CN109158316A - A kind of compact combination formula powder concentrator for bed-grinding system - Google Patents
A kind of compact combination formula powder concentrator for bed-grinding system Download PDFInfo
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- CN109158316A CN109158316A CN201811043776.6A CN201811043776A CN109158316A CN 109158316 A CN109158316 A CN 109158316A CN 201811043776 A CN201811043776 A CN 201811043776A CN 109158316 A CN109158316 A CN 109158316A
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- 239000000843 powder Substances 0.000 title claims abstract description 218
- 230000003068 static effect Effects 0.000 claims abstract description 78
- 239000000463 material Substances 0.000 claims abstract description 39
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims abstract description 21
- 235000017491 Bambusa tulda Nutrition 0.000 claims abstract description 21
- 241001330002 Bambuseae Species 0.000 claims abstract description 21
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims abstract description 21
- 239000011425 bamboo Substances 0.000 claims abstract description 21
- 230000005540 biological transmission Effects 0.000 claims description 15
- 238000007599 discharging Methods 0.000 claims description 9
- 230000007480 spreading Effects 0.000 claims description 5
- 230000007246 mechanism Effects 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 4
- 230000001133 acceleration Effects 0.000 description 8
- 239000006185 dispersion Substances 0.000 description 8
- 239000008187 granular material Substances 0.000 description 8
- 239000002245 particle Substances 0.000 description 8
- 238000010586 diagram Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 239000004568 cement Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000003467 diminishing effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000012716 precipitator Substances 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 241000032572 Conus betulinus Species 0.000 description 1
- 210000000988 bone and bone Anatomy 0.000 description 1
- 230000004087 circulation Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 230000001839 systemic circulation Effects 0.000 description 1
Classifications
-
- 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
- B07B9/00—Combinations of apparatus for screening or sifting or for separating solids from solids using gas currents; General arrangement of plant, e.g. flow sheets
- B07B9/02—Combinations of similar or different apparatus for separating solids from solids using gas currents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C21/00—Disintegrating plant with or without drying of the material
-
- 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
-
- 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
- B07B11/02—Arrangement of air or material conditioning accessories
-
- 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
-
- 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
- B07B7/00—Selective separation of solid materials carried by, or dispersed in, gas currents
- B07B7/08—Selective separation of solid materials carried by, or dispersed in, gas currents using centrifugal force
- B07B7/083—Selective separation of solid materials carried by, or dispersed in, gas currents using centrifugal force generated by rotating vanes, discs, drums, or brushes
Landscapes
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Combined Means For Separation Of Solids (AREA)
Abstract
The present invention relates to a kind of compact combination formula powder concentrators for bed-grinding system, belong to material and select powder equipment technical field, including static powder separating machine and dynamic powder concentrator, the shape of static powder separating machine is bamboo hat-shaped, and static powder separating machine is placed in the top of dynamic powder concentrator；Static powder separating machine includes shell one, feed pipe, powder selection device and support frame；The lower part of feed pipe, which is equipped with, forces material-strewing device, and powder selection device is in truncated cone-shaped, and powder selection device is broken up blade by several static state being sequentially stacked in " bamboo hat " shape and formed, and two adjacent static state break up and are equipped with the channel that gas and material pass through between blade；Dynamic powder concentrator includes shell two, rotor, stator blade, air inlet, fine powder hopper, middle coarse powder hopper and coarse powder hopper；Stator blade is in tilted layout along rotor direction of rotation, and air inlet is located at the upper side of dynamic powder concentrator.For Combined powder concentrator of the invention compared with conventional ASSEMBLE powder concentrator, powder concentrator height can reduce by 36%~46%.
Description
Technical field
The invention belongs to materials to select powder equipment field, more particularly to a kind of bed-grinding system for being suitable for big cycle volume
Two-stage select powder equipment.
