Receiving tank and jet mill

Abstract

The utility model relates to the technical field of jet mills, and discloses a material receiving tank and a jet mill, the material receiving tank comprises a material receiving tank main body, the upper end of the material receiving tank main body is connected with a connecting pipe through a flange; the flow limiting assembly is arranged in the connecting pipe, the flow limiting assembly is used for controlling circulation of materials and comprises a follow-up plate, a supporting plate and a flow guiding set, the supporting plate is fixedly connected with the inner wall of the connecting pipe, the materials are driven by airflow to pass through the end opening of the discharging opening, and due to arc-shaped treatment of the end opening of the discharging opening, flow separation caused by right angles is avoided; the discharging port is designed to be of a gradually-shrunk conical structure, sudden change of the section is avoided, turbulence intensity is reduced, influence of rotational flow formed by materials on the discharging speed is avoided, control over material discharging is achieved through mutual cooperation of internal parts of the flow limiting assembly, and the situation that due to continuous discharging in work, the working efficiency is improved is avoided. And the materials are directly discharged, so that the materials are wasted and the surrounding environment is influenced.

Description

Technical Field

[0001] This utility model belongs to the field of air jet mill technology, specifically, it relates to a receiving tank and an air jet mill. Background Technology

[0002] An air jet mill is a processing device that uses airflow to pulverize solid materials. In an air jet mill, solid materials are fed into the mill and then pulverized by the action of a high-speed rotating grinding disc and airflow.

[0003] A document with publication number (CN222267375U) discloses an anti-agglomeration airflow mill. The technical problem is that in traditional airflow mills, the magnetic powder particles, due to their magnetism, may agglomerate during grinding, affecting normal processing. The technical solution is an anti-agglomeration airflow mill comprising a tank, a feeding assembly, a separating assembly, a connecting assembly, a rotating assembly, a stirring assembly, and a supporting assembly. Compared to traditional airflow mills where magnetic powder may agglomerate during grinding, this invention prevents agglomeration by continuously agitating the pulverized magnetic powder during the pulverization stage and by using an agitation structure to stir the separated magnetic powder during the discharge stage, thus preventing agglomeration. This achieves anti-agglomeration treatment for the airflow mill.

[0004] The device has been improved to avoid agglomeration in the crushing process. However, in actual use, because the device discharges the material directly through the discharge pipe, the material forms a swirling flow at the discharge pipe port due to the change in airflow direction after contacting the port, which affects the material discharge rate.

[0005] In view of this, this utility model is proposed. Utility Model Content

[0006] To solve the technical problem of material discharge, the basic concept of the technical solution adopted by this utility model is as follows:

[0007] A receiving tank includes a receiving tank body, the upper end of which is connected to a connecting pipe via a flange; a flow limiting component is disposed inside the connecting pipe and is used to control the flow of materials. The flow limiting component includes a follower plate, a support plate, and a flow guiding assembly. The support plate is fixedly connected to the inner wall of the connecting pipe, the follower plate is elastically connected to the support plate, and the flow guiding assembly is fixedly connected to the follower plate.

[0008] In a preferred embodiment of this utility model, a plurality of sliding rods are arranged around the follower plate, each sliding rod is fixedly connected to the follower plate, and each follower plate is fixedly connected to the same transmission plate.

[0009] In a preferred embodiment of this utility model, each of the slide rods is slidably connected to the support plate, and each slide rod is fitted with a spring, the end of each spring being fixedly connected to the corresponding transmission plate and support plate.

[0010] In a preferred embodiment of this utility model, the flow guide group is composed of multiple ring blocks, with support rods arranged between the ring blocks, and the support rods are fixedly connected to the follower plate.

[0011] In a preferred embodiment of this utility model, each of the flow guide groups is fixedly connected with a guide block, the end of the guide block is arc-shaped, and each guide block faces the same direction.

[0012] An air jet mill includes an air jet mill body, a discharge port is provided at the bottom of the air jet mill body, the discharge port is threadedly connected to a connecting pipe, and all of the above-mentioned receiving tanks are provided at the bottom of the air jet mill body.

[0013] In a preferred embodiment of the present invention, the bottom of the air jet mill body is fixedly connected to the discharge port, the discharge port is tapered in shape, and the port connecting the discharge port and the air jet mill body is arc-shaped.

[0014] In a preferred embodiment of this utility model, an installation block is fixedly connected inside the discharge port, and multiple installation shells are fixedly connected to the installation block. Each installation shell is rotatably connected to a guide fan.

[0015] Compared with the prior art, the present invention has the following advantages:

[0016] 1. In this receiving tank and air jet mill, the material is carried by the airflow through the discharge port. Due to the arc treatment of the discharge port, flow separation caused by right angles is avoided. The discharge port is designed as a tapered structure to avoid abrupt changes in cross section, reduce turbulence intensity, and prevent the swirling flow formed by the material from affecting the discharge rate.

[0017] 2. This receiving tank and air jet mill, through the cooperation of the internal components of the flow limiting component, achieves control over material discharge, avoiding continuous material discharge during operation, which would lead to material waste and impact on the surrounding environment.

