CN107020239A - A kind of construction place high-efficiency sand sieve - Google Patents
A kind of construction place high-efficiency sand sieve Download PDFInfo
- Publication number
- CN107020239A CN107020239A CN201710437741.XA CN201710437741A CN107020239A CN 107020239 A CN107020239 A CN 107020239A CN 201710437741 A CN201710437741 A CN 201710437741A CN 107020239 A CN107020239 A CN 107020239A
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- Prior art keywords
- top plate
- shaft
- belt
- construction place
- place high
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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
- B02C13/00—Disintegrating by mills having rotary beater elements ; Hammer mills
- B02C13/02—Disintegrating by mills having rotary beater elements ; Hammer mills with horizontal rotor shaft
-
- 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
-
- 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
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- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Combined Means For Separation Of Solids (AREA)
Abstract
The invention discloses a kind of construction place high-efficiency sand sieve, including bottom plate, bottom plate upper end both sides are connected with support frame, support frame top is connected with top plate, drive gear is connected with the middle part of top plate, top plate upper center is fixed with guide rod, guide sleeve is provided with the middle part of guide rod, guide sleeve lower end is connected with left rack, lower end, which is connected with, on the left of left rack moves to left lever, top plate lower end is fixed with slide rail, sliding block is provided with the middle part of slide rail, upper end of slide block is connected with right rack, it is connected with the downside of right rack right-hand member and moves to right lever, screen cloth upper end is provided with crushing shaft, crushing shaft right-hand member is connected with crushing belt wheel, crush belt wheel upper end and driven pulley is connected with by belt, driven pulley left end is connected with belt shaft, belt shaft left end is connected with driving gear, driving gear front end is engaged with driven gear.The present invention, the need for realizing that rough sand remained to screen cloth upper end is crushed, adds the screening quality of sieve, it is to avoid the later stage pulverization process of rough sand.
Description
Technical field
The present invention relates to construction equipment technical field, specifically a kind of construction place high-efficiency sand sieve.
Background technology
Sand is one of the most frequently used construction material.When being constructed in construction place, sand is used, and sand is being bought
Can not directly it be used when returning, before use, needing to be screened sand.Artificial screening is wasted time and energy, and efficiency is low.By
Step is substituted by sand sieving machine.Existing sand sieving machine is generally divided into drum type sand screening machine, washing drum type sand screening machine, vibration sieve type sieve
Husky machine etc., is all often that, to sand processing, this husky treatment effect of sieve is bad, needs using common screen cloth in construction
It can just be met the requirements by multiple sieve sand processing, otherwise can influence the construction quality of construction.
Chinese patent (Authorization Notice No.：CN206104353U a kind of high-efficiency sand sieve, including sieve sandbox and sieve) are disclosed
Husky cylinder, although the device adds the high frequency zone to sand to a certain extent, but in real process, the Sand screen
Fine sand can only screened, and larger rough sand can only be reclaimed, and cause the waste of sandstone, practicality
Difference.
The content of the invention
It is an object of the invention to provide a kind of construction place high-efficiency sand sieve, to solve in above-mentioned background technology
The problem of proposition.
To achieve the above object, the present invention provides following technical scheme：
A kind of construction place high-efficiency sand sieve, including bottom plate, bottom plate upper end both sides are connected with support frame, branch
Support top is connected with the middle part of top plate, top plate and is connected with drive gear, and the top plate upper center is fixed with guide rod, led
Guide sleeve is provided with the middle part of to bar, guide sleeve lower end is connected with left rack, and left rack left side lower end, which is connected with, moves to left lever, the top
Plate lower end, which is fixed with the middle part of slide rail, slide rail, is provided with sliding block, and upper end of slide block is connected with the downside of right rack, right rack right-hand member and is connected with the right side
Mobile bar, it is described move to left lever and move to right screen cloth is connected between lever lower end, screen cloth upper end is provided with crushing shaft, crushing shaft right-hand member
Crushing belt wheel is connected with, belt wheel upper end is crushed and driven pulley is connected with by belt, driven pulley left end is connected with belt shaft, band
Wheel shaft left end is connected with driving gear, and driving gear front end is engaged with driven gear, and driven gear front end coaxial position is connected with
Crank is connected with the middle part of rotating wheel, rotating wheel, crank left end is connected with connecting rod, and connecting rod left end is connected with stop collar, stop collar
End connection is connected with fix bar, and fix bar lower end connection clamping device, clamping device is clamped inside case provided with liter including clamping case
Cylinder drops, and lift cylinders lower end is connected with lifting shaft, and lifting shaft lower end is connected with push pedal, and push pedal lower end both sides are connected with pull bar, pull bar
Lower end is connected with clamping bar, and the driven pulley upper end is connected with driving pulley by belt, and driving pulley left end is connected with deceleration
Device, decelerator left end is connected with motor.
