CN109604042A - A kind of energy saving shallow slot heavy-media separator of width grade pulsation - Google Patents
A kind of energy saving shallow slot heavy-media separator of width grade pulsation Download PDFInfo
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- CN109604042A CN109604042A CN201811639303.2A CN201811639303A CN109604042A CN 109604042 A CN109604042 A CN 109604042A CN 201811639303 A CN201811639303 A CN 201811639303A CN 109604042 A CN109604042 A CN 109604042A
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- Prior art keywords
- sorting groove
- coal
- discharge
- energy saving
- shallow slot
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
- B03B5/00—Washing granular, powdered or lumpy materials; Wet separating
- B03B5/28—Washing granular, powdered or lumpy materials; Wet separating by sink-float separation
- B03B5/30—Washing granular, powdered or lumpy materials; Wet separating by sink-float separation using heavy liquids or suspensions
- B03B5/36—Devices therefor, other than using centrifugal force
- B03B5/40—Devices therefor, other than using centrifugal force of trough type
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
- B03B5/00—Washing granular, powdered or lumpy materials; Wet separating
- B03B5/28—Washing granular, powdered or lumpy materials; Wet separating by sink-float separation
- B03B5/30—Washing granular, powdered or lumpy materials; Wet separating by sink-float separation using heavy liquids or suspensions
- B03B5/36—Devices therefor, other than using centrifugal force
- B03B5/40—Devices therefor, other than using centrifugal force of trough type
- B03B2005/405—Devices therefor, other than using centrifugal force of trough type using horizontal currents
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- Separation Of Solids By Using Liquids Or Pneumatic Power (AREA)
Abstract
The invention discloses a kind of wide energy saving shallow slot heavy-media separators of grade pulsation, it includes sorting groove, flutter valve, coal Jie's mixing tank, cleaned coal discharge device and scraper plate arrange stone device, the sorting groove is fixed in Equipment Foundations, the side of sorting groove is equipped with row's stone mouth, bottom is connected with rising medium tube, the flutter valve, which is mounted on, to be risen in medium tube, the control coil of flutter valve connects pulse signal, coal Jie mixing tank and cleaned coal discharge device are separately mounted to the feeding end and discharge end of sorting groove, scraper plate row's stone device is mounted on the bottom of sorting groove and corresponding with row's stone mouth.The present invention makes to rise medium formation pulsation upper up-flow by controlling the opening and closing repeatedly of flutter valve, this pulsation upper up-flow can be in the lesser situation of medium flow field speed, prevent medium precipitating from causing variable density, ensure that longitudinal Media density is uniform in sorting groove, high density finely ground particle substance is avoided to float, to effectively improve the separating effect of raw coal.
Description
Technical field
The present invention relates to a kind of coal separation shallow slot dense medium separation equipment, in particular to a kind of wide energy saving shallow slot of grade pulsation
Heavy-media separator belongs to separation technology field.
Background technique
Shallow slot heavy-media separator is lump coal separation equipment, and the efficiency of separation is high, adaptable, is movable-sieve jig, oblique
The alternate device for taking turns heavy-media separator, vertical lifting wheel separator, is large-sized power coal coal preparation plant lump coal discharge refuse preferred unit,
Market application prospect is wide.
When existing shallow slot heavy-media separator is run, the medium flow field in sorting groove includes stable upper up-flow and level
Stream rises medium flow field and accounts for the 20% of suspension total amount, and horizontal media stream accounts for the 80% of suspension total amount.Rise medium flow field to small grain size
Highdensity particles sink influence is very big, inevitable when rising medium flow field speed greater than small grain size high density granular subsidence velocity
There is small grain size high density granular to be mixed into floating object, seriously affect floating object quality, when rising velocity of medium spends small, in sorting groove
Medium is easy precipitating, leads to the longitudinal shakiness of Media density in sorting groove, influences separating effect.
The size range of separation of shallow slot heavy-media separator is relatively narrow due to the above reasons, and lower limit is higher, is mainly used for 13-150mm
The sorting of coal, when sorting -13mm coal, high density small particle content is more in overflow, influences quality of cleaned coal.Shallow slot weight simultaneously
The sorting upper limit of medium sorter is lower, is mainly used for the sorting of -150mm coal, when the upper limit is greater than 150mm, big in overflow
Grain is easy to accumulate at overflow port, it is necessary to horizontal media stream flow is increased, and raw coal can be shortened in slot by increasing level stream not only
The time is sorted, separating effect is influenced, also will increase circulatory mediator pump power, to increase processing cost；Level stream is too small then
Raw coal cannot get effective wetting, will affect separating effect and processing capacity.
