A wind separation high purity iron powder equipment

Abstract

The present application relates to a high-purity iron powder air-selected equipment, and to the technical field of iron powder screening, which includes a screen cylinder, a distributor is installed on the upper part of the screen cylinder, and the lower end of the distributor is provided with a first screen plate and a second screen plate in sequence, the first screen plate and the second screen plate are both installed in the screen cylinder, the aperture of the first screen plate is larger than the aperture of the second screen plate, a first discharge pipe is provided above the first screen plate, and a second discharge pipe is provided above the second screen plate, the first discharge pipe and the second discharge pipe are both fixedly connected to the side wall of the screen cylinder, the lower part of the screen cylinder is fixedly connected and connected to the third discharge pipe, a cyclone separator and a bag dust collector are provided on one side of the screen cylinder, the cyclone separator is fixedly connected and connected to the upper end of the screen cylinder, and the upper part of the cyclone separator is connected to the bag dust collector. The present application has the effect of being able to recover iron powder dispersed into the air.

Description

Technical Field

[0001] The present application relates to the technical field of iron powder screening, and in particular to a high-purity iron powder air separation device. Background Art

[0002] Iron powder high purity equipment is widely used in the field of metal powder processing, mainly used to improve the purity and quality of iron powder. With the advancement of industrial technology, the quality requirements for iron powder are getting higher and higher, especially in high-end manufacturing industries such as aerospace, precision instruments and other fields, which have strict requirements on the purity and particle size distribution of iron powder. Therefore, efficient sorting equipment has become one of the key factors to improve product quality.

[0003] In the related technology, iron powder is usually screened by a vibrating screen, which distinguishes the types of iron powder by screening the diameter of the iron powder. The technology of vibrating screens is relatively mature. However, although the vibrating screen can have a certain effect in distinguishing iron powder, when the vibrating screen is actually used to separate the iron powder, some lighter iron powder will be dispersed into the air along with the smoke and dust during the vibration process. This part of the iron powder still has a certain recovery value. Summary of the invention

[0004] In order to recover the iron powder emitted into the air, the present application provides a high-purity iron powder air separation device.

[0005] The present application provides a high-purity iron powder air separation equipment adopts the following technical solution:

[0006] A high-purity iron powder air selection equipment comprises a sieve cylinder, a distributor is installed on the upper part of the sieve cylinder, a first sieve plate and a second sieve plate are sequentially arranged at the lower end of the distributor, the first sieve plate and the second sieve plate are both installed in the sieve cylinder, the aperture of the first sieve plate is larger than the aperture of the second sieve plate, a first discharge pipe is arranged above the first sieve plate, a second discharge pipe is arranged above the second sieve plate, the first discharge pipe and the second discharge pipe are both fixedly connected to the side wall of the sieve cylinder, the lower part of the sieve cylinder is fixedly connected and communicated with a third discharge pipe, a cyclone separator and a bag dust collector are arranged on one side of the sieve cylinder, the cyclone separator is fixedly connected and communicated with the upper end of the sieve cylinder, and the upper part of the cyclone separator is communicated with the bag dust collector.

[0007] By adopting the above technical solution, the iron powder can be uniformly added to the sieve drum through the distributor, and then the iron powder is filtered in layers through the first sieve plate and the second sieve plate, so that the iron powders of different diameters after filtering are discharged from the sieve drum through the first discharge pipe, the second discharge pipe and the third discharge pipe respectively, and the flue gas can be generated in batches during this process. The iron powder-containing flue gas generated during the screening process can then enter the cyclone separator for separation, so that the iron powder and the smoke dust are separated, and then the separated smoke dust can enter the bag filter for collection, thereby recovering the iron powder emitted into the air.

[0008] Optionally, one end of the first screen plate away from the first discharge pipe is rotatably connected to the side wall of the screen cylinder, and the lower end of the first screen plate close to the first discharge pipe is provided with a vibration assembly for supporting and driving the first screen plate to reciprocate, and the first screen plate is tilted downward at one end close to the first discharge pipe.

