connected to second sliding material ramps;

[0020] A plurality of vertical filtering holes are evenly provided on the top of the filter plate between the first sliding material inclined platform and the second sliding material inclined platform;

[0021] At the bottom of the filter plate and at the position corresponding to each vertical filter hole, an in-hole actuator is provided for clearing the crushed rosin particles blocked inside the vertical filter hole out of the hole;

[0022] The peripheral movable sleeve at the bottom end of the lower pressure rod is provided with a truncated cone outer cover body, and the bottom end of the truncated cone outer cover body is also provided with a trigger driving member for triggering the actuator in the hole to open when the vertical filter hole is blocked with crushed rosin particles.

[0023] As an optional solution of the technical solution of the present application document, the opposite ends of the two second sliding ramps are flush with the left and right ends of the filter plate respectively.

[0024] As an optional solution of the technical solution of the present application document, the in-hole actuator includes a processing shaft with a top end passing through the corresponding vertical filter hole, and the processing shaft is located in the internal part of the vertical filter hole and is connected to the side wall of the part passing through the vertical filter hole;

[0025] The bottom end of the processing shaft is rotatably connected to a motor bracket, the bottom of the motor bracket is connected to a drive motor, and the output shaft of the drive motor is connected to the bottom end of the processing shaft;

[0026] A conical sliding cover is sleeved and fixed on 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 vertical filtering hole;

[0027] A vertical groove is opened on the side wall of the vertical filtering hole, and a curved scraper strip is slidably connected inside the vertical groove. A plurality of telescopic springs are also arranged inside the vertical groove, and one end of the telescopic spring is connected to the bottom wall of the vertical groove, and the other end is connected to one end of the curved scraper strip extending into the vertical groove.

[0028] As an optional solution of the technical solution of this application document, the top end of the motor bracket is fixedly connected to the bottom end of the filter plate.

[0029] As an optional solution of the technical solution of the present application document, the trigger driving member includes an insulating sleeve arranged inside the truncated cone outer cover and fixedly connected to the bottom end of the lower pressure rod;

[0030] An insulating bottom column is movably inserted into the bottom opening of the insulating sleeve;

[0031] A lower trigger ring is fixedly sleeved on the outer periphery of the bottom end of the insulating bottom column, an upper trigger ring is fixedly sleeved on the outer periphery of the bottom end of the insulating sleeve, and the bottom end of the upper trigger ring protrudes from the bottom end of the insulating sleeve;

[0032] A reset spring is connected to the top wall of the inner cavity of the insulating sleeve, and the bottom end of the reset spring is fixedly connected to the top end of the insulating bottom column;

[0033] The bottom ends of the truncated cone outer cover and the insulating bottom column are both connected to the bottom wall of the inner cavity of the filter cartridge.

[0034] As an optional solution of the technical solution of the present application document, when the upper trigger ring moves downward and its bottom end contacts the top end of the lower trigger ring, the trigger drive motor is turned on.

[0035] As an optional solution of the technical solution of this application document, a plurality of powder feed ports are evenly arranged in a circular array between the inner wall of the filter cylinder and the outer cover of the truncated cone.

[0036] A method for preparing a petroleum resin modified rosin resin dispersion, characterized in that it comprises the following steps:

[0037] S1, putting the rosin raw material block for preparing the petroleum resin modified rosin resin dispersion into the grinding cylinder through the feed port and starting the power motor, and then the high-speed rotating grinding knife preliminarily breaks the rosin raw material block;

[0038] S2, start the first servo reduction motor, the discharging roller drives the dividing plate to slowly turn over the crushed rosin and feed it to the inside of the double-roll crusher for roller crushing, so as to ensure the stable feeding amount of the rosin to be crushed for the second time each time;

[0039] S3, a double-roll crusher performs secondary rolling crushing on the initially crushed rosin to obtain rosin particles required for preparing the petroleum resin modified rosin resin dispersion;

[0040] S4, the rosin particles slide down the inclined surfaces of the first sliding ramp and the second sliding ramp to the vertical filter hole, and the rosin particles pass through the vertical filter hole and then slide down along the conical surface of the truncated cone outer cover to the inside of the powder discharge port;

[0041] 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 the vertical filter holes to be blocked, affecting the normal feeding of the preparation of the petroleum resin modified rosin resin dispersion, the filter plate with crushed rosin raw materials continuously accumulated on the surface drives the lower pressure rod to continuously increase the downward pressure on the trigger driving member. When the upper trigger ring moving downward contacts the lower trigger ring, the actuator in the trigger hole starts.

