CN108405335A - A kind of municipal works river sand screening plant - Google Patents
A kind of municipal works river sand screening plant Download PDFInfo
- Publication number
- CN108405335A CN108405335A CN201810114998.6A CN201810114998A CN108405335A CN 108405335 A CN108405335 A CN 108405335A CN 201810114998 A CN201810114998 A CN 201810114998A CN 108405335 A CN108405335 A CN 108405335A
- Authority
- CN
- China
- Prior art keywords
- control box
- river sand
- screening
- plate
- case
- 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.)
- Pending
Links
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
-
- 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
- B07B1/42—Drive mechanisms, regulating or controlling devices, or balancing devices, specially adapted for screens
-
- 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
- B07B1/46—Constructional details of screens in general; Cleaning or heating of screens
Landscapes
- Combined Means For Separation Of Solids (AREA)
Abstract
The invention discloses a kind of municipal works river sand screening plants, including control box, screening case is equipped in the control box, it is fixedly connected with cross spacing spring between screening case and control box, the output shaft of electric rotating machine is coaxially installed with the rotary shaft that rotary type is extend into screening case, rotating shaft surface is uniformly installed with several rotor plates, screening case right side wall is installed with right guide rod of the sliding through control box, and inner wall rotary type is equipped with the cam abutted with screening case outer right wall on the right side of the control box；The present invention carries out Stirring dispersion by the rotation of rotor plate to river sand, blasts hot wind into screening case by air intake cover, promotes the dispersion of river sand, avoids the agglomerating influence screening effect of river sand caking；The rotation of cam drives screening case horizontal line to shake back and forth, promotes river sand and realizes that screening, the vertical tremor of hang plate promote its further screening to river sand, the efficiency of screening to greatly increase across mesh.
Description
Technical field
Construction machinery technical field of the present invention, specifically a kind of municipal works river sand screening plant.
Background technology
Construction refers to the production activity of engineering construction implementation phase, is the building course of all kinds of buildings, can also
It says it is various lines on design drawing, in specified place, becomes process in kind.It includes basic engineering construction, master
Body structure construction, roof construction, decorative engineering construction etc..The place of construction operation is known as " construction site " or cries
" construction site ", is also named building site.
Need to use river sand in building construction process as construction material, and sand grains are not of uniform size, need to carry out
Screening requires to use satisfactory sand, current sand screening dress according to Specific construction to obtain the different sand of grain size
Set poor to the screening effect of sand, the speed of screening is slower.
Invention content
The purpose of the present invention is to provide a kind of municipal works river sand screening plants, to solve to carry in above-mentioned background technology
The problem of going out.
To achieve the above object, the present invention provides the following technical solutions：
A kind of municipal works river sand screening plant, including control box, the control box is interior to be equipped with screening case, sieves case and operates
It is fixedly connected with cross spacing spring between case, is slided on the control box and is equipped with left guide rod, left guide rod right end is fixedly mounted
The output shaft of electric rotating machine, electric rotating machine is coaxially installed with the rotary shaft that rotary type is extend into screening case, rotary shaft table
Face is uniformly installed with several rotor plates, and screening case right side wall is installed with sliding through the right guide rod of control box, institute
State and be installed with air-heater at the top of control box, screening box top be equipped with its internal air intake cover for be connected to setting, air intake cover and
Air-heater is connected to by air hose to be arranged；The screening case bottom surface rotary type is equipped with mobile side board, mobile side board and sieve
Branch mailbox bottom surface is uniformly provided with several mesh；Mobile side board end is detachably connected with by lock-screw and screening case；Institute
It states inner wall rotary type on the right side of control box and is equipped with the cam abutted with screening case outer right wall, be coaxially installed with actively on cam
Belt wheel, rotary type is equipped with hang plate in the control box, is embedded with sieve plate on hang plate, activity is offered on control box left side wall
Hole, hang plate pass through movable span, control box left side outer wall to be installed with the material collecting barrel being connected to control box by movable span；Behaviour
It is installed with extension fixed plate as box inner wall, extends and is installed with longitudinal spacing spring between fixed plate and hang plate；
Rotary type is equipped with runner in the operation box inner wall, and runner front is coaxially installed with driven pulley, and driven pulley passes through
Driven pulley is sequentially connected with driving pulley；Uniform ring is around being installed with several circular convex blocks, hang plate on the runner
Bottom surface is installed with several lower protruding blocks abutted with around convex block；It is installed with hydraulic pressure on the control box left side wall
Cylinder, connection push rod is connected on hydraulic cylinder, and connection push rod right end is installed with the push plate being slidably connected with control box inner bottom surface.