In conclusion the application of existing shallow slot heavy-media separator receives certain limitation due to unreasonable structure,
It is badly in need of a kind of energy-efficient shallow slot heavy-media separator of wide grade at present.
Summary of the invention
It is an object of the invention to aiming at the disadvantages of the prior art, provide a kind of wide energy saving shallow slot dense media point of grade pulsation
Machine is selected, to improve raw coal separation effect.
To achieve the above object, the present invention adopts the following technical scheme:
A kind of width grade is pulsed energy saving shallow slot heavy-media separator, includes sorting groove, flutter valve, coal Jie mixing tank, essence in composition
Coal discharge device and scraper plate arrange stone device, and the sorting groove is fixed in Equipment Foundations, and the side of sorting groove is equipped with row's stone mouth, bottom
Portion is connected with rising medium tube, and the flutter valve, which is mounted on, to be risen in medium tube, and the control coil of flutter valve connects pulse signal, institute
It states coal Jie mixing tank and cleaned coal discharge device is separately mounted to the feeding end and discharge end of sorting groove, the scraper plate row stone device peace
Mounted in sorting groove bottom and with row stone mouth it is corresponding.
The above-mentioned energy saving shallow slot heavy-media separator of width grade pulsation, the cleaned coal discharge device includes nesting box, discharge leaf
Wheel and discharge motor, the side of the nesting box are equipped with discharge gate, and the other side is equipped with to be connected to each other with the discharge port on sorting groove top
Feed inlet, the marker impeller is mounted in nesting box and is located between the feed inlet and discharge gate of nesting box, the discharge
Motor is fixed on outside nesting box and constitutes driving relationship by speed reducer and marker impeller.
The above-mentioned wide energy saving shallow slot heavy-media separator of grade pulsation, coal Jie mixing tank include that cabinet is managed with Jie is entered, institute
Cabinet one end is stated equipped with feeding inlet, the other end is equipped with the discharge port being connected to each other with the feed inlet of sorting groove, described to enter to be situated between the one of pipe
End is connected to cabinet, the flat medium source of other end water receiving.
The above-mentioned energy saving shallow slot heavy-media separator of width grade pulsation, the scraper plate row stone device includes scraper chain, drive chain
Wheel, driven sprocket and row's stone motor, the drive sprocket and driven sprocket are mounted on sorting groove, and the scraper chain is wound on actively
Bottom and row's stone mouth on sprocket wheel and driven sprocket and from sorting groove are passed through, and row's stone motor is fixed on sorting groove and passes through
Transmission mechanism is connect with drive sprocket.
Above-mentioned width grade is pulsed energy saving shallow slot heavy-media separator, and liquid-leaking nozzle is distributed on the blade of the marker impeller.
Above-mentioned width grade is pulsed energy saving shallow slot heavy-media separator, is distributed with leakage on each scraper plate of the scraper chain
Hole.
The present invention makes to rise medium formation pulsation upper up-flow, this pulsation upper up-flow by controlling the opening and closing repeatedly of flutter valve
It can prevent medium precipitating from causing variable density in the lesser situation of medium flow field speed, it is ensured that longitudinal Media density in sorting groove
Uniformly, high density finely ground particle substance is avoided to float, to effectively improve the separating effect of raw coal.
Detailed description of the invention
The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is the right view of Fig. 1；
Fig. 3 is A-A cross-sectional view；
Fig. 4 is the structural schematic diagram of coal Jie's mixing tank；
Fig. 5 is the left view of Fig. 4.
Each label in figure are as follows: 1. coal Jie's mixing tanks, 1-1. cabinet, 1-2. enter the pipe that is situated between, 2. sorting grooves, 3. flutter valves, 4. essences
Coal discharge device, 4-1. marker impeller, 4-2. nesting box, 4-3. discharge motor, 5. scraper plates arrange stone device, 5-1. scraper plate
Chain, 5-2. driven sprocket, 5-3. arrange stone motor, and 5-4. drive sprocket, 6. row's stone mouths, 7. rise medium tube.
