CN107185830A - It is a kind of to fluidize bed dry coal dressing machine from medium gas-particle two-phase - Google Patents
It is a kind of to fluidize bed dry coal dressing machine from medium gas-particle two-phase Download PDFInfo
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- CN107185830A CN107185830A CN201710574939.2A CN201710574939A CN107185830A CN 107185830 A CN107185830 A CN 107185830A CN 201710574939 A CN201710574939 A CN 201710574939A CN 107185830 A CN107185830 A CN 107185830A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B4/00—Separating solids from solids by subjecting their mixture to gas currents
- B07B4/08—Separating solids from solids by subjecting their mixture to gas currents while the mixtures are supported by sieves, screens, or like mechanical elements
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B11/00—Arrangement of accessories in apparatus for separating solids from solids using gas currents
- B07B11/06—Feeding or discharging arrangements
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Abstract
The present invention fluidizes bed dry coal dressing machine from medium gas-particle two-phase, including feed system, gas-solid fluidized bed and sorted product is gathered materials system, feed system connects gas-solid fluidized bed for its feed, sorted product system of gathering materials connects and gas-solid fluidized bed realizes that sorting is gathered materials, it is gas-solid fluidized bed including air distribution plate, air blower is provided with below air distribution plate, top is provided with dust-proof plate, arrangement air-introduced machine above dust-proof plate, air distribution plate is tilting, its top receives feeding, bottom is provided with deep bead, deep bead is L-shaped, slidably it is connected between air distribution plate, and glide direction is fluid bed axial direction.The present invention utilizes the density variation between coal and impurity spoil, make coal and spoil impurity etc. in fluid bed fluidization and stable be layered, it is final to separate cleaned coal and impurity spoil etc., sharpness of separation height high with the efficiency of separation, coal separation density level range accommodation of the same race is big, equipment investment construction cost is low, is easy to operation to repair, and energy consumption is low, independent of water resource, the advantages of energy-efficient.
Description
Technical field
The invention belongs to Coal Washing Techniques field, it is related to coal new dry process from the fluidisation bed dry method choosing of medium gas-particle two-phase
Coal, it is more particularly to a kind of to fluidize bed dry coal dressing machine from medium gas-particle two-phase.
Background technology
The rich coal resources of China, the need for economic development, coal mining amount is located at first place in the world for many years.At present
Coal washing mainly using the conventional coal cleaning process such as gravity treatment, flotation, magnetic separation, traditional coal preparation method in general, with yield
The advantages of stable, sharpness of separation height and ripe technical matters.But simultaneously also with energy consumption is higher, the efficiency of separation is relatively low, environment
The shortcoming for being difficult to overcome such as larger is polluted, particularly gravity treatment and flotation is big to water, medium and medicament dependence, what sorting was produced
Waste water environmental pollution is very big.Other cleaned coal dehydration can also increase energy consumption and production cost.With expanding economy, environment
Pressure is increasingly serious, therefore it is extremely urgent to develop new coal preparation method.
Gas-solid fluidized bed dry coal preparation is one of developing direction of coal in China washing, but be due to technical reason so far still
Popularization, particularly gas-particle two-phase fluidisation bed dry coal preparation technology are not industrialized is constantly in conceptual phase.Main reason is that coal
The complicated components such as impurity and spoil in charcoal, sometimes Ore-forming time is different, and the density of spoil has certain difference.It is this close
The sharpness of separation that the difference of degree frequently results in dry coal preparation is unstable, and therefore, it is difficult to realize industrial applications.
The content of the invention
In order to overcome the shortcoming of above-mentioned prior art, fluidized it is an object of the invention to provide one kind from medium gas-particle two-phase
Bed dry coal dressing machine, using the density variation between coal and impurity spoil, makes coal and spoil impurity etc. be flowed in fluid bed
State and it is stable be layered, finally separate cleaned coal and impurity spoil etc., with design science rationally, the efficiency of separation is high, and sorting is smart
Degree is high, and coal separation density level range accommodation of the same race is big, and equipment investment construction cost is low, is easy to operation to repair, and energy consumption is low, no
Water resource is relied on, any pollution is hardly caused to environment, it is energy-efficient to wait outstanding advantages.
