CN219073513U - Powder screening plant - Google Patents
Powder screening plant Download PDFInfo
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- CN219073513U CN219073513U CN202223020270.8U CN202223020270U CN219073513U CN 219073513 U CN219073513 U CN 219073513U CN 202223020270 U CN202223020270 U CN 202223020270U CN 219073513 U CN219073513 U CN 219073513U
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Abstract
The utility model relates to the technical field of screening devices and discloses a powder screening device which comprises a shell, a screening tank, an accelerating plate, a driving piece, a discharging pipe and a negative pressure generating piece, wherein the accelerating plate is arranged on the shell; the housing has a cavity; the screening tank is rotatably connected with the shell and comprises a feeding section, a filtering section and a slag discharging section; the filtering section is provided with a material cavity and is arranged in the cavity, and a filtering hole is formed in the filtering section; the feeding section is provided with a feeding channel and a feeding port; the slag discharging section is provided with a slag discharging channel and a slag discharging hole; the accelerating plate is arranged in the slag discharging channel; the driving piece can drive the screening tank to rotate around the central axis of the screening tank; the cavity of the discharge pipe is communicated; the negative pressure generating piece is connected with the discharge pipe; the utility model can discharge unfiltered residues and large-particle impurities while screening microparticles so as to avoid the blockage of equipment by the unfiltered residues and the large-particle impurities and improve the screening efficiency of powder.
Description
Technical Field
The utility model relates to the technical field of screening devices, in particular to a powder screening device.
Background
The sieving device separates particle groups according to particle size and specific gravity, and the mixture materials with different particle sizes are separated into various particle size grades by using a sieving surface with holes.
When the existing powder screening device is used, unfiltered residues and large-particle impurities cannot be discharged while micro-particles are screened out, so that the unfiltered residues and large-particle impurities in the powder can stay in equipment continuously, equipment is blocked, the equipment is stopped after the equipment works for a period of time, time is consumed to remove the unfiltered residues and large-particle impurities in the equipment, and the screening efficiency of the powder is reduced.
Disclosure of Invention
The utility model aims to provide a powder screening device which can screen out micro-particles and discharge unfiltered residues and large-particle impurities at the same time so as to avoid the blockage of equipment by the unfiltered residues and the large-particle impurities and improve the screening efficiency of the powder.
In order to achieve the above purpose, the utility model provides a powder screening device, which comprises a shell, a screening tank, an accelerating plate, a driving piece, a discharging pipe and a negative pressure generating piece;
the housing has a cavity; the screening tank is rotatably connected with the shell and comprises a feeding section, a filtering section and a slag discharging section; the filtering section is provided with a material cavity and is arranged in the cavity, the filtering section is provided with a plurality of filtering holes, and the material cavity is communicated with the cavity through the plurality of filtering holes; the feeding section is provided with a feeding channel and a feeding port, the lower end of the feeding channel is communicated with the material cavity, and the upper end of the feeding channel extends out of the cavity and is communicated with the feeding port; the slag discharging section is provided with slag discharging channels and slag discharging holes, the upper ends of the slag discharging channels are communicated with the material cavity, the lower ends of the slag discharging channels extend out of the cavity and are communicated with the slag discharging holes, and the number of the slag discharging holes is multiple; the accelerating plate is arranged in the slag discharging channel and is fixedly connected with the slag discharging section; the output end of the driving piece is fixedly connected with the lower end of the slag discharging section and can drive the screening tank to rotate around the central axis of the screening tank; one end of the discharge pipe is communicated with the lower part of the cavity; the negative pressure generating piece is connected with the material discharging pipe and can provide negative pressure for the material discharging pipe.
The material discharging pipe is fixed at one end far away from the shell and is communicated with a filter bag.
For ease of understanding, the particles in the powder that can be discharged through the filter holes are referred to as microparticles, and the particles in the powder that cannot be discharged through the filter holes but can be discharged through the slag discharge holes are referred to as macroparticles, that is, macroparticles having a larger particle diameter than microparticles and having a larger pore diameter than the filter holes.
