CN108672300A - A kind of silicon carbide micro-powder secondary filter - Google Patents
A kind of silicon carbide micro-powder secondary filter Download PDFInfo
- Publication number
- CN108672300A CN108672300A CN201810642687.7A CN201810642687A CN108672300A CN 108672300 A CN108672300 A CN 108672300A CN 201810642687 A CN201810642687 A CN 201810642687A CN 108672300 A CN108672300 A CN 108672300A
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- CN
- China
- Prior art keywords
- outer case
- sieves
- silicon carbide
- discharge bucket
- electromagnet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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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
-
- 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
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/28—Moving screens not otherwise provided for, e.g. swinging, reciprocating, rocking, tilting or wobbling screens
- B07B1/30—Moving screens not otherwise provided for, e.g. swinging, reciprocating, rocking, tilting or wobbling screens jigging or moving to-and-fro within their own plane in or approximately in or transverse to the direction of conveyance
-
- 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
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/28—Moving screens not otherwise provided for, e.g. swinging, reciprocating, rocking, tilting or wobbling screens
- B07B1/34—Moving screens not otherwise provided for, e.g. swinging, reciprocating, rocking, tilting or wobbling screens jigging or moving to-and-fro perpendicularly or approximately perpendiculary to the plane of the screen
- B07B1/343—Moving screens not otherwise provided for, e.g. swinging, reciprocating, rocking, tilting or wobbling screens jigging or moving to-and-fro perpendicularly or approximately perpendiculary to the plane of the screen with mechanical drive elements other than electromagnets
-
- 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
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/42—Drive mechanisms, regulating or controlling devices, or balancing devices, specially adapted for screens
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Combined Means For Separation Of Solids (AREA)
Abstract
The invention discloses a kind of silicon carbide micro-powder secondary filter, including rack, the frame upper end is equipped with outer case, and the outer case installed in front has controller, the outer case upper end to be equipped with feed hopper；The first filter device and the second filter device are sequentially installed with inside the outer case from top to bottom, the outer case both sides are respectively arranged with the first discharge bucket and the second discharge bucket, first discharge bucket is corresponding with first filter device, and second discharge bucket is corresponding with second filter device.Advantageous effect is：Secondary filter can be carried out to silicon carbide, filter efficiency is high, only needs an equipment, helps to reduce equipment cost by the first filter device and the second filter device；Power is provided by the magnetic attraction of the first electromagnet and the second electromagnet, realizes and shakes filtering, power is provided by driving motor and cam, realizes lifting filtering, when filtering not will produce noise, while motion amplitude is big, helps to improve filter effect.
Description
Technical field
The present invention relates to silicon carbide micro powder production device technical fields, and in particular to a kind of silicon carbide micro-powder secondary filter dress
It sets.
Background technology
It is that raw material passes through one made of resistance furnace pyrolytic semlting that silicon carbide, which is with quartz sand, petroleum coke (or coal tar), sawdust,
Kind refractory material.Silicon carbide mainly has four big application fields, i.e.,：Function ceramics, high grade refractory, abrasive material and metallurgical raw material.
Varigrained silicon carbide be applied to different fields, in order to select the silicon carbide with power granularity, need to silicon carbide micro-powder into
Row filtering.
Applicants have discovered that at least there is following technical problem in the prior art：Current silicon carbide filter device is using single
Secondary filtering needs multigroup device to be used cooperatively, and filter efficiency is low, and equipment cost is high；Mostly used when being filtered vibration motor into
Row vibrations filtering, filter effect is undesirable, while can cause noise pollution.
Invention content
The purpose of the present invention is that solve the above-mentioned problems and provides a kind of silicon carbide micro-powder secondary filter, with
It solves silicon carbide filter device current in the prior art and uses single filtration, need multigroup device to be used cooperatively, filter efficiency
Low, equipment cost is high；Vibration motor is mostly used when being filtered and carries out vibrations filtering, and filter effect is undesirable, while can cause
The technical problems such as noise pollution.Preferred technical solution can realize the two of silicon carbide in many technical solutions provided by the invention
Secondary filtering, filter efficiency is good high, helps to reduce equipment cost；Filtering power is provided using electromagnet and motor simultaneously, is ensured
Noise is small while filter effect, can prevent the technique effects such as noise pollution, elaboration as detailed below.
