CN214077294U - Gas-phase powder grading equipment - Google Patents
Gas-phase powder grading equipment Download PDFInfo
- Publication number
- CN214077294U CN214077294U CN202023133247.0U CN202023133247U CN214077294U CN 214077294 U CN214077294 U CN 214077294U CN 202023133247 U CN202023133247 U CN 202023133247U CN 214077294 U CN214077294 U CN 214077294U
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- air inlet
- dispersion
- cone
- awl
- chamber
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- 239000000843 powder Substances 0.000 title claims abstract description 59
- 239000006185 dispersion Substances 0.000 claims abstract description 29
- 239000002245 particle Substances 0.000 abstract description 11
- 230000000694 effects Effects 0.000 abstract description 6
- 239000007792 gaseous phase Substances 0.000 abstract description 3
- 238000000926 separation method Methods 0.000 abstract description 3
- 239000012071 phase Substances 0.000 description 5
- 230000009471 action Effects 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- 238000007599 discharging Methods 0.000 description 3
- 230000005484 gravity Effects 0.000 description 3
- 230000003247 decreasing effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04C—APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES
- B04C5/00—Apparatus in which the axial direction of the vortex is reversed
- B04C5/24—Multiple arrangement thereof
- B04C5/26—Multiple arrangement thereof for series flow
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04C—APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES
- B04C9/00—Combinations with other devices, e.g. fans, expansion chambers, diffusors, water locks
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B13/00—Grading or sorting solid materials by dry methods, not otherwise provided for; Sorting articles otherwise than by indirectly controlled devices
- B07B13/14—Details or accessories
- B07B13/18—Control
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B7/00—Selective separation of solid materials carried by, or dispersed in, gas currents
- B07B7/08—Selective separation of solid materials carried by, or dispersed in, gas currents using centrifugal force
- B07B7/086—Selective separation of solid materials carried by, or dispersed in, gas currents using centrifugal force generated by the winding course of the gas stream
Landscapes
- Cyclones (AREA)
Abstract
The utility model relates to a gaseous phase powder classification equipment, including feeder hopper, dispersion list awl and the classification room of setting in feeder discharge gate below, the classification room includes awl chamber and lower awl chamber, the top feed inlet at the classification room is established to the feeder hopper, dispersion list awl is established in the classification room and is located the feed inlet below of classification room, the centre of classification indoor portion is equipped with dispersion awl dish and air inlet ring, air inlet ring installs in the junction of last awl chamber and lower awl chamber, the lower awl chamber lateral wall of classification room is equipped with the induced duct that runs through, induced duct one end is connected with dispersion awl dish after the centre bore that air inlet ring was passed from the bottom up, the other end of induced duct extends to the outer cyclone of classification room, the collection tank is connected to the cyclone other end, the classification room bottom is equipped with middlings unloading valve and collecting vessel. The design increases the separation effect on large and small particles, and improves the classification efficiency and the classification precision.
Description
Technical Field
The utility model relates to a superfine powder grading plant, which belongs to the technical field of gas phase grading of nanometer, submicron and micron superfine powder.
Background
Centrifugal cyclone separators are common in known powder phase-splitting classification equipment. In the classification process, after the powder enters the cyclone body under the action of the airflow, the outer circulation flow moving downwards is formed outside the cyclone body due to the action of gravity and centrifugal force, and the large-particle powder moves downwards along the wall of the cyclone body and enters the coarse powder collecting barrel. An internal circulation flow moving upwards is formed in the center of the cyclone body, and the small particle powder moves upwards along the center of the cyclone body and enters the fine powder collecting tank, so that the grading purpose of different particles is achieved. However, in the conventional cyclone classifier, the powder rotates at a slow speed in the cyclone body, and the centrifugal force applied to the powder is weak, so that the classification efficiency is low, the classification precision is poor, and the effect is not good when the nano-scale ultrafine powder is treated.
SUMMERY OF THE UTILITY MODEL
To the problem that above-mentioned grading plant exists, the utility model provides a high-efficient high accuracy, the operation of being convenient for just can better handle the hierarchical gaseous phase powder grading plant of nanometer, submicron order and micron order superfine powder.