Preferably, the acceleration plate includes a center portion and a blade portion; one end of the blade part is fixedly connected with the central part, and the other end of the blade part is fixedly connected with the inner wall of the slag discharging channel; the number of the blade parts is multiple, and the blade parts are sequentially arranged at intervals around the central part.
Preferably, the screening tank is rotatably connected to the housing by a bearing assembly.
Further, the bearing assembly includes a first bearing and a second bearing; the feeding section is rotatably connected with the shell through the first bearing, and the filtering section is rotatably connected with the shell through the second bearing.
Preferably, the powder screening device further comprises a sealing ring assembly, and the sealing ring assembly is arranged between the inner wall of the shell and the outer wall of the screening tank.
Further, the seal ring assembly comprises a first seal ring and a second seal ring; the top of the shell is provided with a first through hole for the feeding section to pass through from bottom to top, and the bottom of the shell is provided with a second through hole for the slag discharging section to pass through from top to bottom; the outer wall of the first sealing ring is contacted with the inner wall of the first through hole, and the inner wall is contacted with the outer wall of the feeding section; the outer wall of the second sealing ring is contacted with the inner wall of the second through hole, and the inner wall is contacted with the outer wall of the slag discharging section.
Preferably, the powder screening device further comprises a guide plate, and the guide plate is arranged in the cavity.
Further, the upper end of the guide plate is fixedly connected with the inner wall of the cavity, the lower end of the guide plate extends to the inlet of the discharge pipe, and the guide plate is provided with a third through hole for the screening tank to pass through.
Preferably, the powder screening device further comprises a slag collecting cup, the slag collecting cup is provided with a slag collecting groove, and the slag discharging channel is communicated with the slag collecting groove through the slag discharging hole; the bottom of the slag collecting cup is provided with a fourth through hole for the output end of the driving piece to pass through from bottom to top.
Compared with the prior art, the powder screening device has the beneficial effects that: the driving piece can drive the sieving tank to rotate, so that the accelerating plate can accelerate materials in the deslagging channel, microparticles in the deslagging channel can move upwards to the material cavity conveniently, under the negative pressure effect of the negative pressure generating piece, the microparticles are sucked out of the filtering holes to the cavity and adsorbed to the discharging pipe from the cavity, and meanwhile, unfiltered residues and large-particle impurities in the deslagging channel can move downwards to the lower end of the deslagging channel and are discharged through the deslagging holes.
Drawings
FIG. 1 is a block diagram of a powder screening device according to an embodiment of the present utility model;
FIG. 2 is a block diagram of a screening tank provided by an embodiment of the present utility model;
FIG. 3 is a partial block diagram of a seed powder screening device according to an embodiment of the present utility model;
fig. 4 is a structural diagram of an acceleration plate according to an embodiment of the present utility model.
In the figure, 1, a shell; 11. a cavity; 12. a bracket;
2. a screening tank; 21. a feed section; 22. a filtering section; 23. a slag discharging section; 211. a feed channel; 221. a material cavity; 222. a filter hole; 231. a slag discharging channel; 232. a slag discharging hole;
3. an acceleration plate; 31. a center portion; 32. a blade section;
4. a driving member;
5. a discharge pipe;
6. a negative pressure generating member;
71. a first bearing; 72. a second bearing;
81. a first seal ring; 82. a second seal ring;
9. a deflector;
10. a slag collecting cup; 101. a slag collecting groove.
Detailed Description
The following describes in further detail the embodiments of the present utility model with reference to the drawings and examples. The following examples are illustrative of the utility model and are not intended to limit the scope of the utility model.
In the description of the present utility model, it should be understood that the terms "center," "upper," "lower," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate description of the present utility model and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.
The terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature.
In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.
