A staged stirring device for aluminum hydroxide

Abstract

This utility model provides an aluminum hydroxide grading and stirring device, belonging to the field of grading equipment technology. It includes a base, with a grading mechanism mounted on top of the base. The grading mechanism includes a grading cylinder, with supporting legs arranged in a circular array fixedly connected to the lower end of the grading cylinder. The lower ends of multiple supporting legs are fixedly connected to the upper end of the base. A receiving plate arranged in a linear array is fixedly connected to the outside of the grading cylinder. Through the combined use of the grading mechanism and the stirring mechanism, the different apertures of the upper and lower sieve plates achieve precise particle grading. A micro servo electric cylinder and a ring baffle control the discharge timing to prevent ungraded particles from flowing out. Furthermore, a servo motor drives the rotating shaft, and a scraper stirs the particles to ensure uniform sieve passage. An arc-shaped pusher block assists in the discharge of graded material. This not only improves the grading accuracy of aluminum hydroxide particles but also enhances the smoothness of the graded discharge.

Description

Technical Field

[0001] This utility model relates to the field of grading equipment technology, and in particular to a grading and stirring device for aluminum hydroxide. Background Technology

[0002] Aluminum hydroxide, also known as aluminum hydroxide or aluminum hydroxide powder, is a commonly used ceramic material and catalyst. Its particle size has a significant impact on its performance and applications. The classification and stirring of aluminum hydroxide particles refers to the process of separating the particles into different grades according to their size through stirring and mixing them. The particles can be divided into multiple different grades according to their size and then discharged and collected separately. Currently, the classification of granular aluminum hydroxide usually requires multiple sieving with different screens to classify and collect particles of different sizes, which is a rather cumbersome operation.

[0003] For example, a Chinese patent document discloses a graded stirring device for aluminum hydroxide (publication number: CN221360958U). Although this patent can grade aluminum hydroxide raw materials through multiple sieves, starting the stirring motor drives the stirring rod to rotate. It can not only screen aluminum hydroxide, but also stir aluminum hydroxide raw materials of different grades. Starting the rotary motor drives the stirring drum to rotate, which can effectively improve the screening efficiency and stirring efficiency of aluminum hydroxide raw materials. It integrates screening and stirring, thus simplifying the operation process, shortening the processing time, and reducing the labor and machinery costs required for aluminum hydroxide production, thereby greatly increasing the production profit of aluminum hydroxide.

[0004] However, the discharge port is open. After the granular material enters the screen plate, due to the stirring motion of the stirring rod, some small granular materials are discharged directly from the discharge port before they are screened out by the centrifugal force and the stirring flow field. This reduces the particle classification accuracy. Furthermore, after the stirring and screening are completed, the discharge from the discharge port relies entirely on the centrifugal force when the stirring rod rotates, which can easily lead to poor discharge and reduced particle classification efficiency. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies, such as the low precision in aluminum hydroxide particle grading and the difficulty in discharging the graded particles.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A graded stirring device for aluminum hydroxide includes a base, and a grading mechanism is disposed above the base;

[0008] The grading mechanism includes a grading cylinder, with a ring-shaped array of support legs fixedly connected to the lower end of the grading cylinder. The lower ends of the support legs are fixedly connected to the upper end of the base. A linear array of receiving plates is fixedly connected to the outside of the grading cylinder. The upper inner wall of the grading cylinder has symmetrically distributed slots. Inserts are movably inserted into the inner wall of the slots. The upper ends of two inserts are fixedly connected to cover plates, and the lower ends of the cover plates are in contact with the upper end of the grading cylinder.

[0009] A stirring mechanism is provided at the upper end of the cover plate.

[0010] Preferably, each of the two opposing surfaces of the inserts is fixedly connected with annular mounting blocks arranged in a linear array. The outer side of the annular mounting blocks is slidably sleeved with the inner wall of the grading cylinder, and a sieve plate is fixedly sleeved on the upper inner wall of the annular mounting blocks.

