Improved structure of jet mill

Abstract

The improved structure comprises a shell, a partition plate is arranged in the middle of the shell, a cyclone separation device is arranged on the upper portion of the shell, and an airflow smashing device is arranged below the shell. A plurality of penetrating holes are formed in the partition plate, and a plurality of rotating circulating air openings are formed in the positions, located on the two sides below the partition plate, of the shell. The circulating air opening comprises a rotating groove formed in the inner wall of the shell, an annular piece is arranged in the rotating groove, a plurality of pushing pieces are arranged on the annular piece towards the inner wall of the rotating groove, a plurality of air holes are formed in the annular piece towards the interior of the shell, and a plurality of air pipes are obliquely arranged on the shell. The improved structure of the jet mill has the following advantages and effects that through the improved structure of the jet mill, jet milling and a cyclone separator can be directly combined, qualified materials after impact are guided to the next working procedure, and the influence of middle connecting pipelines and the like on the working efficiency is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of air flow mills, in particular to an improved structure of an air flow mill. Background Art

[0002] The jet mill is a complete pulverizing system consisting of a jet pulverizer, a cyclone separator, a dust collector and an induced draft fan.

[0003] Conventional air flow mills and cyclone separators are set on two devices. After the air flow crushes the material, the material needs to be transported to the cyclone separator to screen the crushed and uncrushed materials, and the materials with qualified particle size are transported to the next process, and the unqualified materials are sent back to the air flow mill for crushing. This process affects the work efficiency. Utility Model Content

[0004] The utility model aims to provide an improved structure of a jet mill.

[0005] The above-mentioned technical purpose of the utility model is achieved through the following technical solutions: an improved structure of an air flow mill, including a shell, a partition plate is arranged in the middle of the shell, a cyclone separation device is arranged on the upper part of the shell, and an air flow crushing device is arranged below the shell; a plurality of perforations are arranged on the partition plate, and a plurality of rotating circulation air outlets are arranged on both sides of the shell below the partition plate; the circulating air outlet includes a rotating groove arranged on the inner wall of the shell, a ring-shaped part is arranged in the rotating groove, a plurality of push plates are arranged on the ring-shaped part toward the inner wall of the rotating groove, a plurality of air holes are arranged on the ring-shaped part toward the inside of the shell, and a plurality of air pipes are arranged obliquely on the shell.

[0006] It is further configured as follows: the rotating groove and the annular member are C-shaped, and the rotating groove is covered on the annular member.

[0007] It is further configured as follows: the air pipe is arranged obliquely, and the air holes on the annular member are arranged along the oblique direction of the air pipe.

[0008] It is further configured as follows: the push piece is arranged to extend obliquely relative to a vertical line of the annular member, and an arc portion is arranged in the middle of the push piece.

[0009] In summary, the utility model has the following beneficial effects: through the improved structure of the air flow mill, it can directly combine air flow crushing and cyclone separator to guide qualified materials after impact to the next process, reducing the influence of intermediate connecting pipes on work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a schematic diagram of the improved structure of the air flow mill;

[0011] Figure 2 for Figure 1 Enlarged view of point A in the middle.

[0012] In the figure: 1, shell; 2, partition plate; 3, cyclone separation device; 4, air flow crushing device; 5, perforation; 6, rotating groove; 7, ring member; 8, push plate; 9, air hole; 10, air pipe; 11, arc portion. DETAILED DESCRIPTION

[0013] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0014] The improved structure of the air flow mill comprises a shell 1, a partition plate 2 is arranged in the middle of the shell 1, and a plurality of through holes 5 are arranged in the partition plate 2.

[0015] The shell 1 is provided with an air flow crushing device 4 below the partition plate 2, including air flow acceleration devices on both sides, which accelerate the material and then impact it. A feed port is provided on one side of the shell 1 below the partition plate 2.

[0016] A cyclone separation device 3 is provided on the housing 1 above the partition plate 2 for sending the material passing through the perforations 5 to the next process.

[0017] Among them, the housing 1 is provided with a number of rotating circulation seals on both sides below the partition plate 2, and the overall structure of the circulation air outlet includes a C-shaped rotating groove 6 provided on the inner wall of the housing 1, and a ring member 7 of the same C shape but covered by the rotating groove 6 is embedded in the rotating groove 6, and a push piece 8 is provided on the ring member 7 facing the rotating groove 6. The ring member 7 is provided with a number of air holes 9 facing the inside of the housing 1, and a number of air pipes 10 are obliquely provided on the housing 1, and the air pipes 10 are connected to the air inlet.

[0018] When a certain pressure of gas is introduced into the air pipe 10, the gas can impact the push sheet 8, thereby achieving the purpose of the ring member 7 moving in the rotating groove 6. The excess gas can escape from the air hole 9 and lift the material upward.

[0019] Preferably, the air holes 9 are arranged obliquely, so that the materials that have been impacted and meet the particle size can be lifted upward, and in the process of rotating with the wind direction, they enter the cyclone separation device 3 upward from the perforations 5 of the partition plate 2 and enter the next process.

[0020] The push piece 8 is extended obliquely relative to the vertical line of the ring member 7, and an arc portion 11 is provided in the middle of the push piece 8, which can maximize the inward wind force to lift the material during the process of pushing the ring member 7.

[0021] Preferably, one end of the push piece 8 facing the inside of the housing 1 abuts against the air hole 9, which can further ensure the smoothness of the air flow.

[0022] Among them, since the material particles entering the upper part of the partition plate 2 are screened through the perforations 5 on the partition plate 2, the device for screening the particle size in the cyclone separation device 3 can be removed to avoid affecting the normal transportation of qualified particulate materials.

[0023] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.

Claims

1. The improved structure of the air jet mill is characterized by: It includes a shell, a partition plate is arranged in the middle of the shell, a cyclone separation device is arranged on the upper part of the shell, and an air flow crushing device is arranged below the shell; a plurality of perforations are arranged on the partition plate, and a plurality of rotating circulation air outlets are arranged on both sides of the shell below the partition plate; the circulation air outlet includes a rotating groove arranged on the inner wall of the shell, a ring-shaped part is arranged in the rotating groove, a plurality of push plates are arranged on the ring-shaped part toward the inner wall of the rotating groove, a plurality of air holes are arranged on the ring-shaped part toward the inside of the shell, and a plurality of air pipes are arranged obliquely on the shell.

2. The improved structure of the jet mill according to claim 1 is characterized in that: The rotating groove and the annular member are C-shaped, and the rotating groove is covered on the annular member.

3. The improved structure of the jet mill according to claim 1 is characterized in that: The air pipe is arranged obliquely, and the air holes on the annular member are arranged along the oblique direction of the air pipe.

4. The improved structure of the jet mill according to claim 1 is characterized in that: The push piece is arranged to extend obliquely relative to the vertical line of the annular member, and an arc portion is arranged in the middle of the push piece.

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