Scheme as an improvement of the present invention：The cross spacing spring left end is fixed on operation box inner wall, laterally
Limit spring right end is fixed on outer wall on the left of screening case.
Scheme as an improvement of the present invention：The rotor plate is along rotary shaft length direction equidistantly distributed.
Scheme as an improvement of the present invention：The hang plate lower-left is obliquely installed.
Scheme as an improvement of the present invention：The longitudinal spacing spring upper end is fixed on hang plate bottom surface, longitudinal
Limit spring lower end, which is fixed on, extends fixed plate upper surface.
Scheme as an improvement of the present invention：The actuated by cams is connected with driving motor.
Scheme as an improvement of the present invention：The control box bottom offers discharge nozzle vertically.
Scheme as an improvement of the present invention：The internal diameter of the mesh is more than the sieve pore internal diameter of sieve plate.
Compared with prior art, the beneficial effects of the invention are as follows：
The present invention carries out Stirring dispersion by the rotation of rotor plate to river sand, and heat is blasted into screening case by air intake cover
Wind promotes the dispersion of river sand, avoids the agglomerating influence screening effect of river sand caking；The rotation of cam drives screening case horizontal line back and forth
It shakes, promotes river sand and realize that screening, the vertical tremor of hang plate promote its further screening to river sand across mesh, sieve
The efficiency divided greatly increases.
Description of the drawings
Fig. 1 is the internal structure schematic diagram of the present invention；
Fig. 2 is the enlarged diagram in the portions A in Fig. 1；
Fig. 3 is the enlarged diagram in the portions B in Fig. 1.
In figure：1- control boxs, 2- screenings case, 3- air intake covers, 4- feed hoses, 5- feed hoppers, 6- air hoses, 7- hot winds
Machine, 8- rotor plates, 9- rotary shafts, 10- cams, the right guide rods of 11-, 12- driving pulleys, 13- driving belts, 14- sieve plates, 15- are pushed away
Plate, 16- connections push rod, 17- longitudinal spacings spring, 18- hydraulic cylinders, 19- hang plates, 20- material collecting barrels, 21- movable spans, 22- are left
Guide rod, 23- electric rotating machines, 24- cross spacings spring, 25- mobile side boards, 26- lock-screws, 27- mesh, 28- discharge nozzles,
29- extends fixed plate, 30- lower protruding blocks, 31- runners, 32- driven pulleys, 33- around convex block.
Specific implementation mode
The technical solution of this patent is described in more detail With reference to embodiment：
- 3 are please referred to Fig.1, a kind of municipal works river sand screening plant, including control box 1, interior be equipped with of the control box 1 are sieved
Case 2 sieves and is fixedly connected with cross spacing spring 24 between case 2 and control box 1, on the control box 1 sliding be equipped with a left side and lead
Electric rotating machine 23 is fixedly mounted in bar 22,22 right end of left guide rod, and the output shaft of electric rotating machine 23 is coaxially installed with rotary type and stretches
Enter to the rotary shaft 9 in screening case 2,9 surface of rotary shaft is uniformly installed with several rotor plates 8, it is solid to sieve 2 right side wall of case
Dingan County is equipped with sliding through the right guide rod 11 of control box 1, and 1 top of the control box is installed with air-heater 7, and screening case 2 pushes up
Portion is equipped with is connected to setting with air-heater 7 with its internal air intake cover 3 for being connected to setting, air intake cover 3 by air hose 6；The sieve
2 bottom surface rotary type of branch mailbox is equipped with mobile side board 25, and mobile side board 25 and screening 2 bottom surface of case are uniformly provided with several nets
Hole 27；25 end of mobile side board is detachably connected with by lock-screw 26 and screening case 2；1 right side inner wall rotation of the control box
Formula is equipped with the cam 10 abutted with screening 2 outer right wall of case, and driving pulley 12, the operation are coaxially installed on cam 10
Rotary type is equipped with hang plate 19 in case 1, is embedded with sieve plate 14 on hang plate 19, movable span 21 is offered on 1 left side wall of control box,
Hang plate 19 passes through movable span 21, and 1 left side outer wall of control box, which is installed with, to be gathered materials by movable span 21 with what control box 1 was connected to
Bucket 20；1 madial wall of control box, which is installed with, extends fixed plate 29, extends and is installed between fixed plate 29 and hang plate 19
Longitudinal spacing spring 17；Rotary type is equipped with runner 31 on 1 madial wall of the control box, the front of runner 31 be coaxially installed with from
Movable belt pulley 32, driven pulley 32 are sequentially connected by driven pulley 32 and driving pulley 12；Uniform ring is around solid on the runner 31
Dingan County is equipped with several circular convex blocks 33, and 19 bottom surface of hang plate is installed with several lower protruding blocks abutted with around convex block 33
30；It is installed with hydraulic cylinder 18 on 1 left side wall of the control box, connection push rod 16 is connected on hydraulic cylinder 18, connects push rod
16 right ends are installed with the push plate 15 being slidably connected with 1 inner bottom surface of control box.
