CN2423027Y - Collision type fluidized bed jet mill - Google Patents
Collision type fluidized bed jet mill Download PDFInfo
- Publication number
- CN2423027Y CN2423027Y CN 00206495 CN00206495U CN2423027Y CN 2423027 Y CN2423027 Y CN 2423027Y CN 00206495 CN00206495 CN 00206495 CN 00206495 U CN00206495 U CN 00206495U CN 2423027 Y CN2423027 Y CN 2423027Y
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- jet mill
- cavity
- fluidized bed
- collision type
- type fluidized
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- 239000000843 powder Substances 0.000 claims description 14
- 230000003028 elevating effect Effects 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 4
- 229910003460 diamond Inorganic materials 0.000 claims 1
- 239000010432 diamond Substances 0.000 claims 1
- 239000000463 material Substances 0.000 abstract description 20
- 238000012423 maintenance Methods 0.000 abstract description 2
- 239000012530 fluid Substances 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 16
- 239000003595 mist Substances 0.000 description 11
- 238000010298 pulverizing process Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 4
- 238000003801 milling Methods 0.000 description 4
- 238000000227 grinding Methods 0.000 description 3
- 239000012716 precipitator Substances 0.000 description 3
- 230000001174 ascending effect Effects 0.000 description 2
- 238000005243 fluidization Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000012476 oxidizable substance Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- Disintegrating Or Milling (AREA)
Abstract
The utility model discloses a clash formula fluidized bed jet mill for processing micron order miropowder, it includes fluid energy mill, it smashes the chamber wall and is gone up two relative nozzles, cavity inner wall's cross section has the symmetry evagination along the inner chamber size of nozzle air flow central line and the shape that the ratio of the biggest inner chamber size of perpendicular air flow central line is 1.5 ~ 2.5: 1, the interval of nozzle mouth is that the nozzle throat leads to the footpath be 50 ~ 70 times, this jet mill still includes the seat frame of putting rubbing crusher and relevant equipment in the jet mill together, this jet mill can carry out shredding to a small amount of materials, small has, and convenient maintenance is a miniature crushing apparatus suitable for the laboratory.
Description
The utility model relates to a kind of airflow milling of processing the micron order micro mist, especially a kind of collision type fluidized bed jet mill.
The collision type fluidized bed jet mill is a kind of disintegrating apparatus that utilizes air-flow material to be pulverized, is processed into the micron order micro mist.At present, it is by industrial and mining enterprises' extensive use.This class collision type fluidized bed jet mill structurally comprises feeding device, airslide disintegrating mill, and the turbine clasfficiator, powder collector and dust-precipitator are formed, and Chinese patent ZL98 2 33495.8 has disclosed the structure of this kind equipment.Its operation principle is: the gases at high pressure that produced by air compressor machine are accelerated into supersonic airstream by the nozzle in the airslide disintegrating mill, injecting head-on collision and pulverizing the district, make the fluidization of material that enters pulverizer from feeding device.Material is accelerated under the huge kinetic energy effect of high velocity air, in each nozzle intersection impact takes place, thereby reaches the pulverizing purpose.Pulverized material is transported to graded region with air-flow, by the turbine clasfficiator powder material is carried out classification in graded region, and the micro mist after the classification is collected by gatherer, and tail gas is discharged into atmosphere after dust-precipitator filters.
This class collision type fluidized bed jet mill, pulverizing cavity in its pulverizer is cylindrical, minimum model airflow milling diameter is 125 millimeters, two to four nozzles are along face of cylinder circumference uniform distribution, a conical hopper that the degree of depth is bigger is arranged in the bottom of crushing chamber, thereby the volume of crushing chamber is big, can't has only tens grams or tens gram materials to carry out the extraction of ultra-fine grinding and micro mist universities and colleges, R﹠D institution and plant laboratory, the volume of complete equipment is big, can not use in the scientific experiment chamber.
Once the someone attempted a whole set of airflow milling microminiaturization, yet to only tens grams or tens gram raw material pulverizing evidence yield are very low, no practical value.
At the problems referred to above, the purpose of this utility model provides a kind of compact conformation that can carry out effective ultra-fine grinding processing to tens grams or tens gram materials, the collision type fluidized bed jet mill that volume is little.
The utility model is to realize like this, the collision type fluidized bed jet mill that is provided, it comprises air accumulator, airslide disintegrating mill, powder collector constitutes, described airslide disintegrating mill is by crushing chamber, adapter cavity, classification chamber and motor are formed, described classification chamber comprises a turbine clasfficiator that is connected with electric-motor drive, described crushing chamber has a cavity, two nozzles that divide are relatively at a certain distance arranged on the cavity inner wall, the ratio of inner cavity size and the maximum inner cavity size of perpendicular nozzle air-flow centerline direction that the cross section of described cavity inner wall has a suitable nozzle air current centerline direction of symmetrical evagination is 1.5～2.5: 1 convex shape, and the spacing of described two jet holes is 50～70 times of nozzle venturi effective drift diameter; This collision type fluidized bed jet mill also comprises a mounting that described air accumulator, airslide disintegrating mill, powder collector are fitted together.