The technical proposal of the utility model is that a gas phase powder grading device with the following structure is provided, which comprises a feed hopper, a dispersion single cone and a grading chamber which are arranged below a discharge port of a charging machine, the grading chamber comprises an upper conical cavity and a lower conical cavity, the feed hopper is arranged at a feed inlet at the top of the grading chamber, the dispersing single cone is arranged in the grading chamber and is positioned below the feed inlet of the grading chamber, a dispersing cone disc and an air inlet ring are arranged in the middle of the inner part of the grading chamber, the air inlet ring is arranged at the joint of the upper conical cavity and the lower conical cavity, the side wall of the lower conical cavity of the grading chamber is provided with a through induced draft pipe, one end of the induced draft pipe penetrates through the central hole of the air inlet ring from bottom to top and then is connected with the dispersion conical disc, the other end of the induced draft pipe extends to the cyclone separator outside the grading chamber, the other end of the cyclone separator is connected with the collecting tank, and a coarse powder discharging valve and a coarse powder collecting barrel are arranged at the bottom of the grading chamber.
Preferably, the dispersing single cone is a cone shape with a small top and a large bottom, and a projection bottom extending downwards along the cone surface covers the central hole of the dispersing cone disc, and the ratio of the diameter of the bottom of the dispersing single cone to the diameter of the central hole of the dispersing cone disc is 1: 0.5-1: 4.
preferably, the distance between the bottom of the dispersing single cone and the dispersing cone disc is 1-50 cm.
Preferably, the dispersion cone disc is in a cone frustum shape with a small upper part and a big lower part, and is concentrically placed in a central hole of the air inlet ring.
Preferably, the dispersion conical disc is sleeved at the top end of the inner end of the induced draft tube.
Preferably, the upper conical cavity of the grading chamber is in a cone frustum shape with a small upper part and a large lower part, and the lower conical cavity is in a cone frustum shape with a large upper part and a small lower part. Preferably, a plurality of air inlets are formed in the air inlet ring from the outer side surface to the inner side surface of the air inlet ring through the air inlet ring body. Preferably, the inner wall of the air inlet ring clings to the inner wall of the upper conical cavity of the grading chamber or the inner diameter of the inner wall of the air inlet ring is larger than that of the upper conical cavity
The inner diameter of the bottom of the grading chamber is larger than or equal to that of the air inlet ring, and falling powder is prevented from being deposited on the step table surface at the joint.
Preferably, the air inlet holes of the air inlet ring form an angle of 3-30 degrees with the tangential direction, and the top view surface of the air inlet holes is circular, rectangular, trapezoidal or circular arc according to actual requirements.
Preferably, a valve is arranged between the cyclone separator and the collecting tank, and the number of the cyclone separators can be increased by 1-3 according to requirements.
Compared with the prior art, the utility model has the advantages of it is following:
the design adopts the cone-shaped grading chamber and the porous air inlet ring to admit air, the cyclone experiences a rotation acceleration process every time passing through one air inlet hole, the air inlet of the air hole also reduces the resistance of the inner wall of the grading chamber received by the current-carrying cyclone of the cyclone body, and simultaneously prevents the reduction of the flow speed of the current-carrying cyclone when the cyclone rotates and turns, and the air flow rotation speed is constantly kept and increased. After the powder enters the grading chamber and passes through the dispersing single cone, the dispersibility and the centrifugal force of the powder are improved under the action of high-speed rotating airflow. The separation effect on large particles and small particles is increased, the classification efficiency and the classification precision are improved, the large particle powder is greatly influenced by gravity and centrifugal force, the large particle powder directly enters the coarse powder collecting barrel along the classification conical wall, the small particle powder enters the cyclone separator along with current-carrying gas through the induced duct to be classified again, the large particles after being classified again enter the coarse powder collecting barrel at the bottom of the cyclone separator, and fine powder enters the fine powder collecting tank from the top of the cyclone separator. In addition, the porous air inlet rings of the air inlets with different sizes and different shapes can be replaced to adjust the size and the air inlet direction of the air inlet, so that the grading requirements of different powders are met. Different grading precision requirements of different powders can be met by increasing or decreasing the number of the cyclone separators.