The application method and operation principle of the present invention.
In use, the river sand sieved is added into control box 1 by feed hopper 5, air-heater 7 generates hot wind,
Hot wind is transported to air intake cover 3 by air hose 6 and enters in screening case 2, starts electric rotating machine 23 and drives 9 turns of rotary shaft
Dynamic, rotary shaft 9 drives rotor plate 8 to carry out Stirring to the river sand in screening case 2, and heat is obtained while promoting river sand dispersion
The drying of wind, avoid lump between river sand it is agglomerating；Driving motor band moving cam 10 rotates, and cam 10 pushes screening case 2 in cross
Bilateral reciprocation under to the elastic acting force of limit spring 24, so promote screening case 2 in river sand shaking, promote compared with
Short grained river sand, which passes through, to be fallen under mesh 27 on hang plate 19, and driving pulley 12 is driven while rotation by driving belt 13
Driven pulley 32 rotates, and driven pulley 32 drives runner 31 to rotate, and runner 31, which drives, to be rotated around convex block 33 and by supporting therewith
The lower protruding block 30 connect drives hang plate 19 to realize vibrations under the elastic acting force of longitudinal spacing spring 17, promotes smaller river
Sand drops into 1 bottom of control box across sieve plate 14, and the river sand that cannot pass through sieve plate 14 slides into collection to left down along hang plate 19
It is collected in charging basket 20, is taken out out of material collecting barrel 20 at this time；Lock-screw 26 of then dismantling opens mobile side board 25, sieves case
It falls on hang plate 19 and is slid into material collecting barrel 20 under river sand inside 2 and collected；Starting hydraulic cylinder 18 drives connection to push away
Bar 16 pushes to the right push plate 15, push plate 15 that the river sand of bottom in control box 1 is pushed into discharge nozzle 28, most tiny into obtaining
River sand.
The present invention carries out Stirring dispersion by the rotation of rotor plate 8 to river sand, by air intake cover 3 into screening case 2
Hot wind is blasted, the dispersion of river sand is promoted, avoids the agglomerating influence screening effect of river sand caking；The rotation of cam 10 drives screening case
2 horizontal lines shake back and forth, promote river sand and realize that screening, the vertical tremor of hang plate 19 promote it to river sand across mesh 27
Further screening, the efficiency of screening greatly increase.
It is obvious to a person skilled in the art that invention is not limited to the details of the above exemplary embodiments, Er Qie
In the case of without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power
Profit requires rather than above description limits, it is intended that all by what is fallen within the meaning and scope of the equivalent requirements of the claims
Variation is included within the present invention.Any reference signs in the claims should not be construed as limiting the involved claims.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
The other embodiment being appreciated that.
