CN102921636A - Authigenic medium vibrated fluidized bed dry separating method and separating machine - Google Patents
Authigenic medium vibrated fluidized bed dry separating method and separating machine Download PDFInfo
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- CN102921636A CN102921636A CN2012104391043A CN201210439104A CN102921636A CN 102921636 A CN102921636 A CN 102921636A CN 2012104391043 A CN2012104391043 A CN 2012104391043A CN 201210439104 A CN201210439104 A CN 201210439104A CN 102921636 A CN102921636 A CN 102921636A
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Abstract
The invention discloses an authigenic medium vibrated fluidized bed dry separating method and a separating machine and the authigenic medium vibrated fluidized bed dry separating method and the separating machine are suitable to dry separation of coal, ore and other materials. An authigenic medium is formed in a vibrated fluidized bed through separation and feeding, layering in accordance with density is achieved, fluidization of materials is achieved under the cooperative action of updraft and vibration force, materials of high density are discharged from a separating bed continuously, the separation load is reduced, external medium solid is not used, and the separation is achieved through a medium bed with certain density, which is formed in fluidization of feeding particles. The separating machine comprises the separating bed, an air distributing chamber, a discharging device, an overflowing adjustor, a dust removing and air inducing cover, an excitation motor, a spring and a rack. Three separation sections are used, the separation of heave products and light products of three different density is achieved, the medium solid is not used, the separation cost is low, no embedded chain type discharging device is required, materials are conveyed through vibration, fluidized bed flow and bed inclined angle change, the structure is simple, the operation is stable and the reliability is high.
Description
Technical field:
The present invention relates to a kind of dry separation method and separator, especially a kind of coal, ore and other material of being applicable to carries out vibrated fluidized bed dry separation method and separator based on the autogenous medium sorting.
Background technology:
Dry separation equipment mainly contains air jigging separator, Duplex dry separator and air dense medium fluidized bed dry method cull eliminator at present.Air jigging separator feeds the pulsation air stream in the air distribution plate bottom, forms variable velocity media stream, and the sorting pan feeding periodically disperses and sedimentation in variable velocity media stream, finishes within a certain period of time the layering of taking factor by density as the leading factor, thereby realizes sorting.But the medium pulsation can cause the bed fluctuation large, and material autogenous medium layer is very thin, can't form enough large hindered falling space, and sharpness of separation is not high.In Duplex dry separator, the particle of different densities is subject to wind-force, exciting force, gravity and the acting in conjunction of bed surface frictional force, according to the potential energy little theoretical separation that realizes taking as the leading factor by density factor that becomes, but because the interference effect of size segregation, sharpness of separation is not high.The mixing medium solid that air dense medium fluidized bed dry method cull eliminator adopts Air Fluidized magnetite powder and coal dust to form, form the separating medium bed, according to Archimedes principle, pan feeding realizes pressing density separation in the air dense medium fluidized bed, sharpness of separation is high, effectively sorting difficult separation coal and utmost point difficult separation coal.But it has following weak point: the one, and its qualified magnetite powder grade that adopts is narrow, processing difficulties, and the reclaiming clean of medium solid increased capital construction cost and operating cost, simultaneously because the restriction of existing dry method de-mediated equipment and technology level, assorting room is situated between consumption greatly, and the sorting cost is high; The 2nd, its separation system is complicated, and is higher to the separating density stability requirement; The 3rd, its built-in chain scraper feeding unit that adopts easily causes the air distribution plate plug-hole, and not good for the fine particle stage material separating effect.
Summary of the invention:
Technical problem: the objective of the invention is to overcome the weak point in the prior art, propose a kind of simple in structure, stable, reliability is high, the sorting cost is low, autogenous medium vibrated fluidized bed dry separation method and the separator of water-saving and environmental protection.