As shown in fig. 1-2, a powder screening device according to an embodiment of the present utility model preferably includes a housing 1, a screening tank 2, an acceleration plate 3, a driving member 4, a discharge pipe 5, and a negative pressure generating member 6;
the housing 1 has a cavity 11;
the screening tank 2 is rotatably connected with the shell 1, and the screening tank 2 comprises a feeding section 21, a filtering section 22 and a slag discharging section 23; the filtering section 22 is provided with a material cavity 221 and is arranged in the cavity 11, the filtering section 22 is provided with a plurality of filtering holes 222, and the material cavity 221 is communicated with the cavity 11 through the plurality of filtering holes 222; the feeding section 21 is provided with a feeding channel 211 and a feeding hole, wherein the lower end of the feeding channel 211 is communicated with the material cavity 221, and the upper end of the feeding channel extends out of the cavity 11 and is communicated with the feeding hole; the slag discharging section 23 is provided with slag discharging channels 231 and slag discharging holes 232, the upper ends of the slag discharging channels 231 are communicated with the material cavity 221, the lower ends of the slag discharging channels extend out of the cavity 11 and are communicated with the slag discharging holes 232, and the number of the slag discharging holes 232 is a plurality;
the accelerating plate 3 is arranged in the slag discharging channel 231 and is fixedly connected with the slag discharging section 23;
the output end of the driving piece 4 is fixedly connected with the lower end of the slag discharging section 23 and can drive the screening tank 2 to rotate around the central axis of the screening tank 2;
one end of the discharge pipe 5 is communicated with the lower part of the cavity 11;
the negative pressure generating member 6 is connected to the discharge pipe 5 and is capable of providing negative pressure to the discharge pipe 5.
According to the technical scheme, the sieving tank 2 can be driven to rotate through the driving piece 4, so that the accelerating plate 3 can accelerate materials in the deslagging channel 231, micro particles in the deslagging channel 231 can move upwards to the material cavity 221 conveniently, under the negative pressure effect of the negative pressure generating piece 6, the micro particles are sucked out of the filtering holes 222 to the cavity 11 and adsorbed to the discharging pipe 5 from the cavity 11, and meanwhile, unfiltered residues and large particle impurities in the deslagging channel 231 can move downwards to the lower part of the deslagging channel 231 and are discharged through the deslagging holes 232.
The end of the discharge pipe 5 remote from the housing 1 is fixed and communicates with a filter bag (not shown).
Specifically, the driving piece 4 is a driving motor, the negative pressure generating piece 6 is a discharging fan, and the discharging fan is arranged in the discharging pipe 5.
In this embodiment, four discharge fans are provided.
Referring to fig. 4, the acceleration plate 3 according to the embodiment of the present utility model includes a central portion 31 and a blade portion 32; one end of the vane part 32 is fixedly connected with the central part 31, and the other end is fixedly connected with the inner wall of the slag discharging channel 231; the number of the vane portions 32 is plural, and the plural vane portions 32 are sequentially arranged at intervals around the center portion 31.
Adopt the mode that a plurality of blade portions 32 set up around central portion 31 interval in proper order for powder in the sediment passageway 231 can rotate under the effect of blade portion 32, so that acceleration board 3 can play fine acceleration effect to the powder in the sediment passageway 231, thereby both be favorable to the microparticle in the powder to upwards move to the material chamber 221 and follow the filtration pore 222 and discharge, also be favorable to unfiltered residue and the large granule impurity in the powder to the lower extreme of sediment passageway 231 and follow sediment hole 232 and discharge down.
In this embodiment, the accelerator plate 3 is formed by welding six metal sheets, and the welding positions of the six metal sheets form the central portion 31.
Referring to fig. 1, a screening tank 2 according to an embodiment of the present utility model is rotatably connected to a housing 1 by means of a bearing assembly.
The bearing assembly comprises a first bearing 71 and a second bearing 72; the feed section 21 is rotatably connected to the housing 1 by means of a first bearing 71 and the filter section 22 is rotatably connected to the housing 1 by means of a second bearing 72.
Specifically, the first bearing 71 is a planar bearing, and the second bearing 72 is a linear bearing.
Referring to fig. 1, the embodiment of the utility model further comprises a sealing ring assembly, wherein the sealing ring assembly is arranged between the inner wall of the shell 1 and the outer wall of the screening tank 2.
