Premixing device of chemical engineering reaction kettle
By designing a pre-mixing device for chemical engineering reactors with gears and rotary rods, the problems of uneven mixing of reactants and large temperature gradient in traditional devices are solved, and more efficient reactions and higher quality products are achieved, while ensuring the filtration effect of raw materials.
Patent Information
- Application Number
- CN202420635539.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-29
- Publication Date
- 2025-03-07
- Estimated Expiration
- 2034-03-29
AI Technical Summary
During the stirring process, the pre-mixing device of traditional chemical engineering reactors can easily lead to uneven mixing of reactants with catalysts or solvents, and a large temperature gradient of reactants, thereby reducing the reaction efficiency and product quality.
A pre-mixing device including support columns, mixing boxes, connecting plates, motors, gears, connecting frames, ring gears, rotary rods and mixing rods is designed. Through the cooperation of gears and rotary rods, the mixing rods are realized to rotate back and forth from left to right to ensure that the reactants are fully mixed and the temperature is uniform.
The device effectively improves the uniform mixing of reactants and the uniformity of temperature, improves the reaction efficiency and product quality, and at the same time, the filtration problem of blocks in the raw materials is solved through the filtration module to prevent it from affecting the reaction efficiency and product purity.
Smart Images
Figure CN222567548U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of industrial manufacturing, in particular to a pre-mixing device for a chemical engineering reactor. Background Art
[0002] The pre-mixing device of a reactor generally refers to a device used to mix the reactants uniformly before the reaction begins. This device helps to ensure the uniformity of the reactants at the beginning of the reaction to improve the reaction efficiency and product purity. A common form of pre-mixing device is a mechanical agitator, which mixes the reactants uniformly by rotating an agitator or stirring paddle, etc., and stirs the reactants together by mechanical force. In addition to the common pre-mixing devices, there are other types of devices, such as ultrasonic mixers, jet mixers, etc., which can also be used to pre-mix the reactants uniformly.
[0003] In the traditional mixing mechanism, a motor is usually used to directly drive a stirring rod to pre-mix the raw materials. The motor drives the stirring rod to rotate continuously in one direction to achieve the pre-mixing of the materials. This stirring method will lead to uneven mixing of reactants and catalysts or solvents, large temperature gradient of reactants, decreased reaction efficiency, and reduced product quality. Therefore, it is necessary to comprehensively consider and manufacture a stirring method that improves reaction efficiency and product purity. For this purpose, a pre-mixing device for a chemical engineering reactor is proposed to solve the above problems. Utility Model Content
[0004] In order to make up for the above deficiencies, the utility model provides a pre-mixing device for a chemical engineering reactor, aiming to improve the problem that the motor drives the stirring rod to rotate continuously in one direction, which will lead to uneven mixing of reactants and catalysts or solvents, large temperature gradient of reactants, decreased reaction efficiency, and reduced product quality.
[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a pre-mixing device for a chemical engineering reactor comprises four support columns, a mixing box is fixedly connected between the tops of the four support columns, a connecting plate is fixedly connected to the top of the mixing box, a motor is fixedly connected to the front side of the connecting plate, a gear one is fixedly connected to the output end of the motor, four connecting frames are fixedly connected to the top edge of the gear one, a gear ring is fixedly connected between the bottoms of the four connecting frames, a rotating rod is rotatably connected inside the mixing box, a gear two is fixedly connected to the top of the rotating rod, the gear two is meshed with the gear one, a plurality of stirring rods are fixedly connected to the outer periphery of the rotating rod, and a filter assembly is installed at the bottom of the mixing box;
[0006] As a further description of the above technical solution:
[0007] The filter assembly includes a pipeline, the top of the pipeline is fixedly connected to the bottom of the mixing box, the rear side of the pipeline is fixedly connected to a fixing ring 1, the front side of the pipeline is provided with a fixing ring 2, the inside of the fixing ring 2 is fixedly connected to a collar, the inner wall of the collar is fixedly connected to a filter screen, the left and right sides of the fixing ring 2 are fixedly connected to a shell, the inside of the shell is slidably connected to a plunger, the upper side of the plunger is fixedly connected to a baffle, the bottom of the baffle is fixedly connected to a spring, and the bottom end of the pipeline is fixedly connected to a reactor body;
