Reaction device for processing salicylamide

Abstract

The invention relates to the technical field of salicylamide processing, and provides a reaction device for processing salicylamide, the reaction device comprises a reaction tank and support legs, the top end of the reaction tank is fixedly provided with a cover body, and the top end of the cover body is provided with a driving motor. By arranging a mixing structure, a stirring shaft drives a driving fluted disc to rotate in a shell, the driving fluted disc drives a driven fluted disc to rotate through a bevel gear, and at the moment, the driven fluted disc drives a frame body to rotate in a reaction tank through a connecting seat; the frame body can drive the first rubber scraping plate and the second rubber scraping plate to scrape the inner side of the reaction tank, attached materials can be conveniently removed, meanwhile, the auxiliary stirring blades can be driven to stir the materials in the reaction tank, the rotating directions of the auxiliary stirring blades and the main stirring blades are opposite, and therefore a fixed flow field formed by the main stirring blades can be destroyed, and the stirring effect is improved. The reaction device for processing salicylamide realizes the function of facilitating uniform mixing, so that the working efficiency of the reaction device for processing salicylamide in use is improved.

Description

A reaction apparatus for processing salicylamide Technical Field

[0001] This invention relates to the field of salicylamide processing technology, and in particular to a reaction apparatus for processing salicylamide. Background Technology

[0002] Salicylate is an organic compound and an important pharmaceutical intermediate used in the preparation of antipyretic analgesics, antirheumatic drugs, etc. To facilitate rapid reaction during salicylate processing, a reaction apparatus is used. Patent CN114713179A discloses a processing device and method based on salicylate, comprising: a reaction vessel, horizontally positioned, with a first drive mechanism externally connected to the vessel for rotating it; a feeding cylinder connected to one end of the reaction vessel, with a detachable first sealing cap at the end away from the vessel; and a stirring rod horizontally passing through the vessel and rotatably connected to it in a sealed manner, with stirring blades on the rod. A second drive mechanism is located at one end of the stirring rod for rotating it, and the stirring rod rotates in the opposite direction to the reaction vessel. The present invention can improve production efficiency; although the above-mentioned processing equipment and method based on salicylamide can improve production efficiency when used, it is inconvenient to mix evenly, inconvenient to disrupt the fixed flow field formed by the stirring blades, and inconvenient to improve reaction efficiency, resulting in low working efficiency when used. Summary of the Invention

[0003] The purpose of this invention is to provide a reaction apparatus for processing salicylamide, thereby overcoming the shortcomings of existing reaction apparatuses for processing salicylamide, which are inconvenient for uniform mixing.

[0004] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a reaction apparatus for processing salicylamide, comprising a reaction vessel and support legs; a cover is fixed to the top of the reaction vessel, a drive motor is installed on the top of the cover, a feed pipe is fixed to one side of the top of the cover, a heating structure is provided on the outer side of the bottom of the reaction vessel, and support legs are uniformly fixed on the outer side of the bottom of the heating structure; a discharge pipe is fixed to the bottom of the reaction vessel, a stirring structure is provided inside the reaction vessel; a mixing structure is provided at the top of the reaction vessel, the mixing structure comprising a shell disposed at the top of the reaction vessel, a support plate is fixed to one side of the top of the shell, and a bevel gear is rotatably connected to the bottom of the support plate.

[0005] When using this device, the mixing structure facilitates uniform mixing, thereby improving the working efficiency of the reaction device for processing salicylamide; the heating structure facilitates auxiliary reaction, thereby improving the applicability of the reaction device for processing salicylamide; and the stirring structure facilitates thorough stirring, thereby improving the convenience of use.

[0006] Preferably, the heating structure includes a heating base, an inlet pipe, a heating chamber, a coil groove, and an exhaust pipe. The heating base is fixed to the outer side of the bottom of the reaction vessel, and a heating chamber is provided inside the heating base. An inlet pipe is fixed to one side of the top of the heating base, and an exhaust pipe is fixed to the other side of the top of the heating base. A coil groove is formed on the outer wall of the reaction vessel on one side of the heating chamber. The flange facilitates the connection of external hot steam, which then enters the interior of the heating chamber through the inlet pipe, allowing the hot steam to circulate within the heating chamber.

[0007] Preferably, the inlet pipe and the outlet pipe are each equipped with a one-way valve, and flanges are fixed to the ends of the inlet pipe and the outlet pipe away from the heating base. The outer wall of the heating base is fixedly connected to the top of the support leg. The coil groove increases the heat conduction area, thereby improving heat conduction efficiency and transferring heat to the materials inside the reaction tank. This promotes the reaction of the materials inside the reaction tank. After heat exchange, the waste steam is discharged through the outlet pipe, achieving continuous heat supply and waste gas discharge.