[0009] By adopting the above technical solution, since a large amount of iron powder passes through the first sieve plate, a vibration component can be set to provide an additional vibration source for the first sieve, thereby improving the screening capacity of the first sieve plate and reducing the occurrence of iron powder clogging the first sieve plate or congestion above the first sieve plate.

[0010] Optionally, the vibration assembly includes a driving cylinder fixedly connected to the outer wall of the screen cylinder, a cross bar is fixedly connected inside the screen cylinder, a slide groove is provided on the cross bar along the length direction of the cross bar, a driving rod is slidably connected in the slide groove, the telescopic end of the driving cylinder is fixedly connected to the driving rod, a plurality of protrusions are fixedly connected to the driving rod, a plurality of grooves are provided at the lower end of the first screen plate, the protrusions correspond to the grooves one by one and the protrusions abut against the grooves.

[0011] By adopting the above technical solution, the driving cylinder can drive the driving rod to slide in the slide groove, so that the protrusion repeatedly abuts against the lower part of the groove, thereby causing the first screen plate to vibrate reciprocatingly.

[0012] Optionally, a plurality of fixed sieve plates are provided between the first sieve plate and the first discharge pipe, and the plurality of fixed sieve plates are equidistantly arranged along the length direction of the cross bar, and a same movable sieve plate is provided above two adjacent fixed sieve plates, and the movable sieve plate is fixedly connected to the driving rod, and the ends of the movable sieve plate and the fixed sieve plate close to the first discharge pipe are both inclined downward, and a sealing component for sealing the first discharge pipe is provided at the first discharge pipe.

[0013] By adopting the above technical scheme, a certain amount of iron powder is still adhered or attached to the large-diameter iron powder blocks blocked by the first sieve plate, so that when the large-diameter iron powder blocks blocked by the first sieve plate can pass through the first sieve plate into the top of the movable sieve plate and the fixed sieve plate, the first discharge pipe can be blocked by the blocking component, and then the large-diameter iron powder blocks can be concentratedly filtered on the first sieve plate and the second sieve plate, and when the driving rod reciprocates and retracts, the movable sieve plate can move with the driving rod, thereby causing the movable sieve plate to slide on the fixed sieve plate, thereby causing the iron powder blocks concentrated on the movable sieve plate and the fixed sieve plate to roll on the fixed sieve plate and the movable sieve plate to a certain extent, and a certain amount of iron powder blocks accumulated on the fixed sieve plate are broken up by the movable sieve plate, and filtered by the fixed sieve plate and the movable sieve plate, thereby reducing the iron powder adhesion on the iron powder blocks on the fixed sieve plate and the movable sieve plate, thereby improving the screening effect of iron powder and the recovery efficiency of fine iron powder.

[0014] Optionally, the blocking assembly includes a blocking plate disposed at the feed end of the first discharge pipe, and the first discharge pipe is provided with a blocking cylinder for driving the blocking plate to cancel blocking of the first discharge pipe or to block the first discharge pipe.

[0015] By adopting the above technical solution, the blocking cylinder can be controlled by blocking, so that the blocking cylinder drives the blocking plate to move, thereby quickly changing the blocking state of the first discharge pipe by the blocking cylinder.

[0016] Optionally, a first flattening rod is fixedly connected to the side wall of the cross bar, the first flattening rod is placed above the movable screen plate, there is a gap between the first flattening rod and the movable screen plate, and a section of the first flattening rod close to the end of the first screen plate protrudes upward.

[0017] By adopting the above-mentioned technical solution, when the movable screen plate slides, the first flattening rod slides relative to the movable screen plate, so that the first flattening rod pushes the iron powder pile that is too high on the movable screen plate, so that the iron powder pile is more evenly distributed on the movable screen plate or the fixed screen plate, thereby improving the uniformity of distribution of iron powder on the movable screen plate or the fixed screen plate, and then improving the filtering effect of the fixed screen plate or the fixed screen plate on the iron powder.