To achieve these goals, the technical solution adopted by the present invention is：
It is a kind of to fluidize bed dry coal dressing machine, including feed system, gas-solid fluidized bed and sorted product from medium gas-particle two-phase
Gather materials system, the feed system connects gas-solid fluidized bed for its feed, sorted product system of gathering materials connects gas-solid fluidized bed reality
Now sorting is gathered materials, and described gas-solid fluidized bed including air distribution plate 4, the lower section of air distribution plate 4 is provided with air blower 5, and top is provided with dust-separation
Plate 7, the top of dust-proof plate 7 arrangement air-introduced machine 6, air distribution plate 4 is tilting, and its top receives feeding, and bottom is provided with deep bead 8, described
Deep bead 8 is L-shaped, is slidably connected between air distribution plate 4, and glide direction is fluid bed axial direction.
The feed system includes feeding funnel, there is some feeders 1 in feeding funnel, and the lower section of feeder 1 is set
There is oscillating feeder 3 fabric roller 2, the lower section of fabric roller 2, and the outlet of oscillating feeder 3 connects with the air distribution plate 4, realizes feed.
The oscillating feeder 3 is 5 °~25 ° continuously adjustabes with horizontal plane angle, and raw coal charcoal stream speed passes through vibrating feed
Machine 3 is adjusted.
The dust-proof plate 7, air distribution plate 4 are vertical with the vertical section of deep bead 8.
The gas-solid fluidized bed profile of bed body 13 is cylindrical shape, and its axis and horizontal sextant angle are between 15 ° to 75 °.
The air blower 5 has multiple, and for raw coal, stabilization fluid layering provides gas pressure, the dust-proof plate in fluid bed
Uniformly it is covered with sieve aperture on 7, the air-introduced machine 6 has multiple.
Wind distributing hole on the air distribution plate 4 is uniformly distributed, and wind distributing hole is equipped with blast cap, the side of the blast cap and top surface
Air holes is opened up, makes have stable gas pressure flow velocity inside fluid bed.
Wind distributing hole aperture on the air distribution plate 4 is consistent, or, along the blanking axis of air distribution plate 4, the cloth of middle part
Air holes aperture is more than the wind distributing hole aperture at both sides position.
The sorted product gathers materials system including cleaned coal room 10, middle coal room 11 and spoil room 12, from closely and being far sequentially arranged
Separated between the tail position of air distribution plate 4, adjacent chamber with vertical baffle, the height of the space bar of middle coal room 11 and spoil room 12
It is less than the height of the space bar of cleaned coal room 10 and middle coal room 11.
The lateral part of the deep bead 8 is set on air distribution plate 4 by slide rail or slide-bar.
The cleaned coal room 10, middle coal room 11 and spoil room 12 are divided between two upper and lower chambers, two upper and lower chambers and arranged under interval
Glassware 9.
Compared with prior art, the beneficial effects of the invention are as follows：
(1) present device is combined using gas-solid fluidized bed stabilization of fluidized and gravitational field, makes cleaned coal, mine tailing because of density
Difference stabilization in bed is layered and reached the purpose of sorting.
(2) present device is applicable mineral scope extensively, can realize real-time monitoring by bed point plate, sort adaptability
It is good.
(3) present device is novel, and fluid bed has angle with level；Bed point version can be according to actual delamination on
Lower movement；Feed and product collect whole encapsulation process.
(4) present device cost is relatively low, operation is achievable automates, and operability is good.
(5) totally-enclosed during present device coal separation, almost without any dust pollution during coal separation.
(6) present device is independent of water resource, therefore does not result in water pollution, is suitable for the coal point of water-deficient area
Choosing.
(7) present device belongs to dry coal preparation, falls within Composite Field coal separation, and operation energy consumption is low.
(8) present device, main equipment can be considered non-moving parts when running, and service life of equipment is long.
Brief description of the drawings
Fig. 1 is schematic structural view of the invention.
Fig. 2 is AA section views in Fig. 1.
Embodiment
Describe embodiments of the present invention in detail with reference to the accompanying drawings and examples.
As depicted in figs. 1 and 2, the present invention fluidizes bed drycleaned coal machine from medium gas-particle two-phase, mainly by feed system, gas-solid
Fluid bed and sorted product gather materials system three parts composition.Feed system mainly includes feeder 1, fabric roller 2, vibrating feed
Machine 3 and feeding funnel.It is gas-solid fluidized bed mainly to include air distribution plate 4, air blower 5, air-introduced machine 6, dust-proof plate 7, deep bead 8.Sorting
Product gathers materials system mainly including blanking device 9, cleaned coal room 10, middle coal room 11 and spoil room 12 etc..