[0042] S6, after the actuator in the hole is started, the driving motor drives the hole cleaning spiral blade to discharge the rosin particles blocked in the vertical filter hole downward in a spiral manner, and the arc scraper bar, which is tightly attached to the inner wall of the vertical filter hole and rotates with the processing shaft under the action of the spring, scrapes off the rosin adhering to the inner wall of the vertical filter hole;

[0043] S7. Put the rosin particles into a reactor, stir and heat to melt under the protection of CO2, add maleic anhydride when the temperature reaches 190℃~195℃, and keep it 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 into the reactor respectively, heat it up for esterification, and when the acid value of the reaction material in the reactor is ≤130mgKOH / g, cool it down to 1 00℃~150℃, add hydrophilic reagent, cool to 100℃~105℃ and keep warm for 10min, then increase the stirring speed to 600r / min~800r / min, add 90℃~98℃ hot water, cool to 90℃~98℃ and keep warm for 1min~5min, then reduce the stirring speed to 50r / min~150r / min and quickly discharge the material, let the material cool to below 40℃ within 10min, filter, and obtain a petroleum resin modified rosin resin dispersion.

[0044] 3. Beneficial effects

[0045] One or more technical solutions provided in the technical solution of this application have at least the following technical effects or advantages:

[0046] 1. In the process of preparing the petroleum resin modified rosin resin dispersion, the present invention can fully crush the rosin raw material required in the preparation process into rosin particles with uniform particle size, so that when the crushed rosin raw material is subsequently heated and melted, not only can the uniformity of the crushing of the rosin raw material be effectively guaranteed, but also the melting time of the rosin raw material can be effectively shortened, thereby achieving the purpose of shortening the preparation time of the petroleum resin modified rosin resin dispersion and improving the processing efficiency of the preparation of the petroleum resin modified rosin resin dispersion.

[0047] 2. Put the rosin raw material block for preparing petroleum resin modified rosin resin dispersion into the crushing cylinder through the feed port and start the power motor. Then the high-speed rotating crushing knife will initially crush the rosin raw material block. Then start the first servo reduction motor, and the discharging roller drives the dividing plate to slowly turn the crushed rosin downward, so that the amount of the initially crushed rosin fed to the roller crusher for roller crushing is stable, and the amount of rosin to be secondarily crushed fed into the roller crusher will not fluctuate. This ensures the stable delivery of rosin raw materials to the roller crusher, avoids increasing the idling stroke of the roller crusher, and improves the rosin crushing efficiency. At the same time, the amount of rosin that is crushed by the double-roll crusher and then fed to the filter component is stabilized, so that when the filter component is filtering the rosin particle raw material, the amount of rosin fed to it fluctuates, which causes the trigger driving component to be triggered incorrectly, thereby causing the actuator in the hole to be started and generate mechanical loss and waste of electric energy, which is beneficial to improving the service life of the present invention and the filtering effect of the rosin raw material after the two crushing processes, so that the rosin raw material that is stably fed into the inside of the double-roll crusher each time can be crushed and crushed again into rosin particle raw materials with uniform particle size, thereby obtaining crushed rosin particles with uniform particle size required for preparing the petroleum resin modified rosin resin dispersion.

[0048] 3. The rosin fragments that are not fully crushed by the roller crusher and whose particle size does not meet the standard are filtered and intercepted through the vertical filter holes. When the crushed rosin particles slide into the vertical filter holes and cause the vertical filter holes to be blocked, affecting the normal feeding of the preparation of the petroleum resin modified rosin resin dispersion, the filter plate with crushed rosin raw materials continuously accumulated on the surface drives the lower pressure rod to continuously increase the downward pressure on the trigger drive member. When the downwardly moving upper trigger ring contacts the lower trigger ring, the actuator in the trigger hole is started, so that when the fully crushed rosin particle raw materials are blocked inside the vertical filter holes during the preparation of the petroleum resin modified rosin resin dispersion, the filter plate can pass through the filter plate to prevent the rosin particles from being blocked inside the vertical filter holes. The trigger driving member in the invention actively discovers and timely drives the actuator in the hole to start, and then the started actuator in the hole drives the hole cleaning spiral blade through the driving motor to spirally discharge the rosin particle raw material blocked in the vertical filter hole downward, avoiding the need to manually stop the machine and then manually perform the hole cleaning step when the rosin raw material feeding is blocked during the preparation process of the petroleum resin modified rosin resin dispersion, and can also ensure the smooth feeding of the rosin particles that are fully crushed during the preparation process of the petroleum resin modified rosin resin dispersion, which is beneficial to further improve the processing efficiency of the preparation of the petroleum resin modified rosin resin dispersion.

