A new type of jet mill nozzle

Abstract

The utility model discloses a novel airflow mill nozzle relates to airflow crushing field. The novel airflow mill nozzle, including nozzle entrance part and nozzle outlet part, the outside of nozzle entrance part is provided with fixed sleeve, and the nozzle outlet part swing setting is in the front end of nozzle entrance part, and the installation of four fluorine sealing ring between both, the front end of fixed sleeve is installed with fixed lid, and the nozzle outlet part is anchored in the front end of nozzle entrance part through fixed lid. The novel airflow mill nozzle, will fixed sleeve activity sleeve and be connected in the outer surface of nozzle entrance part, and utilize the assembly flange and fix fixed sleeve on compressed air pipeline, and the nozzle outlet part is inserted from the front end of fixed sleeve, and is installed with the thread of wrapping sleeve through the screw penetration fixed lid, and the nozzle outlet part is fixed in the front end of nozzle entrance part in this way, thereby in the use process, when the nozzle outlet part wears, can remove it and replace with the fixed lid removal, reduce replacement cost and difficulty.

Description

Technical Field

[0001] This utility model relates to the field of airflow pulverization technology, specifically a novel airflow mill nozzle. Background Technology

[0002] Existing air jet mill nozzles are mostly located in the grinding chamber of the air jet mill, with four nozzles installed opposite each other. Utilizing the Venturi principle, the nozzles drive the material to be crushed to blow against each other, and the crushing purpose is achieved by the material colliding and rubbing against each other.

[0003] However, existing air jet mill nozzles mostly use a straight taper, which leads to rapid nozzle wear, unstable airflow, high energy consumption, and low grinding efficiency. Nozzle wear is mainly concentrated at the airflow outlet at the nozzle tip. In addition, since the current nozzles are integrally formed, the internal grinding process is complex, which makes the cost of replacing the whole nozzle high. Therefore, a new type of air jet mill nozzle is provided. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a novel airflow mill nozzle, which solves the problems of existing airflow mill nozzles, which mostly use straight tapers, resulting in rapid nozzle wear, unstable airflow, high energy consumption, and low pulverization efficiency. Furthermore, nozzle wear is mainly concentrated at the airflow outlet at the nozzle tip. In addition, since current nozzles are integrally formed structures with complex internal grinding processes, the overall replacement cost is high.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A novel airflow mill nozzle includes a nozzle inlet and a nozzle outlet. A fixed sleeve is provided outside the nozzle inlet, and the nozzle outlet is movably disposed at the front end of the nozzle inlet, with a PTFE sealing ring installed between them. A fixed cap is installed at the front end of the fixed sleeve, anchoring the nozzle outlet to the front end of the nozzle inlet through the fixed cap. An inlet air duct and a throat air duct are provided inside the nozzle inlet, and an outlet air duct is provided in the nozzle outlet. The inlet air duct, throat air duct, and outlet air duct form a three-section airflow channel, with the taper of the three sections decreasing progressively.

[0006] Preferably, the fixed sleeve includes a wrapping sleeve and an assembly flange integrally formed at the end of the wrapping sleeve, and the nozzle inlet is movably inserted into the wrapping sleeve.

[0007] Preferably, the nozzle inlet end is integrally formed with an anti-detachment ring, and the assembly flange has a placement position adapted to the anti-detachment ring inside.

[0008] Preferably, a sealing connection groove is provided at the front end of the nozzle inlet, and a sealing ring is integrally formed at the end of the nozzle outlet. Both the PTFE sealing ring and the sealing ring are installed in the sealing connection groove.

[0009] Preferably, the front end of the sealing ring is integrally formed with an embedded part, the embedded part penetrates the sealing ring, and the embedded part fits against the inner wall of the pharyngeal airway.

[0010] Preferably, the fixing cap is fixed to the end face of the wrapping sleeve by screws.

[0011] Preferably, the outer wall of the package is fixedly welded with multiple locking posts, and the side of the fixing cover is provided with an anti-detachment groove. The fixing cover is inserted into the front end of the package and then screwed on so that the locking posts enter the depth of the anti-detachment groove to prevent the fixing cover from retracting.