Technical scheme: autogenous medium vibrated fluidized bed dry separation method of the present invention: comprise the steps:
A. material feeds by charging gear in the sorting bed of selections in three minutes, opens shock electric machine;
B. air feed in three air compartment respectively, evenly enter in the sorting bed of selections in three minutes by the gas distributor air distribution plate that arranges in three air compartment, the sorting bed of selections in three minutes is done rectilinear motion under the exciting force effect that shock electric machine provides, material is realized fluidisation under the synergy of ascending air and exciting force, form autogenous medium sorting bed, the high density material sinking, the case of low density loads floating realizes that material is by density stratification;
C. material is in selections in first minute, and heavy product is expelled in the conveying worm by first impeller material discharging machine, and leftover materials enter in next minute selections, and then discharge section high density material, and final case of low density loads is discharged by light product discharge gate;
D. regulate the overflow adjustable plate of light product discharge gate, can control light product quality and productive rate.
Realize the autogenous medium vibrated fluidized bed dry method cull eliminator of said method, comprise to sorting bed, be located at the sorting bed left end charging gear, be supported on the frame of sorting bed both sides, the right-hand member of sorting bed is provided with light product discharge gate, and described charging gear and sorting bed flexibly connect; Described sorting bed is the sorting bed that selections in three minutes are arranged, the sorting bed top of selections in three minutes is provided with the dedusting blower cover, the sorting bed below of selections in three minutes is fixed with three air compartment and three impeller material discharging machines, three impeller material discharging machine bottoms are provided with conveying worm, are equipped with the gas distributor air distribution plate in each air compartment; The center, both sides is arranged with shock electric machine before and after the described sorting bed; Described light product discharge gate is provided with overflow regulator, and described overflow regulator comprises the overflow adjustable plate, is located at the screw rod on the adjustable plate, and screw rod is provided with the fixed block of regulating through nut.
Described charging gear comprises the wedge shape surge bunker, and the wedge mouth place of this wedge shape surge bunker is provided with the feeding control plate by the control of amount control of sailing axle, and the bottom of wedge shape surge bunker is provided with the feed flashboard by the control of switch bearing pin.
Beneficial effect: the present invention utilizes the sorting pan feeding to form autogenous medium in vibrated fluidized bed and realizes by density stratification, along three impeller material discharging machines are arranged on the separation length, constantly the high density material is discharged sorting bed, alleviate the sorting load, a plurality of processes of selecting are again arranged, need not external medium solid, the medium bed with certain density that forms when only relying on pan feeding grain fluidized is realized sorting.Improve sharpness of separation, can obtain multiple different densities product, be convenient to product restructuring.Assorting room does not adopt medium solid, the sorting cost is lower, and without built-in chain type discharge device, mass transport is realized at main vibration, the gravity flow of fluidization bed and the change bed body inclination angle of relying on, and is simple in structure, stable, reliability is high, and the sorting cost is low, can realize the dry method efficient separation of coal, ore and other materials, and water especially is not fit to the resource high-efficiency processing and utilization in drought and water shortage area.Do not adopt medium solid, rely on particle relatively thin in the pan feeding under vibration and air-flow synergy, to form the autogenous medium bed, residue carries out realizing sorting by the sedimentation that net buoyancy is taken as the leading factor in the autogenous medium bed than coarse granule, and mass transport is realized at main vibration, the gravity flow of fluidization bed and the change bed body inclination angle of relying on, and has vibrated fluidized bed dry method cull eliminator simple in structure, stable, the characteristics such as reliability is high, the sorting cost is low, water-saving and environmental protection.
Description of drawings:
Fig. 1 is method for separating schematic flow sheet of the present invention;
Fig. 2 is separator structure schematic diagram of the present invention;
Fig. 3 is light product discharge gate overflow baffle structural representation of the present invention.
Among the figure: 1-batcher, 2-sorting bed, 3-dedusting blower cover, 4-shock electric machine, 5-spring, the light product discharge gate of 6-, 7-frame, 8-air compartment, 9-impeller material discharging machine, 10-conveying worm, 11-overflow adjustable plate, 12-adjustable plate chute, 13-screw rod, 14-fixed block, 15-nut.