[0018] Optionally, a second flattening rod is fixedly connected to the side wall of the driving rod, a section of the second flattening rod close to the end of the first screen plate protrudes downward, the second flattening rod is placed above the fixed screen plate and the second flattening rod is in contact with the fixed screen plate.

[0019] By adopting the above technical solution, when the driving rod moves reciprocatingly, the second spreading rod can move with the driving rod. At this time, the second spreading rod will break up the iron powder pile on the upper surface of the fixed screen plate, thereby making the iron powder on the upper end of the fixed screen plate more evenly distributed on the fixed screen plate.

[0020] Optionally, a hidden groove is provided on the inner side wall of the sieve cylinder, and the rotational connection between the first sieve plate and the first sieve plate is disposed in the hidden groove.

[0021] By adopting the above technical solution, the hidden groove can be provided to reduce the occurrence of iron powder directly falling on the rotating connection between the first screen plate and the screen drum, thereby reducing the influence of the iron powder on the rotation of the first screen plate.

[0022] In summary, the present application includes at least one of the following beneficial technical effects:

[0023] 1. After the filtration is completed, the iron powders of different diameters are discharged from the sieve drum through the first discharge pipe, the second discharge pipe and the third discharge pipe respectively. During this process, smoke can be generated in batches. The iron powder-containing smoke generated during the screening process can then enter the cyclone separator for separation, so that the iron powder and smoke dust are separated. The separated smoke dust can then enter the bag filter for collection, thereby recovering the iron powder emitted into the air;

[0024] 2. A vibration assembly can be provided to provide an additional vibration source to the first screen, thereby improving the screening capacity of the first screen plate and reducing the occurrence of iron powder clogging the first screen plate or congestion above the first screen plate;

[0025] 3. The first leveling rod can slide together with the driving rod, so that the first leveling rod can push the iron powder pile that is too high on the movable screen plate, so that the iron powder pile is more evenly distributed on the movable screen plate or the fixed screen plate, thereby improving the distribution uniformity of the iron powder on the movable screen plate or the fixed screen plate, and then improving the filtering effect of the fixed screen plate or the fixed screen plate on the iron powder. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application;

[0027] Figure 2 is a schematic structural diagram of the second sieve plate in an embodiment of the present application;

[0028] Figure 3 is a schematic structural diagram of a driving rod in an embodiment of the present application;

[0029] Figure 4 is a schematic structural diagram of a blocking plate in an embodiment of the present application;

[0030] Figure 5 It is a schematic diagram of the structure of the first tiling rod of an embodiment of the present application.

[0031] In the figure, 1. screen drum; 2. distributor; 3. first screen plate; 31. groove; 4. second screen plate; 5. first discharge pipe; 6. second discharge pipe; 7. third discharge pipe; 8. bag filter; 9. cyclone separator; 10. vibration assembly; 101. drive cylinder; 102. cross bar; 1021. slide groove; 103. drive rod; 1031. bump; 11. fixed screen plate; 12. movable screen plate; 13. first flattening rod; 14. second flattening rod; 15. hidden groove; 16. sealing assembly; 161. sealing cylinder; 162. sealing plate. DETAILED DESCRIPTION

[0032] The following is combined with Figure 1 -Attached Figure 5 , further details of this application are given.

[0033] The embodiment of the present application is: a high-purity iron powder air separation device, referring to Figure 1 and Figure 2 , comprising a screen drum 1, the screen drum 1 is set as a screen drum 1 with a vibrating device at its lower end in the prior art, and the upper end of the screen drum 1 is sealed. A distributor 2 is installed at the upper part of the screen drum 1, and the distributor 2 is an iron powder distributor 2 that evenly distributes iron powder in the screen drum 1 in the prior art.