[0018] 3. In this receiving tank and air jet mill, when the material is carried by the airflow through the gap between each ring block of the guide group, the airflow and the material are cut and dispersed to produce flow separation. The separated material and airflow generate a certain angled vortex under the guidance of the guide block and are discharged outward, thereby increasing the unloading rate.

[0019] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description

[0020] In the attached diagram:

[0021] Figure 1 This is a three-dimensional schematic diagram of the present invention;

[0022] Figure 2 This is a schematic diagram of the internal structure of the discharge port of this utility model;

[0023] Figure 3 This is a schematic diagram of the discharge port and the internal structure of the connecting pipe of this utility model;

[0024] Figure 4 This is a schematic diagram of the internal structure of the connecting pipe of this utility model;

[0025] Figure 5 This is a schematic diagram of the internal structure of the discharge pipe of this utility model;

[0026] Figure 6 This is a schematic diagram of the upper structure of the flow guide assembly of this utility model.

[0027] In the diagram: 1. Airflow mill body; 2. Material receiving tank body; 3. Discharge port; 4. Connecting pipe; 5. Mounting block; 51. Mounting shell; 52. Guide fan; 6. Transmission plate; 61. Slide rod; 62. Spring; 63. Follower plate; 64. Support plate; 65. Guide assembly; 66. Guide block. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate this utility model.

[0029] Please see Figure 1-5 A receiving tank includes a receiving tank body 2, with a connecting pipe 4 connected to the upper end of the receiving tank body 2 via a flange; a flow-limiting component is disposed inside the connecting pipe 4 and is used to control the flow of materials. The flow-limiting component includes a follower plate 63, a support plate 64, and a flow guide group 65. The support plate 64 is fixedly connected to the inner wall of the connecting pipe 4, the follower plate 63 is elastically connected to the support plate 64, and the flow guide group 65 is fixedly connected to the follower plate 63. Through the mutual cooperation of the internal components of the flow-limiting component, the discharge of materials is controlled, avoiding continuous discharge during operation, which would cause waste of materials and impact the surrounding environment.

[0030] The following plate 63 is surrounded by multiple sliding rods 61, each of which is fixedly connected to the following plate 63. Each following plate 63 is fixedly connected to the same transmission plate 6. Each sliding rod 61 is slidably connected to the support plate 64, and each sliding rod 61 is fitted with a spring 62. The end of each spring 62 is fixedly connected to the corresponding transmission plate 6 and support plate 64. The guide group 65 consists of multiple sets of ring blocks, with support rods between the ring blocks. The support rods are fixedly connected to the following plate 63. When the connecting pipe 4 and the discharge port 3 approach each other through threads, the transmission plate 6 is squeezed and pushed by the inner wall of the discharge port 3, and the transmission plate 6 moves inward. The compression spring 62 drives the follower plate 63 to move. During the movement, the follower plate 63 separates from the support plate 64. After the follower plate 63 separates from the support plate 64, the material is driven by the airflow into the connecting pipe 4 and then into the receiving tank body 2. When the receiving tank body 2 contains an appropriate amount of material, the connecting pipe 4 and the discharge port 3 are separated by threads. The transmission plate 6 loses its force. Under the deformation force generated by the compression of the spring 62, the transmission plate 6 is pushed back to its original position and drives the follower plate 63 to move. The closing between the follower plate 63 and the support plate 64 seals the pipeline and restricts the discharge of material.

[0031] Each guide group 65 is fixedly connected to a guide block 66. The end of the guide block 66 is arc-shaped and each guide block 66 faces the same direction. When the material is driven by the airflow through the gap between each ring block of the guide group 65, the airflow and the material are cut and dispersed to produce flow separation. The separated material and airflow generate a certain angled vortex under the guidance of the guide block 66 and are discharged outward, thereby increasing the unloading rate.

[0032] An airflow mill includes an airflow mill body 1. A discharge port 3 is located at the bottom of the airflow mill body 1, and the discharge port 3 is threadedly connected to a connecting pipe 4. All the aforementioned receiving tanks are located at the bottom of the airflow mill body 1. The discharge port 3 is fixedly connected to the bottom of the airflow mill body 1. The discharge port 3 is tapered, and the port connecting the discharge port 3 to the airflow mill body 1 is arc-shaped. A mounting block 5 is fixedly connected inside the discharge port 3, and multiple mounting shells 51 are fixedly connected to the mounting block 5. Each mounting shell 51 is rotatably connected to a guide fan 52. The material is driven by the airflow through the port of the discharge port 3. Due to the arc-shaped treatment of the port of the discharge port 3, flow separation caused by right angles is avoided. The discharge port 3 is designed as a tapered structure with gradually decreasing or gradually expanding flow velocity to avoid abrupt changes in cross-section, reduce turbulence intensity, and prevent the swirling flow formed by the material from affecting the discharge rate. Through the mutual cooperation of the internal components of the flow-limiting component, the material discharge is controlled, avoiding continuous discharge during operation, which would lead to material waste and environmental impact.