[0008] As a further description of the above technical solution:
[0009] The bottom ends of the four support columns are fixedly connected to the top of the reactor body;
[0010] As a further description of the above technical solution:
[0011] The top of the mixing box is fixedly connected with a feed inlet;
[0012] As a further description of the above technical solution:
[0013] A handle is fixedly connected to the front side of the second fixing ring, and the top of the insertion rod is inserted into the inside of the first fixing ring;
[0014] As a further description of the above technical solution:
[0015] The outer periphery of the baffle is slidably connected to the inner wall of the shell;
[0016] As a further description of the above technical solution:
[0017] The spring is sleeved inside the outer wall of the plug rod, and the bottom end of the spring is fixedly connected to the inner bottom wall of the shell;
[0018] As a further description of the above technical solution:
[0019] The upper and lower ends of the collar are slidably connected to the inside of the pipe, and the collar and the fixing ring are in abutment with each other;
[0020] The utility model has the following beneficial effects:
[0021] 1. In the utility model, the supporting column, the mixing box, the connecting plate, the motor, the gear 1, the connecting frame, the gear ring, the gear 2 and the stirring rod structure cooperate with each other to drive the rotating rod to work, so that the rotating rod can reciprocate left and right, so that the reactants and the catalyst or the solvent are fully mixed, the temperature of the reactants is averaged, and the reaction efficiency and the product quality are effectively improved.
[0022] 2. In the utility model, with the cooperation of the pipeline, the first fixing ring, the second fixing ring, the collar, the filter screen, the outer shell, the plug rod, the baffle, the spring, the handle and other structures, the filter screen can be operated, thereby solving the problem of lumps contained in the filtering raw materials and preventing them from entering the reactor to affect the reaction efficiency and the purity of the product. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] Figure 1 It is a three-dimensional schematic diagram of the pre-mixing device of the chemical engineering reactor proposed by the utility model;
[0024] Figure 2 This is a schematic diagram of the structure of a mixing box of a pre-mixing device for a chemical engineering reactor proposed by the utility model;
[0025] Figure 3 The utility model is a schematic structural diagram of the gear ring of the pre-mixing device of the chemical engineering reactor.
[0026] Figure 4 A schematic diagram of the structure of the stirring rod of the pre-mixing device of the chemical engineering reactor proposed by the utility model
[0027] Figure 5 This is a schematic diagram of the structure of the fixed ring 2 of the pre-mixing device of the chemical engineering reactor proposed by the utility model
[0028] Figure 6 This is a schematic diagram of the structure of the collar of the pre-mixing device of the chemical engineering reactor proposed by the utility model
[0029] Figure 7 This is a schematic diagram of the structure of the rod of the pre-mixing device of the chemical engineering reactor proposed by the utility model
[0030] Legend:
[0031] 1. Support column; 2. Mixing box; 3. Connecting plate; 4. Motor; 5. Gear 1; 6. Connecting frame; 7. Gear ring; 8. Rotating rod; 9. Gear 2; 10. Stirring rod; 11. Pipeline; 12. Fixed ring 1; 13. Fixed ring 2; 14. Ring; 15. Filter; 16. Casing; 17. Rod; 18. Baffle; 19. Spring; 20. Handle; 21. Feed inlet; 22. Reactor body. DETAILED DESCRIPTION
[0032] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0033] Reference Figure 1 , Figure 3 , Figure 4 The utility model provides an embodiment: a pre-mixing device for a chemical engineering reactor, comprising four supporting columns 1, a mixing box 2 is fixedly connected between the tops of the four supporting columns 1, a connecting plate 3 is fixedly connected to the top of the mixing box 2, a motor 4 is fixedly connected to the front side of the connecting plate 3, a gear 1 5 is fixedly connected to the output end of the motor 4, four connecting frames 6 are fixedly connected to the top edge of the gear 1 5, a gear ring 7 is fixedly connected between the bottoms of the four connecting frames 6, a rotating rod 8 is rotatably connected inside the mixing box 2, a gear 2 9 is fixedly connected to the top of the rotating rod 8, the gear 2 9 is meshed with the gear 1 5, a plurality of stirring rods 10 are fixedly connected to the outer periphery of the rotating rod 8, a filtering assembly is installed at the bottom of the mixing box 2, and a feed inlet 21 is fixedly connected to the top of the mixing box 2.
