CN110090719A - A kind of grain diameter grading device and system - Google Patents
A kind of grain diameter grading device and system Download PDFInfo
- Publication number
- CN110090719A CN110090719A CN201910500229.4A CN201910500229A CN110090719A CN 110090719 A CN110090719 A CN 110090719A CN 201910500229 A CN201910500229 A CN 201910500229A CN 110090719 A CN110090719 A CN 110090719A
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- China
- Prior art keywords
- grain diameter
- cage rotor
- sand
- cone bucket
- deduster
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- 239000000463 material Substances 0.000 claims abstract description 79
- 239000004576 sand Substances 0.000 claims abstract description 54
- 230000007480 spreading Effects 0.000 claims abstract description 32
- 238000003892 spreading Methods 0.000 claims abstract description 32
- 238000006243 chemical reaction Methods 0.000 claims abstract description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 23
- 239000000843 powder Substances 0.000 claims description 22
- 238000012216 screening Methods 0.000 claims description 18
- 238000007789 sealing Methods 0.000 claims description 10
- 210000000988 bone and bone Anatomy 0.000 claims description 9
- 230000008878 coupling Effects 0.000 claims description 8
- 238000010168 coupling process Methods 0.000 claims description 8
- 238000005859 coupling reaction Methods 0.000 claims description 8
- 210000003205 muscle Anatomy 0.000 claims description 7
- 239000002245 particle Substances 0.000 claims description 7
- 238000007599 discharging Methods 0.000 claims description 4
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 239000013014 purified material Substances 0.000 claims description 3
- 210000002435 tendon Anatomy 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 11
- 238000000034 method Methods 0.000 abstract description 10
- 238000012856 packing Methods 0.000 abstract description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 52
- 239000004567 concrete Substances 0.000 description 10
- 238000005516 engineering process Methods 0.000 description 9
- 238000000926 separation method Methods 0.000 description 9
- 230000000694 effects Effects 0.000 description 8
- 230000008569 process Effects 0.000 description 5
- 230000006835 compression Effects 0.000 description 4
- 238000007906 compression Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000005484 gravity Effects 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 239000004574 high-performance concrete Substances 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000005119 centrifugation Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000011044 inertial separation Methods 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000009830 intercalation Methods 0.000 description 1
- 230000002687 intercalation Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 230000001376 precipitating effect Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000004537 pulping Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000010334 sieve classification Methods 0.000 description 1
- 238000007873 sieving Methods 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
Classifications
-
- 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
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
- B02C23/08—Separating or sorting of material, associated with crushing or disintegrating
- B02C23/10—Separating or sorting of material, associated with crushing or disintegrating with separator arranged in discharge path of crushing or disintegrating zone
- B02C23/12—Separating or sorting of material, associated with crushing or disintegrating with separator arranged in discharge path of crushing or disintegrating zone with return of oversize material to crushing or disintegrating zone
-
- 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
- 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 invention discloses a kind of grain diameter grading device and systems, including upper housing, driving device, spreading disk, cage rotor and lower case, feed inlet, air inlet and driving device are provided on upper housing, spreading disk and cage rotor are set in turn on the vertical shaft of driving device, feed inlet is located above spreading disk, and cage rotor is connected to air inlet.Upper housing is connected to lower case, the lower end of vertical shaft is set in the supporting beam at the top of lower case by bearing, discharge port, diversion division are provided in lower case and cone bucket of gathering materials, chamber between cage rotor and upper housing is connected to discharge port, diversion division and cone bucket of gathering materials are connected to the inner cavity of cage rotor, gas dirt outlet on diversion division is connected with deduster, and the frequency conversion fan that deduster can regulate and control intake with one is connect.The present invention solves the problems, such as that aggregate packing density is big, size grading is difficult close to the high-performance Machine-made Sand production of fowler maximal density curve, meets the technique requirement of fine aggregate classification grouping.
Description
Technical field
The present invention relates to the technical fields of building material product process equipment, more particularly to a kind of grain diameter grading device and are
System.
