Efficient crushing nozzle structure of jet mill

Abstract

The utility model discloses an efficient crushing nozzle structure of a jet mill, which comprises a main body, a plurality of groups of exhaust holes are formed in the main body, an adjusting mechanism is arranged on the main body, and the adjusting mechanism comprises a connecting sleeve, a rotating sleeve, a matching sleeve, a screw rod, a connecting plate, a control sleeve, a sealing sleeve, a through groove and a positioning mechanism, the connecting sleeve is fixed to the top end of the main body, the rotating sleeve is rotationally installed at the top end of the connecting sleeve, the adjusting process of the adjusting mechanism is more flexible and accurate through the matched design of the connecting sleeve and the rotating sleeve, and the rotating sleeve is rotated to drive the matching sleeve to be in threaded fit with the screw so as to push the connecting plate and drive the control sleeve and the sealing sleeve to slide. The blocking area of the through groove is adjusted, the air flow can be accurately controlled through the adjusting mechanism, adjustment is carried out according to different production requirements, and stability and high efficiency in the airflow crushing process are guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of airflow pulverization technology, and more specifically, to a high-efficiency pulverizing nozzle structure for an airflow pulverizer. Background Technology

[0002] In many pulverizing processes and production environments, air jet milling technology is widely used for efficient pulverization of materials. However, existing nozzle designs often lack sufficient adjustability, making it difficult to control the airflow. In some fine pulverization scenarios, the adjustment of airflow is crucial because different materials have different requirements for airflow in terms of pulverization effect.

[0003] Especially in applications that require precise control of particle size and grinding efficiency, traditional nozzle designs cannot flexibly adjust the air flow rate according to the material characteristics, resulting in resource waste and unsatisfactory grinding effect. In addition, because the air flow rate of the nozzle is difficult to adjust, operators often cannot optimize it according to the needs of the production process, which further affects production efficiency.

[0004] On the other hand, existing nozzle structures usually lack proper positioning functions when adjusting airflow, which can easily lead to nozzle displacement or instability after adjustment. In some continuous production scenarios, once the nozzle position shifts, it can not only cause inconsistent crushing effects, but also increase equipment wear and maintenance costs. The lack of positioning design makes it difficult to maintain a stable state for precise airflow control, thereby affecting the reliability of the overall system and the smooth operation of the production process. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] In view of the problems existing in the prior art, this utility model provides a high-efficiency pulverizing nozzle structure for an airflow pulverizer to solve the technical problems mentioned in the background art.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: a high-efficiency pulverizing nozzle structure for an airflow pulverizer, comprising a main body, wherein an exhaust hole is provided on the main body, and multiple sets of exhaust holes are provided. An adjustment mechanism is provided on the main body, the adjustment mechanism comprising a connecting sleeve, a rotating sleeve, a mating sleeve, a screw, a connecting plate, a control sleeve, a sealing sleeve, a through groove, and a positioning mechanism. The connecting sleeve is fixed to the top of the main body, the rotating sleeve is rotatably mounted on the top of the connecting sleeve, the mating sleeve is fixed inside the rotating sleeve, the screw is threadedly connected inside the mating sleeve, the connecting plate is fixed to the bottom end of the screw, the control sleeve is fixed to the top surface of the connecting plate, the sealing sleeve is fixed to the inner wall of the connecting sleeve and slidably connected to the control sleeve, multiple sets of through grooves are provided distributed on the outer wall of the control sleeve, and the positioning mechanism comprises an mounting sleeve, a limiting block, a limiting groove, a return spring, and a limiting sleeve. The mounting sleeve is fixed to the bottom surface of the rotating sleeve, multiple sets of limiting blocks are provided and slide on the outer wall of the mounting sleeve, multiple sets of limiting grooves are provided and distributed on the outer wall of the connecting sleeve, the return spring is mounted on the top of multiple sets of limiting blocks and its bottom end is fixedly connected to the outer wall of the mounting sleeve, and the limiting sleeve slides on the outer wall of the connecting sleeve.

[0009] The present invention is further configured such that an unlocking mechanism is provided on the outer side of the connecting sleeve. The unlocking mechanism includes a support rod, a limiting block, a rotating sleeve, a limiting groove, and a clearance groove. Multiple sets of support rods are provided on the bottom surface of the limiting sleeve. The limiting block is fixed to the bottom end of the multiple sets of support rods. The rotating sleeve rotates on the outer wall of the connecting sleeve. Multiple sets of limiting grooves are provided on the top surface of the rotating sleeve. The clearance groove is provided at one end of the multiple sets of limiting grooves.

