Sealed jet mill

Abstract

The utility model provides a sealed jet mill, and relates to the technical field of milling devices. An upper crushing barrel body is mounted at the top of the lower crushing barrel body; a feeding pipe is arranged on the right side of the upper crushing barrel body, and a feeding pipe cover is mounted at the right end of the feeding pipe through threads; two high-pressure air pipes are arranged on the left side and the right side of the lower crushing barrel body; a discharging pipe is further arranged in the middle of the top of the upper smashing barrel body. A flow guide baffle plate is fixed on the inner side of the bottom of the lower crushing barrel body; a rotating shaft is rotationally mounted on the flow guide baffle; a group of fan blades are fixed on the outer side of the rotating shaft; six cleaning rods are further fixed at the top end of the rotating shaft; and a filter screen is fixed on the inner side of the top of the upper crushing barrel body. According to the pulverizer, the pulverizing efficiency can be improved, raw materials clamped on the filter screen can be automatically cleaned, and the situation that pulverizing is not thorough is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of pulverizing devices, in particular to a sealed airflow pulverizer. Background Art

[0002] Airflow mills are capable of ultra-fine grinding various professional materials. They are particularly suitable for materials that are relatively hard or have relatively fine feed particle sizes, as well as high-purity materials that require no pollution. Airflow mills are usually used in the preparation of copper hydroxide.

[0003] The air flow mills currently used all rely on the airflow to drive the raw materials to collide and achieve crushing when crushing raw materials. However, the raw materials in some positions may be difficult to collide with each other, so the crushing efficiency will be low if it only relies on the collision of raw materials. In addition, the crushed raw materials are usually screened through a filter. However, because the air flow intensity inside the crusher is relatively high during crushing, some large pieces of raw materials may be stuck on the outside of the filter, and cannot be manually cleaned during operation, which easily leads to incomplete crushing. Summary of the Invention

[0004] The utility model provides a sealed airflow pulverizer, which can improve the pulverization efficiency, and the raw materials stuck on the filter screen can be automatically cleaned, thereby avoiding the situation of incomplete pulverization.

[0005] In a first aspect of the present disclosure, a sealed airflow pulverizer is provided, specifically comprising: a lower pulverizing barrel;

[0006] An upper crushing barrel is installed on the top of the lower crushing barrel; a feeding pipe is provided on the right side of the upper crushing barrel, and a feeding pipe cover is installed on the right end of the feeding pipe through a thread; two high-pressure air pipes are provided on the left and right sides of the lower crushing barrel; a discharge pipe is also provided in the middle position of the top of the upper crushing barrel; a guide baffle is fixed on the inner side of the bottom of the lower crushing barrel; a rotating shaft is rotatably installed on the guide baffle; a group of fan blades are fixed on the outside of the rotating shaft; six cleaning rods are also fixed on the top of the rotating shaft; a filter screen is fixed on the inner side of the top of the upper crushing barrel.

[0007] In at least some embodiments, the filter screen is a hemispherical mesh plate, and is located in the middle of the top inner wall of the upper crushing barrel, and the discharge pipe is connected to the cavity inside the filter screen.

[0008] In at least some embodiments, the guide baffle is an I-shaped plate, and an opening is provided between the front and rear sides of the guide baffle and the inner wall of the lower crushing barrel.

[0009] In at least some embodiments, the cleaning rods are smooth arc-shaped rods, and when the device is fully assembled, the cleaning rods will contact the outer wall of the filter screen.

[0010] In at least some embodiments, a plurality of cylindrical protrusions are fixed to both the left and right sides of the guide baffle, and the cylindrical protrusions are staggered up and down.

[0011] In at least some embodiments, one end of the high-pressure air pipe located on the inner side of the lower crushing barrel is inclined downward, and the two high-pressure air pipes are respectively located on the left and right sides of the guide baffle.

[0012] In at least some embodiments, a cylindrical groove with an open top is provided in the middle of the guide baffle, and the inner diameter of the cylindrical groove is 2 mm larger than the outer diameter of the rotating shaft.

[0013] The utility model provides a sealed airflow pulverizer, which has the following beneficial effects:

[0014] The guide baffle in the utility model can guide the airflow and the raw materials in the grinder, and when guiding the raw materials, the raw materials will also collide with the protrusions on the guide baffle to be crushed, and the cleaning rod will be driven to rotate by the fan blades during the rising process of the airflow, thereby cleaning the large pieces of raw materials stuck on the outside of the filter screen, without the need for manual cleaning. The grinder can improve the crushing efficiency, and the raw materials stuck on the filter screen can be automatically cleaned to avoid incomplete crushing. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings of the embodiments will be briefly introduced below.