[0049] 4. After the actuator in the hole is started, the driving motor drives the hole cleaning spiral blade to spirally discharge the rosin particle raw material blocked in the vertical filter hole downward, and the arc scraper strip, which is tightly attached to the inner wall of the vertical filter hole and rotates with the processing shaft under the action of the telescopic spring, scrapes off the rosin that has condensed into a hard block after contacting the water vapor in the air and adheres to the inner wall of the vertical filter hole, making the inner wall of the vertical filter hole smoother, improving the smoothness of the rosin particle raw material in the process of filtering and feeding, thereby further improving the smoothness of the rosin raw material feeding in the preparation process of the petroleum resin modified rosin resin dispersion, which is beneficial to further improve the processing efficiency of the preparation of the resin modified rosin resin dispersion. BRIEF DESCRIPTION OF THE DRAWINGS

[0050] Figure 1 It is a schematic diagram of the overall front cross-sectional structure of the present invention;

[0051] Figure 2 It is a structural schematic diagram of the filter component in the present invention;

[0052] Figure 3 It is a schematic diagram of the three-dimensional structure of the filter plate in the present invention;

[0053] Figure 4 It is a structural schematic diagram of the in-hole actuator in the present invention;

[0054] Figure 5 It is a schematic diagram of the horizontal cross-section structure of the L-shaped scraper in the present invention.

[0055] Explanation of the numbers in the figure: 1. Crushing cylinder; 2. Crushing knife; 3. Power motor; 401. Filter plate; 402. First sliding ramp; 403. Second sliding ramp; 404. L-shaped scraper; 405. Driving motor; 406. Cone outer cover; 407. Pressing rod; 409. Filter vertical hole; 410. Hole cleaning spiral blade; 411. Motor bracket; 412. Conical sliding cover; 413. Telescopic spring; 414. Arc scraper; 501. Insulating sleeve; 502. Insulating bottom column; 503. Reset spring; 504. Upper trigger ring; 505. Lower trigger ring; 6. Double-roll crusher; 9. Filter cylinder; 11. Discharge roller; 12. Dividing plate; 13. Feed inlet; 14. Powder discharge port. DETAILED DESCRIPTION

[0056] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present application. The present application is further described in detail below in combination with the drawings in the specification.

[0057] Reference Figure 1The embodiment of the present application provides a method for preparing a petroleum resin modified rosin resin dispersion, the method for preparing a petroleum resin modified rosin resin dispersion is implemented using a preparation device for a petroleum resin modified rosin resin dispersion, the preparation device for a petroleum resin modified rosin resin dispersion comprises a grinding cylinder 1, a top cover is sealed and fixedly connected to the top opening of the grinding cylinder 1, a grinding shaft is rotatably connected to the bottom of the top cover, a grinding shaft is connected to a grinding knife 2, 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 port 13 is connected to the upper part of the side wall of the grinding cylinder 1, a discharge pipe is connected to the bottom of the grinding cylinder 1, and the inner cavity of the discharge pipe is close to the discharge pipe. One end of the near-crushing barrel 1 is rotatably connected to a discharge roller 11 through a first rotating shaft, and a plurality of dividing 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 corresponding to the position of 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 roller crusher 6 is provided below the discharge pipe, and the bottom end of the discharge pipe is connected to the feed port of the roller crusher 6. A filter cartridge 9 is connected to the discharge port at the bottom end of the roller crusher 6. A filter component capable of filtering and screening the rosin powder after roller crushing is provided inside the filter cartridge 9, and a plurality of powder discharge ports 14 are evenly connected to the bottom of the filter cartridge 9. The discharge pipe is a rectangular parallelepiped structure, and its inner cavity is also a rectangular parallelepiped structure. The distance between the front and rear end faces of the dividing plate 12 is the same as the distance between the front and rear end faces of the inner cavity of the discharge pipe. The rosin raw material block for preparing the petroleum resin modified rosin resin dispersion is put into the crushing cylinder 1 through the feed port 13 and the power motor 3 is started. Then, the high-speed rotating crushing knife 2 preliminarily crushes the rosin raw material block, and then the first servo reduction motor is started, and the discharging roller 11 drives the dividing plate 12 to slowly turn the crushed rosin downward slowly, so that the amount of the preliminarily crushed rosin fed to the roller crusher 6 for roller crushing treatment is stable, and the amount of the rosin to be secondarily crushed fed into the roller crusher will not fluctuate, thereby ensuring the stable delivery of the rosin raw material to the roller crusher 6, avoiding increasing the idling stroke of the roller crusher 6, and improving the rosin crushing efficiency. While improving efficiency, it also makes the amount of rosin that is crushed by the double-roll crusher 6 and then fed to the filter component stable, avoiding the false triggering of the trigger driving component due to the high and low amount of rosin fed to the filter component when filtering the rosin particle raw material, thereby causing the start of the actuator in the hole to generate mechanical loss and waste of electric energy, which is beneficial to improving the service life of the present invention and the filtering effect of the rosin raw material after the two crushing processes, so that the rosin raw material that is stably fed into the double-roll crusher 6 each time can be crushed again into rosin particle raw materials with uniform particle size, thereby obtaining crushed rosin particles with uniform particle size required for preparing the petroleum resin modified rosin resin dispersion.

