A multi-stage airflow screening and impurity removal device

Abstract

The utility model discloses a multistage airflow screening and impurity removing device relates to airflow sieve technical field, including the shell body, the shell body side end is equipped with the feeding assembly, the feeding assembly side end is equipped with the power component, be equipped with the inner filter screen in the shell body, the output shaft is fixedly installed through the support in the inner filter screen, be equipped with the rotating mechanism on the output shaft, the rotating mechanism is used for scattering the false big granule that material agglomeration forms, be equipped with the fixing mechanism on the rotating mechanism, the fixing mechanism is used for positioning the rotating mechanism, in the new type, through the inner filter screen rotation, realizes material preliminary screening and airflow delivery, and simultaneously cooperates the reverse rotation of mesh plate (the mesh plate is 45 degree inclination) that the rotating mechanism rotates the ring drives, can scatter the false big granule that material agglomeration forms to avoid false screening, can also pass through the double airflow synergistic enhancement material disturbance and conveying capacity to reduce the retention congestion to the comprehensive promotion of screening precision and efficiency.

Description

Technical Field

[0001] This utility model relates to the field of airflow sieving technology, and in particular to a multi-stage airflow sieving and impurity removal device. Background Technology

[0002] An air classifier is a high-precision screening device for separating fine powders using a mesh screen. It is widely used in industries such as chemical, pharmaceutical, food, papermaking, metallurgy, building materials, rubber, and machinery. It can effectively and continuously screen powdery materials with a fineness range of 80-500 mesh. The screen mesh is replaceable, and the air classifier boasts high screening efficiency, large output, precise fineness, and no oversize mixing. The vertically mounted screen is not load-bearing, has a long service life, adapts to a wide fineness range, features a fully enclosed structure to prevent dust spillage, low noise, low energy consumption, continuous operation, and convenient maintenance.

[0003] While the mainstream airflow screening devices on the market are simple in structure and low in cost, they have revealed many thorny problems in actual use.

[0004] Several food processing companies reported that the equipment had difficulty effectively breaking up the pseudo-large particles formed by the agglomeration of food materials during the screening process. This caused some materials that met the particle size requirements to be misjudged as impurities and retained, resulting in a decrease in the recovery rate of effective ingredients in the finished product of about 4% to 6%. Utility Model Content

[0005] Technical problems to be solved To address the shortcomings of existing technologies, this utility model provides a multi-stage airflow screening and impurity removal device, which solves the technical problem that the device is unable to effectively disperse the pseudo-large particles formed by the agglomeration of food materials during the screening process, resulting in some materials that meet the particle size requirements being misjudged as impurities and retained, and the recovery rate of effective ingredients in the finished product being reduced by about 4% to 6%.

[0006] Technical solution To achieve the above objectives, this utility model provides the following technical solution: A multi-stage airflow screening and impurity removal device includes an outer shell, a feeding assembly at one side of the outer shell, a power assembly at one side of the feeding assembly, an inner filter screen inside the outer shell, an output shaft fixedly mounted inside the inner filter screen via a bracket, a rotating mechanism on the output shaft, the rotating mechanism being used to break up pseudo-large particles formed by material agglomeration, and a fixing mechanism on the rotating mechanism for positioning the rotating mechanism.

[0007] Preferably, the fixing mechanism includes an L-shaped bracket, which is fixedly installed on the outer shell. The L-shaped bracket has a mounting groove, in which a mounting bearing is fixedly installed, and a rotating shaft is fixedly installed on the mounting bearing.

[0008] Preferably, the rotating mechanism includes a first gear, which is fixedly mounted on a rotating shaft. A second gear is fixedly mounted on the first gear. Two limiting rings are fixedly mounted on the output shaft, and a rotating collar is provided between the two limiting rings. A third gear is fixedly mounted on the output shaft, and the third gear meshes with the first gear. The second gear meshes with the left side of the circumferential surface of the rotating collar. A mesh plate is fixedly mounted on the rotating collar, and the mesh plate is installed at a 45-degree angle to the rotating collar.