In feed system, feed bin is that the outward appearance of feeding funnel is inverted terrace edge shape, and material is welded for NM400 wear-resisting steel plates
Connect and form, different according to process lot size, its length suitable for reading may be designed as 2000mm, 4000mm, 6000mm；A width of 1500mm,
2500mm, 3500mm, it is descended, and mouth is long to be separately designed as 1000mm, 2000mm, 3000mm；A width of 800mm, 1600mm,
3200mm, its height is between 2500mm~5000mm.Feeder 1, the and of fabric roller 2 are sequentially arranged inside feed bin from top to bottom
Vibration feeder 3.Feeder 1 is made up of by two the circular cone feed device moving up and down of solenoid valve control.Fabric roller 2
Raw coal charcoal material under sending can uniformly be cast to the oscillating feeder 3 of bottom.Oscillating feeder 3 and horizontal plane angle be 5 °~
25 ° of continuously adjustabes, raw coal charcoal stream speed can be adjusted by oscillating feeder 3.
The gas-solid fluidized bed profile of bed body 13 is cylindrical shape, and its axis and horizontal sextant angle are between 15 ° to 75 °, angle
Size can adjust according to cleaned coal in raw coal and mine tailing density variation size.According to the raw coal physical chemistry different with impurity in raw coal
Characteristic, fluidisation bed length be 9000mm~27000mm, its a diameter of 2000mm~5000mm, its material be thickness 0.3~
1.5mm Q235 steel plates.Fluid bed bed structure is air blower 5, air distribution plate 4, dust-proof plate 7, air-introduced machine 6, deep bead 8 respectively
Deng.For raw coal, the stabilization fluid layering in fluid bed provides gas pressure to air blower 5, and its quantity can be long according to the totality of fluid bed
Degree design varying number, schematic diagram of the present invention is three.The material of air distribution plate 4 is NM400 wear-resisting steel plates, and its wind distributing hole uniformly divides
Cloth, wind distributing hole aperture is consistent, or, along the blanking axis of air distribution plate 4, the wind distributing hole aperture of middle part is more than both sides position
Wind distributing hole aperture.Each wind distributing hole is equipped with blast cap, and the side of blast cap and top surface open up air holes, and main function is to make fluid bed
There is stable gas pressure flow velocity inside.The material of dust-proof plate 7 is NM400 wear-resisting steel plates, 0.3~1.5mm of thickness, on dust-proof plate 7
Uniformly it is covered with a diameter of 1mm~1.5mm sieve aperture.Air-introduced machine 6 is installed on fluid bed bed body top, and its quantity is according to fluid bed
Design of length and it is different, schematic diagram of the present invention be three.Deep bead 8, its material is Q235 steel plates or NM400 wear-resisting steel plates, height
Spend 50mm~100mm.Deep bead 8 can be moved along air distribution plate, changed respective regions cloth demeanour and enclosed.
Sorted product gather materials system peripheral structure and dividing plate material of gathering materials for NM300 steel plates or capital construction concrete masonry units
Into.Sorted product by taking three products as an example is gathered materials system, including cleaned coal room 10, middle coal room 11 and spoil room 12.Each product collection
Material room is divided into two upper and lower chambers, between arrangement intermittent blanking device 9.
The operation principle of the present invention：
The upper feeding chamber of feed system is connected with raw coal conveying equipment, and feeder 1 includes two drawing-in devices, is opened by electromagnetism
Control alternately feeding is closed, isolation fluid bed and the effect of feeding upper chamber are also acted as in addition to feeding function, it is ensured that pressed inside fluid bed
The stabilization of power and fluidised uniform.The fabric roller 2 of middle room further uniformly scrapes raw coal the oscillating feeder 3 for casting to lower room,
Oscillating feeder 3 can be by changing vibration frequency, different raw coal with feeding fluidized bed body different in flow rate.
Fluid bed produces stable air-flow in the presence of air blower 5 and air-introduced machine 6 on vertical direction inside bed body
, and by adjusting the power of blower fan and the inclination angle of fluid bed bed body, reach the spoil and cleaned coal in raw coal in airflow field
The purpose of layering is gradually stablized at middle part to end, so as to reach more preferable separating effect.