[0034] The lower end of the distributor 2 is provided with a first sieve plate 3 and a second sieve plate 4 in sequence, and the first sieve plate 3 and the second sieve plate 4 are both arranged in a rectangular parallelepiped shape. The first sieve plate 3 and the second sieve plate 4 are both arranged in the sieve drum 1, and the aperture of the first sieve plate 3 is larger than the aperture of the second sieve plate 4. A first discharge pipe 5 is arranged above the first sieve plate 3, and a second discharge pipe 6 is arranged above the second sieve plate 4. The first discharge pipe 5 and the second discharge pipe 6 are both fixedly connected to the side wall of the sieve drum 1, and the first discharge pipe 5 and the second discharge pipe 6 are both connected to the inside of the sieve drum 1.

[0035] One end of the first sieve plate 3 away from the first discharge pipe 5 is rotatably connected to the inner wall of the sieve drum 1. In order to reduce the influence of iron powder on the rotation of the first sieve plate 3, a hidden groove 15 is provided on the inner side wall of the sieve drum 1, and the rotation connection between the first sieve plate 3 and the first sieve plate 3 is disposed in the hidden groove 15. The end of the first sieve plate 3 close to the first discharge pipe 5 is tilted downward. The second sieve plate 4 is fixedly connected in the sieve drum 1. The end of the second sieve plate 4 close to the second discharge pipe 6 is tilted downward.

[0036] The lower part of the sieve drum 1 is fixedly connected and communicated with a third discharge pipe 7. A cyclone separator 9 and a bag dust collector 8 are provided on one side of the sieve drum 1. The cyclone separator 9 is fixedly connected and communicated with the upper end of the sieve drum 1, and the upper part of the cyclone separator 9 is communicated with the bag dust collector 8.

[0037] The sieve drum 1 can be controlled to vibrate itself, and then the iron powder is evenly spread on the first sieve plate 3 through the distributor 2, and then the iron powder is filtered in layers through the first sieve plate 3 and the second sieve plate 4, so that iron powders of different diameters after filtering are discharged from the sieve drum 1 through the first discharge pipe 5, the second discharge pipe 6 and the third discharge pipe 7 respectively. The iron powder-containing flue gas generated during the screening process can enter the cyclone separator 9 for separation, so that the iron powder and the smoke are separated, and then the separated smoke can enter the bag dust collector 8 for collection.

[0038] A vibration assembly 10 is provided at the lower end of the first sieve plate 3 near the first discharge pipe 5 for supporting and driving the first sieve plate 3 to reciprocate.

[0039] Reference Figure 1 , Figure 2 and Figure 3 The vibration assembly 10 includes a driving cylinder 101 fixedly connected to the outer wall of the screen drum 1, and a cross bar 102 is fixedly connected inside the screen drum 1. The cross bar 102 is placed at the lower end of the first screen plate 3 near the first discharge pipe 5. The cross bar 102 is arranged along the width direction of the first screen plate 3, and a chute 1021 arranged along the length direction of the cross bar 102 is provided at the upper end of the cross bar 102. A driving rod 103 is slidably connected in the chute 1021, and the driving rod 103 is arranged parallel to the cross bar 102. The telescopic end of the driving cylinder 101 passes through the side wall of the screen drum 1 and is fixedly connected to the driving rod 103. A plurality of protrusions 1031 are fixedly connected to the driving rod 103, and the plurality of protrusions 1031 are arranged equidistantly along the length direction of the driving rod 103. A plurality of grooves 31 are provided at the lower end of the first screen plate 3, and the protrusions 1031 correspond to the grooves 31 one by one and the protrusions 1031 abut against the grooves 31.

[0040] The driving cylinder 101 can drive the driving rod 103 to slide in the sliding groove 1021, so that the protrusion 1031 repeatedly abuts against the lower part of the groove 31, thereby causing the first screen plate 3 to vibrate reciprocatingly.

[0041] Reference Figure 4 and Figure 5 A plurality of fixed sieve plates 11 are provided between the first sieve plate 3 and the first discharge pipe 5, and the fixed sieve plates 11 are arranged in a rectangular parallelepiped shape. The plurality of fixed sieve plates 11 are arranged equidistantly along the length direction of the cross bar 102 and are fixedly connected to the cross bar 102, and a same movable sieve plate 12 is provided above two adjacent fixed sieve plates 11. The movable sieve plate 12 is fixedly connected to the driving rod 103, and the ends of the movable sieve plate 12 and the fixed sieve plate 11 close to the first discharge pipe 5 are both arranged to be tilted downward, and a plugging assembly 16 for plugging the first discharge pipe 5 is provided at the first discharge pipe 5.