[0016] The drawings described below only relate to some embodiments of the present invention, but are not intended to limit the present invention.

[0017] In the attached figure:

[0018] Figure 1 A schematic diagram showing the main shaft side of the overall structure of the present application is shown;

[0019] Figure 2 Shows a schematic diagram of the main shaft side after cutting of the present application;

[0020] Figure 3 A schematic diagram of the upper crushing barrel body in the present application from the upward axis side is shown;

[0021] Figure 4 A schematic diagram of the axial side view of the lower crushing barrel in the present application is shown;

[0022] Figure 5 A schematic diagram of the left axial side of the guide baffle in this application is shown;

[0023] Figure 6 The schematic diagram of the structure of the rotating shaft, fan blades and cleaning rod in this application is shown;

[0024] Reference Signs List

[0025] 1. Lower crushing barrel; 2. Upper crushing barrel; 3. Feeding pipe; 4. Feeding pipe cover; 5. High-pressure air pipe; 6. Discharge pipe; 7. Guide baffle; 8. Rotating shaft; 9. Fan blade; 10. Cleaning rod; 11. Filter screen. DETAILED DESCRIPTION

[0026] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the described embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] Example 1: Please refer to Figures 1 to 6 :

[0028] The utility model proposes a sealed airflow pulverizer, comprising: a lower pulverizing barrel 1;

[0029] An upper crushing barrel body 2 is installed on the top of the lower crushing barrel body 1. The lower crushing barrel body 1 is used to support the high-pressure air pipe 5 and the guide baffle 7. The upper crushing barrel body 2 is used to support the feeding pipe 3, the discharge pipe 6 and the filter screen 11. After the lower crushing barrel body 1 and the upper crushing barrel body 2 are assembled, they can form a sealed airflow crushing cavity; a feeding pipe 3 is provided on the right side of the upper crushing barrel body 2, and a feeding pipe cover 4 is installed on the right end of the feeding pipe 3 through a thread. The feeding pipe 3 is used to add raw materials into the interior of the device. The feeding pipe cover 4 is used to seal the opening at the right end of the feeding tube 3. When in use, the feeding tube cover 4 can be unscrewed and the raw materials to be crushed can be poured into the cavities inside the lower crushing barrel 1 and the upper crushing barrel 2 through the feeding tube 3; two high-pressure air pipes 5 are provided on the left and right sides of the lower crushing barrel 1. The high-pressure air pipes 5 are used to introduce high-pressure air into the interior of the device, so that the raw materials can collide with each other and drive the raw materials to move; a discharge pipe 6 is also provided in the middle of the top of the upper crushing barrel 2. The discharge pipe 6 is used to discharge the air inside the device and The crushed materials are discharged outwards; a guide baffle 7 is fixed to the inner side of the bottom of the lower crushing barrel 1, which is used to support the rotating shaft 8 in rotation, and the guide baffle 7 can also guide the airflow and raw materials; a rotating shaft 8 is rotatably installed on the guide baffle 7, and the rotating shaft 8 is used to support the fan blades 9 and the cleaning rod 10; a group of fan blades 9 are fixed to the outside of the rotating shaft 8, and when the airflow rises, the fan blades 9 will drive the rotating shaft 8 and the cleaning rod 10 to rotate synchronously; six cleaning rods 10 are also fixed to the top of the rotating shaft 8, and the airflow When rising, the fan blades 9 will be blown to drive the rotating shaft 8 and the cleaning rod 10 to rotate synchronously. The cleaning rod 10 can continuously rub the outer wall of the filter screen 11, so even if large particles of raw materials are stuck on the surface of the filter screen 11, they can be automatically cleaned and dropped; a filter screen 11 is fixed on the inner side of the top of the upper crushing barrel 2. When the raw materials rise to the top with the air flow, they can contact the filter screen 11, and then small particles that meet the size will pass through the circular holes on the filter screen 11 and be discharged outward, while large particles of raw materials will fall and continue to be crushed.