The generation of autogenous medium and circulation utilization method.Raw coal first enters into the airflow field in certain flow rate after fluid bed
In, granule materials are fluidized, wherein thinner coal dust and impurity particle are in fluidisation field in the presence of gas pressure and flow velocity,
Dielectric film filter system is entered by dust-proof plate 7 and air-introduced machine 6.Fine grained after recovery contains the coal dust of a small amount of impurity, matches somebody with somebody through level
After adjustment aridity, fed by Geldart-D particle to medium and supply air system, it is uniform with gases at high pressure to feed device by medium
After mixing, enter with pressure-air inside fluidized bed body.
Raw coal under the comprehensive functions such as stable airflow field, fluidised autogenous medium and gravitational field, cleaned coal in raw coal,
Middle coal and spoil are finally different and be layered by density.The final afterbody in fluid bed is less than close to the position of bed point plate, density
Cleaned coal Stable distritation is on top, and the medium middle coal of density is distributed in the middle part of fluid bed, the impurity material such as larger spoil of density
It is distributed in bottom.
Raw coal fluidized bed body internal stability layering after, as material is axially moved along bed body, between layers away from
From gradually increasing, when material is in fluid bed tailstock, when layering spacing reaches certain distance, by the airflow partition of deep bead 8, cause bed
Body trailing edge ascending air rapidly disappears, and now material is parabolically and fast by two kinds of compound actions of gravity and horizontal movement
Speed falls, and respectively falls in respective product and gather materials upper chamber.Material fluid bed tailstock layering spacing by tailstock side wall biography
Sensor is measured, and the size of layering spacing has air blower, air-introduced machine blast and the control of air distribution plate cloth wind effect.Deep bead 8 may move
Ground is arranged on air distribution plate 4, according to product stratification of wind situation, the scope that adjustable deep bead 8 is blocked.
Product gather materials system the effect of upper chamber blanking device and raw coal feeder it is the same, play sealing and the work of intermittent blanking
With.When product upper chamber accumulation of material certain altitude, blanking device automatically controls lower opening in electromagnetic valve.Dropped down onto when under product material
After certain altitude, blanking device, which is closed, to be continued to gather materials.When blanking device is closed, the product of lower room can be sent.
The following is two embodiments of the present invention, there is provided specific parameter in embodiment.
Embodiment 1
This example configures 3 from the gas-solid fluidized bed length 9000mm of medium, diameter 2500mm, air blower 2.2KW, blast 1.8MPa
Platform, air-introduced machine 1.5KW, blast 1.5MPa configures 3, and fluidized bed level angle is 65 °.Be crushed to below 50mm raw coal by
In belt conveyor feeding feeding hopper, air blower and air-introduced machine are then opened respectively, makes the airflow field stable homogeneous in fluid bed.
Open the run switch of feeder, fabric roller, vibration feeder and blanking device successively again.Such as schematic diagram, two feeder alternatings
Work, raw coal continuously by elevating hopper send into hopper.The raw coal of middle hopper is uniformly spread in the case where the rotation of fabric roller drives
On the oscillating feeder for the oscillating feeder for casting to hopper.Under oscillating feeder promotion, raw coal enters to become a mandarin with certain flow rate
Change in bed.
Raw coal produces fluidised form in fluid bed by self gravitation and from the buoyancy of medium fluidisation ascending air
Change, by adjusting oscillating feeder, air blower and the running parameter of air-introduced machine, make self gravitation and airflow buoyancy that raw coal is subject to
Make a concerted effort direction, just with fluid bed bed body axis parallel.Moved in the case where raw coal is by force action to fluid bed afterbody
During, cleaned coal, middle coal and spoil in raw coal gradually produce stable layering.Because cleaned coal density is less than middle coal, middle coal
Density is less than spoil density, therefore delamination is cleaned coal, middle coal and spoil respectively from top to bottom.
According to the layering clearance detector of fluid bed, the clearance distance of layering is detected, is moved by automatic control system
Deep bead is to fluid bed afterbody at edge 25mm.Raw coal completely after layering loses the buoyancy from medium stream, because of itself
Gravity and horizontal initial rate effect and parabolically rapid sedimentation, three kinds of products respectively fall in corresponding product and gathered materials the upper chamber of room.