[0011] Preferably, the upper end of the annular mounting block is provided with an annular collecting groove and an annular mounting groove, the inner wall of the annular collecting groove is provided with a discharge channel, one end of the discharge channel is connected to one end of the receiving plate, and the inner bottom wall of the annular mounting groove is fixedly installed with symmetrically distributed miniature servo electric cylinders.

[0012] Preferably, one end of each of the piston rods of the two micro servo electric cylinders is fixedly connected to an annular baffle, the lower end of the annular baffle is slidably sleeved with the inner wall of the annular mounting groove, and the lower end of the grading cylinder is fixedly connected to a discharge pipe.

[0013] Preferably, the stirring mechanism includes a servo motor, the lower end of which is fixedly installed to the upper end of the cover plate. The output shaft of the servo motor is fixedly installed with a rotating shaft via a coupling. One end of the rotating shaft passes through the cover plate and extends to the bottom of the sieve plate. Scrapers arranged in a linear array are fixedly connected to the outside of the rotating shaft.

[0014] Preferably, the lower end of the scraper contacts the upper end of the sieve plate, and a connecting rod arranged in a linear array is fixedly connected to the outside of the rotating shaft. An arc-shaped pushing block is fixedly connected to one end of the connecting rod, and the outside of the arc-shaped pushing block is slidably connected to the inner wall of the annular collecting groove.

[0015] Preferably, the upper end of the base is fixedly installed with symmetrically distributed hydraulic cylinders, one end of the piston rod of the hydraulic cylinder is fixedly connected to a lifting block, the opposing surfaces of the two lifting blocks are fixedly connected to the outside of the cover plate, and a feeding port is opened on the top of the cover plate.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] In this invention, the grading mechanism and the stirring mechanism work together, with different apertures on the upper and lower sieve plates, to achieve precise particle grading. The micro servo electric cylinder and the annular baffle control the discharge timing to prevent ungraded particles from flowing out. The servo motor drives the rotating shaft, and the scraper stirs the particles to ensure they pass through the sieve evenly. The arc-shaped pusher block assists in the discharge of the graded material. This not only improves the grading accuracy of aluminum hydroxide particles but also enhances the smoothness of the graded discharge. Attached Figure Description

[0018] Figure 1 A schematic diagram of the main structure of an aluminum hydroxide graded stirring device provided by this utility model;

[0019] Figure 2 A three-dimensional view of the grading cylinder structure of an aluminum hydroxide grading stirring device provided by this utility model;

[0020] Figure 3 An exploded view of the classifying cylinder structure of an aluminum hydroxide classifying stirring device provided by this utility model;

[0021] Figure 4 A three-dimensional view of the annular mounting block structure of an aluminum hydroxide graded stirring device provided by this utility model.

[0022] Legend: 1. Base; 2. Grading cylinder; 21. Support leg; 22. Receiving plate; 23. Slot; 24. Insert strip; 25. Cover plate; 26. Annular mounting block; 27. Screen plate; 28. Annular collecting trough; 29. ​​Annular mounting trough; 210. Discharge channel; 211. Miniature servo electric cylinder; 212. Annular baffle; 213. Discharge pipe; 3. Servo motor; 31. Rotating shaft; 32. Scraper; 33. Connecting rod; 34. Arc-shaped pushing block; 4. Hydraulic cylinder; 41. Lifting block; 5. Feed port. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0024] To facilitate understanding of this utility model, a more comprehensive description of this utility model will be provided below with reference to relevant embodiments, and several embodiments of this utility model will be given. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of this utility model more thorough and complete.

[0025] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0027] Example

[0028] like Figures 1-4 As shown, this utility model provides a technical solution: an aluminum hydroxide grading and stirring device, including a base 1, wherein the grading mechanism on the base 1 works in coordination with the stirring mechanism to achieve accurate grading, efficient material discharge and convenient operation and maintenance.

[0029] The grading cylinder 2 serves as the main space for grading operations. It is stably supported on the base 1 by the support legs 21, providing a closed environment for the internal grading operations. The receiving plates 22 arranged in a linear array on its exterior are used to receive particles of different sizes, achieving classified collection.