[0042] The blocking assembly 16 includes a blocking plate 162 disposed at the feed end of the first discharge pipe 5, and a blocking cylinder 161 is provided on the first discharge pipe 5 for driving the blocking plate 162 to cancel the blocking of the first discharge pipe 5 or to block the first discharge pipe 5. Thus, the blocking cylinder 161 can be controlled by blocking, so that the blocking cylinder 161 drives the blocking plate 162 to move, thereby quickly changing the blocking state of the first discharge pipe 5 by the blocking cylinder 161.

[0043] After the iron powder falls on the first sieve plate 3, a certain amount of iron powder may still be adhered or stuck to the large-diameter iron powder blocks blocked by the first sieve plate 3. Therefore, when the large-diameter iron powder blocks blocked by the first sieve plate 3 can pass through the first sieve plate 3 into the upper part of the movable sieve plate 12 and the fixed sieve plate 11, the first discharge pipe 5 can be blocked by the blocking component 16, and then the large-diameter iron powder blocks can be concentratedly filtered on the first sieve plate 3 and the second sieve plate 4, and when the driving rod 103 reciprocates and retracts, the movable sieve plate 12 can move along with the driving rod 103. The movable sieve plate 12 moves, thereby making the movable sieve plate 12 slide on the fixed sieve plate 11, thereby making the iron powder blocks concentrated on the movable sieve plate 12 and the fixed sieve plate 11 roll to a certain extent on the fixed sieve plate 11 and the movable sieve plate 12, and breaking up a certain amount of iron powder blocks accumulated on the fixed sieve plate 11 through the movable sieve plate 12, and filtering through the fixed sieve plate 11 and the movable sieve plate 12, so that most of the fine iron powder attached to the iron powder blocks passes through the fixed sieve plate 11 and the fixed sieve plate 11 into the second sieve plate 4 for screening. In this way, the iron powder adhesion on the iron powder blocks on the fixed sieve plate 11 and the movable sieve plate 12 is reduced.

[0044] A first paving rod 13 is fixedly connected to the side wall of the crossbar 102. The first paving rod 13 is placed above the movable screen plate 12. There is a gap between the first paving rod 13 and the movable screen plate 12. A section of the first paving rod 13 near the end of the first screen plate 3 protrudes upward. A second paving rod 14 is fixedly connected to the side wall of the driving rod 103. A section of the second paving rod 14 near the end of the first screen plate 3 protrudes downward. The second paving rod 14 is placed above the fixed screen plate 11 and the downward protruding portion of the second paving rod 14 abuts against the fixed screen plate 11.

[0045] When the iron powder is placed on the fixed sieve plate 11 and the movable sieve plate 12, the excess iron powder will form a conical pile of iron powder. When the movable sieve plate 12 slides with the driving rod 103, the first paving rod 13 slides relative to the movable sieve plate 12, so that the first paving rod 13 pushes the excessively high iron powder pile on the movable sieve plate 12, and makes part of the iron powder fall on the fixed sieve plate 11, so that the iron powder pile is more evenly distributed on the movable sieve plate 12 or the fixed sieve plate 11. When the driving rod 103 moves back and forth, the second paving rod 14 can move with the driving rod 103, and at this time the second paving rod 14 will break up the iron powder pile on the upper end surface of the fixed sieve plate 11, so that the iron powder on the upper end of the fixed sieve plate 11 is more evenly distributed on the fixed sieve plate 11.

