A raw material uniform stirring device for molecular sieve production

Abstract

The utility model mainly relates to molecular sieve production technical field, concretely relates to a raw material uniform stirring device for molecular sieve production, including the stirring kettle, the top of stirring kettle is open structure and can detachably assemble top cover subassembly, the bottom fixed communication has the discharge pipe, the export end of discharge pipe is assembled with control valve, be provided with stirring mechanism on top cover subassembly, and stirring mechanism includes drive unit and is driven to carry out the stirring shaft of positive and negative direction alternate rotation, and the stirring shaft is located top cover subassembly center place, its bottom end coaxially fixed has the mounting disc, and the mounting disc is uniformly distributed with a plurality of stirring rods along its circumference, drive unit can drive the positive and negative direction alternate rotation of stirring rod, and when stirring rod follows the synchronous rotation of mounting disc, third gear will rotate along the big gear and rotate through the meshing, so the stirring rod will rotate on the mounting disc while following the synchronous rotation of mounting disc, thereby can further improve the stirring effect.

Description

Technical Field

[0001] This utility model mainly relates to the field of molecular sieve production technology, specifically to a raw material uniform stirring device for molecular sieve production. Background Technology

[0002] Molecular sieves are artificially synthesized or natural aluminosilicate crystal materials with regular pore structures, widely used in petrochemicals, environmental protection, and gas separation. In the production process of molecular sieves, uniform mixing of raw materials is a crucial step determining the purity, crystallinity, and performance stability of the final product. Uneven mixing of raw materials can easily lead to local component imbalances, inconsistent crystallization reactions, and consequently, problems such as impurities, excessively wide grain size distribution, or pore structure defects, severely affecting the adsorption and separation performance and catalytic activity of the molecular sieve.

[0003] Currently, the mixing of molecular sieve raw materials mainly relies on mechanical stirring devices. However, existing stirring equipment generally adopts a unidirectional rotary drive mode. This stirring method easily forms unidirectional laminar flow or regular vortices in the tank, with the material mainly moving in a circular motion along the tangential direction, while the radial and axial material exchange capacity is weak. Light components tend to concentrate near the stirring shaft, while heavy particles or viscous materials tend to deposit on the tank wall or bottom under the action of centrifugal force, forming a "mixing dead zone." This results in uneven distribution of components at both the macroscopic and microscopic levels, leading to low mixing efficiency and poor uniformity. Utility Model Content

[0004] 1. The technical problem to be solved by the utility model:

[0005] This invention provides a raw material uniform stirring device for molecular sieve production, which solves the technical problems existing in the background art.

[0006] 2. Technical Solution:

[0007] To achieve the above objectives, the technical solution provided by this utility model is as follows: a raw material uniform stirring device for molecular sieve production, including a stirring vessel, wherein the top of the stirring vessel is an open structure and is detachably equipped with a top cover assembly, and the bottom is fixedly connected to a discharge pipe, wherein a control valve is installed at the outlet end of the discharge pipe.

[0008] The top cover assembly is provided with a stirring mechanism, which includes a driving unit and a stirring shaft driven by the driving unit to rotate alternately in the forward and reverse directions. The stirring shaft is located at the center of the top cover assembly, and a mounting plate is coaxially fixed at its bottom end. Multiple stirring rods are evenly distributed along the circumference of the mounting plate.

[0009] Furthermore, the drive unit includes an input shaft, which is rotatably mounted on the top of the top cover assembly. A first half gear is fixedly mounted on the input shaft. A coaxial internal gear ring is fixedly connected to the outside of the input shaft by a plurality of circumferentially distributed radial support rods. The internal gear ring has a half-tooth structure. The toothed portions of the first half gear and the internal gear ring are offset by 180 degrees in the circumferential direction and are arranged opposite each other. A second gear is fixedly mounted on the stirring shaft. The second gear is located between the first half gear and the internal gear ring and cooperates with both of them.

[0010] Furthermore, the drive unit also includes a drive motor, which is fixed on the top cover assembly, and its output shaft is synchronously connected to the input shaft through a synchronous belt drive assembly.

[0011] Furthermore, each of the stirring rods is rotatably connected to the mounting plate via bearings, and each rotating shaft is fixedly fitted with a third gear. Each third gear meshes with a large gear, which is fixedly fitted onto a mounting sleeve fixedly installed at the bottom of the top cover assembly. The stirring shaft is rotatably installed in the mounting sleeve via bearings.

[0012] Furthermore, the top cover assembly includes an upper flange portion and a lower assembly portion that are coaxially integrally formed. The diameter of the upper flange portion is larger than the diameter of the lower assembly portion. The outer diameter of the lower assembly portion is adapted to the inner diameter of the top opening of the mixing vessel, and the outer wall is provided with an external thread. The external thread matches the internal thread provided on the inner wall of the top opening of the mixing vessel.

[0013] Furthermore, multiple operating handles are evenly distributed and fixed on the outer circumference of the upper flange.