[0030] In the embodiment of the present disclosure, Figure 2 and Figure 3 As shown, the filter screen 11 is a hemispherical mesh plate, and is located in the middle position of the inner wall of the top of the upper crushing barrel 2. The discharge pipe 6 is connected to the cavity inside the filter screen 11. When the air flow rises, it will blow the fan blades 9 to drive the rotating shaft 8 and the cleaning rod 10 to rotate synchronously. The cleaning rod 10 can continuously rub the outer wall of the filter screen 11, so even if large particles of raw materials are stuck on the surface of the filter screen 11, they can be automatically cleaned and dropped.

[0031] In the embodiment of the present disclosure, Figure 4 and Figure 5As shown, the guide baffle 7 is an I-shaped plate, and an opening is provided between the front and rear sides of the guide baffle 7 and the inner wall of the lower crushing barrel 1. When in use, the external air pipe can be connected to the two high-pressure air pipes 5 and high-pressure air can be introduced. At this time, the high-pressure air will be directly sprayed onto the bottom inner wall of the lower crushing barrel 1 through the high-pressure air pipe 5, and then the high-pressure air will carry the raw materials and flow upward along the openings on the left and right sides of the guide baffle 7, so as to facilitate the diversion of the raw materials.

[0032] In the embodiment of the present disclosure, Figure 2 and Figure 6 As shown, the cleaning rods 10 are all smooth arc-shaped rods, and after the device is fully assembled, the cleaning rods 10 will contact the outer wall of the filter screen 11. When the airflow rises, it will blow the fan blades 9 to drive the rotating shaft 8 and the cleaning rods 10 to rotate synchronously. The cleaning rods 10 can continuously rub the outer wall of the filter screen 11, so even if large particles of raw materials are stuck on the surface of the filter screen 11, they can be automatically cleaned and dropped.

[0033] In the embodiment of the present disclosure, Figure 5 As shown, a number of cylindrical protrusions are fixed on both sides of the guide baffle 7, and the cylindrical protrusions are staggered up and down. When in use, high-pressure air will carry the raw materials and flow upward along the openings on the left and right sides of the guide baffle 7. In this process, the raw materials will collide with the cylindrical protrusions on the left and right sides of the guide baffle 7, thereby accelerating the crushing speed. Moreover, because the cylindrical protrusions are staggered, the crushing effect can be further improved.

[0034] In the embodiment of the present disclosure, Figure 2 、 Figure 4 and Figure 5 As shown, a cylindrical groove with an open top is provided in the middle position of the guide baffle 7, and the inner diameter of the cylindrical groove is 2 mm larger than the outer diameter of the rotating shaft 8, so the rotating shaft 8 can rotate in the cylindrical groove in the middle of the guide baffle 7. When the air flow rises, it will blow the fan blades 9 to drive the rotating shaft 8 and the cleaning rod 10 to rotate synchronously, and the cleaning rod 10 can continuously rub the outer wall of the filter screen 11.

[0035] Example 2, based on Example 1, Figures 1-6 As shown, one end of the high-pressure air pipe 5 located on the inner side of the lower crushing barrel body 1 is tilted downward, and the two high-pressure air pipes 5 are respectively located on the left and right sides of the guide baffle 7. When in use, the external air pipe can be connected to the two high-pressure air pipes 5 and high-pressure air can be introduced. At this time, the high-pressure air will be directly sprayed onto the bottom inner wall of the lower crushing barrel body 1 through the high-pressure air pipe 5. Because the raw materials are also on the inner side of the bottom of the lower crushing barrel body 1 at this time, the high-pressure air can cause the raw materials to collide with each other and crush them, and then the high-pressure air will carry the raw materials to flow upward along the openings on the left and right sides of the guide baffle 7.