The seal ring assembly comprises a first seal ring 81 and a second seal ring 82; the top of the shell 1 is provided with a first through hole for the feeding section 21 to pass through from bottom to top, and the bottom of the shell 1 is provided with a second through hole for the slag discharging section 23 to pass through from top to bottom; the outer wall of the first sealing ring 81 is contacted with the inner wall of the first through hole, and the inner wall is contacted with the outer wall of the feeding section 21; the outer wall of the second sealing ring 82 contacts with the inner wall of the second through hole, and the inner wall contacts with the outer wall of the slag discharging section 23. The sealing ring assembly can play a role in sealing, so that microparticles in the material cavity 221 can be sucked out of the cavity 11 from the filtering hole 222 and adsorbed to the discharge pipe 5 from the cavity 11 under the negative pressure action of the negative pressure generating piece 6.
Referring to fig. 1, in some embodiments, the powder screening device further includes a baffle 9, where the baffle 9 is disposed within the cavity 11.
The upper end of the guide plate 9 is fixedly connected with the inner wall of the cavity 11, the lower end of the guide plate extends to the inlet of the discharge pipe 5, and the guide plate 9 is provided with a third through hole for the screening tank 2 to pass through. The adoption of the guide plate 9 can guide the micro-particles in the cavity 11, so that the micro-particles can smoothly reach the discharge pipe 5.
Specifically, the third through hole is used for allowing the slag discharging part 23 to pass through.
Referring to fig. 1 and 3, in some embodiments, the powder screening device further includes a slag collecting cup 10, the slag collecting cup 10 having a slag collecting tank 101, and a slag discharging passage 231 communicating with the slag collecting tank 101 through a slag discharging hole 232; the bottom of the slag collecting cup 10 is provided with a fourth through hole for the output end of the driving piece 4 to pass through from bottom to top. The slag collecting cup 10 can collect the unfiltered slag and large particles discharged from the slag discharging hole 232.
The bottom of the shell 1 is fixedly connected with a bracket 12, and the slag collecting cup 10 is fixedly arranged on the bracket 12.
The working process of the utility model is as follows: the driving piece 4 and the negative pressure generating piece 6 are connected with a power supply, an output shaft of the driving piece 4 drives the screening tank 2 to rotate, the negative pressure generating piece 6 discharges air in the cavity 11 through the discharge pipe 5, and a filter bag for storing powder microparticles is arranged at one end of the discharge pipe 5 far away from the shell 1; slowly injecting the powder to be filtered into the screening tank 2, wherein the powder downwards enters a slag discharging channel of the screening tank 2, the powder rotates under the action of an accelerating plate 3, microparticles in the powder upwards move under the action of centrifugal force and negative pressure and are filtered and discharged to a cavity 11 through a filtering hole 222, and microparticles in the cavity 11 enter a discharge pipe 5 under the action of the diversion of a diversion plate 9 and the negative pressure of a negative pressure generating piece 6 and reach a filter bag along the discharge pipe 5 to be collected; meanwhile, the large-particle impurities in the slag discharging passage 231 can move downward to the lower portion of the slag discharging passage 231 and be discharged to the slag collecting groove 101 of the slag collecting cup 10 through the slag discharging hole 232.
In summary, the embodiment of the utility model provides a powder screening device, which comprises the following components
The beneficial effects are that:
1. by adopting the accelerating plate 3, the driving part 4 and the negative pressure generating part 6, micro particles in powder can move upwards to the material cavity 221 and are discharged to the cavity 11 from the filtering holes 222, then enter the discharge pipe 5 from the cavity 11, unfiltered residues and large particle impurities in the powder can move downwards to the lower end of the slag discharge channel 231 and are discharged from the slag discharge holes 232, and the purpose of discharging the unfiltered residues and the large particle impurities while screening the micro particles is achieved.
2. Adopt the mode that a plurality of blade portions 32 set up around central portion 31 interval in proper order for powder in the sediment passageway 231 can rotate under the effect of blade portion 32, so that acceleration board 3 can play fine acceleration effect to the powder in the sediment passageway 231, thereby both be favorable to the microparticle in the powder to upwards move to the material chamber 221 and follow the filtration pore 222 and discharge, also be favorable to unfiltered residue and the large granule impurity in the powder to the lower extreme of sediment passageway 231 and follow sediment hole 232 and discharge down.
3. The sealing ring assembly can play a role in sealing, so that the microparticles in the material cavity 221 can be sucked out of the cavity 11 from the filtering hole 222 and absorbed to the discharge pipe 5 from the cavity 11 under the negative pressure action of the negative pressure generating part 6.