[0014] 3. Beneficial effects:

[0015] Compared with the prior art, the technical solution provided by this utility model has the following advantages: the drive unit can drive the stirring shaft and the mounting plate to rotate alternately in both directions, and the multiple stirring rods evenly distributed around the circumference of the mounting plate maintain synchronous movement, thereby enabling the raw materials to be stirred alternately in both directions, disrupting the symmetry of the flow field, and generating instantaneous turbulence, secondary flow and stretching flow. Compared with traditional unidirectional rotation stirring, the stirring efficiency is higher and the uniformity is better. When the stirring rod rotates synchronously with the mounting plate, the third gear will rotate along the large gear and rotate through meshing. Therefore, the stirring rod will rotate on the mounting plate while rotating synchronously with the mounting plate, thereby further improving the stirring effect. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is an exploded structural diagram of the mixing vessel and top cover assembly of this utility model;

[0018] Figure 3 This is a schematic diagram of the drive unit structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the stirring mechanism of this utility model.

[0020] Figure label:

[0021] 1. Mixing vessel; 101. Internal thread; 2. Top cover assembly; 201. Upper flange; 202. Lower assembly; 203. External thread; 204. Operating handle; 3. Discharge pipe; 4. Control valve; 5. Mixing mechanism; 501. Drive unit; 5011. Input shaft; 5012. First half gear; 5013. Radial support rod; 5014. Internal gear ring; 5015. Second gear; 5016. Drive motor; 5017. Synchronous belt drive assembly; 502. Mixing shaft; 503. Mounting plate; 504. Mixing rod; 505. Third gear; 506. Large gear; 507. Mounting sleeve. Detailed Implementation

[0022] To facilitate understanding of this utility model, a more comprehensive description of the utility model will be given below with reference to the accompanying drawings, which show several embodiments of the utility model. However, the utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of the utility model will be more thorough and complete.

[0023] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "page", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0024] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0025] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," "fixing," and "equipped with" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances. Example

[0026] See attached document Figure 1-4 A uniform stirring device for raw materials used in molecular sieve production includes a stirring vessel 1. The top of the stirring vessel 1 is an open structure and is detachably equipped with a top cover assembly 2. The bottom is fixedly connected to a discharge pipe 3, and a control valve 4 is installed at the outlet end of the discharge pipe 3.

[0027] The top cover assembly 2 is provided with a stirring mechanism 5. The stirring mechanism 5 includes a drive unit 501 and a stirring shaft 502 driven by the drive unit to rotate alternately in the forward and reverse directions. The stirring shaft 502 is located at the center of the top cover assembly 2, and a mounting plate 503 is coaxially fixed at its bottom end. Multiple stirring rods 504 are evenly distributed on the mounting plate 503 along its circumference.

[0028] In this embodiment, the raw materials for molecular sieve production are fed into the top opening of the stirred tank 1, and then the top cover assembly 2 is installed at the top opening of the stirred tank 1. The raw materials inside the stirred tank 1 can then be stirred by the stirring mechanism 5 provided on the top cover assembly 2. The drive unit 501 in the stirring mechanism 5 can drive the stirring shaft 502 and the mounting plate 503 to rotate alternately in both directions. Multiple stirring rods 504 evenly distributed around the mounting plate 503 keep moving synchronously, thereby enabling the raw materials to be stirred alternately in both directions. This can disrupt the symmetry of the flow field and generate instantaneous turbulence, secondary flow and stretching flow. Compared with traditional unidirectional rotation stirring, the stirring efficiency is higher and the uniformity is better.

[0029] The drive unit 501 includes an input shaft 5011, which is rotatably mounted on the top of the top cover assembly 2. A first half gear 5012 is fixedly mounted on the input shaft 5011. A coaxial internal gear ring 5014 is fixedly connected to the outside of the input shaft 5011 through several circumferentially distributed radial support rods 5013. The internal gear ring 5014 has a half-tooth structure. The toothed parts of the first half gear 5012 and the internal gear ring 5014 are offset by 180 degrees in the circumferential direction and are arranged opposite each other. A second gear 5015 is fixedly mounted on the stirring shaft 502. The second gear 5015 is located between the first half gear 5012 and the internal gear ring 5014 and cooperates with both of them. The drive unit 501 also includes a drive motor 5016, which is fixed on the top cover assembly 2. Its output shaft is synchronously connected to the input shaft 5011 through a synchronous belt drive assembly 5017.

[0030] In this embodiment, after the drive motor 5016 starts, it drives the input shaft 5011 to rotate synchronously through the synchronous belt transmission assembly 5017. When the input shaft 5011 rotates continuously, the first half gear 5012 and the internal gear ring 5014 alternately mesh with the second gear 5015, thereby driving the stirring shaft 502 to rotate alternately in the forward and reverse directions.

