Reaction kettle for preparing rosin

Abstract

The invention discloses a reaction kettle for rosin preparation, and relates to the technical field of reaction kettles.The reaction kettle comprises a reaction tank, a supporting frame is fixedly installed at the bottom of the reaction tank, a heating device is arranged on the circumferential face of the reaction tank, a feeding pipe is fixedly installed at the top of the reaction tank, and a stirring device is arranged in the reaction tank; a chemical adding device is arranged at the top of the reaction tank, a ventilating device is arranged at the front part of the reaction tank, the stirring device comprises a motor, a rotating shaft, a gear I, a rotating rod, a stirring rod, a gear II, a long rod and a scraping rod, the motor is fixedly mounted at the top of the reaction tank, the rotating shaft is fixedly mounted at the output end of the motor, and the rotating shaft is fixedly mounted at the output end of the long rod. Raw materials and other agents or materials are fully stirred through rotation of the stirring rod, heat can be evenly distributed in the whole reaction tank, local overheating or cooling is prevented, and therefore it is ensured that the pine resin does not react unevenly in the heating process, and component precipitation or caking is prevented.

Description

Technical Field

[0001] This invention relates to the field of reaction vessel technology, specifically to a reaction vessel for rosin preparation. Background Technology

[0002] The reaction vessel for rosin preparation is usually used to heat-treat, distill or chemically react pine resin to extract or convert it into rosin.

[0003] Patent publication number CN221619450U relates to the field of reaction vessel technology. This patent discloses a reaction vessel for rosin preparation, including a heat-insulating outer shell and a reaction vessel body. The reaction vessel body is rotatably connected to the inner wall of the heat-insulating outer shell. The bottom of the reaction vessel body extends through and to the bottom of the heat-insulating outer shell. A feed hopper is fixedly connected to the top of the heat-insulating outer shell, and the bottom end of the feed hopper extends through the heat-insulating outer shell and into the interior of the reaction vessel body. A ring-shaped electric heater is installed on the inner wall of the heat-insulating outer shell. This invention, by setting a heat-insulating outer shell and a ring-shaped electric heater outside the reaction vessel body, can melt the raw materials for rosin preparation, thus facilitating mixing. Equipped with a pressure relief valve and a temperature sensor, it can achieve precise temperature control, thereby improving the quality of rosin preparation. Simultaneously, through the action of transmission gears, the synchronous shaft rotates in the opposite direction to the rotation of the reaction vessel body, thereby causing multiple sets of mixing rods and mixing plates to move in different directions to fully mix the internal raw materials.

[0004] In the aforementioned patent, the synchronous shaft rotates in the opposite direction to the reaction vessel body through the action of the transmission gear. As a result, multiple sets of mixing rods and mixing plates move in different directions to fully mix the internal raw materials. However, when preparing rosin, it is difficult to stir the rosin inside the reaction vessel and scrape off the rosin adhering to the inner wall of the reaction vessel. This can easily cause the rosin to stick to the inner wall of the reaction vessel, affecting the preparation of rosin and leading to preparation failure. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a reaction vessel for rosin preparation, which solves the problems mentioned in the background section.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solution: a reaction vessel for rosin preparation, comprising: a reaction vessel, a support frame fixedly installed at the bottom of the reaction vessel, a heating device provided on the circumferential surface of the reaction vessel, a feed pipe fixedly installed at the top of the reaction vessel, a stirring device provided inside the reaction vessel, a dosing device provided at the top of the reaction vessel, and a ventilation device provided at the front of the reaction vessel;

[0007] The stirring device includes a motor, a rotating shaft, a first gear, a rotating rod, a stirring rod, a second gear, a long rod, and a scraper. The motor is fixedly installed on the top of the reaction tank. The rotating shaft is fixedly installed on the output end of the motor. The first gear is fixedly installed on the circumferential surface of the rotating shaft away from the output end of the motor. The rotating rod is rotatably installed on the top of the inner wall of the reaction tank. The stirring rod is fixedly installed on the circumferential surface of the rotating rod. The second gear is fixedly installed on the top of the rotating rod. The long rod is fixedly installed on the circumferential surface of the rotating shaft. The scraper is fixedly installed on the end of the long rod away from the rotating shaft. The motor drives the rotating shaft to start rotating. The rotation of the rotating shaft drives the first gear to start rotating. The rotation of the first gear drives the second gear to start rotating. The rotation of the second gear drives the rotating rod to start rotating. The rotation of the rotating rod drives the stirring rod to start rotating.

