An air jet ultrafine grinder

Abstract

The utility model provides a kind of airflow superfine pulverizer, belong to the technical field of pulverizer.It include machine jar, feed pipe and stir component, the feed pipe is arranged at the side of machine jar, the stir component is arranged at the top of machine jar, the stir component includes cover plate, the top of cover plate is equipped with driving motor, the output of driving motor is fixedly connected with transmission rod, the outer surface of transmission rod is fixedly connected with arc-shaped paddle.The raw material inside machine jar can be stirred under the action of stir structure, and then can be broken with high-pressure high-temperature airflow, to avoid the raw material from settling in the inside of machine jar, and at the same time, under the action of filter component, the broken powder can be filtered to the bottom discharge port of filter disc, so that the broken powder can be filtered to the discharge port, and then new raw material can be added for breaking, to improve the overall efficiency.

Description

Technical Field

[0001] This utility model relates to the field of pulverizer technology, and in particular to an airflow ultrafine pulverizer. Background Technology

[0002] In fields such as new material processing, pharmaceutical preparations, and the food industry, the requirements for material fineness are becoming increasingly stringent. Airflow ultrafine pulverizers, with their advantages of high pulverization efficiency, low material contamination, and uniform finished particle size, have become the core equipment for achieving ultrafine material pulverization. Their working principle mainly involves using high-speed airflow to drive material particles to collide and rub against each other within the machine chamber, or to impact the inner wall of the equipment, thereby achieving the purpose of refining the material particle size. They are widely used in the deep processing of materials such as calcium carbonate, traditional Chinese medicine powders, and food additives. Existing airflow ultrafine pulverizers typically have a single-cavity internal structure, lacking a separation mechanism. During pulverization, powder that has reached the preset particle size remains mixed with uncrushed coarse particles, making it impossible to separate and discharge qualified powder in a timely manner. If new material to be pulverized is added to the canister, it will further mix with the already mixed powder and coarse particles. This not only affects the airflow due to excessive material concentration, reducing subsequent pulverization efficiency, but may also cause some qualified powder to be over-pulverized again, resulting in material waste. Because the particles to be pulverized have their own gravity, and the airflow distribution within the canister is difficult to be completely uniform, some uncrushed coarse particles easily settle to the bottom of the canister or adhere to the canister wall due to gravity during pulverization. These settled or adhered particles cannot fully contact the high-speed airflow or effectively collide with other particles, causing the pulverization process to stagnate and accumulate. Therefore, this application provides an airflow ultrafine pulverizer to meet the requirements. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide an airflow ultrafine pulverizer that can prevent the mixed powder after crushing from mixing with the uncrushed particles, which would prevent the addition of new material and require the entire material to be crushed before proceeding to the next step, thus reducing overall efficiency. In addition, the particles are prone to settling in the machine tank, which would reduce the crushing efficiency.

[0004] To solve the above-mentioned technical problems, this utility model provides the following technical solution: An airflow ultrafine pulverizer includes a machine tank; A feed pipe is located on one side of the machine tank; A stirring assembly is provided on the top of the tank. The stirring assembly includes a cover plate, a drive motor is installed on the top of the cover plate, a transmission rod is fixedly connected to the output end of the drive motor, and an arc-shaped stirring plate is fixedly connected to the outer surface of the transmission rod. A filter assembly is disposed at the bottom of the transmission rod, and the filter assembly includes a filter disc, which is rotatably connected to the bottom end of the transmission rod. A splash guard assembly is disposed at the top of the feed pipe.

[0005] The filter plate of the filter assembly can screen qualified powder that has reached the preset particle size after crushing in real time, so that qualified powder is separated from uncrushed coarse particles immediately, avoiding long-term mixing between the two. At this time, new material can be continuously added through the feed pipe without waiting for all the material in the tank to be crushed, which significantly improves the continuous operation capability and overall production efficiency of the equipment. At the same time, it avoids the waste of qualified powder due to over-crushing. The arc-shaped stirring plate of the stirring assembly rotates with the transmission rod, which can stir the material in the tank in all directions, breaking the sedimentation tendency of the material caused by gravity, ensuring that all particles can fully contact the high-speed airflow and participate in collision crushing, avoiding ineffective accumulation.

[0006] Optionally, an annular plate is fixedly connected to the top of the tank, the top of the annular plate has a first insertion hole, and the top of the cover plate has a second insertion hole.