To achieve the above object, the present invention provides following technical schemes：
A kind of silicon carbide micro-powder secondary filter provided by the invention, including rack, the frame upper end are equipped with outer
Babinet, the outer case installed in front have controller, the outer case upper end to be equipped with feed hopper, and the feed hopper is deeply described
Inside outer case；The first filter device and the second filter device are sequentially installed with inside the outer case from top to bottom, it is described outer
Babinet both sides are respectively arranged with the first discharge bucket and the second discharge bucket, and first discharge bucket is opposite with first filter device
It answers, second discharge bucket is corresponding with second filter device；Bottom is equipped with bottom discharge pipe, institute in the outer case
It states bottom discharge pipe and passes through the rack；
First filter device includes support shaft, pressure sensor, and the support shaft is mounted on inside the outer case,
The support shaft shares two, and symmetrical, and secondary spring is provided on the outside of the support shaft；It is slided between the support shaft
Shaking sieves is installed, the shaking sieves longitudinal direction both sides are mounted on magnetic part；Bottom is embedding in the shaking sieves
Entering has the pressure sensor, and the pressure sensor is electrically connected with the controller；On the inner wall of outer case longitudinal direction both sides
Be separately installed with the first electromagnet and the second electromagnet, first electromagnet and second electromagnet with the controller
Electrical connection；
Second filter device includes driving motor, lifting sieves, and outer case longitudinal direction both side surface is provided with
Sliding groove is equipped with support column inside the sliding groove, is provided with buffer spring on the outside of the support column, sliding on the support column
It is dynamic that elevating lever is installed, the lifting sieves is installed between the elevating lever；The outer case front and back sides are respectively mounted
There are the driving motor, the driving motor to be electrically connected with the controller, the driving motor end is equipped with driving cam,
The driving cam is located at below the elevating lever.
Preferably, being provided with display screen and function key on the controller.
Preferably, the shaking sieves is installed using inclination, and the shaking sieves end is equipped with first and leads
Hopper.
Preferably, first discharge bucket tilts installation, and first discharge bucket end extends to described first and leads
Below hopper.
Preferably, the both ends of the secondary spring respectively with the outer case inner wall and the shaking sieves side
It is connected.
Preferably, the lifting sieves is turned using peace is tilted, and described lifting sieves one end is equipped with second and leads
Hopper.
Preferably, second discharge bucket tilts installation, and second discharge bucket end extends to described second and leads
Below hopper.
Preferably, the both ends of the buffer spring respectively with the sliding trench bottom and the lifting filter screen bottom
It is connected.
Preferably, bottom discharge pipe upper end is equipped with aggregate bin, the aggregate bin is located at lifting filtering
Sieve lower section.
Using a kind of above-mentioned silicon carbide micro-powder secondary filter, when use device, by the feed hopper into device
Raw material is injected in portion, and controlling first electromagnet by the controller obtains electric, the described second electromagnet dead electricity, described first
Under the magnetic force effect of electromagnet, the shaking sieves is moved to first electromagnet, controller control described the
One electromagnet dead electricity, second electromagnet obtain it is electric, under the magnetic force effect of the secondary spring and second electromagnet,
The shaking sieves is moved to second electromagnet, and first electromagnet and described is controlled successively by the controller
Second electromagnet obtains electric, power failure state, realizes the reciprocating motion for shaking sieves, shakes filtering to realize, progress
Primary filtering, particle is thinner to be fallen inside the lifting sieves, particle slightly pass through first material guiding hopper and described the
One discharge bucket is discharged；The controller controls the driving motor and drives the driving cam rotation, makes between the driving cam
Every driving the elevating lever to be lifted on the lifting column, coordinate the buffer spring that can realize the past of the lifting sieves
Multiple lifting, to carry out secondary filter, particle is thick to be discharged by second material guiding hopper and second discharge bucket, and particle is thin
Pass through the aggregate bin and the bottom discharge pipe discharge；Device can realize double filtration, and good filtration effect is efficient,
Help to reduce equipment cost, while first electromagnet and second electromagnet being used to provide power for primary filtering,
Power is provided for secondary filter by driving motor, operating noise is small, can prevent from causing noise pollution, the shaking sieves
It is big with the motion amplitude of the lifting sieves, help to improve filter efficiency；Institute can be detected by the pressure sensor
The quality for shaking raw material inside sieves is stated, and signal is passed into the controller, controller control first electricity
The working frequency of magnet, second electromagnet and the driving motor while meeting filter effect, helps to save energy
Source.
Advantageous effect is：1, silicon carbide can be carried out by first filter device and second filter device
Secondary filter, filter efficiency is high, only needs an equipment, helps to reduce equipment cost；
2, power is provided by the magnetic attraction of first electromagnet and second electromagnet, realizes and shakes filtering, led to
It crosses the driving motor and the cam and power is provided, realize lifting filtering, when filtering not will produce noise, while motion amplitude
Greatly, filter effect is helped to improve.