Background technique
Experiment and construction prove in concrete gradation: the sand of 5.0-2.5mm partial size influences compression strength and viscosity, 2.5-
The sand of 1.25mm partial size influences crack resistance；Work of the partial size aggregate in the section 0.075-1.25mm in concrete batching to concrete
It is particularly important to make performance, compression strength, durability.1.25-0.63mm the sand of partial size starts to control pulping water eduction；0.63-
0.075mm partial size has ball effect, good fluidity, 0.63mm or less content 40%, 0.075- in concrete gradation
The concrete that 0.315mm content 20% or so is allotted has the characteristics that good pump-conveying property, large bulk density, cement consumption are few.It is mixed
The fine aggregate of the section 0.075-5.0mm partial size is very heavy to the working performance, compression strength, durability of concrete in solidifying soil ingredient
It wants.
In sandstone production process, produce packing density is big, size grading close to Fuller curve fine aggregate, by this
The aggregate in section is divided into the aggregate of 0.075-0.63mm, 0.63-1.25mm, 1.25-2.5mm partial size, then again bent by Fuller
Line prepares the aggregate for meeting high performance concrete.But existing screening machine (vibrating screen) and powder concentrator, it is difficult to accomplish and sub-elects
The material of 0-0.075mm, 0.075-0.63mm, 0.63-1.25mm different-grain diameter.Screening machine, vibrating screen on existing market and
Powder concentrator can not accomplish to be classified out the special fine aggregate of these components of 0.075-0.315mm, 0.315-2.5mm partial size, thin in production
Aggregate；Screening machine, used by oscillating screen can only sort 2.5mm or more partial size material in actual production, and separate special fine aggregate, thin bone
Expect that efficiency is too low, energy consumption is too high, equipment volume is too big；Existing powder concentrator is economical into sorting to material within the scope of 0~0.075mm
Type, and sort that 0.075-2.5mm partial size object efficiency is too low, energy consumption is too high, the quick abrasion service life is short.
Summary of the invention
The object of the present invention is to provide a kind of grain diameter grading device and system, to solve above-mentioned of the existing technology ask
Topic, enables the material of 0.075-0.63mm and 0.63-1.25mm particle size range to sort out, meets fine aggregate classification and sorting
Technique requirement, improve concrete performance.
To achieve the above object, the present invention provides following schemes:
The present invention provides a kind of grain diameter grading device, including upper housing, driving device, spreading disk, cage rotor and under
Shell is provided with feed inlet, air inlet and the driving device on the upper housing, and the vertical shaft of the driving device is through described
Upper housing, the spreading disk and the cage rotor are set in turn on the vertical shaft, and the feed inlet is located at the spreading disk
Top, the cage rotor are connected to the air inlet；
The upper housing is connected to the lower case, and the lower end of the vertical shaft is set in supporting beam by bearing, described
Supporting beam is set to the top of the lower case, discharge port, diversion division is provided in the lower case and cone bucket of gathering materials, the cage
Chamber between shape rotor and the upper housing is connected to the discharge port, the diversion division and it is described gather materials cone bucket with it is described
The inner cavity of cage rotor is connected to, and the outlet of gas dirt is provided on the diversion division, the gas dirt outlet is connect with a deduster, described
Deduster is connect with a frequency conversion fan, and the frequency conversion fan can regulate and control intake.
Preferably, the driving device includes variable-frequency motor, shaft coupling and speed changer, and the variable-frequency motor connects the change
Fast device, the main shaft of the variable-frequency motor are connect with the shaft coupling, and the shaft coupling connects the vertical shaft, the variable-frequency motor energy
Enough modulate the revolving speed of the cage rotor.
Preferably, the discharge port is two and the material particular diameter range of outflow is 0.63-1.25mm, the cone bucket of gathering materials
The material particular diameter range of outflow is 0.075-0.63mm.
Preferably, the air inlet is to be provided with angular louvre blade in several and the air inlet.
Preferably, several spreading blades are evenly equipped on the spreading disk, the spreading blade is backward tilt arc, described
Counterpunch board is provided in upper enclosure inner wall at spreading disk.
