Catalyst stirring device

Abstract

The invention relates to the technical field of catalyst stirring, in particular to a catalyst stirring device. The catalyst stirring device comprises a preparation tank, an annular motion driving mechanism and a stirring part, the annular motion driving mechanism is installed at the top of the preparation tank, the stirring part located in the preparation tank is connected to the annular motion driving mechanism, and the annular motion driving mechanism can drive the stirring part to annularly move around the vertical center line of the preparation tank. Wherein the annular motion driving mechanism can drive the stirring part to annularly move around the vertical center line of the preparation tank, the motion path of the stirring part is located between the vertical center line and the side wall of the preparation tank, and the distance between the stirring part and the side wall of the preparation tank is reduced; the stirring effect of the stirring part on the jelly near the side wall of the preparation tank is enhanced, so that the jelly generated by the reaction of the liquid catalyst raw material and the solid catalyst raw material can be fully stirred and uniformly mixed, and the influence on the technological process of the next stage is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of catalyst stirring, in particular to a catalyst stirring device. Background Art

[0002] The existing catalyst stirring device includes a preparation tank and a stirring member, wherein the stirring member is located at the center line of the preparation tank, and the axis of the stirring member coincides with the vertical center line of the preparation tank. When the catalyst raw material is stirred, the stirring member rotates around the axis of the stirring member at a fixed position. The catalyst raw material near the vertical center line is closer to the stirring member, and the stirring effect of the stirring member on this part of the catalyst raw material is stronger, and the moving speed of this part of the catalyst raw material is faster; the catalyst raw material near the side wall of the preparation tank is farther from the vertical center line, and the stirring effect of the stirring member on this part of the catalyst raw material is weaker, and the moving speed of this part of the catalyst raw material is slower.

[0003] Some liquid catalyst raw materials and solid catalyst raw materials react chemically during the mixing process and generate colloids, which are easy to adhere to the side walls of the preparation tank. However, the stirring effect of the stirring parts on the side walls of the preparation tank is poor, so these colloids are difficult to be fully stirred and mixed, which in turn affects the next stage of the process. Summary of the invention

[0004] The purpose of the present invention is to overcome the problem that the existing catalyst stirring device in the prior art is difficult to stir and mix the colloid generated by the reaction of liquid catalyst raw materials and solid catalyst raw materials.

[0005] In order to achieve the above-mentioned purpose, the present invention provides a catalyst stirring device, which includes a preparation tank, a circular motion drive mechanism and a stirring component. The circular motion drive mechanism is installed on the top of the preparation tank, and the stirring component located in the preparation tank is connected to the circular motion drive mechanism. The circular motion drive mechanism can drive the stirring component to perform circular motion around the vertical center line of the preparation tank.

[0006] In some embodiments, the annular motion driving mechanism includes a driving motor and a transmission mechanism, the driving motor is installed on the top of the preparation tank, the transmission mechanism driven by the driving motor is arranged in the preparation tank, and the stirring component is connected to the bottom of the transmission mechanism.

[0007] In some embodiments, the transmission mechanism includes a ring gear, a driving gear and a driven gear; the ring gear is fixed in the preparation tank, the ring gear surrounds the driving gear, the axis of the ring gear and the axis of the driving gear coincide with the vertical center line of the preparation tank, the external meshing teeth of the driven gear are respectively meshed with the internal meshing teeth of the ring gear and the external meshing teeth of the driving gear, and the driving gear driven by the driving motor is rotatably connected to the preparation tank; two first connecting rods extending outward along the same diameter line of the ring gear are provided on the radial outer side of the ring gear, and the second connecting rods are rotatably connected to the first connecting rods, the two second connecting rods are connected by a third connecting rod, and the third connecting rod and the second connecting rod can rotate with each other, the driven gear is rotatably installed on the top of the third connecting rod, and the stirring component is installed at the middle position of the third connecting rod in its length direction.

[0008] In some embodiments, a mounting hole vertically penetrating the third connecting rod is provided at the middle position of the third connecting rod in the length direction, the driven gear is rotatably connected to the mounting hole through a connecting shaft, and the stirring component is fixedly connected to the end of the connecting shaft; and / or the inner diameter of the ring gear is the same as the inner diameter of the preparation tank, and the diameter of the driven gear is 1.1-1.5 times the diameter of the driving gear.