[0010] The present invention is further configured such that the top surface of the connecting plate is provided with guide rods, and multiple sets of guide rods are provided, all of which are slidably connected to the cover. The slidable connection between the guide rods and the cover effectively ensures smooth movement between the control sleeve and the cover, preventing deviation or jamming, improving the stability and accuracy during the adjustment process, and thus making the airflow adjustment smoother.

[0011] The present invention is further configured such that an external connecting pipe is connected to the top end of the rotating sleeve. The design of the external connecting pipe enhances the connectivity and flexibility of the system, making it easier for the rotating sleeve to connect to external systems, facilitating the guidance and adjustment of airflow, and improving the adaptability and ease of operation of the overall equipment.

[0012] The present invention is further configured such that both ends of the multiple sets of limiting blocks are rounded. The rounded design at both ends of the limiting blocks reduces friction with the limiting grooves, avoids jamming during operation, thereby improving the stability and service life of the adjustment mechanism and ensuring stable operation of the equipment under long-term use.

[0013] The present invention is further characterized in that the inner side of the limiting sleeve is provided with rounded corners. The rounded corners on the inner side of the limiting sleeve allow the limiting block to cooperate more smoothly with the limiting sleeve, reducing wear on the edges and corners, improving durability and ensuring stability during long-term use.

[0014] This invention is further configured such that an annular groove is formed on the top surface of the rotating sleeve, and an arc-shaped slider is slidably disposed within the annular groove. Multiple sets of arc-shaped sliders are provided, each with a connecting ring fixed at its top. A tension spring is connected between the top surface of each set of connecting rings and the bottom surface of the limiting sleeve. The cooperation between the annular groove and the arc-shaped sliders makes the rotating sleeve more flexible during adjustment. The tension force of the springs on the connecting rings maintains a stable connection between the rotating sleeve and the limiting sleeve, preventing loosening during adjustment and ensuring precise operation and stability of the equipment.

[0015] The present invention is further configured such that a guide block is provided on the inner side of the limiting sleeve, and multiple sets of guide blocks are provided; a guide groove is provided on the outer wall of the connecting sleeve, and multiple sets of guide grooves are provided and slidably connected to multiple sets of guide blocks respectively. The design of the guide block and guide groove enhances the guiding effect between the limiting sleeve and the connecting sleeve, making the rotation process smoother, avoiding deviation and friction, and improving the durability and operating accuracy of the equipment.

[0016] (III) Beneficial Effects

[0017] Compared with the prior art, this utility model provides a high-efficiency pulverizing nozzle structure for an airflow pulverizer, which has the following beneficial effects:

[0018] 1. The adjustment mechanism, through the cooperative design of the connecting sleeve and the rotating sleeve, makes the adjustment process more flexible and precise. The rotating sleeve drives the mating sleeve to engage with the screw, thereby pushing the connecting plate and causing the control sleeve and the sealing sleeve to slide, thus adjusting the sealing area of ​​the through slot. This adjustment mechanism can precisely control the airflow and adjust it according to different production needs, ensuring the stability and efficiency of the airflow pulverization process. In addition, the sliding cooperation between the sealing sleeve and the through slot makes the airflow adjustment process smoother, avoiding drastic fluctuations in airflow, thereby improving the overall performance and pulverization effect of the equipment.

[0019] 2. The positioning mechanism design ensures that the adjusted nozzle position remains stable and does not change, enhancing the stability of the system. Through the cooperation of the limit block and the limit groove, multiple sets of limit blocks are connected to the limit sleeve through the action of the return spring, thereby accurately positioning the rotating sleeve. This design effectively avoids the displacement of the nozzle position during the adjustment process, ensures the stability of the nozzle during long-term use, reduces production instability and equipment wear caused by inaccurate positioning, and improves operating accuracy and equipment service life.

[0020] 3. The design of the unlocking mechanism makes the nozzle adjustment process more convenient and flexible. When readjustment is required, the unlocking function of the rotating sleeve can easily release the limit sleeve, allowing the limit block to disengage from the limit groove, thereby unlocking the rotating sleeve. This allows operators to quickly adjust the nozzle position. Through the action of the tension spring, the limit sleeve and limit block can automatically reset, avoiding any jamming or obstruction during the adjustment process. The addition of the unlocking function improves the ease of use of the equipment, enabling operators to make quick adjustments under different working conditions and ensuring the efficient operation of the equipment in complex environments. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of a high-efficiency pulverizing nozzle structure for an airflow pulverizer according to the present invention;

[0022] Figure 2 This is a cross-sectional view of the adjustment mechanism in this utility model;

[0023] Figure 3 This is a cross-sectional view of the positioning mechanism in this utility model.