Background technique
Static powder separating machine add the united Combined powder concentrator of dynamic powder concentrator be widely used in roll squeezer, Conus betulinus and
In the grinding system of whole outer circulation Vertical Mills, especially final grinding system of roll squeezer is extensive in the production process of cement slurry
Using.Traditional powder concentrator majority is sorted using the two-stage that the dynamic powder concentrator of V-type powder concentrator and lower air inlet forms, and realizes systemic circulation
The grinding system of load selects powder；By the preliminary sorting of V-type powder concentrator, the feeding concentration of dynamic powder concentrator is greatly reduced,
Grinding efficiency is guaranteed.
But with the increase of V-type static powder separating machine specifications and models, the increased amplitude of the width of V-type static powder separating machine compared with
Small, height but increases more, and main cause allows for the dispersibility of material in the direction of the width with it in the height direction
Dispersibility is compared and wants poor.
By taking cement producing line as an example, with the increasingly increase of production line scale, final grinding system of roll squeezer V-type static powder separating machine
The drawbacks of Combined powder concentrator formed with dynamic powder concentrator, is also more and more obvious.The height of Combined powder concentrator is higher and higher,
Bring equipment investment, construction investment will increase much therewith；Requirement of the large-tonnage final grinding system of roll squeezer to elevator
Increasingly harsher, elevator will realize very high hoisting depth in the case where very big hoisting power, this chain to elevator
Item, the design requirement of transmission are all very high.It is the height for reducing elevator in the design of early stage, using the design side of double elevators
Case, although the height of separate unit elevator reduces, the gross investment of equipment be will increase very much.Therefore, height is designed substantially to drop
Low compact combined type powder concentrator becomes to be highly desirable.
Summary of the invention
In view of the problems of the existing technology, the present invention provides a kind of compact combination formulas for bed-grinding system
Powder concentrator, the Combined powder concentrator with traditional V-type static powder separating machine add dynamic powder concentrator form Combined powder concentrator compared with,
In rotor height 2500mm, the identical situation of root diameter 4100mm, Combined powder concentrator height can reduce by 36%~46%.
The invention is realized in this way a kind of compact combination formula powder concentrator for bed-grinding system, including static state
Powder concentrator and dynamic powder concentrator, it is characterised in that: the shape of the static powder separating machine is bamboo hat-shaped, and the static powder separating machine is placed in
The top of dynamic powder concentrator；
The static powder separating machine includes shell one, feed pipe, powder selection device and support frame；The shape of the shell one is
Cone, the feed pipe are set to the top of static powder separating machine, and the lower part of the feed pipe, which is equipped with, forces material-strewing device, described
Material-strewing device and dynamic powder concentrator is forced to share a transmission shaft, the transmission shaft is driven by transmission mechanism and rotated, the pressure
Material-strewing device is located at the top of powder selection device；The powder selection device is in truncated cone-shaped, and the powder selection device is by suitable in " bamboo hat " shape
Secondary several static state being stacked break up blade composition, and two adjacent static state are broken up logical equipped with gas and material between blade
The channel crossed, several described static state are broken up blade and are mounted on support frame；
The dynamic powder concentrator includes shell two, rotor, stator blade, air inlet, fine powder hopper, middle coarse powder hopper and coarse powder
Hopper；The shape of the shell two is reversed round bench shaped, and the top of the shell two and the bottom end of powder selection device connect, described turn
Son is mounted on transmission shaft, and the stator blade is arranged in the periphery of rotor and is mounted on the annular frame being fixedly connected with shell two
Interior, the stator blade is in tilted layout along rotor direction of rotation, and the air inlet is located at the upper side of dynamic powder concentrator, described thin
The top of powder bucket is connected to internal rotor, and the bottom end of the fine powder hopper is connected to lower wind pipe, the middle coarse powder hopper
Top connect with the bottom end of shell two, the coarse powder hopper passes through between the air inlet duct and shell one and powder selection device of air inlet
Material channel connection.