[0009] In some embodiments, the interior of the preparation tank has a stirring chamber and an installation chamber, the transmission mechanism is located in the installation chamber, the stirring component is located in the stirring chamber, and the installation chamber is located above the stirring chamber.

[0010] In some embodiments, the stirring component includes a stirring rod and multiple stirring paddles, the stirring rod is connected to the transmission mechanism, and the multiple stirring paddles are installed on the stirring rod at intervals along the axial and circumferential directions of the stirring rod; and / or a partition is provided between the installation chamber and the stirring chamber, the bottom surface of the third connecting rod is in contact with the top surface of the partition, and the partition is provided with an avoidance opening for avoiding the stirring component.

[0011] In some embodiments, a liquid inlet component communicating with the stirring chamber is provided on the side wall of the preparation tank.

[0012] In some embodiments, a side wall of the preparation tank is provided with a feeding component communicating with the stirring chamber.

[0013] In some embodiments, the bottom wall of the preparation tank is provided with a discharge component communicating with the stirring chamber.

[0014] In some embodiments, the catalyst stirring device further comprises a support frame, and the preparation tank is vertically mounted on the support frame.

[0015] The above technical solution of the present invention has the following beneficial effects:

[0016] The circular motion driving mechanism can drive the stirring component to perform circular motion around the vertical center line of the preparation tank. The motion path of the stirring component is located between the vertical center line and the side wall of the preparation tank. The distance between the stirring component and the side wall of the preparation tank is reduced, and the stirring effect of the stirring component on the colloid near the side wall of the preparation tank is enhanced, which helps to fully stir and mix the colloids generated by the reaction of liquid catalyst raw materials and solid catalyst raw materials to avoid affecting the next stage of the process. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a vertical cross-sectional schematic diagram of a catalyst stirring device in one embodiment of the present invention;

[0018] Figure 2 is a schematic top view of a transmission mechanism in one embodiment of the present invention;

[0019] Figure 3 is a side view schematic diagram of a transmission mechanism in one embodiment of the present invention;

[0020] Figure 4 Schematic side view of a partition in one embodiment of the present invention.

[0021] Description of Reference Numerals

[0022] 1. Preparation tank; 11. Installation chamber; 12. Stirring chamber; 13. Partition; 14. Avoidance; 15; Feeding part; 16. Liquid inlet part; 17. Discharging part; 2. Driving motor; 3. Transmission mechanism; 31. Ring gear; 32. Driving gear; 33. Driven gear; 34. First connecting rod; 35. Second connecting rod; 36. Third connecting rod; 37. Connecting shaft; 4. Stirring part; 41. Stirring rod; 42. Stirring paddle; 5. Support frame. DETAILED DESCRIPTION

[0023] The features and exemplary embodiments of various aspects of the present invention will be described in detail below. In order to make the purpose, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only intended to explain the present invention, rather than to limit the present invention. For those skilled in the art, the present invention can be implemented without the need for some of these specific details. The following description of the embodiments is only to provide a better understanding of the present invention by illustrating examples of the present invention.

[0024] like Figure 1As shown, the present invention provides a catalyst stirring device, which includes a preparation tank 1, a circular motion driving mechanism and a stirring component 4, the circular motion driving mechanism is installed on the top of the preparation tank 1, the stirring component 4 located in the preparation tank 1 is connected to the circular motion driving mechanism, and the circular motion driving mechanism can drive the stirring component 4 to perform circular motion around the vertical center line of the preparation tank 1.

[0025] Specifically, the annular motion drive mechanism can drive the stirring member 4 to perform annular motion around the vertical center line of the preparation tank 1. The motion path of the stirring member 4 is located between the vertical center line and the side wall of the preparation tank 1. The distance between the stirring member 4 and the side wall of the preparation tank 1 is reduced, and the stirring effect of the stirring member 4 on the colloid near the side wall of the preparation tank 1 is enhanced, which helps to fully stir and mix the colloids generated by the reaction of the liquid catalyst raw material and the solid catalyst raw material to avoid affecting the next stage of the process. Moreover, the catalyst raw material near the vertical center line and the catalyst raw material near the side wall of the preparation tank 1 are both close to the motion path of the stirring member 4, which helps to keep the catalyst raw material near the vertical center line and the catalyst raw material near the side wall of the preparation tank 1 at a consistent moving speed, thereby achieving synchronous and uniform mixing of all catalyst raw materials, effectively improving the stirring effect.