[0009] Compared with the prior art, the present invention has the following beneficial effects: In this new type of material, the material is initially screened and conveyed by rotating the inner filter screen. At the same time, the rotating collar in the rotating mechanism drives the screen plate to rotate in the opposite direction (the screen plate is tilted at a 45-degree angle). This can not only break up the pseudo-large particles formed by material agglomeration to avoid misscreening, but also enhance the material disturbance and conveying capacity through the synergy of dual airflow to reduce retention and blockage, thereby comprehensively improving the screening accuracy and efficiency. Attached Figure Description

[0010] The above description is only an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings.

[0011] Figure 1 This is a structural diagram of the entire utility model; Figure 2 This is a structural diagram of the outer shell of this utility model; Figure 3 This is a structural diagram of the output shaft of this utility model; Figure 4 This is a structural diagram of the mesh plate of this utility model; Figure 5 This utility model Figure 4 Enlarged view of the structure at point A.

[0012] Legend: 1. L-shaped bracket; 2. Mounting slot; 3. Mounting bearing; 4. Rotating shaft; 5. First gear; 6. Second gear; 7. Rotating collar; 8. Mesh plate; 9. Output shaft; 10. Limiting ring; 11. Third gear; 13. Inner filter screen; 14. Outer shell; 15. Feeding assembly; 16. Power assembly. Detailed Implementation

[0013] This application provides a multi-stage airflow screening and impurity removal device, which effectively solves the technical problem that the device is unable to effectively disperse the pseudo-large particles formed by the agglomeration of food materials during the screening process, resulting in some materials that meet the particle size requirements being misjudged as impurities and retained, and the recovery rate of effective ingredients in the finished product being reduced by about 4% to 6%.

[0014] Example: Figures 1-5 As shown, the technical solution in this application aims to effectively solve the problem that the device is unable to effectively disperse the pseudo-large particles formed by the agglomeration of food materials during the screening process, resulting in some materials that meet the particle size requirements being misjudged as impurities and retained, thus reducing the recovery rate of effective ingredients in the finished product by about 4% to 6%. The overall idea is as follows: To address the problems existing in the prior art, this utility model provides a multi-stage airflow screening and impurity removal device, including a housing 14, a feeding assembly 15 on the side of the housing 14, a power assembly 16 on the side of the feeding assembly 15, and an inner filter screen 13 inside the housing 14. An output shaft 9 is fixedly installed inside the inner filter screen 13 by a bracket. The feeding assembly 15 feeds the material into the inner filter screen 13, and then the power assembly 16 drives the inner filter screen 13 to rotate, thereby screening the material. When the inner filter screen 13 rotates, airflow is also generated inside it to transport the material.

[0015] The output shaft 9 is equipped with a rotating mechanism, which is used to break up the pseudo-large particles formed by the agglomeration of materials. The rotating mechanism is also equipped with a fixing mechanism, which is used to position the rotating mechanism.

[0016] The fixing mechanism includes an L-shaped bracket 1, which is fixedly installed on the outer shell 14. The L-shaped bracket 1 has a mounting groove 2, and a mounting bearing 3 is fixedly installed in the mounting groove 2. A rotating shaft 4 is fixedly installed on the mounting bearing 3. When the rotating mechanism rotates, the rotating shaft 4 will rotate. Through the installation of the mounting bearing 3 and the fixing of the L-shaped bracket 1, the rotating shaft 4 and the rotating mechanism are kept in one position.

[0017] The rotating mechanism includes a first gear 5, which is fixedly mounted on a rotating shaft 4. A second gear 6 is fixedly mounted on the first gear 5. Two limiting rings 10 are fixedly mounted on the output shaft 9, and a rotating collar 7 is provided between the two limiting rings 10. A third gear 11 is fixedly mounted on the output shaft 9, and the third gear 11 meshes with the first gear 5. The second gear 6 meshes with the left side of the circumferential surface of the rotating collar 7. A mesh plate 8 is fixedly mounted on the rotating collar 7, and the mesh plate 8 is installed at a 45-degree angle to the rotating collar 7. When the output shaft 9 rotates, the output... The third gear 11 on the output shaft 9 will rotate. Through the meshing of the third gear 11 with the first gear 5, the first gear 5 can rotate. At this time, the first gear 5 drives the second gear 6 to rotate. Then, through the meshing between the second gear 6 and the rotating collar 7, the rotating collar 7 rotates, which in turn drives the screen plate 8 to rotate. The rotation direction is opposite to that of the output shaft 9, which can break up the pseudo-large particles formed by the agglomeration of materials. Moreover, the rotation of the screen plate 8 will generate relative airflow, which will enhance the material disturbance and conveying capacity and reduce retention and blockage when performing airflow screening of powdery materials.