[0008] According to the above technical solution, gear one meshes with gear two, and the scraper contacts the inner wall of the reaction tank. The meshing ensures that gear one can drive gear two to rotate when it rotates, and the contact ensures that the scraper can clean the inner wall of the reaction tank when it rotates.

[0009] According to the above technical solution, the dosing device includes a top rod, a rack, a reagent tank, a threaded rod, a third gear, a base plate, a connecting rod, and a top plate. The top rod is fixedly installed on the top of the long rod, the rack is fixedly installed on the top of the top rod, the reagent tank is fixedly installed on the top of the reaction vessel, the threaded rod is rotatably installed inside the reagent tank, the third gear is fixedly installed at the bottom of the threaded rod, the base plate is threaded onto the circumferential surface of the threaded rod, the connecting rod is fixedly installed on the top of the base plate, and the top plate is fixedly installed on the top of the connecting rod. The rotation of the long rod drives the scraper to rotate, which in turn drives the top rod to rotate. The rotation of the top rod drives the rack to rotate, which in turn drives the third gear to rotate. The rotation of the third gear drives the threaded rod to rotate, and the rotation of the threaded rod causes the base plate to move downward.

[0010] According to the above technical solution, the dosing device further includes a fixed rod and a stirring plate. The fixed rod is fixedly installed on the circumferential surface of the threaded rod, and the stirring plate is fixedly installed on the end of the fixed rod away from the threaded rod. When the threaded rod rotates, it drives the fixed rod to start rotating. The rotation of the fixed rod drives the stirring plate to start rotating. The rotation of the stirring plate fully stirs the medicine inside the medicine tank.

[0011] According to the above technical solution, the rack meshes with the gear three, the base plate contacts the inner wall of the medicine box, and the threaded rod is provided with a torsion spring. The meshing ensures that the rack can drive the gear three to rotate when it rotates, the contact ensures that the base plate can control the opening and closing of the medicine box, and the torsion spring ensures that the threaded rod can achieve automatic rotation and reset.

[0012] According to the above technical solution, the ventilation device includes a slide rail, a closed door, a ventilation duct, an electric telescopic rod, and a fan. The slide rail is fixedly installed on the inner wall of the reaction tank, the closed door is slidably installed inside the slide rail, the ventilation duct is fixedly installed on the front circumference of the reaction tank, the electric telescopic rod is fixedly installed inside the ventilation duct, and the fan is installed inside the ventilation duct. When ventilation and heat dissipation are required inside the reaction tank after rosin preparation, the operator starts the electric telescopic rod, which drives the closed door to move along the extension direction of the slide rail. The closed door moves to open the channel between the ventilation duct and the reaction tank, and then the fan starts to blow air outward.

[0013] According to the above technical solution, the ventilation device further includes a filter plate, a clamping plate, an elastic telescopic rod, a clamping block, and a pull plate. The filter plate is slidably installed inside the ventilation pipe. The clamping plate is fixedly installed on the right side of the filter plate. The elastic telescopic rod is fixedly installed on the right side of the ventilation pipe. The clamping block is fixedly installed on the movable end of the elastic telescopic rod. The pull plate is fixedly installed on the right side of the clamping block. By pulling the pull plate, the pull plate causes the clamping block to start moving. The clamping block moves and disengages from the clamping plate, thereby releasing the restriction on the filter plate.

[0014] According to the above technical solution, the closed door is fixedly connected to the output end of the electric telescopic rod, and the card plate is in contact with the card block. The fixed connection ensures that the electric telescopic rod can drive the closed door to move, and the contact ensures that the card plate can restrict the card block.

[0015] This invention provides a reaction vessel for rosin preparation. It has the following beneficial effects:

[0016] (1) The invention uses a stirring rod to stir the raw materials and other agents or materials thoroughly, which helps to distribute heat evenly throughout the reaction vessel, prevents local overheating or cooling, and ensures that the pine resin does not react unevenly during heating, prevents the components from precipitating or clumping. The rotating scraper removes the raw materials that may stick to the inner wall of the reaction vessel, avoiding the raw materials from not being able to fully participate in the reaction due to adhesion to the inner wall of the reaction vessel, thereby reducing waste, ensuring that the reactants are in full contact, improving the uniformity and speed of the reaction, and at the same time, avoiding uneven temperature and pressure caused by the accumulation of raw materials on the vessel wall, thereby improving the stability of the reaction process.