Specific embodiment
The present invention provides a kind of size range of separation wide (limit for height, lower limit of separation are low in sorting), efficiency of separation height, energy-saving effects
The good energy saving shallow slot heavy-media separator of wide grade pulsation.
Referring to FIG. 1 to FIG. 4, the invention mainly comprises coal Jie mixing tank 1, sorting groove 2, flutter valve 3, cleaned coal discharge devices 4
Stone device 5 is arranged with scraper plate.
Coal Jie mixing tank 1 includes cabinet 1-1 and the pipe 1-2 that enters to be situated between, and cabinet 1-1 is semiclosed cabinet, is mounted on dense media point
The feeding end of machine sorting groove 2 is selected, raw coal and horizontal media stream are respectively by the pipe 1-2 that enters to be situated between of cabinet 1-1 upper feeding mouth and side
It feeds, horizontal media flowing pressure is larger, and under the effect of high-speed Medium stream, raw coal and medium sufficiently stir in coal Jie's mixing box body
It mixes wet, guarantees that medium and raw coal come into full contact with, accelerate the wetting of raw coal, prevent the free conglomeration of raw coal, guarantee that raw coal is uniform
Dispersion.
Sorting groove 2 is the cabinet for filling medium, provides sorting space, and raw coal presses density stratification, heavy product in sorting groove
Stone device 5 is arranged by scraper plate to be discharged；Light product is discharged by cleaned coal discharge device 4, and final realize presses density separation.
Flutter valve 3, which is mounted on, to be risen in medium tube 7, realizes the pulsation of medium in sorting groove, guarantees longitudinally to be situated between in sorting groove
The uniformity of matter density prevents medium precipitating from causing variable density；Mispairing of the high density little particle into floating object can also be reduced.
Cleaned coal discharge device is mounted on the discharge end of sorting groove, and cleaned coal discharge device forces discharge side using the submergence of inverse coal stream
Formula is mainly made of marker impeller 4-1, nesting box 4-2 and discharge motor 4-3, aperture on the discharge blade of marker impeller 4-1,
Flow turbulence caused by resistance to water-flow can be reduced to sorting bring adverse effect, can force that big granularity cleaned coal is discharged,
Reducing still can guarantee that sorting groove is discharged in big grade cleaned coal in time under the conditions of 30% horizontal media stream, therefore can reduce the energy
Consumption.
Scraper plate arranges stone device 5 mainly by scraper chain 5-1, driven sprocket 5-2, row stone motor 5-3 and drive sprocket 5-4 structure
At being mounted on sorting trench bottom, sorting groove can be discharged in the high density spoil for sinking to slot bottom in time.Along scraper chain 5-1 arrangement
Uniform pore openings (as shown in Figure 3) on scraper plate can not only reduce resistance when movement, can also play dehydration after liquid level out and make
With.
Working principle of the present invention:
Enter to wash raw coal and suspension to feed from sorting machine-made egg-shaped or honey-comb coal briquets Jie mixing tank and sorting trench bottom rising medium tube respectively, be situated between from coal
The suspension that mixing tank is fed forms horizontal media stream, rises the suspension that medium tube is fed from bottom and forms rising medium flow field.
Horizontal media stream starts shipment defeated effect to floating material, determines residence time of the floating material in sorting groove, influences separating effect,
It influences floating material and sorting groove speed is discharged, the moment supplements suspension, and density of suspending liquid in sorting groove is kept to stablize.Rise medium
Stream is entered in sorting groove by flutter valve interruption, forms pulsation upper up-flow, it is ensured that effect suspension stabilization, while can also destroy
The package conglobation property of particle swarm promotes the sinking of small grain size high density granular, reduces the mispairing of small grain size high density granular to floating object
A possibility that middle.
Raw coal enters from coal Jie's mixing tank full of after certain density suspensions sorting groove, according to Archimedes' principle, is less than
The material of density of suspending liquid floats, and greater than the material sinking of density of suspending liquid, realizes press density stratification first, be divided into two by density
A product, the big heavy product of density sink down into slot bottom, and by scraper plate row's stone device discharge, and the small light product of density is with horizontal media
Stream transports sorting groove discharge end and is discharged by cleaned coal discharge device, finally realizes material by density separation.