[0008] Preferably, a cover is threaded onto the outer side of the top of the feed pipe, and the bottom end of the discharge pipe extends to the outside of the heating base. A discharge valve is installed inside the discharge pipe. By opening the discharge valve, the material inside the reaction vessel will be discharged through the discharge pipe. When the cover is turned counterclockwise, the cover separates from the feed pipe, allowing the material to enter the interior of the reaction vessel through the feed pipe. When the cover is turned clockwise, the cover and the feed pipe are fixed together.

[0009] Preferably, the stirring structure includes a stirring shaft, a main stirring blade, a conical paddle, a connecting rod, and a through hole. The stirring shaft is disposed inside the reaction vessel. The main stirring blade is uniformly fixed on the outer wall of the stirring shaft. The connecting rod is uniformly fixed on the outer side of the bottom of the stirring shaft. A conical paddle is fixed to one end of each connecting rod. The through hole is uniformly penetrating the interior of the main stirring blade.

[0010] Preferably, the top end of the stirring shaft passes through the shell and cover and is fixedly connected to the output end of the drive motor, and the conical paddle is designed with an inclination. When the stirring shaft rotates, it drives the main stirring blades to rotate. These blades are evenly distributed through through holes, which reduces the resistance of the main stirring blades during rotation. Under the action of the main stirring blades, the materials inside the reaction vessel are stirred, ensuring uniform heating and avoiding local overheating or uneven temperature.

[0011] Preferably, the through holes are evenly distributed inside the main stirring blade. The inclined design of the conical impeller effectively agitates materials that tend to settle at the bottom of the reaction vessel, ensuring material uniformity throughout the entire interior of the reaction vessel and thus enabling thorough mixing of the materials inside.

[0012] Preferably, a drive gear is fixed on the outer wall of the stirring shaft at the top of the housing, a connecting seat is provided on the outer side of the stirring shaft at the bottom of the housing, a driven gear is fixed at the top of the connecting seat, a frame is fixed on the outer side of the connecting seat, a first rubber scraper is fixed on both sides of the frame, a second rubber scraper is fixed on both sides of the bottom end of the frame, and auxiliary stirring blades are evenly fixed on both sides inside the frame.

[0013] Preferably, the bevel gear meshes with both the driving and driven gear discs, and the top of the housing is fixedly connected to the bottom of the cover. When the stirring shaft is working, it drives the driving gear disc to rotate inside the housing, which in turn drives the bevel gear to rotate inside the support plate. This causes the bevel gear to drive the driven gear disc to rotate, which in turn drives the connecting seat to rotate inside the housing. The connecting seat then drives the frame to rotate inside the reaction vessel. At this point, the frame and the stirring shaft rotate in opposite directions, which in turn causes the auxiliary stirring blades to rotate in opposite directions to the main stirring blades.

[0014] Preferably, the auxiliary stirring blades are designed with an inclination and are symmetrically distributed on both sides inside the reaction vessel. The connecting seat and the shell form a rotating structure. Furthermore, the frame will drive the first and second rubber scrapers to scrape the inner wall of the reaction vessel. Under the action of the first and second rubber scrapers, it is convenient to remove the attached material, and at the same time, it will drive the auxiliary stirring blades to stir the material inside the reaction vessel. The inclination design of the auxiliary stirring blades reduces the resistance of the auxiliary stirring blades during rotation. Since the auxiliary stirring blades rotate in the opposite direction to the main stirring blades, the fixed flow field formed by the main stirring blades can be disrupted, thereby solving the mixing dead zones of traditional unidirectional stirring.