[0017] (2) The invention allows the reagent inside the reagent tank to be added quantitatively into the reaction vessel by moving the top plate and bottom plate downwards. This ensures that the effect of the reagent is within a predetermined range, thereby controlling the reaction process, avoiding the reaction being too fast or too slow, helping to control the complete consumption of the reagent in the reaction, and reducing residues and impurities.

[0018] (3) The invention uses a rotating stirring plate to fully stir the reagent inside the reagent tank, preventing the reagent from accumulating or settling in a certain position. This helps the reagent to fully contact the reactants, improves the reaction efficiency, and helps the reagent dissolve faster and more completely, avoiding incomplete dissolution that leads to a decrease in reaction efficiency.

[0019] (4) The invention can effectively promote the flow of hot air and accelerate the diffusion of heat by starting the fan to blow air outward, thus ensuring that the temperature inside the reaction vessel is reduced evenly, thereby avoiding the influence of excessive temperature difference on the properties of rosin. At the same time, it helps the air to circulate, making the temperature more evenly distributed and reducing the generation of thermal stress. By cleaning the filter plate or replacing it with a brand new filter plate, it can ensure that the filter plate can always maintain a good adsorption effect. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 This is a cross-sectional view of the overall structure of the present invention;

[0022] Figure 3 This is a cross-sectional schematic diagram of the stirring device structure of the present invention;

[0023] Figure 4 This is a cross-sectional schematic diagram of the connection structure between the long rod and the scraper rod of the present invention;

[0024] Figure 5 This is a cross-sectional schematic diagram of the drug-adding device of the present invention;

[0025] Figure 6 This is a cross-sectional schematic diagram of the connection structure between the fixing rod and the stirring plate of the present invention;

[0026] Figure 7 This is a cross-sectional schematic diagram of the ventilation device structure of the present invention;

[0027] Figure 8 This is a cross-sectional schematic diagram of the connection structure between the slide rail and the closed door of the present invention.

[0028] In the diagram: 1. Reaction vessel; 2. Support frame; 3. Heating device; 4. Feed pipe; 5. Motor; 6. Rotating shaft; 7. Gear 1; 8. Rotating rod; 9. Stirring rod; 10. Gear 2; 11. Long rod; 12. Scraper; 131. Top rod; 132. Rack; 133. Reagent tank; 134. Threaded rod; 135. Gear 3; 136. Bottom plate; 137. Connecting rod; 138. Top plate; 139. Fixing rod; 1310. Stirring plate; 141. Slide rail; 142. Sealing door; 143. Ventilation pipe; 144. Electric telescopic rod; 145. Fan; 146. Filter plate; 147. Clamping plate; 148. Elastic telescopic rod; 149. Clamping block; 1410. Pulling plate. Detailed Implementation

[0029] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] Please see Figures 1-8 One embodiment of the present invention is: a reaction vessel for rosin preparation, comprising: a reaction vessel 1, a support frame 2 fixedly installed at the bottom of the reaction vessel 1, a heating device 3 provided on the circumferential surface of the reaction vessel 1, a feed pipe 4 fixedly installed at the top of the reaction vessel 1, and a stirring device provided inside the reaction vessel 1.

[0031] The stirring device includes a motor 5, a rotating shaft 6, a gear 7, a rotating rod 8, a stirring rod 9, a gear 10, a long rod 11, and a scraper 12. The motor 5 is fixedly installed on the top of the reaction tank 1, the rotating shaft 6 is fixedly installed on the output end of the motor 5, the gear 7 is fixedly installed on the circumferential surface of the rotating shaft 6 away from the output end of the motor 5, the rotating rod 8 is rotatably installed on the top of the inner wall of the reaction tank 1, the stirring rod 9 is fixedly installed on the circumferential surface of the rotating rod 8, the gear 10 is fixedly installed on the top of the rotating rod 8, the long rod 11 is fixedly installed on the circumferential surface of the rotating shaft 6, and the scraper 12 is fixedly installed on the end of the long rod 11 away from the rotating shaft 6. By rotating the stirring rod 9, the raw materials are thoroughly stirred with other agents or materials, which helps to evenly distribute heat throughout the entire reaction tank 1, preventing local overheating or cooling, thereby ensuring that the pine resin does not react unevenly during the heating process and preventing the components from precipitating or clumping.