Description of the drawings
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
Obtain other attached drawings according to these attached drawings.
Fig. 1 is the dimensional structure diagram of the present invention；
Fig. 2 is the internal structure schematic diagram of the present invention；
Fig. 3 is the first filter apparatus configuration schematic diagram of the present invention；
Fig. 4 is the second filter apparatus configuration schematic diagram of the present invention；
Fig. 5 is the part A close-up schematic view of Fig. 1；
Fig. 6 is the control system block diagram of the present invention.
The reference numerals are as follows：
1, rack；2, outer case；201, sliding groove；3, controller；4, feed hopper；5, the first discharge bucket；6, the second discharging
Bucket；7, the second filter device；701, sieves is lifted；702, the second material guiding hopper；703, elevating lever；704, support column；705, it drives
Dynamic motor；706, driving cam；707, buffer spring；8, the first filter device；801, support shaft；802, sieves is shaken；
803, secondary spring；804, the first electromagnet；805, magnetic part；806, the first material guiding hopper；807, pressure sensor；808, second
Electromagnet；9, aggregate bin；10, bottom discharge pipe.
Specific implementation mode
To make the object, technical solutions and advantages of the present invention clearer, technical scheme of the present invention will be carried out below
Detailed description.Obviously, described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Base
Embodiment in the present invention, those of ordinary skill in the art are obtained all without making creative work
Other embodiment belongs to the range that the present invention is protected.
Shown in Fig. 1-Fig. 6, the present invention provides a kind of silicon carbide micro-powder secondary filter, including rack 1, racks
1 upper end is equipped with outer case 2, and 2 installed in front of outer case has controller 3,2 upper end of outer case to be equipped with feed hopper 4, feed hopper 4
Go deep into inside outer case 2；The first filter device 8 and the second filter device 7 are sequentially installed with inside outer case 2 from top to bottom, outside
2 both sides of babinet are respectively arranged with the first discharge bucket 5 and the second discharge bucket 6, and the first discharge bucket 5 is corresponding with the first filter device 8,
Second discharge bucket 6 is corresponding with the second filter device 7；Bottom is equipped with bottom discharge pipe 10, bottom discharge pipe 10 in outer case 2
Across rack 1；
First filter device 8 includes support shaft 801, pressure sensor 807, and support shaft 801 is mounted on inside outer case 2,
Support shaft 801 shares two, and symmetrical, and the outside of support shaft 801 is provided with secondary spring 803, by support shaft 801 and auxiliary
It helps spring 803 to coordinate, can assist realizing the reciprocating movement for shaking sieves 802；Shaking is slidably fitted between support shaft 801
Sieves 802 shakes the longitudinal both sides of sieves 802 and is mounted on magnetic part 805, coordinates the first electromagnet by magnetic part 805
804 and second electromagnet 808 can for shake sieves 802 reciprocating movement power is provided；It is embedding to shake bottom in sieves 802
Enter to have pressure sensor 807, pressure sensor 807 to be electrically connected with controller 3；It is installed respectively on the longitudinal both sides inner wall of outer case 2
There are the first electromagnet 804 and the second electromagnet 808, the first electromagnet 804 and the second electromagnet 808 to be electrically connected with controller 3；
Second filter device 7 includes driving motor 705, lifting sieves 701, and the longitudinal both side surface of outer case 2 is provided with
Sliding groove 201, support column 704 is equipped with inside sliding groove 201, and 704 outside of support column is provided with buffer spring 707, passes through branch
Dagger 704 and buffer spring 707 can assist realizing elevating lever 703 and lift the reciprocal lifting of sieves 701, support column 704
On be slidably fitted with elevating lever 703, be equipped between elevating lever 703 lifting sieves 701；2 front and back sides of outer case are pacified
Equipped with driving motor 705, driving motor 705 is electrically connected with controller 3, and 705 end of driving motor is equipped with driving cam 706,
Driving cam 706 is located at 703 lower section of elevating lever.
