CN104162482A - Deironing and grading method for powder body - Google Patents
Deironing and grading method for powder body Download PDFInfo
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- CN104162482A CN104162482A CN201410390873.8A CN201410390873A CN104162482A CN 104162482 A CN104162482 A CN 104162482A CN 201410390873 A CN201410390873 A CN 201410390873A CN 104162482 A CN104162482 A CN 104162482A
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Abstract
The invention discloses a deironing and grading method for a powder body. The method comprises the steps of pouring mixed iron-containing powder body to be treated into a stock bin, enabling the powder body to fall onto a material lifting device through a material inlet, performing fluidization treatment on the powder body under the action of gas flow, and enabling the powder body to move in a first deironing chamber along with the gas flow, wherein moving traces of iron particles in the powder body are changed or adsorbed on a magnetic piece to realize preliminary deironing; enabling the powder body subjected to preliminary deironing to continue to move forwards along with gas flow and enter a second deironing chamber, wherein part of the powder body and the non-adsorbed iron particles are commonly settled down under the action of gravity and are discharged through an ash discharging opening; enabling the other part of the powder body to continue to move forwards along with the gas flow to enter a powder body settling chamber in a machine body, wherein coarse powder in the gas flow is settled down under the action of gravity and is discharged from a coarse powder outlet; fine powder is discharged along with the gas flow through an air outlet formed in the right side of the machine body; and therefore, grading of the powder body is realized. According to the deironing and grading method for the powder body, the iron particles in the powder body are completely removed, so that thorough grading of the powder body is realized, and no iron particle exists in the coarse powder and the fine powder which are graded.
Description
Technical field
The present invention relates to a kind of powder deironing stage division, belong to the technical field of powder deironing and classification.
Background technology
As everyone knows, powder is made technique and is mostly adopted fragmentation and grinding, and in material, the existence of iron will have a strong impact on its effect broken and grinding, therefore generally all need first to carry out the pretreating process of deironing before the material of possibility containing metal iron is carried out to fragmentation or grinding; The deferrization process of lump material is relatively simple, and in powder, the removal of metallic particles has certain difficulty.Meanwhile, when being carried out to grinding, material often needs material to carry out different treatment process by the difference of its diameter, therefore need first powder to be carried out to classification processing.
At present, the powder that contains ferrous components is made in process, the process program of mostly taking deironing, classification to process respectively, existing method for removing iron is all to adopt magnet drum or tubular iron remover to carry out deironing, this method is difficult to iron all to collect; And existing hierarchical approaches is all to adopt screen cloth to carry out classification, not only classification is not thorough, also can produce and stick with paste sieve phenomenon.
Summary of the invention
The problem existing for above-mentioned prior art, the invention provides a kind of powder deironing stage division, the irony particle in powder all can be removed, and also can realize the classification of powder simultaneously, and classification is thorough, avoids occurring that classification is thorough, produces the phenomenon of sticking with paste sieve.
To achieve these goals, a kind of powder deironing of the present invention stage division, carries out according to the following steps:
(1) pour pending mixing into feed bin containing iron powder body, mixing in feed bin is containing on the raising material unit at iron powder body air inlet place in charging aperture drops down onto body, under the effect of air inlet place air-flow, mix containing iron powder body and be fluidized processing, and enter the first deironing house in body;
(2) powder after fluidisation with air-flow the passage in transit of the first deironing indoor moving is multiple can adsorb powder in the magnetic part of ferrous material, under the effect of the downward attraction of magnetic part, in mixed powder, the movement locus of irony particle is changed, or irony particle from mixed powder, be separated and be adsorbed on magnetic part, realize preliminary deironing;
(3) powder after preliminary deironing enters the second deironing house in body along with air-flow continues to move forward, and move in the second deironing house, in moving process, a part of powder and the irony particle common sedimentation under Action of Gravity Field not being adsorbed, and discharge through ash discharging hole; The powder expansion chamber that another part powder enters in body along with air-flow continues to move forward, and at powder sedimentation indoor moving;
(4) meal in air-flow declines in moving process in powder expansion chamber under Action of Gravity Field, and is discharged by meal discharging opening; Fine powder in air-flow is discharged from the air outlet on body right side with air-flow, then carries out separated and collected by external deduster, realizes the classification of powder.
Preferably, can by described step (3) in the second deironing house sedimentation and through ash discharging hole discharge a part of powder and the irony particle not being adsorbed again deliver in feed bin, carry out part circular treatment.
Preferably, in described step (2), the top of magnetic part is provided with conical plate, and in the time having powder to decline in the first deironing house, powder can drop down onto on conical plate, and falls along conical plate under Action of Gravity Field.