Drawings
Fig. 1 is a schematic structural diagram of the gas-phase powder classifying apparatus of the present invention.
Fig. 2 is a schematic structural view of the air inlet ring of the present invention.
Shown in the figure: 1. the feeder, 2, feeder hopper, 3, dispersion single cone, 4.1, the epicone cavity, 4.2, the lower cone cavity, 5, dispersion cone dish, 6, the ring of admitting air, 7, the induced duct, 8, middlings unloading valve, 9, middlings collecting vessel, 10, cyclone, 10.1, cyclone tangential intake pipe, 10.2, cyclone fine powder outlet duct, 10.3, cyclone middlings collecting vessel, 6.1, big-outside, small-inside arc inlet port, 6.2 rectangle inlet port, 6.3, concentric arc inlet port, 6.4, parallel arc inlet port, 6.5, big-outside, small-inside trapezoidal inlet port.
Detailed Description
The present invention will be further explained with reference to the schematic structural diagram.
As shown in figure 1, the gas phase powder grading device of the utility model comprises a feed hopper 2, a dispersion single cone 3 and a grading chamber which are arranged below a discharge port of a feeder 1, the feed hopper 2 is arranged at the top feed inlet of the grading chamber, the dispersing monocone 3 is arranged in the grading chamber and is positioned below the feed inlet of the grading chamber, a dispersion conical disc 5 and an air inlet ring 6 are arranged in the middle of the inner part of the grading chamber, a plurality of air inlets are arranged on the side surface of the air inlet ring 6, the side wall of the air inlet ring 6 is tightly attached to the inner walls of the upper and lower grading chambers, the lower side conical wall of the grading chamber is provided with an induced draft pipe 7, one end of the induced draft pipe 7 penetrates through the central hole of the air inlet ring 6 from bottom to top, the other end of the induced draft pipe 7 extends to the cyclone separator 10 outside the grading chamber, the other end of the cyclone separator 10 is connected with a collecting tank, and the bottom of the grading chamber is provided with a coarse powder discharging valve 8 and a coarse powder collecting barrel 9.
The dispersion single cone 3 is in a cone shape with a small top and a big bottom, a projection bottom extending downwards along the cone surface covers a central hole of the dispersion cone disc 5, and the ratio of the diameter of the bottom of the dispersion single cone 3 to the diameter of the central hole of the dispersion cone disc 5 is 1: 0.5-1: 4, the distance between the bottom of the dispersing single cone 3 and the dispersing cone disc 5 is 1-50 cm.
The dispersion conical disc 5 is in a circular truncated cone shape with a small upper part and a large lower part, is arranged in a central hole of the air inlet ring and is coaxial with the air inlet hole, and the dispersion conical disc 5 is sleeved at the top end of the inner end of the induced draft tube 7.
The grading chamber consists of two parts, namely a circular truncated cone-shaped upper cone chamber 4.1 which is positioned at the upper part and is small in upper part and a circular truncated cone-shaped lower cone chamber 4.2 which is positioned at the lower part and is large in upper part and lower part, and the air inlet ring 6 is arranged at the connecting part of the upper cone chamber 4.1 and the lower cone chamber 4.2.
As shown in fig. 2, the air inlet holes of the air inlet ring 6 form an angle of 3-30 degrees with the tangential direction, and the top view of the air inlet holes is provided with arc-shaped air inlet holes 6.1 with large outside and small inside, rectangular air inlet holes 6.2, concentric arc-shaped air inlet holes 6.3, parallel arc-shaped air inlet holes 6.4 or trapezoid air inlet holes 6.5 with large outside and small inside according to actual requirements.
A valve is arranged between the cyclone separator 10 and the collecting tank, and 1-3 cyclone separators 10 can be added according to requirements.
A coarse powder discharging valve 8 is arranged between the grading chamber and the coarse powder collecting barrel 9.