[0012] Its beneficial effects are as follows:

[0013] 1. This novel airflow mill nozzle has a fixed sleeve movably fitted onto the outer surface of the nozzle inlet. The fixed sleeve is then fixed to the compressed air pipeline using an assembly flange. The nozzle outlet is then inserted from the front end of the fixed sleeve, allowing the sealing ring to enter the sealing connection groove and abut against the PTFE sealing ring. At this point, the embedded part penetrates the PTFE sealing ring and is inserted into the throat air duct. Screws are threaded through the fixed cover and the sleeve to fix the nozzle outlet to the front end of the nozzle inlet. Thus, during use, when the nozzle outlet wears out, the fixed cover can be removed for replacement, reducing replacement costs and difficulty.

[0014] 2. In use, the new type of airflow mill nozzle allows air to enter the inlet duct through a compressed air pipe, then enter the outlet duct through the throat duct, and finally be discharged outwards. This utilizes the inlet duct, throat duct, and outlet duct to form a three-section airflow channel, and the taper of the three sections decreases progressively, so that the convergence taper of the airflow gradually decreases, thereby making the ejected airflow more stable. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the overall outer surface structure of this utility model;

[0017] Figure 2 This is a cross-sectional view of the overall internal structure of this utility model;

[0018] Figure 3 This is an exploded cross-sectional view of the overall internal structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the outer surface structure of the nozzle outlet of this utility model.

[0020] In the diagram: 1. Fixed sleeve; 11. Wrapping sleeve; 12. Fixed cover; 13. Assembly flange; 14. Locking post; 15. Anti-detachment groove; 2. Nozzle outlet; 22. Outlet duct; 23. Sealing ring; 24. Embedded part; 3. Nozzle inlet; 32. Inlet duct; 33. Throat duct; 34. Sealing connection groove; 35. PTFE sealing ring; 36. Anti-detachment ring. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments of this utility model are described clearly and completely. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0022] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0023] This utility model discloses a novel airflow mill nozzle, according to the attached... Figure 1-4 As shown, the nozzle includes a nozzle inlet 3 and a nozzle outlet 2. A fixing sleeve 1 is provided on the outside of the nozzle inlet 3. The nozzle outlet 2 is movably disposed at the front end of the nozzle inlet 3, and a PTFE sealing ring 35 is installed between the two. A fixing cover 12 is installed at the front end of the fixing sleeve 1, and the nozzle outlet 2 is anchored to the front end of the nozzle inlet 3 by the fixing cover 12. An inlet air duct 32 and a throat air duct 33 are provided inside the nozzle inlet 3. An outlet air duct 22 is provided in the nozzle outlet 2. The inlet air duct 32, the throat air duct 33 and the outlet air duct 22 form a three-section airflow channel, and the taper of the three-section airflow channel decreases progressively.

[0024] The fixed sleeve 1 includes a wrapping sleeve 11 and an assembly flange 13 integrally formed at the end of the wrapping sleeve 11. The nozzle inlet 3 is movably inserted into the wrapping sleeve 11. An anti-detachment ring 36 is integrally formed at the end of the nozzle inlet 3. The assembly flange 13 has a placement position adapted to the anti-detachment ring 36 inside, so that the nozzle inlet 3 is effectively fixed inside the wrapping sleeve 11, avoiding air leakage caused by the gap between the two.

[0025] A sealing connection groove 34 is provided at the front end of the nozzle inlet 3, and a sealing ring 23 is integrally formed at the end of the nozzle outlet 2. Both the PTFE sealing ring 35 and the sealing ring 23 are installed in the sealing connection groove 34. An embedded part 24 is integrally formed at the front end of the sealing ring 23. The embedded part 24 penetrates the sealing ring 23 and fits against the inner wall of the throat air passage 33, thereby improving the sealing performance of the connection.

[0026] The fixing cover 12 is fixed to the end face of the wrapping sleeve 11 by screws, and the fixing cover 12 is used to fix the nozzle outlet 2.

[0027] Multiple locking posts 14 are fixedly welded to the outer wall of the sleeve 11. The side of the fixing cover 12 is provided with an anti-dislodgement groove 15. The fixing cover 12 is inserted into the front end of the sleeve 11 and then screwed on so that the locking posts 14 enter the depth of the anti-dislodgement groove 15 to prevent the fixing cover 12 from moving backward, thus preventing the airflow from generating a reverse thrust on the screw used to install the fixing cover 12 and causing the screw to fall off.