[0032] Gear 1 7 meshes with gear 2 10, and scraper 12 contacts the inner wall of reaction vessel 1. The meshing ensures that gear 1 7 can drive gear 2 10 to rotate when it rotates, and the contact ensures that scraper 12 can clean the inner wall of reaction vessel 1 when it rotates.

[0033] In this embodiment, the following steps are taken: Before rosin preparation begins, a professional inspector must check the reaction vessel. After the inspection confirms everything is correct, rosin preparation begins. The necessary raw materials are added into the reaction vessel 1 through the feed pipe 4. After adding the raw materials, the feed pipe 4 is closed, sealing the reaction vessel 1. The heating device 3 is then activated, heating the raw materials inside the reaction vessel 1 to induce a reaction. After the reaction is complete, the prepared rosin is removed from the reaction vessel 1. Simultaneously with the heating of the raw materials, the motor 5 is started, driving the rotating shaft 6 to rotate. The rotation of the rotating shaft 6 drives gear 7 to rotate, which in turn drives gear 10 to rotate. Rotating rod 8 begins to rotate, which in turn drives stirring rod 9 to rotate. Stirring rod 9 thoroughly mixes the raw materials with other agents or materials, helping to evenly distribute heat throughout the reaction vessel 1 and preventing localized overheating or cooling. This ensures that the pine resin does not react unevenly during heating, preventing component precipitation or clumping. Simultaneously, rotating shaft 6 drives long rod 11 to rotate, which in turn drives scraper 12 to rotate. Scraper 12 scrapes away any raw materials that may adhere to the inner wall of reaction vessel 1, preventing raw materials from not fully participating in the reaction due to adhesion to the inner wall, thus reducing waste, ensuring sufficient contact of reactants, improving the uniformity and speed of the reaction, and preventing uneven temperature and pressure caused by raw materials accumulating on the vessel wall, thereby improving the stability of the reaction process.

[0034] Please see Figure 1 - Figure 8 Based on the above embodiments, in another embodiment of the present invention, a dosing device is provided on the top of the reaction vessel 1, and a ventilation device is provided at the front of the reaction vessel 1.

[0035] The dosing device includes a top rod 131, a rack 132, a reagent tank 133, a threaded rod 134, a gear 135, a base plate 136, a connecting rod 137, and a top plate 138. The top rod 131 is fixedly installed on the top of the long rod 11, the rack 132 is fixedly installed on the top of the top rod 131, the reagent tank 133 is fixedly installed on the top of the reaction vessel 1, the threaded rod 134 is rotatably installed inside the reagent tank 133, the gear 135 is fixedly installed at the bottom of the threaded rod 134, the base plate 136 is threaded onto the circumferential surface of the threaded rod 134, the connecting rod 137 is fixedly installed on the top of the base plate 136, and the top plate 138 is fixedly installed on the top of the connecting rod 137. By moving the top plate 138 and the base plate 136 downwards, the reagent inside the reagent tank 133 is quantitatively added into the reaction vessel 1. This ensures that the action of the reagent is within a predetermined range, thereby controlling the reaction process, avoiding the reaction being too fast or too slow, helping to control the complete consumption of the reagent in the reaction, and reducing residues and impurities.

[0036] The dosing device also includes a fixing rod 139 and a stirring plate 1310. The fixing rod 139 is fixedly installed on the circumferential surface of the threaded rod 134, and the stirring plate 1310 is fixedly installed on the end of the fixing rod 139 away from the threaded rod 134. By rotating the stirring plate 1310, the reagent inside the reagent tank 133 is stirred thoroughly, preventing the reagent from accumulating or settling in a certain position. This helps the reagent to fully contact the reactants, improves the reaction efficiency, and helps the reagent dissolve faster and more completely, avoiding incomplete dissolution that leads to a decrease in reaction efficiency.

[0037] The rack 132 meshes with the gear 135, the base plate 136 contacts the inner wall of the medicine box 133, and the threaded rod 134 is equipped with a torsion spring. The meshing ensures that the rack 132 can drive the gear 135 to rotate when it rotates, the contact ensures that the base plate 136 can control the opening and closing of the medicine box 133, and the torsion spring ensures that the threaded rod 134 can achieve automatic rotation and reset.