[0058] Reference Figure 2 and Figure 3The embodiment of the present application provides a method for preparing a petroleum resin modified rosin resin dispersion, wherein the filter component includes a filter plate 401 slidably connected to the inner cavity of the filter cartridge 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, the first sliding ramp 402 and the second sliding ramp 403 are both triangular prism structures, and the longitudinal section of the first sliding ramp 402 is an isosceles triangle, the longitudinal section of the second sliding ramp 403 is a right triangle, and the inclined surface of the second sliding ramp 403 faces the first sliding ramp 402. The sliding material ramp 402, the top of the filter plate 401 is evenly penetrated with a plurality of vertical filter holes 409 between the first sliding material ramp 402 and the second sliding material ramp 403, the bottom of the filter plate 401 and each vertical filter hole 409 are provided with an in-hole actuator for removing the crushed rosin particles blocked in the vertical filter hole 409, the outer peripheral sleeve of the bottom end of the lower pressure rod 407 is provided with a truncated outer cover 406, and the bottom end of the truncated outer cover 406 is also provided with a trigger driving member for triggering the in-hole actuator to open when the crushed rosin particles are blocked in the vertical filter hole 409. The opposite ends of the two second sliding material ramps 403 are flush with the left and right ends of the filter plate 401 respectively.

[0059] Reference Figure 2 , Figure 4 and Figure 5 The embodiment of the present application provides a method for preparing a petroleum resin modified rosin resin dispersion, wherein the in-hole actuator comprises a processing shaft with a top end penetrating from the inside of a corresponding vertical filter hole 409, a hole cleaning spiral blade 410 is connected to the side wall of the processing shaft in the internal part of the vertical filter hole 409 and the part penetrating from the internal part of the vertical filter hole 409, the bottom end of the processing shaft is rotatably connected to a motor bracket 411, the bottom of the motor bracket 411 is connected to a driving motor 405, and the output shaft of the driving motor 405 is connected to the bottom end of the processing shaft, The outer periphery of the bottom end of the processing shaft is sleeved and fixed with a conical sliding cover 412, and the bottom end of the conical sliding cover 412 is connected to an L-shaped scraper 404, and the bottom end of the L-shaped scraper 404 extends into the corresponding vertical filter hole 409, and a vertical groove is provided on the side wall of the vertical filter hole 409, and a curved scraper strip 414 is slidably connected inside the vertical groove, and a plurality of telescopic springs 413 are also provided inside the vertical groove, and one end of the telescopic spring 413 is connected to the bottom wall of the vertical groove, and the other end is connected to one end of the curved scraper strip 414 extending into the vertical groove. The top end of the motor bracket 411 is fixedly connected to the bottom of the filter plate 401.