Preferably, the diversion division includes water conservancy diversion cone bucket and diversion pipe, and the water conservancy diversion cone bucket is interior with the cage rotor
Chamber connection, the diversion pipe are connected to the water conservancy diversion cone bucket and the cone bucket of gathering materials.
Preferably, the upper end of the cage rotor is fixedly connected with the lower end surface of the spreading disk, the cage rotor
Lower end is provided with plum blossom frame and advection ring, and the inside muscles and bones of the plum blossom frame is connected with vertical shaft sleeve, and the vertical shaft sleeve is solid by key
Due on the vertical shaft, the advection ring is located at the periphery of the plum blossom frame, is provided with one on the lower anchor ring of the advection ring
Circle sealing leaf, the external muscles and bones of the plum blossom frame connect with the inner peripheral surface of the flow-guiding mouth, and the flow-guiding mouth covers with a gap
It is suitable for reading interior to be connected to the water conservancy diversion cone bucket.
Preferably, the cage rotor be up big and down small circular table cage rotor, and it is described sealing leaf quantity and institute
The rotor bar quantity stated on cage rotor is equal.
Preferably, discharging air valve is provided in the cone bucket of gathering materials.
The invention further relates to a kind of grain size grading system based on above-mentioned grain diameter grading device, including sand making machine, conveyer,
Elevator, screening machine, the grain diameter grading device and deduster, material are transported to the sand making machine, the system by conveyer
Material is transported to screening machine by the elevator by sand machine, and the screening machine brush is selected under material of the partial size greater than 5mm and warp
Expects pipe is returned to sand making machine sand processed again；Partial size enters coarse grain diameter sand into strain in the material coarse grain diameter sand outlet of 1.25-5mm
System；Partial size is less than 1.25mm material below and exports through mixed sand into the grain diameter grading device, the grain size grading dress
The gas dirt outlet set is connect with the deduster, is sent through the purified material recycle of the deduster to powder system, through described
Deduster purified gas is discharged by the exhaust fan of the deduster.
The present invention achieves following technical effect compared with the existing technology:
Grain diameter grading device of the invention cuts particle size sorting technology using level rotary flow rotor, in entire assorting room,
Motion profile greater than 0.075mm partial size material is moved from top to bottom with wind-force, big to partial size, weight weight material sorting
Running route it is most reasonable, have size controlling precision high, gas, material are uniformly mixed, need to be small with air quantity, power consumption is small；It is sieving
Extension set discharge end has additional suction inlet, reduces system dust emission, realizes the environmentally protective of sand production technology processed；It solves
The difficult problem of the production for the high-performance Machine-made Sand that aggregate packing density is big, size grading is close to fowler maximal density curve, thus
Meet fine aggregate classification grouping technique requirement, meet the use of high performance concrete, improve concrete workability and
Durability.
Detailed description of the invention
It in order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, below will be to institute in embodiment
Attached drawing to be used is needed to be briefly described, it should be apparent that, the accompanying drawings in the following description is only some implementations of the invention
Example, for those of ordinary skill in the art, without creative efforts, can also obtain according to these attached drawings
Obtain other attached drawings.
Fig. 1 is the structural schematic diagram one of grain diameter grading device of the present invention；
Fig. 2 is the structural schematic diagram two of grain diameter grading device of the present invention；
Fig. 3 is the structural schematic diagram of grain size grading system of the present invention；
Fig. 4 is the structural schematic diagram of spreading blade in grain diameter grading device of the present invention；
Fig. 5 is annular separation chamber schematic cross-section in grain diameter grading device of the present invention；
Wherein: 1- grain diameter grading device, 2- counterpunch board, 3- upper housing, 4- lower case, 5- cage rotor, 6- vertical shaft sleeve, 7-
Driving device, 8- spreading disk, 9- spreading blade, 10- feed inlet, 11- advection ring, 12- plum blossom frame, 13- flow-guiding mouth, 14- support
Beam, 15- sealing leaf, 16- air inlet, the angular louvre blade of 17-, 18- discharge port, the outlet of 19- gas dirt, 20- water conservancy diversion cone bucket, 21- are led
Flow tube, 22- gather materials cone bucket, 23- deduster, 24- conveyer, 25- sand making machine, 26- elevator, 27- screening machine, 28- discharging lock
Air-valve.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art under the premise of not making the creative labor it is obtained it is all its
His embodiment, shall fall within the protection scope of the present invention.