Under the effect of the draught fan, powder enters the classifying chamber through the single cone 3 of dispersion through the feeder hopper 2 and makes high-speed rotation, under the effect of gravity and centrifugal force, large granule enters the middlings collecting vessel 9 along the inner wall of the classifying chamber, the tiny granule concentrates on the central point of the classifying chamber and enters the cyclone separator 10 through the draught pipe 7 and the cyclone separator tangential air inlet pipe 10.1, the farine enters the collecting tank from the cyclone separator farine outlet duct 10.2 after passing through the cyclone separator 10, the middlings enter the cyclone separator middlings collecting vessel 10.3 after passing through the cyclone separator 10, thereby achieving the purpose of classification.
The utility model discloses the porous ring 6 that admits air of the different inlet ports of unidimensional is changed to the accessible, adjusts the size and the direction of admitting air of air input, reaches the hierarchical requirement of different powders. The different grading precision requirements of different powders can be achieved by increasing or decreasing the number of the cyclone separators 10.
The air is fed by adopting the conical grading chamber and the porous air inlet ring 6, so that the resistance of the airflow after entering the cyclone body is reduced, and the airflow rotation speed is increased. After the powder enters the grading chamber and passes through the dispersing single cone 3, the dispersibility and the centrifugal force of the powder are improved under the action of high-speed rotating airflow. The separation effect on large particles is increased, and the classification efficiency and the classification precision are improved. The fine powder enters the cyclone separator 9 through the induced draft tube 7 for secondary classification, so that the classification precision of the powder is effectively guaranteed. Compare traditional single grader or cyclone, the utility model discloses gaseous phase powder grading equipment has very big improvement in the classification efficiency and the hierarchical precision of powder, is applicable to the precision classification of the higher nanometer of hierarchical requirement, submicron order, the superfine powder of micron order.
The above description is only a preferred embodiment of the present invention, and the present invention is not limited to the above description, and although the present invention has been disclosed by the preferred embodiment, it is not limited to the present invention, and any person skilled in the art can make modifications or changes equivalent to the equivalent embodiments by utilizing the above disclosed technical contents without departing from the technical scope of the present invention, but all the modifications, changes and changes of the technical spirit of the present invention made to the above embodiments are also within the scope of the technical solution of the present invention.
Claims (10)
1. A gas-phase powder grading equipment is characterized in that: including setting up feeder hopper, dispersion simple cone and the hierarchical room in feeder discharge gate below, hierarchical room is including last awl chamber and lower awl chamber, the top feed inlet at hierarchical room is established to the feeder hopper, dispersion simple cone is established in hierarchical indoor and is located the feed inlet below of hierarchical room, the centre of hierarchical indoor portion is equipped with dispersion awl dish and air inlet ring, the air inlet ring is installed in the junction of last awl chamber and lower awl chamber, the lower awl chamber lateral wall of hierarchical room is equipped with the induced duct that runs through, induced duct one end from the bottom up is passed and is connected with dispersion awl dish behind the centre bore of air inlet ring, the other end of induced duct extends to hierarchical outdoor cyclone, the accumulator is connected to the cyclone other end, hierarchical room bottom is equipped with middlings unloading valve and middlings collecting vessel.
2. The gas-phase powder classifying apparatus according to claim 1, wherein: the dispersion single cone is in a cone shape with a small top and a big bottom, a projection bottom extending downwards along the cone surface covers a central hole of the dispersion cone disc, and the ratio of the diameter of the bottom of the dispersion single cone to the diameter of the central hole of the dispersion cone disc is 1: 0.5-1: 4.
3. the gas-phase powder classifying apparatus according to claim 1 or 2, wherein: the distance between the bottom of the dispersing single cone and the dispersing cone disc is 1-50 cm.
4. The gas-phase powder classifying apparatus according to claim 1, wherein: the dispersion conical disc is in a conical frustum shape with a small upper part and a big lower part, and is concentrically placed in a central hole of the air inlet ring.
5. The gas-phase powder classifying apparatus according to claim 1 or 4, wherein: the dispersion conical disc is sleeved at the top end of the inner end of the induced draft tube.
6. The gas-phase powder classifying apparatus according to claim 1, wherein: the upper conical cavity of the grading chamber
The upper part is a small-sized and the lower part is a large-sized cone frustum, and the lower cone cavity is a large-sized and the lower cone frustum.
7. The gas-phase powder classifying apparatus according to claim 1, wherein: the air inlet ring is provided with a plurality of air inlets from the outer side surface to the inner side surface through the air inlet ring body.