[0060] Reference Figure 2The embodiment of the present application provides a method for preparing a petroleum resin modified rosin resin dispersion, wherein the trigger driving member comprises an insulating sleeve 501 disposed inside a truncated cone outer cover 406 and fixedly connected to the bottom end of a lower pressure rod 407, an insulating bottom column 502 is movably inserted in the opening at the bottom end of the insulating sleeve 501, a lower trigger ring 505 is fixedly sleeved on the outer periphery of the bottom end of the insulating bottom column 502, an upper trigger ring 504 is fixedly sleeved on 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 reset spring 503 is connected to the top wall of the inner cavity of the insulating sleeve 501, and the bottom end of the reset spring 503 is fixedly connected to the top end of the insulating bottom column 502, and 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 cartridge 9. When the upper trigger ring 504 moves downward and its bottom end contacts the top end of the lower trigger ring 505, the trigger driving motor 405 is turned on. A plurality of powder material discharge ports 14 are evenly arranged in a circular array between the inner wall of the filter cartridge 9 and the truncated outer cover 406. The rosin fragments that are not fully crushed by the roller crusher 6 and whose particle size does not meet the standard are filtered and intercepted through the filter vertical hole 409. When the crushed rosin particles slide into the filter vertical hole 409 and cause the filter vertical hole 409 to be blocked, affecting the normal feeding of the preparation of the petroleum resin modified rosin resin dispersion, the filter plate 401 with crushed rosin raw materials continuously accumulated on the surface drives the lower pressure rod 407 to continuously increase the downward pressure on the trigger drive member. When the upper trigger ring 504 moving downward contacts the lower trigger ring 505, the actuator in the trigger hole is started, so that during the preparation process of the petroleum resin modified rosin resin dispersion, when the fully crushed rosin particles are blocked in the filter vertical hole 409 When the filter element 408 is inside, the trigger driving member of the present invention can actively discover and timely drive the actuator in the hole to start, and then the started actuator in the hole drives the hole cleaning spiral blade 410 through the driving motor 405 to spirally discharge the rosin particle raw material blocked in the vertical filter hole 409 downward, avoiding the need to manually stop the machine and then manually perform the hole cleaning step when the rosin raw material feeding is blocked during the preparation process of the petroleum resin modified rosin resin dispersion, and can also ensure the smooth feeding of the rosin particles that are fully crushed during the preparation process of the petroleum resin modified rosin resin dispersion, which is beneficial to further improve the processing efficiency of the preparation of the petroleum resin modified rosin resin dispersion.After the actuator in the hole is started, the driving motor 405 drives the hole cleaning spiral blade 410 to spirally discharge the rosin particle raw material blocked in the vertical filter hole 409 downward, and the arc scraper strip 414, which is tightly attached to the inner wall of the vertical filter hole 409 and rotates with the processing axis under the action of the telescopic spring 413, scrapes off the rosin that has condensed into a hard block after contacting the water vapor in the air and adheres to the inner wall of the vertical filter hole 409, making the inner wall of the vertical filter hole 409 smoother, improving the smoothness of the rosin particle raw material during the filtering and feeding process, thereby further improving the smoothness of the rosin raw material feeding during the preparation process of the petroleum resin modified rosin resin dispersion, which is conducive to further improving the processing efficiency of the preparation of the resin modified rosin resin dispersion.

[0061] The method for preparing a petroleum resin modified rosin resin dispersion is characterized by comprising the following steps:

[0062] S1, putting the rosin raw material block for preparing the petroleum resin modified rosin resin dispersion into the grinding cylinder 1 through the feed port 13 and starting the power motor 3, and then the high-speed rotating grinding knife 2 preliminarily breaks the rosin raw material block;

[0063] S2, start the first servo reduction motor, the discharging roller 11 drives the dividing plate 12 to slowly turn over and feed the crushed rosin to the roller crusher 6 for roller crushing, so as to ensure the stable feeding amount of the rosin to be crushed twice each time;

[0064] S3, the roller crusher 6 performs secondary roller crushing on the initially crushed rosin to obtain rosin particles required for preparing the petroleum resin modified rosin resin dispersion;

[0065] S4, the rosin particles slide down the inclined surfaces of the first sliding ramp 402 and the second sliding ramp 403 to the vertical filter hole 409, and the rosin particles pass through the vertical filter hole 409 and then slide down along the conical surface of the truncated cone outer cover 406 to the inside of the powder discharge port 14;

[0066] S5. The 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 the vertical filter hole 409 to be blocked, affecting the normal feeding of the preparation of the petroleum resin modified rosin resin dispersion, the filter plate 401 with the crushed rosin raw materials continuously accumulated on the surface drives the lower pressure rod 407 to continuously increase the downward pressure on the trigger driving member. When the upper trigger ring 504 moving downward contacts the lower trigger ring 505, the actuator in the trigger hole is started.