The object of the present invention is to provide a kind of grain diameter grading device and systems, of the existing technology to solve the problems, such as, make
The material of 0.075-0.63mm and 0.63-1.25mm particle size range can sort out, and meet the work of fine aggregate classification and sorting
Skill requirement, improves concrete performance.
In order to make the foregoing objectives, features and advantages of the present invention clearer and more comprehensible, with reference to the accompanying drawing and specific real
Applying mode, the present invention is described in further detail.
It is as shown in Figures 1 to 5: present embodiments provide a kind of grain diameter grading device, including upper housing 3, driving device 7,
Spreading disk 8, cage rotor 5 and lower case are provided with feed inlet 10, air inlet 16 and driving device 7, driving dress on upper housing 3
The vertical shaft for setting 7 runs through upper housing 3, and driving device 7 includes variable-frequency motor, shaft coupling and speed changer, and variable-frequency motor connects speed changer,
The main shaft of variable-frequency motor is connect with shaft coupling, and shaft coupling connects vertical shaft, and variable-frequency motor can modulate the revolving speed of cage rotor 5.Become
Frequency motor can modulate the revolving speed of cage rotor 5, enable the partial size of material in the section 0.075-0.63mm or 0.63-
Classification adjustment is carried out in the section 1.25mm.
Spreading disk 8 and cage rotor 5 are set in turn on vertical shaft, and feed inlet 10 is located at 8 top of spreading disk, cage rotor 5
It is connected to air inlet 16, air inlet 16 is to be provided with angular louvre blade 17 in several and air inlet 16.The air inlet of the present embodiment
Mouth 16 uses angular louvre blade 17 for radial air inlet, without spin centrifugal force, is adapted to thick, fine grain material sorting.Air inlet 16
Guiding role of the wind come in by angular louvre blade 17, wind direction directly to the center of cage rotor 5, reduce the rotation of cage rotor 5
The rotation wind speed and wind-force generated when turning, reduces centrifugal force suffered by sorted material, to be conducive to coarse grain diameter material
Sorting；Being folded at angular 17 excircle of louvre blade simultaneously can go out to avoid the materials from spattering after being collided by cage rotor 5,
Ensure the efficiency of separation of material.
Several spreading blades 9 are evenly equipped on spreading disk 8, spreading blade 9 is backward tilt arc, the upper casing at spreading disk 8
Counterpunch board 2 is provided on 3 inner wall of body.When spreading disk 8 rotates, the material rotation of mixed sand is acted on by centrifugal force, spreads material point
Uniformly, material is shed the annular separation chamber that collision counterpunch board 2 is lower to fall behind, and constitutes into angular louvre blade 17 and cage rotor 5
It is interior, uniform gas material mixing is formed, to improve the efficiency of separation.
Upper housing 3 is connected to lower case 4, and the lower end of vertical shaft is set in supporting beam 14 by bearing, and supporting beam 14 is arranged
In the top of lower case 4, discharge port 18, diversion division are provided in lower case 4 and cone bucket 22 of gathering materials, cage rotor 5 and upper housing 3
Between chamber be connected to discharge port 18, discharge port 18 be two and outflow material particular diameter range be 0.63-1.25mm, gather materials
The material particular diameter range that cone bucket 22 flows out is 0.075-0.63mm.