[0007] The annular plate and the cover plate are fitted together, and the coaxial design of the first and second insertion holes can quickly align the relative positions of the cover plate and the tank, avoiding repeated calibration during the installation of traditional cover plates and greatly shortening the time required for the stirring components.

[0008] Optionally, a threaded rod is inserted into the inner wall of the first and second insertion holes, and a fixing nut is threaded to one end of the threaded rod.

[0009] The cover plate can be removed by unscrewing the fixing nut without damaging the structure, making it convenient to replace components such as the transmission rod and the arc-shaped stirring plate in the future.

[0010] Optionally, an annular retaining frame is fixedly connected to the inner wall of the tank, and an annular retaining block is engaged with the inner wall of the annular retaining frame.

[0011] The matching snap-fit ​​between the annular clip and the annular clip frame allows for the installation and positioning of the filter disc in one go, avoiding the hassle of multiple tightening points required by traditional filter structures such as bolt fixing. The snap-fit ​​structure ensures that the filter disc remains horizontal in the machine tank, preventing coarse particles from leaking through the edges due to the tilt of the filter disc, thus ensuring screening accuracy.

[0012] Optionally, the bottom of the annular card frame is provided with a circular insertion hole, and the bottom of the annular card block is fixedly connected with a circular insertion rod.

[0013] After the round insert rod is inserted into the round insert hole, it can fix the relative position of the annular clip block and the annular clip frame, preventing the filter disc from rotating synchronously when the transmission rod rotates.

[0014] Optionally, a slanted shovel plate is fixedly connected to the outer surface of the transmission rod, and the slanted shovel plate is located above the filter disc.

[0015] The inclined shovel plate rotates with the transmission rod, and its tilt angle is adapted to the top of the filter disc, which can shovel off the material deposited on the filter disc and send it back into the crushing area.

[0016] Optionally, the splash-proof assembly includes a feed frame, the bottom of which is fixedly connected to a feed pipe, U-shaped plates fixedly connected to both sides of the feed frame, a rotating rod rotatably connected between the two sides of the U-shaped plates, a rotating block fixedly connected to the outer surface of the rotating rod, a rectangular cover fixedly connected to the outer surface of the rotating block, and a torsion spring sleeved on the outer surface of the rotating rod, with both ends of the torsion spring fixedly connected to the rotating block and the U-shaped plate, respectively.

[0017] The torsion spring keeps the rectangular cover closed in the feed frame opening under normal conditions. When feeding, the material gravity pushes the rectangular cover open. After feeding, the torsion spring automatically drives the rectangular cover to reset and close. Compared with the traditional open feed pipe, it can avoid material splashing and loss, and at the same time prevent the high-speed airflow in the tank from overflowing and spreading material dust, improving the working environment and reducing dust pollution.

[0018] Optionally, a rectangular baffle is fixedly connected to the inner surface of the feed frame above the rectangular cover.

[0019] The rectangular baffle prevents the rectangular cover from rotating upwards, thus avoiding the internal powder and particles from splashing and impacting the rectangular baffle, causing it to rotate upwards and resulting in the internal powder and particles splashing out.

[0020] Compared with the prior art, this utility model has at least the following beneficial effects: The stirring structure agitates the raw materials inside the tank, allowing them to be crushed by high-pressure, high-temperature airflow. This prevents the raw materials from settling inside the tank. Simultaneously, the filtration components filter the crushed powder to the bottom outlet of the filter disc, enabling the powder to be filtered out and allowing new raw materials to be added for further crushing, thus improving overall efficiency.

[0021] The splash-proof components allow the rectangular cover to rotate during feeding, enabling the raw material to enter the feed pipe and the inside of the tank from the feed frame. Simultaneously, the rectangular baffles prevent the cover from rotating upwards, thus achieving a splash-proof effect. Attached Figure Description The accompanying drawings, which are incorporated herein and form part of the specification, illustrate embodiments of the present invention and, together with the specification, further serve to explain the principles of the present invention and enable those skilled in the art to implement and use the present invention.

[0022] Figure 1 This is a schematic diagram of the structure of an airflow ultrafine pulverizer; Figure 2 This is a cross-sectional structural diagram of an airflow ultrafine pulverizer; Figure 3 This is a schematic diagram of the cover plate structure of an airflow ultrafine pulverizer; Figure 4 This is a schematic diagram of the machine tank structure of an airflow ultrafine pulverizer; Figure 5 This is a schematic diagram of the filter disc structure of an airflow ultrafine pulverizer; Figure 6 For airflow ultrafine pulverizer Figure 4 Enlarged structural diagram at point A in the middle.