[0030] The slot 23 on the inner wall of the upper end of the grading cylinder 2 cooperates with the insert 24, so that the cover plate 25 can be quickly installed and removed for easy subsequent cleaning. The cover plate 25 fits the upper end of the grading cylinder 2 to ensure the sealing of the grading operation and prevent material splashing.

[0031] The annular mounting block 26 on the insert 24 is slidably sleeved with the inner wall of the grading cylinder 2. The sieve plate 27 fixed on the inner wall of the annular mounting block 26 has a larger upper pore size than the lower pore size. By using different pore sizes, aluminum hydroxide particles can be stratified and screened according to particle size, providing a basis for precise grading.

[0032] The annular collection trough 28 at the upper end of the annular mounting block 26 is used to temporarily store the graded particles. The discharge channel 210 connects to the receiving plate 22 to realize the discharge. The miniature servo electric cylinder 211 in the annular mounting trough 29 can drive the annular baffle 212 to rise and fall. When stirring, the annular collection trough 28 is closed to force the particles to pass through the sieve for grading. When discharging, it is opened to control the particles to enter the collection trough, avoid ungraded particles from flowing out, and improve the grading accuracy.

[0033] The lower end of the annular baffle 212 is slidably sleeved with the inner wall of the annular mounting groove 29. The opening and closing of the annular collection groove 28 is controlled by lifting. The discharge pipe 213 at the lower end of the grading cylinder 2 is used to discharge the smallest particles deposited at the bottom of the cylinder.

[0034] The servo motor 3 at the top of the cover plate 25 provides power for stirring. Its output shaft drives the rotating shaft 31 to rotate through the coupling, so that the rotating shaft 31 extends through the cover plate 25 to the bottom of the sieve plate 27, providing power support for the scraper 32 and the arc-shaped push block 34.

[0035] The lower end of the scraper 32 outside the rotating shaft 31 contacts the upper end of the screen plate 27. When the rotating shaft 31 rotates, it adheres to the surface of the screen plate 27 and pushes the material, forcing large particles to be screened on the upper screen plate 27 and small particles to pass through the lower screen plate 27 in sequence, avoiding particle accumulation and clogging of the screen holes, so that the material is evenly dispersed and the grading efficiency is improved.

[0036] The connecting rod 33 on the rotating shaft 31 drives the arc-shaped push block 34 to slide along the inner wall of the annular collection groove 28, pushing the graded particles to the discharge channel 210. With the help of centrifugal force and thrust, the problem of poor discharge is solved, ensuring that the particles are discharged quickly and completely.

[0037] The hydraulic cylinder 4 on the base 1 drives the cover plate 25 to rise and fall through the lifting block 41, which makes it convenient for workers to quickly clean the residual materials inside the grading cylinder 2, reduce the difficulty of operation and maintenance, and improve the cleaning efficiency.

[0038] The working process of this utility model:

[0039] Step 1: Aluminum hydroxide raw material is evenly fed into the grading cylinder 2 through the feeding port 5 above the cover plate 25. The servo motor 3 is started, and the output shaft drives the rotating shaft 31 to rotate through the coupling. The scraper 32 on the rotating shaft 31 rotates with the rotating shaft 31, and pushes the material against the surface of the screen plate 27. Large particles are forced to be screened on the upper screen plate 27, and small particles pass through the lower screen plate 27 in sequence. The smallest particles fall to the bottom of the grading cylinder 2. The upper screen plate 27 retains large-diameter particles, the lower screen plate 27 retains small-diameter particles, and the smallest particles are deposited at the bottom of the cylinder, thus achieving precise grading.