Wherein, the upper end of cage rotor 5 is fixedly connected with the lower end surface of spreading disk 8, and the lower end of cage rotor 5 is provided with plum
The inside muscles and bones of flower stand 12 and advection ring 11, plum blossom frame 12 is connected with vertical shaft sleeve 6, and vertical shaft sleeve 6 is fixed on vertical shaft by key, puts down
Stream ring 11 is located at the periphery of plum blossom frame 12, is provided with circle sealing leaf 15 on the lower anchor ring of advection ring 11, plum blossom frame 12 outside
Portion's muscles and bones connect with the inner peripheral surface of flow-guiding mouth 13, and it is suitable for reading interior that flow-guiding mouth 13 is socketed on water conservancy diversion cone bucket 20 with a gap.Wherein, plum
The inner end muscles and bones of flower stand 12 is welded on 6 excircle of vertical shaft sleeve, and the outer end muscles and bones of plum blossom frame 12 is welded on the inner circle of flow-guiding mouth 13
Zhou Shang, the inner periphery of the excircle welding advection ring 11 of flow-guiding mouth 13 is in upper, one circle sealing of welding on the lower anchor ring of advection ring 11
Leaf 15, flow-guiding mouth 13, which contains, is inserted in the suitable for reading interior of water conservancy diversion cone bucket 20, and the intercalation section between flow-guiding mouth 13 and water conservancy diversion cone bucket 20 should have foot
The gap that enough flow-guiding mouths 13 rotate.The negative pressure wind of centrifugation wind-force and exhaust fan that sealing leaf 15 generates when rotating with cage rotor 5
Power generates dynamic equilibrium, solves the problems, such as leakage after the place's stock grading suitable for reading of water conservancy diversion cone bucket 20, it is possible to reduce 0-0.315mm's
The mutual leakage of fine grain sand and the middle partial size aggregate in the section 0.315-1.25mm, further increases sharpness of separation；Advection ring 11,
The support of flow-guiding mouth 13 and connection cage rotor 5, plum blossom frame 12 and vertical shaft sleeve 6, while guiding, water conservancy diversion work are played to material, air-flow
With.Cage rotor 5 is up big and down small circular table cage rotor 5, and the quantity for sealing leaf 15 and the rotor bar on cage rotor 5
Quantity is equal, is not easy to collide cage rotor 5 in big partial size material dropping process, is conducive to cage rotor 5 service life,
Also achieve the fine grain sand of 0.075mm powder below and the section 0.075-0.315mm, the middle partial size in the section 0.315-1.25mm
The classification of sand improves the recovering effect of 0.075mm or less partial size powder.
The diffusion type annular separation chamber that the improved angular louvre blade 17 of the present embodiment and circular table cage rotor 5 are constituted, leads
For stem bar 13 containing connecing in water conservancy diversion cone bucket 20 is suitable for reading, the diversion pipe 21 of the lower mouth of water conservancy diversion cone bucket 20 is inserted into 22 (inertial separation of cone bucket of gathering materials
Storehouse) in, the isostructural setting of advection ring 11, flow-guiding mouth 13, sealing leaf 15 makes in entire assorting room, 0.075mm or more partial size
The motion profile of material is moved diagonally downward from top to bottom with wind-force, runs road to the sorting of big partial size, quality heavy material
Line is most reasonable, has the advantages that size controlling precision is high, and gas, material are uniformly mixed, and air quantity need to be used small, and power consumption is small.
Diversion division and cone bucket 22 of gathering materials are connected to the inner cavity of cage rotor 5, and gas dirt outlet 19, gas are provided on diversion division
Dirt outlet 19 is connect with a deduster 23, and deduster 23 is connect with a frequency conversion fan, and frequency conversion fan can regulate and control intake.Its
In, diversion division includes water conservancy diversion cone bucket 20 and diversion pipe 21, and water conservancy diversion cone bucket 20 is connected to the inner cavity of cage rotor 5, and diversion pipe 21 connects
Admittance flow cone bucket 20 and cone bucket 22 of gathering materials, are provided with discharging air valve 28 in cone bucket of gathering materials 22.
