An improved turbo mill

Abstract

The utility model discloses an improved vortex mill, including shell, airflow injection nozzle, fixed knife subassembly and moving knife subassembly, the shell is cylindrical shell, is equipped with air outlet and discharge gate at the top, is equipped with the feed port at the bottom, the airflow injection nozzle sets up at the air inlet, the fixed knife subassembly includes fixed knife, a plurality of fixed knife fixed settings are on the inner wall of shell, the moving knife subassembly includes moving knife, a plurality of moving knife can be around the periphery mobile place in the shell, and the fixed knife has the clearance with moving knife. Use above -mentioned improved vortex mill, can carry out the breakage to the material frame through the direct collision of particle, can also carry out the breakage to the material through the friction of particle when moving with fixed knife or with the impact collision of moving knife, not only has promoted the efficiency of crushing, can reach better material crushing effect.

Description

Technical Field

[0001] This utility model relates to the field of airflow pulverization technology, specifically to an improved vortex mill. Background Technology

[0002] The crushing principle of a vortex mill is based on the high-speed rotation of a mechanical structure that carries material particles and generates collisions and friction. After the material is introduced into the vortex zone by the feeder, it undergoes violent collisions and friction with the rotating turbine blades or the fixed cavity wall, thus achieving fine crushing.

[0003] In existing technologies, vortex mills can only crush materials by driving the workpiece to rotate, which is not only inefficient but also results in a relatively large particle size of the crushed material. Utility Model Content

[0004] In view of the shortcomings of the existing technology, this utility model proposes an improved vortex mill, which can improve the crushing efficiency and crushing effect of materials.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: an improved vortex mill, comprising a shell, an airflow jet nozzle, a fixed blade assembly, and a moving blade assembly; The outer shell is a cylindrical shell with an air outlet and a material outlet at the top and a material inlet at the bottom; The airflow jet nozzle is located at the air inlet; The fixed blade assembly includes a fixed blade, and a plurality of the fixed blades are fixedly disposed on the inner wall of the housing; The moving blade assembly includes a moving blade, and a plurality of the moving blades are circumferentially movable within the housing, with a gap between the fixed blade and the moving blade.

[0006] In operation, the air jet nozzle injects ultra-high-speed airflow into the housing through the air inlet, and activates the moving blade assembly to rotate the moving blades inside the housing. Material is added into the housing through the feed inlet. Driven by the airflow, the material particles collide directly with each other, rub against the fixed blades, or impact the moving blades. The pulverized material is carried by the airflow to the air outlet. Material that meets the fineness requirements can be collected, while material that does not meet the requirements continues to be pulverized.

[0007] The beneficial effects of the aforementioned improved vortex mill are as follows: Under the guidance of the airflow, the material can be crushed both through direct collision with the material rack and through friction between the particles and the fixed blades or impact collisions with the moving blades. Compared to the high friction and airflow resistance of traditional vortex mill structures, this not only improves the crushing efficiency but also achieves better material crushing results.

[0008] Furthermore, the outer casing has a main shaft in the middle, and the internal space is annular, allowing airflow to flow within the annular space. The air inlet is arranged along the tangential direction of the outer casing.

[0009] The air jet nozzle delivers ultra-high-speed airflow into the housing through an air inlet set along the tangential direction. The airflow drives the material to move within the annular space inside the housing.

[0010] Furthermore, multiple fixed blades are fixedly arranged sequentially on the inner wall of the outer casing along the circumferential direction, with the tips of the fixed blades inclined toward the direction of airflow.

[0011] Particles carried by the airflow can continue to move after contacting and rubbing against the surface of the fixed blade, thus avoiding being blocked or stagnant.

[0012] Furthermore, the inclination angle of the tooth tip of the fixed cutter is 60°.

[0013] The fixed cutter has good wear resistance when the tooth tip is tilted at 60°.

[0014] Furthermore, the fixed blade assembly also includes a door and a base plate. An opening is provided on the outer wall of the housing. The door is rotatably disposed at the opening. The base plate is detachably disposed inside the door. The fixed blade is disposed on the base plate.

[0015] Since the fixed blade is fixed, the bottom plate and the fixed blade can be removed after opening the box door, so that different fixed blades can be replaced according to different material requirements.