8. The gas-phase powder classifying apparatus according to claim 1 or 7, wherein: the inner wall of the air inlet ring is tightly attached to the inner wall of the upper conical cavity of the grading chamber or the inner diameter of the inner wall of the air inlet ring is larger than the inner diameter of the bottom of the upper conical cavity, the inner diameter of the top of the lower conical cavity of the grading chamber is larger than or equal to the inner diameter of the air inlet ring, and falling powder is prevented from being deposited on a step table surface at the joint.
9. The gas-phase powder classifying apparatus according to claim 7, wherein: the air inlet holes of the air inlet ring form an angle of 3-30 degrees with the tangential direction, and the overlooking surface of the air inlet holes is circular, rectangular, trapezoidal or circular arc according to actual requirements.
10. The gas-phase powder classifying apparatus according to claim 1, wherein: valves are arranged between the cyclone separators and the collecting tank, and the number of the cyclone separators is 1-3.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023133247.0U CN214077294U (en) | 2020-12-23 | 2020-12-23 | Gas-phase powder grading equipment |
| PCT/CN2021/119879 WO2022134687A1 (en) | 2020-12-23 | 2021-09-23 | Gas-phase powder grading device |
| TW110214979U TWM625640U (en) | 2020-12-23 | 2021-12-16 | Gas-phase powder grading equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023133247.0U CN214077294U (en) | 2020-12-23 | 2020-12-23 | Gas-phase powder grading equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214077294U true CN214077294U (en) | 2021-08-31 |
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ID=77431674
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023133247.0U Active CN214077294U (en) | 2020-12-23 | 2020-12-23 | Gas-phase powder grading equipment |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN214077294U (en) |
| TW (1) | TWM625640U (en) |
| WO (1) | WO2022134687A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022134687A1 (en) * | 2020-12-23 | 2022-06-30 | 江苏博迁新材料股份有限公司 | Gas-phase powder grading device |
| CN115532598A (en) * | 2022-10-09 | 2022-12-30 | 连云港华威硅微粉有限公司 | A kind of silica powder classifying treatment device |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4881279B2 (en) * | 2007-11-06 | 2012-02-22 | 新日鉄エンジニアリング株式会社 | Waste gas melting furnace gas pipe and cyclone dust adhesion prevention method and apparatus |
| JP3192410U (en) * | 2014-06-02 | 2014-08-14 | 株式会社ケイ・テイ・エイ | Cyclone type classifier and dust collector equipped with the classifier |
| CN205599522U (en) * | 2016-04-13 | 2016-09-28 | 江苏博迁新材料有限公司 | Submicron metallic powder does not have oxygen partial pressure level equipment |
| CN209501993U (en) * | 2018-12-18 | 2019-10-18 | 宁波广新纳米材料有限公司 | Double air inlet ring type particle classifying equipment |
| CN209501995U (en) * | 2018-12-18 | 2019-10-18 | 宁波广新纳米材料有限公司 | Multi-functional powder disperses reclaimer |
| CN110882865A (en) * | 2019-11-20 | 2020-03-17 | 江苏博迁新材料股份有限公司 | A deep submicron powder atmosphere classification device |
| CN214077294U (en) * | 2020-12-23 | 2021-08-31 | 江苏博迁新材料股份有限公司 | Gas-phase powder grading equipment |
-
2020
- 2020-12-23 CN CN202023133247.0U patent/CN214077294U/en active Active
-
2021
- 2021-09-23 WO PCT/CN2021/119879 patent/WO2022134687A1/en active Application Filing
- 2021-12-16 TW TW110214979U patent/TWM625640U/en unknown
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022134687A1 (en) * | 2020-12-23 | 2022-06-30 | 江苏博迁新材料股份有限公司 | Gas-phase powder grading device |
| CN115532598A (en) * | 2022-10-09 | 2022-12-30 | 连云港华威硅微粉有限公司 | A kind of silica powder classifying treatment device |
Also Published As
| Publication number | Publication date |
|---|---|
| TWM625640U (en) | 2022-04-11 |
| WO2022134687A1 (en) | 2022-06-30 |
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