[0024] Figure 4 This is a schematic diagram of the limiting sleeve in this utility model;

[0025] Figure 5 This is a schematic diagram of the rotating sleeve in this utility model.

[0026] In the diagram: 1. Main body; 2. Exhaust port; 3. Connecting sleeve; 4. Rotating sleeve; 5. Mating sleeve; 6. Screw; 7. Connecting plate; 8. Control sleeve; 9. Sealing sleeve; 10. Through groove; 11. Mounting sleeve; 12. Limiting block; 13. Limiting groove; 14. Return spring; 15. Limiting sleeve; 16. Support rod; 17. Limiting block; 18. Rotating sleeve; 19. Limiting groove; 20. Relief groove; 21. Guide rod; 22. Outer pipe; 23. Annular groove; 24. Arc-shaped slider; 25. Connecting ring; 26. Tension spring; 27. Guide block; 28. Guide groove. Detailed Implementation

[0027] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0028] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0029] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0030] Please see Figures 1-5 A high-efficiency pulverizing nozzle structure for an airflow pulverizer includes a main body 1 with multiple sets of exhaust holes 2. An adjustment mechanism is also provided on the main body 1, comprising a connecting sleeve 3, a rotating sleeve 4, a mating sleeve 5, a screw 6, a connecting plate 7, a control sleeve 8, a sealing sleeve 9, a through groove 10, and a positioning mechanism. The connecting sleeve 3 is fixed to the top of the main body 1, the rotating sleeve 4 is rotatably mounted on the top of the connecting sleeve 3, the mating sleeve 5 is fixed inside the rotating sleeve 4, the screw 6 is threaded into the mating sleeve 5, the connecting plate 7 is fixed to the bottom of the screw 6, and the control sleeve 8 is fixed to the connecting sleeve 10. On the top surface of plate 7, the cover 9 is fixed to the inner wall of the connecting sleeve 3 and slidably connected to the control sleeve 8. The through groove 10 is provided with multiple sets distributed on the outer wall of the control sleeve 8. The positioning mechanism includes mounting sleeve 11, limiting block 12, limiting groove 13, reset spring 14 and limiting sleeve 15. Mounting sleeve 11 is fixed to the bottom surface of rotating sleeve 4. The limiting block 12 is provided with multiple sets sliding on the outer wall of mounting sleeve 11. The limiting groove 13 is provided with multiple sets distributed on the outer wall of connecting sleeve 3. The reset spring 14 is installed on the top of multiple sets of limiting blocks 12 and the bottom end is fixedly connected to the outer wall of mounting sleeve 11. The limiting sleeve 15 slides on the outer wall of connecting sleeve 3.

[0031] An unlocking mechanism is provided on the outside of the connecting sleeve 3. The unlocking mechanism includes a support rod 16, a limiting block 17, a rotating sleeve 18, a limiting groove 19, and a clearance groove 20. Multiple sets of support rods 16 are distributed on the bottom surface of the limiting sleeve 15. The limiting block 17 is fixed to the bottom end of the multiple sets of support rods 16. The rotating sleeve 18 rotates on the outer wall of the connecting sleeve 3. Multiple sets of limiting grooves 19 are distributed on the top surface of the rotating sleeve 4. The clearance groove 20 is located at one end of the multiple sets of limiting grooves 19.

[0032] The top surface of the connecting plate 7 is provided with guide rods 21, and multiple sets of guide rods 21 are provided, all of which are slidably connected to the cover 9.

[0033] The guide rod 21, through its sliding connection with the cover 9, ensures that the cover maintains a stable movement trajectory during adjustment, reduces friction and resistance, and guarantees the accuracy and smoothness of airflow adjustment.

[0034] The top of the rotating sleeve 4 is connected to an external pipe 22.

[0035] The external pipe 22 enables the rotating sleeve 4 to connect to an external system, provides an interface for airflow guidance, enhances the adaptability and operational flexibility of the equipment, and facilitates the adjustment and control of airflow.

[0036] Both ends of the multiple sets of limiting blocks 12 are set to be arc-shaped.

[0037] The arc-shaped design at both ends of the limit block 12 reduces contact friction with the limit groove, making the adjustment process smoother, avoiding jamming and wear, and improving operating accuracy and equipment lifespan.

[0038] The inner side of the limiting sleeve 15 is rounded.

[0039] The rounded corner design on the inner side of the limiting sleeve 15 helps the limiting block and the limiting sleeve to cooperate smoothly, reduces friction and wear between the contact surfaces, and ensures the smoothness and stability of the adjustment.