[0033] It is worth noting that the air jet mill body 1 includes a tank, a feeding assembly, a separating assembly, a connecting assembly, a rotating assembly, a stirring assembly, and a supporting assembly. Compared with traditional air jet mills, where magnetic powder may be squeezed and agglomerated during grinding, thus affecting the normal processing of magnetic powder, this device prevents agglomeration by continuously stirring the crushed magnetic powder during the crushing stage and by using a stirring structure to stir the separated magnetic powder during the discharge stage, thereby preventing compression and agglomeration. This achieves anti-magnetic powder compression and agglomeration treatment for the air jet mill. The air jet mill body 1 has been disclosed in the prior art of an anti-agglomeration air jet mill CN222267375U, and will not be described in detail here.

[0034] Working Principle: When the connecting pipe 4 and the discharge port 3 are brought closer together via threads, the transmission plate 6 is pushed by the inner wall of the discharge port 3. The transmission plate 6 moves inward, compressing the spring 62 and driving the follower plate 63 to move. During this movement, the follower plate 63 separates from the support plate 64. After the follower plate 63 separates from the support plate 64, the material is driven by the airflow into the connecting pipe 4 and then into the receiving tank body 2. When the receiving tank body 2 contains a suitable amount of material, the connecting pipe 4 and the discharge port 3 are moved away via threads. The transmission plate 6 loses its force. Under the deformation force generated by the compression of the spring 62, the transmission plate 6 is pushed back to its original position, driving the follower plate 63 to move. The closing between the follower plate 63 and the support plate 64 seals the pipeline, restricting the discharge of material. Through the cooperation of the internal components of the flow-limiting assembly, the discharge of material is controlled, preventing material discharge during operation. Continuous material discharge during operation leads to material waste and environmental impact. When the material is carried by the airflow through the gaps between each ring block of the guide group 65, the airflow and material are cut and dispersed, resulting in flow separation. The separated material and airflow generate a vortex at a certain angle under the guidance of the guide block 66 and are discharged outward, thereby increasing the unloading rate. The material is carried by the airflow through the port of the discharge port 3. Due to the arc treatment of the port of the discharge port 3, flow separation caused by right angles is avoided. The discharge port 3 is designed as a tapered structure with gradually narrowing flow velocity or gradually widening flow velocity to avoid abrupt changes in cross-section, reduce turbulence intensity, and prevent the swirling flow formed by the material from affecting the discharge rate. Through the mutual cooperation of the internal components of the flow limiting component, the material discharge is controlled, avoiding continuous material discharge during operation that would lead to material waste and environmental impact.

[0035] It is understood that this utility model has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. Furthermore, under the teachings of this utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of this utility model.

Claims

1. A receiving tank, characterized in that, include: The receiving tank body (2) has a connecting pipe (4) connected to the upper end of the receiving tank body (2) via a flange. The flow limiting component is installed inside the connecting pipe (4). The flow limiting component is used to control the flow of materials. The flow limiting component includes a follower plate (63), a support plate (64) and a flow guide group (65). The support plate (64) is fixedly connected to the inner wall of the connecting pipe (4). The follower plate (63) is elastically connected to the support plate (64). The flow guide group (65) is fixedly connected to the follower plate (63).

2. The receiving tank according to claim 1, characterized in that, The follower plate (63) is surrounded by multiple slide rods (61), each slide rod (61) is fixedly connected to the follower plate (63), and each follower plate (63) is fixedly connected to the same transmission plate (6).

3. The receiving tank according to claim 2, characterized in that, Each of the slide rods (61) is slidably connected to the support plate (64), and each slide rod (61) is fitted with a spring (62), the end of each spring (62) being fixedly connected to the corresponding transmission plate (6) and support plate (64).

4. The receiving tank according to claim 1, characterized in that, The flow guide group (65) consists of multiple ring blocks, with support rods between the ring blocks, and the support rods are fixedly connected to the follower plate (63).

5. The receiving tank according to claim 4, characterized in that, Each of the flow guide groups (65) is fixedly connected to a guide block (66), the end of the guide block (66) is arc-shaped, and each guide block (66) has the same orientation.

6. An air jet mill, comprising an air jet mill body (1), characterized in that, The bottom of the air jet mill body (1) is provided with a discharge port (3), and the discharge port (3) is threadedly connected to the connecting pipe (4). The bottom of the air jet mill body (1) is provided with a receiving tank as described in any one of claims 1-5.

7. The air jet mill according to claim 6, characterized in that, The bottom of the air jet mill body (1) is fixedly connected to the discharge port (3). The discharge port (3) is tapered, and the port connecting the discharge port (3) and the air jet mill body (1) is arc-shaped.

8. The air jet mill according to claim 6, characterized in that, An installation block (5) is fixedly connected inside the discharge port (3), and multiple installation shells (51) are fixedly connected on the installation block (5). Each installation shell (51) is rotatably connected to a guide fan (52).

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