[0046] The embodiments of this specific implementation are all preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. The same components are represented by the same figure marks. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A high-purity iron powder air separation device, characterized in that: The invention comprises a sieve drum (1), wherein a distributor (2) is installed at the upper part of the sieve drum (1), and a first sieve plate (3) and a second sieve plate (4) are sequentially arranged at the lower end of the distributor (2), and the first sieve plate (3) and the second sieve plate (4) are both installed in the sieve drum (1), and the aperture of the first sieve plate (3) is larger than the aperture of the second sieve plate (4), and a first discharge pipe (5) is arranged above the first sieve plate (3), and a second discharge pipe (6) is arranged above the second sieve plate (4), and the first discharge pipe (5) and the second discharge pipe (6) are both fixedly connected to the side wall of the sieve drum (1), and a third discharge pipe (7) is fixedly connected and communicated with the lower part of the sieve drum (1), and the sieve drum A cyclone separator (9) and a bag dust collector (8) are provided on one side of the sieve drum (1); the cyclone separator (9) is fixedly connected to and communicated with the upper end of the sieve drum (1); the upper part of the cyclone separator (9) is communicated with the bag dust collector (8); one end of the first sieve plate (3) away from the first discharge pipe (5) is rotatably connected to the side wall of the sieve drum (1); the lower end of the first sieve plate (3) close to the first discharge pipe (5) is provided with a vibration component (10) for supporting and driving the first sieve plate (3) to reciprocate; the end of the first sieve plate (3) close to the first discharge pipe (5) is arranged to be tilted downward; the vibration component (10) includes a fixed connection A driving cylinder (101) is provided on the outer wall of the sieve drum (1); a cross bar (102) is fixedly connected to the sieve drum (1); a slide groove (1021) is provided on the cross bar (102) along the length direction of the cross bar (102); a driving rod (103) is slidably connected to the slide groove (1021); a telescopic end of the driving cylinder (101) is fixedly connected to the driving rod (103); a plurality of protrusions (1031) are fixedly connected to the driving rod (103); a plurality of grooves (31) are provided at the lower end of the first sieve plate (3); the protrusions (1031) correspond to the grooves (31) one by one, and the protrusions (1031) abut against the grooves ( 31), a plurality of fixed sieve plates (11) are arranged between the first sieve plate (3) and the first discharge pipe (5), the plurality of fixed sieve plates (11) are arranged equidistantly along the length direction of the cross bar (102) and are fixedly connected to the cross bar (102), a same movable sieve plate (12) is arranged above two adjacent fixed sieve plates (11), the movable sieve plate (12) is fixedly connected to the driving rod (103), the ends of the movable sieve plate (12) and the fixed sieve plate (11) close to the first discharge pipe (5) are both arranged to be inclined downward, and a blocking component (16) for blocking the first discharge pipe (5) is provided at the first discharge pipe (5).

2. The high-purity iron powder air separation equipment according to claim 1 is characterized in that: The blocking assembly (16) comprises a blocking plate (162) disposed at the feed end of the first discharge pipe (5), and the first discharge pipe (5) is provided with a blocking cylinder (161) for driving the blocking plate (162) to cancel blocking of the first discharge pipe (5) or to block the first discharge pipe (5).

3. The high-purity iron powder air separation equipment according to claim 1 is characterized in that: A first flattening rod (13) is fixedly connected to the side wall of the cross bar (102); the first flattening rod (13) is placed above the movable screen plate (12); a gap exists between the first flattening rod (13) and the movable screen plate (12); a section of the first flattening rod (13) close to the end of the first screen plate (3) protrudes upward.

4. The high-purity iron powder air separation equipment according to claim 3 is characterized in that: A second flattening rod (14) is fixedly connected to the side wall of the driving rod (103), a section of the second flattening rod (14) close to the end of the first screen plate (3) protrudes downwards, and the second flattening rod (14) is placed above the fixed screen plate (11) and the second flattening rod (14) is in contact with the fixed screen plate (11).

5. The high-purity iron powder air separation equipment according to claim 1, characterized in that: A hidden groove (15) is provided on the inner side wall of the screen drum (1), and the rotational connection between the first screen plate (3) and the first screen plate (3) is located in the hidden groove (15).

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