[0034] Specifically, the support column 1 is used to support and connect the upper parts, the mixing box 2 is a container for pre-mixing the reactants and the catalyst or solvent, the connecting plate 3 is used to fix the motor 4 to prevent the motor 4 from moving around, the gear 1 5 is a half gear, only half of which has teeth, and the other half is a flat surface without teeth, the connecting frame 6 is used to connect the ring gear 7 and the gear 1 5 to ensure their synchronous rotation, the ring gear 7 also has only half of teeth, and the teeth are on the side of the plane of the gear 1 5, the rotating rod 8 is connected to the gear 2 9 to ensure that the gear 2 9 drives the rotating rod 8 to rotate synchronously, the rotating rod 8 is used to allow the stirring rod 10 to stir inside the mixing box 2, and the feed port 21 is convenient for adding the reactants and catalysts or solvents to be mixed into the mixing box 2.
[0035] Reference Figure 5 - Figure 7 The filter assembly includes a pipe 11, the top of the pipe 11 is fixedly connected to the bottom of the mixing box 2, a fixing ring 12 is fixedly connected to the rear side of the pipe 11, a fixing ring 13 is arranged on the front side of the pipe 11, a sleeve 14 is fixedly connected inside the fixing ring 13, a filter screen 15 is fixedly connected to the inner wall of the sleeve 14, a housing 16 is fixedly connected to the left and right sides of the fixing ring 13, a plug rod 17 is slidably connected inside the housing 16, a baffle 18 is fixedly connected to the upper side of the plug rod 17, a spring 19 is fixedly connected to the bottom of the baffle 18, and the pipe The bottom end of the pipe 11 is fixedly connected to the reactor body 22, the bottom ends of the four support columns 1 are fixedly connected to the top of the reactor body 22, the front side of the fixing ring 13 is fixedly connected to the handle 20, the top of the plug rod 17 is inserted into the inside of the fixing ring 12, the outer periphery of the baffle 18 is slidably connected to the inner wall of the shell 16, the spring 19 is internally sleeved on the outer wall of the plug rod 17, the bottom end of the spring 19 is fixedly connected to the inner bottom wall of the shell 16, the upper and lower ends of the ring 14 are slidably connected to the inside of the pipe 11, and the ring 14 and the fixing ring 12 are abutted against each other.
[0036] Specifically, the pipeline 11 is a passage connecting the mixing box 2 and the reactor body 22, and falls into the reactor body 22 through the pipeline 11. The fixing ring 12 is used to fix the fixing ring 2 13. A sealing strip is installed at the inner edge of the fixing ring 2 13 to play a role of sealing and airtightness. The ring 14 is fixed on the fixing ring 2 13, and a filter 15 is fixed inside it. The filter 15 is used to filter the lumps contained in the material to prevent it from entering the reactor and affecting the reaction efficiency and the purity of the product. The shell 16 is used to fix and protect the internal parts. The plug rod 17 cooperates with the fixing ring 12 to fix the fixing ring 2 13. When the plug rod 17 is pulled, the baffle 18 compresses the spring 19. As long as the hand is released, the plug rod 17 will pop out and reset. The handle 20 is connected to the fixing ring 2 13 to facilitate the removal of the filter 15 for cleaning. The reactor body 22 is where the product is produced.