The present embodiment further relates to a kind of grain size grading system based on above-mentioned grain diameter grading device 1, including sand making machine 25, defeated
Machine 24, elevator 26, screening machine 27, grain diameter grading device 1 and deduster 23 are sent, material is transported to sand making machine by conveyer 24
25, material is transported to screening machine 27 by elevator 26 by sand making machine 25, and screening machine 27, which is brushed, selects material of the partial size greater than 5mm simultaneously
The sand processed again of sand making machine 25 is returned to through feeder pipe；Partial size 1.25-5mm material coarse grain diameter sand outlet enter coarse grain diameter sand at
Strain system；Partial size is less than 1.25mm material below and enters in grain diameter grading device 1 through mixed sand outlet, grain diameter grading device 1
The outlet of gas dirt 19 connect with deduster 23, send through the purified material recycle of deduster 23 to powder system, through deduster 23
Purified gas is discharged by the exhaust fan of deduster 23.The motion profile of 0.075mm or more partial size material be with wind-force by
On move down, the running route of the material sorting of, weight big to partial size weight is most reasonable, the sorting point suitable for coarse grain diameter material
Grade.The setting of deduster 23 improves 0.075mm powder recovery efficiency below, reduces system dust emission, realizes system
Sand production technology it is environmentally protective.
The group technology that sand processed is carried out using the grain size grading system of the present embodiment can be realized 0.075mm or less partial size
Powder, the fine grain sand in the section 0.075-0.315mm, the middle partial size aggregate in the section 0.315-1.25mm and the area 1.25-5.0mm
Between coarse grain diameter sand multiple component aggregates sizing screening, meet multiple groups part gradation demand of Concrete Mixing Station,
Isolation defect of the aggregate in production, transport, storage is reduced, is improved reliably to produce the production technology of high performance machine sand
Equipment guarantee.
Three discharge ports sub-elect the material of three partial size grades in the present embodiment, and gas dirt outlet 19 is powder outlet, object
Expect partial size in 0-0.075mm or less.The outlet of cone bucket of gathering materials 22 is fine grain sand outlet (or special fine sand outlet), material particular diameter area
Between be 0.075-0.315mm or 0.315-0.63mm, the adjustment of two section partial sizes can by adjusting the revolving speed of variable-frequency motor, into
And realize and the cutting revolving speed of cage rotor 5 is controlled, to realize the purpose to material particular diameter classification section adjustment；Also it is adjusted and becomes
The revolving speed of the exhaust fan of frequency, the exhausting amount for changing exhaust fan realize the adjustment in material particular diameter classification section.It is (used in cone bucket 22 of gathering materials
Property separation bin) side symmetrically arranged two discharge ports 18 be middle partial size sand outlet, particle size interval be 0.315-1.25mm or
The exhaust fan revolving speed of 0.63-1.25mm, same adjustable variable-frequency motor or frequency conversion is classified section to material particular diameter to realize
Adjustment.If desired user reduces section aggregate gradation partial size, the revolving speed of cage rotor 5 is just increased, to reduce this according to requiring
Section aggregate size size, if it is desired to which on the contrary, operation is also on the contrary.When adjusting the revolving speed of exhaust fan, if increasing the revolving speed of exhaust fan,
Air quantity is improved, section aggregate size will be thicker, if conversely, attenuating if partial size.The grain diameter grading device and system of the present embodiment
Specific work process it is as follows:
Material tube:
In process of production, the block-like material of stone is transported in sand making machine 25 by the conveyer 24 of belt and is made into uniting
Sand, system sand enter elevator 26 through feeder pipe, and boosted machine 26, which enters in screening machine 27 after being promoted through feeder pipe, to carry out tentatively
Sieve classification: greater than 5.0mm or more partial size material returns to sand processed again in sand making machine 25 through feeder pipe from outlet G；1.25-
The coarse grain diameter sand of 5.0mm enters coarse grain diameter sand finished product system through feeder pipe from outlet C；The mixed sand of 1.25mm or less partial size is from out
Mouth X enters in the grain diameter grading device 1 in the present embodiment through feeder pipe.Mixed sand is revolved after entering upper housing 3 by feed inlet 10
The effect of centrifugal force, is shed and is fallen after colliding counterpunch board 2 on the spreading disk 8 turned, is turned into angular louvre blade 17 and cage type
In the annular separation chamber that son 5 is constituted, the middle partial size aggregate in the section 0.315-1.25mm falls directly into discharge port under the effect of gravity
18, through feeder pipe enter in partial size sand finished product system；Negative pressure wind of the fine grain sand of 0-0.315mm by the exhaust fan of deduster 23
The collective effect of the circumgyration incision power of power, self gravity and cage rotor 5, qualified fine grain sand and powder in particle size interval
The rotor bar for passing through cage rotor 5 diagonally downward, enters in water conservancy diversion cone bucket 20, pressure of the air-flow through water conservancy diversion cone bucket 20 through flow-guiding mouth 13
Contracting accelerates, and is quickly injected into and gathers materials in cone bucket 22 from diversion pipe, and the fine grain sand of 0.075-0.315mm falls through precipitating from collection
The outlet of material cone bucket 22 enters fine grain sand finished product system through feeder pipe；Negative-pressure air power of the 0.075mm powder below by exhaust fan
It turns back under effect with air-flow and is separated upwards through gas dirt outlet 19 into deduster 23, powder is through feeder pipe or air transportation trough
It is transported into powder recovery system.