[0038] The ventilation device includes a slide rail 141, a sealing door 142, a ventilation pipe 143, an electric telescopic rod 144, and a fan 145. The slide rail 141 is fixedly installed on the inner wall of the reaction vessel 1. The sealing door 142 is slidably installed inside the slide rail 141. The ventilation pipe 143 is fixedly installed on the front of the circumference of the reaction vessel 1. The electric telescopic rod 144 is fixedly installed inside the ventilation pipe 143. The fan 145 is located inside the ventilation pipe 143. When the fan 145 is activated, it blows air outward, which can effectively promote the flow of hot air, accelerate the diffusion of heat, and ensure that the temperature inside the reaction vessel 1 decreases evenly, thereby avoiding the impact of excessive temperature difference on the properties of rosin. At the same time, it helps air circulation, makes the temperature more evenly distributed, and reduces the generation of thermal stress.

[0039] The ventilation device also includes a filter plate 146, a clamping plate 147, an elastic telescopic rod 148, a clamping block 149, and a pull plate 1410. The filter plate 146 is slidably installed inside the ventilation pipe 143. The clamping plate 147 is fixedly installed on the right side of the filter plate 146. The elastic telescopic rod 148 is fixedly installed on the right side of the ventilation pipe 143. The clamping block 149 is fixedly installed on the movable end of the elastic telescopic rod 148. The pull plate 1410 is fixedly installed on the right side of the clamping block 149. By cleaning the filter plate 146 or replacing it with a brand new filter plate 146, it is ensured that the filter plate 146 can always maintain a good adsorption effect.

[0040] The closed door 142 is fixedly connected to the output end of the electric telescopic rod 144, and the locking plate 147 is in contact with the locking block 149. The fixed connection ensures that the electric telescopic rod 144 can drive the closed door 142 to move, and the contact ensures that the locking plate 147 can restrict the locking block 149.

[0041] In this embodiment, during operation: the rotation of the long rod 11 drives the scraper 12 to rotate, simultaneously causing the top rod 131 to rotate. The rotation of the top rod 131 drives the rack 132 to rotate, which in turn drives the gear 135 to rotate. The rotation of the gear 135 drives the threaded rod 134 to rotate, which in turn causes the bottom plate 136 to move downwards. The movement of the bottom plate 136 causes the connecting rod 137 to move downwards, which in turn causes the top plate 138 to move downwards. The downward movement of the top plate 138 and the bottom plate 136 adds a measured amount of reagent from the reagent tank 133 into the reaction vessel 1. This ensures that the action of the reagent is within a predetermined range, thereby controlling the reaction process, avoiding reactions that are too fast or too slow, helping to control the complete consumption of the reagent in the reaction, reducing residues and impurities. While the threaded rod 134 rotates, it drives the fixed rod 139 to start rotating. The rotation of the fixed rod 139 drives the stirring plate 1310 to start rotating. The rotation of the stirring plate 1310 thoroughly stirs the reagent inside the reagent tank 133, preventing the reagent from accumulating in a certain position or settling. This helps the reagent to fully contact the reactants, improving reaction efficiency. At the same time, it helps the reagent dissolve faster and more completely, avoiding incomplete dissolution that leads to a decrease in reaction efficiency.

[0042] After rosin preparation is completed, when ventilation and heat dissipation are required inside reaction vessel 1, the operator activates the electric telescopic rod 144. This causes the electric telescopic rod 144 to move the sealing door 142 along the extension direction of the slide rail 141. The moving sealing door 142 opens the passage between the ventilation pipe 143 and reaction vessel 1. Subsequently, the fan 145 starts blowing air outwards, effectively promoting the flow of hot air, accelerating heat diffusion, and ensuring a uniform temperature reduction inside reaction vessel 1. This avoids excessive temperature differences affecting the properties of the rosin, while also aiding air circulation, resulting in a more uniform temperature distribution and reducing thermal stress. When the internal gas is discharged through the ventilation duct 143, it passes through the filter plate 146. The filter plate 146 filters out some harmful substances in the gas. When the filter plate 146 needs to be replaced after the work is completed, the staff needs to manually pull the pull plate 1410, so that the pull plate 1410 drives the locking block 149 to move. The locking block 149 moves and disengages from the locking plate 147, thereby releasing the restriction on the filter plate 146. At this time, the staff can pull the filter plate 146 out of the ventilation duct 143, clean the filter plate 146 or replace it with a brand new filter plate 146 to ensure that the filter plate 146 can always maintain a good adsorption effect.