It is used as further scheme of the invention：It is connected with the outside of the drive gear in the middle part of the incomplete gear teeth, drive gear
Drive shaft is connected with, drive shaft is connected with motor.
It is used as further scheme of the invention：The motor and decelerator are fixedly connected with the right side of top plate upper end.
It is used as further scheme of the invention：Gag lever post is provided with the middle part of the stop collar, gag lever post left end is fixedly connected with
Support frame, the gag lever post right-hand member is connected with baffle plate.
It is used as further scheme of the invention：The crank is connected on the non-home position of rotating wheel.
It is used as further scheme of the invention：Crushed leaves are uniformly provided with the outside of the crushing shaft.
It is used as further scheme of the invention：The screen cloth lower end is fixed in bottom plate upper end provided with the husky groove of storage, the husky groove of storage
Portion.
It is used as further scheme of the invention：The crushing shaft two ends are connected with support frame two ends by bearing.
It is used as further scheme of the invention：The pull bar is connected with push pedal and clamping bar, the clamping bar by articulated manner
For ">" shape.
It is used as further scheme of the invention：2 road pulley grooves are provided with the outside of the driven pulley.
It is used as further scheme of the invention：The slide rail is trapezoidal slide rail, and the sliding block is dovetail groove sliding block.
Compared with prior art, the beneficial effects of the invention are as follows：
A kind of construction place high-efficiency sand sieve, it is rational in infrastructure, it is novel in design, by provided with left rack and
The mutual cooperation of right rack, realizes and screen cloth is moved left and right, so meet to sand screen the need for, while by setting
Have crushing shaft realize to screen cloth upper end remain rough sand crush the need for, considerably increase the screening quality of sieve, it is to avoid
The later stage pulverization process of rough sand, it is practical, in addition, by provided with crank and stop collar realize to clamping device
Bilateral reciprocation so that sand can move back and forth in toppling process, it is to avoid sand and be blocked on a large scale on screen cloth, greatly
The reliability of whole sand sieving machine is added greatly.
Brief description of the drawings
Fig. 1 is a kind of structural representation of construction place high-efficiency sand sieve.
Fig. 2 is the structural representation of clamping device in a kind of high-efficiency sand sieve of construction place.
Fig. 3 is the backsight structural representation of rotating wheel in a kind of high-efficiency sand sieve of construction place.
Fig. 4 is the structural representation of drive gear in a kind of high-efficiency sand sieve of construction place.
Embodiment
It should be noted that in the case where not conflicting, the embodiment in the present invention and the feature in embodiment can phases
Mutually combination.
In the description of the invention, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " on ", " under ",
The orientation or position relationship of the instruction such as "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom ", " interior ", " outer " are
Based on orientation shown in the drawings or position relationship, it is for only for ease of the description present invention and simplifies description, rather than indicate or dark
Specific orientation must be had, with specific azimuth configuration and operation by showing the device or element of meaning, therefore it is not intended that right
The limitation of the present invention.In addition, term " first ", " second " etc. are only used for describing purpose, and it is not intended that indicating or implying phase
To importance or the implicit quantity for indicating indicated technical characteristic.Thus, the feature for defining " first ", " second " etc. can
To express or implicitly include one or more this feature.In the description of the invention, unless otherwise indicated, " multiple "
It is meant that two or more.
In the description of the invention, it is necessary to illustrate, unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or be integrally connected；Can
To be mechanical connection or electrical connection；Can be joined directly together, can also be indirectly connected to by intermediary, Ke Yishi
The connection of two element internals.For the ordinary skill in the art, above-mentioned term can be understood by concrete condition
Concrete meaning in the present invention.