The cross section of described cavity inner wall is near oval, or waist shape or rhombus; Described cavity bottom surface has following spill, has a through hole and the sealing plug that can seal through hole on concave bottom surfaces.
Described mounting comprises a base, and a column is arranged on the base, and the cross-arm that the top of column has its two ends to be connected with described motor and described classification cavity shell respectively has a rotating elevating mechanism between described cross-arm and the column top.
Because the inner cavity size that the cross section of crushing chamber cavity inner wall has a suitable nozzle air current centerline direction and ratio perpendicular to the maximum inner cavity size of nozzle air current center line are 1.5～2.5: 1 symmetrical convex shape, two relative jet hole spacings are 50～70 times of nozzle venturi effective drift diameter, thereby can make material accelerate to maximal rate with the jet-stream wind of nozzle, the district obtains best crushing effect in head-on collision; The shape of cavity inner wall cross section is corresponding with the air flow stream shape that penetrates from nozzle simultaneously, make not active dead-space volume minimizing in the cavity, improved the micro mist yield of pulverizing, hit the formula fluidized bed jet mill when existing and can not pulverize the problem of processing a small amount of material thereby overcome; Again because a mounting that all devices, equipment are fitted together is set, can make the complete equipment compact conformation, volume-diminished is convenient to move, care and maintenance, has solved the problem that presses for the ultra-fine grinding equipment that a kind of scientific research uses of universities and colleges, R﹠D institution and plant laboratory.
Below in conjunction with drawings and Examples, the utility model is described in further detail.
Fig. 1 is the engineering structure flow chart of a kind of collision type fluidized bed jet mill of the utility model.
Fig. 2 is the vertical profile enlarged drawing of airslide disintegrating mill structure.
Fig. 3 be Fig. 2 along I-I to cutaway view.
Fig. 4 is a kind of collision type fluidized bed jet mill overall structure outline drawing.
Fig. 1 to Fig. 4 shows the embodiment that adopts a kind of collision type fluidized bed jet mill of the present utility model.
As shown in Figure 1, the collision type fluidized bed jet mill comprises air accumulator 2, gas circuit control device 3, and airslide disintegrating mill 4, powder collector 5 constitutes.
As shown in Figure 2, airslide disintegrating mill comprises a crushing chamber 7, adapter cavity 8, and classification chamber 9 and motor 25 are formed.A turbine clasfficiator 16 is arranged in the classification chamber 9, and it and motor 25 adopt belt 26 to be in transmission connection.The 16 vertical installations of turbine clasfficiator have a powder output channel 17 in the grading wheel bottom of turbine clasfficiator 16; Crushing chamber 7 has a cylindricality cavity 18, two relative nozzles 19 are housed on the cavity inner wall, the ratio of inner cavity size and the inner cavity size of perpendicular nozzle air-flow centerline direction maximum that the cross section of cavity 18 inwalls has suitable nozzle 19 air-flow centerline directions of symmetrical evagination is 1.5～2.5: 1 shape, the shape of this cross section can be nearly ellipse, also can be waist shape or rhombus, present embodiment Fig. 3 shows nearly elliptical shape (see figure 3), among the figure, along the inner cavity size A of nozzle 19 air-flow centerline directions is 80～100 millimeters, is 40～60 millimeters perpendicular to the size B of the maximum inner chamber of air-flow center line; Nozzle 19 adopts Laval nozzle, and the spacing of two relative jet hole is 50～70 times of nozzle venturi effective drift diameter, and the effective diameter c that there is shown the nozzle venturi is 2 millimeters of φ 1～φ; In the bottom of cavity 18 a recessed bottom surface 20 is arranged, there is the through hole 23 of a screw-type at the middle part of concave bottom surfaces, and this through hole 23 can seal this through hole by an associated sealing gasket 21 and a sealing plug 22 (bolt).
In order to make classification chamber 9 obtain reasonable grading effect, reduce the wearing and tearing of grading wheel, avoid adopting electric main shaft, the utility model suitably strengthens housing 15 internal diameters in classification chamber 9, and classification cavity shell 15 inside diameter D of the present utility model are 120 millimeters of φ 100 1 φ; Adapter cavity 8 between classification chamber 9 and crushing chamber 7 adopts up big and down small tubaeform cylindrical shell.