The specific embodiment
Below in conjunction with accompanying drawing one embodiment of the present of invention are further described:
As shown in Figure 1, autogenous medium vibrated fluidized bed dry separation method of the present invention: pan feeding is fed by batcher 1 in the autogenous medium vibrated fluidized bed separator of selections in three minutes, open shock electric machine 4; Respectively to three air compartment, 8 interior air feeds, air leads to air blast, enters through pressurized tank, gas distributor air distribution plate by three air compartment's 8 interior settings evenly enters in the sorting bed 2 of selections in three minutes, the sorting bed 2 of selections in three minutes is done rectilinear motion under the exciting force effect that shock electric machine 4 provides, material is realized fluidisation under the synergy of ascending air and exciting force, form autogenous medium sorting bed, and high density product is sunk, the low density products floating realizes that material is by density stratification; Material is in selections in first minute, heavy product is expelled in the conveying worm 10 by first impeller material discharging machine 9, and leftover materials enter in next minute selections, and then discharges two kinds of intermediate density products, so through repeatedly sorting, final low density products is discharged by light product discharge gate 6; Regulate the overflow adjustable plate 11 of light product discharge gate 6, can control light product quality and productive rate.Amount to four kinds of products after the sorting, can carry out product restructuring according to customer requirements.The air that contains a large amount of dust that assorting room produces enters into deduster to be separated, and collects dust and discharges pure air.
As shown in Figure 2, realize the autogenous medium vibrated fluidized bed dry method cull eliminator of said method, mainly formed by sorting bed 2, air compartment 8, light product discharge gate 6, impeller material discharging machine 9, dedusting blower cover 3, shock electric machine 4, spring 5, frame 7.Batcher 1 is located at the left end of sorting bed 2, frame 7 is supported on the both sides of sorting bed 2, and light product discharge gate 6 is located at the right-hand member of sorting bed 2, and described batcher 1 flexibly connects with sorting bed 2, frame 7 is provided with spring 5 with sorting bed 2 junctions, and sorting bed 2 is connected with frame by spring 5 connections; Described sorting bed 2 is for there being the sorting bed 2 of selections in three minutes, sorting bed 2 tops of selections in three minutes are provided with two dedusting blower covers 3, sorting bed 2 belows of selections in three minutes are fixed with three air compartment 8 and 9, three impeller material discharging machines 9 of three impeller material discharging machines and three air compartment's 8 respectively corresponding selections in three minutes.Three impeller material discharging machine 9 bottoms are provided with conveying worm 10, and impeller material discharging machine 9 flexibly connects with conveying worm 10; Each air compartment 8 top is equipped with the gas distributor air distribution plate; Air compartment 8 bottoms are provided with gas distributor; Described air compartment 8 is along having three on the separation length direction, its air quantity is independently controlled, and can make different sorting sections that different fluidizing gas velocities is arranged; Center, both sides, described sorting bed 2 front and back is arranged with shock electric machine 4; By regulating the installation direction angle of shock electric machine 4 on motor cabinet, can make vibrating direction angle 0 ° ~+60 ° variations, thereby amplitude can freely be adjusted in 1mm ~ 6mm scope; Described shock electric machine 4 can make vibration frequency adjustable in 10 Hz ~ 50 Hz scopes by Frequency Converter Control; Described light product discharge gate 6 is provided with overflow regulator, and described overflow regulator comprises overflow adjustable plate 11, is located at the screw rod 13 on the adjustable plate 11, and screw rod 13 is provided with the fixed block 14 of regulating through nut 15.Described light product discharge gate 6 is provided with overflow regulator, this overflow regulator is comprised of overflow adjustable plate 11, adjustable plate chute 12, screw rod 13, fixed block 14 and nut 15, described overflow adjustable plate 11 height are adjusted up and down by being pulled in the adjustable plate chute 12 of screw rod 13 and nut 15, can control light products collection efficiency and quality.