[0040] Step 2: After the stirring and grading are completed, the micro servo electric cylinder 211 is started. The piston rod retracts, which drives the annular baffle 212 to retract from the annular mounting groove 29, releasing the inlet of the annular collection groove 28. The particles intercepted by the screen plates 27 at different levels are thrown into the corresponding level annular collection groove 28 under the centrifugal force generated by the rotation of the rotating shaft 31. When the rotating shaft 31 rotates, the connecting rod 33 drives the arc-shaped push block 34 to slide along the inner wall of the annular collection groove 28, continuously pushing the particles in the groove to the discharge channel 210. The particles flow into the receiving plate 22 through the discharge channel 210 and are finally introduced into the external collection container. The smallest particles at the bottom of the grading cylinder 2 are naturally discharged through the discharge pipe 213.

[0041] Step 3: Start the hydraulic cylinder 4. The piston rod extends and drives the cover plate 25 to rise, so that the annular mounting block 26 is separated from the grading cylinder 2. After the cover plate 25 is raised, the inside of the grading cylinder 2 is completely open, which is convenient for manual cleaning and also convenient for back-blowing cleaning of the screen plate 27 by high-pressure air gun.

[0042] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A fractional stirring device for aluminum hydroxide, comprising a base (1), characterized in that: A grading mechanism is provided above the base (1); The grading mechanism includes a grading cylinder (2), the lower end of which is fixedly connected to a support leg (21) arranged in a ring array. The lower ends of the multiple support legs (21) are fixedly connected to the upper end of the base (1). The outside of the grading cylinder (2) is fixedly connected to a receiving plate (22) arranged in a linear array. The upper inner wall of the grading cylinder (2) is provided with symmetrically distributed slots (23). Inserts (24) are movably inserted into the inner wall of the slots (23). The upper ends of the two inserts (24) are fixedly connected to a cover plate (25). The lower end of the cover plate (25) is in contact with the upper end of the grading cylinder (2). A stirring mechanism is provided at the upper end of the cover plate (25).

2. The aluminum hydroxide grading and stirring device according to claim 1, characterized in that: The two inserts (24) are fixedly connected to each other with annular mounting blocks (26) arranged in a linear array. The outer side of the annular mounting block (26) is slidably sleeved with the inner wall of the grading cylinder (2). A sieve plate (27) is fixedly sleeved on the upper inner wall of the annular mounting block (26).

3. The apparatus according to claim 2, wherein: The upper end of the annular mounting block (26) is provided with an annular collection groove (28) and an annular mounting groove (29). The inner wall of the annular collection groove (28) is provided with a discharge channel (210). One end of the discharge channel (210) is connected to one end of the receiving plate (22). The inner bottom wall of the annular mounting groove (29) is fixedly installed with symmetrically distributed miniature servo electric cylinders (211).

4. The apparatus according to claim 3, wherein: One end of the piston rod of each of the two micro servo electric cylinders (211) is fixedly connected to an annular baffle (212). The lower end of the annular baffle (212) is slidably sleeved with the inner wall of the annular mounting groove (29). The lower end of the grading cylinder (2) is fixedly connected to the discharge pipe (213).

5. The apparatus according to claim 4, wherein: The stirring mechanism includes a servo motor (3), the lower end of which is fixedly installed with the upper end of the cover plate (25). The output shaft of the servo motor (3) is fixedly installed with a rotating shaft (31) via a coupling. One end of the rotating shaft (31) passes through the cover plate (25) and extends to the bottom of the sieve plate (27). Scrapers (32) arranged in a linear array are fixedly connected to the outside of the rotating shaft (31).

6. The apparatus according to claim 5, wherein: The lower end of the scraper (32) contacts the upper end of the sieve plate (27). The rotating shaft (31) is fixedly connected to the outside of a connecting rod (33) arranged in a linear array. One end of the connecting rod (33) is fixedly connected to an arc-shaped push block (34). The outside of the arc-shaped push block (34) is slidably connected to the inner wall of the annular collection groove (28).

7. The apparatus of claim 1, wherein: The upper end of the base (1) is fixedly installed with symmetrically distributed hydraulic cylinders (4). One end of the piston rod of the hydraulic cylinder (4) is fixedly connected to a lifting block (41). The opposing surfaces of the two lifting blocks (41) are fixedly connected to the outside of the cover plate (25). A feeding port (5) is opened on the top of the cover plate (25).

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