CN2177528Y - Fluidized magnetic field separator - Google Patents
Fluidized magnetic field separator Download PDFInfo
- Publication number
- CN2177528Y CN2177528Y CN 93247828 CN93247828U CN2177528Y CN 2177528 Y CN2177528 Y CN 2177528Y CN 93247828 CN93247828 CN 93247828 CN 93247828 U CN93247828 U CN 93247828U CN 2177528 Y CN2177528 Y CN 2177528Y
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- bed
- magnetic field
- fluid bed
- magnetic
- distribution plate
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Abstract
The utility model relates to a fluidized magnetic field separator, comprising a movable fluidized-bed (1) and a feeder (2). The utility model is characterized in that the lower part of the fluidized-bed (1) is provided with an inverted cone-shaped distribution plate. The upper end of the cone-shaped distribution plate is connected with the inner wall of the fluidized-bed (1). The lower end of the cone-shaped distribution plate is connected with a descent pipe (6). The descent pipe (6) is provided with a discharge valve (7) and a bottom discharge mouth (8). The surface of the cone-shaped distribution plate is provided with a plurality of small holes (9) which are uniform. A magnetic coil group (10) is sheathed on the outer of the lower part of the bed body of the fluidized-bed (1). The utility model has advantages of low pressure drop, low energy consumption, high separating efficiency and continuous production, etc.
Description
The utility model relates to a kind of fluidization magnetic field separator, in particular for the separator of magnetic and non-magnetic particle mixture.
Separate magnetic and non-magnetic particle mixture except can using screening, gravitational settling, centrifugation, existing many mechanical magnetic separation seperators, its uses magnet to hold magnetic-particle reaching the separation purpose, and then makes magnetic-particle disengaging magnet.This method is inhaled in the magnetic process and can be carried secretly again because the magnet area is limited, and separative efficiency can be too not high, adds to make magnetic-particle break away from magnet difficulty relatively again at last, so that this device is not suitable for being used in treating capacity is big and need quantity-produced factory.
The fluidized classifying device be utilize different grain size and density in the mixture particle under the fluidizing gas effect because stressed difference can cause the different distributions along the height of bed, and produce classification.It has been used to sort asbestos (Chinese patent CN 1060236A), dry type coal separation aspects such as (Chinese patent CN 87101056A).But some magnetic and non-magnetic mixed thing, for example: river sand and iron sand, though density differs greatly, river sand particle is big, the iron sand particle is little, and is bad with general fluidized-bed separating effect, can't enable.
The purpose of this utility model provides big, the production continuously of a kind for the treatment of capacity, and has low pressure drop, low energy consumption characteristics, the fluidization magnetic field separator that separative efficiency is high.
The concrete solution of the utility model is:
A kind of fluidization magnetic field separator, comprise mobile fluid bed (1), feeder (2), mobile fluid bed (1) middle part links to each other with feeder (2), top has top discharge mouth (3), air intlet (4) is arranged at the bottom, it is characterized in that: fluid bed (1) is provided with a back taper distribution grid (5) in the bottom; The upper end of conical distribution plate (5) links to each other with the inwall of fluid bed (1), and its lower end and down-comer (6) link into an integrated entity; Down-comer (6) has discharging valve (7), feed opening (8); Evenly have a plurality of apertures (9) on conical distribution plate (5) conical surface; Fluid bed (1) bed body is with magnetic coil group (10) outside the bottom.The angle of back taper distribution grid (5) is: 25 °～45 °, percent opening is: 0.5～2%.Magnetic coil group (10) is to be composed in series by a plurality of annular magnetospheres.
The effect first of conical distribution plate enters in the fluid bed air that blasts uniformly, plays the distribution grid effect.It two is to make material enter down-comer along cone, reaches the blanking purpose.
The effect of magnetic coil is that tiny magnetic-particle is attracted each other under magneticaction is agglomerating, is easy to separate with nonmagnetic bulky grain, thereby has improved separating effect.