Claims (8)
1. a kind of municipal works river sand screening plant, including control box（1）, which is characterized in that the control box（1）Inside it is equipped with
Sieve case（2）, sieve case（2）With control box（1）Between be fixedly connected with cross spacing spring（24）, the control box（1）On
Sliding is equipped with left guide rod（22）, left guide rod（22）Electric rotating machine is fixedly mounted in right end（23）, electric rotating machine（23）Output shaft
Coaxially being installed with rotary type extend into screening case（2）Interior rotary shaft（9）, rotary shaft（9）Surface is uniformly installed with
Several rotor plates（8）, sieve case（2）Right side wall is installed with sliding and runs through control box（1）Right guide rod（11）, the behaviour
Make case（1）Top is installed with air-heater（7）, sieve case（2）Top is equipped with and its internal air intake cover for being connected to setting（3）,
Air intake cover（3）With air-heater（7）Pass through air hose（6）Connection setting；The screening case（2）Bottom surface rotary type is equipped with work
Dynamic side plate（25）, mobile side board（25）With screening case（2）Bottom surface is uniformly provided with several mesh（27）；Mobile side board（25）
End passes through lock-screw（26）With screening case（2）It is detachably connected with；The control box（1）Right side inner wall rotary type is equipped with and sieve
Branch mailbox（2）The cam that outer right wall abuts（10）, cam（10）On be coaxially installed with driving pulley（12）, the control box
（1）Interior rotary type is equipped with hang plate（19）, hang plate（19）On be embedded with sieve plate（14）, control box（1）It is offered on left side wall
Movable span（21）, hang plate（19）Across movable span（21）, control box（1）Left side outer wall, which is installed with, passes through movable span（21）
With control box（1）The material collecting barrel of connection（20）；Control box（1）Madial wall is installed with extension fixed plate（29）, extend and fix
Plate（29）With hang plate（19）Between be installed with longitudinal spacing spring（17）；The control box（1）Rotary type on madial wall
Equipped with runner（31）, runner（31）Front is coaxially installed with driven pulley（32）, driven pulley（32）Pass through driven pulley
（32）With driving pulley（12）It is sequentially connected；The runner（31）Upper uniform ring is around being installed with several circular convex blocks
（33）, hang plate（19）Bottom surface is installed with several and surround convex block（33）The lower protruding block of abutting（30）；The control box
（1）Hydraulic cylinder is installed on left side wall（18）, hydraulic cylinder（18）On be connected with connection push rod（16）, connect push rod（16）It is right
End is installed with and control box（1）The push plate that inner bottom surface is slidably connected（15）.
2. municipal works according to claim 1 river sand screening plant, which is characterized in that the cross spacing spring
（24）Left end is fixed on control box（1）Madial wall, cross spacing spring（24）Right end is fixed on screening case（2）Left side outer wall.
3. municipal works according to claim 1 river sand screening plant, which is characterized in that the rotor plate（8）Along
Rotary shaft（9）Length direction equidistantly distributed.
4. municipal works according to claim 1 river sand screening plant, which is characterized in that the hang plate（19）Lower-left
It is obliquely installed.
5. municipal works according to claim 1 river sand screening plant, which is characterized in that the longitudinal spacing spring
（17）Upper end is fixed on hang plate（19）Bottom surface, longitudinal spacing spring（17）Lower end is fixed on extension fixed plate（29）Upper table
Face.
6. municipal works according to claim 1 river sand screening plant, which is characterized in that the cam（10）Driving connects
It is connected to driving motor.
7. municipal works according to claim 1 river sand screening plant, which is characterized in that the control box（1）Bottom
Offer discharge nozzle vertically（28）.