[0018] Working principle: In the first step, the feeding assembly 15 conveys the material to be screened into the inner filter screen 13 inside the outer casing 14. Subsequently, the power assembly 16 starts, driving the output shaft 9 to rotate. The rotation of the output shaft 9 synchronously drives the inner filter screen 13 to rotate. During the rotation of the inner filter screen 13, a directional airflow is formed inside it. The airflow carries the material, allowing small particles that meet the pore size of the inner filter screen 13 to pass through the mesh and complete the initial screening. Larger impurities or substandard particles are trapped inside the inner filter screen 13.

[0019] In the second step, when the output shaft 9 rotates, the third gear 11 fixed on its surface rotates along with it. Since the third gear 11 meshes with the first gear 5 fixed on the rotating shaft 4, the rotation of the third gear 11 drives the first gear 5 and the rotating shaft 4 to rotate (the rotating shaft 4 is stably supported by the mounting bearing 3 in the mounting groove 2 on the L-shaped bracket 1, ensuring its position is fixed during rotation). When the first gear 5 rotates, it synchronously drives the second gear 6 fixedly connected to it to rotate. The second gear 6 meshes with the rotating collar 7 (located between the two limiting rings 10) sleeved on the output shaft 9, thereby driving the rotating collar 7 to rotate in the opposite direction (the direction of rotation is opposite to that of the output shaft 9 and the inner filter screen 13). The reverse rotation of the rotating collar 7 drives the screen plate 8 fixed on its surface to move synchronously (installed at a 45-degree angle to the rotating collar 7). During rotation, the screen plate 8 generates shearing and impact forces on the material, breaking up pseudo-large particles formed by agglomeration. At the same time, the relative airflow generated by the rotation of the screen plate 8 and the airflow generated by the rotation of the inner filter screen 13 work together to enhance material disturbance and conveying capacity, reducing stagnation and blockage.

[0020] Finally, it should be noted that the above embodiments are merely examples for clearly illustrating the present invention and are not intended to limit the implementation. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A multi-stage airflow screening and impurity removal device, comprising an outer shell (14), characterized in that: The outer shell (14) is provided with a feeding assembly (15) on its side, and a power assembly (16) is provided on its side. An inner filter (13) is provided inside the outer shell (14), and an output shaft (9) is fixedly installed inside the inner filter (13) by a bracket. The output shaft (9) is provided with a rotating mechanism, which is used to break up the pseudo-large particles formed by the agglomeration of materials. The rotating mechanism is provided with a fixing mechanism, which is used to position the rotating mechanism.

2. The multi-stage airflow screening and impurity removal device according to claim 1, characterized in that: The fixing mechanism includes an L-shaped bracket (1), which is fixedly installed on the outer shell (14).

3. The multi-stage airflow screening and impurity removal device according to claim 2, characterized in that: The L-shaped bracket (1) has an installation groove (2), and an installation bearing (3) is fixedly installed in the installation groove (2) of the L-shaped bracket (1). A rotating shaft (4) is fixedly installed on the installation bearing (3).

4. The multi-stage airflow screening and impurity removal device according to claim 3, characterized in that: The rotating mechanism includes a first gear (5), which is fixedly mounted on the rotating shaft (4).

5. The multi-stage airflow screening and impurity removal device according to claim 4, characterized in that: A second gear (6) is fixedly installed on the first gear (5), and two limiting rings (10) are fixedly installed on the output shaft (9).

6. The multi-stage airflow screening and impurity removal device according to claim 5, characterized in that: A rotating collar (7) is provided between the two limiting rings (10), and a third gear (11) is fixedly installed on the output shaft (9).

7. The multi-stage airflow screening and impurity removal device according to claim 6, characterized in that: The third gear (11) meshes with the first gear (5), and the second gear (6) meshes with the left side of the circumferential surface of the rotating collar (7).

8. The multi-stage airflow screening and impurity removal device according to claim 7, characterized in that: A mesh plate (8) is fixedly installed on the rotating collar (7), and the mesh plate (8) is installed at a 45-degree angle to the rotating collar (7).

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