Material into feed pipe is broken up under the action of forcing material-strewing device into the static state of " bamboo hat " arrangements
The dispersion powder-separating area of the powder selection device of blade composition, material break up blade under powder selection device along the static state of " bamboo hat " arrangements
Edge dispersion, during material and static state are broken up blade collision and are dispersed, fine grained by by outside powder selection device towards selecting powder
The gas flowed in device is blown into inside powder selection device, and coarse granule breaks up blade along static state and continues to fall step by step downwards and divide again
Choosing；Coarse granule, which falls and leaves the static state that " bamboo hat " shape is arranged, breaks up the air inlet duct that blade enters air inlet, across air inlet duct
Coarse granule eventually falls into the taper coarse powder hopper of bottom, and powder concentrator is discharged through the airlock of taper coarse powder feed hopper bottom；Quilt
The fine grained that gas is brought into powder selection device surrounds from dynamic powder concentrator top into shell two with stator blade diminishing
In air duct；Fine grained enters the stator blade of dynamic powder concentrator from air duct, and the particle edge after being inclined by the stator blade acceleration of arrangement turns
Sub- rotation direction flowing；Fine grained is sucked into rotor after air-flow acceleration, and the fine grained for being sucked into rotor is selected with gas from dynamic
The lower wind pipe of powder machine enters finished product collecting device (cyclone cylinder, dust-precipitator), selects powder exhaust gas to be discharged through air-introduced machine, coarse granule quilt
Slowed down again by stator blade after the secondary acceleration of rotor, finally slide to middle coarse powder hopper, and the lock wind of coarse powder feed hopper bottom fills in warp
Set discharge powder concentrator.
In the above-mentioned technical solutions, it is preferred that the static state break up blade along material the downward edge at the top of the powder selection device
Flow direction and gradually encrypt arrangement.When so that the top bed of material is thicker, normal throw is maximum between static state breaks up blade, more conducively thick
The acceleration of bed of material particle promotes the dispersion of particle, and when closer to rotary table lower edge, particle has obtained enough dispersions,
Static state also encrypts therewith between breaing up blade, and normal throw also progressivelyes reach minimum, can extend its residence time, is more advantageous to thin
The separation of grain.
In the above-mentioned technical solutions, it is preferred that the top for forcing material-strewing device is cone, and conical surface can be set
Set discharging harrow nail.
In the above-mentioned technical solutions, it is preferred that the static state break up the side angle of blade and powder selection device be 15 °~
25°。
In the above-mentioned technical solutions, it is preferred that the side of the powder selection device and bottom edge angle are 45 °~60 °.
In the above-mentioned technical solutions, it is preferred that the side of the shell one and the side angle of powder selection device are 2 °~6 °.
When material moisture is big, mobility is worst, the side of powder selection device and bottom edge angle are designed as 60 °, force spreading
The conical surface of device, which increases, forces discharging harrow nail；For guarantee material can smooth flow, static state breaks up blade and powder selection device
Side angle be 20 °；The side of conical air channel shell one and powder selection device side angle are designed as 2 °, and static state is broken up at this time
The side angle of blade side and conical air channel shell one is minimum, is 17 °, and small angle can guarantee bigger vector wind speed,
Sorting capability is stronger；
When material moisture is small, good fluidity when, the side of powder selection device and bottom edge angle are designed as 45 °, force spreading dress
It sets conical surface and does not design pressure discharging harrow nail；To guarantee that material can have certain residence time, static state breaks up blade and choosing
The side angle of powder device is 25 °；The side of conical air channel shell one and powder selection device side angle are designed as 6 °, quiet at this time
State breaks up blade and the side angle of conical air channel shell one is maximum, is 31 °, big angle can guarantee lesser vector wind
Speed, sorting capability are most weak；
Different design parameters corresponds to the material of different characteristics, in the case where guaranteeing equipment performance, realizes equipment investment
Minimum.
In the above-mentioned technical solutions, it is preferred that the tilt adjustable section of the stator blade, tilt angle be 55 °~
65°.Stator blade is in tilted layout, and can make to form necking between two stator blades, have the function of la farr pipe, to the air-flow passed through
There is certain acceleration.