[0037] Working principle: When using this device, first control the motor 4 to rotate through an external power supply, and then add the reactants and catalysts or solvents into the mixing box 2 from the feed port 21. When the motor 4 rotates, it drives the gear 1 5 to rotate, and the gear 1 5 drives the gear 2 9 to rotate. Because the gear 1 5 is a half gear, the gear 2 9 will be separated from the gear 1 5 after the gear 1 5 rotates half a circle, and immediately mesh with the gear ring 7 connected to the gear 1 5 through the connecting frame 6, so that the gear 2 9 rotates in the opposite direction. The motor 4 keeps rotating, and the gear 2 9 will keep reciprocating, driving the rotating rod 8 to rotate synchronously. The stirring rod 10 will keep rotating in the mixing box 2 to fully mix the reactants and the catalyst or solvent. The mixed reactants will fall into the reactor through the pipeline 11 In the main body 22, the lumps and debris will be filtered out through the filter screen 15 during the process. When all the reactants are mixed, first pull the two rods 17 downward to let the rods 17 separate from the fixed ring 12, pull the handle 20 to pull out the fixed ring 13, and pull the ring 14 out together, then take out the lumps filtered on the filter screen 15 and reinsert it into the pipe 11. It is necessary to pull the rod 17 downward first to let the ring 14 insert into the pipe 11. At this time, release the rod 17, and the spring 19 will push the baffle 18 to insert the rod 17 into the fixed ring 12 to filter the lumps contained in the raw materials to prevent them from entering the reactor body 22 and affecting the reaction efficiency and product purity, thereby effectively improving the reaction efficiency and product quality.
[0038] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A premixing device for a chemical engineering reactor, comprising four support columns (1), characterized in that: A mixing box (2) is fixedly connected between the top ends of the four support columns (1), a connecting plate (3) is fixedly connected to the top of the mixing box (2), a motor (4) is fixedly connected to the front side of the connecting plate (3), a gear one (5) is fixedly connected to the output end of the motor (4), four connecting frames (6) are fixedly connected to the top edge of the gear one (5), a gear ring (7) is fixedly connected between the bottoms of the four connecting frames (6), a rotating rod (8) is rotatably connected inside the mixing box (2), a gear two (9) is fixedly connected to the top end of the rotating rod (8), the gear two (9) and the gear one (5) are meshed, a plurality of stirring rods (10) are fixedly connected to the outer periphery of the rotating rod (8), and a filter assembly is installed at the bottom of the mixing box (2).
2. The premixing device for a chemical engineering reactor according to claim 1, characterized in that: The filter assembly comprises a pipeline (11), the top end of the pipeline (11) is fixedly connected to the bottom of the mixing box (2), the rear side of the pipeline (11) is fixedly connected to a fixing ring 1 (12), the front side of the pipeline (11) is provided with a fixing ring 2 (13), the interior of the fixing ring 2 (13) is fixedly connected to a sleeve ring (14), the inner wall of the sleeve ring (14) is fixedly connected to a filter screen (15), the left and right sides of the fixing ring 2 (13) are fixedly connected to a shell (16), the interior of the shell (16) is slidably connected to a plug rod (17), the upper side of the plug rod (17) is fixedly connected to a baffle (18), the bottom of the baffle (18) is fixedly connected to a spring (19), and the bottom end of the pipeline (11) is fixedly connected to a reactor body (22).
3. The premixing device for a chemical engineering reactor according to claim 2, characterized in that: The bottom ends of the four support columns (1) are fixedly connected to the top end of the reactor body (22).
4. The premixing device for a chemical engineering reactor according to claim 1, characterized in that: The top of the mixing box (2) is fixedly connected with a feed inlet (21).
5. The premixing device for a chemical engineering reactor according to claim 2, characterized in that: A handle (20) is fixedly connected to the front side of the second fixing ring (13), and the top of the insertion rod (17) is inserted into the interior of the first fixing ring (12).
6. The premixing device for a chemical engineering reactor according to claim 2, characterized in that: The outer periphery of the baffle (18) is slidably connected to the inner wall of the outer shell (16).
7. The premixing device for a chemical engineering reactor according to claim 2, characterized in that: The spring (19) is sleeved inside the outer wall of the insertion rod (17), and the bottom end of the spring (19) is fixedly connected to the inner bottom wall of the outer shell (16).
8. The premixing device for a chemical engineering reactor according to claim 2, characterized in that: The upper and lower ends of the collar (14) are slidably connected inside the pipe (11), and the collar (14) and the fixing ring (12) are in abutment with each other.