As optional embodiment, display screen and function key are provided on controller 3, setting in this way is easy to implement to dress
The control operation set；
It shakes sieves 802 to install using inclination, and shakes 802 end of sieves and the first material guiding hopper 806 is installed, in this way
The discharge for being easy to implement filtered raw material is set；
First discharge bucket 5 tilts installation, and 5 end of the first discharge bucket extends to 806 lower section of the first material guiding hopper, is arranged in this way
The raw material of the first material guiding hopper 806 can be made smoothly to fall on the first discharge bucket 5, be easy to implement the discharge of filtered raw material；
The both ends of secondary spring 803 are connected with 2 inner wall of outer case and 802 side of shaking sieves respectively, by auxiliary
It helps spring 803 that can assist realizing the reciprocating motion for shaking sieves 802, while cushioning effect can be played；
It lifts sieves 701 and is turned using peace is tilted, and lift 701 one end of sieves and the second material guiding hopper 702 is installed, in this way
The discharge for being easy to implement filtered raw material is set；
Second discharge bucket 6 tilts installation, and 6 end of the second discharge bucket extends to 702 lower section of the second material guiding hopper, is arranged in this way
The raw material of the second material guiding hopper 702 can be made smoothly to fall on the second discharge bucket 6, be easy to implement the discharge of filtered raw material；
The both ends of buffer spring 707 are connected with 201 bottom of sliding groove and 701 bottom of lifting sieves respectively, in this way
The reciprocal lifting that can assist realizing lifting sieves 701 is set, while playing cushioning effect；
10 upper end of bottom discharge pipe is equipped with aggregate bin 9, and aggregate bin 9 is located at 701 lower section of lifting sieves, by gathering materials
Bucket 9 can ensure that lifting the little particle raw material that sieves 701 filters accurately enters bottom discharge pipe 10, realizes original discharge.
Using the above structure, it when use device, by feed hopper 4 to raw material is injected inside device, is controlled by controller 3
First electromagnet 804 obtains electric, 808 dead electricity of the second electromagnet, under the magnetic force effect of the first electromagnet 804, shakes sieves
802 move to the first electromagnet 804, and controller 3 controls 804 dead electricity of the first electromagnet, the second electromagnet 808 must be electric, is assisting
Under the magnetic force effect of spring 803 and the second electromagnet 808, shakes sieves 802 and moved to the second electromagnet 808, pass through control
Device 3 processed control successively the first electromagnet 804 and the second electromagnet 808 electric, power failure state, realize and shake sieves 802
It moves back and forth, shakes filtering to realize, once filtered, particle is thinner to be fallen inside lifting sieves 701, and particle is thick
Pass through the first material guiding hopper 806 and the first discharge bucket 5 discharge；Controller 3 controls driving motor 705 and driving cam 706 is driven to revolve
Turn, make the interval of driving cam 706 that elevating lever 703 be driven to be lifted on lifting column, cooperation buffer spring 707, which can be realized, to be lifted
The reciprocal lifting of screen 701, to carry out secondary filter, particle it is thick pass through 6 row of the second material guiding hopper 702 and the second discharge bucket
Go out, particle is thin to be discharged by aggregate bin 9 and bottom discharge pipe 10；Device can realize double filtration, good filtration effect, efficiency
Height helps to reduce equipment cost, while the first electromagnet 804 and the second electromagnet 808 being used to provide power for primary filtering,
Power is provided for secondary filter by driving motor 705, operating noise is small, can prevent from causing noise pollution, shake sieves
802 is big with the motion amplitude of lifting sieves 701, helps to improve filter efficiency；Rolling can be detected by pressure sensor 807
The quality of 802 inside raw material of dynamic sieves, and signal is passed into controller 3, controller 3 controls the first electromagnet 804, second
The working frequency of electromagnet 808 and driving motor 705 while meeting filter effect, contributes to energy saving.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
Those familiar with the art in the technical scope disclosed by the present invention, can easily think of the change or the replacement, and should all contain
Lid is within protection scope of the present invention.Therefore, protection scope of the present invention should be based on the protection scope of the described claims.