Operation principle of the present utility model is as follows:
The main body of separator is fluid bed (1), mixed material enters the middle part of bed by screw feeder (2), compound particles is subjected to the effect of fluidization air, in bed, be the bubbling fluidization shape, and classification gradually, light and big non-magnetic material moves up, discharge by last light thing discharging opening (3), heavy and little magnetic material is affected by magnetic fields coalescent agglomerating in lower bed, move down, the lower pyramid mouth through back taper distribution grid (5) enters down-comer (6), again by after discharging valve (7) the control flow rate, by weight discharging opening (8) discharge down.The air of fluidisation enters the air intlet (4) of bed bottom after by little air compressor machine drying, metering, upwards after evenly distributing, the aperture of conical distribution plate (5) enters bed then, because separation process is controlled at the bubbling fluidization stage near minimum fluidization velocity, top discharge mouth (3) is arranged again at the top of bed, so carrying secretly seldom of powder, air can directly enter atmosphere (as shown in Figure 1).
This device is special to be conical distribution plate (5) in general fluid bed, its detailed structure as shown in Figure 2, the distribution grid of back taper (5) top links to each other with fluid bed (1), the bottom links to each other with down-comer (6), its angle (α) is generally: 25 °～45 ° (must less than the stocking angle of material), it makes granule materials can easily slide into down-comer down, distribution grid has many apertures (9) (opening diameter is decided according to the solid particle diameter) again, these apertures can evenly distribute when the air that enters the bed bottom is upwards flowed, thereby make an endoparticle be the bubbling fluidization state.
Be to strengthen separating effect, the special annular magnetosphere group (10) of having added of this device, the bottom one mixed material import that it is positioned at fluid bed is with down to conical distribution plate top, and the magnetosphere group is connected in series by several annular magnetospheres and forms.Magnetosphere is connecting the alternating current-direct current control system, and when electric current was 0～3A, corresponding magnetic field intensity was 0～81 Gauss.Each point place maximum magnetic flux sound intensity difference is 0.3 Gauss in the loop coil, can be considered uniform magnetic field.The intensity in magnetic field is controlled by electric current during use, and the magnetic field intensity that various magnetic materials need apply decides according to its magnetic power, but generally all is 0.1～1 ampere (voltage is: 0.1～20 volt), so the electric energy that consumes is few.Fig. 3 is that iron sand and yellow ground system are under different magnetic field intensity, the volumetric concentration distribution curve of measuring along height of bed iron sand, can be clear that from figure magnetic field intensity is when zero is increased to 14 Gausses (electric current is 0.4A), top discharging iron content originally is reduced to 3.59% from 20%, can rise to 96.56% by 76.11% and the bottom discharging contains concentration of iron, thereby improve separative efficiency significantly.
Advantage of the present utility model and good effect are as follows:
(1) the utility model is owing to adopted a centre to advance compound, upper and lowerly go out separation of material,, there is the fluid bed of conical distribution plate at the bed end, and the structure of peripheral one group of magnetosphere, make full use of the advantage of high throughput continuous production that fluidization separates and low pressure drop, low energy consumption and magnetic field to the effect of magnetic material, improved separative efficiency.
(2) the utility model plays the distribution grid effect owing to adopted the conical distribution plate first that the air that blasts is entered in the fluid bed uniformly.It two is to make material enter down-comer along cone, reaches the blanking purpose.
(3) the utility model is agglomerating owing to having adopted magnetic coil that tiny magnetic-particle is attracted each other under magneticaction, is easy to separate with nonmagnetic bulky grain, thereby has improved separating effect.
Fig. 1 always schemes for the separator structural representation of fluidization magnetic field.
Fig. 2 is the generalized section of conical distribution plate.
Fig. 3 be in iron sand and the yellow ground system when change of magnetic field strength, along height of bed iron content (volume %) distribution map.
Below in conjunction with accompanying drawing the utility model is further described.