Preferably, the magnetic part in described step (2) is selected magnetic steel ingot.
Preferably, the adsorption capacity of the middle magnetic part of described step (2) is by switching on to realize to magnetic part; In the time that needs are collected irony particle, by magnetic part power-off, irony particle is come off from magnetic part, and discharge through row's iron mouth of the first deironing house lower end.
Compared with prior art, the present invention utilizes the effect of air-flow and magnetic part, first pending mixing is carried out to fluidization treatment containing iron powder body; Then, dust-contained airflow is introduced into the first deironing house, and under the effect of the magnetic attraction of magnetic part, the irony particle in air-flow is separated from powder, and is gathered on the magnetic part in the first deironing house; Then, dust-contained airflow continues to proceed to the second deironing house, in the second deironing house, and a part of powder and the irony particle common sedimentation under Action of Gravity Field not being adsorbed, and discharge through ash discharging hole, can guarantee does not have irony particle in the follow-up powder that enters powder expansion chamber; The powder expansion chamber that another part powder enters in body along with air-flow continues to move forward, the meal in air-flow is deposited in powder expansion chamber, and fine powder in air-flow is discharged from the air outlet on body right side with air-flow; Finally, can carry out deironing processing to mixing containing iron powder body, also can realize the classification of thick/fine powder body simultaneously, classification is thorough, avoids occurring that classification is thorough, produces the phenomenon of sticking with paste sieve.Meanwhile, separate the process of processing compare with existing powder deironing and classification, the efficiency of this method is high, and deironing is more thorough, and grading effect is better.In addition, can irony particle aggregation be come off on magnetic part or from magnetic part by repeatedly charging or power-off to magnetic part, and irony particle is fallen from Pai Tiekou, realize removal and collection to irony particle.And, the iron mixture of discharging through ash discharging hole can be delivered to feed bin again, carry out local circulation processing, realize the circular treatment of deironing, thereby the irony particle in powder all can have been removed and collected, also can realize the whole utilizations to powder.
Brief description of the drawings
Fig. 1 is process chart of the present invention;
Fig. 2 is the structural representation that the present invention uses powder deironing grader.
In figure: 1, air inlet, 2, charging aperture, 3, feed bin, 4, raising material unit, 5, magnetic part, 6, the first deironing house, 7, the second deironing house, 8, powder expansion chamber, 9, air outlet, 10, meal discharging opening, 11, ash discharging hole, 12, Pai Tiekou, 13, conical plate, 14, body.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the invention will be further described.
Embodiment 1:
This method can adopt powder deironing grader as shown in Figure 2 to realize, and this powder deironing grader comprises body 14, and the left upper end of described body 14 is provided with charging aperture 2, and described charging aperture 2 places are provided with for the feed bin 3 to the interior input powder of body 14; The left side of described body 14, the position on close top are provided with air inlet 1, raising material unit 4 is installed in described air inlet 1 below interior, that be positioned at charging aperture 2, raising material unit 4 can be caught the powder being fallen by charging aperture 2, and the air-flow of being come in by air inlet 1 can blow away the powder falling above it simultaneously; In described body 14, be provided with the first deironing house 6 and powder expansion chamber 8, the position of described body 14 bottoms, corresponding the first deironing house 6 is provided with row's iron mouth 12, and the position of described body 14 bottoms, corresponding powder expansion chamber 8 is provided with meal discharging opening 10; In described the first deironing house 6, be provided with the magnetic part 5 that several can attract ferrous material in powder; The right side of described body 14, the position on close top are provided with air outlet 9; Between described the first deironing house 6 and powder expansion chamber 8, be provided with the second deironing house 7, and be provided with ash discharging hole 11 in the position of described body 14 bottoms, corresponding the second deironing house 7.
Visible in conjunction with Fig. 1 and Fig. 2, while implementing this method, can first air inlet 1 be connected with air supply device, open merit air supply device; Pour pending mixing into feed bin 3 containing iron powder body again, the mixing in feed bin 3 drops down onto on raising material unit 4 through charging aperture 2 containing iron powder body, and is fluidized processing under the effect of the air-flow of coming in from air inlet 1, is introduced into the first deironing house 6 in body 14 simultaneously; Then, powder after fluidisation with air-flow in the way of the first deironing house 6 interior movements can through multiple can adsorb powder in the magnetic part 5 of ferrous material, under the effect of the downward magnetic attraction of magnetic part, irony particle in air-flow is separated from powder, and be adsorbed on the magnetic part 5 being gathered in the first deironing house 6, realize preliminary deironing; Then, powder after preliminary deironing continues to move forward the second deironing house 7 entering in body 14 along with air-flow, and move in the second deironing house, in moving process, part powder and the irony particle common sedimentation under Action of Gravity Field not being adsorbed, and discharge through ash discharging hole 11, because of the self gravitation effect of irony particle and the impact of magnetic part 5 above, can guarantee that irony particle is in the interior complete sedimentation of the second deironing house 7, guaranteeing does not have irony particle in the follow-up powder that enters powder expansion chamber 8; The powder expansion chamber 8 that another part powder enters in body 14 along with air-flow continues to move forward, and in the interior movement of powder expansion chamber 8; Meal in air-flow is deposited in powder expansion chamber 8 under Action of Gravity Field, and is discharged by meal discharging opening 10; Fine powder in air-flow is discharged from the air outlet 9 on body 14 right sides with air-flow, then carries out separated and collected by external deduster, realizes the classification of powder.