In the above-mentioned technical solutions, it is preferred that be respectively provided at the bottom discharge port of the middle coarse powder hopper and coarse powder hopper
There is airlock.It prevents from leaking into unwanted air from bottom feed opening.
In the above-mentioned technical solutions, it is preferred that according to the needs for selecting powder specification, the air inlet can be used single air inlet,
Double air inlets, three air inlets or four air inlets.
The advantages and positive effects of the present invention are:
1) bamboo hat-shaped static powder separating machine provided by the invention, the static powder separating machine can be designed according to the flow behavior of material
Its outer dimension, to guarantee that it has good adaptability to the material of different characteristics；
2) present invention, which devises, forces device for discharging to guarantee that material can be even into static powder-separating area domain；
3) dynamic powder concentrator of the invention uses upper air inlet, lower air-out type, selects " bamboo hat " shape static powder separating machine and dynamic
Powder machine realizes compact package, finds through comparing with the Combined powder concentrator of current identical rotor specification, height can reduce
36%~46%, the reduction of device height will bring being greatly reduced for construction investment and equipment investment, with considerable economy and
Social benefit.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of Combined powder concentrator provided in an embodiment of the present invention；
Fig. 2 is the side view of Fig. 1；
Fig. 3 is the top view of Fig. 1；
Fig. 4 is the structural schematic diagram that static powder separating machine provided in an embodiment of the present invention is in 60 ° of arrangements；
Fig. 5 is the top view of Fig. 4；
Fig. 6 is the structural schematic diagram that static powder separating machine provided in an embodiment of the present invention is in 45 ° of arrangements；
Fig. 7 is the stator blade of dynamic powder concentrator provided in an embodiment of the present invention and the structural schematic diagram of rotor blade；
Fig. 8 is the A-A cross-sectional view of stator blade in Fig. 7；
Fig. 9 is the gas flow figure of Combined powder concentrator provided in an embodiment of the present invention；
Figure 10 is the flow direction of material figure of Combined powder concentrator provided in an embodiment of the present invention.
In figure: 1- shell one, 2- feed pipe, 3- static state break up blade, and 4- forces material-strewing device, 41- discharging harrow nail, 5- shell
Body two, 6- rotor, 7- stator blade, 8- air inlet, 9- fine powder hopper, coarse powder hopper in 10-, 11- coarse powder hopper, outlet air under 12-
Pipeline, 13- transmission shaft, 14- transmission mechanism, 15- airlock.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to embodiments, and cooperate attached
The present invention will be described in further detail for figure.It should be appreciated that specific embodiment described herein is only used to explain this hair
It is bright, it is not intended to limit the present invention.
In the description of the present invention, it should be noted that the orientation or position of the instructions such as term " on ", "lower", "inner", "outside"
Setting relationship is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of description of the present invention and simplification of the description, rather than
The device or element of indication or suggestion meaning must have a particular orientation, be constructed and operated in a specific orientation, therefore cannot
It is interpreted as limitation of the present invention.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " connected " " connects
Connect " it shall be understood in a broad sense, for example, it may be being fixedly connected, it may be a detachable connection, or be integrally connected；It can be machine
Tool connection, is also possible to be electrically connected；It can be directly connected, two members can also be can be indirectly connected through an intermediary
Connection inside part.For the ordinary skill in the art, above-mentioned term can be understood in the present invention with concrete condition
Concrete meaning.