[0023] [Figure Labels] 1. Tank; 2. Feed pipe; 3. Tumbling assembly; 31. Cover plate; 32. Drive motor; 33. Transmission rod; 34. Arc-shaped stirring plate; 35. Annular plate; 36. First insertion hole; 37. Second insertion hole; 38. Threaded insertion rod; 39. Fixing nut; 4. Filter assembly; 41. Filter disc; 42. Annular frame; 43. Annular block; 44. Circular insert rod; 45. Circular insertion hole; 46. Angled shovel plate; 5. Splash-proof assembly; 51. Feed frame; 52. U-shaped plate; 53. Rotating rod; 54. Rotating block; 55. Rectangular cover; 56. Torsion spring; 57. Rectangular baffle; 6. Air intake pipe; 7. Support frame.

[0024] As shown in the figure, specific structures and devices are marked in the figure to clearly illustrate the structure of the embodiment of this utility model. However, this is only for illustrative purposes and is not intended to limit this utility model to this specific structure, device and environment. Those skilled in the art can adjust or modify these devices and environments according to specific needs. Detailed Implementation

[0025] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0026] In the description of this application, 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 indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0027] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "set up," "install," "connect," and "link" 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 technology based on the specific circumstances.

[0028] In the description of this application, spatial relation terms such as "below," "under," "below," "below," "above," "over," etc., are used herein to describe the relationship between one element or feature shown in the figures and other elements or features. It should be understood that, in addition to the orientation shown in the figures, spatial relation terms also include different orientations of the device in use and operation. For example, if the device in the figures is flipped, an element or feature described as "below" or "under" or "below" of other elements or features will be oriented "above" other elements or features. Therefore, the exemplary terms "below" and "under" can include both upper and lower orientations. Furthermore, the device may also include other orientations (e.g., rotated 90 degrees or other orientations), and the spatial descriptive terms used herein are interpreted accordingly.

[0029] In the description of this application, the term "for example" is used to mean "used as an example, illustration, or description." Any embodiment described as "for example" in this application is not necessarily to be construed as being more preferred or advantageous than other embodiments. The following description is provided to enable any person skilled in the art to implement and use the present invention. Details are set forth in the following description for purposes of explanation. It should be understood that those skilled in the art will recognize that the present invention can be implemented without using these specific details. In other instances, well-known structures and processes will not be described in detail to avoid obscuring the description of the present invention with unnecessary detail. Therefore, the present invention is not intended to be limited to the embodiments shown, but is consistent with the broadest scope of the principles and features disclosed in this application.

[0030] The airflow ultrafine pulverizer provided in this embodiment aims to solve the problems of mixed crushed powder and uncrushed particles, which prevent the addition of new material and require complete crushing before proceeding to the next step, reducing overall efficiency. Furthermore, particles tend to settle within the machine tank, further reducing crushing efficiency. The following technical solution addresses the issues of raw material mixing and sedimentation: It consists of a machine tank 1, a feed pipe 2, a stirring assembly 3, a filter assembly 4, and a splash guard 5. These components work together to achieve raw material filtration and separation, and to prevent sedimentation.

[0031] like Figures 1-6 As shown, an embodiment of this utility model provides an airflow ultrafine pulverizer, such as... Figure 1 As shown, the assembly includes a tank 1, a feed pipe 2, a stirring assembly 3, a filter assembly 4, a splash guard 5, an air inlet pipe 6, and a support frame 7. The air inlet pipe 6 is located on one side of the tank 1, and the support frame 7 is fixedly connected to the outer surface of the tank 1. The tank 1 is a hollow cavity with an open top, used to contain the material to be crushed and to perform the crushing operation. The feed pipe 2 is fixedly located on one side wall of the tank 1, and one end of the feed pipe 2 communicates with the internal cavity of the tank 1, used to convey the material to be crushed into the tank 1. Figure 1 and Figure 3 As shown, the agitation assembly 3 is detachably fitted onto the top opening of the tank 1. The agitation assembly 3 includes a cover plate 31 adapted to the top of the tank 1. A drive motor 32 is fixedly installed on the top of the cover plate 31. A Y100L-2 type three-phase asynchronous motor with a power of 3kW and a speed of 2800r / min is selected. The output end of the drive motor 32 vertically penetrates the cover plate 31 and is fixedly connected to a transmission rod 33. The transmission rod 33 extends into the interior of the tank 1, and at least three arc-shaped stirring plates 34 are fixedly connected axially to the outer surface of the transmission rod 33. The arc-shaped stirring plates 34 are used to rotate with the transmission rod 33 to agitate the material inside the tank 1. Figure 1 and Figure 3 As shown, the filter assembly 4 is located at the bottom of the transmission rod 33 and inside the machine tank 1. The filter assembly 4 includes a filter disc 41, which is a circular sieve plate made of stainless steel with a diameter of 490 mm and a thickness of 5 mm. Its surface is uniformly perforated with filter holes of 0.1 mm in diameter. The center of the filter disc 41 is rotatably connected to the bottom end of the transmission rod 33. The filter disc 41 is used to screen materials that have reached a preset particle size after crushing, such as… Figure 1 As shown, the anti-splash component 5 is fixedly installed at the top of the feed pipe 2 at the feed inlet to prevent material from splashing and airflow from overflowing from the tank 1 during feeding.