4. The adoption of the guide plate 9 can guide the micro-particles in the cavity 11, so that the micro-particles can smoothly reach the discharge pipe 5.
5. The slag collecting cup 10 can collect the unfiltered slag and large particles discharged from the slag discharging hole 232.
The foregoing is merely a preferred embodiment of the present utility model, and it should be noted that modifications and substitutions can be made by those skilled in the art without departing from the technical principles of the present utility model, and these modifications and substitutions should also be considered as being within the scope of the present utility model.
Claims (9)
1. A powder screening device, comprising:
a housing having a cavity;
the screening tank is rotatably connected with the shell and comprises a feeding section, a filtering section and a slag discharging section;
the filtering section is provided with a material cavity and is arranged in the cavity, the filtering section is provided with a plurality of filtering holes, and the material cavity is communicated with the cavity through the plurality of filtering holes;
the feeding section is provided with a feeding channel and a feeding port, the lower end of the feeding channel is communicated with the material cavity, and the upper end of the feeding channel extends out of the cavity and is communicated with the feeding port;
the slag discharging section is provided with slag discharging channels and slag discharging holes, the upper ends of the slag discharging channels are communicated with the material cavity, the lower ends of the slag discharging channels extend out of the cavity and are communicated with the slag discharging holes, and the number of the slag discharging holes is multiple;
the accelerating plate is arranged in the slag discharging channel and is fixedly connected with the slag discharging section;
the output end of the driving piece is fixedly connected with the lower end of the slag discharging section and can drive the screening tank to rotate around the central axis of the screening tank;
one end of the discharge pipe is communicated with the lower part of the cavity;
the negative pressure generating piece is connected with the discharging pipe.
2. The powder screening device of claim 1, wherein the acceleration plate includes a central portion and a blade portion; one end of the blade part is fixedly connected with the central part, and the other end of the blade part is fixedly connected with the inner wall of the slag discharging channel;
the number of the blade parts is multiple, and the blade parts are sequentially arranged at intervals around the central part.
3. The powder screening device of claim 1, wherein the screening canister is rotatably coupled to the housing via a bearing assembly.
4. A powder screening device according to claim 3, wherein the bearing assembly comprises a first bearing and a second bearing; the feeding section is rotatably connected with the shell through the first bearing, and the filtering section is rotatably connected with the shell through the second bearing.
5. The powder screening device of claim 1, further comprising a seal ring assembly disposed between an inner wall of the housing and an outer wall of the screening can.
6. The powder screening device of claim 5, wherein the seal ring assembly comprises a first seal ring and a second seal ring; the top of the shell is provided with a first through hole for the feeding section to pass through from bottom to top, and the bottom of the shell is provided with a second through hole for the slag discharging section to pass through from top to bottom; the outer wall of the first sealing ring is contacted with the inner wall of the first through hole, and the inner wall is contacted with the outer wall of the feeding section; the outer wall of the second sealing ring is contacted with the inner wall of the second through hole, and the inner wall is contacted with the outer wall of the slag discharging section.
7. A powder screening device according to any one of claims 1-6, further comprising a deflector disposed within the cavity.
8. The powder screening device according to claim 7, wherein the upper end of the guide plate is fixedly connected with the inner wall of the cavity, the lower end of the guide plate extends to the inlet of the discharge pipe, and the guide plate is provided with a third through hole for the screening tank to pass through.
9. The powder screening device of any one of claims 1-6, further comprising a slag collection cup having a slag collection trough, the slag discharge channel communicating with the slag collection trough through the slag discharge aperture; the bottom of the slag collecting cup is provided with a fourth through hole for the output end of the driving piece to pass through from bottom to top.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223020270.8U CN219073513U (en) | 2022-11-14 | 2022-11-14 | Powder screening plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223020270.8U CN219073513U (en) | 2022-11-14 | 2022-11-14 | Powder screening plant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219073513U true CN219073513U (en) | 2023-05-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223020270.8U Active CN219073513U (en) | 2022-11-14 | 2022-11-14 | Powder screening plant |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219073513U (en) |
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2022
- 2022-11-14 CN CN202223020270.8U patent/CN219073513U/en active Active
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