[0026] like Figure 1 As shown, in some embodiments of the present invention, the annular motion driving mechanism includes a driving motor 2 and a transmission mechanism 3, the driving motor 2 is installed on the top of the preparation tank 1, the transmission mechanism 3 driven by the driving motor 2 is arranged in the preparation tank 1, and the stirring component 4 is connected to the bottom of the transmission mechanism 3.

[0027] Specifically, the drive motor 2 can be vertically installed on the top of the preparation tank 1, and the output shaft of the drive motor 2 is downward. The drive motor 2 can drive the stirring component 4 to perform circular motion around the vertical center line of the preparation tank 1 by driving the transmission mechanism 3, so that the catalyst raw materials can be synchronously and evenly mixed.

[0028] In some embodiments of the present invention, the transmission mechanism 3 includes a transmission rod, which includes a vertically extending upper section, a horizontally extending middle section and a vertically extending lower section from top to bottom, and the upper section of the transmission rod is provided with a radially outward annular protrusion. The drive motor 2 is vertically installed on the top of the preparation tank 1, the output shaft of the drive motor 2 faces the preparation tank 1, and the axis of the output shaft of the drive motor 2 coincides with the vertical center line of the preparation tank 1. The top wall of the preparation tank 1 is provided with a top wall through hole, and a thrust ball bearing is installed on the top of the preparation tank 1, and the shaft mounting hole of the thrust ball bearing is connected to the top wall through hole. The upper section of the transmission rod is penetrated in the shaft mounting hole and the top wall through hole, and a ball bearing is arranged between the upper section of the transmission rod and the top wall through hole, and the annular protrusion is pressed against the top surface of the thrust ball bearing (the annular protrusion prevents the transmission rod from falling off). The upper section of the transmission rod is also connected to the output shaft of the drive motor 2. The middle section and the lower section of the transmission rod are both located in the preparation tank 1, and the lower section is connected to the stirring component 4. When the driving motor 2 drives the transmission rod to rotate circumferentially, the transmission rod drives the stirring component 4 to perform a circular motion around the vertical center line of the preparation tank 1 .

[0029] like Figures 1 to 3 As shown, in some embodiments of the present invention, the transmission mechanism 3 includes a ring gear 31, a driving gear 32 and a driven gear 33. The ring gear 31 is fixed in the preparation tank 1, the ring gear 31 surrounds the driving gear 32, the axis of the ring gear 31 and the axis of the driving gear 32 coincide with the vertical center line of the preparation tank 1, the external meshing teeth of the driven gear 33 are respectively meshed with the internal meshing teeth of the ring gear 31 and the external meshing teeth of the driving gear 32, and the driving gear 32 driven by the driving motor 2 is rotatably connected to the preparation tank 1. Two first connecting rods 34 extending outward along the same diameter line of the ring gear 31 are provided on the radial outer side of the ring gear 31, and the second connecting rod 35 is rotatably connected to the first connecting rod 34, and the two second connecting rods 35 are connected by a third connecting rod 36, and the third connecting rod 36 and the second connecting rod 35 can rotate with each other, the driven gear 33 is rotatably installed on the top of the third connecting rod 36, and the stirring component 4 is installed at the middle position of the third connecting rod 36 in the length direction thereof.