[0040] The top surface of the rotating sleeve 4 is provided with an annular groove 23, and an arc-shaped slider 24 is slidably provided in the annular groove 23. Multiple sets of arc-shaped sliders 24 are provided, and each of them is fixed with a connecting ring 25 at its top. A tension spring 26 is connected between the top surface of the multiple sets of connecting rings 25 and the bottom surface of the limiting sleeve 15.

[0041] The design of the annular groove 23 and the arc-shaped slider 24 makes the rotating sleeve 4 more flexible during adjustment. The tension spring 26 ensures a stable connection between the rotating sleeve and the limiting sleeve 15 by pulling the connecting ring 25, avoiding loosening or instability during adjustment, and ensuring precise adjustment and long-term reliability.

[0042] The inner side of the limiting sleeve 15 is provided with guide blocks 27, and multiple sets of guide blocks 27 are provided. The outer wall of the connecting sleeve 3 is provided with guide grooves 28, and multiple sets of guide grooves 28 are provided and are slidably connected to multiple sets of guide blocks 27 respectively.

[0043] The cooperation between the guide block 27 and the guide groove 28 enhances the guiding function between the limit sleeve 15 and the connecting sleeve 3, making them more stable during rotation, avoiding offset and friction, and improving the accuracy of the adjustment process and the durability of the equipment.

[0044] In this embodiment, when the gas flow rate needs to be adjusted, rotating the rotating sleeve 4 drives the mating sleeve 5 to engage with the screw 6 through a threaded connection. The screw 6 drives the connecting plate 7 to push the control sleeve 8 and the sealing sleeve 9 to slide. The sealing sleeve 9 changes the sealing area of ​​the multiple sets of through slots 10, thereby adjusting the area of ​​the gas flow space. After adjustment, the limiting sleeve 15 is pushed to abut against the top of the multiple sets of limiting blocks 12 and to squeeze the return spring 14, so that the bottom of the multiple sets of limiting blocks 12 is engaged in the limiting groove 13, positioning the rotating sleeve 4. Then, the multiple sets of limiting blocks 17 move into the relief groove 20. Rotating the rotating sleeve 18 causes the multiple sets of limiting blocks 17 to slide into the limiting groove 19. At the same time, the limiting sleeve 15 stretches the multiple sets of tension springs 26. The multiple sets of limiting blocks 17 abut against the outer wall of the rotating sleeve 4, thereby limiting the limiting sleeve.

[0045] More specifically, when it is necessary to unlock and readjust the rotating sleeve 4, rotating the rotating sleeve 18 causes multiple sets of limiting blocks 17 to move into the clearance groove 20, thereby releasing the limitation on the limiting sleeve 15. Multiple sets of tension springs 26 pull the limiting sleeve 15 to release the contact with multiple sets of limiting blocks 12. Multiple sets of reset springs 14 pull the multiple sets of limiting blocks 12 so that their bottom ends are disengaged from the limiting groove 13, thereby releasing the lock on the rotating sleeve 4, and then readjustment can be performed again.

[0046] In summary, during the use or operation of the overall equipment: when gas flow needs to be adjusted, rotating the rotating sleeve 4 drives the mating sleeve 5 to engage with the screw 6 through a threaded connection. The screw 6 drives the connecting plate 7 to push the control sleeve 8 and the sealing sleeve 9 to slide. The sealing sleeve 9 changes the sealing area of ​​the multiple sets of through slots 10, thereby adjusting the area of ​​the gas flow space. After adjustment, the limiting sleeve 15 is pushed to abut against the top of the multiple sets of limiting blocks 12 and to squeeze the return spring 14, so that the bottom of the multiple sets of limiting blocks 12 is engaged in the limiting groove 13, positioning the rotating sleeve 4. Subsequently, the multiple sets of limiting blocks 17 move into the relief groove 20. Rotating the rotating sleeve 18 causes the multiple sets of limiting blocks 17 to slide into the limiting groove 19. At the same time, the limiting sleeve 15 stretches the multiple sets of tension springs 26. The multiple sets of limiting blocks 17 abut against the outer wall of the rotating sleeve 4, thereby limiting the limiting sleeve.

[0047] When it is necessary to unlock and readjust the rotating sleeve 4, rotating the rotating sleeve 18 causes multiple sets of limiting blocks 17 to move into the clearance groove 20, thereby releasing the limitation on the limiting sleeve 15. Multiple sets of tension springs 26 pull the limiting sleeve 15 to release the contact with multiple sets of limiting blocks 12. Multiple sets of reset springs 14 pull the multiple sets of limiting blocks 12 so that their bottom ends are disengaged from the limiting groove 13, thereby releasing the lock on the rotating sleeve 4, and then readjustment can be performed again.