Finally, under the effect of air-flow and magnetic part 5, can complete preliminary deironing processing to pending mixing containing iron powder body the first deironing house 6 is interior; Relend and help Action of Gravity Field, make irony particle in the interior complete sedimentation of the second deironing house 7, and discharge through its below ash discharging hole 11, guaranteeing does not have irony particle in the follow-up powder that enters powder expansion chamber 8, has realized whole removals of irony particle.In addition, by the characteristic of air-flow and powder self gravitation whereabouts, can realize meal and fine powder classification powder expansion chamber 8 is interior to the powder after deironing, and the gravity of thick/fine powder body is different, therefore under the effect of self gravitation and air-flow, can realize the separation completely of thickness powder, make its classification more thorough.
Preferably, the part powder of discharging through ash discharging hole 11 and the irony particle not being adsorbed can be dropped into feed bin 3 again, it drops down onto on raising material unit 4 and enters the first deironing house 6, again carry out deironing processing ... carry out the local circulation processing of deironing, this circular treatment can all be removed the irony particle in dust-contained airflow on the one hand, irony particle is attracted by magnetic part 5 to the full extent, and be gathered in the first deironing house 6, improve de-ferrous effect, deironing is more thorough, and can realize the collection of whole irony particles; On the other hand, reduce the content that enters irony particle in the interior dust-contained airflow of powder expansion chamber 8, improved the interior coarse dispersion of powder expansion chamber 8 and discharged the purity of fine powder body air-flow from air outlet 9.
Wherein, can make on the magnetic part 5 of irony particle aggregation in the first deironing house 6 or come off from magnetic part 5 by the repeatedly energising to magnetic part 5 and power-off (magnetize and demagnetize), and irony particle is fallen from Pai Tiekou 12; By corresponding gathering-device being installed at Pai Tiekou 12, meal discharging opening 10 and air outlet 9, can realize the collection of irony particle, coarse dispersion and fine powder body, reliable, efficiency is high.
Above-mentioned magnetic part 5 can adopt the magnetic magnetic steel ingot of tool, magnetic steel ingot simple in structure, and cost is low, and magnetic is good, more easily realizes the absorption of irony particle.
While dropping on magnetic part 5 because of powder, can affect the ability that magnetic part 5 adsorbs irony particle, therefore also can conical plate be installed above described magnetic part 5, when under the effect of mixed powder at air-flow during through the first deironing house 6, if have part powder in the first interior whereabouts of deironing house 6, the setting of conical plate can make the powder that may drop on magnetic part 5 tops first drop down onto on conical plate, and fall along conical plate under the effect of gravity, avoid it to drop on the magnetic part 5 that is positioned at conical plate below and affect the adsorption capacity of magnetic part 5, the setting that is conical plate can be protected magnetic part 5, the ability that ensures its absorption irony particle is not affected.
Preferably, several magnetic parts 5 in described the first deironing house 6 are taked to be installed by height to the mode at the end from left to right, mixed powder under the effect of air-flow in the first deironing house 6, the second deironing house 7 or the interior movement of powder expansion chamber 8, mixed powder also can fall under Action of Gravity Field simultaneously, installs and the irony particle in powder fully can be adsorbed therefore adopt in this way.