Describe the present invention in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
Refering to Fig. 1~4, in the embodiment of the present invention, a kind of construction place high-efficiency sand sieve, including bottom plate 1, it is described
The upper end both sides of bottom plate 1 are connected with support frame 4, and the top of support frame 4 is connected with top plate 12, and the middle part of top plate 12 is connected with sliding tooth
Wheel 10, the outside of drive gear 10 is connected with the incomplete gear teeth 102, and the middle part of drive gear 10 is connected with drive shaft 101, drive shaft
101 are connected with motor, for driving drive gear 10 to turn clockwise, and the upper center of top plate 12 is fixed with guide rod
11, the middle part of guide rod 11 is provided with guide sleeve 9, and the guide sleeve 9 can horizontally slip along guide rod 11, and then to move to left lever
Guide effect is played in 5 movement, and the lower end of guide sleeve 9 is connected with left rack 8, and the left left side lower end of rack 8, which is connected with, moves to left lever 5,
The lower end of top plate 12 is fixed with slide rail 6, and the middle part of slide rail 6 is provided with sliding block 16, and the sliding block 16 can be sliding along slide rail 6 or so
It is dynamic, and then guide effect is played to move to right moving left and right for lever 19, slide rail 6 is trapezoidal slide rail, and the sliding block 16 is dovetail groove
Sliding block, the upper end of sliding block 16, which is connected with to be connected with the downside of right rack 7, the right right-hand member of rack 7, moves to right lever 19, described to move to left the He of lever 5
Move to right and screen cloth 2 is connected between the lower end of lever 19, the lower end of screen cloth 2 is provided with the husky groove 22 of storage, for collecting fine sand after screening, storage
Husky groove 22 is fixed on the upper center of bottom plate 1, and the upper end of screen cloth 2 is provided with crushing shaft 21, and the outside of crushing shaft 21 is uniformly provided with crushed leaves 3,
The pulverization to the upper end sand of screen cloth 2 is realized, the two ends of crushing shaft 21 are connected with the two ends of support frame 4 by bearing, are used for
The fixation to the two ends of crushing shaft 21 is realized, and then realizes the fixation at the two ends to obtaining crushing shaft 21, it is to avoid crushing shaft 21
Occur during rotating shredder crooked, the right-hand member of crushing shaft 21 is connected with crushing belt wheel 20, crushes belt wheel 20 upper end and passes through belt
Driven pulley 17 is connected with, the outside of driven pulley 17 is provided with 2 road pulley grooves, for being connected to driving pulley 15 and crushing belt wheel
20, the left end of driven pulley 17 is connected with belt shaft 18, and the left end of belt shaft 18 is connected with driving gear 31, and the front end of driving gear 31 is nibbled
Conjunction has driven gear 30, and the front end coaxial position of driven gear 30 is connected with rotating wheel 29, and the middle part of rotating wheel 29 is connected with crank 28,
Crank 28 is connected on the non-home position of rotating wheel 29, and then realizes the slider-crank mechanism in mechanical structure so that limit
Position set 24 can be moved left and right along gag lever post 23, and the left end of crank 28 is connected with connecting rod 27, and the left end of connecting rod 27 is connected with stop collar
24, the middle part of stop collar 24 is provided with gag lever post 23, and the left end of gag lever post 23 is fixedly connected with support frame 4, for realizing to gag lever post
23 support is fixed, and the right-hand member of gag lever post 23 is connected with baffle plate, and stop collar 24 is turned right along gag lever post 23 for realizing
It is spacing when mobile, it is to avoid stop collar 24 and depart from gag lever post 23, the lower end of stop collar 24 is connected with fix bar 23, fix bar
23 lower ends connect clamping device 25, and clamping device 25 includes clamping case 250, clamp the inside of case 250 and are provided with lift cylinders 251, are used for
Push pedal 253 is promoted to move forward and backward, the lower end of lift cylinders 251 is connected with lifting shaft 252, and the lower end of lifting shaft 252 is connected with push pedal
253, the lower end both sides of push pedal 253 are connected with pull bar 254, and the lower end of pull bar 254 is connected with clamping bar 255, and the upper end of clamping bar 255 passes through
Articulated manner is connected to clamping case 250 bottom, and the upper end of driven pulley 17 is connected with driving pulley 15, drive belt by belt
Take turns 15 left ends and be connected with decelerator 14, for realizing that the speed exported to motor 13 is slowed down, the left end of decelerator 14 connects
Motor 13 is connected to, motor 13 and decelerator 14 are fixedly connected with the right side of the upper end of top plate 12, for realizing to driving
The fixation of dynamic motor 13 and decelerator 14.