[0048] Of all the solutions mentioned above, those involving the connection between two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other known connection methods, which will not be elaborated here. For all the fixed connections mentioned above, welding is preferred. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.

Claims

1. A high-efficiency pulverizing nozzle structure for an airflow pulverizer, comprising a main body (1), characterized in that: The main body (1) is provided with exhaust holes (2), and multiple sets of exhaust holes (2) are provided. The main body (1) is provided with an adjustment mechanism, which includes a connecting sleeve (3), a rotating sleeve (4), a mating sleeve (5), a screw (6), a connecting plate (7), a control sleeve (8), a sealing sleeve (9), a through groove (10), and a positioning mechanism. The connecting sleeve (3) is fixed to the top of the main body (1), the rotating sleeve (4) is rotatably installed on the top of the connecting sleeve (3), the mating sleeve (5) is fixed inside the rotating sleeve (4), the screw (6) is threaded into the mating sleeve (5), the connecting plate (7) is fixed to the bottom of the screw (6), the control sleeve (8) is fixed to the top surface of the connecting plate (7), and the sealing sleeve (9) is fixed to the top surface of the connecting plate (7). The sleeve (9) is fixed to the inner wall of the connecting sleeve (3) and slidably connected to the control sleeve (8). The through groove (10) is provided with multiple sets distributed on the outer wall of the control sleeve (8). The positioning mechanism includes the mounting sleeve (11), the limiting block (12), the limiting groove (13), the reset spring (14), and the limiting sleeve (15). The mounting sleeve (11) is fixed to the bottom surface of the rotating sleeve (4). The limiting block (12) is provided with multiple sets that slide on the outer wall of the mounting sleeve (11). The limiting groove (13) is provided with multiple sets that are distributed on the outer wall of the connecting sleeve (3). The reset spring (14) is installed on the top of the multiple sets of limiting blocks (12) and its bottom end is fixedly connected to the outer wall of the mounting sleeve (11). The limiting sleeve (15) slides on the outer wall of the connecting sleeve (3).

2. The high-efficiency pulverizing nozzle structure of an airflow pulverizer according to claim 1, characterized in that: An unlocking mechanism is provided on the outside of the connecting sleeve (3). The unlocking mechanism includes a support rod (16), a limiting block (17), a rotating sleeve (18), a limiting groove (19), and a clearance groove (20). The support rod (16) is provided in multiple sets distributed on the bottom surface of the limiting sleeve (15). The limiting block (17) is fixed to the bottom end of the multiple sets of support rods (16). The rotating sleeve (18) rotates on the outer wall of the connecting sleeve (3). The limiting groove (19) is provided in multiple sets distributed on the top surface of the rotating sleeve (4). The clearance groove (20) is provided at one end of the multiple sets of limiting grooves (19).

3. The high-efficiency pulverizing nozzle structure of an airflow pulverizer according to claim 2, characterized in that: The top surface of the connecting plate (7) is provided with guide rods (21), and multiple sets of guide rods (21) are provided, all of which are slidably connected to the cover (9).

4. The high-efficiency pulverizing nozzle structure of an airflow pulverizer according to claim 3, characterized in that: The top of the rotating sleeve (4) is connected to an outer pipe (22).

5. The high-efficiency pulverizing nozzle structure of an airflow pulverizer according to claim 4, characterized in that: Both ends of the multiple sets of limiting blocks (12) are set to be arc-shaped.

6. The high-efficiency pulverizing nozzle structure of an airflow pulverizer according to claim 5, characterized in that: The inner side of the limiting sleeve (15) is provided with rounded corners.

7. The high-efficiency pulverizing nozzle structure of an airflow pulverizer according to claim 6, characterized in that: The rotating sleeve (4) has an annular groove (23) on its top surface. An arc-shaped slider (24) is slidably arranged in the annular groove (23). Multiple sets of arc-shaped sliders (24) are provided, and each set has a connecting ring (25) fixed at its top. A tension spring (26) is connected between the top surface of the multiple sets of connecting rings (25) and the bottom surface of the limiting sleeve (15).

8. The high-efficiency pulverizing nozzle structure of an airflow pulverizer according to claim 7, characterized in that: The inner side of the limiting sleeve (15) is provided with guide blocks (27), and there are multiple sets of guide blocks (27). The outer wall of the connecting sleeve (3) is provided with guide grooves (28), and there are multiple sets of guide grooves (28) that are slidably connected to multiple sets of guide blocks (27).

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