When different product arrives certain altitude in upper chamber accumulation of gathering materials, blanking device falls automatically, and product is put into lower room.Upper chamber product is several
All it is put into behind lower room, blanking device rises cutting die.Blanking is closed when blanking device rises, when the upper and lower room in the room that gathers materials completely cuts off,
Room door can be opened under product, and the products such as cleaned coal, middle coal and spoil are transported.
The parameter and valve of all devices are manually controllable or automatically control, when sorting terminates shutdown, close feed successively
Glassware, fabric roller, oscillating feeder, air blower, air-introduced machine, blanking device.Sorted experiment, treating capacity is about per hour for the coal picker
For 130t.Sub-elect spoil impurity content in cleaned coal and be less than 6%, sub-elect middle gangue impurity content less than 4.2%, sub-elect
The content of spoil coal is less than 6%.
Embodiment 2
This example is configured from the gas-solid fluidized bed length 12000mm of medium, diameter 2500mm, air blower 2.2KW, blast 1.8MPa
4, air-introduced machine 1.5KW, blast 1.5MPa configures 4, and fluidized bed level angle is 70 °.The raw coal for being crushed to below 50mm
In belt conveyor feeding feeding hopper, air blower and air-introduced machine are then opened respectively, make the airflow field in fluid bed homogeneous steady
It is fixed.Open the run switch of feeder, fabric roller, vibration feeder and blanking device successively again.Such as schematic diagram, two feeders are handed over
Temporary substitute make, raw coal continuously by elevating hopper send into hopper.The raw coal of middle hopper is uniform in the case where the rotation of fabric roller drives
Broadcast sowing to the oscillating feeder of the oscillating feeder of hopper.Under oscillating feeder promotion, raw coal is entered with certain flow rate
In fluid bed.
Raw coal produces fluidised form in fluid bed by self gravitation and from the buoyancy of medium fluidisation ascending air
Change, by adjusting oscillating feeder, air blower and the running parameter of air-introduced machine, make self gravitation and airflow buoyancy that raw coal is subject to
Make a concerted effort direction, just with fluid bed bed body axis parallel.Moved in the case where raw coal is by force action to fluid bed afterbody
During, cleaned coal, middle coal and spoil in raw coal gradually produce stable layering.Because cleaned coal density is less than middle coal, middle coal
Density is less than spoil density, therefore delamination is cleaned coal, middle coal and spoil respectively from top to bottom.
According to the layering clearance detector of fluid bed, the clearance distance of layering is detected, is moved by automatic control system
Deep bead is to fluid bed afterbody at edge 55mm.Raw coal completely after layering loses the buoyancy from medium stream, because of itself
Gravity and horizontal initial rate effect and parabolically rapid sedimentation, three kinds of products respectively fall in corresponding product and gathered materials the upper chamber of room.
When different product arrives certain altitude in upper chamber accumulation of gathering materials, blanking device falls automatically, and product is put into lower room.Upper chamber product is several
All it is put into behind lower room, blanking device rises cutting die.Blanking is closed when blanking device rises, when the upper and lower room in the room that gathers materials completely cuts off,
Room door can be opened under product, and the products such as cleaned coal, middle coal and spoil are transported.
The parameter and valve of all devices are manually controllable or automatically control, when sorting terminates shutdown, close feed successively
Glassware, fabric roller, oscillating feeder, air blower, air-introduced machine, blanking device.Sorted experiment, treating capacity is about per hour for the coal picker
For 200t.Sub-elect spoil impurity content in cleaned coal and be less than 4.7%, sub-elect middle gangue impurity content less than 3.1%, sorting
The content for going out coal in spoil is less than 3%.
By experimental verification, both examples above can realize high efficiency, high-precision sorting.
Claims (10)
1. a kind of fluidize bed dry coal dressing machine, including feed system, gas-solid fluidized bed and sorted product collection from medium gas-particle two-phase
Material system, the feed system connects gas-solid fluidized bed for its feed, and sorted product system of gathering materials connects gas-solid fluidized bed realization
Sorting is gathered materials, it is characterised in that described gas-solid fluidized bed including air distribution plate (4), air distribution plate (4) lower section is provided with air blower (5),
Top is provided with arrangement air-introduced machine (6) above dust-proof plate (7), dust-proof plate (7), and air distribution plate (4) is tilting, and its top receives feeding,
Bottom is provided with deep bead (8), and the deep bead (8) is L-shaped, is slidably connected between air distribution plate (4), and is slided
Direction is fluid bed axial direction.