Wind path:
Under the negative-pressure air power effect of the exhaust fan of deduster 23, air-flow enters angular louvre blade from air inlet 16 through air hose
In the 17 annular separation chamber constituted with cage rotor 5, the gas dirt stream of the fine sand and powder that carry 0-0.315mm passes through cage rotor 5
And flow-guiding mouth 13, gas dirt flow through 20 compression volume of water conservancy diversion cone bucket increase flow velocity and spray into cone bucket 22 of gathering materials from diversion pipe 21.In inertia
It is separated under the action of power, gravity, exhaust fan negative-pressure air power, the fine grain aggregate in the section 0.075-0.315mm is by discharge port 18
Enter in finished product system through feeder pipe；The powder of 0.075mm or less partial size is turned back to enter from gas dirt outlet 19 upwards with air-flow and be removed
Dirt device 23 is delivered in powder recovery system after being purified by deduster 23, and purified gas is arranged by the exhaust fan of deduster 23
Out.
Under the action of exhaust fan negative-pressure air power, the gas dirt in screening machine 27 passes through the sieve that suction inlet is arranged from feeder pipe
Divide adjusting valve to enter 23 purified gas of deduster to be discharged by the exhaust fan of deduster 23；Gas dirt in sand making machine 25 is through shaking out
The sand adjusting valve processed that the pumping dirt mouth set is arranged from feeder pipe is added on bucket enters 23 purified gas of deduster by deduster
23 exhaust fan discharge.In process of production, the exhausting amount of screening machine 27 and the exhausting amount of sand making machine 25 be by screening adjusting valve,
The aperture of sand adjusting valve processed controls.The powder collecting amount of 0.075mm or less partial size regulates and controls, and is the motor for adjusting exhaust fan
Revolving speed changes the air quantity of exhaust fan, and the adjustment of powder particle size is realized using inertia force and negative-pressure air power.If desired increase and collect
The motor speed of 0.075mm powder collecting amount below, Ying Zengjia exhaust fan improves air quantity, can realize and increase powder amount, if
It needs on the contrary, then operating also on the contrary.
Apply that a specific example illustrates the principle and implementation of the invention in this specification, above embodiments
Explanation be merely used to help understand method and its core concept of the invention；At the same time, for those skilled in the art,
According to the thought of the present invention, there will be changes in the specific implementation manner and application range.In conclusion in this specification
Appearance should not be construed as limiting the invention.
Claims (10)
1. a kind of grain diameter grading device, it is characterised in that: including upper housing, driving device, spreading disk, cage rotor and lower casing
Body, is provided with feed inlet, air inlet and the driving device on the upper housing, and the vertical shaft of the driving device is on described
Shell, the spreading disk and the cage rotor are set in turn on the vertical shaft, and the feed inlet is located on the spreading disk
Side, the cage rotor are connected to the air inlet；
The upper housing is connected to the lower case, and the lower end of the vertical shaft is set in supporting beam by bearing, the support
Beam is set to the top of the lower case, discharge port, diversion division is provided in the lower case and cone bucket of gathering materials, and the cage type turns
Chamber between the sub and described upper housing is connected to the discharge port, the diversion division and it is described gather materials cone bucket with the cage type
The inner cavity of rotor is connected to, and the outlet of gas dirt is provided on the diversion division, and the gas dirt outlet is connect with a deduster, the dedusting
Device is connect with a frequency conversion fan, and the frequency conversion fan can regulate and control intake.