[0015] This invention provides a reaction apparatus for processing salicylamide, which has the following advantages: By incorporating a mixing structure, when the stirring shaft is operating, it drives the active gear disc to rotate inside the housing. The active gear disc, through a bevel gear, drives the driven gear disc to rotate. Simultaneously, the driven gear disc, through a connecting seat, drives the frame to rotate inside the reaction vessel. The frame and the stirring shaft rotate in opposite directions. Furthermore, the frame drives the first and second rubber scrapers to scrape the inner wall of the reaction vessel, facilitating the removal of adhering materials. Simultaneously, it drives the auxiliary stirring blades to stir the materials inside the reaction vessel. Because the auxiliary stirring blades rotate in opposite directions to the main stirring blades, the fixed flow field formed by the main stirring blades is disrupted, thus solving the mixing dead zones inherent in traditional unidirectional stirring. This achieves the function of easy and uniform mixing, thereby improving the working efficiency of the reaction apparatus for processing salicylamide. Furthermore, by incorporating a heating structure, the flange facilitates the connection of external hot steam. The hot steam enters the heating chamber through the inlet pipe. The device circulates hot steam within the heating chamber, increasing the heat transfer area through the coiled tubing and thus improving heat transfer efficiency. This allows heat to be transferred to the materials inside the reaction vessel, promoting the reaction process. Waste steam after heat exchange is discharged through the exhaust pipe, facilitating the auxiliary reaction and enhancing the applicability of the device for processing salicylamide. The device also features a stirring structure; the rotating shaft drives the main stirring blades, and the through-holes reduce the resistance of the blades during rotation. The main stirring blades effectively agitate the materials inside the reaction vessel. The inclined conical paddle design effectively stirs up easily deposited materials at the bottom of the vessel, ensuring uniform material distribution throughout the vessel and facilitating thorough agitation. This enhances the ease of use of the device for processing salicylamide. Attached Figure Description

[0016] Figure 1 is a three-dimensional schematic diagram of the present invention; Figure 2 is a three-dimensional first-view schematic diagram of the main cross-section of the present invention; Figure 3 is a three-dimensional schematic diagram of the left side cross-section of the present invention; Figure 4 is a three-dimensional schematic diagram of the right side cross-section of the present invention; Figure 5 is a three-dimensional schematic diagram of the top cross-section of the present invention; Figure 6 is a three-dimensional schematic diagram of the stirring structure of the present invention; Figure 7 is a three-dimensional schematic diagram of the mixing structure of the present invention from the main cross-section; Figure 8 is an enlarged schematic diagram of point A in Figure 7 of the present invention; Figure 9 is a three-dimensional schematic diagram of the stirring structure of the present invention from a bottom view; Figure 10 is a three-dimensional second-view schematic diagram of the main cross-section of the present invention.

[0017] The following are the annotations in the figure: 1. Reaction vessel; 2. Heating structure; 201. Heating seat; 202. Air inlet pipe; 203. Heating chamber; 204. Coil groove; 205. Exhaust pipe; 3. Support leg; 4. Cover; 5. Drive motor; 6. Feed pipe; 7. Discharge pipe; 8. Stirring structure; 801. Stirring shaft; 802. Main stirring blade; 803. Conical impeller; 804. Connecting rod; 805. Through hole; 9. Mixing structure; 901. Shell; 902. Frame; 903. First rubber scraper; 904. Second rubber scraper; 905. Secondary stirring blade; 906. Driven gear disc; 907. Support plate; 908. Conical gear; 909. Connecting seat; 910. Driven gear disc. Detailed Implementation

[0018] 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.

[0019] Please refer to Figures 1-10. The present invention provides a reaction apparatus for processing salicylamide, comprising a reaction vessel 1 and support legs 3. A cover 4 is fixed to the top of the reaction vessel 1, and a drive motor 5 is mounted on the top of the cover 4. A feed pipe 6 is fixed to one side of the top of the cover 4. A heating structure 2 is provided on the outer side of the bottom of the reaction vessel 1. The heating structure 2 includes a heating base 201, an air inlet pipe 202, a heating chamber 203, a coil groove 204, and an exhaust pipe 205. The heating base 201 is fixed to the outer side of the bottom of the reaction vessel 1. The heating base 201 has a heating chamber 203 inside. An air inlet pipe 202 is fixed on one side of the top of the heating base 201, and an exhaust pipe 205 is fixed on the other side of the top of the heating base 201. A coil groove 204 is opened on the outer wall of the reaction vessel 1 on one side of the heating chamber 203. One-way valves are respectively installed inside the air inlet pipe 202 and the exhaust pipe 205. A flange is fixed at the end of the air inlet pipe 202 and the exhaust pipe 205 away from the heating base 201. The outer wall of the heating base 201 is fixedly connected to the top of the support leg 3.

[0020] Referring to Figures 1 and 2, the flange facilitates the connection of external hot steam. At this time, the hot steam enters the interior of the heating chamber 203 through the air inlet pipe 202, allowing the hot steam to circulate inside the heating chamber 203. Under the action of the coil groove 204, the heat conduction area is increased, thereby improving the heat conduction efficiency and transferring heat to the materials inside the reaction tank 1, thereby promoting the reaction of the materials inside the reaction tank 1. The waste steam after heat exchange is completed is discharged through the exhaust pipe 205.