As shown in Figure 2, be connected with a feeding device 10 on the classification cavity shell 15 of airslide disintegrating mill 4, this feeding device 10 is made up of hopper 13, ball valve 11, the anti-blowpipe 12 that links to each other with the gas circuit control device and material efferent duct 14.When opening ball valve 11, the pressure in the anti-blowpipe 12 are slightly larger than classification chamber 9 internal pressures, and the material in the hopper just can enter smoothly in the crushing chamber 7 in the airslide disintegrating mill and pulverize processing.
By Fig. 1, Fig. 4 as can be known, powder collector 5 is made of cyclone separator and receiving flask 26, it will be undertaken separating of gas and micro mist by the primary mixture that powder output channel 17 is sent, micro mist after the separation is collected by receiving flask 26, is discharged into atmosphere after the dust-precipitator filtration of tail gas by cloth-bag type.
As shown in Figure 4, this airflow milling also comprises one with above-mentioned air accumulator 2, airslide disintegrating mill 4, the mounting 28 that powder collector 5 and gas circuit control device 3 are fitted together, mounting comprises a base 27, a column 29 is vertically upward arranged, the cross-arm 33 that has its two ends to be connected with classification cavity shell 15 and motor 24 respectively at column 29 tops on the base.This cross-arm has shape of hood, between cross-arm 33 and column 29 tops, a rotating elevating mechanism is arranged, this rotating elevating mechanism has the screw thread 32 on the face of cylinder, column 29 top, 32 on screw thread is gone up to be enclosed within versatilely on the screw thread 32 and with adjustable hand wheel 30 end faces by 30, one of the adjustable hand wheels of forming screw thread pair and adapter sleeve 31 that cross-arm is fixed together and is contacted.By Fig. 2, Fig. 4 as can be known, behind the connecting bolt 24 outside turning on classification chamber 9 housings 15, rotate adjustable hand wheel 30, cross-arm 32 drives motor 24 and 15 risings of classification cavity shell that its two ends link to each other respectively, then cross bar 33 is changeed an angle around column 29, make pulverizer 4 uncovered, just can be to grader, especially crushing chamber cleans and maintains, and is convenient especially.Through hole 23 among Fig. 2 on crushing chamber 7 bottom surfaces 20 is used for waste liquid after the crushing chamber cleaning and defective material discharging.
As shown in Figure 1, the used source of the gas 1 of collision type fluidized bed jet mill can be with 0.8/10 type air compressor machine or gas cylinder.Adopt the gas cylinder source of the gas of inert gas also can carry out the pulverizing processing of readily oxidizable substance material.
During work, pass through two Laval nozzles of installing relatively 19 of airslide disintegrating mill by the gas of air compressor machine or 1 generation of gas cylinder source of the gas, being accelerated into supersonic airstream injects in the head-on collision pulverizing district, make the fluidization of material that enters crushing chamber 7 by feeding device 10, material is accelerated under high velocity air, impact takes place in the intersections at two bundle air-flows, because the diffusance of two air flow stream is corresponding with nearly oval-shaped cavity shape, and the pulverizing that all can be accelerated and clash of cavity 18 interior most of materials.Pulverized material is transported to classification chamber 9 with air-flow, because rotating at a high speed, the turbine of turbine clasfficiator 16 forms corresponding rotational flow field, the centrifugal force that the material of greater particle size is subjected in the ascending air is bigger, be thrown toward housing 15 inwalls and to fall to crushing chamber 7 relaying continued powders broken, and the micro mist in the ascending air is little because of centrifugal force, then from turbo blade, pass and enter powder output channel 17, and reach classification.Micro mist enters powder collector 5 with air-flow by output channel 17, under the cyclone separator effect, gas is separated with micro mist, and the micro mist after the separation is collected by receiving flask 26, and tail gas is discharged into atmosphere after bagroom 6 filters.
Because crushing chamber is rational in infrastructure, the complete equipment volume has only 600 * 500 * 800 millimeters, can be placed on desk or the experimental bench tens grams or tens gram materials are carried out super fine processing, thereby be a kind of universities and colleges that are specially adapted to, the super fine disintegrating apparatus of R﹠D institution and plant laboratory.
Claims (5)
1, a kind of collision type fluidized bed jet mill, it comprises air accumulator, airslide disintegrating mill, powder collector constitutes, described airslide disintegrating mill is by the air-flow crushing chamber, adapter cavity, classification chamber and motor are formed, comprise a turbine clasfficiator that connects by electric-motor drive in the described classification chamber, it is characterized in that described crushing chamber has a cavity, two nozzles that relatively also divide at a certain distance are housed on the cavity wall, inner cavity size and the ratio perpendicular to the maximum inner cavity size of nozzle air current centerline direction that the cross section of described cavity inner wall has a suitable nozzle air current centerline direction of symmetrical evagination is 1.5～2.5: 1 shape, and described two jet hole spacings are 50～70 times of nozzle venturi effective drift diameter; This collision type fluidized bed jet mill also comprises a mounting that described air accumulator, airslide disintegrating mill, powder collection are fitted together.