[0067] S6, after the actuator in the hole is started, the driving motor 405 drives the hole cleaning spiral blade 410 to spirally discharge the rosin particles blocked in the vertical filter hole 409 downward, and the arc scraper 414, which is tightly attached to the inner wall of the vertical filter hole 409 and rotates with the processing axis under the action of the spring, scrapes off the rosin adhering to the inner wall of the vertical filter hole 409;

[0068] S7. Put the rosin particles into a reactor, stir and heat to melt under the protection of CO2, add maleic anhydride when the temperature reaches 190℃~195℃, and keep it 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 into the reactor respectively, heat it up for esterification, and when the acid value of the reaction material in the reactor is ≤130mgKOH / g, cool it down to 1 00℃~150℃, add hydrophilic reagent, cool to 100℃~105℃ and keep warm for 10min, then increase the stirring speed to 600r / min~800r / min, add 90℃~98℃ hot water, cool to 90℃~98℃ and keep warm for 1min~5min, then reduce the stirring speed to 50r / min~150r / min and quickly discharge the material, let the material cool to below 40℃ within 10min, filter, and obtain a petroleum resin modified rosin resin dispersion.

Claims

1. A method for preparing a petroleum resin modified rosin resin dispersion, characterized in that: The method for preparing a petroleum resin modified rosin resin dispersion is implemented using a preparation device for a petroleum resin modified rosin resin dispersion, the preparation device for a petroleum resin modified rosin resin dispersion comprising a pulverizing cylinder (1), a top cover being sealed and fixedly connected to the top opening of the pulverizing cylinder (1), a pulverizing shaft being rotatably connected to the bottom of the top cover, a pulverizing blade (2) being connected to the pulverizing shaft, a power motor (3) being connected to the top of the top cover, and an output shaft of the power motor (3) being connected to the top of the pulverizing shaft; The upper part of the side wall of the pulverizing cylinder (1) is connected to a feed port (13), the bottom of the pulverizing cylinder (1) is connected to a discharge pipe, one end of the inner cavity of the discharge pipe close to the pulverizing cylinder (1) is rotatably connected to a discharge roller (11) via a first rotating shaft, a plurality of dividing 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 provided below the discharge pipe, and the bottom end of the discharge pipe is connected to the feed inlet of the double-roll crusher (6); A filter cartridge (9) is connected to the discharge port at the bottom end of the roller crusher (6), and a filter component capable of filtering and screening the rosin powder after roller crushing is provided inside the filter cartridge (9); The bottom of the filter cylinder (9) is evenly connected to a plurality of powder material discharge ports (14).

2. The method for preparing a petroleum resin modified rosin resin dispersion according to claim 1, characterized in that: The discharge pipe is a rectangular parallelepiped structure, and its inner cavity is also a rectangular parallelepiped structure; The distance between the front and rear end surfaces of the material dividing plate (12) is the same as the distance between the front and rear end surfaces of the inner cavity of the material discharging pipe.

3. The method for preparing a petroleum resin-modified rosin resin dispersion according to claim 1, characterized in that: The filter component comprises a filter plate (401) slidably connected to the inner cavity of the filter cartridge (9), a first sliding ramp (402) is connected to the middle 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); A plurality of vertical filtering holes (409) are evenly provided on the top of the filter plate (401) between the first sliding material inclined platform (402) and the second sliding material inclined platform (403); At the bottom of the filter plate (401) and at the position corresponding to each vertical filter hole (409), an in-hole actuator is provided for removing the crushed rosin particles blocked inside the vertical filter hole (409) out of the hole; The outer peripheral movable sleeve at the bottom end of the lower pressure rod (407) is provided with a truncated cone outer cover (406), and the bottom end of the truncated cone outer cover (406) is also provided with a trigger driving member for triggering the actuator in the hole to open when the vertical filtering hole (409) is blocked with crushed rosin particles.

4. The method for preparing a petroleum resin-modified rosin resin dispersion according to claim 3, 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.