[0032] Under the action of the stirring component 3, the raw materials inside the machine tank 1 can be stirred to avoid the raw materials settling. The filter component 4 can filter and screen the crushed raw materials, and then the feeding and filtering can be circulated to improve the overall efficiency.

[0033] like Figure 3 and Figure 4 As shown, an annular plate 35 is fixedly connected to the top edge of the tank 1. The annular plate 35 is adapted to the edge of the cover plate 31. At least three first insertion holes 36 are evenly opened on the top of the annular plate 35 along the circumference. A second insertion hole 37 is opened on the top of the cover plate 31 at the position corresponding to the first insertion hole 36. The axes of the first insertion hole 36 and the second insertion hole 37 are collinear.

[0034] like Figure 3 and Figure 4 As shown, the inner walls of the first insertion hole 36 and the second insertion hole 37 are jointly provided with a threaded insertion rod 38. One end of the threaded insertion rod 38 extends through to the bottom of the annular plate 35 and is threadedly connected to a fixing nut 39. The threaded insertion rod 38 and the fixing nut 39 cooperate to detachably fix the cover plate 31 and the annular plate 35.

[0035] like Figures 3-5 As shown, an annular frame 42 is fixedly connected to the inner wall of the tank 1 below the filter disc 41. An annular block 43 is fitted and snapped onto the inner wall of the annular frame 42. The top of the annular block 43 is fixedly connected to the bottom of the filter disc 41. The annular frame 42 and the annular block 43 cooperate to position the filter disc 41.

[0036] like Figure 4 and Figure 5 As shown, at least two circular insertion holes 45 are evenly provided around the bottom of the annular card frame 42. A circular insertion rod 44 is fixedly connected to the bottom of the annular card block 43 at the position corresponding to the circular insertion hole 45. The outer wall of the circular insertion rod 44 is adapted to be inserted into the inner wall of the circular insertion hole 45 to limit the relative rotation between the annular card block 43 and the annular card frame 42.

[0037] like Figure 3 As shown, at least two inclined shovels 46 are fixedly connected to the outer surface of the transmission rod 33 above the filter circular plate 41. The inclination direction of the inclined shovels 46 is adapted to the rotation direction of the transmission rod 33, and is used to shovel off the material attached to the inner wall of the machine tank 1 as the transmission rod 33 rotates.

[0038] like Figure 1 and Figure 6As shown, the splash-proof assembly 5 includes a feed frame 51. The bottom of the feed frame 51 is fixedly connected to the top of the feed pipe 2 and is internally connected. U-shaped plates 52 are symmetrically fixedly connected to the outer walls of both sides of the feed frame 51. A rotating rod 53 is rotatably connected between the opposite sides of the two U-shaped plates 52. A rotating block 54 is fixedly connected to the middle of the outer surface of the rotating rod 53. A rectangular cover 55 adapted to the top opening of the feed frame 51 is fixedly connected to the outer surface of the rotating block 54. A torsion spring 56 is sleeved on the outer surface of the rotating rod 53 between the rotating block 54 and the U-shaped plate 52. The two ends of the torsion spring 56 are fixedly connected to the side wall of the rotating block 54 and the inner wall of the U-shaped plate 52, respectively. The torsion spring 56 is used to close the top opening of the feed frame 51 under normal conditions.

[0039] like Figure 4 As shown, a rectangular baffle 57 is fixedly connected to the inner surface of the feed frame 51 above the rectangular cover 55. The bottom of the rectangular baffle 57 is adapted to abut against the top of the rectangular cover 55 to limit the upward flipping angle of the rectangular cover 55.