Claims (9)
1. a kind of silicon carbide micro-powder secondary filter, including rack (1), it is characterised in that：Rack (1) upper end is equipped with
Outer case (2), outer case (2) installed in front have controller (3), outer case (2) upper end to be equipped with feed hopper (4),
It is internal that the feed hopper (4) gos deep into the outer case (2)；It is sequentially installed with the first mistake from top to bottom inside the outer case (2)
Device (8) and the second filter device (7) are filtered, outer case (2) both sides are respectively arranged with the first discharge bucket (5) and the second discharging
It struggles against (6), first discharge bucket (5) is corresponding with the first filter device (8), second discharge bucket (6) and described the
Two filter devices (7) are corresponding；The interior bottom of the outer case (2) is equipped with bottom discharge pipe (10), the bottom discharge pipe
(10) rack (1) is passed through；
First filter device (8) includes support shaft (801), pressure sensor (807), and the support shaft (801) is mounted on
The outer case (2) is internal, and the support shaft (801) shares two, and symmetrical, setting on the outside of the support shaft (801)
There is secondary spring (803)；It is slidably fitted between the support shaft (801) and shakes sieves (802), the shaking sieves
(802) longitudinal both sides are mounted on magnetic part (805)；The interior bottom of the shaking sieves (802) is embedded with the pressure sensing
Device (807), the pressure sensor (807) are electrically connected with the controller (3)；On the longitudinal both sides inner wall of the outer case (2)
It is separately installed with the first electromagnet (804) and the second electromagnet (808), first electromagnet (804) and second electromagnetism
Iron (808) is electrically connected with the controller (3)；
Second filter device (7) includes driving motor (705), lifting sieves (701), the outer case (2) longitudinal two
Side surface is provided with sliding groove (201), and support column (704), the support column (704) are equipped with inside the sliding groove (201)
Outside is provided with buffer spring (707), and elevating lever (703), the elevating lever are slidably fitted on the support column (704)
(703) the lifting sieves (701) is installed between；Outer case (2) front and back sides are mounted on the driving electricity
Machine (705), the driving motor (705) are electrically connected with the controller (3), and driving motor (705) end is equipped with drive
Moving cam (706), the driving cam (706) are located at below the elevating lever (703).
2. a kind of silicon carbide micro-powder secondary filter according to claim 1, it is characterised in that：The controller (3)
On be provided with display screen and function key.
3. a kind of silicon carbide micro-powder secondary filter according to claim 1, it is characterised in that：The shaking sieves
(802) using inclination installation, and shaking sieves (802) end is equipped with the first material guiding hopper (806).
4. a kind of silicon carbide micro-powder secondary filter according to claim 3, it is characterised in that：First discharge bucket
(5) installation is tilted, and first discharge bucket (5) end extends to below first material guiding hopper (806).
5. a kind of silicon carbide micro-powder secondary filter according to claim 3, it is characterised in that：The secondary spring
(803) both ends are connected with the outer case (2) inner wall and shaking sieves (802) side respectively.
6. a kind of silicon carbide micro-powder secondary filter according to claim 1, it is characterised in that：The lifting sieves
(701) turned using inclination peace, and described lifting sieves (701) one end is equipped with the second material guiding hopper (702).
7. a kind of silicon carbide micro-powder secondary filter according to claim 6, it is characterised in that：Second discharge bucket
(6) installation is tilted, and second discharge bucket (6) end extends to below second material guiding hopper (702).
8. a kind of silicon carbide micro-powder secondary filter according to claim 6, it is characterised in that：The buffer spring
(707) both ends are connected with the sliding groove (201) bottom and lifting sieves (701) bottom respectively.
9. a kind of silicon carbide micro-powder secondary filter according to claim 1, it is characterised in that：The bottom discharge pipe
(10) upper end is equipped with aggregate bin (9), and the aggregate bin (9) is located at below the lifting sieves (701).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810642687.7A CN108672300B (en) | 2018-06-21 | 2018-06-21 | Secondary filtering device for silicon carbide micro powder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810642687.7A CN108672300B (en) | 2018-06-21 | 2018-06-21 | Secondary filtering device for silicon carbide micro powder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108672300A true CN108672300A (en) | 2018-10-19 |
| CN108672300B CN108672300B (en) | 2023-08-22 |
Family
ID=63811827
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810642687.7A Active CN108672300B (en) | 2018-06-21 | 2018-06-21 | Secondary filtering device for silicon carbide micro powder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108672300B (en) |
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| CN109531246A (en) * | 2018-12-11 | 2019-03-29 | 重庆工业职业技术学院 | A kind of lathe dreg-containing disk cleaning device |
| CN109550678A (en) * | 2018-12-26 | 2019-04-02 | 谢世琴 | A kind of Sand screen for building |
| CN110434059A (en) * | 2019-08-07 | 2019-11-12 | 安徽信息工程学院 | Cam mechanism type tealeaves sorter |
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| CN109550678A (en) * | 2018-12-26 | 2019-04-02 | 谢世琴 | A kind of Sand screen for building |
| CN110434059A (en) * | 2019-08-07 | 2019-11-12 | 安徽信息工程学院 | Cam mechanism type tealeaves sorter |
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| Publication number | Publication date |
|---|---|
| CN108672300B (en) | 2023-08-22 |
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