[0021] The heating structure 2 has feet 3 evenly fixed on the outer side of its bottom. The bottom of the reaction tank 1 has a discharge pipe 7 fixed on it. The reaction tank 1 has a stirring structure 8 inside. The stirring structure 8 includes a stirring shaft 801, a main stirring blade 802, a conical paddle 803, a connecting rod 804, and a through hole 805. The stirring shaft 801 is located inside the reaction tank 1. The main stirring blade 802 is evenly fixed on the outer wall of the stirring shaft 801. The connecting rod 804 is evenly fixed on the outer side of the bottom of the stirring shaft 801. One end of the connecting rod 804 is fixed with a conical paddle 803. The main stirring blade 802 has through holes 805 evenly distributed inside it. The top of the stirring shaft 801 passes through the shell 901 and the cover 4 and is fixedly connected to the output end of the drive motor 5. The conical paddle 803 is designed with an inclination. The through holes 805 are evenly distributed inside the main stirring blade 802. The top of the feed pipe 6 is threaded with a cover. The bottom of the discharge pipe 7 extends to the outside of the heating base 201. The discharge pipe 7 has a discharge valve inside it.

[0022] Referring to Figures 6 and 7, starting the drive motor 5 causes the stirring shaft 801 to rotate inside the reaction tank 1. The stirring shaft 801 drives the main stirring blade 802 to rotate, and simultaneously drives the conical paddle 803 to rotate via the connecting rod 804. The through-hole 805 reduces the resistance of the main stirring blade 802 during rotation. Under the action of the main stirring blade 802, the material inside the reaction tank 1 is stirred, ensuring uniform heating and preventing localized overheating or uneven temperature distribution. The conical paddle 803 then... The inclined design, under the action of the conical paddle 803, can effectively agitate the materials that are easy to settle at the bottom of the reaction tank 1, thereby ensuring the uniformity of materials throughout the entire area inside the reaction tank 1, and thus enabling the materials inside the reaction tank 1 to be fully stirred. By opening the discharge valve, the materials inside the reaction tank 1 will be discharged through the discharge pipe 7. When the cover is turned counterclockwise, the cover and the feed pipe 6 are separated, allowing the materials to enter the interior of the reaction tank 1 through the feed pipe 6. When the cover is turned clockwise, the cover and the feed pipe 6 are fixed together.

[0023] A mixing structure 9 is provided on the top of the reaction vessel 1. The mixing structure 9 includes a shell 901 disposed on the top of the reaction vessel 1. A support plate 907 is fixed to one side of the top of the shell 901. A bevel gear 908 is rotatably connected to the bottom of the support plate 907. A drive gear 906 is fixed to the outer wall of the stirring shaft 801 at the top of the shell 901. A connecting seat 909 is provided on the outer side of the stirring shaft 801 at the bottom of the shell 901. A driven gear 910 is fixed to the top of the connecting seat 909. A frame 902 is fixed to the outer side of the connecting seat 909. The frame 902 has a first rubber scraper 903 fixed on both sides, and a second rubber scraper 904 fixed on both sides at the bottom of the frame 902. The auxiliary stirring blades 905 are evenly fixed on both sides inside the frame 902. The bevel gear 908 is meshed with the driving gear disk 906 and the driven gear disk 910. The top of the shell 901 is fixedly connected to the bottom of the cover 4. The auxiliary stirring blades 905 are designed to be inclined. The auxiliary stirring blades 905 are symmetrically distributed on both sides inside the reaction vessel 1. The connecting seat 909 and the shell 901 form a rotating structure.

[0024] Referring to Figures 7 and 8, when the stirring shaft 801 is working, it drives the active gear disc 906 to rotate inside the housing 901. The active gear disc 906 drives the bevel gear 908 to rotate inside the support plate 907, causing the bevel gear 908 to drive the driven gear disc 910 to rotate. At this time, the driven gear disc 910 drives the connecting seat 909 to rotate inside the housing 901, and the connecting seat 909 drives the frame 902 to rotate inside the reaction vessel 1. At this time, the frame 902 and the stirring shaft 801 rotate in opposite directions, which in turn causes the auxiliary stirring blade 905 to rotate in opposite directions to the main stirring blade 802. Furthermore, the frame 902 drives the first rubber scraper 9... 03 and the second rubber scraper 904 scrape the inner wall of the reaction tank 1. Under the action of the first rubber scraper 903 and the second rubber scraper 904, it is easy to remove the attached material, ensuring uniform reaction and stable heat transfer throughout the reaction tank 1. At the same time, the frame 902 drives the auxiliary stirring blade 905 to stir the material inside the reaction tank 1. The auxiliary stirring blade 905 is inclined, which reduces the resistance when rotating. The auxiliary stirring blade 905 rotates in the opposite direction to the main stirring blade 802, thereby breaking the fixed flow field formed by the main stirring blade 802. This solves the mixing dead zone of traditional unidirectional stirring and improves the reaction efficiency during use.