A kind of construction place high-efficiency sand sieve, during work, starts the lift cylinders 251 in clamping device 25,
So that lift cylinders 251 drive lifting shaft 252 up to move, clamping bar 255 is then caused by push pedal 253 and the effect of pull bar 254
Toward medial movement, the fixation to sandstone bag is realized so that the sack of sandstone bag simultaneously, starts driving electricity against screen cloth 2
Machine 13 and drive gear 10 so that motor 13 drives driving pulley 15 to rotate, and is then caused by the effect of belt driven
Belt wheel 17 and crush belt wheel 20 and rotate, during driven pulley 17 rotates, pass through driving gear 31 and driven gear 30
Engagement, rotates rotating wheel 29, then causes stop collar 24 along stop collar 23 by the effect of crank 28 and connecting rod 27
Move left and right, and then make it that the sandstone bag of the lower end of clamping device 25 can be with uniform sequential carry out blanking, it is to avoid sand large quantities of
Amount is fallen, and reduces the blocking of screen cloth 2, during driven pulley 17 rotates, and crushes the synchronous axial system of belt wheel 20, and then drive
Crushing shaft 21 and the synchronous axial system of crushed leaves 3, the crushing to rough sand on screen cloth 2 is realized, it is to avoid the waste of sandstone, afterwards
Fine sand each falls within the husky groove 22 of storage and reclaimed, in the crushing process of crushing shaft 21, the incomplete gear teeth 102 on drive gear 10
Synchronous axial system, in the engagement process of the incomplete gear teeth 102 and left rack 8, moves to left lever 5 and drives screen cloth 2 toward moving right, not
The complete gear teeth 102 drive screen cloth 2 toward moving left with the engagement process of right rack 7, moving to right lever 19, due to drive gear 10 with
The periodicity of left rack 8 and right rack 7 engagement, so that screen cloth does left and right linear reciprocating motion, considerably increases screen cloth
The sandy amount of sieve.The present invention, it is rational in infrastructure, it is novel in design, by provided with left rack 8 and right rack 7 mutual cooperation, realize
Moving left and right to screen cloth 2, and then the need for meeting sand being screened, while by being realized provided with crushing shaft 21 to sieve
The need for rough sand of the upper end of net 2 residual is crushed, the screening quality of sieve is considerably increased, it is to avoid the later stage of rough sand crushes
Processing, it is practical, in addition, by provided with crank 28 and stop collar 24 realize and the left and right of clamping device 25 back and forth transported
It is dynamic so that sand can move back and forth in toppling process, it is to avoid sand and block on the screen 2 on a large scale, considerably increase
The reliability of whole sand sieving machine.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
God is with principle, and any modification, equivalent substitution and improvements made etc. should be included in the scope of the protection.
Claims (7)
1. a kind of construction place high-efficiency sand sieve, including bottom plate（1）, it is characterised in that the bottom plate（1）Upper end both sides
It is connected with support frame（4）, support frame（4）Top is connected with top plate（12）, top plate（12）Middle part is connected with drive gear
（10）, drive gear（10）Outside is connected with the incomplete gear teeth（102）, drive gear（10）Middle part is connected with drive shaft（101）,
Drive shaft（101）It is connected with motor, the top plate（12）Upper center is fixed with guide rod（11）, guide rod（11）Middle part is provided with
Guide sleeve（9）, guide sleeve（9）Lower end is connected with left rack（8）, left rack（8）Left side lower end, which is connected with, moves to left lever（5）, institute
State top plate（12）Lower end is fixed with slide rail（6）, slide rail（6）Middle part is provided with sliding block（16）, sliding block（16）Upper end is connected with right rack
（7）, right rack（7）It is connected with the downside of right-hand member and moves to right lever（19）, it is described to move to left lever（5）With move to right lever（19）Between lower end
It is connected with screen cloth（2）, screen cloth（2）Upper end is provided with crushing shaft（21）, crushing shaft（21）Right-hand member is connected with crushing belt wheel（20）, crush
Belt wheel（20）Upper end is connected with driven pulley by belt（17）, driven pulley（17）Left end is connected with belt shaft（18）, belt wheel
Axle（18）Left end is connected with driving gear（31）, driving gear（31）Front end is engaged with driven gear（30）, driven gear（30）
Front end coaxial position is connected with rotating wheel（29）, rotating wheel（29）Middle part is connected with crank（28）, crank（28）Left end is connected with
Connecting rod（27）, connecting rod（27）Left end is connected with stop collar（24）, stop collar（24）Middle part is provided with gag lever post（23）, gag lever post（23）
Left end is fixedly connected with support frame（4）, the gag lever post（23）Right-hand member is connected with baffle plate, stop collar（24）Lower end is connected with
Fix bar（23）, fix bar（23）Lower end connects clamping device（25）, clamping device（25）Including clamping case（250）, clamp case
（250）Inside is provided with lift cylinders（251）, lift cylinders（251）Lower end is connected with lifting shaft（252）, lifting shaft（252）Lower end is connected
There is push pedal（253）, push pedal（253）Lower end both sides are connected with pull bar（254）, pull bar（254）Lower end is connected with clamping bar（255）, institute
State driven pulley（17）Upper end is connected with driving pulley by belt（15）, driving pulley（15）Left end is connected with decelerator
（14）, decelerator（14）Left end is connected with motor（13）, motor（13）And decelerator（14）It is fixedly connected with top
Plate（12）On the right side of upper end.