The above, preferable specific embodiment only of the invention, but scope of protection of the present invention is not limited thereto,
Any changes or substitutions that can be easily thought of within the technical scope of the present disclosure by anyone skilled in the art, all
It is covered by the protection scope of the present invention.Therefore, protection scope of the present invention should be with the protection scope of claims
Subject to.
Claims (6)
- The energy saving shallow slot heavy-media separator 1. a kind of width grade is pulsed, characterized in that include sorting groove (2), flutter valve in composition (3), coal Jie mixing tank (1), cleaned coal discharge device (4) and scraper plate row stone device (5), the sorting groove (2) are fixed on equipment base On plinth, the side of sorting groove (2) is equipped with row stone mouth (6), and bottom, which is connected with, rises medium tube (7), and the flutter valve (3) is mounted on Rise on medium tube (7), the control coil of flutter valve (3) connects pulse signal, coal Jie mixing tank (1) and cleaned coal discharge device (4) it is separately mounted to the feeding end and discharge end of sorting groove (2), scraper plate row stone device (5) is mounted on the bottom of sorting groove (2) Portion is simultaneously corresponding with row stone mouth (6).
- The energy saving shallow slot heavy-media separator 2. a kind of wide grade according to claim 1 is pulsed, characterized in that the cleaned coal Discharge device (4) includes nesting box (4-2), marker impeller (4-1) and discharge motor (4-3), the side of the nesting box (4-2) Equipped with discharge gate, the other side is equipped with the feed inlet being connected to each other with the discharge port on sorting groove (2) top, the marker impeller (4-1) It is mounted between the feed inlet and discharge gate in nesting box (4-2) and positioned at nesting box (4-2), the discharge motor (4-3) is solid It is scheduled on nesting box (4-2) outside and driving relationship is constituted by speed reducer and marker impeller (4-1).
- The energy saving shallow slot heavy-media separator 3. a kind of wide grade according to claim 1 or 2 is pulsed, characterized in that described Coal Jie mixing tank (1) includes cabinet (1-1) and enters the pipe (1-2) that is situated between, and described cabinet one end (1-1) is equipped with feeding inlet, and the other end is set Have a discharge port being connected to each other with the feed inlet of sorting groove (2), it is described enter be situated between one end of pipe (1-2) be connected to cabinet (1-1), it is another Terminate horizontal media source.
- The energy saving shallow slot heavy-media separator 4. a kind of wide grade according to claim 3 is pulsed, characterized in that the scraper plate Arranging stone device (5) includes scraper chain (5-1), drive sprocket (5-4), driven sprocket (5-2) He Paishi motor (5-3), the master Movable sprocket (5-4) and driven sprocket (5-2) are mounted on sorting groove (2), and the scraper chain (5-1) is wound on drive sprocket (5-4) Pass through on driven sprocket (5-2) and from the bottom of sorting groove (2) and Pai Shikou (6), row's stone motor (5-3) is fixed on point It selects on slot (2) and is connect by transmission mechanism with drive sprocket (5-4).
- The energy saving shallow slot heavy-media separator 5. a kind of wide grade according to claim 4 is pulsed, characterized in that the discharge Liquid-leaking nozzle is distributed on the blade of impeller (4-1).
- The energy saving shallow slot heavy-media separator 6. a kind of wide grade according to claim 5 is pulsed, characterized in that the scraper plate Liquid-leaking nozzle is distributed on each scraper plate of chain (5-1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811639303.2A CN109604042B (en) | 2018-12-29 | 2018-12-29 | Wide-size-fraction pulsating shallow-groove heavy-medium separator |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811639303.2A CN109604042B (en) | 2018-12-29 | 2018-12-29 | Wide-size-fraction pulsating shallow-groove heavy-medium separator |
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| Publication Number | Publication Date |
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| CN109604042A true CN109604042A (en) | 2019-04-12 |
| CN109604042B CN109604042B (en) | 2021-03-09 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112844797A (en) * | 2021-02-18 | 2021-05-28 | 中国矿业大学(北京) | Dense medium separator and separation system |
| CN113210122A (en) * | 2021-04-27 | 2021-08-06 | 国能包头能源有限责任公司 | Heavy-medium shallow slot sorting machine and sorting method using same |
| WO2022188177A1 (en) * | 2021-03-12 | 2022-09-15 | 方甡 | Sorting apparatus and combustion furnace provided with same |
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