A kind of fluidized magnetic field separator, comprise mobile fluid bed (1), feeder (2), mobile fluid bed (1) middle part links to each other with feeder (2), there is air intlet (4) on top with top discharge mouth (3), bottom, it is characterized in that: fluid bed (1) arranges a back taper distribution grid (5) in the bottom; The inwall of the upper end of conical distribution plate (5) and fluid bed (1) welds mutually, and its lower end and down-comer (6) are integrally welded; Down-comer (6) is with discharge valve (7), feed opening (8); Evenly have a plurality of apertures (9) on conical distribution plate (5) conical surface; Fluid bed (1) bed body bottom overcoat has magnetic coil group (10). The angle of back taper distribution grid (5) is: 30 °, percent opening is: 1%. Magnetic coil group (10) is to be composed in series by a plurality of annular magnetospheres.
Illustrate with two embodiment below:
＜embodiment 1 〉
Iron sand and yellow ground system
1. separator
Fluid bed internal diameter=36mm
Fluid bed height overall 650mm, top height of bed 180mm, bottom height of bed 180mm
Conical distribution plate angle=40 degree is bored high 30mm, lower diameter 14mm, opening diameter=0.3mm
Each magnetosphere external diameter=120mm of magnetosphere size, internal diameter=60mm, high 22mm, by 5mm flat type copper wire coiled, five are one group and are connected in series.
2. fluidizing agent: air, normal temperature, 0.3atm, flow rate 0.60NM/hr
3. separating medium: yellow ground and iron sand
Characteristic yellow ground iron sand
Density (g/cm) 2.63 7.597
Grain＞0.4mm 0.77%
Degree 0.315～0.4mm 77.65%
Divide 0.2～0.315mm 16.65% 0.93%
Cloth 0.1～0.2mm 3.24% 95.27%
0.05～0.1mm 1.69％ 3.80％
Particle mean size mm 0.3073 0.1450
Voidage Emf 0.507 0.502
4. various different proportioning compound separating resultings
Yellow ground is than iron sand (volume ratio)
Mixture ratio (yellow ground: 2:1 1:1 1:2 iron sand)
Divide charging iron-holder (volume) 33.3% 50.0% 66.7%
From feed rate (ml/s) 1.172 1.096 1.166
Bar top discharging speed (ml/s) 0.784 0.573 0.400
Part bottom discharging speed (ml/s) 0.388 0.523 0.766
Magnetic field intensity (Gs) 14.0 14.0 15.4
Separate top discharging iron content (volume) 1.87% 3.59% 19.01%
Efficient bottom discharging iron content (volume) 95.12% ※ 96.56% 91.12% ※ ※ ※ material balances:
Charging (iron content) 1.166 * 2/3=0.777(ml/s)
The ※ ※ material balance of discharging (iron content) 0.40 * 19.01%+0.766 * 91.22%=0.774(ml/s):
Charging (iron content) 1.172 * 1/3=0.3907(ml/s)
Discharging (iron content) 0.784 * 1.87%+0.388 * 95.12%=0.3838(ml/s)
＜embodiment 2 〉
Magnetic powder and pulverized coal system-extremely difficult piece-rate system
1. separator: with embodiment 1.
2. fluidizing agent: air, 20 ℃, 0.3atm, flow rate 0.21～0.22NM/hr
3. separating medium: Iron Ore Powder (containing Armco magnetic iron 48.4%) coal dust
The Iron Ore Powder coal dust
Grain 0.2～0.315mm 86.35%
Degree 0.1～0.2mm 11.12%
Divide 0.05～0.1mm 93.58% 2.28%
Cloth＜0.05mm 6.42% 0.25%
Particle mean size d mm 0.072 0.2248
Voidage Emf 0.6158 0.6369
4. separating resulting
The content of iron (volume) 50% in the incoming mixture
Feed rate 0.7112 ml/s 0.7064 ml/s
Top discharging speed 0.3515 ml/s 0.3498 ml/s
Bottom discharging speed 0.3597 ml/s 0.3566 ml/s
Magnetic field intensity 28.4 Gs 0.0 Gs
Top discharging iron-holder 9.3% (volume) 43.2% (volume)
Bottom discharging iron-holder 87.2% (volume) 56.4% (volume)
Claims (3)
1, a kind of fluidization magnetic field separator, comprise mobile fluid bed (1), feeder (2), mobile fluid bed (1) middle part links to each other with feeder (2), top has top discharge mouth (3), air intlet (4) is arranged at the bottom, it is characterized in that: a back taper distribution grid (5) is set in fluid bed (1) bottom, the upper end of conical distribution plate (5) links to each other with the inwall of fluid bed (1), and its lower end and down-comer (6) link into an integrated entity; Down-comer (6) has discharging valve (7), lower discharge port (8); Evenly have a plurality of apertures (9) on conical distribution plate (5) conical surface; Fluid bed (1) bed body is with magnetic coil group (10) outside the bottom.