Claims (5)
1. a powder deironing stage division, is characterized in that, carries out according to the following steps:
(1) pour pending mixing into feed bin containing iron powder body, mixing in feed bin is containing on the raising material unit at iron powder body air inlet place in charging aperture drops down onto body, under the effect of air inlet place air-flow, mix containing iron powder body and be fluidized processing, and enter the first deironing house in body;
(2) mixed powder after fluidisation with air-flow the passage in transit of the first deironing indoor moving is multiple can adsorb powder in the magnetic part of ferrous material, under the effect of the downward attraction of magnetic part, in mixed powder, the movement locus of irony particle is changed, or irony particle from mixed powder, be separated and be adsorbed on magnetic part, realize preliminary deironing;
(3) powder after preliminary deironing enters the second deironing house in body along with air-flow continues to move forward, and move in the second deironing house, in moving process, a part of powder and the irony particle common sedimentation under Action of Gravity Field not being adsorbed, and discharge through ash discharging hole; The powder expansion chamber that another part powder enters in body along with air-flow continues to move forward, and at powder sedimentation indoor moving;
(4) meal in air-flow declines in moving process in powder expansion chamber under Action of Gravity Field, and is discharged by meal discharging opening; Fine powder in air-flow is discharged from the air outlet on body right side with air-flow, then carries out separated and collected by external deduster, realizes the classification of powder.
2. a kind of powder deironing stage division according to claim 1, it is characterized in that, by in described step (3) in the second deironing house sedimentation and through ash discharging hole discharge a part of powder and the irony particle not being adsorbed again deliver in feed bin, in dropping down onto body, charging aperture on the raising material unit at air inlet place, carries out the circular treatment of deironing again.
3. a kind of powder deironing stage division according to claim 1 and 2, it is characterized in that, in described step (2), the top of magnetic part is provided with conical plate, in the time having powder to decline in the first deironing house, powder can drop down onto on conical plate, and falls along conical plate under Action of Gravity Field.
4. a kind of powder deironing stage division according to claim 1 and 2, is characterized in that, the magnetic part in described step (2) is selected magnetic steel ingot.
5. a kind of powder deironing stage division according to claim 1 and 2, is characterized in that, in described step (2), the adsorption capacity of magnetic part is by switching on to realize to magnetic part; In the time that needs adsorb irony particle, by magnetic part has been switched on; In the time that needs are collected irony particle, by magnetic part power-off, irony particle is come off from magnetic part, and discharge through row's iron mouth of the first deironing house lower end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410390873.8A CN104162482A (en) | 2014-08-08 | 2014-08-08 | Deironing and grading method for powder body |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410390873.8A CN104162482A (en) | 2014-08-08 | 2014-08-08 | Deironing and grading method for powder body |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105964395A (en) * | 2016-07-12 | 2016-09-28 | 陈勇 | Spray nozzle type ultrahigh-magnetism ore dressing device |
| CN106040429A (en) * | 2016-07-12 | 2016-10-26 | 陈勇 | Nozzle type ultrahigh magnetic mineral separation combination device |
| CN106669970A (en) * | 2017-02-27 | 2017-05-17 | 张舰方 | Dry processing equipment for dedusting ash recycling of sintering machine head of iron and steel plant |
| CN108136410A (en) * | 2016-03-24 | 2018-06-08 | 陈勇 | A kind of superelevation magnetic concentration device of magnetic iron ore |
| CN112495579A (en) * | 2020-12-08 | 2021-03-16 | 永丰县广润化工有限公司 | Nonmetal mineral impurity screening and subpackaging mechanism |
| CN113857049A (en) * | 2020-06-30 | 2021-12-31 | 徐忠敏 | Mica fragment transfer device |
| CN113941438A (en) * | 2021-10-20 | 2022-01-18 | 广东顺博铝合金有限公司 | Aluminum products recovery processing is with broken lump material deironing device |
| CN116251673A (en) * | 2023-03-31 | 2023-06-13 | 蜂巢能源科技股份有限公司 | Separation method and separation equipment for magnetic substances in silicon-based anode material |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108136410A (en) * | 2016-03-24 | 2018-06-08 | 陈勇 | A kind of superelevation magnetic concentration device of magnetic iron ore |
| CN105964395A (en) * | 2016-07-12 | 2016-09-28 | 陈勇 | Spray nozzle type ultrahigh-magnetism ore dressing device |
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| CN113857049A (en) * | 2020-06-30 | 2021-12-31 | 徐忠敏 | Mica fragment transfer device |
| CN112495579A (en) * | 2020-12-08 | 2021-03-16 | 永丰县广润化工有限公司 | Nonmetal mineral impurity screening and subpackaging mechanism |
| CN112495579B (en) * | 2020-12-08 | 2023-01-24 | 永丰县广润化工有限公司 | Nonmetal mineral impurity screening and subpackaging mechanism |
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| CN113941438B (en) * | 2021-10-20 | 2024-03-12 | 广东顺博铝合金有限公司 | Broken piece material deironing device for aluminum product recovery processing |
| CN116251673A (en) * | 2023-03-31 | 2023-06-13 | 蜂巢能源科技股份有限公司 | Separation method and separation equipment for magnetic substances in silicon-based anode material |
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Application publication date: 20141126 |