2. fluidize bed dry coal dressing machine from medium gas-particle two-phase according to claim 1, it is characterised in that the feed system
Including feeding funnel, there are some feeders (1) in feeding funnel, the lower section of feeder (1) sets fabric roller (2), fabric roller
(2) there is oscillating feeder (3) lower section, and the outlet of oscillating feeder (3) connects with the air distribution plate (4), realizes feed.
3. fluidize bed dry coal dressing machine from medium gas-particle two-phase according to claim 2, it is characterised in that the vibrating feed
Machine (3) is 5 °~25 ° continuously adjustabes with horizontal plane angle, and raw coal charcoal stream speed is adjusted by oscillating feeder (3).
4. fluidize bed dry coal dressing machine from medium gas-particle two-phase according to claim 1, it is characterised in that the dust-proof plate
(7), air distribution plate (4) is vertical with the vertical section of deep bead (8).
5. fluidize bed dry coal dressing machine from medium gas-particle two-phase according to claim 1, it is characterised in that described gas-solid fluidized
Bed body (13) profile of bed is cylindrical shape, and its axis and horizontal sextant angle are between 15 ° to 75 °.
6. fluidize bed dry coal dressing machine from medium gas-particle two-phase according to claim 1, it is characterised in that the air blower
(5) have multiple, stabilization fluid layering provides and is uniformly covered with sieve on gas pressure, the dust-proof plate (7) in fluid bed for raw coal
Hole, the air-introduced machine (6) has multiple.
7. fluidize bed dry coal dressing machine from medium gas-particle two-phase according to claim 1, it is characterised in that the air distribution plate
(4) wind distributing hole on is uniformly distributed, and wind distributing hole is equipped with blast cap, and the side of the blast cap and top surface open up air holes, make stream
Changing has stable gas pressure flow velocity inside bed.
8. fluidize bed dry coal dressing machine from medium gas-particle two-phase according to claim 7, it is characterised in that the air distribution plate
(4) the wind distributing hole aperture on is consistent, or, along the blanking axis of air distribution plate (4), the wind distributing hole aperture of middle part is more than two
The wind distributing hole aperture of side.
9. fluidize bed dry coal dressing machine from medium gas-particle two-phase according to claim 1, it is characterised in that the sorted product
System of gathering materials includes cleaned coal room (10), middle coal room (11) and spoil room (12), and the lateral part of the deep bead (8) passes through slide rail
Or slide-bar is set on air distribution plate (4).
10. fluidize bed dry coal dressing machine from medium gas-particle two-phase according to claim 9, it is characterised in that the cleaned coal room
(10), middle coal room (11) and spoil room (12), which are divided between two upper and lower chambers, two upper and lower chambers, arranges intermittent blanking device (9).
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107808039A (en) * | 2017-10-13 | 2018-03-16 | 武汉钢铁有限公司 | A kind of design method of fluidized bed drying classifying equipoment |
| CN110788001A (en) * | 2019-11-04 | 2020-02-14 | 中冶长天国际工程有限责任公司 | Winnowing device for removing fine particle dust in lime kiln, control method and lime kiln |
| CN113546833A (en) * | 2021-02-01 | 2021-10-26 | 鄂尔多斯市中钰泰德煤炭有限公司 | Air bed layer type gravity winnowing machine |
| CN115364994A (en) * | 2022-10-21 | 2022-11-22 | 天津美腾科技股份有限公司 | Sorting apparatus |
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| CN110788001A (en) * | 2019-11-04 | 2020-02-14 | 中冶长天国际工程有限责任公司 | Winnowing device for removing fine particle dust in lime kiln, control method and lime kiln |
| CN110788001B (en) * | 2019-11-04 | 2022-08-16 | 中冶长天国际工程有限责任公司 | Winnowing device for removing fine particle dust in lime kiln, control method and lime kiln |
| CN113546833A (en) * | 2021-02-01 | 2021-10-26 | 鄂尔多斯市中钰泰德煤炭有限公司 | Air bed layer type gravity winnowing machine |
| CN115364994A (en) * | 2022-10-21 | 2022-11-22 | 天津美腾科技股份有限公司 | Sorting apparatus |
| CN115364994B (en) * | 2022-10-21 | 2023-02-10 | 天津美腾科技股份有限公司 | Sorting apparatus |
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