2, a kind of fluidization according to claim 1 magnetic field separator, it is characterized in that: the angle of back taper distribution grid (5) is: 25 °～45 °, percent opening is: 0.5～2%.
3, a kind of fluidization according to claim 1 magnetic field separator, it is characterized in that: magnetic coil group (10) is to be composed in series by a plurality of annular magnetospheres.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93247828 CN2177528Y (en) | 1993-12-20 | 1993-12-20 | Fluidized magnetic field separator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93247828 CN2177528Y (en) | 1993-12-20 | 1993-12-20 | Fluidized magnetic field separator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2177528Y true CN2177528Y (en) | 1994-09-21 |
Family
ID=33820143
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93247828 Expired - Fee Related CN2177528Y (en) | 1993-12-20 | 1993-12-20 | Fluidized magnetic field separator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2177528Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102120194A (en) * | 2010-01-08 | 2011-07-13 | 中国科学院过程工程研究所 | Magnetic-particle in-situ separation device for magnetic stabilization fluidized bed |
| CN106111320A (en) * | 2016-07-13 | 2016-11-16 | 无锡派乐科技有限公司 | A kind of can clear up the horizontal piping installation of magnetic rubbish in passageway |
| CN107838029A (en) * | 2016-09-21 | 2018-03-27 | 中国矿业大学 | A kind of gas-solid loop flow magnetofluidization sorting unit |
| CN108588404A (en) * | 2018-05-24 | 2018-09-28 | 东北大学 | A kind of fluosolids roasting technique of processing iron ore |
| CN108677003A (en) * | 2018-05-24 | 2018-10-19 | 东北大学 | A kind of fluidisation state calciner |
| CN117599953A (en) * | 2024-01-24 | 2024-02-27 | 山西安仑化工有限公司 | Magnetic carbon black powder precise grading device and grading method |
-
1993
- 1993-12-20 CN CN 93247828 patent/CN2177528Y/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102120194A (en) * | 2010-01-08 | 2011-07-13 | 中国科学院过程工程研究所 | Magnetic-particle in-situ separation device for magnetic stabilization fluidized bed |
| CN102120194B (en) * | 2010-01-08 | 2013-01-23 | 中国科学院过程工程研究所 | Magnetic-particle in-situ separation device for magnetic stabilization fluidized bed |
| CN106111320A (en) * | 2016-07-13 | 2016-11-16 | 无锡派乐科技有限公司 | A kind of can clear up the horizontal piping installation of magnetic rubbish in passageway |
| CN107838029A (en) * | 2016-09-21 | 2018-03-27 | 中国矿业大学 | A kind of gas-solid loop flow magnetofluidization sorting unit |
| CN108588404A (en) * | 2018-05-24 | 2018-09-28 | 东北大学 | A kind of fluosolids roasting technique of processing iron ore |
| CN108677003A (en) * | 2018-05-24 | 2018-10-19 | 东北大学 | A kind of fluidisation state calciner |
| CN108677003B (en) * | 2018-05-24 | 2019-10-01 | 东北大学 | A kind of fluidisation state calciner |
| CN108588404B (en) * | 2018-05-24 | 2019-10-01 | 东北大学 | A kind of fluosolids roasting technique handling iron ore |
| CN117599953A (en) * | 2024-01-24 | 2024-02-27 | 山西安仑化工有限公司 | Magnetic carbon black powder precise grading device and grading method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |