CN101444778B - Dry method cull eliminator and application thereof - Google Patents

Dry method cull eliminator and application thereof Download PDF

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Publication number
CN101444778B
CN101444778B CN200910076088A CN200910076088A CN101444778B CN 101444778 B CN101444778 B CN 101444778B CN 200910076088 A CN200910076088 A CN 200910076088A CN 200910076088 A CN200910076088 A CN 200910076088A CN 101444778 B CN101444778 B CN 101444778B
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CN
China
Prior art keywords
dry method
bed
method cull
cull eliminator
discharge
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Expired - Fee Related
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CN200910076088A
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Chinese (zh)
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CN101444778A (en
Inventor
韦鲁滨
曾鸣
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China University of Mining and Technology CUMT
China University of Mining and Technology Beijing CUMTB
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China University of Mining and Technology Beijing CUMTB
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Priority to CN200910076088A priority Critical patent/CN101444778B/en
Publication of CN101444778A publication Critical patent/CN101444778A/en
Application granted granted Critical
Publication of CN101444778B publication Critical patent/CN101444778B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The present invention discloses a dry method cull eliminator and application thereof, which includes a fluidized-bed provided with a gas sparger, a gas supply device, and a vibration device. A raw ore inlet port is set on the longitudinal end of the fluidized-bed, and a floats outlet port is provided on the other end; a upswept deposition discharging segment is set on transversal side of the fluidized-bed, wherein the caudal end of the deposition discharging segment includes a middling ore discharge port and a tailing ore discharge port. The side tailing ore discharge port higher than side of the middling ore discharge port. The dry method cull can be applied on sorting materials according to density, and various products like head coal, middling, and gangue can be sorted with high efficiency and stable running.

Description

Dry method cull eliminator and application thereof
Technical field
The present invention relates to a kind of technique of preparing, relate in particular to a kind of dry method cull eliminator and application thereof.
Background technology
The coal separation of air dense medium fluid bed is to contact the gas-solid suspended substance that forms with medium solid as separating medium with air, and the density of suspended substance equates basically that with separating density genus dry type dense medium separation has sharpness of separation height, the wide advantage of adaptability.
As shown in Figure 1; Structural representation for a kind of air dense medium fluid-bed separator of the prior art; Comprise devices such as air chamber, gas distributor, separation chamber and drag conveyor, feed coal feeds from the separator middle part, light density material come-up; Heavy density material sinks, and will float thing and hypostasis discharge by stepless chain-and-flight conveyer.
There is following shortcoming at least in above-mentioned prior art:
Effective area utilization rate in the separator is too little, and material feeds from the separator middle part, and actual effective sorting area only accounts for the half the of whole sorting area, causes separator unit are treating capacity low; Gap between discharge scraper plate and the gas distributor maybe be by flat spoil piece filling, and extruding coal grain embeds in the pore, causes the local obstruction of gas distributor, influences the long-term stability operation of cloth wind uniformity and separator.
Summary of the invention
The purpose of this invention is to provide a kind of efficient high, stable dry method cull eliminator and application thereof.
The objective of the invention is to realize through following technical scheme:
Dry method cull eliminator of the present invention comprises fluid bed, and said fluid bed is provided with gas distributor and feeder, and an end of said fluid bed is provided with the raw ore inlet port; The other end is provided with floating thing outlet; One side of said fluid bed is provided with hypostasis and discharges section; Said fluid bed is provided with vibrating device.
The application of above-mentioned dry method cull eliminator of the present invention is characterized in that, this dry method cull eliminator is used for sorting mineral, and the product after the sorting comprises floating thing and hypostasis, and said floating thing is low-density concentrate.
Technical scheme by the invention described above provides can be found out; Dry method cull eliminator of the present invention and application thereof, because raw ore inlet port and floating thing outlet are located at the two ends of fluid bed respectively, hypostasis is discharged the side that section is located at fluid bed; And fluid bed is provided with vibrating device; On the basis of fluidisation sorting, increased the vibration sorting, and through the vibration discharging, efficient is high, stable.
Description of drawings
Fig. 1 is the structural representation of dry method cull eliminator of the prior art;
Fig. 2 is the structural representation of dry method cull eliminator of the present invention.
The specific embodiment
Dry method cull eliminator of the present invention, its preferable specific embodiment is as shown in Figure 2, comprises fluid bed 1, and fluid bed is provided with gas distributor and feeder 10.Fluid bed 1 also is provided with vibrating device 4.One end of fluid bed 1 is provided with raw ore inlet port 2; The other end is provided with floating thing outlet 3.On the basis of fluidisation sorting, increased the vibration sorting, and through the vibration discharging, efficient is high, stable.
The top of fluid bed can be provided with dials material wheel 5, and dialling material wheel 5 can be near floating thing outlet 3.
One side of fluid bed 1 is provided with hypostasis and discharges section, specifically can be provided with hypostasis outlet 6 in a side of fluid bed 1, and hypostasis is discharged section and is connected hypostasis outlet 6 places.
Hypostasis is discharged section can comprise discharge bed 7, and discharge bed 7 can be connected with vibrating device 4.Discharge bed 4 can be provided with gas distributor and feeder 10.
The discharge end of discharge bed 7 can be higher than feed end.One side of the discharge end of discharge bed 7 is a chats discharging opening 9; Opposite side is a mine tailing discharging opening 8.Mine tailing discharging opening 8 sides of discharge bed 7 can be higher than chats discharging opening 9 sides; According to the character of mineral, also can be that chats discharging opening 9 sides of discharge bed 7 are higher than mine tailing discharging opening 8 sides.In the time only need sub-electing two kinds of products, can be that mine tailing discharging opening 8 sides and chats discharging opening 9 sides are in same level height, mine tailing discharging opening 8 and chats discharging opening 9 are united two into one.
The material of the gas distributor of above-mentioned fluid bed 1 and discharge bed 4 can comprise porous plate, and the upper strata can adopt the expanded rubber plate of great friction coefficient to make.
The application of above-mentioned dry method cull eliminator of the present invention, its preferable specific embodiment be, this dry method cull eliminator is used for sorting mineral, and the product after the sorting can comprise concentrate, chats, mine tailing, and concentrate is said floating thing.
This dry method cull eliminator can be used for coal separation, and concentrate is a cleaned coal, and chats is middle coal, and mine tailing is a spoil.
This dry separation device also can sub-elect two kinds of products or sub-elect the product more than three kinds.
Carry out detailed description in the face of the operation principle of specific embodiment of the present invention down:
Dry method cull eliminator is discharged section two parts by fluid bed separation section and hypostasis and is formed; The pan feeding raw coal gets into behind the separator at first in the sorting of fluid bed separation section; Bed surface is made up of the rubber bottom plate of porous, great friction coefficient; Heavy product replaces scraper plate to carry with vibrating transportation, and the dense media effect that the case of low density loads on bed top receives fluidisation is suspended in the top of fluid bed, can not get the high frictional force effect that base plate is given; And under the effect of dialling the material wheel, discharge through cleaned coal discharge gate (promptly floating thing outlet 3), the high density material of bed bottom is discharged through baffle plate discharge gate (being hypostasis outlet 6) under the inertia force effect that base plate frictional force and vibration produce.
High density material that fluid bed separation goes out gets into hypostasis and discharges section, and it is in order to prevent that medium solid from leaking in a large number on the one hand that hypostasis is discharged being provided with of section because heavy product from the bed bottom continuous pulp discharge; Also can select again on the other hand by the air table grading principle, thereby but realized the separator coal product of output more than 2 kinds simultaneously, and the dry method cull eliminator of prior art can only go out 2 kinds of products.
Dry method cull eliminator engineering reliability of the present invention is high, and the vibrating transportation of bed bottom high density material has avoided original scraper plate to carry extruding coal grain to embed pore, causes the local blocking problem of gas distributor;
The unit are treating capacity is high, and the pan feeding of separator is to feed from separator one end, and cleaned coal is discharged along separator lengthwise movement to tail end, and the longitudinal length of separator just equals the length of branch favored area, thereby has effectively improved the utilization rate of sorting area in the machine;
Make the maximization of separator be achieved, just can enlarge the treating capacity of separator through the width of widening separator;
The mode of movement of weight product is coordinated with the uniform and stable fluidisation of bed mutually; Vibrating transportation also makes shallow slot fluidization sorting become possibility, and producing depth is more little, and fluid effect is good more, and the fluid-bed separator of prior art must adopt darker bed because adopt the scraper plate marker method; In addition, vibrational energy is introduced common fluid bed, strengthened the contact between the gas-solid, help to improve the fluidisation and the sorting property of fluid bed.
The above; Be merely the preferable specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, any technical staff who is familiar with the present technique field is in the technical scope that the present invention discloses; The variation that can expect easily or replacement all should be encompassed within protection scope of the present invention.

Claims (9)

1. a dry method cull eliminator comprises fluid bed, and said fluid bed is provided with gas distributor and feeder, it is characterized in that, an end of said fluid bed is provided with the raw ore inlet port; The other end is provided with floating thing outlet; One side of said fluid bed is provided with hypostasis and discharges section; Said fluid bed is provided with vibrating device;
Said hypostasis is discharged section and is comprised the discharge bed, and said discharge bed is provided with gas distributor and feeder, and said discharge bed is connected with said vibrating device.
2. dry method cull eliminator according to claim 1 is characterized in that, the top of said fluid bed is provided with dials the material wheel.
3. dry method cull eliminator according to claim 2 is characterized in that, said group of material wheel is near said floating thing outlet.
4. dry method cull eliminator according to claim 1 is characterized in that the discharge end of said discharge bed is higher than feed end.
5. dry method cull eliminator according to claim 4 is characterized in that, a side of said discharge bed is provided with the chats discharging opening; Opposite side is provided with the mine tailing discharging opening.
6. dry method cull eliminator according to claim 5 is characterized in that, the mine tailing discharging oral-lateral of said discharge bed is higher than chats discharging oral-lateral or is in same level height.
7. dry method cull eliminator according to claim 1 is characterized in that said gas distributor comprises porous plate, and the top of said porous plate is provided with the expanded rubber plate.
8. the application of each described dry method cull eliminator of claim 1 to 7 is characterized in that, this dry method cull eliminator is used for sorting mineral, and the product after the sorting comprises floating thing and hypostasis, and said floating thing is low-density concentrate.
9. the application of dry method cull eliminator according to claim 8 is characterized in that, this dry method cull eliminator is used for coal separation, and said concentrate is a cleaned coal; Said hypostasis is further elected as middle coal, spoil by branch.
CN200910076088A 2009-01-05 2009-01-05 Dry method cull eliminator and application thereof Expired - Fee Related CN101444778B (en)

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CN101444778B true CN101444778B (en) 2012-09-05

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Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102198446A (en) * 2011-05-03 2011-09-28 中国矿业大学(北京) Heavy-media dry-method separator with vibration discharge function
CN109317301A (en) * 2018-11-14 2019-02-12 王光领 A kind of air dry sand Recognition Applied in Coal Preparation System

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1085830A (en) * 1992-10-16 1994-04-27 中国矿业大学 Large air fluidized bed for separating heavy solids medium
CN2165939Y (en) * 1993-02-15 1994-05-25 中国矿业大学 Dry type sorting unit of vibrating fluidized bed for fine coals
CN1161884A (en) * 1996-04-10 1997-10-15 中国矿业大学 Method for sorting three products by fluid-bed with double-thickness layer of air dense-media and apparatus thereof
CN201337986Y (en) * 2009-01-05 2009-11-04 中国矿业大学(北京) Dry separation device

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1085830A (en) * 1992-10-16 1994-04-27 中国矿业大学 Large air fluidized bed for separating heavy solids medium
CN2165939Y (en) * 1993-02-15 1994-05-25 中国矿业大学 Dry type sorting unit of vibrating fluidized bed for fine coals
CN1161884A (en) * 1996-04-10 1997-10-15 中国矿业大学 Method for sorting three products by fluid-bed with double-thickness layer of air dense-media and apparatus thereof
CN201337986Y (en) * 2009-01-05 2009-11-04 中国矿业大学(北京) Dry separation device

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
JP特开2008-264657A 2008.11.06
JP特开平11-309364A 1999.11.09
韦鲁滨,陈清如,赵跃民.空气重介质流化床三产品的分选特性.《化工冶金》.1999,第20卷(第2期),140-143. *

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