[0016] Furthermore, the moving tool assembly also includes a drive source, the spindle is rotatably disposed within the housing, and a plurality of the moving tools are circumferentially disposed on the spindle, the drive source being capable of driving the spindle to rotate.

[0017] By driving the spindle to rotate through the drive source, the moving blades can move inside the housing, thereby impacting and colliding with the moving material particles and crushing them.

[0018] Furthermore, the moving blades are provided in multiple groups along the axial direction of the main shaft, and each group includes multiple moving blades arranged circumferentially.

[0019] Multiple moving blades provide a larger impact range, improving the crushing effect on material particles. Attached Figure Description

[0020] To more clearly illustrate the specific embodiments of this utility model, the accompanying drawings used in the specific embodiments will be briefly described below. In all the drawings, the elements or parts are not necessarily drawn to scale.

[0021] Figure 1A front view of an improved vortex mill provided in an embodiment of this utility model; Figure 2 for Figure 1 A top view of an improved vortex mill is shown. Figure 3 for Figure 2 The diagram shows another state of an improved vortex mill; Figure label: 10-Outer shell, 11-Air inlet, 12-Feed inlet, 13-Air outlet; 20 - Airflow jet nozzle; 30-Fixed blade assembly, 31-Fixed blade, 32-Box door, 33-Base plate; 40-Moving tool assembly, 41-Moving tool, 42-Motor, 43-Spindle. Detailed Implementation

[0022] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings. These embodiments are merely illustrative of the present invention and should not be construed as limiting the scope of protection of the present invention.

[0023] Please see Figures 1 to 3 This utility model provides an improved vortex mill, including a housing 10, an air jet nozzle 20, a fixed blade assembly 30 and a moving blade assembly 40. The air jet nozzle 20 delivers ultra-high-speed airflow into the housing 10, which, together with the fixed blade assembly 30 and the moving blade assembly 40, can crush material particles.

[0024] Specifically, the outer casing 10 is a cylindrical shell with an air inlet 11 and a feed inlet 12 at the bottom and an air outlet 13 at the top, with a screen at the air outlet 13. The air jet nozzle 20 is a Laval nozzle, located at the air inlet 11. The air inlet 11 and the feed inlet 12 share the same inlet, capable of accelerating compressed air to supersonic speeds. The fixed blade assembly 30 includes fixed blades 31, with multiple fixed blades 31 fixedly mounted on the inner wall of the outer casing 10. The moving blade assembly 40 includes moving blades 41, with multiple moving blades 41 circumferentially movable within the outer casing 10. A gap of 1.8-2.0 mm exists between the fixed blades 31 and the moving blades 41, serving as a passage for airflow and material.

[0025] In operation, the air jet nozzle 20 injects ultra-high-speed airflow into the housing 10 through the air inlet 11, while the moving blade 41 rotates inside the housing 10. Material is added into the housing 10 through the feed inlet 12. Driven by the ultra-high-speed airflow, the material particles not only collide directly with each other but also rub against the fixed blade 31 or impact the moving blade 41. The pulverized material is carried by the airflow to the air outlet 13. Material that meets the fineness requirements is collected, while material that does not meet the requirements continues to be pulverized. Through direct collision of particles, friction with the fixed blade 31, and impact collision with the moving blade 41, the pulverization efficiency is improved, and a better pulverization effect is achieved on the material.

[0026] Specifically, the outer casing 10 has a main shaft 43 in the middle, so its internal space is annular, allowing airflow to flow within the annular space. The air inlet 11 is arranged along the tangential direction of the outer casing 10. The air jet nozzle 20 delivers ultra-high-speed airflow into the outer casing 10 through the air inlet 11, and the airflow drives the material to move within the annular space.

[0027] Specifically, multiple fixed blades 31 are fixedly arranged sequentially along the circumferential direction on the inner wall of the outer casing 10, and the tips of the fixed blades (i.e., blade tips) are inclined towards the direction of airflow, at a 60° angle relative to the radial direction of the casing. After the particles moved by the airflow come into contact with and rub against the surface of the fixed blades, they can continue to move with the airflow through the inclined blade surfaces. The inclined fixed blades can prevent the material from being blocked and its movement from stopping, and the 60° inclination angle of the blade tips provides both a larger contact area and improved wear resistance.

[0028] In this embodiment, the fixed blade assembly 30 also includes a door 32 and a base plate 32, both of which are arc-shaped. An opening is provided on the outer wall of the outer casing 10. The door 32 is rotatably disposed at the opening, and the base plate 32 is detachably disposed inside the door 32. The fixed blade 31 is disposed on the base plate 32. Since the fixed blade 31 is fixed and cannot be adjusted, the door 32 can be opened to remove the base plate 32 and the fixed blade 31, facilitating replacement according to different material requirements.

[0029] Specifically, the moving blade assembly 40 also includes a drive source, which in this embodiment is a motor 42. The main shaft 43 is rotatably disposed inside the housing 10, and a plurality of moving blades 41 are circumferentially disposed on the main shaft 43. The motor 42 is connected to the main shaft 43 and can drive the main shaft 43 to rotate, thereby causing the moving blades 41 to move inside the housing 10 and opposite to the direction of material movement, so as to impact and collide with the high-speed moving material particles and crush the material.

[0030] Furthermore, multiple sets of moving blades 41 are arranged along the axial direction of the main shaft 43, each set including multiple circumferentially arranged moving blades 41. This allows the moving blade assembly 40 to have a larger range of impact and collision with the material, improving the crushing effect on material particles.

[0031] The working principle of the improved vortex mill described above is as follows: The air jet nozzle 20 injects ultra-high-speed airflow into the housing 10 through the air inlet 11, while the motor 42 drives the moving blade 41 to rotate. Material is added into the housing 10 through the feed inlet 12. Driven by the ultra-high-speed airflow, the material particles not only collide directly with each other but also impact and rub against the fixed blade 31 or impact and collide with the moving blade 41. The pulverized material reaches the screen at the air outlet 13 with the airflow. Material that meets the fineness requirements is collected, while material that does not meet the requirements continues to be pulverized.

[0032] Using the aforementioned improved vortex mill, the material, guided by the airflow, can be crushed not only by direct collision of particles with the material rack, but also by friction between the particles and the fixed blades or by impact collision with the moving blades. This improves the crushing efficiency and achieves a better material crushing effect.

[0033] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model, and they should all be covered within the scope of the claims and specification of this utility model.

Claims

1. An improved vortex mill, characterized in that: Includes housing, airflow jet nozzle, fixed blade assembly, and moving blade assembly; The outer shell is a cylindrical shell with an air outlet and a material outlet at the top and a material inlet at the bottom; The airflow jet nozzle is located at the air inlet; The fixed blade assembly includes a fixed blade, and a plurality of the fixed blades are fixedly disposed on the inner wall of the housing; The moving blade assembly includes a moving blade, and a plurality of the moving blades are circumferentially movable within the housing, with a gap between the fixed blade and the moving blade.

2. The improved vortex mill according to claim 1, characterized in that: The outer casing has a main shaft in the middle and an internal space that is annular, allowing airflow to flow within the annular space. The air inlet is located along the tangential direction of the outer casing.

3. An improved vortex mill according to claim 2, characterized in that: Multiple fixed blades are fixedly arranged sequentially along the circumferential direction on the inner wall of the outer casing, and the tips of the fixed blades are inclined towards the direction of airflow.

4. An improved vortex mill according to claim 3, characterized in that: The angle of inclination of the tooth tip of the fixed cutter is 60°.

5. An improved vortex mill according to claim 3, characterized in that: The fixed blade assembly also includes a door and a base plate. An opening is provided on the outer wall of the housing. The door is rotatably disposed at the opening. The base plate is detachably disposed inside the door. The fixed blade is disposed on the base plate.

6. An improved vortex mill according to claim 2, characterized in that: The moving tool assembly also includes a drive source. The spindle is rotatably disposed within the housing, and a plurality of the moving tools are circumferentially disposed on the spindle. The drive source is capable of driving the spindle to rotate.

7. An improved vortex mill according to claim 6, characterized in that: The moving cutter is provided in multiple groups along the axial direction of the main shaft, and each group includes multiple moving cutters arranged circumferentially.

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