2. grain diameter grading device according to claim 1, it is characterised in that: the driving device includes variable-frequency motor, connection
Axis device and speed changer, the variable-frequency motor connect the speed changer, and the main shaft of the variable-frequency motor is connect with the shaft coupling, institute
It states shaft coupling and connects the vertical shaft, the variable-frequency motor can modulate the revolving speed of the cage rotor.
3. grain diameter grading device according to claim 1, it is characterised in that: the discharge port is the material of two and outflow
Particle size range is 0.63-1.25mm, and the material particular diameter range for gathering materials cone bucket outflow is 0.075-0.63mm.
4. grain diameter grading device according to claim 1, it is characterised in that: the air inlet is several and the air inlet
Angular louvre blade is provided in mouthful.
5. grain diameter grading device according to claim 1, it is characterised in that: be evenly equipped with several spreadings on the spreading disk
Blade, the spreading blade are backward tilt arc, are provided with counterpunch board in the upper enclosure inner wall at the spreading disk.
6. grain diameter grading device according to claim 1, it is characterised in that: the diversion division includes water conservancy diversion cone bucket and water conservancy diversion
Pipe, the water conservancy diversion cone bucket is connected to the inner cavity of the cage rotor, the diversion pipe connection water conservancy diversion cone bucket and described gathers materials
Cone bucket.
7. grain diameter grading device according to claim 6, it is characterised in that: the upper end of the cage rotor and the spreading
The lower end surface of disk is fixedly connected, and the lower end of the cage rotor is provided with plum blossom frame and advection ring, the interior tendon of the plum blossom frame
Bone is connected with vertical shaft sleeve, and the vertical shaft sleeve is fixed on the vertical shaft by key, and the advection ring is located at the outer of the plum blossom frame
It encloses, circle sealing leaf, external muscles and bones and the flow-guiding mouth of the plum blossom frame is provided on the lower anchor ring of the advection ring
Inner peripheral surface connection, it is suitable for reading interior that the flow-guiding mouth is socketed on the water conservancy diversion cone bucket with a gap.
8. grain diameter grading device according to claim 7, it is characterised in that: the cage rotor is up big and down small rotary table
Formula cage rotor, and the quantity of the sealing leaf is equal with the rotor bar quantity on the cage rotor.
9. grain diameter grading device according to claim 1, it is characterised in that: be provided with discharging lock wind in the cone bucket of gathering materials
Valve.
10. the grain size grading system based on any one of the claim 1-9 grain diameter grading device, it is characterised in that: including system
Sand machine, conveyer, elevator, screening machine, the grain diameter grading device and deduster, material are transported to the system by conveyer
Material is transported to screening machine by the elevator by sand machine, the sand making machine, and the screening machine brush selects partial size greater than 5mm's
Material is simultaneously returned to sand making machine sand processed again through feeder pipe；Partial size enters coarse grain diameter in the material coarse grain diameter sand outlet of 1.25-5mm
Sand finished product system；Partial size is less than 1.25mm material below and exports through mixed sand into the grain diameter grading device, the grain
The gas dirt outlet of radial sector device is connect with the deduster, is sent through the purified material recycle of the deduster to powder system
System is discharged through the deduster purified gas by the exhaust fan of the deduster.
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| CN201910500229.4A CN110090719B (en) | 2019-06-11 | 2019-06-11 | Particle size grading device and system |
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| CN110090719B CN110090719B (en) | 2024-06-04 |
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| CN113799265A (en) * | 2021-09-26 | 2021-12-17 | 山东山铝环境新材料有限公司 | Particle grading control equipment for high-performance cement production |
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| CN110090719B (en) | 2024-06-04 |
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