Multi-air-inlet structure of powder concentrator

Abstract

The utility model relates to the technical field of powder selecting machines, and discloses a multi-air-inlet structure of a powder selecting machine, which comprises a powder selecting machine main body, and further comprises a plurality of side air inlets circumferentially positioned at the side ends of the powder selecting machine main body, and tangential air inlet is adopted by the side air inlets; the lower air inlet is located in the bottom end of the powder concentrator body, and a lower discharging port of the powder concentrator body is arranged in an inclined mode so as to avoid the lower air inlet. According to the multi-air-inlet structure of the powder concentrator provided by the utility model, two different air inlet modes of vertical lower air inlet of the lower air inlet and tangential air inlet of the side air inlet are combined, so that multiple (point) air inlet in the powder concentrator main body is realized, the air quantity and the air speed in different areas are controlled, an air uniformizing function is realized, and the air quality is improved. The requirements of different working conditions are effectively met, and meanwhile the flexibility and maneuverability of the powder selecting process are facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of powder classifiers, in particular to a multi-air inlet structure of a powder classifier. Background Art

[0002] There are many types of powder classifiers, different types are suitable for different materials, and different models are also made according to the customer's requirements for material fineness. Common powder classifiers include cyclone type cyclone powder classifier, three-separation powder classifier, centrifugal powder classifier, coal mill special powder classifier, calcium powder special powder classifier, etc. Later, many high-efficiency powder classifiers and high-efficiency three-separation powder classifiers were developed. They are new generation varieties that improve deficiencies and increase output on the original basis.

[0003] Chinese patent CN213529637 U discloses an air supply device for a powder selector, comprising a powder selector body, a fine powder outlet is fixedly installed at the lower end of the powder selector body, a coarse powder outlet is fixedly installed on the side of the fine powder outlet, a rotating motor is fixedly installed on the upper end of the powder selector body, a wind material selection pipe is fixedly connected to the side of the upper part of the powder selector body, a cyclone is fixedly connected to the outer end of the wind material selection pipe, a feed port is fixedly installed at the upper end of the middle part of the powder selector body, an air inlet is fixedly installed on the side of the powder selector body below the feed port, and a wind selection fan is fixedly installed on the side of the lower part of the powder selector body. The air supply device of the powder selector can cut off the first air duct to stop the air supply to the left cyclone when the power of the wind selection fan is insufficient, so that the wind flow sent into the remaining cyclones remains constant, avoiding errors in powder selection caused by insufficient wind power, thereby greatly improving the working stability of the powder selector. Due to different working conditions, the air volume and wind speed of the powder classifier also need to be diversified. For example, the one-way air inlet of the above-mentioned utility model cannot meet the demand. Therefore, a multi-air inlet structure of a powder classifier is urgently needed to overcome the above-mentioned technical problems. Utility Model Content

[0004] In order to improve the above problems, the utility model discloses a multi-air inlet structure of a powder classifier, including a powder classifier main body, and also including:

[0005] Side air inlet: multiple side air inlets are circumferentially located at the side end of the powder classifier body, and the side air inlet adopts tangential air inlet;

[0006] The lower air inlet is located at the bottom of the powder classifier body, and the lower discharge port of the powder classifier body is arranged in an inclined manner to avoid the lower air inlet.

[0007] Preferably, the number of side air inlets is 2, and the calibers are different.

[0008] Preferably, a filter assembly is obliquely installed in the lower air inlet, and a side discharge port is opened at the side end of the lower air inlet.

[0009] Preferably, the filter assembly comprises:

[0010] The lower frame is fixedly mounted on the inner wall of the lower air inlet and is located below the side discharge port;

[0011] An upper inclined plate, which is located above the lower frame, is slidably connected to the inner wall of the lower air inlet, a lower end of the upper inclined plate is arranged close to the side discharge port, an opening is provided on the upper inclined plate, and a filter screen is installed on the opening;

[0012] Side baffle, which is installed at the lower end of the upper inclined plate and is used to cover the side discharge port;

[0013] Spring columns, multiple spring columns are connected between the lower frame and the upper inclined plate.