[0030] Specifically, the inner diameter of the ring gear 31 is larger than the outer diameter of the driving gear 32 and the outer diameter of the driven gear 33. Of course, the ring gear 31, the driving gear 32 and the driven gear 33 are distributed in the same horizontal space. The driving gear 32 is located at the center of the ring gear 31. The driving gear 32 can drive the driven gear 33 to perform circular motion along the inner side of the ring gear 31. The outer side of the ring gear 31 can be fixed on the top wall or side wall of the preparation tank 1, and the driving gear 32 is rotatably mounted on the top wall of the preparation tank 1. The first connecting rod 34 is fixedly connected to the outer side of the ring gear 31, the second connecting rod 35 can rotate relative to the first connecting rod 34, and the second connecting rod 35 and the third connecting rod 36 can rotate with each other, so the first connecting rod 34, the second connecting rod 35 and the third connecting rod 36 together constitute a planar four-bar linkage. The second connecting rod 35 is installed below the first connecting rod 34, the third connecting rod 36 is installed below the second connecting rod 35, and the driven gear 33 is installed on the top of the third connecting rod 36. The ring gear 31 and the driving gear 32 are both located above the third connecting rod 36. The planar four-bar linkage composed of the first connecting rod 34, the second connecting rod 35 and the third connecting rod 36 can restrict the driven gear 33 in the ring gear 31 and support the driven gear 33 to prevent the driven gear 33 from falling from the ring gear 31.

[0031] In this embodiment, the driving motor 2 drives the driving gear 32 to rotate. During the circumferential rotation, the driving gear 32 drives the driven gear 33 to make a circular motion along the inner side of the ring gear 31. At the same time, the second connecting rod 35 and the third connecting rod 36 cooperate with the movement of the driven gear 33. During the movement of the third connecting rod 36, the stirring component 4 can be driven to make a circular motion around the vertical center line of the preparation tank 1.

[0032] In some embodiments of the present invention, the inner diameter of the ring gear 31 is the same as the inner diameter of the preparation tank 1 , and the diameter of the driven gear 33 is 1.1-1.5 times the diameter of the driving gear 32 .

[0033] Specifically, if the driven gear 33 is too small, the stirring component 4 will be far away from the center of the stirring chamber and close to the side wall of the preparation tank 1; if the driven gear 33 is too large, the driving efficiency of the driving gear 32 will be too low. The diameter of the driven gear 33 is 1.1-1.5 times the diameter of the driving gear 32, so the diameter of the driven gear 33 is slightly larger than the diameter of the driving gear 32. At this time, the stirring component 4 will not be too far away from the center of the stirring chamber, which helps the stirring component 4 to fully stir the catalyst raw materials, and also helps to set a longer stirring paddle 42. At the same time, the transmission efficiency of the driving gear 32 will not be too low. Preferably, the diameter of the driven gear 33 is 1.2 times the diameter of the driving gear 32.

[0034] like Figures 1 to 3As shown, in some embodiments of the present invention, a mounting hole vertically penetrating the third connecting rod 36 is provided at the middle position of the third connecting rod 36 in the length direction, the driven gear 33 is rotatably connected to the mounting hole through the connecting shaft 37, and the stirring component 4 is fixedly connected to the end of the connecting shaft 37.

[0035] Specifically, the end of the connecting shaft 37 is rotatably mounted in the mounting hole, and the head end of the connecting shaft 37 is fixedly mounted in the shaft mounting hole of the driven gear 33. The driven gear 33 can rotate relative to the third connecting rod 36 through the connecting shaft 37. Of course, a ball bearing can be provided between the connecting shaft 37 and the mounting hole. Driven by the driving motor 2, the driven gear 33 performs two kinds of movements, one is to perform annular movement around the vertical center line of the preparation tank 1, and the other is to rotate around its own axis. The connecting shaft 37 is fixedly connected to the driven gear 33, so the connecting shaft 37 will also rotate around its own axis. The stirring member 4 is connected to the end of the connecting shaft 37, so the stirring member 4 will not only perform annular movement around the vertical center line of the preparation tank 1, but also rotate around the axis of the connecting shaft 37, and these two kinds of movements can fully stir the catalyst raw material.

[0036] like Figure 1 As shown, in some embodiments of the present invention, the interior of the preparation tank 1 has a stirring chamber 12 and an installation chamber 11, the transmission mechanism 3 is located in the installation chamber 11, the stirring component 4 is located in the stirring chamber 12, and the installation chamber 11 is located above the stirring chamber 12.

[0037] Specifically, the installation chamber 11 is used to accommodate the transmission mechanism 3, and the stirring chamber 12 is used to accommodate the catalyst raw material. The inner diameter of the ring gear 31 is equal to the diameter of the stirring chamber 12, so that the driven gear 33 has a larger range of motion.