2. a kind of construction place high-efficiency sand sieve according to claim 1, it is characterised in that the crank（28）
It is connected to rotating wheel（29）Non- home position on.
3. a kind of construction place high-efficiency sand sieve according to claim 1, it is characterised in that the crushing shaft
（21）Outside is uniformly provided with crushed leaves（3）.
4. a kind of construction place high-efficiency sand sieve according to claim 1, it is characterised in that the screen cloth（2）
Lower end is provided with the husky groove of storage（22）, the husky groove of storage（22）It is fixed on bottom plate（1）Upper center.
5. a kind of construction place high-efficiency sand sieve according to claim 1, it is characterised in that the crushing shaft
（21）Two ends are connected with support frame by bearing（4）Two ends.
6. a kind of construction place high-efficiency sand sieve according to claim 1, it is characterised in that the driven pulley
（17）Outside is provided with 2 road pulley grooves.
7. a kind of construction place high-efficiency sand sieve according to claim 1, it is characterised in that the slide rail（6）
For trapezoidal slide rail, the sliding block（16）For dovetail groove sliding block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710437741.XA CN107020239A (en) | 2017-06-12 | 2017-06-12 | A kind of construction place high-efficiency sand sieve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710437741.XA CN107020239A (en) | 2017-06-12 | 2017-06-12 | A kind of construction place high-efficiency sand sieve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107020239A true CN107020239A (en) | 2017-08-08 |
Family
ID=59531465
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710437741.XA Withdrawn CN107020239A (en) | 2017-06-12 | 2017-06-12 | A kind of construction place high-efficiency sand sieve |
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| Country | Link |
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| CN (1) | CN107020239A (en) |
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| CN107536087A (en) * | 2017-09-19 | 2018-01-05 | 郑州大学 | A kind of Feed Manufacturing processing atomization oil spout mixing arrangement |
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| CN107597574A (en) * | 2017-10-30 | 2018-01-19 | 深圳市晟腾企业管理有限公司 | A kind of construction site rough sand screening plant |
| CN107617465A (en) * | 2017-09-27 | 2018-01-23 | 温州大学激光与光电智能制造研究院 | Lithotripsy apparatus |
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| CN107536087A (en) * | 2017-09-19 | 2018-01-05 | 郑州大学 | A kind of Feed Manufacturing processing atomization oil spout mixing arrangement |
| CN107617465A (en) * | 2017-09-27 | 2018-01-23 | 温州大学激光与光电智能制造研究院 | Lithotripsy apparatus |
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| CN107931097A (en) * | 2017-11-10 | 2018-04-20 | 张子和 | A kind of construction with swing function husky equipment of sieve |
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| CN108113586A (en) * | 2017-12-21 | 2018-06-05 | 赖桂英 | A kind of hospital's equipment that mops floor |
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| CN108339744A (en) * | 2018-02-10 | 2018-07-31 | 张炳强 | A kind of damping type lifting vibrating type screening plant of building material |
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| CN108855355A (en) * | 2018-06-13 | 2018-11-23 | 郑州靓岛建筑设计有限公司 | A kind of Sand screen for building of uniform blanking |
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| CN109433606B (en) * | 2018-10-31 | 2023-11-24 | 河南黎明重工科技股份有限公司 | Doublestage mechanism sand recovery unit |
| CN110142120A (en) * | 2019-05-21 | 2019-08-20 | 吴祖铭 | A kind of rare earth ore milling equipment |
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| CN112518949A (en) * | 2020-11-24 | 2021-03-19 | 陈惠风 | Engineering construction is with adjustable auxiliary assembly who eliminates concrete honeycomb pitted surface |
| CN112827817A (en) * | 2020-12-23 | 2021-05-25 | 黑龙江乔继增农业科技有限公司 | Grain sieve separator |
| CN112827817B (en) * | 2020-12-23 | 2022-08-12 | 黑龙江乔继增农业科技有限公司 | Grain sieve separator |
| CN113600473A (en) * | 2021-08-09 | 2021-11-05 | 中铁城建集团有限公司 | Device and method for preparing concrete from construction waste |
| CN113600473B (en) * | 2021-08-09 | 2022-05-20 | 中铁城建集团有限公司 | Device and method for preparing concrete from construction waste |
| CN115431143A (en) * | 2022-06-02 | 2022-12-06 | 河南华辰智控技术有限公司 | Anti-fatigue polishing device for metal material |
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Application publication date: 20170808 |