2, collision type fluidized bed jet mill according to claim 1, the cross section that it is characterized in that cavity inner wall is a nearly ellipse garden shape, it is 80～100 millimeters along inner cavity size of nozzle air current centerline direction, is 40～60 millimeters perpendicular to the maximum inner cavity size of nozzle air current centerline direction.
3, collision type fluidized bed jet mill according to claim 1, the cross section that it is characterized in that described cavity inner wall is nearly diamond shape.
4, collision type fluidized bed jet mill according to claim 1 and 2, it is characterized in that described mounting comprises a base, a column is arranged on the base, the cross-arm that the top of column has its two ends to connect with described motor and described classification cavity shell respectively has a relatively turnable elevating mechanism between described cross-arm and the column top.
5, collision type fluidized bed jet mill according to claim 2 is characterized in that the bottom surface of described crushing chamber cavity has following spill, has a through hole and the sealing plug that can seal through hole on concave bottom surfaces.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00206495 CN2423027Y (en) | 2000-03-17 | 2000-03-17 | Collision type fluidized bed jet mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00206495 CN2423027Y (en) | 2000-03-17 | 2000-03-17 | Collision type fluidized bed jet mill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2423027Y true CN2423027Y (en) | 2001-03-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00206495 Expired - Lifetime CN2423027Y (en) | 2000-03-17 | 2000-03-17 | Collision type fluidized bed jet mill |
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| Country | Link |
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| CN (1) | CN2423027Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101642811B (en) * | 2009-06-29 | 2011-01-05 | 金堆城钼业股份有限公司 | Preparation method of molybdenum product with heavy single weight |
| CN101648154B (en) * | 2009-09-08 | 2011-06-08 | 武汉理工大学 | Airflow mill of multifunctional fluidized bed |
| CN103143424A (en) * | 2013-03-18 | 2013-06-12 | 潍坊埃尔派粉体技术设备有限公司 | Fluidized bed type air flow crusher for online cleaning and online sterilization |
| CN103706449A (en) * | 2013-12-27 | 2014-04-09 | 北京印刷学院 | Miniature negative pressure jet mill having crushing cavity with ellipsoidal structure |
| CN105381852A (en) * | 2015-12-25 | 2016-03-09 | 诺泽流体科技(上海)有限公司 | Online cleaning device used in disk pulverizing cavity and cleaning method thereof |
| CN106423486A (en) * | 2016-11-10 | 2017-02-22 | 佛山市利德嘉陶瓷制釉有限公司 | Multi-split fluidized bed airflow mill |
| CN110652942A (en) * | 2019-11-13 | 2020-01-07 | 中国空气动力研究与发展中心高速空气动力研究所 | Collision type supersonic air flow acceleration low-heat solid phase circulation reaction device |
-
2000
- 2000-03-17 CN CN 00206495 patent/CN2423027Y/en not_active Expired - Lifetime
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101642811B (en) * | 2009-06-29 | 2011-01-05 | 金堆城钼业股份有限公司 | Preparation method of molybdenum product with heavy single weight |
| CN101648154B (en) * | 2009-09-08 | 2011-06-08 | 武汉理工大学 | Airflow mill of multifunctional fluidized bed |
| CN103143424A (en) * | 2013-03-18 | 2013-06-12 | 潍坊埃尔派粉体技术设备有限公司 | Fluidized bed type air flow crusher for online cleaning and online sterilization |
| CN103143424B (en) * | 2013-03-18 | 2015-02-25 | 潍坊埃尔派粉体技术设备有限公司 | Fluidized bed type air flow crusher for online cleaning and online sterilization |
| CN103706449A (en) * | 2013-12-27 | 2014-04-09 | 北京印刷学院 | Miniature negative pressure jet mill having crushing cavity with ellipsoidal structure |
| CN103706449B (en) * | 2013-12-27 | 2015-09-02 | 北京印刷学院 | A kind of small negative pressure airflow milling with ellipsoid structure crushing chamber |
| CN105381852A (en) * | 2015-12-25 | 2016-03-09 | 诺泽流体科技(上海)有限公司 | Online cleaning device used in disk pulverizing cavity and cleaning method thereof |
| CN105381852B (en) * | 2015-12-25 | 2018-03-27 | 诺泽流体科技(上海)有限公司 | One kind is used for on-line cleaning device and its cleaning method in disk crushing chamber |
| CN106423486A (en) * | 2016-11-10 | 2017-02-22 | 佛山市利德嘉陶瓷制釉有限公司 | Multi-split fluidized bed airflow mill |
| CN110652942A (en) * | 2019-11-13 | 2020-01-07 | 中国空气动力研究与发展中心高速空气动力研究所 | Collision type supersonic air flow acceleration low-heat solid phase circulation reaction device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20010314 |