Fig. 1~8 are please referred to, the present embodiment provides a kind of compact combination formula powder concentrator for bed-grinding system, packets
Static powder separating machine and dynamic powder concentrator are included, the shape of static powder separating machine is bamboo hat-shaped, and static powder separating machine is placed in dynamic powder concentrator
Top；
Static powder separating machine includes shell one, feed pipe, powder selection device and support frame；The shape of shell one is cone,
Feed pipe is set to the top of static powder separating machine, and the lower part of feed pipe, which is equipped with, forces material-strewing device, forces material-strewing device and dynamic
Powder concentrator shares a transmission shaft, and transmission shaft is driven by transmission mechanism and rotated, and material-strewing device is forced to be located at the top of powder selection device；
Powder selection device is in truncated cone-shaped, and powder selection device is broken up blade by several static state being sequentially stacked in " bamboo hat " shape and formed,
Two adjacent static state break up and are equipped with the channel that gas and material pass through between blade, several static state break up blade and are mounted on branch
On support bone frame；
Dynamic powder concentrator includes shell two, rotor, stator blade, air inlet, fine powder hopper, middle coarse powder hopper and coarse powder material
Bucket；The shape of shell two is reversed round bench shaped, and the top of shell two and the bottom end of powder selection device connect, and rotor is mounted on transmission shaft
On, stator blade is arranged in the periphery of rotor and is mounted in the annular frame being fixedly connected with shell two, and stator blade is revolved along rotor
Turn direction inclination arrangement, air inlet is located at the upper side of dynamic powder concentrator, and the top of fine powder hopper is connected to internal rotor, carefully
The bottom end of powder bucket is connected to lower wind pipe, and the top of middle coarse powder hopper is connect with the bottom end of shell two, and coarse powder hopper passes through
Material channel between the air inlet duct of air inlet and shell one and powder selection device is connected to.
Fig. 9 and 10 are please referred to, the material into feed pipe enters under the action of forcing material-strewing device in " bamboo hat " shape
The static state of arrangement breaks up the dispersion powder-separating area of the powder selection device of blade composition, and material breaks up leaf along the static state of " bamboo hat " arrangements
Piece disperses to powder selection device lower edge, and during material and static state break up blade collision dispersion, fine grained is by by selecting powder to fill
Set outside be blown into inside powder selection device towards the gas flowed in powder selection device, coarse granule along static state break up blade continue downwards by
Grade is fallen and is sorted again；Coarse granule, which falls and leaves the static state that " bamboo hat " shape is arranged, breaks up the air inlet that blade enters air inlet
Road eventually falls into the taper coarse powder hopper of bottom across the coarse granule of air inlet duct, and fills through the lock wind of taper coarse powder feed hopper bottom
Set discharge powder concentrator；Enter shell two at the top of dynamic powder concentrator by the fine grained that gas is brought into powder selection device to enclose with stator blade
At diminishing air duct in；Fine grained enters the stator blade of dynamic powder concentrator from air duct, and the stator blade for being inclined by arrangement adds
Particle after speed is flowed along rotor rotation direction；Fine grained is sucked into rotor after air-flow acceleration, is sucked into the fine grained of rotor
Enter finished product collecting device (cyclone cylinder, dust-precipitator) from the lower wind pipe of dynamic powder concentrator with gas, selects powder exhaust gas through air inducing
Machine discharge, coarse granule are slowed down by stator blade again after the secondary acceleration of rotor, finally slide to middle coarse powder hopper, and coarse powder material in warp
Powder concentrator is discharged in the airlock of bucket bottom.
As preferred embodiment, static state break up blade along material at the top of the powder selection device downward edge flow direction and by
Gradually encryption arrangement.When so that the top bed of material is thicker, static state breaks up that normal throw between blade is maximum, more conducively deep bed sintering particle plus
Speed promotes the dispersion of particle, and when closer to rotary table lower edge, particle has obtained enough dispersions, and static state breaks up blade
Between also encrypt therewith, normal throw also progressivelyes reach minimum, can extend its residence time, is more advantageous to fine grain separation.
As preferred embodiment, force the top of material-strewing device for cone, the settable discharging harrow nail of conical surface.
As preferred embodiment, it is 15 °~25 ° that static state, which breaks up blade and the side angle of powder selection device,.
As preferred embodiment, the side of powder selection device and bottom edge angle are 45 °~60 °.
As preferred embodiment, the side of shell one and the side angle of powder selection device are 2 °~6 °.