[0025] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A reaction apparatus for processing salicylamide, comprising a reaction vessel (1) and legs (3); characterized in that: The top of the reaction vessel (1) is fixed with a cover (4), the top of the cover (4) is equipped with a drive motor (5), a feed pipe (6) is fixed on one side of the top of the cover (4), a heating structure (2) is provided on the outer side of the bottom of the reaction vessel (1), and a support foot (3) is uniformly fixed on the outer side of the bottom of the heating structure (2); a discharge pipe (7) is fixed at the bottom of the reaction vessel (1), a stirring structure (8) is provided inside the reaction vessel (1); a mixing structure (9) is provided at the top of the reaction vessel (1), the mixing structure (9) includes a shell (901) provided at the top of the reaction vessel (1), a support plate (907) is fixed on one side of the top of the shell (901), and a bevel gear (908) is rotatably connected to the bottom of the support plate (907).

2. The reaction apparatus for processing salicylamide according to claim 1, characterized in that: The heating structure (2) includes a heating seat (201), an air inlet pipe (202), a heating chamber (203), a coil groove (204), and an exhaust pipe (205). The heating seat (201) is fixed to the outside of the bottom of the reaction vessel (1). The heating chamber (203) is provided inside the heating seat (201). An air inlet pipe (202) is fixed on one side of the top of the heating seat (201), and an exhaust pipe (205) is fixed on the other side of the top of the heating seat (201). A coil groove (204) is provided on the outer wall of the reaction vessel (1) on one side of the heating chamber (203).

3. The reaction apparatus for processing salicylamide according to claim 2, characterized in that: The air intake pipe (202) and the exhaust pipe (205) are respectively equipped with one-way valves. The ends of the air intake pipe (202) and the exhaust pipe (205) away from the heating base (201) are respectively fixed with flanges. The outer wall of the heating base (201) is fixedly connected to the top of the support leg (3).

4. The reaction apparatus for processing salicylamide according to claim 2, characterized in that: The feed pipe (6) has a cover threaded to the outside of the top, the discharge pipe (7) extends to the outside of the heating base (201) at the bottom, and a discharge valve is provided inside the discharge pipe (7).

5. A reaction apparatus for processing salicylamide according to claim 1, characterized in that: The stirring structure (8) includes a stirring shaft (801), a main stirring blade (802), a conical paddle (803), a connecting rod (804), and a through hole (805). The stirring shaft (801) is located inside the reaction vessel (1). The main stirring blade (802) is uniformly fixed on the outer wall of the stirring shaft (801). The connecting rod (804) is uniformly fixed on the outer side of the bottom of the stirring shaft (801). A conical paddle (803) is fixed to one end of each connecting rod (804). The through hole (805) is uniformly penetrating the interior of the main stirring blade (802).

6. A reaction apparatus for processing salicylamide according to claim 5, characterized in that: The top end of the stirring shaft (801) passes through the housing (901) and the cover (4) and is fixedly connected to the output end of the drive motor (5). The conical paddle (803) is designed to be inclined.

7. A reaction apparatus for processing salicylamide according to claim 5, characterized in that: The through holes (805) are evenly distributed inside the main stirring blade (802).

8. A reaction apparatus for processing salicylamide according to claim 5, characterized in that: An active gear disc (906) is fixed on the outer wall of the stirring shaft (801) at the top of the housing (901). A connecting seat (909) is provided on the outer side of the stirring shaft (801) at the bottom of the housing (901). A driven gear disc (910) is fixed at the top of the connecting seat (909). A frame (902) is fixed on the outer side of the connecting seat (909). A first rubber scraper (903) is fixed on both sides of the frame (902). A second rubber scraper (904) is fixed on both sides of the bottom end of the frame (902). A secondary stirring blade (905) is evenly fixed on both sides inside the frame (902).

9. A reaction apparatus for processing salicylamide according to claim 8, characterized in that: The bevel gear (908) meshes with the drive gear disk (906) and the driven gear disk (910), and the top of the housing (901) is fixedly connected to the bottom of the cover (4).

10. A reaction apparatus for processing salicylamide according to claim 8, characterized in that: The auxiliary stirring blade (905) is designed to be inclined. The auxiliary stirring blade (905) is symmetrically distributed on both sides inside the reaction vessel (1). The connecting seat (909) and the shell (901) constitute a rotating structure.

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