[0036] The working principle of this embodiment is as follows: when assembling this device, first insert the bottom end of the rotating shaft 8 into the cylindrical groove in the middle of the guide baffle 7, so that the fan blade 8 and the cleaning rod 10 can be rotated and installed, and then the upper crushing barrel body 2 is installed on the top of the lower crushing barrel body 1 and fastened together with bolts and nuts. At this time, the feeding pipe cover 4 can be unscrewed and the raw materials to be crushed can be poured into the cavity inside the lower crushing barrel body 1 and the upper crushing barrel body 2 through the feeding pipe 3, and then the feeding pipe cover 4 is tightened again, and then the external air pipe is connected to the two high-pressure air pipes 5 and high-pressure air is introduced. At this time, the high-pressure air will be directly sprayed onto the bottom inner wall of the lower crushing barrel body 1 through the high-pressure air pipe 5. Because the raw materials are also on the inner side of the bottom of the lower crushing barrel body 1 at this time, the high-pressure air can cause the raw materials to collide with each other and crush them. Then the high-pressure air will carry the raw materials and flow upward along the openings on the left and right sides of the guide baffle 7. In this process The raw materials will collide with the cylindrical protrusions on the left and right sides of the guide baffle 7, thereby accelerating the crushing speed. Moreover, because the cylindrical protrusions are staggered, the crushing effect can be further improved. Finally, the air will be discharged outward through the discharge pipe 6. In this process, part of the raw materials will also rise to the top with the air flow and contact the filter screen 11. Then, small particles that meet the size will pass through the circular holes on the filter screen 11 and be discharged outward, while large particles of raw materials will fall down and continue to be crushed. Moreover, when the air flow rises, it will blow the fan blades 9 to drive the rotating shaft 8 and the cleaning rod 10 to rotate synchronously. The cleaning rod 10 can continuously rub the outer wall of the filter screen 11, so even if large particles of raw materials are stuck on the surface of the filter screen 11, they can be automatically cleaned and dropped. After the crushing is completed, the lower crushing barrel 1 and the upper crushing barrel 2 can be disassembled first, and then the rotating shaft 8 can be pulled out and disassembled upward, so that the inside of the device can be easily cleaned.

[0037] In this article, there are several points to note:

[0038] 1. The drawings of the embodiments of the present disclosure only relate to the structures related to the embodiments of the present disclosure. Other structures may refer to conventional designs.

[0039] 2. In the absence of conflict, the embodiments of the present disclosure and the features therein may be combined with each other to form new embodiments.

[0040] The above are only specific embodiments of the present disclosure, but the scope of protection of the present disclosure is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this disclosure should be included in the scope of protection of the present disclosure. Therefore, the scope of protection of the present disclosure should be based on the scope of protection of the claims.

Claims

1. A sealed airflow pulverizer, comprising: The lower crushing barrel (1) is characterized by: An upper crushing barrel (2) is installed on the top of the lower crushing barrel (1); a feeding pipe (3) is provided on the right side of the upper crushing barrel (2), and a feeding pipe cover (4) is installed on the right end of the feeding pipe (3) through a thread; two high-pressure air pipes (5) are provided on the left and right sides of the lower crushing barrel (1); a discharge pipe (6) is also provided at the middle position of the top of the upper crushing barrel (2); a guide baffle (7) is fixed on the inner side of the bottom of the lower crushing barrel (1); a rotating shaft (8) is rotatably installed on the guide baffle (7); a group of fan blades (9) are fixed on the outer side of the rotating shaft (8); six cleaning rods (10) are also fixed on the top of the rotating shaft (8); a filter screen (11) is fixed on the inner side of the top of the upper crushing barrel (2).

2. A sealed airflow pulverizer according to claim 1, characterized in that: The guide baffle (7) is an I-shaped plate, and an opening is provided between the front and rear sides of the guide baffle (7) and the inner wall of the lower crushing barrel (1).

3. The sealed airflow pulverizer according to claim 1, characterized in that: A plurality of cylindrical protrusions are fixed on both the left and right sides of the guide baffle (7), and the cylindrical protrusions are staggered up and down.

4. The sealed airflow pulverizer according to claim 1, characterized in that: A cylindrical groove with an open top is provided in the middle of the guide baffle (7), and the inner diameter of the cylindrical groove is 2 mm larger than the outer diameter of the rotating shaft (8).

5. The sealed airflow pulverizer according to claim 1, characterized in that: The filter screen (11) is a hemispherical mesh plate and is located in the middle of the top inner wall of the upper crushing barrel (2). The discharge pipe (6) is connected to the cavity inside the filter screen (11).

6. The sealed airflow pulverizer according to claim 1, characterized in that: The cleaning rods (10) are all smooth arc-shaped rods, and after the device is fully assembled, the cleaning rods (10) will contact the outer wall of the filter screen (11).

7. The sealed airflow pulverizer according to claim 1, characterized in that: One end of the high-pressure air pipe (5) located inside the lower crushing barrel (1) is tilted downward, and the two high-pressure air pipes (5) are respectively located on the left and right sides of the guide baffle (7).

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