[0014] Preferably, a lever is installed on the side baffle, and the lever is arranged to protrude out of the discharge port.

[0015] Preferably, the upper inclined plate and the lower frame are arranged in parallel.

[0016] Preferably, the side discharge port is arranged away from the lower discharge port of the powder classifier body.

[0017] Preferably, the lower air inlet can supply cold air or hot air.

[0018] Preferably, an air supply valve is installed on the side air inlet.

[0019] Compared with the prior art, the utility model has the following advantages:

[0020] The utility model provides a multi-air inlet structure for a powder classifier, which adopts a combination of two different air inlet modes, namely vertical lower air inlet of a lower air inlet and tangential air inlet of a side air inlet, to achieve air inlet at multiple (points) within the powder classifier body, thereby controlling the air volume and wind speed in different areas, and realizing the wind balancing function, effectively meeting the needs of different working conditions, and facilitating the flexibility and maneuverability of the powder selection process. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 It is a structural schematic diagram of the utility model;

[0023] Figure 2 It is a structural schematic diagram of the filter assembly of the utility model;

[0024] Figure 3 for Figure 2 Enlarged view of the number A.

[0025] In the figure: 10. powder selection machine body; 11. side air inlet; 12. lower air inlet; 13. filter assembly; 14. side discharge port; 15. lower frame; 16. upper inclined plate; 17. filter screen; 18. side baffle; 19. spring column; 20. lever. DETAILED DESCRIPTION

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

[0027] Example

[0028] The utility model will be further described below in conjunction with the accompanying drawings.

[0029] like Figures 1 to 3 As shown, the multi-air inlet structure of a powder selector provided in this embodiment includes a powder selector body 10, and also includes:

[0030] Side air inlets 11, multiple side air inlets 11 are circumferentially located at the side ends of the powder classifier body 10, and the side air inlets 11 adopt tangential air inlet;

[0031] The lower air inlet 12 is located at the bottom of the powder classifier body 10 , and the lower discharge port of the powder classifier body 10 is arranged in an inclined manner to avoid the lower air inlet 12 .

[0032] The working principle and beneficial effects of the above technical solution are:

[0033] The utility model discloses a multi-air inlet structure of a powder selector, wherein the side air inlet 11 located at the side end of the powder selector body 10 can inlet air tangentially from the side end of the powder selector body 10, and the lower air inlet 12 located at the bottom end of the powder selector body 10 can inlet air from the lower end of the powder selector body 10. The multi-air inlet structure of a powder selector provided by the utility model adopts a combination of two different air inlet modes, namely, vertical lower air inlet of the lower air inlet 12 and tangential air inlet of the side air inlet 11, to realize air inlet at multiple (points) in the powder selector body 10, thereby controlling the air volume and wind speed in different areas, and realizing the wind balancing function, effectively meeting the needs of different working conditions, and facilitating the flexibility and maneuverability of the powder selection process.

[0034] In one embodiment, the number of the side air inlets 11 is 2, and the diameters of the side air inlets 11 are different.

[0035] In one embodiment, a filter assembly 13 is obliquely installed in the lower air inlet 12 , and a side discharge port 14 is opened at a side end of the lower air inlet 12 .

[0036] Wherein, the filtering component 13 comprises:

[0037] The lower frame 15 is fixedly mounted on the inner wall of the lower air inlet 12 and is located below the side discharge port 14;

[0038] An upper inclined plate 16, which is located above the lower frame 15, is slidably connected to the inner wall of the lower air inlet 12, and a lower end of the upper inclined plate 16 is disposed near the side discharge port 14. An opening is provided on the upper inclined plate 16, and a filter screen 17 is installed on the opening;

[0039] A side baffle 18, which is installed at the lower end of the upper inclined plate 16, and is used to cover the side discharge port 14;

[0040] Spring columns 19 , a plurality of spring columns 19 are connected between the lower frame 15 and the upper inclined plate 16 .