[0031] All stirring rods 504 are rotatably connected to the mounting plate 503 via bearings, and each rotating shaft is fixedly fitted with a third gear 505. Each third gear 505 meshes with a large gear 506. The large gear 506 is fixedly fitted onto the mounting sleeve 507 fixedly provided at the bottom of the top cover assembly 2. The stirring shaft 502 is rotatably installed in the mounting sleeve 507 via bearings.

[0032] In this embodiment, when the stirring rod 504 rotates synchronously with the mounting plate 503, the third gear 505 will rotate along the large gear 506 and rotate through meshing. Therefore, the stirring rod 504 will rotate on the mounting plate 503 on its own while rotating synchronously with the mounting plate 503, thereby further improving the stirring effect.

[0033] The top cover assembly 2 includes an upper flange 201 and a lower assembly 202 that are coaxially integrally formed. The diameter of the upper flange 201 is larger than that of the lower assembly 202. The outer diameter of the lower assembly 202 is adapted to the inner diameter of the top opening of the mixing vessel 1, and the outer wall is provided with an external thread 203. The external thread 203 matches the internal thread 101 provided on the inner wall of the top opening of the mixing vessel 1. Multiple operating handles 204 are evenly distributed and fixed on the outer edge of the upper flange 201.

[0034] In this embodiment, the lower assembly 202 can be threaded with the internal thread 101 provided on the inner wall of the top opening of the mixing vessel 1 through the external thread 203. With the help of the operating handle 204, the top cover assembly 2 and the lower assembly 202 can be disassembled and installed.

[0035] The above embodiments only illustrate a certain implementation of the present utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the present utility model patent. It should be noted that for those skilled in the art, several modifications and improvements can be made without departing from the concept of the present utility model, and these all fall within the protection scope of the present utility model. Therefore, the protection scope of the present utility model patent should be determined by the appended claims.

[0036] It should be noted that the above content falls within the scope of the inventor's technical knowledge. Due to the vast and complex nature of the technical content in this field, the above content of this application does not necessarily constitute prior art.

Claims

1. A raw material uniform stirring device for molecular sieve production, characterized in that: The mixing vessel (1) has an open top structure and is detachably equipped with a top cover assembly (2), and a discharge pipe (3) is fixedly connected to the bottom. A control valve (4) is installed at the outlet end of the discharge pipe (3). The top cover assembly (2) is provided with a stirring mechanism (5). The stirring mechanism (5) includes a drive unit (501) and a stirring shaft (502) driven by it to rotate alternately in the forward and reverse directions. The stirring shaft (502) is located at the center of the top cover assembly (2), and a mounting plate (503) is coaxially fixed at its bottom end. Multiple stirring rods (504) are evenly distributed along the circumference of the mounting plate (503).

2. The raw material uniform stirring device for molecular sieve production according to claim 1, characterized in that: The drive unit (501) includes an input shaft (5011), which is rotatably mounted on the top of the top cover assembly (2). A first half gear (5012) is fixedly mounted on the input shaft (5011). A coaxial internal gear ring (5014) is fixedly connected to the outside of the input shaft (5011) through several radially distributed radial support rods (5013). The internal gear ring (5014) has a half-tooth structure. The toothed parts of the first half gear (5012) and the internal gear ring (5014) are offset by 180 degrees in the circumferential direction and are arranged opposite each other. A second gear (5015) is fixedly mounted on the stirring shaft (502). The second gear (5015) is located between the first half gear (5012) and the internal gear ring (5014) and cooperates with both of them.

3. The raw material uniform stirring device for molecular sieve production according to claim 2, characterized in that: The drive unit (501) also includes a drive motor (5016), which is fixed on the top cover assembly (2), and its output shaft is synchronously connected to the input shaft (5011) through a synchronous belt drive assembly (5017).

4. The raw material uniform stirring device for molecular sieve production according to claim 2, characterized in that: The stirring rods (504) are all rotatably connected to the mounting plate (503) via bearings, and each rotating shaft is fixedly fitted with a third gear (505). Each third gear (505) meshes with a large gear (506). The large gear (506) is fixedly fitted onto the mounting sleeve (507) fixedly installed at the bottom of the top cover assembly (2). The stirring shaft (502) is rotatably installed in the mounting sleeve (507) via bearings.

5. The raw material uniform stirring device for molecular sieve production according to claim 1, characterized in that: The top cover assembly (2) includes an upper flange (201) and a lower assembly (202) integrally formed on the same axis. The diameter of the upper flange (201) is larger than that of the lower assembly (202). The outer diameter of the lower assembly (202) is adapted to the inner diameter of the top opening of the mixing vessel (1), and the outer wall is provided with an external thread (203). The external thread (203) matches the internal thread (101) provided on the inner wall of the top opening of the mixing vessel (1).

6. The raw material uniform stirring device for molecular sieve production according to claim 5, characterized in that: Multiple operating handles (204) are evenly distributed and fixed on the outer circumference of the upper flange (201).

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