[0040] Working principle like Figures 1-6 As shown, when in use, material is fed from the feed frame 51, which can drive the rectangular cover 55 to rotate, thereby causing the torsion spring 56 to deform. After feeding is completed, the material can be reset under the action of the torsion spring 56. When the internal raw materials splash upward, the rectangular cover 55 can be prevented from rotating upward under the action of the rectangular baffle 57, and the rectangular cover 55 can be limited. Before use, fix the cover plate 31 and the annular plate 35. At this time, the annular locking block 43 at the bottom of the filter round plate 41 is engaged with the annular locking frame 42. Then, insert the round insertion rod 44 into the round insertion hole 45. Under the action of the threaded insertion rod 38, insert it into the first insertion hole 36 and the second insertion hole 37, and fix it with the fixing nut 39 and the threaded insertion rod 38. At this time, the drive motor 32 is started, which enables the transmission rod 33 to drive the arc-shaped stirring plate 34 to rotate, thereby agitating the raw materials. At the same time, it can drive the inclined shovel plate 46 to rotate, thereby sweeping the raw materials on the top of the filter disc 41 to the top.

[0041] While embodiments or examples of this disclosure have been described with reference to the accompanying drawings, it should be understood that the above embodiments are merely exemplary embodiments or examples, and the scope of this utility model is not limited by these embodiments or examples, but only by the granted claims and their equivalents. Various elements in the embodiments or examples may be omitted or replaced by their equivalents. Furthermore, the steps may be performed in a different order than that described in this disclosure. Further, various elements in the embodiments or examples may be combined in various ways. Importantly, as the technology evolves, many elements described herein can be replaced by equivalents that appear after this disclosure.

Claims

1. An airflow ultrafine pulverizer, characterized in that, include: Machine tank (1); Feed pipe (2), the feed pipe (2) is located on one side of the machine tank (1); A stirring assembly (3) is set on the top of the tank (1). The stirring assembly (3) includes a cover plate (31). A drive motor (32) is installed on the top of the cover plate (31). A transmission rod (33) is fixedly connected to the output end of the drive motor (32). An arc-shaped stirring plate (34) is fixedly connected to the outer surface of the transmission rod (33). The filter assembly (4) is disposed at the bottom of the transmission rod (33). The filter assembly (4) includes a filter disc (41) which is rotatably connected to the bottom end of the transmission rod (33). Splash prevention component (5) is disposed at the top of feed pipe (2).

2. The airflow ultrafine pulverizer according to claim 1, characterized in that, The top of the tank (1) is fixedly connected to an annular plate (35), the top of the annular plate (35) is provided with a first insertion hole (36), and the top of the cover plate (31) is provided with a second insertion hole (37).

3. The airflow ultrafine pulverizer according to claim 2, characterized in that, A threaded rod (38) is inserted into the inner wall of the first insertion hole (36) and the second insertion hole (37), and a fixing nut (39) is threaded to one end of the threaded rod (38).

4. The airflow ultrafine pulverizer according to claim 1, characterized in that, The inner wall of the machine tank (1) is fixedly connected to an annular retaining frame (42), and the inner wall of the annular retaining frame (42) is engaged with an annular retaining block (43).

5. The airflow ultrafine pulverizer according to claim 4, characterized in that, The bottom of the annular card frame (42) is provided with a circular insertion hole (45), and the bottom of the annular card block (43) is fixedly connected with a circular insertion rod (44).

6. The airflow ultrafine pulverizer according to claim 1, characterized in that, An inclined shovel plate (46) is fixedly connected to the outer surface of the transmission rod (33), and the inclined shovel plate (46) is located above the filter disc (41).

7. The airflow ultrafine pulverizer according to claim 1, characterized in that, The splash-proof assembly (5) includes a feed frame (51), the bottom of which is fixedly connected to the feed pipe (2), and U-shaped plates (52) are fixedly connected to both sides of the feed frame (51). A rotating rod (53) is rotatably connected between the two sides of the U-shaped plate (52). A rotating block (54) is fixedly connected to the outer surface of the rotating rod (53). A rectangular cover (55) is fixedly connected to the outer surface of the rotating block (54). A torsion spring (56) is sleeved on the outer surface of the rotating rod (53). The two ends of the torsion spring (56) are fixedly connected to the rotating block (54) and the U-shaped plate (52) respectively.

8. The airflow ultrafine pulverizer according to claim 7, characterized in that, A rectangular baffle (57) is fixedly connected to the inner surface of the feed frame (51) above the rectangular cover (55).

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