[0041] The working principle and beneficial effects of the above technical solution are:

[0042] When the powder in the powder selection machine body 10 partially falls into the lower air inlet 12, the powder falls on the filter 17, thereby preventing it from falling out from the lower air inlet 12. As the powder accumulates more and more on the filter 17, affecting the air flow rate, the upper inclined plate 16 is manually pressed. As the upper inclined plate 16 falls on the lower frame 15, the spring column 19 contracts, and the side baffle 18 releases the blockage of the side discharge port 14. Because the upper inclined plate 16 is inclined, and the lower end of the upper inclined plate 16 is close to the side discharge port 14, the powder accumulated on the filter 17 slides out of the side discharge port 14 from the lower end of the upper inclined plate 16.

[0043] When too much powder accumulates on the filter screen 17 and cannot slide out of the side discharge port 14 smoothly, the upper inclined plate 16 is pressed multiple times. As the spring column 19 is reset, the upper inclined plate 16 is vibrated, the fluidity of the powder is improved, and the powder can slide out quickly.

[0044] In one embodiment, a lever 20 is installed on the side baffle 18 , and the lever 20 is arranged to extend out of the discharge port 14 .

[0045] The beneficial effects of the above technical solution are:

[0046] The arrangement of the lever 20 facilitates manual pressing of the upper inclined plate 16 .

[0047] In one embodiment, the upper inclined plate 16 and the lower frame 15 are arranged in parallel.

[0048] In one embodiment, the side discharge port 14 is disposed away from the lower discharge port of the powder classifier body 10 .

[0049] In one embodiment, the lower air inlet 12 can supply cold air or hot air.

[0050] The beneficial effects of the above technical solution are:

[0051] The lower air inlet 12 can supply cold air or hot air, thus achieving heat exchange with the powder.

[0052] In one embodiment, an air supply valve is installed on the side air inlet 11 .

[0053] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention.

Claims

1. A multi-air inlet structure of a powder classifier, comprising a powder classifier body (10), characterized in that: Also includes: Side air inlets (11), a plurality of side air inlets (11) are circumferentially located at the side ends of the powder classifier body (10), and the side air inlets (11) adopt tangential air inlet; The lower air inlet (12) is located at the bottom of the powder selecting machine body (10), and the lower discharge port of the powder selecting machine body (10) is arranged in an inclined manner to avoid the lower air inlet (12).

2. The multi-air inlet structure of a powder classifier according to claim 1, characterized in that: The number of the side air inlets (11) is 2, and the calibers are different.

3. The multi-air inlet structure of a powder classifier according to claim 1, characterized in that: A filter assembly (13) is obliquely installed in the lower air inlet (12), and a side discharge port (14) is provided at a side end of the lower air inlet (12).

4. The multi-air inlet structure of a powder classifier according to claim 3, characterized in that: The filter assembly (13) comprises: a lower frame (15) fixedly mounted on the inner wall of the lower air inlet (12), the lower frame (15) being located below the side discharge port (14), an upper inclined plate (16) being located above the lower frame (15), the upper inclined plate (16) being slidably connected to the inner wall of the lower air inlet (12), the lower end of the upper inclined plate (16) being arranged close to the side discharge port (14), the upper inclined plate (16) being provided with an opening, a filter screen (17) being installed on the opening, a side baffle (18) being mounted on the lower end of the upper inclined plate (16), the side baffle (18) being used to cover the side discharge port (14), and a plurality of spring columns (19) being connected between the lower frame (15) and the upper inclined plate (16).

5. The multi-air inlet structure of a powder classifier according to claim 4, characterized in that: A lever (20) is installed on the side baffle (18), and the lever (20) is arranged to protrude out of the discharge port (14).

6. The multi-air inlet structure of a powder classifier according to claim 4, characterized in that: The upper inclined plate (16) and the lower frame (15) are arranged in parallel.

7. The multi-air inlet structure of a powder classifier according to claim 3, characterized in that: The side discharge port (14) is arranged away from the lower discharge port of the powder classifier body (10).

8. The multi-air inlet structure of a powder classifier according to claim 1, characterized in that: The lower air inlet (12) can supply cold air or hot air.

9. The multi-air inlet structure of a powder classifier according to claim 1, characterized in that: An air supply valve is installed on the side air inlet (11).

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