[0028] Working principle: During installation, the device is installed by movably fitting the fixing sleeve 1 onto the outer surface of the nozzle inlet 3, allowing the anti-detachment ring 36 to enter the preset placement position in the assembly flange 13. The fixing sleeve 1 is then fixed to the compressed air pipeline using the assembly flange 13. The nozzle outlet 2 is then inserted from the front end of the fixing sleeve 1, allowing the sealing ring 23 to enter the sealing connection groove 34 and abut against the PTFE sealing ring 35. At this time, the embedded part 24 penetrates the PTFE sealing ring 35 and is inserted into the throat air duct 33. The anti-detachment groove 15 on the fixing cover 12 is then inserted into the locking post 14, and the fixing cover 12 is then screwed down, allowing the locking post 14 to enter the depth of the anti-detachment groove 15. Finally, the screw is threaded through the fixing cover 12 and the wrapping sleeve 11 to fix the nozzle outlet 2 to the front end of the nozzle inlet 3. Thus, during use, when the nozzle outlet 2 wears, the fixing cover 12 can be removed for replacement, reducing replacement costs and difficulty.

[0029] In use, air enters the inlet duct 32 through the compressed air pipe, then enters the outlet duct 22 through the throat duct 33 and is discharged outward. In this way, the inlet duct 32, throat duct 33 and outlet duct 22 form a three-section airflow channel, and the taper of the three-section airflow channel decreases, so that the convergence taper of the airflow gradually decreases, thereby making the ejected airflow more stable.

[0030] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0031] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A novel airflow mill nozzle, characterized in that, The nozzle includes a nozzle inlet (3) and a nozzle outlet (2). A fixed sleeve (1) is provided on the outside of the nozzle inlet (3). The nozzle outlet (2) is movably disposed at the front end of the nozzle inlet (3), and a PTFE sealing ring (35) is installed between the two. A fixed cover (12) is installed at the front end of the fixed sleeve (1). The nozzle outlet (2) is anchored to the front end of the nozzle inlet (3) by the fixed cover (12). An inlet air duct (32) and a throat air duct (33) are provided inside the nozzle inlet (3). An outlet air duct (22) is provided in the nozzle outlet (2). The inlet air duct (32), the throat air duct (33) and the outlet air duct (22) form a three-section airflow channel, and the taper of the three-section airflow channel decreases progressively.

2. The novel airflow mill nozzle according to claim 1, characterized in that, The fixed sleeve (1) includes a wrapping sleeve (11) and an assembly flange (13) integrally formed at the end of the wrapping sleeve (11), and the nozzle inlet (3) is movably inserted into the wrapping sleeve (11).

3. A novel airflow mill nozzle according to claim 2, characterized in that, The nozzle inlet (3) has an integrally formed anti-detachment ring (36) at its end, and the assembly flange (13) has a placement position adapted to the anti-detachment ring (36) inside.

4. The novel airflow mill nozzle according to claim 1, characterized in that, The nozzle inlet (3) has a sealing connection groove (34) at its front end, and the nozzle outlet (2) has a sealing ring (23) integrally formed at its end. The PTFE sealing ring (35) and the sealing ring (23) are both installed in the sealing connection groove (34).

5. A novel airflow mill nozzle according to claim 4, characterized in that, The front end of the sealing ring (23) is integrally formed with an embedded part (24), which penetrates the sealing ring (23) and fits against the inner wall of the pharyngeal airway (33).

6. A novel airflow mill nozzle according to claim 2, characterized in that, The fixing cover (12) is fixed to the end face of the wrapping sleeve (11) by screws.

7. A novel airflow mill nozzle according to claim 6, characterized in that, The outer wall of the package sleeve (11) is fixedly welded with multiple locking posts (14), and the side of the fixing cover (12) is provided with an anti-detachment groove (15). The fixing cover (12) is inserted into the front end of the package sleeve (11) and then screwed so that the locking posts (14) enter the depth of the anti-detachment groove (15) to prevent the fixing cover (12) from retracting.

Images