[0038] like Figure 4 As shown, in some embodiments of the present invention, a partition 13 is provided between the installation chamber 11 and the stirring chamber 12, the bottom surface of the third connecting rod 36 contacts the top surface of the partition 13, and an escape opening 14 for avoiding the stirring component 4 is provided on the partition 13.

[0039] Specifically, based on the gravity of the third connecting rod 36 itself, the pressure of the driven gear 33 and the pulling force of the stirring member 4, the third connecting rod 36 may bend and deform, thereby affecting the movement of the driven gear 33. However, the partition 13 can support the third connecting rod 36 to prevent the third connecting rod 36 from bending and deforming downward. The stirring member 4 forms a circular moving trajectory in the process of moving with the third connecting rod 36, and the diameter of the avoidance port 14 is slightly larger than the diameter of the circular moving trajectory of the stirring member 4 to avoid hindering the movement of the stirring member 4. When the catalyst raw material is applied to the stirring chamber 12, raw material dust will be generated, and the raw material dust will adhere to the transmission mechanism 3, but the partition 13 can block the raw material dust to a certain extent, which helps to prevent the raw material dust from entering the installation space.

[0040] like Figure 1 As shown, in some embodiments of the present invention, the stirring component 4 includes a stirring rod 41 and a plurality of stirring paddles 42 , the stirring rod 41 is connected to the transmission mechanism 3 , and the plurality of stirring paddles 42 are installed on the stirring rod 41 at intervals along the axial direction and circumferential direction of the stirring rod 41 .

[0041] Specifically, the stirring rod 41 extends vertically, the top end of the stirring rod 41 is connected to the end of the connecting shaft 37, and the bottom end of the stirring rod 41 is close to the bottom wall of the preparation tank 1. The stirring paddle 42 extends horizontally, the head end of the stirring paddle 42 is connected to the stirring rod 41, and the end of the stirring paddle 42 is close to the side wall of the preparation tank 1. The stirring paddle 42 can expand the stirring range, which helps to fully stir the catalyst raw material.

[0042] like Figure 1 As shown, in some embodiments of the present invention, a liquid inlet component 16 communicating with the stirring chamber 12 is provided on the side wall of the preparation tank 1 .

[0043] Specifically, the liquid required for stirring the catalyst raw material can be applied from the liquid inlet component 16. Preferably, the liquid inlet component 16 includes a liquid inlet pipe installed on the side wall of the preparation tank 1 and a valve installed on the liquid inlet pipe.

[0044] like Figure 1 As shown, in some embodiments of the present invention, a side wall of the preparation tank 1 is provided with a feeding component 15 communicating with the stirring chamber 12 .

[0045] Specifically, the catalyst raw material can be fed from the feed component 15. Of course, the position of the feed component 15 should be as high as possible. Preferably, the feed component 15 includes a feed pipe installed on the side wall of the preparation tank 1, and the feed port of the feed pipe is provided with a sealing cover that can close the port and open the port. The feed pipe is arranged at the side wall of the preparation tank 1, which can prevent the catalyst raw material from entering the transmission mechanism 3 and affecting the meshing between the gears.

[0046] like Figure 1As shown, in some embodiments of the present invention, the bottom wall of the preparation tank 1 is provided with a discharge component 17 communicated with the stirring chamber 12 .

[0047] Specifically, the catalyst raw material can be discharged through the discharge component 17. Preferably, the discharge component 17 may include a discharge pipe installed on the side wall of the preparation tank 1 and a valve installed on the discharge pipe.

[0048] In some embodiments, the bottom of the preparation tank 1 is configured to be conical to prevent the catalyst raw material from remaining in the preparation tank 1 during the discharge process.

[0049] like Figure 1 As shown, in some embodiments of the present invention, the catalyst stirring device further includes a support frame 5 , and the preparation tank 1 is vertically installed on the support frame 5 .

[0050] Specifically, the support frame 5 can be installed to fix the preparation tank 1 so that the preparation tank 1 maintains a vertical posture.

[0051] This article uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only used to help understand the method and core ideas of the present invention. The above are only preferred implementation methods of the present invention. It should be pointed out that due to the limitations of textual expression, there are objectively infinite specific structures. For ordinary technicians in this technical field, without departing from the principles of the present invention, they can make several improvements, modifications or changes, and can also combine the above technical features in an appropriate manner; these improvements, modifications, changes or combinations, or the direct application of the concept and technical solution of the present invention to other occasions without improvement, should be regarded as the protection scope of the present invention.