8. municipal works according to claim 1 river sand screening plant, which is characterized in that the mesh（27）Internal diameter
More than sieve plate（14）Sieve pore internal diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810114998.6A CN108405335A (en) | 2018-02-06 | 2018-02-06 | A kind of municipal works river sand screening plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810114998.6A CN108405335A (en) | 2018-02-06 | 2018-02-06 | A kind of municipal works river sand screening plant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108405335A true CN108405335A (en) | 2018-08-17 |
Family
ID=63126901
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810114998.6A Pending CN108405335A (en) | 2018-02-06 | 2018-02-06 | A kind of municipal works river sand screening plant |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108405335A (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108940877A (en) * | 2018-09-11 | 2018-12-07 | 江苏冠开实业发展有限公司 | A kind of wear-resistant material preparation raw material screening feeding device |
| CN109396028A (en) * | 2018-12-21 | 2019-03-01 | 武威天马饲料有限公司 | Screening plant is used in a kind of processing of cattle and sheep Feed Manufacturing |
| CN109482497A (en) * | 2018-12-03 | 2019-03-19 | 佛山科学技术学院 | A kind of sand removes matter device |
| CN109676794A (en) * | 2018-12-28 | 2019-04-26 | 李海 | A kind of cement stirring device for building |
| CN110252647A (en) * | 2019-05-24 | 2019-09-20 | 赣州市兴顺辉科技有限公司 | A kind of bridge construction construction sand screening plant |
| CN110470560A (en) * | 2019-08-08 | 2019-11-19 | 河南省第二公路工程有限公司 | Cement stabilized macadam mixture ratio designs automatic sieving instrument and backstepping design method |
| CN111185366A (en) * | 2019-12-27 | 2020-05-22 | 烟台职业学院 | High-efficient sieving mechanism of wheat flour for food processing |
| CN111590728A (en) * | 2020-05-24 | 2020-08-28 | 任立娜 | Component equipment |
| CN112191526A (en) * | 2020-11-10 | 2021-01-08 | 常德市龙凤米业有限公司 | Rice processing equipment with multi-stage screening function and using method thereof |
| CN112796497A (en) * | 2020-12-31 | 2021-05-14 | 于雪 | Anti-static concrete construction device |
| CN112934317A (en) * | 2021-01-29 | 2021-06-11 | 黄河水利职业技术学院 | Geotechnical engineering sample processor with dust falling function and using method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107282421A (en) * | 2017-07-25 | 2017-10-24 | 康泽波 | A kind of municipal construction sand screening plant |
| CN206716455U (en) * | 2017-05-22 | 2017-12-08 | 叶建龙 | A kind of agricultural uses seed screening plant |
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2018
- 2018-02-06 CN CN201810114998.6A patent/CN108405335A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206716455U (en) * | 2017-05-22 | 2017-12-08 | 叶建龙 | A kind of agricultural uses seed screening plant |
| CN107282421A (en) * | 2017-07-25 | 2017-10-24 | 康泽波 | A kind of municipal construction sand screening plant |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108940877A (en) * | 2018-09-11 | 2018-12-07 | 江苏冠开实业发展有限公司 | A kind of wear-resistant material preparation raw material screening feeding device |
| CN109482497A (en) * | 2018-12-03 | 2019-03-19 | 佛山科学技术学院 | A kind of sand removes matter device |
| CN109396028A (en) * | 2018-12-21 | 2019-03-01 | 武威天马饲料有限公司 | Screening plant is used in a kind of processing of cattle and sheep Feed Manufacturing |
| CN109676794A (en) * | 2018-12-28 | 2019-04-26 | 李海 | A kind of cement stirring device for building |
| CN110252647A (en) * | 2019-05-24 | 2019-09-20 | 赣州市兴顺辉科技有限公司 | A kind of bridge construction construction sand screening plant |
| CN110470560A (en) * | 2019-08-08 | 2019-11-19 | 河南省第二公路工程有限公司 | Cement stabilized macadam mixture ratio designs automatic sieving instrument and backstepping design method |
| CN111185366A (en) * | 2019-12-27 | 2020-05-22 | 烟台职业学院 | High-efficient sieving mechanism of wheat flour for food processing |
| CN111185366B (en) * | 2019-12-27 | 2021-11-19 | 烟台职业学院 | High-efficient sieving mechanism of wheat flour for food processing |
| CN111590728A (en) * | 2020-05-24 | 2020-08-28 | 任立娜 | Component equipment |
| CN111590728B (en) * | 2020-05-24 | 2021-09-28 | 苏州贝基电子科技有限公司 | Component equipment |
| CN112191526A (en) * | 2020-11-10 | 2021-01-08 | 常德市龙凤米业有限公司 | Rice processing equipment with multi-stage screening function and using method thereof |
| CN112796497A (en) * | 2020-12-31 | 2021-05-14 | 于雪 | Anti-static concrete construction device |
| CN112934317A (en) * | 2021-01-29 | 2021-06-11 | 黄河水利职业技术学院 | Geotechnical engineering sample processor with dust falling function and using method thereof |
| CN112934317B (en) * | 2021-01-29 | 2022-06-07 | 黄河水利职业技术学院 | Geotechnical engineering sample processor with dust falling function and using method thereof |
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| SE01 | Entry into force of request for substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180817 |
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| RJ01 | Rejection of invention patent application after publication |