5. The method for preparing a petroleum resin modified rosin resin dispersion according to claim 3, characterized in that: The in-hole actuator comprises a processing shaft with a top end extending from the inside of a corresponding vertical filtering hole (409), and a hole-cleaning spiral blade (410) is connected to the side wall of the processing shaft located inside the vertical filtering hole (409) and the part extending from the inside of the vertical filtering hole (409); The bottom end of the processing shaft is rotatably connected to a motor bracket (411), the bottom of the motor bracket (411) is connected to a driving motor (405), and the output shaft of the driving motor (405) is connected to the bottom end of the processing shaft; A conical sliding cover (412) is sleeved and fixed 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 vertical filtering hole (409); A vertical groove is provided on the side wall of the vertical filtering hole (409), and a curved scraper strip (414) is slidably connected inside the vertical groove. A plurality of telescopic springs (413) are also provided inside the vertical groove, and one end of the telescopic spring (413) is connected to the bottom wall of the vertical groove, and the other end is connected to one end of the curved scraper strip (414) extending into the interior of the vertical groove.

6. The method for preparing a petroleum resin-modified rosin resin dispersion according to claim 5, characterized in that: The top end of the motor bracket (411) is fixedly connected to the bottom end of the filter plate (401).

7. The method for preparing a petroleum resin-modified rosin resin dispersion according to claim 5, characterized in that: The trigger driving member comprises an insulating sleeve (501) which is arranged inside the truncated cone outer cover (406) and is fixedly connected to the bottom end of the lower pressing rod (407); An insulating bottom column (502) is movably inserted into the bottom opening of the insulating sleeve (501); A lower trigger ring (505) is sleeved and fixed on the outer periphery of the bottom end of the insulating bottom column (502), and an upper trigger ring (504) is sleeved and fixed on 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 column (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 cartridge (9).

8. The method for preparing a petroleum resin-modified rosin resin dispersion according to claim 7, characterized in that: When the upper trigger ring (504) moves downward and its bottom end contacts the top end of the lower trigger ring (505), the trigger drive motor (405) is turned on.

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

10. The method for preparing a petroleum resin modified rosin resin dispersion according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1, putting the rosin raw material block for preparing the petroleum resin modified rosin resin dispersion into the grinding cylinder (1) through the feeding port (13) and starting the power motor (3), and then the high-speed rotating grinding knife (2) preliminarily breaks the rosin raw material block; S2, start the first servo reduction motor, the discharging roller (11) drives the dividing plate (12) to slowly turn over the crushed rosin and feed it to the inside of the double-roll crusher (6) for roller crushing treatment, so as to ensure the stable feeding amount of the rosin to be crushed for the second time each time; S3, a double-roll crusher (6) performs secondary rolling crushing on the initially crushed rosin to obtain rosin particles required for preparing a petroleum resin-modified rosin resin dispersion; S4, the rosin particles slide down the inclined surfaces of the first sliding ramp (402) and the second sliding ramp (403) to the vertical filter hole (409), and the rosin particles pass through the vertical filter hole (409) and then slide down along the conical surface of the truncated cone outer cover (406) to the inside of the powder discharge port (14); S5, filtering and intercepting the rosin fragments that are not fully crushed by the roller crusher (6) through the vertical filter hole (409), when the crushed rosin particles slide into the vertical filter hole (409) and cause the vertical filter hole (409) to be blocked, affecting the normal feeding of the preparation of the petroleum resin modified rosin resin dispersion, the filter plate (401) on which the crushed rosin raw materials are continuously accumulated drives the lower pressure rod (407) to continuously increase the downward pressure on the trigger driving member, and when the upper trigger ring (504) that moves downward contacts the lower trigger ring (505), the actuator in the trigger hole is started; S6, after the actuator in the hole is started, the driving motor (405) drives the hole cleaning spiral blade (410) to discharge the rosin particle raw material blocked in the vertical filter hole (409) in a spiral downward, and the arc scraper (414) which is closely attached to the inner wall of the vertical filter hole (409) and rotates with the processing shaft under the action of the spring scrapes off the rosin adhering to the inner wall of the vertical filter hole (409); S7. Put the rosin particles into a reactor, stir and heat to melt under the protection of CO2, add maleic anhydride when the temperature reaches 190℃~195℃, and keep it 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 into the reactor respectively, heat it up for esterification, and when the acid value of the reaction material in the reactor is ≤130mgKOH / g, cool it down to 1 00℃~150℃, add hydrophilic reagent, cool to 100℃~105℃ and keep warm for 10min, then increase the stirring speed to 600r / min~800r / min, add 90℃~98℃ hot water, cool to 90℃~98℃ and keep warm for 1min~5min, then reduce the stirring speed to 50r / min~150r / min and quickly discharge the material, let the material cool to below 40℃ within 10min, filter, and obtain a petroleum resin modified rosin resin dispersion.

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