Claims

1. A catalyst stirring device, characterized in that: The invention comprises a preparation tank (1), a circular motion driving mechanism and a stirring component (4), wherein the circular motion driving mechanism is installed on the top of the preparation tank (1), and the stirring component (4) located in the preparation tank (1) is connected to the circular motion driving mechanism, and the circular motion driving mechanism can drive the stirring component (4) to perform circular motion around the vertical center line of the preparation tank (1).

2. The catalyst stirring device according to claim 1, characterized in that: The annular motion driving mechanism comprises a driving motor (2) and a transmission mechanism (3), wherein the driving motor (2) is mounted on the top of the preparation tank (1), the transmission mechanism (3) driven by the driving motor (2) is arranged in the preparation tank (1), and the stirring component (4) is connected to the transmission mechanism (3).

3. The catalyst stirring device according to claim 2, characterized in that: The transmission mechanism (3) comprises a ring gear (31), a driving gear (32) and a driven gear (33); The ring gear (31) is fixed in the preparation tank (1), the ring gear (31) surrounds the driving gear (32), the axis of the ring gear (31) and the axis of the driving gear (32) coincide with the vertical center line of the preparation tank (1), the external meshing teeth of the driven gear (33) are respectively meshed with the internal meshing teeth of the ring gear (31) and the external meshing teeth of the driving gear (32), and the driving gear (32) driven by the driving motor (2) is rotatably connected to the preparation tank (1); Two first connecting rods (34) extending outward along the same diameter line of the ring gear (31) are provided on the radial outer side of the ring gear (31); a second connecting rod (35) is rotatably connected to the first connecting rod (34); the two second connecting rods (35) are connected by a third connecting rod (36); and the third connecting rod (36) and the second connecting rod (35) can rotate with each other; the driven gear (33) is rotatably mounted on the top of the third connecting rod (36); and the stirring component (4) is mounted at the middle position of the third connecting rod (36) in its length direction.

4. The catalyst stirring device according to claim 3, characterized in that: The third connecting rod (36) is provided with a mounting hole which vertically penetrates the third connecting rod (36) at a middle position in the length direction thereof, the driven gear (33) is rotatably connected to the mounting hole via a connecting shaft (37), and the stirring component (4) is fixedly connected to the end of the connecting shaft (37); and / or The inner diameter of the ring gear (31) is the same as the inner diameter of the preparation tank (1), and the diameter of the driven gear (33) is 1.1-1.5 times the diameter of the driving gear (32).

5. The catalyst stirring device according to claim 4, characterized in that: The preparation tank (1) has a stirring chamber (12) and an installation chamber (11) inside, the transmission mechanism (3) is located in the installation chamber (11), the stirring component (4) is located in the stirring chamber (12), and the installation chamber (11) is located above the stirring chamber (12).

6. The catalyst stirring device according to claim 5, characterized in that: The stirring component (4) comprises a stirring rod (41) and a plurality of stirring paddles (42), wherein the stirring rod (41) is connected to the transmission mechanism (3), and the plurality of stirring paddles (42) are installed on the stirring rod (41) at intervals along the axial direction and the circumferential direction of the stirring rod (41); and / or A partition (13) is provided between the installation chamber (11) and the stirring chamber (12); the bottom surface of the third connecting rod (36) contacts the top surface of the partition (13); and the partition (13) is provided with an escape opening (14) for evading the stirring component (4).

7. The catalyst stirring device according to claim 5, characterized in that: A liquid inlet component (16) communicating with the stirring chamber (12) is provided on the side wall of the preparation tank (1).

8. The catalyst stirring device according to claim 5, characterized in that: The side wall of the preparation tank (1) is provided with a feeding component (15) which is in communication with the stirring chamber (12).

9. The catalyst stirring device according to claim 5, characterized in that: The bottom wall of the preparation tank (1) is provided with a discharge component (17) which is in communication with the stirring chamber (12).

10. The catalyst stirring device according to claim 1, characterized in that: The catalyst stirring device further comprises a support frame (5), and the preparation tank (1) is vertically mounted on the support frame (5).

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