When material moisture is big, mobility is worst, the side of powder selection device and bottom edge angle are designed as 60 °, force spreading
The conical surface of device, which increases, forces discharging harrow nail, and Fig. 4 is shown in specific design；For guarantee material can smooth flow, static state breaks up
The side angle of blade and powder selection device is 15 °；The side of conical air channel shell one is designed as with powder selection device side angle
2 °, the side angle minimum for breaing up blade side and conical air channel shell one static at this time, is 17 °, small angle can guarantee
Bigger vector wind speed, sorting capability are stronger.
When material moisture is small, good fluidity when, the side of powder selection device and bottom edge angle are designed as 45 °, force spreading dress
It sets conical surface and does not design pressure discharging harrow nail, Fig. 6 is shown in specific design；It is quiet to guarantee that material can have certain residence time
It is 25 ° that state, which breaks up blade and the side angle of powder selection device,；The side of conical air channel shell one and powder selection device side angle
6 ° are designed as, the side angle maximum for breaing up blade and conical air channel shell one static at this time, is 31 °, big angle can be protected
Lesser vector wind speed is demonstrate,proved, sorting capability is most weak.
Different design parameters corresponds to the material of different characteristics, in the case where guaranteeing equipment performance, realizes equipment investment
Minimum.
As preferred embodiment, the tilt adjustable section of stator blade, tilt angle is 55 °~65 °, more preferably
62°.Stator blade is in tilted layout, and can make to form necking between two stator blades, have the function of la farr pipe, to the air-flow passed through
There is certain acceleration.
As preferred embodiment, airlock is provided at the bottom discharge port of middle coarse powder hopper and coarse powder hopper.
It prevents from leaking into unwanted air from bottom feed opening.
As preferred embodiment, according to the needs for selecting powder specification, single air inlet, double air inlets, three is can be used in air inlet
Air inlet or four air inlets.The present embodiment is using double air inlets, after gas passes through scroll casing shape wind inlet channel, into conical air duct
In shell one.
" bamboo hat " shape static powder separating machine of the invention is shown in Table with existing V-type static powder separating machine (TAS-410) parameter comparison
1:
Table 1
Note: " bamboo hat " shape static powder separating machine diffusional area is the rotary table side surface area of powder selection device.
It can be derived that from table 1, be 4100mm with root diameter, be highly the matched V-type of the dynamic powder concentrator of 2500mm
The discovery of static powder separating machine parameter comparison, when powder selection device side and bottom edge angle are 45 °, point of " bamboo hat " shape static powder separating machine
Scattered area is approximately 1.46 times of V-type static powder separating machine；When powder selection device side and bottom edge angle are 60 °, " bamboo hat " shape is static
The diffusional area of powder concentrator is approximately 2.13 times of V-type static powder separating machine；For diffusional area, " bamboo hat " shape static powder separating machine
Design is better than V-type static powder separating machine.
Finally, it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although
Present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: it still may be used
To modify to technical solution documented by previous embodiment, or some or all of the technical features are equal
Replacement, and these are modified or replaceed, the model for technical solution of the embodiment of the present invention that it does not separate the essence of the corresponding technical solution
It encloses.