Claims (3)
1. an autogenous medium vibrated fluidized bed dry separation method is characterized in that, comprises the steps:
A. material feeds by charging gear (1) in the sorting bed (2) of selections in three minutes, opens shock electric machine (4);
B. respectively to the interior air feed of three air compartment (8), evenly enter in the sorting bed (2) of selections in three minutes by the gas distributor air distribution plate that arranges in three air compartment (8), the sorting bed of selections in three minutes (2) is done rectilinear motion under the exciting force effect that shock electric machine (4) provides, material is realized fluidisation under the synergy of ascending air and exciting force, form autogenous medium sorting bed, the high density material sinking, the case of low density loads floating realizes that material is by density stratification;
C. material is in selections in first minute, heavy product is expelled in the conveying worm (10) by first impeller material discharging machine (9), leftover materials enter in next minute selections, and then discharge section high density material, and final case of low density loads is discharged by light product discharge gate (6);
D. regulate the overflow adjustable plate (11) of light product discharge gate (6), can control light product quality and productive rate.
2. autogenous medium vibrated fluidized bed dry method cull eliminator of realizing the described method of claim 1, comprise to sorting bed (2), be located at sorting bed (2) left end charging gear (1), be supported on the frame (7) of sorting bed (2) both sides, the right-hand member of sorting bed (2) is provided with light product discharge gate (6), it is characterized in that: described charging gear (1) flexibly connects with sorting bed (2); Described sorting bed (2) is for there being the sorting bed (2) of selections in three minutes, the sorting bed of selections in three minutes (2) top is provided with dedusting blower cover (3), the sorting bed of selections in three minutes (2) below is fixed with three air compartment (8) and three impeller material discharging machines (9), three impeller material discharging machines (9) bottom is provided with conveying worm (10), and each air compartment is equipped with the gas distributor air distribution plate in (8); The center, both sides is arranged with shock electric machine (4) before and after the described sorting bed (2); Described light product discharge gate (6) is provided with overflow regulator, and described overflow regulator comprises overflow adjustable plate (11), is located at the screw rod (13) on the adjustable plate (11), and screw rod (13) is provided with the fixed block (14) of regulating through nut (15).
3. autogenous medium vibrated fluidized bed dry method cull eliminator according to claim 2 is characterized in that; Described charging gear (1) comprises the wedge shape surge bunker, and the wedge mouth place of wedge shape surge bunker is provided with the feeding control plate by the control of amount control of sailing axle, and the bottom of wedge shape surge bunker is provided with the feed flashboard by the control of switch bearing pin.
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103350094A (en) * | 2013-07-09 | 2013-10-16 | 台州伟博环保设备科技有限公司 | Pneumatic sorting machine |
| WO2014161253A1 (en) * | 2013-04-02 | 2014-10-09 | 中国矿业大学 | Drying and separation integrated machine for vibrating fluidized bed |
| CN105381950A (en) * | 2015-10-19 | 2016-03-09 | 中国矿业大学 | Large dry dense medium fluidized bed separation machine and separation system |
| CN109550583A (en) * | 2018-12-05 | 2019-04-02 | 中国矿业大学 | A kind of smalls vibration compound force field dry method cull eliminator and technique |
| CN110328140A (en) * | 2019-03-29 | 2019-10-15 | 中国矿业大学 | Improve the method and corollary apparatus of grain fluidized quality and separating density stability |
| WO2020199818A1 (en) * | 2019-03-29 | 2020-10-08 | 中国矿业大学 | Gas-solid fluidized bed dry separation process using separation density gradients |
| CN112090746A (en) * | 2020-11-09 | 2020-12-18 | 天津美腾科技股份有限公司 | Multi-product material sorting method and cascade dry separator |
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| CN110328140A (en) * | 2019-03-29 | 2019-10-15 | 中国矿业大学 | Improve the method and corollary apparatus of grain fluidized quality and separating density stability |
| WO2020199818A1 (en) * | 2019-03-29 | 2020-10-08 | 中国矿业大学 | Gas-solid fluidized bed dry separation process using separation density gradients |
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| CN112090746A (en) * | 2020-11-09 | 2020-12-18 | 天津美腾科技股份有限公司 | Multi-product material sorting method and cascade dry separator |
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