[0043] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A reaction vessel for rosin preparation, characterized in that, include: The reaction vessel (1) is fixedly installed with a support frame (2) at the bottom. A heating device (3) is provided on the circumferential surface of the reaction vessel (1). A feed pipe (4) is fixedly installed on the top of the reaction vessel (1). A stirring device is provided inside the reaction vessel (1). A dosing device is provided on the top of the reaction vessel (1). A ventilation device is provided at the front of the reaction vessel (1). The stirring device includes a motor (5), a rotating shaft (6), a first gear (7), a rotating rod (8), a stirring rod (9), a second gear (10), a long rod (11), and a scraper (12). The motor (5) is fixedly installed on the top of the reaction tank (1). The rotating shaft (6) is fixedly installed on the output end of the motor (5). The first gear (7) is fixedly installed on the circumferential surface of the rotating shaft (6) away from the output end of the motor (5). The rotating rod (8) is rotatably installed on the top of the inner wall of the reaction tank (1). The stirring rod (9) is fixedly installed on the circumferential surface of the rotating rod (8). The second gear (10) is fixedly installed on the top of the rotating rod (8). The long rod (11) is fixedly installed on the circumferential surface of the rotating shaft (6). The scraper (12) is fixedly installed on the end of the long rod (11) away from the rotating shaft (6).

2. The reaction vessel for rosin preparation according to claim 1, characterized in that: The first gear (7) meshes with the second gear (10), and the scraper (12) contacts the inner wall of the reaction vessel (1).

3. The reaction vessel for rosin preparation according to claim 1, characterized in that: The dosing device includes a top rod (131), a rack (132), a reagent tank (133), a threaded rod (134), a gear three (135), a base plate (136), a connecting rod (137), and a top plate (138). The top rod (131) is fixedly installed on the top of the long rod (11), the rack (132) is fixedly installed on the top of the top rod (131), the reagent tank (133) is fixedly installed on the top of the reaction vessel (1), the threaded rod (134) is rotatably installed inside the reagent tank (133), the gear three (135) is fixedly installed at the bottom of the threaded rod (134), the base plate (136) is threaded onto the circumferential surface of the threaded rod (134), the connecting rod (137) is fixedly installed on the top of the base plate (136), and the top plate (138) is fixedly installed on the top of the connecting rod (137).

4. The reaction vessel for rosin preparation according to claim 3, characterized in that: The dosing device also includes a fixing rod (139) and a stirring plate (1310). The fixing rod (139) is fixedly installed on the circumferential surface of the threaded rod (134), and the stirring plate (1310) is fixedly installed at the end of the fixing rod (139) away from the threaded rod (134).

5. The reaction vessel for rosin preparation according to claim 4, characterized in that: The rack (132) meshes with the gear three (135), the base plate (136) contacts the inner wall of the medicine box (133), and a torsion spring is provided inside the threaded rod (134).

6. The reaction vessel for rosin preparation according to claim 1, characterized in that: The ventilation device includes a slide rail (141), a closed door (142), a ventilation pipe (143), an electric telescopic rod (144), and a fan (145). The slide rail (141) is fixedly installed on the inner wall of the reaction tank (1). The closed door (142) is slidably installed inside the slide rail (141). The ventilation pipe (143) is fixedly installed on the front of the circumference of the reaction tank (1). The electric telescopic rod (144) is fixedly installed inside the ventilation pipe (143). The fan (145) is located inside the ventilation pipe (143).

7. The reaction vessel for rosin preparation according to claim 6, characterized in that: The ventilation device also includes a filter plate (146), a clamping plate (147), an elastic telescopic rod (148), a clamping block (149), and a pull plate (1410). The filter plate (146) is slidably installed inside the ventilation pipe (143). The clamping plate (147) is fixedly installed on the right side of the filter plate (146). The elastic telescopic rod (148) is fixedly installed on the right side of the ventilation pipe (143). The clamping block (149) is fixedly installed on the movable end of the elastic telescopic rod (148). The pull plate (1410) is fixedly installed on the right side of the clamping block (149).

8. The reaction vessel for rosin preparation according to claim 7, characterized in that: The closed door (142) is fixedly connected to the output end of the electric telescopic rod (144), and the card plate (147) is in contact with the card block (149).

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