Claims (9)
1. a kind of compact combination formula powder concentrator for bed-grinding system, including static powder separating machine and dynamic powder concentrator,
Be characterized in that: the shape of the static powder separating machine is bamboo hat-shaped, and the static powder separating machine is placed in the top of dynamic powder concentrator；
The static powder separating machine includes shell one, feed pipe, powder selection device and support frame；The shape of the shell one is circular cone
Shape, the feed pipe are set to the top of static powder separating machine, and the lower part of the feed pipe, which is equipped with, forces material-strewing device, the pressure
Material-strewing device and dynamic powder concentrator share a transmission shaft, and the transmission shaft is driven by transmission mechanism and rotated, the pressure spreading
Device is located at the top of powder selection device；The powder selection device is in truncated cone-shaped, and the powder selection device in " bamboo hat " shape by sequentially folding
Several static state of arrangement are added to break up blade composition, two adjacent static state, which are broken up, is equipped with what gas and material passed through between blade
Channel, several described static state are broken up blade and are mounted on support frame；
The dynamic powder concentrator includes shell two, rotor, stator blade, air inlet, fine powder hopper, middle coarse powder hopper and coarse powder material
Bucket；The shape of the shell two is reversed round bench shaped, and the top of the shell two and the bottom end of powder selection device connect, the rotor
It is mounted on transmission shaft, the stator blade is arranged in the periphery of rotor and is mounted on the annular frame being fixedly connected with shell two
Interior, the stator blade is in tilted layout along rotor direction of rotation, and the air inlet is located at the upper side of dynamic powder concentrator, described thin
The top of powder bucket is connected to internal rotor, and the bottom end of the fine powder hopper is connected to lower wind pipe, the middle coarse powder hopper
Top connect with the bottom end of shell two, the coarse powder hopper passes through between the air inlet duct and shell one and powder selection device of air inlet
Material channel connection.
2. the compact combination formula powder concentrator according to claim 1 for bed-grinding system, it is characterised in that: described
Static state breaks up blade and gradually encrypts arrangement from downward edge flow direction at the top of powder selection device along material.
3. the compact combination formula powder concentrator according to claim 1 for bed-grinding system, it is characterised in that: described
The top for forcing material-strewing device is cone, the settable discharging harrow nail of conical surface.
4. the compact combination formula powder concentrator according to claim 1 for bed-grinding system, it is characterised in that: described
It is 15 °~25 ° that static state, which breaks up blade and the side angle of powder selection device,.
5. the compact combination formula powder concentrator according to claim 1 for bed-grinding system, it is characterised in that: described
The side of powder selection device and bottom edge angle are 45 °~60 °.
6. the compact combination formula powder concentrator according to claim 1 for bed-grinding system, it is characterised in that: described
The side of shell one and the side angle of powder selection device are 2 °~6 °.
7. the compact combination formula powder concentrator according to claim 1 for bed-grinding system, it is characterised in that: described
The tilt adjustable section of stator blade, tilt angle are 55 °~65 °.
8. the compact combination formula powder concentrator according to claim 1 for bed-grinding system, it is characterised in that: described
Airlock is provided at the bottom discharge port of middle coarse powder hopper and coarse powder hopper.
9. the compact combination formula powder concentrator according to claim 1 for bed-grinding system, it is characterised in that: described
Single air inlet, double air inlets, three air inlets or four air inlets can be used in air inlet.
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| CN111112077A (en) * | 2019-12-30 | 2020-05-08 | 嘉兴新博信息科技有限公司 | Rotor type metal mineral powder selecting machine |
| CN113351480A (en) * | 2021-05-13 | 2021-09-07 | 天津水泥工业设计研究院有限公司 | Two-stage dynamic rotor powder concentrator capable of adjusting grain size grading of finished products |
| CN113369140A (en) * | 2021-07-20 | 2021-09-10 | 天津水泥工业设计研究院有限公司 | Design method of superfine powder concentrator based on thickness separation of semi-finished products |
| CN113953063A (en) * | 2021-10-18 | 2022-01-21 | 天津水泥工业设计研究院有限公司 | Drying, grinding and powder selecting integrated ball milling system for high-moisture materials |
| CN113953065A (en) * | 2021-10-18 | 2022-01-21 | 天津水泥工业设计研究院有限公司 | Combined grinding system with pre-grinding equipment |
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| CN115888908B (en) * | 2021-09-30 | 2023-10-03 | 北京喜诺德科技有限公司 | Low-abrasion anti-blocking external circulation vertical roller mill system and application thereof |
| CN113953063A (en) * | 2021-10-18 | 2022-01-21 | 天津水泥工业设计研究院有限公司 | Drying, grinding and powder selecting integrated ball milling system for high-moisture materials |
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| CN113953064A (en) * | 2021-10-18 | 2022-01-21 | 天津水泥工业设计研究院有限公司 | Self-sorting ball mill and application thereof |
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